CN220454770U - Buffer device of pressure sensor - Google Patents
Buffer device of pressure sensor Download PDFInfo
- Publication number
- CN220454770U CN220454770U CN202321881775.5U CN202321881775U CN220454770U CN 220454770 U CN220454770 U CN 220454770U CN 202321881775 U CN202321881775 U CN 202321881775U CN 220454770 U CN220454770 U CN 220454770U
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- pressure sensor
- buffer
- buffer tube
- communicated
- buffer part
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- 239000004429 Calibre Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 10
- 230000006872 improvement Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to the technical field of pressure detection, and particularly discloses a pressure sensor buffer device which is arranged between a detected pipeline and a pressure sensor and comprises a primary buffer part and a secondary buffer part, wherein the primary buffer part comprises a small-caliber flow passage and a large-caliber flow passage which are mutually communicated, one end of the small-caliber flow passage, which is far away from the large-caliber flow passage, is communicated with the detected pipeline, the secondary buffer part comprises a buffer tube, one end of the buffer tube is communicated with the large-caliber flow passage, and the other end of the buffer tube is used for being communicated with the pressure sensor. The scheme is used for solving the problems of detection precision reduction and service life reduction of the pressure sensor when the pressure sensor is in instantaneous increase in the monitored pipe pressure.
Description
Technical Field
The utility model relates to the technical field of pressure detection, in particular to a pressure sensor buffer device.
Background
In hydraulic systems or general pipeline systems containing fluid transportation, it is often necessary to monitor the pressure of a pipeline or the hydraulic system in real time by using a pressure sensor, the pipeline pressure can change along with the working state of the pipeline or the hydraulic system, the pressure change under partial conditions can cause the situation that the instantaneous pressure suddenly increases, for example, when a product is die-cast, the hydraulic system is required to provide extremely high pressure when a material is injected into a cavity, the pressure sensor for detecting the pressure is also subjected to extremely high instantaneous impact due to extremely high instantaneous pressure when the injection is started, and the detection precision of the pressure sensor and the service life of the pressure sensor can be affected under the instantaneous impact.
Disclosure of Invention
The utility model aims to provide a pressure sensor buffer device so as to solve the problems of detection accuracy reduction and service life reduction of a pressure sensor when the pressure sensor is subjected to instantaneous increase in the monitored in-pipe pressure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the pressure sensor buffer device is arranged between the detected pipeline and the pressure sensor and comprises a primary buffer part and a secondary buffer part, wherein the primary buffer part comprises a small-caliber flow passage and a large-caliber flow passage which are mutually communicated, one end of the small-caliber flow passage, which is far away from the large-caliber flow passage, is communicated with the detected pipeline, the secondary buffer part comprises a buffer tube, one end of the buffer tube is communicated with the large-caliber flow passage, and the other end of the buffer tube is used for communicating with the pressure sensor.
The technical principle and the advantages of the scheme are as follows: according to the scheme, the primary buffer part and the secondary buffer part are arranged between the tested pipeline and the pressure sensor, so that instantaneous high pressure from the pipeline needs to enter the large-caliber flow passage after passing through the small-caliber flow passage of the primary buffer part, the pressure release occurs on the large-caliber flow passage due to the existence of the large-caliber flow passage, a cushioning effect is generated, the instantaneous pressure transmitted to the pressure sensor is reduced, the pressure moves along the buffer tube of the secondary buffer part after passing through the primary buffer part, the stroke of high-pressure fluid on the pressure sensor is greatly prolonged due to the existence of the buffer tube, the impact force is further reduced when the instantaneous pressure reaches the pressure sensor, the strength of the instantaneous impact of the pressure sensor is greatly reduced, and the maintenance of the detection precision of the pressure sensor and the service life extension of the pressure sensor are facilitated.
Preferably, as an improvement, the first-stage buffer part further comprises a first joint, one end of the first joint is communicated with the tested pipeline, and the other end of the first joint is communicated with the small-caliber runner. The first joint is convenient for the communication between the first-stage buffer part and the tested pipeline, and is equivalent to prolonging the path of fluid in the pipeline moving to the pressure sensor, thereby being beneficial to improving the buffer effect.
Preferably, as an improvement, the two ends of the head and the tail of the buffer tube are fixedly connected with connectors.
Preferably, as an improvement, be connected with auxiliary joint between buffer tube and the one-level buffer portion, auxiliary joint one end intercommunication heavy-calibre runner, the buffer tube is communicated to the other end, and this scheme makes buffer tube and one-level buffer portion's connection more simple and convenient on the one hand, and on the other hand also is favorable to prolonging high-pressure fluid's stroke, further reduces high-pressure fluid's impact force to pressure sensor.
Preferably, as an improvement, the buffer tube is capable of bending. The buffer tube that this scheme was crooked can improve the buffer capacity to high-pressure fluid, also conveniently set up the buffer tube longer and need not worry the inconvenient problem of buffer tube placement because of length brings simultaneously.
Preferably, as an improvement, the pressure sensor further comprises a valve arranged between the primary buffer part and the tested pipeline, the valve is in a normally open state in the process of detecting the pipeline pressure by the pressure sensor, and when the pressure sensor needs to be replaced, the valve is closed, so that the replacement of the pressure sensor is facilitated.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present utility model.
Fig. 2 is an enlarged schematic view of the surge drum of fig. 1.
Fig. 3 is a schematic structural diagram of a second embodiment of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the device comprises a first joint 1, a buffer cylinder 2, a small-caliber flow passage 21, a large-caliber flow passage 22, an auxiliary joint 3, a buffer tube 4, a pressure sensor 5, a sealing gasket 6 and a valve 7.
Example 1
Referring to fig. 1 and 2, the pressure sensor buffer device is installed between a detected pipeline and a pressure sensor 5, and comprises a primary buffer part and a secondary buffer part, wherein the primary buffer part comprises a first joint 1 and a buffer cylinder 2, the first joint 1 is in threaded connection with the buffer cylinder 2, a fluid input end (i.e. the top end in the drawing) of the first joint 1 is used for communicating with the detected pipeline, a small-caliber runner 21 and a large-caliber runner 22 which are coaxially communicated are integrally formed in the buffer cylinder 2, and an input end of the small-caliber runner 21 is communicated with the first joint 1. The second grade buffering portion includes buffer tube 4, and buffer tube 4 can crooked, and buffer tube 4 adopts the hose in this embodiment, and the equal fixedly connected with in both ends of head and tail of buffer tube 4 connects, connects through supplementary joint 3 fixed connection between buffer tube 4's the input and the buffer tube 2, and supplementary joint 3 is used for with heavy-calibre runner 22 and buffer tube 4 intercommunication. In this embodiment, the top end of the auxiliary connector 3 is screwed with the buffer tube 2, and the bottom end of the auxiliary connector 3 is screwed with the top connector of the buffer tube 4. The bottom joint of the buffer tube 4 is fixedly connected with the pressure sensor 5.
In addition, in order to improve the sealing performance of each connection position in this embodiment, elastic sealing gaskets 6 are installed at the connection position of the first connector 1 and the buffer tube 2, the connection position of the buffer tube 2 and the auxiliary connector 3, and the connection position of the auxiliary connector 3 and the upper connector of the buffer tube 4.
The specific procedure of this embodiment is as follows:
in the embodiment, when the pressure of the pipeline is detected, high-pressure fluid on the pipeline enters the buffer tube 4 after passing through the first joint 1, the small-caliber flow passage 21 of the buffer tube 2, the large-caliber flow passage 22 of the buffer tube 2 and the auxiliary joint 3, and finally reaches the pressure sensor 5, and in the process from the small-caliber flow passage 21 to the large-caliber flow passage 22, the instantaneous high pressure is decompressed on the large-caliber flow passage 22, so that a damping effect is generated, and the instantaneous pressure transmitted to the pressure sensor 5 is reduced; the pressure moves along the buffer tube 4 of the second-stage buffer part after passing through the first-stage buffer part with the buffer tube 2, the stroke of high-pressure fluid on the pressure sensor 5 is greatly prolonged by the existence of the bent buffer tube 4, so that the impact force is further reduced when the instantaneous pressure reaches the pressure sensor 5, the strength of the pressure sensor 5 subjected to instantaneous impact is greatly reduced, and the detection precision of the pressure sensor 5 is maintained and the service life of the pressure sensor 5 is prolonged.
Example two
With reference to fig. 3, the second embodiment is modified from the first embodiment as follows: the device further comprises a valve 7 arranged between the first connector 1 and the detected pipeline, wherein the valve 7 in the embodiment adopts a stop valve or a throttle valve, the water inlet end of the valve 7 is communicated with the pipeline or the detected pipeline, the first connector 1 is fixedly arranged at the water outlet end of the valve 7, and the specific connection mode adopts threaded connection.
Compared with the first embodiment, in the process of detecting the pipeline pressure by the pressure sensor 5, the valve 7 is in a normally open state, and when the pressure sensor 5 needs to be replaced, the valve 7 is closed, so that high-pressure fluid in a pipe cannot enter the buffer device of the pressure sensor 5, the replacement of the pressure sensor 5 is ensured not to be constrained by the pipeline circulation condition, and the replacement of the pressure sensor 5 is facilitated.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (6)
1. Pressure sensor buffer, its characterized in that: install between pipeline and the pressure sensor that is surveyed, including one-level buffer part and second grade buffer part, one-level buffer part is including the small-bore runner and the heavy-calibre runner of intercommunication each other, and the one end and the pipeline intercommunication that is surveyed of heavy-calibre runner are kept away from to the small-bore runner, and second grade buffer part includes the buffer tube, and buffer tube one end intercommunication heavy-calibre runner, and the other end is used for the intercommunication pressure sensor.
2. The pressure sensor cushioning device of claim 1, wherein: the first-stage buffer part further comprises a first joint, one end of the first joint is communicated with the tested pipeline, and the other end of the first joint is communicated with the small-caliber flow passage.
3. The pressure sensor cushioning device of claim 1, wherein: the head end and the tail end of the buffer tube are fixedly connected with connectors.
4. A pressure sensor cushioning device according to any of claims 1-3, wherein: an auxiliary joint is connected between the buffer tube and the primary buffer part, one end of the auxiliary joint is communicated with the large-caliber runner, and the other end of the auxiliary joint is communicated with the buffer tube.
5. A pressure sensor cushioning device according to any of claims 1-3, wherein: the buffer tube is capable of bending.
6. A pressure sensor cushioning device according to any of claims 1-3, wherein: the device also comprises a valve arranged between the primary buffer part and the tested pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321881775.5U CN220454770U (en) | 2023-07-17 | 2023-07-17 | Buffer device of pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321881775.5U CN220454770U (en) | 2023-07-17 | 2023-07-17 | Buffer device of pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220454770U true CN220454770U (en) | 2024-02-06 |
Family
ID=89730866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321881775.5U Active CN220454770U (en) | 2023-07-17 | 2023-07-17 | Buffer device of pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220454770U (en) |
-
2023
- 2023-07-17 CN CN202321881775.5U patent/CN220454770U/en active Active
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