CN218107194U - An energy-saving pulse dust collector - Google Patents

Abstract

The utility model discloses an energy-saving pulse dust collector, which relates to the field of dust removal and comprises a casing and a filter bag. The inner and outer walls of the casing are respectively provided with an air inlet pipe and an air outlet pipe. The outer wall of the air duct is provided with a differential pressure gauge, the inside of the housing is provided with a perforated plate, and a load cell is provided at the connection between the top of the perforated plate and the filter bag. In the utility model, the weighing sensor for detecting the weight of the filter bag is installed above the porous plate. When the filter bag needs to be replaced, the filter bag and the weighing sensor are separated, and the filter bag can be lifted out; The outer wall of the air duct is equipped with a differential pressure gauge, and the pressure change of the air inlet and outlet is monitored by the differential pressure gauge. When the pressure change of the air inlet and outlet is large, it indicates that the surface of the filter bag is seriously dusty, that is, when the internal differential pressure changes to a high point, the cleaning The ash cycle starts, and when the differential pressure reaches the low pressure point, the ash cleaning cycle stops, and the load cell realizes more accurate monitoring of the ash accumulation in the filter bag.

Description

An energy-saving pulse dust collector

technical field

The utility model relates to the field of dust removal, in particular to an energy-saving pulse dust collector.

Background technique

The pulse dust collector is a new type of high-efficiency pulse dust collector improved on the basis of the bag filter. It combines the advantages of various pulse-jet dust collectors with separate chamber blowback, and overcomes the shortcomings of insufficient dust cleaning strength in separate chambers and uneven distribution of air in and out. , expanding the scope of application, the dusty gas enters the dust collector from the air inlet, and due to the inertial effect, the coarse dust in the gas directly flows into the ash hopper, and the airflow entering the ash hopper is then folded upwards and passes through the filter bag dust with a metal skeleton inside Trapped on the outer surface of the filter bag, the purified gas enters the upper clean room of the filter bag chamber, collects to the air outlet and is discharged. When the filter bag is cleaned for a long time, the pulse valve is used to spray compressed air to make the filter bag expand rapidly. , the dust on the surface falls off, and a cleaning process is completed.

The Chinese patent with the notification number CN216149249U discloses an energy-saving pulse dust collector, which relates to the technical field of dust removal equipment, including a box body, a filter bag and a fixed plate, and the inside of the box body is fixedly installed with a A fixed plate, the surface of the fixed plate is fixedly connected with a plurality of annular clamping plates, the top of the connecting plate is clamped with the annular clamping plate, the top of the filter bag is provided with a connecting plate, and the annular clamping plate There are grooves on the top surface of both sides of the plate, and a pressure sensor is arranged inside the groove, and the top of the pressure sensor is in contact with the bottom surface of the connecting plate, and the weight of the dust accumulated in the filter bag is monitored by the pressure sensor One-time soot blowing treatment replaces the method of regular soot blowing treatment. When blowing soot, it depends on whether the surface of the filter bag reaches the accumulation of dust, thereby avoiding the frequent opening of the electromagnetic pulse valve due to the setting time, and not only increasing the filter bag. The service life of the bag is reduced, and the use cost is reduced.

In the above technology, the pressure sensor is used to monitor the weight change of the filter bag. After reaching the set amount of dust accumulation, the electromagnetic pulse valve is opened to clean the dust. The filter bag of the pulse dust collector is a vulnerable part, and the user should check the filter bag regularly. According to the working conditions of the filter bag, it is considered to replace it in time according to the degree of damage of the filter bag. However, in this structure, the pressure sensor is installed under the fixing plate, so it will affect the replacement of the filter bag, and it is troublesome to disassemble.

Contents of the invention

Based on this, the purpose of this utility model is to provide an energy-saving pulse dust collector to solve the technical problem that the pressure sensor and the filter bag are located under the fixing plate in the above technology, and the replacement and maintenance are relatively inconvenient.

In order to achieve the above purpose, the utility model provides the following technical solutions: an energy-saving pulse dust collector, including a shell and a filter bag, the inner and outer walls of the shell are respectively provided with an air inlet pipe and an air outlet pipe, and the air inlet The outer wall of the air pipe and the air outlet pipe is provided with a differential pressure gauge, the inside of the housing is provided with a perforated plate, and a load cell is provided at the connection between the top of the perforated plate and the filter bag.

By adopting the above technical solution, the load cell is connected to the top of the porous plate, which will not affect the replacement of the filter bag.

The utility model is further configured that the differential pressure gauge is welded on the surface of the air inlet pipe and the air outlet pipe.

By adopting the above technical solution, the pressure change inside the housing is monitored.

The utility model is further provided that the top of the filter bag is provided with a fixing plate, and the weighing sensor is connected with the filter bag through the fixing plate.

By adopting the above technical solution, the fixing plate facilitates the installation and fixing of the filter bag on the load cell.

The utility model is further configured that the output end of the differential pressure gauge and the output end of the load cell are both electrically connected to the input end of the controller.

By adopting the above technical solution, the load cell monitors the weight of the dust on the surface of the filter bag.

The utility model is further provided that, the bottom of the housing is provided with an ash hopper, and the bottom of the ash hopper is provided with an ash discharge valve.

By adopting the above technical scheme, dust falls into the ash discharge valve from the ash hopper, and can be collected even when the ash discharge valve is opened.

The utility model is further provided that, the surface of the load cell and the fixing plate are both provided with mounting holes, and the mounting holes can be used for bolts to pass through and fix.

By adopting the above technical solution, the mounting holes facilitate the installation and fixation of the load cell and the fixing plate using bolts.

The utility model is further provided that a pulse valve is installed on one side of the housing, a blowing pipe is arranged on one side of the pulse valve, and a plurality of Venturi tubes are arranged on the outer wall of the blowing pipe.

By adopting the above technical scheme, the pulse valve sprays compressed air into the blowing pipe, and accelerates through the Venturi pipe to recoil and clean the filter bag.

In summary, the utility model mainly has the following beneficial effects: the utility model installs the weighing sensor for detecting the weight of the filter bag above the perforated plate, and when the filter bag needs to be replaced, the filter bag and the weighing sensor are separated, Just put out the filter bag, and the load cell is connected to the porous plate, which will not affect the replacement of the filter bag; at the same time, a differential pressure gauge is installed on the outer wall of the air inlet pipe and the air outlet pipe of the device, and the pressure of the air inlet and outlet is monitored through the differential pressure gauge When the pressure of the air inlet and outlet changes greatly, it indicates that the surface of the filter bag is seriously ash, that is, when the internal differential pressure changes to a high pressure point, the ash cleaning cycle starts automatically, and when the differential pressure change reaches a low pressure point, the ash cleaning cycle stops. Cooperating with the load cell to realize more accurate monitoring of the ash on the surface of the filter bag.

Description of drawings

Fig. 1 is the front sectional view of the utility model;

Fig. 2 is the top view of the structural connection between the fixed plate and the load cell of the present invention;

Fig. 3 is a front view of the utility model.

In the figure: 1. shell; 2. air inlet pipe; 3. air outlet pipe; 4. differential pressure gauge; 5. ash hopper; 6. ash discharge valve; 7. porous plate; 8. filter bag; Heavy sensor; 10. Fixed plate; 11. Mounting hole; 12. Pulse valve; 13. Injection pipe; 14. Venturi tube.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

Below according to the overall structure of the utility model, its embodiment is described.

An energy-saving pulse dust collector, as shown in Figure 1-3, includes a housing 1 and a filter bag 8, the inner and outer walls of the housing 1 are respectively provided with an air inlet pipe 2 and an air outlet pipe 3, and the air inlet pipe 2 and the The outer wall of the air outlet pipe 3 is provided with a differential pressure gauge 4, and the outer wall of the air inlet pipe 2 and the air outlet pipe 3 of the device is provided with a differential pressure gauge 4, and the pressure change of the air inlet and outlet is monitored by the differential pressure gauge 4. When the pressure of the air inlet and outlet When the change is large, it indicates that the dust on the surface of the filter bag 8 is serious, that is, when the internal differential pressure changes to a high pressure point, the ash cleaning cycle starts automatically, and when the differential pressure change reaches a low pressure point, the ash cleaning cycle stops, and the load cell 9 is used to realize In order to more accurately monitor the dust on the surface of the filter bag 8, a porous plate 7 is arranged inside the housing 1, and a load cell 9 is arranged at the connection between the top of the porous plate 7 and the filter bag 8 to detect the weight of the filter bag 8. The load cell 9 is installed above the perforated plate 7. When the filter bag 8 needs to be replaced, the filter bag 8 and the load cell 9 are disassembled, and the filter bag 8 is lifted out. The load cell 9 is connected to the perforated plate 7 without It will affect the replacement of filter bag 8.

Please refer to Figure 1. The differential pressure gauge 4 is welded on the surface of the air inlet pipe 2 and the air outlet pipe 3. First, the air inlet pipe 2 and the air outlet pipe 3 are opened, and then the differential pressure gauge 4 is welded to the air inlet pipe. 2 and the surface of the air outlet pipe 3 to monitor the internal pressure change.

Please refer to FIG. 1 , the top of the filter bag 8 is provided with a fixing plate 10 , the load cell 9 is connected with the filter bag 8 through the fixing plate 10 , and the fixing plate 10 facilitates the installation and fixing of the filter bag 8 on the load cell 9 .

Please refer to Fig. 1, the output end of the differential pressure gauge 4 and the output end of the load cell 9 are electrically connected to the input end of the controller, the differential pressure gauge 4 monitors the internal pressure change, and the load cell 9 is connected to the filter bag 8 The dust weight on the surface is monitored, and the data signal is transmitted to the controller, which controls the opening and closing of the pulse valve 12.

Please refer to Figure 1, there is an ash hopper 5 at the bottom of the housing 1, and an ash discharge valve 6 is provided at the bottom of the ash hopper 5, the dust falls from the ash hopper 5 into the ash discharge valve 6, and can be collected by opening the ash discharge valve 6 .

Please refer to Figure 2, the surface of the load cell 9 and the fixing plate 10 are provided with mounting holes 11, the mounting holes 11 can be used for bolts to pass through and fixed, the mounting holes 11 facilitate the use of bolts to install and fix the load cell 9 and the fixing plate 10 .

Please refer to Fig. 1, a pulse valve 12 is installed on one side of the housing 1, a blowing pipe 13 is arranged on one side of the pulse valve 12, and a plurality of Venturi tubes 14 are arranged on the outer wall of the blowing pipe 13, and the pulse valve 12 ejects compressed air Into the blowing pipe 13, through the Venturi pipe 14 to accelerate the backflushing of the filter bag 8 to clean the dust.

The working principle of the utility model is: the dust-laden air enters the shell 1 from the air inlet pipe 2, and some large particles of dust directly settle into the ash hopper 5, and the filter bag 8 filters the remaining particles in the air, and the filtered air It is discharged from the air outlet pipe 3, and after a period of filtration, the pulse valve 12 is activated, and the compressed air is sprayed into the blowing pipe 13, and the filter bag 8 is recoiled and dust-cleaned through the Venturi pipe 14 to accelerate;

The outer wall of the air inlet pipe 2 and the air outlet pipe 3 is equipped with a differential pressure gauge 4, and the pressure change of the air inlet and outlet is monitored through the differential pressure gauge 4. When the pressure change of the air inlet and outlet is large, it indicates that the surface of the filter bag 8 is seriously dusty, that is, when the internal When the differential pressure change reaches the high pressure point, the controller receives the signal, the pulse valve 12 starts, and the dust cleaning cycle starts automatically. For more accurate monitoring of the surface area of dust, the load cell 9 for detecting the weight of the filter bag 8 is installed above the porous plate 7. When the filter bag 8 needs to be replaced, the filter bag 8 and the load cell 9 are disassembled, and the filter bag 8 is lifted out. That is, the load cell 9 is connected to the porous plate 7 , which will not affect the replacement of the filter bag 8 .

Although the embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model, and the specific features, structures, materials or characteristics described can be used in any Or multiple embodiments or examples are combined in a suitable manner, and those skilled in the art can make no creative contributions to the embodiments as required without departing from the principle and purpose of the utility model after reading this specification Amendments, replacements and variations, etc., but as long as they are within the scope of the claims of the utility model, they are all protected by the patent law.

Claims (7)

1. The utility model provides an energy-saving pulse dust collector, includes casing (1) and filter bag (8), its characterized in that: the inside outer wall of casing (1) is provided with air-supply line (2) and goes out tuber pipe (3) respectively, air-supply line (2) run through with the outer wall that goes out tuber pipe (3) and be provided with differential pressure gauge (4), the inside of casing (1) is provided with perforated plate (7), the top of perforated plate (7) is provided with weighing sensor (9) with the junction of filter bag (8).

2. An energy saving pulse dust collector as claimed in claim 1, wherein: the differential pressure gauge (4) is welded on the surfaces of the air inlet pipe (2) and the air outlet pipe (3).

3. An energy saving pulse dust collector as claimed in claim 1, wherein: the top of the filter bag (8) is provided with a fixing plate (10), and the weighing sensor (9) is connected with the filter bag (8) through the fixing plate (10).

4. An energy saving pulse dust collector as claimed in claim 1, wherein: the output end of the differential pressure gauge (4) and the output end of the weighing sensor (9) are electrically connected with the input end of the controller.

5. An energy saving pulse dust collector as claimed in claim 1, wherein: an ash bucket (5) is arranged at the bottom of the shell (1), and an ash discharge valve (6) is arranged at the bottom of the ash bucket (5).

6. An energy saving pulse dust collector as claimed in claim 3, wherein: the surfaces of the weighing sensor (9) and the fixing plate (10) are provided with mounting holes (11), and the mounting holes (11) can be used for bolts to penetrate through and fix.

7. An energy saving pulse dust collector as claimed in claim 1, wherein: a pulse valve (12) is installed on one side of the shell (1), an injection pipe (13) is arranged on one side of the pulse valve (12), and a plurality of Venturi tubes (14) are arranged on the outer wall of the injection pipe (13).

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