CN108772387B

CN108772387B - A multi-stage voltage-changing pulse cleaning device

Info

Publication number: CN108772387B
Application number: CN201810612352.0A
Authority: CN
Inventors: 周治任; 张流波; 王安德; 曹小军
Original assignee: Shenzhen Marge Technology Co ltd
Current assignee: Shenzhen Marge Technology Co ltd
Priority date: 2018-01-15
Filing date: 2018-06-14
Publication date: 2025-01-10
Anticipated expiration: 2038-06-14
Also published as: CN108772387A

Abstract

The present application provides a multi-stage variable pressure pulse cleaning device, including a vacuum tank, the vacuum tank is sealed with a vacuum tank cover, a pressure sensor is installed on the upper part of the cabin of the vacuum tank, a temperature heater and a temperature sensor are installed on the inner bottom of the vacuum tank, an ultrasonic transducer is installed on the outer bottom of the vacuum tank, the vacuum tank is connected to the vacuum pump exhaust port through a pipeline, a vacuum valve is arranged on the pipeline, a vacuum tank is installed between the vacuum tank and the vacuum pump, a tank rupture valve is installed on the top of the vacuum tank, a tank drain valve is installed on the bottom of the vacuum tank, a tank extraction valve is arranged on the connecting pipeline between the vacuum tank and the vacuum pump, the pipeline between the vacuum tank and the vacuum tank is connected to the left vacuum tank body and the right vacuum tank body respectively, a left pulse valve and a right pulse valve are arranged on the pipeline between the vacuum tank and the vacuum tank respectively, and the components are all controlled by an integrated control system. The present invention saves labor, is easy to operate, and has a good cleaning effect.

Description

Multistage voltage transformation pulse cleaning device

Technical Field

The invention mainly relates to the field of cleaning of medical instruments, in particular to a multistage variable-pressure pulse cleaning device.

Background

Under the current situation, hospitals mainly adopt manual cleaning or a spraying machine to clean the hard endoscope, because the bore diameter of the lumen of some hard endoscopes is small, great difficulty is brought to cleaning, and especially when the spraying machine is adopted to clean, the perfusion tube inside is completely not filled, so that the condition that the cleaning is not clean and the cleaning is returned is frequently detected in the cleaning and disinfecting process, and when the cleaning is completely carried out manually, the labor intensity of medical staff is great, and infection events are easy to occur, because most of operations made by the hard endoscope are easy to infect, and are greatly influenced by human factors, so that the cleaning quality is difficult to stabilize.

At present, hospitals mainly carry out manual scrubbing on hard endoscopes, but the bore diameter of the lumen of some hard endoscopes is particularly small, so that great trouble is brought to cleaning staff, the cleaning quality is difficult to ensure, the subsequent operators are infected at risk if the cleaning is not thorough, the surgical operation carried out on the hard endoscopes is generally high in risk and easy to infect, so that the problem of cleaning the endoscopes is always plagued by various hospitals, and the multi-stage pulse cleaning technology has good cleaning effect on the cleaning of the hard endoscopes and conventional instruments and can effectively solve the problem.

Disclosure of Invention

The application mainly generates a vacuum cleaner or backwash for the inner part of the lumen type instrument by matching the structures, and simultaneously cleans the surfaces of various instruments by a variable-pressure pulse mode, thereby completing the efficient cleaning of various instruments.

The utility model provides a multistage vary voltage pulse belt cleaning device, mainly includes the vacuum tank seals has the vacuum tank lid, pressure sensor and broken valve of gas are installed on the cell body upper portion of vacuum tank, temperature heater and temperature sensor are installed to the inboard bottom of vacuum tank, installs ultrasonic transducer in the outside bottom of vacuum tank, the vacuum tank is through the air inlet of pipe connection vacuum pump, be equipped with the evacuation valve on the pipeline one, install the vacuum tank between vacuum tank and the vacuum pump, broken tank valve is installed at the vacuum tank top, the tank drain valve is installed to the bottom of vacuum tank, be equipped with the pump valve on the connecting line second of vacuum tank and vacuum pump, pipeline three between vacuum tank and the vacuum tank is connected respectively and is got into left side vacuum tank and right side vacuum tank, be equipped with left pulse valve and right pulse valve on the pipeline four between vacuum tank respectively, pressure sensor, gas broken valve, temperature heater, temperature sensor, ultrasonic transducer, drain valve, evacuation valve, pump, drain valve all are by integrated control system.

Preferably, the third pipeline between the vacuum tank and the vacuum tank is respectively connected with n inlet ports when entering the left vacuum tank body and/or the right vacuum tank body, and n is greater than or equal to 1.

Preferably, a third pipeline between the vacuum tank and the vacuum tank is connected with the left vacuum tank body and/or the right vacuum tank body respectively, and a vacuum suction device is arranged at the inlet of the vacuum tank body, and can refer to a vacuum suction clamping device, a shunt box and a cleaning device applied on the same day.

Preferably, a jet device is installed below the temperature heater, the jet device comprises jet holes, jet pipes, jet pipe drain holes and jet pipe inlets, the jet pipes are arranged in a 'out' shape, the jet holes are arranged on the jet pipes, and the jet pipes penetrate through the tank body and are connected with submerged drying valves downwards.

Preferably, the jet holes are round holes, the included angle is 90 degrees, and the distance interval is 30-50 mm.

Preferably, a jet pipe drain hole is formed in the middle of the bottom of the included angle of the jet pipe bottom, and the jet pipe drain hole is round, square, triangular or irregular. The jet pipe drain hole can discharge cleaning liquid in the jet pipe, so that residue and secondary pollution are avoided.

Preferably, the included angle of the jet holes is 90 degrees, and the jet holes are upward.

Preferably, the left pulse interface or the right pulse interface of the vacuum tank extends to the bottom of the vacuum tank respectively.

Preferably, the vacuum pump is connected with a cooling tank, the top of the cooling tank is connected with a vacuum pump exhaust port through a pipeline five, the bottom of the cooling tank is connected with a vacuum pump water inlet, the upper part of the cooling tank is connected with a cavitation port of the vacuum pump, the cooling tank is externally connected with a water source, and a water outlet and an exhaust port are arranged on the cooling tank.

Preferably, the heating device consists of a heater and connecting wires thereof, wherein the heater is an M-shaped heating pipe which is uniformly distributed at the bottom of the vacuum tank, so that the cleaning liquid in the vacuum tank can be uniformly heated.

Preferably, the vacuum tank is a sealed cabin body, and the vacuum tank can bear negative pressure above-98 KPa and does not deform when the vacuum tank is vacuumized.

Preferably, the pressure sensor is arranged outside the vacuum tank, the pressure sensor is connected with the vacuum tank through a pipeline, and a connecting port of the pipeline is above the water level. The pipeline is arranged above the liquid level.

Preferably, the pressure sensor detects the vacuum degree in the vacuum tank by the pressure sensor, so that the control system controls the pressure sensor to implement the data change step.

Preferably, the drainage device consists of a drainage valve, a drainage isolation valve and a connecting pipeline thereof, wherein the water inlet end of the drainage valve is connected with a liquid outlet at the bottom of the vacuum tank, and the water outlet end of the drainage valve is connected with the water outlet through the drainage isolation valve.

Preferably, the ultrasonic transducer is arranged at the bottom of the vacuum tank, the hole digging at the bottom of the vacuum tank keeps the position of the vacuum tank where the transducer is arranged at 1.5-3 mm thick, the best ultrasonic effect is reflected, and under the condition that the vacuumizing negative pressure is kept between-40 Kpa and 60Kpa, the air dissolved in the liquid in the vacuum tank is pumped away, the cavitation is concentrated on the inner wall of the object to be cleaned for cleaning, and the acting force is strong.

Preferably, the water level detection system is composed of a plurality of liquid level detection switches and connecting pipelines. The liquid level detection switch is respectively a high liquid level detection switch and a low liquid level detection switch, and a detection port is arranged on the cleaning tank.

Preferably, the vacuum suction device comprises a vacuum suction movable clamping device and a vacuum suction shunt box, the vacuum suction movable clamping device comprises a guide plate, a sleeve plate and a fixed plate, the guide plate and the sleeve plate are semicircular, the guide plate is connected with the sleeve plate, the sleeve plate is connected with the fixed plate, the sleeve plate is clamped between the guide plate and the fixed plate, the cambered surface of the guide plate is higher than the cambered surface of the sleeve plate, an opening is formed in the fixed plate, and the height of the opening is higher than the cambered surface of the sleeve plate.

Preferably, the openings at the two ends of the semicircular guide plate are designed to be of a slope structure or a guide inclined plate.

Preferably, a telescopic tubular connector is installed in an opening on the fixing plate, a spring is installed in the fixing plate, one side of the spring is sleeved in the tubular connector, the outside of the tubular connector is sleeved in a circular ring, the circular ring is connected with the opening on the fixing plate in a threaded manner, when the movable connector is placed in the sleeve plate, the tubular connector is pressed to retract into the opening, and when the movable connector is taken out, the tubular connector slightly pops out of the opening under the action of elastic force. The movable joint of the vacuum suction shunt box moves up and down, and the elastic force of the spring inside the fixed side of the fixed plate promotes the tubular connector to stretch and retract, so that the positioning and the taking out are convenient.

The vacuum suction shunt box comprises a box body and a movable joint, wherein the movable joint is of a tubular structure, the head side of the movable joint is provided with a chamfer bulge loop structure, and the bulge loop structure of the movable joint is subjected to chamfer design, so that the operation performance and the sealing effect can be improved. One side of the movable joint is just placed into the sleeve plate through the guide plate to be in sealing connection with the opening of the fixed plate, wherein the connection means that gas or liquid can flow through the fixed plate through the movable joint. A filter screen device is arranged in the movable joint to prevent the instrument fittings and other sundries from being sucked.

Preferably, at least one input port is formed on one side of the box body, and the other side of the movable joint is connected with the input port of the box body. The box body is characterized in that the other side of the box body is also provided with at least one output port, the output port is provided with a silica gel joint, the silica gel joint is divided into an inner layer and an outer layer, the middle part of the inner part is a large round hole, the middle part of the outer layer is a small hole, a groove between the inner layer and the outer layer just clamps the box body of the output port, and the silica gel joint is made of flexible elasticity. The side surface of the vacuum suction shunt box is fully distributed with 1-40 output ports for shunt, each output port can be provided with a silica gel joint, and the tubular instrument is directly inserted into a central round hole of the silica gel joint, so that a plurality of tubular instruments can be conveniently and shunted and sucked for cleaning. The bottom of the vacuum suction diversion box is connected with the movable joint so as to facilitate the flow direction of liquid, thoroughly drain the liquid and avoid dead angles. The side or the side of the vacuum suction shunt box is stuck with a silica gel plate, the front surface of the silica gel plate is provided with a plurality of small holes or fork openings, the fork openings of the small holes range from 3mm to 14mm, and the front surface or the side of other telescopic materials are provided with a plurality of small holes, and the fork openings, the round holes and other shapes are formed in the middle of the holes, so that the tubular instrument can be conveniently and directly inserted for cleaning.

Preferably, at least one bulge is designed in the large round hole of the inner layer of the silica gel joint, and the bulge is called a reinforcing rib and can play a role in fastening the tubular instrument.

Preferably, the outer inside design of silica gel joint has the steel ring, the steel ring external diameter is greater than the diameter of reposition of redundant personnel box delivery outlet, and the steel ring internal diameter is less than the diameter of reposition of redundant personnel box delivery outlet. The outer inside configuration steel ring of silica gel connects, and the steel ring external diameter is greater than the delivery outlet of reposition of redundant personnel box, and the steel ring internal diameter is less than the delivery outlet of reposition of redundant personnel box to strengthen steel ring interior round range intensity, its steel ring is bordured by silica gel, by silica gel round hole or fork mouth etc. is opened to the middle of the steel ring, when lumen apparatus direct insertion, the dynamics extrusion of silica gel hole is to the steel ring, because the external diameter of steel ring is greater than the diameter of reposition of redundant personnel box delivery outlet, so the silica gel connects difficult to drop inside the reposition of redundant personnel box.

Preferably, the round hole on the outer layer of the silica gel joint is a fork opening or a round hole or a square hole or an elliptical hole. The middle opening pore of the silica gel joint can be in various shapes, the middle opening fork is convenient to insert into an inner pipe with the diameter of 3-14 mm for cleaning and is universal, and the round hole is suitable for cleaning and using the apparatus with the diameter of 1-8 mm.

Preferably, the silica gel joint is connected with a traction hose, and the traction hose is directly inserted into the perfusion interface of the tubular instrument, so that the tubular instrument is inconvenient to directly insert when the length of the tubular instrument is too long or the perfusion opening is larger than the silica gel joint, and the traction hose is used for replacing connection.

Preferably, the vacuum suction device is fixed on the left and right inner walls of the vacuum tank, the vacuum suction device in the vacuum tank is composed of a movable clamping connector, a split box and a silica gel connector, a cleaned object is inserted into the silica gel connector, and vacuum suction cleaning liquid rapidly penetrates through the inner wall of the cleaned object to flow. The outside of the vacuum groove of the vacuum suction device is connected with the extraction opening of the vacuum tank through a pipeline and an isolating valve respectively, the vacuum tank extraction opening is connected with a tank extraction valve which is connected with a vacuum pump exhaust pipeline through a one-way valve. The one-way valve is beneficial to vacuum suction of a large amount of cleaning liquid into the vacuum tank for backflushing and prevents the large amount of cleaning liquid from entering.

The cleaning method of the multistage variable-pressure pulse cleaning device mainly comprises the following steps:

step one, replenishing liquid, namely placing the cleaned object into a vacuum tank, closing a vacuum tank cover, and replenishing cleaning liquid;

Heating, namely starting a heater to heat to 45-55 ℃ after the cleaning liquid reaches a set liquid level;

and step three, vacuum pulse tank pumping, which is to open a tank pumping valve, pump the vacuum pump, open an air breaking valve firstly when high negative pressure is formed in the vacuum tank, then open a pulse valve, and fill cleaning liquid into the vacuum tank instantly to form forward pulse flushing, wherein the pulse valve comprises a left pulse valve and a right pulse valve.

Preferably, the three-step vacuum pulse tank is pumped, namely a tank pumping valve is opened to start a vacuum pump to pump the vacuum pump, when high negative pressure is formed in the vacuum tank, an air breaking valve is opened first, then a left pulse valve is opened, and cleaning liquid is filled into the vacuum tank instantly to form left positive pulses.

Preferably, the three-step vacuum pulse tank is pumped, namely a tank pumping valve is opened to start a vacuum pump to pump the vacuum pump, when high negative pressure is formed in the vacuum tank, a gas breaking valve is opened first, then a right pulse valve is opened, and cleaning liquid is filled into the vacuum tank instantly to form right positive pulse.

Preferably, the four-step vacuum pulse back pumping is performed by closing a tank pumping valve, a gas breaking valve and a pulse valve, opening the vacuum pumping valve, opening the vacuum pump to pump high negative pressure in the vacuum tank, opening the tank breaking valve and the pulse valve, and instantly backflushing the cleaning liquid in the vacuum tank into the vacuum tank to form reverse pulse flushing, wherein the pulse valve comprises a left pulse valve and a right pulse valve.

Preferably, the four vacuum pulse back pumping steps are that a tank pumping valve, a gas breaking valve and a left pulse valve are closed, the vacuum pumping valve is opened to start a vacuum pump to pump, when high negative pressure is formed in the vacuum tank, the tank breaking valve and the left pulse valve are opened, and cleaning liquid in the vacuum tank is instantaneously backflushed into the vacuum tank to form left back pulse.

Preferably, the four vacuum pulse back pumping steps are that a tank pumping valve, a gas breaking valve and a right pulse valve are closed, the vacuum pumping valve is opened to start a vacuum pump to pump, when high negative pressure is formed in the vacuum tank, the tank breaking valve and the right pulse valve are opened, and cleaning liquid in the vacuum tank is instantaneously backflushed into the vacuum tank to form right back pulse.

Preferably, the method further comprises the step of pulse air blowing in the lumen of the working procedure, namely, opening a vacuumizing valve and a vacuum pump, pumping out gas in the vacuum tank, closing the vacuum pump and the vacuumizing valve after the set pressure value is reached, opening a tank breaking valve to enable the vacuum tank to be kept at normal pressure (0 KPa), then opening the pulse valve, wherein a large pressure difference exists between the vacuum tank and the vacuum tank, like the principle of a high-pressure water gun, at the moment of opening the pulse valve, air is quickly filled into the lumen instrument to squeeze out cleaning liquid in the lumen, the pulse valve is closed after being opened for 2 seconds, and the air breaking valve is immediately opened to enable the vacuum tank to return to normal pressure, and the extruded cleaning liquid in the lumen in the normal pressure state is quickly backfilled in the place occupied by the air. The same principle is repeated, and the left pulse valve is changed into the right pulse valve to alternately execute the left and right pulse air blowing steps in the lumen. And ending the pulse air blowing process in the whole lumen after the set times are reached.

Preferably, after the first and second steps are completed, the following steps of submerged variable-pressure pulse can be performed, namely, opening a vacuumizing valve, starting a vacuum pump, vacuumizing the vacuum tank, opening a submerged jet valve after the pressure in the vacuum tank reaches a set value, and instantly injecting liquid in the vacuum tank into the vacuum tank to form a strong scouring force and simultaneously driving cleaning liquid in the vacuum tank to carry out rapid and violent scouring and cleaning.

Preferably, the pressure value is-60 KPa to-200 KPa, which is divided into three pressure grades, -60KPa to-100 KPa,

-100KPa to-150 KPa, 150KPa to-200 KPa, and the interval time of different pressure levels is 1 second to 30 seconds. The device is characterized in that the device is repeatedly cleaned at three different pressure levels and different time intervals, namely submerged variable-pressure pulse cleaning is formed.

Preferably, after the first and second steps are completed, the pressure-variable pulse on the liquid in the first step is performed by opening a vacuum-pumping valve, starting a vacuum pump to vacuumize the vacuum tank, opening a gas-breaking valve after the pressure in the vacuum tank reaches a set value, and enabling gas to instantaneously enter the vacuum tank to form a strong scouring force and simultaneously driving the cleaning liquid in the vacuum tank to carry out rapid and violent scouring and cleaning.

-100KPa to-150 KPa, 150KPa to-200 KPa, and the interval time of different pressure levels is 1 second to 30 seconds. The device is characterized in that the device is repeatedly cleaned at three different pressure levels and different time intervals, namely the device is subjected to variable-pressure pulse cleaning on liquid.

Preferably, each procedure of the cleaning method of the multistage variable-pressure pulse cleaning device can be combined and used arbitrarily according to actual needs, and the effect is more ideal.

Preferably, a vacuum valve is connected between the vacuum tank and the vacuum pump, and the vacuum pump directly and independently pumps the atmospheric pressure of the vacuum tank.

Preferably, the vacuum pump is connected with the vacuum tank and the vacuum tank through the one-way valve and the isolation valve, and the isolation valve is arranged between the vacuum tank and the vacuum tank. And after the vacuum pump pumps the vacuum tank to negative pressure, opening an isolation valve between the vacuum tank and the vacuum tank, and sucking the cleaning liquid in the vacuum tank into the vacuum tank by suction pulse. The vacuum pump is directly and independently used for pumping the atmospheric pressure of the vacuum tank, the vacuum pump is respectively connected with the vacuum tank and the vacuum tank through a one-way valve and a tee joint, an isolation valve is arranged between the vacuum pump and the vacuum tank, and an isolation valve is arranged between the vacuum pump and the vacuum tank. After the suction pulse valve is opened, the cleaning liquid in the vacuum tank is backflushed into the vacuum tank.

Preferably, the vacuum tank is respectively connected with the vacuum tank and the two ends of the vacuum pump, the isolation valve and the drainage device are arranged at the two ends of the vacuum tank, a large amount or a small amount of cleaning liquid is remained at the bottom of the vacuum tank after the liquid enters the vacuum tank, the vacuum tank air breaking valve is opened, the filter is arranged at the air inlet of the vacuum tank air breaking valve, the pollution of the outside air is prevented, the outside pressure and the internal pressure of the vacuum tank are restored to normal pressure, and the liquid at the bottom of the accumulated vacuum tank is discharged by the drainage isolation valve.

Preferably, the top of the vacuum pump cooling device is respectively provided with an exhaust port and a vacuum pump exhaust port, the exhaust port is connected with an external exhaust pipeline, and the vacuum pump is discharged to pump a large amount of gas.

Preferably, the cooling water inlet electromagnetic valve, the vacuum pump, the air breaking valve, the drain valve, the liquid level detection device, the left pulse valve, the right pulse valve, the vacuumizing valve, the water supplementing valve, the pot pumping valve, the air breaking valve, the pressure sensor, the liquid breaking valve, the printer, the data transmission device and the button switch are connected to the control system through circuits, the control system transmits a data picture to the touch screen, the touch screen displays related data operation and data storage, and the touch screen sends the data to the data printer for printing after the working procedure is finished.

The invention can realize the following functions:

The cooling water is recycled, the air in a vacuum tank or a vacuum tank is pumped by a vacuum pump to be in a negative pressure state, water is injected into the cooling tank, a cooling water source in the operation process of the vacuum pump is stored, a cooling water supplementing valve supplements water for the cooling tank, when the water in the cooling tank is small, the cooling water supplementing valve can be used for injecting the cooling water into the cooling tank, when the water in the cooling tank is large, the cooling water supplementing valve stops supplementing water, and the cooling water in the cooling tank can be sucked into a cooling pipeline of the vacuum pump in the starting process of the vacuum pump and is discharged through an outlet of the cooling pipeline of the vacuum pump. By continuously providing a cooling water source, the working temperature of the vacuum pump is kept at a lower level, and the condition that the performance of the vacuum pump is not affected by long-term operation of the vacuum pump is met. The cooling tank can be internally provided with a temperature detection device and a drain valve, cooling water passing through the vacuum pump can flow back to the cooling tank and is discharged through the cooling tank after exceeding the set temperature, and partial cooling water sources can be saved in the mode, so that the effect of saving is achieved.

The vacuum tank is connected with the vacuum tank and the external atmosphere, mainly used for breaking the vacuum tank to keep the vacuum tank in a normal pressure state, a tank drain valve is positioned at the bottom of the vacuum tank and is connected with a drain pipeline to drain the cleaning liquid out of the vacuum tank, a left pulse valve is connected with the vacuum tank and the left side of the vacuum tank, liquid in a lumen instrument connected with a left interface is flushed back and forth between two cavities under the action of pressure difference, a right pulse valve is connected with the vacuum tank and the right side of the vacuum tank, liquid in the lumen instrument connected with the left interface is flushed back and forth between the two cavities under the action of pressure difference, and the vacuum tank are communicated through the valve to realize the flow pulse of the cleaning liquid between the two cavities through the pressure difference between the two cavities.

The principle that liquid flows from a high pressure position to a low pressure position is that an air breaking valve is opened to enable a vacuum tank to be kept in a normal pressure (about 0 KPa) state, when a certain vacuum negative pressure (-about 90 KPa) is reached through vacuumizing the vacuum tank, a left pulse valve or a right pulse valve is opened, and normal pressure cleaning liquid in the vacuum tank connected with the outer side of the left pulse valve or the right pulse valve is rapidly and pulsed into the vacuum tank through an opposite interface. The pressure difference is large, so that the flow speed is high, the scouring force is strong, and the device is similar to the principle of a high-pressure water gun and can be used as an efficient cleaning mode for lumen objects. After the vacuum tank is filled with cleaning liquid, the cleaning liquid can be discharged out of the vacuum tank by opening the tank breaking valve and the tank draining valve. The reason for opening the tank breaking valve during drainage is to prevent negative pressure from forming in the tank, so that liquid outside the vacuum tank flows back into the vacuum tank. After the cleaning liquid in the vacuum tank is discharged cleanly, the above actions can be repeated, and the multiple times of high-pressure pulse pumping and washing of the tubular objects are realized.

The vacuum tank backwash function is realized, the tank breaking valve is opened to enable the vacuum tank to be kept in a normal pressure (0 KPa) state, the vacuum tank is vacuumized, the vacuum tank is changed into negative pressure (-90 KPa), the normal pressure (0 KPa) of the vacuum tank is achieved, the cleaning liquid is quickly refluxed into the vacuum tank by opening the left pulse valve or the right pulse valve, the reflux speed is high because the pressure difference is large, a powerful scouring effect is generated, dirt adhered to the inside of a pipe cavity is taken away when the cleaning liquid passes through the inside of the pipe cavity in the process of refluxing, and the cleaning method is an efficient cleaning mode for the inside of the pipe cavity.

A method for saving cleaning liquid features that after each pulse flushing procedure is finished, the flushing liquid is returned to vacuum tank for alternative execution to effectively complete the flushing and back flushing of multi-stage pulse tank.

According to the principle that the boiling point of water is reduced along with the reduction of vacuum degree, after the vacuum tank is vacuumized, the cleaning liquid reaches the boiling point to generate a plurality of bubbles, then air is filled into the bottom of the liquid level to enable the cleaning liquid to recover to a normal pressure state, because old bubbles in the cleaning liquid are broken due to recovery to normal pressure, meanwhile, new bubbles are generated by newly filling air, the process is very short, a certain shock wave is generated around the cleaning liquid at the position where the bubbles are generated and broken, the shock wave is the basic theoretical basis of liquid phase pulse cleaning, meanwhile, a cleaning effect testing device is placed into the cleaning liquid to conduct continuous impact cleaning and intermittent variable pressure flushing, the effect of intermittent variable pressure flushing is found to be better than that of continuous direct flushing, meanwhile, the cleaning liquid is heated to generate more bubbles in the bottom in the vacuumizing process, the cleaning force is more obvious, the forming of the multistage variable pressure liquid phase pulse cleaning is achieved, about the mechanism that the bubbles are generated around the cleaning liquid in the vacuum ultrasonic cleaning machine, the cleaning liquid is broken along with the high pressure, the bubble is broken down in the vacuum pipe is filled, and the bubble is broken down in the vacuum pipe is broken, and the bubble is broken down in the space is instantaneously and the air bubble is broken down. Good cleaning effect can be achieved by repeating the vacuumizing and air breaking processes of different grades for a plurality of times.

The invention has the beneficial effects that:

The equipment can automatically complete the cleaning, disinfecting and drying processes of the hard endoscope and the instruments, 1-8 sets of hard endoscopes and accessories thereof can be cleaned at one time, an operator only needs to discharge the recovered hard endoscopes into a vacuum tank as required and start a corresponding cleaning program, the equipment can automatically complete the set whole treatment process, and after the cleaning is completed, the equipment alarms to prompt a nurse to use, so that cleaning staff is saved, the cleaning efficiency is improved, and the cleaning quality is effectively ensured.

The vacuum pulse tank pumping and tank back washing are alternately performed, so that the efficient cleaning of the inside of the lumen is realized, meanwhile, the multi-stage pressure-variable gas-phase cleaning and liquid-phase cleaning can also realize the cleaning of lumen instruments and non-lumen instruments, and the cleaning quality is improved. The vacuum pump circulation system can enable water and gas to circulate freely, and can rapidly meet the cleaning requirement, so that the whole cleaning quality is ensured. The cleaning method is simple and practical, can be used for alternately cleaning, can ensure the cleaning quality aiming at the objects which are difficult to clean, solves the problems in practice, improves the efficiency and saves the cost.

The invention has the advantages of pressure swing attraction pulse cleaning, energy saving, environmental protection and recycling. The vacuum tank can store gas and liquid for pressure maintaining. Closing the tank suction valve, opening the vacuum suction valve, pumping out the atmospheric pressure of the vacuum tank, opening the tank breaking valve, the left pulse valve and the right pulse valve, backflushing the cleaning liquid in the vacuum tank into the silica gel suction device, and flowing out of the silica gel suction device into the vacuum tank through the inner wall of the cleaned object to form left positive pulse and left negative pulse or right positive pulse and right negative pulse, flushing the cleaning liquid on the inner wall of the cleaned object along the negative pressure suction direction, alternately opening the left pulse valve and the right pulse valve, repeating for a plurality of times, changing different pressure set each time, and achieving ideal effect.

The multi-stage liquid pressure-changing pulse and the multi-stage liquid pressure-changing pulse are alternately performed, so that the cleaning of the cleaning object is realized, and the cleaning quality is improved. The jet hole arranged on the jet pipe can not only directly and forcefully wash the cleaning object, but also rapidly stir the cleaning liquid, so that the cleaning object can be cleaned more rapidly. The jet holes are upwards opened mainly for better scouring objects and stirring cleaning liquid, and 1-3 small holes are formed in the bottom of each jet pipe, so that water accumulated in the jet pipe can flow out. The water level detection system can detect high, medium and low liquid levels at the same time, can supplement liquid in time, and ensures the cleaning quality. The vacuum tank can enable water and gas to circulate freely, and can rapidly meet the cleaning requirement, thereby ensuring the whole cleaning quality. The cleaning device provided by the invention has the advantages of simple structure, practicability, time saving and personnel infection prevention.

The invention can be applied to the cleaning of hard endoscopes in the medical industry, the cleaning of conventional surgical instruments, and the cleaning of metal parts in the industrial field.

Drawings

FIG. 1 is a schematic diagram of a multi-stage variable-pressure pulse cleaning device according to the present application;

FIG. 2 is a schematic view of the structure of a vacuum tank of a multi-stage variable-pressure pulse cleaning device according to the present application;

FIG. 3 is a schematic diagram of a vacuum tank of a multi-stage variable-pressure pulse cleaning apparatus according to the present application

FIG. 4 is a schematic diagram of the jet pipeline of a multi-stage variable-pressure pulse cleaning device according to the present application;

fig. 5 is a process flow diagram of a cleaning method of a multi-stage variable-pressure pulse cleaning device according to the present application.

Reference numerals

1 Multistage variable pressure pulse device 2 vacuum tank 3 vacuum tank cover 4 to-be-cleaned object 5 pressure sensor 6 vacuum pumping valve 7 tank breaking valve 8 tank breaking valve 9 vacuum tank 901 first connecting port 902 second connecting port 903 third connecting port 904 fourth connecting port 905 fifth connecting port 10 one-way valve 11 high liquid level 12 left pulse valve 13 low liquid level 14 vacuum suction device 15 right pulse valve 16 water compensating valve 17 heater 18 temperature sensor 19 jet device 1901 jet hole 1902 jet pipe 1903 jet pipe drain hole 1904 jet pipe inlet 20 filter 21 liquid drying valve 22 printer 23 transmission device 24 touch screen 25 power switch 26 scram switch 27 drain valve 28 tank 28 drain valve 29 vacuum pump 30 cooling tank 31 cooling water compensating valve 32, ultrasonic transducer 33, pump tank valve 34, liquid lower jet valve

Description of the embodiments

The method of the present invention will be described below with reference to the accompanying drawings.

The multi-stage variable-pressure pulse cleaning device 1 shown in figures 1-4 comprises a vacuum tank 2, a cleaning liquid is injected into the vacuum tank and immersed in an object to be cleaned, and the device consists of a sealable cabin which can resist the vacuum negative pressure of-100 KPa and keep the deformation and damage; a vacuum tank cover 3 sealing the vacuum tank 2; the vacuum tank 2 is internally provided with a cleaned object 4 which can be a lumen instrument or a non-lumen instrument; the upper part of the vacuum tank 2 is provided with a pressure sensor 5 which can detect the pressure value in the vacuum tank 2 in real time, when the vacuumizing valve 6 and the vacuum pump 29 are simultaneously opened, the sealed vacuum tank 2 can be vacuumized, the internal air is discharged to form negative pressure, the tank air breaking valve 7 is used for communicating the vacuum tank 9 with the external air to keep the vacuum tank 9 in a normal pressure state, the air breaking valve 8 is positioned at the upper part of the vacuum tank 2 and connected with the air to boost or keep the vacuum tank 2 at normal pressure, the vacuum tank 9 and the vacuum tank 2 are communicated through a valve to realize the flow pulse of the cleaning liquid between the two tanks through the pressure difference between the two cavities, the check valve 10 is used for preventing the liquid in the vacuum tank 2 from flowing back to the vacuum pump 29, the high liquid level 11 is used for limiting the liquid height of the vacuum tank 2, the injection of the cleaning liquid is stopped when the high liquid level 11 is reached, the left pulse valve 12 is used for connecting the vacuum tank 9 and the vacuum tank 2, the cleaning liquid in the pipe cavity objects in the cleaning liquid is quickly flowed from the vacuum tank 2 through a special interface or is kept at normal pressure, the vacuum tank 9 is quickly flowed back to the vacuum tank 14 through the pressure difference between the vacuum tank 9, the high liquid level 13 can be quickly heated, the vacuum level in the vacuum tank is quickly heated, the vacuum tank is quickly sucked in the vacuum tank is heated, the vacuum tank is in the vacuum tank, the vacuum tank is in the vacuum tank is in the vacuum tank, the vacuum tank is in the vacuum tank vacuum, the opposite-connection cavity device and the left pulse valve 12 or the right pulse valve 15 are the same as the left pulse valve 12 in function, the difference is that the opposite-connection cavity device and the left pulse valve 15 are positioned on the left side of the vacuum tank 2 and the right pulse valve 12 is positioned on the right side of the vacuum tank 2, and the water supplementing valve 16 is used for supplementing cleaning liquid to the vacuum tank 2. The cleaning liquid can be pure water, tap water or softened water, or various special cleaning agents can be added, and the heater 17 has the function of heating the cleaning liquid in the vacuum tank 2 or keeping the constant temperature. The device comprises an M-shaped electric heating pipe arranged at the bottom of a vacuum tank 2, wherein the M-shaped electric heating pipe is also a steam heating pipe or a heating device with other shapes, the temperature sensor 18 is used for detecting the real-time temperature of the vacuum tank 2, the jet device 19 is used for filling liquid into the bottom of a cleaning liquid through each jet hole, the jet device 19 and the vacuum tank 9 are connected through a pipeline, a submerged jet valve 34 is arranged on the pipeline, a filter 20 filters gas filled into the vacuum tank 2, a submerged drying valve 21 is connected with the jet device 19 and external air, a drain valve 27 is arranged at the bottom of the vacuum tank 2 and used for draining liquid in the vacuum tank 2 when being opened, the tank drain valve 28 is used for draining liquid in the vacuum tank 9, the tank drain valve 7 is required to be opened when being drained, the vacuum tank or the air in the vacuum tank 12 is pumped out by the vacuum pump 29, the cooling tank 30 is used for providing a cooling water source for the vacuum pump, and the transducer 32 is used for cooling the water supplementing valve 31.

The utility model provides a multistage vary voltage pulse belt cleaning device 1, mainly includes vacuum tank 2, the washing is inside holds by the washings 4, and vacuum tank 2 seals has vacuum tank lid 3, pressure sensor 5 and broken valve 8 of gas are installed on the cell body upper portion of vacuum tank 2, and temperature heater 17 and temperature sensor 18 are installed to the inboard bottom of vacuum tank 2, installs ultrasonic transducer 32 in the outside bottom of vacuum tank 2, vacuum tank 2 is connected vacuum pump 29 suction opening through the pipeline, be equipped with evacuation valve 6 on the pipeline one, install vacuum tank 9 between vacuum tank 2 and the vacuum pump 29, vacuum tank 9 structure part has a plurality of interfaces (first connector 901, second connector 902, third connector 903, fourth connector 904, fifth connector 905), and vacuum tank 9 first connector 901 is connected to vacuum tank 29 suction opening through check valve 10, and vacuum tank valve 33 connects vacuum pump 29 through check valve 10, and vacuum tank 9 second connector 902 and broken valve pipeline entry installation filter 20, vacuum tank 9's third connector 903 and left pulse valve 12 are connected to vacuum tank 9, and fourth connector 904 and fifth connector 905 are connected to vacuum tank 9, and valve 15 is connected to drain valve 28. The tank breaking valve 7 is installed at the top of the vacuum tank 9, the tank draining valve 28 is installed at the bottom of the vacuum tank 9, the tank pumping valve 33 is arranged on a second connecting pipeline of the vacuum tank 9 and the vacuum pump 29, a third pipeline between the vacuum tank 9 and the vacuum tank 2 is connected into a left side vacuum tank body and a right side vacuum tank body respectively, the left pulse valve 12 and the right pulse valve 15 are arranged on a fourth pipeline between the vacuum tank 9 and the vacuum tank 2 respectively, and the pressure sensor 5, the temperature heater 17, the temperature sensor 18, the ultrasonic transducer 32, the draining valve 27, the vacuum pumping valve 6, the tank breaking valve 7, the tank draining valve 28, the tank pumping valve 33, the left pulse valve 12 and the right pulse valve 15 are controlled by an integrated control system.

The three pipelines between the vacuum tank 9 and the vacuum tank 2 are respectively connected with 3 inlet ports when entering the left side vacuum tank body and/or the right side vacuum tank body.

A third pipeline between the vacuum tank 9 and the vacuum tank 2 is respectively connected with an inlet port when entering the left side vacuum tank body and/or the right side vacuum tank body, and a vacuum suction device 14 is arranged at the inlet port.

A jet device 19 is installed below the temperature heater 17, the jet device 19 comprises a jet hole 1901, a jet pipe 1902, a jet pipe drain hole 1903 and a jet pipe inlet 1904, the jet pipes are arranged in a shape like a Chinese character 'go', or are arranged in a honeycomb shape, the jet hole 1901 is arranged above the jet pipe 1902, and the jet pipe 1902 penetrates through the vacuum tank 2 and is downwards connected with a submerged drying valve 21.

The jet holes 1902 are round holes, the included angle is 90 degrees, and the distance interval is 30-50 mm.

A round hole is formed in the middle of the bottom of the included angle of the bottom of the jet pipe 1902.

The jet aperture 1901 opens upward at an angle of 90 degrees.

The left pulse interface or the right pulse interface of the vacuum tank 9 extends to the bottom of the vacuum tank respectively.

The vacuum pump 29 is connected with a cooling tank 30, the top of the cooling tank 30 is connected with an exhaust port of the vacuum pump 29 through a pipeline five, the bottom of the cooling tank 30 is connected with a water inlet of the vacuum pump 29, the upper part of the cooling tank 30 is connected with a cavitation port of the vacuum pump 29, the cooling tank 30 is externally connected with a water source, and the cooling tank 30 is provided with a water outlet and an exhaust port.

As shown in FIG. 5, the cleaning method of the multi-stage variable-pressure pulse cleaning device is that the cleaning method comprises the steps of water supplementing, heating, vacuum pulse tank pumping, vacuum pulse back pumping and pulse air blowing in a tube cavity. First, it is stated that in the following description, a system that is not described is considered to be in a closed state.

Step 1, water supplementing:

The water replenishing step is a step of injecting a cleaning liquid into the vacuum tank 2 through the water replenishing valve 16. The two modes of vacuum water replenishing and normal pressure water replenishing are divided, and can be selected according to actual conditions. The vacuum water replenishing is that the vacuum tank 2 is filled with water under the negative pressure state, the water replenishing valve 16 is opened, cleaning liquid is injected into the vacuum tank 2 through the water inlet pipeline, the vacuumizing valve 6 is opened, the vacuum pump 29 is started, and the vacuum tank vacuumizing action is started, so that the tank body is kept under the negative pressure (-80 Kpa) state. Under the negative pressure state of the tank body, water outside the water inlet valve is injected into the cleaning tank in a rapid manner, so that the water supplementing efficiency can be improved. When the cleaning liquid reaches the high liquid level 11, the water replenishing valve 16 is closed to stop replenishing water, and the vacuumizing valve 6 is also closed to stop the vacuum pump 29. And the air break valve 8 is opened (3-5 seconds) to recover the vacuum tank 2 to be in a normal pressure state, so that the whole vacuum water replenishing process is completed.

The specific method for using normal pressure water replenishing is that the water replenishing valve 16 and the air breaking valve 8 are opened at the same time, the cleaning liquid is naturally injected into the vacuum tank 2 under the normal pressure (about 0 KPa), and when the cleaning liquid reaches the height of the high liquid level 11, the water replenishing valve 16 and the air breaking valve 8 are closed, so that the water replenishing process is completed.

The injected cleaning liquid needs to be immersed in the cleaning object, but needs to be kept at a certain height with the top of the vacuum tank, and the vacuum tank is divided into a submerged part and a submerged part according to the liquid level. The cleaning liquid can be pure water, tap water or softened water, or various special cleaning agents can be added.

Step 2, heating:

and heating the temperature of the cleaning liquid in the vacuum tank 2 to a set temperature. Firstly, the heater 17 is allowed to be started when the cleaning liquid in the vacuum tank 2 exceeds the height of the low liquid level 13, the temperature sensor 18 reads the real-time temperature of the cleaning liquid, the heating is stopped when the temperature of the cleaning liquid is equal to or higher than the set temperature, the heater 17 is started when the temperature of the cleaning liquid is lower than the set temperature, the temperature of the cleaning liquid is stabilized at about the set temperature, the heating step can penetrate through the whole operation beat according to the changed set temperature, and other steps are not specifically complained of the heating process. The heater 17 may be an electric heating, a steam heating, or the like, or may be a heating device of any shape.

Step 3, vacuum pulse tank pumping:

the process 3 is simply described as a process in which the cleaning liquid is sucked from the vacuum tank 2 into the vacuum tank 9. The method comprises the following specific steps:

Firstly, the water supplementing step 1 and the heating step 2 are executed, so that cleaning liquid with a certain height is injected into the vacuum tank 2, and the vacuum tank is heated to a set temperature. After the steps 1 and 2 are performed, the air break valve 8 is opened to maintain the vacuum tank 2 in a normal pressure (0 KPa) state. After the vacuum pump 29 is started to pump high vacuum to the vacuum tank 9 for a set time (20 seconds) or a set pressure (-90 KPa), the left pulse valve 12 is opened (3-6 seconds), because the vacuum tank 9 has a pressure difference of about-90 KPa relative to the vacuum tank 2, according to the principle that liquid flows from a high pressure place to a low pressure place, the cleaning liquid in the lumen appliance immersed in the cleaning liquid quickly flows into the vacuum tank 9 through the left pulse valve 12 by the vacuum suction device 14 in the vacuum tank 2, because the pressure difference is large, the cleaning liquid in the lumen appliance is quickly injected into the vacuum tank 9 in an extremely short time like a pulse, and strong flushing force is generated in the flowing process to take away stains in the lumen, so that a high-efficiency cleaning effect is achieved. After the left pulse valve 12 is opened for a set time, the left pulse valve 12 is closed, the vacuum pump 29 is stopped, and after a delay of 2 seconds, the tank air break valve 7 and the tank drain valve 28 are opened to drain the cleaning liquid in the vacuum tank 9. The left-hand vacuum pulse canister pumping step of a process is completed. In the same principle, after the vacuum tank is replenished with cleaning liquid, the above-mentioned actions are repeated, but the left pulse valve 12 is changed to the right pulse valve 15, so that the right vacuum pulse tank pumping step of a process can be completed in the same way. The left vacuum pulse tank pumping and the right vacuum pulse tank pumping are alternately executed, and the whole vacuum pulse tank pumping step is finished after the set times are reached.

Step 4, vacuum pulse back pumping

The process 4 is simply described as a process of returning the cleaning liquid from the vacuum tank 9 to the vacuum tank 2. The method comprises the following specific steps:

After the step 3 is performed first, if the vacuum tank is selected not to drain, the step 4 can be performed, and the vacuum pulse is pumped back to the cleaning step.

The specific method is that the air breaking valve 8 connected with the vacuum tank 2 is closed, the vacuum pump 29 is started to vacuumize the vacuum tank 2, and the time is delayed for 10 seconds after the set vacuum degree (-80 KPa) is reached. The tank breaking valve 7 is opened to enable the vacuum tank 9 to be kept in a normal pressure state, at the moment, only the left pulse valve 12 is opened, cleaning liquid in the vacuum tank 9 passes through the vacuum suction device through the left pulse valve 12 under the action of pressure difference, and then is shunted into each lumen through the interface to return to the vacuum tank 2, and because the pressure difference is large, the flow speed is high, so that a relatively strong scouring effect exists in the lumen, stains attached to the lumen are taken away, and the cleaning effect is achieved. Similarly, if the operation is changed from the left pulse valve 12 to the right pulse valve 15, the right vacuum pulse tank pumping step of one flow can be completed. If the step 4 is executed, the step 3 does not need to drain water from the tank, so the step 3 and the step 4 can be alternately executed to wash the cleaning liquid back and forth between the vacuum tank 2 and the vacuum tank 9, and the cleaning purpose of more energy saving and higher efficiency is achieved without additionally supplementing the cleaning liquid.

Step 5, pulse air blowing in the lumen

First, the vacuum tank cover 3 is closed, and the air break valve 8 is closed, so that the vacuum tank 2 is closed. The evacuation valve 6 and the vacuum pump 29 are opened to evacuate the air inside the vacuum tank 2. After a set time (e.g. 20 seconds) or a set pressure value (e.g. -90 KPa) is reached, the vacuum pump 29 and the evacuation valve 6 are closed. At this time, the tank breaking valve 7 was opened to keep the vacuum tank 9 at normal pressure (0 KPa), and the left pulse valve 12 was opened after a delay of 3 seconds. At this time, a relatively large pressure difference exists between the vacuum tank and the vacuum tank, like the principle of a high-pressure water gun, the left pulse valve 12 is opened immediately, air is quickly filled into the inside of the lumen instrument to squeeze away cleaning fluid in the lumen, the left pulse valve is opened for 2 seconds and then closed, the air breaking valve 8 is immediately opened, the vacuum tank 2 is restored to normal pressure, the squeezed-away cleaning fluid in the lumen is quickly backfilled in the place occupied by the air under the normal pressure state, and the relatively large flushing effect is brought to the inside of the lumen by the flowing of the first round, so that the effect of cleaning the inside of the lumen is achieved. The same principle is repeated, and the left pulse valve is changed into the right pulse valve to alternately execute the left and right pulse air blowing steps in the lumen. And ending the pulse air blowing process in the whole lumen after the set times are reached.

After the process 5 is performed, the whole process of embodiment 1 is completed, and the process flows of the process 1 to the process 5 are mainly described in embodiment 1, and peripheral steps can be added according to practical situations, and the steps are not limited to be applied to the cleaning process stage, but can be applied to other processes such as a pre-cleaning process, a rinsing process and the like.

The position or function of each system can be adjusted according to actual conditions.

The following description is mainly directed to the cleaning method of various non-cannula instruments, but can also be used for cleaning cannula instruments.

The water replenishing step and the heating step are the same as the above-described cleaning method, and here, no repeated complaints are made, and the other steps are as follows.

Step 6, multistage submerged variable-pressure pulse cleaning:

Specifically, after the steps 1 and 2 are performed, the cleaning liquid in the vacuum tank 2 reaches the high liquid level 11 and the temperature detected by the temperature sensor 11 reaches the set temperature. The multi-stage submerged variable-pressure pulse cleaning process is started.

When the temperature reaches the set temperature, firstly, the vacuumizing valve 6 is opened, the vacuum pump 29 is started to vacuumize the vacuum tank 2, in the vacuumizing process, the gas in the vacuum tank 2 is pumped out, the gas pressure in the vacuum tank 2 gradually reaches the set vacuum value along with the gradual increase of the vacuum degree, the boiling point of the cleaning liquid in the vacuum tank 2 according to the set vacuum value is reduced, the liquid in the vacuum tank 2 starts to roll, after the pressure sensor 5 reaches the set value, the system time is used for controlling the liquid rolling time in the vacuum tank 2, the submerged jet valve 34,1 seconds to 30 seconds is opened, the external atmospheric pressure is sucked above the liquid level of the vacuum tank 9 along with the filter 20 through the tank breaking valve 7, the balance with the external pressure is kept, the liquid in the vacuum tank 9 rapidly enters the jet pipe 1902, the jet pipe 1902 is uniformly distributed and fixed at the bottom of the vacuum tank 2 in a shape or a honeycomb shape, the liquid in the vacuum tank 9 is instantaneously enters the vacuum tank 2 through the jet pipe 1902, a strong scouring force is formed, and meanwhile, the cleaning liquid in the vacuum tank 2 is driven to rapidly and violently scour after the vacuum tank 2 is rapidly pressurized, and the vacuum tank 2 is restored to the normal pressure.

According to observation, we find that cleaning requirements of different instruments or different parts of the instruments can be met by sequentially adopting various negative pressure states to perform submerged variable-pressure pulse cleaning, wherein the set pressure is firstly assigned to three pressure levels of-60 KPa, -80KPa and-100 KPa, the submerged variable-pressure pulse cleaning processes are sequentially repeated, the variable-pressure pulse cleaning time of the different pressure levels is 1-5 seconds, 3-8 seconds, 9-15 seconds, 12-20 seconds and 20-30 seconds, and the execution of different intervals is the basic principle of the multistage submerged variable-pressure pulse cleaning technology.

The cleaning process of the submerged variable-pressure pulse is generally repeated for 2-5 times, so that the excellent cleaning effect on the pipe instrument can be achieved. One of the characteristics of the multi-stage variable-pressure pulse cleaning technology is that the pressure value or the time value can be adjusted according to the actual situation, and the method is only used as an introduction. For example, the time for opening the submerged jet valve 34 in each submerged variable pressure pulse cleaning process is controlled, so that the liquid supply amount of the vacuum tank 2 in the vacuum negative pressure state is controlled, the impact force and the cleaning force of each injection are different, the cleaning capability is effectively ensured, a large amount of heat is consumed in the vacuumizing boiling process, the temperature of the cleaning liquid is reduced, and when the temperature of the cleaning liquid is reduced below the limited minimum temperature in the cleaning process, the heater 17 is automatically started, so that the cleaning process can be effectively performed.

Step 7, multistage liquid pressure-variable phase pulse cleaning:

Specifically, after the steps 1 and 2 are performed, the cleaning liquid in the vacuum tank 2 reaches the high liquid level 11 and the temperature detected by the temperature sensor 11 reaches the set temperature. The multistage liquid-borne variable-pressure phase pulse cleaning process is started.

Firstly, the vacuumizing valve 6 is opened, the vacuum pump 29 is started to vacuumize the vacuum tank 2, during the vacuumizing process, the gas in the vacuum tank 2 is pumped out, the air content in the cleaning liquid in the vacuum tank 2 is gradually reduced along with the gradual increase of the vacuum degree, and the partial boiling phenomenon is caused, after the pressure sensor 5 detects that the pressure reaches the set pressure and is maintained for a period of time, the gas breaking valve 8 is opened, because the vacuum tank 2 is in a negative pressure state, a large amount of gas is generated to be flushed into the vacuum tank 2 due to the huge pressure difference, powerful flushing is formed on the instruments immersed in the cleaning liquid, and the normal pressure is quickly restored in the vacuum tank 2.

According to observation, the number and the fluctuation intensity of bubbles generated by filling air into the liquid surface under different pressures are different, the cleaning requirements of different instruments or different parts of the instruments can be met by sequentially adopting various negative pressure states to perform liquid pressure pulse cleaning, the set pressure is firstly assigned to be three pressure levels of-100 KPa, -120KPa and-150 KPa, the liquid pressure pulse cleaning process is sequentially repeated, the liquid phase pulse cleaning of different pressure levels is performed for 1-5 seconds, 3-8 seconds, 9-15 seconds, 12-20 seconds and 20-30 seconds, and the execution of different intervals is the basic principle of the multistage liquid pressure pulse cleaning technology.

The pressure-variable pulse cleaning process on the liquid is generally repeated for 2-5 times, so that the excellent cleaning effect on the pipe instrument can be achieved. One of the characteristics of the multi-stage liquid pressure swing pulse cleaning technology is that the pressure value or time and other numerical values can be adjusted according to practical situations, and the method is only used as an introduction of a method, for example, the air break valve 8 opening time in each liquid pressure swing pulse cleaning process is controlled, so that the quantity of bubbles and the jumping strength generated when cleaning liquid is suddenly boiled are controlled, damage to the moving position of the instrument caused by excessive stirring is avoided, and the cleaning capability is effectively ensured.

Example 1

A multistage variable-pressure pulse cleaning device comprises a silica gel suction device 14, left pulse valves and right pulse valves at the left end and the right end in a vacuum tank, wherein the left pulse valve and the right pulse valve are respectively connected to a vacuum tank, a plurality of interfaces of the structure part of the vacuum tank are respectively (a first connecting port 901, a second connecting port 902, a third connecting port 903, a fourth connecting port 904 and a fifth connecting port 905), a vacuum pump air pumping port is connected with a vacuum pump through a one-way valve by a one-way valve through a vacuum tank first connecting port 901 air pumping valve, a filter is arranged at the inlet of a vacuum tank 9 through a breaking valve pipeline of the second connecting port 902, a left pulse valve pipeline of the vacuum tank third connecting port 903, a right pulse valve pipeline of the vacuum tank fourth connecting port 904 and a drain valve pipeline of the vacuum tank fifth connecting port 905. For cleaning the lumen instrument 4, firstly putting the cleaned object 4 into a vacuum tank 2 according to the requirement, closing a vacuum tank cover 3, supplementing water to the vacuum tank 2, heating a cleaning liquid in the vacuum tank 2 by a heating device 17 after the water is supplemented to a set water level, opening a vacuum pump 29 to cool a solenoid valve 31 to connect a tank pumping valve 33 with a vacuum tank 9 after the temperature reaches the set temperature at 45-55 ℃, forming high negative pressure in the vacuum tank 9, firstly opening a vacuum tank 2 air breaking valve 8, then opening the vacuum tank 9 to connect a left pulse valve 12, sucking a silica gel device 14 in the vacuum tank 2 through a pipeline, directly inserting the cleaning liquid into the silica gel suction device 14 through the cleaned object 4 in the vacuum tank 2, and generating rapid sucking pulses on the inner wall of the cleaned object 4 into the vacuum tank 9. The tank-drawing valve 33 is closed, the vacuum-drawing valve 6 is opened, the atmospheric pressure of the vacuum tank 2 is drawn, the tank-breaking valve 7 and the left pulse valve 12 are opened, the cleaning liquid in the vacuum tank 9 is backflushed to the silica gel suction device 14, and flows out into the vacuum tank 2 through the inner wall of the cleaned object 4, so that left positive pulse and left negative pulse are formed. And simultaneously starting the vacuum pump 29 to cool the electromagnetic valve 31 to connect the tank suction valve 33 with the vacuum tank 9, forming high negative pressure in the vacuum tank 9, opening the vacuum tank 9 to connect the right pulse valve 15, sucking the silica gel device 14 in the vacuum tank 2 through a pipeline, and directly inserting the cleaning liquid into the silica gel suction device 14 through the cleaned object 4 in the vacuum tank 2, wherein the inner wall of the cleaned object 4 generates rapid suction pulses into the vacuum tank 9. Closing the tank drawing valve 7, opening the vacuum drawing valve 6, drawing out the atmospheric pressure of the vacuum tank 2, opening the tank breaking valve 33 and the right pulse valve 15, and backflushing the cleaning liquid in the vacuum tank 9 into the vacuum tank 2 to form right positive pulse and right reverse pulse, so that the cleaning liquid on the inner wall of the cleaned object 4 is flushed along the negative pressure suction direction, thereby completing the process of cleaning by suction left and right multistage variable pressure pulses once, repeating the process of breaking the air for 1-5 times, and having excellent cleaning effect on the cleaned object 4. In the process of opening the gas breaking valve 8 for each time, the opening time of the gas breaking valve 8 is different, and the air supply amount of each time of gas breaking is indirectly controlled by controlling the opening time, so that the impact force and the cleaning force of each time of gas breaking are different, the cleaning capability is effectively ensured, a large amount of heat is consumed in the process of pumping multi-stage variable-pressure pulse, the temperature of the cleaning liquid is reduced, and when the temperature detected by the cleaning liquid temperature sensor 18 in the cleaning process is reduced below the limited minimum temperature, the heating device 17 is automatically opened, so that the cleaning process can be effectively carried out.

The foregoing is merely a preferred embodiment of the present invention, which has been described in further detail in connection with specific preferred embodiments thereof, and it should not be construed that the invention is limited to these embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The multistage variable-pressure pulse cleaning device is characterized by mainly comprising a vacuum tank, wherein a vacuum tank cover is sealed in the vacuum tank, a pressure sensor and a gas breaking valve are arranged at the upper part of a tank body of the vacuum tank, a temperature heater and a temperature sensor are arranged at the bottom of the inner side of the vacuum tank, an ultrasonic transducer is arranged at the bottom of the outer side of the vacuum tank, the vacuum tank is connected with a vacuum pump through a pipeline I, a vacuumizing valve is arranged on the pipeline I, a vacuum tank is arranged between the vacuum tank and the vacuum pump, a tank breaking valve is arranged at the top of the vacuum tank, a tank drainage valve is arranged at the bottom of the vacuum tank, a tank vacuumizing valve is arranged on a connecting pipeline II of the vacuum tank and the vacuum pump, the vacuum tank is characterized in that a pipeline III between the vacuum tank and the vacuum tank is respectively connected with a left side vacuum tank body and a right side vacuum tank body, a left pulse valve and a right pulse valve are respectively arranged on the pipeline III between the vacuum tank and the vacuum tank, the vacuum pump is connected with a cooling tank, the top of the cooling tank is connected with a vacuum pump exhaust port through a pipeline V, the bottom of the cooling tank is connected with a vacuum pump water inlet, the upper part of the cooling tank is connected with a cavitation port of the vacuum pump, the cooling tank is externally connected with a water source, a water outlet and an exhaust port are arranged on the cooling tank, a pressure sensor is arranged outside the vacuum tank, the pressure sensor is connected with the vacuum tank through a pipeline V, a connecting port of the pipeline V is above the water level, and the pressure sensor detects the vacuum degree in the vacuum tank; a jet device is arranged below the temperature heater and comprises a jet hole, a jet pipe drain hole and a jet pipe inlet, the jet hole is arranged above the jet pipe, the jet pipe penetrates through the tank body and is downwards connected with a submerged drying valve, the jet pipe is provided with a jet pipe drain hole, the jet device is connected with the vacuum tank through a pipeline seven, the pipeline seven is provided with a submerged jet valve, the submerged drying valve is connected with the jet device and external air, and the pressure sensor, the air breaking valve, the temperature heater, the temperature sensor, the ultrasonic transducer, the drain valve, the vacuumizing valve, the tank breaking valve, the tank drain valve, the tank pumping valve, the submerged jet valve, the submerged drying valve, the left pulse valve and the right pulse valve are controlled by an integrated control system.

2. The multistage variable-pressure pulse cleaning device according to claim 1, wherein a vacuum suction device is arranged at an inlet port of a pipeline III between the vacuum tank and the vacuum tank when the pipeline III is connected into the left vacuum tank body and the right vacuum tank body respectively, the vacuum suction device comprises a vacuum suction movable clamping device and a vacuum suction split-flow box, the vacuum suction movable clamping device comprises a guide plate, a sleeve plate and a fixed plate, the guide plate is connected with the sleeve plate, the sleeve plate is connected with the fixed plate, the sleeve plate is clamped between the guide plate and the fixed plate, an opening is formed in the fixed plate, the vacuum suction split-flow box comprises a box body and a movable joint, the movable joint is of a tubular structure, the head side of the movable joint is provided with a chamfer bulge circular ring structure, one side of the movable joint is just put into the sleeve plate through the guide plate and is in sealing connection with the opening of the fixed plate, one side of the box body is provided with at least one input port, the other side of the movable joint is connected with the input port of the box body, the other side of the box body is also provided with at least one output port, the output port is provided with silica gel, and the silica gel is inserted into the joint to enable the silica gel to flow through the inner wall of the cleaning object to be cleaned.

3. The multistage variable-pressure pulse cleaning device according to claim 2, wherein a telescopic tubular connector is arranged in an opening on the fixing plate, a spring is arranged in the fixing plate, one side of the spring is sleeved inside the tubular connector, the outer part of the tubular connector is sleeved into a circular ring, the circular ring is in threaded connection with the opening on the fixing plate, when the movable connector is placed into the sleeve plate, the tubular connector is pressed into the opening, and when the movable connector is taken out, the tubular connector slightly pops out of the opening under the action of elastic force.

4. The multistage variable-pressure pulse cleaning device according to claim 1, wherein the jet holes are circular holes 1-3 mm apart by 30-50 mm, and the jet holes are upward in opening.

5. The multistage variable-pressure pulse cleaning device according to claim 1, wherein the number of inlet ports for connecting the third pipeline between the vacuum tank and the vacuum tank to the left vacuum tank and the right vacuum tank is n or more than 1.

6. The multi-stage variable voltage pulse cleaning device according to claim 1, wherein the jet pipe is "out" shaped or honeycomb shaped.