Gas-liquid recovery system for cleaning sterilizer

Abstract

The utility model discloses a gas-liquid recovery system of a cleaning sterilizer, and belongs to the technical field of cleaning sterilizers. Which comprises a disinfection cabin (7) and a recycling water tank (21) which are connected through a recycling pipeline and a backflow pipeline, and is characterized in that a hot air recycling pipeline is further arranged and connected with the recycling water tank (21) and the disinfection cabin (7), a coil pipe (23) used for heating water in the recycling water tank (21) is arranged in the recycling water tank (21), and the coil pipe (23) is connected with the recycling water tank (21). And an outlet of the hot air recovery pipeline is connected with a coil pipe (23). According to the gas-liquid recovery system of the cleaning sterilizer, recovery of waste water and high-temperature hot air in the sterilization cabin is achieved at the same time, the high-temperature hot air is used for preheating a water source in the recovery water tank, the heating time of a heater is shortened, and the energy consumption of the heater is reduced. The top of the recycling water tank is provided with the breather pipe, so that damage caused by pressure generated in the recycling water tank is avoided.

Description

Technical Field

[0001] A gas-liquid recovery system for a cleaning and disinfection device belongs to the field of cleaning and disinfection device technology. Background Technology

[0002] With the continuous development of medical technology, the cleaning of various complex and precision medical instruments is becoming increasingly common. Therefore, employing appropriate methods to ensure the quality of medical instrument cleaning is crucial. To improve cleaning and disinfection efficiency, cleaning and disinfection equipment is typically used in hospital sterilization supply centers and operating rooms to clean and disinfect various medical instruments. In existing technologies, most cleaning and disinfection equipment directly discharges the rinsing and disinfection water into drainage pipes. This is especially problematic given the high purity of the disinfected water, leading to a waste of water resources. Furthermore, during the drying stage after cleaning, hot air is commonly heated by blowing hot air into the chamber using fans. The hot air temperature can reach over 100℃. After circulating within the chamber, the hot air is discharged through exhaust vents. Currently, the discharged hot air is often directly discharged into the hospital's exhaust ducts. This high temperature accelerates the aging of the exhaust ducts, and the heat energy of the discharged hot air is wasted.

[0003] The applicant of this application filed a Chinese utility model patent (application number 201420073574.7) on February 20, 2014, entitled "Rapid Ultrasonic Spray Cleaning and Disinfection Device," which describes a scheme for recycling cleaning water. However, this scheme still requires the normal operation of the spray mode during cleaning water recycling, and the sprayers in the cabin spray again, at which time some water flows back into the corresponding water tank. The effect of this recycling method is poor, and the recycled water is mainly used in the next ultrasonic cleaning. Actual implementation has shown that its economic benefits are far from expected.

[0004] Chinese invention patent application number 202411898875.8, filed on December 23, 2024, entitled "A Sterilizer and Pipeline Control System for Recovering Heat Energy and Draining Water at Low Temperatures," describes a technical solution in which wastewater is recovered and its heat is used to heat pure water. Chinese patent application number 202123206769.3, filed on December 20, 2021, entitled "A Comprehensive Utilization System for Disinfection Water," also describes a technical solution in which water from a sterilization operation water storage tank is recovered, and its heat is used to heat pure water. The heat-exchanged water is then sent to the sterilizer for reuse. The drawback of these two technical solutions is that they only achieve the reuse of the water source and do not achieve the reuse of the steam. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a gas-liquid recovery system for a cleaning and disinfection device that simultaneously realizes the recovery of wastewater and high-temperature hot air in the disinfection chamber, uses high-temperature hot air to preheat the water source in the recovery water tank, reduces the heating time through the heater, and reduces the energy consumption of the heater.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: the gas-liquid recovery system of the cleaning and disinfection device includes a disinfection chamber and a recovery water tank, which are connected by a recovery pipeline and a return pipeline. The feature is that a hot air recovery pipeline is also provided, which connects the recovery water tank and the disinfection chamber. A coil for heating the water in the recovery water tank is provided in the recovery water tank, and the outlet of the hot air recovery pipeline is connected to the coil.

[0007] Preferably, the hot air recovery pipeline includes a hot air recovery pipe connecting the disinfection chamber and the recovery water tank, a hot air recovery valve is installed on the hot air recovery pipe, and the controller is connected to the control terminal of the hot air recovery valve.

[0008] Preferably, the recycling pipeline includes a recycling pipe, one end of which is connected to a recycling water tank. A drain pump is installed at the bottom of the disinfection chamber, which is connected to a drain pipe at the bottom of the disinfection chamber. The outlet of the drain pump is connected to the recycling pipe.

[0009] Preferably, a recovery valve is installed on the connection line between the recovery pipe and the drainage pump, and the controller is connected to the recovery valve.

[0010] Preferably, a circulation pump is also connected to the outlet of the drain pipe, and the outlet of the circulation pump returns to the disinfection chamber through a pipeline. The controller is connected to the circulation pump.

[0011] Preferably, the return pipeline includes a water supply pipe, one end of which is connected to the disinfection chamber, the other end of which is connected to the outlet of the return pump, the inlet of which is connected to the recovery water tank, and the controller is connected to the return pump.

[0012] Preferably, a water recovery valve is installed in the connecting pipe between the water supply pipe and the disinfection chamber, and the controller is connected to the water recovery valve.

[0013] Preferably, a condensate collection box is installed at the bottom of the recycling water tank, and the outlet of the coil is connected to the condensate collection box.

[0014] Preferably, an overflow pipe is installed on the top of the recycling tank, an overflow check valve is installed in the overflow pipe, and a vent pipe is also installed on the top of the recycling tank.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The gas-liquid recovery system of this cleaning and disinfection device simultaneously recovers wastewater and high-temperature hot air from the disinfection chamber. The high-temperature hot air is used to preheat the water source in the recovery tank, reducing the heating time through the heater and lowering the energy consumption of the heater.

[0017] A vent pipe is installed at the top of the recycling tank to prevent pressure buildup inside the tank and potential damage. An overflow pipe with an overflow check valve is also installed at the top of the recycling tank to prevent excessive water levels in the tank due to a malfunctioning level switch. Attached Figure Description

[0018] Figure 1 This is a front view of the gas-liquid recovery system of the cleaning and disinfection unit.

[0019] Figure 2 This is a schematic diagram of the internal structure of the water recycling tank.

[0020] The components include: 1. Overflow check valve; 2. Vent pipe; 3. Liquid level switch; 4. Water inlet valve; 5. Hot air recovery pipe; 6. Hot air recovery valve; 7. Disinfection chamber; 8. Drain pipe; 9. Return water pipe; 10. Recovery inlet valve; 11. Circulation pump; 12. Drain pump; 13. Drain valve; 14. Recovery valve; 15. Water supply pipe; 16. Recovery pipe; 17. Condensate collection box; 18. Temperature sensor; 19. Return pump; 20. Return water tank outlet; 21. Recovery water tank; 22. Controller; 23. Coil. Detailed Implementation

[0021] Figures 1-2 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-2 The present invention will be further described below.

[0022] like Figure 1 As shown, a gas-liquid recovery system for a cleaning and disinfection device includes a recovery water tank 21. The recovery water tank 21 is connected to the disinfection chamber 7 in the cleaning and disinfection device through a recovery pipe 16 and a water supply pipe 15, so as to realize the recovery of water in the disinfection chamber 7 and the return of water, thus completing the secondary utilization of water.

[0023] In this gas-liquid recovery system, a drain pipe 8 is installed at the drain outlet at the bottom of the disinfection chamber 7. The other end of the drain pipe 8 is divided into two paths: one path is connected to the inlet of the circulation pump 11, and the other path is connected to the inlet of the drain pump 12. The controller 22 of the cleaning and disinfection device is connected to the circulation pump 11 and the drain pump 12 respectively.

[0024] The water returns to the disinfection chamber 7 through a pipeline at the outlet of the circulating pump 11. At the outlet of the drain pump 12, the water splits into two paths: one connects to one end of the drain valve 13, and the other connects to one end of the recovery valve 14. The other end of the drain valve 13 is a free end, used to drain water from the disinfection chamber 7. The other end of the recovery valve 14 connects to one end of the recovery pipe 16, and the outlet of the recovery pipe 16 extends to the upper part of the recovery water tank 21. The controller 22 is connected to the control terminals of both the drain valve 13 and the recovery valve 14.

[0025] A return water tank outlet 20 is provided at the bottom of the return water tank 21. The return water tank outlet 20 is connected to the inlet of the return pump 19 through a pipeline. One end of the aforementioned water supply pipe 15 is connected to the outlet of the return pump 19, and the other end extends to the disinfection chamber 7 and is connected to one end of the return water inlet valve 10. The other end of the return water inlet valve 10 returns to the disinfection chamber 7 through the return water pipe 9. The controller 22 is connected to the control terminal of the return water inlet valve 10, and the controller 22 is also connected to the return pump 19.

[0026] Combination Figure 2 A coil 23 is installed inside the recovery water tank 21. A hot air recovery pipe 5 is installed above the connection between the recovery pipe 16 and the recovery water tank 21. One end of the hot air recovery pipe 5 passes through the wall of the recovery water tank 21 and enters the recovery water tank 21, connecting to the inlet of the coil 23. The bottom of the coil 23 extends to the bottom of the recovery water tank 21. A condensate collection box 17 is installed at the bottom of the recovery water tank 21. The outlet of the coil 23 passes through the wall of the recovery water tank 21 and connects to the condensate collection box 17. The other end of the hot air recovery pipe 5 extends to the disinfection chamber 7 and communicates with the inner cavity of the disinfection chamber 7. A hot air recovery valve 6 is also installed on the connecting pipe between the hot air recovery pipe 5 and the disinfection chamber 7. The controller 22 is connected to the control terminal of the hot air recovery valve 6.

[0027] A level switch 3 is installed at the top of the recycling water tank 21, and a temperature sensor 18 is installed at the bottom of the recycling water tank 21. The level switch 3 and the temperature sensor 18 are used to detect the temperature and level of the water entering the recycling water tank 21, respectively. The level switch 3 corresponds to the upper limit of the water level in the recycling water tank 21. The output terminals of the level switch 3 and the temperature sensor 18 are connected to the controller 22. The controller 22 controls the recycling valve 14 to close, stopping the recycling of water.

[0028] A vent pipe 2 is installed on the top of the recovery water tank 21 to prevent pressure buildup inside the tank and potential damage. An overflow pipe with a one-way overflow valve 1 is also installed on the top of the recovery water tank 21 to prevent excessive water levels in the tank due to a malfunction of the level switch 3. A water inlet pipe is also installed on the top of the recovery water tank 21, with a water inlet valve 4 installed at its port. The controller 22 is connected to the control terminal of the water inlet valve 4.

[0029] The specific working process and working principle are as follows:

[0030] After entering the cleaning and disinfection unit, the items undergo washing and disinfection treatment in sequence. During the washing and disinfection process, the controller 22 controls the circulation pump 11 at the bottom of the disinfection chamber 7 to start, so that the water source forms a washing and disinfection cycle within the disinfection chamber 7. After the washing and disinfection is completed, the controller 22 controls the discharge or recycling of the water source.

[0031] If the water source needs to be discharged directly, the drain valve 13 is opened to discharge the water. When the water source is recycled, the controller 22 controls the corresponding drain pump 12 to start and the recycling valve 14 to start. The water source enters the recycling tank 21 through the recycling pipe 16. When the liquid level in the recycling tank 21 reaches the liquid level switch 3, the controller 22 controls the recycling valve 14 and the drain pump 12 to close, stopping the recycling of the water source. If the recycled water source does not reach the liquid level switch 3, the controller 22 controls the water source inlet valve 4 to open, introducing external water source into the recycling tank 21 until the liquid level in the recycling tank 21 reaches the liquid level switch 3.

[0032] After rinsing in the disinfection chamber 7, the water is dried. Once drying is complete, the controller 22 opens the hot air recovery valve 6, introducing hot air from the disinfection chamber 7 into the recovery water tank 21 via the hot air recovery pipe 5. The water in the recovery water tank 21 is then preheated via the coil 23. A heater is also installed in the recovery water tank 21. Preheating the water in the recovery water tank 21 via the coil 23 reduces the heating time and lowers the heater's energy consumption, until the temperature sensor 18 detects that the water temperature in the recovery water tank 21 has reached the preset temperature.

[0033] During the next cleaning cycle, the controller 22 controls the return pump 19 to operate, draining the water in the recovery tank 21 for cleaning and disinfection. At the same time, the controller 22 controls the recovery water inlet valve 10 on the side of the corresponding disinfection chamber 7 to open, thereby cleaning the disinfection chamber 7.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A gas-liquid recovery system of a washer-disinfector, comprising a disinfection chamber (7) and a recovery water tank (21), the disinfection chamber (7) and the recovery water tank (21) being connected by a recovery line and a return line, characterized in that: The hot air recycling pipeline is connected with the recycling water tank (21) and the sterilization cabin (7), and a coil pipe (23) for heating water in the recycling water tank (21) is arranged in the recycling water tank (21), and the outlet of the hot air recycling pipeline is connected with the coil pipe (23).

2. The gas-liquid recovery system for a washer-disinfector according to claim 1, characterized in that: The hot air recycling pipeline comprises a hot air recycling pipe (5) connected with the sterilization cabin (7) and the recycling water tank (21), and a hot air recycling valve (6) is arranged on the hot air recycling pipe (5), and the controller (22) is connected with the control end of the hot air recycling valve (6).

3. The gas and liquid recovery system for a washer-disinfector according to claim 1, characterized in that: The recycling pipeline comprises a recycling pipe (16), one end of the recycling pipe (16) is connected with the recycling water tank (21), a drainage pump (12) is arranged at the bottom of the sterilization cabin (7), the drainage pump (12) is connected with a drainage pipe (8) at the bottom of the sterilization cabin (7), and the outlet of the drainage pump (12) is connected with the recycling pipe (16).

4. The gas and liquid recovery system for a washer-disinfector according to claim 3, characterized in that: A recycling valve (14) is arranged on the connecting pipeline between the recycling pipe (16) and the drainage pump (12), and the controller (22) is connected with the recycling valve (14).

5. The gas and liquid recovery system for a washer-disinfector according to claim 3, wherein: A circulating pump (11) is further connected at the outlet of the drainage pipe (8), the outlet of the circulating pump (11) returns to the sterilization cabin (7) through a pipeline, and the controller (22) is connected with the circulating pump (11).

6. The gas and liquid recovery system for a washer-disinfector of claim 1, wherein: The recycling pipeline comprises a water supply pipe (15), one end of the water supply pipe (15) is connected with the sterilization cabin (7), the other end of the water supply pipe (15) is connected with the outlet of a recycling pump (19), the inlet of the recycling pump (19) is connected with the recycling water tank (21), and the controller (22) is connected with the recycling pump (19).

7. The gas and liquid recovery system for a washer-disinfector according to claim 6, characterized in that: A recycling water inlet valve (10) is arranged in the connecting pipeline between the water supply pipe (15) and the sterilization cabin (7), and the controller (22) is connected with the recycling water inlet valve (10).

8. The gas and liquid recovery system for a washer-disinfector of claim 1, wherein: A condensate water collecting box (17) is arranged at the bottom of the recycling water tank (21), and the outlet of the coil pipe (23) is connected with the condensate water collecting box (17).

9. The gas and liquid recovery system for a washer-disinfector of claim 1, wherein: An overflow pipe is arranged at the top of the recycling water tank (21), an overflow one-way valve (1) is arranged in the overflow pipe, and an air pipe (2) is further arranged at the top of the recycling water tank (21).

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