Self-cooling autoclave

Abstract

The utility model relates to the technical field of autoclave, in particular to a self-cooling autoclave. Comprising a device body and a water storage tank, a cooling pipeline and a first water suction pump are installed at the position, close to a storage net basket, in the device body, the water storage tank is installed on the outer side of the device body, a cold water tank is arranged on the upper half portion of the water storage tank, a hot water tank is arranged on the lower half portion of the water storage tank, and a hollow layer is arranged on the outer side, close to the hot water tank, of the water storage tank; a heat insulation layer is arranged between the cold water tank and the hot water tank, and a second water suction pump is installed in the cold water tank. After sterilization is completed, a first water suction pump pumps cold water into a cooling pipeline to absorb heat in the device body, water absorbing heat flows into a hot water tank through a backflow pipeline, and an exhaust fan enables high-pressure and high-heat steam in the device body to enter a hollow layer through an exhaust pipeline to conduct heating and heat preservation on the hot water tank; by adopting the mode, the waste heat of the device can be comprehensively and reliably recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure sterilizing pots, in particular to a self-cooling high-pressure sterilizing pot. Background Art

[0002] Autoclave, also known as high-pressure steam sterilizer, can be divided into portable autoclave and vertical autoclave. It is a device that uses electric heating wire to heat water to generate steam and maintain a certain pressure. It mainly consists of a sealed barrel, pressure gauge, exhaust valve, safety valve, electric heating wire, etc. Autoclave is a device used for disinfection and sterilization. It uses high-pressure steam to kill bacteria, viruses, spores and other microorganisms. This equipment is very important in the medical, laboratory, food processing and pharmaceutical industries.

[0003] The autoclave is usually heated to generate steam inside the pot. After reaching the pressure, the exhaust valve is opened to discharge the cold air. After the discharge is completed, the exhaust valve is closed and heating is continued to maintain the required steam pressure for a certain period of time. Then the sterilizer is powered off or the fire is turned off, and the autoclave is allowed to cool naturally before the exhaust valve is slowly opened to discharge the remaining gas. Only then can the lid be opened to take out the objects. The autoclave generates a lot of heat during the sterilization process and releases a lot of heat during the cooling process. This heat is usually recovered from the discharged high-temperature steam. However, the existing device is not convenient for recovering and utilizing the residual heat of the autoclave itself during use, which reduces the practicality and reliability of the device when in use. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a self-cooling high-pressure sterilizer to solve the problem that the high-pressure sterilizer generates a large amount of heat during the sterilization process and releases a large amount of heat during the cooling process. This heat is usually recovered from the discharged high-temperature steam. However, the existing device is not convenient for recovering and utilizing the waste heat of the high-pressure sterilizer itself during use, which reduces the practicability and reliability of the device when in use.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows: a self-cooling high-pressure sterilizing pot, including a device body and a water storage tank, an electric heating wire is installed at the bottom of the device body, and a heating liner is installed inside the device body, a storage basket is hung inside the heating liner, an insulation layer is arranged inside the device body, a drainage pipe is installed at the bottom of the device body, an exhaust pipe is installed at the top of the device body, and an exhaust fan is connected below the exhaust pipe, a cooling pipe is installed near the storage basket inside the device body, and a A liquid inlet pipe, and a return pipe is connected to the bottom of the cooling pipe, a water pump 1 is connected to the bottom of the liquid inlet pipe, and a two-position three-way valve is connected to the bottom of the water pump 1, the water storage tank is installed on the outside of the device body, and the outside of the water storage tank is wrapped with a thermal insulation sleeve, a cold water tank is arranged in the upper half of the water storage tank, and a hot water tank is arranged in the lower half of the water storage tank, a hollow layer is arranged on the outside of the water storage tank near the hot water tank, an exhaust and drain valve is installed at the bottom of the hollow layer, an insulating layer is arranged in the middle of the cold water tank and the hot water tank, and a water pump 2 is installed inside the cold water tank.

[0006] The beneficial effects of the utility model are as follows: after the sterilization is completed, the water pump pumps the cold water inside the cold water tank to the inside of the cooling pipe through the two-position three-way valve and the liquid inlet pipe to absorb the heat inside the device body, and the water after absorbing heat flows into the inside of the hot water tank through the reflux pipe. The exhaust fan uses the exhaust pipe to let the high-pressure and high-temperature steam inside the device body enter the inside of the hollow layer to heat and keep the hot water tank warm. In this way, the waste heat of the device can be fully and reliably recovered.

[0007] When the items are sterilized next time, the water pump 1 delivers the hot water in the hot water tank to the inside of the cooling pipe through the two-position three-way valve to preheat the device body, thereby reducing the energy consumption of the device and increasing the sterilization efficiency of the device.

[0008] In order to facilitate the high temperature steam to enter the interior of the hollow layer:

[0009] As a further improvement of the above technical solution: an exhaust valve is installed above the exhaust pipe.

[0010] The beneficial effect of this improvement is that during the cooling process, the exhaust valve is opened to allow high-temperature steam to enter the interior of the hollow layer through the exhaust pipe and the exhaust fan, and high-pressure and high-temperature steam enters the interior of the hollow layer through the exhaust pipe to heat and keep the hot water tank warm.

[0011] To facilitate cooling of the device:

[0012] As a further improvement of the above technical solution: the cooling pipe is arranged in a circular ring shape, and the cooling pipe and the device body are arranged with their axes coincident.

[0013] The beneficial effect of this improvement is: water pump 1 pumps the liquid inside the cold water tank to the inside of the cooling pipe through the two-position three-way valve, and then the liquid flows back into the hot water tank through the cooling pipe and the return pipe, which is convenient for the subsequent preheating of the device. At this time, water pump 1 pumps the hot water inside the hot water tank to the inside of the cooling pipe through the two-position three-way valve and the liquid inlet pipe to preheat the device, reduce the energy consumption of the device, and increase the sterilization efficiency of the device.

[0014] In order to facilitate the switching of the liquid pumped by the water pump:

[0015] As a further improvement of the above technical solution: two pipes are installed below the two-position three-way valve, one of which is inserted into the bottom of the cold water tank, and the other pipe is inserted into the bottom of the hot water tank.

[0016] The beneficial effect of this improvement is that when the device is in use, the two-position three-way valve is used to control the on-off of the two pipelines, so that the liquid pumped out by the water pump can be switched.

[0017] To facilitate the connection between the hot water tank and the cold water tank:

[0018] As a further improvement of the above technical solution: a water pumping pipe is installed below the second water pump.

[0019] The beneficial effect of this improvement is that the water pumping pipe can enable the water pump to conveniently and quickly pump the liquid inside the hot water tank to the inside of the cold water tank.

[0020] In order to facilitate the high temperature steam to enter the interior of the hollow layer:

[0021] As a further improvement of the above technical solution: the hollow layer is connected to the exhaust fan through a pipeline.

[0022] The beneficial effect of this improvement is that the exhaust fan can conveniently pump the high-temperature air inside the device body to the inside of the hollow layer through the pipeline to keep the hot water tank warm and heat it.

[0023] To facilitate drainage of the device:

[0024] As a further improvement of the above technical solution: a drain valve is installed on the drain pipe.

[0025] The beneficial effect of this improvement is that waste water inside the device body can be easily discharged through the drain valve.

[0026] To facilitate sealing of the device:

[0027] As a further improvement of the above technical solution: a rotating shaft is installed above the device body, and a storage rack is installed above the rotating shaft, a hand-cranked screw is installed in the middle of the storage rack, and a sealing cover plate is rotatably connected below the hand-cranked screw, and a pressure gauge is installed on the top of the sealing cover plate.

[0028] The beneficial effect of this improvement is: the shelf is rotated by the rotating shaft so that the sealing cover plate reaches the top middle part of the device body, and the sealing cover plate is pushed to seal the top of the device body by rotating the hand-cranked screw. During use, the pressure gauge detects the pressure inside the device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall main structure.

[0030] Figure 2 It is a schematic diagram of the overall structure from a top view.

[0031] Figure 3 It is a schematic diagram of the overall rear view structure.

[0032] Figure 4 This is a schematic diagram of the axonometric structure of the cooling pipe.

[0033] Figure 5 for Figure 1 Enlarged structural diagram at A in the middle.

[0034] In the figure: 1, device body; 11, electric heating wire; 12, heating liner; 13, storage basket;

[0035] 14. Insulation layer; 15. Drainage pipe; 2. Rotating shaft; 21. Shelf; 22. Hand-cranked screw;

[0036] 23. Sealing cover; 24. Pressure gauge; 3. Exhaust duct; 31. Exhaust fan; 4. Cooling duct; 41. Liquid inlet duct; 42. Return duct; 5. Water pump one; 51. Two-position three-way valve; 6. Water storage tank; 61. Insulation sleeve; 62. Cold water tank; 63. Hot water tank; 64. Hollow layer; 65. Exhaust and drain valve; 66. Insulation layer; 67. Water pump two. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0038] like Figure 1-5As shown, a self-cooling high-pressure sterilizer comprises a device body 1 and a water storage tank 6, an electric heating wire 11 is installed at the bottom of the device body 1, and a heating liner 12 is sleeved inside the device body 1, a storage basket 13 is hung inside the heating liner 12, an insulation layer 14 is arranged inside the device body 1, a drainage pipe 15 is installed at the bottom of the device body 1, an exhaust pipe 3 is installed at the top of the device body 1, and an exhaust fan 31 is connected below the exhaust pipe 3, a cooling pipe 4 is installed near the storage basket 13 inside the device body 1, and a liquid inlet pipe 41 is connected above the cooling pipe 4, and a reflux pipe 42 is connected below the cooling pipe 4, and the bottom of the liquid inlet pipe 41 is connected to the bottom of the cooling pipe 42. A water pump 5 is connected, and a two-position three-way valve 51 is connected below the water pump 5. The water tank 6 is installed on the outside of the device body 1, and the outside of the water tank 6 is wrapped with a thermal insulation sleeve 61. The upper part of the water tank 6 is provided with a cold water tank 62, and the lower part of the water tank 6 is provided with a hot water tank 63. The water tank 6 is provided with a hollow layer 64 near the outside of the hot water tank 63, and an exhaust and drain valve 65 is installed at the bottom of the hollow layer 64. A thermal insulation layer 66 is provided in the middle of the cold water tank 62 and the hot water tank 63. A water pump 2 67 is installed inside the cold water tank 62. After sterilization is completed, the water pump 5 pumps the cold water inside the cold water tank 62 to the cooling pipe 4 through the two-position three-way valve 51 and the liquid inlet pipe 41. The heat inside the device body 1 is absorbed by the interior, and the water after absorbing heat flows into the hot water tank 63 through the return pipe 42. The exhaust fan 31 uses the exhaust pipe 3 to let the high-pressure and high-temperature steam inside the device body 1 enter the hollow layer 64 to heat and keep the hot water tank 63. In this way, the waste heat of the device can be fully and reliably recovered. When the items are sterilized next time, the water pump 15 sends the hot water inside the hot water tank 63 to the inside of the cooling pipe 4 through the two-position three-way valve 51 to preheat the device body 1, reduce the energy consumption of the device, and increase the sterilization efficiency of the device. An exhaust valve is installed above the exhaust pipe 3. During the cooling process, the exhaust valve is opened and the high-temperature steam enters the exhaust pipe 3 and the exhaust fan 3 through. 1 enters the interior of the hollow layer 64, and the high-pressure and high-temperature steam enters the interior of the hollow layer 64 through the exhaust pipe 3 to heat and keep the hot water tank 63 warm. The cooling pipe 4 is set in a circular ring shape, and the cooling pipe 4 and the device body 1 are set with the axis coincident. The water pump 15 pumps the liquid in the cold water tank 62 to the interior of the cooling pipe 4 through the two-position three-way valve 51, and then the liquid flows back into the hot water tank 63 through the cooling pipe 4 and the return pipe 42, which is convenient for the subsequent preheating of the device. At this time, the water pump 15 pumps the hot water in the hot water tank 63 to the interior of the cooling pipe 4 through the two-position three-way valve 51 and the liquid inlet pipe 41, which can preheat the device, reduce the energy consumption of the device, and increase the efficiency of the sterilization of the device.Two pipes are installed below the two-position three-way valve 51, one of which is inserted into the bottom of the cold water tank 62, and the other is inserted into the bottom of the hot water tank 63. When the device is in use, the two-position three-way valve 51 controls the on-off of the two pipes to switch the liquid pumped out by the water pump 1 5. A pumping pipe is installed below the water pump 2 67, and the pumping pipe allows the water pump 2 67 to conveniently and quickly pump the liquid inside the hot water tank 63 to the inside of the cold water tank 62. The hollow layer 64 is connected to the exhaust fan 31 through a pipe, and the exhaust fan 31 can conveniently pump the high-temperature air inside the device body 1 to the inside of the hollow layer 64 through the pipe to keep the hot water tank 63 warm and heat it. A drain valve is installed on the drain pipe 15, through which the waste water inside the device body 1 can be easily discharged. A rotating shaft 2 is installed above the device body 1, and a rack 21 is installed above the rotating shaft 2. A hand screw 22 is installed in the middle of the rack 21, and a sealing cover plate 23 is rotatably connected below the hand screw 22. A pressure gauge 24 is installed on the top of the sealing cover plate 23. The rack 21 is rotated by the rotating shaft 2 so that the sealing cover plate 23 reaches the middle of the top of the device body 1. The sealing cover plate 23 is pushed by rotating the hand screw 22 to seal the top of the device body 1. The pressure gauge 24 detects the pressure inside the device body 1 during use.

[0039] The working principle of the utility model is as follows: when using the device, water and materials are put into the interior of the heating liner 12, the storage rack 21 is rotated to make the sealing cover plate 23 reach the top middle part of the device body 1, and the sealing cover plate 23 is pushed to seal the top of the device body 1 by rotating the hand-cranked screw 22. At this time, the electric heating wire 11 heats the heating liner 12. During the heating process, the pressure gauge 24 detects the pressure inside the device body 1. After the sterilization is completed, the water pump 5 pumps the cold water inside the cold water tank 62 to the inside of the cooling pipe 4 through the two-position three-way valve 51 and the liquid inlet pipe 41 to absorb the heat inside the device body 1. The water after absorbing heat flows into the inside of the hot water tank 63 through the reflux pipe 42. At this time, the exhaust is opened. Valve, the high-pressure and high-temperature steam inside the device body 1 enters the hollow layer 64 through the exhaust pipe 3 to heat and insulate the hot water tank 63. At this time, the insulation sleeve 61 insulates the water storage tank 6 as a whole, and the insulation layer 66 insulates the cold water tank 62 and the hot water tank 63 to ensure the temperature of the liquid inside the hot water tank 63. When the items are sterilized next time, the water pump 1 5 sends the hot water inside the hot water tank 63 to the inside of the cooling pipe 4 through the two-position three-way valve 51 to preheat the device body 1, reduce the energy consumption of the device, and increase the sterilization efficiency of the device. The reflux water enters the hot water tank 63. After the preheating is completed, the water pump 2 67 pumps the water inside the hot water tank 63 to the inside of the cold water tank 62 for subsequent use.

[0040] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0041] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A self-cooling high-pressure sterilizer, comprising a device body (1) and a water storage tank (6), wherein a heating wire (11) is installed at the bottom of the device body (1), and a heating liner (12) is provided inside the device body (1), a storage basket (13) is hung inside the heating liner (12), an insulation layer (14) is provided inside the device body (1), and a drainage pipe (15) is installed at the bottom of the device body (1), characterized in that: An exhaust pipe (3) is installed on the top of the device body (1), and an exhaust fan (31) is connected below the exhaust pipe (3); a cooling pipe (4) is installed inside the device body (1) near the storage basket (13); a liquid inlet pipe (41) is connected above the cooling pipe (4), and a return pipe (42) is connected below the cooling pipe (4); a water pump (5) is connected at the bottom of the liquid inlet pipe (41), and a two-position three-way valve (51) is connected below the water pump (5); the water storage tank (6) is installed on the device body The outer side of the body (1) and the outer side of the water tank (6) are wrapped with a heat preservation sleeve (61); the upper part of the water tank (6) is provided with a cold water tank (62), and the lower part of the water tank (6) is provided with a hot water tank (63); the water tank (6) is provided with a hollow layer (64) near the outer side of the hot water tank (63); an exhaust and drainage valve (65) is installed at the bottom of the hollow layer (64); a heat insulation layer (66) is provided in the middle of the cold water tank (62) and the hot water tank (63); and a water pump (67) is installed inside the cold water tank (62).

2. A self-cooling high pressure sterilizer according to claim 1, characterized in that: An exhaust valve is installed above the exhaust pipe (3).

3. A self-cooling high pressure sterilizer according to claim 1, characterized in that: The cooling pipeline (4) is arranged in a circular ring shape, and the cooling pipeline (4) and the device body (1) are arranged with their axes overlapping.

4. A self-cooling autoclave according to claim 1, characterized in that: Two pipes are installed below the two-position three-way valve (51), one of which is inserted into the bottom of the cold water tank (62), and the other is inserted into the bottom of the hot water tank (63).

5. The self-cooling autoclave according to claim 1, characterized in that: A water pumping pipeline is installed below the second water pump (67).

6. A self-cooling high pressure sterilizer according to claim 1, characterized in that: The hollow layer (64) is connected to the exhaust fan (31) via a pipeline.

7. A self-cooling autoclave according to claim 1, characterized in that: A drainage valve is installed on the drainage pipe (15).

8. The self-cooling autoclave according to claim 1, characterized in that: A rotating shaft (2) is installed above the device body (1), and a storage rack (21) is installed above the rotating shaft (2). A hand-cranked screw rod (22) is installed in the middle of the storage rack (21), and a sealing cover plate (23) is rotatably connected below the hand-cranked screw rod (22), and a pressure gauge (24) is installed on the top of the sealing cover plate (23).

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