CN211476384U - Air-conditioning pipeline system for ensuring year-round refrigeration of water chilling unit - Google Patents
Air-conditioning pipeline system for ensuring year-round refrigeration of water chilling unit Download PDFInfo
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- CN211476384U CN211476384U CN201922313154.7U CN201922313154U CN211476384U CN 211476384 U CN211476384 U CN 211476384U CN 201922313154 U CN201922313154 U CN 201922313154U CN 211476384 U CN211476384 U CN 211476384U
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- chilling unit
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Abstract
The utility model discloses a guarantee refrigerated air conditioner pipe-line system of cooling water set all year round, including outdoor cooling tower, indoor cooling water pump, indoor water-cooling water set, be equipped with the circulating line between cooling tower and the water-cooling water set, be equipped with cooling water pump on the circulating line between cooling tower delivery port and the water-cooling water set water inlet, still including locating indoor cooling water holding tank, temperature sensor, electric proportion two-way valve, the highest water storage position height of cooling water holding tank be less than cooling tower delivery port position height, cooling water holding tank be equipped with first water inlet, second water inlet, storage water tank delivery port, temperature sensor locate on the connecting tube of cooling water pump and water-cooling water set water inlet, electric proportion two-way valve locate on the connecting tube of second water inlet and circulating line. The utility model discloses rational in infrastructure, easy operation guarantees that water-cooling water chiller system also can normally open the operation winter.
Description
Technical Field
The utility model relates to a water-cooling air conditioning equipment technical field especially relates to a guarantee refrigerated air conditioning pipe-line system of cooling water set all the year round.
Background
According to the national standard, when the outdoor environment temperature is low, the water-cooling water chilling unit is additionally provided with low-temperature protection in the system design process for ensuring the reliability of the water-cooling water chilling unit, so that the water-cooling water chilling unit is not allowed to be started to be in a refrigeration state when the outdoor environment temperature is too low; in the practical use process, the air conditioning area is often divided into an inner area and an outer area, the ambient temperature of the inner area is high, refrigeration can be needed even if the outdoor ambient temperature is low, and particularly, in the industrial and agricultural production process, a water chilling unit is still needed to provide cold water even if the ambient temperature in winter is low due to process requirements; the traditional water-cooling chiller system is limited by the protection (low-temperature protection) of the over-low environmental temperature, and the refrigeration cannot be started, so that the process cold water cannot be provided.
Disclosure of Invention
The utility model relates to a solve under the relatively low condition of outdoor ambient temperature, the problem of operation also can normally be opened to water-cooling chiller system provides a rational in infrastructure, and easy operation guarantees that water-cooling chiller system also can normally open the air conditioner pipe-line system of operation winter.
In order to achieve the above object, the present invention provides an air conditioning piping system for ensuring year round refrigeration of a water chiller, comprising an outdoor cooling water tower, an indoor cooling water pump, an indoor water chiller, a circulation pipe arranged between the cooling water tower and the water chiller, a cooling water pump arranged on the circulation pipe between a water outlet of the cooling water tower and a water inlet of the water chiller, a cooling water storage tank arranged indoors, a temperature sensor, and an electric proportional two-way valve, wherein the highest water storage position of the cooling water storage tank is lower than the water outlet position of the cooling water tower, the cooling water storage tank is provided with a first water inlet, a second water inlet, a water storage tank water outlet, the first water inlet is communicated with the water outlet pipe of the cooling water tower, the second water inlet is communicated with the water inlet of the cooling water tower and the water outlet of the water chiller through a pipe, the water outlet of the water storage tank is communicated with a cooling water pump pipeline, the temperature sensor is arranged on a connecting pipeline of the cooling water pump and the water inlet of the water-cooling water chilling unit, the electric proportional two-way valve is arranged on a connecting pipeline of the second water inlet and the circulating pipeline, and the temperature sensor is electrically connected with the electric proportional two-way valve.
Preferably, a stop valve is arranged on a connecting pipeline between the second water inlet and the circulating pipeline.
Preferably, the bottom of the cooling water storage tank is provided with a drain valve.
The scheme is that a cooling water storage tank arranged indoors is additionally arranged between an outdoor cooling water tower and an indoor water cooling water chiller of the common water chiller system, when the water chiller system works at cold ambient temperature in winter, the cooling water storage tank can be used as a cold-hot water mixing device to properly improve the water temperature, when the water chiller system stops working, no water is stored in the outdoor cooling water tower, and all water is stored in the cooling water storage tank to prevent the water temperature from being too low; the altitude position of the cooling water storage tank is lower than that of the water outlet of the outdoor cooling water tower, and water can naturally flow into the cooling water storage tank from the water outlet of the cooling water tower and then enters the water-cooling water chilling unit for circulation through the cold water pump.
In the scheme, under the condition that the ambient temperature is high in summer and the water-cooled chiller can be normally started, the temperature sensor and the electric proportional two-way valve can be closed, the stop valve on the connecting pipeline of the second water inlet and the circulating pipeline is closed, and normal circulation is realized; and under the condition that the environmental temperature is lower in winter and the water-cooling water chilling unit cannot be normally started, the temperature sensor and electric proportional two-way valve is opened, the stop valve on the connecting pipeline of the second water inlet and the circulating pipeline is opened, and the return water temperature of cooling water of the general water-cooling water chilling unit is lower than that of cooling waterWhen the temperature is 15 ℃, the unit reports the temperature of cooling water to carry out over-low protection and can not be started, the optimal temperature of the cooling water for running the unit is generally 25 ℃, and after the unit is started, the inlet temperature (T) of the cooling water is detectedCooling down) When T isCooling down<TSetting upWhen the cooling water storage tank is started, the electric proportional two-way valve adjusts the opening degree through the PID controller, so that part of high-temperature cooling water directly returns to the cooling water storage tank, the return water temperature of the cooling water is increased to ensure that the unit is normally started, and the other part of cooling water returns to the cooling water storage tank after being radiated by the cooling water tower; when the unit is shut down, the cooling water pump stops working, cooling water in the cooling water tower enters the indoor cooling water outlet tank through natural drainage for later use, the cooling water temperature is higher when the water-cooled chiller unit is started again, the unit can be normally started, meanwhile, water is not stored in the cooling water tower, and the secondary opening of the unit is influenced by the icing of the cooling water tower when the outdoor environment temperature is too low is prevented.
The utility model has the advantages that: reasonable structure and simple operation, and ensures that the water-cooling water chilling unit system can be normally opened and operated in winter.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. cooling water tower 2, cooling water pump 3, water-cooling water chilling unit
4. Cooling water storage tank 5, temperature sensor 6 and electric proportional two-way valve
7. A first water inlet 8, a second water inlet 9 and a water outlet of the water storage tank
10. A stop valve 11 and a drain valve.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figure 1, an air-conditioning pipeline system for ensuring year-round refrigeration of a water chilling unit comprises an outdoor cooling water tower 1, an indoor cooling water pump 2 and an indoor water chilling unit 3, wherein a circulating pipeline is arranged between the cooling water tower 1 and the water chilling unit 3, the circulating pipeline between a water outlet of the cooling water tower 1 and a water inlet of the water chilling unit 3 is provided with the cooling water pump 2, the air-conditioning pipeline system further comprises a cooling water storage tank 4, a temperature sensor 5 and an electric proportion two-way valve 6 which are arranged indoors, the highest water storage position of the cooling water storage tank 4 is lower than the position of the water outlet of the cooling water tower 1, the cooling water storage tank 4 is provided with a first water inlet 7, a second water inlet 8 and a water storage tank water outlet 9, the first water inlet 7 is communicated with the water outlet pipeline of the cooling water tower 1, and the circulating pipeline, storage water tank delivery port 9 and cooling water pump 2 pipeline intercommunication, temperature sensor 5 locate cooling water pump 2 and water-cooling water chilling unit 3 water inlet on the connecting tube, electric proportion two-way valve 6 locates on the connecting tube of second water inlet 8 and circulating line, and temperature sensor 5 is connected with 6 electricity of electric proportion two-way valve:
a stop valve 10 is arranged on a connecting pipeline of the second water inlet 8 and the circulating pipeline;
the bottom of the cooling water storage tank 4 is provided with a drain valve 11.
In the specific use process, under the condition that the ambient temperature is high in summer and the water-cooled chiller unit 3 can be normally started, the temperature sensor 5 and the electric proportional two-way valve 6 can be closed, the stop valve 10 on the connecting pipeline of the second water inlet 8 and the circulating pipeline is closed, and normal circulation is realized;
and under the condition that the environmental temperature is lower in winter and the water-cooled water chilling unit 3 cannot be normally started, opening the temperature sensor 5 and the electric proportional two-way valve 6, opening the stop valve 10 on the connecting pipeline of the second water inlet 8 and the circulating pipeline, and detecting the water inlet temperature (T) of the cooling water after the unit is startedCooling down) When T isCooling down<TSetting upDuring operation, the electric proportional two-way valve 6 adjusts the opening degree through the PID controller, so that part of high-temperature cooling water directly returns to the cooling water storage tank 4, the return water temperature of the cooling water is increased to ensure that the unit is normally started, and the other part of the cooling water returns to the cooling water storage tank 4 after being radiated by the cooling water tower 1; when the unit is shut down, the cooling water pump 2 stops working, cooling water in the cooling water tower 1 enters the indoor cooling water storage tank 4 through natural drainage for later use, the unit can be normally started due to high cooling water temperature when the water-cooling water chiller 3 is started again, meanwhile, no water is stored in the cooling water tower 1, and the phenomenon that the secondary starting of the unit is influenced by the freezing of the cooling water tower when the outdoor environment temperature is too low is prevented; cooling water storage tankWhen the water amount in the water tank 4 is excessive, the drain valve 11 can be opened to drain the excessive water amount.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (3)
1. An air-conditioning pipeline system for ensuring year-round refrigeration of a water chilling unit comprises an outdoor cooling water tower, an indoor cooling water pump and an indoor water-cooling water chilling unit, wherein a circulating pipeline is arranged between the cooling water tower and the water-cooling water chilling unit, and the circulating pipeline between a water outlet of the cooling water tower and a water inlet of the water-cooling water chilling unit is provided with the cooling water pump, and is characterized by further comprising a cooling water storage tank, a temperature sensor and an electric proportional two-way valve which are arranged indoors, wherein the highest water storage position of the cooling water storage tank is lower than the position of the water outlet of the cooling water tower, the cooling water storage tank is provided with a first water inlet, a second water inlet and a water storage tank water outlet, the first water inlet is communicated with the water outlet pipeline of the cooling water tower, the second water inlet is communicated with the circulating pipeline between the water inlet of the, the temperature sensor is arranged on a connecting pipeline of the cooling water pump and the water inlet of the water-cooling water chilling unit, the electric proportional two-way valve is arranged on a connecting pipeline of the second water inlet and the circulating pipeline, and the temperature sensor is electrically connected with the electric proportional two-way valve.
2. The air conditioning pipe system for ensuring year round refrigeration of the water chilling unit as claimed in claim 1, wherein a stop valve is provided on a connection pipe of the second water inlet and the circulation pipe.
3. The air conditioning pipe system for ensuring year round refrigeration of the water chilling unit as claimed in claim 1, wherein the bottom of the cooling water storage tank is provided with a drain valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922313154.7U CN211476384U (en) | 2019-12-20 | 2019-12-20 | Air-conditioning pipeline system for ensuring year-round refrigeration of water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922313154.7U CN211476384U (en) | 2019-12-20 | 2019-12-20 | Air-conditioning pipeline system for ensuring year-round refrigeration of water chilling unit |
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| Publication Number | Publication Date |
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| CN211476384U true CN211476384U (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922313154.7U Active CN211476384U (en) | 2019-12-20 | 2019-12-20 | Air-conditioning pipeline system for ensuring year-round refrigeration of water chilling unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864988A (en) * | 2021-10-26 | 2021-12-31 | 珠海格力电器股份有限公司 | Air conditioning unit and control method thereof |
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2019
- 2019-12-20 CN CN201922313154.7U patent/CN211476384U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864988A (en) * | 2021-10-26 | 2021-12-31 | 珠海格力电器股份有限公司 | Air conditioning unit and control method thereof |
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