Chemical reaction cabinet without VOC (volatile organic compound) tail gas emission

Abstract

The utility model discloses a chemical reaction cabinet without VOC (volatile organic compound) tail gas emission, which relates to the technical field of chemical reaction cabinets and comprises a chemical reaction cabinet, a plurality of drawers are slidably connected below the front side of the chemical reaction cabinet, a cabinet door is movably connected above the front side of the chemical reaction cabinet, and a gas purification mechanism is fixedly connected at the top end of the chemical reaction cabinet. When the chemical reaction cabinet is used, generated VOC gas enters the neutralizing liquid chamber under the conveying of the reverse U-shaped pipe, harmful substances in the gas can be neutralized through the neutralization of a neutralizing solution, meanwhile, the spraying support can spray and clean the VOC gas, then the VOC gas is conveyed by the gas guide groove, and the VOC gas is discharged from the neutralizing liquid chamber through the gas guide groove. VOC gas can be discharged from the fixed insertion pipe, residual harmful substances in the VOC gas can be filtered and adsorbed through the molecular sieve net and the activated carbon adsorption net, VOC gas purification treatment is completed, pollution to the environment is avoided, and use of the chemical reaction cabinet is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical reaction cabinets, in particular to a chemical reaction cabinet without VOC tail gas emission. Background Art

[0002] The chemical industry is developing rapidly, but as the chemical industry develops, it also emits a large amount of chemical waste gas, among which VOC waste gas is the most serious one. VOC is also known as volatile organic compounds.

[0003] The existing technology has the following problems:

[0004] In a chemical laboratory, chemical reaction cabinets are needed to place various chemical reagents. Existing chemical reaction cabinets lack effective treatment for VOC gases emitted during the reaction and storage of chemical reagents, so that VOC gases are discharged to the outdoors and affect the air, which is not conducive to the use of chemical reaction cabinets. Utility Model Content

[0005] The utility model provides a chemical reaction cabinet without VOC tail gas emission, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A chemical reaction cabinet without VOC tail gas emission comprises a chemical reaction cabinet, wherein a plurality of drawers are slidably connected to the lower front side of the chemical reaction cabinet, a cabinet door is movably connected to the upper front side of the chemical reaction cabinet, and a purification mechanism is fixedly connected to the top of the chemical reaction cabinet.

[0008] The air purification mechanism includes an air purification box, which is fixedly connected to the top of the chemical reaction cabinet, and the left and right sides of the lower surface of the air purification box are fixedly connected with reverse U-shaped tubes, a neutralizing liquid chamber is opened at the lower part of the interior of the air purification box, one end of the reverse U-shaped tube away from the lower surface of the air purification box penetrates to the bottom of the inner wall of the neutralizing liquid chamber, a plurality of spray brackets are fixedly installed on the inner surface of the air purification box, air guide grooves are opened on the left and right sides of the top of the neutralizing liquid chamber, and conducting slots are opened on the left and right sides of the top of the air purification box, one end of the air guide groove away from the neutralizing liquid chamber penetrates to the bottom of the conducting slot, a fixed insert is slidably inserted above the inner surface of the conducting slot, and two fixing mechanisms are arranged on the left and right sides of the top of the air purification box, a metal filter is fixedly connected to the top of the inner surface of the fixed insert, an activated carbon adsorption net is fixedly connected to the middle of the inner surface of the fixed insert, and a molecular sieve is fixedly connected to the bottom of the inner surface of the fixed insert.

[0009] A further improvement of the technical solution of the utility model is that: the end of the reverse U-shaped tube away from the neutralization liquid chamber is fixedly connected to an air intake sleeve, the air intake sleeve is fixedly connected to the bottom of the clean air box and penetrates into the interior of the chemical reaction cabinet, and the bottom of the inner surface of the air intake sleeve is fixedly connected to a metal filter screen 2.

[0010] A further improvement of the technical solution of the utility model is that a support frame is fixedly connected to the middle part of the inner surface of the air intake sleeve, a motor is fixedly connected to the middle part of the support frame, and an output shaft of the motor is fixedly connected to a ventilator.

[0011] A further improvement of the technical solution of the utility model is that the spray bracket includes a connecting sleeve, the left and right ends of the connecting sleeve are fixedly connected to a mounting seat, the outer surface of the mounting seat is annularly provided with six fixing bolts, and the two mounting seats are fixedly installed on the left and right sides above the inner surface of the neutralization liquid chamber by fixing bolts.

[0012] A further improvement of the technical solution of the utility model is that: a plurality of nozzles are fixedly connected to the bottom of the outer surface of the connecting sleeve, a suction pump is fixedly connected to the middle part below the outer surface of the connecting sleeve, a liquid extraction pipe is fixedly connected to the bottom end of the suction pump, and the bottom end of the liquid extraction pipe passes through the bottom of the neutralization liquid chamber.

[0013] A further improvement of the technical solution of the utility model is that the fixing mechanism includes a connecting plate, the two connecting plates are respectively arranged on the front and rear sides of the top of the outer surface of the fixed insert and are fixedly connected to the top of the clean air box, and the top of the connecting plate is movably connected with a knob.

[0014] A further improvement of the technical solution of the utility model is that a movable groove is opened on the side of the connecting plate away from the fixed plug, the bottom of the knob penetrates into the movable groove and is fixedly connected with bevel gear 1, the outer surface of bevel gear 1 is meshedly connected with bevel gear 2, and the side of bevel gear 2 close to the fixed plug is fixedly connected with a transmission screw.

[0015] A further improvement of the technical solution of the utility model lies in that: a sliding groove is fixedly connected to the middle part of one side of the connecting plate close to the fixed plug, the end of the transmission screw away from the second bevel gear penetrates into the interior of the sliding groove and a sliding clamping plate is threadedly connected to the outer surface, fixed clamping grooves are provided on both the front and rear sides above the outer surface of the fixed plug, the sliding clamping plate is slidably connected to the interior of the sliding groove and the end close to the fixed plug penetrates into the interior of the fixed clamping groove.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] The utility model provides a chemical reaction cabinet without VOC tail gas emission. Through the mutual cooperation among a clean air box, a reverse U-shaped tube, a neutralizing liquid chamber, a spray bracket, an air guide groove, a fixed intubation tube, a fixing mechanism, a molecular sieve, an activated carbon adsorption net, and a metal filter, when the chemical reaction cabinet is used, the generated VOC gas will enter the interior of the neutralizing liquid chamber under the transportation of the reverse U-shaped tube, and the harmful substances in the gas can be neutralized by the neutralization of the neutralizing solution. At the same time, the spray bracket can also spray and clean the VOC gas. After that, the VOC gas can be discharged from the fixed intubation tube under the transportation of the air guide groove, and the harmful substances remaining in the VOC gas can be filtered and adsorbed through the molecular sieve and the activated carbon adsorption net, so as to complete the purification treatment of the VOC gas, avoid pollution to the environment, and facilitate the use of the chemical reaction cabinet.

[0018] The utility model provides a chemical reaction cabinet without VOC tail gas emission. Through the mutual cooperation among a fixed insert pipe, a fixed card slot, a connecting plate, a knob, a bevel gear one, a bevel gear two, a transmission screw and a sliding card plate, the fixed insert pipe can be fixed by inserting the sliding card plate into the interior of the fixed card slot, and by rotating the knob, the bevel gear one can drive the bevel gear two to rotate, so that the transmission screw can drive the sliding card plate to retract, which is convenient for removing the fixed insert pipe, so that the molecular sieve net, the activated carbon adsorption net and the metal filter net one can be cleaned, thereby avoiding the blockage of the molecular sieve net, the activated carbon adsorption net and the metal filter net one, and making the use of the air purification mechanism more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a cross-sectional structural diagram of the air purification mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the reverse U-shaped tube of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the spray bracket of the utility model;

[0023] Figure 5 It is a schematic cross-sectional structure diagram of the fixing mechanism of the utility model.

[0024] In the figure: 1. chemical reaction cabinet; 2. drawer; 3. cabinet door; 4. air purification mechanism; 41. air purification box; 42. reverse U-shaped pipe; 421. air inlet sleeve; 422. metal filter screen 2; 423. support frame; 424. motor; 425. fan guide; 43. neutralizing liquid chamber; 44. spray bracket; 441. connecting sleeve; 442. mounting seat; 443. fixing bolt; 444. nozzle; 445. suction pump; 446. liquid extraction pipe; 45. air guide groove; 46. fixed insert; 461. fixed card slot; 47. fixing mechanism; 471. connecting plate; 472. knob; 473. bevel gear 1; 474. bevel gear 2; 475. transmission screw; 476. sliding card plate; 49. activated carbon adsorption net; 48. metal filter screen 1; 410. molecular sieve net. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:

[0026] like Figure 1-2 As shown, the utility model provides a chemical reaction cabinet without VOC tail gas emission, including a chemical reaction cabinet 1, a plurality of drawers 2 are slidably connected to the lower front side of the chemical reaction cabinet 1, a cabinet door 3 is movably connected to the upper front side of the chemical reaction cabinet 1, and a clean air mechanism 4 is fixedly connected to the top of the chemical reaction cabinet 1. The clean air mechanism 4 includes a clean air box 41, the clean air box 41 is fixedly connected to the top of the chemical reaction cabinet 1, and the left and right sides of the lower surface of the clean air box 41 are fixedly connected to reverse U-shaped pipes 42. A neutralizing liquid chamber 43 is opened at the lower part of the clean air box 41, and one end of the reverse U-shaped pipe 42 away from the lower surface of the clean air box 41 penetrates to the lower part of the inner wall of the neutralizing liquid chamber 43, and the inner surface of the clean air box 41 is fixedly installed with a plurality of A spray bracket 44 is provided, air guide grooves 45 are provided on both sides of the top of the neutralizing liquid chamber 43, and conduction slots are provided on both sides of the top of the clean air box 41. One end of the air guide groove 45 away from the neutralizing liquid chamber 43 penetrates to the bottom of the conduction slot, and a fixed insert 46 is slidably inserted above the inner surface of the conduction slot. Two fixing mechanisms 47 are provided on both sides of the top of the clean air box 41. A metal filter 48 is fixedly connected to the top of the inner surface of the fixed insert 46, and the metal filter 48 can prevent external impurities from entering the inside of the clean air box 41. An activated carbon adsorption net 49 is fixedly connected to the middle of the inner surface of the fixed insert 46, and a molecular sieve net 410 is fixedly connected to the bottom of the inner surface of the fixed insert 46;

[0027] When the chemical reaction cabinet 1 is in use, the generated VOC gas will enter the interior of the neutralizing liquid chamber 43 under the transportation of the reverse U-shaped tube 42. The harmful substances in the VOC gas can be neutralized by the neutralizing solution in the neutralizing liquid chamber 43. At the same time, the spray bracket 44 can also spray and clean the VOC gas with the neutralizing solution. After that, the VOC gas can be discharged from the fixed insert pipe 46 under the transportation of the gas guide groove 45, and the harmful substances remaining in the VOC gas can be filtered and adsorbed through the molecular sieve mesh 410 and the activated carbon adsorption mesh 49, thereby completing the purification of the VOC gas, avoiding pollution to the environment, and facilitating the use of the chemical reaction cabinet 1.

[0028] like Figure 3 As shown, the utility model provides a chemical reaction cabinet without VOC tail gas emission, an end of the reverse U-shaped tube 42 away from the neutralizing liquid chamber 43 is fixedly connected to an air intake sleeve 421, the air intake sleeve 421 is fixedly connected to the bottom of the clean air box 41 and penetrates into the interior of the chemical reaction cabinet 1, a metal filter 422 is fixedly connected to the bottom of the inner surface of the air intake sleeve 421, a support frame 423 is fixedly connected to the middle of the inner surface of the air intake sleeve 421, a motor 424 is fixedly connected to the middle of the support frame 423, and a guide fan 425 is fixedly connected to the output shaft of the motor 424;

[0029] When purifying the VOC gas in the chemical reaction cabinet 1, by starting the motor 424, the guide fan 425 can be driven to rotate, so that the VOC gas in the chemical reaction cabinet 1 can be sucked, and under the transportation of the air intake sleeve 421 and the reverse U-shaped tube 42, it can enter the interior of the neutralization liquid chamber 43, and at the same time, the fixed impurities in the gas can be filtered through the metal filter 422, thereby preventing the impurities from entering the interior of the clean air box 41 and causing blockage inside the clean air box 41.

[0030] like Figure 4 As shown, the utility model provides a chemical reaction cabinet without VOC tail gas emission, the spray bracket 44 includes a connecting sleeve 441, the left and right ends of the connecting sleeve 441 are fixedly connected with a mounting seat 442, the outer surface of the mounting seat 442 is annularly provided with six fixing bolts 443, and the two mounting seats 442 are fixedly installed on the left and right sides above the inner surface of the neutralizing liquid chamber 43 by the fixing bolts 443, the bottom of the outer surface of the connecting sleeve 441 is fixedly connected with a plurality of spray heads 444, the middle part below the outer surface of the connecting sleeve 441 is fixedly connected with a suction pump 445, the bottom end of the suction pump 445 is fixedly connected with a liquid extraction pipe 446, and the bottom end of the liquid extraction pipe 446 penetrates to the bottom of the neutralizing liquid chamber 43;

[0031] The mounting base 442 can be fixed to the inner wall of the neutralizing liquid chamber 43 by the fixing bolt 443, so that the connecting sleeve 441 can be supported and fixed. When purifying the VOC gas, by starting the suction pump 445, the neutralizing solution at the bottom of the neutralizing liquid chamber 43 can be sucked through the suction pipe 446, and can be sprayed out from the nozzle 444 under the transportation of the connecting sleeve 441, so that the VOC gas in the neutralizing liquid chamber 43 can be sprayed and cleaned, thereby improving the purification effect of the VOC gas.

[0032] like Figure 5 As shown, the utility model provides a chemical reaction cabinet without VOC tail gas emission, the fixing mechanism 47 includes a connecting plate 471, the two connecting plates 471 are respectively arranged on the front and rear sides of the top of the outer surface of the fixed plug 46 and are fixedly connected to the top of the clean air box 41, the top of the connecting plate 471 is movably connected with a knob 472, the inside of the connecting plate 471 is provided with a movable groove on the side away from the fixed plug 46, the bottom of the knob 472 penetrates into the inside of the movable groove and is fixedly connected with a bevel gear 473, the outer surface of the bevel gear 473 is meshed with a bevel gear 473, and the bevel gear 473 is meshed with a bevel gear 473. Gear 2 474, a transmission screw 475 is fixedly connected to one side of bevel gear 2 474 near the fixed plug 46, a sliding groove is fixedly connected to the middle part of the side of connecting plate 471 near the fixed plug 46, the end of transmission screw 475 away from bevel gear 2 474 penetrates into the inside of the sliding groove and a sliding clamping plate 476 is threadedly connected to the outer surface, fixed clamping grooves 461 are opened on both sides of the front and rear of the outer surface of the fixed plug 46, the sliding clamping plate 476 is slidably connected to the inside of the sliding groove and the end near the fixed plug 46 penetrates into the inside of the fixed clamping groove 461;

[0033] By sliding the card plate 476 into the interior of the fixed card slot 461, the fixed insert tube 46 can be fixed, and by rotating the knob 472, the bevel gear 1 473 can drive the bevel gear 2 474 to rotate, so that the transmission screw 475 can be rotated, and the sliding card plate 476 can be driven to slide inside the sliding slot, so that it can be retracted from the interior of the fixed card slot 461, making it convenient to remove the fixed insert tube 46 from the interior of the conductive slot, so that the molecular sieve 410, the activated carbon adsorption net 49, and the metal filter 1 48 can be cleaned, thereby avoiding blockage of the molecular sieve 410, the activated carbon adsorption net 49, and the metal filter 1 48, making the use of the purification mechanism 4 more convenient.

[0034] The following is a detailed description of the working principle of the chemical reaction cabinet with no VOC tail gas emissions.

[0035] like Figure 1-5As shown, when the chemical reaction cabinet 1 is used, by starting the motor 424, the guide fan 425 can be driven to rotate, so that the VOC gas in the chemical reaction cabinet 1 can be sucked, and under the transportation of the air intake sleeve 421 and the reverse U-shaped tube 42, it can enter the interior of the neutralizing liquid chamber 43, and the harmful substances in the VOC gas can be neutralized by the neutralizing solution in the neutralizing liquid chamber 43. At the same time, by starting the suction pump 445, the bottom of the neutralizing liquid chamber 43 can be pumped through the liquid extraction pipe 446. The neutralization solution is sucked and can be sprayed out from the nozzle 444 under the transportation of the connecting sleeve 441, so as to spray and clean the VOC gas in the neutralization liquid chamber 43. After that, the VOC gas can be discharged from the fixed insert pipe 46 under the transportation of the gas guide groove 45, and the harmful substances remaining in the VOC gas can be filtered and adsorbed through the molecular sieve mesh 410 and the activated carbon adsorption mesh 49, thereby completing the purification of the VOC gas, avoiding pollution to the environment, and facilitating the use of the chemical reaction cabinet 1.

[0036] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A chemical reaction cabinet without VOC tail gas emission, comprising a chemical reaction cabinet (1), wherein a plurality of drawers (2) are slidably connected to the lower front side of the chemical reaction cabinet (1), and a cabinet door (3) is movably connected to the upper front side of the chemical reaction cabinet (1), characterized in that: The top of the chemical reaction cabinet (1) is fixedly connected with a gas purification mechanism (4); The air purification mechanism (4) comprises an air purification box (41), the air purification box (41) being fixedly connected to the top of the chemical reaction cabinet (1), the left and right sides of the lower surface of the air purification box (41) being fixedly connected with reverse U-shaped tubes (42), the lower part of the inner part of the air purification box (41) being provided with a neutralizing liquid chamber (43), the end of the reverse U-shaped tube (42) away from the lower surface of the air purification box (41) passing through to the lower part of the inner wall of the neutralizing liquid chamber (43), the inner surface of the air purification box (41) being fixedly installed with a plurality of spray brackets (44), the left and right sides of the top of the neutralizing liquid chamber (43) being provided with air guide grooves (45), The top left and right sides of the clean air box (41) are provided with conducting slots, one end of the air guide slot (45) away from the neutralizing liquid chamber (43) extends to the bottom of the conducting slot, a fixed insert (46) is slidably inserted above the inner surface of the conducting slot, and two fixing mechanisms (47) are provided on the top left and right sides of the clean air box (41), a metal filter screen (48) is fixedly connected to the top of the inner surface of the fixed insert (46), an activated carbon adsorption net (49) is fixedly connected to the middle of the inner surface of the fixed insert (46), and a molecular sieve net (410) is fixedly connected to the bottom of the inner surface of the fixed insert (46).

2. A chemical reaction cabinet without VOC tail gas emission according to claim 1, characterized in that: An air intake sleeve (421) is fixedly connected to one end of the reverse U-shaped tube (42) away from the neutralizing liquid chamber (43); the air intake sleeve (421) is fixedly connected to the bottom of the clean air box (41) and penetrates into the interior of the chemical reaction cabinet (1); a second metal filter (422) is fixedly connected to the bottom of the inner surface of the air intake sleeve (421).

3. A chemical reaction cabinet without VOC tail gas emission according to claim 2, characterized in that: A support frame (423) is fixedly connected to the middle of the inner surface of the air intake sleeve (421), a motor (424) is fixedly connected to the middle of the support frame (423), and an output shaft of the motor (424) is fixedly connected to a fan (425).

4. The chemical reaction cabinet without VOC tail gas emission according to claim 1, characterized in that: The spray bracket (44) comprises a connecting sleeve (441), the left and right ends of the connecting sleeve (441) are fixedly connected to a mounting seat (442), the outer surface of the mounting seat (442) is provided with six fixing bolts (443) in a ring shape, and the two mounting seats (442) are fixedly mounted on the left and right sides above the inner surface of the neutralizing liquid chamber (43) by means of the fixing bolts (443).

5. A chemical reaction cabinet without VOC tail gas emission according to claim 4, characterized in that: A plurality of nozzles (444) are fixedly connected to the bottom of the outer surface of the connecting sleeve (441), a suction pump (445) is fixedly connected to the middle portion below the outer surface of the connecting sleeve (441), a liquid extraction pipe (446) is fixedly connected to the bottom end of the suction pump (445), and the bottom end of the liquid extraction pipe (446) passes through the bottom of the neutralizing liquid chamber (43).

6. The chemical reaction cabinet without VOC tail gas emission according to claim 1, characterized in that: The fixing mechanism (47) comprises a connecting plate (471), wherein two connecting plates (471) are respectively arranged at the front and rear sides of the top of the outer surface of the fixing insert (46) and are fixedly connected to the top of the clean air box (41), and a knob (472) is movably connected to the top of the connecting plate (471).

7. A chemical reaction cabinet without VOC tail gas emission according to claim 6, characterized in that: A movable groove is provided inside the connecting plate (471) on a side away from the fixed insert tube (46); the bottom of the knob (472) penetrates into the movable groove and is fixedly connected to bevel gear 1 (473); the outer surface of bevel gear 1 (473) is meshingly connected to bevel gear 2 (474); and a transmission screw (475) is fixedly connected to the side of bevel gear 2 (474) close to the fixed insert tube (46).

8. The chemical reaction cabinet without VOC tail gas emission according to claim 7, characterized in that: A sliding groove is fixedly connected to the middle part of one side of the connecting plate (471) close to the fixed plug tube (46); one end of the transmission screw (475) away from the second bevel gear (474) passes through the interior of the sliding groove and a sliding clamping plate (476) is threadedly connected to the outer surface; fixed clamping grooves (461) are provided on both the front and rear sides above the outer surface of the fixed plug tube (46); the sliding clamping plate (476) is slidably connected to the interior of the sliding groove and one end close to the fixed plug tube (46) passes through the interior of the fixed clamping groove (461).

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