Control method of sterilization equipment

Abstract

The invention provides a control method of sterilization equipment, and belongs to the technical field of sterilizer operation control. According to the method, heat energy of high-temperature steam discharged after sterilization of the sterilization boiler is replaced back to the second water tank to the maximum extent, the temperature of water in the second water tank rises, and energy needed for steam generation of the steam boiler is reduced; wastewater generated in the working process of the sterilization boiler is fully recycled, the wastewater is not discharged outwards, and an external water source is not needed in the working process. The system is especially suitable for sterilization of medical wastes, and through the steam generator, the sterilization boiler, the microwave generator, the biofilter, the heat exchanger, the water circulation vacuum pump, the first water tank, the second water tank, the water pump, the water filter and the gas-liquid separator, the medical wastes can be sterilized without waste water, and water resources of the system are completely internally circulated; saturated steam is recycled, and residual heat is completely recovered.

Description

Technical Field

[0001] The invention relates to the technical field of sterilizer operation control, and in particular to a control method for sterilization equipment. Background Art

[0002] In the prior art, commonly used non-incineration sterilizers are mainly divided into two types: microwave high-temperature type and high-temperature and high-pressure wet heat type. Among them, the high-temperature and high-pressure sterilizer has become an excellent sterilization technology recognized by the industry for its excellent stability and broad spectrum. However, traditional high-temperature and high-pressure sterilizers not only require an external water source and produce a large amount of wastewater during operation, but also require a high-power steam generator, poor thermal penetration, long sterilization time, and particularly high energy consumption. To address this problem, the use of sterilization equipment that combines wet heat and microwaves is expected to improve the sterilization effect and shorten the sterilization time, but the problem of wastewater discharge and how to further reduce energy consumption are still technical goals that need to be improved. Summary of the invention

[0003] The technical problem to be solved by the present invention is: how to reduce the energy consumption of sterilization equipment and avoid a large amount of wastewater discharge by improving the operation control level.

[0004] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: Control methods for sterilization equipment include: 1) Inject water from the outside into the water softener; 2) The water softened by the water softener enters the second water tank; 3) After the water in the second water tank reaches the upper limit of the liquid level, it flows into the first water tank; 4) The water in the second water tank enters the steam boiler; 5) The water in the first water tank enters the vacuum pump from the water outlet of the first water tank; 6) After the elevator introduces the garbage into the sterilization boiler, the sterilization boiler is opened and closed, and the vacuum pump works to pump the air pressure in the sterilization boiler to minus 50~90Kpa; the air in the sterilization boiler passes through the biological filter to block bacteria and then enters the heat exchanger; 7) The gas after heat energy replacement by the heat exchanger enters the vacuum pump; 8) The gas cooled by the heat exchanger enters the gas-liquid separator for gas-liquid separation; 9) The gas after liquid removal by the gas-liquid separator enters the filter and disinfection box, and is discharged into the gas outlet after passing through the filter and disinfection box; 10) After the air in the sterilization boiler is exhausted and reaches the predetermined pressure, the high-temperature and high-pressure steam in the steam boiler enters the sterilization boiler and the microwave generator is turned on to perform high-temperature microwave combined disinfection; Repeat steps 6) to 10) until the disinfection is completed; 11) After the disinfection work is completed, the condensate is discharged and enters the gas-liquid separator; 12) The wastewater separated by the gas-liquid separator enters the water storage tank; 13) The cooling pump pumps the vacuum pump working waste water in the water storage tank and the water separated by the gas-liquid separator into the water filter; 14) The water filtered by the water filter returns to the first water tank.

[0005] Preferably, in step 3), after the water in the second water tank reaches the upper limit of the liquid level, it flows into the first water tank through the overflow port.

[0006] Preferably, in step 4), the water entering the steam boiler from the second water tank maintains the continuous operation of the steam boiler.

[0007] Preferably, the steam boiler is dual independently heated, and the internal pipelines of its exhaust unit are connected in parallel.

[0008] Preferably, in step 5), the water entering the vacuum pump from the water outlet of the first water tank maintains the operation of the vacuum pump.

[0009] Preferably, in step 6), the opening and closing of the sterilizing boiler is achieved by driving a power element of a hydraulic station.

[0010] Preferably, in step 7), the wastewater generated by maintaining the operation of the vacuum pump is discharged into the gas-liquid separator through a water pipe for gas-liquid separation and then enters the water storage tank 26 .

[0011] Preferably, in step 7), the water in the first water tank enters the heat exchanger through a circulating water pump to participate in heat energy replacement, and enters the second water tank after the replacement is completed.

[0012] Preferably, in the process of repeating steps 6) to 10), the heat energy of the gas extracted in step 7) is replaced to the second water tank for water intake by the steam boiler.

[0013] Preferably, the sterilization equipment is provided with dual vacuum pumps connected by parallel pipes, and dual cooling pumps are provided connected by parallel pipes.

[0014] The present invention provides a control method for sterilization equipment. In this method, the heat energy of the high-temperature steam discharged from the sterilization boiler after sterilization is replaced back to the second water tank to the greatest extent, the water temperature in the second water tank rises, and the energy required for the steam boiler to generate steam is reduced; the waste water generated during the operation of the sterilization boiler is fully recycled and reused, and no waste water is discharged to the outside, and no external water source is required during the operation.

[0015] The present invention is particularly suitable for the sterilization of medical waste. Through a steam generator, a sterilization boiler, a microwave generator, a biological filter, a heat exchanger, a water circulation vacuum pump, a first water tank, a second water tank, a water pump, a water filter, and a gas-liquid separator, the sterilization of medical waste without wastewater can be achieved. The water resources of the system itself are completely internally circulated, the saturated steam is recycled, and the residual heat is completely recovered. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a right side view of the device on which the present invention is based; Figure 2 It is a front view of the device on which the present invention is based; Figure 3 It is a left side view of the device on which the present invention is based; Figure 4 is a first stereogram of the apparatus on which the present invention is based; Figure 5 is a second stereoscopic view of the device on which the present invention is based; Figure 6 is a top view of the device on which the present invention is based; Figure 7 is a flow chart of the present invention; In the figure: 1. Disinfection bin skeleton; 2. Sterilization boiler; 3. Microwave generator; 4. Shredder; 5. Conveyor; 6. Elevator; 7. Wind collecting device; 8. Hydraulic station; 9. Microwave power supply; 10. Operation box; 11. Equipment compartment skeleton; 12. Water softener; 13. First water tank; 14. Second water tank; 15. Steam boiler; 16. Chiller; 17. Heat exchanger; 18. Vacuum pump; 19. Electric control box; 20. Cooling pump; 21. Air outlet; 22. Circulating water pump; 23. Filtration and disinfection box; 24. Biological filter; 25. Water filter; 26. Water storage tank; 27. Gas-liquid separator; 28. Microwave cooling pump. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention will be described in detail below. In order to avoid too much unnecessary details, the well-known structures or functions will not be described in detail in the following examples. The approximate language used in the following examples can be used for quantitative expression, indicating that the quantity can be allowed to have a certain change without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following examples have the same meaning as those generally understood by those skilled in the art to which the present invention belongs.

[0018] Control methods for sterilization equipment, such as Figure 7 As shown, the following steps are included: 1. Inject water from the outside into the water softener 12.

[0019] 2. The water filtered and softened by the water softener 12 enters the second water tank 14.

[0020] 3. After the water in the second water tank 14 reaches the upper limit of the liquid level, it flows into the first water tank 13 through the overflow port.

[0021] 4. The water in the second water tank 14 enters the steam boiler 15 to maintain the continuous operation of the steam boiler 15; the steam boiler 15 is a dual independent heating and exhaust unit with internal pipelines connected in parallel.

[0022] 5. The water in the first water tank 13 enters the vacuum pump 18 from the water outlet of the first water tank 13 to maintain the operation of the vacuum pump 18; the machine is provided with dual vacuum pumps connected by parallel pipes.

[0023] 6. After the elevator 6 introduces garbage into the sterilizing boiler 2, the hydraulic station 8 drives the power element to open and close the sterilizing boiler 2, and the vacuum pump 18 works to pump the air pressure in the sterilizing boiler 2 to minus 50~90KPa, achieving the first vacuum. The air in the sterilizing boiler 2 enters the heat exchanger 17 after the bacteria are blocked by the biological filter 24.

[0024] 7. The gas after heat energy is replaced by the heat exchanger 17 enters the vacuum pump 18.

[0025] 7.1. The wastewater generated by the vacuum pump 18 is discharged into the gas-liquid separator 27 through the corresponding water pipe for gas-liquid separation and then enters the water storage tank 26.

[0026] 7.2 The water in the first water tank 13 enters the heat exchanger 17 through the circulating water pump 22, participates in the heat energy replacement in step 7, and enters the second water tank 14 after the replacement is completed.

[0027] 8. The gas cooled by the heat exchanger 17 enters the gas-liquid separator 27 for gas-liquid separation.

[0028] 9. The gas after liquid removal by the gas-liquid separator 27 enters the filter and disinfection box 23, and is discharged into the gas outlet 21 after passing through the filter and disinfection box.

[0029] 10. After the air in the sterilizing boiler 2 is exhausted and reaches a predetermined pressure, the high-temperature and high-pressure steam in the steam boiler 15 enters the sterilizing boiler 2 and the microwave generator is turned on to perform the first high-temperature microwave combined disinfection.

[0030] Repeat steps 6 to 10 several times until the disinfection work is completed (the gas extracted from step 7 in the subsequent multiple cycles is all high-temperature gas, and its heat energy will be replaced to the second water tank 14 for the steam boiler 15 to draw water).

[0031] 11. After the disinfection work is completed, the condensate is discharged and enters the gas-liquid separator 27.

[0032] 12. The wastewater separated by the gas-liquid separator 27 enters the water storage tank 26.

[0033] 13. The cooling pump 20 pumps the vacuum pump working waste water in the water storage tank 26 and the water separated by the gas-liquid separator 27 into the water filter 25; the machine is equipped with dual cooling pumps connected by parallel pipes.

[0034] 14. The water filtered by the water filter 25 returns to the first water tank 13.

[0035] The heat energy of the high-temperature steam discharged from the sterilization boiler 2 after sterilization is replaced back to the second water tank 14 to the greatest extent. The water temperature in the second water tank 14 rises, reducing the energy required for the steam boiler 15 to generate steam; the waste water generated during the operation of the sterilization boiler 2 is fully recycled and utilized, and no waste water is discharged to the outside, and there is no need to connect an external water source during the operation.

[0036] The sterilization equipment according to the present invention is structured as follows: Figure 1 to Figure 6 shown.

[0037] The equipment includes a sterilization bin and an equipment cabin, the sterilization bin includes a sterilization bin frame 1 and an insulation board located outside the sterilization bin frame 1, the equipment cabin includes an equipment cabin frame 11 and an insulation board located outside the equipment cabin frame 11; the bottom of the sterilization bin frame 1 is a bottom bracket, a sterilization boiler 2 is arranged on the bottom bracket, a microwave generator 3 is installed on the sterilization boiler 2, a shredder 4 is installed at the bottom of the sterilization boiler 2, a conveyor 5 is installed at the bottom of the shredder 4, a hoist 6 is arranged at the front end of the sterilization bin frame 1, an air collecting device 7 is arranged on the inner side of the top of the sterilization bin frame 1, a hydraulic station 8 and a microwave power supply 9 are arranged on the rear side of the sterilization bin, and an operation box 10 is arranged on the right side of the front end of the sterilization bin frame 1; the bottom of the equipment cabin frame 11 is a bottom frame, a soft A water softener 12 is provided on the base frame near the water softener 12, a first water tank 13 is installed in the first water tank 13, a second water tank 14 is provided above the first water tank, a liquid level sensor and a temperature sensor are installed on the second water tank 14, a steam boiler 15 is provided on the base frame, a chiller 16 is provided on one side of the steam boiler 15, a heat exchanger 17 is provided on one side of the steam boiler 15, a vacuum pump 18 is provided on the base frame, a biofilter 24 is provided on the base frame near the heat exchanger 17, a pressure sensor is installed on the top of the biofilter 24, a circulating water pump 22 is provided on the base frame near the vacuum pump 18, a gas-liquid separator 27 is provided on the base frame, and a filter and disinfection box 23 is installed on the upper side of the steam boiler 15.

[0038] Among them, the disinfection bin frame 1 is connected to the equipment compartment frame 11, and the sterilizing boiler 2 is fixedly installed on the disinfection bin frame 1. The water softener 12 is connected to the second water tank 14 through a pipeline, and the second water tank 14 is connected to the first water tank 13. The water inlet of the steam boiler 15 is connected to the second water tank 14 through a pipeline, the air outlet of the steam boiler 15 is connected to the air inlet of the sterilizing boiler 2 through a pipeline, and the water supply port of the vacuum pump 18 is connected to the first water tank 13. One end of the biological filter 24 is connected to the exhaust port of the sterilizing boiler 2 through a pipeline, and the heat exchanger 17 is connected to the biological filter 24. It also includes a cooling pump 20, a water filter 25, and a water reservoir 26, wherein the heat exchanger 17 is connected to the vacuum pump 18 through a pipeline, the gas-liquid separator 27 is connected to the vacuum pump 9 through a pipeline, the discharge end of the gas-liquid separator 27 is connected to the water reservoir 26, the output end of the water filter 25 is connected to the first water tank 13, the input end of the water filter 25 is connected to the output end of the cooling pump 20, and the input end of the cooling pump 20 is connected to the water reservoir 26 through a pipeline. It also includes an air outlet 21, wherein the second input end of the gas-liquid separator 27 is connected to the heat exchanger 17, the output end of the gas-liquid separator 27 is connected to the filter and disinfection box 23, and the outlet end of the filter and disinfection box 23 is connected to the air outlet 21 through a pipeline. The input end of the circulating water pump 22 is connected to the first water tank 13, and the output end of the circulating water pump 22 is connected to the cold water outlet of the heat exchanger 17 through a pipeline; the second water tank 14 is connected to the heat exchanger 17. The water inlet of the chiller 16 is connected to the first water tank 13 through a pipeline, and the water outlet of the chiller 16 is connected to the first water tank 13. The wind collecting device 7 is connected to the disinfection chamber frame 1. In addition, an electric control box 19 and a microwave cooling pump 28 are also provided on the equipment compartment frame 11.

[0039] The embodiments of the present invention are described in detail above, but the contents are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the scope of the present invention shall be included in the protection scope of the present invention.

Claims

1. A control method for a sterilization device, characterized in that: include: 1) Inject water from an external source into the water softener (12); 2) The water filtered and softened by the water softener (12) enters the second water tank (14); 3) After the water in the second water tank (14) reaches the upper limit of the liquid level, it flows into the first water tank (13); 4) The water in the second water tank (14) enters the steam boiler (15); 5) The water in the first water tank (13) enters the vacuum pump (18) from the water outlet of the first water tank (13); 6) After the elevator (6) introduces the garbage into the sterilizing boiler (2), the sterilizing boiler (2) is opened and closed, and the vacuum pump (18) is operated to pump the air pressure in the sterilizing boiler (2) to negative 50~90Kpa; the air in the sterilizing boiler (2) passes through the biological filter (24) to block bacteria and then enters the heat exchanger (17); 7) The gas after heat energy is replaced by the heat exchanger (17) enters the vacuum pump (18); 8) The gas cooled by the heat exchanger (17) enters the gas-liquid separator (27) for gas-liquid separation; 9) The gas after liquid removal by the gas-liquid separator (27) enters the filter and disinfection box (23), and is discharged into the gas outlet (21) after passing through the filter and disinfection box; 10) After the air in the sterilizing boiler (2) is exhausted and reaches a predetermined pressure, the high-temperature and high-pressure steam in the steam boiler (15) enters the sterilizing boiler (2) and the microwave generator is turned on to perform high-temperature microwave combined disinfection; Repeat steps 6) to 10) until the disinfection is completed; 11) After the disinfection work is completed, the condensate is discharged and enters the gas-liquid separator (27); 12) The wastewater separated by the gas-liquid separator (27) enters the water storage tank (26); 13) The cooling pump (20) pumps the vacuum pump working waste water in the water storage tank (26) and the water separated by the gas-liquid separator (27) into the water filter (25); 14) The water filtered by the water filter (25) is returned to the first water tank (13).

2. The control method of the sterilization equipment according to claim 1, characterized in that: In step 3), after the water in the second water tank (14) reaches the upper limit of the liquid level, it flows into the first water tank (13) through the overflow port.

3. The control method of the sterilization equipment according to claim 1, characterized in that: In step 4), the water entering the steam boiler (15) from the second water tank (14) maintains the continuous operation of the steam boiler (15).

4. The control method of the sterilization equipment according to claim 1, characterized in that: The steam boiler (15) is dual independently heated, and the internal pipelines of its exhaust unit are connected in parallel.

5. The control method of the sterilization equipment according to claim 1, characterized in that: In step 5), water from the first water tank (13) entering the vacuum pump (18) from its water outlet maintains the operation of the vacuum pump (18).

6. The control method of the sterilization equipment according to claim 1, characterized in that: In step 6), the opening and closing of the sterilizing boiler (2) is achieved by driving the power element via the hydraulic station (8).

7. The control method of the sterilization equipment according to claim 1, characterized in that: In step 7), the wastewater generated by maintaining the vacuum pump (18) in operation is discharged into the gas-liquid separator (27) through a water pipe for gas-liquid separation and then enters the water storage tank 26.

8. The control method of the sterilization equipment according to claim 6, characterized in that: In step 7), the water in the first water tank (13) enters the heat exchanger (17) through the circulating water pump (22) to participate in heat energy replacement, and enters the second water tank (14) after the replacement is completed.

9. The control method of the sterilization equipment according to claim 1, characterized in that: During the process of repeating steps 6) to 10), the heat energy of the gas extracted in step 7) is replaced by the second water tank (14) to provide water for the steam boiler (15).

10. The control method of the sterilization equipment according to claim 1, characterized in that: The sterilization equipment is provided with dual vacuum pumps connected via parallel pipelines, and dual cooling pumps are provided which are connected via parallel pipelines.

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