CN211792611U - Surface cooler precooling type indirect evaporative cooling air-conditioning system - Google Patents
Surface cooler precooling type indirect evaporative cooling air-conditioning system Download PDFInfo
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- CN211792611U CN211792611U CN202020304145.1U CN202020304145U CN211792611U CN 211792611 U CN211792611 U CN 211792611U CN 202020304145 U CN202020304145 U CN 202020304145U CN 211792611 U CN211792611 U CN 211792611U
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Abstract
The utility model discloses a surface cooler precooling type indirect evaporative cooling air conditioning system, which comprises a water chilling unit, wherein the water chilling unit is connected with a plate type heat exchanger through a water pipe and forms a closed circulation channel, and the plate type heat exchanger is also connected with a back plate coil pipe of a data center through a liquid pipe and forms a closed circulation channel; the water chilling unit is also connected with a horizontal tube type air-air heat exchanger through an air pipe, and air in the horizontal tube type air-air heat exchanger is exhausted from an air outlet; the water chilling unit comprises a shell, a direct evaporation cooling unit is arranged in the shell, the two side structures of the direct evaporation cooling unit are symmetrical and the same, an air inlet unit, a coarse filter, a surface air cooler, an indirect evaporation cooling unit, a direct evaporation cooling unit, a centrifugal fan and an air outlet are sequentially arranged according to the air inlet direction, and the air outlet is connected with an air pipe. The utility model discloses indirect evaporative cooling air conditioning system utilizes evaporative cooling and ethylene glycol natural cooling technique, reduces the operation energy consumption, has solved the higher problem of current data center cooling system energy consumption.
Description
Technical Field
The utility model belongs to the technical field of air conditioning equipment, concretely relates to indirect evaporative cooling air conditioning system of surface cooler precooling formula.
Background
With the development of science and technology and economy, the living standard of people's materials is improved, various industrial buildings are greatly built, but the problem of high energy consumption generally exists in air conditioning equipment and systems adopted by buildings built at home at present. Particularly in the field of data centers, with the increase of the number and the scale of the data centers, the energy consumption of the data centers is more and more non-negligible. In the energy consumption structure of the data center, the energy consumption of the air conditioning system accounts for 30% -50% of the total energy consumption of the data center, and the traditional mode of independent refrigeration of the mechanical refrigeration water chilling unit is adopted, so that the electric energy consumption is high, and the operation and maintenance cost is high, so that the air conditioning system is a key link for improving the energy efficiency of the current data center.
The evaporative cooling technology is a green energy-saving technology for absorbing heat and refrigerating by water evaporation, water is used as a refrigerant, a compressor is not needed, heat and moisture exchange between air and water is carried out by direct or indirect contact of air and water, cold air or cold water is prepared, and the environment-friendly sustainable development policy is met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a surface cooler precooling type indirect evaporative cooling air conditioning system has solved the problem that current air conditioning system energy consumption is high, the operation maintenance cost is high for the data center.
The technical scheme adopted by the utility model is that the surface cooler precooling type indirect evaporative cooling air conditioning system comprises a water chilling unit, wherein the water chilling unit is connected with a plate heat exchanger through a water pipe and forms a closed circulation channel, and the plate heat exchanger is also connected with a back plate coil pipe of a data center through a liquid pipe and forms a closed circulation channel; the water chilling unit is also connected with a horizontal pipe type air-air heat exchanger positioned at the top of the data center through an air pipe, and air of the horizontal pipe type air-air heat exchanger is discharged from an air outlet;
the water chilling unit comprises a shell, wherein a direct evaporation cooling unit is arranged in the shell, the two sides of the direct evaporation cooling unit are symmetrical and the same in structure, an air inlet unit, a coarse filter, a surface air cooler, an indirect evaporation cooling unit, a direct evaporation cooling unit, a centrifugal fan and an air outlet are sequentially arranged according to the air inlet direction, and the air outlet is connected with an air pipe.
The utility model is also characterized in that,
an exhaust fan is arranged at the air outlet.
The air inlet unit is sequentially provided with an air inlet b, a baffle and an air inlet a from top to bottom.
The indirect evaporative cooling unit comprises a plate-tube indirect evaporative cooler a positioned at the upper part of the shell, and the top of the plate-tube indirect evaporative cooler a is sequentially provided with a water distribution device a, a water baffle a, an exhaust fan a and an exhaust outlet a from bottom to top;
the plate-tube indirect evaporative cooler a is provided with a water storage tank a at the bottom, and the water distribution device a is connected with the water storage tank a through a water supply pipe a.
A circulating water pump a is arranged on the water supply pipe a, and a float valve a is arranged in the water storage tank a.
The direct evaporative cooling unit comprises a filler, and a water distribution device c, an ethylene glycol coil pipe, a water baffle c, an exhaust fan c and an exhaust outlet c are sequentially arranged on the top of the filler from bottom to top;
the bottom of the top of the filler is provided with a water storage tank c, and the water distribution device c is connected with the water storage tank c through a water supply pipe c;
the surface cooler is connected with the water storage tank c through a unit water supply pipe and a unit water return pipe to form a closed circulation pipeline; the unit water supply pipe and the unit water return pipe are respectively connected with the plate heat exchanger through water pipes and form a closed circulation channel.
The stuffing is V-shaped.
The water supply pipe c is sequentially provided with a gate valve, and the unit water supply pipe is also provided with a circulating water pump c.
A ball float valve b is arranged in the water storage tank c.
The utility model has the advantages that:
(1) the indirect evaporative cooling air conditioning system of the utility model can be used in various modes, adopts various cold and heat source modes such as direct-indirect evaporative cooling and natural cooling of glycol, improves the stability of the refrigeration performance of the evaporative cooling water chilling unit, and has the advantages of low operation cost, energy saving, reliability, safety and stability;
(2) the utility model discloses indirect evaporative cooling air conditioning system adopts the ethylene glycol coil pipe, can switch into ethylene glycol free cooling mode winter in cold areas, avoids the water pipe problem of freezing winter;
(3) the utility model discloses indirect evaporative cooling air conditioning system has adopted the surface cooler precooling new trend, and the air of once getting into after the precooling in the surface cooler, gets into inside the indirect evaporative cooler a of board tubular; after entering into the surface cooler for precooling, the secondary air sweeps over the outer side of the plate pipe type indirect evaporative cooler from bottom to top and carries out heat and moisture exchange with a water film on the outer wall of the plate pipe, so that the temperature of the primary air outside and the primary air inside is further reduced, and the temperature of the secondary air exhaust is effectively reduced;
(4) the utility model discloses indirect evaporative cooling air conditioning system packs and adopts the combination formula to pack, and this combination formula packs and divide into two-layer and arranges, and the upper strata is cubic material, and the lower floor packs for "V" type, has not only increased the volume of packing and with the area of contact of air, simultaneously the effectual space that utilizes the unit below, is guaranteeing the height of the effectual reduction unit under the prerequisite of packing height.
Drawings
Fig. 1 is a schematic structural diagram of a surface cooler precooling type indirect evaporative cooling air conditioning system of the present invention;
fig. 2 is a schematic structural diagram of a water chilling unit in a surface cooler precooling type indirect evaporative cooling air conditioning system of the present invention.
In the figure, 1, an air inlet a, 2, a coarse filter, 3, a surface cooler, 4, a circulating water pump a, 5, a water storage tank a, 6, a ball float valve a, 7, a water supply pipe a, 8, a plate-tube indirect evaporative cooler a, 9, a water supply pipe c, 10, a gate valve, 11, a water storage tank c, 12, a filler, 13, a baffle, 14, an air inlet b, 15, a water distribution device a, 16, a water baffle a, 17, an exhaust fan a, 18, an exhaust outlet a, 19, a water distribution device c, 20, an ethylene glycol coil, 21, a water baffle c, 22, an exhaust fan c, 23, an exhaust outlet c, 24, a centrifugal fan, 25, an air outlet, 26, a unit water return pipe, 27, a unit water supply pipe, 28, a plate heat exchanger, 29, a back plate coil, 30, a horizontal tube type air-air heat exchanger, 31, an exhaust fan, 32, an exhaust outlet, 33, a liquid pipe, 34, a circulating water pump c, 35 and a.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a surface cooler precooling type indirect evaporative cooling air conditioning system, as shown in figure 1, comprising a water chilling unit, wherein the water chilling unit is connected with a plate heat exchanger 28 through a water pipe and forms a closed circulation channel, and the plate heat exchanger 28 is also connected with a back plate coil 29 of a data center through a liquid pipe 33 and forms a closed circulation channel; the water chilling unit is also connected with a horizontal tube type air-air heat exchanger 30 positioned at the top of the data center through an air pipe, and air of the horizontal tube type air-air heat exchanger 30 is exhausted from an air outlet 32;
as shown in fig. 2, the water chilling unit comprises a shell, a direct evaporation cooling unit is arranged in the shell, the two sides of the direct evaporation cooling unit are symmetrical and the same in structure, an air inlet unit, a coarse filter 2, a surface air cooler 3, an indirect evaporation cooling unit, a direct evaporation cooling unit, a centrifugal fan 24 and an air outlet 25 are sequentially arranged in the air inlet direction, and the air outlet 25 is connected with an air pipe. The exhaust air of the direct evaporative cooling unit and the exhaust air of the indirect evaporative cooling unit are uniformly exhausted from the air outlet 25.
An exhaust fan 31 is arranged at the exhaust outlet 32.
The air inlet unit is provided with an air inlet b14, a baffle 13 and an air inlet a1 from top to bottom in sequence. Primary air enters the air inlet b14 to form a primary air channel; the air inlet a1 is used for entering secondary air, and a secondary air channel is formed.
The indirect evaporative cooling unit comprises a plate-tube type indirect evaporative cooler a8 positioned at the upper part of the shell, and a water distribution device a15, a water baffle a16, an exhaust fan a17 and an exhaust outlet a18 are sequentially arranged at the top of the plate-tube type indirect evaporative cooler a8 from bottom to top;
the plate-tube indirect evaporative cooler a8 is provided with a water storage tank a5 at the bottom, a water distribution device a15 is connected with the water storage tank a5 through a water supply pipe a7, and a valve is arranged on the water supply pipe a 7.
The water supply pipe a7 is provided with a circulating water pump a4, and the water storage tank a5 is provided with a ball float valve a 6.
The direct evaporative cooling unit comprises a filler 12, and a water distribution device c19, a glycol coil pipe 20, a water baffle c21, an exhaust fan c22 and an exhaust outlet c23 are sequentially arranged at the top of the filler 12 from bottom to top;
the bottom of the top of the filler 12 is provided with a water storage tank c11, and a water distribution device c19 is connected with the water storage tank c11 through a water supply pipe c 9;
the surface cooler 3 is connected with a water storage tank c11 through a unit water supply pipe 27 and a unit water return pipe 26 to form a closed circulation pipeline; the unit water supply pipe 27 and the unit water return pipe 26 are connected with the plate heat exchanger 28 through water pipes respectively and form a closed circulation channel.
The packing 12 is V-shaped, which can increase the contact area and accelerate the heat exchange rate.
The gate valve 10 is provided in sequence to the water supply pipe c9, and the circulating water pump c34 is provided to the unit water supply pipe 27.
A ball float valve b35 is arranged in the water storage tank c 11.
The invention relates to a working principle of a surface cooler precooling type indirect evaporative cooling air-conditioning system, which comprises the following steps:
outdoor fresh air enters the shell from an upper air duct air inlet a1 and a lower air duct air inlet b14, is filtered by the coarse filter 2, and primary air of the upper air duct is precooled in the surface air cooler 3 and then enters the interior of a plate tube a8 of the indirect evaporative cooling device; the secondary air of the lower air duct passes through the outer side of the plate pipe a8 of the indirect evaporative cooling device from bottom to top after being precooled in the surface air cooler 3, is exhausted from the air outlet a18 after performing heat-moisture exchange with the water film on the outer wall of the plate pipe, and then enters the direct evaporative cooling unit, is subjected to heat-moisture exchange with water in the filler 12 and is exhausted from the air outlet c 23.
The cold water produced by the unit is divided into two parts: a part of the heat is conveyed to a plate heat exchanger 28 for heat exchange; the other part is conveyed to a surface cooler 3 of a pre-cooling section of the unit; the backwater after absorbing heat is sent into the unit water distribution device c19 for spraying through the unit backwater pipe 26.
The air exhausted by the unit is sent into a horizontal pipe air-air heat exchanger 30 at the top of the data machine room, exchanges heat with the air in the machine room, and is exhausted from an air outlet 32 by an exhaust fan 31.
When the outdoor dry bulb temperature is lower than 3 ℃ in winter, the ethylene glycol natural cooling mode is operated, in order to prevent the unit from freezing and cracking, the spray water system stops working, outdoor cold air is fully utilized to cool the ethylene glycol solution in the ethylene glycol coil pipe 20, and the cooled ethylene glycol solution is introduced into the plate type heat exchanger 28 to exchange heat with the back plate coil pipe 29. The fresh outdoor air is filtered and then sent into the horizontal pipe air-air heat exchanger 30 to exchange heat with the indoor air in the machine room.
The utility model discloses indirect evaporative cooling air conditioning system utilizes evaporative cooling and ethylene glycol natural cooling technique, reduces the operation energy consumption, has solved the higher problem of current data center cooling system energy consumption.
Claims (9)
1. The surface cooler pre-cooling type indirect evaporative cooling air conditioning system is characterized by comprising a water chilling unit, wherein the water chilling unit is connected with a plate type heat exchanger (28) through a water pipe and forms a closed circulation channel, and the plate type heat exchanger (28) is also connected with a back plate coil (29) of a data center through a liquid pipe (33) and forms a closed circulation channel; the water chilling unit is also connected with a horizontal pipe type air-air heat exchanger (30) positioned at the top of the data center through an air pipe, and air of the horizontal pipe type air-air heat exchanger (30) is exhausted from an air outlet (32);
the water chilling unit comprises a shell, a direct evaporation cooling unit is arranged in the shell, the two sides of the direct evaporation cooling unit are symmetrical and identical in structure, an air inlet unit, a coarse filter (2), a surface air cooler (3), an indirect evaporation cooling unit, a direct evaporation cooling unit, a centrifugal fan (24) and an air outlet (25) are sequentially arranged according to the air inlet direction, and the air outlet (25) is connected with an air pipe.
2. Surface cooler pre-cooling type indirect evaporative cooling air conditioning system according to claim 1, wherein an exhaust fan (31) is arranged at the exhaust outlet (32).
3. The surface cooler pre-cooling type indirect evaporative cooling air conditioning system as recited in claim 1, wherein the air inlet unit is provided with an air inlet b (14), a baffle (13) and an air inlet a (1) from top to bottom in sequence.
4. The surface cooler pre-cooling type indirect evaporative cooling air conditioning system as recited in claim 1, wherein the indirect evaporative cooling unit comprises a plate-tube type indirect evaporative cooler a (8) positioned at the upper part of the shell, and a water distribution device a (15), a water baffle a (16), an exhaust fan a (17) and an exhaust outlet a (18) are sequentially arranged at the top of the plate-tube type indirect evaporative cooler a (8) from bottom to top;
the plate-tube indirect evaporative cooler a (8) is provided with a water storage tank a (5) at the bottom, and the water distribution device a (15) is connected with the water storage tank a (5) through a water supply pipe a (7).
5. A surface cooler pre-cooling type indirect evaporative cooling air conditioning system as claimed in claim 4, wherein the water supply pipe a (7) is provided with a circulating water pump a (4), and the water storage tank a (5) is provided with a float valve a (6).
6. The surface cooler pre-cooling type indirect evaporative cooling air conditioning system as recited in claim 1, wherein the direct evaporative cooling unit comprises a filler (12), and a water distribution device c (19), a glycol coil pipe (20), a water baffle c (21), an exhaust fan c (22) and an exhaust outlet c (23) are sequentially arranged on the top of the filler (12) from bottom to top;
the bottom of the top of the filler (12) is provided with a water storage tank c (11), and the water distribution device c (19) is connected with the water storage tank c (11) through a water supply pipe c (9);
the surface cooler (3) is connected with the water storage tank c (11) through a unit water supply pipe (27) and a unit water return pipe (26) to form a closed circulating pipeline; the unit water supply pipe (27) and the unit water return pipe (26) are respectively connected with the plate heat exchanger (28) through water pipes to form a closed circulation channel.
7. Surface cooler pre-cooling indirect evaporative cooling air conditioning system according to claim 6, wherein the packing (12) is "V" shaped.
8. A surface cooler pre-cooling type indirect evaporative cooling air conditioning system as claimed in claim 6, wherein the water supply pipe c (9) is sequentially provided with a gate valve (10), and the unit water supply pipe (27) is further provided with a circulating water pump c (34).
9. A surface cooler pre-cooling type indirect evaporative cooling air conditioning system as claimed in claim 6, wherein a float valve b (35) is arranged in the water storage tank c (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020304145.1U CN211792611U (en) | 2020-03-12 | 2020-03-12 | Surface cooler precooling type indirect evaporative cooling air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020304145.1U CN211792611U (en) | 2020-03-12 | 2020-03-12 | Surface cooler precooling type indirect evaporative cooling air-conditioning system |
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| Publication Number | Publication Date |
|---|---|
| CN211792611U true CN211792611U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020304145.1U Expired - Fee Related CN211792611U (en) | 2020-03-12 | 2020-03-12 | Surface cooler precooling type indirect evaporative cooling air-conditioning system |
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| CN (1) | CN211792611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111315193A (en) * | 2020-03-12 | 2020-06-19 | 西安工程大学 | Air conditioning system for data center combining evaporative cooling and surface air cooler technology |
-
2020
- 2020-03-12 CN CN202020304145.1U patent/CN211792611U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111315193A (en) * | 2020-03-12 | 2020-06-19 | 西安工程大学 | Air conditioning system for data center combining evaporative cooling and surface air cooler technology |
| CN111315193B (en) * | 2020-03-12 | 2024-04-30 | 西安工程大学 | Air conditioning system for data center combining evaporative cooling and surface cooler technologies |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 Termination date: 20210312 |
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| CF01 | Termination of patent right due to non-payment of annual fee |