CN2663855Y - Low-temperature blowing machine set - Google Patents
Low-temperature blowing machine set Download PDFInfo
- Publication number
- CN2663855Y CN2663855Y CN 03264000 CN03264000U CN2663855Y CN 2663855 Y CN2663855 Y CN 2663855Y CN 03264000 CN03264000 CN 03264000 CN 03264000 U CN03264000 U CN 03264000U CN 2663855 Y CN2663855 Y CN 2663855Y
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- air
- casing
- sensible heat
- heat exchanger
- case
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- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The utility model relates to a low-temperature blowing machine set, which comprises a case, a filter, an evaporator, a centrifugal blower and a blowing opening, wherein, the filter is arranged at the air inlet of the case. The centrifugal blower is arranged inside the case, the air outlet of which is communicated with the blowing opening of the case. The utility model is characterized in that the evaporator is arranged inside the case and a prominent heat exchanger is arranged at the back of the air inlet of the case. The utility model enables the prominent device in the room to run the dry situations, thereby eliminating environment for returning of harmful bacterial, avoiding air intersected disinfection and reducing energy consumption and operation expenditure.
Description
Technical field
The utility model relates to central air conditioner system.For a kind of evaporimeter with refrigeration unit, sensible heat exchanger are installed in new blower fan group inside, send the central air-conditioning system blowing device of 7 ℃ of new wind of low temperature, the new blower fan group of promptly a kind of cold air distribution by new blower fan group.
Technical background
The development of modern architecture has proposed some new requirements to central air conditioner system, for example desirable indoor humidity, and the air circulation environment of cleaning, health is to avoid bad air cross-infection or the like.
Existing centralized, half central air-conditioning system roughly has primary air fan-coil system (air water systen) and two kinds of forms of all-air system.Referring to Fig. 1, the operation principle of primary air fan-coil system is: make cold water by the refrigeration plant as low-temperature receiver, cold water is admitted to and is installed in indoor fan coil 4, by surface-cooler (coil pipe) in the fan coil 4 and air heat exchange, reduce indoor temperature and reach the purpose of regulating indoor temperature.The fresh air of indoor needs is provided by new blower fan group 1, new blower fan group 1 inside is equipped with the surface-cooler of logical cold water equally, outdoor fresh air by after the surface-cooler reduction temperature, forms about 28 ℃ new wind in new blower fan group 1, deliver to each room by airduct 2 and air outlet 3.This system is owing to need the latent heat load and the sensible heat load (needing dehumidifying) of fan coil 4 burden room airs, and fan coil 4 is to move under wet cooling condition, and the water temperature of sending into fan coil 4 and new blower fan group 1 is 7 ℃, and the water of outflow is 12 ℃.There is condensed water to accumulate on the water pond of fan coil 4, discharges by drainpipe.Therefore, the water pond of fan coil 4 is in dampness for a long time, very easily grows germ, its harmful germ along with fan coil to indoor air-supply, the repeated infection room air.Especially serious in indoor places such as hospitals.In addition, referring to Fig. 2, the operation principle of all-air system is: make cold water by the refrigeration plant as low-temperature receiver, water temperature is 7 ℃.Cold water is admitted to the air-treatment unit 7 that is installed in the building equipment usefulness room, by surface-cooler (coil pipe) in the air-treatment unit 7 and air heat exchange, reduce air themperature, Cryogenic air is sent to each room by airduct 2 and air outlet 3, reaches the purpose of regulating indoor temperature.Fresh air 5 mixes the back by surface-cooler (coil pipe) cooling by outdoor introduction air-treatment unit 7 with return air 6 from each room, deliver to each room together.Shown in the figure, label 8 is indoor return air inlet, and label 9 is indoor furred ceiling.This system is from reducing the angle of indoor humidity, energy resource consumption, operating cost and equipment investment, generally can not be with the form operation of all new wind, room air must be guided in the air-treatment unit 7 by the return air airduct or the indoor ceiling void, and be sent again after fresh air mixes.Like this, all will mix from the air in each room and to deliver to each room again, germ, air pollution, bad smell appear in certain room all can propagate into all rooms immediately.In case it is very dangerous especially infectious disease to occur.
Along with the development of modern architecture, central air conditioner system has been proposed some new requirements, for example desirable indoor humidity, the air circulation environment of cleaning, health is to avoid bad air cross-infection or the like.And all there is the problem of air cross-infection in existing air-conditioning system.
Summary of the invention
The purpose of this utility model is to solve the problem that above-mentioned existing air-conditioning system exists, provide a kind of and can make the air-conditioning system sanitation and hygiene, thoroughly prevent bad aerial infection, and can reduce indoor end-equipment specification, reduce end-equipment quantity, reduce investment outlay, reduce greatly the new blower fan group of cold air distribution of energy resource consumption.
The new blower fan group of this cold air distribution includes casing, filter, evaporimeter, centrifugal blower and air outlet, filter is installed in the air inlet place of casing, centrifugal blower is installed in the casing, its air outlet communicates with the air outlet of casing, it is characterized in that: described evaporimeter is installed in the casing, and further including sensible heat exchanger, this sensible heat exchanger also is installed in air inlet back in the casing.Corresponding sensible heat exchanger place is provided with air draft inlet and wind exhausting outlet on casing, and this air draft inlet communicates with the air inlet of sensible heat exchanger, and its wind exhausting outlet communicates with the air outlet of sensible heat exchanger.
The new blower fan group of cold air distribution of the present utility model is compared with existing general new blower fan group has following 2 difference: be to air cooling-down by flowing cold water in the surface-cooler in the general new blower fan group 1,, because water temperature is higher than 5 ℃ at least, temperature after the air-treatment is more than 12 ℃, be higher than indoor dew-point temperature, can not bear whole latent heat loads, fan coil is to move under wet cooling condition.And the new blower fan group of low temperature of the present utility model is the cold-producing medium that flows by in the evaporimeter, according to the kind of refrigeration cycle principle air cooling-down is handled, temperature after the air-treatment is lower than indoor dew-point temperature, can bear whole latent heat loads and part sensible heat load, sensible heat equipment can guarantee to move under dry cooling condition.2, general new blower fan group does not have heat-exchanger rig, and the utility model is equipped with sensible heat exchanger.This sensible heat exchanger carries out heat exchange between air draft and fresh air under isolated fully state, reduced the fresh air temperature, has saved the energy.The new blower fan group of this cold air distribution is owing to adopt above-mentioned structure to have following tangible advantage: 1. this air-conditioning system does not have the return air processing procedure, has avoided the air cross-infection, uses cleaning and health; When 2. working, mixes with room air in 7 ℃ the dry cold wind inlet chamber, reduced the dew-point temperature of room air, sensible heat equipment be can be implemented under the dry cooling condition move, be in drying regime, avoid growing germ as the water pond of the fan coil of sensible heat equipment; 3. because new wind-warm syndrome degree is low, air quantity is little, thereby reduced the specification of new wind treatment facility; 4. because indoor sensible heat equipment is only born the fraction sensible heat load, the specification quantity of sensible heat equipment reduces; 5. because the reducing of specification of equipment, thereby reduce energy resource consumption, reduced its operating cost; 6. sensible heat exchanger has been saved the energy by the form of air draft and fresh air heat exchange, and has guaranteed that both are isolated mutually.
Description of drawings
Fig. 1 is the air-conditioning system work schematic diagram of existing fan-coil unit with fresh air;
Fig. 2 is the work schematic diagram of existing all-air conditioning system;
Fig. 3 is a structural representation of the present utility model.
Number in the figure is described as follows:
1, new blower fan group; 2, airduct; 3, air outlet; 4, fan coil;
5, new wind; 6, return air; 7, air processing machine; 8, return air inlet;
9, furred ceiling; 10, casing; 11, filter; 12, evaporimeter;
13, centrifugal blower; 14, air outlet; 15, sensible heat exchanger; 16, air draft inlet;
17, wind exhausting outlet;
The specific embodiment
The specific embodiment of the present utility model is that the evaporimeter 13 of refrigeration machine and sensible heat exchanger 11 are installed in the casing of the new blower fan group of cold air distribution.
Referring to Fig. 3, the new blower fan group of cold air distribution of the present utility model includes casing 10, filter 11, evaporimeter 12, centrifugal blower 13 and air outlet 14, the casing of the similar as existing air-conditioning system of this body structure, filter 11 is installed in the air inlet place of casing 10, centrifugal blower 13 is installed in the casing, its air outlet communicates with the air outlet 14 of casing 10, and above-mentioned all devices all adopts existing equipment, no longer elaborates at this.Described evaporimeter 12 is installed in the casing 10, and further includes sensible heat exchanger 15, and this sensible heat exchanger 15 also is installed in air inlet back in the casing 10.Corresponding sensible heat exchanger place is provided with air draft inlet 16 and wind exhausting outlet 17 on casing 10, the communicating of the air inlet of this air draft inlet 16 and sensible heat exchanger 15, and its wind exhausting outlet 17 communicates with the air outlet of sensible heat exchanger 15.
Above-mentioned evaporimeter is installed in the casing 10, makes according to the evaporimeter of general refrigeration plant.The cold-producing medium of this evaporimeter 12 is imported and exported by pipeline and the outer refrigeration machine of casing and is joined.
Above-mentioned sensible heat exchanger 15 is installed in the casing 10, and it has air inlet and air outlet, and its air inlet links to each other by the exhaust outlet of airduct with indoor exhaust wind equipment by air draft inlet 16.This sensible heat exchanger 15 has architectural feature (the similar existing heat exchanger of heat exchange, do not describe in detail at this), be used for the fresh air that enters from filter 11 in the casing 10 is carried out cold and hot exchange, save the energy, can bear whole latent heat loads and part sensible heat load, sensible heat equipment can guarantee to be to move under the operating mode.
Its operation principle is: the low-temperature refrigerant of being sent here by the compressor of refrigeration machine enters evaporimeter, and by evaporimeter and air heat exchange.The evaporating temperature of evaporimeter is for being lower than 0 ℃.Under the effect of centrifugal blower, outdoor fresh air enters in the casing 10 of new blower fan group, and through the coil pipe of evaporimeter 12, the heat exchange cooling is reduced to 7 ℃ from 35 ℃ and delivered to indoor.New blower fan group is in to the outdoor fresh air cooling, and also the water capacity with air drops to very low.Because the fresh air that cooling was handled has only 7 ℃, so carry out the needed resh air requirement of adjustment seldom to indoor.Mix with room air in 7 ℃ the cold wind inlet chamber, reduced indoor air temperature and humidity, born indoor whole latent heat load and most of sensible heat load.The rest parts sensible heat load is by the sensible heat device assumes, and sensible heat equipment can be radiation furred ceiling, fan coil or other airhandling equipment.The indoor in use exhaust equipment that is provided with is according to the air quantity air draft that is slightly less than resh air requirement.Temperature of outgoing air is roughly indoor air temperature in air conditioned building, the air draft inlet of new blower fan group is got back in air draft by airduct, from the sensible heat exchanger process, the fresh air that enters with the new blower fan group of low temperature air inlet under isolated fully state carries out heat exchange, reduces the fresh air temperature.
Claims (3)
1, the new blower fan group of cold air distribution, include casing (10), filter (11), evaporimeter (12), centrifugal blower (13) and air outlet (14), filter (11) is installed in the air inlet place of casing (10), centrifugal blower (13) is installed in the casing, its air outlet communicates with the air outlet (14) of casing (10), it is characterized in that: described evaporimeter (12) is installed in the casing (10), and further including sensible heat exchanger (15), this sensible heat exchanger (15) also is installed in the interior air inlet of casing (10) back; Go up corresponding sensible heat exchanger (15) at casing (10) and locate to be provided with air draft inlet (16) and wind exhausting outlet (17).
2, the new blower fan group of cold air distribution according to claim 1 is characterized in that: the communicating of the air inlet of this air draft inlet (16) and sensible heat exchanger (15), its wind exhausting outlet (17) communicates with the air outlet of sensible heat exchanger (15).
3, the new blower fan group of cold air distribution according to claim 1 and 2, it is characterized in that: evaporimeter is installed in the casing, and the cold-producing medium of evaporimeter is imported and exported and is connected with refrigeration machine by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264000 CN2663855Y (en) | 2003-06-10 | 2003-06-10 | Low-temperature blowing machine set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264000 CN2663855Y (en) | 2003-06-10 | 2003-06-10 | Low-temperature blowing machine set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2663855Y true CN2663855Y (en) | 2004-12-15 |
Family
ID=34329616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03264000 Expired - Fee Related CN2663855Y (en) | 2003-06-10 | 2003-06-10 | Low-temperature blowing machine set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2663855Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411271A (en) * | 2013-08-28 | 2013-11-27 | 广东国得科技发展有限公司 | Air conditioner dehumidification unit and dehumidification method |
| CN110260500A (en) * | 2019-06-18 | 2019-09-20 | 兰舍通风***有限公司 | The frost protection air mixing device of fresh air host |
-
2003
- 2003-06-10 CN CN 03264000 patent/CN2663855Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411271A (en) * | 2013-08-28 | 2013-11-27 | 广东国得科技发展有限公司 | Air conditioner dehumidification unit and dehumidification method |
| CN110260500A (en) * | 2019-06-18 | 2019-09-20 | 兰舍通风***有限公司 | The frost protection air mixing device of fresh air host |
| CN110260500B (en) * | 2019-06-18 | 2024-05-28 | 兰舍通风***有限公司 | Frost-proof air mixing device of fresh air host |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |