CN203615637U - All-weather air-cooled cold water chiller - Google Patents
All-weather air-cooled cold water chiller Download PDFInfo
- Publication number
- CN203615637U CN203615637U CN201320803592.1U CN201320803592U CN203615637U CN 203615637 U CN203615637 U CN 203615637U CN 201320803592 U CN201320803592 U CN 201320803592U CN 203615637 U CN203615637 U CN 203615637U
- Authority
- CN
- China
- Prior art keywords
- cooled cold
- finned
- cold water
- water chiller
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000005057 refrigeration Methods 0.000 claims abstract description 10
- 230000005494 condensation Effects 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 7
- 239000002826 coolant Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract 3
- 239000000110 cooling liquid Substances 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses an all-weather air-cooled cold water chiller which comprises a refrigeration compressor, a finned condenser, a throttle valve and an evaporator. The refrigeration compressor, the finned condenser, the throttle valve and the evaporator are sequentially connected to form a cooling liquid loop. The finned condenser comprises a finned heat exchanger, a sealing plate and a condensing fan, the sealing plate is arranged at the position of a ventilation opening of the finned heat exchanger, and a volume damper is installed on the sealing plate. The all-weather air-cooled cold water chiller can still run normally under the environment that the outdoor environment temperature is -15 DEG C to -20 DEG C, therefore, the problem of the territory restriction of use of an air-cooled cold water chiller is solved, the all-weather air-cooled cold water chiller can meet the use conditions of ninety percent of population residential zones, and the problem of product application which troubles the industry for a long time is solved.
Description
Technical field
The utility model relates to a kind of round-the-clock wind-cooled cold-water unit, belongs to field of mechanical technique.
Background technology
In prior art, handpiece Water Chilling Units is generally to discharge high temperature and high pressure gas by compressor to enter finned cooler (finned heat exchanger+shrouding+condensation fan composition), drive the wind in environment to flow through and produce heat exchange through the gap in the middle of finned heat exchanger by condensation fan, the refrigerant gas cooling of HTHP is condensed into refrigerant liquid, and after flow to choke valve through refrigerant tubing, choke valve is entering evaporimeter after liquid refrigerant decrease temperature and pressure, evaporate at evaporimeter inner refrigerant, draw heat from chilled water, then cold-producing medium gasification, again get back to compressor, complete a set of kind of refrigeration cycle.
In the refrigeration system of wind-cooled cold-water unit, the key that maintains the normal operation of whole system is the operating pressure of finned cooler, if the operating pressure of condenser is too low, the miscellaneous part of system all can not normally move, if forced service, unit will damage, and finned cooler pressure is relevant with the air quantity through finned heat exchanger with environment temperature, common wind-cooled cold-water unit is in the situation that fan delivery is certain, environment temperature is higher, pressure when condenser operation is also higher, if environment temperature is low, pressure is low, if in the certain situation of environment temperature, the air quantity of finned heat exchanger of flowing through is larger, condenser pressure is lower, air quantity is less, condensing pressure is higher, this is also why wind-cooled cold-water unit can not be in the reason of the northern area use in winter of China, because the winter temperature in the north is very low, concerning wind-cooled cold-water unit, cannot set up in the case the operating pressure of relatively high condenser, so environment temperature has limited the service condition of wind-cooled cold-water unit on region, the development prospect of this product is restricted.
Utility model content
Utility model object: the purpose of this utility model is in order to solve above the deficiencies in the prior art, provides a kind of round-the-clock wind-cooled cold-water unit,
Technical scheme: round-the-clock wind-cooled cold-water unit described in the utility model, its objective is such realization, a kind of round-the-clock wind-cooled cold-water unit, comprise refrigeration compressor, finned cooler, choke valve, evaporimeter, described refrigeration compressor, finned cooler, choke valve, evaporimeter connect and compose coolant circuit successively, described finned cooler comprises finned heat exchanger, shrouding and condensation fan, described shrouding is arranged on the ventilating opening place of finned heat exchanger, installs a volume damper on described shrouding.
Between described finned cooler and choke valve, be provided with pressure sensor, described pressure sensor is connected with PLC controller.
Described volume damper is electric control valve, and volume damper is connected with PLC controller.
Operation principle:
In the time that outdoor environment temperature is too low, volume damper is opened, wind is in passage flows into volume damper, and blown out by condensation fan more outdoor, now in the case of the air quantity of condensation fan is constant, by the wind of a short circuit part, and the air quantity of the finned heat exchanger that makes to flow through reduces, and then reach and promote the object of condenser pressure, after condensing pressure promotes, whole wind-cooled cold-water machine can be in the situation that environment temperature be lower normal refrigerating operaton.
The PLC controller that whole process is carried by handpiece Water Chilling Units is controlled, the built-in sub-acquisition module of PLC carrys out collecting temperature by being placed in outdoor environment temperature sensor, the result of whether opening air-valve and air-valve open degree is analyzed and is provided in internal arithmetic through PLC controller, again by built-in sub-output module output signal, drive volume damper to regulate, make it reach suitable open degree and regulate the number of bypass air quantity, thereby affect the pressure of condenser, make to reach rational pressure limit.
Beneficial effect: common wind-cooled cold-water unit scarcely can move in the situation that environment temperature is lower on the market, substantially within the time of the northern area of China 1/3, environment temperature is all not suitable for using wind-cooled cold-water unit, is that the scope of application of product is very limited.
And the utility model can still can normally move under the environment of outdoor environment temperature-15 ℃～-20 ℃, solve the use regional limits problem of wind-cooled cold-water unit, make its service condition that can meet 90% population residential area, solved puzzlement industry product application problem for a long time.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present utility model.
The specific embodiment
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection domain.
Shown in Figure 2, a kind of round-the-clock wind-cooled cold-water unit, comprise refrigeration compressor 1, finned cooler 2, choke valve 3, evaporimeter 4, described refrigeration compressor 1, finned cooler 2, choke valve 3, evaporimeter 4 connect and compose coolant circuit successively, described finned cooler 2 comprises finned heat exchanger 5, shrouding 6 and condensation fan 7, described shrouding 6 is arranged on the ventilating opening place of finned heat exchanger 5, installs a volume damper 8 on described shrouding 6.
Between described finned cooler 2 and choke valve 3, be provided with pressure sensor 9, described pressure sensor 9 is connected with PLC controller 10.
Described volume damper 8 is electric control valve, and volume damper 8 is connected with PLC controller 10.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a round-the-clock wind-cooled cold-water unit, comprise refrigeration compressor, finned cooler, choke valve, evaporimeter, described refrigeration compressor, finned cooler, choke valve, evaporimeter connect and compose coolant circuit successively, it is characterized in that, described finned cooler comprises finned heat exchanger, shrouding and condensation fan, described shrouding is arranged on the ventilating opening place of finned heat exchanger, installs a volume damper on described shrouding.
2. round-the-clock wind-cooled cold-water unit according to claim 1, is characterized in that, between described finned cooler and choke valve, is provided with pressure sensor, and described pressure sensor is connected with PLC controller.
3. round-the-clock wind-cooled cold-water unit according to claim 2, is characterized in that, described volume damper is electric control valve, and volume damper is connected with PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803592.1U CN203615637U (en) | 2013-12-06 | 2013-12-06 | All-weather air-cooled cold water chiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320803592.1U CN203615637U (en) | 2013-12-06 | 2013-12-06 | All-weather air-cooled cold water chiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203615637U true CN203615637U (en) | 2014-05-28 |
Family
ID=50768275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320803592.1U Expired - Lifetime CN203615637U (en) | 2013-12-06 | 2013-12-06 | All-weather air-cooled cold water chiller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203615637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708274A (en) * | 2018-12-29 | 2019-05-03 | 广东美的暖通设备有限公司 | The control method and device of cryogenic refrigeration air-valve |
-
2013
- 2013-12-06 CN CN201320803592.1U patent/CN203615637U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708274A (en) * | 2018-12-29 | 2019-05-03 | 广东美的暖通设备有限公司 | The control method and device of cryogenic refrigeration air-valve |
| US12038192B2 (en) | 2018-12-29 | 2024-07-16 | Hefei Midea Heating & Ventilating Equipment Co., Ltd. | Control methods and devices for a low-temperature cooling air valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
|
| CX01 | Expiry of patent term |