CN113390557A - Novel purging flow channel structure and pressure measuring instrument - Google Patents
Novel purging flow channel structure and pressure measuring instrument Download PDFInfo
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- CN113390557A CN113390557A CN202110683534.9A CN202110683534A CN113390557A CN 113390557 A CN113390557 A CN 113390557A CN 202110683534 A CN202110683534 A CN 202110683534A CN 113390557 A CN113390557 A CN 113390557A
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- pressure measurement
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- 238000010926 purge Methods 0.000 title claims description 77
- 238000007664 blowing Methods 0.000 claims abstract description 89
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 78
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 210000003437 trachea Anatomy 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 82
- 238000004140 cleaning Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000010408 sweeping Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/032—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces by the mechanical action of a moving fluid
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Volume Flow (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The application discloses novel flow channel structure and pressure measurement appearance sweep relates to pressure measurement technical field. This novel flow channel structure sweeps includes the pressure measurement pipeline, the entry end of pressure measurement pipeline is used for inserting the volume of awaiting measuring gas, the measurement end of pressure measurement pipeline is used for connecting with pressure sensor, the pressure measurement pipe connection has first trachea of blowing, first trachea of blowing with preset contained angle has between the pressure measurement pipeline, first trachea of blowing is used for letting in and sweeps gas, so that sweep gas follows first trachea of blowing flows in the pressure measurement pipeline, and follow the entry end of pressure measurement pipeline flows, in order to form sweep the flow channel, wherein, preset the contained angle and be followed sweep the obtuse angle of gas flow direction. The blowing flow channel can be optimized, and the back blowing effect is improved.
Description
Technical Field
The application relates to the technical field of pressure measurement, particularly, relate to a novel flow channel structure and pressure measurement appearance sweep.
Background
Various test technologies and equipment are widely applied in various engineering fields of aviation and aerospace to carry out scientific experiments, mathematical and physical simulation experiments and various engineering experiments, verify whether the selected scheme and design parameters are correct, check the coordination, reliability and process quality of each subsystem, for example, identify the performance of the aircraft and provide a basis for improving the aircraft.
Because when carrying out wind tunnel experiment or aircraft simulation experiment, the experimental environment is comparatively unfavorable, along with the long-term going on of experiment, the inside pressure measurement pipeline of pressure measurement appearance can gather debris such as a large amount of dust, influences pressure measurement appearance's precision and life. Therefore, it is necessary to periodically back-purge the pressure measurement line to improve the cleanliness in the pressure measurement line.
In the prior art, generally, the blowback hole is connected with the pressure measurement pipeline, and the blowback hole blows air reversely into the pressure measurement pipeline to realize the purpose of cleaning the pressure measurement pipeline, however, because the pressure measurement pipeline is internally provided with a part which can not flow, the blowback sweeping process causes air flow disorder, and the blowback sweeping effect is poor.
Disclosure of Invention
An object of this application is to provide a novel runner structure and ressure measurement appearance sweep, can optimize the runner that sweeps, promote the blowback and sweep the effect.
The embodiment of the application is realized as follows:
an aspect of the embodiment of the application provides a novel flow channel structure sweeps, including the pressure measurement pipeline, the entry end of pressure measurement pipeline is used for inserting the volume of awaiting measuring gas, the measurement end of pressure measurement pipeline is used for connecting with pressure sensor, the pressure measurement pipe connection has first blowing pipe, first blowing pipe with preset contained angle has between the pressure measurement pipeline, first blowing pipe is used for letting in and sweeps gas, so that sweep gas follows first blowing pipe flows in the pressure measurement pipeline, and follows the entry end of pressure measurement pipeline flows out, in order to form sweep the flow channel, wherein, preset the contained angle is for following sweep the obtuse angle of gas flow direction.
Optionally, the novel purging flow channel structure further comprises a second air blowing pipe, the second air blowing pipe is connected with the pressure measuring pipeline close to the measuring end, and the second air blowing pipe is vertically connected with the pressure measuring pipeline.
Optionally, the novel purging flow channel structure further comprises a main air pipe, and the main air pipe is connected with the first air blowing pipe and the second air blowing pipe respectively.
Optionally, a check valve is disposed on the main gas pipe, so that the purge gas flows from the main gas pipe into the first and second gas blowing pipes, respectively.
Optionally, the pressure measuring pipelines include a plurality of pressure measuring pipelines, the pressure measuring pipelines are respectively arranged at intervals, and the pressure sensors are arranged in one-to-one correspondence with the pressure measuring pipelines.
Optionally, the first air blowing pipe and the second air blowing pipe are respectively connected with the pressure measuring pipelines in a one-to-one correspondence manner.
Optionally, the preset included angle ranges from 135 ° to 155 °.
Optionally, the inlet end of the pressure measurement conduit is provided with a first quick plug.
Optionally, the inlet of the main air pipe is provided with a second quick plug.
On the other hand of this application embodiment provides a pressure measurement appearance, include as above arbitrary the novel runner structure that sweeps, and the pressure sensor that novel pressure measurement pipeline that sweeps the runner structure measured the end and set up.
The beneficial effects of the embodiment of the application include:
the novel runner structure and pressure measurement appearance of sweeping that this application embodiment provided inserts the volume of awaiting measuring through the entry end with the pressure measurement pipeline, and the measurement end and the pressure sensor of pressure measurement pipeline are connected, can measure the pipeline of the volume of awaiting measuring pressure. Along with the increase of experiment number of times, when needing clean pressure measurement pipeline, through the first gas blowing pipe of being connected with pressure measurement pipeline, when letting in purge gas to first gas blowing pipe in, make purge gas along first gas blowing pipe inflow pressure measurement pipeline to from the entry end outflow of pressure measurement pipeline, thereby play the purpose of cleaning pressure measurement pipeline. Simultaneously, through will predetermineeing the contained angle and set up to the obtuse angle along the purge gas flow direction for purge gas is more smooth-going from first blast pipe transition to pressure measurement pipeline, and the flow of air current is also more smooth and easy, is favorable to reducing turbulent production. In addition, the area between the position where the first blowing pipe is connected with the pressure measuring pipeline and the measuring end is influenced by the flowing of the blowing gas, sucking and collecting air flow can be generated, and impurities such as dust and the like can be cleaned out. Through the form, the blowing channel can be optimized, and the back blowing effect is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a novel purge flow channel structure provided in an embodiment of the present application;
fig. 2 is a second schematic structural view of the novel purge flow channel structure according to the embodiment of the present application;
fig. 3 is a third schematic structural view of a novel purge flow channel structure according to an embodiment of the present disclosure;
fig. 4 is a fourth schematic structural view of the novel purge flow channel structure provided in the embodiment of the present application.
Icon: 100-a novel purge flow channel structure; 105-a pressure sensor; 110-pressure measuring pipe; 112-an inlet end; 114-a measurement end; 120-a first blowing pipe; 130-a second gas blowing pipe; 140-main gas pipe; 142-a one-way valve; 150-a first quick plug; 160-second quick plug.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, the present embodiment provides a novel purging flow channel structure 100, including a pressure measuring pipeline 110, an inlet end 112 of the pressure measuring pipeline 110 is used for accessing a gas to be measured, a measuring end 114 of the pressure measuring pipeline 110 is used for connecting with a pressure sensor 105, the pressure measuring pipeline 110 is connected with a first blowing pipe 120, a preset included angle α is formed between the first blowing pipe 120 and the pressure measuring pipeline 110, the first blowing pipe 120 is used for introducing a purging gas, so that the purging gas flows into the pressure measuring pipeline 110 along the first blowing pipe 120 and flows out from the inlet end 112 of the pressure measuring pipeline 110 to form a purging flow channel, wherein the preset included angle α is an obtuse angle along a flow direction of the purging gas.
Specifically, the pressure measuring pipe 110 is used for communicating the pipe to be measured with the inlet end 112 of the pressure measuring pipe 110 when measuring the pressure, so that the pipe to be measured is connected with the pressure sensor 105 through the pressure measuring pipe 110, thereby achieving the purpose of measuring the pressure. Because foreign materials such as dust are accumulated in the pressure measuring pipe 110 during the pressure measurement, the pressure measuring pipe 110 needs to be cleaned periodically.
By connecting the first blowing pipe 120 to the pressure measurement pipe 110 and providing a predetermined included angle α between the first blowing pipe 120 and the pressure measurement pipe 110, impurities such as dust accumulated in the pressure measurement pipe 110 can be blown out from the inlet end 112 of the pressure measurement pipe 110 when blowing the purge gas into the first blowing pipe 120. Because the measuring end 114 of the pressure measuring pipeline 110 is connected with the pressure sensor 105, the measuring end 114 of the pressure measuring pipeline 110 cannot allow gas to pass through, and a rising sucking and collecting airflow can be generated in the area between the position where the first air blowing pipe 120 is connected with the pressure measuring pipeline 110 and the measuring end 114, so that impurities in the area between the position where the first air blowing pipe 120 is connected with the pressure measuring pipeline 110 and the measuring end 114 can be cleaned out from the inlet end 112 of the pressure measuring pipeline 110, and the back blowing effect is improved.
It should be noted that, by setting the preset included angle α to be an obtuse angle along the flow direction of the purge gas (as the arrangement form of the pressure measurement pipeline 110 and the first purge pipe 120 in fig. 1), the flow direction of the purge gas is the direction shown by the arrow, after the purge gas is introduced into the first purge pipe 120, the purge gas flows into the pressure measurement pipeline 110 through the first purge pipe 120, because the off-angle in the direction of the first purge pipe 120 and the pressure measurement pipeline 110 is smaller, the purge gas is smoothly transited from the first purge pipe 120 to the pressure measurement pipeline 110, and the effect of sucking and collecting the gas flow in the region between the position where the first purge pipe 120 is connected with the pressure measurement pipeline 110 and the measurement end 114 is favorably improved.
The novel purge flow channel structure 100 provided by the embodiment of the application can measure the pipeline to be measured in pressure by connecting the inlet end 112 of the pressure measuring pipeline 110 to the gas to be measured, and connecting the measuring end 114 of the pressure measuring pipeline 110 with the pressure sensor 105. With the increase of the number of experiments, when the pressure measuring pipeline 110 needs to be cleaned, when the purging gas is introduced into the first blowing pipe 120 through the first blowing pipe 120 connected to the pressure measuring pipeline 110, the purging gas flows into the pressure measuring pipeline 110 along the first blowing pipe 120 and flows out from the inlet end 112 of the pressure measuring pipeline 110, so that the purpose of cleaning the pressure measuring pipeline 110 is achieved. Meanwhile, the preset included angle alpha is set to be an obtuse angle along the flow direction of the purging gas, so that the purging gas is smoothly transited from the first purging pipe 120 to the pressure measuring pipeline 110, the flow of the gas flow is smoother, and the generation of turbulent flow is favorably reduced. In addition, the region between the connection position of the first purge pipe 120 and the pressure measuring pipe 110 and the measuring end 114 is influenced by the flow of the purge gas, and a suction gas flow is generated, so that the dust and other impurities can be cleaned. Through the form, the blowing channel can be optimized, and the back blowing effect is improved.
In an optional embodiment of the present application, the first blowing pipe 120 may also be an arc-shaped pipe, as long as it can be ensured that an obtuse angle is formed between a tangent line at a connection of the arc-shaped pipe and the pressure measuring pipeline 110 (along a portion where the blowing gas flows), and the arc-shaped pipe may be flexibly arranged according to actual needs.
As shown in FIG. 2, the novel purging flow channel structure 100 further includes a second gas blowing pipe 130, the second gas blowing pipe 130 is connected to the pressure measuring pipe 110 near the measuring end 114, and the second gas blowing pipe 130 is vertically connected to the pressure measuring pipe 110.
Specifically, through being connected second gas blow pipe 130 and pressure measurement pipeline 110 near measurement end 114, when sweeping the pressure measurement pipeline 110 clean, first gas blow pipe 120 is as the guide way, second gas blow pipe 130 is as the reposition of redundant personnel passageway, through mutually supporting between first gas blow pipe 120 and the second gas blow pipe 130, not only can make the regional production between position department that first gas blow pipe 120 is connected with pressure measurement pipeline 110 and the measurement end 114 suck the air-collecting flow, and can eliminate the vortex phenomenon of the position department that first gas blow pipe 120 is connected with pressure measurement pipeline 110, further optimization sweeps the runner, so that the clean pressure measurement pipeline 110 of furthest, promote clean effect.
It should be noted that the gas flow rate in the first blowing pipe 120 and the second blowing pipe 130 is not limited in this embodiment. For example, the flow rates of the gases in the first blowing pipe 120 and the second blowing pipe 130 may be equal, or the flow rate of the gas in the first blowing pipe 120 may be greater than the flow rate of the gas in the second blowing pipe 130, or the flow rate of the gas in the first blowing pipe 120 may be less than the flow rate of the gas in the second blowing pipe 130, so that the required cleaning effect may be achieved.
As shown in FIG. 3, the novel purging flow channel structure 100 further includes a main air tube 140, and the main air tube 140 is connected to the first air blowing tube 120 and the second air blowing tube 130 respectively.
Specifically, when the first blowing pipe 120 and the second blowing pipe 130 are connected to the pressure measurement pipe 110, respectively, the purge gas may flow into the pressure measurement pipe 110 from the first blowing pipe 120 and the second blowing pipe 130, respectively, so that the purge gas flows out from the inlet end 112 of the side pressure measurement pipe, thereby performing a cleaning function. When the novel purging flow channel structure 100 further comprises the main air pipe 140 connected with the first blowing pipe 120 and the second blowing pipe 130 respectively, the purging gas can flow in from the main air pipe 140, and the purging gas flowing into the main air pipe 140 can flow out from the first blowing pipe 120 and the second blowing pipe 130 respectively, which is beneficial to improving the convenience when the purging gas is connected.
As shown in FIG. 3, the main gas pipe 140 is provided with a check valve 142 to allow the purge gas to flow from the main gas pipe 140 into the first and second gas blowing pipes 120 and 130, respectively.
Specifically, by providing the check valve 142 on the main gas pipe 140, the purge gas can only flow into the first and second gas blowing pipes 120 and 130 from the main gas pipe 140, respectively, until flowing into the pressure measurement pipeline 110 and flowing out from the inlet end 112 of the pressure measurement pipeline 110 according to the one-way conduction characteristic of the check valve 142. The inlet end 112 of the pressure measuring pipeline 110 is connected with the pressure pipeline to be measured, and when pressure measurement is carried out, gas flows out from the main gas pipe 140 to form a gas leakage phenomenon, so that the accuracy of a measuring result is prevented from being influenced. Adopt above-mentioned mode, can simplify the setting form, when needs are cleaned pressure measurement pipeline 110, can make purge gas flow in to pressure measurement pipeline 110 from the trunk line and clean, and in carrying out normal use, prevent that gas from trunk line department from leaking, be favorable to guaranteeing measuring result's accuracy.
It is understood that when only the first blowing pipe 120 is provided, a manual valve or a check valve 142 may be provided on the first blowing pipe 120 to allow the first blowing pipe 120 to be conducted when necessary. Similarly, when only the first blowing pipe 120 and the second blowing pipe 130 are provided, a manual valve or a one-way valve 142 may be respectively disposed on the first blowing pipe 120 and the second blowing pipe 130, so as to conduct the first blowing pipe 120 and the second blowing pipe 130 when necessary, and simultaneously ensure the accuracy of the measurement result when the pressure measurement is performed by connecting the pressure measurement channel with the pressure sensor 105.
In an alternative embodiment of the present application, the pressure measuring pipes 110 include a plurality of pressure measuring pipes 110, the plurality of pressure measuring pipes 110 are respectively disposed at intervals, and the pressure sensors 105 are disposed in one-to-one correspondence with the pressure measuring pipes 110.
Specifically, adopt above-mentioned mode, when being connected through pressure measurement pipeline 110 and pressure sensor 105 and carrying out pressure measurement, can measure the pipeline of multiunit pressure that awaits measuring simultaneously to reach multiunit data simultaneously, reduced the actual measurement in-process and need repeated same action carry out the work load of measuring one by one, be favorable to reducing intensity of labour, and promote measuring efficiency.
In an alternative embodiment of the present application, when a plurality of pressure measurement channels are used, the first and second blowing pipes 120 and 130 are connected to the pressure measurement channels 110 in a one-to-one correspondence. In the above-described form, the pressure measuring passage may be cleaned by the first and second air blowing pipes 120 and 130 connected to the pressure measuring passage, respectively. It can be understood that, when adopting a plurality of pressure measurement passageways, first gas blow pipe 120 and second gas blow pipe 130 also need to correspond and set up to the multiunit, in order to make the purge gas be convenient for insert, can make first gas blow pipe 120 of multiunit and second gas blow pipe 130 be connected with main trachea 140 respectively, only need to let in the purge gas to main trachea 140 can, so, be favorable to simplifying the connection form, promote maneuverability, and reduce intensity of labour.
In an alternative embodiment of the present application, the preset included angle α ranges between 135 ° and 155 °, as shown in fig. 1. For example, the preset included angle α may be set to 135 °, 150 °, or 155 °, so long as the required cleaning effect is satisfied and the connection between the first blowing pipe 120 and the pressure measuring pipe 110 is facilitated.
In an alternative embodiment of the present application, as shown in fig. 4, the inlet end 112 of the pressure sensing tubing 110 is provided with a first quick plug 150. Thus, when pressure measurement is performed through the pressure measurement pipeline 110, a required connection relationship can be directly established through the first quick plug 150, which is beneficial to improving convenience of operation.
In an alternative embodiment of the present application, as shown in FIG. 4, the inlet of main gas tube 140 is provided with a second quick connector 160. Thus, when the pressure measuring pipeline 110 is cleaned as required, the required connection relationship can be directly established through the second quick plug 160, so that the connection between the purging gas and the main gas pipe 140 is more convenient, and the convenience of operation is improved.
The embodiment of the present application further discloses a pressure measuring instrument, which includes the novel purging flow channel structure 100 in the foregoing embodiment, and a pressure sensor 105 disposed at a measuring end 114 of a pressure measuring pipeline 110 of the novel purging flow channel structure 100. The pressure measuring instrument comprises the same structure and beneficial effects as the novel purging flow passage structure 100 in the previous embodiment. The structure and the beneficial effects of the novel purge flow path structure 100 have been described in detail in the foregoing embodiments, and are not described in detail herein.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a novel purging flow channel structure, a serial communication port, including the pressure measurement pipeline, the entry end of pressure measurement pipeline is used for inserting the volume of awaiting measuring gas, the measurement end of pressure measurement pipeline is used for connecting with pressure sensor, the pressure measurement pipe connection has first blowing pipe, first blowing pipe with preset the contained angle between the pressure measurement pipeline, first blowing pipe is used for letting in purging gas, so that purging gas follows first blowing pipe flows in the pressure measurement pipeline, and follows the entry end of pressure measurement pipeline flows out, so as to form purge the runner, wherein, preset the contained angle and be the edge purge the obtuse angle of gas flow direction.
2. The novel purging flow channel structure according to claim 1, further comprising a second blowing pipe, wherein the second blowing pipe is connected with the pressure measuring pipeline close to the measuring end, and the second blowing pipe is vertically connected with the pressure measuring pipeline.
3. The novel purging flow channel structure according to claim 2, further comprising a main gas pipe, wherein the main gas pipe is connected to the first gas blowing pipe and the second gas blowing pipe respectively.
4. The novel purging flow channel structure according to claim 3, wherein a one-way valve is arranged on the main gas pipe, so that purging gas flows from the main gas pipe into the first purging pipe and the second purging pipe respectively.
5. A novel purging flow channel structure according to any one of claims 2-4, characterized in that the pressure measuring pipelines comprise a plurality of pressure measuring pipelines, the pressure measuring pipelines are respectively arranged at intervals, and the pressure sensors are arranged in one-to-one correspondence with the pressure measuring pipelines.
6. The novel purging flow channel structure according to claim 5, wherein the first and second purging pipes are connected with the pressure measuring pipes in a one-to-one correspondence manner.
7. The novel purge flow channel structure according to any of claims 1 to 4, wherein the predetermined included angle is in a range of 135 ° to 155 °.
8. A novel purging flow channel structure according to any one of claims 1-4, characterized in that the inlet end of the pressure measuring pipeline is provided with a first quick plug.
9. The novel purging flow channel structure according to claim 3 or 4, wherein the inlet of the main gas pipe is provided with a second quick plug.
10. A pressure measuring instrument, comprising the novel purging flow channel structure as claimed in any one of claims 1 to 9, and a pressure sensor disposed at a measuring end of a pressure measuring pipe of the novel purging flow channel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110683534.9A CN113390557A (en) | 2021-06-18 | 2021-06-18 | Novel purging flow channel structure and pressure measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110683534.9A CN113390557A (en) | 2021-06-18 | 2021-06-18 | Novel purging flow channel structure and pressure measuring instrument |
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| CN113390557A true CN113390557A (en) | 2021-09-14 |
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| CN202110683534.9A Pending CN113390557A (en) | 2021-06-18 | 2021-06-18 | Novel purging flow channel structure and pressure measuring instrument |
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| CN203171848U (en) * | 2013-03-11 | 2013-09-04 | 华菱星马汽车（集团）股份有限公司 | Dry-mixed mortar truck and discharge system thereof |
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| CN111676464A (en) * | 2020-06-17 | 2020-09-18 | 北京北方华创微电子装备有限公司 | Exhaust device of semiconductor processing equipment and semiconductor processing equipment |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203171848U (en) * | 2013-03-11 | 2013-09-04 | 华菱星马汽车（集团）股份有限公司 | Dry-mixed mortar truck and discharge system thereof |
| CN204855079U (en) * | 2015-05-27 | 2015-12-09 | 广东大唐国际潮州发电有限责任公司 | Pressure, automatic device that sweeps of differential pressure measurement |
| CN206496772U (en) * | 2017-02-13 | 2017-09-15 | 马颖 | A kind of colliery and petrochemical industry gas sensor probe dust guard |
| CN207095766U (en) * | 2017-08-10 | 2018-03-13 | 阮征 | A kind of furnace pressure sampling and measuring device |
| CN207937111U (en) * | 2018-03-01 | 2018-10-02 | 白银有色集团股份有限公司 | A kind of back-blowing device of transmitter pressure guiding pipe |
| CN209619291U (en) * | 2019-03-01 | 2019-11-12 | 新疆新业能源化工有限责任公司 | A kind of gasification ashes lock pressure measuring system |
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Application publication date: 20210914 |
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