Thermotank explosion-proof device

Abstract

The utility model discloses a thermotank explosion-proof device which comprises a box body, an air pressure detection valve is arranged in the box body, a first adsorption box is arranged on the outer side of the box body, adsorption liquid is arranged in the first adsorption box, and a first exhaust pipe communicated with the first adsorption box and the box body is arranged between the first adsorption box and the box body. An exhaust valve and an exhaust device are arranged in the first exhaust pipe, a second exhaust pipe communicated with the first adsorption box is arranged on the first adsorption box, the adsorption liquid comprises ethyl alcohol and water, the ratio of the ethyl alcohol to the water is 1: 1, a protective layer is arranged on the inner wall of the first adsorption box, the protective layer is a polytetrafluoroethylene layer, and the protective layer is a polytetrafluoroethylene layer. And the first adsorption box is provided with a liquid feeding port and a liquid discharging port. Compared with the prior art, the explosion-proof device of the constant-temperature box can purify and discharge organic matter gas in the constant-temperature box, reduce air pressure in the constant-temperature box, reduce the possibility of expansion and even explosion of the constant-temperature box, and reduce or eliminate potential safety hazards.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion-proof thermostat boxes, and in particular relates to an explosion-proof device for a thermostat box. Background Art

[0002] Thermostatic oven (oven) is a closed device with heating and constant temperature, which is commonly found in factories, colleges and universities, chemical industry, pharmaceutical industry, laboratories and other scientific research units. It has the functions of drying, aging, heat treatment, disinfection, heating, heat preservation, and moisture removal for samples. However, when drying some special samples, such as cleaning agents or inks containing a large amount of VOC, a large amount of gas will escape. At that time, the excessive air pressure inside the thermostatic oven will cause it to expand or even explode, posing a threat to the safety of the operator and causing damage to the workplace and other equipment. In order to prevent such safety hazards, a thermostatic oven explosion-proof device can be designed to prevent such accidents from happening. Utility Model Content

[0003] The utility model aims to provide an explosion-proof device for a thermostat box, which can purify and discharge organic gases in the thermostat box, reduce the internal air pressure of the thermostat box, reduce the possibility of expansion or even explosion of the thermostat box, and reduce or eliminate safety hazards.

[0004] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a constant temperature box explosion-proof device, including a box body, an air pressure detection valve is arranged in the box body, a first adsorption box is arranged on the outside of the box body, an adsorption liquid is arranged in the first adsorption box, a first exhaust pipe communicating with the first adsorption box and the box body is arranged, an exhaust valve and an exhaust device are arranged in the first exhaust pipe, and a second exhaust pipe communicating with the first adsorption box is arranged on the first adsorption box.

[0005] In one or more embodiments of the present invention, the adsorption liquid includes ethanol and water.

[0006] In one or more embodiments of the present invention, the ratio of ethanol to water is 1:1.

[0007] In one or more embodiments of the present invention, a protective layer is provided on the inner wall of the first adsorption box.

[0008] In one or more embodiments of the present invention, the protective layer is a polytetrafluoroethylene layer.

[0009] In one or more embodiments of the present invention, a liquid adding port and a liquid discharging port are provided on the first adsorption box.

[0010] In one or more embodiments of the present invention, the air pressure detection valve is located on the upper left side of the interior of the box.

[0011] In one or more embodiments of the present utility model, a second adsorption box is provided on the second exhaust pipe, and an adsorption layer is provided in the second adsorption box.

[0012] In one or more embodiments of the present invention, the adsorption layer is an activated carbon layer.

[0013] In one or more embodiments of the present invention, the second adsorption box is provided with an openable box door, and a sealing assembly is provided between the box door and the second adsorption box.

[0014] Compared with the prior art, the thermostat explosion-proof device of the utility model can purify and discharge the organic gas in the thermostat, reduce the internal air pressure of the thermostat, reduce the possibility of expansion or even explosion of the thermostat, and reduce or eliminate safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a structural schematic diagram of a thermostatic box explosion-proof device in one embodiment of the utility model.

[0017] Description of main reference numerals:

[0018] 11. Box body; 12. Heating and blowing device; 21. Air pressure detection valve; 31. First exhaust pipe; 32. First adsorption box; 33. Adsorption liquid; 34. Protective layer; 41. Liquid adding port; 42. Liquid draining port; 51. Second adsorption box; 52. Second exhaust pipe. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0020] like Figure 1As shown, a thermostatic box explosion-proof device in an embodiment of the utility model comprises a box body 11, and a heating and blowing device 12 is provided at the bottom of the box body 11. The heating and blowing device 12 can be used to dry the samples in the box body 11.

[0021] An air pressure detection valve 21 is provided in the box body 11, and a first adsorption box 32 is provided outside the box body 11. Adsorption liquid 33 is provided in the first adsorption box 32, and a first exhaust pipe 31 is provided between the first adsorption box 32 and the box body 11. An exhaust inlet valve and an exhaust device are provided in the first exhaust pipe 31, and a second exhaust pipe 52 communicating with the first adsorption box 32 is provided on the first adsorption box 32.

[0022] Specifically, the air pressure in the box 11 can be monitored by the air pressure detection valve 21. One end of the first exhaust pipe 31 is located in the box 11, and the other end of the first exhaust pipe 31 is located in the adsorption liquid 33, that is, the first exhaust pipe 31 is connected to the box 11 and the first adsorption box 32 respectively.

[0023] The exhaust device is a fan, and the gas in the box body 11 can be transported to the adsorption liquid 33 in the first adsorption box 32 through the exhaust valve and the exhaust device in the first exhaust pipe 31. Then, the gas is adsorbed by the adsorption liquid 33, and the harmless gas after adsorption can be directly discharged through the second exhaust pipe 52 or processed by other ventilation equipment.

[0024] The adsorption liquid 33 includes ethanol and water. Water is used to adsorb common acidic and alkaline gases, and ethanol is used to adsorb common organic gases, mainly including VOC.

[0025] The ratio of ethanol to water is 1: 1. The adsorption liquid 33 at this ratio can better adsorb acidic and alkaline gases and organic gases.

[0026] The inner wall of the first adsorption box 32 is provided with a protective layer 34. The adsorption liquid 33 forms acid, alkali and organic solvent after adsorption. The protective layer 34 can prevent the first adsorption box 32 from being corroded.

[0027] The protective layer 34 is a polytetrafluoroethylene layer. The polytetrafluoroethylene layer is heat-resistant, cold-resistant and high-temperature-resistant. It is resistant to acids, alkalis and various organic solvents and is almost insoluble in all solvents.

[0028] The first adsorption box 32 is provided with a liquid adding port 41 and a liquid draining port 42. The adsorption liquid 33 can be added to the first adsorption box 32 through the liquid adding port 41, and the saturated adsorption liquid 33 can be discharged through the liquid draining port 42. Preferably, a decomposition tank connected to the liquid draining port 42 can be provided, and the acid, alkali and organic solvent formed by the adsorption liquid 33 after adsorption are discharged into the decomposition tank through the liquid draining port 42. Ethanol, acetic acid, etc. can be added to the decomposition tank to dilute the acid, alkali and organic solvent before discharge.

[0029] The air pressure detection valve 21 is located at the upper left side of the box body 11, so as to monitor the air pressure in the box body 11.

[0030] The second exhaust pipe 52 is provided with a second adsorption box 51, and an adsorption layer is provided in the second adsorption box 51. Specifically, the gas can be adsorbed twice by the adsorption layer in the second adsorption box 51, so as to further ensure that the gas discharged through the second exhaust pipe 52 does not contain organic matter.

[0031] The adsorption layer is an activated carbon layer. Specifically, a multi-layer filter screen is arranged in the second adsorption box 51, and the activated carbon is installed on the filter screen. The activated carbon has a highly porous structure and adsorption capacity, and can adsorb volatile organic compounds.

[0032] The second adsorption box 51 is provided with an openable box door, which is hinged on the second adsorption box 51. A sealing component is provided between the box door and the second adsorption box 51. The openable box door facilitates replacement of the activated carbon layer in the second adsorption box 51. The sealing component may be a sealing rubber, which can prevent leakage of gas when passing through the second adsorption box 51.

[0033] When using, refer to Figure 1 As shown, when the thermostatic box is working normally, the air pressure detection valve 21 in the box is normally started. When the air pressure detection valve 21 detects that the air pressure in the box reaches a critical value, it will trigger the exhaust valve and the exhaust device to start, and the gas in the box body 11 is transported to the first adsorption box 32 through the first exhaust pipe 31 to be adsorbed by the adsorption liquid 33. The harmless gas after adsorption can be directly discharged through the second exhaust pipe 52 or processed by other ventilation equipment.

[0034] Compared with the prior art, the thermostat explosion-proof device of the utility model can purify and discharge the organic gas in the thermostat, reduce the internal air pressure of the thermostat, reduce the possibility of expansion or even explosion of the thermostat, and reduce or eliminate safety hazards.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A thermostatic box explosion-proof device, comprising a box body, characterized in that: An air pressure detection valve is arranged in the box body, a first adsorption box is arranged on the outside of the box body, adsorption liquid is arranged in the first adsorption box, a first exhaust pipe communicating with the first adsorption box and the box body is arranged, an exhaust valve and an exhaust device are arranged in the first exhaust pipe, and a second exhaust pipe communicating with the first adsorption box is arranged on the first adsorption box.

2. The thermostatic box explosion-proof device according to claim 1, characterized in that: The adsorption liquid includes ethanol and water.

3. The thermostatic box explosion-proof device according to claim 2, characterized in that: The ratio of ethanol to water is 1:

1.

4. The thermostatic box explosion-proof device according to claim 1, characterized in that: The inner wall of the first adsorption box is provided with a protective layer.

5. The thermostatic box explosion-proof device according to claim 4, characterized in that: The protective layer is a polytetrafluoroethylene layer.

6. The thermostatic box explosion-proof device according to claim 1, characterized in that: The first adsorption box is provided with a liquid adding port and a liquid discharging port.

7. The thermostatic box explosion-proof device according to claim 1, characterized in that: The air pressure detection valve is located on the upper left side of the interior of the box body.

8. The thermostatic box explosion-proof device according to claim 1, characterized in that: The second exhaust pipe is provided with a second adsorption box, and an adsorption layer is provided in the second adsorption box.

9. The explosion-proof device of the thermostatic box according to claim 8, characterized in that: The adsorption layer is an activated carbon layer.

10. The explosion-proof device of the thermostatic box according to claim 8, characterized in that: The second adsorption box is provided with a box door, and a sealing component is provided between the box door and the second adsorption box.

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