CN219349404U - Ash bucket material level control device based on pressure measurement - Google Patents
Ash bucket material level control device based on pressure measurement Download PDFInfo
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- CN219349404U CN219349404U CN202320550578.9U CN202320550578U CN219349404U CN 219349404 U CN219349404 U CN 219349404U CN 202320550578 U CN202320550578 U CN 202320550578U CN 219349404 U CN219349404 U CN 219349404U
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- ash bucket
- level switch
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Abstract
The utility model is mainly applied to the technical field of ash bucket material level switches, and particularly relates to a pressure measurement-based ash bucket material level control device, which comprises an air storage tank, wherein an inlet of the air storage tank is communicated with a compressed air pipe, an outlet of the air storage tank is communicated with two vent pipes, pressure reducing valves and switch valves are sequentially arranged on the two vent pipes according to the air flowing direction, connecting pipes are arranged at the tail ends of the two vent pipes and are respectively communicated with an ash bucket, a high material level switch pressure transmitter is arranged between the connecting pipe of one vent pipe and the switch valve, a low material level switch pressure transmitter is arranged between the connecting pipe of the other vent pipe and the switch valve, the high material level switch pressure transmitter and the low material level switch pressure transmitter are respectively connected with corresponding controllers, and the controllers are respectively connected with an ash unloading valve. The utility model detects the change of the material level by utilizing the change of the pressure value, and has the advantages of simple structure, low cost, simple principle and few fault points. The defect of false alarm caused by poor material hanging resistance of the existing material level switch is overcome, and the accuracy is high.
Description
Technical Field
The utility model relates to a pressure measurement-based ash bucket material level control device, which is mainly applied to the technical field of ash bucket material level switches.
Background
The dust remover is a widely used flue gas dust removal device, no matter the dust remover is a cloth bag dust remover or an electric dust remover, the dust needs to be removed at fixed time, dust falls into an ash bucket below the dust remover, when the ash height in the ash bucket reaches a high material level, an ash discharge valve below the ash bucket is opened, an ash conveying system is started, a common material level switch is provided with a rotation resistance material level switch, a tuning fork material level switch, a capacitance material level switch, a radio frequency admittance material level switch and the like, the conventional material level switch is poor in material hanging resistance, a false alarm phenomenon is caused, the inaccurate material level switch often causes excessive ash deposition of the ash bucket, and safety accidents such as ash bucket falling are caused.
Disclosure of Invention
The utility model aims to solve the technical problems that: the ash bucket material level control device based on pressure measurement is low in cost, few in fault points and high in measurement accuracy.
The utility model relates to a pressure measurement-based ash bucket material level control device, which comprises an ash bucket, an ash unloading valve at the lower part of the ash bucket, a gas storage tank, a compressed air pipe, a gas storage tank outlet, a pressure reducing valve, a switching valve, a connecting pipe, a low material level switching pressure transmitter, a controller and an ash unloading valve, wherein the gas storage tank inlet is communicated with the compressed air pipe, the gas storage tank outlet is communicated with the two vent pipes, the pressure reducing valve and the switching valve are sequentially arranged on the two vent pipes according to the gas flowing direction, the connecting pipes are respectively arranged at the tail ends of the two vent pipes and are respectively communicated with the ash bucket, the high material level switching pressure transmitter is arranged between the connecting pipe of one vent pipe and the switching valve, the low material level switching pressure transmitter is arranged between the connecting pipe of the other vent pipe and the switching valve, the high material level switching pressure transmitter and the low material level switching pressure transmitter are respectively connected with the corresponding controllers, and the controllers are respectively connected with the ash unloading valve.
The connecting pipe is arranged as a metal short pipe, and the vent pipe is connected with the metal short pipe by adopting threads.
The controller connected with the high-material-level switch pressure transmitter adopts a high-material-level switch pressure controller which is connected with the ash discharge valve.
The controller connected with the low material level switch pressure transmitter adopts a low material level switch pressure controller which is connected with the ash discharge valve.
The measuring ranges of the high material level switch pressure transmitter and the low material level switch pressure transmitter are 0 Kpa-20 Kpa.
The high material level switch pressure transmitter and the low material level switch pressure transmitter are both arranged close to the connecting pipe.
The ash bucket is internally provided with a high material level line and a low material level line.
The connecting pipe of the vent pipe where the high material level switch pressure transmitter is located is arranged corresponding to the high material level line of the ash bucket.
The connecting pipe of the vent pipe where the low material level switch pressure transmitter is located is arranged corresponding to the low material level line of the ash bucket.
The connecting pipes are welded on the ash bucket at positions corresponding to the high material level line and the low material level line respectively, and the ash bucket is provided with mounting through holes corresponding to the two connecting pipes respectively.
The pressure transmitter is connected with the pressure controller, the pressure controller is connected with the ash discharge valve, the pressure transmitter transmits the detection result to the pressure controller in a signal form, and the pressure transmitter triggers the setting condition to enable the ash discharge valve to be opened or closed. Compressed air of 0.5-0.8Mpa enters the air storage tank through the compressed air pipe to be buffered, the compressed air at the outlet of the air storage tank firstly passes through the pressure reducing valve to adjust the pressure value, then enters the ash bucket through the switch valve, when the material level in the ash bucket does not reach the set material level height, the pressure is released after the compressed air enters the ash bucket, the pressure measured by the pressure transmitter is lower, when the material level in the ash bucket reaches the set material level height, the compressed air enters the ash bucket through the vent pipe to generate pressure holding, and the pressure value of the pressure transmitter is increased instantaneously. When the material level in the ash bucket reaches a high material level line, the pressure of the high material level switch pressure transmitter is increased instantaneously, the high material level switch pressure transmitter transmits a detection signal to the high material level switch pressure controller, a set condition is triggered, and the ash discharge valve is opened for ash conveying. When the material level in the ash bucket is lower than the low material level line, the pressure transmitter of the low material level switch instantaneously releases pressure, the pressure transmitter of the low material level switch transmits a detection signal to the pressure controller of the low material level switch, a set condition is triggered, and the ash discharge valve is closed to stop ash discharge.
The beneficial effects of the utility model are as follows:
the utility model detects the change of the material level by utilizing the change of the pressure value, and has the advantages of simple structure, low cost, simple principle and few fault points. The defect of false alarm caused by poor material hanging resistance of the existing material level switch is overcome, and the accuracy is high.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure: 1. an ash bucket; 2. a high level line; 3. a low level line; 4. a connecting pipe; 5. a high level switch pressure transmitter; 6. a vent pipe; 7. a switch valve; 8. a pressure reducing valve; 9. a gas storage tank; 10. a compressed air tube; 11. a high level switch pressure controller; 12. an ash discharge valve; 13. a low level switch pressure controller; 14. a low level switch pressure transmitter.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in fig. 1, the ash bucket material level control device based on pressure measurement comprises an ash bucket 1, an ash unloading valve 12 at the lower part of the ash bucket 1, an air storage tank 9, a compressed air pipe 10, two vent pipes 6, a pressure reducing valve 8 and a switch valve 7, which are sequentially arranged on the two vent pipes 6 according to the air flowing direction, wherein a connecting pipe 4 is arranged at the tail end of the two vent pipes 6, the connecting pipe 4 is respectively communicated with the ash bucket 1, a high material level switch pressure transmitter 5 is arranged between the connecting pipe 4 of one vent pipe 6 and the switch valve 7, a low material level switch pressure transmitter 14 is arranged between the connecting pipe 4 of the other vent pipe 6 and the switch valve 7, the high material level switch pressure transmitter 5 and the low material level switch pressure transmitter 14 are respectively connected with corresponding controllers, and the controllers are respectively connected with the ash unloading valve 12. The connecting pipe 4 is a metal short pipe, and the vent pipe 6 is connected with the metal short pipe by adopting threads. The controller connected with the high material level switch pressure transmitter 5 adopts a high material level switch pressure controller 11, and the high material level switch pressure controller 11 is connected with an ash discharge valve 12. The controller connected with the low material level switch pressure transmitter 14 adopts a low material level switch pressure controller 13, and the low material level switch pressure controller 13 is connected with the ash discharge valve 12. The measuring ranges of the high material level switch pressure transmitter 5 and the low material level switch pressure transmitter 14 are 0 Kpa-20 Kpa. Both the high level switch pressure transmitter 5 and the low level switch pressure transmitter 14 are arranged close to the connecting pipe 4. A high level line 2 and a low level line 3 are arranged in the ash bucket 1. The connecting pipe 4 of the ventilating pipe 6 where the high level switch pressure transmitter 5 is located is arranged corresponding to the high level line 2 of the ash bucket 1. The connecting pipe 4 of the ventilating pipe 6 where the low level switch pressure transmitter 14 is located is arranged corresponding to the low level line 3 of the ash bucket 1. The connecting pipes 4 are welded on the ash bucket 1 at positions corresponding to the high material level line 2 and the low material level line 3 respectively, and the ash bucket 1 is provided with mounting through holes corresponding to the two connecting pipes 4 respectively.
The pressure transmitter is connected with a pressure controller, the pressure controller is connected with the ash discharge valve 12, the pressure transmitter transmits the detection result to the pressure controller in the form of a signal, and the pressure transmitter triggers a set condition to enable the ash discharge valve 12 to be opened or closed. Compressed air of 0.5-0.8Mpa enters the air storage tank 9 through the compressed air pipe 10 to be buffered, the compressed air at the outlet of the air storage tank 9 firstly passes through the pressure reducing valve 8 to adjust the pressure value, then enters the ash bucket 1 through the switch valve 7, when the material level in the ash bucket 1 does not reach the set material level height, the pressure is released after the compressed air enters the ash bucket 1, the pressure measured by the pressure transmitter is lower, when the material level in the ash bucket 1 reaches the set material level height, the compressed air enters the ash bucket 1 through the air pipe 6 to generate pressure holding, and the pressure value of the pressure transmitter is instantaneously increased. When the material level in the ash bucket 1 reaches the high material level line 2, the pressure of the high material level switch pressure transmitter 5 is increased instantaneously, the high material level switch pressure transmitter 5 transmits a detection signal to the high material level switch pressure controller 11, a set condition is triggered, and the ash discharge valve 12 is opened for ash conveying. When the material level in the ash bucket 1 is lower than the low material level line 3, the low material level switch pressure transmitter 14 releases pressure instantaneously, the low material level switch pressure transmitter 14 transmits a detection signal to the low material level switch pressure controller 13, a set condition is triggered, and the ash discharge valve 12 is closed to stop ash discharge.
Claims (10)
1. The utility model provides an ash bucket material level controlling means based on pressure measurement, includes ash bucket (1) and ash bucket (1) bottom's unloading valve (12), its characterized in that: still include gas holder (9), gas holder (9) entry intercommunication compressed air pipe (10), gas holder (9) export intercommunication two breather pipes (6), all be equipped with relief pressure valve (8) and ooff valve (7) on two breather pipes (6) in proper order according to the gas circulation direction, two breather pipe (6) end all are equipped with connecting pipe (4), connecting pipe (4) communicate ash bucket (1) respectively, set up high material level switch pressure transmitter (5) between connecting pipe (4) and ooff valve (7) of one breather pipe (6), set up low material level switch pressure transmitter (14) between connecting pipe (4) and ooff valve (7) of another breather pipe (6), corresponding pressure controller is connected respectively to high material level switch pressure transmitter (5) and low material level switch pressure transmitter (14), pressure controller connects ash discharging valve (12) respectively.
2. The ash bucket level control device based on pressure measurement of claim 1, wherein: the connecting pipe (4) is a metal short pipe, and the vent pipe (6) is connected with the connecting pipe (4) by adopting threads.
3. The ash bucket level control device based on pressure measurement of claim 1, wherein: the pressure controller connected with the high material level switch pressure transmitter (5) adopts a high material level switch pressure controller (11), and the high material level switch pressure controller (11) is connected with an ash discharge valve (12).
4. The ash bucket level control device based on pressure measurement of claim 1, wherein: the pressure controller connected with the low material level switch pressure transmitter (14) adopts a low material level switch pressure controller (13), and the low material level switch pressure controller (13) is connected with the ash discharge valve (12).
5. The ash bucket level control device based on pressure measurement of claim 1, wherein: the measuring ranges of the high material level switch pressure transmitter (5) and the low material level switch pressure transmitter (14) are 0 Kpa-20 Kpa.
6. The ash bucket level control device based on pressure measurement of claim 1, wherein: the high material level switch pressure transmitter (5) and the low material level switch pressure transmitter (14) are both arranged close to the connecting pipe (4).
7. The ash bucket level control device based on pressure measurement of claim 1, wherein: a high material level line (2) and a low material level line (3) are arranged in the ash bucket (1).
8. The ash bucket level control device based on pressure measurement of claim 7, wherein: the connecting pipe (4) of the vent pipe (6) where the high level switch pressure transmitter (5) is located is arranged corresponding to the high level line (2) of the ash bucket (1).
9. The ash bucket level control device based on pressure measurement of claim 7, wherein: the connecting pipe (4) of the vent pipe (6) where the low level switch pressure transmitter (14) is located is arranged corresponding to the low level line (3) of the ash bucket (1).
10. The ash bucket level control device based on pressure measurement of claim 7, wherein: the connecting pipes (4) are welded on the ash bucket (1) at positions corresponding to the high material level line (2) and the low material level line (3) respectively, and the ash bucket (1) is provided with mounting through holes corresponding to the two connecting pipes (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320550578.9U CN219349404U (en) | 2023-03-16 | 2023-03-16 | Ash bucket material level control device based on pressure measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320550578.9U CN219349404U (en) | 2023-03-16 | 2023-03-16 | Ash bucket material level control device based on pressure measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219349404U true CN219349404U (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320550578.9U Active CN219349404U (en) | 2023-03-16 | 2023-03-16 | Ash bucket material level control device based on pressure measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219349404U (en) |
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2023
- 2023-03-16 CN CN202320550578.9U patent/CN219349404U/en active Active
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