High-temperature and high-pressure sterilization device for experimental animal breeding supplies

Abstract

The utility model relates to the field of experimental animal breeding article treatment, and discloses a high-temperature and high-pressure sterilization device for experimental animal breeding articles, which comprises a barrel and a sterilization barrel arranged in the barrel, a pressure relief safety valve is arranged on the side wall of the barrel in a penetrating manner, one side of the pressure relief safety valve is connected with a steam pipe, and the tail end of the steam pipe is connected with a heat exchange box. An air inlet pipe is arranged on the side wall of the rear end of the heat exchange box in a penetrating mode, the tail end of the air inlet pipe is connected with a heating box, the outlet end of the heating box is connected with an induced draft fan, an air outlet pipe is arranged at the outlet end of the induced draft fan, and an air pipe is arranged on the air outlet pipe. And the air pipe penetrates through the cylinder body and then is connected with a spiral heating pipe arranged between the cylinder body and an interlayer of the sterilization barrel. Through cooperative use of the heat exchange box, the induced draft fan and the spiral heating pipe, the heat exchange box recovers waste gas heat energy, the sterilization device is preheated, the heating rate is increased, and the problems of heat pollution and energy waste of a traditional device are solved.

Description

Technical Field

[0001] This utility model relates to the field of laboratory animal breeding supplies processing, specifically to a high-temperature and high-pressure sterilization device for laboratory animal breeding supplies. Background Technology

[0002] In laboratory animal facilities, the sterilization of cages, bedding, and other supplies must meet both biosafety and environmental protection standards. Traditional high-temperature, high-pressure sterilization devices use electric boilers to generate saturated steam for moist heat sterilization, then directly discharge the high-temperature exhaust gas into the atmosphere via a pressure relief valve. This presents the following technical problems: 1) Instantaneous steam discharge can easily cause harm to the surrounding environment and personnel, and also wastes energy; 2) Existing equipment fails to effectively utilize the residual heat of the exhaust gas, requiring secondary drying of residual moisture on the surface of sterilized instruments, thus extending the operation cycle. Furthermore, traditional equipment relies solely on direct heating from the sterilizer during the preheating stage, resulting in a low heating rate and increased sterilization preparation time. Utility Model Content

[0003] The purpose of this invention is to provide a high-temperature and high-pressure sterilization device for laboratory animal breeding products, so as to solve the problems in the background art mentioned above.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a high-temperature and high-pressure sterilization device for laboratory animal breeding supplies, comprising a cylinder and a sterilization chamber disposed within the cylinder, a pressure relief safety valve being provided through the side wall of the cylinder, a steam pipe being connected to one side of the pressure relief safety valve, a heat exchange box being connected to the end of the steam pipe, an air inlet pipe being provided through the rear side wall of the heat exchange box, a heating box being connected to the end of the air inlet pipe, an induced draft fan being connected to the outlet end of the heating box, an air outlet pipe being provided at the outlet end of the induced draft fan, an air pipe being provided on the air outlet pipe, and an air pipe being provided after passing through the cylinder and connecting to a spiral heating pipe disposed between the cylinder and the sterilization chamber.

[0005] Furthermore, the cylinder is equipped with a heating tank, an electric heating wire is fixedly installed on the bottom wall of the heating tank, a liquid level gauge is fixedly installed on the side wall of the heating tank, a water supply pipe is provided through the side wall of the heating tank, a valve is provided on the water supply pipe, and a one-way valve is also provided on the water supply pipe.

[0006] Furthermore, a sealing cover is provided at the top of the cylinder, and a rubber sealing gasket is provided at the connection between the sealing cover and the cylinder. The sealing cover is pressed or opened by a clamping buckle provided on the side wall of the cylinder, and the clamping buckle is equipped with a rotating handle.

[0007] Furthermore, a dustproof and breathable mesh is provided through the lower end of the front wall of the heat exchange box, a steam heat exchange pipe connected to the steam pipe is provided inside the heat exchange box, and a vent pipe is provided at the end of the steam heat exchange pipe that penetrates the right side wall of the heat exchange box.

[0008] Furthermore, the sterilization chamber has a through hole at the bottom.

[0009] Furthermore, an exhaust pipe is provided at the end of the spiral heating tube, an exhaust valve is provided on the exhaust pipe, and a steam valve is provided on the steam pipe.

[0010] Furthermore, a heating wire is provided inside the heating chamber.

[0011] This utility model has the following beneficial effects:

[0012] This invention provides a high-temperature, high-pressure sterilization device for laboratory animal breeding supplies. Compared with existing technologies, it offers the following advantages: This technology utilizes a heat exchange box, spiral heating tubes, and a heating box in conjunction with an induced draft fan and sterilization chamber. During the sterilization exhaust stage, a gas-to-gas heat exchanger recovers the heat energy from the exhaust gas, preheating the air before it is returned to the sterilization chamber, achieving self-sufficiency in heat energy during the drying stage and further accelerating the drying of residual moisture on the instrument surfaces. Simultaneously, before sterilization begins, the air is rapidly heated in the heating box before being transported to the sterilizer for preheating, increasing the heating rate and avoiding the thermal pollution and energy waste problems of traditional devices. Attached Figure Description

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

[0014] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the internal structure of the sterilization tank of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the heating box of this utility model.

[0017] Legend:

[0018] 1-Cylinder body, 2-Steam pipe, 2011-Steam valve, 3-Heat exchange box, 301-Dustproof and breathable mesh, 302-Steam heat exchange tube, 303-Vent pipe, 4-Inlet pipe, 5-Heating box, 501-Heating wire. 6-Exhaust fan, 7-Outlet pipe, 8-Air pipe, 9-Pressure clamp, 10-Rubber sealing gasket, 11-Pressure relief safety valve, 12-Exhaust pipe, 1201-Exhaust valve, 13-Spiral heating tube, 14-Heating tank, 15-Heating wire, 16-Level gauge, 17-Sealing cover, 18-Rotating handle, 19-Sterilization tank, 12901-Through hole, 20-Water supply pipe, 201-Valve, 202-Check valve. Detailed Implementation

[0019] 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.

[0020] Combined with appendix Figures 1-4 This utility model provides a high-temperature and high-pressure sterilization device for laboratory animal breeding supplies, including a cylinder 1 and a sterilization chamber 19 disposed inside the cylinder 1. The sterilization chamber 19 has a through hole 1901 at its bottom and is used to hold the instruments to be sterilized. A pressure relief safety valve 11 is installed through the side wall of the cylinder 1. During heating, the pressure relief safety valve 11 can release excess high-temperature gas from the cylinder 1, maintaining a safe pressure inside the cylinder 1. A steam pipe 2 is connected to one side of the pressure relief safety valve 11, and the discharged high-temperature steam flows into the steam pipe 2. The end of the steam pipe 2 is connected to... In heat exchange box 3, high-temperature steam exchanges heat with air. An air inlet pipe 4 is installed through the rear side wall of heat exchange box 3. The air that has completed heat exchange enters the air inlet pipe 4. The end of the air inlet pipe 4 is connected to a heating box 5. A heating wire 501 is installed inside the heating box 5. An exhaust fan 6 is connected to the outlet end of the heating box 5. An exhaust pipe 7 is installed at the outlet end of the exhaust fan 6. An air pipe 8 is installed on the exhaust pipe 7. The air pipe 8 passes through the cylinder 1 and is connected to the spiral heating pipe 13 installed between the cylinder 1 and the sterilization tank 19. The exhaust fan 6 continuously delivers hot air into the spiral heating pipe 13.

[0021] In this embodiment, preferably, the cylinder 1 is provided with a heating tank 14, and an electric heating wire 15 is fixedly installed on the bottom wall of the heating tank 14. After the electric heating wire 15 heats and vaporizes the water, it generates steam for sterilization. A liquid level gauge 16 is fixedly installed on the side wall of the heating tank 14, and the liquid level in the heating tank 14 can be observed in real time through the liquid level gauge 16. A water supply pipe 20 is provided through the side wall of the heating tank 14, and a valve 201 is provided on the water supply pipe 20. Opening the valve 201 can replenish water into the heating tank 14. A one-way valve 202 is also provided on the water supply pipe 20, and the one-way valve 202 can prevent steam in the heating tank 14 from overflowing through the water supply pipe 2.

[0022] In this embodiment, preferably, a sealing cover 17 is provided at the top of the cylinder 1, and a rubber sealing gasket 10 is provided at the connection between the sealing cover 17 and the cylinder 1. The sealing cover 17 is pressed or opened by a clamping buckle 9 provided on the side wall of the cylinder 1. The clamping buckle 10 is provided with a rotating handle 18, and the clamping buckle 10 is pressed by rotating the rotating handle 18.

[0023] In this embodiment, preferably, a dustproof and breathable mesh 301 is provided through the lower end of the front wall of the heat exchange box 3, a steam heat exchange pipe 302 connected to the steam pipe 2 is provided inside the heat exchange box 3, and a vent pipe 303 is provided at the end of the steam heat exchange pipe 302 that penetrates the right side wall of the heat exchange box 3.

[0024] In this embodiment, preferably, an exhaust pipe 12 is provided at the end of the spiral heating tube 13, an exhaust valve 1201 is provided on the exhaust pipe 12, and a steam valve 2011 is provided on the steam pipe 2.

[0025] In use: First, close the steam valve 2011, open the exhaust valve 1201, loosen the clamping buckle 10, place the instruments to be sterilized into the sterilization chamber 19, close the sealing cover 17 and tighten the clamping buckle 10, open the valve 201 to add water to the heating chamber 14 through the water supply pipe 20, close the valve 201 after adding water, then turn on the heating wire 501 in the heating box 5, turn on the exhaust fan 6 to preheat the sterilization chamber 19, after preheating for a period of time, turn off the heating wire 501, then turn on the electric heating wire 15, and steam sterilization will begin in the heating chamber 14. After sterilization, open the steam valve 2011, and the exhaust heat energy is recovered by the gas-to-gas heat exchanger in the heat exchange box 3. The heat exchanged hot air enters the spiral heating tube 13 through the exhaust fan 6. After sterilization, the preheated air is heated and then returned to the sterilization chamber 19, realizing the self-supply of heat energy in the drying stage, and further accelerating the drying of residual moisture on the surface of the instruments.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-temperature, high-pressure sterilization device for laboratory animal breeding supplies, characterized in that: The device includes a cylindrical body (1) and a sterilization chamber (19) located inside the cylindrical body (1). A pressure relief safety valve (11) is installed through the side wall of the cylindrical body (1). A steam pipe (2) is connected to one side of the pressure relief safety valve (11). A heat exchange box (3) is connected to the end of the steam pipe (2). An air inlet pipe (4) is installed through the rear side wall of the heat exchange box (3). A heating box (5) is connected to the end of the air inlet pipe (4). An induced draft fan (6) is connected to the outlet end of the heating box (5). An air outlet pipe (7) is installed at the outlet end of the induced draft fan (6). An air pipe (8) is installed on the air outlet pipe (7). The air pipe (8) passes through the cylindrical body (1) and is connected to a spiral heating pipe (13) located between the cylindrical body (1) and the sterilization chamber (19).

2. The high-temperature and high-pressure sterilization device for laboratory animal breeding supplies according to claim 1, characterized in that: The cylinder (1) is provided with a heating tank (14), an electric heating wire (15) is fixedly installed on the bottom wall of the heating tank (14), a liquid level gauge (16) is fixedly installed on the side wall of the heating tank (14), a water supply pipe (20) is provided through the side wall of the heating tank (14), a valve (201) is provided on the water supply pipe (20), and a one-way valve (202) is also provided on the water supply pipe (20).

3. The high-temperature and high-pressure sterilization device for laboratory animal breeding supplies according to claim 1, characterized in that: The top of the cylinder (1) is provided with a sealing cover (17), and a rubber sealing gasket (10) is provided at the connection between the sealing cover (17) and the cylinder (1). The sealing cover (17) is pressed or opened by a clamping buckle (9) provided on the side wall of the cylinder (1). The clamping buckle (9) is provided with a rotating handle (18).

4. The high-temperature and high-pressure sterilization device for laboratory animal breeding supplies according to claim 1, characterized in that: A dustproof and breathable mesh (301) is provided through the lower end of the front wall of the heat exchange box (3). A steam heat exchange pipe (302) connected to the steam pipe (2) is provided inside the heat exchange box (3). A vent pipe (303) that penetrates the right side wall of the heat exchange box (3) is provided at the end of the steam heat exchange pipe (302).

5. The high-temperature and high-pressure sterilization device for laboratory animal breeding supplies according to claim 1, characterized in that: The sterilization tank (19) has a through hole (1901) at the bottom.

6. The high-temperature and high-pressure sterilization device for laboratory animal breeding supplies according to claim 1, characterized in that: The spiral heating tube (13) is provided with an exhaust pipe (12) at its end, and an exhaust valve (1201) is provided on the exhaust pipe (12). A steam valve (2011) is provided on the steam pipe (2).

7. The high-temperature and high-pressure sterilization device for laboratory animal breeding supplies according to claim 1, characterized in that: A heating wire (501) is provided inside the heating box (5).

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