Water-saving vacuumizing device

Abstract

The utility model belongs to the technical field of vacuumizing equipment, and particularly relates to a water-saving vacuumizing device which comprises a cabin body, a vacuum pump and a water tank, the cabin body is connected with an air inlet of the vacuum pump, the upper portion of the water tank is connected with an air outlet of the vacuum pump, and a first heat exchanger is arranged between the vacuum pump and the cabin body. The water tank is connected with the first heat exchanger through a cooling pipeline, the end, away from the water tank, of the cooling pipeline is connected to the vacuum pump, a second heat exchanger is arranged at the end, close to the vacuum pump, of the cooling pipeline, and the water tank is further connected with a water inlet pipe and a water drainage pipe. The water tank is connected with the first heat exchanger to provide cooling water for the first heat exchanger for cooling, water after heat exchange enters the vacuum pump through the pipeline to serve as working liquid, the cooled water for the first heat exchanger serves as the working liquid of the vacuum pump, water consumption is reduced, the size of the water tank can be reduced, and the service life of the vacuum pump is prolonged. The pulse vacuum cleaning sterilizer is suitable for small-size pulse vacuum cleaning sterilizers.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum pumping equipment, and in particular relates to a water-saving vacuum pumping device. Background Art

[0002] With the continuous development of medical technology, more and more complex specialized instruments and precision instruments need to be cleaned. It is particularly important to use appropriate methods to ensure the cleaning quality of medical instruments. Pulsating vacuum cleaning and disinfection equipment is a device that can be used for cleaning, disinfection, and drying of laparoscopic instruments, luminal instruments, basic surgical instruments, orthopedic instruments, anesthesia instruments, dental handpieces, ophthalmic instruments, and foreign instruments.

[0003] The pulsating vacuum cleaning and disinfecting device uses a water ring vacuum pump for vacuuming operation. During the vacuuming process, the water ring vacuum pump requires water as the working medium. Currently, the water discharged by the vacuum pump is not recycled, resulting in huge water consumption. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a water-saving vacuum pumping device, which uses water cooled by heat exchange as the working fluid of the vacuum pump, thereby helping to reduce the volume of the water tank and the water consumption.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a water-saving vacuum device, including a cabin, a vacuum pump and a water tank, the cabin is connected to the air inlet of the vacuum pump, the upper part of the water tank is connected to the air outlet of the vacuum pump, a first heat exchanger is arranged between the vacuum pump and the cabin, the water tank is connected to the first heat exchanger through a cooling pipeline, the end of the cooling pipeline away from the water tank is connected to the vacuum pump, a second heat exchanger is arranged at the end of the cooling pipeline close to the vacuum pump, and the water tank is also connected to a water inlet pipe and a drain pipe.

[0006] Preferably, a filter element is provided between the cabin and the vacuum pump.

[0007] Preferably, the first heat exchanger is a plate heat exchanger.

[0008] Preferably, the second heat exchanger is a fin-tube heat exchanger, and the fin-tube heat exchanger is also provided with a heat dissipation fan.

[0009] Preferably, an exhaust one-way valve is provided between the vacuum pump and the water tank.

[0010] Preferably, an air baffle is provided in the water tank, and the air baffle is arranged above the interface connecting the water tank and the vacuum pump.

[0011] Preferably, a water temperature detection device is also provided in the water tank.

[0012] Preferably, a float valve and a water inlet valve are arranged in parallel on the water inlet pipe of the water tank, and the water inlet valve is connected to the water temperature detection device through an electrical signal.

[0013] Preferably, a manual drain valve is provided on the drain pipe of the water tank.

[0014] Preferably, a drainage one-way valve is also provided on a side of the manual drain valve away from the water tank.

[0015] Compared with the prior art, the above technical solution has the following beneficial effects:

[0016] 1. The utility model provides a first heat exchanger between the vacuum pump and the cabin, and a water tank is connected to the first heat exchanger to provide cooling water for cooling. The water after heat exchange enters the vacuum pump through a pipeline as a working fluid. In order to maintain the working condition of the vacuum pump at a suitable level, a second heat exchanger is arranged on the side of the first heat exchanger close to the vacuum pump. The second heat exchanger first cools down the high-temperature water after heat exchange, and then enters the vacuum pump to act as a working fluid. The cooled water of the first heat exchanger is used as the working fluid of the vacuum pump, which reduces water consumption and helps to reduce the volume of the water tank. The utility model is suitable for small-volume pulsating vacuum cleaning and disinfecting devices.

[0017] 2. The second heat exchanger is a fin-tube heat exchanger, which uses air cooling for cooling and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Among them: 1. Cabin 2, filter 3, plate heat exchanger 4, evacuation valve 5, fin tube heat exchanger 6, cooling fan 7, float valve 8, water tank 9, air baffle 10, platinum thermal resistor 11, manual drain valve 12, exhaust check valve 13, vacuum pump 14, overflow pipe 15, drain check valve 16, water inlet valve. DETAILED DESCRIPTION

[0020] Figure 1 It is the best embodiment of the utility model, and the following Figure 1 The utility model is further described.

[0021] like Figure 1As shown, a water-saving vacuum pumping device of the utility model comprises a cabin 1, a vacuum pump 13 and a water tank 8. The cabin 1 is connected to the air inlet of the vacuum pump 13. The vacuum pump 13 extracts the steam-water mixture in the cabin 1. A first heat exchanger is arranged between the vacuum pump 13 and the cabin 1. The steam-water mixture extracted from the cabin 1 is cooled by heat exchange through the first heat exchanger. The upper part of the water tank 8 is connected to the air outlet of the vacuum pump 13. The water tank 8 is connected to the first heat exchanger through a cooling pipeline. The cooling pipeline is remote. One end away from the water tank 8 is connected to the vacuum pump 13. The water in the water tank 8 passes through the first heat exchanger and exchanges heat with the steam-water mixture passing through the first heat exchanger. The water temperature increases after the heat exchange. A second heat exchanger is arranged at one end of the cooling pipeline close to the vacuum pump 13. The high-temperature water after heat exchange in the second heat exchanger is cooled down and then enters the vacuum pump to act as the working fluid. The cooled water of the first heat exchanger is used as the working fluid of the vacuum pump to reduce water consumption. The water tank 8 is also connected to a water inlet pipe and a drain pipe.

[0022] A filter element is provided between the cabin 1 and the vacuum pump 13. In the present embodiment, the filter element is a filter screen 2. The water vapor mixture drawn out from the cabin 1 is first filtered through the filter screen 2 and then enters the first heat exchanger for heat exchange. In the present embodiment, the first heat exchanger is a plate heat exchanger 3. The plate heat exchanger 3 is a high-efficiency heat exchanger formed by stacking a series of metal sheets with a certain corrugated shape. The plate heat exchanger 3 is connected to the water tank 8. The water in the water tank 8 enters the plate heat exchanger 3 for heat exchange. The water vapor mixture drawn out by the vacuum pump 13 is cooled and then enters the water tank 8.

[0023] An exhaust check valve 12 is provided between the vacuum pump 13 and the water tank 8 to prevent gas from flowing back, so that the gas from the vacuum pump 13 can only flow to the water tank 8. An air baffle 9 is also provided in the water tank 8. The air baffle 9 is provided above the interface where the water tank 8 and the vacuum pump 13 are connected. One end of the air baffle 9 is fixedly connected to the inner wall of the water tank 8, and the other end is tilted downward. The air baffle 9 blocks the interface where the water tank 8 and the vacuum pump 13 are connected, so as to prevent the gas discharged from the vacuum pump 13 from splashing out from the top of the water tank 8. A water temperature detection device is also provided in the water tank 8. In this embodiment, the water temperature detection device is a platinum thermal resistor 10. The platinum thermal resistor 10 is a primary element that converts temperature changes into resistance value changes, and is used to detect the water temperature in the water tank 8 in real time.

[0024] A float valve 7 and a water inlet valve 16 are arranged in parallel on the water inlet pipe of the water tank 8. The float valve 7 stops water inlet when the water level of the water tank 8 reaches a preset value, and allows water in when the water level is lower than the preset value. The water inlet valve 16 is connected to the platinum thermal resistor 10 through an electrical signal. The water inlet valve 16 allows water in when the water tank temperature is higher than a preset value. The priority of the water inlet valve 16 is higher than the float valve 7. Even if the water level of the water tank 8 is at the preset value, water is still allowed in when the temperature of the water tank 8 is higher than the preset value to reduce the overall temperature of the water in the water tank 8.

[0025] A manual drain valve 11 is provided on the drain pipe of the water tank 8. When the manual drain valve 11 is opened, the water in the water tank 8 is drained. A drain check valve 15 is also provided on the side of the manual drain valve 11 away from the water tank 8. The water in the water tank 8 is drained through the drain check valve 15. The drain check valve 15 prevents external water from flowing back into the vacuum system. An overflow pipe 14 is also provided between the water tank 8 and the drain pipe. The overflow pipe 14 is connected between the manual drain valve 11 and the drain check valve 15. The overflow pipe 14 is used to prevent water from overflowing the water tank 8 when the equipment liquid level detection fails.

[0026] In this embodiment, the second heat exchanger is a finned tube heat exchanger 5. The finned tube heat exchanger 5 is a highly efficient heat exchange device. Its principle is to increase the surface area of ​​the tube by adding some fins on the outer surface of the tube, thereby accelerating the heat transfer speed and improving the heat exchange efficiency. The finned tube heat exchanger 5 is also provided with a heat dissipation fan 6, which uses air cooling for cooling, and has low cost. During the operation of the vacuum pump 13, the water in the water tank 8 passes through the plate heat exchanger 3 and the finned tube heat exchanger 5 in turn and is then drawn into the vacuum pump 13. The finned tube heat exchanger 5 is equipped with a heat dissipation fan 6. The two quickly cool the water flowing through and then flow into the vacuum pump 13 to serve as the working fluid of the vacuum pump 13, so that the working condition of the vacuum pump 13 is maintained at a suitable level.

[0027] When the utility model is working in vacuum pumping, the temperature of the steam-water mixture extracted from the cabin 1 reaches above 93 degrees, and the gas first passes through the plate heat exchanger 3 to exchange heat with the water extracted from the water tank 8. At this time, the temperature of the steam-water mixture decreases, and the temperature of the water extracted from the water tank 8 increases. The steam-water mixture after cooling enters the water tank 8, and the water extracted from the water tank 8 then passes through the fin tube heat exchanger 5 and the cooling fan 6 to quickly reduce the temperature of the water extracted from the water tank 8. At this time, the working fluid (water extracted from the water tank) and the steam-water mixture entering the vacuum pump 13 are both cooled, ensuring that the working condition of the vacuum pump 13 is maintained at a suitable level.

[0028] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A water-saving vacuum device, Features: The invention comprises a cabin (1), a vacuum pump (13) and a water tank (8), wherein the cabin (1) is connected to an air inlet of the vacuum pump (13), the upper part of the water tank (8) is connected to an air outlet of the vacuum pump (13), a first heat exchanger is arranged between the vacuum pump (13) and the cabin (1), the water tank (8) is connected to the first heat exchanger via a cooling pipeline, the end of the cooling pipeline away from the water tank (8) is connected to the vacuum pump (13), a second heat exchanger is arranged at the end of the cooling pipeline close to the vacuum pump (13), and the water tank (8) is also connected to a water inlet pipe and a drain pipe.

2. A water-saving vacuum device according to claim 1, Features: A filter element is provided between the cabin (1) and the vacuum pump (13).

3. A water-saving vacuum device according to claim 1, Features: The first heat exchanger is a plate heat exchanger (3).

4. A water-saving vacuum device according to claim 1, Features: The second heat exchanger is a fin-tube heat exchanger (5), and the fin-tube heat exchanger (5) is also provided with a heat dissipation fan (6).

5. A water-saving vacuum device according to claim 1, Features: An exhaust check valve (12) is provided between the vacuum pump (13) and the water tank (8).

6. A water-saving vacuum device according to claim 1, Features: An air baffle (9) is arranged in the water tank (8), and the air baffle (9) is arranged above the interface connecting the water tank (8) and the vacuum pump (13).

7. A water-saving vacuum device according to claim 1, Features: A water temperature detection device is also provided in the water tank (8).

8. A water-saving vacuum device according to claim 7, Features: A float valve (7) and a water inlet valve (16) are arranged in parallel on the water inlet pipe of the water tank (8), and the water inlet valve (16) is connected to the water temperature detection device via an electrical signal.

9. A water-saving vacuum device according to claim 1, Features: A manual drain valve (11) is provided on the drain pipe of the water tank (8).

10. A water-saving vacuum device according to claim 9, Features: A drainage check valve (15) is also provided on the side of the manual drainage valve (11) away from the water tank (8).

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