CN218811152U

CN218811152U - Vacuum collection and disinfection device for marine medical sewage

Info

Publication number: CN218811152U
Application number: CN202222852657.3U
Authority: CN
Inventors: 孙春霞; 尤晓露; 殷祥; 李仕同; 李潭; 陈纪赛; 张永良
Original assignee: CSSC Nanjing Luzhou Environment Protection Co Ltd
Current assignee: CSSC Nanjing Luzhou Environment Protection Co Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-04-07
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a vacuum collection and disinfection device for marine medical sewage, which comprises a vacuum collection unit, a biochemical treatment unit and a sterilization and disinfection unit; the vacuum collection unit comprises a vacuum container and a vacuum pump station, the biochemical treatment unit comprises a treatment box body, a drainage pipe system and an aeration system, and the sterilization and disinfection unit comprises a primary sterilization and disinfection device, a residual chlorine neutralization device and a secondary sterilization and disinfection device; the device adopts the vacuum pump station, collects boats and ships medical wastewater through the vacuum negative pressure effect, reduces and collects the pipe diameter, plays the effect of water conservation and emission reduction, cooperates degassing unit, chlorine residue neutralization apparatus and secondary sterilization degassing unit of once disinfecting, effectively disinfects the disinfection, does not produce secondary pollution to the medical wastewater who collects, also can not produce negative effects to follow-up sewage treatment, and equipment utilization safety and degree of automation are high.

Description

Vacuum collection and disinfection device for marine medical sewage

Technical Field

The utility model belongs to the technical field of sewage collection handles, concretely relates to degassing unit is collected in marine medical sewage vacuum.

Background

Ships play an important role in water transportation as important vehicles for inland and ocean shipping. In the shipping process, the medical sewage of the ship can not be generated inevitably, for large-scale water surface ships, such as mail ships, medical rescue ships and the like, because the carrying personnel are many and the personnel are dense, in the ocean navigation process, relatively perfect medical conditions are needed to ensure the health of crews and passengers, the generation amount of the medical sewage is larger, the health of the crews and the passengers is ensured, in order to avoid the medical sewage polluting the water area environment, the pollution emission needs to be controlled, all the wastewater in the medical area (including medical rooms, sickrooms and the like) on the ship is collected in time, and the wastewater is transferred to a sewage treatment device for a domestic ship for treatment after being disinfected, sterilized or treated independently, and is received after reaching the standard or being directly discharged to the outboard or being communicated to the shore.

Generally, the waste water generated in the medical treatment process is mixed with pathogenic microorganisms such as infectious viruses and bacteria in excrement, urine, blood and washing waste liquid, has strong infectivity, belongs to 'black water' in ship sewage, and currently, the ship medical sewage is taken as one of 'black water', is directly discharged into a ship domestic sewage treatment device or a directly discharged outboard or revetment without pretreatment in a gravity collection mode, and mainly has the following defects:

1. the gravity medical sewage collection usually needs to adopt a large-pipe-diameter pipeline collection system, such as a DN150 pipe diameter collection system, more flushing water is needed in the use process, the hydraulic load is larger during medical sewage treatment, generally, about 70L of flushing water is needed for one time during gravity collection and flushing, and the economic value is lower;

2. gravity medical sewage collection system when the pipeline was laid, because medical sewage only relies on gravity to carry downwards, in the pipeline was laid, house steward need set up 1:66.7-1:50 pipeline inclination, branch needs to be set 1:100-1:66.7, the sewage is normally conveyed downstream, a large space is required for supporting, and the highest utilization of the ship space is not facilitated;

3. the gravity medical sewage collection system is not provided with disinfection pretreatment after collection, and is directly discharged into a marine domestic sewage treatment device or directly outboard or revetment, so that the environment on the ship is polluted, personnel are infected, the safety and the environmental protection are low, and the defects of passenger ships, passenger rolling ships, military auxiliary ships, mail ships and the like with high ship carrying capacity are more prominent. SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model discloses a degassing unit is collected in marine medical sewage vacuum of main aim at design, solves medical sewage and collects the technical problem that the processing can not effective energy saving and emission reduction and occupation space is big on boats and ships, simultaneously, solves in piping system maintenance and clearance process, and the environment is polluted, personnel are infected risk problem on the boats and ships that cause.

In order to realize the purpose, the utility model adopts the following technical scheme:

a vacuum collection and disinfection device for marine medical sewage comprises a vacuum collection unit, a biochemical treatment unit and a sterilization and disinfection unit; the vacuum collection unit comprises a vacuum container for receiving medical sewage and a vacuum pump station, and one end of the vacuum pump station is connected with the vacuum container; the biochemical treatment unit comprises a treatment box body, a drainage pipe system and an aeration system arranged in the treatment box body, the other end of the vacuum pump station is connected with the treatment box body, and the treatment box body is connected with one end of the drainage pipe system; the sterilization and disinfection unit comprises a primary sterilization and disinfection device, a residual chlorine neutralization device and a secondary sterilization and disinfection device, wherein the primary sterilization and disinfection device is connected to the treatment box body, the residual chlorine neutralization device is connected to the drainage pipe system, and the secondary sterilization and disinfection device is connected with the other end of the drainage pipe system; the processing box body comprises an electric cabinet for controlling the vacuum collection unit, the biochemical processing unit and the sterilization and disinfection unit.

As a further description of the utility model, the vacuum pump station including wash pipeline and sewage circulation pipeline, the one end and the sewage circulation pipeline of washing the pipeline communicate mutually, and the other end of washing the pipeline sets up the screw thread ball valve, the one end and the vacuum container of sewage circulation pipeline link to each other, and the other end and the processing box body of sewage circulation pipeline link to each other.

As further description of the utility model, the flushing pipeline is provided with a vacuum pressure switch and a vacuum pressure gauge, the sewage circulating pipeline is provided with a vacuum pump and a buffer tank, and both sides of the vacuum pump are provided with flange ball valves; the vacuum pressure switch, the vacuum pump and the buffer tank are connected to an electric cabinet, and the electric cabinet comprises a low vacuum pressure alarm switch.

As a further description of the utility model, the primary sterilization and disinfection device comprises a first dosing tank and a dosing metering pump, the first dosing tank is connected to the treatment box body through a pipeline, and the dosing metering pump is arranged in the pipeline connecting the first dosing tank and the treatment box body.

As a further description of the present invention, the drainage system comprises a drainage pipe and a sewage transfer unit and a return pipe system which are arranged on the drainage pipe, the sewage transfer unit is located at the front side of the return pipe system, and the residual chlorine neutralizing device is arranged at the rear side of the return pipe system.

As a further description of the present invention, the sewage transfer unit includes a ball valve and a transfer pump which are sequentially arranged, and the transfer pump is connected to the electric cabinet; the water return pipe system comprises a water return pipe and a water return pipe ball valve connected to the water return pipe, one end of the water return pipe is connected to a drain pipe, and the other end of the water return pipe is connected to the processing box body.

As a further description of the utility model, the chlorine residue neutralization device include the second dosing tank and the neutralization measuring pump, the second dosing tank is connected to the drain pipe through the pipeline, the neutralization measuring pump sets up in the pipeline that the second dosing tank is connected with the drain pipe.

As a further description of the utility model, the secondary sterilization and disinfection device comprises an ultraviolet sterilization and disinfection device, the water discharge pipe at the front side of the ultraviolet sterilization and disinfection device is provided with a ball valve, and the ultraviolet sterilization and disinfection device comprises a discharge port for discharging.

As a further description of the utility model, the inside liquid level switch that sets up of processing box, liquid level switch is connected to the electric cabinet.

As a further description of the present invention, the liquid level switch is at least three, and is respectively disposed at the upper, middle and lower portions of the inner side of the processing box.

Compared with the prior art, the utility model discloses a technological effect does:

the utility model provides a degassing unit is collected in marine medical sewage vacuum adopts vacuum pump station, collects boats and ships medical sewage through the vacuum negative pressure effect, reduces and collects the pipe diameter, plays water conservation and emission reduction's effect, and the disinfection of effectively disinfecting, not producing secondary pollution to the medical wastewater who collects are disinfected to cooperation primary sterilization degassing unit, chlorine residue neutralization apparatus and secondary sterilization degassing unit, also can not produce negative effects to follow-up sewage treatment, and equipment utilization safety and degree of automation are high.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is the schematic view of the electric cabinet of the present invention.

In the figure, 1, a vacuum container, 11, a sewage inlet, 12, a sewage outlet, 13, a threaded ball valve, 14, a vacuum pressure switch, 15, a vacuum pressure gauge, 16, a vacuum pump, 17, a buffer tank, 18, a flange ball valve, 2, a treatment box body, 21, an electric cabinet, 22, a sewage inlet, 23, a dosing port, 24, a compressed air port, 25, an air vent, 26, a flushing water port, 27, an overflow port, 28, a sewage discharge port, 29, a water return port, 3, an aeration system, 4, a primary sterilization device, 41, a first dosing tank, 42, a dosing metering pump, 5, a residual chlorine neutralization device, 51, a second dosing tank, 52, a neutralization metering pump, 6, a secondary sterilization device, 61, an ultraviolet sterilizer, 62, a discharge port, 7, a sampling cock, 8, a sewage transfer unit, 81, a transfer pump, 9, a water return pipe system, 91, a return water return pipe ball valve and 10, a liquid level switch.

Detailed Description

The present invention is described in detail below with reference to the attached drawings:

a vacuum collection and disinfection device for medical sewage of a ship is shown in a reference figure 1-2 and comprises a vacuum collection unit, a biochemical treatment unit and a sterilization and disinfection unit; the vacuum collection unit comprises a vacuum container 1 for receiving medical sewage and a vacuum pump station, and one end of the vacuum pump station is connected with the vacuum container 1; the biochemical treatment unit comprises a treatment box body 2, a drainage pipe system and an aeration system 3 arranged in the treatment box body 2, the other end of the vacuum pump station is connected with the treatment box body 2, and the treatment box body 2 is connected with one end of the drainage pipe system; the sterilization and disinfection unit comprises a primary sterilization and disinfection device 4, a residual chlorine neutralization device 5 and a secondary sterilization and disinfection device 6, wherein the primary sterilization and disinfection device 4 is connected to the treatment box body 2, the residual chlorine neutralization device 5 is connected to a drainage pipe system, and the secondary sterilization and disinfection device 6 is connected with the other end of the drainage pipe system; the processing box body 2 comprises an electric cabinet 21 for controlling the vacuum collection unit, the biochemical processing unit and the sterilization and disinfection unit.

Specifically, the vacuum container 1 comprises a sewage inlet 11 and a sewage outlet 12, the sewage inlet 11 is connected to medical wastewater generation places such as a diagnosis room and a ward and is used for collecting medical wastewater, and the vacuum pump station is connected with the sewage outlet 12; the treatment box body 2 comprises a sewage inlet 22, a medicine adding port 23, a compressed air port 24, an air vent 25, a flushing water port 26 and an overflow port 27 which are arranged at the top, and a sewage discharge port 28 and a water return port 29 which are arranged at the bottom, and the lower part of the treatment box body 2 is provided with a sampling cock 7; the aeration system 3 is arranged in the treatment box body 2 and is positioned at the bottom of the treatment box body 2, and the aeration system 3 comprises an aerator and an aeration pipeline; the vacuum pump station is connected to a sewage inlet 22 of the treatment tank body 2, a compressed air port 24 is filled with compressed air through a pipeline, and a ball valve is arranged on the pipeline; the primary sterilization and disinfection device 4 is connected to a dosing port 23 of the treatment box body 2; the drainage pipe system comprises a drainage pipe, a sewage transfer unit 8 and a water return pipe system 9, wherein the sewage transfer unit 8 and the water return pipe system 9 are arranged on the drainage pipe, the sewage transfer unit 8 is positioned on the front side of the water return pipe system 9, and the residual chlorine neutralizing device 5 is connected to the drainage pipe on the rear side of the water return pipe system 9; one end of the drain pipe is connected with a sewage discharge port 28 of the treatment box body 2, and the other end is connected with the secondary sterilization and disinfection device 6; the sewage transfer unit 8 comprises a ball valve and a transfer pump 81 which are arranged in sequence, and the transfer pump 81 is connected to the electric cabinet 21; the water return pipe system 9 comprises a water return pipe and a water return pipe ball valve 91 arranged on the water return pipe, one end of the water return pipe is connected to a drain pipe, and the other end of the water return pipe is connected to the water return port 29 of the treatment box body 2.

The electric cabinet 21 comprises a main switch Q0 (GSB 2-63M/3P), protection circuit breakers Q1-Q5 (GSM 8 series), contactors KM1-KM5 (GSC 1 series), control circuit breakers F0 (GSB 2-63), 24V power circuit breakers F1 (GSC 1-63), emergency stop buttons S0 (LAY 39 series), pump manual/automatic selection buttons (S1-S5) (LAY 39 series), transformers T1 (JBK 5-400 VA), a touch screen A1 (MGCTC 1071G), PLC A2 (CPU-2001-2404), a PLC DI module (DIM 2001-0801), a PLC control program and the like. The PLC automatic control program is adopted, comprises a PLC main control module and a PLC extension module, has the functions of manual and automatic control, transfer prohibition, motor overload protection and audible and visual alarm, and has the functions of operation indication and comprehensive fault remote transmission.

The technical scheme disclosed by the embodiment mainly comprises a vacuum container 1, a vacuum pump station, a treatment tank body 2, an aeration system 3, a primary sterilization and disinfection device 4, a residual chlorine neutralization device 5, a secondary sterilization and disinfection device 6, a drainage system, an electric cabinet 21, a pipeline and valve accessories in the pipeline; utilize the effect of vacuum pump station to carry out the medical wastewater pump that diagnoses the department such as room and ward on the boats and ships and produce and send vacuum container 1 to, squeeze into medical wastewater and carry out the disinfection of once disinfecting in handling box 2 again, in handling box 2 processing procedure, through the cooperation of aerator and aeration pipeline, with compressed air in through diffusing to medical wastewater, play the function with liquid medicine and medical wastewater intensive mixing stirring, on the discharge pipe system, through chlorine residue neutralization apparatus 5 neutralization medical wastewater residual chlorine residue, then handle through secondary sterilization degassing unit 6, thereby reach the disinfection effect of thoroughly disinfecting, reduce secondary pollution and the negative effects to follow-up sewage biochemical treatment.

It should be further noted that the vacuum pump station comprises a flushing pipeline and a sewage circulation pipeline, one end of the flushing pipeline is communicated with the sewage circulation pipeline, the other end of the flushing pipeline is provided with a threaded ball valve 13, and the flushing pipeline is provided with 2

vacuum pressure switches

14 and 1 vacuum pressure gauge 15; one end of the sewage circulating pipeline is connected to the sewage outlet 12 of the vacuum container 1, the other end of the sewage circulating pipeline is connected to the sewage inlet 22 of the treatment box body 2, the middle position of the sewage circulating pipeline comprises two branches (the branches are positioned at the rear side of the joint of the flushing pipeline and the sewage circulating pipeline, one branch is used for standby), each branch is provided with a vacuum pump 16 and a buffer tank 17, and two sides of the vacuum pump 16 are provided with flange ball valves 18; the vacuum pressure switch 14, the vacuum pump 16 and the buffer tank 17 are connected to an electric control box 21, and the electric control box 21 comprises a low vacuum pressure alarm switch.

The vacuum pressure switch 14 and the electric cabinet 21 are used for controlling the vacuum pump 16 to start and stop, the vacuum pressure of a sewage circulation pipeline is maintained between-0.3 bar and-0.6 bar, two vacuum pumps 16 are arranged and are used for one, the safety and the reliability of the device are ensured, the frequent starting and stopping of the vacuum pump 16 in a ship medical sewage vacuum collection system can be effectively reduced through the arrangement of the vacuum container 1, and the vacuum storage is provided for the device of the embodiment. The buffer tank 17 is used for vacuum buffering of a service pump and a standby pump pipeline so as to provide stable vacuum; in addition, in this embodiment, the flushing pipeline is set to have an upward inclination angle of about 5 ° from the connection position of the flushing pipeline and the sewage flow pipeline to the threaded ball valve 13, and when the flushing pipeline is applied, the threaded ball valve 13 is opened to connect with a water supply pipe, which is convenient for cleaning.

In this embodiment, the disinfection and sterilization mode for medical sewage includes a primary disinfection and sterilization device 4, a residual chlorine neutralization device 5 and a secondary disinfection and sterilization device 6, and the specific implementation mode is disclosed as follows:

the primary sterilization and disinfection device 4 comprises a first dosing tank 41 and a dosing metering pump 42, wherein the first dosing tank 41 is connected to the sewage inlet 22 of the treatment box body 2 through a pipeline, and the dosing metering pump 42 is arranged in a pipeline connecting the first dosing tank 41 and the treatment box body 2; the liquid medicine in the first medicine adding box 41 is sodium hypochlorite liquid medicine with the concentration of 10%.

The residual chlorine neutralizing device 5 comprises a second dosing tank 51 and a neutralization metering pump 52, wherein the second dosing tank 51 is connected to a water discharge pipe through a pipeline, and the neutralization metering pump 52 is arranged in a pipeline connecting the second dosing tank 51 with the water discharge pipe; the chemical liquid in the second dosing tank 51 is a sodium bisulfite chemical liquid with a concentration of 10%.

The secondary sterilization and disinfection device 6 comprises an ultraviolet sterilization and disinfection device 61, a ball valve is arranged on a drain pipe on the front side of the ultraviolet sterilization and disinfection device 61, and the ultraviolet sterilization and disinfection device 61 comprises a discharge port 62 for discharging.

In addition, it should be noted that the liquid level switches 10 are arranged inside the treatment tank body 2, the liquid level switches 10 are connected to the electric control box 21, the electric control box 21 comprises a liquid level alarm, and at least three liquid level switches 10 are arranged and are respectively arranged at the upper part, the middle part and the lower part of the inner side of the treatment tank body 2; in the process of treating medical sewage by the box body 2, the liquid level switches 10 on the middle part and the lower part control the start and stop of the transfer pump 81 in the medical sewage transfer unit 8 through the control system of the electric cabinet 21, the disinfected medical sewage is discharged into a marine domestic sewage treatment device for treatment or is directly discharged to the outboard or into a bank barge, and the liquid level switch on the upper part is used for activating high liquid level alarm to prompt a worker to treat the sewage.

In this embodiment, after medical sewage enters the treatment tank 2, a primary chlorination sterilization disinfection is performed by the primary sterilization disinfection device 4 (sodium hypochlorite liquid with a concentration of 10% is quantitatively added into the treatment tank 2 for chlorination chemical disinfection), the medical sewage in the treatment tank 2 is fully reacted with the liquid medicine by the aeration system 3 and the pneumatic stirring of compressed air, so as to realize sterilization disinfection, the medical sewage after the primary sterilization disinfection passes through the arranged liquid level switch 10 and the sewage transfer unit 8, and the start and stop of the transfer pump 81 are realized by the control system of the electric cabinet 21, so that the transfer conveying of the medical sewage is realized; the return pipe system returns the medical sewage output from the drain pipe to the treatment tank body 2 on one hand, so that the sewage in the treatment tank body 2 is stirred, and no air source in the treatment tank body 2 is met to realize hydraulic stirring, and on the other hand, the water quantity of the medical sewage in the treatment tank body 2 is adjusted by adjusting the opening of the return pipe ball valve 91, and the change of the water quantity in the drain pipe which is transferred and output is met, so that the effect of adjusting the output flow of the medical sewage is achieved; in the process of transferring, conveying and discharging the medical sewage, through a residual chlorine neutralizing device 5 arranged on a drain pipe, sodium bisulfite liquor with the concentration of 10% is quantitatively injected into the drain pipe, residual chlorine in the medical sewage is conveyed through the sodium bisulfite neutralizing drain pipe so as to reduce secondary pollution, the medical sewage which is transferred and conveyed for primary chlorination and neutralization is further subjected to secondary ultraviolet sterilization and disinfection through a secondary sterilization and disinfection device 6, bacteria and viruses in the medical sewage are thoroughly killed, the discharge standard is reached, and the effect of thorough sterilization and disinfection is reached, the medical sewage treated by the embodiment is discharged through a discharge port 62 of an ultraviolet sterilization and disinfection device 61; when the ship operates, the ship can be directly discharged to the outside in a non-limited discharge area; in the limited discharge area, the sewage is discharged to a marine domestic sewage treatment device for further treatment and discharge after reaching the standard; when in berthing, the medical sewage revetment is treated by an onshore sewage treatment facility.

Compared with the prior art, the embodiment in the market adopts gravity collection, and the sewage is directly discharged into a marine domestic sewage treatment device or directly discharged outboard or revetment without disinfection pretreatment, and the advantages are specifically analyzed as follows:

(1) Compared with the vacuum collection of the embodiment, the gravity medical sewage collection needs a pipeline collection system with a larger pipe diameter, for example, a vacuum pipeline collection system of general DN65 needs a DN150 pipe diameter collection system when adopting gravity collection; the embodiment has better economic effect.

(2) Compare the vacuum collection of this embodiment, gravity medical sewage collection system when the pipeline is arranged, because medical sewage only relies on gravity to carry downwards, house steward need set up 1 in the pipeline is arranged: 66.7-1:50 pipeline inclination, branch needs to be set 1:100 to 1:66.7, ensuring normal sewage downstream transportation; the sewage pipeline arrangement of the vacuum collection system under the action of vacuum suction negative pressure can break through the traditional arrangement of a sufficient downward inclination angle, so that the highest space utilization rate is obtained.

(3) Compared with the vacuum collection of the embodiment, the medical sewage gravity collection requires more flushing water, the hydraulic load during medical sewage treatment is larger, the flushing water volume of 70L per time during flushing is generally collected by gravity, and the flushing water volume of 12-25L per time during vacuum collection, so that the vacuum collection system saves more water, reduces sewage discharge, and has the technical effects of energy conservation and emission reduction.

(4) Compare in the vacuum collection of this embodiment, set up the disinfection preliminary treatment, and medical wastewater gravity does not set up the disinfection preliminary treatment after collecting, directly emits into marine domestic sewage treatment plant or direct row outboard or revetment, then on the boats and ships environment and personnel security have been less than on the boats and ships installed marine medical wastewater vacuum collection degassing unit.

In the embodiment, when disinfection pretreatment is set, no matter the disinfection device and a subsequent pipeline system are operated or maintained, related personnel on the ship have no infected potential safety hazard; the equipment or the pipe-line system among the medical wastewater collecting and discharging system also has no contaminated risk to the environment when maintaining or clearing up, and from the ship environmental protection perspective, the security of this embodiment is higher.

The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a degassing unit is collected in marine medical sewage vacuum which characterized in that: comprises a vacuum collection unit, a biochemical treatment unit and a sterilization and disinfection unit;

the vacuum collection unit comprises a vacuum container for receiving medical sewage and a vacuum pump station, and one end of the vacuum pump station is connected with the vacuum container; the biochemical treatment unit comprises a treatment box body, a drainage pipe system and an aeration system arranged in the treatment box body, the other end of the vacuum pump station is connected with the treatment box body, and the treatment box body is connected with one end of the drainage pipe system; the sterilization and disinfection unit comprises a primary sterilization and disinfection device, a residual chlorine neutralization device and a secondary sterilization and disinfection device, wherein the primary sterilization and disinfection device is connected to the treatment box body, the residual chlorine neutralization device is connected to the drainage pipe system, and the secondary sterilization and disinfection device is connected with the other end of the drainage pipe system;

the processing box body comprises an electric cabinet for controlling the vacuum collection unit, the biochemical processing unit and the sterilization and disinfection unit.

2. The vacuum collection and disinfection device for medical sewage of a ship of claim 1, which is characterized in that: the vacuum pump station comprises a flushing pipeline and a sewage circulating pipeline, one end of the flushing pipeline is communicated with the sewage circulating pipeline, a threaded ball valve is arranged at the other end of the flushing pipeline, one end of the sewage circulating pipeline is connected with a vacuum container, and the other end of the sewage circulating pipeline is connected with the treatment box body.

3. The vacuum collection and disinfection device for medical sewage of a ship according to claim 2, characterized in that: the flushing pipeline is provided with a vacuum pressure switch and a vacuum pressure gauge, the sewage circulation pipeline is provided with a vacuum pump and a buffer tank, and flange ball valves are arranged on two sides of the vacuum pump; the vacuum pressure switch, the vacuum pump and the buffer tank are connected to an electric cabinet, and the electric cabinet comprises a low vacuum pressure alarm switch.

4. The vacuum collection and disinfection device for medical sewage of a ship of claim 1, which is characterized in that: the primary sterilization and disinfection device comprises a first dosing tank and a dosing metering pump, wherein the first dosing tank is connected to the treatment tank body through a pipeline, and the dosing metering pump is arranged in the pipeline connecting the first dosing tank and the treatment tank body.

5. The vacuum collection and disinfection device for medical sewage of a ship of claim 1, which is characterized in that: the water draining system comprises a water draining pipe, a sewage transferring unit and a water returning pipe system, wherein the sewage transferring unit and the water returning pipe system are arranged on the water draining pipe, the sewage transferring unit is located on the front side of the water returning pipe system, and the residual chlorine neutralizing device is arranged on the rear side of the water returning pipe system.

6. The vacuum collection and disinfection device for medical sewage of a ship of claim 5, wherein: the sewage transfer unit comprises a ball valve and a transfer pump which are arranged in sequence, and the transfer pump is connected to the electric cabinet; the water return pipe system comprises a water return pipe and a water return pipe ball valve connected to the water return pipe, one end of the water return pipe is connected to a drain pipe, and the other end of the water return pipe is connected to the processing box body.

7. The vacuum collection and disinfection device for medical sewage of a ship of claim 5, wherein: the residual chlorine neutralizing device comprises a second dosing tank and a neutralizing metering pump, the second dosing tank is connected to the drain pipe through a pipeline, and the neutralizing metering pump is arranged in the pipeline connecting the second dosing tank and the drain pipe.

8. The vacuum collection and disinfection device for medical sewage of a ship according to claim 1, wherein: the secondary sterilization and disinfection device comprises an ultraviolet sterilization and disinfection device, a ball valve is arranged on a drain pipe on the front side of the ultraviolet sterilization and disinfection device, and the ultraviolet sterilization and disinfection device comprises a discharge port for discharging.

9. The vacuum collection and disinfection device for the medical sewage of the ship according to any one of the claims 1 to 8, characterized in that: and a liquid level switch is arranged in the treatment box body and connected to the electric cabinet.

10. The vacuum collection and disinfection device for medical sewage of a ship of claim 9, wherein: the liquid level switches are at least three and are respectively arranged at the upper part, the middle part and the lower part of the inner side of the treatment box body.