CN217032941U - Buffer sealing test bed - Google Patents
Buffer sealing test bed Download PDFInfo
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- CN217032941U CN217032941U CN202220933162.0U CN202220933162U CN217032941U CN 217032941 U CN217032941 U CN 217032941U CN 202220933162 U CN202220933162 U CN 202220933162U CN 217032941 U CN217032941 U CN 217032941U
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Abstract
The utility model discloses a buffer sealing test bed which comprises an air supply unit, a pressure dividing unit, a regulation and control monitoring unit and a pipeline, wherein the air supply unit is connected with the pressure dividing unit through the pipeline; the air supply unit comprises an air source, a copper ball valve and a pressure regulating valve, and the pressure dividing unit comprises a buffer pressure stabilizing tank, a throttle valve and a first precision pressure gauge; the regulation and control monitoring unit comprises two regulation and control monitoring pipeline units, one ends of the two regulation and control monitoring pipeline units are connected with the throttling valve of the partial pressure unit, the other end of one regulation and control monitoring pipeline unit is connected with the air cavity of the diaphragm type pressure container, and the other end of the other regulation and control monitoring pipeline unit is connected with the liquid cavity of the diaphragm type pressure container. The utility model can ensure the balance of gas flow in the test process, can well control the gas flow, can be used for the test of various pressure container products, and has convenient operation.
Description
Technical Field
The utility model belongs to the technical field of auxiliary test equipment for aerospace, and particularly relates to a buffer sealing test bed for assisting a diaphragm pressure container of an aerospace power system to smoothly complete an air tightness test.
Background
The aerospace power system is internally provided with a diaphragm pressure container, the diaphragm pressure container comprises an air cavity, a liquid cavity and a diaphragm, and the air cavity and the liquid cavity are separated by the diaphragm; during the air tightness test of the diaphragm pressure container product in the power system, the pressure balance between the air cavity and the liquid cavity in the whole test process can be ensured only by controlling the air flow. The air tightness test is a test which is necessary to be carried out on each pressure container product, and the sealing performance of each connection part of the diaphragm type pressure container product in the power system can be effectively verified through the air tightness test.
The diaphragm class pressure vessel product is inside to divide into two cavities through the diaphragm, and at gas tightness test's in-process, along with the pressure escalation of air cavity and sap cavity, lead to the gas velocity of flow to slow down, the testing process is difficult to the flow of accuse gas, because sap cavity and air cavity volume are not of uniform size, easily produces the pressure differential, causes two cavity pressure unbalance, leads to inside diaphragm upset, causes the pressure vessel product to scrap, not only can not accomplish the experiment smoothly but also caused the loss. Therefore, at present, a buffer sealing test bed for assisting a diaphragm type pressure container of an aerospace power system to successfully complete an air tightness test is needed to be developed.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model makes up the defects of the prior art and provides the buffer sealing test bed for assisting the diaphragm pressure vessel of the aerospace power system to successfully complete the air tightness test.
In order to achieve the purpose, the utility model adopts the following technical scheme.
The utility model relates to a buffer sealing test bed which comprises an air supply unit, a pressure dividing unit, a regulation and control monitoring unit and a pipeline, wherein the air supply unit is connected with the pressure dividing unit through the pipeline; the gas supply unit comprises a gas source, a copper ball valve and a pressure regulating valve, wherein a gas outlet port of the gas source is connected with one end of the copper ball valve through a pipeline, the other end of the copper ball valve is connected with one end of the pressure regulating valve through a pipeline, and the other end of the pressure regulating valve is connected with the pressure dividing unit through a pipeline; the pressure dividing unit comprises a buffer pressure stabilizing tank, a throttle valve and a first precision pressure gauge, wherein an air inlet port of the buffer pressure stabilizing tank is connected with a pressure regulating valve of the air supply unit through a pipeline, an air outlet port of the buffer pressure stabilizing tank is connected with the throttle valve through a pipeline, the throttle valve is connected with the regulation and control monitoring unit through a pipeline, and the first precision pressure gauge is connected on the pipeline between the throttle valve and the regulation and control monitoring unit; the regulation and control monitoring unit comprises two regulation and control monitoring pipeline units, one ends of the two regulation and control monitoring pipeline units are connected with the throttling valve of the partial pressure unit, the other end of one regulation and control monitoring pipeline unit is connected with the air cavity of the diaphragm type pressure container, and the other end of the other regulation and control monitoring pipeline unit is connected with the liquid cavity of the diaphragm type pressure container.
As a preferred scheme of the present invention, one of the regulation and monitoring pipeline units of the regulation and monitoring unit includes a first stop valve, a second flow sensor, and a second precision pressure gauge, and the other of the regulation and monitoring pipeline units of the regulation and monitoring unit includes a second stop valve, a third flow sensor, and a third precision pressure gauge; one end of the first stop valve and one end of the second stop valve are both connected with a throttling valve of the pressure dividing unit through pipelines, the other end of the first stop valve is connected with an air cavity of the diaphragm pressure container through a pipeline, and the other end of the second stop valve is connected with a liquid cavity of the diaphragm pressure container through a pipeline.
Furthermore, the second flow sensor and the second precision pressure gauge are connected to a pipeline between the first stop valve and the air cavity of the diaphragm type pressure container, and the third flow sensor and the third precision pressure gauge are connected to a pipeline between the second stop valve and the liquid cavity of the diaphragm type pressure container.
In another preferred embodiment of the present invention, a first flow sensor is connected to a pipe between the copper ball valve and the pressure regulating valve.
As another preferable scheme of the utility model, a high-pressure gauge is connected to a pipeline between the pressure regulating valve and the buffer pressure stabilizing tank.
The utility model has the beneficial effects that:
the buffer sealing test bed provided by the utility model is communicated with the liquid cavity and the air cavity of the diaphragm pressure container of the power system through the matching of the buffer pressure stabilizing tank of the pressure dividing unit and the regulation and control monitoring unit, so that the test gas can have good buffer and pressure dividing effects before entering the liquid cavity and the air cavity of the diaphragm pressure container, the problem of pressure difference caused by different volumes of the liquid cavity and the air cavity can be avoided, the balance of gas flow in the test process can be ensured, and the gas flow can be well controlled.
The buffer sealing test bed has the advantages of accurate gas flow control, balanced test pressure control, accurate control of the test process, good test stability and high reliability, can be used for testing various pressure container products, and is convenient to operate.
Drawings
Fig. 1 is a schematic structural diagram of a buffer seal test bed according to the present invention.
The mark in the figure is: the device comprises a gas supply unit 1, a partial pressure unit 2, a regulation and monitoring unit 3, a pipeline 4, an air cavity 5, a diaphragm 6, a diaphragm-type pressure container 7 and a liquid cavity 8, wherein the gas supply unit, the partial pressure unit, the regulation and monitoring unit 3 are respectively arranged in the gas supply unit, the diaphragm-type pressure container 7 and the liquid cavity; 101 is an air source, 102 is a copper ball valve, 103 is a first flow sensor, and 104 is a pressure regulating valve; 201 is a high-pressure gauge, 202 is a buffer pressure-stabilizing tank, 203 is a throttle valve, and 204 is a first precision pressure gauge; reference numeral 301 denotes a second shutoff valve, 302 denotes a third flow sensor, 303 denotes a third precision pressure gauge, 304 denotes a first shutoff valve, 305 denotes a second flow sensor, and 306 denotes a second precision pressure gauge.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
The diaphragm type pressure container 7 comprises an air cavity 5, a liquid cavity 8 and a diaphragm 6, wherein the air cavity 5 and the liquid cavity 8 are separated by the diaphragm 6; in order to ensure the reliability and stability of the diaphragm pressure container 7 of the power system in the test process, the air tightness test of the diaphragm pressure container 7 can be smoothly completed; a cushioning seal test stand of the present invention is designed and the following examples are given.
The utility model discloses a buffer sealing test bed which is shown by combining a figure 1 and comprises an air supply unit 1, a partial pressure unit 2, a regulation and control monitoring unit 3 and a pipeline 4, wherein the air supply unit 1 is connected with the partial pressure unit 2 through the pipeline 4, the partial pressure unit 2 is connected with the regulation and control monitoring unit 3 through the pipeline 4, and the regulation and control monitoring unit 3 is connected with a diaphragm type pressure container 7.
The gas supply unit 1 comprises a gas source 101, a copper ball valve 102 and a pressure regulating valve 104, wherein a gas outlet port of the gas source 101 is connected with one end of the copper ball valve 102 through a pipeline 4, the other end of the copper ball valve 102 is connected with one end of the pressure regulating valve 104 through a pipeline 4, and the other end of the pressure regulating valve 104 is connected with the pressure dividing unit 2 through a pipeline 4; controlling the air outlet of the air source through the copper ball valve 102, opening the copper ball valve 102, supplying air to the diaphragm type pressure container 7, and starting a test; the copper ball valve 102 is closed, and the gas supply to the diaphragm type pressure container 7 is stopped. The pressure regulating valve can control the gas flow output by the gas source 101, the pipeline 4 between the copper ball valve 102 and the pressure regulating valve 104 is connected with a first flow sensor 103, and the first flow sensor 103 can constantly monitor the gas flow output by the gas source 101.
The pressure dividing unit 2 comprises a buffer pressure stabilizing tank 202, a throttle valve 203 and a first precision pressure gauge 204, wherein an air inlet port of the buffer pressure stabilizing tank 202 is connected with a pressure regulating valve 104 of the air supply unit 1 through a pipeline 4, an air outlet port of the buffer pressure stabilizing tank 202 is connected with the throttle valve 203 through a pipeline 4, the throttle valve 203 is connected with the regulation and control monitoring unit 3 through a pipeline 4, and the first precision pressure gauge 204 is connected on the pipeline 4 between the throttle valve 203 and the regulation and control monitoring unit 3; the buffer pressure-stabilizing tank 202 can play a good role in buffering and pressure division, can ensure the balance of gas flow in the test process, and can well control the gas flow rate and further control the gas flow rate and pressure of the gas cavity 5 and the liquid cavity 8 entering the membrane pressure container 7 by matching with the throttle valve 203. The first precision pressure gauge 204 is used for displaying the pressure value of the gas entering the regulation and control monitoring unit 3 in real time; the pipeline 4 between the pressure regulating valve 104 and the buffer pressure stabilizing tank 202 is connected with a high-pressure gauge 201 for displaying the pressure value of the gas entering the buffer pressure stabilizing tank 202 in real time.
The regulation and control monitoring unit 3 comprises two regulation and control monitoring pipeline units, one end of each of the two regulation and control monitoring pipeline units is connected with the throttle valve 203 of the pressure dividing unit 2, the other end of one regulation and control monitoring pipeline unit is connected with the air cavity 5 of the diaphragm type pressure container 7, and the other end of the other regulation and control monitoring pipeline unit is connected with the liquid cavity 8 of the diaphragm type pressure container 7; one regulation and monitoring pipeline unit of the regulation and monitoring unit 3 comprises a first stop valve 304, a second flow sensor 305 and a second precision pressure gauge 306, and the other regulation and monitoring pipeline unit of the regulation and monitoring unit 3 comprises a second stop valve 301, a third flow sensor 302 and a third precision pressure gauge 303; one end of the first stop valve 304 and one end of the second stop valve 301 are both connected with the throttle valve 203 of the pressure dividing unit 2 through a pipeline 4, the other end of the first stop valve 304 is connected with the air cavity 5 of the diaphragm pressure container 7 through a pipeline 4, and the other end of the second stop valve 301 is connected with the liquid cavity 8 of the diaphragm pressure container 7 through a pipeline 4. The second flow sensor 305 and the second precision pressure gauge 306 are connected to the pipe 4 between the first stop valve 304 and the air chamber 5 of the diaphragm-type pressure container 7, and the third flow sensor 302 and the third precision pressure gauge 303 are connected to the pipe 4 between the second stop valve 301 and the liquid chamber 8 of the diaphragm-type pressure container 7.
Specifically, the first stop valve 304 and the second stop valve 301 play an important role in the aerospace field as one of the most important stop valves; as an important element of aerospace equipment, the stop valve realizes the regulation and control functions of medium conveying, stopping, adjusting and the like. The second flow sensor 305 and the second precision pressure gauge 306 are used for monitoring the gas flow and the pressure value entering the gas cavity 5 of the diaphragm type pressure container 7 in real time, and the third flow sensor 302 and the third precision pressure gauge 303 are used for monitoring the gas flow and the pressure value entering the liquid cavity 8 of the diaphragm type pressure container 7 in real time.
The end parts of two regulation and control monitoring pipeline units of the buffer sealing test bed are in sealed connection with the air cavity 5 and the liquid cavity 8 of the diaphragm pressure container 7, the copper ball valve 102 is opened, the air source 101 outputs air, the test air enters the buffer pressure stabilizing tank 202 through the pressure regulating valve 104, the air respectively enters the liquid cavity 8 and the air cavity 5 of the diaphragm pressure container 7 after passing through the buffer pressure stabilizing tank 202, and the third precision pressure gauge 303 at the end of the liquid cavity 8 and the second precision pressure gauge 306 at the end of the air cavity 5 monitor whether the pressures of the two cavities are balanced or not at all times. Because the liquid chamber 8 and the air cavity 5 of buffering surge tank 202 and diaphragm class pressure vessel 7 all communicate, test gas can have a good buffering, partial pressure effect before getting into diaphragm class pressure vessel 7's liquid chamber 8 and air cavity 5 for the problem of easily producing the pressure differential because of liquid chamber 8 and 5 volume differences in air cavity can not appear, can guarantee the equilibrium of gas flow among the test process, can be well to accuse gas flow.
The test bench with the buffer surge tank 202 form is different from conventional air tightness test equipment. During the airtightness test, the gas output flow can be monitored by the first flow sensor 103, the second flow sensor 305 and the third flow sensor 302 at any moment; the buffer pressure stabilizing tank 202 is communicated with the liquid cavity 8 and the air cavity 5 of the membrane pressure container 7, plays a role in buffering and pressure dividing in the test process, ensures that the liquid cavity 8 and the air cavity 5 of the membrane pressure container 7 are balanced in pressure, and monitors the two-cavity pressure of the membrane pressure container 7 by the second precision pressure gauge 306 and the third precision pressure gauge 303 at the tail end of the pipeline 4, thereby playing a good and effective role in monitoring the air tightness test process.
It should be understood that the detailed description and specific examples, while indicating preferred embodiments of the utility model, are given by way of illustration only, not limitation, and it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the utility model; as long as the use requirements are met, the method is within the protection scope of the utility model.
Claims (5)
1. The utility model provides a buffering seal test bench which characterized in that: the device comprises an air supply unit, a pressure dividing unit, a regulation and monitoring unit and a pipeline, wherein the air supply unit is connected with the pressure dividing unit through the pipeline; the gas supply unit comprises a gas source, a copper ball valve and a pressure regulating valve, wherein a gas outlet port of the gas source is connected with one end of the copper ball valve through a pipeline, the other end of the copper ball valve is connected with one end of the pressure regulating valve through a pipeline, and the other end of the pressure regulating valve is connected with the pressure dividing unit through a pipeline; the pressure dividing unit comprises a buffer pressure stabilizing tank, a throttle valve and a first precision pressure gauge, wherein an air inlet port of the buffer pressure stabilizing tank is connected with a pressure regulating valve of the air supply unit through a pipeline, an air outlet port of the buffer pressure stabilizing tank is connected with the throttle valve through a pipeline, the throttle valve is connected with the regulation and control monitoring unit through a pipeline, and the first precision pressure gauge is connected on the pipeline between the throttle valve and the regulation and control monitoring unit; the regulation and control monitoring unit comprises two regulation and control monitoring pipeline units, one ends of the two regulation and control monitoring pipeline units are connected with the throttling valve of the partial pressure unit, the other end of one regulation and control monitoring pipeline unit is connected with the air cavity of the diaphragm type pressure container, and the other end of the other regulation and control monitoring pipeline unit is connected with the liquid cavity of the diaphragm type pressure container.
2. A cushioning seal test stand according to claim 1, wherein: one regulation and monitoring pipeline unit of the regulation and monitoring unit comprises a first stop valve, a second flow sensor and a second precision pressure gauge, and the other regulation and monitoring pipeline unit of the regulation and monitoring unit comprises a second stop valve, a third flow sensor and a third precision pressure gauge; one end of the first stop valve and one end of the second stop valve are both connected with a throttling valve of the pressure dividing unit through pipelines, the other end of the first stop valve is connected with an air cavity of the diaphragm pressure container through a pipeline, and the other end of the second stop valve is connected with a liquid cavity of the diaphragm pressure container through a pipeline.
3. The cushioning seal test stand of claim 2, wherein: the second flow sensor and the second precision pressure gauge are connected to a pipeline between the first stop valve and the air cavity of the diaphragm pressure container, and the third flow sensor and the third precision pressure gauge are connected to a pipeline between the second stop valve and the liquid cavity of the diaphragm pressure container.
4. The cushioning seal test stand of claim 1, wherein: and a first flow sensor is connected on a pipeline between the copper ball valve and the pressure regulating valve.
5. The cushioning seal test stand of claim 1, wherein: and a high-pressure gauge is connected on a pipeline between the pressure regulating valve and the buffer pressure stabilizing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220933162.0U CN217032941U (en) | 2022-04-22 | 2022-04-22 | Buffer sealing test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220933162.0U CN217032941U (en) | 2022-04-22 | 2022-04-22 | Buffer sealing test bed |
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| Publication Number | Publication Date |
|---|---|
| CN217032941U true CN217032941U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220933162.0U Active CN217032941U (en) | 2022-04-22 | 2022-04-22 | Buffer sealing test bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217032941U (en) |
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2022
- 2022-04-22 CN CN202220933162.0U patent/CN217032941U/en active Active
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