CN204285668U - A kind of bilateral large temperature difference air-conditioning system - Google Patents
A kind of bilateral large temperature difference air-conditioning system Download PDFInfo
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- CN204285668U CN204285668U CN201420693977.1U CN201420693977U CN204285668U CN 204285668 U CN204285668 U CN 204285668U CN 201420693977 U CN201420693977 U CN 201420693977U CN 204285668 U CN204285668 U CN 204285668U
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- temperature difference
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Abstract
The utility model discloses a kind of bilateral large temperature difference air-conditioning system, comprise freezing side and cold side, described freezing side comprise connect successively air conditioning terminal, cold water is for water return pipeline, chilled water pump and evaporimeter, described cold side comprises the cooling tower, cooling water pipe, cooling water pump and the condenser that connect successively, and the temperature difference of described freezing side and cold side is 8 DEG C.The utility model by arranging freezing side and cold side, and increases the temperature difference between freezing side and cold side, reduces the power of water pump, has saved energy, save the investment of equipment cost simultaneously.
Description
Technical field
The utility model relates to technical field of central air, more particularly, and particularly a kind of bilateral large temperature difference air-conditioning system.
Background technology
The energy consumption of air-conditioning accounts for about 40% in the total energy consumption of China, and water pump accounts for 30 ~ 40% in central air conditioner system total energy consumption.The central air-conditioning more than 90% used in the existing public building of China adopts the central air conditioner system of the common temperature difference, the chilled water supply backwater temperature difference of conventional central air-conditioning system is 5 DEG C and (wherein supplies water 7 DEG C, 12 DEG C, backwater), cooling water supply backwater temperature difference 5 DEG C (wherein supplies water 32 DEG C, 37 DEG C, backwater), there is the employing of about 10% one-sided (chilled water side) large temperature difference air-conditioning system.Therefore, what be necessary to design a kind of new structure can realize energy-conservation bilateral large temperature difference air-conditioning system.
Utility model content
The purpose of this utility model is to provide a kind of energy-conservation, bilateral large temperature difference air-conditioning system that cost of investment is little.
In order to achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of bilateral large temperature difference air-conditioning system, comprise freezing side and cold side, described freezing side comprise connect successively air conditioning terminal, cold water is for water return pipeline, chilled water pump and evaporimeter, described cold side comprises the cooling tower, cooling water pipe, cooling water pump and the condenser that connect successively, and the temperature difference of described freezing side and cold side is 8 DEG C.
Preferably, also comprise handpiece Water Chilling Units, the both sides of handpiece Water Chilling Units are located at respectively by described evaporimeter and condenser.
Preferably, described handpiece Water Chilling Units, chilled water pump and cooling water pump are all installed on bottom surface by beam, and described cooling tower is installed on roof.
Compared with prior art, the utility model has the advantage of: the utility model by arranging freezing side and cold side, and increases the temperature difference between freezing side and cold side, reducing the power of water pump, having saved energy, saving the investment of equipment cost simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of bilateral large temperature difference air-conditioning system described in the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Consult shown in Fig. 1, the utility model provides a kind of bilateral large temperature difference air-conditioning system, comprise freezing side and cold side, wherein, described freezing side comprise connect successively air conditioning terminal 2, cold water is for water return pipeline 3, chilled water pump 4 and evaporimeter 5, described cold side comprises the cooling tower 6, cooling water pipe 7, cooling water pump 8 and the condenser 9 that connect successively, and the temperature difference of described freezing side and cold side is 8 DEG C.
Concrete, the utility model also comprises handpiece Water Chilling Units 1, and the both sides of handpiece Water Chilling Units 1 are located at respectively by described evaporimeter 5 and condenser 9.
On mounting structure, handpiece Water Chilling Units 1 described in the utility model, chilled water pump 4 and cooling water pump 8 are all installed on bottom surface (being generally the surface of floor) by beam, and described cooling tower 6 is installed on (being generally the top of floor) on roof.
Below by calculating, advantage of the present utility model is described: the flow of chilled water pump 4 and cooling water water pump 7 is all directly proportional with supply backwater temperature difference, and calculating formula is as follows:
Q＝C.M.ΔT；
In formula: Q: refrigeration duty (KW), C: specific heat of water, generally gets 1.01KJ/ (Kg. DEG C), M: the flow (m of water
3/ h), Δ T: supply backwater temperature difference (DEG C).
Namely when Q is constant, the conventional central air-conditioning temperature difference gets 5 DEG C, and when the temperature difference of employing 8 DEG C, the flow of cold water (cooling water) is original 0.625 times.
Following is a list the formula between the electrical power of water pump and flow, lift simultaneously:
N＝M.H/η
In formula: N: water pump electrical power (KW), M: the flow (m of water
3/ h), H: pump head (mH
2o), η: pump efficiency (%).
Obviously under pump head H and the constant prerequisite of efficiency eta, water pump electrical power N and the whole direct ratio of flow M; Namely after adopting the large temperature difference, the electrical power of freezing (cooling) water pump reduces about 37.5% than the water pump electrical power of traditional temperature difference air conditioner system.
Simultaneously because large temperature difference air conditioner system air conditioner discharge reduces, the temperature difference strengthens, and therefore the water pipe of whole air-conditioning system can correspondingly reduce, and at least saves 37.5%.The valve of water pipe system is corresponding in addition reduces, and also saves initial cost.
Because large temperature difference air conditioner system air conditioner discharge of the present utility model reduces, the temperature difference strengthens, and the air quantity of the air conditioning terminal of user side reduces, and coil area reduces, and therefore air conditioning terminal reality also saves cost.
In sum, bilateral large temperature difference air-conditioning system of the present utility model is except refrigeration host computer is except slightly increase about 10% ~ 20% is invested, and whole air-conditioning system is by reduction cost about about 20 ~ 30%, and operating cost at ordinary times about saves about 15% in addition; And for the central air conditioner system run throughout the year, its energy-saving effect is apparent.
Although describe embodiment of the present utility model by reference to the accompanying drawings; but patent owner can make various distortion or amendment within the scope of the appended claims; as long as be no more than the protection domain described by claim of the present utility model, all should within protection domain of the present utility model.
Claims (3)
1. a bilateral large temperature difference air-conditioning system, it is characterized in that: comprise freezing side and cold side, described freezing side comprises the air conditioning terminal (2), cold water confession water return pipeline (3), chilled water pump (4) and the evaporimeter (5) that connect successively, described cold side comprises the cooling tower (6), cooling water pipe (7), cooling water pump (8) and the condenser (9) that connect successively, and the temperature difference of described freezing side and cold side is 8 DEG C.
2. bilateral large temperature difference air-conditioning system according to claim 1, it is characterized in that: also comprise handpiece Water Chilling Units (1), the both sides of handpiece Water Chilling Units (1) are located at respectively by described evaporimeter (5) and condenser (9).
3. bilateral large temperature difference air-conditioning system according to claim 2, it is characterized in that: described handpiece Water Chilling Units (1), chilled water pump (4) and cooling water pump (8) are all installed on bottom surface by beam, and described cooling tower (6) is installed on roof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693977.1U CN204285668U (en) | 2014-11-17 | 2014-11-17 | A kind of bilateral large temperature difference air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693977.1U CN204285668U (en) | 2014-11-17 | 2014-11-17 | A kind of bilateral large temperature difference air-conditioning system |
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| CN204285668U true CN204285668U (en) | 2015-04-22 |
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| CN201420693977.1U Active CN204285668U (en) | 2014-11-17 | 2014-11-17 | A kind of bilateral large temperature difference air-conditioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099539A (en) * | 2017-12-29 | 2018-12-28 | 上海瀚艺冷冻机械有限公司 | Screw Central air-conditioning unit and its energy level adjusting method |
| CN114198824A (en) * | 2020-09-18 | 2022-03-18 | 广州合一空调设备有限公司 | Special control system for all-in-one machine |
-
2014
- 2014-11-17 CN CN201420693977.1U patent/CN204285668U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099539A (en) * | 2017-12-29 | 2018-12-28 | 上海瀚艺冷冻机械有限公司 | Screw Central air-conditioning unit and its energy level adjusting method |
| CN114198824A (en) * | 2020-09-18 | 2022-03-18 | 广州合一空调设备有限公司 | Special control system for all-in-one machine |
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