CN115031299A

CN115031299A - Fan coil and operation method thereof

Info

Publication number: CN115031299A
Application number: CN202210672335.2A
Authority: CN
Inventors: 许勇; 刘耀斌; 李锦彬; 王鹏
Original assignee: Beijing Tongfang Clean Tech Co ltd
Current assignee: Beijing Tongfang Clean Tech Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-09-09

Abstract

The application relates to a fan coil and an operation method thereof. This fan coil includes: the air duct is internally provided with a plurality of fixed baffles along the axial direction to divide the air duct into more than or equal to 2 filtering units; the first fan is arranged on the air duct and communicated with the air duct; the surface cooler is arranged around the air duct; the gas filtering device comprises a filter, a control mechanism, a switch mechanism and a sterilizing mechanism; the filter is arranged in the filtering unit; the control mechanism is electrically connected with the switch mechanism and the killing mechanism; according to the command of the control mechanism, the switch mechanism closes the filter in one of the filter units, so that the filter is in the closed space formed by the switch mechanism, and the sterilizing mechanism sterilizes the filter in the closed space. The technical problem to be solved is to enable the fan coil to complete the killing of viruses and bacteria on line under the condition of continuous operation, so that the viruses and bacteria can be effectively separated from the activity space of people, the safety of the space is ensured, and the operation of the fan coil is not influenced by stopping the fan coil.

Description

Fan coil and operation method thereof

Technical Field

The application belongs to the technical field of air disinfection and purification, and particularly relates to a fan coil and an operation method thereof.

Background

Indoor air has many pollution sources, often needs to carry out purification treatment to indoor air. An air purifier is a device capable of adsorbing or decomposing air pollutants, and common air purification technologies include: the air purifier comprises an adsorption technology, a negative (positive) ion technology, a catalysis technology, a photocatalyst technology, a superstructure light mineralization technology, a HEPA high-efficiency filtration technology, an electrostatic dust collection technology and the like, and the existing air purifier can adopt various purification technologies and material media to purify air. However, for places such as hotels and restaurants, office buildings, hospitals, entertainment venues, airport stations, and the like, or large population density, or a large number of corners, indoor air purification is more important, but the current air purification equipment can only meet the use of a small room, and a large number of air purifiers are needed to meet the air purification requirement in the environment, so that the cost is too high, and the implementation is difficult.

The fan coil comprises a fan and a surface cooler, wherein the fan can cool or heat indoor air or outdoor mixed air through the surface cooler and then send the air into the room, so that the indoor temperature is lowered or raised to meet the comfort requirement of people, and the fan coil can be widely applied to hotels, office buildings, hospitals, business and residential institutions and scientific research institutions. However, in the prior art, the fan coil is difficult to configure with an effective air sterilization and disinfection system. On the one hand, because the residence time of the gas in the fan coil is limited, the disinfection is difficult to realize in such a short time by adopting a chemical method or a physical method; on the other hand, even if air sterilization is performed by increasing the concentration of the sterilizing material or increasing the intensity of the sterilizing radiation, chemical substances and the like remaining in the air may enter the space where people move along with the air blowing port, causing adverse effects on the human body.

Meanwhile, in many occasions using the fan coil, due to reasons such as special service, the fan coil in the occasion needs to be continuously operated, and the occasion of completely stopping the machine to sterilize and disinfect air is not provided at all.

Disclosure of Invention

The main purpose of this application is to provide a fan coil and operation method thereof, and the technical problem that will solve makes fan coil can accomplish the disinfection of virus and bacterium on line under the condition of continuity of operation, can guarantee the security in space with virus and bacterium and crowd's activity space separation effectively, need not shut down again and influence its operation to be suitable for the practicality more.

The purpose of the application and the technical problem to be solved are realized by adopting the following technical scheme. According to this application, a fan coil is proposed, it includes:

the air duct is internally provided with a plurality of fixed baffles along the axial direction and divides the air duct into at least two filtering units;

the first fan is arranged on the air duct and communicated with the air duct;

the surface cooler is arranged around the air duct; and the combination of (a) and (b),

the gas filtering device comprises a filter, a control mechanism, a switch mechanism and a sterilizing mechanism; the filter is arranged in the filtering unit; the control mechanism is electrically connected with the switch mechanism and the killing mechanism; according to the command of the control mechanism, the switch mechanism closes the filter in one of the filter units, so that the filter is in the closed space formed by the switch mechanism, and the killing mechanism kills the filter in the closed space.

The purpose of the present application and the technical problem solved by the present application can be further achieved by the following technical measures.

Preferably, the fan coil, wherein the air duct is a square air duct, and the air duct includes an upper panel, a lower panel and a pair of side walls; the fixed baffle is parallel to a pair of side walls of the square air duct; and two ends of the fixed baffle are respectively connected with the upper panel and the lower panel of the square air duct.

Preferably, the fan coil, wherein the switching mechanism comprises two movable baffles; the movable baffle is respectively arranged at the air inlet end and the air outlet end of the filtering unit; the movable baffle plate and the fixed baffle plate, the upper panel and the lower panel can be connected with each other to form a closed space.

Preferably, the fan coil described above, wherein said switching mechanism comprises a moving unit; the control mechanism can control the moving unit to move the movable baffle.

Preferably, the fan coil is provided, wherein the moving unit comprises a sliding rod, a sliding block and a driving motor; the sliding block is fixedly connected to the movable baffle; the driving motor drives the sliding block to move along the sliding rod.

Preferably, the fan coil is described above, wherein the movable baffle is disposed upstream and downstream of the filter perpendicular to the fixed baffle; the control mechanism can control the motion unit to move the movable baffle.

Preferably, the fan coil described above, wherein said switching mechanism comprises a sealing unit; the control mechanism can control the sealing unit to enable the filter to be disinfected and sterilized to be in the closed space.

Preferably, the fan coil is provided, wherein the sterilizing mechanism comprises a second fan and a disinfectant sprayer and/or catalyst storage arranged in parallel; the second fan is capable of delivering a disinfectant spray generated by the disinfectant sprayer to the filter unit; alternatively, the second fan can deliver catalyst from the catalyst reservoir to the filtration unit.

Preferably, in the fan coil, the killing mechanism further includes a first electric three-way valve and a second electric three-way valve; one end of the first electric three-way valve is connected with the second fan, and the other two ends of the first electric three-way valve are respectively connected with the disinfectant sprayer and the catalyst storage; one end of the second electric three-way valve is connected with the filtering unit, and the other two ends of the second electric three-way valve are respectively connected with the disinfectant sprayer and the catalyst storage.

Preferably, the fan coil, wherein the disinfecting mechanism further comprises a nozzle and a spray pipeline; the nozzle and the spraying pipeline are both arranged on the movable baffle.

Preferably, the fan coil is a high efficiency filter; the filter is a straight plate type filter, a V-shaped filter, a W-shaped filter, a cloth bag type filter or a cylindrical filter.

The object of the present application and the technical problem to be solved are also achieved by the following technical means. According to the operation method of the fan coil, the fan coil comprises an air duct; the air duct comprises at least two filters which are arranged in parallel; the method comprises the following steps: one of the filters is enclosed in a closed space and is sterilized while the other filters filter air.

Borrow by above-mentioned technical scheme, the fan coil and operation method thereof that this application provided has following advantage at least:

the fan coil and the operation method thereof have the advantages that the air duct of the fan coil is divided into at least 2 or more filtering units which are arranged in parallel in a physical mode; each filtering unit is internally provided with a high-efficiency filter for filtering viruses, bacteria and the like in the gas. When the filter absorbs viruses, bacteria and the like to influence the ventilation effect of the filter, or the filter needs to be sterilized according to preset sterilization conditions, the filter in one filtering unit can be sealed in a closed space, firstly, the disinfectant is sprayed and conveyed to the filter in the closed space through the second fan to be sufficiently sterilized, and after the viruses and the bacteria are sterilized, the catalyst in the catalyst storage is conveyed to the closed space through the second fan to decompose the residual disinfectant in the closed space; after the residual disinfectant is completely decomposed, the closed space can be opened, and then the other filtering unit is disinfected and sterilized in the same step; the virus and bacteria killing of all the filtering units is completed by analogy; the fan coil and the operation method thereof can enable the fan coil to complete the killing of viruses and bacteria on line under the condition of continuous operation, effectively separate the viruses and bacteria from the activity space of people, ensure the safety of the activity space of the people, and influence the operation of the fan coil without stopping.

The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clear and clear, and to implement the technical solutions according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a fan coil according to one embodiment of the present application;

FIG. 2 is a schematic structural diagram of a square duct according to an embodiment of the present application.

Detailed Description

To further illustrate the technical means and effects adopted by the present application to achieve the intended application purpose, the following detailed description is given to a fan coil and an operation method thereof according to the present application, and specific embodiments, structures, features and effects thereof, in conjunction with the accompanying drawings and preferred embodiments.

The application provides a fan coil, as shown in attached figures 1 and 2, which comprises an air duct 1; a plurality of fixed baffles 2 are axially arranged in the air duct 1 to divide the air duct 1 into N filtering units, wherein N is more than or equal to 2. The fan coil further comprises a first fan 3; the first fan 3 is arranged on the air duct 1 and communicated with the air duct 1; the first fan 3 is capable of circulating indoor air through the air duct by being driven by the motor 31. The fan coil further comprises a surface cooler 4; the surface cooler 4 can be a coil structure and is arranged around the air duct 1, and the surface cooler is only shown in a block diagram in the schematic diagram, and the pipeline of the surface cooler is not specifically drawn, and any coil surrounding structure in the prior art can be used; media such as cold water, chilled water or hot water can be introduced into the pipeline of the surface air cooler to cool or heat the air flowing through the air duct, so that the air exchanges heat with the air in the air duct around the surface air cooler; when the surface air cooler 4 and the first fan 3 are simultaneously operated, the temperature and humidity of indoor air can be adjusted. The fan coil further comprises a gas filtering device 5, which comprises a filter 51, a control mechanism (not marked in the figure), a switch mechanism and a sterilizing mechanism; the filter 51 is arranged in the filter unit; the filter 51 is capable of filtering viruses and bacteria in the air and blocking/adsorbing the viruses and bacteria on the filter 51; the control mechanism is electrically connected with the switch mechanism and the killing mechanism; according to the command of the control mechanism, the switch mechanism closes the filter 51 in one of the filter units, so that the filter 51 is in the closed space 52 formed by the switch mechanism, and the sterilizing mechanism sterilizes the filter 51 in the closed space 52.

In one embodiment of the present application, the air duct 1 is a square air duct, generally flat, including an upper panel 11, a lower panel 12, and a pair of sidewalls 13; the fixed baffle 2 is parallel to a pair of side walls 13 of the square air duct and is arranged perpendicular to an upper panel 11 and a lower panel 12 of the square air duct; two ends of the fixed baffle 2 are respectively connected with an upper panel 11 and a lower panel 12 of the square air duct; the filter units are arranged in parallel in the horizontal direction.

In one embodiment of the present application, the switch mechanism comprises two movable shutters 531; the movable baffle 531 is respectively arranged at the air inlet end and the air outlet end of the filter unit, namely the upstream and the downstream of the filter 51; the movable barrier 531 and the fixed barrier 2, the upper panel 11 and the lower panel 12 can be connected to each other to form a closed space 52. The switch mechanism can close the filter 51 in one of the filter units in the closed space 52, and the filter 51 closed in the closed space 52 is sterilized by the sterilizing mechanism. In the process that the switch mechanism and the sterilizing mechanism carry out the sterilizing activity, the filters in other filter units can normally filter gas.

In a specific embodiment of the present application, the switching mechanism comprises a moving unit; the control mechanism can control the moving unit to move the movable baffle 531; the motion unit comprises a slide bar 532, a slide block 533 and a driving motor (not labeled in the figure); the sliding block 533 is fixedly connected to the movable baffle 531; the driving motor drives the slider 533 to move along the slide bar 532. The motion unit may be implemented in any manner known in the art. In a specific embodiment of the present application, the sliding bar is implemented using a lead screw guide.

In a particular embodiment of the present application, the switch mechanism comprises a slide rail; and two ends of the movable baffle are inserted into the slide rails and can move along the slide rails.

In a specific embodiment of the present application, the movable barrier 531 is disposed perpendicular to the fixed barrier 2 upstream and downstream of the filter 51; the control mechanism can control the moving unit to move the movable baffle 531 left and right in the horizontal direction.

In a particular embodiment of the present application, the fan coil further comprises a flapper receiving space. When the fan coil does not need to be killed, the movable baffle can be accommodated in the movable baffle accommodating space; in this case, all the filter units are in operation for filtering air, and do not affect the air circulation of the fan coil. When the fan coil needs to be killed, the movable baffle is killed in one filtering unit, one filtering unit in all the filtering units is in a state of stopping filtering air, and the fan coil can operate under the designed air volume (N-1)/Nx 100%, wherein N is larger than or equal to 2).

In a specific embodiment of the present application, the flapper is collapsible for storage.

In one particular embodiment of the present application, the movable flap of the fan coil is not stowed; the movable baffle and the fixed baffle form a closed space. When the fan coil needs to be killed, the killing mechanism can be opened to kill the filter in the closed space; and when the fan coil does not need to be sterilized, the sterilizing mechanism is closed, and at the moment, the closed space only stays in one filtering unit. When the process parameters of the fan coil are designed, the air volume design allowance of one filtering unit can be considered; under the condition, no matter the fan coil is on the start of killing or the non-start of killing, the fresh air volume and the ambient temperature condition that it provided do not receive any influence.

In one embodiment of the present application, the switching mechanism comprises a sealing unit (not shown); the control means are able to control the sealing unit so that the filter 51 to be sterilised is in the closed space 52. The seal may be made by using a sealing material or any dynamic sealing technique known in the art, and is not particularly limited in this application.

In one embodiment of the present application, the disinfecting mechanism comprises a second blower 54 and a disinfectant mist generator 55 and/or a catalyst reservoir 56 arranged in parallel; the second fan 54 is capable of delivering the disinfectant spray produced by the disinfectant sprayer 55 to the filter unit; the catalyst storage 56 can store a catalyst with a catalytic decomposition function of the disinfectant, so that the catalyst can be conveyed into the closed space 52 through the second fan 54, and thus, the residual disinfectant after disinfection can be decomposed, and the disinfectant is prevented from being emitted into an indoor space to affect human health.

In one embodiment of the present application, the killing mechanism further comprises a first electric three-way valve 571 and a second electric three-way valve 572; one end of the first electric three-way valve 571 is connected with the second fan 54, and the other two ends are respectively connected with the disinfectant mist generator 55 and the catalyst reservoir 56; one end of the second electric three-way valve 572 is connected to the filter unit, and the other two ends are respectively connected to the disinfectant sprayer 55 and the catalyst reservoir 56.

In one embodiment of the present application, the killing mechanism further comprises a nozzle 58 and a spray line; the nozzle 58 extends into the enclosed space 52 for spraying a spray of disinfectant into the enclosed space 52 to kill viruses and bacteria filtered and adsorbed on the filter, or for spraying a catalyst into the enclosed space 52 to break up a residual spray of disinfectant.

In one embodiment of the present application, the nozzle 58 and the spray pipe are both disposed on the movable baffle 531, and can move along with the movement of the movable baffle 531; this design allows different filter units to share a common set of nozzles 58 and spray lines without the need for special nozzles and spray lines in each filter unit.

In one embodiment of the present application, the killing mechanism further comprises a return air line connecting the filter unit and the inlet of the second blower to maintain the gas balance of the system.

In one embodiment of the present application, each filter unit may share a set of spray devices; the spray head and the return air pipeline of the spraying device move along with the movable baffle.

In one embodiment of the present application, the disinfectant may be any liquid disinfectant capable of killing viruses and bacteria; in particular, hydrogen peroxide is used as the disinfectant in one particular embodiment of the present application.

In one embodiment of the present application, the killing of the virus and the bacteria can be performed by any killing means in the prior art, for example, any one of an ultraviolet sterilization device, an ozone sterilization device or a microwave sterilization device.

In a specific embodiment of the present application, the spacing between the fixed baffles is uniformly arranged, which is aimed at keeping the area of the ventilation cross section uniform for different filter units to adapt to the switch mechanism; meanwhile, the air volume and the temperature of the fan coil can be basically equivalent when different filtering units are killed.

In one embodiment of the present application, the filter 51 is a high efficiency filter capable of filtering and adsorbing viruses and bacteria in the gas flowing through the filter.

In one embodiment of the present application, each filter unit includes a high efficiency filter therein, and all filter units in the air duct can filter and adsorb viruses and bacteria.

In a particular embodiment of the present application, the filter may take any form of filter, preferably a straight panel filter, a V-bank filter, a W-bank filter, a bag filter, or a cylindrical filter.

When the fan coil needs to be disinfected and sterilized, a filter 51 to be sterilized is placed in the closed space 52 through a switch mechanism; then, a second fan 54 of the killing mechanism is started, a straight-through way of the electric three-way valve is opened (communicated with a disinfectant sprayer 55), the second fan 54 conveys the atomized disinfectant in the disinfectant sprayer 55 to the closed space 52, and the atomized disinfectant fully kills the filter 51; after the disinfection is finished for the set disinfection time, the filter 51 is disinfected, at this time, the electric three-way valve is reversed (communicated with the catalyst storage 56), and the catalyst in the catalyst storage 56 is conveyed to the closed space 52 by the second fan 54 to be used for decomposing the residual disinfectant in the closed space; after the catalyst is decomposed for a set time, the residual disinfectant in the closed space is completely decomposed, and at the moment, the movable baffle 531 moves to open the closed space 52; then, the flapper 531 moves to a set position according to the instruction of the control system.

In one embodiment of the present application, the control mechanism can automatically start or stop the killing of the filter unit according to a preset program.

In a particular embodiment of the present application, the fan coil further comprises a human-machine dialog interface; a technician can maintain a preset program through the man-machine conversation interface; meanwhile, an operator can intervene the control mechanism manually through the man-machine conversation interface to kill and kill.

In a specific embodiment of the present application, the killing mechanism is disposed outside the air duct and connected to the filter unit through a pipe. The pipe communicated with the filtering unit can be a hose; the length of the pipeline is required to ensure that the second fan can smoothly convey the disinfectant spray and the catalyst to the filtering unit in the closed space.

In a specific embodiment of the present application, the sterilizing mechanism may also be disposed inside the air duct, and the sterilizing mechanism may be disposed on the top and/or side of the filter unit, under the permission of the space inside the air duct, so that the disinfectant spray or catalyst can directly act on the filter unit to sterilize viruses and bacteria and decompose residual disinfectant.

The application also provides a fan coil operation method, wherein the fan coil comprises an air duct; the air duct comprises N filters which are arranged in parallel, wherein N is more than or equal to 2; the method comprises the following steps: one of the filters is enclosed in a closed space and is sterilized while the other filters filter air.

In a specific embodiment of the present application, the fan coil operating method described herein can kill viruses and bacteria that are filtered and adsorbed on the hepa filter.

The features mentioned in the claims and/or in the description may be combined and are not limited to the combinations mentioned in the claims. The technical solutions obtained by combining the technical features in the claims and/or the specification are also the scope of the present application.

The foregoing is a preferred embodiment of the present application, which is not intended to be limiting in any way, and any simple modifications, equivalent variations and modifications made to the foregoing embodiment according to the technical spirit of the present application are within the scope of the present application.

Claims

1. A fan coil, comprising:

the first fan is arranged on the air duct and communicated with the air duct;

the surface cooler is arranged around the air duct; and (c) and (d),

the gas filtering device comprises a filter, a control mechanism, a switch mechanism and a sterilizing mechanism; the filter is arranged in the filtering unit; the control mechanism is electrically connected with the switch mechanism and the killing mechanism; according to the command of the control mechanism, the switch mechanism closes the filter in one of the filter units, so that the filter is in the closed space formed by the switch mechanism, and the sterilizing mechanism sterilizes the filter in the closed space.

2. A fan coil as set forth in claim 1 wherein said air duct is a square air duct comprising an upper panel, a lower panel, and a pair of sidewalls; the fixed baffle is parallel to a pair of side walls of the square air duct; and two ends of the fixed baffle are respectively connected with the upper panel and the lower panel of the square air duct.

3. A fan coil as set forth in claim 2 wherein said switch mechanism comprises two movable shutters; the movable baffle is respectively arranged at the air inlet end and the air outlet end of the filtering unit; the movable baffle plate and the fixed baffle plate, the upper panel and the lower panel can be connected with each other to form a closed space.

4. A fan coil as set forth in claim 3 wherein said switch mechanism comprises a kinematic unit; the control mechanism can control the moving unit to move the movable baffle.

5. A fan coil as set forth in claim 4 wherein said motion unit comprises a slide bar, a slider, and a drive motor; the sliding block is fixedly connected to the movable baffle; the driving motor drives the sliding block to move along the sliding rod.

6. A fan coil as set forth in claim 4 wherein said movable baffle is disposed upstream and downstream of said filter perpendicular to said fixed baffle; the control mechanism can control the motion unit to move the movable baffle.

7. A fan coil as set forth in claim 3 wherein said switch mechanism comprises a sealed unit; the control mechanism can control the sealing unit to enable the filter to be disinfected and sterilized to be in the closed space.

8. A fan coil as set forth in claim 1 wherein said disinfecting mechanism comprises a second fan and a disinfectant mister and/or catalyst reservoir disposed in parallel; the second fan is capable of delivering a disinfectant spray generated by the disinfectant sprayer to the filter unit; alternatively, the second fan can deliver catalyst from the catalyst reservoir to the filtration unit.

9. A fan coil as set forth in claim 8 wherein said killing mechanism further comprises a first electrically operated three-way valve and a second electrically operated three-way valve; one end of the first electric three-way valve is connected with the second fan, and the other two ends of the first electric three-way valve are respectively connected with the disinfectant sprayer and the catalyst storage; one end of the second electric three-way valve is connected with the filtering unit, and the other two ends of the second electric three-way valve are respectively connected with the disinfectant sprayer and the catalyst storage.

10. A fan coil as set forth in any one of claims 3-7 wherein said killing mechanism further comprises a nozzle and a spray line; the nozzle and the spraying pipeline are both arranged on the movable baffle.

11. A fan coil as set forth in claim 1 wherein said filter is a high efficiency filter; the filter is a straight plate type filter, a V-shaped filter, a W-shaped filter, a cloth bag type filter or a cylindrical filter.

12. A fan coil operation method is characterized in that the fan coil comprises an air duct; the air duct comprises at least two filters which are arranged in parallel; the method comprises the following steps:

one of the filters is enclosed in a closed space and is sterilized while the other filters filter air.