High-efficiency low-carbon tail end treatment device for VOCs (volatile organic compounds)

Abstract

The utility model discloses a high-efficiency low-carbon tail end treatment device for VOCs (volatile organic compounds), which comprises a base, a spray tower, a heat exchanger and a heating box are fixedly arranged at the top end of the base, and a connecting pipe is fixedly arranged at the top of the inner side of the spray tower. A driven gear is in meshed connection with a driving gear, so that the driven gear and a fixed pipe are driven to rotate, a fourth guide pipe is driven to rotate, VOCs waste gas can be fully released in the spray tower, cold water is guided into a connecting pipe through a cold water inlet pipe, and the cold water is shunted into a plurality of annular pipes; and cold water is sprayed out in a spraying manner through a plurality of spraying heads, so that condensed spray is fully diffused into the spraying tower, and the condensed spray is further ensured to be fully contacted with the VOCs waste gas, so that efficient condensation and absorption of the VOCs waste gas are ensured, and the treatment efficiency and the treatment effect are further improved.

Description

Technical Field

[0001] The utility model relates to the field of VOCs treatment, in particular to a high-efficiency and low-carbon end treatment device for VOCs. Background Technique

[0002] At present, most small and medium-sized enterprises mainly adopt the process of high-temperature activated carbon adsorption concentration + catalytic combustion for the treatment of VOCs. Its working principle is that after the activated carbon is saturated with adsorption, it is desorbed by hot air blowing, and the desorbed gas is sent to the catalytic combustion device for combustion treatment and then discharged. However, this method requires a large amount of supplementary fuel during use, resulting in an increase in CO2 emissions and thus causing secondary pollution. Therefore, the method of high-temperature activated carbon adsorption concentration + condensation absorption came into being. This method is that after the activated carbon is saturated with adsorption, it is desorbed by hot air blowing, and the desorbed gas is sent into the spray tower to contact with the condensation spray, so as to carry out condensation absorption. However, in the process of using this method, it is not convenient to fully contact the VOCs waste gas with the condensation spray, thus affecting the effect and efficiency of condensation absorption.

[0003] To solve the above problems, a high-efficiency and low-carbon end treatment device for VOCs is proposed here. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-efficiency and low-carbon end treatment device for VOCs to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A high-efficiency and low-carbon end treatment device for VOCs, including a base, on the top of the base, a spray tower, a heat exchanger and a heating box are fixedly arranged. At the top inside the spray tower, a connecting pipe is fixedly arranged. At the bottom end of the connecting pipe, a plurality of annular pipes are fixedly communicated. At the bottom ends of the plurality of annular pipes, a plurality of spray heads are fixedly communicated. On one side of the inner wall of the spray tower, a fixing frame is fixedly arranged. At the end of the fixing frame away from the inner wall of the spray tower, a fixing seat is fixedly arranged. At the top inside the fixing seat, a motor is fixedly installed. The output end of the motor is fixedly connected with a driving gear. On one side of the fixing seat, a connecting block is fixedly connected. At the side of the connecting block away from the fixing seat, an adapter is fixedly arranged. At the top of the adapter, a fixing pipe is rotatably arranged. On the surface of the fixing pipe, a driven gear is fixedly arranged. The driven gear is meshed and connected with the driving gear. At the top end of the fixing pipe, a fourth conduit is fixedly communicated. At the top end of the fourth conduit, a plurality of air jet ports are opened. At the top inside the heating box, an adsorption box is fixedly arranged. The two ends of the adsorption box are respectively fixedly communicated with a VOCs inlet pipe and an exhaust pipe.

[0006] The VOCs waste gas is introduced into the fourth conduit through a fixed pipe and ejected through a number of jet nozzles. At the same time, the motor drives the driving gear to rotate. Since the driven gear is meshed with the driving gear, the driven gear and the fixed pipe are driven to rotate, thereby driving the fourth conduit to rotate, so that the VOCs waste gas can be fully released in the spray tower. Then, cold water is introduced into the connecting pipe through the cold water inlet pipe and is divided into a number of annular pipes through cold water diversion. Then, the cold water is ejected in the form of spray through a number of spray heads, so that the condensation spray is fully diffused into the interior of the spray tower, thereby ensuring that the condensation spray is in full contact with the VOCs waste gas, thus ensuring the efficient condensation absorption of the VOCs waste gas, and then improving the treatment efficiency and treatment effect.

[0007] Preferably, a blower is fixedly installed on one side of the heating box. The air inlet end of the blower extends into the heating box and is fixedly communicated with a filter. The air outlet end of the blower is fixedly communicated with a first conduit. The end of the first conduit away from the blower is communicated with the VOCs inlet pipe. A second valve is fixedly installed at the connection between the first conduit and the VOCs inlet pipe. The high-temperature air in the heating box is introduced into the VOCs inlet pipe through the blower, and then the high-temperature air is introduced into the adsorption box, which is convenient for desorbing the saturated activated carbon in the adsorption box.

[0008] Preferably, a placement seat is fixedly arranged inside the heating box, and a number of electric heating tubes are fixedly arranged inside the placement seat. A temperature sensor is fixedly installed at the top inside the heating box. The air in the heating box is heated by the heat released by the energization of the number of electric heating tubes.

[0009] Preferably, a second conduit is fixedly communicated with the middle of the exhaust pipe. A fourth valve is fixedly installed at the connection between the second conduit and the exhaust pipe. The bottom end of the second conduit extends into the heat exchanger and is fixedly communicated with a first branch pipe. The bottom end of the first branch pipe is fixedly communicated with a number of heat exchange tubes. A second branch pipe is fixedly communicated with the bottom between the number of heat exchange tubes. The bottom end of the second branch pipe is fixedly communicated with a third conduit. The end of the third conduit away from the second branch pipe extends into the spray tower and is communicated with the adapter. The VOCs waste gas is introduced into the first branch pipe through the second conduit and then divided into a number of heat exchange tubes, and then heat exchange is carried out with the cold air in the heat exchanger, so as to cool down the VOCs waste gas.

[0010] Preferably, a third valve is arranged at the end of the exhaust pipe away from the adsorption box, and a first valve is arranged at the end of the VOCs inlet pipe away from the adsorption box. The emission of waste gas is controlled by the setting of the third valve.

[0011] Preferably, an intake pipe and an outlet pipe are fixedly connected and communicated with two sides of the heat exchanger respectively. The end of the outlet pipe away from the heat exchanger is communicated with the heating box. The heated air that has passed through heat exchange in the heat exchanger is introduced into the heating box through the outlet pipe, so as to realize the recovery of waste heat of the waste gas.

[0012] Preferably, an exhaust port is arranged at the top of the spray tower. The top of the connecting pipe is fixedly connected and communicated with a cold water inlet pipe. The end of the cold water inlet pipe away from the connecting pipe extends to the outside, and cold water is introduced into the connecting pipe through the cold water inlet pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The VOCs waste gas is introduced into the fourth conduit through the fixed pipe and ejected through a plurality of jet orifices. At the same time, the motor drives the driving gear to rotate. Since the driven gear is meshed with the driving gear, the driven gear and the fixed pipe are driven to rotate, thereby driving the fourth conduit to rotate, so that the VOCs waste gas can be fully released in the spray tower. Then, cold water is introduced into the connecting pipe through the cold water inlet pipe, and the cold water is distributed into a plurality of annular pipes, and then ejected in the form of spray through a plurality of spray heads, so that the condensation spray is fully diffused into the interior of the spray tower, thereby ensuring that the condensation spray is in full contact with the VOCs waste gas, so as to ensure the efficient condensation absorption of the VOCs waste gas, and then improve the treatment efficiency and treatment effect. Description of the Drawings

[0015] Figure 1 is a perspective view of the present utility model;

[0016] Figure 2 is a front sectional view of the present utility model;

[0017] Figure 3 is an enlarged view of part A of the present utility model;

[0018] Figure 4 is an enlarged view of part B of the present utility model.

[0019] In the figure: 1, base; 2, spray tower; 3, heat exchanger; 4, heating box; 5, adsorption box; 6, connecting pipe; 7, annular pipe; 8, spray head; 9, cold water inlet pipe; 10, exhaust port; 11, VOCs inlet pipe; 12, first valve; 13, first conduit; 14, second valve; 15, exhaust pipe; 16, third valve; 17, second conduit; 18, fourth valve; 19, first branch pipe; 20, heat exchange pipe; 21, second branch pipe; 22, intake pipe; 23, outlet pipe; 24, mounting seat; 25, electric heating pipe; 26, third conduit; 27, fixing bracket; 28, fixing seat; 29, motor; 30, driving gear; 31, connecting block; 32, adapter; 33, fixing pipe; 34, driven gear; 35, fourth conduit; 36, jet port; 37, fan; 38, filter; 39, temperature sensor. Detailed implementation manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0021] Please refer to Figures 1-4, the utility model provides a high-efficiency and low-carbon end treatment device for VOCs, which includes a base 1. At the top of the base 1, a spray tower 2, a heat exchanger 3 and a heating box 4 are fixedly arranged. At the top inside the spray tower 2, a connecting pipe 6 is fixedly arranged. At the bottom end of the connecting pipe 6, a plurality of annular pipes 7 are fixedly communicated. At the bottom ends of the plurality of annular pipes 7, a plurality of spray heads 8 are fixedly communicated. On one side of the inner wall of the spray tower 2, a fixing frame 27 is fixedly arranged. At one end of the fixing frame 27 away from the inner wall of the spray tower 2, a fixing seat 28 is fixedly arranged. At the top inside the fixing seat 28, a motor 29 is fixedly installed. The output end of the motor 29 is fixedly connected with a driving gear 30. On one side of the fixing seat 28, a connecting block 31 is fixedly connected. On one side of the connecting block 31 away from the fixing seat 28, an adapter 32 is fixedly arranged. At the top of the adapter 32, a fixing pipe 33 is rotatably arranged. On the surface of the fixing pipe 33, a driven gear 34 is fixedly arranged. The driven gear 34 is meshed and connected with the driving gear 30. At the top end of the fixing pipe 33, a fourth conduit 35 is fixedly communicated. At the top end of the fourth conduit 35, a plurality of air jet openings 36 are opened. At the top inside the heating box 4, an adsorption box 5 is fixedly arranged. The two ends of the adsorption box 5 are respectively fixedly communicated with a VOCs inlet pipe 11 and an exhaust pipe 15. The VOCs waste gas is introduced into the fourth conduit 35 through the fixing pipe 33 and sprayed out through a plurality of air jet openings 36. At the same time, the driving gear 30 is driven to rotate by the motor 29. Since the driven gear 34 is meshed and connected with the driving gear 30, the driven gear 34 and the fixing pipe 33 are driven to rotate, thereby driving the fourth conduit 35 to rotate, so that the VOCs waste gas can be fully released in the spray tower 2. Then, cold water is introduced into the connecting pipe 6 through a cold water inlet pipe 9 and is shunted into a plurality of annular pipes 7, and then is sprayed out in the form of spray through a plurality of spray heads 8, so that the condensation spray is fully diffused into the interior of the spray tower 2, thereby ensuring that the condensation spray is in full contact with the VOCs waste gas, thus ensuring the high-efficiency condensation absorption of the VOCs waste gas, and then improving the treatment efficiency and treatment effect.

[0022] On one side of the heating box 4, a blower 37 is fixedly installed. The intake end of the blower 37 extends into the interior of the heating box 4 and is fixedly connected and communicated with a filter 38. The outlet end of the blower 37 is fixedly connected and communicated with a first conduit 13. One end of the first conduit 13 away from the blower 37 is connected and communicated with the VOCs inlet pipe 11. A second valve 14 is fixedly installed at the connection between the first conduit 13 and the VOCs inlet pipe 11. Inside the heating box 4, a mounting seat 24 is fixedly arranged. Inside the mounting seat 24, a number of electric heating tubes 25 are fixedly arranged. At the top inside the heating box 4, a temperature sensor 39 is fixedly installed. In the middle of the exhaust pipe 15, a second conduit 17 is fixedly connected and communicated. At the connection between the second conduit 17 and the exhaust pipe 15, a fourth valve 18 is fixedly installed. The bottom end of the second conduit 17 extends into the interior of the heat exchanger 3 and is fixedly connected and communicated with a first branch pipe 19. The bottom end of the first branch pipe 19 is fixedly connected and communicated with a number of heat exchange tubes 20. At the bottom between the number of heat exchange tubes 20, a second branch pipe 21 is fixedly connected and communicated. The bottom end of the second branch pipe 21 is fixedly connected and communicated with a third conduit 26. One end of the third conduit 26 away from the second branch pipe 21 extends into the interior of the spray tower 2 and is connected and communicated with an adapter 32;

[0023] During use, the high-temperature air in the heating box 4 is introduced into the VOCs inlet pipe 11 through the blower 37, and then the high-temperature air is introduced into the adsorption box 5, which is convenient for desorbing the saturated activated carbon in the adsorption box 5. The electric heating tubes 25 are energized to release heat, which is convenient for heating the air in the heating box 4. The VOCs waste gas is introduced into the first branch pipe 19 through the second conduit 17 and then shunted into a number of heat exchange tubes 20, and then heat exchange is carried out with the cold air in the heat exchanger 3, so as to cool the VOCs waste gas;

[0024] A third valve 16 is arranged at one end of the exhaust pipe 15 away from the adsorption box 5. A first valve 12 is arranged at one end of the VOCs inlet pipe 11 away from the adsorption box 5. An intake pipe 22 and an outlet pipe 23 are respectively fixedly connected and communicated on both sides of the heat exchanger 3. One end of the outlet pipe 23 away from the heat exchanger 3 is connected and communicated with the heating box 4. An exhaust port 10 is arranged at the top of the spray tower 2. The top end of the connecting pipe 6 is fixedly connected and communicated with a cold water inlet pipe 9. One end of the cold water inlet pipe 9 away from the connecting pipe 6 extends to the outside;

[0025] During use, the emission of waste gas is controlled through the setting of the third valve 16. The heated air that has undergone heat exchange in the heat exchanger 3 is introduced into the heating box 4 through the outlet pipe 23, so as to realize the recovery of waste heat of the waste gas. Cold water is introduced into the connecting pipe 6 through the cold water inlet pipe 9.

[0026] In the use of the embodiment of the present application: several electric heating tubes 25 are energized to release heat to facilitate heating the air in the heating box 4. Then, the high-temperature air in the heating box 4 is introduced into the VOCs inlet pipe 11 through the fan 37, and then the high-temperature air is introduced into the adsorption box 5 to facilitate the desorption treatment of the saturated activated carbon in the adsorption box 5. Then, the VOCs waste gas is introduced into the first branch pipe 19 through the exhaust pipe 15 and the second conduit 17, and then shunted into several heat exchange tubes 20, and then heat exchange treatment is carried out with the cold air in the heat exchanger 3, so as to cool the VOCs waste gas. Then, the cooled VOCs waste gas is introduced into the adapter 32 through the third conduit 26, and then the VOCs waste gas is introduced into the fourth conduit 35 through the fixed pipe 33 and ejected through several jet ports 36. At the same time, the motor 29 drives the driving gear 30 to rotate. Since the driven gear 34 is meshed with the driving gear 30, the driven gear 34 and the fixed pipe 33 are driven to rotate, so as to drive the fourth conduit 35 to rotate, so that the VOCs waste gas can be fully released in the spray tower 2. Then, cold water is introduced into the connecting pipe 6 through the cold water inlet pipe 9, and then shunted into several annular pipes 7, and then the cold water is ejected in the form of spray through several spray heads 8, so that the condensation spray is fully diffused into the interior of the spray tower 2, so as to ensure that the condensation spray is in full contact with the VOCs waste gas, so as to ensure the efficient condensation absorption of the VOCs waste gas, and then improve the treatment efficiency and treatment effect. Among them, the heated hot air in the heat exchanger 3 is introduced into the heating box 4 through the air outlet pipe 23, so as to realize the waste heat recovery of the waste gas.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacement on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An efficient low-carbon end-treatment device for VOCs, comprising a base (1), characterized in that: At the top of the base (1), a spray tower (2), a heat exchanger (3), and a heating box (4) are fixedly arranged. At the top inside the spray tower (2), a connecting pipe (6) is fixedly arranged. At the bottom end of the connecting pipe (6), a plurality of annular pipes (7) are fixedly communicated. At the bottom ends of the plurality of annular pipes (7), a plurality of spray nozzles (8) are fixedly communicated. On one side of the inner wall of the spray tower (2), a fixing frame (27) is fixedly arranged. At one end of the fixing frame (27) away from the inner wall of the spray tower (2), a fixing seat (28) is fixedly arranged. At the top inside the fixing seat (28), a motor (29) is fixedly installed. The output end of the motor (29) is fixedly connected with a driving gear (30). On one side of the fixing seat (28), a connecting block (31) is fixedly connected. On one side of the connecting block (31) away from the fixing seat (28), an adapter (32) is fixedly arranged. At the top of the adapter (32), a fixing pipe (33) is rotatably arranged. On the surface of the fixing pipe (33), a driven gear (34) is fixedly arranged. The driven gear (34) is meshed and connected with the driving gear (30). At the top end of the fixing pipe (33), a fourth conduit (35) is fixedly communicated. At the top end of the fourth conduit (35), a plurality of air jet openings (36) are provided. At the top inside the heating box (4), an adsorption box (5) is fixedly arranged. At the two ends of the adsorption box (5), a VOCs inlet pipe (11) and an exhaust pipe (15) are respectively fixedly communicated.

2. An efficient and low-carbon VOCs end-treatment device according to claim 1, characterized in that: On one side of the heating box (4), a fan (37) is fixedly installed. The air inlet end of the fan (37) extends into the heating box (4) and is fixedly communicated with a filter (38). The air outlet end of the fan (37) is fixedly communicated with a first conduit (13). One end of the first conduit (13) away from the fan (37) is communicated with the VOCs inlet pipe (11). At the connection part of the first conduit (13) and the VOCs inlet pipe (11), a second valve (14) is fixedly installed.

3. An efficient and low-carbon VOCs end-treatment device according to claim 1, characterized in that: Inside the heating box (4), a placement seat (24) is fixedly arranged. Inside the placement seat (24), a plurality of electric heating tubes (25) are fixedly arranged. At the top inside the heating box (4), a temperature sensor (39) is fixedly installed.

4. An efficient low-carbon end treatment device for VOCs according to claim 1, characterized in that: In the middle of the exhaust pipe (15), a second conduit (17) is fixedly communicated. At the connection part of the second conduit (17) and the exhaust pipe (15), a fourth valve (18) is fixedly installed. The bottom end of the second conduit (17) extends into the heat exchanger (3) and is fixedly communicated with a first branch pipe (19). At the bottom end of the first branch pipe (19), a plurality of heat exchange tubes (20) are fixedly communicated. At the bottom between the plurality of heat exchange tubes (20), a second branch pipe (21) is fixedly communicated. At the bottom end of the second branch pipe (21), a third conduit (26) is fixedly communicated. One end of the third conduit (26) away from the second branch pipe (21) extends into the spray tower (2) and is connected with the adapter (32).

5. An efficient and low-carbon end-treatment device for VOCs according to claim 1, characterized in that: A third valve (16) is provided at one end of the exhaust pipe (15) away from the adsorption box (5), and a first valve (12) is provided at one end of the VOCs introduction pipe (11) away from the adsorption box (5).

6. The high-efficiency and low-carbon end treatment device for VOCs according to claim 1, characterized in that: An intake pipe (22) and an outlet pipe (23) are respectively and fixedly communicated on both sides of the heat exchanger (3), and one end of the outlet pipe (23) away from the heat exchanger (3) is communicated with the heating box (4).

7. An efficient and low-carbon end treatment device for VOCs according to claim 1, characterized in that: An exhaust port (10) is provided at the top of the spray tower (2), and a cold water inlet pipe (9) is fixedly communicated at the top of the connecting pipe (6), and one end of the cold water inlet pipe (9) away from the connecting pipe (6) extends to the outside.

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