阅读说明：本技术 一种气体转移泵输系统及方法 (Gas transfer pump output system and method ) 是由 熊义富 唐涛 敬文勇 刘浪 张光辉 吴文清 雷强华 杨飞龙 于 2019-10-22 设计创作，主要内容包括：本发明公开一种气体转移泵输系统及方法,所述系统包括：第一容器,用于存储原始气体；升压单元,用于对原始气体进行升压至第二压力设定值得到第二升压气体；第二容器,用于存储第二升压气体；压力传感单元,用于测量气体压力值；控制单元,用于根据气体压力值控制升压单元并获取升压单元参数,以使根据升压单元参数判断升压单元的工作状态；真空单元,用于对升压单元和管路进行抽真空。本发明通过真空单元进行抽真空,提高了气体品位,控制单元通过压力传感单元传送过来的气体压力值控制升压单元,实现气体完美升压且提高了升压单元的使用寿命。(The invention discloses a gas transfer pump output system and a method, wherein the system comprises: a first container for storing raw gas; the pressure boosting unit is used for boosting the original gas to a second pressure set value to obtain second boosted gas; a second container for storing a second pressurised gas; the pressure sensing unit is used for measuring the gas pressure value; the control unit is used for controlling the boosting unit according to the gas pressure value and acquiring parameters of the boosting unit so as to judge the working state of the boosting unit according to the parameters of the boosting unit; and the vacuum unit is used for vacuumizing the pressure boosting unit and the pipeline. The invention improves the gas grade by vacuumizing the vacuum unit, and the control unit controls the boosting unit by the gas pressure value transmitted by the pressure sensing unit, thereby realizing perfect boosting of the gas and prolonging the service life of the boosting unit.)

1. A gas transfer pump output system, comprising:

a first container for storing raw gas;

the pressure boosting unit is communicated with the first container through a pipeline and used for boosting the original gas to a second pressure set value to obtain a second boosted gas;

the second container is communicated with the pressure boosting unit through a pipeline and is used for storing the second boosting gas;

the pressure sensing unit is respectively connected with the boosting unit, the first container and the second container and is used for measuring the gas pressure value;

the control unit is respectively connected with the pressure sensing unit and the boosting unit and is used for controlling the boosting unit according to the gas pressure value and acquiring parameters of the boosting unit so as to judge the working state of the boosting unit according to the parameters of the boosting unit;

and the vacuum unit is communicated with the pressure boosting unit through a pipeline and is used for vacuumizing the pressure boosting unit and the pipeline.

2. A gas transfer pump output system according to claim 1, wherein the boost unit comprises:

the first air pump is communicated with the first container through a pipeline, is connected with the control unit and is used for boosting the original gas to a first pressure set value under the control of the control unit to obtain first boosted gas, and meanwhile, the control unit obtains the working current of the first air pump so as to judge the working state of the first air pump according to the working current of the first air pump;

and the second air pump is respectively communicated with the first container, the first air pump and the second container through pipelines, is connected with the control unit and is used for boosting the first boosting gas or the original gas to a second pressure set value to obtain second boosting gas and conveying the second boosting gas to the second container, and meanwhile, the control unit acquires the working current of the second air pump so as to judge the working state of the second air pump according to the working current of the second air pump.

3. A gas transfer pump output system according to claim 2, wherein said pressure sensing unit comprises:

the first pressure sensor is arranged on a pipeline overlapped between the first pipeline and the second pipeline, is connected with the control unit, and is used for acquiring the pressure value of the original gas and sending the pressure value to the control unit; the first pipeline is a pipeline between the first container and the second air pump, and the second pipeline is a pipeline between the first container and the first air pump;

the second pressure sensor is arranged on a pipeline overlapped between the first pipeline and the third pipeline, is connected with the control unit, and is used for acquiring the pressure value of the first boosting gas and sending the pressure value to the control unit; the third pipeline is a pipeline between the first air pump and the second air pump;

the third pressure sensor is arranged on a pipeline overlapped between the fourth pipeline and the fifth pipeline, is connected with the control unit, and is used for acquiring the pressure value of the second boosting gas and sending the pressure value to the control unit; the fourth pipeline is a pipeline between the second air pump and the second container, and the fifth pipeline is a pipeline between the first air pump and the second container.

4. A gas transfer pump output system according to claim 2, further comprising:

the first temperature sensor is arranged opposite to the first air pump, connected with the control unit and used for acquiring the temperature of the first air pump to obtain a first temperature value and sending the first temperature value to the control unit;

the second temperature sensor is arranged opposite to the second air pump, connected with the control unit and used for acquiring the temperature of the second air pump to obtain a second temperature value and sending the second temperature value to the control unit;

and the refrigeration unit is respectively opposite to the first air pump and the second air pump and is connected with the control unit, and the control unit controls the refrigeration unit to cool the first air pump and/or the second air pump according to the first temperature value and/or the second temperature value.

5. A gas transfer pump output system according to claim 3, further comprising:

the first pneumatic valve is communicated with the first container pipeline and is connected with the control unit, when the pressure value of the original gas is larger than or equal to a third pressure set value, the first pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the first pneumatic valve;

the second pneumatic valve is respectively communicated with the vacuum unit and the first pneumatic valve pipeline and is connected with the control unit, when the pressure boosting unit and the system pipeline are vacuumized, the second pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the second pneumatic valve; the system pipeline comprises a first pipeline, a second pipeline, a third pipeline, a fourth pipeline and a fifth pipeline;

the third pneumatic valve is communicated with the first pneumatic valve pipeline and is connected with the control unit, when the pressure value of the original gas is larger than or equal to the first pressure set value, the third pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the third pneumatic valve;

the fourth pneumatic valve is communicated with the first pneumatic valve pipeline and is connected with the control unit, when the pressure value of the original gas is smaller than the first pressure set value and is larger than or equal to the third pressure set value, the fourth pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the fourth pneumatic valve;

the fifth pneumatic valve is communicated with the first air pump pipeline and is connected with the control unit, when the original gas is boosted to the first boosting gas through the first air pump, the fifth pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the fifth pneumatic valve;

the sixth pneumatic valve is respectively communicated with the fifth pneumatic valve and the third pneumatic valve through pipelines and is connected with the control unit, when the pressure value of the original gas or the pressure value of the first boosting gas is larger than or equal to the first pressure set value, the sixth pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the sixth pneumatic valve;

the seventh pneumatic valve is respectively communicated with the second air pump and the second container pipeline and is connected with the control unit, when the pressure value of the first boosting gas or the pressure value of the original gas is larger than or equal to the second pressure set value, the seventh pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the seventh pneumatic valve;

and the eighth pneumatic valve is communicated with the seventh pneumatic valve and the fifth pneumatic valve respectively and is connected with the control unit, when the boosting unit and the system pipeline are vacuumized, the eighth pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the second pneumatic valve.

6. A gas transfer pump output system according to claim 1, further comprising:

and the helium mass spectrometer leak detector is connected with the control unit and used for detecting the dynamic leakage rate and the static leakage rate of the boosting unit and searching leakage points under the control of the control unit.

7. A gas transfer pump output method for use in a gas transfer pump output system according to any one of claims 1 to 6, the method comprising the steps of:

s100, the control unit controls the vacuum unit to vacuumize the boosting unit and the system pipeline, and impurity gases in the boosting unit and the system pipeline are removed;

s200, when the vacuumizing is finished, the control unit controls the pressure boosting unit to boost the original gas in the first container to the second pressure set value to obtain second boosted gas, and the second boosted gas is conveyed to the second container.

8. The gas transfer pump output method of claim 7, further comprising, prior to S100:

the control unit acquires the static leakage rate and the dynamic leakage rate of the boosting unit through the helium mass spectrometer leak detector, and judges whether the static leakage rate or the dynamic leakage rate is larger than or equal to a set leakage rate value or not; if the static leak rate or the dynamic leak rate is larger than or equal to a set leak rate set value, controlling the helium mass spectrometer leak detector to inject leak detection liquid into the first air pump and/or the second air pump which are larger than or equal to the set leak rate set value to search for a leak point and process the leak point; and if the static leakage rate and the dynamic leakage rate are both smaller than the set leakage rate value, returning to the step S100.

9. The gas transfer pump output method of claim 7, wherein S100 is specifically:

the control unit controls the inlet and outlet valves of the first air pump and the inlet and outlet valves of the second air pump to be opened, and simultaneously controls the vacuum unit to start working, and the second pneumatic valve, the third pneumatic valve, the fifth pneumatic valve, the sixth pneumatic valve, the seventh pneumatic valve and the eighth pneumatic valve are all automatically opened, so that the vacuum unit is used for vacuumizing the first air pump, the second air pump and the system pipeline.

10. The gas transfer pump output method of claim 7, wherein S200 is specifically:

s2001, the control unit determines whether the pressure value of the raw gas is greater than or equal to the first set pressure value, if the pressure value of the raw gas is greater than or equal to the first set pressure value, step S2002 is executed, and if the pressure value of the raw gas is less than the first set pressure value, step S2003 is executed;

s2002, the control unit starts the second air pump, boosts the pressure of the original air to the second pressure setting value to obtain a second boosted air, and sends the second boosted air to the second container, and the process returns to step S2001;

s2003, the control unit starts the first air pump and the second air pump, boosts the original gas to the second pressure set value sequentially through the first air pump and the second air pump to obtain a second boosted gas, and transmits the second boosted gas to the second container, and determines whether the pressure value of the original gas is smaller than the third pressure set value; if the pressure value of the original gas is smaller than the third pressure set value, the first air pump and the second air pump are closed, and the transfer is stopped; if the pressure value of the original gas is greater than or equal to the third pressure set value, the process returns to step S2001.

Technical Field

The invention relates to the technical field of gas pressurization transfer, in particular to a gas transfer pump output system and a method.

Background

Energy, economy and environment are three major problems faced by the sustainable development of the human society at present, wherein the energy is the basis of the sustainable development of the economy and the environment, the international society has reached energy consensus in the last 90 th century, an ITER project is established to collaborate and develop thermonuclear fusion technology, and clean, safe and almost never-exhausted fusion energy is developed to solve the world energy problem. The tritium fuel circulation technology is one of the key technologies of thermonuclear fusion, the core basic equipment of the tritium fuel circulation technology is a pump delivery system, the circulation transfer, pressurization and evacuation treatment of hydrogen isotope gas are mainly realized, and the tritium fuel circulation technology also naturally becomes a key development and protection project of energy strategies of all countries.

For a long time, the equipment in China mainly depends on import from abroad, and recently, the equipment suppliers are almost purchased in the United states and comprehensively forbidden to use in China, so that the continuity of the research on the deuterium-tritium fuel circulation in China is seriously challenged; once the service gas circulation transfer system fails, the development of research work related to the circulation of deuterium-tritium fuel in China is directly affected seriously. The existing gas circulation transfer pump output system in China has the following defects: 1) evacuable but not pressurizable; 2) can be pressurized but the ultimate vacuum can not meet the process requirement.

Disclosure of Invention

The invention aims to provide a gas transfer pump output system with high efficiency, long service life and high quality.

To achieve the above object, the present invention provides a gas transfer pump delivery system, comprising:

a first container for storing raw gas;

the pressure boosting unit is communicated with the first container through a pipeline and used for boosting the original gas to a second pressure set value to obtain a second boosted gas;

the second container is communicated with the pressure boosting unit through a pipeline and is used for storing the second boosting gas;

the pressure sensing unit is respectively connected with the boosting unit, the first container and the second container and is used for measuring the gas pressure value;

the control unit is respectively connected with the pressure sensing unit and the boosting unit and is used for controlling the boosting unit according to the gas pressure value and acquiring parameters of the boosting unit so as to judge the working state of the boosting unit according to the parameters of the boosting unit;

and the vacuum unit is communicated with the pressure boosting unit through a pipeline and is used for vacuumizing the pressure boosting unit and the pipeline.

Preferably, the boosting unit includes:

the first air pump is communicated with the first container through a pipeline, is connected with the control unit and is used for boosting the original gas to a first pressure set value under the control of the control unit to obtain first boosted gas, and meanwhile, the control unit obtains the working current of the first air pump so as to judge the working state of the first air pump according to the working current of the first air pump;

and the second air pump is respectively communicated with the first container, the first air pump and the second container through pipelines, is connected with the control unit and is used for boosting the first boosting gas or the original gas to a second pressure set value to obtain second boosting gas and conveying the second boosting gas to the second container, and meanwhile, the control unit acquires the working current of the second air pump so as to judge the working state of the second air pump according to the working current of the second air pump.

Preferably, the pressure sensing unit includes:

the first pressure sensor is arranged on a pipeline overlapped between the first pipeline and the second pipeline, is connected with the control unit, and is used for acquiring the pressure value of the original gas and sending the pressure value to the control unit; the first pipeline is a pipeline between the first container and the second air pump, and the second pipeline is a pipeline between the first container and the first air pump;

the second pressure sensor is arranged on a pipeline overlapped between the first pipeline and the third pipeline, is connected with the control unit, and is used for acquiring the pressure value of the first boosting gas and sending the pressure value to the control unit; the third pipeline is a pipeline between the first air pump and the second air pump;

the third pressure sensor is arranged on a pipeline overlapped between the fourth pipeline and the fifth pipeline, is connected with the control unit, and is used for acquiring the pressure value of the second boosting gas and sending the pressure value to the control unit; the fourth pipeline is a pipeline between the second air pump and the second container, and the fifth pipeline is a pipeline between the first air pump and the second container.

Preferably, the gas transfer pump delivery system further comprises:

the first temperature sensor is arranged opposite to the first air pump, connected with the control unit and used for acquiring the temperature of the first air pump to obtain a first temperature value and sending the first temperature value to the control unit;

the second temperature sensor is arranged opposite to the second air pump, connected with the control unit and used for acquiring the temperature of the second air pump to obtain a second temperature value and sending the second temperature value to the control unit;

and the refrigeration unit is respectively opposite to the first air pump and the second air pump and is connected with the control unit, and the control unit controls the refrigeration unit to cool the first air pump and/or the second air pump according to the first temperature value and/or the second temperature value.

Preferably, the gas transfer pump delivery system further comprises:

the first pneumatic valve is communicated with the first container pipeline and is connected with the control unit, when the pressure value of the original gas is larger than or equal to a third pressure set value, the first pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the first pneumatic valve;

the second pneumatic valve is respectively communicated with the vacuum unit and the first pneumatic valve pipeline and is connected with the control unit, when the pressure boosting unit and the system pipeline are vacuumized, the second pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the second pneumatic valve; the system pipeline comprises a first pipeline, a second pipeline, a third pipeline, a fourth pipeline and a fifth pipeline;

the third pneumatic valve is communicated with the first pneumatic valve pipeline and is connected with the control unit, when the pressure value of the original gas is larger than or equal to the first pressure set value, the third pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the third pneumatic valve;

the fourth pneumatic valve is communicated with the first pneumatic valve pipeline and is connected with the control unit, when the pressure value of the original gas is smaller than the first pressure set value and is larger than or equal to the third pressure set value, the fourth pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the fourth pneumatic valve;

the fifth pneumatic valve is communicated with the first air pump pipeline and is connected with the control unit, when the original gas is boosted to the first boosting gas through the first air pump, the fifth pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the fifth pneumatic valve;

the sixth pneumatic valve is respectively communicated with the fifth pneumatic valve and the third pneumatic valve through pipelines and is connected with the control unit, when the pressure value of the original gas or the pressure value of the first boosting gas is larger than or equal to the first pressure set value, the sixth pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the sixth pneumatic valve;

the seventh pneumatic valve is respectively communicated with the second air pump and the second container pipeline and is connected with the control unit, when the pressure value of the first boosting gas or the pressure value of the original gas is larger than or equal to the second pressure set value, the seventh pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the seventh pneumatic valve;

the eighth pneumatic valve is respectively communicated with the seventh pneumatic valve and the fifth pneumatic valve and is connected with the control unit, when the boosting unit and the system pipeline are vacuumized, the eighth pneumatic valve is automatically opened, and meanwhile, the control unit acquires the working state of the second pneumatic valve;

preferably, the gas transfer pump delivery system further comprises:

and the helium mass spectrometer leak detector is connected with the control unit and used for detecting the dynamic leakage rate and the static leakage rate of the boosting unit and searching leakage points under the control of the control unit.

The invention also provides a gas transfer pump output method, which comprises the following steps:

s100, the control unit controls the vacuum unit to vacuumize the boosting unit and the system pipeline, and impurity gases in the boosting unit and the system pipeline are removed;

s200, when the vacuumizing is finished, the control unit controls the pressure boosting unit to boost the original gas in the first container to the second pressure set value to obtain second boosted gas, and the second boosted gas is conveyed to the second container.

Preferably, the gas transfer pump output method further comprises, before S100:

the control unit acquires the static leakage rate and the dynamic leakage rate of the boosting unit through the helium mass spectrometer leak detector, and judges whether the static leakage rate or the dynamic leakage rate is larger than or equal to a set leakage rate value or not; if the static leak rate or the dynamic leak rate is larger than or equal to a set leak rate set value, controlling the helium mass spectrometer leak detector to inject leak detection liquid into the first air pump and/or the second air pump which are larger than or equal to the set leak rate set value to search for a leak point and process the leak point; and if the static leakage rate and the dynamic leakage rate are both smaller than the set leakage rate value, returning to the step S100.

Preferably, the S100 is specifically:

the control unit controls the inlet and outlet valves of the first air pump and the inlet and outlet valves of the second air pump to be opened, and simultaneously controls the vacuum unit to start working, and the second pneumatic valve, the third pneumatic valve, the fifth pneumatic valve, the sixth pneumatic valve, the seventh pneumatic valve and the eighth pneumatic valve are all automatically opened, so that the vacuum unit is used for vacuumizing the first air pump, the second air pump and the system pipeline.

Preferably, the S200 is specifically:

s2001, the control unit determines whether the pressure value of the raw gas is greater than or equal to the first set pressure value, if the pressure value of the raw gas is greater than or equal to the first set pressure value, step S2002 is executed, and if the pressure value of the raw gas is less than the first set pressure value, step S2003 is executed;

s2002, the control unit starts the second air pump, boosts the pressure of the original air to the second pressure setting value to obtain a second boosted air, and sends the second boosted air to the second container, and the process returns to step S2001;

s2003, the control unit starts the first air pump and the second air pump, boosts the original gas to the second pressure set value sequentially through the first air pump and the second air pump to obtain a second boosted gas, and transmits the second boosted gas to the second container, and determines whether the pressure value of the original gas is smaller than the third pressure set value; if the pressure value of the original gas is smaller than the third pressure set value, the first air pump and the second air pump are closed, and the transfer is stopped; if the pressure value of the original gas is greater than or equal to the third pressure set value, the process returns to step S2001.

According to the specific embodiment provided by the invention, the invention discloses the following technical effects:

according to the invention, the gas is boosted to reach the set pressure value through the boosting unit, the pressure sensing unit is arranged, and the control unit intelligently controls the boosting unit according to the pressure data transmitted by the pressure sensing unit, so that the working efficiency is improved, and the service life of the boosting unit can be prolonged; meanwhile, the system is provided with a vacuum unit, and the pipeline of the pressure boosting unit is vacuumized before the system performs gas transfer, so that the influence of other gases on the gas transfer process is avoided, and the grade is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of the structure of the gas transfer pump delivery system of the present invention.

In the figure: 1-first container, 2-second container, 3-first air pump, 4-second air pump, 5-vacuum unit, 6-first pressure sensor, 7-second pressure sensor, 8-third pressure sensor, 9-first pneumatic valve, 10-second pneumatic valve, 11-third pneumatic valve, 12-fourth pneumatic valve, 13-fifth pneumatic valve, 14-sixth pneumatic valve, 15-seventh pneumatic valve, 16-eighth pneumatic valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a gas transfer pump output system and a method with high efficiency, long service life and high quality.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1, the gas transfer pump delivery system of the present invention comprises: the device comprises a first container 1, a pressure boosting unit, a second container 2, a pressure sensing unit, a control unit and a vacuum unit 5.

Wherein the first container 1 is used for storing raw gas.

The boosting unit specifically includes: a first air pump 3 and a second air pump 4.

In this embodiment, the first air pump 3 is a 7PLUS pump; the second air pump 4 employs a MV6 pump.

Specifically, the first air pump 3 is communicated with the first container 1 through a pipeline and is connected with the control unit, the control unit controls the first air pump 3 to boost the original gas to a first pressure set value to obtain a first boosted gas, and meanwhile, the control unit obtains the working current of the first air pump 3, so that the working state of the first air pump 3 is judged according to the working current of the first air pump 3; the control unit judges whether the first air pump 3 is in a normal working state by judging whether the working current of the first air pump 3 is within a set threshold value range.

The second air pump 4 is respectively communicated with the first container 1, the first air pump 3 and the second container 2 through pipelines, and is connected with the control unit, the control unit controls the second air pump 4 to boost the first boosted air or the original air to a second pressure set value to obtain second boosted air, and the second boosted air is conveyed to the second container 2, and meanwhile, the control unit obtains the working current of the second air pump 4, so that the working state of the second air pump 4 is judged according to the working current of the second air pump 4; the control unit determines whether the second air pump 4 is in a normal operating state by determining whether the operating current of the second air pump 4 is within a set threshold range. The control unit may also acquire the amount of transferred gas through the second gas pump 4.

Preferably, in order to avoid damage to the first air pump 3 and the second air pump 4 due to too high operating temperatures, the gas transfer pump delivery system is further provided with a first temperature sensor, a second temperature sensor and a refrigeration unit.

The first temperature sensor is arranged opposite to the first air pump 3, and is used for acquiring the temperature of the first air pump 3 to obtain a first temperature value; meanwhile, the first temperature sensor is connected with the control unit, and the control unit acquires the first temperature value.

The second temperature sensor is arranged opposite to the second air pump 4, and is used for acquiring the temperature of the second air pump 4 to obtain a second temperature value; meanwhile, the second temperature sensor is connected with the control unit, and the control unit acquires the second temperature value.

The refrigeration unit is respectively opposite to the first air pump 3 and the second air pump 4 and is connected with the control unit, and the control unit controls the refrigeration unit to cool the first air pump 3 and/or the second air pump 4 according to the first temperature value and/or the second temperature value.

In this embodiment, the refrigeration unit employs a cooling fan, and the control unit obtains a working current of the cooling fan and determines whether the working current is within a set threshold range to determine whether the cooling fan is working normally.

The second container 2 is communicated with the second air pump 4 through a pipeline and is used for storing the second boosting gas.

Specifically, the pressure sensing unit includes: a first pressure sensor 6, a second pressure sensor 7 and a third pressure sensor 8.

The first pressure sensor 6 is disposed on a pipeline overlapped between the first pipeline and the second pipeline, connected to the control unit, and configured to acquire a pressure value of the raw gas and send the pressure value to the control unit.

The second pressure sensor 7 is disposed on a pipeline overlapped between the first pipeline and the third pipeline, connected to the control unit, and configured to acquire a pressure value of the first boost gas and send the pressure value to the control unit.

And the third pressure sensor 8 is arranged on a pipeline overlapped between the fourth pipeline and the fifth pipeline, is connected with the control unit, and is used for acquiring the pressure value of the second boosting gas and sending the pressure value to the control unit.

Specifically, the first pipeline is a pipeline between the first container 1 and the second air pump 4; the second pipeline is a pipeline between the first container 1 and the first air pump 3; the third pipeline is a pipeline between the first air pump 3 and the second air pump 4; the fourth pipeline is a pipeline between the second air pump 4 and the second container 2; the fifth pipeline is a pipeline between the first air pump 3 and the second container 2.

The control unit intelligently controls the first air pump 3 and the second air pump 4 according to the pressure value of the original gas and/or the pressure value of the first boosting gas to realize boosting transfer of the original gas, and meanwhile, the control unit acquires the pressure value of the second boosting gas through the third pressure sensor 8 and judges whether the pressure value of the second boosting gas reaches the second set pressure value or not and records the second set pressure value.

The vacuum unit 5 is respectively communicated with the first air pump 3 and the second air pump 4 through a system pipeline, and the control unit controls the vacuum unit 5 to vacuumize the first air pump 3, the second air pump 4 and the system pipeline. The system pipeline specifically comprises: the first, second, third, fourth, and fifth pipelines.

The system pipeline is made of beta-radiation-resistant polyimide.

Preferably, the gas transfer pump delivery system further comprises: helium mass spectrometer leak detector.

The helium mass spectrometer leak detector is arranged opposite to the first air pump 3 and the second air pump 4, the control unit controls the helium mass spectrometer leak detector to detect the dynamic leakage rate and the static leakage rate of the first air pump 3 and the second air pump 4, and if the static leakage rate or the dynamic leakage rate is larger than or equal to a set leakage rate set value, the helium mass spectrometer leak detector is controlled to inject leakage detection liquid into the first air pump 3 and/or the second air pump 4, wherein the leakage detection liquid is larger than or equal to the set leakage rate set value to search for leakage points and process the leakage points.

In order to realize the evacuation of the system pipeline and the first air pump 3 and the second air pump 4, and to realize the final pressure boost of the original gas by the intelligent work of the quality inspection of the first air pump 3 and the second air pump 4, the gas transfer pump input system further comprises: a first air-operated valve 9, a second air-operated valve 10, a third air-operated valve 11, a fourth air-operated valve 12, a fifth air-operated valve 13, a sixth air-operated valve 14, a seventh air-operated valve 15, and an eighth air-operated valve 16.

Specifically, the first pneumatic valve 9 is communicated with the first container 1 through a pipeline and is connected with the control unit, when the pressure value of the original gas is greater than or equal to a third pressure set value, the first pneumatic valve 9 is automatically opened, and meanwhile, the control unit acquires the on-off state of the first pneumatic valve 9.

The second pneumatic valve 10 is respectively communicated with the vacuum unit 5 and the first pneumatic valve 9 through pipelines and is connected with the control unit, when the first pneumatic pump 3 and the second pneumatic pump 4 and the system pipeline are vacuumized, the second pneumatic valve 10 is automatically opened, and meanwhile, the control unit acquires the on-off state of the second pneumatic valve 10.

The third pneumatic valve 11 is communicated with the first pneumatic valve 9 through a pipeline and is connected with the control unit, when the pressure value of the original gas is larger than or equal to the first pressure set value, the third pneumatic valve 11 is automatically opened, and meanwhile, the control unit acquires the on-off state of the third pneumatic valve 11.

The fourth pneumatic valve 12 is communicated with the first pneumatic valve 9 through a pipeline and is connected with the control unit, when the pressure value of the original gas is smaller than the first pressure set value and larger than or equal to the third pressure set value, the fourth pneumatic valve 12 is automatically opened, and meanwhile, the control unit obtains the on-off state of the fourth pneumatic valve 12.

The fifth pneumatic valve 13 is communicated with the first pneumatic pump 3 through a pipeline and is connected with the control unit, when the original gas is boosted to the first boosting gas through the first pneumatic pump 3, the fifth pneumatic valve 13 is automatically opened, and meanwhile, the control unit acquires the switching state of the fifth pneumatic valve 13.

The sixth pneumatic valve 14 is respectively communicated with the fifth pneumatic valve 13 and the third pneumatic valve 11 through pipelines, and is connected with the control unit, when the pressure value of the original gas or the pressure value of the first boosting gas is larger than or equal to the first pressure set value, the sixth pneumatic valve 14 is automatically opened, and meanwhile, the control unit acquires the on-off state of the sixth pneumatic valve 14.

The seventh pneumatic valve 15 is respectively communicated with the second air pump 4 and the second container 2 through a pipeline, and is connected with the control unit, when the pressure value of the first boosting gas or the pressure value of the original gas is greater than or equal to the second pressure set value, the seventh pneumatic valve 15 is automatically opened, and meanwhile, the control unit acquires the on-off state of the seventh pneumatic valve 15.

The eighth pneumatic valve 16 is respectively communicated with the seventh pneumatic valve 15 and the fifth pneumatic valve 13 through pipelines and is connected with the control unit, when the first pneumatic pump 3, the second pneumatic pump 4 and the system pipeline are vacuumized, the eighth pneumatic valve 16 is automatically opened, and meanwhile, the control unit acquires the on-off state of the second pneumatic valve 16.

And the control unit judges whether the gas transfer process has misoperation according to the switching states, current states and temperature states of the first air pump 3 and the second air pump 4, the switching states of the first air valve 9, the second air valve 10, the third air valve 11, the fourth air valve 12, the fifth air valve 13, the sixth air valve 14, the seventh air valve 15 and the eighth air valve 16 and the current state of the cooling fan, if the misoperation occurs, the transfer is terminated, and an alarm signal is sent.

In order to realize the automatic gas transfer and treatment of the system, the invention also provides a gas transfer pump output method, which specifically comprises the following steps:

and S100, the control unit controls the vacuum unit 5 to vacuumize the first air pump 3, the second air pump 4 and the system pipeline, and remove impurity gases in the first air pump 3, the second air pump 4 and the system pipeline.

And S200, when the vacuumizing is finished, the control unit controls the first air pump 3 and the second air pump 4 to boost the original gas in the first container 1 to the second pressure set value to obtain second boosted gas, and the second boosted gas is conveyed to the second container 2.

Wherein, the step S100 specifically includes:

the control unit controls the vacuum unit 5 to start working, and simultaneously the control unit controls the first air pump 3 and the second air pump 4 to open the inlet and outlet valves, the second air-operated valve 10, the third air-operated valve 11, the fourth air-operated valve 12, the fifth air-operated valve 13, the seventh air-operated valve 15 and the eighth air-operated valve 16 are all automatically opened, and evacuation starts. The control unit compares the pressure values transmitted by the first pressure sensor 6, the second pressure sensor 7 and the third pressure sensor 8 with a set vacuum pressure value, and the vacuumizing is stopped until the pressure values transmitted by the first pressure sensor 6, the second pressure sensor 7 and the third pressure sensor 8 are all larger than or equal to the set vacuum pressure value; the control unit controls the vacuum unit 5 to stop working, and simultaneously the control unit controls the first air pump 3 and the second air pump 4 to close the inlet and outlet valves, and the second air-operated valve 10, the third air-operated valve 11, the fourth air-operated valve 12, the fifth air-operated valve 13, the seventh air-operated valve 15 and the eighth air-operated valve 16 are all automatically closed.

Preferably, in order to avoid the reduction of the gas pressure and the pollution caused by the leakage in the gas transferring process, the method further performs leakage rate detection and leakage point detection on the first gas pump 3 and the second gas pump 4 by using a helium-cladding method before the step S100.

Specifically, the control unit obtains a static leak rate and a dynamic leak rate of the first air pump 3 and the second air pump 4 through the helium mass spectrometer leak detector, and determines whether the static leak rate or the dynamic leak rate is greater than or equal to a set leak rate value; if the static leak rate or the dynamic leak rate is larger than or equal to a set leak rate set value, controlling the helium mass spectrometer leak detector to inject leak detection liquid into the first air pump 3 or the second air pump 4 to search for a leak point and perform treatment; and if the static leakage rate and the dynamic leakage rate are both smaller than the set leakage rate value, returning to the step S100. The control unit controls the helium mass spectrometer leak detector according to the static leak rate and/or the dynamic leak rate, and the leak point of the first air pump 3 or the second air pump 4 can be searched independently, or the leak point of the first air pump 3 and the leak point of the second air pump 4 can be searched simultaneously by the helium mass spectrometer leak detector.

The method for detecting the static leakage rate of the first air pump 3 and the second air pump 4 specifically comprises the following steps:

the control unit controls the first air pump 3 and the second air pump 4 to open an inlet and outlet valve, the control unit controls the helium mass spectrometer leak detector to fill helium with the first pressure set value and the first concentration set value into the first air pump 3 and the second air pump 4, and the control unit controls the first air pump 3 and the second air pump 4 to close the inlet and outlet valve; and (4) performing static leak rate detection by adopting a helium wrapping method.

The method for detecting the dynamic leakage rate of the first air pump 3 and the second air pump 4 specifically comprises the following steps:

the control unit starts the first air pump 3 and the second air pump 4, controls the helium mass spectrometer leak detector to enable helium gas with the pressure of the first pressure set value and the concentration of the first concentration set value to sequentially pass through the inlet and the outlet of the first air pump 3 and the inlet and the outlet of the second air pump 4, and performs dynamic leak rate detection by a helium packing method.

In this embodiment, the first pressure setting is 100 kPa; the first concentration set point is 99.999%.

Further, the S200 includes:

s2001, the control unit determines whether the pressure value of the raw gas is greater than or equal to the first set pressure value, if the pressure value of the raw gas is greater than or equal to the first set pressure value, step S2002 is executed, and if the pressure value of the raw gas is less than the first set pressure value, step S2003 is executed.

S2002, the control unit starts the second air pump 4, boosts the pressure of the raw gas to the second pressure setting value to obtain the second boosted gas, and sends the second boosted gas to the second container 2, and the process returns to step S2001.

S2003, the control unit starts the first air pump 3 and the second air pump 4, boosts the original gas to the second pressure set value sequentially through the first air pump 3 and the second air pump 4 to obtain a second boosted gas, and transmits the second boosted gas to the second container 2, and determines whether the pressure value of the original gas is smaller than the third pressure set value; if the pressure value of the original gas is smaller than the third pressure set value, the first air pump 3 and the second air pump 4 are closed, and the transfer is stopped; if the pressure value of the original gas is greater than or equal to the third pressure set value, the process returns to step S2001.

In this embodiment, the second pressure setting is 1000kPa, and the third pressure setting is 20 kPa.

Wherein the step S2002 specifically is:

the control unit starts the second air pump 4, the first pneumatic valve 9, the third pneumatic valve 11, the sixth pneumatic valve 14 and the seventh pneumatic valve 15 are sequentially and automatically opened, and the second air pump 4 boosts the original air to a second pressure set value to obtain a second boosted air, and transfers the second boosted air to the second container 2.

The step S2003 specifically includes:

the control unit starts the first air pump 3 and the second air pump 4, the first pneumatic valve 9 and the fourth pneumatic valve 12 are sequentially and automatically opened, and the first air pump 3 boosts the original air to the first pressure set value to obtain the first boosted air; the fifth pneumatic valve 13, the sixth pneumatic valve 14, and the seventh pneumatic valve 15 are sequentially and automatically turned on, and the second air pump 4 boosts the first boosted pressure gas to the second pressure set value to obtain the second boosted pressure gas, and transfers the second boosted pressure gas to the second container 2.

According to the invention, the control unit intelligently controls the first air pump 3 and the second air pump 4, so that the efficiency and the quality of air boosting and transferring are greatly improved, and the service lives of the first air pump 3 and the second air pump 4 are prolonged; meanwhile, the leakage rate of the first air pump 3 and the second air pump 4 is detected, so that the leakage in the gas transfer process is avoided, the system is vacuumized before the gas is transferred, and the final grade of the second boosting gas is improved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.