CN106839802A - Heat recovery system and heat recovery method - Google Patents
Heat recovery system and heat recovery method Download PDFInfo
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- CN106839802A CN106839802A CN201710003524.XA CN201710003524A CN106839802A CN 106839802 A CN106839802 A CN 106839802A CN 201710003524 A CN201710003524 A CN 201710003524A CN 106839802 A CN106839802 A CN 106839802A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
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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
- F28F25/06—Spray nozzles or spray pipes
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C2001/006—Systems comprising cooling towers, e.g. for recooling a cooling medium
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides a kind of heat recovery system and heat recovery method, wherein heat recovery system includes：Heat absorption section, recuperation of heat main frame and end heat supply section；The heat absorption section is arranged in cooling tower, heat exchange is carried out for the cooling water by refrigerant and cooling tower, to absorb the heat of cooling water；The recuperation of heat main frame, for controlling heat to be transferred to the end heat supply section from heat absorption section, and controls the transmission capacity of heat according to default control strategy；The end heat supply section, hot junction system is used for heat to be supplied to.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a heat exchange system, in particular to a heat recovery system and a heat recovery method for an air conditioning system of a data center.
[ background of the invention ]
With the widespread application of information technology, data centers are used as basic platforms for data storage and calculation, and have been rapidly developed in recent years, and the construction scale and the number of the data centers are continuously expanded. Because the uninterrupted operation of the data center server can generate a large amount of heat, uninterrupted cooling needs to be supplied to the data center machine room all the year around, and the refrigerating system can continuously perform refrigerating operation all the year around. The refrigeration system has a significant proportion of the total power consumption of a data center, typically 20% to 30%, and even higher. Most super large-scale data centers (the total power consumption is more than 10 MW) generally adopt a huge air-conditioning water system to cool a terminal server room, and the huge heat generated by the cooling is finally discharged into the atmosphere through a cooling tower, so that precious heat energy resources are wasted, and heat pollution is caused to the environment.
[ summary of the invention ]
In view of the above, the present invention provides a heat recovery system and a heat recovery method, so as to save heat energy resources and reduce heat pollution to the environment.
The specific technical scheme is as follows:
the present invention provides a heat recovery system comprising: the heat absorption section, the heat recovery main machine and the tail end heat supply section;
the heat absorption section is arranged in the cooling tower and used for exchanging heat with cooling water of the cooling tower through a refrigerant so as to absorb the heat of the cooling water;
the heat recovery host is used for controlling heat to be transferred from the heat absorption section to the tail end heat supply section and controlling the heat transfer quantity according to a preset control strategy;
the terminal heat supply section is used for supplying heat to the hot end system.
According to a preferred embodiment of the present invention, the heat absorbing section comprises: a first heat exchange unit;
the first heat exchange unit is arranged below a spray pipe of the cooling tower, so that hot water of the spray pipe is sprayed to the first heat exchange unit and exchanges heat with a refrigerant in the first heat exchange unit.
According to a preferred embodiment of the present invention, the first heat exchange unit is installed in a space reserved between the shower pipe and the packing in the cooling tower.
According to a preferred embodiment of the present invention, the first heat exchange unit includes:
an evaporating coil; or,
the evaporator coil and a temperature sensor on the evaporator coil.
According to a preferred embodiment of the present invention, the heat recovery main unit comprises a compressor, a throttle valve and a second heat exchange unit;
the compressor is used for driving a refrigerant to circularly flow between the heat absorption section and the heat recovery main machine;
the throttle valve is used for controlling the flow of the refrigerant;
a controller for controlling the compressor and the throttle valve;
the second heat exchange unit is used for exchanging the heat of the refrigerant with a heat end using medium, and the heat absorbing heat end using medium is provided for a heat end using system by the tail end heat supply section.
According to a preferred embodiment of the invention, the terminal heating section comprises: a temperature sensor, an electric valve and a water pump;
the temperature sensor is used for collecting the heat utilization temperature of the heat utilization end system;
the water pump is used for conveying the hot water to a hot end using system;
the controller is further used for determining whether to open or adjust the electric valve according to the temperature acquired by the temperature sensor so that the heat-absorbed hot end medium is conveyed to a hot end system.
According to a preferred embodiment of the present invention, the controller is further configured to control an operation state of the compressor according to an operation state of the cooling tower; or, the compressor and the throttle valve are controlled according to the temperature of the refrigerant.
According to a preferred embodiment of the present invention, the hot end system comprises: heating system or domestic hot water system.
The invention also provides a heat recovery method, which comprises the following steps:
the heat exchange is carried out between the refrigerant and the cooling water of the cooling tower so as to absorb the heat of the cooling water;
and transferring the heat to a hot end system, and controlling the transfer quantity of the heat according to a preset control strategy.
According to a preferred embodiment of the present invention, the absorbing heat of the cooling water by heat exchange between the cooling water of the cooling tower and the refrigerant includes:
the hot water of the spray pipe is sprayed to the first heat exchange unit and exchanges heat with the refrigerant in the first heat exchange unit.
According to a preferred embodiment of the present invention, the first heat exchange unit is installed in a space reserved between the shower pipe and the packing in the cooling tower.
According to a preferred embodiment of the present invention, the first heat exchange unit includes an evaporation coil and a temperature sensor on the evaporation coil, the refrigerant flows through the evaporation coil, and the temperature sensor collects a temperature of the refrigerant.
According to a preferred embodiment of the present invention, transferring the heat to a hot end system comprises:
the refrigerant is driven to circularly flow by the compressor, and the flow of the refrigerant is controlled by the throttle valve; wherein the compressor and the throttle valve are controlled by a controller;
and exchanging the heat of the refrigerant with the hot end medium, and providing the hot end medium subjected to heat absorption for a hot end system.
According to a preferred embodiment of the present invention, transferring the heat to the hot end system further comprises:
the controller acquires the heat utilization temperature of the heat utilization end system acquired by the temperature sensor;
and determining whether to open or adjust an electric valve according to the temperature acquired by the temperature sensor so that the water pump can convey the heat-absorbed heat end using medium to the heat end using system.
According to a preferred embodiment of the present invention, controlling the amount of heat transferred according to a preset control strategy comprises:
the controller determines whether to control the compressor to drive the refrigerant to circularly flow or not according to the heat utilization temperature acquired by the temperature sensor arranged on the heat utilization end system; or,
the controller determines whether to control the compressor to drive the refrigerant to circularly flow or not according to the temperature of the refrigerant; or,
the controller controls the throttle valve to adjust the flow rate of the refrigerant according to the temperature of the refrigerant; or,
and the controller controls the running state of the compressor according to the running state of the cooling tower.
According to a preferred embodiment of the present invention, the hot end system comprises: heating system or domestic hot water system.
According to the technical scheme, the heat is absorbed from the cooling water of the cooling tower and provided for the hot end system for use, so that the heat discharged to the atmosphere is reduced, and the heat pollution to the environment is reduced; on the other hand, the heat of the cooling water in the cooling tower is effectively utilized, and the heat energy resource is saved.
[ description of the drawings ]
FIG. 1 is a schematic diagram of the heat recovery system according to an embodiment of the present invention;
FIG. 2 is a diagram of an example of a heat recovery system according to an embodiment of the present invention;
fig. 3 is a diagram of an example of an evaporating coil provided in an embodiment of the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
The heat recovery system provided by the invention is shown in figure 1 and mainly comprises three parts: the heat absorption section, the heat recovery main machine and the tail end heat supply section.
The heat absorption section is arranged in a cooling tower of the data center air conditioning system and is responsible for exchanging heat with cooling water of the cooling tower through a refrigerant so as to absorb heat of the cooling water. The heat absorption section is mainly composed of a first heat exchange unit which can be arranged below a spray pipe of the cooling tower, so that hot water of the spray pipe is sprayed to the first heat exchange unit, the hot water sprayed by the spray pipe is subjected to heat exchange with a refrigerant in the first heat exchange unit, the hot water in the cooling tower is cooled, and the refrigerant of the first heat exchange unit absorbs heat to heat. Details will be described in the following examples.
The heat recovery host is responsible for controlling the heat transfer from the heat absorption section to the end heat supply section. Specifically, the heat recovery main unit mainly includes a compressor, a throttle valve, a controller, and a second heat exchange unit.
The compressor is used for driving the refrigerant and the heat recovery main machine to circularly flow. The throttle valve is responsible for controlling the flow rate of the refrigerant, namely the flow speed. The controller is responsible for controlling the compressor and throttle. Besides the controller can control the running and stopping of the compressor, the compressor can adopt an inverter compressor, and the controller can also control the working frequency of the compressor.
Wherein the controller controls the operation state of the compressor for operation and stop mainly according to the operation state of the cooling tower, for example, the operation of the cooling tower, and controls the operation of the compressor, and if the cooling tower is stopped, the compressor is stopped. The controller controls the working frequency of the compressor mainly according to the temperature of the refrigerant and/or the requirement of a hot end system, for example, if the temperature of the refrigerant is too high, the working frequency of the compressor is reduced, and if the temperature of the refrigerant is too low, the working frequency of the compressor is increased. For another example, if the heat demand of the hot-side system is increased, the operating frequency of the compressor is increased, and if the heat demand of the hot-side system is decreased, the operating frequency of the compressor is decreased, which will be described later. Of course, the controller may also control the operation and shutdown of the compressor based on the demand of the hot-end system, for example, the compressor may be shutdown if the hot-end system is currently in a non-useful heat demand.
For the control of the throttle valve, the controller is mainly based on the temperature of the refrigerant. For example, if the temperature of the refrigerant is too high, the throttle valve is adjusted to reduce the flow rate of the refrigerant; if the temperature of the refrigerant is too low, the throttle valve is adjusted to improve the flow rate of the refrigerant.
The second heat exchange unit is responsible for exchanging the heat of the refrigerant with the heat-using end medium, and the heat-absorbed heat-using end medium is provided for the heat-using end system by the tail end heat supply section.
Wherein the second exchange unit may employ, for example, a plate heat exchanger, a shell and tube heat exchanger, or the like.
The end heat supply section is responsible for supplying heat to the hot end system, namely supplying the hot water obtained by the second heat exchange unit to the hot end system. Specifically, the terminal heat supply section may mainly include a temperature sensor, an electric valve, and a water pump.
The hot end using medium can be different medium types according to the types of the hot end using systems, for example, for a domestic hot water system, the hot end using medium can be water, and hot water after heat absorption is used for the domestic hot water system. For example, in the case of a heating system, the medium at the hot end can be water, glycol solution or other medium with high heat exchange efficiency and good anti-freezing effect, and the hot water or glycol solution obtained after absorbing heat is provided for the heating system.
The temperature sensor is arranged in the hot end system and is mainly responsible for collecting the hot temperature of the hot end system. The location of the temperature sensor may be set depending on the particular hot end system being used. For example, for a domestic hot water system, the temperature sensor may be disposed in the hot water storage tank for collecting the temperature of water in the hot water storage tank.
The water pump is responsible for conveying hot water to the hot end system, and in the embodiment of the invention, the heat recovery host machine can adopt a water loop heat pump unit, and a variable-frequency compressor and a water pump are arranged in the heat recovery host machine. The electric valve is a valve on the hot water conveying pipeline and is used for controlling whether hot water is conveyed to the hot end using system and the flow of the hot water. The controller can determine whether to open or adjust the electric valve according to the temperature of the temperature sensor, and hot water is conveyed to the hot end system after the electric valve is opened.
The end heat supply section can supply heat to one hot end system or simultaneously supply heat to a plurality of hot end systems. The heat recovery system provided by the invention is realized by taking the heat recovery system for providing recovered heat to the domestic hot water system and the heat supply system as an example.
Fig. 2 is an example of a heat recovery system according to an embodiment of the present invention, and the evaporation coil 6 in fig. 2 is integrated in the cooling tower 1, below the shower pipe 4 and above the cooling tower packing 5. In the embodiment of the invention, the space reserved between the spray pipe 4 and the filler 5 in the cooling tower can be utilized for installing the evaporation coil 6 and subsequently overhauling the evaporation coil 6. The evaporating coil 6 can be installed in a modularized mode, and is convenient to disassemble and assemble. Hot water generated by the data center air conditioning system enters the cooling tower from the inlet 3, passes through the spraying pipe 4 and is sprayed to the evaporation coil 6 by the spraying pipe 4, and a refrigerant in the evaporation coil 6 exchanges heat with the hot water to absorb heat of the hot water and cool the hot water. The hot water is further cooled by the fan through the cooling tower packing 5 and is discharged out of the cooling tower from the cooling tower outlet 2. On the other hand, the refrigerant circulates by being driven by the compressor 7. The operating state and the operating frequency of the compressor 7 are controlled by the controller 0. In addition, the evaporation coil 6 is further provided with a temperature sensor 21, and the temperature sensor 21 is used for collecting the temperature of the refrigerant and sending the temperature information to the controller 0. The controller 0 can control the operating state and the operating frequency of the compressor 7 according to the temperature of the refrigerant. In addition, the controller 0 can control the throttle 20 according to the temperature of the refrigerant to control the refrigerant flow rate. Wherein the connection between the controller 0 and the throttle valve 20 is not shown in fig. 2. For example, if the temperature of the refrigerant is lower than the preset first temperature threshold, the controller 0 may control the compressor and/or adjust the throttle 20 to increase the refrigerant flow rate, so as to extract more heat. If the temperature of the refrigerant is higher than the preset second temperature threshold, the controller 0 may control the compressor and/or adjust the throttle 20 to decrease the flow rate of the refrigerant, thereby preventing the temperature of the refrigerant from being too high. Wherein the first temperature threshold is less than the second temperature threshold.
The evaporating coil 6 can be in the shape as shown in fig. 3 (fig. 3 can be regarded as a top view of the evaporating coil 6 shown in fig. 2), fins can be covered on the evaporating coil 6, the fins are used for increasing the heat exchange area of the evaporating coil, so that sprayed hot water can contact the evaporating coil in a larger area, and the hot water can exchange heat with a refrigerant in the evaporating coil more sufficiently. Of course, other approaches may be used in addition to that shown in FIG. 3.
The refrigerant passes through two heat exchangers, i.e., a heat exchanger 18 and a heat exchanger 19. Wherein the heat exchanger 18 is used for providing heat to the heating system and the heat exchanger 19 is used for providing heat to the domestic hot water.
The reference numeral 8 denotes a heating system, and hot water used in the heating system circulates between 8 and the heat exchanger 18, and the heating system consumes substantially no water. The hot water exchanges heat with the refrigerant by the heat exchanger 18, absorbs heat from the refrigerant, and cools the refrigerant. The cooled refrigerant flows back to the cooling tower 1 to absorb heat. The temperature sensor 9 collects the heat consumption temperature of the heating system and provides the heat consumption temperature to the controller 0, and the controller 0 can control the electric valve 11 according to the heat consumption temperature. For example, if the temperature is lower than the preset temperature threshold, it indicates that heat needs to be supplemented to the heating equipment, the electric valve 11 is opened, so that the hot water is transmitted to the heating system 8 for use under the action of the water pump 10; or further determining whether to increase the frequency of the compressor 7 according to the temperature, thereby increasing the circulation of the refrigerant and providing higher heat for the hot water heating system 8.
The refrigerant provided by the embodiment of the invention can be any refrigerant, such as Freon, azeotropic mixed working medium, hydrocarbon, ammonia and the like.
The heat exchanger 19 is used to provide heat to the domestic hot water system. The hot water tank 12 is a water tank of a hot water system, and hot water circulates between the water tank 12 and the heat exchanger 19, and the hot water exchanges heat with the refrigerant by the heat exchanger 19, absorbs heat from the refrigerant, and cools the refrigerant. The cooled refrigerant flows back to the cooling tower 1 to absorb heat. In addition, since domestic hot water is consumed in a large amount of water, and the water source is municipal tap water, the municipal tap water can be introduced into the water storage tank 12 through the pipe inlet 17, and the electric valve 16 is used for controlling the opening and closing of the pipe for introducing the municipal tap water into the water storage tank 12. The temperature sensor 13 collects the temperature of the hot water in the water storage tank 12 and provides the temperature to the controller 0, and the controller 0 can control the electric valve 14 according to the temperature of the hot water. For example, if the temperature is lower than the preset temperature threshold, it indicates that heat needs to be supplemented to the hot water in the water storage tank 12, the electric valve 14 is opened, so that the hot water is transmitted to the water storage tank 12 for use under the action of the water pump 15; or further determining whether to increase the frequency of the compressor 7 according to the temperature, thereby increasing the circulation of the refrigerant and providing higher heat to the hot water in the water storage tank. The electric valve 16 may be controlled by the controller 0, for example, a sensor may be provided to detect the water level of the water storage tank 12, and if the water level is lower than a preset level, the controller 0 controls the electric valve 16 to open to replenish tap water to the water storage tank 12.
The control strategy for the entire heat recovery system may be implemented in the form of computer software, which is then executed by the controller to implement the control strategy, e.g. the control of the electric valves 11, 14, 16, the control of the compressor 7, etc. Alternatively, the controller provided with the integrated control chip may implement the control strategy to control the electric valves 11, 14, and 16, the compressor 7, and the like in the form of the integrated control chip.
Based on the heat recovery system, the heat recovery method provided by the embodiment of the invention mainly exchanges heat with cooling water of the cooling tower through the refrigerant to absorb heat of the cooling water, then transfers the heat to the hot end using system, and controls the transfer quantity of the heat according to a preset control strategy. For specific implementation of the method, reference may be made to the description of the heat recovery system in the above embodiment, and details are not described again.
It can be seen that in the above heat recovery system and method provided by the embodiments of the present invention, the heat transfer is: hot water (cooling water) in the cooling tower is sprayed to the evaporation coil pipe and then exchanges heat with a refrigerant (refrigerant) flowing in the evaporation coil pipe, the cooling water is cooled, and the refrigerant absorbs heat and then is transmitted back to the heat recovery main machine. The refrigerant exchanges heat with water in the heat recovery host, and flows back to the cooling tower again after being cooled; the water absorbs heat to form hot water which is provided to customer end systems, such as heating systems and domestic water systems.
The heat recovery system is integrated with the cooling tower of the air conditioning system, the heat of hot water in the cooling tower can be recovered, and the cooling return water with higher temperature is utilized to produce domestic hot water (which can reach 50-60 ℃), so that the heat in a data center machine room is recovered, and a large amount of heat generated by the data center every day is prevented from being exhausted to the atmosphere by the cooling tower, and the heat is effectively utilized. On the other hand, the integration of the heat recovery system can also reduce the operating frequency of the cooling tower fan, even under a certain working condition, the cooling tower fan can be completely stopped from operating, and the cold energy is completely provided by the heat recovery system, so that the operating power consumption of the cooling tower is greatly reduced, and the purpose of energy conservation is achieved. Especially for large data centers, the accumulated power saving amount is particularly considerable.
In addition, the fuel combustion in municipal central heating or hot water supply can be reduced for heating or domestic hot water, and carbon emission and air pollution can be reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (16)
1. A heat recovery system, comprising: the heat absorption section, the heat recovery main machine and the tail end heat supply section;
the heat absorption section is arranged in the cooling tower and used for exchanging heat with cooling water of the cooling tower through a refrigerant so as to absorb the heat of the cooling water;
the heat recovery host is used for controlling heat to be transferred from the heat absorption section to the tail end heat supply section and controlling the heat transfer quantity according to a preset control strategy;
the terminal heat supply section is used for supplying heat to the hot end system.
2. The heat recovery system of claim 1, wherein the heat absorption section comprises: a first heat exchange unit;
the first heat exchange unit is arranged below a spray pipe of the cooling tower, so that hot water of the spray pipe is sprayed to the first heat exchange unit and exchanges heat with a refrigerant in the first heat exchange unit.
3. The heat recovery system of claim 2, wherein the first heat exchange unit is installed in a space reserved between a shower pipe and a packing in a cooling tower.
4. The heat recovery system of claim 2, wherein the first heat exchange unit comprises:
an evaporating coil; or,
the evaporator coil and a temperature sensor on the evaporator coil.
5. The heat recovery system of claim 1, wherein the heat recovery host comprises a compressor, a throttle valve, and a second heat exchange unit;
the compressor is used for driving a refrigerant to circularly flow between the heat absorption section and the heat recovery main machine;
the throttle valve is used for controlling the flow of the refrigerant;
a controller for controlling the compressor and the throttle valve;
the second heat exchange unit is used for exchanging the heat of the refrigerant with a heat end using medium, and the heat absorbing heat end using medium is provided for a heat end using system by the tail end heat supply section.
6. A heat recovery system according to claim 5, wherein the terminal heat supply section comprises: a temperature sensor, an electric valve and a water pump;
the temperature sensor is used for collecting the heat utilization temperature of the heat utilization end system;
the water pump is used for conveying the hot water to a hot end using system;
the controller is further used for determining whether to open or adjust the electric valve according to the temperature acquired by the temperature sensor so that the heat-absorbed hot end medium is conveyed to a hot end system.
7. The heat recovery system of claim 5, wherein the controller is further configured to control an operating state of the compressor in accordance with an operating state of the cooling tower; or, the compressor and the throttle valve are controlled according to the temperature of the refrigerant.
8. A heat recovery system according to any one of claims 1 to 7 wherein the hot end system comprises: heating system or domestic hot water system.
9. A method of heat recovery, the method comprising:
the heat exchange is carried out between the refrigerant and the cooling water of the cooling tower so as to absorb the heat of the cooling water;
and transferring the heat to a hot end system, and controlling the transfer quantity of the heat according to a preset control strategy.
10. The method as claimed in claim 9, wherein the absorbing heat of the cooling water by heat exchange with the cooling water of the cooling tower via the cooling medium comprises:
the hot water of the spray pipe is sprayed to the first heat exchange unit and exchanges heat with the refrigerant in the first heat exchange unit.
11. The method of claim 10, wherein the first heat exchange unit is installed in a space reserved between a shower and a packing in a cooling tower.
12. The method as claimed in claim 10, wherein the first heat exchange unit comprises an evaporator coil in which the refrigerant flows and a temperature sensor on the evaporator coil, and the temperature sensor collects the temperature of the refrigerant.
13. The method of claim 9, wherein transferring the heat to a hot end system comprises:
the refrigerant is driven to circularly flow by the compressor, and the flow of the refrigerant is controlled by the throttle valve; wherein the compressor and the throttle valve are controlled by a controller;
and exchanging the heat of the refrigerant with the hot end medium, and providing the hot end medium subjected to heat absorption for a hot end system.
14. The method of claim 13, wherein transferring the heat to a hot end system further comprises:
the controller acquires the heat utilization temperature of the heat utilization end system acquired by the temperature sensor;
and determining whether to open or adjust an electric valve according to the temperature acquired by the temperature sensor so that the water pump can convey the heat-absorbed heat end using medium to the heat end using system.
15. The method of claim 13, wherein controlling the amount of heat transferred according to a preset control strategy comprises:
the controller determines whether to control the compressor to drive the refrigerant to circularly flow or not according to the heat utilization temperature acquired by the temperature sensor arranged on the heat utilization end system; or,
the controller determines whether to control the compressor to drive the refrigerant to circularly flow or not according to the temperature of the refrigerant; or,
the controller controls the throttle valve to adjust the flow rate of the refrigerant according to the temperature of the refrigerant; or,
and the controller controls the running state of the compressor according to the running state of the cooling tower.
16. The method of any of claims 9 to 15, wherein the hot end system comprises: heating system or domestic hot water system.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758786A (en) * | 2018-06-12 | 2018-11-06 | 东北大学 | A kind of waste heat powering device of distribution cloud computing system |
| CN113175712A (en) * | 2021-04-25 | 2021-07-27 | 无锡江南计算技术研究所 | Multifunctional cooling method and system integrating free cooling and heat recovery |
| CN114025573A (en) * | 2021-11-10 | 2022-02-08 | 北京字节跳动网络技术有限公司 | Cooling system and method for data center |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2304095Y (en) * | 1997-01-15 | 1999-01-13 | 李永光 | Tightly-closed cooling tower |
| CN104197446A (en) * | 2014-08-29 | 2014-12-10 | 严瀚 | Dynamic double-cold-source pre-cooling energy-saving air conditioning system |
| CN105091266A (en) * | 2015-08-03 | 2015-11-25 | 珠海格力电器股份有限公司 | Waste heat recycling method and device and air conditioning system |
| CN205245471U (en) * | 2015-11-10 | 2016-05-18 | 北京环宇汇通能源科技有限公司 | Data center air cooling radiation system's waste heat recovery system |
| CN105716443A (en) * | 2014-12-05 | 2016-06-29 | 中国石油化工股份有限公司 | Circulating water cooling system and method |
-
2017
- 2017-01-04 CN CN201710003524.XA patent/CN106839802A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2304095Y (en) * | 1997-01-15 | 1999-01-13 | 李永光 | Tightly-closed cooling tower |
| CN104197446A (en) * | 2014-08-29 | 2014-12-10 | 严瀚 | Dynamic double-cold-source pre-cooling energy-saving air conditioning system |
| CN105716443A (en) * | 2014-12-05 | 2016-06-29 | 中国石油化工股份有限公司 | Circulating water cooling system and method |
| CN105091266A (en) * | 2015-08-03 | 2015-11-25 | 珠海格力电器股份有限公司 | Waste heat recycling method and device and air conditioning system |
| CN205245471U (en) * | 2015-11-10 | 2016-05-18 | 北京环宇汇通能源科技有限公司 | Data center air cooling radiation system's waste heat recovery system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758786A (en) * | 2018-06-12 | 2018-11-06 | 东北大学 | A kind of waste heat powering device of distribution cloud computing system |
| CN113175712A (en) * | 2021-04-25 | 2021-07-27 | 无锡江南计算技术研究所 | Multifunctional cooling method and system integrating free cooling and heat recovery |
| CN114025573A (en) * | 2021-11-10 | 2022-02-08 | 北京字节跳动网络技术有限公司 | Cooling system and method for data center |
| WO2023083141A1 (en) * | 2021-11-10 | 2023-05-19 | 抖音视界有限公司 | Heat dissipation system and method for data center |
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Application publication date: 20170613 |