阅读说明：本技术 一种蓄能式管路自动冲洗装置及方法 (Energy storage type automatic pipeline flushing device and method ) 是由 王志军 钱冬林 徐丽云 魏金辉 于 2020-06-30 设计创作，主要内容包括：本发明涉管路冲洗技术领域,且公开了一种蓄能式管路自动冲洗装置,包括油箱,油泵电机组的吸油端从油箱内部吸油；蓄能器组与油泵电机组连通,蓄能器组连接被冲洗管路；控制组件,控制组件包括安装在油泵电机组上的电磁阀、安装在蓄能器组的出油口上的电磁阀、以及压力传感器,所述控制器连接有所述传感器和所述电磁阀。本发明利用蓄能器组来取代大功率油泵电机组,可以大幅降低设备投资；利用液压冲击的能量冲洗管路,冲洗效果完全优于传统的循环式冲洗；冲洗过程采用全自动控制,控制组件使本装置蓄能器组蓄能以及释放冲击能量形成一个自动的循环,减轻人员操作劳动强度。(The invention relates to the technical field of pipeline flushing, and discloses an energy storage type automatic pipeline flushing device which comprises an oil tank, wherein an oil suction end of an oil pump motor set sucks oil from the inside of the oil tank; the accumulator group is communicated with the oil pump motor group and is connected with a flushed pipeline; the control assembly comprises an electromagnetic valve installed on an oil pump motor set, an electromagnetic valve installed on an oil outlet of the energy accumulator set and a pressure sensor, and the controller is connected with the sensor and the electromagnetic valve. The invention replaces a high-power oil pump motor set with an energy accumulator set, thereby greatly reducing the equipment investment; the pipeline is flushed by utilizing the energy of hydraulic impact, and the flushing effect is completely superior to that of the traditional circulating flushing; the flushing process adopts full-automatic control, and the control assembly enables the energy accumulator group of the device to accumulate energy and release impact energy to form an automatic cycle, so that the labor intensity of personnel operation is reduced.)

1. An energy storage type automatic pipeline flushing device is characterized by comprising:

the oil tank (1), the upper portion of the said oil tank (1) sets up the air filter (13);

the oil suction end of the oil pump motor set (2) is communicated with the inside of the oil tank (1) from the bottom of the oil tank (1);

one end of the energy accumulator group (3) is communicated with the oil supply end of the oil pump motor group (2), and the oil outlet of the energy accumulator group (3) is connected with a flushed pipeline (7);

the oil pump control system comprises a control assembly (4), wherein the control assembly (4) comprises an electromagnetic switch valve (21) arranged on an oil pump motor set (2), a switch valve (41) arranged on an oil outlet of an energy accumulator set (3), and a pressure sensor (32) arranged between the switch valve (41) and the oil outlet, a signal transmitter is arranged in the pressure sensor (32), and the controller is connected with the electromagnetic switch valve (21) and the switch valve (41).

2. The energy-accumulating automatic pipeline flushing device as claimed in claim 1, wherein: the energy accumulator group (3) comprises a plurality of bag-type energy accumulators (34), the bag-type energy accumulators (34) are connected in parallel, and nitrogen with certain pressure is filled in each bag-type energy accumulator (34);

further, the bag type energy accumulator (34) comprises an elastic rubber bag (35) and a hard shell (36) wrapped on the elastic rubber bag (35), and a buffer space is reserved between the hard shell (36) and the elastic rubber bag (35).

3. The energy-accumulating automatic pipeline flushing device as claimed in claim 1, wherein: the oil tank (1) is provided with a liquid level meter (14), a heater (12) and an air filter (13).

4. The energy-storage type pipeline automatic flushing device according to claim 1, characterized in that an oil outlet of the switch valve (41) is communicated with a flushed pipeline (7) through a throttle valve (6), the throttle valve (6) is connected with a particulate matter detector (5) in parallel, one end of the particulate matter detector (5) is communicated with an oil inlet pipe of the throttle valve (6), and the other end of the particulate matter detector (5) is communicated with an oil outlet pipe of the throttle valve (6).

5. The energy-accumulating automatic pipeline flushing device as claimed in claim 1, wherein: the other end of the flushed pipeline (7) is connected with an oil return filter (9),

the oil return filter (9) is communicated with the inside of the oil tank (1),

the oil return filter (9) comprises a filter element and a differential pressure signal transmitter (92) arranged on the oil return filter (9).

6. The accumulating type automatic flushing device for pipelines of claim 5, which is characterized in that: a pressure buffer (8) is arranged between the flushed pipeline (7) and the oil return filter (9),

one end of the pressure buffer (8) is communicated with the flushed pipeline (7), and the other end of the pressure buffer (8) is communicated with the oil return filter (9).

7. An energy-storage type automatic pipeline flushing method is characterized in that the energy-storage type automatic pipeline flushing device according to claim 1 is adopted, and the method comprises the following steps:

step 1: the oil pump motor group (2) works to flush the hydraulic oil in the oil tank (1) into the energy accumulator group (3), the energy is stored in the energy accumulator group (3), the pressure in the energy accumulator group (3) is gradually increased,

step 2: when the pressure reaches the set value of the pressure sensor (32), the pressure sensor (32) sends a signal to the controller, the controller controls the electromagnetic switch valve (21) to stop the oil pump motor set (2), and meanwhile the controller controls the electromagnetic switch valve (41) to be opened;

and step 3: hydraulic oil in the energy accumulator group (3) is flushed into the flushed pipeline (7) by pressure, and the hydraulic oil carries away impurities remaining in the pipeline in the flushed pipeline (7);

and 4, step 4: when hydraulic oil in the energy accumulator group (3) is flushed into the flushed pipeline (7) by pressure, the pressure in the energy accumulator group (3) is gradually reduced, when the pressure in the energy accumulator group (3) is reduced to a value required to be set, the pressure sensor (32) sends a signal to the controller, the controller controls the electromagnetic switch valve (21) to enable the oil pump motor group (2) to start to work, meanwhile, the controller controls the electromagnetic switch valve (41) to be closed, and a circulation is formed by the step 2 and the step 3.

8. The method for automatically flushing an energy-storing pipeline as claimed in claim 7, wherein: heating the hydraulic oil stored in the oil tank (1) before the oil pump motor set (2) in the step 1 works.

9. The method for automatically flushing an energy-storing pipeline as claimed in claim 7, wherein: and (3) filtering impurities of the hydraulic oil discharged from the flushing pipeline (7) in the step (3) through an oil return filter (9), and returning the filtered hydraulic oil into the oil tank (1) again.

10. The method for automatically flushing an energy-storing pipeline as claimed in claim 9, wherein: after the impurities in the flushed pipeline (7) are flushed by the hydraulic oil, the impact force of the hydraulic oil is buffered before filtering, so that the impact energy of the hydraulic oil is released.

Technical Field

The invention relates to the technical field of pipeline flushing, in particular to an energy storage type automatic pipeline flushing device and method.

Background

The method is characterized in that the oil is used for circularly flushing the pipeline of the hydraulic system before formal installation, and the circularly flushing of the pipeline is an important link in pipeline construction and needs to be carried out in a short time after the pipeline is subjected to acid cleaning and secondary installation. The cleaning device aims to clean mechanical impurities or other particles left in the pickling and welding installation process of the pipe and the manufacturing process of the hydraulic element, achieve the required cleanliness of the hydraulic system during normal operation, ensure the reliable operation of main machine equipment and prolong the service life of the hydraulic element in the system.

In order to improve the flushing effect, the oil flow in the pipeline is ensured to be in a turbulent state when the system is flushed, and the flow velocity of the oil flow in the pipeline is above 3 m/s. For the pipeline with the common drift diameter of DN50, the conventional flushing pump station can meet the requirement of flow rate. However, for pipelines with the drift diameter of DN50 or above, such as a steel pipe of DN100, the flushing flow rate is guaranteed to be more than 3m/s according to calculation, and the flow of the flushing pump station is required to be more than 1840L/MIN. Accordingly, the discharge capacity of the flushing pump is 1268ml/r, and the power of the motor is more than 100 kilowatts. It can be seen that the investment required to meet this requirement is considerable, the space occupied by the entire set of flushing equipment is also large, and the load impact on the power grid from the start-up of a high-power motor is also large.

In view of the above, there is a need for further improvement of an energy-storage type automatic pipeline flushing device to solve the above-mentioned problems in the prior art.

Disclosure of Invention

The invention aims to provide an energy storage type automatic pipeline flushing device and method, which can greatly reduce equipment investment, save occupied space and reduce power requirements by utilizing an energy accumulator to replace an oil pump motor set.

In order to achieve the purpose, the invention adopts the main technical scheme that:

an energy-accumulating automatic pipeline flushing device comprises: the upper part of the oil tank is provided with an air inlet; the oil suction end of the oil pump motor set is communicated with the inside of the oil tank from the bottom of the oil tank; one end of the accumulator group is communicated with the oil supply end of the oil pump motor group, and an oil outlet of the accumulator group is connected with a flushed pipeline; the control assembly comprises an electromagnetic switch valve arranged on the oil pump motor set, an electromagnetic switch valve arranged on an oil outlet of the energy accumulator set, and a pressure sensor arranged on the electromagnetic switch valve and the energy accumulator set, wherein a signal transmitter is arranged in the pressure sensor, and the controller is connected with the electronic switch and the electronic valve.

Preferably, the energy accumulator group comprises a plurality of bag-type energy accumulators, the bag-type energy accumulators are connected in parallel, and nitrogen with certain pressure is filled in each bag-type energy accumulator;

furthermore, the bag type energy accumulator comprises an elastic rubber bag and a hard shell wrapped on the elastic rubber bag, and a buffer space is reserved between the hard shell and the elastic rubber bag.

Preferably, the oil tank is provided with a liquid level meter, a heater and an air filter.

Preferably, the oil outlet of the electromagnetic switch valve is communicated with a flushed pipeline through a throttle valve,

further, the choke valve has particulate matter detector in parallel, particulate matter detector one end with the oil pipe intercommunication of advancing of choke valve, the particulate matter detector other end with the play oil pipe intercommunication of choke valve.

Preferably, the other end of the flushed pipeline is connected with an oil return filter, the oil return filter is communicated with the inside of the oil tank, and the oil return filter comprises a filter element and a pressure difference signal transmitter arranged on the oil return filter.

Preferably, a pressure buffer is arranged between the flushed pipeline and the oil return filter, one end of the pressure buffer is communicated with the flushed pipeline, and the other end of the pressure buffer is communicated with the oil return filter.

The energy storage type automatic pipeline flushing method adopting the energy storage type automatic pipeline flushing device comprises the following steps:

step 1: the oil pump motor group works to flush the hydraulic oil in the oil tank into the energy accumulator group, the energy is stored in the energy accumulator group, the pressure in the energy accumulator group is gradually increased,

step 2: when the pressure reaches a set value of the pressure sensor, the pressure sensor sends a signal to the controller, the controller controls the electronic switch to stop the oil pump motor set, and the controller controls the electronic valve to be opened;

and step 3: hydraulic oil in the accumulator group is flushed into the flushed pipeline by pressure, and impurities in the flushed pipeline are flushed by the hydraulic oil in the flushed pipeline;

and 4, step 4: when the hydraulic oil in the accumulator group is flushed into the flushed pipeline by pressure, the pressure in the accumulator group is gradually reduced, when the pressure in the accumulator group is reduced to a value required to be set, the pressure sensor sends a signal to the controller, the controller controls the electronic switch to enable the oil pump motor group to start working, and meanwhile, the controller controls the electronic valve to be closed, so that a cycle is formed with the step 2 and the step 3.

Preferably, before the oil pump motor set in step 1 works, the hydraulic oil stored in the oil tank is heated.

Preferably, in the step 3, impurities of the hydraulic oil are filtered after the hydraulic oil passes through the flushed pipeline, and the filtered hydraulic oil flows back to the oil tank again.

Preferably, the impact force of the hydraulic oil is buffered after the hydraulic oil passes through the flushed pipeline and before the hydraulic oil is filtered, so that the impact energy of the hydraulic oil is released.

The invention has at least the following beneficial effects:

1. the energy accumulator is used for replacing a high-power oil pump motor set, so that the equipment investment can be greatly reduced, the occupied space is saved, and the power demand is reduced.

2. The pipeline is flushed by utilizing the energy of hydraulic impact, and the flushing effect is completely superior to that of the traditional circulating flushing.

3. The flushing process adopts full-automatic control, and the control assembly enables the energy accumulator group of the device to accumulate energy and release impact energy to form an automatic cycle, so that the labor intensity of personnel operation is reduced.

Drawings

FIG. 1 is a front view of the exterior of an embodiment of the present invention;

FIG. 2 is a top view of the exterior of an embodiment of the present invention;

FIG. 3 is a schematic diagram of an embodiment of the present invention;

fig. 4 is a front sectional view of a bladder accumulator in accordance with an embodiment of the present invention.

[ description of reference ]

In the figure: the device comprises an oil tank 1, an oil pump motor group 2, an energy accumulator group 3, a control assembly 4, a particulate matter detector 5, a throttle valve 6, a flushed pipeline 7, a pressure buffer 8, an oil return filter 9, an air inlet 11, a heater 12, an air filter 13, a liquid level meter 14, an electromagnetic switch valve 21, a pressure sensor 32, a bag type energy accumulator 34, an elastic rubber bag 35, a hard shell 36, an oil discharge hole 37, an electromagnetic switch valve 41 and a differential pressure transmitter 92.

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.

As shown in fig. 1-4, the present invention provides an energy storage type automatic pipeline flushing device, which comprises:

the hydraulic oil storage tank comprises an oil tank 1 for storing hydraulic oil, wherein an air inlet 11 is formed in the upper part of the oil tank 1; the oil suction end of the oil pump motor set 2 is communicated with the inside of the oil tank 1 from the bottom of the oil tank 1; one end of the energy accumulator group 3 is communicated with the oil supply end of the oil pump motor group 2, and the oil outlet of the energy accumulator group 3 is connected with a flushed pipeline 7; the oil pump motor set 2 conveys the hydraulic oil in the oil tank 1 to the energy accumulator set 3, and the hydraulic oil enters the energy accumulator set 3 and stores impact energy; the energy accumulator group 3 comprises five bag type energy accumulators 34, the five bag type energy accumulators 34 are mutually connected in parallel, nitrogen with certain pressure is filled in each bag type energy accumulator 34, the five bag type energy accumulators 34 are used in parallel, impact energy is stored at the same time, the impact energy stored in the energy accumulator 3 can be strengthened,

further, the bag type energy accumulator 34 includes an elastic rubber bag 35 and a hard shell 36 wrapped on the elastic rubber bag 35, a buffer space is reserved between the hard shell 36 and the elastic rubber bag 35, the elastic rubber bag 35 is used for storing impact energy, and the hard shell 36 is used for protecting the elastic rubber bag 35, so that the elastic rubber bag 35 cannot be exploded and damaged due to too much hydraulic oil;

the control assembly 4, the control assembly 4 is including installing the electromagnetic switch valve 21 on the oil pump motor group 2, installing the electromagnetic switch valve 41 on the oil-out of energy storage ware group 3 and installing pressure sensor 32 between 34 oil-out of bag formula energy storage ware, be provided with the signal generator in the pressure sensor 32, the controller is connected with electromagnetic switch valve 21 and electromagnetic switch valve 41, control assembly 4 makes this device automatic use, saves the cost of labor.

In this embodiment, as shown in fig. 1-4, the oil tank 1 is provided with a liquid level meter 14, a heater 12 and an empty filter 13, the empty filter 13 filters impurities in air, so as to ensure cleanness and tidiness of the oil tank 1, and further ensure cleanness and tidiness of hydraulic oil, the heater 12 heats hydraulic oil to enhance the flushing effect, the liquid level meter 14 is convenient to observe the loss degree of the hydraulic oil in the oil tank 1, and timely supplement of the hydraulic oil is facilitated.

In the embodiment, as shown in fig. 3, the oil outlet of the electromagnetic switch valve 41 is communicated with the flushed pipeline 7 through the throttle valve 6, the flow rate of the flushed pipeline 7 output by the accumulator group 3 is adjusted through adjusting the throttle valve 6 according to the flushed pipelines 7 with different pipe diameters, so that the device can adapt to different flushed pipelines 7,

further, 6 parallelly connected particulate matter detectors 5 of choke valve 6, particulate matter detectors 5 one end and 6 advance oil pipe intercommunication of choke valve, the 5 other ends of particulate matter detectors and 6 play oil pipe intercommunication of choke valve, when having fluid to pass through in choke valve 6, a small part fluid can get into particulate matter detectors 5, and what the particulate matter in the detectable hydraulic oil, operating personnel judge whether hydraulic oil reaches the requirement.

In this embodiment, as shown in fig. 3, the other end of the pipeline 7 to be flushed is connected with the oil return filter 9, the oil return filter 9 is communicated with the inside of the oil tank 1, the oil return filter 9 comprises a filter element and a differential pressure transmitter 92 arranged on the oil return filter 9, a pressure buffer 8 is arranged between the pipeline 7 to be flushed and the oil return filter 9, one end of the pressure buffer 8 is communicated with the pipeline 7 to be flushed, the other end of the pressure buffer 8 is communicated with the oil return filter 9,

the fluid process of pressure buffer 8 with the output of energy storage ware group 3 is behind by washing pipeline 7, rethread pressure buffer 8 internal damping will strike energy release after, get into return oil filter 9, prevent that hydraulic shock from damaging the return oil and filter 9, return oil filter 9 internally mounted has accurate filter core, will be washed the welding slag in the pipeline 7, impurity such as iron fillings are stored to the filter core in, then hydraulic oil gets into 1 reuse of oil tank once more, save the cost, and do not need artifical filtration hydraulic oil, save the cost of labor, when oil filter 9 blocks up the certain degree, the pressure differential signaling apparatus 92 on the return oil filter 9 reports to the police, remind operating personnel more to change new filter core, make this device more intelligent, it is automatic, save the cost of labor.

As shown in fig. 1-4, an energy storage type automatic pipeline flushing method using the above energy storage type automatic pipeline flushing device includes the following steps:

step 1: the oil pump motor group 2 works to flush the hydraulic oil in the oil tank 1 into the energy accumulator group 3, the energy is stored in the energy accumulator group 3, the pressure in the energy accumulator group 3 is gradually increased,

step 2: when the pressure reaches the set value of the pressure sensor 32, the pressure sensor 32 sends a signal to the controller, the controller controls the electromagnetic switch valve 21 to stop the oil pump motor set 2, and the controller controls the electromagnetic switch valve 41 to be opened;

and step 3: the hydraulic oil in the accumulator group 3 is flushed into the flushed pipeline 7 by pressure, and the hydraulic oil flushes impurities in the flushed pipeline 7;

and 4, step 4: when the hydraulic oil in the accumulator group 3 is flushed into the flushed pipeline 7 by pressure, the pressure in the accumulator group 3 is gradually reduced, when the pressure in the accumulator group 3 is reduced to a required value, the pressure sensor 32 sends a signal to the controller, the controller controls the electromagnetic switch valve 21 to enable the oil pump motor group 2 to start working, and simultaneously the controller controls the electromagnetic switch valve 41 to close, so that a cycle is formed with the step 2 and the step 3.

In this embodiment, before the oil pump motor group 2 in step 1 is operated, the hydraulic oil stored in the oil tank 1 is heated.

In this embodiment, the hydraulic oil in step 3 is filtered after flushing the impurities in the flushed pipeline 7, and the filtered hydraulic oil flows back to the oil tank 1 again.

In this embodiment, after the hydraulic oil washes the impurities in the washed pipeline 7, the impact force of the hydraulic oil is buffered before filtering, so as to release the impact energy of the hydraulic oil.

In summary, the following steps:

the oil pump motor group 2 conveys the hydraulic oil in the oil tank 1 to the energy accumulator group 3, the hydraulic oil enters the energy accumulator group 3 and simultaneously stores impact energy, five bag type energy accumulators 34 are connected in parallel for use and simultaneously store the impact energy, the impact energy stored in the energy accumulator 3 can be strengthened, the elastic rubber bag 35 is used for storing the impact energy, the hard shell 36 is used for protecting the elastic rubber bag 35, so that the elastic rubber bag 35 cannot be exploded and damaged due to the fact that too much hydraulic oil is filled, the control component 4 enables the device to be used automatically, when the hydraulic oil in the energy accumulator group 3 is flushed into the flushed pipeline 7 by pressure, the pressure in the energy accumulator group 3 is gradually reduced, when the pressure in the energy accumulator group 3 is reduced to a value to be set, the pressure sensor 32 sends a signal to the controller, the controller controls the electronic switch 21 to enable the oil pump motor group 2 to start to work, and the controller controls the electronic valve 41 to be closed, a circulation is formed with the step 2 and the step 3, the device is intelligent, automatic and labor cost-saving, the air filter 13 filters impurities in air to ensure the cleanness and tidiness of the oil tank 1, the heater 12 heats hydraulic oil to improve the flushing effect of the hydraulic oil in the flushed pipeline 7, the liquid level meter 14 is arranged to facilitate the observation of the loss degree of the hydraulic oil in the oil tank 1 and the timely supplement of the hydraulic oil, the flow of the flushed pipeline 7 output by the energy accumulator group 3 is adjusted by adjusting the throttle valve 6 according to the flushed pipeline 7 for flushing pipes with different pipe diameters, so that the device can adapt to different flushed pipelines 7, when oil passes through the throttle valve 6, a small part of the oil can enter the particulate matter detector 5 to detect the amount of particulate matters in the hydraulic oil, an operator judges whether the hydraulic oil meets the requirement or not, the pressure buffer 8 enables the oil output by the energy accumulator group 3 to pass through the flushed pipeline 7, the back is released impact energy with the inside damping of rethread pressure buffer 8, get into return oil filter 9, prevent that hydraulic shock from damaging return oil and filter 9, return oil filter 9 internally mounted has accurate filter core, will be washed the welding slag in the pipeline 7, impurity such as iron fillings are stored to the filter core in, then hydraulic oil gets into oil tank 1 reuse once more, the cost is saved, and do not need artifical filtration hydraulic oil, save the cost of labor, when return oil filter 9 blocks up to the certain degree, the last pressure differential signaling apparatus 92 of return oil filter 9 reports to the police, remind operating personnel to change the filter core more new, make this device more intelligent, it is automatic, save the cost of labor.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.