CN113203560B - Quick positioning device and method for damaged diaphragm of tandem pulse valve - Google Patents
Quick positioning device and method for damaged diaphragm of tandem pulse valve Download PDFInfo
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- CN113203560B CN113203560B CN202110303678.7A CN202110303678A CN113203560B CN 113203560 B CN113203560 B CN 113203560B CN 202110303678 A CN202110303678 A CN 202110303678A CN 113203560 B CN113203560 B CN 113203560B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a quick positioning device for a damaged diaphragm of a tandem pulse valve, which comprises a single-bin troubleshooting valve, a pressure gauge, a measuring main pipe and a plurality of diaphragm troubleshooting valves, wherein the single-bin troubleshooting valve corresponds to each bin of a bag-type dust collector, the single-bin troubleshooting valve is arranged on an air inlet pipe of a pressure gas container of the pulse valve arranged in the corresponding bin, an air pressure measuring port of the pressure gauge is communicated with the measuring main pipe, one end of each diaphragm troubleshooting valve is connected with the measuring main pipe, and the other end of each diaphragm troubleshooting valve is respectively communicated with a jetting pipe connected with the lower end of each pulse valve of the bin through a connecting pipe. The invention also provides a method for quickly positioning the damaged diaphragm. The invention judges whether each single bin has a fault pulse valve by cutting off pressure gas, and then judges which pulse valve in the single bin has a diaphragm fault by utilizing the pressure gauge. The pulse valve does not need to be disassembled and inspected in the whole searching process, the operation is simple and convenient, the overhauling efficiency of the bag-type dust remover can be effectively improved, and the labor intensity of maintenance personnel is reduced.
Description
Technical Field
The invention relates to a device and a method capable of quickly searching for damaged diaphragms of a tandem pulse valve of a bag-type dust collector, and belongs to the technical field of separation.
Background
The existing bag-type dust collector, especially the dust collector with large single-bin filtering area, is often provided with a large number of single-bin bags in a multi-row arrangement, and each row of bags is provided with a pulse injection valve (pulse valve for short) for injecting the bags. Typically all of the impulse valves of a single chamber will be placed on the same pressure gas vessel. The pulse valve sets the blowing pressure and frequency according to the actual working condition. The pulse valve is easier to break down when the blowing pressure and frequency are higher, and the faults are mainly concentrated on the diaphragm of the pulse valve according to the use experience. Once the diaphragm is damaged to cause pressure gas leakage, the whole blowing system of the bag-type dust remover fails.
During maintenance and repair, in order to determine the position of a failed valve, the following two operation steps are required: 1. judging which single bin the fault pulse valve is in; 2. and judging which specific pulse valve in the single bin with the fault pulse valve has the membrane fault. The existing fault finding method has the defects that the pulse valve is required to be disassembled and inspected, the operation is very complicated, the equipment maintenance efficiency is greatly reduced, and the labor intensity of maintenance personnel is increased. Especially, under the condition that a plurality of dust collectors with a plurality of bins and a plurality of pulse valves arranged in a single bin are provided, fault positioning is very difficult, so that a simple and efficient fault valve searching method is very necessary.
Disclosure of Invention
The invention aims to provide a quick positioning device for a damaged diaphragm of a tandem pulse valve, aiming at overcoming the defects of the prior art, so as to improve the maintenance efficiency of a bag-type dust remover and reduce the labor intensity of maintenance personnel.
In order to achieve the purpose, the invention adopts the following technical scheme:
the quick positioning device comprises a single-bin troubleshooting valve, a pressure gauge, a measuring header pipe and a plurality of diaphragm troubleshooting valves, wherein the single-bin troubleshooting valve corresponds to each bin of a bag-type dust collector, the single-bin troubleshooting valve is installed on an air inlet pipe of a pressure gas container of the pulse valve installed in the corresponding bin, an air pressure measuring port of the pressure gauge is communicated with the measuring header pipe, one end of each diaphragm troubleshooting valve is connected with the measuring header pipe, and the other end of each diaphragm troubleshooting valve is communicated with a blowing pipe connected with the lower end of each pulse valve of the bin through a connecting pipe.
According to the quick positioning device for the damaged diaphragm of the tandem pulse valve, the connecting pipe is L-shaped, one end of the connecting pipe is connected with the measuring main pipe, and the other end of the connecting pipe is located in the blowing pipe connected with the lower end of the pulse valve and is opposite to the diaphragm of the pulse valve.
The quick positioning device for the damaged diaphragm of the parallel pulse valve is characterized in that the diaphragm fault check valve is a stop valve.
The quick positioning device for the damaged diaphragm of the multi-row pulse valve is characterized in that the single-bin troubleshooting valve is a stop valve.
A method for rapidly positioning a damaged diaphragm of a tandem pulse valve by using the rapid positioning device for the damaged diaphragm of the tandem pulse valve comprises the following steps:
a. in the operation process of the bag-type dust collector, closing and opening the single-bin troubleshooting valves corresponding to the bins one by one, and if the blowing function of the failure blowing system is recovered after closing a certain single-bin troubleshooting valve, judging that the bin has a fault valve with a damaged diaphragm; otherwise, judging that the bin has no fault valve with damaged diaphragm, and finding out the bin with the fault valve.
b. And sequentially opening and closing each diaphragm troubleshooting valve aiming at the bin with the fault valve, simultaneously observing the change condition of a pressure gauge pointer, judging that the pulse valve corresponding to the diaphragm troubleshooting valve has no fault if the pressure gauge pointer does not change when a certain diaphragm troubleshooting valve is opened, and otherwise, judging that the pulse valve diaphragm corresponding to the diaphragm troubleshooting valve is damaged, thereby realizing the quick positioning of the damaged diaphragm.
In the method for quickly positioning the damaged diaphragm of the tandem pulse valve, the off-line valve at the front end of the chamber needs to be closed in the step b.
The invention judges whether each single bin has a fault pulse valve by cutting off pressure gas, and then judges which pulse valve in the single bin with the fault pulse valve has a diaphragm fault by using the pressure gauge. The pulse valve does not need to be disassembled and inspected in the whole searching process, the operation is simple and convenient, the overhauling efficiency of the bag-type dust remover can be effectively improved, and the labor intensity of maintenance personnel is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of the installation of the damaged membrane rapid positioning device of the present invention in a single-bin pulse blowing system of a bag-type dust collector;
fig. 2 is a side view of fig. 1.
The reference numbers in the figures are: 1. a single bin troubleshooting valve; 2. a pressurized gas container; 3. a pulse valve; 4. a membrane; 5. a leakage pressure gas flow; 6. breaking the membrane; 7. a pressure gauge; 8. a connecting pipe; 9. a blowing pipe; 10. a measurement header pipe; 11. a diaphragm troubleshooting valve.
Detailed Description
The invention provides a quick positioning device and a quick positioning method capable of arranging damaged diaphragms of a pulse valve in a row, and the maintenance efficiency of a blowing pulse valve of a bag-type dust remover can be improved.
Referring to fig. 1, the device for rapidly searching damaged diaphragms of the tandem pulse valve mainly comprises a single-bin troubleshooting valve 1, a pressure gauge 7, a connecting pipe 8, a measuring main pipe 10 and a diaphragm troubleshooting valve 11.
A single-bin troubleshooting valve 1 is installed in front of a pressure gas container 2 of a pulse valve installed in each bin of a dust remover, a connecting pipe 8 is additionally installed on a blowing pipe 9 connected with the lower end of each pulse valve 3 of the single bin, each connecting pipe 8 is connected to a measuring main pipe 10 through a diaphragm troubleshooting valve 11, and a pressure gauge 7 is installed on the measuring main pipe 10.
The single-bin troubleshooting valve 1 and the diaphragm troubleshooting valve 11 both adopt stop valves capable of effectively intercepting pressure gas. The connecting pipe 8 is L-shaped, so that the pressure gas leaked from the damaged diaphragm 6 can be better received. The pressure gauge 7 is a pressure gauge with small measuring range and high sensitivity according to the actual working condition. All connections are tightly sealed.
In the actual maintenance and repair process, when the pulse valve diaphragm is damaged, the position of the damaged diaphragm of the parallel-row pulse valve is quickly searched by adopting the following steps:
step 1: and closing and opening the single-bin fault check valves 1 in front of the pressure gas containers one by one, and judging whether the single bin has a fault pulse valve or not by cutting off the pressure gas. For example, after closing the single-bin troubleshooting valve 1 in front of the pressure gas container of the first bin, if the pressure gas stops leaking and the blowing function of the blowing system is recovered, it is determined that a fault valve with a damaged diaphragm exists in the first bin; if the pressure gas continuously leaks and the blowing system is still invalid, the first bin does not have a fault valve with a damaged diaphragm, the second bin is continuously operated at the moment, and the bins with the fault valves can be found out through sequential checking.
Step 2: and (3) sequentially opening and closing the diaphragm troubleshooting valve 11 on the L-shaped connecting pipe 8 aiming at the bin with the fault valve, and observing the change of the pointer of the pressure gauge 7. If the diaphragm troubleshooting valve on the L-shaped connecting pipe 8 below the first pulse valve is opened, the pointer of the pressure gauge is unchanged, the first pulse valve is indicated to be free of faults, the diaphragm troubleshooting valve is closed to continue to operate the second pulse valve, the sequential troubleshooting is carried out, if a certain pulse valve diaphragm is damaged, the L-shaped connecting pipe on the injection pipe below the certain pulse valve inevitably receives pressure gas leaked through the damaged diaphragm, the pointer of the pressure gauge is changed, the position of the faulty pulse valve can be rapidly determined, and then the faulty pulse valve is pertinently disassembled and inspected. In the step 2, an off-line valve at the front end of the bin needs to be closed, and the negative pressure suction of the dust removal system is cut off, so that the influence of the negative pressure suction of the system on the pointer change of the pressure gauge is avoided.
The device for searching the damaged membrane has the advantages of simple structure, good actual use effect and low modification cost of the conventional bag-type dust collector. The maintenance efficiency of the dust removing equipment is greatly improved, the long-time failure of a jetting system caused by the leakage of jetting pressure gas due to the damage of a pulse valve diaphragm of the bag-type dust remover is avoided, and therefore the cloth bag can be effectively prevented from being hardened.
Claims (6)
1. The utility model provides a quick positioner of damaged diaphragm of allies oneself with row pulse valve, characterized by includes single storehouse troubleshooting valve (1), manometer (7), survey house steward (10) and a plurality of diaphragm troubleshooting valve (11) corresponding with every bin of sack cleaner, single storehouse troubleshooting valve (1) is installed on the intake pipe of the pressure gas container (2) that corresponds bin installation pulse valve (3), the atmospheric pressure measurement mouth and the survey house steward (10) intercommunication of manometer (7), and the one end and the survey house steward (10) of a plurality of diaphragm troubleshooting valves (11) are connected, and the other end passes through connecting pipe (8) respectively with the jetting pipe (9) intercommunication that each pulse valve (3) lower extreme of bin linked.
2. A device for the rapid positioning of a damaged diaphragm of a tandem pulse valve according to claim 1, wherein the connecting pipe (8) is L-shaped, one end of which is connected to the measuring manifold (10) and the other end of which is located in the blowing pipe (9) connected to the lower end of the pulse valve (3) and is opposite to the diaphragm (4) of the pulse valve (3).
3. A device for rapidly positioning a broken diaphragm of a tandem pulse valve according to claim 2, wherein the diaphragm troubleshooting valve (11) is a stop valve.
4. A device for rapidly positioning a damaged diaphragm of a tandem pulse valve according to claim 3, wherein the single-bin troubleshooting valve (1) is a stop valve.
5. A method for rapidly positioning a damaged diaphragm of a tandem pulse valve by using the rapid positioning device for the damaged diaphragm of the tandem pulse valve as claimed in any one of claims 1 to 4, wherein the method comprises the following steps:
a. in the operation process of the bag-type dust collector, closing and opening the single-bin troubleshooting valves (1) corresponding to the bins one by one, and if the blowing function of the failure blowing system is recovered after closing a certain single-bin troubleshooting valve (1), judging that the bin has a fault valve with a damaged diaphragm; otherwise, judging that the failure valve with the damaged diaphragm does not exist in the bin, and finding out the bin with the failure valve;
b. and sequentially opening and closing each diaphragm troubleshooting valve (11) aiming at the bin with the fault valve, and simultaneously observing the change condition of a pointer of a pressure gauge (7), if the pointer of the pressure gauge (7) is unchanged when a certain diaphragm troubleshooting valve (11) is opened, judging that a pulse valve (3) corresponding to the diaphragm troubleshooting valve (11) has no fault, otherwise, judging that the diaphragm of the pulse valve (3) corresponding to the diaphragm troubleshooting valve (11) is damaged, thereby realizing the quick positioning of the damaged diaphragm.
6. The method of claim 5 wherein step b is performed by closing an off-line valve at the front end of the chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110303678.7A CN113203560B (en) | 2021-03-22 | 2021-03-22 | Quick positioning device and method for damaged diaphragm of tandem pulse valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110303678.7A CN113203560B (en) | 2021-03-22 | 2021-03-22 | Quick positioning device and method for damaged diaphragm of tandem pulse valve |
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| CN113203560A CN113203560A (en) | 2021-08-03 |
| CN113203560B true CN113203560B (en) | 2022-05-24 |
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| CN202110303678.7A Active CN113203560B (en) | 2021-03-22 | 2021-03-22 | Quick positioning device and method for damaged diaphragm of tandem pulse valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114602251A (en) * | 2022-03-11 | 2022-06-10 | 邢台钢铁有限责任公司 | Rapid diagnosis method for bag damage fault of bag type dust collector |
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| EP0020949A1 (en) * | 1979-06-22 | 1981-01-07 | Mannesmann Demag AG | Device for the control of the closing and opening functions of membrane valves, especially of membrane valves located behind a compressed air container in impulse conduits for purification of dust removal devices |
| CN103743528A (en) * | 2013-11-12 | 2014-04-23 | 宝钢集团新疆八一钢铁有限公司 | Device for prolonging service life of cloth bag through leak detector |
| CN205007757U (en) * | 2015-10-12 | 2016-02-03 | 宝钢磁业（江苏）有限公司 | Can improve sack cleaner of pulse speed of overhauing |
| CN110124403A (en) * | 2019-06-13 | 2019-08-16 | 苏州协昌环保科技股份有限公司 | Pulse bag type dust collector broken bag intelligent detecting method |
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2021
- 2021-03-22 CN CN202110303678.7A patent/CN113203560B/en active Active
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|---|---|---|---|---|
| EP0020949A1 (en) * | 1979-06-22 | 1981-01-07 | Mannesmann Demag AG | Device for the control of the closing and opening functions of membrane valves, especially of membrane valves located behind a compressed air container in impulse conduits for purification of dust removal devices |
| CN103743528A (en) * | 2013-11-12 | 2014-04-23 | 宝钢集团新疆八一钢铁有限公司 | Device for prolonging service life of cloth bag through leak detector |
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