阅读说明：本技术 一种用于制氧系统的气体检测装置及其工作方法 (Gas detection device for oxygen generation system and working method thereof ) 是由 朱保义 沈岑宽 卢山龙 任永刚 陈华勇 胡磊 吴国庆 王武钧 于 2019-10-08 设计创作，主要内容包括：一种用于制氧系统的气体检测装置及其工作方法,该装置包括净气工装,净气工装连接中转管道,中转管道的一端通过管道连接有空压机,中转管道的另一端连接出气口,空压机通过管道连接有膜分离装置,空压机与膜分离装置之间的管道上设置有压力变送器,膜分离装置通过管道依次连接增压泵与换热器,换热器连接尾管的一端,尾管分别连接检测管的一端与出气口,检测管的另一端通过风机连接中转管道；在检测时,通过每隔预设时间T进行采样,并对样品进行检测,由于检测管内的样品处于静态,有助于提升检测值的稳定性与准确性,检测完成后会对检测管进行清理,降低相邻两次检测之间的干扰。(A gas detection device for an oxygen generation system and a working method thereof are disclosed, the device comprises a gas purification tool, the gas purification tool is connected with a transfer pipeline, one end of the transfer pipeline is connected with an air compressor through a pipeline, the other end of the transfer pipeline is connected with an air outlet, the air compressor is connected with a membrane separation device through a pipeline, a pressure transmitter is arranged on the pipeline between the air compressor and the membrane separation device, the membrane separation device is sequentially connected with a booster pump and a heat exchanger through a pipeline, the heat exchanger is connected with one end of a tail pipe, the tail pipe is respectively connected with one end and the air outlet of a detection pipe, and the other end; when detecting, sample through every preset time T to detect the sample, because the sample in the detecting tube is in static state, help promoting the stability and the accuracy of detected value, can clear up the detecting tube after detecting the completion, reduce the interference between the adjacent twice detection.)

1. The utility model provides a gaseous detection device for system oxygen system, a serial communication port, including net gas frock (1), net gas frock (1) is connected transfer pipeline (2), the one end of transfer pipeline (2) has air compressor machine (3) through the pipe connection, the gas outlet is connected to the other end of transfer pipeline (2), there are membrane separation device (4) air compressor machine (3) through the pipe connection, be provided with pressure transmitter (31) on the pipeline between air compressor machine (3) and membrane separation device (4), membrane separation device connects booster pump (43) and heat exchanger (5) through the pipeline in proper order, the one end of tail pipe (51) is connected in heat exchanger (5), the one end and the gas outlet of detecting tube (8) are connected respectively in tail pipe (51), the other end of detecting tube (8) passes through fan (9) and connects transfer pipeline (2), fan (9) and the interface setting of transfer pipeline (2) are at the gas outlet and net gas frock (1) and transfer pipeline (2) interface setting of transfer pipeline ( Valves are arranged between the interface of the fan (9) and the transit pipeline (2) and the interface of the gas purifying tool (1) and the transit pipeline (2);

an oxygen-enriched outlet pipe (42) and a nitrogen outlet pipe (41) are arranged on the membrane separation device (4), a booster pump (43) is connected onto the oxygen-enriched outlet pipe (42), the booster pump (43) boosts oxygen-enriched air and then inputs the oxygen-enriched air into the heat exchanger (5), a first detection device (54) is arranged on the oxygen-enriched outlet pipe (42), the first detection device (54) is used for detecting the temperature and the pressure of compressed air input into the heat exchanger, the heat exchanger (5) is connected with one end of a compressed air outlet pipe (53), the other end of the compressed air outlet pipe (53) is connected with one end of a thin caliber of a funnel pipe (56), one end of the thick caliber of the funnel pipe (56) is connected with one end of a tail pipe (51), a second detection device (55) is arranged on the compressed air outlet pipe (53), and the second detection device (55);

the detection pipe (8) comprises a main pipe (81), a first valve (82) is arranged at one end of the main pipe (81) connected with the tail pipe (51), the other end of the main pipe (81) is connected with an air outlet pipe of the fan (9), the main pipe (81) is connected with an exhaust detection pipe (85), and a dew point detector (83) and a second valve (84) are arranged on the exhaust detection pipe (85);

the air outlet pipe of the fan (9) is connected with the transfer pipeline (2), and a valve is arranged on the air outlet pipe of the fan (9).

2. The gas detection device for the oxygen generation system according to claim 1, wherein the gas purification tool (1) comprises a fan (11), an air inlet (12) of the fan (11) is connected with a filter device (13), the filter device (13) is of a structure with multiple layers of filter cloth arranged in a cylindrical shell, a purified gas outlet pipe (14) is arranged at the bottom of the filter device (13), the filter device (13) is connected with a transfer pipeline through the purified gas outlet pipe (14), the filter device (13) and the fan (11) are both fixedly arranged on a base (16) through a fixing frame (15), and the gas purification tool (1) is fixedly arranged on a working platform through the base (16).

3. The gas detection device for an oxygen generation system according to claim 1, wherein the main pipe (81) is arranged perpendicular to an outlet pipe of the blower (9).

4. The gas detection device for the oxygen generation system according to claim 1, wherein the gas detection device comprises a control module (7), and the control module (7) is configured to collect a temperature value and a pressure value detected by the first detection device (54), a temperature value and a pressure value detected by the second detection device (55), a dew point value detected by the dew point detector (83), and an outlet pressure value of the air compressor (3) detected by the pressure transmitter (31), and control the detection device according to detected data.

5. The gas detection device for an oxygen generation system according to claim 1, comprising a human-computer interaction module (6), wherein the human-computer interaction module (6) is configured to receive the data processed by the control module (6) and to express the processed data in the form of a graph and a numerical value.

6. The working method of the gas detection device for the oxygen generation system is characterized by comprising the following steps of:

a valve between a clean air outlet pipe (14) interface on the transfer pipeline (2) and an air outlet pipe interface of the fan (9) is closed, the air is extracted by the clean air tool (1), the air is filtered by the filtering device (13) to remove particles in the air, and the filtered air is input into the air compressor (3) through the pipeline;

the air compressor (3) compresses air to remove water and then inputs the air into the membrane separation device (4), the membrane separation device (4) separates the compressed air to obtain oxygen-enriched compressed air and compressed mixed gas mainly containing nitrogen, wherein the oxygen-enriched compressed gas is transmitted into the heat exchanger (5) through the oxygen-enriched outlet pipe (42), the mixed gas mainly containing nitrogen is discharged, and the heat exchanger (5) exchanges heat and cools the oxygen-enriched compressed gas and then outputs the oxygen-enriched compressed gas through the tail pipe (51);

opening a first valve (82) at intervals of set time T, allowing part of the oxygen-enriched compressed air to enter a detection pipe (8), closing the first valve (82) after the preset time T2, then closing a valve arranged on an air outlet pipe of a fan (9), and detecting the dew point and the temperature of the oxygen-enriched compressed air passing through an exhaust detection pipe (85);

and (3) closing the first valve (82), opening a valve arranged on an air outlet pipe of the fan (9), opening the fan (9), and closing the second valve (84), the fan and the valve arranged on the air outlet pipe of the fan (9) after a preset time T1.

Technical Field

The invention belongs to the technical field of detection of oxygen generation systems, and particularly relates to a gas detection device for an oxygen generation system and a working method thereof.

Background

Oxygen is a necessary gas for human beings, is the second major component in the air, and compressed oxygen and high-concentration oxygen have wide application in medical treatment, experiments and other aspects, and on the plateau train, in order to avoid danger caused by the occurrence of altitude reaction of passengers, an oxygen generation system can be additionally arranged on the train, so that high-concentration oxygen is provided for the carriage of the train.

However, when the oxygen generation system produces high-concentration oxygen, high-pressure treatment needs to be performed on air, various parameters in the production process need to be monitored in order to ensure the production safety and the quality of the produced oxygen-enriched gas, but in the prior art, the oxygen-enriched compressed gas is in a high-speed flowing state in the production process, and the detection deviation of temperature and dew point is large due to the fact that the oxygen-enriched compressed gas contains high moisture, so that the quality and the production safety of the oxygen-enriched compressed gas cannot be guaranteed, and in order to solve the problem, the invention provides the following technical scheme.

Disclosure of Invention

The invention aims to provide a gas detection device for an oxygen generation system and a working method thereof.

The technical problems to be solved by the invention are as follows:

in the prior art, in the process of preparing high-concentration oxygen, the oxygen-enriched compressed gas is in a high-speed flowing state, and the oxygen-enriched compressed gas contains higher moisture, so that the temperature detection and dew point detection deviation are larger, and the quality and production safety of the oxygen-enriched compressed gas cannot be guaranteed.

The purpose of the invention can be realized by the following technical scheme:

a gas detection device for an oxygen generation system comprises a gas purification tool, wherein the gas purification tool is connected with a transfer pipeline, one end of the transfer pipeline is connected with an air compressor through a pipeline, the other end of the transfer pipeline is connected with an air outlet, the air compressor is connected with a membrane separation device through a pipeline, a pressure transmitter is arranged on the pipeline between the air compressor and the membrane separation device, the membrane separation device is sequentially connected with a booster pump and a heat exchanger through pipelines, the heat exchanger is connected with one end of a tail pipe, the tail pipe is respectively connected with one end and the air outlet of a detection pipe, the other end of the detection pipe is connected with the transfer pipeline through a fan, a connector of the fan and the transfer pipeline is arranged between the air outlet of the transfer pipeline and a connector of the gas purification tool and the transfer pipeline, and valves are;

the membrane separation device is provided with an oxygen-enriched outlet pipe and a nitrogen outlet pipe, the oxygen-enriched outlet pipe is connected with a booster pump, the booster pump boosts oxygen-enriched air and then inputs the oxygen-enriched air into the heat exchanger, the oxygen-enriched outlet pipe is provided with a first detection device, the first detection device is used for detecting the temperature and the pressure of compressed air input into the heat exchanger, the heat exchanger is connected with one end of a compressed air outlet pipe, the other end of the compressed air outlet pipe is connected with one end with a small caliber of the funnel pipe, one end with a large caliber of the funnel pipe is connected with one end of a tail pipe, the compressed air outlet pipe is provided with a second detection device, and the;

the detection pipe comprises a main pipe, one end of the main pipe, which is connected with the tail pipe, is provided with a first valve, the other end of the main pipe is connected with an air outlet pipe of the fan, the main pipe is connected with an exhaust detection pipe, and a dew point detector and a second valve are arranged on the exhaust detection pipe;

the air outlet pipe of the fan is connected with the transfer pipeline, and a valve is arranged on the air outlet pipe of the fan.

According to a further scheme of the invention, the air purification tool comprises a fan, an air inlet of the fan is connected with a filtering device, the filtering device is of a structure that a plurality of layers of filter cloth are arranged in a cylindrical shell, a purified air outlet pipe is arranged at the bottom of the filtering device, the filtering device is connected with a transfer pipeline through the purified air outlet pipe, the filtering device and the fan are fixedly arranged on a base through a fixing frame, and the air purification tool is fixedly arranged on a working platform through the base.

As a further scheme of the invention, the main pipe is vertically arranged with an air outlet pipe of the fan.

As a further scheme of the present invention, the gas detection device includes a control module, and the control module is configured to collect a temperature value and a pressure value detected by the first detection device, a temperature value and a pressure value detected by the second detection device, a dew point value detected by the dew point detector, and an outlet pressure value of the air compressor detected by the pressure transmitter, and control the detection device according to detected data.

As a further scheme of the invention, the gas detection device comprises a human-computer interaction module, wherein the human-computer interaction module is used for receiving data processed by the control module and expressing the processed data in the form of a chart and a numerical value.

A working method of a gas detection device for an oxygen generation system comprises the following steps:

closing a valve between a purified air outlet pipe interface on the transfer pipeline and an air outlet pipe interface of the fan, extracting air by using a purified air tool, filtering the air by using a filtering device to remove particles in the air, and inputting the filtered air into an air compressor through a pipeline;

the air is compressed by an air compressor to remove water and then is input into a membrane separation device, the membrane separation device separates the compressed air to obtain oxygen-enriched compressed air and compressed mixed gas mainly containing nitrogen, wherein the oxygen-enriched compressed gas is transmitted into a heat exchanger through an oxygen-enriched outlet pipe, the mixed gas mainly containing nitrogen is discharged, and the heat exchanger exchanges heat and cools the oxygen-enriched compressed gas and then outputs the oxygen-enriched compressed gas through a tail pipe;

opening a first valve every set time T, enabling part of the oxygen-enriched compressed air to enter a detection pipe, closing the first valve after a preset time T2, then closing a valve arranged on an air outlet pipe of a fan, and detecting the dew point and the temperature of the oxygen-enriched compressed air passing through an exhaust detection pipe;

and closing the first valve, opening a valve arranged on an air outlet pipe of the fan, opening the fan, and closing the second valve, the fan and the valve arranged on the air outlet pipe of the fan after a preset time T1.

The invention has the beneficial effects that:

1. according to the invention, the air purification tool is arranged and comprises the fan, the air inlet of the fan is connected with the filtering device, the filtering device is of a structure that multiple layers of filter cloth are arranged in the cylindrical shell, the bottom of the filtering device is provided with the air purification outlet pipe, the filtering device is connected with the transfer pipeline through the air purification outlet pipe, the air can be filtered through the air purification tool, dust particles in the air are preliminarily removed, the product quality is improved, and the follow-up production is convenient to carry out.

2. When the air-conditioner is in work, the first valve is opened every set time T, part of oxygen-enriched compressed air enters the detection pipe, after the preset time T2, the first valve is closed, then the valve arranged on the air outlet pipe of the fan is closed, the dew point and the temperature of the oxygen-enriched compressed air passing through the exhaust detection pipe are detected, the first valve is closed, the valve arranged on the air outlet pipe of the fan is opened, the fan is started, after the preset time T1, the second valve, the fan and the valve arranged on the air outlet pipe of the fan are closed, namely, during detection, sampling is carried out every preset time T, and samples are detected.

Drawings

The invention is described in further detail below with reference to the figures and specific embodiments.

FIG. 1 is a schematic structural view of a gas detection device according to the present invention;

FIG. 2 is a schematic view of the structure of the detection tube;

FIG. 3 is a schematic structural view of a gas cleaning tool;

fig. 4 is a schematic structural diagram of a heat exchanger.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.

A gas detection device for an oxygen generation system comprises a gas purification tool 1, wherein the gas purification tool is connected with a transfer pipeline 2 through a pipeline, one end of the transfer pipeline 2 is connected with an air compressor 3 through a pipeline, the other end of the transfer pipeline 2 is connected with an air outlet, the air compressor 3 is connected with a membrane separation device 4 through a pipeline, a pressure transmitter 31 is arranged on the pipeline between the air compressor 3 and the membrane separation device 4, the membrane separation device is sequentially connected with a booster pump 43 and a heat exchanger 5 through a pipeline, the heat exchanger 5 is connected with one end of a tail pipe 51, the tail pipe 51 is respectively connected with one end and the air outlet of a detection pipe 8, the other end of the detection pipe 8 is connected with the transfer pipeline 2 through a fan 9, and an interface of the fan 9 and the transfer pipeline 2 is arranged between the air outlet of the transfer pipeline, valves are arranged between the interface of the fan 9 and the transit pipeline 2 and the interface of the gas purifying tool 1 and the transit pipeline 2;

as shown in fig. 2-4, the gas purification tool 1 includes a fan 11, an air inlet 12 of the fan 11 is connected to a filter device 13, the filter device 13 is a structure in which multiple layers of filter cloth are disposed in a cylindrical housing, a purified gas outlet pipe 14 is disposed at the bottom of the filter device 13, the filter device 13 is connected to a transfer pipeline through the purified gas outlet pipe 14, the filter device 13 and the fan 11 are both fixedly disposed on a base 16 through a fixing frame 15, and the gas purification tool 1 is fixedly mounted on a working platform through the base 16;

an oxygen-enriched outlet pipe 42 and a nitrogen outlet pipe 41 are arranged on the membrane separation device 4, the nitrogen outlet pipe 41 is used for discharging the separated mixed gas mainly containing nitrogen, the oxygen-enriched outlet pipe 42 is connected with a booster pump 43, the booster pump 43 boosts the oxygen-enriched air and then inputs the oxygen-enriched air into the heat exchanger 5, a first detection device 54 is arranged on the oxygen-enriched outlet pipe 42, the first detection device 54 is used for detecting the temperature and the pressure of the compressed gas input into the heat exchanger, the heat exchanger 5 is connected with one end of a compressed gas outlet pipe 53, the other end of the compressed gas outlet pipe 53 is connected with one end of a thin caliber of a funnel pipe 56, one end of the thick caliber of the funnel pipe 56 is connected with one end of a tail pipe 51, a second detection device 55 is arranged on the compressed gas outlet pipe 53, and the;

the detection pipe 8 comprises a main pipe 81, one end of the main pipe 81 connected with the tail pipe 51 is provided with a first valve 82, the other end of the main pipe 81 is connected with an air outlet pipe of the fan 9, the main pipe 81 is connected with an exhaust detection pipe 85, and a dew point detector 83 and a second valve 84 are arranged on the exhaust detection pipe 85;

preferably, the main pipe 81 is arranged vertically to the air outlet pipe of the fan 9,

an air outlet pipe of the fan 9 is connected with the transfer pipeline 2, and a valve is arranged on the air outlet pipe of the fan 9;

the gas detection device also comprises a control module 7, wherein the control module 7 is used for acquiring a temperature value and a pressure value detected by the first detection device 54, a temperature value and a pressure value detected by the second detection device 55, a dew point value detected by the dew point detector 83 and an outlet pressure value of the air compressor 3 detected by the pressure transmitter 31, and controlling the detection device according to detected data;

the gas detection device also comprises a human-computer interaction module 6, wherein the human-computer interaction module 6 is used for receiving the data processed by the control module 6 and expressing the processed data in the form of a chart and a numerical value;

a working method of a gas detection device for an oxygen generation system comprises the following steps:

closing a valve between a purified air outlet pipe 14 interface on the transfer pipeline 2 and an air outlet pipe interface of the fan 9, extracting air by the purified air tool 1, filtering the air by the filtering device 13 to remove particles in the air, and inputting the filtered air into the air compressor 3 through a pipeline;

the air compressor 3 compresses air to remove water and then inputs the air into the membrane separation device 4, the membrane separation device 4 separates the compressed air to obtain oxygen-enriched compressed air and compressed mixed gas mainly containing nitrogen, wherein the oxygen-enriched compressed air is transmitted into the heat exchanger 5 through the oxygen-enriched outlet pipe 42 and the mixed gas mainly containing nitrogen is discharged, and the heat exchanger 5 exchanges heat and cools the oxygen-enriched compressed air and then outputs the oxygen-enriched compressed air through the tail pipe 51;

opening the first valve 82 every set time T, allowing part of the oxygen-enriched compressed air to enter the detection pipe 8, closing the first valve 82 after a preset time T2, then closing a valve arranged on an air outlet pipe of the fan 9, and detecting the dew point and the temperature of the oxygen-enriched compressed air passing through the exhaust detection pipe 85;

closing the first valve 82, opening a valve arranged on an air outlet pipe of the fan 9, opening the fan 9, and closing the second valve 84, the fan and the valve arranged on the air outlet pipe of the fan 9 after a preset time T1; in this in-process, through with the oxygen boosting compressed gas input detection pipe 8 in, detect the oxygen boosting compressed gas in the detection pipe 8 again, because the oxygen boosting compressed gas in the detection pipe 8 is in the non-flow state, can promote the stability of detected value, after the detection, the negative pressure that rethread fan work produced clears up detection pipe 8, and the oxygen boosting compressed gas wherein is clear, the convenient going on that detects next time.

The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.