CN212108844U - Air conditioning unit based on rotary wheel type heat recovery, indirect evaporative cooling and mechanical refrigeration - Google Patents

Air conditioning unit based on rotary wheel type heat recovery, indirect evaporative cooling and mechanical refrigeration Download PDF

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Publication number
CN212108844U
CN212108844U CN202020227746.7U CN202020227746U CN212108844U CN 212108844 U CN212108844 U CN 212108844U CN 202020227746 U CN202020227746 U CN 202020227746U CN 212108844 U CN212108844 U CN 212108844U
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China
Prior art keywords
air
unit
mechanical refrigeration
evaporative cooling
indirect evaporative
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Expired - Fee Related
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CN202020227746.7U
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Chinese (zh)
Inventor
黄翔
王颖
寇凡
常健佩
杜妍
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Xian Polytechnic University
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Xian Polytechnic University
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Abstract

The utility model discloses an air conditioning unit based on runner formula heat recovery, indirect evaporative cooling and mechanical refrigeration, including the unit casing, form the last wind channel and the lower wind channel that distribute about being in the unit casing, the both sides wall that the last wind channel corresponds the unit casing is provided with air exit an and air exit b respectively, the both sides wall that the lower wind channel corresponds the unit casing is provided with air intake an and supply-air outlet respectively, runner formula heat recovery device has set gradually according to the flow direction of air inlet in the unit casing, the indirect evaporative cooling unit of riser, mechanical refrigeration unit and rotary dehumidifier, the indirect evaporative cooling unit both sides of riser are provided with overgrate air valve an and overgrate air valve b respectively, the unit casing top that mechanical refrigeration unit corresponds is provided with air intake b. The utility model provides a during exclusive use evaporative cooling system or mechanical refrigeration system, the limited and great problem of energy consumption of cooling range realizes that evaporative cooling and mechanical refrigeration's advantage are complementary, fully improves the energy efficiency ratio of unit.

Description

Air conditioning unit based on rotary wheel type heat recovery, indirect evaporative cooling and mechanical refrigeration
Technical Field
The utility model belongs to the technical field of air conditioning equipment, a air conditioning unit based on runner formula heat recovery, indirect evaporative cooling and mechanical refrigeration is related to.
Background
With the rapid development of economy and continuous progress of science and technology, the living standard of people is also qualitatively improved, air conditioners become necessities for maintaining indoor comfort, meanwhile, the number of air conditioner buildings is greatly increased, energy sources in China face a plurality of challenges, and energy conservation and emission reduction become a basic national policy in China. Under the double pressure of energy conservation and emission reduction and operation cost reduction, the traditional mechanical refrigeration air-conditioning mode faces transformation and upgrading, and the energy-saving research on the air-conditioning industry is urgently needed to be developed; on one hand, the waste heat and the waste heat are fully utilized and excavated, the energy utilization rate is improved, and on the other hand, a new energy-saving air conditioning technology is considered.
The evaporative cooling air conditioning technology has the unique advantages of energy conservation, low carbon, economy and health, but the application of the evaporative cooling technology has regional and seasonal limitations, and the refrigerating capacity and the air supply temperature are greatly influenced by external environmental factors. The mechanical refrigeration technology can prepare cold energy with more stable temperature, but the energy consumption is relatively large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air conditioning unit based on runner formula heat recovery, indirect evaporative cooling and mechanical refrigeration, when having solved exclusive use evaporative cooling system or mechanical refrigeration system, the cooling range is limited and the great problem of energy consumption, realizes that evaporative cooling and mechanical refrigeration's advantage is complementary, fully improves the energy efficiency ratio of unit.
The utility model provides a technical scheme be, based on runner formula heat recovery, indirect evaporative cooling and mechanical refrigeration's air conditioning unit, including the unit casing, form upper air duct and lower wind channel that distributes about being in the unit casing, the both sides wall that upper air duct corresponds the unit casing is provided with air exit a and air exit b respectively, the both sides wall that lower wind channel corresponds the unit casing is provided with air intake a and supply-air outlet respectively, air intake a and supply-air outlet are located same lateral wall with air exit an and air exit b respectively, runner formula heat recovery device has been set gradually according to the flow direction of air inlet in the unit casing, riser indirect evaporative cooling unit, mechanical refrigeration unit and rotary dehumidifier, runner formula heat recovery device, riser indirect evaporative cooling unit, mechanical refrigeration unit and rotary dehumidifier all run through upper air duct and lower wind channel, riser indirect evaporative cooling unit is located one side that upper air duct is close to runner formula heat recovery device and mechanical refrigeration unit and is provided with overgrate air valve an and mechanical refrigeration unit respectively And the secondary air valve b and the top of the unit shell corresponding to the mechanical refrigeration unit are provided with an air inlet b.
The utility model is also characterized in that,
the fresh air side of the rotary wheel type heat recoverer is positioned in the lower air duct, and the exhaust side of the rotary wheel type heat recoverer is positioned in the upper air duct.
The vertical pipe indirect evaporative cooling unit comprises a vertical pipe indirect evaporative cooler arranged corresponding to the air inlet a, a water distribution device, a water baffle and a secondary fan are sequentially arranged above the vertical pipe indirect evaporative cooler from bottom to top, a water storage tank is arranged below the vertical pipe indirect evaporative cooler and is communicated with the water distribution device through a water supply pipe, and a secondary air valve a and a secondary air valve b are arranged on a shell of the vertical pipe indirect evaporative cooling unit corresponding to the space between the water baffle and the secondary fan.
The water supply pipe is provided with a circulating water pump and a regulating valve.
A ball float valve is arranged in the water storage tank.
The mechanical refrigeration unit comprises an evaporator arranged in the lower air duct, the evaporator is sequentially connected with an expansion valve, a condenser and a compressor through pipelines to form a closed circulation loop, the condenser and the compressor are positioned in the upper air duct, and the expansion valve is positioned in the lower air duct.
An air heater is also arranged between the mechanical refrigeration unit and the rotary dehumidifier in the upper air duct.
The dehumidification area of the rotary dehumidifier is positioned in the lower air duct, and the regeneration area of the rotary dehumidifier is positioned in the upper air duct.
The air supply outlet, the air exhaust outlet a and the air exhaust outlet b are respectively provided with an air blower, an air exhaust fan a and an air exhaust fan b.
A coarse filter is also arranged between the air inlet a and the rotary wheel type heat recoverer.
The utility model has the advantages that:
(1) the utility model discloses an air conditioning unit, the operational mode is diversified, combines together evaporative cooling system and mechanical refrigeration system, and according to temperature and humidity requirement switching operational mode in meteorological condition and the building, when having solved exclusive use evaporative cooling system or mechanical refrigeration system, the cooling range is limited and the great problem of energy consumption, realizes that evaporative cooling and mechanical refrigeration's advantage is complementary, fully improves the energy efficiency ratio of unit.
(2) The air conditioning unit of the utility model adopts the vertical tube indirect evaporative cooler, the secondary air and the spray water are directly evaporated and cooled in the wet channel in the vertical tube, the primary air flows through the dry channel outside the tube and is equally wet-cooled in contact with the tube wall, and the air flow channel outside the tube is wide, is not easy to block and is easy to clean; the problem of blockage in the heat exchange pipe can be effectively relieved due to the scouring action of the circulating water from top to bottom; the heat exchanger tube bundle is vertical, so that the floor area of the heat exchange tube in the horizontal direction can be reduced.
(3) The utility model discloses an air conditioning unit adopts runner formula heat recovery device to carry out sensible heat recovery, and the runner is as the heat accumulation core, and the new trend passes through the new trend side semicircle of sensible heat type runner, and the reverse side semicircle of airing exhaust through the runner of airing exhaust simultaneously airs exhaust, airs exhaust and give the heat accumulation core with cold volume release, and the temperature of airing exhaust risees, and core temperature descends, and when hot new trend contacts cold heat accumulation core, owing to there is the difference in temperature, the core will be cold volume release for the new trend, carries out the precooling to the new trend.
(4) The utility model discloses an air conditioning unit has adopted rotary dehumidifier to carry out dehumidification to indoor air supply, and the air flow through indirect evaporative cooling unit is through mechanical refrigerating plant's evaporimeter, and the air that obtains after the cooling dehumidification is further dehumidified in the dehumidification district through rotary dehumidifier, and the dry air after the processing is sent into indoorly by the forced draught blower. The secondary exhaust air flows through a condenser of the mechanical refrigerating device through a secondary air valve b to take away heat of the condenser, and the regenerative air heated by the condenser flows through a regenerative area of the rotary dehumidifier after being further heated by the air heater to take away moisture in the rotary wheel and leaves the rotary wheel under the action of the exhaust fan.
Drawings
Fig. 1 is a schematic structural diagram of the air conditioning unit of the present invention;
fig. 2 is a wind direction diagram of the air conditioning unit of the present invention.
In the figure, 1, an air inlet a, 2, a coarse filter, 3, a runner type heat recoverer, 4, a vertical pipe indirect evaporation cooler, 5, a water storage tank, 6, a circulating water pump, 7, a ball float valve, 8, a water supply pipe, 9, an evaporator, 10, an expansion valve, 11, a runner dehumidifier, 12, a blower, 13, an air supply outlet, 14, an air outlet b, 15, an exhaust fan b, 16, an air heater, 17, a condenser, 18, an air inlet b, 19, a secondary fan, 20, a secondary fan bracket, 21, an exhaust fan a, 22, an air outlet a, 23, a secondary air valve a, 24, a water distribution device, 25, a water baffle, 26, a secondary air valve b, 27, a compressor, 28, a unit shell, 29, an upper air duct, 30, a lower air duct and 31, an adjusting valve are arranged.
Detailed Description
The utility model discloses an air conditioning unit based on runner formula heat recovery, indirect evaporative cooling and mechanical refrigeration, its structure is shown in figure 1, including unit housing 28, form upper air duct 29 and lower air duct 30 that distribute from top to bottom in the unit housing, upper air duct 29 corresponds the both sides wall of unit housing 28 and is provided with air exit a22 and air exit b14 respectively, lower air duct 30 corresponds the both sides wall of unit housing 28 and is provided with air intake a1 and air supply outlet 13 respectively, air intake a1 and air supply outlet 13 are located same lateral wall with air exit a22 and air exit b14 respectively, runner formula heat recoverer 3, riser indirect evaporative cooling unit, mechanical refrigeration unit and runner dehumidifier 11 are arranged according to the flow direction of air inlet in proper order in unit housing 28, runner formula heat recoverer 3, riser indirect evaporative cooling unit, mechanical refrigeration unit and runner dehumidifier 11 all pass through upper air duct 29 and lower air duct 30, the vertical pipe indirect evaporative cooling unit is provided with a secondary air valve a23 and a secondary air valve b26 at one side of the upper air duct 29 close to the rotary wheel type heat recovery device 3 and the mechanical refrigeration unit, and the top of the unit shell 28 corresponding to the mechanical refrigeration unit is provided with an air inlet b 18.
As shown in fig. 2, the fresh air side of the heat recovery unit 3 is located in the lower air duct 30, and the exhaust air side of the heat recovery unit 3 is located in the upper air duct 29.
The riser indirect evaporative cooling unit comprises a riser indirect evaporative cooler 4 arranged corresponding to the air inlet a1, a water distribution device 24, a water baffle 25 and a secondary air fan 19 are sequentially arranged above the riser indirect evaporative cooler 4 from bottom to top, a water storage tank 5 is arranged below the riser indirect evaporative cooler 4, the water storage tank 5 is communicated with the water distribution device 24 through a water supply pipe 8, and a secondary air valve a23 and a secondary air valve b26 are arranged on a corresponding riser indirect evaporative cooling unit shell between the water baffle 25 and the secondary air fan 19.
The water supply pipe 8 is provided with a circulating water pump 6 and an adjusting valve 31.
A ball float valve 7 is arranged in the water storage tank 5.
The mechanical refrigeration unit comprises an evaporator 9 arranged in a lower air duct 30, the evaporator 9 is sequentially connected with an expansion valve 10, a condenser 17 and a compressor 27 through pipelines to form a closed circulation loop, the condenser 17 and the compressor 27 are positioned in an upper air duct 29, and the expansion valve 10 is positioned in the lower air duct 30.
An air heater 16 is also arranged between the mechanical refrigeration unit and the rotary dehumidifier 11 in the upper air duct 29.
The dehumidification area of the rotary dehumidifier 11 is located in the lower air duct 30, and the regeneration area of the rotary dehumidifier 11 is located in the upper air duct 29.
The blower 12, the exhaust fan a21 and the exhaust fan b15 are respectively provided at the blower port 13, the exhaust port a22 and the exhaust port b 14.
A coarse filter 2 is also arranged between the air inlet a1 and the rotary wheel type heat recovery device 3.
The utility model discloses a breakwater 25 is ripple type breakwater.
The utility model discloses air conditioning unit's theory of operation:
(1) indirect evaporative cooling mode:
in this mode, only the vertical pipe indirect evaporative cooling unit is opened, outdoor fresh air enters the unit from the air inlet a1, is filtered by the coarse filter 2 and then reaches the fresh air side of the rotary wheel type heat recovery device 3 for precooling, the precooled fresh air enters the vertical pipe indirect evaporative cooling unit, secondary air and spray water are subjected to direct evaporative cooling in a wet channel in the vertical pipe, primary air flows through a dry channel on the outer side of the pipe and is subjected to equal-humidity cooling by contacting with the pipe wall, and the cooled primary air is dehumidified in a dehumidification region of the rotary dehumidifier 11 and then is sent into a room by the blower 12.
At this time, the secondary air valve a23 and the air inlet b18 are opened, the secondary air enters the exhaust side semicircle of the rotary heat recovery unit 3 through the secondary air valve a23, and the cold energy is released to the heat storage core and then discharged out of the unit through the exhaust fan a 21. Outdoor air enters the unit from an air inlet b18, enters a regeneration area semicircle of the rotary dehumidifier 11 after being heated by the air heater 16, takes away the moisture content of the rotary, and is discharged out of the unit by an exhaust fan b 15.
(2) Indirect evaporative cooling-mechanical refrigeration mode:
in summer hot weather or high-temperature high-humidity working conditions, when the indoor temperature and humidity requirements cannot be met only by opening the vertical pipe indirect evaporative cooling unit, the mechanical refrigeration unit is opened at the moment, primary air cooled by equal humidity in the vertical pipe indirect evaporative cooling unit flows through the evaporator 9 of the mechanical refrigeration device, after cooling and dehumidification, further dehumidification is carried out through the dehumidification area of the rotary dehumidifier 11, and the treated dry air is sent into the room by the blower 12.
At this time, the secondary air valves a23 and b26 are opened, the air inlet b18 is closed, a part of secondary air flows through the condenser 17 of the mechanical refrigeration device through the secondary air valve b26, the heat of the condenser 17 is taken away, the regeneration air heated by the condenser 17 flows through the regeneration area of the rotary dehumidifier 11 after being further heated by the air heater 16, the moisture in the rotary wheel is taken away, and the regeneration air leaves the rotary wheel under the action of the exhaust fan b 15.

Claims (10)

1. The air conditioning unit based on the rotary wheel type heat recovery, the indirect evaporative cooling and the mechanical refrigeration is characterized by comprising a unit shell (28), an upper air duct (29) and a lower air duct (30) which are vertically distributed are formed in the unit shell, an air outlet a (22) and an air outlet b (14) are respectively arranged on the upper air duct (29) corresponding to two side walls of the unit shell (28), an air inlet a (1) and an air supply outlet (13) are respectively arranged on the lower air duct (30) corresponding to two side walls of the unit shell (28), the air inlet a (1) and the air supply outlet (13) are respectively positioned on the same side wall with the air outlet a (22) and the air outlet b (14), a rotary wheel type heat recovery device (3), a vertical pipe indirect evaporative cooling unit, the mechanical refrigeration unit and a rotary wheel dehumidifier (11) are sequentially arranged in the unit shell (28) according to the flowing direction of inlet, the rotary wheel type heat recoverer (3), the vertical pipe indirect evaporation cooling unit, the mechanical refrigeration unit and the rotary dehumidifier (11) penetrate through the upper air duct (29) and the lower air duct (30), the vertical pipe indirect evaporation cooling unit is located on one side, close to the rotary wheel type heat recoverer (3) and the mechanical refrigeration unit, of the upper air duct (29), and is provided with a secondary air valve a (23) and a secondary air valve b (26) respectively, and an air inlet b (18) is formed in the top of a unit shell (28) corresponding to the mechanical refrigeration unit.
2. Air conditioning unit based on heat recovery in rotating wheels, indirect evaporative cooling and mechanical refrigeration, according to claim 1, characterized in that the fresh air side of the heat recovery unit (3) in the lower air duct (30) and the exhaust air side of the heat recovery unit (3) in the upper air duct (29).
3. The air conditioning unit based on rotary wheel type heat recovery, indirect evaporative cooling and mechanical refrigeration as claimed in claim 1 or 2, wherein the vertical pipe indirect evaporative cooling unit comprises a vertical pipe indirect evaporative cooler (4) arranged corresponding to the air inlet a (1) of the air inlet a (1), a water distribution device (24), a water baffle plate (25) and a secondary fan (19) are sequentially arranged above the vertical pipe indirect evaporative cooler (4) from bottom to top, a water storage tank (5) is arranged below the vertical pipe indirect evaporative cooler (4), the water storage tank (5) is communicated with the water distribution device (24) through a water supply pipe (8), and the secondary air valve a (23) and the secondary air valve b (26) are arranged on a corresponding vertical pipe indirect evaporative cooling unit shell between the water baffle plate (25) and the secondary fan (19).
4. Air conditioning unit based on heat recovery in rotating wheel type, indirect evaporative cooling and mechanical refrigeration according to claim 3, characterized in that the water supply pipe (8) is provided with a circulating water pump (6) and a regulating valve (31).
5. Air conditioning assembly according to claim 4, wherein a ball float valve (7) is arranged in the reservoir (5).
6. Air conditioning unit based on runner type heat recovery, indirect evaporative cooling and mechanical refrigeration as claimed in claim 1 or 2, wherein the mechanical refrigeration unit comprises an evaporator (9) arranged in a lower air duct (30), the evaporator (9) is connected with an expansion valve (10), a condenser (17) and a compressor (27) in sequence through pipelines and forms a closed circulation loop, the condenser (17) and the compressor (27) are located in an upper air duct (29), and the expansion valve (10) is located in the lower air duct (30).
7. Air conditioning unit based on runner type heat recovery, indirect evaporative cooling and mechanical refrigeration as claimed in claim 1 or 2, characterized in that an air heater (16) is further arranged in the upper air duct (29) between the mechanical refrigeration unit and the runner dehumidifier (11).
8. Air conditioning unit according to claim 1 or 2, characterized in that the dehumidification section of the rotary dehumidifier (11) is located in the lower air duct (30) and the regeneration section of the rotary dehumidifier (11) is located in the upper air duct (29).
9. Air conditioning unit based on heat recovery in rotating wheel type, indirect evaporative cooling and mechanical refrigeration according to claim 1 or 2, characterized in that the air supply outlet (13), the air exhaust outlet a (22) and the air exhaust outlet b (14) are respectively provided with an air supply blower (12), an air exhaust blower a (21) and an air exhaust blower b (15).
10. Air conditioning unit based on rotary wheel type heat recovery, indirect evaporative cooling and mechanical refrigeration as claimed in claim 1 or 2, characterized in that a coarse filter (2) is further arranged between the air inlet a (1) of the air inlet a (1) and the rotary wheel type heat recoverer (3).
CN202020227746.7U 2020-02-28 2020-02-28 Air conditioning unit based on rotary wheel type heat recovery, indirect evaporative cooling and mechanical refrigeration Expired - Fee Related CN212108844U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020227746.7U CN212108844U (en) 2020-02-28 2020-02-28 Air conditioning unit based on rotary wheel type heat recovery, indirect evaporative cooling and mechanical refrigeration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020227746.7U CN212108844U (en) 2020-02-28 2020-02-28 Air conditioning unit based on rotary wheel type heat recovery, indirect evaporative cooling and mechanical refrigeration

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CN212108844U true CN212108844U (en) 2020-12-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111197832A (en) * 2020-02-28 2020-05-26 西安工程大学 Air conditioning unit combining rotary wheel type heat recovery evaporative cooling and mechanical refrigeration
CN112923461A (en) * 2021-02-26 2021-06-08 青岛海尔空调电子有限公司 Fresh air system and control method, storage medium and control device thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111197832A (en) * 2020-02-28 2020-05-26 西安工程大学 Air conditioning unit combining rotary wheel type heat recovery evaporative cooling and mechanical refrigeration
CN112923461A (en) * 2021-02-26 2021-06-08 青岛海尔空调电子有限公司 Fresh air system and control method, storage medium and control device thereof
CN112923461B (en) * 2021-02-26 2022-11-22 青岛海尔空调电子有限公司 Fresh air system and control method, storage medium and control device thereof

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20201208

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