CN218645684U - Refrigerating system of developments ice cold-storage - Google Patents
Refrigerating system of developments ice cold-storage Download PDFInfo
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- CN218645684U CN218645684U CN202223157368.8U CN202223157368U CN218645684U CN 218645684 U CN218645684 U CN 218645684U CN 202223157368 U CN202223157368 U CN 202223157368U CN 218645684 U CN218645684 U CN 218645684U
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Abstract
The utility model discloses a refrigeration system of dynamic ice cold-storage, which comprises a cooling water circulation system, an air-conditioning refrigeration unit, a chilled water circulation system, an ethylene glycol circulation system, a plate heat exchanger group and a terminal device, wherein the air-conditioning refrigeration unit comprises a base load refrigeration unit, a first double-working-condition refrigeration unit and a second double-working-condition refrigeration unit which are arranged in parallel; the first dual-working-condition refrigerating unit and the second dual-working-condition refrigerating unit are connected in parallel with an ice storage tank; the refrigerating system also comprises a cold accumulation circulating system which is arranged in parallel with the first double-working-condition refrigerating unit and the second double-working-condition refrigerating unit, and the first double-working-condition refrigerating unit and the second double-working-condition refrigerating unit are sequentially connected with a glycol circulating pump set, a micro ice crystal processor, an ice making pump set and an ice accumulation groove from left to right through a glycol circulating pipeline to form a main machine ice making circulating system. The refrigerating system of the utility model can not only refrigerate and cool, but also make ice and save energy.
Description
Technical Field
The utility model relates to a refrigeration technology field especially relates to a refrigerating system for developments ice cold-storage.
Background
Air-conditioning refrigeration systems in places such as general office buildings, markets, restaurants and the like are used in the daytime, and the power consumption of the refrigeration systems is an important factor causing peak load of a power grid when the refrigeration systems are in a power supply peak time of the power grid during the use period.
In order to solve the problem of peak load of a power grid, an air-conditioning refrigeration energy storage technology is adopted in the prior art, and the air-conditioning refrigeration energy storage technology can play a role in shifting peaks and filling valleys of the power grid, wherein the peak shifting and filling valleys are used for storing cold energy produced during the low-valley period of the night electricity price and then releasing the cold energy for use during the high-peak period of the day electricity price, so that the purpose of shifting peaks and filling valleys is achieved. Is beneficial to the optimal allocation of the whole social resource.
Some existing air conditioner refrigerating systems are single in refrigerating and cooling modes, and only can refrigerate and cool through a refrigerating host;
the existing air-conditioning refrigeration system also adopts a water cold accumulation type technology for energy storage, the water cold accumulation type technology adopts a water storage container, and when the cold power of a refrigerator is higher than the load of a user, the redundant part enters the water storage container; the cold energy can be selectively stored by starting more refrigerators at the flat period and the valley period in combination with different charges of peak, flat and valley electricity prices implemented by the power grid, and the cold energy is stored by starting less refrigerators at the peak period, and the insufficient part is supplemented by the cold energy in the water storage container, thereby achieving the purpose of saving the electricity charge. The existing chilled water storage technology has some defects: the water storage needs to use one or more water storage containers with very large volume capacity to store water, the space area occupied by the water storage containers is very large, and in addition, the energy storage mode of the water storage only reduces the temperature and is not frozen, and the energy storage mode without freezing is not how much energy can be stored.
The existing ice storage method adopts solid ice or ice balls which are hard and difficult to melt, and can not melt in time when cold supply is needed, the stored cold can be only slowly released and can not meet the load requirement, or a refrigeration host machine needs to be started for combined cold supply, so that the power consumption is large in the peak period of electricity consumption, and the running cost is high.
SUMMERY OF THE UTILITY MODEL
The problem that exists to prior art, the utility model aims to solve the technical problem that an adopt developments ice to carry out the cold-storage, utilize the ice thick liquid as the energy storage carrier, adopt refrigerating unit refrigeration, will make cold volume and save with the form of ice through ice making unit, melt ice release cold volume at daytime air conditioner load price peak, be used for the cooling demand, not only can refrigerate the cooling through the refrigeration host computer, can also make ice, realize conventional refrigeration, developments ice energy storage cooling, the function is abundant, the energy saving, improve the feature of environmental protection, need not use the retaining container of bulky, can save equipment occupation space's refrigerating system.
In order to solve the technical problem, the utility model provides a refrigerating system of dynamic ice cold-storage, the refrigerating system includes cooling water circulation system, air conditioner refrigerating unit, refrigerated water circulation system, ethylene glycol circulation system, plate heat exchanger group, end equipment, water collecting and distributing device, cooling water circulation system, refrigerated water circulation system, ethylene glycol circulation system all link to each other with air conditioner refrigerating unit, the refrigerated water circulation system links to each other with plate heat exchanger group, plate heat exchanger group connects water collecting and distributing device and links to each other with end equipment;
the air-conditioning refrigerating unit comprises a base load refrigerating unit, a first double-working-condition refrigerating unit and a second double-working-condition refrigerating unit which are arranged in parallel, and the first double-working-condition refrigerating unit and the second double-working-condition refrigerating unit are also connected with an ice making unit and an ice storage tank in parallel;
the plate type heat exchanger group comprises a water-water plate type heat exchanger and a water-glycol plate type heat exchanger which are arranged in parallel, and the water-water plate type heat exchanger and the water-glycol plate type heat exchanger are connected with the water collecting and distributing device and are connected with the terminal equipment;
a cold discharging pump is connected between the ice storage tank and the plate heat exchanger group;
the water collecting and distributing device consists of a water distributor and a water collector;
the base load refrigerating unit, the first double-working-condition refrigerating unit, the second double-working-condition refrigerating unit, the ice storage tank, the water-water plate type heat exchanger and the water-ethylene glycol plate type heat exchanger respectively comprise two groups of inlets and outlets, the two groups of inlets and outlets are respectively a first group of inlets and outlets and a second group of inlets and outlets, the inlets of the first group of inlets and outlets of the first double-working-condition refrigerating unit are connected with the outlet of the ethylene glycol circulating pump group and the inlet of the first group of inlets and outlets of the ice making unit, and the inlets of the first group of inlets and outlets of the second double-working-condition refrigerating unit are connected with the outlet of the ethylene glycol circulating pump group and the inlet of the second group of inlets and outlets of the ice making unit;
the ethylene glycol circulating system comprises an ethylene glycol circulating pipeline;
the first double-working-condition refrigerating unit and the second double-working-condition refrigerating unit are both connected with a glycol circulating pipeline, and the first double-working-condition refrigerating unit and the second double-working-condition refrigerating unit are sequentially connected with a glycol circulating pump group, a micro-ice crystal processor group, an ice making pump group and an ice storage tank through the glycol circulating pipeline from left to right for realizing the circulation of glycol solution between the first double-working-condition refrigerating unit, the second double-working-condition refrigerating unit and a glycol plate type heat exchanger so as to form a main machine ice making circulating system;
the chilled water circulating system is connected with the main machine ice making circulating system;
outlets of the first group of inlet and outlet and outlets of the second group of inlet and outlet of the ice storage tank are respectively connected with the cooling pump, the water-water plate type heat exchanger and the water-ethylene glycol plate type heat exchanger, and the ice storage tank, the cooling pump, the water-water plate type heat exchanger, the water-ethylene glycol plate type heat exchanger and the terminal equipment are connected to form an ice melting and cooling circulation system so as to supply cold for the terminal equipment.
Aiming at the further improvement of the technical scheme, the first group of inlet and outlet and the second group of inlet and outlet of the base load refrigerating unit are both connected with a first temperature sensor;
the first group of inlet and outlet and the second group of inlet and outlet of the first double-working-condition refrigerating unit are both connected with a second temperature sensor;
and the first group of inlet and outlet and the second group of inlet and outlet of the second dual-working-condition refrigerating unit are both connected with a third temperature sensor.
Aiming at the further improvement of the technical proposal, the micro ice crystal processor group comprises two micro ice crystal processors which are arranged between the ice making machine group and the ice storage tank.
According to the further improvement of the technical scheme, the base load refrigerating unit, the first double-working-condition refrigerating unit and the second double-working-condition refrigerating unit are internally provided with an evaporator and a condenser.
According to the technical scheme, the cooling water circulation system comprises a plurality of groups of cooling towers, cooling water pipelines and cooling water pump sets corresponding to the number of the air-conditioning refrigerating units, water outlet ends of the groups of cooling towers are connected with water inlet ends of the cooling water pump sets through the cooling water pipelines, and water outlet ends of the cooling water pump sets are connected with the base load refrigerating unit, the first double-working-condition refrigerating unit and the second double-working-condition refrigerating unit of the air-conditioning refrigerating unit in a one-to-one correspondence mode so as to achieve communication between the air-conditioning refrigerating unit and the groups of cooling towers.
Aiming at further improvement of the technical scheme, the cooling water pipeline is divided into a cooling water supply pipeline and a cooling water return pipeline, one end of the cooling water supply pipeline is communicated with water outlet ends of a plurality of groups of cooling towers, and the other end of the cooling water supply pipeline is communicated with a cooling water pump group, a base load refrigerating unit, a first double-working-condition refrigerating unit and a second double-working-condition refrigerating unit; one end of the cooling water return pipeline is connected with the water outlet ends of the base load refrigerating unit, the first dual-working-condition refrigerating unit and the second dual-working-condition refrigerating unit, and the other end of the cooling water return pipeline is communicated with the water inlet ends of the plurality of groups of cooling towers.
According to the technical scheme, the refrigerating water circulation system comprises a refrigerating water pump set and a refrigerating water pipeline, one end of the refrigerating water pump set is connected with the water-water plate type heat exchanger through the refrigerating water pipeline, the other end of the refrigerating water pump set is connected with one end of the water distributor through the refrigerating water pipeline, the base load refrigerating unit, the first dual-working-condition refrigerating unit and the second dual-working-condition refrigerating unit are connected with the water-water plate type heat exchanger and the refrigerating water pump set through the refrigerating water pipeline, the other end of the water distributor is connected with an inlet of the terminal device, a water outlet end of the terminal device is connected with one end of the water collector, the water collector is further connected with the refrigerating water pump set through the refrigerating water pipeline, and the base load refrigerating unit, the first dual-working-condition refrigerating unit and the second dual-working-condition refrigerating unit are further connected with the water distributor and the terminal device through the refrigerating water pipeline.
According to the technical scheme, the refrigerating water pipeline is divided into a refrigerating water supply pipeline and a refrigerating water return pipeline, the base-load refrigerating unit is connected with the water plate type heat exchanger, the refrigerating water pump set and the water distributor through the refrigerating water supply pipeline, and the water collector is connected with the refrigerating water pump set and the base-load refrigerating unit through the refrigerating water return pipeline.
Aiming at the further improvement of the technical scheme, the inlet and the outlet of the first group of inlet and outlet of the base load refrigerating unit are both connected with a first electric butterfly valve;
a second group of inlets and outlets of the first double-working-condition refrigerating unit are connected with a second electric butterfly valve;
a second group of inlets and outlets of the second dual-working-condition refrigerating unit are connected with a third electric butterfly valve;
a cooling tower electric butterfly valve is arranged on a cooling tower of the cooling water circulation system;
a cooling water electric butterfly valve is arranged on a cooling water pipeline of the cooling water circulating system;
and a chilled water electric butterfly valve is arranged on a chilled water pipeline of the chilled water circulating system.
The chilled water circulation system comprises an expansion water tank, and the other end of the water collector is connected with the expansion water tank.
Compared with the prior art, the utility model discloses a scheme contains following beneficial effect at least:
the refrigeration system of the utility model comprises a cooling water circulation system, an air-conditioning refrigeration unit, a chilled water circulation system, an ethylene glycol circulation system, a plate type heat exchanger group and a terminal device, wherein the air-conditioning refrigeration unit comprises a base load refrigeration unit, a first double-working-condition refrigeration unit and a second double-working-condition refrigeration unit which are arranged in parallel; the first dual-working-condition refrigerating unit and the second dual-working-condition refrigerating unit are also connected with an ice storage tank in parallel; the refrigeration system also comprises a cold accumulation circulating system which is arranged in parallel with the first double-working-condition refrigeration unit and the second double-working-condition refrigeration unit, the plate heat exchanger group comprises a water-water plate heat exchanger and a water-glycol plate heat exchanger which are arranged in parallel, and the water-water plate heat exchanger and the water-glycol plate heat exchanger are both connected with the terminal equipment; the first dual-condition refrigerating unit and the second dual-condition refrigerating unit are connected with an ethylene glycol circulating pipeline, and the first dual-condition refrigerating unit and the second dual-condition refrigerating unit are sequentially connected with an ethylene glycol circulating pump set, a micro ice crystal processor, an ice making pump set and an ice storage tank from left to right through the ethylene glycol circulating pipeline to form a main machine ice making circulating system; the chilled water circulation system is connected with the ice making circulation system of the main machine. The utility model discloses still prepare the ice slurry through ice making machine group and carry out the cold-storage to the ice slurry is as the energy storage carrier, will make cold volume and save with the form of ice and get up, melts the release cold volume with ice at air conditioner load price peak period on daytime, thereby satisfies the demand of user's cooling. The utility model discloses to pass through ethylene glycol circulating pump group, the ethylene glycol pump after the ethylene glycol circulating line will cool down goes into ice making machine group, utilize ice making machine group to prepare the ice thick liquid, the ice thick liquid of preparing is 0 ℃ frozen water mixture, send into the ice thick liquid of preparing and store in the ice storage tank, when peak load daytime, the freezing water circulating line and the freezing water pump group of ice storage tank lower part 0 ℃ water through the freezing water circulating system the inside are pumped to water-water plate heat exchanger and are carried out the heat transfer, thereby for the end equipment cooling. The utility model discloses an ice slurry that refrigerating system can prepare 0 ℃ frozen water mixture, adopt refrigerating unit refrigeration, ice making unit will make cold volume and save with the form of developments ice, melt ice release cold volume at air conditioner load price peak time daytime on daytime, thereby be used for the terminal equipment cooling, can satisfy the terminal cooling demand of equipment, the utility model discloses a refrigerating system not only can refrigerate the cooling through the refrigeration host computer, can also make ice, realize conventional refrigeration, developments ice storage can the cooling, and the function is abundant, the energy saving, improve the feature of environmental protection, need not use the retaining container of bulky, can save the refrigerating system of equipment area occupied, have good energy-conserving characteristic, need not to use the puck, save the required time of puck ice-melt, improved ice-melt efficiency, can satisfy the high-load high-electricity price period and need not open the refrigeration host computer requirement, reduce the working costs.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
Fig. 1 is a schematic view of the entire system of the refrigeration system of the present invention;
FIG. 2 is a detailed schematic view of the cooling water circulation system of the present invention;
FIG. 3 is a detailed schematic view of the connection between the chilled water circulation system and the glycol circulation line according to the present invention;
fig. 4 is a detailed enlarged schematic view of the connection between the air conditioning refrigeration unit and the plate heat exchanger unit of the present invention.
In the figure, an air-conditioning refrigeration unit 1, a base load refrigeration unit 11, a first dual-operating-condition refrigeration unit 12, a second dual-operating-condition refrigeration unit 13, a first temperature sensor 14, a second temperature sensor 15, a third temperature sensor 16, a first electric butterfly valve 17, a second electric butterfly valve 18, a third electric butterfly valve 19, a plate heat exchanger group 2, a water-glycol plate heat exchanger 22, a water-water plate heat exchanger 21, a cooling water circulation system 3, a cooling tower 31, a cooling tower electric butterfly valve 311, a cooling water pipeline 32, a cooling water supply pipeline 321, a cooling water return pipeline 322, a cooling water pump group 33, a cooling water electric butterfly valve 34, a chilled water circulation system 4, a chilled water pump group 41, a chilled water pipeline 42, a chilled water pipeline 421, a chilled water return pipeline 422, an ice-making water separator 43, a water collector 44, a differential pressure bypass controller 45, an expansion water tank 46, a water electric butterfly valve 47, an ice storage tank 5, a cold pump 51, an ethylene glycol circulation pump group 6, an ice-making unit 7, a micro ice crystal water processor 8 and a pump group 9 are provided.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
As shown in fig. 1-4, the first embodiment of the present invention provides a dynamic ice cold storage refrigeration system, which includes a cooling water circulation system 3, an air-conditioning refrigeration unit 1, a chilled water circulation system 4, a plate heat exchanger set 2, a terminal device, an ethylene glycol circulation system, and a water collecting and distributing device, wherein the cooling water circulation system 3, the chilled water circulation system 4, and the ethylene glycol circulation system are all connected to the air-conditioning refrigeration unit 1, the chilled water circulation system 4 is connected to the plate heat exchanger set 2, and the plate heat exchanger set 2 is connected to the water collecting and distributing device and to the terminal device;
the air-conditioning refrigerating unit 1 comprises a base load refrigerating unit 11, a first double-working-condition refrigerating unit 12 and a second double-working-condition refrigerating unit 13 which are arranged in parallel, wherein the first double-working-condition refrigerating unit 12 and the second double-working-condition refrigerating unit 13 are also connected with an ice maker unit and an ice storage tank 5 in parallel;
the plate heat exchanger group 2 comprises a water-water plate type heat exchanger 21 and a water-glycol plate type heat exchanger 22 which are arranged in parallel, and the water-water plate type heat exchanger 21 and the water-glycol plate type heat exchanger 22 are both connected with terminal equipment;
a cold discharge pump 51 is connected between the ice storage tank 5 and the plate type heat exchanger group 2, an upper water distributor and a lower water distributor are arranged in the ice storage tank 5, and the upper water distributor is arranged above the lower water distributor;
the water collecting and distributing device consists of a water distributing device 43 and a water collecting device 44;
the base-load refrigerating unit 11, the first dual-working-condition refrigerating unit 12, the second dual-working-condition refrigerating unit 13, the ice storage tank 5, the water-water plate type heat exchanger 21 and the water-glycol plate type heat exchanger 22 respectively comprise two groups of inlets and outlets, the two groups of inlets and outlets are respectively a first group of inlets and outlets and a second group of inlets and outlets, inlets of the first group of inlets and outlets of the first dual-working-condition refrigerating unit 12 are connected with outlets of the glycol circulating pump unit 6 and inlets of the first group of inlets and outlets of the ice storage tank 5, and inlets of the first group of inlets and outlets of the second dual-working-condition refrigerating unit 13 are connected with outlets of the glycol circulating pump unit 6 and inlets of the second group of inlets and outlets of the ice storage tank 5;
the ethylene glycol circulating system comprises an ethylene glycol circulating pipeline;
the first dual-condition refrigerating unit 12 and the second dual-condition refrigerating unit 13 are connected with an ethylene glycol circulating pipeline, the first dual-condition refrigerating unit 12 and the second dual-condition refrigerating unit 13 are sequentially connected with an ethylene glycol circulating pump unit 6, an ice making unit 7, an ice making pump unit 9 and an ice storage tank 5 from left to right through the ethylene glycol circulating pipeline to form a main machine ice making circulating system, and the ethylene glycol circulating pump unit 6 is used for realizing the circulation of ethylene glycol among the first dual-condition refrigerating unit 12, the second dual-condition refrigerating unit 13 and an ethylene glycol plate type heat exchanger;
the chilled water circulating system 4 is connected with the ice making circulating system of the main machine;
the ethylene glycol solution flows into a first double-working-condition refrigerating unit 12 and a second double-working-condition refrigerating unit 13 through an ethylene glycol circulating pipeline for heat exchange to obtain a cooled ethylene glycol solution, the ethylene glycol solution after heat exchange and temperature reduction is pressurized by an ethylene glycol circulating pump unit 6 to enter an ice making unit 7 to cool water flowing out of a cold storage tank 5 and exchange heat with the water flowing out of the cold storage tank 5 so as to cool the water in an ice storage tank 5 to obtain a heated ethylene glycol solution, the heated ethylene glycol solution is pumped into the first double-working-condition refrigerating unit 12 and the second double-working-condition refrigerating unit 13 by the ethylene glycol circulating pump unit 6 for heat exchange and temperature reduction again, the water in the ice storage tank 5 is cooled to form supercooled water at the temperature of-2 ℃, ice slurry is formed by the action of the ice making unit 7, the prepared ice slurry is sent into the ice storage tank 5 for storage, and the ice slurry can form a natural layered state with the ice slurry at the upper temperature and the lower temperature of 0 ℃ water in the ice storage tank 5 due to density difference. The ice making machine set 7 adopted by the invention is an ultrasonic wave crystal promoting device which is a container with ultrasonic wave radiation, supercooled water is quickly converted into ice slurry under the stimulation of ultrasonic wave, the micro ice crystal processor set 8 plays a role in filtering the ice slurry, and the prepared ice slurry is sent into the ice storage tank 5 for storage. The first dual-working-condition refrigerating unit 12 and the second dual-working-condition refrigerating unit 13 provide cold sources for the ice making unit 7, ice slurry prepared by the ice making unit 7 is an ice-water mixture at 0 ℃, the ice making unit 7 is a container with ultrasonic radiation, supercooled water is quickly converted into the ice slurry under the stimulation of ultrasonic waves, the prepared ice slurry is sent into the ice storage tank 5 for storage, and the ice slurry can form a natural layered state with the ice slurry at the upper part and the water at the lower part at 0 ℃ in the ice storage tank 5 due to density difference;
outlets of a first group of inlets and outlets of a second group of inlets and outlets of the ice storage tank 5 are respectively connected with the water-water plate type heat exchanger 21, and the ice storage tank 5 and the water-water plate type heat exchanger 21 are connected with end equipment to form an ice melting and cooling circulation system so as to supply cooling for the end equipment; after the cooled ethylene glycol is conveyed to the ice storage tank 5 through the ethylene glycol circulating pump unit 6 and the ethylene glycol circulating pipeline, the ethylene glycol solution absorbs heat in the ice storage tank 5 and then flows back to the first dual-working-condition refrigerating unit 12, the second dual-working-condition refrigerating unit 13 or the water-water plate type heat exchanger 21 through the chilled water pump unit 41 of the chilled water circulating system 4 to exchange heat so as to supply cold for the end equipment, so that the ice slurry in the ice storage tank 5 is iced through circulation, and at the peak load in the daytime, water at 0 ℃ in the cold storage tank 5 flows into the water-water plate type heat exchanger 21 and the water-ethylene glycol plate type heat exchanger 22 through the cold discharge pump from the lower water distributor to exchange heat respectively to obtain cooled water, and the cooled water is pumped back into the ice storage tank 5 through the cold discharge pump 53 and sprayed onto the ice slurry through the upper water distributor of the ice storage tank 5 to melt ice; after the 12 ℃ chilled water flowing out of the water collector 44 is subjected to heat exchange and cooling through the water-water plate type heat exchanger 21 and the water-glycol plate type heat exchanger 22, the 7 ℃ chilled water is obtained, is pressurized to the water separator 43 through the chilled water pump unit 41, and then flows to the terminal equipment for heat exchange and cold supply.
The first group of inlet and outlet and the second group of inlet and outlet of the base load refrigerating unit 11 are both connected with a first temperature sensor 14; the first group of inlet and outlet and the second group of inlet and outlet of the first double-working-condition refrigerating unit 12 are both connected with a second temperature sensor 15; and the first group of inlet and outlet and the second group of inlet and outlet of the second dual-working-condition refrigerating unit 13 are both connected with a third temperature sensor 16, and the inlet and outlet water temperatures of the base load refrigerating unit 11, the first dual-working-condition refrigerating unit 12 and the second dual-working-condition refrigerating unit 13 are detected by using the first temperature sensor 14, the second temperature sensor 15 and the third temperature sensor 16.
The utility model discloses a little ice crystal treater 8 is including two little ice crystal treaters, and two little ice crystal treaters are all installed at ice making machine 7 and are held between the ice groove 5, and the ice slurry of preparing ice making machine 7 through little ice crystal treater 8 filters.
The utility model discloses a base carries refrigerating unit 11, first dual operating mode refrigerating unit 12, the inside of second dual operating mode refrigerating unit 13 all installs evaporimeter and condenser.
The embodiment of the utility model provides a when specifically realizing, this cooling water circulation system 3 includes a plurality of cooling tower 31 of group, cooling water piping 32, cooling water pump package 33 corresponding with air conditioning refrigeration unit 1 quantity, the play water end of a plurality of cooling tower 31 of group passes through cooling water piping 32 and links to each other with the intake end of cooling water pump package 33, the play water end of cooling water pump package 33 and air conditioning refrigeration unit 1's base load refrigeration unit 11, first double-operating mode refrigeration unit 12, 13 one-to-one of second double-operating mode refrigeration unit are connected in order to realize air conditioning refrigeration unit 1 and a plurality of intercommunication of group cooling tower 31. The cooling water pipeline 32 is divided into a cooling water supply pipeline 32 and a cooling water return pipeline 322, one end of the cooling water supply pipeline 32 is communicated with the water outlet ends of the plurality of groups of cooling towers 31, and the other end of the cooling water supply pipeline 32 is communicated with the cooling water pump group 33, the base load refrigerating unit 11, the first dual-operating-condition refrigerating unit 12 and the second dual-operating-condition refrigerating unit 13; one end of the cooling water return pipeline 322 is connected with the water outlet ends of the base load refrigerating unit 11, the first dual-operating-condition refrigerating unit 12 and the second dual-operating-condition refrigerating unit 13, and the other end of the cooling water return pipeline 322 is communicated with the water inlet ends of the plurality of groups of cooling towers 31. When specifically realizing, the utility model discloses a cooling tower 31 is provided with three group, cooling water pump group 33 is provided with three cooling water pump and a cooling water backup pump, the cooling water after the cooling of three group's cooling tower 31 passes through cooling water supply pipe 32, cooling water pump group 33 pump goes into basic load refrigerating unit 11, first dual-operating mode refrigerating unit 12, the inside condenser of second dual-operating mode refrigerating unit 13, make cooling water and basic load refrigerating unit 11, first dual-operating mode refrigerating unit 12, the inside condenser of second dual-operating mode refrigerating unit 13 carries out the heat transfer in order to take away basic load refrigerating unit 11, first dual-operating mode refrigerating unit 12, the heat of second dual-operating mode refrigerating unit 13, obtain the cooling water after the intensification, the cooling water rethread cooling water return water pipeline 322 after the intensification gets into basic load refrigerating unit 11 again from basic load refrigerating unit 11, first dual-operating mode refrigerating unit 12, the water outlet end of second dual-operating mode refrigerating unit 13 flows back to in a plurality of groups cooling tower 31, again by a plurality of groups cooling tower 31 cools down, the cooling water after a plurality of groups cooling tower 31 gets into basic load refrigerating unit 11 again, first dual-operating mode refrigerating unit 12, first dual-operating mode refrigerating unit 13, thereby the cooling water circulation of second dual-operating mode refrigerating unit 11 gets back to a plurality of groups 11, thereby the cooling water under a plurality of dual-operating mode refrigerating unit 31, thereby the cooling water output condition 11, thereby the dual-operating mode refrigerating unit 11.
The utility model discloses a refrigerated water circulation system 4 includes chilled water pump unit 41 and chilled water pipe 42, the one end of chilled water pump unit 41 is passed through chilled water pipe 42 and is connected water-water plate heat exchanger 21, the other end of chilled water pump unit 41 passes through chilled water pipe 42 and links to each other with the one end of water knockout drum 43, base load refrigerating unit 11, first dual mode refrigerating unit 12, second dual mode refrigerating unit 13 passes through chilled water pipe and water-water plate heat exchanger 21, chilled water pump unit 41 links to each other, the other end of water knockout drum 43 links to each other with the import of end equipment, the water outlet end of end equipment links to each other with the one end of water collector 44, water collector 44 still links to each other with chilled water pump unit 41 through chilled water pipe 42, base load refrigerating unit 11, first dual mode refrigerating unit 12, second dual mode refrigerating unit 13 still with water knockout drum 43 through chilled water pipe, end equipment links to each other. When specifically realizing, the utility model discloses a chilled water pump package 41 is provided with three chilled water pump and a chilled water reserve pump, and chilled water pipeline 42 divide into chilled water supply pipe 421 and chilled water return water pipe 422, and base year refrigerating unit 11 links to each other with water plate heat exchanger, chilled water pump package 41, water knockout drum 43 through chilled water supply pipe 421, and water collector 44 links to each other with chilled water pump package 41, base year refrigerating unit 11 through chilled water return water pipe 422. The utility model discloses a chilled water pump package 41 sends into the refrigerated water in the inside evaporimeter coil of base load refrigerating unit 11 to carry out the heat transfer with the refrigerant of the inside evaporimeter of base load refrigerating unit 11 and cool down and form microthermal refrigerated water, microthermal refrigerated water sends to water knockout drum 43 through refrigerated water supply pipe 421, microthermal refrigerated water sends to terminal equipment through water knockout drum 43, carries out the heat transfer refrigeration with each coil pipe fan of terminal equipment, thereby reaches the purpose of cooling; the chilled water after heat exchange and temperature rise flows to the water collector 44 through the chilled water return pipe 422, the chilled water of the water collector 44 is pumped back by the chilled water pump unit 41 through the chilled water return pipe 422, is pumped into the base load refrigeration unit 11 again through the chilled water pump unit 41 for heat exchange and refrigeration, and is sent to each coil pipe fan of the terminal equipment, and the process is repeated, so that the circulation of the chilled water circulation system 4 is realized.
The inlet and the outlet of the first group of the inlet and the outlet of the base load refrigerating unit 11 are both connected with a first electric butterfly valve 17; a second group of inlets and outlets of the first double-working-condition refrigerating unit 12 are connected with a second electric butterfly valve 18; a second group of inlets and outlets of the second double-working-condition refrigerating unit 13 are connected with a third electric butterfly valve 19; the cooling water circulation system further comprises a cooling tower electric butterfly valve 311 arranged on the cooling tower 31 of the cooling water circulation system 3, and the cooling tower electric butterfly valve 311 controls the cooling tower 31 to be opened and closed; a cooling water electric butterfly valve 34 is installed on the cooling water pipeline 32 of the cooling water circulation system 3, and the circulation of cooling water in the cooling water pipeline 32 is controlled through the cooling water electric butterfly valve 34; a chilled water electric butterfly valve 47 is mounted on the chilled water pipe 42 of the chilled water circulation system 4, and the flow of the chilled water in the chilled water pipe 42 is controlled by the chilled water electric butterfly valve 47.
The utility model discloses in the concrete implementation, the utility model discloses a chilled water circulation system 4 includes expansion tank 46, water collector 44's the other end is connected with expansion tank 46, expansion tank 46 is connected with the running water, this chilled water circulation system 4 includes pressure differential bypass controller 45, install pressure differential bypass controller 45 between water knockout drum 43 and water collector 44, pressure differential bypass controller 45 is according to water knockout drum 43 and water collector 44 place chilled water pipe 42's pressure differential automatically regulated, in order to keep air conditioning refrigeration unit 1 to have sufficient water yield and load side sufficient supply return water pressure differential, also prevent simultaneously according to water knockout drum 43 and water collector 44 place chilled water pipe 42's pressure differential too big.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, so that the present invention is not limited by the scope of the present invention.
Claims (10)
1. A refrigerating system for dynamic ice cold accumulation is characterized in that: the refrigeration system comprises a cooling water circulation system, an air-conditioning refrigeration unit, a chilled water circulation system, a glycol circulation system, a plate type heat exchanger group, terminal equipment and a water collecting and distributing device, wherein the cooling water circulation system, the chilled water circulation system and the glycol circulation system are all connected with the air-conditioning refrigeration unit;
the air-conditioning refrigerating unit comprises a base load refrigerating unit, a first double-working-condition refrigerating unit and a second double-working-condition refrigerating unit which are arranged in parallel, and the first double-working-condition refrigerating unit and the second double-working-condition refrigerating unit are also connected with an ice making unit and an ice storage tank in parallel;
the plate type heat exchanger group comprises a water-water plate type heat exchanger and a water-glycol plate type heat exchanger which are arranged in parallel, and the water-water plate type heat exchanger and the water-glycol plate type heat exchanger are connected with the water collecting and distributing device and are connected with the terminal equipment;
a cold discharge pump is connected between the ice storage tank and the plate type heat exchanger group;
the water collecting and distributing device consists of a water distributor and a water collector;
the base load refrigerating unit, the first double-working-condition refrigerating unit, the second double-working-condition refrigerating unit, the ice storage tank, the water-water plate type heat exchanger and the water-ethylene glycol plate type heat exchanger respectively comprise two groups of inlets and outlets, the two groups of inlets and outlets are respectively a first group of inlets and outlets and a second group of inlets and outlets, the inlets of the first group of inlets and outlets of the first double-working-condition refrigerating unit are connected with the outlet of the ethylene glycol circulating pump group and the inlet of the first group of inlets and outlets of the ice making unit, and the inlets of the first group of inlets and outlets of the second double-working-condition refrigerating unit are connected with the outlet of the ethylene glycol circulating pump group and the inlet of the second group of inlets and outlets of the ice making unit;
the ethylene glycol circulating system comprises an ethylene glycol circulating pipeline;
the first dual-working-condition refrigerating unit and the second dual-working-condition refrigerating unit are both connected with an ethylene glycol circulating pipeline, and the first dual-working-condition refrigerating unit and the second dual-working-condition refrigerating unit are sequentially connected with an ethylene glycol circulating pump group, a micro-ice crystal processor group, an ice making pump group and an ice storage tank from left to right through the ethylene glycol circulating pipeline, wherein the ethylene glycol circulating pump group, the micro-ice crystal processor group, the ice making pump group and the ice storage tank are used for realizing the circulation of ethylene glycol solution between the first dual-working-condition refrigerating unit, the second dual-working-condition refrigerating unit and the ethylene glycol plate heat exchanger so as to form a main machine ice making circulating system;
the chilled water circulating system is connected with the main machine ice-making circulating system;
outlets of the first group of inlet and outlet and outlets of the second group of inlet and outlet of the ice storage tank are respectively connected with the cooling pump, the water-water plate type heat exchanger and the water-ethylene glycol plate type heat exchanger, and the ice storage tank, the cooling pump, the water-water plate type heat exchanger, the water-ethylene glycol plate type heat exchanger and the terminal equipment are connected to form an ice melting and cooling circulation system so as to supply cold for the terminal equipment.
2. The dynamic ice storage refrigeration system of claim 1 wherein:
the first group of inlet and outlet and the second group of inlet and outlet of the base load refrigerating unit are both connected with a first temperature sensor;
the first group of inlet and outlet and the second group of inlet and outlet of the first double-working-condition refrigerating unit are both connected with a second temperature sensor;
and the first group of inlet and outlet and the second group of inlet and outlet of the second double-working-condition refrigerating unit are both connected with a third temperature sensor.
3. The dynamic ice storage refrigeration system of claim 1 wherein: the micro ice crystal processor group comprises two micro ice crystal processors, and the two micro ice crystal processors are arranged between the ice making unit and the ice storage tank.
4. The dynamic ice storage refrigeration system of claim 1 wherein: and an evaporator and a condenser are arranged in the base load refrigerating unit, the first double-working-condition refrigerating unit and the second double-working-condition refrigerating unit.
5. The dynamic ice storage refrigeration system of claim 1 wherein: the cooling water circulation system comprises a plurality of groups of cooling towers, a cooling water pipeline and cooling water pump sets corresponding to the number of the air-conditioning refrigerating units, the water outlet ends of the plurality of groups of cooling towers are connected with the water inlet end of the cooling water pump set through the cooling water pipeline, and the water outlet end of the cooling water pump set is connected with the base load refrigerating unit, the first double-working-condition refrigerating unit and the second double-working-condition refrigerating unit of the air-conditioning refrigerating unit in a one-to-one correspondence mode so as to achieve communication between the air-conditioning refrigerating unit and the plurality of groups of cooling towers.
6. The dynamic ice thermal storage refrigeration system of claim 5 wherein: the cooling water pipeline is divided into a cooling water supply pipeline and a cooling water return pipeline, one end of the cooling water supply pipeline is communicated with the water outlet ends of the plurality of groups of cooling towers, and the other end of the cooling water supply pipeline is communicated with the cooling water pump group, the base load refrigerating unit, the first double-working-condition refrigerating unit and the second double-working-condition refrigerating unit; one end of the cooling water return pipeline is connected with the water outlet ends of the base load refrigerating unit, the first dual-working-condition refrigerating unit and the second dual-working-condition refrigerating unit, and the other end of the cooling water return pipeline is communicated with the water inlet ends of the plurality of groups of cooling towers.
7. The dynamic ice storage refrigeration system of claim 1 wherein: the chilled water circulation system comprises a chilled water pump set and a chilled water pipeline, one end of the chilled water pump set is connected with a water-water plate type heat exchanger through the chilled water pipeline, the other end of the chilled water pump set is connected with one end of a water distributor through the chilled water pipeline, a base load refrigerating unit, a first dual-working-condition refrigerating unit and a second dual-working-condition refrigerating unit are connected with the water-water plate type heat exchanger and the chilled water pump set through chilled water pipes, the other end of the water distributor is connected with an inlet of a terminal device, a water outlet end of the terminal device is connected with one end of a water collector, the water collector is further connected with the chilled water pump set through the chilled water pipeline, and the base load refrigerating unit, the first dual-working-condition refrigerating unit and the second dual-working-condition refrigerating unit are further connected with the water distributor and the terminal device through chilled water pipes.
8. The dynamic ice storage refrigeration system according to claim 7, wherein: the chilled water pipeline is divided into a chilled water supply pipeline and a chilled water return pipeline, the base-load refrigerating unit is connected with the water plate type heat exchanger, the chilled water pump set and the water distributor through the chilled water supply pipeline, and the water collector is connected with the chilled water pump set and the base-load refrigerating unit through the chilled water return pipeline.
9. The dynamic ice storage refrigeration system of claim 1 wherein: the inlet and the outlet of the first group of inlet and outlet of the base load refrigerating unit are both connected with a first electric butterfly valve;
a second group of inlets and outlets of the first double-working-condition refrigerating unit are connected with a second electric butterfly valve;
a second group of inlets and outlets of the second dual-working-condition refrigerating unit are connected with a third electric butterfly valve;
a cooling tower electric butterfly valve is arranged on a cooling tower of the cooling water circulation system;
a cooling water electric butterfly valve is arranged on a cooling water pipeline of the cooling water circulating system;
and a chilled water electric butterfly valve is arranged on a chilled water pipeline of the chilled water circulating system.
10. The dynamic ice thermal storage refrigeration system of claim 7 wherein: the chilled water circulation system comprises an expansion water tank, and the other end of the water collector is connected with the expansion water tank.
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| CN115839524A (en) * | 2022-11-28 | 2023-03-24 | 广东禹铎环境技术发展有限公司 | Air conditioning system with dynamic ice storage function and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115839524A (en) * | 2022-11-28 | 2023-03-24 | 广东禹铎环境技术发展有限公司 | Air conditioning system with dynamic ice storage function and control method thereof |
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