Liquid nitrogen refrigeration high and low temperature test box

Abstract

The utility model discloses a liquid nitrogen refrigeration high and low temperature test box, and particularly relates to the technical field of high and low temperature test boxes, the liquid nitrogen refrigeration high and low temperature test box comprises a test box body, gas treatment devices are arranged at the front end and the rear end of the test box body, and each gas treatment device comprises a gas suction treatment assembly and a drying treatment assembly; the gas suction treatment assembly is arranged on the inner and outer walls of the rear end of the test box body. Compared with the prior art, the liquid nitrogen refrigeration high and low temperature test box has the advantages that after the sealing grid baffle moves downwards, the side edge of the moving-out groove is opened, and the pushing plate moves forwards to push a drying agent needing to be replaced into the collecting frame for collecting work; a worker can open the upper end of the collecting and discharging bin to carry out new drying agent storage work; when the device is used, through simple and convenient gas drying treatment work, the problem of condensation caused by large moisture of gas entering the test box body is effectively solved, and meanwhile, the problem that a drying agent arranged at the rear end of the test box body is difficult to replace and move out after long-term use is further solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high and low temperature test box technical field more specifically, the utility model relates to a kind of liquid nitrogen refrigeration high and low temperature test box. BACKGROUND

[0002] Test box is the general term of the product of the industry of ring test, simulates natural climate environment in effective space range, and test type has: high and low temperature test box, xenon lamp ageing test box, ultraviolet ageing test box, box type rain shower box, rustproof grease, dripping device, purification clean storage cabinet, nitrogen storage cabinet, non-standard product etc., high and low temperature test box, generally will adopt compressor and liquid nitrogen refrigeration two refrigeration modes, liquid nitrogen refrigeration is just the low temperature characteristics of using liquid nitrogen itself, temperature reduction is carried out to test box inside, and in order to increase the stability of refrigeration, compressor refrigeration is also needed to be used in cooperation, and liquid nitrogen refrigeration high and low temperature test box in actual use process, first refrigeration is carried out using compressor, and in the compressor refrigeration process, due to lack of drying structure, moisture-containing air is easy to enter the inside of refrigeration compression, liquid nitrogen refrigeration high and low temperature test box is easy to cause ice blockage, affect liquid nitrogen refrigeration high and low temperature test box normal use. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide a liquid nitrogen refrigeration high and low temperature test box to solve the problems raised in the above background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of liquid nitrogen refrigeration high and low temperature test box, including test box body, gas treatment device is arranged in the front and rear end of the test box body, the gas treatment device includes: gas suction treatment component and drying treatment component, the gas suction treatment component is arranged in the inner wall and outer wall of the rear end of test box body.

[0005] In a preferred embodiment, the gas suction treatment component includes a treatment outer protection frame, a treatment bin, and a dust removal pump body. The dust removal pump body penetrates through the front and rear ends of the side edges of the treatment bin. The dust removal pump body is installed at the lower end of the treatment bin. The treatment bin is opened in the treatment outer protection frame. The treatment outer protection frame is installed at the rear end of the outer wall of the test box body.

[0006] In a preferred embodiment, the drying assembly includes: a gas drying frame, a heating dryer, a first air inlet pipe, a second air inlet pipe, a transmission pipe, a filter dehumidification chamber, a collection and discharge chamber, a removal trough, a sealing baffle, a first electro-hydraulic cylinder, a second electro-hydraulic cylinder, a push plate, a positioning block, a collection frame, and a sealing opening and closing door. The sealing opening and closing door is located at the front end of the collection frame, the filter dehumidification chamber is located inside the gas drying frame, the inner side of the positioning block is installed on the outer side wall of the gas drying frame, and the lower end of the second electro-hydraulic cylinder is located at the upper end of the positioning block.

[0007] In a preferred embodiment, the heating dryer is located at the lower end of the gas drying treatment frame, the collection and emission chamber is located at the upper end of the gas drying treatment frame, and the gas drying treatment frame is located above the filter and dehumidification chamber.

[0008] In a preferred embodiment, one end of the transmission pipe is installed on the inner and outer walls of the collection and discharge chamber, and the other end of the transmission pipe passes through the inner side of the outer protective frame and is installed inside the rear end of the test chamber body.

[0009] In a preferred embodiment, a one-way exhaust groove is provided on the side of the test chamber body, and the removal groove is provided on the inner and outer walls of the side of the gas drying treatment frame. The size of the front and rear ends of the sealing baffle is adapted to the size of the removal groove, and the inner side of the sealing baffle is connected to the outer wall of the side of the removal groove.

[0010] In a preferred embodiment, the lower end of the sealing baffle is installed at the output end of the first electric hydraulic cylinder, the lower end of the first electric hydraulic cylinder is installed inside the lower end of the outer protective frame, the output end of the second electric hydraulic cylinder is installed at the rear end of the push plate, the front end of the push plate is equipped with a pushing slant, the push plate is movably installed inside the filter dehumidification chamber, the rear end of the collection frame is connected to the front end of the removal groove, and the upper end of the collection and discharge chamber is provided with a sealing feeding plate.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] A liquid nitrogen-cooled high and low temperature test chamber, compared with the prior art, features a sliding desiccant compartment where the sealing baffle moves downwards, opening the side of the removal slot. A push plate moves forward to move the desiccant that needs replacing into the collection frame for collection. Workers can then open the top of the collection and discharge compartment to store new desiccant. This device effectively solves the problem of condensation caused by high moisture content in the gas entering the test chamber through simple and convenient gas drying, while also addressing the difficulty of replacing and removing the desiccant located at the rear of the test chamber over long-term use. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the gas processing device of this utility model.

[0015] Figure 3 This is a schematic diagram of the gas inhalation treatment component of this utility model.

[0016] Figure 4 This is a schematic diagram of the drying process component of this utility model.

[0017] The attached figures are labeled as follows: 1. Test chamber body; 2. Gas treatment device; 21. Gas intake treatment assembly; 211. Treatment outer protective frame; 212. Treatment chamber; 213. Dust removal pump body; 22. Drying treatment assembly; 221. First air inlet pipe; 222. Second air inlet pipe; 223. Gas drying treatment frame; 224. Heating dryer; 225. Sealing baffle; 226. First electric hydraulic cylinder; 227. Collection frame; 228. Sealing opening and closing door; 229. Collection and discharge chamber; 220. Filtering and dehumidification chamber; 2201. Positioning block; 2202. Push plate; 2203. Second electric hydraulic cylinder; 2204. Removal groove; 2205. Transmission pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] As attached Figures 1-4 As shown, this utility model provides a liquid nitrogen refrigeration high and low temperature test chamber, including a test chamber body 1. Gas treatment devices 2 are provided at the front and rear ends of the test chamber body 1. The gas treatment devices 2 include a gas intake treatment component 21 and a drying treatment component 22. The gas intake treatment component 21 is provided on the inner and outer walls of the rear end of the test chamber body 1.

[0020] The gas intake treatment assembly 21 includes: a treatment outer protective frame 211, a treatment chamber 212, and a dust removal pump body 213. The front end of the dust removal pump body 213 passes through the front and rear ends of the side of the treatment chamber 212, and the lower end of the dust removal pump body 213 is installed inside the treatment chamber 212. The treatment chamber 212 is opened inside the treatment outer protective frame 211, and the front end of the treatment outer protective frame 211 is installed on the rear outer wall of the test chamber body 1.

[0021] The drying treatment assembly 22 comprises a gas drying treatment frame 223, a heating dryer 224, a first gas inlet pipeline 221, a second gas inlet pipeline 222, a transmission pipeline 2205, a filter dehumidification bin 220, a collection and discharge bin 229, a moving-out groove 2204, a sealing baffle 225, a first electric hydraulic cylinder 226, a second electric hydraulic cylinder 2203, a pushing plate 2202, a positioning block 2201, a collection frame 227 and a sealing opening and closing door 228. The sealing opening and closing door 228 is arranged at the front end of the collection frame 227. The filter dehumidification bin 220 is arranged in the gas drying treatment frame 223. The positioning block 2201 is arranged on the outer wall of the side of the gas drying treatment frame 223. The second electric hydraulic cylinder 2203 is arranged on the upper end of the positioning block 2201. The heating dryer 224 is arranged at the lower end of the gas drying treatment frame 223. The collection and discharge bin 229 is arranged at the upper end of the gas drying treatment frame 223. The gas drying treatment frame 223 is arranged at the upper end of the filter dehumidification bin 220. The transmission pipeline 2205 is arranged at one end of the inner and outer walls of the side of the collection and discharge bin 229. The other end of the transmission pipeline 2205 is arranged at the inner rear end of the test box body 1. The test box body 1 is provided with a one-way exhaust groove at the side. The moving-out groove 2204 is arranged at the inner and outer walls of the side of the gas drying treatment frame 223. The sealing baffle 225 is matched with the moving-out groove 2204 in size. The sealing baffle 225 is arranged at the inner wall of the side of the moving-out groove 2204. The sealing baffle 225 is arranged at the output end of the first electric hydraulic cylinder 226. The first electric hydraulic cylinder 226 is arranged at the lower end of the processing outer protection frame 211. The output end of the second electric hydraulic cylinder 2203 is arranged at the rear end of the pushing plate 2202. The pushing plate 2202 is arranged at the front end of the filter dehumidification bin 220. The collection frame 227 is arranged at the front end of the moving-out groove 2204. The collection and discharge bin 229 is provided with a sealing feeding plate at the upper end.

[0022] The specific implementation method is as follows: When using this utility model, external gas can be drawn into the gas drying frame 223 by activating the dust removal pump 213. The gas is then heated and dried by the heating dryer 224 located at the lower end of the gas drying frame 223. After the heating dryer 224 completes the heating and drying process, the gas rises and passes through the dryer inside the filter dehumidification chamber 220 located at the upper end for further drying and dehydration. After dehydration, the gas gradually cools as it rises and enters the collection and discharge chamber 229, which is then transported to the test chamber body 1 via the transmission pipe 2205 for use. When the desiccant inside the drying component 22 needs to be replaced after long-term use, the first electric hydraulic cylinder 226 and the second electric hydraulic cylinder 2203 can be activated. When the first electric hydraulic cylinder 226 and the second electric hydraulic cylinder 2203 are started, they respectively drive the sealing baffle 225 and the push plate 2202 installed at the output end to move. The push plate 2202 moves forward and the sealing baffle 225 moves downward. After the sealing baffle 225 moves downward, the side of the removal slot 2204 opens. The push plate 2202 moves forward and can push the desiccant that needs to be replaced into the collection frame 227 for collection. The staff can open the upper end of the collection and discharge chamber 229 to store new desiccant. When in use, the device effectively solves the problem of condensation caused by high moisture content in the gas entering the test chamber body 1 through simple and convenient gas drying treatment. At the same time, it further solves the problem of difficulty in replacing and removing the desiccant set at the rear end of the test chamber body 1 for long-term use.

[0023] The working principle of this utility model is as follows: When using this utility model, external gas is drawn into the gas drying frame 223 by activating the dust removal pump 213. The gas is then heated and dried by the heating dryer 224 located at the lower end of the gas drying frame 223. After the heating dryer 224 completes the heating and drying process, the gas rises and passes through the dryer inside the filter dehumidification chamber 220 located at the upper end for further drying and dehydration. After dehydration, the gas gradually cools as it rises and enters the collection and discharge chamber 229, where it is transported to the test chamber body 1 via the transmission pipe 2205. When the desiccant inside the drying unit 22 needs to be replaced after long-term use, the first electric hydraulic cylinder 226 and the second electric hydraulic cylinder 2203 can be activated. After the first electric hydraulic cylinder 226 and the second electric hydraulic cylinder 2203 are activated, they respectively drive the sealing baffle 225 and the push plate 2202 installed at the output end to move. The push plate 2202 moves forward and the sealing baffle 225 moves downward. After the sealing baffle 225 moves downward, the side of the removal slot 2204 opens, and the push plate 2202 moves forward to push the desiccant that needs to be replaced into the collection frame 227 for collection.

[0024] Finally should be explained a few points is: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad, can be mechanical or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0025] Second: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other;

[0026] Finally: the above only for the preferred embodiment of the utility model has, and does not for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A liquid nitrogen-cooled high and low temperature test chamber, comprising a test chamber body (1), characterized in that: The test chamber body (1) is equipped with gas treatment devices (2) at the front and rear ends; The gas treatment device (2) includes a gas inhalation treatment component (21) and a drying treatment component (22), wherein the gas inhalation treatment component (21) is disposed on the inner and outer walls of the rear end of the test chamber body (1).

2. The liquid nitrogen-cooled high and low temperature test chamber according to claim 1, characterized in that: The gas intake treatment assembly (21) includes: a treatment outer protective frame (211), a treatment chamber (212) and a dust removal pump body (213). The front end of the dust removal pump body (213) passes through the front and rear ends of the side of the treatment chamber (212). The lower end of the dust removal pump body (213) is installed inside the treatment chamber (212). The treatment chamber (212) is opened inside the treatment outer protective frame (211). The front end of the treatment outer protective frame (211) is installed on the rear outer wall of the test chamber body (1).

3. The liquid nitrogen refrigeration high and low temperature test chamber according to claim 2, characterized in that: The drying process assembly (22) includes: a gas drying process frame (223), a heating dryer (224), a first air inlet pipe (221), a second air inlet pipe (222), a transmission pipe (2205), a filter dehumidification chamber (220), a collection and discharge chamber (229), a removal slot (2204), a sealing baffle (225), a first electric hydraulic cylinder (226), a second electric hydraulic cylinder (2203), a push plate (2202), a positioning block (2201), a collection frame (227), and a sealing opening and closing door (228). The sealing opening and closing door (228) is located at the front end of the collection frame (227). The filter dehumidification chamber (220) is located inside the gas drying process frame (223). The inner side of the positioning block (2201) is installed on the outer side wall of the gas drying process frame (223). The lower end of the second electric hydraulic cylinder (2203) is located at the upper end of the positioning block (2201).

4. The liquid nitrogen refrigeration high and low temperature test chamber according to claim 3, characterized in that: The heating dryer (224) is located at the lower end of the gas drying treatment frame (223), the collection and discharge chamber (229) is located at the upper end of the gas drying treatment frame (223), and the gas drying treatment frame (223) is located at the upper end of the filter dehumidification chamber (220).

5. A liquid nitrogen-cooled high and low temperature test chamber according to claim 3, characterized in that: One end of the transmission pipe (2205) is installed on the inner and outer walls of the collection and discharge chamber (229), and the other end of the transmission pipe (2205) passes through the inner side of the outer protective frame (211) and is installed inside the rear end of the test chamber body (1).

6. The liquid nitrogen refrigeration high and low temperature test chamber according to claim 3, characterized in that: The test chamber body (1) has a one-way exhaust groove on its side. The removal groove (2204) is opened on the inner and outer walls of the side of the gas drying treatment frame (223). The size of the front and rear ends of the sealing baffle (225) is matched with the size of the removal groove (2204). The inner side of the sealing baffle (225) is connected to the outer wall of the side of the removal groove (2204).

7. The liquid nitrogen refrigeration high and low temperature test chamber according to claim 3, characterized in that: The lower end of the sealing baffle (225) is installed at the output end of the first electric hydraulic cylinder (226). The lower end of the first electric hydraulic cylinder (226) is installed inside the lower end of the outer protective frame (211). The output end of the second electric hydraulic cylinder (2203) is installed at the rear end of the push plate (2202). The front end of the push plate (2202) is equipped with a pusher block. The push plate (2202) is movably installed inside the filter dehumidification chamber (220). The rear end of the collection frame (227) is connected to the front end of the removal groove (2204). The upper end of the collection discharge chamber (229) is provided with a sealing feeding plate.

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