A high and low temperature test chamber for methanol medium

Abstract

The utility model discloses a kind of high-low temperature test box of methanol medium, it is related to test equipment production technical field, including rack, further including setting on rack's heat preservation box, the temperature adjusting mechanism is arranged in the rack, the temperature adjusting mechanism is communicated with heat preservation box, heating cavity is arranged on heat preservation box, the sealing cover is connected in heating cavity top, the inner wall of heating cavity and sealing cover is all provided with explosion-proof coating.The high-low temperature test box of methanol medium provided by the utility model can accommodate methanol liquid in heating cavity, and explosion-proof coating is arranged on the inner wall of heating cavity and sealing cover, which can avoid direct contact between methanol and heating cavity and sealing cover, and the inside of heat preservation box is heated by temperature adjusting mechanism, indirect heating of heating cavity is realized, further prevent methanol from exploding during heating process, which can greatly reduce the risk of methanol in high-low temperature experiment process, improve experimental efficiency.

Description

Technical Field

[0001] This utility model relates to the field of test equipment manufacturing technology, and more specifically to a high and low temperature test chamber for methanol media. Background Technology

[0002] In special experimental tests, methanol is required as a heating medium, but due to its flammable and explosive properties, it is difficult to apply directly to conventional equipment on the market.

[0003] According to utility model patent application CN207413449U, published on May 29, 2018, a heating device for a fire-retardant and explosion-proof test of rubber parts in hot methanol is disclosed. The device includes an electrically heated constant-temperature water bath, inside which is a reagent container holder. The reagent container holder has a container pressure strip and a central cavity for accommodating the reagent container, which communicates with the outside of the holder. Its main technical advantages are: using water bath heating to provide heat energy eliminates the possibility of formaldehyde contacting open flame, thereby avoiding accidents such as combustion and explosion, resulting in higher safety. Furthermore, because water is used as the heating medium, compared to the air medium in commonly used electrically heated constant-temperature drying ovens, heat transfer is faster and more efficient, improving the working performance of the heating device.

[0004] In some tests, methanol is required as a medium for hot and cold tests. However, methanol is prone to explosion when heated. Therefore, a high and low temperature test chamber for methanol medium is proposed to solve the problem that direct heating of methanol in high and low temperature experiments can easily cause explosions. Utility Model Content

[0005] The purpose of this invention is to provide a high and low temperature test chamber for methanol media, which aims to solve the problem that direct heating of methanol in high and low temperature experiments with methanol media can easily cause explosion accidents.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A high and low temperature test chamber for methanol medium includes a frame and an insulated chamber mounted on the frame. The frame is equipped with a temperature regulating mechanism connected to the insulated chamber. The insulated chamber has a heating chamber with a sealing cover connected to the top. Both the heating chamber and the inner wall of the sealing cover are coated with an explosion-proof coating.

[0007] Preferably, the temperature regulating mechanism includes a heating unit, a cooling unit, a first connecting pipe, a second connecting pipe, a third connecting pipe, and a temperature sensor. The temperature sensor is fixedly installed inside the insulation box. The heating unit and the cooling unit are both fixedly installed inside the frame. One end of the first connecting pipe is connected to the insulation box, and the other end is connected to the heating unit. One end of the second connecting pipe is connected to the heating unit, and the other end is connected to the cooling unit. One end of the third connecting pipe is connected to the cooling unit, and the other end is connected to the insulation box.

[0008] Preferably, a positioning rod is fixedly installed on the top of the heating cavity, and the sealing cover is slidably connected to the top of the heating cavity through the positioning rod. A locking mechanism is provided on the sealing cover, and the sealing cover is fixedly connected to the positioning rod through the locking mechanism.

[0009] Preferably, the locking mechanism includes a positioning seat, a locking ring, and a locking head. The positioning seat is fixedly installed on the top of the sealing cover, and a positioning hole is provided inside the positioning seat. The locking head is slidably connected to the positioning seat. A through hole is provided on the outer wall of one side of the positioning seat. The locking head is provided with an abutment, which is inserted into the through hole. An abutment part is provided inside the locking ring. The locking ring is threadedly connected to the positioning seat. The abutment part drives the locking head to slide, so that the locking head abuts against the positioning rod.

[0010] Preferably, the locking mechanism further includes an elastic unit disposed between the locking head and the positioning seat.

[0011] Preferably, the device also includes a detection unit installed inside the frame, and the insulation box is connected to an exhaust duct.

[0012] The high and low temperature test chamber for methanol medium provided by this utility model, as described above, has the following beneficial effects: This invention features a heating chamber that can hold liquid methanol. Both the heating chamber and the inner wall of the sealing cap are coated with explosion-proof materials to prevent direct contact between methanol and these components. Furthermore, a temperature control mechanism heats the interior of the chamber indirectly, further preventing methanol from exploding during heating. This significantly reduces the risk of methanol explosions during high and low temperature experiments and improves experimental efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model; Figure 2 This is a schematic diagram of the temperature regulation mechanism provided in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the connection relationship of the heating cavity provided in an embodiment of the present utility model; Figure 4 A schematic diagram of the locking mechanism provided in an embodiment of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Frame; 2. Insulation box; 3. Temperature regulation mechanism; 31. Heating unit; 32. Cooling unit; 33. First connecting pipe; 34. Second connecting pipe; 35. Third connecting pipe; 36. Temperature sensor; 4. Heating chamber; 41. Positioning rod; 5. Sealing cover; 6. Explosion-proof coating; 7. Locking mechanism; 71. Positioning seat; 711. Through hole; 72. Locking ring; 721. Abutment part; 73. Locking head; 731. Abutment joint; 74. Positioning hole; 75. Elastic unit. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] Please see Figure 1 — Figure 4 A high and low temperature test chamber for methanol medium includes a frame 1 and an insulated box 2 mounted on the frame 1. The frame 1 is equipped with a temperature regulating mechanism 3, which is connected to the insulated box 2. The insulated box 2 is equipped with a heating chamber 4, and a sealing cover 5 is connected to the top of the heating chamber 4. Both the heating chamber 4 and the inner wall of the sealing cover 5 are equipped with an explosion-proof coating 6.

[0018] Specifically, such as Figure 1As shown, the insulation box 2 is fixedly installed on the outer wall of one side of the frame 1. A temperature regulating mechanism 3 is provided inside the frame 1. As an embodiment of this utility model, the temperature regulating mechanism 3 includes a heating unit 31, a cooling unit 32, a first connecting pipe 33, a second connecting pipe 34, a third connecting pipe 35, and a temperature sensor 36. Specifically, the heating unit 31 and the cooling unit 32 are both fixedly installed inside the frame 1. The two ends of the first connecting pipe 33 are respectively connected to the insulation box 2 and the heating unit 31. The two ends of the second connecting pipe 34 are respectively connected to the heating unit 31 and the cooling unit 32. The two ends of the third connecting pipe 35 are respectively connected to the heating unit 31 and the insulation box 2. In order to make the liquid flow smoother, a water pump can be set at any connection of the first connecting pipe 33, the second connecting pipe 34, and the third connecting pipe 35.

[0019] An installation hole is provided on the top of the heat preservation box 2. A heating cavity 4 is fixedly installed in the installation hole. A sealing cover 5 is connected to the heating cavity 4. A sealing gasket is provided on the inner edge of the top of the heating cavity 4 to keep the sealing cover 5 and the heating cavity 4 sealed and prevent leakage. Preferably, the sealing gasket can be provided on the sealing cover 5 or the inner edge of the top of the heating cavity 4.

[0020] Furthermore, both the sealing cover 5 and the heating chamber 4 are provided with an explosion-proof coating 6. Specifically, the explosion-proof coating 6 is a Teflon coating, which can prevent the methanol liquid from exploding.

[0021] This utility model has a heating chamber 4 that can contain liquid methanol. Both the heating chamber 4 and the inner wall of the sealing cover 5 are provided with an explosion-proof coating 6 to prevent methanol from directly contacting the heating chamber 4 and the sealing cover 5. Furthermore, the temperature regulation mechanism 3 heats the inside of the insulation box 2, thereby indirectly heating the heating chamber 4 and further preventing methanol from exploding during the heating process. This greatly reduces the danger of methanol in high and low temperature experiments and improves experimental efficiency.

[0022] As a further embodiment provided by this utility model, such as Figure 3 and Figure 4 As shown, a positioning rod 41 is fixed to the top of the heating cavity 4. In this embodiment of the present invention, there are four positioning rods 41, which are respectively installed at the four corners of the top of the heating cavity 4. The sealing cover 5 is slidably connected to the top of the heating cavity 4 through the four positioning rods 41. A locking mechanism 7 is provided on the sealing cover 5. The sealing cover 5 is fixedly connected to the positioning rods 41 through the locking mechanism 7, thereby maintaining the connection between the sealing cover 5 and the heating cavity 4.

[0023] As an embodiment provided by this utility model, such as Figure 3 and Figure 4As shown, the number of locking mechanisms 7 matches the number of positioning rods 41, and their positions also match.

[0024] The locking mechanism 7 includes a positioning seat 71, a locking ring 72, and a locking head 73. The positioning seat 71 is fixedly installed on the top of the sealing cover 5. A positioning hole 74 is provided on the positioning seat 71, through which the sealing cover 5 can be connected to the positioning rod 41. A sliding groove is provided on the positioning seat 71, and the locking head 73 is slidably connected to the sliding groove. Preferably, there are several sliding grooves, and the number of locking heads 73 is adapted to the number of sliding grooves, so that multiple locking heads 73 can maintain abutment against the positioning rod 41.

[0025] Furthermore, an abutment 731 is provided on the outer wall of the locking head 73, and a through hole 711 is provided on the peripheral wall of the positioning seat 71. The abutment 731 on the locking head 73 can pass through the through hole 711 and maintain abutment with the positioning rod 41.

[0026] like Figure 4 As shown, the locking ring 72 is threaded to the positioning seat 71. An abutment part 721 is provided inside the locking ring 72. The outer wall of one side of the locking head 73 is a wedge-shaped structure. The abutment part 721 is also wedge-shaped. By rotating the locking ring 72, the abutment part 721 inside the locking ring 72 abuts against the outer wall of the locking head 73, driving the locking head 73 to move inward. This causes the abutment part 731 to pass through the through hole 711 and abut against the outer wall of the positioning rod 41, locking the sealing cover 5 at the top of the heating cavity 4.

[0027] As a further embodiment provided by this utility model, such as Figure 4 As shown, the locking mechanism 7 also includes an elastic unit 75. Specifically, one end of the elastic unit 75 is connected to the locking head 73, and the other end is connected to the positioning seat 71. The elastic unit 75 itself elastically drives the locking head 73 to move away from the axis of the positioning seat 71, thereby driving the locking head 73 to abut against the abutment part 721 inside the locking ring 72. The elastic unit 75 is a compression spring.

[0028] As an embodiment provided by this utility model, such as Figure 2 As shown, it also includes a detection unit 8, which is installed inside the frame 1. The insulation box 3 is connected to an exhaust duct 9. Specifically, the detection unit 8 is a gas sensor used to detect whether there is methanol gas leakage inside the frame 1. In special cases, methanol needs to be added inside the insulation box 3. The detection unit 8 can detect methanol leakage. When the detection unit 8 detects methanol gas leakage, the control unit controls the temperature regulation mechanism 3 to stop and the fan connected to the exhaust duct 9 sucks away the gas inside the insulation box 2.

[0029] A one-way valve is connected to the exhaust duct 9. When the pressure in the insulation box 2 is too high, the gas can be automatically released. After the test is completed, the gas inside the insulation box 2 can also be extracted through the exhaust duct 9 to ensure the safety after the test.

[0030] The insulated box 2 is also connected to a one-way valve for allowing excess liquid to flow out, which is collected by an external collection device.

[0031] Working principle: The methanol liquid to be tested is placed into the heating chamber 4, and then the sealing cover 5 is put on and positioned by the positioning rod 41. The sealing cover 5 is locked onto the heating chamber 4 by the locking mechanism 7, and then the temperature regulation mechanism 3 is activated. The insulation liquid inside the insulation box 2 is drawn and circulated by a water pump. A control unit is also installed inside the frame 1. The control unit can be a control board, control computer, or other equipment or components that meet the program control requirements. The control unit detects the internal temperature of the insulation box 2 through the temperature sensor 36. When the temperature is detected to be too low, the heating unit 31 is activated to heat the flowing insulation liquid. When the temperature is detected to be too high, the cooling unit 32 is activated to cool the flowing insulation liquid.

[0032] Specifically, the heating unit 31 can be a heater, and the cooling unit 32 can be a liquid chiller, used to heat or cool the heat-insulating liquid.

[0033] The elastic element 75 mentioned in this article has an elastic coefficient that meets the technical requirements of the present invention.

[0034] Those skilled in the art will understand that other similar connection methods can also achieve this utility model. For example, welding, bonding, or screwing.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high and low temperature test chamber for methanol medium, comprising a frame (1), characterized in that, It also includes an insulated box (2) set on the frame (1), the frame (1) is provided with a temperature regulating mechanism (3), the temperature regulating mechanism (3) is connected to the insulated box (2), the insulated box (2) is provided with a heating chamber (4), the top of the heating chamber (4) is connected with a sealing cover (5), and the inner walls of the heating chamber (4) and the sealing cover (5) are both provided with an explosion-proof coating (6). The temperature regulation mechanism (3) includes a heating unit (31), a cooling unit (32), a first connecting pipe (33), a second connecting pipe (34), a third connecting pipe (35), and a temperature sensor (36). The temperature sensor (36) is fixedly installed inside the insulation box (2). The heating unit (31) and the cooling unit (32) are both fixedly installed inside the frame (1). One end of the first connecting pipe (33) is connected to the insulation box (2), and the other end is connected to the heating unit (31). One end of the second connecting pipe (34) is connected to the heating unit (31), and the other end is connected to the cooling unit (32). One end of the third connecting pipe (35) is connected to the cooling unit (32), and the other end is connected to the insulation box (2).

2. The high and low temperature test chamber for methanol medium according to claim 1, characterized in that, A positioning rod (41) is fixedly installed on the top of the heating cavity (4). The sealing cover (5) is slidably connected to the top of the heating cavity (4) through the positioning rod (41). A locking mechanism (7) is provided on the sealing cover (5). The sealing cover (5) is fixedly connected to the positioning rod (41) through the locking mechanism (7).

3. The high and low temperature test chamber for methanol medium according to claim 2, characterized in that, The locking mechanism (7) includes a positioning seat (71), a locking ring (72), and a locking head (73). The positioning seat (71) is fixedly installed on the top of the sealing cover (5), and a positioning hole (74) is provided inside the positioning seat (71). The locking head (73) is slidably connected to the positioning seat (71). A through hole (711) is provided on the outer wall of one side of the positioning seat (71). An abutment (731) is provided on the locking head (73), and the abutment (731) is inserted into the through hole (711). An abutment (721) is provided inside the locking ring (72), and the locking ring (72) is threadedly connected to the positioning seat (71). The locking head (73) is driven to slide through the abutment (721), so that the locking head (73) abuts against the positioning rod (41).

4. The high and low temperature test chamber for methanol medium according to claim 3, characterized in that, The locking mechanism (7) further includes an elastic unit (75), which is disposed between the locking head (73) and the positioning seat (71).

5. The high and low temperature test chamber for methanol medium according to claim 1, characterized in that, It also includes a detection unit (8), which is installed inside the frame (1), and the insulation box (2) is connected to an exhaust duct (9).

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