Continuous exhaust emission monitoring device and monitoring method for volatile organic compounds (VOCs)

Abstract

The invention discloses a volatile organic compound VOCs continuous waste gas emission monitoring device and monitoring method, and relates to the technical field of volatile organic compound monitoring, the volatile organic compound VOCs continuous waste gas emission monitoring device comprises a box body and a detector, the front side of the box body is provided with a box door, and the box door is provided with a waste gas inlet pipe; an exhaust port is formed in the top of the rear side of the box body; a detection tube and a networking module are arranged at the top of the detector; a heat conduction frame is connected to the exterior of the detector in an attached mode, and a mounting plate connected with the box body is arranged on the rear side of the heat conduction frame. Grooves are uniformly formed in the outer side of the heat conduction frame; the outer side of the detector is sleeved with the heat conduction frame, then through the cooling pipe vertically penetrating through the heat conduction frame, heat of the detector can be guided out through the heat conduction frame, cooling is conducted through cooling water in the cooling pipe, the heat is brought out of the box body through the cooling water, and compared with the prior art, waste gas in the box body cannot be mixed with external air; therefore, the situation that the detector cannot detect the content of volatile organic matters in the waste gas inaccurately is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of volatile organic compound monitoring, and in particular to a volatile organic compound (VOCs) continuous waste gas emission monitoring device and a monitoring method. Background Art

[0002] Volatile organic compounds refer to organic compounds that have high saturated vapor pressure, low boiling point, small molecular weight, and are easily volatile at room temperature under standard conditions. This substance is one of the main pollutants in the atmosphere and is often represented by VOC or VOCs.

[0003] At present, volatile organic compounds in exhaust gas are generally continuously monitored through monitoring devices to ensure the accuracy of detection, wherein the detector is arranged in a monitoring box, the exhaust gas is passed into the monitoring box, and the exhaust gas in the monitoring box is detected by the detector.

[0004] However, continuous monitoring will cause the detector to reach high temperature due to long-term use. The applicant found that although the heat dissipation fan can effectively cool the detector, it will allow external air to enter the monitoring box, causing the exhaust gas in the monitoring box to be mixed with external air, thereby causing the detector to inaccurately detect the volatile organic compound content in the exhaust gas. For this reason, we propose a continuous exhaust gas emission monitoring device and monitoring method for volatile organic compounds (VOCs). Summary of the invention

[0005] The object of the present invention is to provide a volatile organic compound (VOCs) continuous waste gas emission monitoring device and monitoring method to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a volatile organic compound (VOCs) continuous exhaust gas emission monitoring device, comprising a box body and a detector, wherein a box door is provided on the front side of the box body, and an exhaust gas inlet pipe is provided on the box door;

[0007] An exhaust port is provided on the top of the rear side of the box body;

[0008] A detection tube and a networking module are arranged on the top of the detector;

[0009] The outside of the detector is bonded with a heat-conducting frame, and the rear side of the heat-conducting frame is provided with a mounting plate connected to the box body;

[0010] The outer side of the heat-conducting frame is evenly provided with grooves;

[0011] The heat-conducting frame is uniformly and vertically penetrated with cooling pipes, and the top of the heat-conducting frame is provided with a sealing ring which fits the detector, and the top height of the heat-conducting frame is lower than the top height of the detector;

[0012] A connecting rod is provided on the top of the detector, and an inspection plate is provided on the top of the connecting rod, and the inspection plate is detachably connected to the top of the box body;

[0013] Both sides of the box body are provided with fixing plates;

[0014] The bottoms of the cooling pipes are all connected to the transmission components;

[0015] The bottom of each transmission component is connected to the cooling water delivery component;

[0016] The tops of the cooling pipes are all connected to the recovery assembly, and the recovery assembly is connected to the cooling water delivery assembly;

[0017] The box body is provided with a blowing component and a transmission component.

[0018] As a preferred solution of the volatile organic compound (VOCs) continuous waste gas emission monitoring device described in the present invention, the cooling water delivery component includes a water tank, cooling water is arranged in the water tank, connecting plates are arranged on both sides of the water tank, and screw holes are arranged on the fixing plate and the connecting plate, and a water filling pipe is arranged on the water tank.

[0019] As a preferred solution of the volatile organic compound (VOCs) continuous waste gas emission monitoring device described in the present invention, the water tank is provided with a pump, the pump is provided with a water suction pipe connected to the water tank, the pump is provided with a water supply pipe, the water supply pipe is connected to a fixed pipe, the top of the fixed pipe is evenly connected to a vertical pipe, and the top of the vertical pipe passes through the bottom of the box.

[0020] As a preferred solution of the volatile organic compound (VOCs) continuous waste gas emission monitoring device described in the present invention, the transmission component includes a collecting tank whose left end is connected to the inner wall of the box body through a pin shaft, springs are provided at both ends of the right side of the bottom of the collecting tank, the top inner wall of the collecting tank is evenly connected with a hose 1, the bottom of the collecting tank is evenly connected with a hose 2, and the bottom of the hose 1 is interconnected with the hose 2.

[0021] As a preferred solution of the volatile organic compound (VOCs) continuous waste gas emission monitoring device described in the present invention, the right end of the collection tank is connected to a hose three, the hose three is connected to one end of the installation pipe, and the other end of the installation pipe passes through the box.

[0022] As a preferred solution of the volatile organic compound (VOCs) continuous waste gas emission monitoring device described in the present invention, the recovery component includes a connecting pipe connected to the top of the cooling pipe, the connecting pipe is connected to one end of the support pipe, the other end of the support pipe is connected to the radiator, the radiator is arranged on the water tank, and the radiator is provided with a recovery pipe connected to the water tank.

[0023] As a preferred solution of the volatile organic compound (VOCs) continuous waste gas emission monitoring device described in the present invention, a one-way drain valve is provided on the installation pipe, and the installation pipe is connected to the support pipe.

[0024] As a preferred solution of the volatile organic compound (VOCs) continuous exhaust emission monitoring device described in the present invention, the blowing assembly includes a motor arranged at the bottom of the box body, and fan blades are arranged on the output shaft of the motor. The fan blades are located below the fixed pipe and above the radiator.

[0025] As a preferred solution of the volatile organic compound (VOCs) continuous waste gas emission monitoring device described in the present invention, the transmission assembly includes a top rod vertically penetrating the bottom of the box body, the top of the top rod is in contact with the right side of the bottom of the collecting tank, a connecting frame is provided at the bottom of the top rod, a roller is provided on the connecting frame, an eccentric wheel is fittedly connected to the bottom of the roller, the eccentric wheel is provided on a support shaft, the support shaft is connected to a support seat through a bearing, the support seat is provided on the box body, a bevel gear 2 is provided on the left side of the support shaft, the bottom of the bevel gear 2 is meshedly connected with a bevel gear 1, the bevel gear 1 is provided on a rotating shaft, the rotating shaft is connected to the bottom of the box body through a bearing, a gear 2 is provided on the rotating shaft, and the gear 2 is meshedly connected with a gear 1 provided on the output shaft of the motor.

[0026] A monitoring method for a volatile organic compound (VOCs) continuous exhaust gas emission monitoring device specifically comprises the following steps:

[0027] The box and the water tank are fixed at the required position by the fixing plate and the connecting plate, and then the discharged exhaust gas is connected with the exhaust gas intake pipe, so that the discharged exhaust gas can enter the box and finally be discharged through the exhaust port. The detector is controlled by the networking module to detect continuously, and the exhaust gas in the box is detected through the detection tube;

[0028] During continuous testing, the cooling water in the water tank is pumped out by the pump, and then sent to the cooling pipe. The heat of the detector is conducted out through the heat conduction frame, and then the cooling pipe can take away the heat when passing through, and then recycled to the radiator for further heat dissipation, and finally recycled to the water tank to achieve recycling;

[0029] After the heat of the detector is conducted out through the heat conduction frame, it will cause the exhaust gas inside the box to heat up. Then, when the cooling pipe that transmits cold water contacts the high-temperature exhaust gas in the box, due to the temperature difference, the water vapor in the exhaust gas will condense into water droplets on the surface of the cooling pipe. The water droplets on the surface of the cooling pipe above the heat conduction frame will fall onto the heat conduction frame along the cooling pipe, and the heat conduction frame will be further cooled by water bath, and finally fall onto the collection tank. The water droplets on the surface of the cooling pipe below the heat conduction frame will fall directly onto the collection tank along the cooling pipe for collection.

[0030] The motor drives the fan blades to rotate, further blowing air to dissipate heat for the radiator, and at the same time makes the top rod rise and fall back and forth, so that the collection tank can swing back and forth, allowing the water droplets to flow downward quickly, so as to be discharged through the hose three times, and finally discharged to the support pipe through the installation pipe, so that the collected water droplets can also be recycled.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. A heat-conducting frame is sleeved on the outside of the detector, and then a cooling pipe vertically penetrates the heat-conducting frame, so that the heat of the detector can be conducted out through the heat-conducting frame, and then cooled by cooling water in the cooling pipe, so that the cooling water takes the heat out of the box. Compared with the prior art, the exhaust gas in the box will not be mixed with external air, thereby avoiding the situation where the detector cannot accurately detect the volatile organic matter content in the exhaust gas;

[0033] 2. The cooling water takes away the heat, then returns it to the radiator for further heat dissipation, and finally returns it to the water tank for recycling. At the same time, the motor is controlled to drive the fan blades to rotate, and the radiator is further cooled by air, which improves the heat dissipation efficiency of the cooling water and thus improves the recovery efficiency.

[0034] 2. After the heat of the detector is discharged through the heat conduction frame, the exhaust gas inside the box will be heated up. When the cooling pipe for transmitting cold water contacts the high-temperature exhaust gas in the box, due to the temperature difference, the water vapor in the exhaust gas will condense into water droplets on the surface of the cooling pipe. The water droplets on the surface of the cooling pipe above the heat conduction frame fall along the cooling pipe to the heat conduction frame, further cooling the heat conduction frame with a water bath to improve the cooling efficiency, and finally fall on the collecting tank. The water droplets on the surface of the cooling pipe below the heat conduction frame fall directly along the cooling pipe to the collecting tank for collection, and then are discharged through the third hose, and finally discharged to the supporting pipe through the mounting pipe, so that the collected water droplets can also be recycled. When the motor is working, the top rod can be lifted and lowered reciprocally, so that the collecting tank can swing back and forth, so that the water droplets flow downward quickly, and the water droplets falling on the collecting tank are prevented from being dried, so that all the water droplets on the collecting tank can be quickly and comprehensively discharged through the third hose, thereby improving the collection effect and efficiency of the water droplets. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the overall structure of a volatile organic compound (VOCs) continuous waste gas emission monitoring device and monitoring method of the present invention;

[0036] Figure 2 This is a schematic diagram of the internal structure of a box described in a volatile organic compound (VOCs) continuous exhaust gas emission monitoring device and monitoring method of the present invention;

[0037] Figure 3This is a schematic diagram of the heat-conducting frame structure described in a volatile organic compound (VOCs) continuous waste gas emission monitoring device and monitoring method of the present invention;

[0038] Figure 4 This is a schematic diagram of the transmission component structure of a volatile organic compound (VOCs) continuous exhaust gas emission monitoring device and monitoring method of the present invention;

[0039] Figure 5 It is an enlarged schematic diagram of the spring and push rod structure described in a volatile organic compound (VOCs) continuous exhaust gas emission monitoring device and monitoring method of the present invention;

[0040] Figure 6 The present invention is a schematic diagram of the structure of a blowing component and a transmission component described in a volatile organic compound (VOCs) continuous waste gas emission monitoring device and a monitoring method.

[0041] In the figure: 1, box body; 2, box door; 3, detector; 4, detection tube; 5, networking module; 6, heat conduction frame; 7, mounting plate; 8, groove; 9, cooling tube; 10, sealing ring; 11, connecting rod; 12, inspection plate; 13, fixing plate; 14, water tank; 15, connecting plate; 16, water supply pipe; 17, pump; 18, water extraction pipe; 19, water supply pipe; 20, fixing pipe; 21, vertical pipe; 22, connecting pipe; 23, Support pipe; 24. Radiator; 25. Recovery pipe; 26. Collection tank; 27. Spring; 28. Hose one; 29. ​​Hose two; 30. Hose three; 31. Mounting pipe; 32. Motor; 33. Fan blades; 34. Push rod; 35. Connecting frame; 36. Roller; 37. Gear one; 38. Gear two; 39. Rotating shaft; 40. Bevel gear one; 41. Bevel gear two; 42. Support shaft; 43. Support seat; 44. Eccentric wheel. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] As mentioned in the background technology, the continuous monitoring in the prior art will cause the detector to have a high temperature after long-term use. The applicant has found that although the heat dissipation fan can effectively cool the detector, it will allow external air to enter the monitoring box, causing the exhaust gas in the monitoring box to be mixed with external air, thereby causing the detector to inaccurately detect the volatile organic compound content in the exhaust gas. The present invention provides a volatile organic compound (VOCs) continuous exhaust gas emission monitoring device and monitoring method.

[0044] Example 1

[0045] Reference Figures 1 to 6 A volatile organic compound (VOCs) continuous exhaust gas emission monitoring device comprises a box body 1 and a detector 3, a box door 2 is arranged on the front side of the box body 1, and an exhaust gas inlet pipe is arranged on the box door 2;

[0046] An exhaust port is provided at the top of the rear side of the box body 1;

[0047] A detection tube 4 and a networking module 5 are provided on the top of the detector 3;

[0048] The outside of the detector 3 is bonded with a heat-conducting frame 6, and a mounting plate 7 connected to the box body 1 is provided on the rear side of the heat-conducting frame 6, and the mounting plate 7 is used to fix the heat-conducting frame 6;

[0049] The outer side of the heat-conducting frame 6 is evenly provided with grooves 8, which increases the area of ​​the heat-conducting frame 6 and facilitates heat dissipation;

[0050] The heat-conducting frame 6 is evenly and vertically penetrated with cooling tubes 9. The top of the heat-conducting frame 6 is provided with a sealing ring 10 that fits on the detector 3. The top height of the heat-conducting frame 6 is lower than the top height of the detector 3, so that water drops falling on the cooling tubes 9 are prevented from penetrating into the gap between the heat-conducting frame 6 and the detector 3.

[0051] A connecting rod 11 is provided on the top of the detector 3, and an inspection plate 12 is provided on the top of the connecting rod 11. The inspection plate 12 is detachably connected to the top of the box body 1, so that when the inspection plate 12 is removed, the detector 3 can be taken out upwards for inspection;

[0052] Both sides of the box body 1 are provided with fixing plates 13;

[0053] The bottom of the cooling pipe 9 is connected to the transmission component;

[0054] The bottom of the transmission components are all connected to the cooling water delivery components;

[0055] The top of the cooling pipe 9 is connected to the recovery component, and the recovery component is connected to the cooling water delivery component;

[0056] The box body 1 is provided with a blowing assembly and a transmission assembly.

[0057] The cooling water delivery assembly includes a water tank 14, in which cooling water is arranged. Connecting plates 15 are arranged on both sides of the water tank 14, and screw holes are arranged on the fixing plate 13 and the connecting plate 15. A water adding pipe 16 for adding water is arranged on the water tank 14.

[0058] The water tank 14 is provided with a pump 17, and the pump 17 is provided with a water suction pipe 18 connected to the water tank 14. The pump 17 is provided with a water supply pipe 19, and the water supply pipe 19 is connected to a fixed pipe 20. The top of the fixed pipe 20 is evenly connected to a vertical pipe 21, and the top of the vertical pipe 21 passes through the bottom of the box body 1. The cooling water is sent to the fixed pipe 20 through the water supply pipe 19, and then sent upward through the vertical pipe 21.

[0059] The transmission component includes a collecting tank 26 whose left end is connected to the inner wall of the box body 1 through a pin shaft, and springs 27 are provided at both ends of the right side of the bottom of the collecting tank 26. The top inner wall of the collecting tank 26 is evenly connected with a hose 1 28, and the bottom of the collecting tank 26 is evenly connected with a hose 2 29. The bottom of the hose 1 28 and the hose 2 29 are interconnected. The cooling water is sent into the hose 2 29 through the vertical pipe 21, and then sent to the cooling pipe 9 through the hose 1 28. The arrangement of the hose 1 28 and the hose 2 29 does not affect the back and forth swinging of the collecting tank 26.

[0060] The right end of the collecting tank 26 is connected to a hose 3 30 , and the hose 3 30 is connected to one end of a mounting pipe 31 , and the other end of the mounting pipe 31 passes through the box body 1 .

[0061] The recovery component includes a connecting pipe 22 connected to the top of the cooling pipe 9, the connecting pipe 22 is connected to one end of the supporting pipe 23, the other end of the supporting pipe 23 is connected to the radiator 24, the radiator 24 is arranged on the water tank 14, and the radiator 24 is provided with a recovery pipe 25 connected to the water tank 14. After the cooling water takes away the heat, it is sent to the supporting pipe 23 through the connecting pipe 22, and then sent to the radiator 24 for heat dissipation, and finally recovered to the water tank 14 through the recovery pipe 25.

[0062] A one-way drain valve is provided on the installation pipe 31 , and the installation pipe 31 is connected to the support pipe 23 , so that the water droplets collected in the collection tank 26 are sent to the installation pipe 31 through the hose 3 30 and then discharged into the support pipe 23 .

[0063] The blowing assembly includes a motor 32 arranged at the bottom of the box body 1, and a fan blade 33 is arranged on the output shaft of the motor 32. The fan blade 33 is located below the fixed pipe 20 and above the radiator 24 for blowing air to dissipate heat from the radiator 24.

[0064] Example 2

[0065] Reference Figures 3 to 6The transmission assembly includes a top rod 34 vertically penetrating the bottom of the box body 1, the top of the top rod 34 contacts the right side of the bottom of the collecting tank 26, a connecting frame 35 is provided at the bottom of the top rod 34, a roller 36 is provided on the connecting frame 35, an eccentric wheel 44 is fitted and connected to the bottom of the roller 36, the eccentric wheel 44 is arranged on the support shaft 42, the support shaft 42 is connected to the support seat 43 through a bearing, the support seat 43 is arranged on the box body 1, a bevel gear 2 41 is arranged on the left side of the support shaft 42, the bottom of the bevel gear 2 41 is meshed and connected with a bevel gear 1 40, and the bevel gear 1 40 is arranged on the rotating shaft 42. On the shaft 39, the rotating shaft 39 is connected to the bottom of the box body 1 through a bearing, and a gear 2 38 is arranged on the rotating shaft 39. The gear 2 38 is meshed and connected with the gear 1 37 arranged on the output shaft of the motor 32. The gear 1 37 drives the gear 2 38 to rotate, so that the rotating shaft 39 drives the bevel gear 1 40 to rotate, which can drive the bevel gear 2 41 to rotate, and then drive the support shaft 42 to rotate, so that the eccentric wheel 44 rotates to drive the roller 36 to rise and fall, and the push rod 34 can reciprocate to lift the collection groove 26, so that the heat dissipation of the radiator 24 can be accelerated at the same time, and the water droplets can be quickly and comprehensively collected.

[0066] The rest of the structure is the same as that of Example 1.

[0067] A monitoring method for a volatile organic compound (VOCs) continuous waste gas emission monitoring device, using a volatile organic compound (VOCs) continuous waste gas emission monitoring device in Example 2, specifically comprising the following steps:

[0068] The box body 1 and the water tank 14 are fixed at the required position by the fixing plate 13 and the connecting plate 15, and then the discharged exhaust gas is connected with the exhaust gas intake pipe, so that the discharged exhaust gas can enter the box body 1 and finally be discharged through the exhaust port. The detector 3 is controlled by the networking module 5 to continuously detect, and the exhaust gas in the box body 1 is detected by the detection tube 4;

[0069] During continuous detection, the cooling water in the water tank 14 is pumped out by the pump 17, and then sent to the cooling pipe 9. The heat of the detector 3 is extracted through the heat conduction frame 6, and then the cooling pipe 9 can take away the heat when passing through, and then recycled to the radiator 24 for further heat dissipation, and finally recycled to the water tank 14 to achieve recycling;

[0070] After the heat of the detector 3 is conducted out through the heat conducting frame 6, the exhaust gas inside the box 1 will be heated up. Then, when the cooling pipe 9 for transmitting cold water contacts the high-temperature exhaust gas in the box 1, due to the temperature difference, the water vapor in the exhaust gas will condense into water droplets on the surface of the cooling pipe 9. The water droplets on the surface of the cooling pipe 9 above the heat conducting frame 6 will fall onto the heat conducting frame 6 along the cooling pipe 9, and the heat conducting frame 6 will be further cooled by the water bath, and finally fall onto the collecting tank 26. The water droplets on the surface of the cooling pipe 9 below the heat conducting frame 6 will fall directly onto the collecting tank 26 along the cooling pipe 9 for collection.

[0071] The motor 32 drives the fan blades 33 to rotate, further blowing air to dissipate heat for the radiator 24, and at the same time, the top rod 34 is lifted and lowered reciprocally, so that the collecting tank 26 can swing back and forth, so that the water droplets can flow downward quickly, reducing the dried part, so that as much water as possible can be collected for easy discharge through the hose 3 30, and finally discharged to the support tube 23 through the mounting tube 31, so that the collected water droplets can also be recycled.

[0072] 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 volatile organic compound (VOCs) continuous waste gas emission monitoring device, characterized in that: include, A box body (1) and a detector (3), wherein a box door (2) is arranged on the front side of the box body (1), and an exhaust gas intake pipe is arranged on the box door (2); The top of the rear side of the box body (1) is provided with an exhaust port; A detection tube (4) and a networking module (5) are provided on the top of the detector (3); The detector (3) is externally bonded with a heat-conducting frame (6), and a mounting plate (7) connected to the box (1) is disposed on the rear side of the heat-conducting frame (6); Grooves (8) are evenly arranged on the outer side of the heat-conducting frame (6); The heat-conducting frame (6) is uniformly and vertically penetrated with cooling pipes (9); the top of the heat-conducting frame (6) is provided with a sealing ring (10) which fits the detector (3); the top height of the heat-conducting frame (6) is lower than the top height of the detector (3); A connecting rod (11) is provided on the top of the detector (3), and an inspection plate (12) is provided on the top of the connecting rod (11), and the inspection plate (12) is detachably connected to the top of the box body (1); Both sides of the box body (1) are provided with fixing plates (13); The bottom of each cooling pipe (9) is connected to the transmission component; The bottom of each transmission component is connected to the cooling water delivery component; The top of each cooling pipe (9) is connected to a recovery component, and the recovery component is connected to a cooling water delivery component; The box body (1) is provided with a blowing component and a transmission component.

2. The volatile organic compound (VOCs) continuous exhaust gas emission monitoring device according to claim 1, characterized in that: The cooling water delivery assembly comprises a water tank (14), wherein cooling water is arranged in the water tank (14), connecting plates (15) are arranged on both sides of the water tank (14), screw holes are arranged on the fixing plate (13) and the connecting plate (15), and a water supply pipe (16) is arranged on the water tank (14).

3. The volatile organic compound (VOCs) continuous exhaust gas emission monitoring device according to claim 2, characterized in that: The water tank (14) is provided with a pump (17), the pump (17) is provided with a water pumping pipe (18) connected to the water tank (14), the pump (17) is provided with a water supply pipe (19), the water supply pipe (19) is connected to a fixed pipe (20), the top of the fixed pipe (20) is evenly connected to a vertical pipe (21), and the top of the vertical pipe (21) passes through the bottom of the box body (1).

4. The volatile organic compound (VOCs) continuous exhaust gas emission monitoring device according to claim 3 is characterized by: The transmission component comprises a collecting trough (26) whose left end is connected to the inner wall of the box body (1) through a pin shaft, springs (27) are arranged at both ends of the right side of the bottom of the collecting trough (26), a hose 1 (28) is evenly connected to the inner wall of the top of the collecting trough (26), a hose 2 (29) is evenly connected to the bottom of the collecting trough (26), and the bottom of the hose 1 (28) and the hose 2 (29) are mutually connected.

5. The volatile organic compound (VOCs) continuous exhaust gas emission monitoring device according to claim 4, characterized in that: The right end of the collecting tank (26) is connected to a hose three (30), and the hose three (30) is connected to one end of a mounting pipe (31), and the other end of the mounting pipe (31) passes through the box body (1).

6. A volatile organic compound (VOCs) continuous waste gas emission monitoring device according to claim 5, characterized in that: The recovery component comprises a connecting pipe (22) connected to the top of the cooling pipe (9), the connecting pipe (22) is connected to one end of a supporting pipe (23), the other end of the supporting pipe (23) is connected to a radiator (24), the radiator (24) is arranged on a water tank (14), and a recovery pipe (25) connected to the water tank (14) is arranged on the radiator (24).

7. The volatile organic compound (VOCs) continuous exhaust gas emission monitoring device according to claim 6, characterized in that: A one-way drain valve is provided on the installation pipe (31), and the installation pipe (31) is in communication with the support pipe (23).

8. The volatile organic compound (VOCs) continuous exhaust gas emission monitoring device according to claim 6, characterized in that: The blowing assembly comprises a motor (32) arranged at the bottom of the box (1), and a fan blade (33) is arranged on the output shaft of the motor (32), and the fan blade (33) is located below the fixed pipe (20), and the fan blade (33) is located above the radiator (24).

9. A volatile organic compound (VOCs) continuous waste gas emission monitoring device according to claim 8, characterized in that: The transmission assembly comprises a top rod (34) vertically penetrating the bottom of the box body (1), the top of the top rod (34) contacts the right side of the bottom of the collecting tank (26), a connecting frame (35) is provided at the bottom of the top rod (34), a roller (36) is provided on the connecting frame (35), an eccentric wheel (44) is closely connected to the bottom of the roller (36), the eccentric wheel (44) is provided on the support shaft (42), the support shaft (42) is connected to the support seat (43) through a bearing, and the The support seat (43) is arranged on the housing (1), a bevel gear 2 (41) is arranged on the left side of the support shaft (42), the bottom of the bevel gear 2 (41) is meshingly connected with a bevel gear 1 (40), the bevel gear 1 (40) is arranged on a rotating shaft (39), the rotating shaft (39) is connected to the bottom of the housing (1) through a bearing, a gear 2 (38) is arranged on the rotating shaft (39), and the gear 2 (38) is meshingly connected with a gear 1 (37) arranged on the output shaft of the motor (32).

10. A monitoring method for a volatile organic compound (VOCs) continuous exhaust gas emission monitoring device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: The box body (1) and the water tank (14) are fixed at required locations by means of a fixing plate (13) and a connecting plate (15), and then the discharged waste gas is connected to the waste gas intake pipe, so that the discharged waste gas can enter the box body (1) and finally be discharged through the exhaust port. The detector (3) is controlled to continuously detect through the networking module (5), and the waste gas in the box body (1) is detected through the detection tube (4); During continuous detection, the cooling water in the water tank (14) is pumped out by the operation of the pump (17), and then sent into the cooling pipe (9). The heat of the detector (3) is conducted out through the heat-conducting frame (6), and then the cooling pipe (9) can take away the heat when passing through, and then recover it to the radiator (24) for further heat dissipation, and finally recover it to the water tank (14), so as to realize recycling; After the heat of the detector (3) is conducted away through the heat-conducting frame (6), the exhaust gas inside the box (1) will be heated up. Then, when the cooling pipe (9) for transmitting cold water contacts the high-temperature exhaust gas inside the box (1), due to the temperature difference, water vapor in the exhaust gas will condense into water droplets on the surface of the cooling pipe (9). The water droplets on the surface of the cooling pipe (9) located above the heat-conducting frame (6) will fall along the cooling pipe (9) onto the heat-conducting frame (6), further cooling the heat-conducting frame (6) in a water bath, and finally fall onto the collecting tank (26). The water droplets on the surface of the cooling pipe (9) located below the heat-conducting frame (6) will fall along the cooling pipe (9) directly onto the collecting tank (26) for collection. The motor (32) drives the fan blades (33) to rotate, further blowing air to dissipate heat for the radiator (24), and at the same time, the top rod (34) is lifted and lowered to make the collecting tank (26) swing back and forth, so that the water droplets flow downward quickly, so as to be discharged through the hose three (30), and finally discharged to the support pipe (23) through the mounting pipe (31), so that the collected water droplets can also be recycled.

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