CN219848609U - Bag type dust collector capable of automatically detecting leakage of pulse valve - Google Patents

Abstract

The utility model relates to a bag type dust collector capable of automatically detecting leakage of a pulse valve, which comprises a bin body, a dust removing system, a detection mechanism and a control system, wherein the bin body is provided with a dust removing chamber, a gas purifying chamber, a first valve and a plurality of filter bags, the first valve is used for opening and closing an air outlet of the gas purifying chamber, the filter bags are used for separating the dust removing chamber and the gas purifying chamber, the dust removing system comprises a gas bag, a plurality of pulse valves and a blowing pipe, a flow detection element is arranged on an air source pipe of the gas bag, the pulse valves are used for opening and closing the gas bag and the blowing pipe, when the detection mechanism detects that the first valve is opened, the corresponding bin body is not in the dust removing process, at the moment, if the flow detection element detects that the flow of air exists, the gas bag has a direct current fault, the leakage of the pulse valve is automatically detected, when the gas bags are connected in parallel, the leakage of the gas bag is controlled to be separated from the air source pipe network, the dust removing effect of other gas bags is blocked, and simultaneously, and the alarm is used for timely maintenance, the waste of the air source is avoided, and the dust removing effect is improved.

Description

Bag type dust collector capable of automatically detecting leakage of pulse valve

Technical Field

The utility model belongs to the field of dust collectors, and particularly relates to a bag type dust collector capable of automatically detecting leakage of a pulse valve.

Background

The bag type dust collector is a dry dust filtering device, which comprises a bin body, a dust removing system and a DCS system, wherein the bin body is provided with a dust removing chamber and a clean air chamber, a plurality of filter bags are arranged in the dust removing chamber, dust-containing air entering the dust removing chamber from an air inlet of the bin body is filtered by the filter bags, dust particles in air flow are filtered by the filter bags and then enter the clean air chamber to be discharged, the dust removing system comprises an air bag, a plurality of pulse valves and a blowing pipe, the air bag is connected with an air source pipeline, the pulse valves are used for opening and closing the air bag and the blowing pipe, the blowing pipe extends into the clean air chamber and is provided with nozzles corresponding to the filter bags, the DCS system can control the pulse valves to start at regular time after dust removing for a period, high-pressure air in the air bag reversely blows the filter bags through the nozzles of the blowing pipe, the filter bags swell and enable dust attached to the surfaces of the filter bags to fall off, the filter bags maintain the filtering function of the whole dust collector, and the dust particles and the dust hopper attached to the lower part of the dust removing chamber are discharged in a concentrated mode, and dust removing operation is realized.

The main defects are as follows: the pulse valve for blowing is usually a film pulse valve, and as equipment is used, a diaphragm in a valve body of a certain pulse valve can be damaged, so that blown gas continuously leaks into a bin body, if leakage problems and overhauling cannot be timely known, air source waste is caused, blowing effect is influenced, pressure difference of a dust remover is increased, and dust removing effect is reduced.

Secondly, when the dust remover includes a plurality of parallelly connected storehouse bodies, ash removal system includes a plurality of parallelly connected air bags that are used for each storehouse body deashing respectively, when the pulse valve diaphragm of certain air bag damages, if can't in time learn leakage problem and block leakage, gas continuously flows into corresponding storehouse body, will cause the pressure of other air bags to reduce, influences the jetting effect of other storehouse bodies, makes the pressure differential of dust remover rise, and the dust removal effect reduces.

Disclosure of Invention

The utility model aims to solve at least one of the technical problems to a certain extent, and provides the bag type dust collector capable of automatically detecting the leakage of the pulse valve, which can automatically detect the leakage fault of the pulse valve and block the ash cleaning influence of the pulse valve on other parallel air bags so as to facilitate timely maintenance, avoid air source waste and improve the dust removing effect.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides an automatic detect pocket type dust remover that pulse valve revealed, includes the storehouse body, ash removal system, detection mechanism and control system, the storehouse body is equipped with clean room, air-purifying chamber, first valve and a plurality of filter bag, the air outlet that first valve was used for opening and close the air-purifying chamber, and dust room and air-purifying chamber are separated to a plurality of filter bags, ash removal system includes air pocket, a plurality of pulse valve and jetting pipe, the air pocket is connected with the air supply pipe, is equipped with flow detection element on the air supply pipe, the pulse valve is used for opening and close the intercommunication of air pocket and jetting pipe, the jetting pipe is equipped with the spout that corresponds the filter bag, detection mechanism is used for detecting that first valve is opened and close, detection mechanism and flow detection element link to each other with control system.

Further, the first valve is a poppet valve, and the poppet valve comprises a cylinder and a valve plate connected with a cylinder rod of the cylinder, and the valve plate can be matched with an air outlet of the clean air chamber.

Further, the detection mechanism comprises a position sensor matched with the air cylinder.

Further, the control system is connected with an alarm.

Further, a second valve is arranged on the air source pipe and is connected with the control system.

Further, the air bags are provided with a plurality of air source pipes, each air source pipe comprises a main pipe and a plurality of branch pipes, the plurality of branch pipes are respectively connected with each air bag and the main pipe, and the second valves are arranged on the branch pipes.

Further, the air bag type air blowing device comprises a plurality of bin bodies, and blowing pipes communicated with a plurality of air bags extend to the inside of each bin body respectively.

Further, the air inlets of the dust removing chambers of the plurality of bin bodies are mutually communicated, and the air inlets of the dust removing chambers are provided with third valves.

Further, the air outlets of the air purifying chambers of the plurality of bin bodies are mutually communicated.

Compared with the prior art, the utility model has the beneficial effects that:

(1) When the detection mechanism detects that the first valve is opened and transmits the first valve to the control system, the corresponding bin body is indicated not to be in the ash removal process, at the moment, if the flow detection element detects that the airflow flow of the air source pipe continuously flows to the air bag exists, the pulse valve of the air bag is in a leakage state, a direct current fault exists, the automatic detection of the leakage of the pulse valve is realized, the alarm can be controlled to give an alarm, so that the ash removal process is convenient to overhaul in time, the waste of the air source is avoided, and the dust removal effect is improved.

(2) When a plurality of air bags are connected in parallel and a plurality of bin bodies are connected in parallel, and the pulse valve of a certain air bag is detected to leak, the control system controls the second valve to cut off the air supply of the air source pipe to the air bag, the air bag is separated from the air source pipe network, the blown air is prevented from continuously flowing into the dust remover, the pressure of the air bag is reduced, and the ash removing effect of other air bags or other bin bodies is affected.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of a front view of an embodiment of the present utility model;

FIG. 2 is a schematic side view of an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of an ash removal system according to an embodiment of the utility model.

The marks in the figure: the dust removal device comprises a bin body 1, a dust removal chamber 101, a clean air chamber 102, an air outlet 103, an air outlet channel 104, a third valve 105, a partition plate 106, a through hole 107 and an air inlet 108;

the ash removal system 2, an air bag 201, a pulse valve 202, a blowing pipe 203, an air source pipe 204, a main pipe 2041, a branch pipe 2042, a flow detection element 205, a nozzle 206 and a second valve 207;

control system 3, filter bag 4, poppet valve 5, cylinder 501, valve plate 502, position sensor 6, alarm 7.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1-3, in a preferred embodiment of a bag-type dust collector for automatically detecting leakage of a pulse valve according to the present utility model, the bag-type dust collector includes a bin body 1, a dust removing system 2, a detecting mechanism and a control system 3, the bin body 1 is provided with a dust removing chamber 101, a clean air chamber 102, a first valve and a plurality of filter bags 4, the first valve is used for opening and closing an air outlet 103 of the clean air chamber 102, the filter bags 4 separate the dust removing chamber 101 from the clean air chamber 102, the dust removing system 2 includes a gas bag 201, a plurality of pulse valves 202 and a blowing pipe 203, the gas bag 201 is connected with a gas source pipe 204, a flow detecting element 205 is provided on the gas source pipe 204, the pulse valve 202 is used for opening and closing communication between the gas bag 201 and the blowing pipe 203, the blowing pipe 203 is provided with a nozzle 206 corresponding to the filter bags 4, the detecting mechanism is used for detecting opening and closing of the first valve, and the detecting mechanism and the flow detecting element 205 are connected with the control system 3.

Further, the first valve is the poppet valve 5, and the poppet valve 5 includes the cylinder 501, the valve plate 502 that links to each other with the jar pole of cylinder 501, valve plate 502 can cooperate with the air outlet 103 of air-purifying chamber 102, and air-purifying chamber 102 can connect air-out passageway 104, and air outlet 103 is located between air-purifying chamber 102 and the air-out passageway 104, before the deashing operation, can drive valve plate 502 through the jar pole of cylinder 501 and descend, the air outlet 103 of closed air-purifying chamber 102 is convenient for jetting deashing operation, after the deashing operation, can drive valve plate 502 through the jar pole of cylinder 501 and rise, opens the air outlet 103 of air inlet chamber, convenient operation.

Further, the detection mechanism comprises a position sensor 6 matched with the air cylinder 501, the position sensor 6 is connected with the control system 3 through a cable, when the air cylinder rod drives the valve plate 502 to ascend, an upper limit signal of the position sensor 6 is triggered and transmitted to the control system 3 to indicate that the bin body 1 is not in the ash cleaning process, when the air cylinder rod drives the valve plate 502 to descend, a lower limit signal of the position sensor 6 is triggered and transmitted to the control system 3 to indicate that the bin body 1 is in the ash cleaning process, so that the detection mechanism is used for realizing the opening and closing detection of the first valve, and further whether the bin body 1 is in the ash cleaning process is known.

Further, the control system 3 is connected with an alarm 7, the alarm 7 is connected with the control system 3 through a cable, the alarm 7 can adopt an SG04-DC24V type alarm 7, and when the pulse valve 202 leaks, the alarm 7 can be controlled by the control system 3 to give an alarm, so that a worker is warned to check faults and overhaul timely.

Further, the air source pipe 204 is provided with a second valve 207, the second valve 207 is connected with the control system 3, the second valve 207 can be an automatic shut-off valve of KQ-25W model, DN50 model or DC24V model, and when the leakage condition of the pulse valve 202 is detected, the control system 3 can control the second valve 207 to shut off the air supply pipe 204 from delivering air to the air bag 201, and the leakage is blocked for maintenance.

Further, the flow detection element 205 and the second valve 207 may also be disposed at the inlet of the blowing pipe 203, so that the flow of the corresponding blowing pipe 203 may be monitored by the flow detection element 205, and when a certain pulse valve 202 leaks, the second valve 207 of the corresponding blowing pipe 203 may be turned off, so as to avoid affecting the operation of other pulse valves 202.

Further, the air bags 201 are provided with a plurality of air source pipes 204, each air source pipe 204 comprises a main pipe 2041 and a plurality of branch pipes 2042, the plurality of branch pipes 2042 are respectively connected with each air bag 201 and the main pipe 2041, the second valves 207 are arranged on the branch pipes 2042, the plurality of air bags 201 are connected in parallel through the main pipe 2041 and the plurality of branch pipes 2042, when the pulse valve 202 of one air bag 201 leaks, the control system 3 can control the second valves 207 on the branch pipes 2042 connected with the air bag 201 to be closed, and air supply to the air bag 201 is cut off, so that blowing and dust removing effects of other air bags 201 are prevented from being influenced.

Further, including a plurality of storehouse bodies 1, the jetting pipe 203 of a plurality of air bags 201 intercommunication extends to each storehouse body 1 inside respectively, because each storehouse body 1 is equipped with an air bag 201 at least, when the pulse valve 202 of a certain air bag 201 leaks, can close the air feed to this air bag 201 through the second valve 207, avoid influencing the jetting deashing effect of other storehouse bodies 1.

Further, the air inlets 108 of the dust removing chambers 101 of the plurality of bin bodies 1 are mutually communicated, the air inlets 108 of the dust removing chambers 101 are provided with the third valves 105, and the parallel connection or the communication cutting-off of the plurality of bin bodies 1 can be realized through the opening and closing of the third valves 105, so that the treatment efficiency and the energy consumption of the bag type dust remover can be flexibly controlled, and the fault maintenance of a bin body 1 under the continuous operation of the dust remover can be conveniently realized.

Further, the air outlets 103 of the clean air chambers 102 of the plurality of bin bodies 1 are mutually communicated, so that clean air can be intensively discharged.

Further, the flow detection element 205 may be a KL12-G12HGPRC flow switch, the pulse valve 202 may be an XFMF-80 pulse blowing valve and a DC24V pulse blowing valve, the control system 3 may be a DCs system, the DCs system may receive signals from the flow detection element 205 and the position sensor 6 by using a 6ES7321-1BH01-0AA0 module, and the DCs system may control the operation of the second valve 207 and the operation of the alarm 7 by using a 6ES7322-1BH01-0AA0 module, which has the advantages of convenient distributed control, economy and reliability.

Further, a partition plate 106 may be disposed between the dust chamber 101 and the clean air chamber 102, a plurality of filter bags 4 are disposed in the dust chamber 101, the upper ends of the filter bags 4 are connected with the partition plate 106, the lower ends of the filter bags 4 are supported in the dust chamber 101, the partition plate 106 is provided with a plurality of through holes 107 corresponding to the filter bags 4, one end of a blowing pipe 203 is connected with an outlet of the pulse valve 202 through a flange, the other end of the blowing pipe 203 extends into the clean air chamber 102, and a nozzle 206 corresponds to the filter bags 4 above the through holes 107.

The dust removing and ash cleaning working principle of the bag type dust remover is as follows: when the turbid air containing dust respectively enters the dust removing chambers 101 of the corresponding bin bodies 1 through the air inlets 108, dust particles are removed through the filter bags 4 for dust removal, clean air entering the filter bags 4 ascends along the inside of the filter bags 4, the clean air enters the air purifying chambers 102 through the through holes 107 of the partition plates 106, the first valve, namely the lifting valve 5, opens the air outlets 103 of the air purifying chambers 102, clean air is discharged from the air outlets 103, when the dust removing operation is performed, the lifting valve 5 closes the air outlets 103 of the air purifying chambers 102, the pulse valve 202 is opened, high-pressure air in the air bag 201 reversely blows the filter bags 4 through the spray nozzles 206 above the through holes 107 of the partition plates 106 along the spray pipes 203, so that deposited dust attached to the surfaces of the filter bags 4 falls off for dust removal, the air permeability of the filter bags 4 is recovered, the filtering function of the whole dust remover is maintained, and dust removed and discharged from the bottom of the dust removing chambers 101 at the same time.

The working principle of the bag filter for automatically detecting the leakage of the pulse valve is as follows:

when the detection mechanism detects that the first valve is opened and transmits the first valve to the control system 3, it indicates that the corresponding bin body 1 is not in the ash removal process, at this time, if the flow detection element 205 detects that there is airflow flow of the air source pipe 204 continuously flowing to the air bag 201, it indicates that a certain pulse valve 202 of the air bag 201 is in a leakage state, and a direct current fault exists, so as to realize automatic detection of leakage of the pulse valve 202, the control system 3 controls the second valve 207 to cut off air supply of the air source pipe 204 to the air bag 201, the air bag 201 is separated from a pipe network of the air source pipe 204, so that the blown air is prevented from continuously flowing into the dust remover, the pressure of the air bag 201 is reduced, the ash removal effect of other air bags 201 or other bin bodies 1 is affected, and meanwhile, the alarm 7 is controlled to signal, and a maintenance person is notified to check the pulse valve 202 on site so as to timely overhaul, avoid air source waste and improve the dust removal effect.

The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.

Claims (9)

1. The utility model provides a bag collector that automated inspection pulse valve revealed, its characterized in that, including the storehouse body (1), deashing system (2), detection mechanism and control system (3), the storehouse body (1) is equipped with dust chamber (101), clean air chamber (102), first valve and a plurality of filter bag (4), first valve is used for opening and close air outlet (103) of clean air chamber (102), and dust chamber (101) and clean air chamber (102) are separated to a plurality of filter bags (4), deashing system (2) include air bag (201), a plurality of pulse valve (202) and jetting pipe (203), air bag (201) are connected with air source pipe (204), are equipped with flow detection component (205) on air source pipe (204), pulse valve (202) are used for opening and close air bag (201) and jetting pipe (203)'s intercommunication, jetting pipe (203) are equipped with spout (206) that correspond filter bag (4), detection mechanism is used for detecting first valve and opens and close, detection mechanism and flow detection component (205) link to each other with control system (3).

2. A bag house for automatic detection of pulse valve leakage according to claim 1, characterized in that the first valve is a poppet valve (5), the poppet valve (5) comprising a cylinder (501), a valve plate (502) connected to the cylinder rod of the cylinder (501), the valve plate (502) being capable of cooperating with the air outlet (103) of the clean air chamber (102).

3. A bag house for automatic detection of pulse valve leaks according to claim 2, characterized in that the detection means comprise a position sensor (6) cooperating with the cylinder (501).

4. A bag house for automatic detection of pulse valve leakage according to claim 1, characterized in that the control system (3) is connected with an alarm (7).

5. A bag house dust collector for automatic detection of pulse valve leakage according to any of the claims 1-4, characterized in that a second valve (207) is arranged on the air supply pipe (204), said second valve (207) being connected to the control system (3).

6. The bag collector for automatically detecting leakage of pulse valves according to claim 5, wherein the number of the air bags (201) is several, the air source pipe (204) comprises a main pipe (2041) and a plurality of branch pipes (2042), the plurality of branch pipes (2042) are respectively connected with each air bag (201) and the main pipe (2041), and the second valve (207) is arranged on the branch pipe (2042).

7. The bag type dust collector for automatically detecting leakage of pulse valve according to claim 6, comprising a plurality of bin bodies (1), wherein the blowing pipes (203) communicated with a plurality of air bags (201) extend to the inside of each bin body (1) respectively.

8. The bag type dust collector for automatically detecting leakage of pulse valve according to claim 7, wherein the air inlets (108) of the dust removing chambers (101) of the plurality of bin bodies (1) are mutually communicated, and the air inlets (108) of the dust removing chambers (101) are provided with a third valve (105).

9. A bag house for automatic detection of pulse valve leakage according to claim 7, characterized in that the outlets (103) of the clean air chambers (102) of several house bodies (1) are interconnected.