CN211504502U - Gas pressure measuring device - Google Patents
Gas pressure measuring device Download PDFInfo
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- CN211504502U CN211504502U CN202020026944.7U CN202020026944U CN211504502U CN 211504502 U CN211504502 U CN 211504502U CN 202020026944 U CN202020026944 U CN 202020026944U CN 211504502 U CN211504502 U CN 211504502U
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Abstract
The utility model discloses a gas pressure measuring device relates to gas pressure measurement technical field. The device includes measuring component, measuring tube and dewatering component, and measuring tube includes that first measuring tube says and the slope locates the second measuring tube way of first measuring tube way one side, and the one end of first measuring tube says links to each other with measuring component, and the one end of second measuring tube says is connected and communicates with each other with the lateral wall of first measuring tube way, and dewatering component locates the second measuring tube way and keeps away from the one side of first measuring tube way, and dewatering component is used for collecting the water in the first measuring tube way through the drainage of second measuring tube way. The utility model provides a pair of gas pressure measuring device has solved the water column that generates in the test pipeline when the test and has produced the problem that influences to gaseous actual pressure value, has guaranteed the accuracy of test.
Description
Technical Field
The utility model relates to a gas pressure measurement technical field, concretely relates to gas pressure measurement device.
Background
The automobile working state simulation test is a test for reproducing a fault by artificially manufacturing and simulating a working environment and conditions which are the same as or similar to those of an automobile when the automobile fails, and the simulation test method is suitable for judging the fault of the automobile only under a specific state, environment or condition. The general working condition simulation test of the automobile is divided into two types, one is manual simulation, and the other is simulation through a special instrument.
The engine is used as a core component of an automobile, and in the research of a simulated automobile engine, a simulation stand of the engine needs to measure and record the gas pressure in a system in the test stage. There are many methods and ways to measure gas pressure in the prior art, and many methods and ways to measure gas pressure use pressure sensors or liquid level sensors to assist in measuring gas pressure. For example, the gas pressure measuring sensor disclosed in chinese patent CN109764999A comprises a soil pressure isolating sleeve head with air holes at the bottom, a saturation pressure measuring head and a piezoresistive sensor arranged inside the soil pressure isolating sleeve head, wherein during testing, gas is introduced into the soil pressure isolating sleeve head through the air holes, the saturation pressure measuring head senses gas pressure and generates strain, the piezoresistive sensor in contact with the saturation pressure measuring head senses strain and converts the strain into an electric signal, thereby completing the measurement of the gas pressure in the tested object.
Although the measurement method disclosed in CN109764999A can quickly measure the gas pressure of the measured object, in the process of measuring the gas pressure at present, water vapor is sometimes generated in the measurement pipeline, a section of water column is generated after condensation, and when the water column is left in the measurement pipeline, the pressure actually measured by the sensor is the pressure at the top of the water column, rather than the actual pressure of the gas in the measurement pipeline, which causes inaccurate pressure measurement.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a gas pressure measuring device has solved the problem that the water column that generates when testing in the test pipeline produced the influence to gaseous actual pressure value.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a measurement assembly;
the measuring pipeline comprises a first measuring pipeline and a second measuring pipeline obliquely arranged on one side of the first measuring pipeline, one end of the first measuring pipeline is connected with the measuring component, and one end of the second measuring pipeline is connected and communicated with the side wall of the first measuring pipeline;
and the water removal component is arranged on one side, away from the first measuring pipeline, of the second measuring pipeline and is used for collecting water in the first measuring pipeline drained by the second measuring pipeline.
On the basis of the technical scheme, the second measuring pipeline is provided with a one-way valve.
On the basis of the technical scheme, the bottom of the dewatering component is provided with a water drain valve.
On the basis of the technical scheme, the first measuring pipeline and the second measuring pipeline are integrally formed.
On the basis of the technical scheme, an included angle between the first measuring pipeline and the second measuring pipeline is 30-60 degrees.
On the basis of the technical scheme, the distance between the joint of the second measuring pipeline and the first measuring pipeline and the top of the first measuring pipeline is 3-5 mm.
On the basis of the technical scheme, the first measuring pipeline and the second measuring pipeline are both transparent plastic pipelines, and the outer diameters of the first measuring pipeline and the second measuring pipeline are both 6 mm.
On the basis of the technical scheme, the first measuring pipeline and the measuring assembly are fixed through a connecting threaded sleeve.
On the basis of the technical scheme, the inner wall of the connecting threaded sleeve is provided with a sealing ring.
On the basis of the technical scheme, the measuring component is a pressure sensor.
Compared with the prior art, the utility model has the advantages of:
the utility model provides a pair of gas pressure measuring device, the second measurement pipeline of first measurement pipeline one side is located mainly to this device including first measurement pipeline and slope, first measurement pipeline links to each other and mainly used measures the pressure in the gas pipeline with measuring unit, one side that first measurement pipeline was kept away from to the second measurement pipeline is equipped with water removal subassembly, the second measurement pipeline mainly used is with the water drainage in the first measurement pipeline to water removal subassembly in, measurement unsafe problem when avoiding having the water column to stay in first measurement pipeline and causing measured pressure, the better pressure that eliminates the liquid column and produce, the gas pressure measuring's in the pipeline degree of accuracy has been guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a gas pressure measuring device in an embodiment of the present invention.
In the figure: 1-measuring component, 2-measuring pipeline, 20-first measuring pipeline, 21-second measuring pipeline, 3-dewatering component, 4-one-way valve, 5-water discharging valve and 6-connecting threaded sleeve.
Detailed Description
The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, the embodiment of the present invention provides a gas pressure measuring device, including measuring component 1, measuring pipeline 2 and dewatering component 3, wherein, measuring pipeline 2 includes that first measuring pipeline 20 and slope locate the second measuring pipeline 21 of first measuring pipeline 20 one side, the one end of first measuring pipeline 20 links to each other with measuring component 1, the one end of second measuring pipeline 21 is connected and communicates with each other with the lateral wall of first measuring pipeline 20, dewatering component 3 locates the one side that first measuring pipeline 20 was kept away from to second measuring pipeline 21, dewatering component 3 is used for collecting the water in the first measuring pipeline 20 through the drainage of second measuring pipeline 21. Wherein, the water removal component 3 is a transparent water storage bottle.
Specifically, first measuring pipe 20 and second measuring pipe 21 are transparent plastic pipe, are convenient for the external world to the observation of the intraductal condition, and the external diameter of first measuring pipe 20 and second measuring pipe 21 is about 6mm, also can change the external diameter of pipeline according to the measuring condition of reality. From the viewpoint of structural design, the first measuring pipe 20 and the second measuring pipe 21 are integrally formed, so that structural integrity is guaranteed. In addition, the first measuring pipeline 20 and the measuring component 1 are fixed through a connecting threaded sleeve 6, and a sealing ring is arranged on the inner wall of the connecting threaded sleeve 6 to ensure the air tightness of the connecting part.
In particular, the measuring assembly 1 is here a pressure sensor for measuring the gas pressure in the first measuring line 20.
Further, in the measuring process, certain pressure can be exerted on the water column by the gas pressure in the pipeline, the water column is drained into the water storage bottle through the second measuring pipeline 21, and in order to prevent water in the bottle from flowing back into the first measuring pipeline 20 through the second measuring pipeline 21 again, the one-way valve 4 is arranged on the second measuring pipeline 21 and only can be used for supplying water to pass through towards the direction of the water storage bottle.
Further, along with the going on of measurement, the water column is producing constantly, consequently also in gradually measuring pipeline 21 drainage to the storage water bottle through the second, and the capacity of storage water bottle is limited, and after the water in the storage water bottle reached certain volume, the log raft that needs to collect in the storage water bottle discharged, otherwise can influence subsequent drainage, consequently, is equipped with a valve 5 that drains in the bottom of dewatering subassembly 3, can discharge the water in the storage water bottle fast through opening valve 5 that drains, and it is very convenient to operate.
Further, the included angle between the first measuring pipeline 20 and the second measuring pipeline 21 is 30-60 degrees, and a water column in the first measuring pipeline 20 can be smoothly drained into the water storage bottle through a proper angle.
Furthermore, the distance between the joint of the second measuring pipeline 21 and the first measuring pipeline 20 and the top of the first measuring pipeline 20 is 3-5 mm, if the joint is too close to the top of the first measuring pipeline 20, the water column of the first measuring pipeline 20 may not enter the second measuring pipeline 21 under the action of gas pressure due to too high joint, and drainage failure may be caused, and if the joint is too low, a part of the position of the water column itself may be higher than the joint, so that a part of the water column cannot be smoothly drained into the second measuring pipeline 21, and drainage effect may be affected.
The principle of the gas pressure measuring device mainly comprises the following steps:
when measuring, exert certain pressure for the water column that the pipeline formed through the gas pressure in the first measuring pipe way 20, the water column is drained to the water storage bottle in gradually through second measuring pipe way 21, guarantees that the pressure sensor who is located first measuring pipe way 20 top can be comparatively accurate monitor the actual pressure value of gas, guarantees the precision of test. The device can better avoid the problem of inaccurate measurement when water columns are left in the first measuring pipeline 20 to cause pressure measurement, well eliminate the pressure generated by the liquid columns and ensure the accuracy of gas pressure measurement in the pipeline.
The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is within the scope of protection.
Claims (10)
1. A gas pressure measuring device, characterized in that it comprises:
a measuring assembly (1);
the measuring pipeline (2) comprises a first measuring pipeline (20) and a second measuring pipeline (21) obliquely arranged on one side of the first measuring pipeline (20), one end of the first measuring pipeline (20) is connected with the measuring component (1), and one end of the second measuring pipeline (21) is connected and communicated with the side wall of the first measuring pipeline (20);
the water removal assembly (3) is arranged on one side, away from the first measuring pipeline (20), of the second measuring pipeline (21), and the water removal assembly (3) is used for collecting water in the first measuring pipeline (20) drained through the second measuring pipeline (21).
2. A gas pressure measuring device according to claim 1, wherein: and a check valve (4) is arranged on the second measuring pipeline (21).
3. A gas pressure measuring device according to claim 1, wherein: the bottom of the dewatering component (3) is provided with a water drain valve (5).
4. A gas pressure measuring device according to claim 1, wherein: the first measuring pipeline (20) and the second measuring pipeline (21) are integrally formed.
5. A gas pressure measuring device according to claim 1, wherein: the included angle between the first measuring pipeline (20) and the second measuring pipeline (21) is 30-60 degrees.
6. A gas pressure measuring device according to claim 1, wherein: the distance between the joint of the second measuring pipeline (21) and the first measuring pipeline (20) and the top of the first measuring pipeline (20) is 3-5 mm.
7. A gas pressure measuring device according to claim 1, wherein: the first measuring pipeline (20) and the second measuring pipeline (21) are both transparent plastic pipelines, and the outer diameters of the first measuring pipeline (20) and the second measuring pipeline (21) are both 6 mm.
8. A gas pressure measuring device according to claim 1, wherein: the first measuring pipeline (20) and the measuring assembly (1) are fixed through a connecting threaded sleeve (6).
9. A gas pressure measuring device according to claim 8, wherein: and a sealing ring is arranged on the inner wall of the connecting threaded sleeve (6).
10. A gas pressure measuring device according to claim 1, wherein: the measuring component (1) is a pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020026944.7U CN211504502U (en) | 2020-01-07 | 2020-01-07 | Gas pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020026944.7U CN211504502U (en) | 2020-01-07 | 2020-01-07 | Gas pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211504502U true CN211504502U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020026944.7U Active CN211504502U (en) | 2020-01-07 | 2020-01-07 | Gas pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211504502U (en) |
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2020
- 2020-01-07 CN CN202020026944.7U patent/CN211504502U/en active Active
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