CN218846942U - High-efficient cooling water circulation system - Google Patents
High-efficient cooling water circulation system Download PDFInfo
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- CN218846942U CN218846942U CN202222980576.1U CN202222980576U CN218846942U CN 218846942 U CN218846942 U CN 218846942U CN 202222980576 U CN202222980576 U CN 202222980576U CN 218846942 U CN218846942 U CN 218846942U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The problem that energy is wasted due to the fact that an existing cooling system is low in energy efficiency is solved; the utility model provides a high-efficient cooling water circulating system, including the cooling water set, cooling water pump and cooling tower, the wet return is equipped with a plurality of parallel connection's cooling water pump, the hydrophone is all installed at the inlet tube top of every cooling tower, install first pressure sensor and first temperature sensor on the feed pipe, install second pressure sensor and second temperature sensor on the wet return, the differential pressure control cooling water pump rotational speed that detects of first pressure sensor and second pressure sensor, the fan frequency of the temperature difference control cooling tower of the temperature that first temperature sensor and second temperature sensor detected. The utility model discloses a cooling tower fan consumption can be practiced thrift to the control strategy of "crowd's machine to crowd's tower", and all filler heat transfer areas of make full use of reduce the consumption and the cooling water temperature of cooling water pump and cooling tower, have improved the host computer efficiency, make the system more energy-efficient.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner water cooling system, especially, high-efficient cooling water circulating system.
Background
From 1/4/2022, the mandatory engineering construction standard of general Specification for building energy conservation and renewable energy utilization (GB 55015-2021) is officially implemented; the calculation of building carbon emissions is mandatory. The implementation of carbon peak reaching and carbon neutralization is a necessary choice for solving the problem of outstanding resource and environment constraints and realizing the sustainable development of Chinese nations, and the fourteen-five period is about to become the key period and the window period for realizing carbon peak reaching in China.
According to the research report on development of Chinese high-efficiency air-conditioning and refrigerating machine rooms (2021), it is shown that the building energy consumption accounts for 35% of the total social energy consumption, the refrigerating system accounts for 50% of the building energy consumption, the refrigerating electric quantity accounts for more than 15% of the total social electric quantity, and the annual increase of the electric quantity is 20 per thousand. Global building refrigeration machine rooms are generally low in energy efficiency, currently, the average value of the average integrated energy efficiency (SCOP) of Chinese refrigeration machine rooms is only 3.6, and the average value of the average integrated energy efficiency (SCOP) of American refrigeration machine rooms is only 4.0. Therefore, the energy efficiency of the building refrigeration machine room is improved, and the method is one of important ways for improving the total energy consumption of the building and reducing the electricity consumption.
In a water-cooling central air-conditioning system, the heat exchange efficiency of a cooling tower directly determines the outlet water temperature of cooling water, and further influences the operation energy efficiency of an air-conditioning host. Therefore, the research on how to improve the heat exchange efficiency of the cooling tower and reduce the amplitude difference between the outlet water temperature of the cooling tower and the outdoor wet bulb temperature is particularly important for improving the energy efficiency of the central air-conditioning system.
SUMMERY OF THE UTILITY MODEL
The problem that energy is wasted due to low energy efficiency of an existing cooling system is solved; the utility model provides a high-efficient cooling water circulating system, adopt the control strategy of "crowd's machine to crowd's tower", when 1 at least cooling tower starts, the frequency conversion operation is united to all cooling towers, the problem of traditional "unit to single tower" control strategy cooling tower outlet water high temperature under the part load operating mode has been solved, cooling tower fan consumption has been practiced thrift simultaneously, make full use of all filler heat transfer areas, the consumption and the cooling water temperature of cooling water pump and cooling tower have been reduced, the host computer efficiency has been improved, make the system more energy-efficient.
The utility model provides a high-efficient cooling water circulation system, its technical scheme who solves technical problem includes cooling water set, cooling water pump and cooling tower, the delivery port of cooling water set passes through the feed pipe and links to each other with the cooling tower water inlet, the quantity of cooling tower is many and parallel connection each other, the delivery port of cooling tower passes through the wet return and is connected with the water inlet of cooling water set, the wet return is equipped with a plurality of parallel connection's cooling water pump, every the homoenergetic is installed at the inlet tube top of cooling tower, install first pressure sensor and first temperature sensor on the feed pipe, first pressure sensor is used for detecting the pressure of intaking that gets into the cooling tower, first temperature sensor is used for detecting the temperature of intaking that gets into the cooling tower, install second pressure sensor and second temperature sensor on the wet return, second pressure sensor is used for detecting the play water pressure of cooling tower, second temperature sensor is used for detecting the play water temperature of cooling tower, the differential control cooling water pump rotational speed that first pressure sensor and second pressure sensor detected, the fan of the control cooling tower temperature that first temperature sensor and second temperature sensor detected. Through installing the homoenergetic on the cooling tower, can guarantee the evenly distributed of the cooling water in a plurality of cooling towers of operation in-process, simultaneously through first pressure sensor, first temperature sensor, second pressure sensor and second temperature sensor's setting, can detect the pressure temperature of intaking pressure temperature and play water at any time to realize the control to the rotational speed of the fan of cooling water pump and cooling tower according to business turn over water pressure difference and difference in temperature, can practice thrift the energy consumption better, guarantee the temperature of cooling water, improve the cooling effect, the utility model discloses a "crowd's machine is to the control strategy of crowd ' tower", when 1 at least cooling tower starts, all cooling towers jointly frequency conversion operation have solved traditional "unit to single-tower" control strategy cooling tower play water temperature too high problem under the part load operating mode.
Preferably, the number of cooling towers is at least 3. The cooling towers are connected in parallel, so that a control strategy of 'group machine to group tower' can be realized according to needs in actual use, and the purposes of improving the cooling effect and saving energy consumption are achieved.
Preferably, the liquid level in the water equalizer is higher than the highest point of the water inlet pipe of the cooling tower. The water uniformizing device can uniformly distribute the cooling water among the cooling towers, and in the actual working process, the liquid level in the water uniformizing device is higher than the highest point of the water inlet pipe of the cooling tower, so that the water distribution among the cooling towers can be well guaranteed to be uniform through the principle of the communicating vessel.
Preferably, a self-adaptive variable flow nozzle is installed in the cooling tower, and a water storage core and a diversion trench are arranged in the self-adaptive variable flow nozzle. The self-adaptive variable flow nozzle is adopted, and the problems of low-efficiency operation, such as uneven water distribution, filler waste, short circuit of air from a water-free area and the like of a conventional nozzle when the water quantity of the cooling tower is below 70 percent, are solved.
Preferably, a full-automatic scale catching instrument is installed in a water tray of the cooling tower. The automatic scale catcher is immersed in the water tray, so that scale in the filter screen can be regularly cleaned, and the problem of scaling of pipelines and inner walls of equipment in a cooling water system is solved.
Preferably, a frequency converter is mounted on a fan of the cooling tower.
Preferably, the number of the cooling water pumps is 2-4, and the frequency converter is installed on each cooling water pump. Through installing the converter additional, be convenient for through pressure sensor and temperature sensor's detected signal, control the operating frequency and the rotational speed of fan and the cooling water pump of cooling tower, can guarantee energy-conservation and cooling effect better.
Preferably, still include the controller, first pressure sensor, first temperature sensor, second pressure sensor and second temperature sensor all are connected with the input communication of controller, the output and the fan and the cooling water pump communication of cooling tower of controller are connected. Through setting up the controller, be convenient for handle the pressure signal and the temperature signal who gather to turn into control signal and be used for controlling the operation at the fan of cooling tower and cooling water pump.
In summary, the utility model has at least the following advantages;
1. by adopting a control strategy of 'group machine to group tower', when at least 1 cooling tower is started, all cooling towers run in a combined frequency conversion manner, the problem that the outlet water temperature of the cooling tower is overhigh under the partial load working condition by using a traditional 'single machine to single tower' control strategy is solved, the power consumption of a fan of the cooling tower is saved, and the heat exchange area of all fillers is fully utilized;
2. the water equalizer is additionally arranged on each cooling tower, so that the problem of uneven distribution of cooling water among the cooling towers when the cooling towers are connected in parallel is solved;
3. the self-adaptive variable flow nozzle is arranged in the cooling tower, so that the cooling tower has the functions of water storage and variable flow uniform water distribution, and the problems of uneven water distribution, filler waste, short circuit of air from a water-free area and other low-efficiency operation of the conventional nozzle when the water quantity of the cooling tower is below 70 percent are solved;
4. in the transition season, when the system operates at low load, the operation mode that 2 cooling water pumps operate at low frequency and correspond to 1 water chilling unit can be adopted, so that the problem that the heat exchange quantity of a cooling water system is matched and the flow is insufficient is solved;
5. the rotating speeds of the cooling water pump and the fan of the cooling tower can be adjusted in real time by the controller according to the change of temperature and pressure, so that the problem of overhigh energy consumption of the water pump and the cooling tower is effectively solved;
6. the full-automatic electromagnetic scale catching instrument is additionally arranged at the bottom of a water pan of the cooling tower, so that the problem of scaling of the inner walls of pipelines and equipment in a cooling water system is solved;
7. the water temperature of cooling water is reduced, the energy efficiency of a water chilling unit is improved, and the air conditioning system is more energy-saving; in the energy-saving transformation of the air conditioning system, the investment cost of the transformation of the cooling water system is low, the investment recovery period is short, and the energy-saving benefit is remarkable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the whole structure of the cooling water circulation system of the present invention.
In the figure: 1. a water chilling unit; 2. a cooling water pump; 3. a cooling tower; 4. a water supply pipe; 5. a water return pipe; 6. a water homogenizing device; 7. a first pressure sensor; 8. a first temperature sensor; 9. a second pressure sensor; 10. a second temperature sensor; 11. a self-adaptive variable flow nozzle; 12. a full-automatic scale catching instrument.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The utility model provides a high-efficient cooling water circulation system, as shown in figure 1, including cooling water set 1, cooling water pump 2 and cooling tower 3, be equipped with cooling water inlet and delivery port on cooling water set 1, wherein the delivery port of cooling water set 1 passes through the feed pipe 4 and links to each other with cooling tower 3 water inlets, the delivery port of cooling tower 3 passes through wet return 5 and is connected with cooling water set 1's water inlet, the utility model provides a quantity of cooling tower 3 is many and parallel connection each other, is equipped with a plurality of parallel connection's cooling water pump 2 at wet return 5, the utility model discloses a control strategy of "crowd's machine to crowd's tower" when 1 at least cooling tower 3 starts, all cooling towers 3 joint frequency conversion operation have solved traditional "unit to single tower" control strategy and have cooled tower 3 out the too high problem of water temperature under the part load operating mode.
Wherein the top of the water inlet pipe of each cooling tower 3 is provided with a water distributor 6, which can ensure the uniform distribution of the cooling water in a plurality of cooling towers 3 in the operation process. Install first pressure sensor 7 and first temperature sensor 8 on feed pipe 4, first pressure sensor 7 is used for detecting the pressure of intaking that gets into cooling tower 3, first temperature sensor 8 is used for detecting the temperature of intaking that gets into cooling tower 3, install second pressure sensor 9 and second temperature sensor 10 on wet return 5, second pressure sensor 9 is used for detecting the water pressure of cooling tower 3, second temperature sensor 10 is used for detecting the water temperature of the play of cooling tower 3, the pressure differential control cooling water pump 2 rotational speeds that detect of first pressure sensor 7 and second pressure sensor 9, the fan frequency of the difference in temperature control cooling tower 3 of the temperature that first temperature sensor and second temperature sensor 10 detected. Through the setting of first pressure sensor 7, first temperature sensor 8, second pressure sensor 9 and second temperature sensor 10, can detect the pressure temperature of intaking pressure temperature and play water at any time to realize the control to the rotational speed of the fan of cooling water pump 2 and cooling tower 3 according to business turn over water pressure differential and difference in temperature, wherein when the seasonal system of transition low load operation, can adopt 2 cooling water pump 2 low frequency operation to correspond 1 cooling water set 1's operation mode, solved cooling water system heat transfer volume matching and the not enough problem of flow.
The utility model provides a quantity of cooling tower 3 is 3 at least. The cooling towers 3 are connected in parallel, so that a control strategy of 'group machines to group towers' can be realized as required in actual use, and the purposes of improving the cooling effect and saving energy consumption are achieved.
In order to better ensure the distribution of the cooling water in each cooling tower 3, the utility model discloses the liquid level in the homowater device 6 is higher than the peak of the inlet tube of the cooling tower 3. The water uniformizing device 6 can uniformly distribute the cooling water among the cooling towers 3, and in the actual working process, the liquid level in the water uniformizing device 6 is higher than the highest point of the water inlet pipe of the cooling tower 3, so that the water distribution among the cooling towers 3 can be well guaranteed to be uniform through the principle of the communicating vessel.
The utility model discloses a one of them embodiment does, installs self-adaptation variable flow shower nozzle 11 in cooling tower 3, have retaining core and guiding gutter in the self-adaptation variable flow shower nozzle 11. By adopting the self-adaptive variable-flow nozzle 11, the problems of uneven water distribution, filler waste, short circuit of air from a waterless area and other low-efficiency operation of the conventional nozzle when the water quantity of the cooling tower 3 is below 70 percent are solved, and the energy consumption can be further saved.
In order to reduce the resistance of cooling water flowing and avoid the pipeline blockage, the utility model discloses install full-automatic dirty appearance 12 of catching in the water tray of cooling tower 3. The full-automatic scale catcher 12 is immersed in the water pan, can regularly clean the scale in the filter screen, and solves the scaling problem of the inner walls of pipelines and equipment in the cooling water system.
In order to facilitate automatic control, the utility model discloses install the converter on cooling tower 3's fan, the number of 2 cooling water pump is 2-4 simultaneously, install the converter on cooling water pump 2. Through installing the converter additional, be convenient for through pressure sensor and temperature sensor's detected signal, control cooling tower 3's fan and cooling water pump 2's operating frequency and rotational speed, can guarantee energy-conservation and cooling effect better. Furthermore the utility model discloses still include the controller, first pressure sensor 7, first temperature sensor 8, second pressure sensor 9 and second temperature sensor 10 all are connected with the input communication of controller, the output of controller and the fan of cooling tower 3 and 2 communication connections of cooling water pump. Through setting up the controller, be convenient for handle the pressure signal and the temperature signal who gather to turn into control signal and be used for controlling the operation at the fan of cooling tower 3 and cooling water pump 2.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (8)
1. The utility model provides a high-efficient cooling water circulating system, includes cooling water set, cooling water pump and cooling tower, the delivery port of cooling water set passes through the feed pipe and links to each other with the cooling tower water inlet, the quantity of cooling tower is many and parallel connection each other, the delivery port of cooling tower passes through the wet return and is connected with the water inlet of cooling water set, the wet return is equipped with a plurality of parallel connection's cooling water pump, a serial communication port, every the hydrophone is all installed at the inlet tube top of cooling tower, install first pressure sensor and first temperature sensor on the feed pipe, first pressure sensor is used for detecting the pressure of intaking that gets into the cooling tower, first temperature sensor is used for detecting the temperature of intaking that gets into the cooling tower, install second pressure sensor and second temperature sensor on the wet return, second pressure sensor is used for detecting the pressure of going out of cooling tower, second temperature sensor is used for detecting the temperature of going out of cooling tower, the differential pressure control cooling water pump rotational speed that first pressure sensor and second pressure sensor detected, the fan frequency difference of the control cooling tower that first temperature sensor and second temperature sensor detected the temperature sensor.
2. The system of claim 1, wherein the number of the cooling towers is at least 3.
3. The high-efficiency cooling water circulation system according to claim 1, wherein the liquid level in the water equalizer is higher than the highest point of the water inlet pipe of the cooling tower.
4. The efficient cooling water circulation system according to claim 1, wherein a self-adaptive variable flow nozzle is installed in the cooling tower, and a water storage core and a diversion trench are arranged in the self-adaptive variable flow nozzle.
5. The efficient cooling water circulation system of claim 1, wherein a fully automatic scale catching instrument is installed in the water tray of the cooling tower.
6. The efficient cooling water circulation system of claim 1, wherein a frequency converter is mounted on a fan of the cooling tower.
7. The efficient cooling water circulation system according to claim 1, wherein the number of the cooling water pumps is 2-4, and a frequency converter is mounted on each cooling water pump.
8. The efficient cooling water circulation system according to claim 1, further comprising a controller, wherein the first pressure sensor, the first temperature sensor, the second pressure sensor and the second temperature sensor are all in communication connection with an input end of the controller, and an output end of the controller is in communication connection with a fan and a cooling water pump of the cooling tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202222980576.1U CN218846942U (en) | 2022-11-09 | 2022-11-09 | High-efficient cooling water circulation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222980576.1U CN218846942U (en) | 2022-11-09 | 2022-11-09 | High-efficient cooling water circulation system |
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| CN218846942U true CN218846942U (en) | 2023-04-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117053618A (en) * | 2023-10-12 | 2023-11-14 | 江苏橙智云信息技术有限公司 | Variable-frequency water chilling unit control system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117053618A (en) * | 2023-10-12 | 2023-11-14 | 江苏橙智云信息技术有限公司 | Variable-frequency water chilling unit control system and method |
| CN117053618B (en) * | 2023-10-12 | 2023-12-26 | 江苏橙智云信息技术有限公司 | Variable-frequency water chilling unit control system and method |
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