CN113390149A - Hospital is with tasteless disinfection breather - Google Patents
Hospital is with tasteless disinfection breather Download PDFInfo
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- CN113390149A CN113390149A CN202110674452.8A CN202110674452A CN113390149A CN 113390149 A CN113390149 A CN 113390149A CN 202110674452 A CN202110674452 A CN 202110674452A CN 113390149 A CN113390149 A CN 113390149A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/003—Ventilation in combination with air cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
- F24F8/133—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering by direct contact with liquid, e.g. with sprayed liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a tasteless disinfection and air exchange device for hospitals, which comprises a casing, an air inlet mechanism and an air draft mechanism, wherein the air inlet mechanism and the air draft mechanism are sequentially arranged in the casing from top to bottom, the air inlet mechanism utilizes the magnetocaloric effect to disinfect and sterilize air, the air inlet mechanism utilizes wind energy to spray water mist into the air to remove dust, the air draft mechanism and the air inlet mechanism are mutually matched to exchange air for hospitals, the air draft mechanism utilizes the magnetocaloric effect to disinfect and sterilize the extracted air, and the air draft mechanism heats and sterilizes the air extracted by the air inlet mechanism. Preventing the spread of viruses, bacteria, etc. in hospitals into the outside air.
Description
Technical Field
The invention relates to the technical field of ventilation, in particular to a tasteless disinfecting and ventilating device for hospitals.
Background
The hospital is a special place integrating patients, susceptible people, accompanying family members and medical care personnel, has large outpatient quantity, strong mobility of personnel, multiple function partitions, complex management and high energy consumption, and is one of the distinctive characteristics of the hospital different from other common public buildings.
The air interchanger is needed to be used in a hospital, the air interchanger only introduces the outside air into a room and arranges a coarse and shallow filter screen at an inlet, the indoor foul air is directly discharged to the outside, the filter screen continuously accumulates dust in the using process, the filter screen needs to be replaced or cleaned at a high frequency, and the air interchanger is very troublesome. Present breather not only dismantles the trouble, is not convenient for clear up it, very big increase the work load that the staff cleared up moreover.
Sickrooms in hospitals, particularly sickrooms in the department of infectious diseases, have high germ content and relatively closed environment, and if air with infection sources cannot be discharged out of the sickrooms in time and injected with air without viruses and bacteria, infection and cross infection of patients and workers are easily caused; and the air with infection sources is not treated timely or thoroughly when being discharged, and can pollute the surrounding environment, thus posing a threat to the health and safety of people around.
Therefore, a hospital needs to solve the above problems with odorless sterilizing ventilation devices.
Disclosure of Invention
The invention aims to provide a tasteless disinfecting and ventilating device for hospitals, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a hospital is with tasteless disinfection breather, this tasteless disinfection breather includes cover shell, air inlet mechanism, updraft ventilator, from last air inlet mechanism, the updraft ventilator that has set gradually under to in the cover shell, air inlet mechanism utilizes the magnetocaloric effect to carry out disinfection and isolation to the air, and air inlet mechanism utilizes wind energy to spray water smoke in to the air and removes dust, updraft ventilator and air inlet mechanism mutually support and take a breath to the hospital, and updraft ventilator utilizes the magnetocaloric effect to carry out disinfection and isolation to the air of extraction, and updraft ventilator constructs the air of air inlet mechanism extraction and heats the sterilization. The shell casing provides support and protection for air inlet mechanism, the installation of updraft ventilator mechanism, and air inlet mechanism and updraft ventilator mechanism mutually support and take a breath to the hospital, and air inlet mechanism utilizes wind energy and the air of magnetic heat effect to external extraction to remove dust, disinfect, thereby reach tasteless disinfection effect, and updraft ventilator mechanism utilizes the air of magnetic heat effect to extract in the hospital to disinfect, prevents that virus, bacterium etc. in the hospital from diffusing in the external air.
According to a preferable technical scheme, the air inlet mechanism comprises an air inlet machine, a magnetic heating assembly and a water circulation assembly, the air inlet machine is arranged above the shell, the magnetic heating assembly is connected with an air inlet machine pipeline, and the water circulation assembly is fixed with the magnetic heating assembly; the air draft mechanism comprises an air draft fan, a heat transfer pipe and a heating assembly, the air draft fan is fixed with the casing, the heat transfer pipe is sleeved on the magnetic heating assembly, one end of the heat transfer pipe is fixed with the air draft fan, the other end of the heat transfer pipe is fixed with the heating assembly, and the other end of the heating assembly is connected with a hospital ventilation pipeline. The air inlet machine provides the air source for the hospital takes a breath, inlay the magnetism subassembly and heat the air, carry out high temperature killing to virus, bacterium in the air, the water cycle subassembly makes miscellaneous old and air separation such as dust, granule in the air through the water spray, the air in the air exhauster extraction hospital, the heat transfer of air after the heat-transfer pipe will heating the subassembly on the collection tuber pipe, heating element heats sterilization, the virus killing to the air in the hospital.
According to a preferable technical scheme, the magnetic thermal component comprises an air collecting pipe, a dust collecting groove and a magnetic thermal ball, the upper end of the air collecting pipe is fixed with the air inlet machine, one side of the upper end of the air collecting pipe is fixed with one end of the water circulation component, the lower end of the air collecting pipe is fixed with the dust collecting groove, one side of the outer end face of the dust collecting groove is fixed with the magnetic thermal ball, and the lower end of the dust collecting groove is fixed with the other end of the water circulation component. The air collecting pipe transmits air to the air inlet machine for concentrated transmission, the integrated tank collects liquid after dust fall of the water circulation assembly, the magnetic hot ball takes the air transmitted by the air inlet machine as rotation power and generates heat through friction, and water, bacteria, viruses and the like in the air are killed.
As preferred technical scheme, the inside upper end of collection tuber pipe is provided with the compression subassembly, the compression subassembly includes four at least groups of gasbags, compression plate, two sets of backup pads at least, and four groups the gasbag sets up on collection tuber pipe inner wall, and four groups's gasbags pass through the pipeline intercommunication, and the gasbag is fixed with the one end of water circulation subassembly, and the compression plate setting is in the outside of gasbag, and the one end of compression plate is fixed with the inner wall of collection tuber pipe, and is two sets of be provided with the axis of rotation in the backup pad, eccentric wheel, helical fan blade have set gradually under to from last in the axis of rotation, the eccentric wheel is located the top of two sets of backup pads, helical fan blade is located between two sets of backup pads, the eccentric wheel rotates with the compression plate and is connected. The air volume that makes the upper water tank in the compression subassembly infuses the air to make the upper water tank increases, thereby make the atmospheric pressure increase in the upper water tank, the gasbag is extracted outside air and is transmitted the upper water tank with the air through the pipeline after being compressed, the compression board compresses the gasbag after receiving the extrusion force of eccentric wheel, the even atress of gasbag during the compression board, the backup pad provides the support for the installation of axis of rotation, helical fan blade drives the axis of rotation and rotates under the drive of the air current that the air inlet machine infuses, the axis of rotation drives the eccentric wheel through rotating and rotates.
According to the preferable technical scheme, the magnetic heating ball comprises an embedded magnetic shell and an embedded magnetic rotating ball, an air outlet pipe and an air inlet pipe are respectively arranged on the upper side and the lower side of the embedded magnetic shell, the other end of the air inlet pipe is fixed with a dust collecting groove, the other end of the air outlet pipe is connected with a hospital ventilation pipeline, a plurality of groups of embedded magnetic rotating plates are arranged on the outer surface of the embedded magnetic rotating ball and are rotatably connected with the embedded magnetic shell, the inner surface of the embedded magnetic shell is an embedded magnetic end face, and the end faces of the embedded magnetic rotating plates, which are in contact with the embedded magnetic shell, are embedded magnetic end faces. Inlay the magnetism shell and provide the support for the installation of inlaying magnetism rotating ball, the air pipe after disinfecting and disinfecting carries out hospital's air pipe and provides the passageway for the air of collection tuber pipe in to inlaying magnetism shell instillation air, inlay magnetism rotating ball and provide the support for the installation of inlaying magnetism rotating plate, it drives in inlaying magnetism shell and inlays magnetism rotating ball and rotate to inlay magnetism rotating plate under the drive of the air current of collection tuber pipe instillation, it generates heat through magnetic heat effect and inlaying magnetism shell internal surface friction to inlay magnetism rotating plate.
According to the preferable technical scheme, a support frame is arranged on the lower end face in the casing, and the magnetocaloric ball is fixed to the upper end face of the support frame; the water circulation assembly comprises an upper water tank and a lower water tank, the upper water tank is arranged on the casing and is connected with an air bag pipeline, the upper water tank is connected with an air collecting pipe pipeline, the lower water tank is arranged below the support frame and is connected with a pipeline at the lower end of the dust collecting groove, a water pump is arranged on the upper water tank, and the upper water tank is connected with the lower water tank pipeline. The support frame provides the support for the installation of magnetocaloric ball, and the gasbag pours air into the upper water tank through the pipeline, makes the atmospheric pressure of upper water tank strengthen to make the upper water tank pass through the pipeline and to the transmission water in the collection tuber pipe and through the spray pipe with water injection in the collection tuber pipe, the muddy water that has miscellaneous age in the dust collecting tank is carried out centralized processing to the lower water tank, and provides the clear water after the sediment for the upper water tank, the clear water in the lower water tank is drawed to the water pump, along with the decline of the water level in the lower water tank, makes the air in the lower water tank become thin, makes the atmospheric pressure in the lower water tank become the low pressure, thereby provides the basis for muddy water carries out the lower water tank.
As a preferred technical scheme, the heat transfer pipe is of a spiral structure, and is sleeved outside the air collecting pipe; the heating assembly comprises a heating casing and a rotating ball, the inner end face of the rotating ball is an embedded magnetic end face, an exhaust pipe is arranged on the heating casing, and an included angle between the exhaust pipe and the heating casing is 60 degrees. The heat-transfer pipe is helical structure, the heat-transfer pipe cover is established in the outside of collection tuber pipe, setting up through helical structure can be so that the heated area increase of collection tuber pipe, the heating cover shell provides support and protection for the installation of rolling ball, the rolling ball provides the support for the installation of friction plate and provides the basis for the rotation of friction plate in the heating cover shell simultaneously, the angle between exhaust tube and the heating cover shell is 60, the air of the extraction of messenger and the contact angle between the friction plate change, make the air increase to the motive force of friction plate.
As a preferred technical scheme, a plurality of groups of friction plates are arranged on the outer surface of the rotating ball and are rotatably connected with the heating casing, and the end faces of the friction plates, which are in contact with the heating casing, are all embedded magnetic end faces. The friction plate is installed in the surface of rolling ball and rubs with the heating cover shell, and the friction plate rubs the thermogenesis through magnetocaloric effect and heating cover shell, carries out high temperature heating through the calorifacient heat of friction to the air in the heating cover shell to kill bacterium, virus etc. to the air.
According to a preferable technical scheme, the dust collecting groove is a hemispherical hollow shell, the outer surface of the upper end of the dust collecting groove is provided with an exhaust hole, and the lower end of the dust collecting groove is provided with a liquid outlet; the upper end of the air collecting pipe is provided with a plurality of groups of water spraying pipes, and the plurality of groups of water spraying pipes are connected with the upper water tank pipeline. The exhaust hole provides a channel for air in the air collecting pipe to enter the air inlet pipe, the liquid discharge pipe provides a channel for muddy water in the dust collecting groove to enter the lower water tank, and the water spray pipe provides a channel for water transmitted by the upper water tank to enter the air collecting pipe.
As a preferred technical scheme, at least three groups of air inlet pipes are arranged at the outer side of the air collecting pipe corresponding to the positions of the spiral fan blades, the angles among the three groups of air inlet pipes are 120 degrees, and the angles between the air inlet pipes and the air collecting pipe are 40 degrees. The intake pipe carries out the collection tuber pipe for the air that the air inlet machine infuses and provides the passageway, the angle between three air-supply lines of group is 120, can make the air that the air inlet machine infuses promote spiral fan blade diversely, make spiral fan blade can diversely evenly receive the force, increase spiral fan blade's atress number of times, thereby make the rotation power increase of axis of rotation, the angle between air-supply line and the collection tuber pipe is 40, make the air that the air inlet machine infuses and spiral fan blade's contact angle change, and then make spiral fan blade can obtain bigger driving force.
Compared with the prior art, the invention has the beneficial effects that:
1. air inlet mechanism and exhaust mechanism mutually support and take a breath to the hospital, and air inlet mechanism utilizes wind energy and magnetic heat effect to remove dust, disinfect to the air of external extraction to reach tasteless disinfection effect, exhaust mechanism utilizes the magnetic heat effect to disinfect the air of extraction in the hospital, prevents that virus, bacterium etc. in the hospital from diffusing in the outside air.
2. Wind energy that produces through the air inlet machine drives the compression of eccentric wheel to the gasbag for the gasbag pours the air into to the upper water tank, makes the atmospheric pressure increase in the upper water tank, thereby makes the upper water tank impress water into the collection tuber pipe through the high pressure, for traditional mode through water pump transmission water in to the collection tuber pipe, this mode is simpler, moreover more saving cost and low energy consumption.
3. This device assembles into the impurity of water droplet in to the air through water smoke and separates, clears away, for traditional mode through filter screen, dust removal cloth to remove dust, remove impurity to the air, this mode is simpler, convenient, has not only reduced the cleaning process to filter screen, dust removal cloth, moreover to water handle the back can cyclic utilization once more.
4. This device carries out the frictional heating through wind energy and magnetic heat effect, and the high temperature that produces through the frictional heating carries out high temperature killing to bacterium, virus etc. in the air, compares in traditional mode of disinfecting and sterilizing through ultraviolet lamp irradiation, air heater heated air etc. and this mode is simpler, but also practices thrift cost, low energy consumption.
Drawings
FIG. 1 is a schematic view showing the overall structure of the odorless disinfecting and ventilating device for hospitals according to the present invention;
FIG. 2 is a front sectional view showing the overall construction of the odorless sterilizing ventilator for hospitals according to the present invention;
FIG. 3 is a schematic diagram showing the position relationship between the eccentric wheel and the compression plate of the odorless disinfecting and ventilating device for hospitals according to the present invention;
FIG. 4 is a schematic view of the connection structure of the air inlet pipe and the air collecting pipe of the odorless disinfecting and ventilating device for hospitals according to the present invention;
fig. 5 is a schematic view of the heating jacket and the rotating ball of the odorless sterilizing ventilator for hospitals according to the present invention.
The reference numbers are as follows: 1. a housing; 2. an air inlet mechanism; 3. an air draft mechanism; 1-1, a support frame; 2-1, an air inlet machine; 2-21, an air collecting pipe; 2-22, a dust collecting groove; 2-23, a magnetocaloric sphere; 2-21-1, a water spraying pipe; 2-21-2, an air inlet pipe; 2-23-1, embedding a magnetic shell; 2-23-2, embedding a magnetic rotating ball; 2-23-3, embedding a magnetic rotating plate; 2-23-4, an air outlet pipe; 2-23-5, an air inlet pipe; 2-24-1, air bag; 2-24-2, compression plate; 2-24-3, a support plate; 2-24-4, a rotating shaft; 2-24-5, eccentric wheel; 2-24-6, spiral fan blades; 2-31, a water feeding tank; 2-32, a lower water tank; 3-1, an exhaust fan; 3-2, heat transfer pipe; 3-31, heating the shell; 3-32, a rolling ball; 3-33, friction plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example (b): as shown in fig. 1-5, the hospital uses tasteless disinfection breather, this tasteless disinfection breather includes cover shell 1, air inlet mechanism 2, ventilation mechanism 3, from last to installing air inlet mechanism 2 down in proper order in the cover shell 1, ventilation mechanism 3, air inlet mechanism 2 utilizes the magnetocaloric effect to disinfect the air, air inlet mechanism 2 utilizes wind energy to spray water smoke in to the air and removes dust, ventilation mechanism 3 and air inlet mechanism 2 mutually support and take a breath to the hospital, ventilation mechanism 3 utilizes the magnetocaloric effect to disinfect the air of extraction, ventilation mechanism 3 heats the air of air inlet mechanism 2 extraction and sterilizes.
The device also comprises a control system, the control system is used for electrically controlling the fan and the water pump, the number of the air inlet fans 2-1 and the number of the exhaust fans 3-1 in the device are configured according to actual needs, three groups of air inlet fans 2-1 are included in the device, and the air inflow of a hospital is increased through the arrangement of the three groups of air inlet fans 2-1.
The air inlet mechanism 2 comprises an air inlet machine 2-1, a magnetic thermal component 2-2 and a water circulation component 2-3, the air inlet machine 2-1 is fixed above the casing 1 through screws, an air delivery pipeline is fixed at the air outlet end of the air inlet machine 2-1 through screws, the magnetic thermal component 2-2 is connected with the air inlet machine 2-1 through the air delivery pipeline, and the water circulation component 2-3 is fixed with the magnetic thermal component 2-2.
The magnetocaloric component 2-2 comprises an air collecting pipe 2-21, a dust collecting groove 2-22 and a magnetocaloric ball 2-23;
the upper end inside the air collecting pipe 2-21 is provided with a compression component 2-24, the compression component 2-24 comprises at least four groups of air bags 2-24-1, a compression plate 2-24-2 and at least two groups of support plates 2-24-3, the four groups of air bags 2-24-1 are fixedly arranged on the inner wall of the air collecting pipe 2-21 through gluing or screws, the four groups of air bags 2-24-1 are provided with air outlet pipes and air inlet pipes, the air outlet pipes and the air inlet pipes both penetrate through the pipe wall of the air collecting pipe 2-21, the four groups of air outlet pipes are communicated through annular pipes, the annular pipes are communicated with the water circulation component 2-3 through other pipes, the air outlet pipes and the air inlet pipes are both provided with one-way valves, the air outlet pipes only can exhaust air, the air inlet pipes only can intake air, the compression plate 2-24-2 is arranged on the outer side of the air bags 2-24-1 and is fixedly glued with the air bags 2-24-1, one end of the compression plate 2-24-2 is welded with the inner wall of the air collecting pipe 2-21, the compression plate 2-24-2 is made of memory metal materials, a spring is arranged between the other end of the compression plate 2-24-2 and the air collecting pipe 2-21, and the tension power of the compression plate 2-24-2 to the air bag 2-24-1 is increased through the spring.
Two groups of supporting plates 2-24-3 are welded on the inner wall of the wind collecting pipe 2-21, a rotating shaft 2-24-4 is rotatably arranged on the two groups of supporting plates 2-24-3, an eccentric wheel 2-24-5 and a spiral fan blade 2-24-6 are fixedly arranged on the rotating shaft 2-24-4 from top to bottom in sequence, the eccentric wheel 2-24-5 is positioned above the two groups of supporting plates 2-24-3, the spiral fan blade 2-24-6 is positioned between the two groups of supporting plates 2-24-3, and the eccentric wheel 2-24-5 is rotatably connected with the compression plate 2-24-2.
When the eccentric wheel 2-24-5 extrudes the compression plate 2-24-2, the compression plate 2-24-2 compresses the air bag 2-24-1, so that air in the air bag 2-24-1 enters the water circulation assembly 2-3, the air pressure in the water circulation assembly 2-3 is enhanced, and after the eccentric wheel 2-24-5 is separated from the compression plate 2-24-2, the compression plate 2-24-2 stretches the air bag 2-24-1 under the action of the material and the spring, so that the air bag 2-24-1 extracts air to supplement the air.
The dust collection groove 2-22 is a hemispherical hollow shell, an exhaust hole is processed on the outer surface of the upper end of the dust collection groove 2-22, a liquid discharge port is processed at the lower end of the dust collection groove 2-22, the hemispherical opening end of the dust collection groove 2-22 is welded with the lower end of the air collection pipe 2-21, a pipeline is welded on the outer side of the exhaust hole of the dust collection groove 2-22, the other end of the pipeline is communicated with the magnetic hot ball 2-23, a pipeline is welded on the outer side of the liquid discharge port of the dust collection groove 2-22, and the other end of the pipeline is communicated with one end of the water circulation component 2-3.
A support frame 1-1 is welded on the lower end face inside the casing 1, and the magnetic heat ball 2-23 is fixed on the upper end face of the support frame 1-1 through a screw; the magnetic and thermal ball 2-23 comprises a magnetic embedded shell 2-23-1 and a magnetic embedded rotating ball 2-23-2, the magnetic embedded shell 2-23-1 is fixed on the upper end surface of the support frame 1-1 through screws, the upper side and the lower side of the magnetic embedded shell 2-23-1 are respectively welded with an air outlet pipe 2-23-4 and an air inlet pipe 2-23-5, the other end of the air inlet pipe 2-23-5 is communicated with a dust collecting groove 2-22 through a pipeline, the other end of the air outlet pipe 2-23-4 is connected with a hospital ventilation pipeline, the outer surface of the magnetic embedded rotating ball 2-23-2 is welded with a plurality of groups of magnetic embedded rotating plates 2-23-3, the magnetic embedded rotating ball 2-23-2 provides a foundation for the magnetic embedded rotating plates 2-23-3 to rotate in the magnetic embedded shell 2-23-1, the magnetic embedded rotating plates 2-23-3 are rotatably connected with the magnetic embedded shells 2-23-1, the inner surfaces of the magnetic embedded shells 2-23-1 are magnetic embedded end surfaces, and the end surfaces of the magnetic embedded rotating plates 2-23-3, which are contacted with the magnetic embedded shells 2-23-1, are all magnetic embedded end surfaces.
The water circulation component 2-3 comprises an upper water tank 2-31 and a lower water tank 2-32, the upper water tank 2-31 is fixed on the casing 1 through screws, the upper water tank 2-31 is connected with the air bag 2-24-1 through a pipeline, the upper water tank 2-31 is communicated with the upper end of the air collecting pipe 2-21 through a pipeline, when the air in the air bag 2-24-1 enters the upper water tank 2-31, the air pressure in the upper water tank 2-31 is increased, the water in the upper water tank 2-31 is pressed into the air collecting pipe 2-21 through the pipeline through the continuously increased air pressure and is sprayed into the air collecting pipe 2-21 through the water spraying pipe 2-21-1, the lower water tank 2-32 is positioned below the support frame 1-1, the lower water tank 2-32 is communicated with the lower end of the dust collecting groove 2-22 through a pipeline, the upper water tank 2-31 is fixed with a water pump through screws, the water pump is provided with a water inlet pipe and a water outlet pipe, the other end of the water inlet pipe is positioned in the lower water tank 2-32, and the other end of the water outlet end is positioned in the upper water tank 2-31.
Further optimization, a sewage purification device is arranged in the lower water tank 2-32 to purify muddy water in the lower water tank 2-32, meanwhile, a disinfection and sterilization device is arranged in the lower water tank 2-32 to kill viruses, bacteria and the like in water, and clean water in the lower water tank 2-32 is pumped by a water pump and is supplemented into the upper water tank 2-31.
The upper end of the interior of the air collecting pipe 2-21 is positioned below the supporting plate 2-24-3 and is provided with a plurality of groups of water spraying pipes 2-21-1, the water inlet ends of the plurality of groups of water spraying pipes 2-21-1 penetrate through the air collecting pipe 2-21 and are communicated together through a pipeline, the plurality of groups of water spraying pipes 2-21-1 are communicated with the upper water tank 2-31 through a pipeline, when water in the upper water tank 2-31 is transmitted to the positions of the water spraying pipes 2-21-1 through high pressure, the water spraying pipes 2-21-1 spray the water out through high pressure, and water mist is formed in the air collecting pipe 2-21.
The upper end and the lower end of the air collecting pipe 2-21 are cylindrical, the middle part is conical, at least three groups of air inlet pipes 2-21-2 are welded at the positions, corresponding to the spiral fan blades 2-24-6, on the outer side of the air collecting pipe 2-21, the angles among the three groups of air inlet pipes 2-21-2 are 120 degrees, one ends, far away from the air collecting pipe 2-21, of the air inlet pipes 2-21 are upwarped and 40 degrees is formed between the ends and the air collecting pipe 2-21, the three groups of air inlet pipes 2-21-2 are respectively connected with the three groups of air inlet machines 2-1 in a pipeline mode, the air inlet machines 2-1 infuse air into the air collecting pipe 2-21 through the air inlet pipes 2-21-2, and the spiral fan blades 2-24-6 are pushed to rotate through air flow.
The air draft mechanism 3 comprises an air draft fan 3-1, a heat transfer pipe 3-2 and a heating assembly 3-3, wherein the air draft fan 3-1 is fixed on a shell of the shell case 1 through screws, the heat transfer pipe 3-2 is of a spiral structure, the heat transfer pipe 3-2 is sleeved on the air collecting pipe 2-21 and fixed on the outer side of the air collecting pipe 2-21 through screws, one end of the heat transfer pipe 3-2 is fixed with the air outlet end of the air draft fan 3-1 through a pipeline and screws, the other end of the heat transfer pipe 3-2 is welded with the heating assembly 3-3 through a pipeline, and the other end of the heating assembly 3-3 is connected with a hospital ventilation pipeline.
The heating component 3-3 comprises a heating jacket 3-31 and a rotating ball 3-32;
the inner end faces of the rotating balls 3-32 are magnetic-embedded end faces, the heating casing shells 3-31 are welded with air exhaust pipes, the included angles between the air exhaust pipes and the heating casing shells 3-31 are 60 degrees, and the air exhaust pipes are connected with ventilation pipelines of hospitals.
The outer surface of the rotating ball 3-32 is welded with a plurality of groups of friction plates 3-33, the plurality of groups of friction plates 3-33 are rotatably connected with the heating casing 3-31, and the end surfaces of the friction plates 3-33, which are contacted with the heating casing 3-31, are all embedded magnetic end surfaces.
The working principle of the invention is as follows:
when a hospital needs to exchange air, the control system controls the air inlet machines 2-1 to start working, the three groups of air inlet machines 2-1 infuse air into the air collecting pipe 2-21 through the air inlet pipes 2-21-2, the spiral fan blades 2-24-6 drive the eccentric wheels 2-24-5 to rotate through the rotating shafts 2-24-4 under the push of air flow, the eccentric wheels 2-24-5 circularly extrude the compression plate 2-24-2 through rotation, so that the compression plate 2-24-2 compresses the air bags 2-24-1, the air in the air bags 2-24-1 is conveyed into the upper water tank 2-31, the air content in the upper water tank 2-31 is continuously increased, and the air pressure in the upper water tank 2-31 is continuously increased, so that the water in the upper water tank 2-31 is sprayed into the wind collecting pipe 2-21 through the pipeline and the water spraying pipe 2-21-1, and the sprayed water mist is contacted with the air in the wind collecting pipe 2-21 and mixed with impurities in the air.
Because one end of the air inlet pipe 2-21-2 far away from the air collecting pipe 2-21 is upwarped and has an angle of 40 degrees with the air collecting pipe 2-21, the air flow of the air inlet fan 2-1 infused into the air collecting pipe 2-21 through the air inlet pipe 2-21-2 is inclined downwards, the air flow enters the middle space of the air collecting pipe 2-21 through the spiral fan blades 2-24-6, when the air flow passes through the spiral fan blades 2-24-6, the spiral fan blades 2-24-6 change the air flow into the air flow moving downwards in a spiral manner, after the water mist is contacted with the air and mixed with impurities in the air, the water mist in the air is not melted together through the continuous spiral downwards air flow and the continuously reduced rotating space, water drops are separated from the air and fall into the dust collecting tank 2-22, finally, impurities in the air are separated from the air.
The upper water tank 2-31 continuously sprays water mist into the air collecting pipe 2-21 through the water spraying pipe 2-21-1, so that muddy water with impurities in the dust collecting groove 2-22 is more and more, the water with impurities is stored in the integrated groove 2-22, and when the upper water tank 2-31 extracts water in the lower water tank 2-32, the muddy water enters the lower water tank 2-32 through a pipeline.
When the upper water tank 2-31 pumps water in the lower water tank 2-32 through the water pump, a pipeline between the lower water tank 2-32 and the dust collecting groove 2-22 is blocked by muddy water, so that the lower water tank 2-32 forms a relatively closed space, the water pump pumps water in the lower water tank 2-32 to enlarge an air storage space in the lower water tank 2-32, so that the interior of the lower water tank 2-32 becomes a low-pressure environment, and because the three air intakes 2-1 simultaneously pump air into the air collecting pipe 2-21 and the conical structure of the air collecting pipe 2-21, the air at the lower end of the air collecting pipe 2-21 is high-pressure, so that the muddy water in the dust collecting groove 2-22 enters the lower water tank 2-32 under the action of high pressure.
Air at the lower end of the air collecting pipe 2-21 enters the magnetic hot balls 2-23 through the air exhaust holes at the upper ends of the dust collecting grooves 2-22 and the pipelines, after the air enters the magnetic hot balls 2-23 through the pipelines, the magnetic embedded rotating plates 2-23-3 drive the magnetic embedded rotating balls 2-23-2 to rotate in the magnetic embedded shells 2-23-1 under the pushing of air flow, the magnetic embedded rotating plates 2-23-3 generate heat through friction with the inner surfaces of the magnetic embedded shells 2-23-1 through the magnetic hot effect, and moisture, bacteria, viruses and the like in the air are evaporated and killed through high temperature generated by the heat generated through friction, so that the air entering a hospital is pure, tasteless and bacteria and virus-free air.
When the control system controls the exhaust fan 3-1 to start working, the exhaust fan 3-1 pumps air in the hospital through the heat transfer pipe 3-2 and the heating assembly 3-3; when the air in the heating jacket 3-31 is extracted by the exhaust fan 3-1, low pressure is generated in the heating jacket 3-31, air flow is formed in the heating jacket 3-31 after the air in the hospital enters the heating jacket 3-31 under the extraction of the exhaust fan 3-1, the friction plate 3-33 drives the rotary ball 3-32 to rotate in the heating jacket 3-31 under the pushing of the air flow, the friction plate 3-33 generates heat through friction with the heating jacket 3-31 through magnetocaloric effect and generates high temperature, and when the air in the hospital enters the inside of the heating jacket 3-31, bacteria, viruses and the like in the air are killed in the high temperature environment, so that the bacteria, viruses and the like in the hospital are prevented from being diffused to the outside atmosphere.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. The utility model provides a hospital is with tasteless disinfection breather which characterized in that: the odorless disinfection and air exchange device comprises a casing (1), an air inlet mechanism (2) and an air draft mechanism (3), wherein the air inlet mechanism (2) and the air draft mechanism (3) are sequentially arranged in the casing (1) from top to bottom, the air inlet mechanism (2) utilizes the magnetocaloric effect to disinfect and sterilize air, the air inlet mechanism (2) utilizes wind energy to spray water mist into air to remove dust, the air draft mechanism (3) and the air inlet mechanism (2) are mutually matched to exchange air for a hospital, the air draft mechanism (3) utilizes the magnetocaloric effect to disinfect and sterilize the extracted air, and the air draft mechanism (3) heats and sterilizes the air extracted by the air inlet mechanism (2);
the air inlet mechanism (2) comprises an air inlet machine (2-1), a magnetocaloric component (2-2) and a water circulation component (2-3), the air inlet machine (2-1) is arranged above the shell (1), the magnetocaloric component (2-2) is connected with the air inlet machine (2-1) through a pipeline, and the water circulation component (2-3) is fixed with the magnetocaloric component (2-2);
the air collecting pipe (2-21) is internally provided with a compression assembly (2-24) at the upper end, the compression assembly (2-24) comprises at least four groups of air bags (2-24-1), a compression plate (2-24-2) and at least two groups of support plates (2-24-3), the four groups of air bags (2-24-1) are arranged on the inner wall of the air collecting pipe (2-21), the four groups of air bags (2-24-1) are communicated through a pipeline, the air bags (2-24-1) are fixed with one end of a water circulation assembly (2-3), the compression plate (2-24-2) is arranged on the outer side of the air bags (2-24-1), one end of the compression plate (2-24-2) is fixed with the inner wall of the air collecting pipe (2-21), and a rotating shaft (2-24-4) is arranged on the two groups of support plates (2-24 ) The rotating shaft (2-24-4) is sequentially provided with an eccentric wheel (2-24-5) and a spiral fan blade (2-24-6) from top to bottom, the eccentric wheel (2-24-5) is positioned above the two groups of supporting plates (2-24-3), the spiral fan blade (2-24-6) is positioned between the two groups of supporting plates (2-24-3), and the eccentric wheel (2-24-5) is rotatably connected with the compression plate (2-24-2);
the water circulation assembly (2-3) comprises an upper water tank (2-31) and a lower water tank (2-32), the upper water tank (2-31) is arranged on the casing (1), the upper water tank (2-31) is connected with the air bag (2-24-1) through a pipeline, the upper water tank (2-31) is connected with the air collecting pipe (2-21) through a pipeline, the lower water tank (2-32) is arranged below the support frame (1-1), the lower water tank (2-32) is connected with the lower end of the dust collecting groove (2-22) through a pipeline, a water pump is arranged on the upper water tank (2-31), and the upper water tank (2-31) is connected with the lower water tank (2-32) through a pipeline;
the dust collecting groove (2-22) is a hemispherical hollow shell, the outer surface of the upper end of the dust collecting groove (2-22) is provided with an exhaust hole, and the lower end of the dust collecting groove (2-22) is provided with a liquid discharge port; the upper end of the wind collecting pipe (2-21) is provided with a plurality of groups of water spraying pipes (2-21-1), and the plurality of groups of water spraying pipes (2-21-1) are connected with the upper water tank (2-31) through pipelines;
the magneto-thermal component (2-2) comprises an air collecting pipe (2-21), a dust collecting groove (2-22) and a magneto-thermal ball (2-23), the upper end of the air collecting pipe (2-21) is fixed with the air inlet fan (2-1), one side of the upper end of the air collecting pipe (2-21) is fixed with one end of the water circulation component (2-3), the lower end of the air collecting pipe (2-21) is fixed with the dust collecting groove (2-22), one side of the outer end face of the dust collecting groove (2-22) is fixed with the magneto-thermal ball (2-23), and the lower end of the dust collecting groove (2-22) is fixed with the other end of the water circulation component (2-3);
at least three groups of air inlet pipes (2-21-2) are arranged on the outer side of the air collecting pipe (2-21) corresponding to the positions of the spiral fan blades (2-24-6), the angle between the three groups of air inlet pipes (2-21-2) is 120 degrees, and the angle between the air inlet pipe (2-21-2) and the air collecting pipe (2-21) is 40 degrees.
2. The odorless disinfecting and ventilating device for hospital according to claim 1, wherein: air draft mechanism (3) include air exhauster (3-1), heat-transfer pipe (3-2), heating element (3-3), air exhauster (3-1) is fixed with cover shell (1), heat-transfer pipe (3-2) cover is established on magnetism thermal component (2-2), and heat-transfer pipe (3-2) one end is fixed with air exhauster (3-1), and the heat-transfer pipe (3-2) other end is fixed with heating element (3-3), the other end and the hospital air pipe of heating element (3-3) are connected.
3. The odorless disinfecting and ventilating device for hospital according to claim 1, wherein: the magnetic heating ball (2-23) comprises a magnetic embedded shell (2-23-1) and a magnetic embedded rotating ball (2-23-2), the upper side and the lower side of the magnetic embedded shell (2-23-1) are respectively provided with an air outlet pipe (2-23-4) and an air inlet pipe (2-23-5), the other end of the air inlet pipe (2-23-5) is fixed with a dust collecting groove (2-22), the other end of the air outlet pipe (2-23-4) is connected with a hospital ventilation pipeline, the outer surface of the magnetic embedded rotating ball (2-23-2) is provided with a plurality of groups of magnetic embedded rotating plates (2-23-3), the plurality of groups of magnetic embedded rotating plates (2-23-3) are rotatably connected with the magnetic embedded shell (2-23-1), the inner surface of the magnetic embedded shell (2-23-1) is a magnetic embedded end surface, the end surfaces of the magnetic embedded rotating plates (2-23-3) in contact with the magnetic embedded shell (2-23-1) are magnetic embedded end surfaces.
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| CN202110674452.8A CN113390149A (en) | 2020-06-04 | 2020-06-04 | Hospital is with tasteless disinfection breather |
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|---|---|---|---|
| CN202010509493.7A CN111623462B (en) | 2020-06-04 | 2020-06-04 | Odorless disinfection and ventilation device for hospital |
| CN202110674452.8A CN113390149A (en) | 2020-06-04 | 2020-06-04 | Hospital is with tasteless disinfection breather |
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| CN202010509493.7A Division CN111623462B (en) | 2020-06-04 | 2020-06-04 | Odorless disinfection and ventilation device for hospital |
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| CN112029640B (en) * | 2020-11-06 | 2021-02-05 | 广州加泰医药科技有限公司 | Anti-pollution test box for medical microorganism cultivation |
| CN112999809B (en) * | 2021-02-23 | 2022-03-08 | 无锡恒大电子科技有限公司 | High-efficient separation tail gas impurity device |
| CN113108411A (en) * | 2021-03-30 | 2021-07-13 | 通用空气(辽宁)有限公司 | Terminal disinfection device of air exchange system |
| CN115523569B (en) * | 2022-10-31 | 2023-06-06 | 浙江展诚建设集团股份有限公司 | Air purifying device applied to green building |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006061493A (en) * | 2004-08-27 | 2006-03-09 | Toshiba Kyaria Kk | Dust collector |
| CN102878720A (en) * | 2011-07-12 | 2013-01-16 | 台达电子工业股份有限公司 | Magnetocaloric material structure |
| CN106949673A (en) * | 2017-03-27 | 2017-07-14 | 中国科学院理化技术研究所 | Active magnetic heat regenerator and magnetic refrigeration system |
| CN206929900U (en) * | 2017-06-13 | 2018-01-26 | 侯思明 | It is a kind of to sterilize, except the air cleaning system of haze, sand and dust and ozone |
| CN207221045U (en) * | 2017-03-10 | 2018-04-13 | 无锡市第二人民医院 | A kind of new medical disinfect box |
| CN208031584U (en) * | 2017-11-24 | 2018-11-02 | 广州市博真电子科技有限公司 | A kind of infrared ray magnetic treatment suction cup |
| CN109294653A (en) * | 2018-11-06 | 2019-02-01 | 彭圆 | A kind of LPG Desulfurization technique |
| CN210569040U (en) * | 2019-06-27 | 2020-05-19 | 陈强 | Ventilation equipment that infectious department ward was used |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130013576A (en) * | 2011-07-28 | 2013-02-06 | 린나이코리아 주식회사 | Heat-recovery type ventilation system using heat-pump air conditioner |
-
2020
- 2020-06-04 CN CN202010509493.7A patent/CN111623462B/en active Active
- 2020-06-04 CN CN202110674452.8A patent/CN113390149A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006061493A (en) * | 2004-08-27 | 2006-03-09 | Toshiba Kyaria Kk | Dust collector |
| CN102878720A (en) * | 2011-07-12 | 2013-01-16 | 台达电子工业股份有限公司 | Magnetocaloric material structure |
| CN207221045U (en) * | 2017-03-10 | 2018-04-13 | 无锡市第二人民医院 | A kind of new medical disinfect box |
| CN106949673A (en) * | 2017-03-27 | 2017-07-14 | 中国科学院理化技术研究所 | Active magnetic heat regenerator and magnetic refrigeration system |
| CN206929900U (en) * | 2017-06-13 | 2018-01-26 | 侯思明 | It is a kind of to sterilize, except the air cleaning system of haze, sand and dust and ozone |
| CN208031584U (en) * | 2017-11-24 | 2018-11-02 | 广州市博真电子科技有限公司 | A kind of infrared ray magnetic treatment suction cup |
| CN109294653A (en) * | 2018-11-06 | 2019-02-01 | 彭圆 | A kind of LPG Desulfurization technique |
| CN210569040U (en) * | 2019-06-27 | 2020-05-19 | 陈强 | Ventilation equipment that infectious department ward was used |
Non-Patent Citations (2)
| Title |
|---|
| 上海市经济团体联合会，上海市化学化工学会: "《节能减排理论基础与装备技术》", 31 May 2010, pages: 362 - 365 * |
| 果继辉: "《富康988轿车使用与维修手册》", 31 January 2002, pages: 92 - 96 * |
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| CN111623462A (en) | 2020-09-04 |
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