CN201293409Y - Fresh air handling unit - Google Patents
Fresh air handling unit Download PDFInfo
- Publication number
- CN201293409Y CN201293409Y CNU2008201856368U CN200820185636U CN201293409Y CN 201293409 Y CN201293409 Y CN 201293409Y CN U2008201856368 U CNU2008201856368 U CN U2008201856368U CN 200820185636 U CN200820185636 U CN 200820185636U CN 201293409 Y CN201293409 Y CN 201293409Y
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- blower fan
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Abstract
The utility model discloses a new blower fan set comprising a blower fan section, a flow equalizing, medium-effect and sub-high-efficiency section and a surface cooling, reheating and air supplying section, the draught fan section is provided with a primary filter, a variable-frequency motor and a centrifugal blower fan in sequence, the flow equalizing, medium-effect and sub-high-efficiency section is provided with a flow equalizing plate, a medium-effect filter and a sub-high-effect filter in sequence inside. The utility model is characterized in that the surface cooling, reheating and air supplying section is respectively provided with a water-cooling pipe coil and direct evaporation pipe coil, the water-cooling pipe coil is provided with an intake pipe and outtake pipe interface, the direct evaporation coil pipe is provided with a inlet and outlet interface for refrigerant. The utility model improves energy conservation effect, conveniently and effectively resolves control problem of humiture of key section offices of hospital by arranging a water-cooling pipe coil and direct evaporation pipe coil in the surface cooling, reheating and air supplying section.
Description
Technical field
The utility model relates to a kind of air treatment system, is specifically related to a kind of terminal fresh air processor group that is applicable to air-conditioner water system, mainly is applicable to the crucial section office and the place of the accurate controls of room air parameter need such as hospital operating room.
Background technology
The indoor environmental condition control of hospital requires to divide usually two classes, and a class is general section office and the public ward that has a large capacity and a wide range, and common property comfort air conditioning just can be realized these regional air-conditioning requirements; Another kind of is the less relatively crucial section office that have aseptic control to require of quantity, and as operating room etc., their environment is annual to need accurately control.Chinese large-sized general hospital adopts central air-conditioning system usually, is concentrated by central authorities of hospital Cooling and Heat Source and supplies with required chilled water of each function section office air-conditioning and heating hot water.The air-conditioning system end of each function section office generally includes new blower fan group and return air unit, satisfying indoor temperature, humidity requirement, and avoids bacterium and gas concentration lwevel to exceed standard.Control such as temperature, humidity requires high more, the energy consumption of consumption is just many more, and is also high to the requirement of building enclosure, and briefly, the environment of high request is to be cost with the construction of great number and operating cost.So operating room, Burn Ward etc. very easily are arranged to crucial section office because of bacterium in the air causes infection and temperature, humidity to far-reaching these places of wound, and its environment control requires also to reach height; And general section office are arranged in places such as public ward, air-conditioning requirement also is a comfortableness.
The air-conditioning system configuration of typical hospital, some problems below in whole year operation, tending to occur:
(1) in order to guarantee certain crucial section office humidity control requirement, under air-conditioning cooling operating mode, usually the chilled water leaving water temperature is set at 7 ℃ (even lower).Past usually adopts traditional primary retirn air to heat in order to guarantee crucial section office Temperature and Humidity Control again, nowadays for the energy-conservation secondary return air of having to again adopt.Because these section office's heat moisture ratios are less, make that the apparatus dew point of the required control of air-conditioning unit is lower.
(2) descend with outside air temperature during the air-conditioning,, usually improve and concentrate the water temperature of supplying with chilled water, objectively cause crucial section office humidity to exceed standard for guaranteeing most general section office's air-conditioning requirements and energy-conservation needs.
(3) the crucial section office of large hospital can be in the building inner region usually, and in the time of maybe need heating (winter), these crucial section office still need cooling when common section office do not need cooling (excessively season).
(4) according to investigations, mostly hospital for various reasons in cooling actual motion in season chilled water can't guarantee 7 ℃ of supply water temperatures (even having reached this temperature sometimes), crucial section room temperature humidity is difficult to guarantee.
For the ease of control general section office of hospital and crucial section room environmental, improve system's efficiency of energy utilization, the Air-conditioner design person of hospital or concentrate chilled water to be divided into two systems full institute and supply with perhaps is separately that crucial section office dispose air conditioner cold-heat sources now.But for existing hospital architecture, it is too big to adopt such technology to transform financial resources, material resources, the manpower of cold supply system cost, and spended time is also many.Hospital has to sacrificialing environment control to remain stationary mostly, can't satisfy " Standard for daylighting design of industrial enterprises " GB50333-2002[2] the Temperature and Humidity Control requirement of crucial section office in (hereinafter to be referred as " standard "), and general section office of hospital and crucial section office are to chilled water supply water temperature demand contradictory.
General section office of hospital are different to chilled water supply water temperature demand with crucial section office, are because both humidity controls require different.For fear of adopting the power consumption measure that drags down whole hospital chilled water water temperature because of the humidity control of the crucial section office of minority, have only new wind to carry out advanced treating to eliminate new rheumatism load with crucial section office, even bear indoor humidity load, reduce former terminal unit dehumidifying requirement, just might make terminal unit use the chilled water of higher water temperature, this should be the simplest and easy, effective method.This method is that whole hospital air-condition freezing coolant-temperature gage is required to determine that by the room environmental control of general section crucial section office solve indoor temperature and humidity control by new wind advanced treating.Utilize new wind preliminary treatment notion at present, improve the humidity disposal ability of original system, obtained certain effect to improve indoor air quality.But the new pretreated main purpose of wind is reducing energy consumption, can not satisfy the control requirement of crucial section office for humiture fully, thereby also exist deficiency.
Summary of the invention
The utility model purpose provides a kind of new blower fan group, and the improvement by to structure has improved energy-saving effect, and solves the Temperature and Humidity Control of crucial section office easily and effectively.
For achieving the above object, the technical solution adopted in the utility model is: a kind of new blower fan group, comprise fan section, current-sharing, middle effect is with efficient section of Asia and show cold, heat and air supply section again, be disposed with low efficient filter in the described fan section, variable-frequency motor and centrifugal blower, described current-sharing, in imitate and inferior efficient section in be disposed with homogenizing plate, medium effeciency filter and inferior high efficiency filter, described table is cold, be respectively arranged with water-cooled coil pipe and direct vaporation-type coil pipe again in heat and the air supply section, described water-cooled coil pipe is provided with water inlet pipe and outlet pipe interface, and described direct vaporation-type coil pipe is provided with cold-producing medium and advances, outgoing interface.
In the technique scheme, described water-cooled coil pipe connects the chilled water system of central air-conditioning, and described direct vaporation-type coil pipe is connected with the refrigeration machine of peripheral hardware, forms a complete air-conditioning system.
Cold at table, again in heat and the air supply section, the water-cooled coil pipe and directly the position of the relative air supply direction of vaporation-type coil pipe can change, following two kinds of set-up modes promptly can be arranged: one, described water-cooled coil pipe is positioned at the windward end, direct vaporation-type coil pipe is positioned at the leeward end.Its two, described direct vaporation-type coil pipe is positioned at the windward end, the water-cooled coil pipe is positioned at the leeward end.Wherein, optimized technical scheme is, described water-cooled coil pipe is positioned at the windward end, and directly the vaporation-type coil pipe is positioned at the leeward end.
Above, because general section office of hospital require different with crucial section office because of humidity control, the chilled water supply water temperature is needed also different, for fear of because of the humidity control of the crucial section office of minority reduces whole hospital chilled water water temperature, then need the new wind of crucial section office is carried out advanced treating to eliminate new rheumatism load.Owing to be provided with water-cooled coil pipe and direct vaporation-type coil pipe in this new blower fan group, can utilize the chilled water of central air conditioner system that new air cooling is dried during use earlier, and then use the direct vaporation-type coil pipe that is provided with the in addition cooling of drying once more to reach needed apparatus dew point, utilize the heating of self condenser to control to required ventilation state point at last, unnecessary condensation heat is discharged by the outer blower fan condenser unit of machine.
In using summer, because new blower fan group is provided with water-cooled coil pipe and direct vaporation-type coil pipe, at first control new wind and reach required apparatus dew point temperature through water-cooled coil pipe and evaporator two-stage cool-down dehumidification, the whole humidity loads of elimination system, control condenser again and add heat and reach required wind pushing temperature, unnecessary heat is discharged by the machine external condenser.Reduce clammy energy consumptions but such as Cycle Unit, can use the chilled water of higher water temperature fully, finished the Temperature and Humidity Control of crucial section office.In the winter time, crucial section office usually can be in the inner region of hospital architecture, and air-conditioning system transfers the heat supply operating mode to, the outskirt heat supply, and inner region still needs cooling, needs heat supply in addition before the operation beginning of operation portion, needs to switch to cooling when normally performing the operation again.Use this new blower fan group, although what move in the water coil in the winter time is hot water, but direct-expansion coil still can be in refrigerating state, before the operation beginning, only need to open hot-water coil pipe, close direct-expansion coil, outdoor air is carried out warming and humidifying handle, indoor Cycle Unit also heats circulating air.When operation was carried out, hot-water coil pipe was closed, and opened direct-expansion coil again, and new wind is freezed.Utilize direct-expansion coil and condenser total energy to guarantee to focus on the state point that new wind is stabilized in to be needed, this state point makes novel wind energy enough eliminate the design heating load in the operating room, and the variation of indoor load is then heated solution again by Cycle Unit.At transition season, because crucial section office still need heat supply cold, only need the direct vaporation-type coil pipe of operation this moment, regulates the cooling amount of evaporimeter and the heating load of condenser, just can effectively realize the control of humiture.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
The utility model by cold at table, again water-cooled coil pipe and direct vaporation-type coil pipe be set in heat and the air supply section, combine chilled water system and direct-expansion type system, cool-down dehumidification speed is fast, compact conformation, be easy to control, improve the running quality of VMC, solved the Temperature and Humidity Control problem of crucial section office of hospital conveniently, effectively, reduced the risk that the Cycle Unit secondary system pollutes.
2. use of the present utility model has been avoided the large-scale redevelopment of original air-conditioning system and has been improved the operating efficiency of original system, has also saved the energy.
3. the special-purpose new blower fan group of the two low-temperature receivers that the utility model proposes is simple in structure, control is easy, easy to maintenance, cheap for manufacturing cost, is fit to promote the use of.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment one;
Accompanying drawing 2 focuses on the secondary return air system curve map for new wind among the utility model embodiment one;
Accompanying drawing 3 is a dry coil pipe treatment system curve map among the utility model embodiment one;
Accompanying drawing 4 is a humidity priority treatment system curve map among the utility model embodiment one.
Wherein: 1,1, low efficient filter; 2, variable-frequency motor; 3, centrifugal blower; 4, homogenizing plate; 5, medium effeciency filter; 6, inferior high efficiency filter; 7, water-cooled coil pipe; 8, direct vaporation-type coil pipe.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 1, a kind of new blower fan group, comprise fan section, current-sharing, middle effect is with efficient section of Asia and show cold, heat and air supply section again, be disposed with low efficient filter 1 in the described fan section, variable-frequency motor 2 and centrifugal blower 3, described current-sharing, in imitate and inferior efficient section in be disposed with homogenizing plate 4, medium effeciency filter 5 and inferior high efficiency filter 6, described table is cold, be disposed with water-cooled coil pipe 7 and direct vaporation-type coil pipe 8 again in heat and the air supply section, described water-cooled coil pipe is provided with water inlet pipe and outlet pipe interface, be connected with the chilled water system of central cooling system, described direct vaporation-type coil pipe two ends are respectively arranged with cold-producing medium and advance, outgoing interface, be connected with the small-sized refrigerator of peripheral hardware, form a complete air-conditioning system.
In use, clean operation department adopts industrial traditional constant-temperature constant-humidity air-conditioner mostly, and promptly primary retirn air heats again,, shown in accompanying drawing 2, implements " humidity in advance " robot control system(RCS) afterwards because energy-conservation needs begin to adopt secondary return air system.It mainly is to eliminate new wind load that new wind focuses on, stable to keep whole system.Operation portion concentrates humidity load in the decontamination chamber of blowing at first, again by thermic load in the Cycle Unit control room, has so just realized that humidity preferentially controls.Be higher than indoor dew-point temperature if Cycle Unit inner coil pipe supply water temperature is controlled at all the time, then can realize the dry coil pipe operation, shown in accompanying drawing 3.But for operating room, because the indoor germ-free condition that is in there is no need painstakingly to keep the dry coil pipe operation.Then can simplify air-conditioner water system, system that Here it is " humidity is preferentially controlled ", shown in accompanying drawing 4, this system reaches new wind to handle required machine dew or ventilation state, because new blower fan group is utilized the secondary cooling dehumidification, the guard system chilled water temperature is not how, all can guarantee easily, keeps the room air state in permissible range with lower energy consumption.
From the above analysis as can be known, adopt two low-temperature receiver fresh air processor groups of present embodiment, do not need to change the structure of original system, not only can solve the Temperature and Humidity Control of crucial section office effectively, and also be the most easy method of the crucial section office's reducing energy consumption of hospital.In the energy consumption analysis of system, adopt two new blower fan groups of low-temperature receiver also can reach purpose of energy saving.
1) makes full use of the heat of condenser in the new blower fan group of two low-temperature receivers, avoided consuming the too much energy of heating again.
2) in the new blower fan group of two low-temperature receivers the direct-expansion type evaporimeter directly and air carry out heat exchange, rather than traditional secondary heat exchange, heat exchange efficiency improves greatly, has avoided the waste of cold.
3) when adopting the humidity priority control system, the room air Cycle Unit only need be lowered the temperature to air, hyperthermic treatment, and the energy that needs is few.And the terminal unit of this moment can the higher chilled water of serviceability temperature.
In addition, the two new blower fan groups of low-temperature receiver of use have been avoided the large-scale redevelopment of original system and have been avoided the ruuning situation of original system under inefficient operating mode, have saved the energy to a certain extent.
Embodiment two: a kind of new blower fan group, comprise fan section, current-sharing, middle effect is with efficient section of Asia and show cold, heat and air supply section again, be disposed with low efficient filter in the described fan section, variable-frequency motor and centrifugal blower, described current-sharing, in imitate and inferior efficient section in be disposed with homogenizing plate, medium effeciency filter and inferior high efficiency filter, described table is cold, be disposed with direct vaporation-type coil pipe and water-cooled coil pipe in heat and the air supply section again, described direct vaporation-type coil pipe two ends are respectively arranged with refrigerant inlet and refrigerant outlet, be connected with the small-sized refrigerator of peripheral hardware, described water-cooled coil pipe two ends are provided with cooling water inlet and cooling water outlet, are connected with the chilled water system of central cooling system.
Claims (3)
1. new blower fan group, comprise fan section, current-sharing, middle effect is with efficient section of Asia and show cold, heat and air supply section again, be disposed with low efficient filter (1) in the described fan section, variable-frequency motor (2) and centrifugal blower (3), described current-sharing, in imitate and inferior efficient section in be disposed with homogenizing plate (4), medium effeciency filter (5) and inferior high efficiency filter (6), it is characterized in that: described table is cold, be respectively arranged with water-cooled coil pipe (7) and direct vaporation-type coil pipe (8) again in heat and the air supply section, described water-cooled coil pipe is provided with water inlet pipe and outlet pipe interface, and described direct vaporation-type coil pipe is provided with cold-producing medium and advances, outgoing interface.
2. new blower fan group according to claim 1 is characterized in that: described water-cooled coil pipe connects the chilled water system of central air-conditioning, and described direct vaporation-type coil pipe is connected with the refrigeration machine of peripheral hardware, forms a complete air-conditioning system.
3. new blower fan group according to claim 1 is characterized in that: described water-cooled coil pipe is positioned at the windward end, and directly the vaporation-type coil pipe is positioned at the leeward end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201856368U CN201293409Y (en) | 2008-09-10 | 2008-09-10 | Fresh air handling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201856368U CN201293409Y (en) | 2008-09-10 | 2008-09-10 | Fresh air handling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201293409Y true CN201293409Y (en) | 2009-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201856368U Expired - Fee Related CN201293409Y (en) | 2008-09-10 | 2008-09-10 | Fresh air handling unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN201293409Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893295A (en) * | 2010-07-20 | 2010-11-24 | 苏州大学 | Fresh air handling unit |
| CN103542455A (en) * | 2013-10-14 | 2014-01-29 | 航天环境工程有限公司 | Building central air conditioning unit capable of removing fine particles |
| CN104315606A (en) * | 2014-11-24 | 2015-01-28 | 苏州医电神空调设备工程有限公司 | Pressure-equalizing silencing air conditioning unit |
| CN105617772A (en) * | 2014-11-05 | 2016-06-01 | 珠海格力电器股份有限公司 | Ventilation filter |
| CN114963354A (en) * | 2021-05-10 | 2022-08-30 | 航天建筑设计研究院有限公司 | Purification system and building thereof |
-
2008
- 2008-09-10 CN CNU2008201856368U patent/CN201293409Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893295A (en) * | 2010-07-20 | 2010-11-24 | 苏州大学 | Fresh air handling unit |
| CN103542455A (en) * | 2013-10-14 | 2014-01-29 | 航天环境工程有限公司 | Building central air conditioning unit capable of removing fine particles |
| CN103542455B (en) * | 2013-10-14 | 2016-04-06 | 航天环境工程有限公司 | A kind of Central Air Conditioner Used in Buildings unit removing fine particle |
| CN105617772A (en) * | 2014-11-05 | 2016-06-01 | 珠海格力电器股份有限公司 | Ventilation filter |
| CN104315606A (en) * | 2014-11-24 | 2015-01-28 | 苏州医电神空调设备工程有限公司 | Pressure-equalizing silencing air conditioning unit |
| CN114963354A (en) * | 2021-05-10 | 2022-08-30 | 航天建筑设计研究院有限公司 | Purification system and building thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20170910 |