CN110043966A - A kind of big temperature-difference fan coil - Google Patents
A kind of big temperature-difference fan coil Download PDFInfo
- Publication number
- CN110043966A CN110043966A CN201910360895.2A CN201910360895A CN110043966A CN 110043966 A CN110043966 A CN 110043966A CN 201910360895 A CN201910360895 A CN 201910360895A CN 110043966 A CN110043966 A CN 110043966A
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- CN
- China
- Prior art keywords
- water
- group
- air cooler
- surface air
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
The present invention relates to a kind of big temperature-difference fan coils, including body fuselage, body fuselage is equipped with feed water inlet and water return outlet, the side of body fuselage is equipped with blower, and the side opposite with blower is equipped with air outlet, and body fuselage bottom is equipped with water-collecting tray, water-collecting tray is equipped with discharge outlet, heat exchanger apparatus is equipped with inside body fuselage, heat exchanger apparatus includes first group of surface air cooler and second group of surface air cooler made of tandem compound, and hot and cold water flows into second group of surface air cooler after first group of surface air cooler exchanges heat again.The invention has the benefit that heat exchanger may be implemented 8 DEG C -16 DEG C of supply backwater temperature difference under the premise of guaranteeing former conventional blower coil pipe refrigerating capacity, to reduce quantity of circulating water, air-conditioning system is reduced to reduce initial cost for the selection specification of return pipe and have reached the reduction of energy consumption to the influence of installation space, the reduction of water while to the flow of water pump, power reduction.
Description
Technical field
The present invention relates to field of heating ventilation air conditioning, it particularly relates to a kind of big temperature-difference fan coil.
Background technique
Fan coil units belong to the indispensable end regulating device of half traditional central air-conditioning system of air-water.
Air where fan coil constantly recycles in space is allowed to constantly pass through cold water menstrual period internal exchanger and pipe is outer
Air heat-exchange keeps air constantly cooled, dehumidifies and adjust indoor air parameter.Existing air conditioning terminal fills both at home and abroad at present
It sets and wants to match with water cooler, it is specified under standard condition cooling supply (27 DEG C of dry-bulb temperature of air inlet, 19.5 DEG C of wet-bulb temperature)
Inflow temperature is 7 DEG C, and specified leaving water temperature is 12 DEG C, and the chilled water supply backwater temperature difference as refrigerant is 5 DEG C, such as Fig. 1-2 institute
Show.
When cooling capacity provided by equipment being wanted to meet required load in engineering design under this operating condition, the water supply that needs
Larger, the corresponding corresponding increasing of water-system pipeline by air pipe well is measured, while the increasing of water flow makes the water circulating pump energy consumption of chilled water
It is higher.
It is higher in view of premise central air-conditioning system initial cost, operating cost is high, integral air conditioner system initial cost, operation energy consumption
It is bigger than normal.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For above-mentioned technical problem in the related technology, the object of the present invention is to provide a kind of big temperature-difference fan coil, two
Group surface air cooler respectively in the space of place air carry out heat exchange, to chilled water carry out cascade utilization, thus expand chilled water into
5 DEG C of cold water temperature difference of conventional design are increased to 8 DEG C -16 DEG C by the temperature difference of blowing machine coil pipe, and the energy consumption of chilled water pump can drop significantly
It is low, when the temperature difference big using cold water, engineering construction initial cost and later period O&M cost can be effectively reduced, while building can be saved
Chilled water in system is carried out cascade utilization to increase the temperature difference of access device, so as to water flow whole in reduction system by space
Amount is to reduce initial cost and water pump operation energy consumption.
The purpose of the present invention is be achieved through the following technical solutions: a kind of big temperature-difference fan coil, including body fuselage,
The body fuselage is equipped with feed water inlet and water return outlet, and the side of the body fuselage is equipped with blower, opposite with the blower
Side is equipped with air outlet, and the body fuselage bottom is equipped with water-collecting tray, and the water-collecting tray is equipped with discharge outlet, the body fuselage
Inside is equipped with heat exchanger apparatus, and the heat exchanger apparatus includes that first group of surface air cooler and second group of table made of tandem compound are cold
Device, first group of surface air cooler are equipped with first group of surface air cooler water inlet and first group of surface air cooler water outlet, set on second group of surface air cooler
There are second group of surface air cooler water inlet and second group of surface air cooler water outlet, first group of surface air cooler water inlet and the feed water inlet phase
Connection, second group of surface air cooler water outlet are connected with the water return outlet, and hot and cold water is after first group of surface air cooler heat exchange
Second group of surface air cooler is flowed into again.
It is identical as conventional air-conditioning heat exchange principle except reduction room when room air exchanges heat through first group of surface air cooler in the present invention
Can be realized simultaneously the function of dehumidifying outside inner circulating air temperature, the supply water temperature of second group of surface air cooler is 12 DEG C in unit, with
Room air carries out again utilization of the heat exchange to chilled water self-energy again.
In design of air conditioning, air-conditioning system water ga(u)ge calculates formula are as follows:
(G is air-conditioning flow；Q is design air conditioner load；Δ t is design air-conditioning supply backwater temperature difference)
Learn that flow is inversely proportional with the temperature difference, institute's water requirement is original 1/2 when the temperature difference doubles for same load；
When two water pump trandfer fluids and identical revolving speed, pump head H, flow G, power N relationship are as follows:
(in formula: H and H ' respectively indicates the chilled water temperature difference and changes the front and back pump head；G and G ' is before the chilled water temperature difference changes
The pump capacity afterwards；N and N ' is that the chilled water temperature difference changes pump power described in front and back)
WhenWhen, available Δ N=N '-N=(1-0.315) N=0.685；Therefore air conditioning water is disappeared in the duct
The power saving rate of wasted work rate is up to 68% or so, and system pipeline specification accordingly reduces, water pump capacity and initial cost will have significantly
Reduce space.
Further, the heat exchanger apparatus uses fenestration fin, and coil pipe arrangement is adverse current in the heat exchanger apparatus
Form, the length ratio of two groups of coil pipes can adjust each according to different indoor environment temperatures, psychrometric condition in the heat exchanger apparatus
From length be finally reached the purpose of dehumidifying and cooling.
Further, coil pipe is horizontal or/and longitudinal arrangement in the heat exchanger apparatus.
Further, heat exchanger apparatus is stated suitable for horizontal, vertical, cassette unit form.
Energy utilization contained in empty water lift is arrived the invention has the benefit that utilizing air-conditioner water system energy ladder
It maximizes, to improve efficiency of energy utilization.Heat exchanger may be implemented under the premise of guaranteeing former conventional blower coil pipe refrigerating capacity
8 DEG C -16 DEG C of supply backwater temperature difference, to reduce quantity of circulating water, the selection specification for reducing air-conditioning system for return pipe reduces initial cost
And the influence to installation space, water reduce the reduction for reducing to the flow of water pump, power have reached energy consumption simultaneously.
Detailed description of the invention
Below according to attached drawing, invention is further described in detail.
Fig. 1 is existing conventional blower coil pipe schematic side view；
Fig. 2 is the surface air cooler structure connection diagram of existing conventional blower coil pipe unit；
Fig. 3 is a kind of side view of big temperature-difference fan coil of the present invention, and internal surface air cooler is vertically arranged；
Fig. 4 is a kind of side view of big temperature-difference fan coil of the present invention, the internal tilting setting of surface air cooler；
Fig. 5 is a kind of big temperature-difference fan coil heat exchanger apparatus structural schematic diagram of the present invention；
Fig. 6 is a kind of big temperature-difference fan coil heat exchanger apparatus structural schematic diagram of the present invention.
In figure: 1, blower；2, heat exchanger apparatus；3, first group of surface air cooler water inlet；4, second group of surface air cooler water outlet；5,
Water-collecting tray；6, discharge outlet；7, air outlet；8, body fuselage；9, fin；10, first group of surface air cooler water outlet；11, second group of table
Cooler water inlet.
Specific embodiment
As seen in figures 3-6, a kind of big temperature-difference fan coil described in the embodiment of the present invention, including body fuselage 8, the machine
Body case 8 is equipped with feed water inlet and water return outlet, and the side of the body fuselage 8 is equipped with blower 1, and opposite with the blower 1 one
Side is equipped with air outlet 7, and 8 bottom of body fuselage is equipped with water-collecting tray 5, and the water-collecting tray 5 is equipped with discharge outlet 6, the body
Heat exchanger apparatus 2 is equipped with inside shell 8, the heat exchanger apparatus 2 includes first group of surface air cooler and second made of tandem compound
Group surface air cooler, first group of surface air cooler are equipped with first group of surface air cooler water inlet 3 and first group of surface air cooler water outlet 10, second group of table
Cooler be equipped with second group of surface air cooler water inlet 11 and second group of surface air cooler water outlet 4, first group of surface air cooler water inlet 3 with
The feed water inlet is connected, and second group of surface air cooler water outlet 4 is connected with the water return outlet, and hot and cold water is through described first group
Second group of surface air cooler is flowed into again after surface air cooler heat exchange.
In one embodiment, the heat exchanger apparatus 2 uses fenestration fin 9, coil pipe in the heat exchanger apparatus 2
Arrangement is countercurrent flow.
In one embodiment, coil pipe is horizontal or/and longitudinal arrangement in the heat exchanger apparatus 2.
In one embodiment, the heat exchanger apparatus 2 is suitable for horizontal, vertical, cassette unit form.
When specifically used, a kind of big temperature difference fan unit according to the present invention mainly by blower 1, heat exchanger apparatus 2,
Water-collecting tray 5, body fuselage 8 are constituted, and fin 9 is had on heat exchanger apparatus 2.Air conditioning water passes through first group of surface air cooler water inlet
3 enter in first group of surface air cooler, and water flow is entered after first group of surface air cooler coil heat exchange by first group of surface air cooler water outlet 10
Second group of surface air cooler water inlet 11 is again through second group of surface air cooler coil heat exchange.Go out after chilled water heat exchange heating through second group of surface air cooler
The mouth of a river 4 is accessed in air-conditioning system chilled water water return pipeline.Room air through with after finned coil pipe cool-down dehumidification by air outlet 7
It is re-fed into interior.The condensed water that generation is condensed in processing air event is discharged from the discharge outlet 6 of water-collecting tray 5, into air-conditioning system
Condensate system in system, Fig. 5 are that 2 coil pipe of heat exchanger apparatus is laterally arranged, and Fig. 6 is 2 coil pipe longitudinal arrangement of heat exchanger apparatus.
In conclusion heat exchanger is guaranteeing former conventional blower coil pipe refrigerating capacity by means of above-mentioned technical proposal of the invention
Under the premise of may be implemented 8 DEG C -16 DEG C of supply backwater temperature difference, to reduce quantity of circulating water, reduce air-conditioning system for the choosing of return pipe
Initial cost is reduced with specification and to the influence of installation space, reducing for water is reduced and had reached to the flow of water pump, power simultaneously
The reduction of energy consumption.
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all that there is skill identical or similar to the present application
Art scheme, is within the scope of the present invention.
Claims (4)
1. a kind of big temperature-difference fan coil, including body fuselage (8), it is characterised in that: the body fuselage (8), which is equipped with, to be supplied water
The side of mouth and water return outlet, the body fuselage (8) is equipped with blower (1), and opposite side is equipped with air outlet with the blower (1)
(7), body fuselage (8) bottom is equipped with water-collecting tray (5), and the water-collecting tray (5) is equipped with discharge outlet (6), outside the body
Heat exchanger apparatus (2) are equipped with inside shell (8), the heat exchanger apparatus (2) include first group of surface air cooler made of tandem compound and
Second group of surface air cooler, first group of surface air cooler are equipped with first group of surface air cooler water inlet (3) and first group of surface air cooler water outlet (10),
Second group of surface air cooler is equipped with second group of surface air cooler water inlet (11) and second group of surface air cooler water outlet (4), first group of table
Cooler water inlet (3) is connected with the feed water inlet, and second group of surface air cooler water outlet (4) is connected with the water return outlet,
Hot and cold water flows into second group of surface air cooler after first group of surface air cooler heat exchange again.
2. a kind of big temperature-difference fan coil according to claim 1, it is characterised in that: the heat exchanger apparatus (2) uses
Fenestration fin (9), coil pipe arrangement is countercurrent flow in the heat exchanger apparatus (2).
3. a kind of big temperature-difference fan coil according to claim 1 or 2, it is characterised in that: in the heat exchanger apparatus (2)
Coil pipe is horizontal or/and longitudinal arrangement.
4. a kind of big temperature-difference fan coil according to claim 1-3, it is characterised in that: the heat exchanger apparatus
(2) it is suitable for horizontal, vertical, cassette unit form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910360895.2A CN110043966A (en) | 2019-04-30 | 2019-04-30 | A kind of big temperature-difference fan coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910360895.2A CN110043966A (en) | 2019-04-30 | 2019-04-30 | A kind of big temperature-difference fan coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110043966A true CN110043966A (en) | 2019-07-23 |
Family
ID=67280447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910360895.2A Pending CN110043966A (en) | 2019-04-30 | 2019-04-30 | A kind of big temperature-difference fan coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110043966A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595013A (en) * | 2019-10-23 | 2019-12-20 | 李立华 | Air conditioner refrigeration method and system for data center and data center |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2304850Y (en) * | 1997-05-09 | 1999-01-20 | 徐威 | Coiled pipelines of air blower with small water volume and large temperature difference |
| KR20100102506A (en) * | 2009-03-11 | 2010-09-24 | 주식회사 삼명공조 | Heat exchanging unit and temperature control apparatus |
| KR20130013576A (en) * | 2011-07-28 | 2013-02-06 | 린나이코리아 주식회사 | Heat-recovery type ventilation system using heat-pump air conditioner |
| CN204880623U (en) * | 2015-06-19 | 2015-12-16 | 瑞繁（北京）人工环境科技有限公司 | High and large space air conditioning circulation unit |
| CN210320333U (en) * | 2019-04-30 | 2020-04-14 | 中建环能建筑工程有限公司 | Large temperature difference fan coil |
-
2019
- 2019-04-30 CN CN201910360895.2A patent/CN110043966A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2304850Y (en) * | 1997-05-09 | 1999-01-20 | 徐威 | Coiled pipelines of air blower with small water volume and large temperature difference |
| KR20100102506A (en) * | 2009-03-11 | 2010-09-24 | 주식회사 삼명공조 | Heat exchanging unit and temperature control apparatus |
| KR20130013576A (en) * | 2011-07-28 | 2013-02-06 | 린나이코리아 주식회사 | Heat-recovery type ventilation system using heat-pump air conditioner |
| CN204880623U (en) * | 2015-06-19 | 2015-12-16 | 瑞繁（北京）人工环境科技有限公司 | High and large space air conditioning circulation unit |
| CN210320333U (en) * | 2019-04-30 | 2020-04-14 | 中建环能建筑工程有限公司 | Large temperature difference fan coil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595013A (en) * | 2019-10-23 | 2019-12-20 | 李立华 | Air conditioner refrigeration method and system for data center and data center |
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