Organic waste gas catalytic combustion device with emergency bypass

Abstract

The utility model provides an organic waste gas catalytic combustion device with an emergency bypass, which comprises a first emergency cut-off valve, a bypass pipe and a temperature sensor, the right end of an eduction pipe is fixedly connected with a connecting tee joint, the lower end of the connecting tee joint is provided with the first emergency cut-off valve, and the lower end of the first emergency cut-off valve is connected with the bypass pipe. When the intelligent temperature controller detects that the temperature of a combustion chamber in the catalytic combustion device body exceeds the upper limit of a preset value through the temperature sensor, the intelligent temperature controller can control the first emergency cut-off valve to be opened and the second emergency cut-off valve to be closed; organic waste gas in the connecting tee joint enters external organic waste gas treatment equipment through the bypass pipe, and the organic waste gas entering the catalytic combustion device body is blocked, so that the situation that the organic waste gas leaks to the surrounding when the temperature of the catalytic combustion device body is too high is avoided; therefore, the use safety of the catalytic combustion device body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of organic waste gas treatment, in particular to an organic waste gas device with emergency bypass catalytic combustion. Background Art

[0002] Organic waste gas treatment refers to the adsorption, filtration and purification of organic waste gas generated in the industrial production process. The commonly used methods for organic waste gas treatment are organic waste gas activated carbon adsorption treatment, catalytic combustion, catalytic oxidation, acid-base neutralization, plasma, etc. Among them, the catalytic combustion method is to heat the waste gas and convert it into harmless and odorless carbon dioxide and water through catalytic combustion, and then discharge it into the air.

[0003] Publication No. "CN218209608U" provides a catalytic combustion device for treating organic waste gas, which is provided with a filter assembly. In the process of treating organic waste gas, the waste gas can pass through the filter to filter the dust mixed therein. After filtering, the motor can be controlled by the control block to drive the screw to rotate, so that the movable block drives the brush to move back and forth on the screw, thereby achieving the purpose of cleaning the dust accumulated on the filter. The dust brushed off by the brush can be collected in the dust box under the filter. The dust box can be cleaned and replaced by opening the cleaning plate.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Firstly, the catalytic combustion device for treating organic waste gas uses the rotation of the screw to enable the movable block to drive the brush to move back and forth on the screw to clean the dust accumulated on the filter. However, in actual use, once dust adheres to the brush, this cleaning structure will cause secondary pollution to the filter, resulting in the brush being unable to effectively clean the filter. Secondly, the catalytic combustion device for treating organic waste gas does not have a corresponding emergency bypass. Once a failure occurs in the combustion chamber of the catalytic combustion device, the temperature is too high and a leak occurs. At this time, the organic waste gas entering the catalytic combustion device will be directly discharged to the surroundings through the leak, thereby polluting the surrounding environment, and its practicality is poor. Utility Model Content

[0006] The purpose of the utility model is to provide an organic waste gas catalytic combustion device with an emergency bypass to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A device for catalytic combustion of organic waste gas with emergency bypass comprises an air inlet pipe, a pre-filter box, a fixed base plate, a catalytic combustion device body, an air outlet pipe and a pre-filter screen plate, wherein the upper outlet of the catalytic combustion device body is connected to the air outlet pipe, a pre-filter box is installed on the left side of the catalytic combustion device body, a fixed base plate is fixedly connected to the bottom of the pre-filter box, a pre-filter screen plate is installed inside the pre-filter box, an air inlet pipe is connected to the inlet of the pre-filter box, a shaking-off component for cleaning dust on the surface of the pre-filter screen plate is arranged inside the pre-filter box, an emergency discharge component is arranged between the pre-filter box and the catalytic combustion device body, and the emergency discharge component is used to cut off the organic waste gas entering the catalytic combustion device body and discharge it through a bypass when the temperature inside the catalytic combustion device body is too high and leaks, so as to ensure the safety of the catalytic combustion device body.

[0009] Preferably, the shaking-off assembly includes a box cover, a vibration motor, an upper limit seat, an upper compression spring and an upper support seat. The upper end surface of the pre-filter box is installed with a box cover, a vibration motor is installed in the middle position of the upper end surface of the box cover, and an upper limit seat is provided on the lower end surface of the box cover. An upper support seat is embedded in the upper limit seat, and upper compression springs are symmetrically clamped on both sides of the upper end surface of the upper support seat.

[0010] Preferably, a lower limit seat is fixedly connected to the lower side of the pre-filter box, a lower support seat is embedded in the lower limit seat, and a lower compression spring is symmetrically mounted on both sides of the front and rear of the lower end face of the lower support seat.

[0011] Preferably, the emergency discharge component includes an intelligent thermostat, an outlet pipe, a connecting tee, a first emergency shut-off valve, a bypass pipe and a temperature sensor; the outlet on the right end face of the pre-filter box is fixedly connected to the outlet pipe, the right end of the outlet pipe is fixedly connected to the connecting tee, the lower end of the connecting tee is equipped with a first emergency shut-off valve, the lower end of the first emergency shut-off valve is connected to a bypass pipe, a temperature sensor is installed on the lower side of the right end face of the catalytic combustion device body, and the front end face of the pre-filter box is equipped with an intelligent thermostat.

[0012] Preferably, a connecting pipe is fixedly connected to the right end of the connecting tee, a second emergency shut-off valve is installed at the right end of the connecting pipe, and a connecting pipe is connected to the outlet of the second emergency shut-off valve and the inlet of the catalytic combustion device body.

[0013] Preferably, guide guide inclined seats are symmetrically arranged on the left and right sides of the upper end surface of the lower limit seat, the left and right sides and the front and rear sides of the inner wall of the lower limit seat are pasted with a first lining film, the inner wall of the lower support seat is adhered with a second lining film, and the left and right end surfaces of the lower limit seat are attached with dust collection boxes.

[0014] Preferably, transparent observation windows are symmetrically installed on the left and right end surfaces of the pre-filter box, and a rubber vibration isolation pad is pasted on the lower end surface of the fixed base plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. During the use of the catalytic combustion device, the vibration motor is started to drive the pre-filter plate to vibrate through the box cover and the pre-filter box. At this time, the upper compression spring, the lower compression spring, the upper support seat and the lower support seat will make the pre-filter plate move up and down to a certain extent during the vibration process, so as to improve the vibration effect of the pre-filter plate, thereby shaking off most of the dust adhering to the surface of the pre-filter plate, and the dust shaken off will be guided by the guide inclined seat to the dust collection box, so as to extend the cleaning cycle of the pre-filter plate;

[0017] 2. During the use of the catalytic combustion device body, when the intelligent thermostat detects through the temperature sensor that the temperature of the combustion chamber inside the catalytic combustion device body exceeds the upper limit of the preset value, the intelligent thermostat will control the first emergency shut-off valve to open and the second emergency shut-off valve to close, so that the organic waste gas inside the connecting tee enters the external organic waste gas treatment equipment through the bypass pipe, and the organic waste gas entering the catalytic combustion device body will be blocked, thereby preventing the organic waste gas from leaking to the surroundings when the temperature of the catalytic combustion device body is too high, thereby ensuring the safety of the use of the catalytic combustion device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a structural diagram of the shock-off assembly and the emergency discharge assembly in the utility model;

[0020] Figure 3 It is a front cross-sectional view of the shock-off assembly and the emergency discharge assembly in the utility model;

[0021] Figure 4 It is a structural diagram of the catalytic combustion device body in the utility model;

[0022] Figure 5 for Figure 3 A partial enlarged view of .

[0023] In the figure: 1. Inlet pipe; 2. Pre-filter box; 21. Transparent observation window; 3. Fixed base plate; 31. Rubber shock isolation pad; 4. Shake-off assembly; 41. Box cover; 42. Vibration motor; 43. Upper limit seat; 44. Upper compression spring; 45. Upper support seat; 46. Lower limit seat; 47. Ash collection box; 48. Lower compression spring; 49. First lining rubber sheet; 411. Lower support seat; 412. Second lining rubber sheet; 413. Guide inclined seat; 5. Emergency discharge assembly; 51. Intelligent thermostat; 52. Export pipe; 53. Connecting tee; 54. First emergency shut-off valve; 55. Bypass pipe; 56. Connecting pipe; 57. Second emergency shut-off valve; 58. Connecting pipe; 59. Temperature sensor; 6. Catalytic combustion device body; 7. Exit pipe; 8. Pre-filter screen. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A device for catalytic combustion of organic waste gas with emergency bypass comprises an air inlet pipe 1, a pre-filter box 2, a fixed base plate 3, a catalytic combustion device body 6, an air outlet pipe 7 and a pre-filter screen plate 8. The upper outlet of the catalytic combustion device body 6 is connected with the air outlet pipe 7, and the outlet of the air outlet pipe 7 is communicated with the inlet of an external chimney. The air outlet pipe 7 will guide the organic waste gas treated by the catalytic combustion device body 6 to the external chimney. Since the internal detailed structure and working principle of the catalytic combustion device body 6 are relatively mature technologies in the prior art, they will not be described in detail here. A pre-filter box 2 is installed on the left side of the catalytic combustion device body 6, and a pre-filter screen plate 8 is installed inside the pre-filter box 2. The pre-filter box 2 and the filter screen plate will pre-filter most of the dust in the organic waste gas.

[0028] A fixed base plate 3 is fixedly connected to the bottom of the pre-filter box 2, and the fixed base plate 3 supports and fixes the pre-filter box 2. An air intake pipe 1 is connected to the inlet of the pre-filter box 2. The inlet of the air intake pipe 1 is connected to the external organic waste gas discharge end. The air intake pipe 1 will guide the organic waste gas to the interior of the pre-filter box 2. Transparent observation windows 21 are symmetrically installed on the left and right end surfaces of the pre-filter box 2. The transparent observation windows 21 are convenient for the staff to observe the internal situation of the pre-filter box 2 in real time. A rubber seismic isolation pad 31 is pasted on the lower end surface of the fixed base plate 3. The rubber seismic isolation pad 31 makes the fixed base plate 3 have a good seismic isolation effect, avoiding the resonance noise between the fixed base plate 3 and the ground when the vibration motor 42 is working.

[0029] A shaking-off component 4 for cleaning dust on the surface of the pre-filter screen 8 is arranged inside the pre-filter box 2, and an emergency discharge component 5 is arranged between the pre-filter box 2 and the catalytic combustion device body 6. The emergency discharge component 5 is used to cut off the organic waste gas entering the catalytic combustion device body 6 and discharge it through a bypass when excessive temperature leakage occurs inside the catalytic combustion device body 6, so as to ensure the safety of the use of the catalytic combustion device body 6.

[0030] The shaking-off assembly 4 includes a box cover 41, a vibration motor 42, an upper limit seat 43, an upper compression spring 44 and an upper support seat 45. The upper end surface of the pre-filter box 2 is installed with a box cover 41, and the box cover 41 is a detachable structure. The detachable box cover 41 will not only block the upper end of the pre-filter box 2, but also facilitate the later staff to clean and maintain the inside of the pre-filter box 2. A vibration motor 42 is installed in the middle position of the upper end surface of the box cover 41. When working, the vibration motor 42 will drive the pre-filter box 2 to vibrate through the box cover 41, so that the pre-filter box 2 can be cleaned and maintained. The filter box 2 drives the internal pre-filter screen 8 to vibrate, and an upper limit seat 43 is provided on the lower end surface of the box cover 41, and the upper limit seat 43 is connected to the box cover 41 by welding. The upper limit seat 43 will limit the upper support seat 45 to prevent the upper support seat 45 from being offset left and right or front and back during use. The upper support seat 45 is embedded in the upper limit seat 43, and the upper compression springs 44 are symmetrically clamped on the front and rear sides of the upper end of the upper support seat 45. The upper support seat 45 facilitates the upper compression spring 44 to squeeze the upper end of the pre-filter screen 8.

[0031] A lower limit seat 46 is fixedly connected to the lower side of the pre-filter box 2. The lower limit seat 46 will limit the lower support seat 411 to prevent the lower support seat 411 from deviating left and right or front and back during use. The lower support seat 411 is embedded in the lower limit seat 46. The lower compression spring 48 is symmetrically mounted on the front and rear sides of the lower end face of the lower support seat 411. The lower limit seat 46 facilitates the lower compression spring 48 to squeeze the lower end of the pre-filter screen plate 8. The left and right sides of the upper end face of the lower limit seat 46 are symmetrically provided with guide and drop inclined seats 413. The guide and drop inclined seats 413 are connected to the lower limit seat 46 by welding. The guide and drop inclined seats 413 will The dust shaken off by the mesh plate 8 is guided into the dust collecting box 47. The left and right sides and the front and back sides of the inner walls of the upper limit seat 43 and the lower limit seat 46 are pasted with the first lining film 49. The first lining film 49 makes the upper limit seat 43 and the upper support seat 45 and the lower limit seat 46 and the lower support seat 411 more tightly sealed. The inner walls of the upper support seat 45 and the lower support seat 411 are bonded with the second lining film 412. The second lining film 412 makes the upper support seat 45 and the lower support seat 411 and the pre-filter mesh plate 8 more tightly sealed. The left and right end faces of the lower limit seat 46 are fitted with dust collecting boxes 47, which will collect the shaken dust.

[0032] Embodiment 2:

[0033] On the basis of Example 1, in this embodiment, when the intelligent thermostat 51 detects through the temperature sensor 59 that the temperature of the combustion chamber inside the catalytic combustion device body 6 exceeds the upper limit of the preset value, the intelligent thermostat 51 will control the first emergency shut-off valve 54 to open and the second emergency shut-off valve 57 to close, so that the organic waste gas inside the connecting tee 53 enters the external organic waste gas treatment equipment through the bypass pipe 55, and the organic waste gas entering the catalytic combustion device body 6 will be blocked, thereby preventing the organic waste gas from leaking to the surroundings when the catalytic combustion device body 6 leaks due to excessive temperature, thereby ensuring the safety of the catalytic combustion device body 6.

[0034] The emergency discharge component 5 includes an intelligent temperature controller 51, an outlet pipe 52, a connecting tee 53, a first emergency shut-off valve 54, a bypass pipe 55 and a temperature sensor 59. The outlet on the right end face of the pre-filter box 2 is fixedly connected with the outlet pipe 52. The outlet pipe 52 will guide the organic waste gas filtered inside the pre-filter box 2 to the connecting tee 53. The right end of the outlet pipe 52 is fixedly connected with the connecting tee 53. The connecting tee 53 will guide the organic waste gas to the first emergency shut-off valve 54 and the second emergency shut-off valve 57 respectively. The first emergency shut-off valve 54 is installed at the lower end of the connecting tee 53. The first emergency shut-off valve 54 is in a normally closed state during daily operation. The first emergency shut-off valve 54 will control the on-off of the bypass pipe 55.

[0035] A bypass pipe 55 is connected to the lower end of the first emergency shut-off valve 54, and the outlet of the bypass pipe 55 is connected to the inlet of the external organic waste gas treatment equipment. When the first emergency shut-off valve 54 is opened, the bypass pipe 55 will guide the organic waste gas to the inside of the external organic waste gas treatment equipment for purification. A temperature sensor 59 is installed on the lower side of the right end surface of the catalytic combustion device body 6, and the temperature sensor 59 is connected to the intelligent thermostat 51 through a wire. The front end surface of the pre-filter box 2 is installed with an intelligent thermostat 51, and the intelligent thermostat 51 is connected to the first emergency shut-off valve 54 and the second emergency shut-off valve 57 through a wire. When working, the temperature sensor 59 will monitor the temperature of the combustion chamber inside the catalytic combustion device body 6 in real time, and transmit the monitored temperature value to the intelligent thermostat 51 in real time, so that the intelligent thermostat 51 can control the switch of the first emergency shut-off valve 54 and the second emergency shut-off valve 57 according to a preset program. Since the internal detailed structure and working principle of the intelligent thermostat 51 belong to the relatively mature technology in the prior art, they will not be described in detail here.

[0036] The right end of the connecting tee 53 is fixedly connected with a connecting pipe 58, which will guide the organic waste gas in the connecting tee 53 to the second emergency shut-off valve 57. The right end of the connecting pipe 58 is installed with the second emergency shut-off valve 57. The second emergency shut-off valve 57 is in a normally open state during daily operation. The second emergency shut-off valve 57 will control the on-off of the connecting pipe 56. The outlet of the second emergency shut-off valve 57 and the inlet of the catalytic combustion device body 6 are connected with a connecting pipe 56. The connecting pipe 56 will guide the organic waste gas in the second emergency shut-off valve 57 to the inside of the catalytic combustion device body 6 for treatment.

[0037] Working principle: During the use of the catalytic combustion device body 6, the external organic waste gas will enter the pre-filter box 2 through the air inlet pipe 1, and then the pre-filter screen plate 8 will pre-filter the organic waste gas entering the pre-filter box 2, and block most of the dust in the organic waste gas, and the filtered organic waste gas will pass through the outlet pipe 52, the connecting tee 53, the connecting pipe 58, the second emergency shut-off valve 57 and the connecting pipe 56 in sequence to enter the catalytic combustion device body 6 for catalytic combustion treatment; at the same time, the staff starts the vibration motor 42, so that the vibration motor 42 drives the pre-filter screen plate 8 to vibrate through the box cover plate 41 and the pre-filter box 2, and the upper compression spring 44, the lower compression spring 48, the upper support seat 45 and the lower support seat 411 will make the pre-filter screen plate 8 do a certain amplitude of up and down displacement action, so as to improve the vibration effect of the pre-filter screen plate 8, so as to remove most of the dust adhering to The dust on the surface of the pre-filter plate 8 is shaken off, and the shaken off dust will be guided by the guide inclined seat 413 to the dust collecting box 47, thereby extending the cleaning cycle of the pre-filter plate 8. In the later use process, the staff only needs to disassemble the box cover 41, and then they can take out the pre-filter plate 8 and the dust collecting box 47 from the pre-filter box 2 for cleaning and maintenance; when the intelligent thermostat 51 detects through the temperature sensor 59 that the temperature of the internal combustion chamber of the catalytic combustion device body 6 exceeds the upper limit of the preset value, the intelligent thermostat 51 will control the first emergency shut-off valve 54 to open and the second emergency shut-off valve 57 to close, so that the organic waste gas inside the connecting tee 53 enters the external organic waste gas treatment equipment through the bypass pipe 55, and the organic waste gas entering the catalytic combustion device body 6 will be blocked, thereby preventing the organic waste gas from leaking to the surrounding when the catalytic combustion device body 6 leaks due to excessive temperature.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for catalytic combustion of organic waste gas with emergency bypass, comprising an air inlet pipe (1), a pre-filter box (2), a fixed base plate (3), a catalytic combustion device body (6), an air outlet pipe (7) and a pre-filter screen plate (8), characterized in that: The upper outlet of the catalytic combustion device body (6) is connected to an air outlet pipe (7), a pre-filter box (2) is installed on the left side of the catalytic combustion device body (6), a fixed base plate (3) is fixedly connected to the bottom of the pre-filter box (2), a pre-filter screen plate (8) is installed inside the pre-filter box (2), and an inlet pipe (1) is connected to the inlet of the pre-filter box (2); The pre-filter box (2) is provided with a shaking-off assembly (4) for cleaning dust on the surface of the pre-filter screen (8), and an emergency discharge assembly (5) is provided between the pre-filter box (2) and the catalytic combustion device body (6). The emergency discharge assembly (5) is used to cut off the organic waste gas entering the catalytic combustion device body (6) and discharge it through a bypass when the temperature inside the catalytic combustion device body (6) is too high and leakage occurs, so as to ensure the safety of the use of the catalytic combustion device body (6).

2. The device for catalytic combustion of organic waste gas with emergency bypass according to claim 1, characterized in that: The shaking-off assembly (4) comprises a box cover (41), a vibration motor (42), an upper limit seat (43), an upper compression spring (44) and an upper support seat (45); the box cover (41) is installed on the upper end surface of the pre-filter box (2); the vibration motor (42) is installed at the middle position of the upper end surface of the box cover (41); the box cover (41) is provided on the lower end surface; the upper limit seat (43) is embedded in the upper limit seat (43); the upper compression spring (44) is symmetrically clamped on the front and rear sides of the upper end surface of the upper support seat (45).

3. The device for catalytic combustion of organic waste gas with emergency bypass according to claim 1, characterized in that: A lower limit seat (46) is fixedly connected to the lower side of the pre-filter box (2), a lower support seat (411) is embedded in the lower limit seat (46), and a lower compression spring (48) is symmetrically mounted on the front and rear sides of the lower end face of the lower support seat (411).

4. The device for catalytic combustion of organic waste gas with emergency bypass according to claim 1, characterized in that: The emergency discharge assembly (5) comprises an intelligent temperature controller (51), an outlet pipe (52), a connecting tee (53), a first emergency shut-off valve (54), a bypass pipe (55) and a temperature sensor (59); the outlet on the right end face of the pre-filter box (2) is fixedly connected to the outlet pipe (52); the right end of the outlet pipe (52) is fixedly connected to the connecting tee (53); the lower end of the connecting tee (53) is provided with the first emergency shut-off valve (54); the lower end of the first emergency shut-off valve (54) is connected to the bypass pipe (55); the lower side of the right end face of the catalytic combustion device body (6) is provided with the temperature sensor (59); and the front end face of the pre-filter box (2) is provided with the intelligent temperature controller (51).

5. The device for catalytic combustion of organic waste gas with emergency bypass according to claim 4, characterized in that: The right end of the connecting tee (53) is fixedly connected to a connecting pipe (58), the right end of the connecting pipe (58) is installed with a second emergency shut-off valve (57), and the outlet of the second emergency shut-off valve (57) and the inlet of the catalytic combustion device body (6) are connected by a connecting pipe (56).

6. The device for catalytic combustion of organic waste gas with emergency bypass according to claim 3, characterized in that: The upper end surface of the lower limit seat (46) is symmetrically provided with guide inclined seats (413) on the left and right sides, the inner wall of the lower limit seat (46) is pasted with a first lining rubber sheet (49) on the left and right sides and the front and rear sides, the inner wall of the lower limit seat (46) is pasted with a second lining rubber sheet (412), and the left and right end surfaces of the lower limit seat (46) are pasted with an ash collection box (47).

7. The device for catalytic combustion of organic waste gas with emergency bypass according to claim 1, characterized in that: The left and right end surfaces of the pre-filter box (2) are symmetrically mounted with transparent observation windows (21), and the lower end surface of the fixed base plate (3) is adhered with a rubber shock-isolating pad (31).

Images