CN111306673A - Evaporative condenser combining vertical pipe indirect evaporative cooling - Google Patents
Evaporative condenser combining vertical pipe indirect evaporative cooling Download PDFInfo
- Publication number
- CN111306673A CN111306673A CN202010130649.0A CN202010130649A CN111306673A CN 111306673 A CN111306673 A CN 111306673A CN 202010130649 A CN202010130649 A CN 202010130649A CN 111306673 A CN111306673 A CN 111306673A
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- Prior art keywords
- evaporative
- condenser
- water
- filler
- vertical pipe
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- 238000001816 cooling Methods 0.000 title claims abstract description 51
- 239000003507 refrigerant Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 84
- 239000000945 filler Substances 0.000 claims description 34
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims 2
- 238000001704 evaporation Methods 0.000 abstract description 11
- 230000008020 evaporation Effects 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 description 7
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses an evaporative condenser combining with vertical pipe indirect evaporative cooling, which comprises a condenser shell, wherein the condenser shell is divided into a left part and a right part, an evaporative cooling unit and a vertical pipe indirect evaporative cooler are respectively arranged in the condenser shell, and the lower part and the upper part of the right side wall of the condenser shell are respectively provided with an air inlet and an air outlet. According to the evaporative condenser combining the vertical pipe indirect evaporation cooling, the exhaust air of the evaporation condensing unit and the vertical pipe indirect evaporation cooler is used for primary cooling of the high-temperature refrigerant, the cooled refrigerant enters the evaporation condensing unit for secondary cooling, the cold energy is fully utilized, the energy efficiency of the condenser is improved, and the problem that the existing evaporative condenser is low in cooling efficiency is solved.
Description
Technical Field
The invention belongs to the technical field of air conditioning equipment, and relates to an evaporative condenser combining with a vertical pipe for indirect evaporative cooling.
Background
Along with the development of science and technology and economy, the living standard of people is improved, the application of the refrigeration technology is more and more extensive, and an evaporator is used as indispensable heat exchange equipment in a refrigeration system and can be divided into a water cooling type, an air cooling type and an evaporation cooling type according to the difference of cooling media. With the development of air conditioning technology, the traditional mechanical refrigeration air conditioning mode is in conversion upgrading, the evaporative cooling technology is a green energy-saving technology for absorbing heat and refrigerating by utilizing water evaporation, the evaporative condenser combines a cooling tower and a condenser into a whole by utilizing the evaporative cooling technology, air and water are used as cooling media, heat and moisture exchange between the air and the water is carried out by directly or indirectly contacting the air and the water, and a high-temperature refrigerant is cooled. The evaporative cooling technology is applied to meet the sustainable development policy of the national green environmental protection, and also meets the slightly greater direction of the national energy-saving and emission-reducing war.
The existing evaporative condenser has low cooling efficiency.
Disclosure of Invention
The invention aims to provide an evaporative condenser combining with riser indirect evaporative cooling, wherein exhaust air of an evaporative condensing unit and a riser indirect evaporative cooler is used for primary cooling of a high-temperature refrigerant, the cooled refrigerant enters the evaporative condensing unit for secondary cooling, the cold energy is fully utilized, the energy efficiency of the condenser is improved, and the problem that the existing evaporative condenser is low in cooling efficiency is solved.
The invention adopts the technical scheme that the evaporative condenser combining the vertical pipe indirect evaporative cooling comprises a condenser shell, wherein the condenser shell is divided into a left part and a right part, an evaporative cooling unit and a vertical pipe indirect evaporative cooler are respectively arranged in the condenser shell, and the lower part and the upper part of the right side wall of the condenser shell are respectively provided with an air inlet and an air outlet.
The present invention is also characterized in that,
the vertical pipe indirect evaporative cooler comprises a vertical pipe heat exchanger, a water storage tank b is arranged below the vertical pipe heat exchanger, a water distribution device b, a water baffle b, a secondary fan and an air outlet b are sequentially arranged above the vertical pipe heat exchanger from bottom to top, and the water storage tank b is communicated with the water distribution device b through a water supply pipe b.
The water supply pipe b is connected with a circulating water pump b and a regulating valve b.
A coarse filter is arranged between the vertical pipe heat exchanger and the air inlet.
A ball float valve b is arranged in the water storage tank b.
The air outlet is provided with a centrifugal fan.
The evaporative cooling unit comprises a filler arranged corresponding to an air inlet, a condensing coil, a water distribution device a, a water baffle a, an exhaust fan and an air outlet a are sequentially arranged above the filler from bottom to top, a water storage tank a is arranged below the filler, the water storage tank a is connected with the water distribution device a through a water supply pipe a, the condensing coil is arranged above the vertical pipe indirect evaporative cooler and the evaporative cooling unit in the condenser shell, the condensing coil is arranged above the vertical pipe indirect evaporative cooler and the evaporative cooling unit and the condensing coil arranged between the filler and the water distribution device a are connected into a whole, a refrigerant outlet of the condensing coil extends out of the condenser shell from a position close to the filler, and a refrigerant inlet of the condensing coil extends out of the side wall of the condenser shell corresponding to the position above the evaporative cooling unit.
The water supply pipe a is also provided with a circulating water pump a and an adjusting valve a.
A ball float valve a is also arranged in the water storage tank a.
The filler sets up to right angle trapezoidal form, and the inclined plane of filler just upwards slopes towards the air intake.
The invention has the beneficial effects that:
(1) the exhaust of the evaporation condensation unit and the vertical pipe indirect unit is used for primary cooling of the high-temperature refrigerant, and the cooled refrigerant enters the evaporation condensation unit for secondary cooling, so that the cold energy is fully utilized, and the energy efficiency of the condenser is improved;
(2) the indirect evaporative cooling section adopts a vertical tube type indirect evaporative cooler, secondary air and spray water are subjected to direct evaporative cooling in wet channels in the vertical tube, primary air flows through a dry channel on the outer side of the tube and is subjected to equal-humidity cooling by contacting with the tube wall, and the air flow channel on the outer side of the tube is wide, so that the air flow channel 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; the porous ceramic material is adopted, so that the material has high porosity and high strength, the specific surface area can be effectively increased, and the heat exchange effect is enhanced;
(3) the vertical tube type indirect evaporative cooler is adopted to pre-cool fresh air, the pre-cooled fresh air performs heat and moisture exchange with water in the filler of the evaporative condensing unit and then sweeps across the surface of the condensing coil from bottom to top, so that the temperature of a refrigerant in the condensing coil is further reduced, and meanwhile, the temperature of exhaust air is effectively reduced.
(4) According to the riser indirect evaporative condenser, the filler is a combined filler which is divided into two layers, the upper layer is made of a square material, the lower layer is made of a triangular pyramid-shaped filler, the volume of the filler and the contact area of the filler with air are increased, and meanwhile the problem of uneven resistance when air flow is in contact with the filler is effectively solved due to the inclined surface design of the bottom filler.
(5) According to the vertical pipe indirect evaporation type condenser, the filler is arranged in the lower portion of the condensing coil, air in the air inlet and water are preferentially cooled in the evaporative cooling process in the filler, and then the air is blown to the coil again, so that the heat exchange efficiency is improved, and the water temperature of circulating water is reduced.
Drawings
FIG. 1 is a schematic diagram of an evaporative condenser incorporating riser indirect evaporative cooling according to the present invention;
fig. 2 is a schematic diagram of a cooling unit of a riser indirect evaporative cooler in an evaporative condenser incorporating the riser indirect evaporative cooling of the present invention.
In the figure, 1, an air inlet, 2, an air outlet, 3, a centrifugal fan, 4, a refrigerant inlet, 5, an air outlet a, 6, an exhaust fan, 7, a water baffle a, 8, a water distribution device a, 9, a condensing coil, 10, a refrigerant outlet, 11, a filler, 12, a water storage tank a, 13, a circulating water pump a, 14, a ball float valve a, 15, a water supply pipe a, 16, a vertical pipe indirect evaporation cooler, 17, a water storage tank b, 18, a circulating water pump b, 19, a ball float valve b, 20, a water supply pipe b, 21, a coarse filtering section, 22, a water distribution device b, 23, a water baffle b, 24, a secondary fan, 25, an air outlet b, 26, a condenser shell, 27, a regulating valve b, 28 and a regulating valve a are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to an evaporative condenser combining with a vertical pipe indirect evaporative cooling, which has a structure shown in figure 1 and comprises a condenser shell 26, wherein the condenser shell 26 is divided into a left part and a right part, an evaporative cooling unit and a vertical pipe indirect evaporative cooler are respectively arranged in the condenser shell 26, and the lower part and the upper part of the right side wall of the condenser shell 26 are respectively provided with an air inlet 1 and an air outlet 2.
The riser indirect evaporative cooler comprises a riser heat exchanger 16, a water storage tank b17 is arranged below the riser heat exchanger 16, a water distribution device b22, a water baffle b23, a secondary fan 24 and an air outlet b25 are sequentially arranged above the riser heat exchanger 16 from bottom to top, and the water storage tank b17 is communicated with the water distribution device b22 through a water supply pipe b 20.
A circulating water pump b18 and an adjusting valve b27 are connected to the water supply pipe b 20.
A coarse filter 21 is arranged between the vertical pipe heat exchanger 16 and the air inlet 1.
A float valve b19 is arranged in the water storage tank b 17.
The air outlet 2 is provided with a centrifugal fan 3.
The evaporative cooling unit comprises a filler 11 arranged corresponding to the air inlet 1, a condensing coil 9, a water distribution device a8, a water baffle a7, an exhaust fan 6 and an air outlet a5 are sequentially arranged above the filler 11 from bottom to top, a water storage tank a12 is arranged below the filler 11, the water storage tank a125 and the water distribution device a8 are connected through a water supply pipe a15, the condensing coil is further arranged above the riser indirect evaporative cooler and the evaporative cooling unit in the condenser shell 26, the condensing coil above the riser indirect evaporative cooler and the evaporative cooling unit and the condensing coil 9 between the filler 11 and the water distribution device a8 are connected into a whole, a refrigerant outlet 10 of the condensing coil 9 extends out of the condenser shell 26 from a position close to the filler 11, and a refrigerant inlet 4 of the condensing coil 9 extends out of the side wall of the condenser shell 26 corresponding to the position above the evaporative cooling unit.
The water supply pipe a15 is also provided with a circulating water pump a13 and a regulating valve a 28.
A ball float valve a14 is also arranged in the water storage tank a 12.
The heat exchange tube material of the vertical tube indirect evaporative cooler adopts porous ceramic material.
The exhaust fan 6 and the secondary fan 24 are axial flow fans.
The water baffles a7 and b23 between the water distributor a8 and b22 and the exhaust fan 6 and the secondary fan 24 are corrugated water baffles.
The working principle of the evaporative condenser of the invention is as follows:
outdoor fresh air enters the unit from the air inlet 1, is filtered by the coarse filter 21 and then reaches the vertical pipe indirect evaporative cooler, secondary air entering the vertical pipe and water on the inner wall of the pipe are subjected to direct evaporative cooling, and primary air passing through the outside of the pipe is precooled.
The precooled fresh air enters an evaporation condensation section, is directly evaporated and cooled in the filler 11, performs heat and humidity exchange with water in the filler 11, sweeps the outer side of the condensation coil 9 from bottom to top after the temperature of the fresh air is reduced by humidity, a high-temperature refrigerant enters the condensation coil 9 from the refrigerant inlet 4 and is primarily cooled with the exhaust air of the unit, a water film on the outer wall of the condensation coil 9 performs heat and humidity exchange with the cooled fresh air to take away the heat of the refrigerant in the pipe, the refrigerant is secondarily cooled, the cooled refrigerant is discharged out of the unit from the refrigerant outlet 10, and the air after the heat and humidity exchange is discharged out of the unit from the air outlet 2 through the centrifugal fan 3.
Claims (10)
1. The evaporative condenser combined with the vertical pipe indirect evaporative cooling is characterized by comprising a condenser shell (26), wherein the condenser shell (26) is divided into a left part and a right part, an evaporative cooling unit and a vertical pipe indirect evaporative cooler are respectively arranged in the condenser shell, and an air inlet (1) and an air outlet (2) are respectively arranged on the lower part and the upper part of the right side wall of the condenser shell (26).
2. The evaporative condenser, as recited in claim 1, wherein the riser indirect evaporative cooler comprises a riser heat exchanger (16), a water storage tank b (17) is disposed below the riser heat exchanger (16), a water distribution device b (22), a water baffle b (23), a secondary air blower (24) and an air outlet b (25) are sequentially disposed above the riser heat exchanger (16) from bottom to top, and the water storage tank b (17) and the water distribution device b (22) are communicated through a water supply pipe b (20).
3. The evaporative condenser, as recited in claim 2, wherein a circulating water pump b (18) and a regulating valve b (27) are connected to the water supply pipe b (20).
4. Evaporative condenser, according to claim 2, characterized in that a coarse filter (21) is arranged between the riser heat exchanger (16) and the air intake (1).
5. The evaporative condenser, as recited in claim 2, wherein a float valve b (19) is provided in said water reservoir b (17).
6. Evaporative condenser, according to claim 1 or 2, characterized in that a centrifugal fan (3) is arranged at the air outlet (2).
7. The evaporative condenser according to claim 1 or 2, wherein the evaporative cooling unit comprises a filler (11) disposed corresponding to the air inlet (1), a condensing coil (9), a water distribution device a (8), a water baffle a (7), an exhaust fan (6) and an air outlet a (5) are sequentially disposed above the filler (11) from bottom to top, a water storage tank a (12) is disposed below the filler (11), the water storage tank a (125) and the water distribution device a (8) are connected through a water supply pipe a (15), a condensing coil is further disposed above the riser indirect evaporative cooler and the evaporative cooling unit in the condenser shell (26), the condensing coil above the riser indirect evaporative cooler and the evaporative cooling unit and the condensing coil (9) between the filler (11) and the water distribution device a (8) are connected into a whole, the refrigerant outlet (10) of the condensing coil (9) extends out of the condenser shell (26) from a position close to the filler (11), and the refrigerant inlet (4) of the condensing coil (9) extends out of the corresponding side wall of the condenser shell (26) above the evaporative cooling unit.
8. The evaporative condenser, as recited in claim 7, wherein the water supply pipe a (15) is further provided with a circulating water pump a (13) and a regulating valve a (28).
9. The evaporative condenser, as recited in claim 7, wherein a float valve a (14) is further provided in said water reservoir a (12).
10. The evaporative condenser, as recited in claim 7, wherein the packing (11) is provided in a right trapezoid shape, the inclined surface of the packing (11) is inclined upward toward the air inlet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130649.0A CN111306673A (en) | 2020-02-28 | 2020-02-28 | Evaporative condenser combining vertical pipe indirect evaporative cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130649.0A CN111306673A (en) | 2020-02-28 | 2020-02-28 | Evaporative condenser combining vertical pipe indirect evaporative cooling |
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| Publication Number | Publication Date |
|---|---|
| CN111306673A true CN111306673A (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010130649.0A Pending CN111306673A (en) | 2020-02-28 | 2020-02-28 | Evaporative condenser combining vertical pipe indirect evaporative cooling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050324A (en) * | 2020-08-19 | 2020-12-08 | 西安工程大学 | Plate-fin indirect evaporative cooling unit based on air cooling precooling |
| CN112833590A (en) * | 2021-01-12 | 2021-05-25 | 南京航空航天大学 | Evaporative condenser with double precooling systems and embedded foam fin plates and method |
| CN114857978A (en) * | 2022-04-18 | 2022-08-05 | 南京航空航天大学 | Waste heat recoverer and method combining direct evaporation and indirect evaporation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103759357A (en) * | 2014-01-08 | 2014-04-30 | 西安工程大学 | Evaporative cooling and mechanical refrigeration combined air/ water chilling unit for power plant |
| CN109855218A (en) * | 2019-02-25 | 2019-06-07 | 昆山台佳机电有限公司 | Integrated enclosed evaporates cooling-condensation water cooler |
| CN109855219A (en) * | 2019-02-25 | 2019-06-07 | 昆山台佳机电有限公司 | Integral type based on mechanical refrigeration evaporates cooling-condensation water cooler |
| CN209840328U (en) * | 2019-02-25 | 2019-12-24 | 昆山台佳机电有限公司 | Double-cold evaporative cooling-condensation integrated air conditioning unit for data center machine room |
| CN110762909A (en) * | 2019-10-23 | 2020-02-07 | 西安工程大学 | Evaporation type condenser based on dew point indirect evaporation cooling precooling |
| CN212108845U (en) * | 2020-02-28 | 2020-12-08 | 西安工程大学 | Evaporative condenser based on indirect evaporative cooling of condenser coil and vertical pipe |
-
2020
- 2020-02-28 CN CN202010130649.0A patent/CN111306673A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759357A (en) * | 2014-01-08 | 2014-04-30 | 西安工程大学 | Evaporative cooling and mechanical refrigeration combined air/ water chilling unit for power plant |
| CN109855218A (en) * | 2019-02-25 | 2019-06-07 | 昆山台佳机电有限公司 | Integrated enclosed evaporates cooling-condensation water cooler |
| CN109855219A (en) * | 2019-02-25 | 2019-06-07 | 昆山台佳机电有限公司 | Integral type based on mechanical refrigeration evaporates cooling-condensation water cooler |
| CN209840328U (en) * | 2019-02-25 | 2019-12-24 | 昆山台佳机电有限公司 | Double-cold evaporative cooling-condensation integrated air conditioning unit for data center machine room |
| CN110762909A (en) * | 2019-10-23 | 2020-02-07 | 西安工程大学 | Evaporation type condenser based on dew point indirect evaporation cooling precooling |
| CN212108845U (en) * | 2020-02-28 | 2020-12-08 | 西安工程大学 | Evaporative condenser based on indirect evaporative cooling of condenser coil and vertical pipe |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050324A (en) * | 2020-08-19 | 2020-12-08 | 西安工程大学 | Plate-fin indirect evaporative cooling unit based on air cooling precooling |
| CN112050324B (en) * | 2020-08-19 | 2024-03-12 | 西安工程大学 | Plate-fin indirect evaporative cooling unit based on air-cooled precooling |
| CN112833590A (en) * | 2021-01-12 | 2021-05-25 | 南京航空航天大学 | Evaporative condenser with double precooling systems and embedded foam fin plates and method |
| CN112833590B (en) * | 2021-01-12 | 2021-11-23 | 南京航空航天大学 | Evaporative condenser with double precooling systems and embedded foam fin plates and method |
| CN114857978A (en) * | 2022-04-18 | 2022-08-05 | 南京航空航天大学 | Waste heat recoverer and method combining direct evaporation and indirect evaporation |
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Application publication date: 20200619 |
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