Automatic drainage device for blowing compressed air of electric bag dust collector

Abstract

The utility model discloses an automatic drainage device for blowing compressed air of an electric-bag dust collector, and particularly relates to the technical field of electric-bag dust collectors, which comprises a buffer box consisting of an upper box body and a lower box body, the upper box body is positioned at the top of the lower box body, a water inlet pipe is arranged on the surface of the upper box body in a penetrating manner, and a water outlet pipe is arranged on the surface of the lower box body. A drainage pipe penetrates through the surface of the lower box body, a connecting rod is arranged on the inner wall of the lower box body, a sleeve is arranged at one end of the connecting rod, a sleeve rod is slidably arranged in the sleeve, a conical sealing block is arranged at the bottom of the sleeve rod, a suspension ball is arranged at the top end of the sleeve rod, and a filtering ring is arranged at the joint of the sleeve and the sleeve rod. According to the utility model, condensed water of compressed air in the air collecting bag can be automatically removed, and in the drainage process, the phenomena of abrasion and blockage caused by sliding of the sleeve rod in the sleeve can be avoided, so that the drainage effect is improved, the use stability of the device is ensured, the service life is prolonged, and the maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electric bag dust collectors, and more specifically, the utility model relates to an automatic drainage device for compressed air injection of an electric bag dust collector. Background Art

[0002] An electric bag dust collector is a new type of high-efficiency dust collector that combines the technologies of an electrostatic precipitator and a bag filter, which can improve the removal effect of fine dust.

[0003] During the dust cleaning stage of an electric bag dust collector, it is necessary to use a pulse valve to control the injection of compressed air to shake off the dust accumulated on the outer surface of the filter bag and restore the normal filtering function of the cloth bag. Large dust collectors often have dozens or even hundreds of pulse valves. Generally, these pulse valves are arranged on the air collection tank at the top of the dust collector. Since there is inevitably a little moisture in the compressed air, it accumulates at the bottom of the air collection tank.

[0004] The existing technology is to install a manual drain valve at the bottom of the air collection tank for manual drainage. If the drainage is not timely, it will cause liquid water to be sprayed into the cloth bag through the pulse valve from the air collection tank, resulting in the hardening of the cloth bag and the loss of the filtering effect. However, in general factories, there are many dust collectors, and the air collection tank is at a high altitude, so manual drainage is time-consuming and laborious, with low efficiency.

[0005] After retrieval, a Chinese patent with the authorization announcement number CN217613693U discloses an automatic drainage device for the air collection tank of a dust collector. This structure utilizes the rise of the water level inside the shell to drive the floating ball to drive the sealing part and the sealing surface to rise, opening the outlet to achieve the purpose of automatically draining the condensed water of the compressed air in the air collection tank.

[0006] However, during actual use of this structure, there will inevitably be a certain amount of impurity particles in the liquid in the buffer tank. When the connecting rod slides inside the through hole provided by the bracket, the impurities in the water will enter the through hole of the bracket, causing not only jamming but also wear during the sliding process of the connecting rod inside the through hole of the bracket belonging to the bracket, thereby affecting the final drainage effect and reducing the service life. In view of this, the utility model proposes an automatic drainage device for compressed air injection of an electric bag dust collector. Summary of the Utility Model

[0007] In order to overcome the above-mentioned defects of the prior art, the utility model provides an automatic drainage device for compressed air injection of an electric bag dust collector to solve the problems raised in the above background art.

[0008] To achieve the above object, the present utility model provides the following technical solution: An automatic drainage device for blowing compressed air in an electric bag dust collector, comprising a buffer tank, wherein the buffer tank is composed of an upper box body and a lower box body. Among them, the upper box body is located at the top of the lower box body. A water inlet pipe is penetratively arranged on the surface of the upper box body, and a drain pipe is penetratively arranged on the surface of the lower box body.

[0009] It can be seen that in the above structure, the water inlet pipe is used to introduce the humid gas inside the gas collecting bag of the electric bag dust collector into the buffer tank. The buffer tank is used to buffer the condensed water. When it reaches a certain amount, it is discharged through the drain pipe to achieve the purpose of automatic drainage.

[0010] In order to be able to drive the conical sealing block to rise from the inside of the drain pipe according to the water level inside the buffer tank, so as to achieve the purpose of automatic drainage and automatic sealing of the drain pipe. Preferably, a connecting rod is arranged on the inner wall of the lower box body. One end of the connecting rod is provided with a sleeve, and a sleeve rod is slidably arranged inside the sleeve. The bottom of the sleeve rod is provided with a conical sealing block, and the top of the sleeve rod is provided with a floating ball. A filter ring is arranged at the connection between the sleeve and the sleeve rod. The drain pipe is of a conical structure, and the conical sealing block is adapted to the structure of the drain pipe, and the outer surface of the conical sealing block fits against the inner wall of the drain pipe.

[0011] In order to improve the smoothness of the sliding of the sleeve rod inside the sleeve, reduce wear and jamming, and improve the service life. Preferably, a plurality of ball structures are annularly distributed on the inner wall of the filter ring. The ball structure specifically includes a mounting seat. A plurality of embedding grooves are opened on the inner wall of the filter ring, and the mounting seat is installed inside the embedding grooves. A circular groove is opened on the surface of the mounting seat, and a ball is arranged inside the circular groove. An extrusion spring is arranged at one end of the mounting seat inside the embedding groove. The mounting seat is slidably connected inside the embedding groove, and both ends of the extrusion spring are respectively connected to the inner wall of the embedding groove and the outer surface of the mounting seat. One side of the ball is rotatably connected inside the circular groove, and the other side of the ball fits against the outer wall of the sleeve rod.

[0012] In order to facilitate the disassembly of the upper box body and the lower box body, and then clean and maintain the inside of the buffer tank. Preferably, ear plates are arranged at both ends of the upper box body and the lower box body. Threaded holes are arranged at the connection of every two ear plates, and bolts are threadedly installed inside the threaded holes.

[0013] To prevent impurities and particles in the liquid inside the buffer tank from entering the gap between the sleeve rod and the sleeve, thus causing wear and jamming between the sleeve rod and the sleeve, preferably, the number of the filter rings is set to two, and the two filter rings are respectively located at the top and bottom of the sleeve. Both ends of the sleeve rod penetrate through the filter rings and extend to the top and bottom of the sleeve respectively. Screws are provided at the joints of the filter rings and the sleeve, and they are detachably connected by the screws.

[0014] Technical effects and advantages of the present utility model:

[0015] 1. By setting the ball structure, during the sliding process of the sleeve rod inside the sleeve, the balls at the mounting seat on the inner wall of the filter ring will fit on the surface of the sleeve rod and roll, thereby reducing wear and jamming, improving the smoothness of the sleeve rod sliding inside the sleeve, and the elasticity of the compression spring can make the balls on the surface of the mounting seat always fit on the outer surface of the sleeve rod, ensuring the smooth up and down sliding of the sleeve rod inside the sleeve;

[0016] 2. The filter rings located at the top and bottom of the sleeve are used to block the connection between the sleeve rod and the sleeve, preventing impurity particles in the water from entering the gap between the sleeve rod and the sleeve, and further causing wear and jamming during the sliding process of the sleeve rod inside the sleeve. The filter rings can be installed and removed by screws, which is convenient for disassembling and cleaning the filter rings;

[0017] 3. As the water level inside the buffer tank continuously rises, the floating ball will drive the sleeve rod to rise, and then the sleeve rod drives the conical sealing block to rise from the inside of the drain pipe, enabling the water inside the buffer tank to be discharged through the drain pipe, achieving the purpose of automatic drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the lower box body of the present utility model.

[0020] Figure 3 It is a schematic diagram of the connection structure between the sleeve and the connecting rod of the present utility model.

[0021] Figure 4 It is a schematic diagram of the connection structure between the sleeve rod and the sleeve of the present utility model.

[0022] Figure 5 It is a schematic diagram of the surface structure of the filter ring of the present utility model.

[0023] Figure 6 It is of the present utility model Figure 5 The enlarged structure schematic diagram at A in

[0024] The reference numerals are: 1, buffer tank; 100, upper box body; 101, lower box body; 2, water inlet pipe; 3, drain pipe; 4, connecting rod; 5, sleeve; 6, sleeve rod; 7, conical sealing block; 8, floating ball; 9, filter ring; 10, mounting seat; 11, embedding groove; 12, circular groove; 13, ball; 14, compression spring; 15, ear plate; 16, bolt. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] As shown in the attached Figures 1-6 An automatic drainage device for blowing compressed air in an electrostatic precipitator, including a buffer tank 1. The buffer tank 1 is composed of an upper box body 100 and a lower box body 101. Among them, the upper box body 100 is located at the top of the lower box body 101. A water inlet pipe 2 penetrates through the surface of the upper box body 100, and a drain pipe 3 penetrates through the surface of the lower box body 101.

[0027] Specifically, in this structure, the water inlet pipe 2 on the surface of the upper box body 100 can be connected to the bottom of the gas collecting bag of the electrostatic precipitator, so as to introduce the humid gas inside the gas collecting bag of the electrostatic precipitator into the buffer tank 1, and after reaching a certain amount, it can be discharged through the drain pipe 3.

[0028] In a specific embodiment, a connecting rod 4 is provided on the inner wall of the lower box body 101. One end of the connecting rod 4 is provided with a sleeve 5. A sleeve rod 6 is slidably arranged inside the sleeve 5. Among them, a conical sealing block 7 is provided at the bottom of the sleeve rod 6, and a floating ball 8 is provided at the top of the sleeve rod 6. A filter ring 9 is provided at the connection between the sleeve 5 and the sleeve rod 6. The drain pipe 3 is of a conical structure. The conical sealing block 7 is adapted to the structure of the drain pipe 3, and the outer surface of the conical sealing block 7 is attached to the inner wall of the drain pipe 3.

[0029] Specifically, in this structure, in the initial state, under the action of gravity, the conical sealing block 7 is inside the drain pipe 3 to seal the drain pipe 3. When the humid gas inside the gas collecting bag of the electrostatic precipitator is introduced into the inside of the buffer tank 1, when the temperature drops at night, the water vapor in the humid air condenses into liquid, and then accumulates inside the buffer tank 1. As the liquid inside the buffer tank 1 continuously accumulates and the liquid level rises, the floating ball 8 drives the sleeve rod 6 to rise, so that the sleeve rod 6 drives the conical sealing block 7 to rise from the inside of the drain pipe 3, and then the water can be discharged through the drain pipe 3. The filter ring 9 at the connection between the sleeve rod 6 and the sleeve 5 is used to block the impurity particles in the water to prevent impurities from entering the gap between the sleeve rod 6 and the sleeve 5, which may cause wear and jamming of the sleeve rod 6 sliding inside the sleeve 5, and further affect the rising and sealing of the conical sealing block 7 inside the drain pipe 3.

[0030] In a specific embodiment, as shown in the attached Figure 4 , 5 , Figures 6, the inner wall of the filter ring 9 is annularly distributed with a plurality of ball structures. Specifically, the ball structure includes a mounting seat 10. A plurality of embedding grooves 11 are formed on the inner wall of the filter ring 9. The mounting seat 10 is installed inside the embedding groove 11. A circular groove 12 is formed on the surface of the mounting seat 10, and a ball 13 is arranged inside the circular groove 12. An extrusion spring 14 is arranged at one end of the embedding groove 11 inside the mounting seat 10. The mounting seat 10 is slidably connected inside the embedding groove 11. Both ends of the extrusion spring 14 are connected to the inner wall of the embedding groove 11 and the outer surface of the mounting seat 10 respectively. One side of the ball 13 is rotatably connected inside the circular groove 12, and the other side of the ball 13 is attached to the outer wall of the sleeve rod 6.

[0031] Specifically, in this structure, during the process of sliding the sleeve rod 6 inside the sleeve 5 to open and close the conical sealing block 7, in order to avoid the wear and jamming caused by the continuous sliding of the sleeve rod 6 inside the sleeve 5, when the sleeve rod 6 slides inside the sleeve 5, the ball 13 at the mounting seat 10 will fit on the surface of the sleeve rod 6 and roll, so as to reduce the wear and jamming phenomenon. The elasticity of the extrusion spring 14 can make the ball 13 on the surface of the mounting seat 10 always fit on the outer surface of the sleeve rod 6, ensuring the stable up and down sliding of the sleeve rod 6 inside the sleeve 5.

[0032] In a specific embodiment, as shown in the attached Figure 1 , both ends of the upper box body 100 and the lower box body 101 are provided with ear plates 15, and a threaded hole is provided at the connection of every two ear plates 15, and a bolt 16 is threadedly installed inside the threaded hole.

[0033] Specifically, in this structure, the buffer box 1 is composed of the upper box body 100 and the lower box body 101. The upper box body 100 and the lower box body 101 are connected by bolts 16 on the ear plates 15, which facilitates the disassembly and assembly between the upper box body 100 and the lower box body 101, and further facilitates the cleaning of the inside of the buffer box 1 and the maintenance of its internal structure.

[0034] In a specific embodiment, as shown in the attached Figure 3 , 4 The number of the filter rings 9 is set to two, and the two filter rings 9 are respectively located at the top and bottom of the sleeve 5. Both ends of the sleeve rod 6 penetrate through the filter rings 9 and extend to the top and bottom of the sleeve 5 respectively. Screws are provided at the connections between the filter rings 9 and the sleeve 5, and they are detachably connected by the screws.

[0035] Specifically, in this structure, the filter rings 9 located at the top and bottom of the sleeve 5 are used to block the connection between the sleeve rod 6 and the sleeve 5, preventing impurity particles in the water from entering the gap between the sleeve rod 6 and the sleeve 5, and thus avoiding the phenomenon of wear and jamming during the sliding of the sleeve rod 6 inside the sleeve 5. The filter rings 9 can be installed and removed by screws, which facilitates the disassembly and cleaning of the filter rings 9.

[0036] Working principle of the utility model:

[0037] When the above structure is specifically used, first, the water inlet pipe 2 on the surface of the upper box body 100 can be connected to the bottom of the gas collecting bag of the electrostatic bag precipitator, and is used to introduce the wet gas inside the gas collecting bag of the electrostatic bag precipitator into the inside of the buffer box 1;

[0038] In the initial state, under the action of gravity, the conical sealing block 7 is inside the drain pipe 3 to seal the drain pipe 3. When the wet gas inside the gas collecting bag of the electrostatic bag precipitator is introduced into the inside of the buffer box 1, when the temperature drops at night, the water vapor in the wet air condenses into liquid, and then accumulates inside the buffer box 1. As the liquid inside the buffer box 1 continuously accumulates and the liquid level rises, the floating ball 8 will drive the sleeve rod 6 to rise, so that the sleeve rod 6 drives the conical sealing block 7 to rise from the inside of the drain pipe 3, and then the water can be discharged through the drain pipe 3 to achieve the purpose of automatic drainage;

[0039] The filter rings 9 located at the top and bottom of the sleeve 5 are used to block the connection between the sleeve rod 6 and the sleeve 5, preventing impurity particles in the water from entering the gap between the sleeve rod 6 and the sleeve 5, and thus avoiding the phenomenon of wear and jamming during the sliding of the sleeve rod 6 inside the sleeve 5. The filter rings 9 can be installed and removed by screws, which facilitates the disassembly and cleaning of the filter rings 9;

[0040] Moreover, during the process of the sleeve rod 6 sliding inside the sleeve 5, the ball 13 at the mounting seat 10 on the inner wall of the filter ring 9 will fit on the surface of the sleeve rod 6 and roll, thereby reducing wear and jamming phenomena and improving the smoothness of the sleeve rod 6 sliding inside the sleeve 5. The elasticity of the compression spring 14 can make the ball 13 on the surface of the mounting seat 10 always fit on the outer surface of the sleeve rod 6, ensuring the smooth up-and-down sliding of the sleeve rod 6 inside the sleeve 5.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic drainage device for spraying compressed air for an electric bag dust collector, comprising a buffer box (1), characterized in that: The cache box (1) is composed of an upper box body (100) and a lower box body (101), wherein the upper box body (100) is located on the top of the lower box body (101), a water inlet pipe (2) is provided through the surface of the upper box body (100), and a drainage pipe (3) is provided through the surface of the lower box body (101); The inner wall of the lower box body (101) is provided with a connecting rod (4), one end of the connecting rod (4) is provided with a sleeve (5), a sleeve rod (6) is slidably provided inside the sleeve (5), a conical sealing block (7) is provided at the bottom of the sleeve rod (6), and a suspension ball (8) is provided at the top of the sleeve rod (6), and a filter ring (9) is provided at the connection between the sleeve (5) and the sleeve rod (6); The inner wall of the filter ring (9) is provided with a plurality of ball structures distributed in an annular shape; The ball structure specifically comprises a mounting seat (10), the inner wall of the filter ring (9) is provided with a plurality of embedding grooves (11), the mounting seat (10) is installed inside the embedding grooves (11), a circular groove (12) is provided on the surface of the mounting seat (10), and a ball (13) is arranged inside the circular groove (12), and a compression spring (14) is arranged inside the embedding groove (11) at one end of the mounting seat (10).

2. The automatic drainage device for spraying compressed air for electric bag dust collector according to claim 1 is characterized in that: Both ends of the upper box body (100) and the lower box body (101) are provided with ear plates (15), and the connection between each two ear plates (15) is provided with a threaded hole, and the internal threads of the threaded holes are provided with bolts (16).

3. The automatic drainage device for spraying compressed air for electric bag dust collector according to claim 1 is characterized in that: The drain pipe (3) is of a conical structure, the conical sealing block (7) is adapted to the structure of the drain pipe (3), and the outer surface of the conical sealing block (7) fits the inner wall of the drain pipe (3).

4. The automatic drainage device for spraying compressed air for electric bag dust collector according to claim 1 is characterized in that: The number of the filter rings (9) is set to two, and the two filter rings (9) are respectively located at the top and bottom of the sleeve (5), and both ends of the sleeve rod (6) pass through the filter rings (9) and extend to the top and bottom of the sleeve (5) respectively.

5. The automatic drainage device for spraying compressed air for electric bag dust collector according to claim 1 is characterized in that: The connection between the filter ring (9) and the sleeve (5) is provided with screws, and the connection is detachable via the screws.

6. The automatic drainage device for blowing compressed air for electric bag dust collector according to claim 1 is characterized in that: The mounting seat (10) is slidably connected inside the embedding groove (11), and the two ends of the extrusion spring (14) are respectively connected to the inner wall of the embedding groove (11) and the outer surface of the mounting seat (10).

7. The automatic drainage device for spraying compressed air for electric bag dust collector according to claim 1 is characterized in that: One side of the ball (13) is rotatably connected inside the circular groove (12), and the other side of the ball (13) is in contact with the outer wall of the sleeve rod (6).

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