CN114588294A - Hospital ward is with degassing unit that disinfects - Google Patents
Hospital ward is with degassing unit that disinfects Download PDFInfo
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- CN114588294A CN114588294A CN202210227447.7A CN202210227447A CN114588294A CN 114588294 A CN114588294 A CN 114588294A CN 202210227447 A CN202210227447 A CN 202210227447A CN 114588294 A CN114588294 A CN 114588294A
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- 238000007872 degassing Methods 0.000 title description 2
- 239000007788 liquid Substances 0.000 claims abstract description 196
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 113
- 230000008016 vaporization Effects 0.000 claims abstract description 109
- 238000009834 vaporization Methods 0.000 claims abstract description 108
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 101
- 238000011084 recovery Methods 0.000 claims abstract description 74
- 230000001954 sterilising effect Effects 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 12
- 238000004064 recycling Methods 0.000 claims description 12
- 238000009792 diffusion process Methods 0.000 claims description 7
- 230000000249 desinfective effect Effects 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 11
- 231100000614 poison Toxicity 0.000 abstract 1
- 230000007096 poisonous effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002316 fumigant Substances 0.000 description 2
- 238000003958 fumigation Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 108020004414 DNA Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
- A61L2/208—Hydrogen peroxide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/15—Biocide distribution means, e.g. nozzles, pumps, manifolds, fans, baffles, sprayers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/25—Rooms in buildings, passenger compartments
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention relates to a sterilization and disinfection device for hospital wards, belonging to the technical field of disinfection equipment, comprising a sterilization shell, wherein a liquid storage tank for storing hydrogen peroxide liquid is arranged at the bottom in the sterilization shell, and a vaporization generation mechanism is arranged at the inner side of the sterilization shell; a liquid supply component which supplies the liquid in the liquid storage tank to the inner side of the vaporization generation mechanism is arranged on the upper side of the liquid storage tank; the vaporization generating mechanism comprises a vertically arranged vaporization generating pipe, and a heating assembly is arranged on the outer side of the vaporization generating pipe; the upper end of the vaporization generating pipe is provided with a ventilator which exhausts air to the upper side, the upper side of the ventilator is provided with a disinfection cabin which can disinfect to the outer space, and the bottom of the vaporization generating pipe is provided with a residual liquid recovery mechanism which recovers residual liquid at the bottom of the vaporization generating pipe. Through adopting above-mentioned technical scheme, can realize the ward environment disinfection of hospital, and the disinfection process does not produce poisonous residue, improves ward disinfection safety.
Description
Technical Field
The invention belongs to the technical field of disinfection equipment, and particularly relates to a sterilization and disinfection device for a hospital ward.
Background
With the development of society and the continuous improvement of modern medical level, in hospitals, the environment in hospitals can be disinfected and sterilized regularly. Space disinfection is an important measure for preventing and controlling infection sources, preventing cross infection and ensuring personnel safety, and a public environment in a hospital is a concentrated area of susceptible people, is easy to generate cross infection and needs an advanced disinfection technology to provide safety guarantee.
In the prior art, the space sterilization mainly comprises ultraviolet irradiation, liquid disinfectant spraying, gas or vapor disinfectant fumigation and the like. Although the above methods can achieve disinfection and sterilization effects to a certain extent, the disinfection methods have defects, the disinfection effect of ultraviolet irradiation is greatly influenced by factors such as light source quality, irradiation distance, environment temperature and humidity, and the like, and the defects of weak penetrability, unstable disinfection effect, disinfection blind area, harm to human bodies and the like exist; the liquid spraying disinfection is only suitable for small space environment and object surface, and has the problems of limited application range, disinfection dead angle, uneven treatment effect and the like. Compared with the two modes, the gas fumigation has better diffusion shape, penetrability and use uniformity, and is one of the most effective modes for disinfecting the space and objects in the space.
In the prior art, the most original gaseous disinfection fumigants mainly comprise formaldehyde, ozone and gaseous chlorine dioxide, wherein the formaldehyde disinfection period is longer than 10 hours, the formaldehyde disinfection fumigant is high in irritation and has carcinogenic and teratogenic effects, side effects on personnel are large, and safety risks exist in frequent use, so that vaporized hydrogen peroxide is generally used for disinfection and sterilization in hospitals.
Hydrogen peroxide, as a strong oxidizing agent, can form free radical hydroxyl and active derivatives with strong oxidizing ability, and the sterilization mechanism can be mainly divided into two types: firstly, an outer layer protection structure of microorganisms is damaged, so that the permeability of a protection layer is changed, the osmotic pressure of cells is changed, and the microorganisms die due to the damage of an in-vivo and in-vitro balance system; secondly, the microorganism is killed by destroying substances such as enzyme, protein and DNA in the microorganism.
Vaporized Hydrogen Peroxide (VHP) sterilization is considered to be a desirable sterilization means among various space sterilization techniques. Compared with other sterilization modes, the vaporized hydrogen peroxide technology has the following advantages: the biological purification time is shorter, and the biological sterilization time is 30-90 minutes (total time of program cycle) according to the physical characteristics of the product to be treated; effective against a wider range of microorganisms; the method has the advantages of friendly user interface, stable process, easy maintenance of equipment and no toxic residue generated in biological sterilization circulation; all process stages can be controlled to ensure safety of operators, products and environment.
One way to achieve vaporized hydrogen peroxide sterilization in the prior art is to achieve flash evaporation by a normal-temperature high-pressure spraying method or by a high-temperature low-pressure method. In the process of vaporizing hydrogen peroxide by the two modes, a certain amount of liquid residue can be generated at the bottom, after the long-time working process, the liquid at the bottom can form a mixed liquid of water and hydrogen peroxide, and finally the part of liquid can be discharged without utilizing the liquid to disinfect the environment, so that a certain amount of hydrogen peroxide liquid is wasted.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a sterilization and disinfection device for hospital wards, which can realize the sterilization of the environment of the hospital wards, does not generate toxic residues in the disinfection process, and improves the disinfection safety of the wards.
In order to achieve the above object, the present invention provides a technical solution as follows:
a sterilization and disinfection device for hospital wards comprises a sterilization shell, wherein a liquid storage tank for storing hydrogen peroxide liquid is arranged at the bottom of the sterilization shell, and a vaporization generation mechanism is arranged at the inner side of the sterilization shell; a liquid supply component which supplies the liquid in the liquid storage tank to the inner side of the vaporization generation mechanism is arranged on the upper side of the liquid storage tank; the vaporization generating mechanism comprises a vertically arranged vaporization generating pipe, and a heating assembly is arranged on the outer side of the vaporization generating pipe; the upper end of the vaporization generating pipe is provided with a ventilator which exhausts air to the upper side, the upper side of the ventilator is provided with a disinfection bin which can disinfect towards the outer space, the ventilator provides negative pressure for the vaporization generating pipe, and simultaneously the vaporized hydrogen peroxide is discharged into the disinfection bin; and a residual liquid recovery mechanism for recovering residual liquid at the bottom of the vaporization generating pipe is arranged at the bottom of the vaporization generating pipe.
Preferably, the liquid supply assembly comprises a water pump fixed in the sterilization shell, a liquid inlet pipe is arranged at a liquid inlet end of the water pump, and the other end of the liquid inlet pipe is positioned at the bottom of the liquid storage tank; the middle part of the liquid inlet pipe is connected with the residual liquid recovery mechanism; the liquid outlet end of the water pump is provided with a liquid outlet pipe, the tail end of the liquid outlet pipe is positioned on the inner side of the vaporization generating pipe and is connected with an atomization nozzle, and a first control valve is arranged on the liquid outlet pipe.
Preferably, the residual liquid recovery mechanism comprises a recovery bin which is positioned at the lower side of the vaporization generating pipe; an inclined plane plate is formed at one end of the bottom of the vaporization generating pipe, a liquid outlet is formed at the lower end of the inclined plane plate, and the liquid outlet is connected with the recovery bin; a liquid level detection assembly is arranged in the recovery bin, and a recovery assembly for refluxing residual liquid at the bottom of the recovery bin is arranged between the recovery bin and the liquid inlet pipe; a secondary vaporization component for carrying out secondary vaporization on the residual liquid is arranged at the lower side of the recovery bin; the steam outlet end of the secondary vaporization assembly is connected with the vaporization generating pipe; the liquid level detection assembly controls the recovery assembly or the secondary vaporization assembly to work.
Preferably, the recovery assembly comprises a venturi tube, the liquid inlet pipe comprises a first liquid inlet section and a second liquid inlet section, the upper end of the first liquid inlet section is connected with the water pump, and the lower end of the second liquid inlet section is connected with the liquid storage tank; the venturi tube comprises a cylindrical tube section connected with the second liquid inlet section, a conical diffusion tube section connected with the first liquid inlet section, and a cylindrical throat tube section connected between the cylindrical tube section and the diffusion tube section; a residual liquid recovery pipe is connected to the cylindrical throat pipe section, and the other end of the residual liquid recovery pipe is positioned at the bottom of the recovery bin; and a second control valve is arranged on the residual liquid recovery pipe, and when the liquid level detection assembly detects that the liquid level in the recovery bin is lower than a set value and is greater than 0, the second control valve is opened.
Preferably, the secondary vaporization assembly comprises a sealed bin arranged at the bottom of the recovery bin, a secondary feeding pipe is arranged between the sealed bin and the recovery bin, and a third control valve is arranged on the secondary feeding pipe; a vacuumizing device is arranged on one side of the sealed bin; a heating block is arranged on the vertical side wall of the sealed bin, a communicating pipe is arranged between the top of the sealed bin and the bottom of the vaporization generating pipe, and a fourth control valve and an exhaust fan are arranged on the communicating pipe; the bottom of the sealed cabin is provided with a drain pipe, and the other end of the drain pipe is connected with a ball valve and is positioned outside the sterilization shell.
Preferably, the upper end surface of the communicating pipe is higher than the higher end of the inclined plane plate.
Preferably, a steam inlet is formed in the lower side of the disinfection bin, and the steam inlet and the steam outlet end of the ventilator are connected with a wind shield; a steam outlet is formed in the vertical side wall of the disinfection cabin, and a blower assembly is arranged on the inner side of the disinfection cabin.
Preferably, the air blowing assembly comprises a vertically arranged power shaft, a plurality of supporting frames are arranged on the circumference of the power shaft at equal angular intervals, air baffles forming a certain included angle with the plane where the supporting frames are located are arranged in the supporting frames, and a plurality of air baffles are arranged at intervals; the lower end of the power shaft is positioned on the inner side of the sterilization shell and is connected with a driving motor.
Preferably, a power supply is provided inside the sterilizing case.
The invention provides a sterilization and disinfection device for hospital wards, which is characterized in that a sterilization shell, a vaporization generation mechanism and a blast component are arranged on the inner side of the sterilization shell, so that the wards can be disinfected through vaporization of hydrogen peroxide during normal work, and compared with the traditional disinfection mode, the sterilization and disinfection device is safer and has better disinfection effect. In the disinfection process, through the recovery subassembly and the secondary vaporization subassembly that set up, can carry out recycle to the hydrogen peroxide liquid for complete vaporization, make it carry out the secondary vaporization, very big improvement the utilization ratio of hydrogen peroxide solution.
Drawings
FIG. 1 is a schematic structural view of a sterilization and disinfection device for hospital wards according to the present invention;
FIG. 2 is a schematic view of a mechanism for recovering a residual liquid from a sterilization and disinfection apparatus for hospital wards according to the present invention;
FIG. 3 is a schematic view of a protruded recycling assembly of the sterilization and disinfection apparatus for hospital wards in accordance with the present invention;
fig. 4 is a schematic view of a protruded wind shield in the sterilization and disinfection device for hospital wards of the present invention.
Reference numbers in the figures:
100. a sterilizing housing;
200. a liquid storage tank; 210. a liquid feeding pipe;
300. a vaporization generating mechanism; 310. a vaporization generating tube; 311. an inclined plane plate; 312. a liquid discharge port; 320. a heating assembly; 330. a ventilator;
400. a liquid supply assembly; 410. a water pump; 420. a liquid inlet pipe; 421. a first liquid inlet section; 422. a second liquid inlet section; 430. a liquid outlet pipe; 431. a first control valve; 440. an atomizing spray head;
500. a disinfection bin; 510. a steam inlet; 520. a windshield; 530. a steam outlet;
600. a raffinate recovery mechanism; 610. a recovery bin; 620. a liquid level detection assembly; 630. a recovery assembly; 631. a venturi tube; 631a, a cylindrical tube section; 631b, diffuser section; 631c, a cylindrical throat section; 632. a raffinate recovery pipe; 633. a second control valve; 640. a secondary vaporization assembly; 641. sealing the bin; 642. feeding a material for the second time; 643. a third control valve; 644. a vacuum pumping device; 645. a heating block; 646. a communicating pipe; 647. a fourth control valve; 648. an exhaust fan; 649. a drain pipe; 649a, ball valve;
700. a blower assembly; 710. a power shaft; 720. a support frame; 730. a wind deflector; 740. a drive motor;
800. a power source.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
The invention provides a sterilization and disinfection device for hospital wards, which is shown in the figures 1-4 and comprises a sterilization shell 100, wherein a liquid storage tank 200 for storing hydrogen peroxide liquid is arranged at the bottom in the sterilization shell 100, and a vaporization generation mechanism 300 is arranged at the inner side of the sterilization shell 100; a liquid supply assembly 400 for supplying the liquid in the liquid storage tank 200 to the inner side of the vaporization generation mechanism 300 is arranged on the upper side of the liquid storage tank 200; during operation, the hydrogen peroxide liquid is added into the liquid storage tank 200, the liquid supply assembly 400 supplies the hydrogen peroxide liquid to the inner side of the vaporization generating mechanism 300 for vaporization, and the vaporized hydrogen peroxide passes through the sterilization shell 100 and then sterilizes the outside.
The vaporization generator comprises a vertically arranged vaporization generating pipe 310, and a heating component 320 is arranged outside the vaporization generating pipe 310; the upper end of the vaporization generating pipe 310 is provided with a ventilator 330 exhausting air to the upper side, the upper side of the ventilator 330 is provided with a disinfection bin 500 capable of disinfecting the outer space, the ventilator 330 provides negative pressure in the vaporization generating pipe 310 and simultaneously discharges vaporized hydrogen peroxide into the disinfection bin 500; the bottom of the vaporization generation tube 310 is provided with a residual liquid recovery mechanism 600 for recovering the residual liquid at the bottom of the vaporization generation tube 310. When the vaporized hydrogen peroxide is formed, firstly, the ventilator 330 works to form a certain degree of negative pressure on the inner side of the vaporization generating tube 310, meanwhile, the heating assembly 320 heats the inner side of the vaporization generating tube 310, then the liquid in the liquid storage tank 200 is pumped into the vaporization generating tube 310 through the liquid supply assembly 400, flash evaporation is formed in the vaporization generating tube 310, a certain amount of vaporized hydrogen peroxide is formed, and the vaporized hydrogen peroxide enters the disinfection bin 500 under the action of the ventilator 330 and enters the external space through the disinfection bin 500 for disinfection.
Wherein, the liquid supply assembly 400 comprises a water pump 410 fixed in the sterilization shell 100, a liquid inlet pipe 420 is arranged at the liquid inlet end of the water pump 410, and the other end of the liquid inlet pipe 420 is positioned at the bottom of the liquid storage tank 200; the middle part of the liquid inlet pipe 420 is connected with a residual liquid recovery mechanism 600; the liquid outlet end of the water pump 410 is provided with a liquid outlet pipe 430, the end of the liquid outlet pipe 430 is positioned at the inner side of the vaporization generating pipe 310 and is connected with an atomizing nozzle 440, and the liquid outlet pipe 430 is provided with a first control valve 431. During operation, the first control valve 431 is opened to supply hydrogen peroxide liquid into the vaporization generating pipe 310, and the atomization nozzle 440 is arranged to increase the vaporization degree of hydrogen peroxide to a certain extent, so as to increase the utilization rate of hydrogen peroxide.
The heating assembly 320 includes an electric heating tube wound on the outer side of the vaporization generating tube 310, and the hydrogen peroxide liquid on the inner side is heated by the electric heating tube to be rapidly vaporized at a higher temperature.
In the use process, a part of the hydrogen peroxide liquid can not be completely vaporized, and then is collected to the bottom of the vaporization generating pipe 310 to form a residual liquid, and the unvaporized hydrogen peroxide liquid is recycled through the arranged residual liquid recycling mechanism 600.
Specifically, the raffinate recovery mechanism 600 includes a recovery tank 610, and the recovery tank 610 is located on the lower side of the vaporization generating tube 310. An inclined plane plate 311 is formed at one end of the bottom of the vaporization generating tube 310, one end of the inclined plane plate 311 is higher, the other end is lower, a liquid outlet 312 is formed at the lower end, and the liquid outlet 312 is connected with the recovery bin 610. And the hydrogen peroxide may be transferred from the vaporization generating pipe 310 into the recovery bin 610.
A liquid level detection assembly 620 is arranged in the recovery bin 610, and the liquid level detection assembly 620 can monitor the liquid level in the recovery bin 610 in real time and specifically comprises a plurality of liquid level sensors.
A recovery component 630 for refluxing the residual liquid at the bottom of the recovery bin 610 is arranged between the recovery bin 610 and the liquid inlet pipe 420; a secondary vaporization assembly 640 for carrying out secondary vaporization on the residual liquid is arranged at the lower side of the recovery bin 610; the steam outlet end of the secondary vaporization assembly 640 is connected with the vaporization generating pipe 310; the liquid level detection assembly 620 controls the operation of the recovery assembly 630 or the secondary vaporization assembly 640. Specifically, when the liquid level detection assembly 620 detects that the liquid level in the recycling bin 610 is low, the liquid level can be recycled through the residual liquid recycling mechanism 600, and when the liquid level in the recycling bin 610 is high, it indicates that the vaporization effect in the vaporization generating pipe 310 is relatively poor, and the secondary vaporization of the hydrogen peroxide liquid needs to be performed through the secondary vaporization assembly 640.
The recycling assembly 630 comprises a venturi tube 631, the liquid inlet pipe 420 comprises a first liquid inlet section 421 and a second liquid inlet section 422, the upper end of the first liquid inlet section 421 is connected with the water pump 410, and the lower end of the second liquid inlet section 422 is connected with the liquid storage tank 200; the venturi tube 631 comprises a cylindrical pipe section 631a connected to the second liquid inlet section 422, a conical diffusion pipe section 631b connected to the first liquid inlet section 421, and a cylindrical throat pipe section 631c connected between the cylindrical pipe section 631a and the diffusion pipe section 631 b; wherein the diameter of the cylindrical throat section 631c is smaller than the diameter of the diffuser section 631b and the circumferential section.
A residual liquid recovery pipe 632 is connected to the cylindrical throat section 631c, and the other end of the residual liquid recovery pipe 632 is positioned at the bottom of the recovery bin 610; when the water pump 410 controls the liquid inlet pipe 420 to feed liquid, the backflow of the residual liquid at the bottom of the recovery bin 610 can be realized through the connection of the venturi tube 631 and the residual liquid recovery pipe 632, so that the residual liquid is mixed with the hydrogen peroxide liquid in the liquid inlet pipe 420 and is vaporized again.
A second control valve 633 is arranged on the raffinate recycling pipe 632, when the liquid level detection component 620 detects that the liquid level in the recycling bin 610 is lower than the set value and is greater than 0, the second control valve 633 is opened, otherwise, the second control valve 633 is closed. Through the second control valve 633 who sets up, can control raffinate recovery pipe 632's use or close, when there is not the raffinate, can close it and avoid its influence peroxide apparatus liquid feed liquor, simultaneously, for better make peroxide apparatus liquid atomize in atomizer 440, also can open it for mix some gas in feed liquor pipe 420, then improve its atomizing, vaporization effect.
The secondary vaporization assembly 640 comprises a sealed bin 641 arranged at the bottom of the recovery bin 610, a secondary feeding pipe 642 is arranged between the sealed bin 641 and the recovery bin 610, and a third control valve 643 is arranged on the secondary feeding pipe 642; when the liquid level in the recovery bin 610 is higher than the set condition, the third control valve 643 is opened, and at this time, the hydrogen peroxide liquid in the recovery bin 610 can enter the sealed bin 641 for secondary vaporization.
A vacuum pumping device 644 is arranged at one side of the sealed cabin 641; a heating block 645 is provided on a vertical sidewall of the hermetic container 641, a communication pipe 646 is provided between the top of the hermetic container 641 and the bottom of the vaporization generating tube 310, and a fourth control valve 647 is provided on the communication pipe 646. Meanwhile, an exhaust fan 648 is provided in the communication pipe 646, and the exhaust fan 648 can blow the gas in the sealed container 641 into the vaporization generation pipe 310.
When the secondary vaporization is not needed, the third control valve 643 and the fourth control valve 647 are kept in a closed state, at this time, the inside of the sealed cabin 641 is a sealed environment, the sealed cavity can be vacuumized by the vacuumizing device 644, so that the inside of the sealed cabin is kept at a lower pressure value, when the vaporization is needed, the heating block 645 is controlled to heat, so that the temperature value in the sealed cabin 641 is relatively higher and higher than the temperature value in the vaporization generating pipe 310, then the third control valve 643 is controlled to be opened, the hydrogen peroxide liquid in the recycling cabin 610 enters the sealed cabin 641 under the action of atmospheric pressure and gravity, the hydrogen peroxide liquid is flashed in a negative pressure and high temperature environment, then the vaporized hydrogen peroxide is pumped into the vaporization generating pipe 310 by the exhaust fan 648, and simultaneously the vaporized hydrogen peroxide forms an upward airflow when entering the vaporization generating pipe 310 by the exhaust fan 648, providing an upward pushing force into the vaporization generating tubes 310 enables the vaporized hydrogen peroxide to rapidly pass through the sterilization chamber 500 for sterilization.
Further, in order to discharge the unvaporized water in the sealed cabin 641, a water discharge pipe 649 is provided at the bottom of the sealed cabin 641, and a ball valve 649a is connected to the other end of the water discharge pipe 649 and is located outside the sterilization case 100.
The upper end surface of the communication pipe 646 is higher than the higher end of the inclined plane plate 311. In use, unvaporized peroxide drips onto the ramp plate 311 and can enter the recovery bin 610.
An air inlet 510 is formed in the lower side of the sterilizing chamber 500, a wind shield 520 is connected to the air inlet 510 and the air outlet of the ventilator 330, and the ventilator 330 and the sterilizing chamber 500 are connected through the connection of the wind shield 520.
A steam outlet 530 is formed on a vertical sidewall of the sterilizing compartment 500, and a blower assembly 700 is disposed inside the sterilizing compartment 500. When the vaporized hydrogen peroxide enters the sterilization chamber 500, it can be rapidly emitted to the outside of the sterilization chamber 500 by the blower assembly 700.
The blowing assembly 700 comprises a power shaft 710 which is vertically arranged, a plurality of supporting frames 720 are arranged on the circumference of the power shaft 710 at equal angular intervals, wind shields 730 which form a certain included angle with the plane where the supporting frames 720 are arranged in the supporting frames 720, and a plurality of wind shields 730 are arranged at intervals; the lower end of the power shaft 710 is located inside the sterilizing case 100, and is connected to a driving motor 740. During operation, the driving motor 740 can drive the power shaft 710 to rotate, the power shaft 710 can control the plurality of wind shields 730 to rotate in the rotating process, outward wind can be formed in a certain range through the plurality of wind shields 730 arranged at intervals, and meanwhile, the flow of air flow in the disinfection bin 500 can be controlled in a certain range, so that vaporized hydrogen peroxide can be uniformly diffused to the outside for disinfection.
A power supply 800 is provided inside the sterilization case 100. The power supply 800 can drive each electrical appliance to work.
It should be noted that a liquid feeding pipe 210 is provided on the liquid storage tank 200, and hydrogen peroxide liquid can be added to the liquid feeding pipe 210.
When the device is used, firstly, hydrogen peroxide is added into the liquid storage tank 200 through the liquid adding pipe 210, the heating assembly 320 is controlled to heat the vaporization generating pipe 310, so that a set temperature value is kept in the vaporization generating pipe 310, and meanwhile, the ventilator 330 is controlled to work, so that a certain negative pressure is kept inside the vaporization generating pipe 310. The hydrogen peroxide liquid is then supplied to the vaporization generating tubes 310 through the liquid supply assembly 400, and when entering the vaporization generating tubes 310, the liquid is first atomized and then flashed, and simultaneously enters the sterilization chamber 500 under the action of the ventilator 330. The air blower assembly 700 is capable of rapidly discharging vaporized hydrogen peroxide to the space outside the sterilization chamber 500 to rapidly sterilize the space outside.
When it is detected that unvaporized hydrogen peroxide liquid enters the recovery bin 610 and when it is detected that the hydrogen peroxide residual liquid in the recovery bin 610 is lower than the set volume, the second control valve 633 is controlled to be opened, and at this time, in the process of pumping the solution in the liquid storage tank 200 by the water pump 410, the residual liquid in the recovery bin 610 can be synchronously pumped out through the action of the venturi tube 631 to be recovered and vaporized again. When detecting that the hydrogen peroxide solution in the recycling bin 610 is relatively large, the sealed bin 641 is vacuumized by the vacuumizing device 644, and the heating block 645 is controlled to heat the sealed bin 641, so that the inside of the sealed bin 641 is a negative-pressure and high-temperature environment. The third control valve 643 is opened to allow the hydrogen peroxide solution in the recovery bin 610 to enter the sealed bin 641, and a second flash evaporation is performed simultaneously with the entrance of the third control valve 643, and then the exhaust fan 648 is controlled to rapidly extract the hydrogen peroxide gas in the sealed bin 641. It should be noted that, after the residual liquid in the recovery bin 610 enters the sealed bin 641 each time, the third control valve 643 is closed, and vacuum is pumped again, so that it is ensured that negative pressure flash evaporation can be performed on the residual liquid each time, and further, the vaporization is more complete.
The invention provides a sterilization and disinfection device for hospital wards, which is characterized in that a sterilization shell 100, a vaporization generation mechanism 300 and a blowing component 700 are arranged on the inner side of the sterilization shell 100, so that the hospital wards can be disinfected through vaporization of hydrogen peroxide during normal work, and compared with the traditional disinfection mode, the sterilization and disinfection device is safer and has better disinfection effect. In the disinfection process, through the recovery assembly 630 and the secondary vaporization assembly 640 that set up, can carry out recycle for the hydrogen peroxide liquid of complete vaporization, make it carry out the secondary vaporization, very big improvement the utilization ratio of hydrogen peroxide solution.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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 should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and can be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, and communicating between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A sterilization and disinfection device for hospital wards is characterized by comprising a sterilization shell (100), wherein a liquid storage tank (200) for storing hydrogen peroxide liquid is arranged at the bottom of the sterilization shell (100) in the sterilization shell, and a vaporization generation mechanism (300) is arranged at the inner side of the sterilization shell (100);
a liquid supply component (400) which supplies the liquid in the liquid storage tank (200) to the inner side of the vaporization generation mechanism (300) is arranged on the upper side of the liquid storage tank (200);
the vaporization generating mechanism (300) comprises a vertically arranged vaporization generating pipe (310), and a heating assembly (320) is arranged on the outer side of the vaporization generating pipe (310);
the upper end of the vaporization generating pipe (310) is provided with a ventilator (330) exhausting air to the upper side, the upper side of the ventilator (330) is provided with a disinfection bin (500) capable of disinfecting the outer space, the ventilator (330) provides negative pressure in the vaporization generating pipe (310) and discharges the vaporized hydrogen peroxide into the disinfection bin (500);
and a residual liquid recovery mechanism (600) for recovering residual liquid at the bottom of the vaporization generating pipe (310) is arranged at the bottom of the vaporization generating pipe (310).
2. The sterilization and disinfection device for hospital wards according to claim 1, wherein said liquid supply assembly (400) comprises a water pump (410) fixed in said sterilization housing (100), a liquid inlet pipe (420) is arranged at the liquid inlet end of said water pump (410), and the other end of said liquid inlet pipe (420) is located at the bottom of said liquid storage tank (200); the middle part of the liquid inlet pipe (420) is connected with the residual liquid recovery mechanism (600);
a liquid outlet pipe (430) is arranged at the liquid outlet end of the water pump (410), the tail end of the liquid outlet pipe (430) is positioned on the inner side of the vaporization generating pipe (310) and is connected with an atomizing nozzle (440), and a first control valve (431) is arranged on the liquid outlet pipe (430).
3. The sterilization and disinfection apparatus for hospital ward according to claim 2, wherein said residual liquid recovery means (600) comprises a recovery bin (610), said recovery bin (610) being located at the lower side of said vaporization generating pipe (310);
an inclined plane plate (311) in an inclined shape is formed at one end of the bottom of the vaporization generating pipe (310), a liquid outlet (312) is formed at the lower end of the inclined plane plate (311), and the liquid outlet (312) is connected with the recovery bin (610);
a liquid level detection component (620) is arranged in the recovery bin (610),
a recovery component (630) for refluxing the residual liquid at the bottom of the recovery bin (610) is arranged between the recovery bin (610) and the liquid inlet pipe (420);
a secondary vaporization component (640) for carrying out secondary vaporization on the residual liquid is arranged at the lower side of the recovery bin (610); the steam outlet end of the secondary vaporization assembly (640) is connected with the vaporization generating pipe (310);
the liquid level detection assembly (620) controls the recovery assembly (630) or the secondary vaporization assembly (640) to work.
4. The sterilization and disinfection device for hospital wards as claimed in claim 2, wherein said recovery component (630) comprises a venturi tube (631), said liquid inlet pipe (420) comprises a first liquid inlet section (421) and a second liquid inlet section (422), the upper end of said first liquid inlet section (421) is connected to said water pump (410), the lower end of said second liquid inlet section (422) is connected to said liquid storage tank (200);
the venturi tube (631) comprises a cylindrical pipe section (631a) connected with the second liquid inlet section (422), a conical diffusion pipe section (631b) connected with the first liquid inlet section (421), and a cylindrical throat pipe section (631c) connected between the cylindrical pipe section (631a) and the diffusion pipe section (631 b);
a residual liquid recovery pipe (632) is connected to the cylindrical throat pipe section (631c), and the other end of the residual liquid recovery pipe (632) is positioned at the bottom of the recovery bin (610);
and a second control valve (633) is arranged on the residual liquid recycling pipe (632), and when the liquid level detection assembly (620) detects that the liquid level in the recycling bin (610) is lower than a set value and is greater than 0, the second control valve (633) is opened.
5. The sterilization and disinfection apparatus for hospital ward according to claim 3, wherein said secondary vaporization unit (640) comprises a sealed bin (641) disposed at the bottom of said recovery bin (610), a secondary feeding pipe (642) is disposed between said sealed bin (641) and said recovery bin (610), and a third control valve (643) is disposed on said secondary feeding pipe (642);
a vacuumizing device (644) is arranged on one side of the sealed bin (641);
a heating block (645) is arranged on the vertical side wall of the sealed cabin (641), a communicating pipe (646) is arranged between the top of the sealed cabin (641) and the bottom of the vaporization generating pipe (310), and a fourth control valve (647) and an exhaust fan (648) are arranged on the communicating pipe (646);
the bottom of the sealed cabin (641) is provided with a drain pipe (649), and the other end of the drain pipe (649) is connected with a ball valve (649a) and is positioned on the outer side of the sterilization shell (100).
6. The sterilization and disinfection device for hospital ward according to claim 5, wherein the upper end surface of said communicating tube (646) is higher than the higher end of said inclined plate (311).
7. The sterilization and disinfection device for hospital wards as claimed in claim 1, wherein a steam inlet (510) is opened at the lower side of the disinfection bin (500), and a wind shield (520) is connected to the steam inlet (510) and the steam outlet of the ventilator (330);
a steam outlet (530) is formed in the vertical side wall of the disinfection bin (500), and a blower assembly (700) is arranged on the inner side of the disinfection bin (500).
8. The sterilization and disinfection device for the hospital ward according to claim 7, wherein the blower assembly (700) comprises a vertically arranged power shaft (710), a plurality of supporting frames (720) are arranged on the circumference of the power shaft (710) at equal angular intervals, wind shields (730) forming a certain included angle with the plane where the supporting frames (720) are arranged in the supporting frames (720), and a plurality of wind shields (730) are arranged at intervals;
the lower end of the power shaft (710) is positioned at the inner side of the sterilization shell (100) and is connected with a driving motor (740).
9. The sterilization and disinfection apparatus for hospital wards according to claim 1, characterized in that a power source (800) is provided inside said sterilization case (100).
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| CN202210227447.7A CN114588294B (en) | 2022-03-08 | 2022-03-08 | Sterilizing device for hospital ward |
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| CN202210227447.7A CN114588294B (en) | 2022-03-08 | 2022-03-08 | Sterilizing device for hospital ward |
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| CN114588294B (en) | 2023-12-01 |
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