Pulsating vacuum sterilizer end-of-line wastewater and exhaust gas treatment device

Abstract

This invention relates to the field of steam sterilizer technology, and provides a wastewater and exhaust gas treatment device for the end of a pulsed vacuum sterilizer. The device includes: a water tank body suitable for containing liquid; the water tank body is connected to a wastewater connection pipe and a main drain pipe; the wastewater connection pipe is suitable for connecting to the drain pipe of an external pulsed vacuum sterilizer; multiple heat-conducting columns disposed inside the water tank body; one end of each heat-conducting column protruding outside the water tank body; multiple heat sinks disposed at the protruding ends of the heat-conducting columns; the heat sinks are spaced apart, thus forming ventilation gaps between them; and a Venturi jet is disposed in the airflow path of the ventilation gaps between the heat sinks. This device overcomes the defect of existing devices that use cooling water tanks for cooling, where the cooling effect deteriorates after continuous operation of the pulsed vacuum sterilizer due to the continuous heat absorption and temperature rise of the cooling water.

Description

Technical Field

[0001] This invention relates to the field of steam sterilizer equipment technology, specifically to a wastewater and waste gas treatment device at the end of a pulsed vacuum sterilizer. Background Technology

[0002] Pulsating vacuum sterilizers are primarily used for high-temperature, high-pressure sterilization of various items such as dressings, surgical instruments, and textiles to ensure laboratory biosafety. Their working principle involves repeatedly and alternately drawing a vacuum in the sterilization chamber and then filling it with steam (achieving a certain vacuum level before filling with saturated steam) to ultimately reach the set pressure and temperature, thus sterilizing heat- and moisture-resistant items. This high-temperature, high-pressure sterilization process ultimately produces high-temperature wastewater and high-pressure exhaust steam. Conventional pulsating vacuum sterilizers can discharge water at temperatures between 60°C and 70°C, but current laboratory drainage pipes are mainly made of PVC. If the discharge temperature at the end of the pulsating vacuum sterilizer is too high during use, continuous drainage can cause the PVC material to soften, leading to leaks in the drainage pipes. Therefore, cooling measures are needed for the drainage from the pulsating vacuum sterilizer. Currently, there are two main cooling methods: one is to connect the equipment to a tap water pipe, releasing a large amount of tap water during drainage to neutralize the water temperature. However, this solution results in significant water waste. Another method is to use a cooling water tank for cooling. The high-temperature wastewater discharged from the pulsed vacuum sterilizer flows through the cooling water tank, achieving cooling through heat exchange. However, because the cooling water cannot be replaced in the short term, if the pulsed vacuum sterilizer operates continuously, its cooling effect will gradually deteriorate as the cooling water continues to absorb heat and rises in temperature. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that when the wastewater and waste gas treatment device at the end of the pulsed vacuum sterilizer uses a cooling water tank for cooling, the cooling effect deteriorates as the cooling water continuously absorbs heat and rises in temperature after the pulsed vacuum sterilizer has been working continuously.

[0004] To address the aforementioned technical problems, this application provides a wastewater and exhaust gas treatment device at the end of a pulsed vacuum sterilizer, comprising:

[0005] The main body of the water tank is suitable for containing liquids; the main body of the water tank is connected to the wastewater connection pipe and the main drain pipe; the wastewater connection pipe is suitable for connecting to the drain pipe of the external pulsed vacuum sterilizer;

[0006] Multiple heat-conducting columns are installed inside the main body of the water tank; one end of each heat-conducting column protrudes outside the main body of the water tank.

[0007] Multiple heat sinks are located at the ends of the heat-conducting pillars that protrude beyond the main body of the water tank; the heat sinks are arranged at intervals to form ventilation gaps between them.

[0008] A Venturi jet is disposed on the airflow path of the ventilation gap of the heat sink;

[0009] The Venturi jet injector includes a nozzle, an intake chamber, and a mixing chamber; the inlet of the nozzle is connected to an exhaust gas connection pipe; the exhaust gas connection pipe is adapted to connect to the exhaust pipe of an external pulsed vacuum sterilizer; the intake chamber is located beside the nozzle outlet; the outlet of the mixing chamber is connected to a main exhaust pipe; the inlet of the mixing chamber is aligned with the nozzle outlet, and a gap is formed between the nozzle and the mixing chamber that communicates with the intake chamber; an intake hole is provided on the intake chamber, and the intake hole faces the ventilation gap of the heat sink.

[0010] Furthermore, a first spiral tube is installed in the inner cavity of the water tank body; the spiral axis of the first spiral tube is vertically oriented; the bottom end of the first spiral tube is connected to the wastewater connection pipe, the top end of the first spiral tube is connected to the inner cavity of the water tank body, and the bottom end of the water tank body is connected to the main drain pipe.

[0011] Furthermore, the cross-section of the water tank body is annular; vertically arranged spiral baffles are provided in the inner cavity of the water tank body; the inner and outer sides of the spiral baffles are connected to the inner and outer side walls of the water tank body, and the spiral baffles divide the inner cavity of the water tank body into spiral cavities; the pitch of the spiral baffles is the same as that of the first spiral tube; the first spiral tube is in contact with the spiral baffles.

[0012] Furthermore, the heat-conducting column is a heat pipe; the heat-conducting column is arranged vertically and is evenly distributed around the axis of the water tank body; the top of the heat-conducting column protrudes from the top of the water tank body and is connected to the heat sink; the part of the heat-conducting column inside the water tank body is connected to the spiral baffle.

[0013] Furthermore, the heat sinks are arranged vertically; the heat sinks are annular; the intake chamber is located in the space formed by the annular holes of each heat sink; the mixing chamber is arranged vertically to the nozzle; the intake chamber surrounds the nozzle; and multiple intake holes are arranged circumferentially around the intake chamber.

[0014] Furthermore, an outer casing is provided on the outside of the main body of the water tank, and the outer casing is in the shape of an inverted barrel; a tank-side ventilation gap is provided between the side wall of the outer casing and the outer wall of the main body of the water tank; the bottom end of the tank-side ventilation gap is an air inlet; heat sinks are provided between the top surface of the main body of the water tank and the top wall of the outer casing; a heat sink periphery ventilation gap is provided between the outer edge of the heat sink and the side wall of the outer casing.

[0015] Furthermore, a water collection trough is provided below the main body of the water tank, and the bottom of the water collection trough is connected to the main drain pipe; a bottom ventilation gap is provided between the top of the water collection trough and the bottom of the main body of the water tank; the bottom ventilation gap is connected to the air inlet; a top ventilation gap is provided between the bottom heat sink and the top surface of the main body of the water tank; the top ventilation gap is connected to the outer ventilation gap of the heat sink; the annular hole of the main body of the water tank is connected between the top ventilation gap and the bottom ventilation gap; a drip device is provided above the annular hole of the main body of the water tank, and the drip device is connected to the bottom of the main body of the water tank through a liquid guide pipe.

[0016] Furthermore, a second spiral tube is vertically arranged below the dripper; one end of the second spiral tube is connected to the wastewater connection pipe, and the other end of the second spiral tube is connected to the bottom port of the first spiral tube.

[0017] Furthermore, the outer diameter of the second helical tube is the same as the pitch.

[0018] Furthermore, a liquid storage pipe is installed at the inlet of the nozzle, and the liquid storage pipe is arranged vertically; the upper part of the liquid storage pipe is connected to the exhaust gas connection pipe; and a float valve is installed at the bottom of the liquid storage pipe.

[0019] By adopting the above technical solution, the present invention has the following technical effects:

[0020] The wastewater and exhaust gas treatment device at the end of a pulsating vacuum sterilizer provided by this invention, by incorporating a Venturi jet injector, can convert the high-pressure exhaust gas continuously generated during the operation of the pulsating vacuum sterilizer into a power source that drives the flow of gas within the laboratory. Thus, even though the pulsating vacuum sterilizer primarily discharges steam, and its exhaust gas is typically high-temperature, it does not prevent it from driving the flow of cooler gas within the laboratory. This cooler airflow then cools the heat sink, and in conjunction with the heat-conducting columns leading to the interior of the water tank, the water inside can be repeatedly cooled. Therefore, regardless of how long the pulsating vacuum sterilizer operates continuously, because each working cycle produces a large amount of high-pressure exhaust gas, which drives the cooler gas within the laboratory to continuously dissipate heat from the water in the tank, this improves the air-cooling capacity compared to existing water tanks and avoids the problem of the cooling effect gradually deteriorating due to the cooling water absorbing heat and rising in temperature. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1This is a schematic perspective view of the structure of an embodiment of the present invention;

[0023] Figure 2 This is a three-dimensional sectional view illustrating the structure of an embodiment of the present invention;

[0024] Figure 3 This is a schematic elevation sectional view of an embodiment of the present invention;

[0025] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0026] Figure 5 This is a schematic three-dimensional sectional view of the cooling water tank according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic cross-sectional view of the Venturi jet injector and liquid storage tube according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1-Main exhaust pipe, 2-Cooling water tank, 3-Air inlet, 4-Water collection tank, 5-Main drain pipe, 6-Wastewater connection pipe, 7-Exhaust gas connection pipe, 8-Heat sink, 9-Intake chamber, 10-Drip device, 11-Heat conduction column, 12-Liquid guide pipe, 13-Second spiral tube, 14-Water manifold, 15-Bottom ventilation gap, 16-Support column, 17-Spiral baffle, 18-First spiral tube, 19-Water tank Main body, 20-outer casing, 21-heat-conducting connecting plate, 22-liquid storage pipe, 23-circular hole ventilation gap, 24-box side ventilation gap, 25-box top ventilation gap, 26-heat sink periphery ventilation gap, 27-air intake hole, 28-drip hole, 29-mixing chamber, 30-nozzle, 31-Venturi jet injector, 32-float ball, 33-pull wire, 34-valve body, 35-float valve, 36-riseer drain hole. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be noted in the description of this invention that the coordinate system used in describing the orientation is determined by the orientation of the corresponding component's main view, and the naming of the observation angle of the corresponding view is also based on this. Therefore, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] This embodiment provides a wastewater and waste gas treatment device at the end of a pulsed vacuum sterilizer.

[0035] In one implementation, such as Figures 1 to 6 As shown, it includes a cooling water tank 2 (specifically, a tank body 19), heat-conducting columns 11, heat sinks 8, and a Venturi jet 31. The tank body 19 is adapted to contain liquid. The tank body 19 is connected to a wastewater connection pipe 6 and a main drain pipe 5. The wastewater connection pipe 6 is adapted to connect to the drain pipe of an external pulsed vacuum sterilizer. Multiple heat-conducting columns 11 are disposed inside the tank body 19. One end of each heat-conducting column 11 protrudes beyond the tank body 19. Multiple heat sinks 8 are disposed at the protruding ends of the heat-conducting columns 11. The heat sinks 8 are spaced apart, thus forming ventilation gaps between them.

[0036] A Venturi jet injector 31 is disposed in the airflow path of the venting gap of the heat sink. The Venturi jet injector 31 is a prior art device that relies on high-speed fluid to generate negative pressure, thereby causing the fluid in the negative pressure zone to flow. In this embodiment, it includes a nozzle 30, an intake chamber 9, and a mixing chamber 29. The inlet of the nozzle 30 is connected to the exhaust gas connection pipe 7. The exhaust gas connection pipe 7 is adapted to connect to the exhaust pipe of an external pulsed vacuum sterilizer. The intake chamber 9 is disposed beside the outlet of the nozzle 30. The outlet of the mixing chamber 29 is connected to the main exhaust pipe 1. The inlet of the mixing chamber 29 is aligned with the outlet of the nozzle 30, and a gap is formed between the nozzle 30 and the mixing chamber 29 that communicates with the intake chamber 9. An intake hole 27 is provided on the intake chamber 9, facing the venting gap of the heat sink.

[0037] When using this device, first connect the wastewater connection pipe 6 and the exhaust gas connection pipe 7 to the pulsed vacuum sterilizer. During the repeated vacuuming process before sterilization and the discharge of high-pressure steam after sterilization, the exhaust gas discharged by the pulsed vacuum sterilizer enters the Venturi jet injector 31. After being accelerated by the nozzle 30, it becomes a high-speed jet. Under the negative pressure generated, the air in the suction chamber 9 enters the mixing chamber 29 and is discharged from the main exhaust pipe 1. As the air in the suction chamber 9 flows, the gas in the ventilation gap of the heat sink fin facing the suction port 27 will continuously flow, thereby promoting the cooling of the heat sink 8. The heat sink 8 forms a thermal conductivity relationship with the cooling water in the water tank body 19 through the heat conduction column 11, thereby continuously cooling the cooling water in the water tank body 19.

[0038] This device, by incorporating a Venturi jet injector 31, converts the high-pressure exhaust gas continuously generated during the operation of the pulsating vacuum sterilizer into a power source driving the airflow within the laboratory. Even though the pulsating vacuum sterilizer primarily discharges steam, and its exhaust gas is typically high-temperature, this does not prevent it from driving the flow of cooler air within the laboratory. This cooler airflow then cools the heat sink 8, and, in conjunction with the heat-conducting column 11 leading to the water tank body 19, repeatedly cools the water within the tank. Thus, regardless of how long the pulsating vacuum sterilizer operates continuously, the large amount of high-pressure exhaust gas produced in each cycle continuously dissipates heat from the cooler air within the laboratory, improving the air-cooling capacity compared to existing water tanks and preventing the cooling effect from gradually deteriorating due to the cooling water absorbing heat and heating up.

[0039] Based on the above embodiments, in a preferred embodiment, such as Figure 2 and 3As shown, a first spiral tube 18 is installed inside the cavity of the water tank body 19. The spiral axis of the first spiral tube 18 is vertically oriented. The bottom end of the first spiral tube 18 is connected to the wastewater connection pipe 6, and the top end of the first spiral tube 18 is connected to the cavity of the water tank body 19. The bottom end of the water tank body 19 is connected to the main drain pipe 5.

[0040] After the first spiral tube 18 is installed, the high-temperature wastewater from the pulsating vacuum sterilizer first enters the water tank body 19 from the bottom port of the first spiral tube 18, and is then cooled by the cooling water inside the tank. Its spiral path ensures more thorough heat exchange. As the wastewater flows, it exits from the top port of the first spiral tube 18 and then enters the water tank body 19. Because of the temperature stratification of fluids, the high-temperature wastewater exiting from the top port of the first spiral tube 18 accumulates in the upper space of the water tank body 19, thus forcing the existing cooler cooling water to be discharged from the bottom of the water tank body 19, until the new wastewater completely replaces the existing cooling water. At the start of the next work cycle, because the pulsating vacuum sterilizer discharges wastewater at the very end of the sterilization process, before this, the pulsating vacuum sterilizer will thoroughly cool the newly replaced wastewater, which still has residual heat, during multiple vacuuming processes. This cools the wastewater to a suitable temperature and then cools the high-temperature wastewater flowing in from the bottom port of the first spiral tube 18 in the second round, thus completing the work cycle handover. Furthermore, multiple first spiral tubes 18 can be concentrically arranged to improve heat exchange capacity. The wastewater connection pipe 6 can be connected to each of the first spiral tubes 18 via the water manifold 14.

[0041] Based on the above embodiments, in a preferred embodiment, such as Figure 2 , 3 As shown in Figure 5, the cross-section of the water tank body 19 is annular. Vertically arranged spiral baffles 17 are provided within the inner cavity of the water tank body 19. The inner and outer sides of the spiral baffles 17 are connected to the inner and outer side walls of the water tank body 19, dividing the inner cavity of the water tank body 19 into spiral cavities. This arrangement reduces the turbulence of the water flow in the water tank body 19, allowing for orderly replacement of hot and cold water within the tank. Because the high-temperature wastewater flowing into the tank is confined to a very small area by the spiral cavities, it only causes localized turbulence. The water within the tank, after being confined by the spiral cavities, also becomes a spiral-shaped body of water overall. This allows the hotter wastewater to continuously push against the existing cooling water along the spiral line, preventing disorderly mixing of hot and cold water and ensuring that the hot water is cooled more thoroughly during this process. Furthermore, the pitch of the spiral baffles 17 in this embodiment is the same as that of the first spiral tube 18. The first spiral tube 18 is in contact with the spiral baffles 17. This allows the spiral baffle 17 to become a heat dissipation plate for the first spiral tube 18, improving heat exchange capacity.

[0042] Based on the above embodiments, in a preferred embodiment, such as Figure 2 , 3 As shown in Figure 5, the heat-conducting column 11 is a heat pipe. A heat pipe is a conventional device, mainly composed of a shell, a wick, and end caps. It is a heat transfer element that relies on the phase change of its internal working liquid to achieve heat transfer. Because heat pipes have the highest thermal conductivity in a vertical orientation, the heat-conducting column 11 in this embodiment is vertically arranged and evenly distributed around the axis of the water tank body 19. The top of the heat-conducting column 11 protrudes from the top of the water tank body 19 and is connected to the heat sink 8. The portion of the heat-conducting column 11 inside the water tank body 19 is connected to the spiral baffle 17. This arrangement not only allows the heat-conducting column 11 to fully utilize its thermal conductivity, improving the air-cooling capacity of the entire device, but also establishes a highly efficient heat conduction path because the heat-conducting column 11 is directly connected to the spiral baffle 17, which serves as the heat sink of the first spiral tube 18. This avoids the decrease in thermal conductivity caused by water conduction in the original scheme, allowing the high-temperature wastewater entering the tank to be quickly cooled by air cooling. The combined effect of air cooling and water cooling achieves a better cooling effect.

[0043] Based on the above embodiments, in a preferred embodiment, such as Figures 2 to 5 As shown, the heat sinks 8 are arranged vertically. The heat sinks 8 are annular, allowing each annular heat sink 8 to cover the top of the water tank body 19, thus forming an effective connection with the various heat-conducting columns 11 around the water tank body 19. The suction chamber 9 is located within the space formed by the annular holes of each heat sink 8. The mixing chamber 29 is arranged vertically to the nozzle 30. The suction chamber 9 surrounds the nozzle 30. Multiple suction holes 27 are arranged around the suction chamber 9. Because the negative pressure of the Venturi jet 31 exists around the nozzle 30, this arrangement not only fully utilizes the negative pressure around the Venturi jet 31, but also, in conjunction with the annular heat sinks 8, allows the cooling airflow to enter the ventilation gaps of the heat sinks 8 from around their periphery, fully utilizing the cooler air around the device, avoiding dependence on a single path, and improving the heat dissipation capacity of each heat sink 8.

[0044] Based on the above embodiments, in a preferred embodiment, such as Figure 2 , 3 As shown in Figure 5, an outer casing 20 is provided on the outside of the water tank body 19. The outer casing 20 is in the shape of an inverted barrel. A tank-side ventilation gap 24 is provided between the side wall of the outer casing 20 and the outer wall of the water tank body 19. The bottom end of the tank-side ventilation gap 24 is the air inlet 3. A heat sink 8 is provided between the top surface of the water tank body 19 and the top wall of the outer casing 20. In order to ensure that the heat sink 8 can draw air from all sides for heat dissipation, a heat sink periphery ventilation gap 26 is provided between the outer edge of the heat sink 8 and the side wall of the outer casing 20.

[0045] The inverted barrel-shaped outer casing 20 can constrain the flow path of the cooling airflow, thereby achieving a more optimized cooling solution. Since air is a fluid exhibiting temperature stratification, cooler air is located relatively lower within the air mass. With the outer casing 20 installed, the air inlet 3 is located at the bottom of the device, allowing it to absorb cooler air from lower positions around the device and preventing the extraction of warmer air from higher positions. Furthermore, after entering the outer casing 20, the cooling air can also cool the outer wall of the water tank body 19 along the side ventilation gap 24, contributing to the cooling of the water inside. Alternatively, a heat-conducting connecting plate 21 can be preferably installed between the outer casing 20 and the outer wall of the water tank body 19, making the outer casing 20 a heat dissipation plate for the water tank body 19, further improving the heat dissipation capacity of the water tank body 19 during this process.

[0046] Based on the above embodiments, in a preferred embodiment, such as Figures 2 to 5 As shown, a water collection trough 4 is provided below the main body 19 of the water tank, and the water collection trough 4 is connected to the main body 19 of the water tank via a support column 16. The bottom of the water collection trough 4 is connected to the main drain pipe 5. A bottom ventilation gap 15 is provided between the top of the water collection trough 4 and the bottom of the main body 19 of the water tank. The bottom ventilation gap 15 is connected to the air inlet 3. A top ventilation gap 25 is provided between the bottom heat sink 8 and the top surface of the main body 19 of the water tank. The top ventilation gap 25 is connected to the outer ventilation gap 26 of the heat sink, forming an annular ventilation gap 23. The annular hole of the main body 19 of the water tank is connected between the top ventilation gap 25 and the bottom ventilation gap 15. This arrangement allows cooling air to flow through the annular hole of the main body 19 of the water tank, thereby cooling the inner wall of the main body 19 of the water tank and improving the cooling effect of the cooling water. To prevent cooling air from flowing directly into the intake chamber 9 from the annular hole near the center of the device, i.e. the water tank body 19, a top ventilation gap 25 is provided between the bottom heat sink 8 and the top surface of the water tank body 19. This allows the cooling air to flow back to the outer ventilation gap 26 of the heat sink, thereby ensuring the heat dissipation effect of the heat sink 8.

[0047] In addition, such as Figures 2 to 4As shown, this embodiment also includes a dripper 10 located above the annular hole of the water tank body 19. The dripper 10 has a drip hole 28 at its bottom for dripping liquid. The dripper 10 is connected to the bottom of the water tank body 19 via a liquid guide pipe 12. The liquid droplets flowing from the dripper 10 fall into the water collection tank 4 and are then discharged from the device. The liquid guide pipe 12 not only serves as a connecting component between the water tank body 19 and the dripper 10, but also, because the dripper 10 is located above the water tank body 19, effectively maintains the liquid level inside the water tank body 19. The dripper 10 allows full utilization of the cooling airflow entering the annular hole of the water tank body 19, providing final cooling for the wastewater about to be discharged from the device. Since this cooling airflow blows upwards, directly opposite to the direction of the droplet movement from the dripper 10, it increases the gas velocity flowing over the droplet surface, thereby enhancing the heat exchange effect.

[0048] Based on the above embodiments, in a preferred embodiment, such as Figures 2 to 4 As shown, a second spiral tube 13 is vertically arranged below the dripper 10. One end of the second spiral tube 13 is connected to the wastewater connection pipe 6, and the other end is connected to the bottom port of the first spiral tube 18. Because the liquid about to be discharged from the device is sufficiently cooled, after the second spiral tube 13 is installed, the high-temperature wastewater that has just entered the device will coat the outside of the second spiral tube 13, and thus be cooled by the cooler droplets about to be discharged from the device. At the same time, the cooling airflow entering the annular hole of the water tank body 19 can also cool the second spiral tube 13 and the heat-absorbing droplets, preventing the final discharged water temperature from being too high.

[0049] Based on the above embodiments, in a preferred embodiment, such as Figure 2 and 3 As shown, the outer diameter of the second spiral tube 13 is the same as the pitch. This arrangement allows the tubes of the second spiral tube 13 to form a tight arrangement. After the droplets falling from the dripper 10 flow onto the second spiral tube 13, a stable water film forms on the surface of the second spiral tube 13, making the second spiral tube 13 appear to be immersed in water on a microscopic scale, thereby improving the heat exchange effect of the second spiral tube 13. Because the water film adheres to the curved and uneven outer surface of the second spiral tube 13, it not only expands the total surface area of ​​the liquid flowing out of the dripper 10, increasing the heat dissipation surface, but also slows down the overall falling time of the liquid from top to bottom. This improves the cooling effect of the cooling airflow in the annular hole of the water tank body 19 on the liquid flowing out of the dripper 10, preventing the final discharged water temperature from being too high.

[0050] Based on the above embodiments, in a preferred embodiment, such as Figure 6As shown, a liquid storage pipe 22 is installed at the inlet of nozzle 30, and the liquid storage pipe 22 is vertically arranged. The upper part of the liquid storage pipe 22 is connected to the exhaust gas connection pipe 7. A float valve 35 is installed at the bottom of the liquid storage pipe 22. The float valve 35 is a prior art device, which is a device that opens the valve core by relying on buoyancy. Because the exhaust gas emitted by the pulse vacuum sterilizer is mainly steam, it is easy to condense and produce a large amount of liquid water during the emission process. The liquid storage pipe 22 can collect this condensate to prevent the condensate from clogging the exhaust pipe. When the liquid storage pipe 22 is about to be filled with condensate, the float 32 can be lifted by the pull line 33 through the liquid buoyancy, thereby allowing the condensate to be discharged from the riser drain hole 36 at the bottom of the liquid storage pipe 22 and then collected by the water collection tank 4. Also, due to temperature stratification, the condensate at the bottom of the liquid storage pipe 22 is fully cooled water and will not make the final discharge water temperature of the device too high.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A pulsing vacuum sterilizer end waste water exhaust treatment apparatus, characterized by, The utility model relates to a water tank for pulsating vacuum sterilizer, comprising: a water tank body (19) adapted to contain liquid; the water tank body (19) is in communication with a waste water connecting pipe (6) and a general drain pipe (5); the waste water connecting pipe (6) is adapted to be connected with the drain pipe of the external pulsating vacuum sterilizer; a plurality of heat-conducting columns (11) arranged in the interior of the water tank body (19); one end of the heat-conducting column (11) protrudes out of the water tank body (19); a plurality of radiating fins (8) arranged at the end of the heat-conducting column (11) protruding out of the water tank body (19); each radiating fin (8) is arranged at intervals so as to form a radiating fin air gap between each radiating fin (8); a Venturi jet (31) arranged on the air flow path of the radiating fin air gap; the Venturi jet (31) comprises a nozzle (30), a suction chamber (9) and a mixing chamber (29); the inlet of the nozzle (30) is in communication with a waste gas connecting pipe (7); the waste gas connecting pipe (7) is adapted to be connected with the exhaust pipe of the external pulsating vacuum sterilizer; the suction chamber (9) is arranged beside the outlet of the nozzle (30); the outlet of the mixing chamber (29) is in communication with a general exhaust pipe (1); the inlet of the mixing chamber (29) is aligned with the outlet of the nozzle (30), and an interval in communication with the suction chamber (9) is formed between the nozzle (30) and the mixing chamber (29); a suction hole (27) is formed on the suction chamber (9) and faces the radiating fin air gap; a first spiral pipe (18) is arranged in the inner cavity of the water tank body (19); the spiral axis of the first spiral pipe (18) is vertically arranged; the bottom port of the first spiral pipe (18) is in communication with the waste water connecting pipe (6), and the top port of the first spiral pipe (18) is in communication with the inner cavity of the water tank body (19); the bottom end of the water tank body (19) is in communication with the general drain pipe (5); a vertically arranged spiral partition plate (17) is arranged in the inner cavity of the water tank body (19); the heat-conducting column (11) is a heat pipe; the heat-conducting column (11) is vertically arranged and is uniformly distributed around the axis of the water tank body (19); the top end of the heat-conducting column (11) protrudes out of the top of the water tank body (19) and is connected with the radiating fin (8); the part of the heat-conducting column (11) located in the water tank body (19) is connected with the spiral partition plate (17).

2. The pulsing vacuum sterilizer end wastewater exhaust treatment apparatus according to claim 1, characterized by, the cross section of the water tank body (19) is circular ring-shaped; the inner and outer sides of the spiral partition plate (17) are connected with the inner and outer walls of the water tank body (19) correspondingly, and the spiral partition plate (17) divides the inner cavity of the water tank body (19) into a spiral cavity; the pitch of the spiral partition plate (17) is the same as that of the first spiral pipe (18); the first spiral pipe (18) is attached to the spiral partition plate (17).

3. The pulsing vacuum sterilizer end wastewater exhaust treatment apparatus according to claim 2, characterized by, the radiating fin (8) is vertically arranged; the radiating fin (8) is circular ring-shaped; the suction chamber (9) is arranged in the space composed of the circular ring holes of each radiating fin (8); the mixing chamber (29) and the nozzle (30) are vertically arranged; the suction chamber (9) surrounds the nozzle (30); a plurality of suction holes (27) are arranged along the circumference of the suction chamber (9).

4. The pulsing vacuum sterilizer end wastewater exhaust treatment apparatus according to claim 3, characterized by, The outer cover (20) is in the shape of an inverted bucket, and a side ventilation gap (24) is provided between the side wall of the outer cover (20) and the outer side wall of the water tank body (19). The bottom end of the side ventilation gap (24) is the air inlet (3). The radiating fins (8) are arranged between the top surface of the water tank body (19) and the top wall of the outer cover (20). A peripheral ventilation gap (26) is provided between the outer side of the radiating fins (8) and the side wall of the outer cover (20).

5. The pulsing vacuum sterilizer end wastewater exhaust treatment apparatus according to claim 4, characterized by, A water collecting tank (4) is arranged below the water tank body (19), and the bottom of the water collecting tank (4) is communicated with the main drain pipe (5). A bottom ventilation gap (15) is provided between the top of the water collecting tank (4) and the bottom of the water tank body (19). The bottom ventilation gap (15) is communicated with the air inlet (3). The bottommost radiating fin (8) is provided with a top ventilation gap (25) between the top surface of the water tank body (19). The top ventilation gap (25) is communicated with the peripheral ventilation gap (26). The circular hole of the water tank body (19) is communicated between the top ventilation gap (25) and the bottom ventilation gap (15). A drip tray (10) is arranged on the upper part of the circular hole of the water tank body (19), and the drip tray (10) is communicated with the bottom of the water tank body (19) through a liquid guide pipe (12).

6. The pulsing vacuum sterilizer end wastewater exhaust treatment apparatus according to claim 5, wherein A second spiral pipe (13) is vertically arranged below the drip tray (10). One end of the second spiral pipe (13) is communicated with the waste water connecting pipe (6), and the other end of the second spiral pipe (13) is communicated with the bottom port of the first spiral pipe (18).

7. The pulsing vacuum sterilizer end wastewater exhaust treatment apparatus according to claim 6, characterized by, The outer diameter of the second spiral pipe (13) is the same as the pitch.

8. The pulsing vacuum sterilizer end wastewater exhaust treatment apparatus according to any one of claims 1 to 7, characterized by, A liquid storage pipe (22) is arranged at the inlet of the nozzle (30), and the liquid storage pipe (22) is vertically arranged. The upper part of the liquid storage pipe (22) is communicated with the waste gas connecting pipe (7). A float valve (35) is arranged at the bottom of the liquid storage pipe (22).

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