CN114413361A - Water supply mechanism for cooling tower, air conditioning system and control method - Google Patents
Water supply mechanism for cooling tower, air conditioning system and control method Download PDFInfo
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- CN114413361A CN114413361A CN202210068600.6A CN202210068600A CN114413361A CN 114413361 A CN114413361 A CN 114413361A CN 202210068600 A CN202210068600 A CN 202210068600A CN 114413361 A CN114413361 A CN 114413361A
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- water
- cooling tower
- water supply
- supply assembly
- hydraulic fan
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- 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
- F24F5/0003—Exclusively-fluid systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
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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 invention discloses a water supply mechanism for a cooling tower, the cooling tower, an air conditioning system and a control method, relates to the technical field of air conditioners, and solves the problem that a hydraulic fan of the cooling tower in the prior art drives a single water source. The water supply mechanism comprises a spray water supply assembly, a condensate water supply assembly and a chilled water supply assembly, wherein the water outlet ends of the spray water supply assembly, the condensate water supply assembly and the chilled water supply assembly are connected with the water inlet of a hydraulic fan of the cooling tower, and water is supplied to the hydraulic fan of the cooling tower through at least one group of water supply assemblies in the spray water supply assembly, the condensate water supply assembly and the chilled water supply assembly. This water supply mechanism includes three hydraulic fan drive water sources of group, and when the shower water supply assembly broke down, accessible comdenstion water supply assembly and/or refrigerated water supply assembly supplied water for the hydraulic fan of cooling tower, and drive hydraulic fan rotates to guarantee that the cooling tower can normally dispel the heat, thereby guarantee the long-term steady operation of cooling tower.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a water supply mechanism for a cooling tower, the cooling tower comprising the water supply mechanism, an air conditioning system comprising the cooling tower and a control method of the water supply mechanism.
Background
The underground environment of a mine is severe, workers work in a high-temperature high-humidity environment most of time, and the conventional air conditioning method mainly comprises the step of installing an air conditioning system at the wellhead of an air shaft so as to regulate the temperature of air sent into the underground. The cooling tower is an important part of an air conditioning system, and the cooling tower maintains the balance of cooling water quantity through supplying water continuously in a refrigeration cycle. However, the applicant has found that the existing cooling towers have at least the following drawbacks: (1) the existing cooling tower pumps cooling water stored in a cooling tower water tank to a water inlet of a hydraulic fan through a spray water pump so as to drive the hydraulic fan, the existing hydraulic fan drives a single water source, and when the spray water pump fails, the cooling tower cannot work or cannot meet customer requirements; (2) in the working process of the hydraulic fan of the existing cooling tower, the fan rotates to cause a large amount of cooling water to be blown away and lost, and in addition, the existing cooling tower generally only utilizes the sensible heat of the cooling water to exchange heat, so that the water consumption of the cooling tower is large. In the prior art, municipal water is generally used for supplementing water for the cooling tower, and water generated by an air conditioning system is not fully utilized, so that water source waste is caused, and the cost is high.
Disclosure of Invention
One of the purposes of the invention is to provide a water supply mechanism for a cooling tower and a control method thereof, which solve the technical problems that in the prior art, a hydraulic fan of the cooling tower has a single driving water source, and the cooling tower cannot work or cannot meet customer requirements when a spray water pump fails. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.
In order to achieve the purpose, the invention provides the following technical scheme:
the water supply mechanism for the cooling tower comprises a spray water supply assembly, a condensed water supply assembly and a chilled water supply assembly, wherein the water outlet ends of the spray water supply assembly, the condensed water supply assembly and the chilled water supply assembly are connected with the water inlet of a hydraulic fan of the cooling tower, and water is supplied to the hydraulic fan of the cooling tower through at least one group of water supply assembly of the spray water supply assembly, the condensed water supply assembly and the chilled water supply assembly.
According to a preferred embodiment, the water supply mechanism for the cooling tower further comprises a condensed water replenishing assembly, wherein a water inlet end of the condensed water replenishing assembly is connected with a condensed water outlet of the air-conditioning terminal device, a water outlet end of the condensed water replenishing assembly is connected with a water tank water inlet of the cooling tower, and condensed water collected by the condensed water replenishing assembly is used for replenishing water to the water tank of the cooling tower.
According to a preferred embodiment, the spray water supply assembly comprises a spray water pump and a first electromagnetic valve, wherein the spray water pump is connected with the water tank outlet of the cooling tower, the first electromagnetic valve is arranged between the water outlet end of the spray water pump and the water inlet of the hydraulic fan, the first electromagnetic valve is used for controlling the communication state of the water tank of the cooling tower and the water inlet of the hydraulic fan, and when the first electromagnetic valve is in an open state, the spray water pump is used for sending the water pump in the water tank of the cooling tower to the water inlet of the hydraulic fan.
According to a preferred embodiment, the comdenstion water supply assembly includes collection water tank, comdenstion water pump, water softener and second solenoid valve, wherein, the collection water tank is connected with the comdenstion water delivery port of air conditioner end equipment, the play water end of collection water tank warp the comdenstion water pump with water softener connects, the second solenoid valve set up in between water softener's play water end and the water conservancy fan water inlet, and the second solenoid valve is used for control the intercommunication state of water softener and water conservancy fan water inlet when the second solenoid valve is in the open mode, water softener is used for supplying water for water conservancy fan water inlet.
According to a preferred embodiment, the condensate water replenishing assembly comprises a water collecting tank, a condensate water pump, a water softening device and a third electromagnetic valve, wherein the water collecting tank is connected with a condensate water outlet of the air conditioner terminal device, a water outlet end of the water collecting tank passes through the condensate water pump and the water softening device is connected, the third electromagnetic valve is arranged between a water outlet end of the water softening device and a water tank water inlet of the cooling tower, the third electromagnetic valve is used for controlling the water softening device and a communication state of the water tank water inlet of the cooling tower, and when the third electromagnetic valve is in an open state, the water softening device is used for supplying water to the water tank of the cooling tower.
According to a preferred embodiment, the chilled water supply assembly comprises a chilled water pump and a fourth electromagnetic valve, wherein the chilled water pump is arranged between a chilled water outlet end of the cooling tower and a condenser water inlet of the refrigeration main machine, a condenser water outlet of the refrigeration main machine and a chilled water inlet of the cooling tower are communicated through a connecting pipeline, the fourth electromagnetic valve is arranged between a water outlet end of the chilled water pump and a water inlet of the hydraulic fan, the fourth electromagnetic valve is used for controlling the communication state of the chilled water outlet end of the cooling tower and the water inlet of the hydraulic fan, and when the fourth electromagnetic valve is in an open state, the chilled water outlet end of the cooling tower is used for supplying water to the condenser water inlet and the water inlet of the hydraulic fan of the refrigeration main machine; and when the fourth electromagnetic valve is in a closed state, the chilled water outlet end of the cooling tower is used for supplying water to the water inlet of the condenser of the refrigeration main machine.
According to the control method for the water supply mechanism of the cooling tower, the working state of the condensed water supply assembly and/or the chilled water supply assembly is controlled based on the working state of the spray water supply assembly, and at least one group of water supply assembly in the spray water supply assembly, the condensed water supply assembly and the chilled water supply assembly is in the working state.
According to a preferred embodiment, when the spray water supply assembly is in a working state, the second electromagnetic valve of the condensed water supply assembly and the fourth electromagnetic valve of the chilled water supply assembly are in a closed state; when the spray water supply assembly is in a shutdown state, the second electromagnetic valve of the condensed water supply assembly is in an open state, or the second electromagnetic valve of the condensed water supply assembly and the fourth electromagnetic valve of the chilled water supply assembly are both in an open state.
According to a preferred embodiment, the working state of the condensed water replenishing assembly is controlled based on the water storage parameter in the water tank of the cooling tower, and the water storage parameter in the water tank of the cooling tower is within the preset water storage parameter range.
According to a preferred embodiment, when the water level of the water stored in the water tank of the cooling tower is lower than a preset water supplementing liquid level, the third electromagnetic valve of the condensed water supplementing assembly is controlled to be in an open state, the water is supplemented to the water tank of the cooling tower by the condensed water in the water softening device, and the water level of the water stored in the water tank of the cooling tower is not lower than the preset water supplementing liquid level.
The water supply mechanism for the cooling tower and the control method thereof have the following beneficial technical effects:
the water supply mechanism for the cooling tower comprises three groups of hydraulic fans for driving a water source, and when the spray water supply assembly fails, the water supply assembly and/or the chilled water supply assembly can supply water to the hydraulic fans of the cooling tower to drive the hydraulic fans to rotate so as to ensure that the cooling tower can normally dissipate heat, thereby ensuring the long-term stable operation of the cooling tower.
According to the control method for the water supply mechanism of the cooling tower, based on the working state of the spray water supply assembly, the working state of the condensed water supply assembly and/or the chilled water supply assembly is controlled, and at least one group of water supply assemblies of the spray water supply assembly, the condensed water supply assembly and the chilled water supply assembly is in the working state.
The water supply mechanism for the cooling tower and the control method thereof solve the technical problems that in the prior art, a hydraulic fan of the cooling tower drives a single water source, and the cooling tower cannot work or cannot meet the requirements of customers when a spray water pump fails.
In addition, the preferred technical scheme of the invention can also produce the following technical effects:
according to the water supply mechanism for the cooling tower, the water inlet end of the condensed water replenishing assembly is connected with the condensed water outlet of the air conditioner terminal equipment, the water outlet end of the condensed water replenishing assembly is connected with the water inlet of the water tank of the cooling tower, and condensed water collected by the condensed water replenishing assembly is used for replenishing water for the water tank of the cooling tower.
Another object of the invention is to propose a cooling tower and an air conditioning system.
The cooling tower comprises a body and a water supply mechanism, wherein the water supply mechanism is the water supply mechanism for the cooling tower according to any technical scheme of the invention. The cooling tower comprises the water supply mechanism for the cooling tower according to any one of the technical schemes, and normal heat dissipation of the cooling tower can be guaranteed under the action of the water supply mechanism, so that long-term stable operation of the cooling tower is guaranteed.
The air conditioning system comprises the cooling tower in any technical scheme of the invention. The air conditioning system comprises the cooling tower in any technical scheme, and the cooling tower in any technical scheme can stably run for a long time, so that the long-term normal running of the air conditioning system can be guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a preferred schematic diagram of the water supply mechanism for a cooling tower of the present invention.
In the figure: 100. a cooling tower; 200. an air conditioning terminal device; 300. a refrigeration host; 101. a spray water pump; 102. a first solenoid valve; 201. a water collection tank; 202. a condensed water pump; 203. a water softening device; 204. a second solenoid valve; 205. a third electromagnetic valve; 301. a chilled water pump; 302. and a fourth solenoid valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The water supply mechanism, the cooling tower 100, the air conditioning system and the control method for the cooling tower according to the present invention will be described in detail with reference to fig. 1 and embodiments 1 to 4 of the specification.
Example 1
This embodiment will explain the water supply mechanism for a cooling tower of the present invention in detail.
The water supply mechanism for the cooling tower of the embodiment comprises a spray water supply assembly, a condensate water supply assembly and a chilled water supply assembly, wherein the water outlet ends of the spray water supply assembly, the condensate water supply assembly and the chilled water supply assembly are connected with the water inlet of a hydraulic fan of the cooling tower 100, and water is supplied to the hydraulic fan of the cooling tower 100 through at least one group of water supply assemblies in the spray water supply assembly, the condensate water supply assembly and the chilled water supply assembly, as shown in fig. 1. Preferably, the water inlet end of the spray water supply assembly is connected with the water tank outlet of the cooling tower 100, and water in the water tank of the cooling tower 100 is used for supplying water to the hydraulic fan. Preferably, the water inlet end of the condensed water supply assembly is connected with the condensed water outlet of the air-conditioning end device 200, and the collected condensed water of the air-conditioning end device 200 is used for supplying water to the hydraulic fan. Preferably, the water inlet end of the chilled water supply assembly is connected with the chilled water outlet end of the cooling tower 100, and the chilled water passing through the cooling tower 100 supplies water to the hydraulic fan.
The water supply mechanism for cooling tower of this embodiment, including three hydraulic fan drive water sources of group, when the shower water supply assembly breaks down, accessible comdenstion water supply assembly and/or refrigerated water supply assembly supply water for cooling tower 100's hydraulic fan, drive hydraulic fan rotates to guarantee that cooling tower 100 can normally dispel the heat, thereby guarantee cooling tower 100's long-term steady operation. This embodiment is used for the water supply mechanism of cooling tower promptly, and it is single to have solved among the prior art hydraulic fan drive water source of cooling tower 100, when the shower water pump breaks down, and cooling tower 100 will be unable work or can't satisfy the technical problem of customer's demand.
On the other hand, the water source of the spray water supply assembly, the condensate water supply assembly and the chilled water supply assembly of the embodiment all comes from the water produced in the operation process of the air conditioning system, the embodiment makes full use of the water produced in the operation process of the air conditioner to realize that multiple water sources supply water for the hydraulic fan, the problem that the hydraulic fan driving water source of the existing cooling tower 100 is single is solved, and the advantages of saving water resources and being low in cost are further achieved.
According to a preferred embodiment, the water supply mechanism for the cooling tower further comprises a condensed water replenishing assembly, wherein a water inlet end of the condensed water replenishing assembly is connected with a condensed water outlet of the air-conditioning terminal device 200, a water outlet end of the condensed water replenishing assembly is connected with a water tank inlet of the cooling tower 100, and condensed water collected by the condensed water replenishing assembly is used for replenishing the water tank of the cooling tower 100, as shown in fig. 1. The water supply mechanism that this embodiment is preferred technical scheme is used for the cooling tower is the water tank moisturizing of cooling tower 100 through the comdenstion water that utilizes air conditioning system to produce, but the comdenstion water that makes full use of air conditioning system produced has not only solved the big problem of cooling tower 100 water consumption, has still solved among the prior art through municipal water for the moisturizing of cooling tower 100, causes the water source extravagant, problem with higher costs.
According to a preferred embodiment, the spray water supply assembly includes a spray water pump 101 and a first solenoid valve 102, as shown in FIG. 1. Preferably, the spray water pump 101 is connected to the water tank outlet of the cooling tower 100, the first electromagnetic valve 102 is disposed between the water outlet of the spray water pump 101 and the water inlet of the hydraulic fan, and the first electromagnetic valve 102 is used to control the communication state between the water tank of the cooling tower 100 and the water inlet of the hydraulic fan, and when the first electromagnetic valve 102 is in the open state, the spray water pump 101 is used to pump the water in the water tank of the cooling tower 100 to the water inlet of the hydraulic fan, as shown in fig. 1. Specifically, when the spray water supply assembly supplies water to the hydraulic fan of the cooling tower 100, the first electromagnetic valve 102 is in an open state, so that water flowing out of the water tank outlet of the cooling tower 100 is pumped to the first electromagnetic valve 102 under the action of the spray water pump 101 and enters the hydraulic fan inlet through the first electromagnetic valve 102, as shown in fig. 1. The cooling water entering the water inlet of the hydraulic fan flows out from the water outlet of the hydraulic fan, and then returns to the water tank of the cooling tower 100 from the water tank water inlet of the cooling tower 100 after passing through the spraying device, the heat exchanger and the filler in sequence. When the shower water pump 101 fails, the first electromagnetic valve 102 is closed.
The flow path from the water tank outlet of the cooling tower 100 to the spray water pump 101, then to the first electromagnetic valve 102, then to the water inlet of the hydraulic fan, then to the water outlet of the hydraulic fan, then to the spray device, then to the heat exchanger, then to the filler, and then to the water tank of the cooling tower 100 is the spray water flow path. Normally, the water supply assembly of the spray water is used to supply water to the hydraulic fan of the cooling tower 100, and the water path circulation of the cooling tower 100 is performed according to the spray water flow path.
According to a preferred embodiment, the condensate water supply assembly includes a collection tank 201, a condensate water pump 202, a water softener 203, and a second solenoid valve 204, as shown in fig. 1. Preferably, the collecting water tank 201 is connected to a condensed water outlet of the air conditioning end device 200, an outlet end of the collecting water tank 201 is connected to the water softening device 203 through the condensed water pump 202, the second electromagnetic valve 204 is disposed between the outlet end of the water softening device 203 and a water inlet of the hydraulic fan, and the second electromagnetic valve 204 is used for controlling a communication state between the water softening device 203 and the water inlet of the hydraulic fan, and when the second electromagnetic valve 204 is in an open state, the water softening device 203 is used for supplying water to the water inlet of the hydraulic fan, as shown in fig. 1. Specifically, when the condensed water supply assembly is required to supply water to the hydraulic fan of the cooling tower 100, the second electromagnetic valve 204 is in an open state, so that the collected condensed water of the air conditioning terminal device 200 can enter the water softener 203 through the condensed water pump 202, and enter the water inlet of the hydraulic fan through the second electromagnetic valve 204 after being processed by the water softener 203, as shown in fig. 1. The condensed water entering the water inlet of the hydraulic fan flows out from the water outlet of the hydraulic fan, and then returns to the water tank of the cooling tower 100 from the water tank water inlet of the cooling tower 100 after passing through the spraying device, the heat exchanger and the filler in sequence. When the condensed water supply assembly is not needed to supply water to the hydraulic fan of the cooling tower 100, the second electromagnetic valve 204 is in a closed state. The condensed water supply assembly of the preferred technical scheme of the embodiment comprises a water softening device 203, and impurities in the condensed water can be effectively removed through the action of the water softening device 203, so that the condensed water can meet the water quality requirement of water supply of the cooling tower 100. Specifically, the water softening device 203 may be a structure of the related art.
The flow path from the condensed water outlet of the air-conditioning terminal equipment 200 to the water collection tank 201, then to the condensed water pump 202, then to the water softening device 203, then to the second electromagnetic valve 204, then to the water inlet of the hydraulic fan, then to the water outlet of the hydraulic fan, then to the spraying device, then to the heat exchanger, then to the filler, and then to the water tank of the cooling tower 100 is the first flow path of the condensed water of the air-conditioning terminal equipment 200, and is used for supplying water to the hydraulic fan of the cooling tower 100 when the spray water supply assembly fails, so as to ensure the normal rotation of the hydraulic fan.
According to a preferred embodiment, the condensate refill assembly comprises a sump 201, a condensate pump 202, a water softener 203 and a third solenoid valve 205, as shown in fig. 1. Preferably, the collecting water tank 201 is connected to a condensed water outlet of the air conditioning end unit 200, an outlet end of the collecting water tank 201 is connected to the water softening device 203 through the condensed water pump 202, the third electromagnetic valve 205 is disposed between the outlet end of the water softening device 203 and a water tank inlet of the cooling tower 100, the third electromagnetic valve 205 is used for controlling a communication state of the water softening device 203 and the water tank inlet of the cooling tower 100, and when the third electromagnetic valve 205 is in an open state, the water softening device 203 is used for supplying water to the water tank of the cooling tower 100, as shown in fig. 1. When the condensed water replenishing assembly is required to replenish the water tank of the cooling tower 100, the third electromagnetic valve 205 is in an open state, so that the collected condensed water of the air conditioning terminal device 200 can enter the water softening device 203 through the condensed water pump 202, and enter the water tank of the cooling tower 100 through the third electromagnetic valve 205 after being treated by the water softening device 203, so as to replenish the water tank of the cooling tower 100, as shown in fig. 1.
The flow path from the condensed water outlet of the air-conditioning terminal equipment 200 to the water collection tank 201, then to the condensed water pump 202, then to the water softening device 203, then to the third electromagnetic valve 205, and then to the water tank of the cooling tower 100 is a second flow path of the condensed water of the air-conditioning terminal equipment 200, and is used for supplementing water to the water tank when the water tank of the cooling tower 100 needs to be supplemented with water, so as to ensure the normal operation of the cooling tower 100.
Preferably, the first flow path and the second flow path of the condensed water of the air-conditioning end device 200 operate the first flow path preferentially, so as to ensure the normal rotation of the hydraulic fan. I.e., to drive the hydro-fan in rotation prior to replenishing the water tank of the cooling tower 100.
According to a preferred embodiment, the chilled water supply assembly includes a chilled water pump 301 and a fourth solenoid valve 302, as shown in fig. 1. Preferably, the chilled water pump 301 is disposed between the chilled water outlet end of the cooling tower 100 and the condenser water inlet of the refrigeration main unit 300, and the condenser water outlet of the refrigeration main unit 300 is communicated with the chilled water inlet of the cooling tower 100 through a connecting pipeline, as shown in fig. 1. Preferably, the fourth electromagnetic valve 302 is disposed between the water outlet end of the chilled water pump 301 and the water inlet of the hydraulic fan, as shown in fig. 1. The fourth electromagnetic valve 302 is used for controlling the communication state between the chilled water outlet end of the cooling tower 100 and the water inlet of the hydraulic fan, and when the fourth electromagnetic valve 302 is in an open state, the chilled water outlet end of the cooling tower 100 is used for supplying water to the water inlet of the condenser and the water inlet of the hydraulic fan of the refrigeration main machine 300; when the fourth solenoid valve 302 is in the closed state, the outlet end of the chilled water of the cooling tower 100 is used to supply water to the inlet of the condenser of the refrigeration main unit 300. Specifically, the water flowing out from the outlet end of the chilled water of the cooling tower 100 can enter the water inlet of the condenser of the refrigeration main unit 300 through the chilled water pump 301, and after heat exchange at the condenser, the water flows out from the outlet of the condenser of the refrigeration main unit 300 and flows into the inlet end of the chilled water of the cooling tower 100 through the connecting pipeline, as shown in fig. 1. When the chilled water supply assembly is required to supply water to the hydraulic fan of the cooling tower 100, the fourth electromagnetic valve 302 is in an open state, and water flowing out of the chilled water outlet end of the cooling tower 100 can also run according to the following flow paths: the chilled water flowing out from the outlet end of the chilled water of the cooling tower 100 flows into the fourth solenoid valve 302 after passing through the chilled water pump 301, and enters the inlet of the hydraulic fan through the fourth solenoid valve 302, as shown in fig. 1. The chilled water entering the water inlet of the hydraulic fan flows out from the water outlet of the hydraulic fan, and then returns to the water tank of the cooling tower 100 from the water tank water inlet of the cooling tower 100 after sequentially passing through the spraying device, the heat exchanger and the filler.
Referring to fig. 1 again, when the fourth solenoid valve 302 is in an open state, the water flowing out from the chilled water outlet end of the cooling tower 100 has two flow paths, namely, a flow path from the chilled water outlet end of the cooling tower 100 to the chilled water pump 301, then to the condenser water inlet of the refrigeration main unit 300, then to the condenser water outlet of the refrigeration main unit 300, and then to the chilled water inlet end of the cooling tower 100, which is a main flow path of chilled water, and is used for ensuring normal operation of a heat exchange process. And the other flow path is a flow path from the chilled water outlet end of the cooling tower 100 to the chilled water pump 301, then to the fourth electromagnetic valve 302, then to the water inlet of the hydraulic fan, then to the water outlet of the hydraulic fan, then to the spray device, then to the heat exchanger, then to the filler, and then to the water tank of the cooling tower 100, and is an auxiliary flow path of chilled water, and is used for starting when the spray water supply assembly fails or the spray water supply assembly fails and the amount of condensed water in the condensed water supply assembly is insufficient, and is used as an emergency water supply assembly of the hydraulic fan of the cooling tower 100. That is, when the fourth solenoid valve 302 is in the open state, the main flow path and the auxiliary flow path run simultaneously when the water flows out from the outlet end of the chilled water in the cooling tower 100; when the fourth solenoid valve 302 is in the closed state, only the main flow path is operated by the water flowing out from the chilled water outlet end of the cooling tower 100.
When the spray water supply assembly or the condensed water supply assembly supplies water to the hydraulic fan of the cooling tower 100, the main flow path of the chilled water supply assembly operates to ensure the normal operation of the heat exchange process; when the chilled water supply assembly is required to supply water to the hydraulic fan of the cooling tower 100, the main flow path and the auxiliary flow path of the chilled water supply assembly operate simultaneously, so that normal rotation of the hydraulic fan can be ensured, and normal operation of a heat exchange process can also be ensured.
Example 2
This embodiment describes in detail a control method of a water supply mechanism for a cooling tower according to the present invention.
In the method for controlling a water supply mechanism of a cooling tower according to any one of embodiments 1, the operating state of the condensate water supply assembly and/or the chilled water supply assembly is controlled based on the operating state of the spray water supply assembly, and at least one group of water supply assemblies among the spray water supply assembly, the condensate water supply assembly, and the chilled water supply assembly is set to be in the operating state.
In the method for controlling the water supply mechanism of the cooling tower according to any one of the embodiments 1, the operating states of the condensed water supply assembly and/or the chilled water supply assembly are controlled based on the operating states of the shower water supply assembly, so that at least one group of water supply assemblies is in the operating state, and the normal heat dissipation of the cooling tower 100 can be ensured, thereby ensuring the long-term stable operation of the cooling tower 100. That is, the control method for the water supply mechanism of the cooling tower in the embodiment solves the technical problems that the driving water source of the hydraulic fan of the cooling tower 100 is single, and the cooling tower 100 cannot work or cannot meet the customer requirements when the spray water pump fails in the prior art.
According to a preferred embodiment, the second solenoid valve 204 of the condensate water supply assembly and the fourth solenoid valve 302 of the chilled water supply assembly are in a closed state when the shower water supply assembly is in an operating state. When the shower water supply assembly is in a shutdown state, the second solenoid valve 204 of the condensed water supply assembly is in an open state, or both the second solenoid valve 204 of the condensed water supply assembly and the fourth solenoid valve 302 of the chilled water supply assembly are in an open state. That is, in the control method according to the preferred embodiment of the present invention, when the shower water supply assembly is in the normal state, the shower water supply assembly is preferentially used to supply water to the hydraulic fan of the cooling tower 100. When the spray water supply assembly fails, such as the spray water pump 101, the condensate water supply assembly is used to supply water to the hydraulic fan of the cooling tower 100. Or, when the spray water supply assembly fails and the amount of condensed water of the condensed water supply assembly is insufficient, the condensed water supply assembly and the chilled water supply assembly can be used for supplying water to the hydraulic fan of the cooling tower 100, so as to ensure the normal operation of the cooling tower 100. The priority that this embodiment prefers technical scheme control water supply assembly promptly is spray water supply assembly in proper order and is higher than the comdenstion water supply assembly, and the comdenstion water supply assembly is higher than the refrigerated water supply assembly. Namely, the most prior water supply assembly of the chilled water supply assembly is started at the last time and used as an emergency water supply assembly.
According to a preferred embodiment, the operating state of the condensate replenishing assembly is controlled based on the water storage parameter in the water tank of the cooling tower 100, and the water storage parameter in the water tank of the cooling tower 100 is within a preset water storage parameter range. The parameters of the stored water in the water tank include one or more of the parameters of the water level of the stored water, the water temperature of the stored water, the water quality of the stored water, and the like. Preferably, the parameter of the water stored in the water tank is the height of the water level of the water stored in the water tank. More preferably, when the water level in the water tank of the cooling tower 100 is lower than the preset water replenishing level, the third solenoid valve 205 controlling the condensed water replenishing assembly is in an open state, the water tank of the cooling tower 100 is replenished with the condensed water in the water softening device 203, and the water level in the water tank of the cooling tower 100 is not lower than the preset water replenishing level. According to the control method of the preferred technical scheme of the embodiment, when the water storage liquid level in the water tank of the cooling tower 100 is lower than the preset water supplementing liquid level, the third electromagnetic valve 205 of the condensed water supplementing assembly is controlled to be in an open state, so that the condensed water in the water softening device 203 is used for supplying water to the water tank of the cooling tower 100, the condensed water generated by an air conditioning system can be fully utilized, the problem of high water consumption of the cooling tower 100 is solved, and the problems of water source waste and high cost caused by supplementing water to the cooling tower 100 through municipal water in the prior art are solved.
Example 3
This example describes the cooling tower of the present invention in detail.
The cooling tower 100 of the present embodiment includes a body and a water supply mechanism, as shown in fig. 1. Preferably, the water supply mechanism is the water supply mechanism for the cooling tower according to any one of the embodiments 1. More preferably, the water supply mode of the water supply mechanism for the cooling tower is controlled by the control method according to any one of the embodiments 2. The structure of the body can be the same as the prior art, and is not described in detail herein.
The cooling tower 100 of this embodiment includes the water supply mechanism for the cooling tower according to any one of the technical solutions in embodiment 1, and can ensure normal heat dissipation of the cooling tower 100 by the water supply mechanism, thereby ensuring long-term stable operation of the cooling tower 100.
Example 4
This embodiment will explain the air conditioning system of the present invention in detail.
The air conditioning system of the present embodiment includes the cooling tower 100 according to any one of embodiments 3. The air conditioning system of the present embodiment is preferably an air conditioning system for a mine. The rest of the structure of the air conditioning system of this embodiment can be the same as the prior art, and is not described herein again.
The air conditioning system of the present embodiment includes the cooling tower 100 according to any one of embodiments 3, and the cooling tower 100 according to any one of embodiments 3 can stably operate for a long time, so that the long-term normal operation of the air conditioning system can be ensured.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (12)
1. The utility model provides a water supply mechanism for cooling tower, its characterized in that includes spray water supply assembly, comdenstion water supply assembly and refrigerated water supply assembly, spray water supply assembly the comdenstion water supply assembly with the play water end of refrigerated water supply assembly is connected with the hydraulic fan water inlet of cooling tower (100), and passes through spray water supply assembly the comdenstion water supply assembly with at least a set of water supply assembly in the refrigerated water supply assembly is right the hydraulic fan of cooling tower (100) supplies water.
2. The water supply mechanism for the cooling tower is characterized by further comprising a condensed water replenishing assembly, wherein the water inlet end of the condensed water replenishing assembly is connected with a condensed water outlet of an air-conditioning terminal device (200), the water outlet end of the condensed water replenishing assembly is connected with a water tank inlet of the cooling tower (100), and condensed water collected by the condensed water replenishing assembly is used for replenishing the water tank of the cooling tower (100).
3. The water supply mechanism for the cooling tower according to claim 1 or 2, wherein the spray water supply assembly comprises a spray water pump (101) and a first solenoid valve (102), wherein the spray water pump (101) is connected with a tank outlet of the cooling tower (100), the first solenoid valve (102) is arranged between an outlet end of the spray water pump (101) and a water inlet of a hydraulic fan, and
the first electromagnetic valve (102) is used for controlling the communication state of a water tank of the cooling tower (100) and a water inlet of a hydraulic fan, and when the first electromagnetic valve (102) is in an open state, the spray water pump (101) is used for pumping water in the water tank of the cooling tower (100) to the water inlet of the hydraulic fan.
4. The water supply mechanism for the cooling tower according to claim 1 or 2, wherein the condensed water supply assembly comprises a collecting tank (201), a condensed water pump (202), a water softening device (203) and a second electromagnetic valve (204), wherein the collecting tank (201) is connected with a condensed water outlet of an air conditioning end device (200), an outlet end of the collecting tank (201) is connected with the water softening device (203) through the condensed water pump (202), the second electromagnetic valve (204) is arranged between the outlet end of the water softening device (203) and a water inlet of a hydraulic fan, and the second electromagnetic valve (204) is arranged between the outlet end of the water softening device (203) and the water inlet of the hydraulic fan
The second solenoid valve (204) is used for controlling the communicating state of the water softening device (203) and the water inlet of the hydraulic fan, and when the second solenoid valve (204) is in an opening state, the water softening device (203) is used for supplying water to the water inlet of the hydraulic fan.
5. The water supply mechanism for the cooling tower according to claim 2, wherein the condensate water replenishing assembly comprises a water collecting tank (201), a condensate water pump (202), a water softening device (203) and a third electromagnetic valve (205), wherein the water collecting tank (201) is connected with a condensate water outlet of an air conditioning end device (200), a water outlet end of the water collecting tank (201) is connected with the water softening device (203) through the condensate water pump (202), the third electromagnetic valve (205) is arranged between the water outlet end of the water softening device (203) and a water tank water inlet of the cooling tower (100), and
the third solenoid valve (205) is used for controlling the communicating state of the water softening device (203) and the water tank water inlet of the cooling tower (100), and when the third solenoid valve (205) is in an opening state, the water softening device (203) is used for supplying water to the water tank of the cooling tower (100).
6. The water supply mechanism for a cooling tower according to claim 1 or 2, wherein the chilled water supply assembly comprises a chilled water pump (301) and a fourth solenoid valve (302), wherein,
the chilled water pump (301) is arranged between the chilled water outlet end of the cooling tower (100) and the condenser water inlet of the refrigeration main machine (300), the condenser water outlet of the refrigeration main machine (300) is communicated with the chilled water inlet of the cooling tower (100) through a connecting pipeline, the fourth electromagnetic valve (302) is arranged between the water outlet end of the chilled water pump (301) and the water inlet of the hydraulic fan, and
the fourth electromagnetic valve (302) is used for controlling the communication state of the chilled water outlet end of the cooling tower (100) and the water inlet of the hydraulic fan, and when the fourth electromagnetic valve (302) is in an open state, the chilled water outlet end of the cooling tower (100) is used for supplying water to the water inlet of the condenser and the water inlet of the hydraulic fan of the refrigeration host (300); when the fourth electromagnetic valve (302) is in a closed state, the chilled water outlet end of the cooling tower (100) is used for supplying water to the condenser water inlet of the refrigeration main machine (300).
7. A cooling tower comprising a body and a water supply, wherein the water supply is as claimed in any one of claims 1 to 6.
8. An air conditioning system comprising the cooling tower of claim 7.
9. A control method for a water supply mechanism of a cooling tower according to any one of claims 1 to 6, characterized in that the operating state of a condensate water supply assembly and/or a chilled water supply assembly is controlled based on the operating state of a spray water supply assembly, and at least one of the spray water supply assembly, the condensate water supply assembly and the chilled water supply assembly is made to be in the operating state.
10. The control method according to claim 9, wherein when the shower water supply assembly is in the operating state, the second solenoid valve (204) of the condensed water supply assembly and the fourth solenoid valve (302) of the chilled water supply assembly are in the closed state;
when the spray water supply assembly is in a shutdown state, the second electromagnetic valve (204) of the condensed water supply assembly is in an open state, or the second electromagnetic valve (204) of the condensed water supply assembly and the fourth electromagnetic valve (302) of the chilled water supply assembly are both in an open state.
11. The control method according to claim 9 or 10, characterized in that the operating state of the condensed water replenishing assembly is controlled based on the water storage parameter in the water tank of the cooling tower (100) and the water storage parameter in the water tank of the cooling tower (100) is within a preset water storage parameter range.
12. The control method according to claim 11, characterized in that when the water level in the water tank of the cooling tower (100) is lower than a preset water replenishing level, the third solenoid valve (205) of the condensed water replenishing assembly is controlled to be in an open state, the water tank of the cooling tower (100) is replenished with condensed water in the water softening device (203) and the water level in the water tank of the cooling tower (100) is made to be not lower than the preset water replenishing level.
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| CN202210068600.6A CN114413361B (en) | 2022-01-20 | 2022-01-20 | Water supply mechanism for cooling tower, air conditioning system and control method |
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Address after: 467000 No. 21 miner Road, Henan, Pingdingshan Applicant after: PINGDINGSHAN TIANAN COAL MINING Co.,Ltd. Applicant after: China Pingmei Shenma Holding Group Co.,Ltd. Applicant after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: 467000 No. 21 miner Road, Henan, Pingdingshan Applicant before: PINGDINGSHAN TIANAN COAL MINING Co.,Ltd. Applicant before: CHINA PINGMEI SHENMA ENERGY CHEMICAL GROUP Co.,Ltd. Applicant before: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI |
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