CN214865698U

CN214865698U - Cleaning equipment

Info

Publication number: CN214865698U
Application number: CN202023181460.9U
Authority: CN
Inventors: 纪登才; 张志生; 张挺; 杨晓明
Original assignee: Zhejiang Meier Medical Technology Co ltd
Current assignee: Zhejiang Meier Medical Technology Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-26
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a cleaning device, which belongs to the technical field of instrument cleaning and comprises a cleaning tank, wherein a sealing door is arranged at the opening of the cleaning tank; the vacuumizing device is communicated with the cleaning tank; the heating device is arranged in the cleaning tank; the air return device comprises an air return coil, a first air return pipe and a first air return valve, the air return coil is arranged at the bottom of the cleaning tank, a plurality of air inlets are formed in the air return coil, the first air return pipe is communicated with the air return coil and used for conveying air to the air return coil, and the first air return valve is installed on the first air return pipe and used for controlling the on-off of the first air return pipe. The utility model provides a cleaning method and cleaning equipment can reduce and treat that cleaning instrument causes the probability of damage, and has higher cleaning efficiency and better cleaning performance.

Description

Cleaning equipment

Technical Field

The utility model relates to an apparatus washs technical field, especially relates to a cleaning equipment.

Background

Currently, in order to reduce the cost of using medical instruments, some of the used medical instruments need to be recycled, but before being reused, the used medical instruments need to be cleaned.

In the prior art, the cleaning method for the medical apparatus generally includes ultrasonic cleaning, spray cleaning, and the like. The ultrasonic cleaning is used for cleaning a precise and valuable medical instrument, but the medical instrument is easy to damage under the ultrasonic condition, and the application range is small; the spray cleaning is a method of spraying a detergent into the medical instrument, and is widely applicable, but when the flow rate of the liquid sprayed from the spray nozzle is high, the medical instrument is easily damaged, and when the flow rate of the liquid sprayed from the spray nozzle is low, dirt on the medical instrument cannot be effectively removed, so that the flow rate of the liquid sprayed from the spray nozzle needs to be controlled according to the medical instrument to be cleaned, and thus the cleaning efficiency of the cleaning method of the related art is low, and the cleaning effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cleaning equipment can reduce and treat that cleaning instrument causes the probability of damage, and has higher cleaning efficiency and better cleaning performance.

As the conception, the utility model adopts the technical proposal that:

a cleaning apparatus comprising:

the washing tank is provided with a sealing door at the opening;

the vacuumizing device is communicated with the cleaning tank;

the heating device is arranged in the cleaning tank;

the air return device comprises an air return coil, a first air return pipe and a first air return valve, the air return coil is arranged at the bottom of the cleaning tank, a plurality of air inlets are formed in the air return coil, the first air return pipe is communicated with the air return coil and used for conveying air to the air return coil, and the first air return valve is installed on the first air return pipe and used for controlling the on-off of the first air return pipe.

Optionally, the air return device further includes a second air return pipe and a second air return valve, the second air return pipe is connected to the top of the cleaning tank and used for conveying air into the cleaning tank, and the second air return valve is installed on the second air return pipe and used for controlling on/off of the second air return pipe.

Optionally, the cleaning tank further comprises a gas filter, the first gas return pipe is communicated with the gas filter, and the second gas return pipe is communicated with the gas filter and the cleaning tank.

Optionally, the heating device comprises a plurality of heating pipes fixed on the bottom wall of the cleaning tank.

Optionally, the air return coil pipe includes main part pipe portion and communicate in two connecting pipe portions of main part pipe portion, two connecting pipe portion is fixed in respectively on the washing tank diapire, and two connecting pipe portion respectively with first air return pipe intercommunication, the inlet port is located on the main part pipe portion, the heating pipe is located main part pipe portion below.

Optionally, the aperture of the air inlet hole gradually increases along a preset direction, and the preset direction is the direction of the inner wall of the main body pipe portion pointing to the outer wall.

Optionally, the air return coil is fixed to the bottom of the cleaning tank, and the air return coil is U-shaped, S-shaped or "return" shaped.

Optionally, the vacuum pumping device comprises a vacuum pump, a vacuum pipeline and a vacuum valve, one end of the vacuum pipe is connected to the vacuum pump, the other end of the vacuum pipe is connected to the top of the side wall of the cleaning tank, and the vacuum valve is mounted on the vacuum pipe and used for controlling the on-off of the vacuum pipe.

Optionally, the cleaning tank further comprises a pressure sensor and a temperature sensor respectively installed in the cleaning tank.

Optionally, the cleaning tank further comprises a drain pipe and a drain valve mounted on the drain pipe, and the drain pipe is connected to the bottom wall of the cleaning tank.

The utility model discloses following beneficial effect has at least:

the utility model provides a cleaning method and cleaning equipment, firstly, the apparatus to be cleaned is placed in the cleaning tank, then, the cleaning agent and the cleaning water are injected into the cleaning tank, then the heating device is started, and the heating device is controlled to heat the liquid in the cleaning tank to the first preset temperature, so that the apparatus to be cleaned can be cleaned subsequently at a proper temperature, simultaneously, the vacuumizing device is started, and the vacuumizing device is controlled to pump the pressure in the cleaning tank to the first preset pressure, at the moment, the pressure of the gas in the cleaning tank is lower, then, the gas is injected into the cleaning tank through the gas return device, so that the liquid in the cleaning tank is boiled under the disturbance of the gas and generates bubbles, the generated bubbles can be fully contacted with the apparatus to be cleaned, so as to clean the apparatus to be cleaned, compared with the cleaning mode of adopting the cleaning nozzle in the prior art, the flow rate of the liquid in the cleaning tank is smaller, the probability of damage to the to-be-cleaned instrument can be reduced, and the bubbles can be fully contacted with the to-be-cleaned instrument, so that the cleaning effect and the cleaning efficiency are improved.

Drawings

Fig. 1 is a schematic view of a cleaning apparatus provided in an embodiment of the present invention;

fig. 2 is a first flowchart of a cleaning method according to an embodiment of the present invention;

fig. 3 is a second flowchart of a cleaning method according to an embodiment of the present invention.

In the figure:

1. a cleaning tank; 2. a vacuum pumping device; 21. a vacuum valve; 3. a heating device; 41. an air return coil pipe; 411. An air inlet; 42. a first gas return pipe; 43. a first air return valve; 44. a second air return valve; 45. a second muffler; 5. a gas filter; 6. a pressure sensor; 7. a temperature sensor; 8. a water injection valve; 9. a cleaning agent valve; 10. an instrument to be cleaned; 20. washing water; 30. a cleaning agent container; 40. and a drain valve.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present embodiment provides a cleaning apparatus that can be used to clean the device 10 to be cleaned, and that can have high cleaning efficiency and cleaning effect. The device 10 to be cleaned may be a medical device, among others.

As shown in fig. 1, the cleaning apparatus provided in this embodiment includes a cleaning tank 1, a vacuum extractor 2, a heating device 3, and an air returning device. Wherein, washing tank 1 is used for holding treating cleaning apparatus 10, and the opening part of washing tank 1 is installed with sealing door to can seal washing tank 1.

The vacuum extractor 2 is communicated with the cleaning tank 1 and is used for vacuumizing the cleaning tank 1. Illustratively, the vacuum pumping device 2 may include a vacuum pump, a vacuum line, and a vacuum valve 21, wherein the vacuum pump is connected to the cleaning tank 1 through the vacuum line, and the vacuum valve 21 is installed on the vacuum line and is controlled to open or close the vacuum line. Optionally, a vacuum pipe is installed at an upper end of the cleaning tank 1 to prevent the liquid in the cleaning tank 1 from entering the vacuum pipe, and a sealing structure is provided at a position where the vacuum pipe is connected to the cleaning tank 1 to improve the sealability of the cleaning tank 1.

The heating device 3 is disposed in the cleaning tank 1 and is used for heating the liquid in the cleaning tank 1. Illustratively, the heating device 3 includes a plurality of heating pipes disposed at the bottom of the cleaning bath 1, so that the heating efficiency can be improved.

Referring to fig. 1, the air returning device includes an air returning coil 41, a first air returning pipe 42, a first air returning valve 43, a second air returning valve 44 and a second air returning pipe 45. Wherein, the air return coil 41 is disposed in the cleaning tank 1, and a plurality of air inlets 411 are disposed on a pipe wall of the air return coil 41, and the plurality of air inlets 411 are disposed along a length direction of the air return coil 41. The first air return pipe 42 is connected to the air return coil 41 for conveying air into the air return coil 41, and the first air return valve 43 is installed on the first air return pipe 42 for controlling on/off of the first air return pipe 42. The second air return pipe 45 is connected to the top of the cleaning tank 1 and is communicated with the cleaning tank 1, and the second air return pipe 45 is used for conveying air into the cleaning tank 1. The second air return valve 44 is installed on the second air return pipe 45 and is used for controlling the on-off of the second air return pipe 45.

Alternatively, the air return coil 41 may include a main pipe portion and two connecting pipe portions communicated with the main pipe portion, the two connecting pipe portions are respectively fixed on the bottom wall of the cleaning tank 1, the two connecting pipe portions are respectively communicated with the first air return pipe 42, the air inlet 411 is disposed on the main pipe portion, and the heating pipe is located below the main pipe portion and between the two connecting pipe portions. By providing two connecting pipe portions, the speed and efficiency of introducing gas into the return air coil 41 can be improved. It can be understood that a plurality of air return coils 41 can be provided, and a plurality of air return coils 41 are sequentially arranged in the cleaning tank 1, so as to improve the number of the air inlet holes 411 and the uniformity of air inflation in the cleaning tank 1.

Further, the aperture of the air inlet hole 411 gradually increases along a preset direction, and the first direction is a direction in which the inner wall of the main body pipe portion points to the outer wall. For example, the air inlet holes 411 may be circular holes, square holes, trapezoidal holes, etc., and the embodiment is not limited thereto.

Further, as shown in fig. 1, the air return coil 41 is fixed at the bottom of the cleaning tank 1, and when air is introduced into the air return coil 41, the air can move upward from the bottom of the cleaning tank 1, so as to improve the disturbance effect of the air on the liquid in the cleaning tank 1 and improve the effect of the liquid fully contacting with the to-be-cleaned device 10. Illustratively, the air return coil 41 is U-shaped, S-shaped, or zigzag-shaped, so as to improve the uniformity of the distribution of the air inlet holes 411, and further improve the uniformity of cleaning the to-be-cleaned device 10, thereby preventing the occurrence of dead cleaning corners.

Optionally, as shown in fig. 1, the cleaning apparatus further comprises a gas filter 5. The first air return pipe 42 is connected to the air filter 5 and the air return coil 41, and the second air return pipe 45 is connected to the air filter 5 and the cleaning tank 1. The gas enters the first air return pipe 42 and the second air return pipe 45 after being filtered by the gas filter 5, so that the gas entering the cleaning tank 1 is not doped with impurities, and the addition of impurities on the instrument 10 to be cleaned can be avoided.

In this embodiment, as shown in fig. 1, a drain pipe for discharging liquid is further connected to the bottom of the cleaning tank 1, a drain valve 40 is mounted on the drain pipe, and the drain valve 40 is used for controlling on/off of the drain pipe. And, the lateral wall of washing tank 1 still is connected with the cleaner pipe, installs cleaner valve 9 on the cleaner pipe, and cleaner pipe intercommunication in cleaner container 30, and cleaner container 30 is used for injecting the cleaner into washing tank 1. In addition, a water injection pipe for injecting the cleaning agent into the cleaning tank 1 is connected to the side wall of the cleaning tank 1, and a water injection valve 8 is installed on the water injection pipe.

The cleaning apparatus in the present embodiment further includes a pressure sensor 6 and a temperature sensor 7 which are mounted on the cleaning tank 1, respectively. The pressure sensor 6 is used for detecting the pressure of the gas in the cleaning tank 1, and the temperature sensor 7 is used for detecting the temperature of the liquid in the cleaning tank 1. Further, the cleaning equipment may further include a controller, and the controller is connected to the pressure sensor 6, the temperature sensor 7, the heating device 3, and the vacuum pumping device 2, and is configured to receive a pressure signal detected by the pressure sensor 6, receive a temperature signal detected by the temperature sensor 7, control the opening and closing of the vacuum pumping device 2 according to the pressure signal, and control the opening and closing of the heating device 3 according to the temperature signal.

When the cleaning device provided by the embodiment is used, firstly, the to-be-cleaned apparatus 10 is placed in the cleaning tank 1, then, the cleaning agent and the cleaning water 20 are injected into the cleaning tank 1, then, the heating device 3 is started, and the heating device 3 is controlled to heat the liquid in the cleaning tank 1, so that the to-be-cleaned apparatus 10 can be subsequently cleaned at a proper temperature, meanwhile, the vacuumizing device 2 is started, and the vacuumizing device 2 is controlled to vacuumize the cleaning tank 1, at this time, the pressure of the gas in the cleaning tank 1 is low, then, the gas is injected into the cleaning tank 1 through the gas return device, so that the liquid in the cleaning tank 1 is boiled under the disturbance of the gas and generates bubbles, and the generated bubbles can be fully contacted with the to-be-cleaned apparatus 10 to clean the to-be-cleaned apparatus 10, compared with the cleaning mode of the cleaning nozzle adopted in the prior art, the flow rate of the liquid in the cleaning tank 1 is small, the probability of damage to the to-be-cleaned instrument 10 can be reduced, and the bubbles can be in full contact with the to-be-cleaned instrument 10, so that the cleaning effect and the cleaning efficiency are improved.

Moreover, the cleaning equipment provided by the embodiment is simple in structure, low in cost and convenient to operate.

The cleaning method provided by the embodiment can be used for the above cleaning apparatus, wherein the cleaning method includes a cleaning process, as shown in fig. 2, and the cleaning process includes the following steps:

s1, the instrument 10 to be cleaned is placed in the sealed cleaning tank 1, and the cleaning agent and the cleaning water 20 are injected into the cleaning tank 1.

In step S1, will treat cleaning apparatus 10 and place in washing tank 1 earlier, it is concrete, can fix treating cleaning apparatus 10 in washing tank 1, then close the sealing door on washing tank 1 for washing tank 1 is in sealed state, later open water injection valve 8, wash water 20 with injecting into through the water injection pipe in to washing tank 1, simultaneously, open cleaner valve 9, just inject the cleaner into through the cleaner pipe in washing, the addition of cleaner can improve the cleaning performance who treats cleaning apparatus 10.

S2, heating the liquid in the cleaning tank 1 to a first preset temperature.

In step S2, the heating device 3 is activated so that the heating device 3 heats the liquid in the cleaning tank 1, and when the temperature of the liquid in the cleaning tank 1 reaches the first preset temperature, the heating device 3 is turned off. Wherein, can detect the temperature of liquid in washing tank 1 through temperature sensor 7, temperature sensor 7 can transmit the temperature signal who detects to the controller, and the controller is according to opening and close of temperature signal control heating device 3. Optionally, in the cleaning process, when the controller determines that the temperature of the liquid in the cleaning tank 1 is lower than the first preset temperature, the heating device 3 may be controlled to start to heat the liquid to the first preset temperature again, so that the temperature of the liquid in the cleaning tank 1 can be always kept at the first preset temperature to improve the cleaning effect. Illustratively, the first predetermined temperature is 45-55 ℃.

Optionally, before step S2, the cleaning method further includes heating the liquid in the cleaning tank 1 to a fourth preset temperature, and then soaking the instrument 10 to be cleaned in the cleaning tank 1 for a second preset time. Specifically, the heating device 3 is started, the heating device 3 is controlled to heat the cleaning water 20 in the cleaning tank 1 to a fourth preset temperature, and the to-be-cleaned device 10 is soaked in the cleaning tank 1 for a second preset time period, so as to remove dirt attached to the to-be-cleaned device 10. Illustratively, the fourth preset temperature is 25-30 ℃, and the second preset time is 5-10 minutes.

S3, vacuumizing the cleaning tank 1 until the pressure in the cleaning tank 1 is a first preset pressure.

In step S3, the vacuum extractor 2 may be activated such that the vacuum extractor 2 vacuumizes the cleaning tank 1, and the vacuum extractor 2 is turned off when the pressure in the cleaning tank 1 reaches the first preset pressure. After the pressure in the cleaning tank 1 reaches the first preset pressure, the liquid in the cleaning tank 1 boils to a small extent, and then the first preset pressure is maintained for 10-60 seconds, so that the liquid in the cleaning tank 1 can preliminarily clean the to-be-cleaned instrument 10. Illustratively, the first predetermined pressure is-75 kPa to-90 kPa.

It should be noted that the steps S2 and S3 may be performed synchronously, that is, the heating device 3 is started and the vacuum extractor 2 is started at the same time, so as to shorten the cleaning time of the equipment to be cleaned.

S4, introducing gas into the cleaning tank 1 to boil the liquid in the cleaning tank 1 to generate bubbles for cleaning the apparatus 10 to be cleaned.

After treating cleaning device 10 and tentatively rinsing, can let in the gas under the ordinary pressure in to washing tank 1 through inlet port 411 on the air return coil 21, because the pressure in washing tank 1 is less than the pressure of the gas that lets in for gas in the washing tank 1 takes place strong disturbance, and then makes the liquid in the washing tank 1 produce violent boiling, carries out the degree of depth washing in order to treat cleaning device 10, and then guarantees the cleaning performance.

Alternatively, when the instrument 10 to be cleaned has a lumen, as shown in fig. 3, step S4 may include:

s41, introducing gas to the bottom of the cleaning tank 1 to boil the liquid in the cleaning tank 1 and generate bubbles, wherein the bubbles clean the surface of the apparatus 10 to be cleaned, and when the pressure in the cleaning tank 1 reaches a second preset pressure, the introduction of gas to the bottom of the cleaning tank is stopped.

Specifically, in step S41, the first air return valve 43 may be opened first, and air is introduced into the bottom of the cleaning tank 1 through the first air return pipe 42, the air return coil 41 and the air inlet 411, so that the air in the cleaning tank 1 is disturbed strongly, and the liquid in the cleaning tank 1 is boiled vigorously to generate bubbles, so as to clean the surface cleaning apparatus in the apparatus 10 to be cleaned. The first air return valve 43 is closed when the pressure in the cleaning tank 1 reaches a second preset pressure. Illustratively, the second preset pressure is-20 Kpa to-50 Kpa, that is, a certain vacuum degree is still in the cleaning tank 1.

S42, introducing gas to the top of the cleaning tank 1 and blasting bubbles in the cleaning tank 1, wherein the bubbles can drive liquid to be extruded to the pipe cavity to clean the pipe cavity.

Specifically, in step S42, the second air return valve 44 may be opened first, and air is introduced into the top of the cleaning tank 1 through the second air return pipe 45, so that the pressure in the cleaning tank 1 suddenly rises, and the bubbles in the cleaning tank 1 explode, and the bubbles explode to drive the liquid in the cleaning tank to be extruded into the pipe cavity, so as to clean the inside of the pipe cavity, and the second air return valve 44 is closed when the pressure in the cleaning tank 1 reaches the fifth preset pressure. Illustratively, the fifth preset pressure is equal to the atmospheric pressure, that is, when the pressure in the cleaning tank 1 is equal to the atmospheric pressure, the second air return valve 44 is controlled to be closed.

In this embodiment, the first air return valve 43 and the second air return valve 44 may be respectively connected to a controller, and the controller can control the opening and closing of the first air return valve 43 and the second air return valve 44.

In the prior art, the spray cleaning equipment needs to replace different cleaning racks according to different cleaning positions. For example, the cleaning racks for cleaning surface cleaning devices such as scissors and dressing bowls are different from the cleaning racks for cleaning lumen cleaning devices such as dental handpieces, hard inner diameters and hoses, so that the medical devices need to be classified and then cleaned respectively before being cleaned, and the tubular devices need to be inserted into the cleaning nozzles of the cleaning racks one by one and then subsequently cleaned after being cleaned, which results in low efficiency of the equipment and method for cleaning the medical devices in the prior art.

In the cleaning method provided by the embodiment, gas is firstly introduced into the bottom of the cleaning tank 1 to clean the surface cleaning apparatus in the apparatus 10 to be cleaned, and then gas is introduced into the top of the cleaning tank 1 to clean the tube cavity in the apparatus 10 to be cleaned, so that the apparatus 10 to be cleaned does not need to be classified before cleaning, the cleaning efficiency is improved, and the cleaning effect is ensured.

After the step S4 is completed, in order to further improve the cleaning effect, the steps S2-S4 may be repeatedly executed several times, or the steps S2-S4 may be repeatedly executed within a preset cleaning time period, so as to implement the reciprocating vacuum cleaning of the apparatus 10 to be cleaned, so that the dirt on the apparatus 10 to be cleaned can be completely removed. Optionally, the preset cleaning time can be determined according to the size of the instrument 10 to be cleaned or the number of the cleaning dead zones, and for example, the preset cleaning time is 5-20 minutes.

In the cleaning method provided by this embodiment, the to-be-cleaned device 10 is placed in the cleaning tank 1, then the cleaning agent and the cleaning water 20 are injected into the cleaning tank 1, then the liquid in the cleaning tank 1 is heated to the first preset temperature, so that the to-be-cleaned device 10 can be subsequently cleaned at a proper temperature, meanwhile, the cleaning tank 1 is vacuumized until the pressure in the cleaning tank 1 is the first preset pressure, so as to reduce the pressure of the gas in the cleaning tank 1, then the gas is injected into the cleaning tank 1, so that the liquid in the cleaning tank 1 is boiled under the disturbance of the gas and generates bubbles, and the generated bubbles can sufficiently contact with the to-be-cleaned device 10, so as to clean the to-be-cleaned device 10, compared with the prior art in which a cleaning manner of a cleaning nozzle is adopted, the flow rate of the liquid in the cleaning tank 1 is small, so that the probability of damage to-be-cleaned device 10 can be reduced, and the air bubbles can be fully contacted with the device 10 to be cleaned, so that the cleaning effect and the cleaning efficiency are improved.

Further, after the cleaning process, a rinsing process is required to be performed on the device 10 to be cleaned, and specifically, as shown in fig. 3, after step S4, the cleaning method further includes:

s5, emptying the liquid in the cleaning tank 1.

In step S5, the drain valve 40 is controlled by the controller to open to drain the liquid in the cleaning tank 1.

S6, washing water 20 is injected into washing tub 1.

After the liquid in washing tub 1 is drained, washing water 20 is injected into washing tub 1 to perform rinsing of appliance to be washed 10. In this embodiment, the washing water 20 in the washing tank 1 needs to be submerged in the device 10 to be washed to ensure the rinsing effect.

S7, heating the cleaning water in the cleaning tank 1 to a second preset temperature.

In step S7, the heating device 3 is activated so that the heating device 3 heats the liquid in the cleaning tank 1, and when the temperature of the liquid in the cleaning tank 1 reaches the second predetermined temperature, the heating device 3 is turned off. Optionally, the second preset temperature is 25-35 ℃.

Optionally, before step S7, the heating device 3 may be activated, so that the heating device 3 heats the liquid in the cleaning tank 1 to a preset temperature, and then the apparatus 10 to be cleaned is soaked, so as to improve the rinsing effect.

And S8, vacuumizing the cleaning tank 1 until the pressure in the cleaning tank 1 is a third preset pressure.

In step S8, the vacuum extractor 2 is activated so that the vacuum extractor 2 vacuumizes the cleaning tank 1, and when the pressure in the cleaning tank 1 reaches a third preset pressure, the vacuum extractor 2 is turned off. When the pressure in the cleaning tank 1 reaches a third preset pressure, the liquid in the cleaning tank 1 boils, and the third preset pressure is maintained for 10-60 seconds, so that the liquid in the cleaning tank 1 can be used for preliminarily rinsing the to-be-cleaned instrument 10. Illustratively, the third predetermined pressure is between-65 kPa and-75 kPa.

It should be noted that step S7 and step S8 may be performed synchronously, that is, the vacuum extractor 2 is started at the same time as the heating device 3 is started, so as to shorten the rinsing time period of the equipment to be cleaned.

S9, introducing air to the bottom of the cleaning tank 1 to boil the cleaning water 20 in the cleaning tank 1 and generate bubbles, wherein the bubbles can rinse the surface of the device 10 to be cleaned, and stop introducing air to the bottom of the cleaning tank 1 when the pressure in the cleaning tank 1 reaches a fourth preset pressure.

In step S9, the first air return valve 43 may be opened, and air is introduced into the bottom of the cleaning tank 1 through the first air return pipe 42, the air return coil 41 and the air inlet 411, so that the liquid in the cleaning tank 1 is boiled and bubbles are generated, thereby rinsing the surface of the apparatus 10 to be cleaned. The first air return valve 43 is closed when the pressure in the cleaning tank 1 reaches the fourth preset pressure. Illustratively, the fourth preset pressure is-45 Kpa to-55 Kpa, that is, a certain vacuum degree is still in the cleaning tank 1.

And S10, introducing gas to the top of the cleaning tank 1, exploding bubbles in the cleaning tank 1, and driving the cleaning water to be extruded to the pipe cavity by the bubble explosion to rinse the pipe cavity.

In step S10, second air return valve 44 is opened, and air is introduced into cleaning tank 1 from the top of cleaning tank 1 through second air return valve 44, so that the pressure in cleaning tank 1 is suddenly raised, so as to burst the bubbles in cleaning tank 1, and wash water 20 in cleaning tank 1 is squeezed into the lumen, thereby rinsing the inside of the lumen. The second air return valve 44 is closed when the pressure in the cleaning tank 1 reaches the sixth preset pressure. In this embodiment, the sixth preset pressure is equal to the atmospheric pressure, that is, when the pressure in the cleaning tank 1 is equal to the atmospheric pressure, the second air return valve 44 is controlled to close.

After the step S10 is completed, in order to improve the rinsing effect of the to-be-cleaned device 10, the steps S8-S10 may be repeatedly executed several times, or the steps S7-S10 may be repeatedly executed within a preset rinsing duration to achieve multiple times of rinsing of the to-be-cleaned device 10, so as to avoid the cleaning agent adhering to the to-be-cleaned device 10.

In this embodiment, after the rinsing process, the apparatus 10 to be cleaned may be further sterilized, and specifically, after step S10, the cleaning method further includes the following steps:

s11, the liquid in washing tub 1 is drained, and washing water 20 is poured into washing tub 1.

By opening drain valve 40 to drain the liquid in washing tub 1, after the liquid in washing tub 1 is drained, washing water 20 is injected into washing tub 1 to sterilize instruments 10 to be washed.

S12, heating the liquid in the cleaning tank 1 to a third preset temperature.

In an example, the third preset temperature is 90-95 ℃, and the liquid in the cleaning tank 1 is a high-temperature liquid, so that a good disinfection effect is achieved.

S13, soaking the device to be cleaned 10 for a first preset time.

For example, the first preset time period may be determined according to the number of the instruments 10 to be cleaned.

S14, vacuumizing the cleaning tank 1;

in step S14, the vacuum extractor 2 may be activated such that the vacuum extractor 2 evacuates the cleaning bath 1. When the pressure in the cleaning tank 1 reaches a preset pressure, the vacuum-pumping device is closed.

S15, introducing gas into the cleaning tank 1 to boil the liquid in the cleaning tank 1 to sterilize the apparatus 10 to be cleaned.

In step S15, gas can be introduced into cleaning tank 1 through the gas return device, when air is injected into cleaning tank 1, the pressure in cleaning tank 1 suddenly rises, so that the liquid in cleaning tank 1 can be compressed into the lumen of instrument 10 to be cleaned, and then cleaning water 20 with high temperature can be fully contacted with the inside of the lumen, so that cleaning water 20 with high temperature can be contacted with the surface of instrument 10 to be cleaned, and can also be contacted with the lumen of instrument 10 to be cleaned, thereby improving the disinfection effect.

After the step S15 is completed, the steps S14-S15 may be repeatedly executed several times, or the steps S14-S15 may be repeatedly executed within a preset disinfection duration, so that multiple disinfection of the instrument 10 to be cleaned can be achieved, and the disinfection effect is further improved.

Optionally, after the sterilization process, the apparatus 10 to be cleaned may be further subjected to a drying process, specifically, the drying process includes: firstly, the cleaning tank 1 is vacuumized, then the liquid in the cleaning tank 1 is heated to a certain temperature, then the cleaning tank 1 is vacuumized, and the above operations are repeatedly performed to realize the drying treatment of the instrument 10 to be cleaned.

For example, when the cleaning apparatus provided in this embodiment is used for performing a sterilization process, the vacuum extractor 2 may be first started, so that the vacuum extractor 2 performs a vacuum process on the cleaning tank 1, as the vacuum degree in the cleaning tank 1 decreases, the liquid, moisture, and the like in the to-be-cleaned device 10 are extracted, and after a period of time, the vacuum extractor 2 is turned off, and the heating device 3 is started. When the gas in the cleaning tank 1 is heated, the vacuum degree in the cleaning tank 1 gradually increases along with the increase of the temperature, at this time, the vacuum device is started again, the cleaning tank 1 is vacuumized again, the moisture in the cleaning tank 1 is extracted, the above operations are repeatedly performed to thoroughly dry the appliance 10 to be cleaned, and then the first air return valve 43 or the second air return valve 44 is opened to inject air into the cleaning tank 1, so that the cleaning tank 1 returns to the atmospheric pressure.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A cleaning apparatus, comprising:

the cleaning tank comprises a cleaning tank (1), wherein a sealing door is installed at an opening of the cleaning tank (1);

the vacuumizing device (2) is communicated with the cleaning tank (1);

a heating device (3) arranged in the cleaning tank (1);

the air return device comprises an air return coil (41), a first air return pipe (42) and a first air return valve (43), wherein the air return coil (41) is arranged at the bottom of the cleaning tank (1), a plurality of air inlets (411) are formed in the air return coil (41), the first air return pipe (42) is communicated with the air return coil (41) and used for conveying air to the air return coil (41), and the first air return valve (43) is arranged on the first air return pipe (42) and used for controlling the on-off of the first air return pipe (42).

2. The cleaning equipment according to claim 1, wherein the air return device further comprises a second air return pipe (45) and a second air return valve (44), the second air return pipe (45) is connected to the top of the cleaning tank (1) and is used for conveying air into the cleaning tank (1), and the second air return valve (44) is installed on the second air return pipe (45) and is used for controlling the on-off of the second air return pipe (45).

3. The cleaning apparatus according to claim 2, further comprising a gas filter (5), wherein the first gas return pipe (42) is connected to the gas filter (5), and the second gas return pipe (45) is connected to the gas filter (5) and the cleaning tank (1).

4. The washing apparatus according to claim 1, characterized in that the heating means (3) comprise a plurality of heating pipes fixed to the bottom wall of the washing tank (1).

5. The cleaning apparatus according to claim 4, wherein the air return coil (41) comprises a main pipe portion and two connecting pipe portions communicated with the main pipe portion, the two connecting pipe portions are respectively fixed on the bottom wall of the cleaning tank (1), the two connecting pipe portions are respectively communicated with the first air return pipe (42), the air inlet hole (411) is formed in the main pipe portion, and the heating pipe is located below the main pipe portion.

6. The cleaning apparatus according to claim 5, wherein the aperture of the air intake hole (411) is gradually increased in a preset direction in which the inner wall of the main body pipe portion is directed to the outer wall.

7. The cleaning apparatus according to claim 1, wherein the air return coil (41) is fixed at the bottom of the cleaning tank (1), and the air return coil (41) is U-shaped, S-shaped or "return" shaped.

8. The cleaning apparatus according to claim 1, wherein the vacuum-pumping device (2) comprises a vacuum pump, a vacuum pipeline and a vacuum valve (21), one end of the vacuum pipe is connected to the vacuum pump, the other end of the vacuum pipe is connected to the top of the side wall of the cleaning tank (1), and the vacuum valve (21) is mounted on the vacuum pipe and is used for controlling the on-off of the vacuum pipe.

9. The cleaning apparatus according to claim 1, further comprising a pressure sensor (6) and a temperature sensor (7) respectively installed in the cleaning tank (1).

10. The cleaning apparatus according to claim 1, further comprising a drain pipe connected to a bottom wall of the cleaning tank (1), and a drain valve (40) mounted on the drain pipe.