CN110014002B - Dredging device and method for parallel multi-path small-caliber pressure measurement pressure guide hose - Google Patents
Dredging device and method for parallel multi-path small-caliber pressure measurement pressure guide hose Download PDFInfo
- Publication number
- CN110014002B CN110014002B CN201910430273.2A CN201910430273A CN110014002B CN 110014002 B CN110014002 B CN 110014002B CN 201910430273 A CN201910430273 A CN 201910430273A CN 110014002 B CN110014002 B CN 110014002B
- Authority
- CN
- China
- Prior art keywords
- pressure
- guide hose
- pressure guide
- dredging
- hose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a dredging device and a dredging method for a parallel multi-path small-caliber pressure measurement pressure guide hose, wherein the pressure guide hose comprises a first pressure guide hose and a second pressure guide hose, one end of the first pressure guide hose is provided with a pressure sensing hole, the other end of the first pressure guide hose is connected with the second pressure guide hose, the other end of the second pressure guide hose is connected with a collector, the dredging device comprises a three-way valve, the first pressure guide hose and the second pressure guide hose are connected through the three-way valve, a third interface of the three-way valve is connected with a dredging pipeline, the other end of the dredging pipeline is connected with a micro-positive pressure generating device, a one-way valve is further arranged on the dredging pipeline, and a valve is arranged on the first pressure guide hose. The dredging device is simple in structure, and can effectively dredge the second pressure guide hose when the second pressure guide hose is blocked.
Description
Technical Field
The invention relates to the technical field of rail transit wind speed detection equipment, in particular to a dredging device and a dredging method for a parallel multi-path small-caliber pressure measurement pressure guide hose.
Background
The parallel multi-path small-caliber pressure guide hose is widely applied to the field of detection equipment and sensors, such as wind speed detection of rail transit vehicles. When using it in adverse circumstances, when in the environment of tiny granule such as sand and dust, dust or haze, lead to pressing the hose and be blockked up easily, lead to the measuring result inaccurate, influence the normal work of equipment, take place safety problem even.
Therefore, the dredging method of the parallel small-caliber pressure-guiding hose is very important for the normal operation of equipment and facilities. However, the small-diameter pressure-guiding hose is difficult to dredge by adopting a mechanical dredging method, and a sealed environment is required by adopting a pneumatic dredging method.
Disclosure of Invention
The invention mainly aims to provide a dredging device and a dredging method for a parallel multi-path small-caliber pressure measurement pressure guide hose, and the dredging device and the dredging method are used for solving the problem that the parallel multi-path small-caliber pressure measurement pressure guide hose is difficult to dredge in the prior art when being blocked.
In order to achieve the above object, according to one aspect of the present invention, there is provided a dredging device for a parallel multi-path small-caliber pressure measurement pressure-guiding hose, the pressure-guiding hose includes a first pressure-guiding hose and a second pressure-guiding hose, one end of the first pressure-guiding hose is provided with a pressure-sensing hole, the other end of the first pressure-guiding hose is connected to the second pressure-guiding hose, the other end of the second pressure-guiding hose is connected to a collector, the dredging device includes a three-way valve, the first pressure-guiding hose and the second pressure-guiding hose are connected through the three-way valve, a third interface of the three-way valve is connected to a dredging pipeline, the other end of the dredging pipeline is connected to a micro-positive pressure generating device, a one-way valve is further disposed on the dredging pipeline, and the first pressure-guiding hose is provided with a valve.
Furthermore, the dredging device also comprises a controller, and the valve, the collector and the micro-positive pressure generating device are all connected with the controller.
Further, the controller is also connected with a timing module.
Further, the first pressure hose, the second pressure hose and the mediation pipeline of leading are many, and every first pressure hose of leading all leads pressure hose and a mediation tube coupling through a three-way valve and a second, and many second pressure hoses of leading are connected with the collector respectively, and many mediation pipelines's the other end is connected with pressure generating device through a multi-way valve respectively, all is equipped with the check valve on every dredging pipeline, all is equipped with the valve on every first pressure hose of leading.
According to another aspect of the invention, a dredging method for a parallel multi-path small-caliber pressure measurement pressure guide hose is further provided, and dredging is performed by using the dredging device, and the dredging method comprises the following steps: when the second pressure guide hose is blocked, the pressure signal in the second pressure guide hose collected by the collector is obviously weakened, the corresponding valve on the first pressure guide hose is closed at the moment, the micro-positive pressure generating device generates air pressure, and the air pressure flows into the second pressure guide hose through the dredging pipeline and the three-way valve to dredge the second pressure guide hose.
By applying the technical scheme of the invention, the three-way valve is arranged between the first pressure guide hose and the second pressure guide hose, the other interface of the three-way valve is connected with a dredging pipeline, the other end of the dredging pipeline is connected with a micro-positive pressure generating device, and the first pressure guide hose is provided with a valve; when the second pressure guide hose is blocked, the pressure signal acquired by the collector is obviously weakened, the valve is closed at the moment, the dredging pipeline is communicated with the second pressure guide hose to form a relatively sealed environment, and the micro-positive pressure generating device is started to generate air pressure, so that the second pressure guide hose can be dredged; through set up the check valve on dredging the pipeline, avoid when pressure measurement device during operation, the air current gets into dredging the pipeline and influence pressure measurement device's normal work from first pressure hose of leading. The dredging device is simple in structure, and can effectively dredge the second pressure guide hose when the second pressure guide hose is blocked.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic and diagrammatic view of the structure of a dredging device of the embodiment of the invention.
Wherein the figures include the following reference numerals:
10. a first pressure-conducting hose; 20. a pressure sensing hole; 30. a three-way valve; 40. a valve; 50. a second pressure-conducting hose; 60. a collector; 70. dredging pipelines; 80. a micro positive pressure generating device; 90. a one-way valve; 100. a controller; 110. a multi-way valve.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The use of "first," "second," and similar terms in the description and in the claims of the present application do not denote any order, quantity, or importance, but rather the intention is to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
Referring to fig. 1, a dredging device for a parallel multi-path small-caliber pressure measurement pressure-guiding hose according to an embodiment of the present invention includes a first pressure-guiding hose 10 and a second pressure-guiding hose 50, wherein one end of the first pressure-guiding hose 10 is provided with a pressure-sensing hole 20, the other end of the first pressure-guiding hose 10 is connected with the second pressure-guiding hose 50, and the other end of the second pressure-guiding hose 50 is connected with a collector 60; the dredging device comprises a three-way valve 30, a first pressure guiding hose 10 and a second pressure guiding hose 50 are connected through the three-way valve 30, a third interface of the three-way valve 30 is connected with a dredging pipeline 70, the other end of the dredging pipeline 70 is connected with a micro-positive pressure generating device 80, a one-way valve 90 is further arranged on the dredging pipeline 70, and a valve 40 is arranged on the first pressure guiding hose 10.
In the dredging device, the three-way valve 30 is arranged between the first pressure guide hose 10 and the second pressure guide hose 50, the other interface of the three-way valve 30 is connected with a dredging pipeline 70, the other end of the dredging pipeline 70 is connected with a micro-positive pressure generating device 80, and the valve 40 is arranged on the first pressure guide hose 10; when the second pressure guide hose 50 is blocked, the pressure signal acquired by the collector 60 is obviously weakened, the valve 40 is closed at the moment, the dredging pipeline 70 is communicated with the second pressure guide hose 50 to form a relatively sealed environment, and the micro-positive pressure generating device 80 is started to generate air pressure, so that the second pressure guide hose 50 can be dredged; by arranging the check valve 90 on the dredging pipeline 70, the problem that the normal operation of the pressure measuring device is influenced by the airflow entering the dredging pipeline 70 from the first pressure guide hose 10 when the pressure measuring device works is avoided. The dredging device is simple in structure, and can effectively dredge the second pressure guide hose 50 when the second pressure guide hose 50 is blocked.
In this embodiment, the first pressure guiding hose 10 should be as short as possible, so that the blockage of the fine particles such as sand, dust, haze, etc. in the first pressure guiding hose 10 is not caused.
In order to realize automatic control of the dredging operation of the second pressure guiding hose 50, referring to fig. 1, in this embodiment, the dredging device further includes a controller 100, and the valve 40, the collector 60 and the micro-positive pressure generating device 80 are connected to the controller 100. When the second pressure guiding hose 50 is blocked, the pressure signal collected by the collector 60 is obviously weakened, the controller 100 controls the valve 40 to close and controls the micro-positive pressure generating device 80 to open, so that the generated air pressure can dredge the second pressure guiding hose 50, and the automatic control of the dredging operation of the second pressure guiding hose 50 is realized.
Further, in this embodiment, a timing module (not shown) is connected to the controller 100. The timing module sets the interval time for dredging the second pressure guide hose 50, and when the set dredging time is reached, the controller 100 controls the micro-positive pressure generating device 80 to dredge the second pressure guide hose 50. By the arrangement, the second pressure guide hose 50 is automatically cleared of blockage at regular intervals, the maintenance frequency of the pressure measurement device is reduced, and the maintenance period is prolonged.
Referring to fig. 1, in this embodiment, the first pressure guiding hose 10, the second pressure guiding hose 50 and the dredging pipeline 70 are all multiple ones, each first pressure guiding hose 10 is connected to one second pressure guiding hose 50 and one dredging pipeline 70 through one three-way valve 30, the other ends of the multiple second pressure guiding hoses 50 are respectively connected to the collector 60, the other ends of the multiple dredging pipelines 70 are respectively connected to the micro-positive pressure generating device 80 through one multi-way valve 110, each dredging pipeline 70 is provided with one check valve 90, and each first pressure guiding hose 10 is provided with one valve 40. In this way, the plurality of second pressure-guiding hoses 50 in the multi-path parallel pressure measurement device can be unblocked by one micro-positive pressure generation device 80.
The application method of the dredging device of the parallel multi-path small-caliber pressure measurement pressure guide hose comprises the following steps:
when tiny particles such as dust, dust or haze enter the second pressure guide hose 50 to cause the second pressure guide hose 50 to be blocked, the pressure signal in the second pressure guide hose 50 collected by the collector 60 is obviously weakened, at the moment, the valve 40 on the first pressure guide hose 10 connected with the second pressure guide hose 50 is closed, air pressure is generated through the micro-positive pressure generating device 80, and the air pressure flows into the second pressure guide hose 50 through the dredging pipeline 70 and the three-way valve 30 to dredge the second pressure guide hose 50; in the periodic automatic dredging mode, when the dredging time set by the timing module is reached, the controller 100 automatically closes the valve 40, and opens the micro-positive pressure generating device 80 to dredge the second pressure guiding hose 50.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A dredging method of a parallel multi-path small-caliber pressure measurement pressure guide hose for rail transit wind speed detection equipment adopts a dredging device to dredge the pressure guide hose, and is characterized in that,
the pressure guide hose comprises a first pressure guide hose (10) and a second pressure guide hose (50), one end of the first pressure guide hose (10) is provided with a pressure sensing hole (20), the other end of the first pressure guide hose (10) is connected with the second pressure guide hose (50), and the other end of the second pressure guide hose (50) is connected with a collector (60);
the dredging device comprises a three-way valve (30), the first pressure guide hose (10) and the second pressure guide hose (50) are connected through the three-way valve (30), a third interface of the three-way valve (30) is connected with a dredging pipeline (70), the other end of the dredging pipeline (70) is connected with a micro-positive pressure generating device (80), a one-way valve (90) is further arranged on the dredging pipeline (70), and a valve (40) is arranged on the first pressure guide hose (10);
the dredging device further comprises a controller (100), and the valve (40), the collector (60) and the micro-positive pressure generating device (80) are all connected with the controller (100); the controller (100) is also connected with a timing module;
the first pressure guide hose (10), the second pressure guide hose (50) and the dredging pipeline (70) are multiple, each first pressure guide hose (10) is connected with one second pressure guide hose (50) and one dredging pipeline (70) through one three-way valve (30), the other ends of the second pressure guide hoses (50) are respectively connected with the collector (60), the other ends of the dredging pipelines (70) are respectively connected with the micro-positive pressure generating device (80) through a multi-way valve (110), the one-way valve (90) is arranged on each dredging pipeline (70), and the valve (40) is arranged on each first pressure guide hose (10);
the length of the first pressure guide hose (10) is shorter than that of the second pressure guide hose (50), the first pressure guide hose (10) and the second pressure guide hose (50) are connected to form a pressure guide hose, and the three-way valve (30) is arranged at one end of the pressure guide hose close to the pressure sensing hole (20);
the dredging method comprises the following steps:
when the second pressure guide hose (50) is blocked, the pressure signal in the second pressure guide hose (50) collected by the collector (60) is obviously weakened, at the moment, the corresponding valve (40) on the first pressure guide hose (10) is closed, air pressure is generated through the micro-positive pressure generating device (80), and the air pressure flows into the second pressure guide hose (50) through the dredging pipeline (70) and the three-way valve (30) to dredge the second pressure guide hose (50); when the dredging time set by the timing module is reached, the controller (100) automatically closes the valve (40), and opens the micro-positive pressure generating device (80) to dredge the second pressure guide hose (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910430273.2A CN110014002B (en) | 2019-05-22 | 2019-05-22 | Dredging device and method for parallel multi-path small-caliber pressure measurement pressure guide hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910430273.2A CN110014002B (en) | 2019-05-22 | 2019-05-22 | Dredging device and method for parallel multi-path small-caliber pressure measurement pressure guide hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110014002A CN110014002A (en) | 2019-07-16 |
| CN110014002B true CN110014002B (en) | 2021-09-28 |
Family
ID=67194278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910430273.2A Active CN110014002B (en) | 2019-05-22 | 2019-05-22 | Dredging device and method for parallel multi-path small-caliber pressure measurement pressure guide hose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110014002B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982904Y (en) * | 2006-11-27 | 2007-11-28 | 肖立新 | Automatic blockage prevention and reverse blow device for pressure measurement |
| CN101884989A (en) * | 2010-06-24 | 2010-11-17 | 瓮福（集团）有限责任公司 | Method for dredging pressure guiding system by using high-pressure nitrogen backblowing |
| CN206934975U (en) * | 2017-05-26 | 2018-01-30 | 黄石市粮丰机械有限公司 | Deduster energy-saving anti-blocking control pressurer system |
| CN207394372U (en) * | 2017-10-20 | 2018-05-22 | 中海浙江宁波液化天然气有限公司 | The nitrogen blowback sweeping device of BOG compressors |
| CN109357809A (en) * | 2018-11-09 | 2019-02-19 | 中冶焦耐自动化有限公司 | A kind of coke oven bridge tube raw coke oven gas pressure-measuring system and method |
-
2019
- 2019-05-22 CN CN201910430273.2A patent/CN110014002B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982904Y (en) * | 2006-11-27 | 2007-11-28 | 肖立新 | Automatic blockage prevention and reverse blow device for pressure measurement |
| CN101884989A (en) * | 2010-06-24 | 2010-11-17 | 瓮福（集团）有限责任公司 | Method for dredging pressure guiding system by using high-pressure nitrogen backblowing |
| CN206934975U (en) * | 2017-05-26 | 2018-01-30 | 黄石市粮丰机械有限公司 | Deduster energy-saving anti-blocking control pressurer system |
| CN207394372U (en) * | 2017-10-20 | 2018-05-22 | 中海浙江宁波液化天然气有限公司 | The nitrogen blowback sweeping device of BOG compressors |
| CN109357809A (en) * | 2018-11-09 | 2019-02-19 | 中冶焦耐自动化有限公司 | A kind of coke oven bridge tube raw coke oven gas pressure-measuring system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110014002A (en) | 2019-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5309276B2 (en) | Differential pressure sensor valve assembly with automatic zero calibration and flushing | |
| JPS6249924A (en) | Method and apparatus for controlling suction pressure of dust collecting duct | |
| EP2006181A4 (en) | Avoidance operation calculation device, avoidance control device, vehicle with each of the devices, avoidance operation calculation method, and avoidance control method | |
| CN104295907B (en) | System and method for detecting blockage position of pipeline | |
| CN110014002B (en) | Dredging device and method for parallel multi-path small-caliber pressure measurement pressure guide hose | |
| CN103253589A (en) | Escalator safety detection device and detection method | |
| CN102853876A (en) | Anti-blocking air blowing liquid level meter applicable to polyester reactor | |
| CN105793073A (en) | Method of determining tire pressure | |
| CN105397516A (en) | Workpiece in-place detecting type positioning clamp | |
| CN202687508U (en) | Conveying system for granular solid material and blockage removing device thereof | |
| CN104913100A (en) | Positioner | |
| CN108803695A (en) | vacuum degree control system and control method | |
| CN203516968U (en) | Smart valve with functions of automatic detection and breakdown elimination | |
| CN102679005A (en) | Multi-channel water treatment valve with test holes | |
| CN104669058A (en) | Vacuum detector with on-off function | |
| CN214911306U (en) | VSD pipe regulator | |
| CN101490563A (en) | A fluid sensor | |
| CN101182998B (en) | Measuring device for the pneumatic position control of parts | |
| CN209294643U (en) | A kind of pipe joint protective device | |
| CN107503325B (en) | The method of automatic dredging blowdown canal | |
| CN205300836U (en) | Coal slurry gasifier nozzle pressure differential measuring device | |
| JP3054794B2 (en) | Electro-pneumatic converter | |
| CN203011479U (en) | Anti-blocking air blowing liquid level meter applicable to polyester reactor | |
| CN205317264U (en) | Differential pressure flow meter and it puts to get pressure equipment thereof | |
| CN210456357U (en) | Coal blockage prevention protection device for coal conveying belt conveyor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |