CN115671968A

CN115671968A - Steam-water separation and sterilization integrated device for medical negative pressure suction system

Info

Publication number: CN115671968A
Application number: CN202211249012.9A
Authority: CN
Inventors: 王学磊; 吕刚; 熊光稳
Original assignee: Wuhan Huakang Century Medical Co ltd
Current assignee: Wuhan Huakang Century Medical Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-02-03

Abstract

The invention relates to the technical field of medical air system purification, in particular to a steam-water separation and sterilization integrated device for a medical negative pressure suction system, which comprises a cache storage tank, a conveying assembly, a steam-water separation module and a sterilization module, wherein the cache storage tank is communicated with the negative pressure suction system; the conveying assembly conveys the fluid into the steam-water separation module, and the steam-water separation module separates out liquid water in the steam-water separation and conveys the liquid water to the disinfection module; the steam-water separation module comprises a separation assembly for separating gas and liquid, a cooling assembly for cooling and an exhaust assembly; the sterilization module includes a sterilization canister, an infusion assembly for delivering a liquid to the sterilization canister, and an administration assembly. The invention can kill viruses and bacteria in the tail gas discharged by the medical negative pressure suction system and cool the tail gas simultaneously so as to avoid polluting the environment.

Description

Steam-water separation and sterilization integrated device for medical negative pressure suction system

Technical Field

The invention relates to the technical field of purification of medical vacuum suction systems, in particular to a steam-water separation and sterilization integrated device for a medical negative pressure suction system.

Background

In some operating rooms, isolation wards of respiratory tract sensing diseases or other special medical fields, negative pressure suction is needed for absorbing body fluid, dirt or therapeutic liquid of patients; for a system adopting the negative pressure of the water ring pump, the negative pressure attracts the waste water containing bacteria and viruses generated in use, at present, an accurate disinfection mode does not exist, most of the waste water is directly discharged into a sewage pipe network, and the risk of virus diffusion can be increased.

At present, chinese patent application with publication number CN114100181A discloses a medical negative pressure controller water vapor collection assembly, which comprises a collection head connected with a controller, wherein the other end of the controller is connected with a water vapor collection tower through a collection pipe, a negative pressure regulator is arranged on the collection pipe, a water vapor collection mechanism is arranged in the water vapor collection tower, the water vapor collection mechanism comprises a condensation pipe connected with the collection pipe through a connecting pipe, the condensation pipe is arranged on the side surface of a support in a surrounding manner, partition plates are arranged on the upper side and the lower side of the condensation pipe, a refrigerator is arranged in the support, the bottom end of the condensation pipe penetrates through the lower partition plate, a collection barrel is arranged on the lower portion of an inner cavity of the water vapor collection tower, and a drain valve and an exhaust valve are respectively arranged on the side surface of the collection barrel.

The existing water vapor collecting device can only simply remove and collect partial water vapor; the above technical problems are still not solved, and a better solution is urgently needed.

Disclosure of Invention

Based on the above description, the invention provides a steam-water separation and sterilization integrated device for a medical purification system, so as to solve the problem that water vapor with viruses or harmful bacteria is discharged to the external environment without treatment.

The technical scheme for solving the technical problems is as follows: a steam-water separation and sterilization integrated device for a medical negative pressure suction system comprises a cache storage tank, a conveying assembly, a steam-water separation module and a disinfection module, wherein the cache storage tank is communicated with the negative pressure suction system;

the conveying assembly conveys fluid into the steam-water separation module, and the steam-water separation module separates liquid water in the steam-water separation and conveys the separated liquid water to the disinfection module;

the steam-water separation module comprises a separation assembly for separating gas and liquid, a cooling assembly for cooling and an exhaust assembly;

the sterilization module includes a sterilization canister, an infusion assembly for delivering a liquid to the sterilization canister, and an administration assembly.

Through the technical scheme, the buffer storage tank is used for temporarily storing the tail gas of the negative pressure suction system to be processed, and the conveying assembly is used for conveying the tail gas to be processed to the steam-water separation module; the separation component separates gas and liquid in the water vapor, namely water in the tail gas of the negative pressure suction system is condensed out; the cooling component is used for reducing the temperature in the separation module so as to improve the condensation efficiency; the exhaust assembly is used for guiding the dry gas to be exhausted, so that the aim of separating the gas from the liquid is fulfilled; the disinfection tank is used for storing liquid to be disinfected, the liquid separated from the separation module is conveyed into the disinfection tank by the infusion assembly, and the dosing assembly is used for throwing disinfection medicines into the disinfection tank so as to disinfect toxic and harmful substances in the liquid.

On the basis of the technical scheme, the invention can be further improved as follows.

Furthermore, the separation assembly comprises a separator tank body, a separation air inlet pipe communicated with the separator tank body, a separation spiral sheet arranged inside the separator tank body and an exhaust pipe for exhausting dry gas, wherein the separation spiral sheet is wound on the outer side of the exhaust pipe.

Through the technical scheme, the separation air inlet pipe is communicated with the tail gas of the negative pressure suction system, and after the tail gas of the hot negative pressure suction system is contacted with the separation spiral sheet, water vapor in the tail gas can be condensed into liquid; the separation spiral sheet is spiral and has a larger surface area so as to be more fully contacted with the tail gas; meanwhile, the kinetic energy of the tail gas can be consumed, and the temperature of the tail gas can be reduced; the final dried gas is exhausted from the exhaust pipe.

Furthermore, the cooling assembly comprises a cold water inlet pipe communicated with the separator tank body, a temperature control valve arranged on the cold water inlet pipe and a water temperature probe, the water temperature probe is arranged inside the separator tank body, and the water temperature probe is in electrical signal connection with the temperature control valve;

when the temperature inside the separator tank body is too high, the water temperature probe feeds the measured temperature back to the temperature control valve, the temperature control valve is opened, and cold water enters the separator tank body.

Through the technical scheme, the water temperature probe is matched with the temperature control valve, when the temperature in the separator tank body exceeds a preset high-temperature threshold value, the temperature control valve adjusts the cold water inlet pipe to be in a communicated state, so that cold water flows into the separator tank body, and the interior of the separator tank body is cooled; when the temperature in the separator tank body is reduced to a preset low-temperature threshold value, the temperature control valve cuts off the cold water inlet pipe and stops water delivery into the separator tank body.

Furthermore, one end of the cold water inlet pipe, which is close to the separator tank body, is provided with a one-way valve, and the one-way valve enables water to flow only towards the separator tank body.

Through the technical scheme, the single valve limits the direction of water flow, water with viruses and harmful bacteria is prevented from flowing into the cold water inlet pipe from the separator tank body, and further the diffusion of the viruses and the bacteria is avoided.

Furthermore, the exhaust assembly comprises a tail gas pipe and a backflow preventing elbow, wherein the tail gas pipe is communicated with the top of the separator tank body, and the backflow preventing elbow is arranged at one end, far away from the separator tank body, of the exhaust pipe; the tail gas pipe is communicated with the exhaust pipe;

the outlet of the backflow-preventing elbow is arranged downwards.

Through above-mentioned technical scheme, the tail gas pipe supplies dry gaseous effluent, and final combustion gas still has certain heat and very a small amount of moisture, prevents flowing backward the export of elbow and sets up downwards, can avoid tail gas upwards to spout and scald the people near tail gas pipe export.

Further, the infusion assembly comprises a sewage pipe and a sewage pump, wherein the sewage pipe is communicated with the separator tank body and the disinfection tank, and the sewage pump is arranged on the sewage pipe.

Furthermore, the chemical feeding assembly comprises a chemical storage box, a chemical feeding pipe and a chemical feeding pump communicated with the chemical feeding pipe, and two ends of the chemical feeding pipe are respectively communicated with the chemical storage box and the disinfection tank.

Furthermore, the bottom of the disinfection tank is communicated with an electromagnetic drain valve.

Through the technical scheme, the time and duration of sewage discharge can be set according to the actual sewage discharge requirement, so that the automation degree of equipment is improved.

Furthermore, the conveying assembly comprises two groups of water ring pumps, a sewage inlet pipe and a sewage outlet pipe, the two groups of water ring pumps are arranged in parallel, and one of the two groups of water ring pumps is arranged for standby;

the sewage inlet pipe both ends communicate with the separator jar body and water ring pump respectively, sewage outlet pipe both ends communicate with the gentle storage jar of water ring pump respectively.

Further, be provided with chlorine concentration probe in the disinfection jar, chlorine concentration probe electric signal connection has the medicine controller, medicine controller and dosing pump electric signal connection.

According to the technical scheme, sodium chlorate is used as disinfectant liquid, and the sodium chlorate can react with harmful viruses and bacteria in water to play a role in sterilization; the chlorine concentration probe is used for monitoring the concentration of chloride ions in water in real time so as to control the variable-frequency dosing pump, thereby realizing the accurate feeding of liquid medicine.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

1. the steam-water separation module separates water in the steam-water mixture input into the separator tank body, and simultaneously, dry gas is discharged from the upper end of the separator tank body; the water vapor with virus and harmful bacteria in the waste gas can be better prevented from being discharged into the environment;

2. the medicine storage box is used for storing disinfection medicines, the medicine feeding pump is preferably a variable-frequency medicine feeding pump, medicines can be conveniently conveyed into the disinfection tank according to needs, water in the disinfection tank can be well disinfected, and meanwhile, the residual of disinfection water can be avoided.

Drawings

Fig. 1 is a schematic overall structure diagram of a steam-water separation and sterilization integrated device for a medical negative pressure suction system according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a separating assembly and a cooling assembly according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of an exhaust assembly according to an embodiment of the present invention;

FIG. 4 is a schematic view of the internal structure of the separator tank according to the embodiment of the present invention;

fig. 5 is a schematic view of an infusion set and administration set in accordance with an embodiment of the present invention.

1. Caching a storage tank; 2. a delivery assembly; 21. a water ring pump; 22. a sewage inlet pipe; 23. a sewage outlet pipe; 3. a steam-water separation module; 4. a sterilization module; 41. a sterilizing tank; 42. a chlorine concentration probe; 43. a dosing controller; 5. a separation assembly; 51. a separator tank; 52. separating an air inlet pipe; 53. separating the spiral sheet; 54. an exhaust pipe; 6. a cooling assembly; 61. a cold water inlet pipe; 62. a temperature control valve; 63. a water temperature probe; 64. a one-way valve; 7. an exhaust assembly; 71. a tail gas pipe; 72. the backflow preventing elbow; 8. a fluid delivery assembly; 81. a sewage pipe; 82. a sewage pump; 9. an administration assembly; 91. a medicine storage box; 92. a medicine feeding pipe; 93. a dosing pump; 94. an electromagnetic blow-down valve; 10. and (4) a filter screen.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Example (b):

referring to fig. 1, a medical negative pressure is integrative device of steam-water separation sterilization for attraction system, includes buffer tank 1, delivery module 2, steam-water separation module 3 and disinfection module 4, and buffer tank 1 is used for the tail gas exhaust pipe intercommunication with the negative pressure attraction system, and the tail gas that the negative pressure attraction system produced can temporarily be stored in buffer tank 1. The conveying assembly 2 conveys the tail gas of the negative pressure suction system temporarily stored in the cache storage tank 1 to the steam-water separation module 3.

Referring to fig. 1, a buffer storage tank 1 has a volume of 1.5 cubic, an air inlet of the buffer storage tank 1 is disposed on a side wall near a lower end, and an air outlet is disposed on a side wall near an upper end; the conveying assembly 2 comprises two groups of water ring pumps 21, a sewage inlet pipe 22 and a sewage outlet pipe 23, the two groups of water ring pumps 21 are arranged in parallel, the two groups of water ring pumps 21 are arranged in a standby mode, one water ring pump 21 operates in a normal state, and the other water ring pump is used for standby. Wherein, the air inlet is communicated with a tail gas discharge pipeline of the negative pressure suction system through a pipeline, and the air outlet is communicated with a sewage inlet pipe 22 through a pipeline; the lateral wall bolted connection of buffer memory storage tank 1 has the negative pressure sensor with jar internal portion intercommunication to monitor the internal pressure condition of buffer memory storage tank 1 constantly, buffer memory storage tank 1 need be in the negative pressure state, makes during gaseous entering into buffer memory storage tank 1 that can be faster.

Referring to fig. 2 and 3, the steam-water separation module 3 includes a separation assembly 5 for separating gas and liquid, a cooling assembly 6 for cooling, and an exhaust assembly 7, the separation assembly 5 includes a separator tank 51, a separation inlet pipe 52, a separation spiral sheet 53, and an exhaust pipe 54, and the separator tank 51 is a cylindrical tank with an axis set vertically; the separation air inlet pipe 52 is inserted into the separator tank body 51 from the upper end of the separator tank body 51 close to the side wall, the separation spiral sheet 53 is arranged in the separator tank body 51, and the axis of the separation spiral sheet 53 is coaxial with the axis of the separator tank body 51; an exhaust pipe 54 penetrates into the separator tank 51 from the middle position of the top end of the separator tank 51, the exhaust pipe 54 is arranged coaxially with the separator tank 51, and the separation spiral piece 53 is wound on the outer side of the exhaust pipe 54; the exhaust pipe 54 penetrates through the separation spiral sheet 53, the filter screen 10 is arranged at the lower end of the exhaust pipe 54, and the filter screen 10 can be made of multiple layers of high-density steel wire meshes so as to further separate water.

The outer wall of the separator tank body 51 is arranged in an interlayer, a cavity is arranged in the interlayer, and the temperature can be adjusted in a circulating water bath mode; and the heat insulation material can also be adopted for filling, so that the heat insulation effect is realized.

Referring to fig. 1 and fig. 2, two ends of the sewage inlet pipe 22 are respectively communicated with the separator tank 51 and the water ring pump 21, two ends of the sewage outlet pipe 23 are respectively communicated with the water ring pump 21 and the buffer storage tank 1, and the water ring pump 21 conveys the negative pressure suction system tail gas in the buffer storage tank 1 to the separator tank 51; when the tail gas of the negative pressure suction system is contacted with the separation spiral sheet 53, the water in the tail gas is condensed into water drops by cooling; the beads then flow down the separation spiral 53, left and right by gravity.

Referring to fig. 2 and 3, the exhaust assembly 7 includes a tail gas pipe 71 and a backflow preventing elbow 72, the tail gas pipe 71 is communicated with the exhaust pipe 54, an axis of the tail gas pipe 71 is horizontally arranged, and the backflow preventing elbow 72 is arranged at one end of the tail gas pipe 71 far away from the exhaust pipe 54; after the tail gas of the negative pressure suction system is separated by the steam-water separation module 3, the dried gas is discharged through the exhaust pipe 54 and the tail gas pipe 71. The backflow-preventing elbow 72 is a 90-degree elbow, and an outlet of the backflow-preventing elbow 72 is arranged downwards; on the one hand, the hot gas can be prevented from being sprayed upwards, so that the safety is improved, and on the other hand, external wind can be prevented from flowing backwards into the separator tank body 51 from the pipeline.

Referring to fig. 2, the temperature reducing assembly 6 includes a cold water inlet pipe 61 communicated with the separator tank 51, a temperature control valve 62 and a water temperature probe 63, the temperature control valve 62 is disposed on the cold water inlet pipe 61, the temperature control valve 62 can control the connection and disconnection of the cold water inlet pipe 61, the water temperature probe 63 is disposed inside the separator tank 51 near the lower end, and the water temperature probe 63 is in electrical signal connection with the temperature control valve 62; excessive temperatures in the separator tank 51 can affect the condensation effect and thus it is desirable to monitor and control the temperature in the separator tank 51. And a check valve 64 is arranged on one side of the cold water inlet pipe 61 close to the separator tank body 51, and the check valve 64 prevents liquid from flowing into the cold water inlet pipe 61 from the steam-water separator, so that sewage in the steam-water separator is prevented from flowing into the cold water inlet pipe 61.

The water temperature probe 63 sends the detected temperature to the thermo valve 62 in the form of an electric signal, and when the temperature is higher than a high temperature preset threshold set by the thermo valve 62, the thermo valve 62 becomes a passage, and cold water enters the separator tank 51 through the cold water inlet pipe 61, thereby cooling the separator tank 51. When the temperature in the separator tank 51 is lower than the preset low-temperature threshold set by the temperature control valve 62, the temperature control valve 62 is closed, so that the cold water inlet pipe 61 is in a closed state.

Referring to fig. 1 and 5, the disinfection module 4 comprises a disinfection tank 41, an infusion assembly 8 and an administration assembly 9, a support platform is arranged below the separator tank body 51, the disinfection tank 41 is detachably fixed on the support platform, the disinfection tank 41 is in a cylindrical shape with a vertical axis, a sewage discharge pipe is communicated with the bottom of the disinfection tank 41, and an electromagnetic sewage discharge valve 94 is communicated with the sewage discharge pipe; the infusion set 8 is used for delivering the liquid separated from the separator tank body 51 to the disinfection tank 41, the infusion set 8 comprises a sewage pipe 81 for communicating the separator tank body 51 and the disinfection tank 41 and sewage pumps 82 arranged on the sewage pipe 81, two sets of sewage pumps 82 are arranged in parallel, and one set of sewage pump 82 is used for standby.

Referring to fig. 1 and 5, the administration assembly 9 comprises a medicine storage box 91, a medicine feeding pipe 92 and a medicine feeding pump 93 communicated with the medicine feeding pipe 92, and the top of the disinfection tank 41 is communicated with a sewage inlet, an exhaust port and a liquid medicine inlet; the medicine feeding pipe 92 extends from the medicine storage box 91 to the sterilizing tank 41, and the medicine feeding pipe 92 is connected with the liquid medicine inlet through a flange; the medicine storage box 91 is connected to the outer side of the disinfection tank 41 through bolts, the bottom of the medicine storage box 91 is connected with the medicine adding controller 43, the medicine adding controller 43 is in electrical signal connection with the medicine adding pump 93, the medicine adding controller 43 is in electrical signal connection with the chlorine concentration probe 42, the chlorine concentration probe 42 is connected to the inside of the disinfection tank 41 through bolts, and the chlorine concentration probe 42 is arranged at a position close to the bottom of the disinfection tank 41; a stirring blade which is rotatably matched with the disinfection tank 41 can be arranged at the middle part of the disinfection tank 41, and a motor is arranged to drive the stirring blade to rotate;

disinfecting liquid medicine enters from the top of the disinfecting tank 41 to disinfect the sewage in the disinfecting tank 41, when toxic and harmful substances in the upper layer of sewage are used up, the disinfecting liquid medicine is continuously added into the disinfecting tank 41, the chlorine concentration probe 42 at the bottom of the disinfecting tank 41 detects the content of chlorine ions, and when the concentration of the chlorine ions in the water is stabilized at 0.3-0.4mg/L, the disinfecting liquid medicine is stopped being added into the disinfecting tank 41; the chlorine concentration probe 42 is in electrical signal connection with the dosing controller 43.

The chlorine concentration probe 42 is used for detecting the concentration of the chlorine ions in the disinfection tank 41 and feeding back data to the dosing controller 43; the chemical adding controller 43 adds a disinfectant into the disinfection tank 41 according to the concentration of the chloride ions;

the administration step:

800L of sewage to be treated is stored in the disinfection tank 41, and the adopted disinfectant is sodium hypochlorite solution with the concentration of 10%;

step 1, continuously adding disinfectant into a disinfection tank 41 at a speed of 10mL per second by using a variable-frequency dosing pump 93, and stopping adding disinfectant after continuously adding disinfectant for 1 minute;

step 2, stirring the mixture in the disinfection tank 41 by adopting a stirring blade for 5 minutes;

step 3, standing for 5 minutes;

step 4, repeating the step 1, the step 2 and the step 3 for four times;

step 5, when the chloride ion concentration detected by the chloride concentration probe 42 is stabilized at 0.3-0.4mg/L and the chloride ion concentration does not have obvious reduction trend after standing for 5 minutes, the medicine adding controller 43 controls the variable-frequency medicine adding pump 93 to stop adding medicine into the sterilizing tank 41;

and 6, if the chlorine concentration probe 42 detects that the concentration of the chlorine ions has a remarkable reduction trend, continuing to repeat the

steps

1, 2 and 3.

After the medicine adding controller 43 controls the variable-frequency medicine adding pump 93 to stop adding medicine, a signal is synchronously sent to the master controller, and the master controller controls the electromagnetic blow-down valve 94 to be opened so as to discharge disinfected sewage in the disinfection tank 41.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A steam-water separation and sterilization integrated device for a medical negative pressure suction system is characterized by comprising a cache storage tank (1) communicated with the negative pressure suction system, a conveying assembly (2) for driving fluid to flow, a steam-water separation module (3) and a disinfection module (4);

the conveying assembly (2) conveys fluid into the steam-water separation module (3), and the steam-water separation module (3) separates liquid water in the steam-water separation and conveys the separated liquid water into the disinfection module (4);

the steam-water separation module (3) comprises a separation component (5) for separating gas and liquid, a cooling component (6) for cooling and an exhaust component (7);

the disinfection module (4) comprises a disinfection tank (41), an infusion set (8) for delivering a liquid to the disinfection tank (41), and an administration set (9).

2. The medical negative pressure suction system steam-water separation and sterilization integrated device according to claim 1, wherein the separation assembly (5) comprises a separator tank body (51), a separation air inlet pipe (52) communicated with the separator tank body (51), a separation spiral sheet (53) arranged inside the separator tank body (51) and an exhaust pipe (54) for exhausting dry gas, and the separation spiral sheet (53) is wound on the outer side of the exhaust pipe (54).

3. The medical negative pressure suction system steam-water separation and sterilization integrated device is characterized in that the cooling assembly (6) comprises a cold water inlet pipe (61) communicated with the separator tank body (51), a temperature control valve (62) arranged on the cold water inlet pipe (61) and a water temperature probe (63), the water temperature probe (63) is arranged inside the separator tank body (51), and the water temperature probe (63) is in electric signal connection with the temperature control valve (62);

when the temperature in the separator tank body (51) is too high, the water temperature probe (63) feeds the measured temperature back to the temperature control valve (62), the temperature control valve (62) is opened, and cold water enters the separator tank body (51).

4. The medical negative pressure suction system steam-water separation and sterilization integrated device as claimed in claim 3, wherein one end of the cold water inlet pipe (61) close to the separator tank body (51) is provided with a one-way valve (64), and the one-way valve (64) enables water to flow only in the direction of the separator tank body (51).

5. The medical negative pressure suction system steam-water separation and sterilization integrated device as claimed in claim 2, wherein the exhaust assembly (7) comprises a tail gas pipe (71) communicated with the top of the separator tank body (51) and a backflow preventing elbow (72), and the backflow preventing elbow (72) is arranged at one end of the exhaust pipe (54) far away from the separator tank body (51); the tail gas pipe (71) is communicated with the exhaust pipe (54);

the outlet of the backflow-preventing elbow (72) is arranged downwards.

6. The integrated steam-water separation and sterilization device for the medical negative pressure suction system as claimed in claim 2, wherein the infusion set (8) comprises a sewage pipe (81) for communicating the separator tank body (51) and the sterilization tank (41), and a sewage pump (82) disposed on the sewage pipe (81).

7. The medical negative pressure suction system steam-water separation and sterilization integrated device as claimed in claim 1, wherein the chemical dosing assembly (9) comprises a chemical storage box (91), a chemical dosing pipe (92) and a chemical dosing pump (93) communicated with the chemical dosing pipe (92), and two ends of the chemical dosing pipe (92) are respectively communicated with the chemical storage box (91) and the disinfection tank (41).

8. The medical negative pressure suction system steam-water separation and sterilization integrated device as claimed in any one of claims 1 to 7, wherein the bottom of the disinfection tank (41) is communicated with an electromagnetic blow-down valve (94).

9. The medical negative pressure suction system steam-water separation and sterilization integrated device as claimed in any one of claims 2 to 6, wherein the conveying assembly (2) comprises two groups of water ring pumps (21), a sewage inlet pipe (22) and a sewage outlet pipe (23), the two groups of water ring pumps (21) are arranged in parallel, and the two groups of water ring pumps (21) are arranged for one standby;

the two ends of the sewage inlet pipe (22) are respectively communicated with the separator tank body (51) and the water ring pump (21), and the two ends of the sewage outlet pipe (23) are respectively communicated with the water ring pump (21) and the slow storage tank (1).

10. The medical negative pressure suction system steam-water separation and sterilization integrated device according to claim 7, wherein a chlorine concentration probe (42) is arranged in the sterilizing tank (41), the chlorine concentration probe (42) is electrically connected with a dosing controller (43), and the dosing controller (43) is electrically connected with a dosing pump (93).