CN219157291U - Scraper system with air bag detection device - Google Patents
Scraper system with air bag detection device Download PDFInfo
- Publication number
- CN219157291U CN219157291U CN202223305041.0U CN202223305041U CN219157291U CN 219157291 U CN219157291 U CN 219157291U CN 202223305041 U CN202223305041 U CN 202223305041U CN 219157291 U CN219157291 U CN 219157291U
- Authority
- CN
- China
- Prior art keywords
- air
- air bag
- detection
- pressure regulating
- bag
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 63
- 230000001105 regulatory effect Effects 0.000 claims abstract description 65
- 238000007790 scraping Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Images
Landscapes
- Paper (AREA)
Abstract
A doctor blade system with an air bag detection device, comprising: the scraper system with the air bag detection device further comprises: the air supply system comprises a detection part and a detection pressure regulating valve, wherein the detection air supply is used for supplying air to a first air bag and/or a second air bag to be detected of the air bag part during detection, the detection pressure regulating valve is arranged between the detection air supply and the first air bag and/or the second air bag to be detected of the air bag part and used for regulating the air pressure supplied by the detection air supply to be the same as the air pressure supplied by the air supply, and a three-way valve part is arranged on a pipeline between the pressure regulating valve part and the air bag part, so that the first air bag and/or the second air bag of the air bag part are optionally connected to the detection part or the air supply.
Description
Technical Field
The utility model relates to a scraper system with an air bag detection device, in particular to a scraper system with an air bag detection device with an air bag on-line detection function.
Background
During papermaking, it is necessary to use a doctor blade to scrape the paper from the cylinder. The doctor blade is usually arranged next to the drying cylinder of the drying section. The action of the scraper is regulated by the pressure difference of the two air bags.
When a fault occurs in the related air bag, for example, when a scraper is jammed, the pressure of the air bag needs to be detected to judge the air leakage amount of the air bag.
At present, the air pipe connected with the air bag is detached, and the flow connection with the air flushing source is disconnected. And then connected to a flowmeter to check the pressure of the air bag or the air leakage condition.
However, this can interfere with the normal production process. If the inspection is performed while the doctor blade system is in operation, the doctor blade may be erroneously turned open due to air leakage from the air bag. In addition, a part of scrapers are provided with pressure gauges, and low-pressure alarms can be generated when the air pipes are inserted and pulled out, so that the operation of the whole paper machine device can be influenced incidentally, and even the machine is stopped. At present, the air leakage detection cannot be carried out when the paper machine normally operates.
Accordingly, there remains a need for further improvements in the construction of existing doctor blade systems.
Disclosure of Invention
In view of the foregoing problems of the prior art, an object of the present utility model is to provide a doctor blade system of an air bag detecting device having an air bag on-line detecting function. By externally accessing the air supply and series flow meter test, it is ensured that the doctor air bag is still under pressure during the test.
In order to solve the above problems, the present utility model provides a doctor blade system with an air bag detecting device, comprising: the scraper part is used for scraping paper, the air bag part comprises a first air bag and a second air bag, the first air bag and the second air bag are arranged on the same side of the scraper part, and the scraping action of the scraper part is regulated by regulating the pressure difference of the first air bag and the second air bag; the air supply source supplies air to the first air bag and the second air bag of the air bag part through corresponding pipelines; the pressure regulating valve part comprises a first pressure regulating valve and a second pressure regulating valve, and is respectively arranged between the air supply source and the first air bag and the second air bag and used for regulating the air pressure supplied by the air supply source; wherein, doctor blade system with gasbag detection device still includes: the air supply system comprises a detection part and a detection pressure regulating valve, wherein the detection air supply is used for supplying air to a first air bag and/or a second air bag to be detected of the air bag part during detection, the detection pressure regulating valve is arranged between the detection air supply and the first air bag and/or the second air bag to be detected of the air bag part and used for regulating the air pressure supplied by the detection air supply to be the same as the air pressure supplied by the air supply, and a three-way valve part is arranged on a pipeline between the pressure regulating valve part and the air bag part, so that the first air bag and/or the second air bag of the air bag part are optionally connected to the detection part or the air supply.
In a second example of the system, optionally including the first example, and further, the three-way valve portion includes a first three-way valve and a second three-way valve, wherein the first three-way valve is disposed on a line between the first pressure regulating valve and the first air bag, selectively connecting the first air bag to the test air supply, and wherein the second three-way valve is disposed on a line between the second pressure regulating valve and the second air bag, selectively connecting the second air bag to the test air supply.
In a third example of the system, one or more of the first example to the second example are optionally included, and further comprising a valve box, wherein the first pressure regulating valve and the second pressure regulating valve of the pressure regulating valve portion are provided in the valve box, and wherein the first three-way valve and the second three-way valve of the three-way valve portion are provided on a side wall of the valve box.
The scraper system with the air bag detection device can not interrupt production and detect pressure, and can rapidly and safely remove and diagnose faults of the scraper air bag, thereby improving maintenance efficiency.
Drawings
In order to describe the manner in which the above-recited and other features of the utility model can be obtained, a more particular description of the utility model briefly described above will be rendered by reference to exemplary embodiments thereof which are illustrated in the appended drawings. Understanding that these drawings depict only exemplary embodiments of the utility model and are not therefore to be considered to be limiting of its scope, the utility model will be described and explained with additional specificity and detail through the use of the accompanying drawings.
The drawings are to scale and are not necessarily to scale, but are intended to be more clearly illustrative. In the drawings:
fig. 1 is a schematic view of a doctor blade system with an air-bag detection device according to a preferred embodiment of the utility model.
List of reference numerals:
10. scraper part
20. Airbag part
21. First air bag
22. Second air bag
30. Air supply source
40. Pressure regulating valve part
41. First pressure regulating valve
42. Second pressure regulating valve
50. Detection unit
51. Detecting an air supply source
52. Detecting pressure regulating valve
60. Three-way valve part
61. First three-way valve
62. Second three-way valve
Detailed Description
The present utility model will be further described with reference to specific embodiments and drawings, in which more details are set forth in the following description in order to provide a thorough understanding of the present utility model, it will be apparent that the present utility model can be embodied in many other forms than described herein, and that those skilled in the art may make similar generalizations and deductions depending on the actual application without departing from the spirit of the present utility model, and therefore should not be taken as limiting the scope of the present utility model in its context.
Fig. 1 schematically shows a doctor system with an air bag detecting device according to a preferred embodiment of the present utility model, which includes a doctor portion 10 for scraping paper, an air bag portion 20 for regulating the operation of the doctor portion 10, an air supply source 30 for supplying air to the air bag portion 20, and a pressure regulating valve portion 40 for regulating the air pressure supplied from the air supply source 30.
The balloon portion 20 may include a first balloon 21 and a second balloon 22 mounted on the same side of the scraper portion 10. The scraping action of the scraper portion is regulated by regulating the pressure difference between the first air bag 21 and the second air bag 22.
The air supply source 30 may supply air to the first and second air cells 21 and 22 of the air cell portion 20 via corresponding lines.
The pressure regulating valve portion 40 may include a first pressure regulating valve 41 and a second pressure regulating valve 42, which are disposed between the air supply source 30 and the first and second air bags 21 and 21, respectively, and serve to regulate the air pressures supplied from the air supply source 30 to the first and second air bags 21 and 21, respectively. The pressure of the regulating valves is regulated by the regulating screws, and the regulating valves are not further regulated during normal operation after the setting. The pressure is set according to the field conditions.
The pressure regulating valve can regulate the working air pressure between approximately 0.07 and 2.0BAR, and can regulate the pressure so that the doctor can better contact the drying cylinder and scrape accumulated materials if the accumulated materials on the drying cylinder are found to be relatively more sometimes.
In a preferred embodiment of the utility model the doctor system with the air-bag detection device further comprises a detection part 50 comprising a detection air supply 51 and a detection pressure regulating valve 52.
In a preferred embodiment, the detection air supply source 51 may be used to supply air to the first air cell 21 and/or the second air cell 22 of the air cell portion 20 to be detected at the time of detection.
Preferably, the detection air supply 51 may be a portable air supply that is removable, such as, but not limited to, a gas cylinder, an air pump, or the like.
In a preferred embodiment, a detection and pressure regulating valve 52 may be disposed between the detection air supply source 51 and the first air bag 21 and/or the second air bag 22 of the air bag portion 20 to be detected for regulating the air pressure supplied from the detection air supply source 51 to be the same as the air pressure supplied from the air supply source 30.
The highest pressure of the scraper air bag is 1.7bar when the scraper air bag works normally, and the detected air pressure is set according to the highest pressure of the scraper air bag, so that repeated adjustment is not needed when a plurality of scrapers of a plurality of devices are detected.
The air supply is connected from the outside during the detection and the serial flow meter is used for detection, so that the production is not interrupted, the doctor air bag is always in a preset pressure state, and the air pressure required by the operation of the doctor system can still be met.
In a preferred embodiment of the utility model, the doctor system with the balloon detection device further comprises a three-way valve portion 60.
The three-way valve portion 60 is disposed on a line between the pressure regulating valve portion 40 and the air bag portion 20, so that the first air bag 21 and/or the second air bag 22 of the air bag portion 20 are/is optionally connected to the detecting portion 50 or the air supply source 30.
In a preferred embodiment, the three-way valve part 60 may include a first three-way valve 61 and a second three-way valve 62.
A first three-way valve 61 is arranged in the line between the first pressure regulating valve 41 and the first air bag 21, allowing the first air bag 21 to be optionally connected to the detection air supply 51.
A second three-way valve 62 is disposed in the line between the second pressure regulating valve 42 and the second bladder 22, allowing the second bladder 22 to be selectively connected to the test air supply 51.
The three-way valve can be switched by rotating the handle by 90 degrees, for example, the handle is in a vertical position during normal operation and is rotated to a horizontal position during detection.
In a preferred embodiment of the utility model, the doctor blade system with the balloon detection device further comprises a valve housing. Optionally, a plurality of scraper air supply pipelines of a plurality of devices can be arranged in the same valve box, so that centralized management is facilitated.
Preferably, the first pressure regulating valve 41 and the second pressure regulating valve 42 of the pressure regulating valve portion 40 are provided in the valve box. Preferably, the first three-way valve 61 and the second three-way valve 62 of the three-way valve portion 60 are provided on the side wall of the valve housing. Preferably, the pipeline interface of the scraper system is arranged on the side wall of the valve box, so that identification, switching and management are facilitated.
Preferably, the air supply 30 and the test air supply 51 can use the same instrument in the valve box to display the air pressure and adjust the air supply pressure.
With the doctor system with the air bag detecting device according to the present utility model, the detecting air supply source and the pipe line using the detecting portion are connected to the air bag to be detected, and the supplied air pressure is regulated using the detecting pressure regulating valve, so that the production is not interrupted, and the pressure detection is performed later.
Through switching the three-way valve between 1-3 and 2-3 positions, normal operation and detection operation can be easily and quickly switched, when normal operation is required, the three-way valve is switched to the 2-3 position, and when a problem occurs and a certain air bag needs to be detected, the three-way valve is switched to the 1-3 position, and detection can be carried out on the certain air bag. The fault of the scraper air bag can be rapidly and safely removed and diagnosed, and the maintenance efficiency is improved.
While various embodiments have been described above, it should be understood that they have been presented by way of example, and not limitation. It will be apparent to those skilled in the relevant art that the disclosed subject matter may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
The present disclosure also includes various modifications and modifications within the equivalent scope. In addition, various combinations and modes, including only one element, more than one or less than one other combinations and modes, are also within the scope and spirit of the present disclosure.
The above-described embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and not as subject of any limitation of the utility model.
Claims (3)
1. A doctor blade system with an air bag detection device, comprising:
a scraper portion (10), the scraper portion (10) being for scraping paper,
an air bag portion (20), wherein the air bag portion (20) comprises a first air bag (21) and a second air bag (22) which are arranged on the same side of the scraper portion (10), and the scraping action of the scraper portion is regulated by regulating the pressure difference between the first air bag (21) and the second air bag (22);
a gas supply source (30), the gas supply source (30) supplying gas to the first airbag (21) and the second airbag (22) of the airbag section (20) via respective pipelines;
a pressure regulating valve portion (40), the pressure regulating valve portion (40) including a first pressure regulating valve (41) and a second pressure regulating valve (42) respectively disposed between the air supply source (30) and the first and second air bags (21, 22) for regulating the air pressure supplied by the air supply source (30);
the scraper system with the air bag detection device is characterized by further comprising:
a detection unit (50), wherein the detection unit (50) comprises a detection air supply source (51) and a detection pressure regulating valve (52), wherein the detection air supply source (51) is used for supplying air to a first air bag (21) and/or a second air bag (22) to be detected of the air bag unit (20) during detection, and
wherein the detection pressure regulating valve (52) is arranged between the detection air supply source (51) and the first air bag (21) and/or the second air bag (22) to be detected of the air bag portion (20), for regulating the air pressure supplied by the detection air supply source (51) to be the same as the air pressure supplied by the air supply source (30), and
a three-way valve portion (60), the three-way valve portion (60) being arranged on a line between the pressure regulating valve portion (40) and the air bag portion (20) such that the first air bag (21) and/or the second air bag (22) of the air bag portion (20) are/is optionally connected to the detection portion (50) or the air supply source (30).
2. A doctor blade system with an air-bag detection device according to claim 1, characterized in that,
the three-way valve part (60) comprises a first three-way valve (61) and a second three-way valve (62),
wherein the first three-way valve (61) is arranged on a line between the first pressure regulating valve (41) and the first air bag (21) to selectively connect the first air bag (21) to the detection air supply source (51), and
wherein the second three-way valve (62) is arranged on a line between the second pressure regulating valve (42) and the second air-bag (22), so that the second air-bag (22) is optionally connected to the detection air supply source (51).
3. A doctor blade system with an air-bag detection device according to claim 2, characterized in that,
also comprises a valve box which is arranged on the inner side of the valve box,
wherein a first pressure regulating valve (41) and a second pressure regulating valve (42) of the pressure regulating valve portion (40) are provided in the valve box, and
wherein a first three-way valve (61) and a second three-way valve (62) of the three-way valve portion (60) are provided on a side wall of the valve housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223305041.0U CN219157291U (en) | 2022-12-09 | 2022-12-09 | Scraper system with air bag detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223305041.0U CN219157291U (en) | 2022-12-09 | 2022-12-09 | Scraper system with air bag detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219157291U true CN219157291U (en) | 2023-06-09 |
Family
ID=86637604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223305041.0U Active CN219157291U (en) | 2022-12-09 | 2022-12-09 | Scraper system with air bag detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219157291U (en) |
-
2022
- 2022-12-09 CN CN202223305041.0U patent/CN219157291U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101258456B (en) | Method of detecting abnormality in fluid supply system, using flow rate control device having pressure sensor | |
| US7940189B2 (en) | Leak detector for process valve | |
| US4181017A (en) | Fault detecting apparatus for fluid pressure systems | |
| JP5002715B2 (en) | Stop valve for hydraulic circuit | |
| JP2011231924A5 (en) | ||
| CN219157291U (en) | Scraper system with air bag detection device | |
| JP2010069455A (en) | Mixing system for foam fire extinguishing agent | |
| JP2012137183A5 (en) | ||
| EP3270251B1 (en) | Pipeline network diagnosing device | |
| US20100064778A1 (en) | Testing apparatus and method for valves | |
| KR101707894B1 (en) | Apparatus for opening and closing a movable weir | |
| US7950266B2 (en) | Method and apparatus for fluid pressure testing | |
| KR100478854B1 (en) | Apparatus to test pressure for a tube | |
| CN108980632B (en) | A kind of detection device for pipe leakage | |
| CN113686568B (en) | Online detection method and detection device for pinch valve | |
| JPH01138305A (en) | Closing member monitor | |
| CN216788841U (en) | Test device and test system | |
| CN109027701B (en) | A kind of municipal sewers leak hunting method | |
| CA2639600A1 (en) | Testing apparatus and method for valves | |
| KR200267434Y1 (en) | Back-up Roll Choke Pressure Sensing Device | |
| CN218994619U (en) | Non-stop detection device for pressure gauge | |
| JP3751757B2 (en) | Boiler system | |
| JP2008157731A (en) | Method and apparatus for inspecting clogging of valve shaft | |
| CN216111212U (en) | Pump trial rotation platform | |
| CN209020211U (en) | A kind of off-line detection device for tubular membrane component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |