CN101769575B - Evaporating semi-centralized air-conditioning system combined with usual cold water machine set as cold source - Google Patents
Evaporating semi-centralized air-conditioning system combined with usual cold water machine set as cold source Download PDFInfo
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- CN101769575B CN101769575B CN2010100135566A CN201010013556A CN101769575B CN 101769575 B CN101769575 B CN 101769575B CN 2010100135566 A CN2010100135566 A CN 2010100135566A CN 201010013556 A CN201010013556 A CN 201010013556A CN 101769575 B CN101769575 B CN 101769575B
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Abstract
The present invention discloses an evaporating semi-centralized air-conditioning system combined with a usual cold water machine set as a cold source, which comprises an evaporating cold water machine set, an evaporating cooling new wind machine set, a mechanical refrigeration cold water machine set and a dry work-condition fan coil which are connected with each other through tube networks. In the evaporating semi-centralized air-conditioning system, the using range of the dry work-condition fan coil and a new wind system is enlarged to a middle humidity area, which solves a cold source problem of the dry work-condition fan coil in the middle humidity area, and has an obvious energy saving advantage.
Description
Technical field
The invention belongs to the air conditioner refrigerating technical field, relate to a kind of half central air-conditioning system, be specifically related to a kind of vaporation-type handpiece Water Chilling Units that adopts and combine with conventional handpiece Water Chilling Units as the dry cooling condition fan-coil unit with fresh air air-conditioning system of low-temperature receiver.
Background technology
In recent years, dry area has obtained extensive use to evaporation cooling technique in the northwest with its energy-saving and environmental protection, economic dispatch advantage.The semi-central system of the new wind of dry cooling condition fan coil+evaporative cooling particularly; Significantly reduced the airduct size of brand-new wind evaporative cooling system; Enlarge transpiration-cooled application scenario, also saved the traditional mechanical refrigeration system simultaneously, practiced thrift investment cost and operating cost.
Along with the appearance of half centralized evaporative cooling system, indirect evaporation cooling water chiller has obtained in dry areas such as Xinjiang using widely.In these areas, the wet-bulb temperature of outdoor air and dew-point temperature are all very low, and 15～20 ℃ the high temperature cold water that indirect evaporation cooling water chiller provides can satisfy the water inlet requirement of dry cooling condition fan coil fully.And for middle humidity area, the wet-bulb temperature of outdoor air is higher than 23 ℃ and less than 28 ℃, generally than higher.Indirect evaporation cooling water chiller is made the high temperature cold water of coming and generally is higher than 3～5 ℃ of dew-point temperatures; And be lower than the wet-bulb temperature of outdoor air, the high temperature cold water that therefore provides by indirect evaporation since temperature is too high can not satisfy in the water inlet requirement of fan coil in humidity area.How middle humidity area utilizes the natural cold source of outdoor air that cold is provided to greatest extent, and the energy-saving potential of enhanced system is an important field of research.
Summary of the invention
The purpose of this invention is to provide a kind of adopt the vaporation-type handpiece Water Chilling Units combine with conventional handpiece Water Chilling Units as low-temperature receiver, because half central air-conditioning system that the new blower fan group of operating mode fan coil+evaporative cooling is formed; Utilize evaporation cooling technique that free cold is provided; Solved the low-temperature receiver problem of middle humidity area dry cooling condition fan-coil unit with fresh air unit, greatly energy efficient.
The technical scheme that the present invention adopted is; Vaporation-type combines half central air-conditioning system as low-temperature receiver with conventional handpiece Water Chilling Units; The new blower fan group of vaporation-type handpiece Water Chilling Units, evaporative cooling, the mechanical refrigeration handpiece Water Chilling Units that connects through pipe network between comprising and be arranged at the dry cooling condition fan coil in the air-conditioned room
The vaporation-type handpiece Water Chilling Units is used to produce temperature and is higher than the high temperature cold water that dew-point temperature is lower than wet-bulb temperature;
The new blower fan group of evaporative cooling is used for the state that a new wind is handled needs, bears new wind load and indoor latent heat load;
The mechanical refrigeration handpiece Water Chilling Units is used for producing summer low-temperature cold water;
The dry cooling condition fan coil is used to bear indoor sensible heat load.
Characteristics of the present invention also are,
The vaporation-type handpiece Water Chilling Units comprises surface cooler a, surface cooler b, direct evaporative cooler a and exhaust blower successively along the air intake direction;
The new blower fan group of evaporative cooling comprises filter, pyrometric scale cooler, cryometer cooler, direct evaporative cooler b and pressure fan successively along air-flow direction;
The mechanical refrigeration handpiece Water Chilling Units comprises evaporimeter, choke valve, condenser and the compressor that connects and composes the loop successively, also connects through pipeline between condenser and the evaporimeter.
Direct evaporative cooler a is connected with surface cooler a through pipeline; The pipeline that direct evaporative cooler a also has pipeline and evaporimeter to stretch out converges the connection back mutually and is connected with the pipeline that gets into the dry cooling condition fan coil; The backwater of dry cooling condition fan coil is connected with the pyrometric scale cooler with surface cooler b respectively through pipeline; The pipeline that the backwater of dry cooling condition fan coil also has pipeline and evaporimeter to stretch out converges the connection back mutually and is connected with the water return pipeline of cryometer cooler, gets into the water return pipeline of evaporimeter through pipeline; The cryometer cooler is connected with the outlet pipe of evaporimeter through pipeline; The backwater of pyrometric scale cooler, surface cooler a and surface cooler b converges in the shower that is communicated with back entering direct evaporative cooler a through pipeline mutually.
Air-conditioning system of the present invention; The mode that adopts evaporative cooling and mechanical refrigeration to combine is handled empty G&W respectively, is met water inlet and new wind state that dry cooling condition fan-coil unit with fresh air unit needs; Adopt the vaporation-type handpiece Water Chilling Units to combine with mechanical refrigeration as the low-temperature receiver of dry cooling condition fan coil; Low-temperature receiver problem when having solved the dry cooling condition fan coil operation of middle humidity area has been practiced thrift energy consumption greatly, has enlarged the range of application of evaporative cooling half central air-conditioning system.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of air-conditioning system of the present invention.
Among the figure, A. vaporation-type handpiece Water Chilling Units, 1. surface cooler a, 2. surface cooler b, 3. direct evaporative cooler a, 4. exhaust blower; 8. the new blower fan group of evaporative cooling, 5. filter, 6. pyrometric scale cooler, 7. cryometer cooler, 8. direct evaporative cooler b, 9. pressure fan; C. mechanical refrigeration handpiece Water Chilling Units, 10. choke valve, 11. condensers, 12. compressors, 13. evaporimeters; D. dry cooling condition fan coil.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is elaborated.
Fig. 1 is the structural representation of a kind of embodiment provided by the invention; Half central air-conditioning system of the present invention connects into vaporation-type handpiece Water Chilling Units A, the new blower fan group of evaporative cooling B, the mechanical refrigeration handpiece Water Chilling Units C in loop and is arranged at the dry cooling condition fan coil D in the air-conditioned room through pipeline between comprising.
Vaporation-type handpiece Water Chilling Units A is used to produce temperature and is higher than the high temperature cold water that dew-point temperature is lower than wet-bulb temperature; Vaporation-type handpiece Water Chilling Units A comprises surface cooler a1, surface cooler b2, direct evaporative cooler a3 and exhaust blower 4 successively along the air intake direction.
The new blower fan group of evaporative cooling B is used for the state that a new wind is handled needs, bears new wind load and indoor latent heat load; The new blower fan group of evaporative cooling B comprises filter 5, pyrometric scale cooler 6, cryometer cooler 7, direct evaporative cooler b8 and pressure fan 9 successively along air-flow direction.
Mechanical refrigeration handpiece Water Chilling Units C is used for producing summer 5～9 ℃ low-temperature cold water; Mechanical refrigeration handpiece Water Chilling Units C comprises evaporimeter 13, choke valve 10, condenser 11 and the compressor 12 that connects and composes the loop successively, also connects through pipeline between condenser 11 and the evaporimeter 13.
Dry cooling condition fan coil D is used to bear indoor sensible heat load.
Air-conditioning system of the present invention, direct evaporative cooler a3 is connected with surface cooler a1 through pipeline, and the pipeline that direct evaporative cooler a3 also has pipeline and evaporimeter 13 to stretch out converges the connection back mutually and is connected with the pipeline that gets into dry cooling condition fan coil D.The backwater of dry cooling condition fan coil D is connected with pyrometric scale cooler 6 with surface cooler b2 respectively through pipeline; The pipeline that the backwater of dry cooling condition fan coil D also has pipeline and evaporimeter 13 to stretch out converges the connection back mutually and is connected with the water return pipeline of cryometer cooler 7, gets into the water return pipeline of evaporimeter 13 through pipeline.Cryometer cooler 7 is connected through the outlet pipe of pipeline with evaporimeter 13.The backwater of pyrometric scale cooler 6, surface cooler a1 and surface cooler b2 converges in the shower that is communicated with back entering direct evaporative cooler a3 through pipeline mutually.Be provided with water circulating pump, control valve and constant pressure tank etc. in this system, to guarantee that water system normally moves.
High temperature cold water that vaporation-type handpiece Water Chilling Units A produces out a part is supplied with its surface cooler a1 and is used, and the low-temperature cold water that another part and mechanical refrigeration handpiece Water Chilling Units C produce out is through proportioning, sends into coil pipe after being mixed into the inflow temperature of dry cooling condition fan coil D requirement.
Part in the dry cooling condition fan coil D backwater is got back to mechanical refrigeration handpiece Water Chilling Units C, and a part is supplied with the pyrometric scale cooler 6 of the new blower fan group of evaporative cooling B, and the surface cooler b2 that remainder offers vaporation-type handpiece Water Chilling Units A uses.
Spray at the direct evaporative cooler a3 of vaporation-type handpiece Water Chilling Units A filling surface after the backwater mixed together of the pyrometric scale cooler 6 of the new blower fan group of evaporative cooling B, the surface cooler a1 of vaporation-type handpiece Water Chilling Units A and surface cooler b2.
The low-temperature cold water part that mechanical refrigeration handpiece Water Chilling Units C produces is used for mixing with high temperature cold water; A part offers the cryometer cooler 7 of the new blower fan group of evaporative cooling B, and that part of backwater that remainder is used for getting back to fan coil mechanical refrigeration handpiece Water Chilling Units C is cooled to return in the evaporimeter 13 among the mechanical refrigeration handpiece Water Chilling Units C behind the handpiece Water Chilling Units return water temperature.
Among the new blower fan group of evaporative cooling in the air-conditioning system of the present invention B, what feed in the pyrometric scale cooler 6 is to produce through evaporative cooling, the high temperature cold water after coil pipe heats up, and what cryometer cooler 7 fed is the low-temperature cold water that mechanical refrigeration is produced.The processing procedure of new wind combines through evaporative cooling and mechanical refrigeration and realizes.
The processing mode that new wind and dry cooling condition fan coil water system have all adopted evaporative cooling and mechanical refrigeration to combine among the present invention is compared with traditional semi-central system, has practiced thrift the installed capacity and the energy consumption of mechanical refrigeration handpiece Water Chilling Units greatly.Also for middle humidity area dry cooling condition primary air fan-coil system provides low-temperature receiver, enlarged transpiration-cooled range of application simultaneously.
Air-conditioning system of the present invention is a multi-air condition system, and its course of work is:
The operation logic of water system: vaporation-type handpiece Water Chilling Units A, mechanical refrigeration handpiece Water Chilling Units C, evaporative cooling new blower fan group B and dry cooling condition fan coil D in the open system.The high temperature cold water Q7 that vaporation-type handpiece Water Chilling Units A produces out is two parts in node a punishment; The surface cooler a1 that part Q6 supplies with among the vaporation-type handpiece Water Chilling Units A uses; Q2 in 7 ℃ the low-temperature cold water that remainder Q1 and mechanical refrigeration handpiece Water Chilling Units C produce out supplies with dry cooling condition fan coil D with the flow of Q3 and uses after the mixing of node b place reaches dry cooling condition fan coil D water inlet requirement.Backwater Q3 after dry cooling condition fan coil D heats up is three parts in node c punishment, and wherein the water of Q4 feeds the pyrometric scale cooler 6 among the new blower fan group of the evaporative cooling B; The flow of Q2 need be got back in the evaporimeter of mechanical refrigeration handpiece Water Chilling Units C, to keep constant flow; The flow of Q5 supplies the surface cooler b2 among the vaporation-type handpiece Water Chilling Units A to use.The temperature of the backwater Q2 that comes out from dry cooling condition fan coil D is higher than the return water temperature of mechanical refrigeration handpiece Water Chilling Units C far away; The low-temperature cold water of 7 ℃ the Q8 that therefore must produce out with the mechanical refrigeration handpiece Water Chilling Units could be got back in the unit evaporimeter with the flow of Q9 after being mixed into 12 ℃ of the return water temperatures of mechanical refrigeration handpiece Water Chilling Units C at node f place.The low-temperature cold water that mechanical refrigeration handpiece Water Chilling Units C produces is three parts in node d punishment, and the high temperature cold water of the Q1 that Q2 is used for making with vaporation-type handpiece Water Chilling Units A is mixed; Q8 is used for mixing with the Q2 of dry-type fan coil D backwater; Q10 is used for to the cryometer cooler 7 of the new blower fan group of evaporative cooling B low-temperature cold water being provided.12 ℃ the backwater of the Q10 of the new blower fan group of Q9 that Q8 and Q2 are mixed 12 ℃ and evaporative cooling B cryometer cooler 7 is got back among the mechanical refrigeration handpiece Water Chilling Units C after node e place is mixed into 12 ℃ the water of Q11.At node g place; From the backwater Q4 of pyrometric scale cooler 6 among the new blower fan group of the evaporative cooling B, the backwater Q6 of backwater Q5 and the surface cooler a1 among the vaporation-type handpiece Water Chilling Units A of surface cooler b2 among the vaporation-type handpiece Water Chilling Units A after node g place is mixed; With the direct evaporative cooler a3 filling surface spray of flow in vaporation-type handpiece Water Chilling Units A of Q7, produce the high temperature cold water that obtains Q7 at node a place through the spray back.The high temperature low-temperature receiver that this method of operation has solved middle humidity area vaporation-type handpiece Water Chilling Units A to be provided can not satisfy the situation of dry cooling condition fan coil operation.
New blower fan group wind system operation logic: after opening the new blower fan group of evaporative cooling B; Outdoor air at first passes through filter 5 along the air current flow direction; Wet cooling such as new wind quilt under the effect of pyrometric scale cooler 6, and then through the effect of cryometer cooler 7, dehumidifying continues to be cooled.
New wind has been born new wind load and indoor whole latent heat load through the state that the new blower fan group of evaporative cooling B finally is processed to the water capacity that is lower than room air.
Claims (1)
1. vaporation-type combines half central air-conditioning system as low-temperature receiver with conventional handpiece Water Chilling Units; It is characterized in that; The dry cooling condition fan coil (D) that the new blower fan group of vaporation-type handpiece Water Chilling Units (A), evaporative cooling (B), the mechanical refrigeration handpiece Water Chilling Units (C) that connects through pipe network between comprising is interior with being arranged at air-conditioned room
Described vaporation-type handpiece Water Chilling Units (A) is used to produce temperature and is higher than the high temperature cold water that dew-point temperature is lower than wet-bulb temperature;
The new blower fan group of described evaporative cooling (B) is used for the state that a new wind is handled needs, bears new wind load and indoor latent heat load;
Described mechanical refrigeration handpiece Water Chilling Units (C) is used for producing summer low-temperature cold water;
Described dry cooling condition fan coil (D) is used to bear indoor sensible heat load;
Described vaporation-type handpiece Water Chilling Units (A) comprises surface cooler a (1), surface cooler b (2), direct evaporative cooler a (3) and exhaust blower (4) successively along the air intake direction;
The new blower fan group of described evaporative cooling (B) comprises filter (5), pyrometric scale cooler (6), cryometer cooler (7), direct evaporative cooler b (8) and pressure fan (9) successively along air-flow direction;
Described mechanical refrigeration handpiece Water Chilling Units (C) comprises evaporimeter (13), choke valve (10), condenser (11) and the compressor (12) that connects and composes the loop successively, also connects through pipeline between condenser (11) and the evaporimeter (13);
Described direct evaporative cooler a (3) is connected with surface cooler a (1) through pipeline; Direct evaporative cooler a (3) also has pipeline and pipeline that evaporimeter (13) stretches out to converge mutually to be communicated with the back and is connected with the pipeline of entering dry cooling condition fan coil (D); The backwater of dry cooling condition fan coil (D) is connected with pyrometric scale cooler (6) with surface cooler b (2) respectively through pipeline; The pipeline that the backwater of dry cooling condition fan coil (D) also has pipeline and evaporimeter (13) to stretch out converges the connection back mutually and is connected with the water return pipeline of cryometer cooler (7), gets into the water return pipeline of evaporimeter (13) through pipeline; Cryometer cooler (7) is connected through the outlet pipe of pipeline with evaporimeter (13); The backwater of pyrometric scale cooler (6), surface cooler a (1) and surface cooler b (2) converges in the shower that is communicated with back entering direct evaporative cooler a (3) through pipeline mutually.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010100135566A CN101769575B (en) | 2010-01-07 | 2010-01-07 | Evaporating semi-centralized air-conditioning system combined with usual cold water machine set as cold source |
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| CN2010100135566A CN101769575B (en) | 2010-01-07 | 2010-01-07 | Evaporating semi-centralized air-conditioning system combined with usual cold water machine set as cold source |
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| CN101769575A CN101769575A (en) | 2010-07-07 |
| CN101769575B true CN101769575B (en) | 2012-07-18 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101936584B (en) * | 2010-09-20 | 2013-04-03 | 西安工程大学 | Evaporative cooling air-conditioning system combining nocturnal radiation cooling technology and cold-accumulating technology |
| CN102022788B (en) * | 2010-12-05 | 2015-08-26 | 新疆绿色使者空气环境技术有限公司 | Indirect evaporation cooling water chiller and mechanical refrigeration handpiece Water Chilling Units air conditioning air-conditioning system |
| CN103134110A (en) * | 2011-11-24 | 2013-06-05 | 王春刚 | Air conditioning system capable of independently controlling temperature and humidity |
| CN104204684B (en) * | 2012-03-21 | 2017-08-11 | 开利公司 | The coordination air side control of HVAC system |
| CN102721142B (en) * | 2012-06-27 | 2014-11-05 | 惠州市合之宝环境设备有限公司 | Combination air conditioner controlling method and system |
| CN106765771A (en) * | 2016-12-30 | 2017-05-31 | 扬州华奕通讯设备有限公司 | A kind of energy-efficient evaporative cooling system and its operating method applied in data center's mechanical refrigeration |
| CN113339901B (en) * | 2021-05-14 | 2022-05-31 | 苏州科技大学 | Control system and method for adjusting indoor air temperature and humidity in humid area |
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| CN201680517U (en) * | 2010-01-07 | 2010-12-22 | 西安工程大学 | Semi-centralized evaporation cooling composite air-conditioning system |
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| CN201680517U (en) * | 2010-01-07 | 2010-12-22 | 西安工程大学 | Semi-centralized evaporation cooling composite air-conditioning system |
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