CN113739294A - Three-stage series connection internal and external ice melting ultralow temperature cold supply equipment and use method - Google Patents
Three-stage series connection internal and external ice melting ultralow temperature cold supply equipment and use method Download PDFInfo
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- CN113739294A CN113739294A CN202110973215.1A CN202110973215A CN113739294A CN 113739294 A CN113739294 A CN 113739294A CN 202110973215 A CN202110973215 A CN 202110973215A CN 113739294 A CN113739294 A CN 113739294A
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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
- F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—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 cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
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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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses a three-stage series connection internal and external ice melting ultra-low temperature region cold supply device and a use method thereof, and relates to the technical field of ultra-low temperature cold supply devices. The base carries the host computer and establishes ties with the plate heat exchanger of duplex condition host computer and can reduce the temperature of refrigerated water to below 5 ℃, and ice-melt plate heat exchanger can reduce the temperature of refrigerated water to below 2 ℃ to, the refrigerated water can form bigger difference in temperature with the water collector when passing through the water knockout drum output, realizes big difference in temperature rapid cooling.
Description
Technical Field
The invention relates to the technical field of ultralow-temperature cold supply equipment, in particular to three-stage series connection internal and external ice melting ultralow-temperature cold supply equipment and a using method thereof.
Background
The ice storage air conditioning system utilizes the power at the off-peak at night to make ice and store cold, melts and releases the ice at the time of the power peak in the daytime, can cut peaks and fill valleys, balances the load of a power grid, reduces the construction cost of a peak cutting power station and reduces the pollution to the environment, and has good economic benefit and social benefit.
Meanwhile, the conventional ice storage air-conditioning system is generally designed as an internal ice melting system or an external ice melting system, and the combination of internal ice melting and external ice melting processes cannot be realized, so that the aim of peak avoidance operation under the condition of peak power load is met. Therefore, there is a need for an ultra-low temperature cooling system that can provide a greater temperature differential and a greater ice-melting rate.
Disclosure of Invention
In order to solve the technical problems, the invention provides three-stage series connection internal and external ice melting ultralow temperature cold supply equipment and a using method thereof, so as to improve the cold supply efficiency and the power peak load shifting ratio of an ice storage air conditioning system.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a three-stage series connection internal and external ice melting ultralow temperature cold supply device, which comprises a chilled water circulating system, a base load refrigerating system, a dual-working-condition refrigerating system and an ice melting system;
the chilled water circulating system comprises a water collector, a water separator and a chilled water circulating pump arranged between the water collector and the water separator; the water collector, the chilled water circulating pump and the water separator are communicated through a chilled water circulating pipeline;
the inlet end and the outlet end of the base load refrigerating system are communicated with the chilled water circulation pipeline through a base load pipeline;
the dual-working-condition refrigeration system comprises a main plate type heat exchanger, a dual-working-condition main machine and a solution pump; the main plate type heat exchanger, the dual-working-condition main machine and the solution pump are communicated through pipelines, and a cold supply end of the main plate type heat exchanger is communicated with the chilled water circulation pipeline;
the ice melting system comprises an ice melting pump and an ice melting plate type heat exchanger; the ice melting pump is communicated with the ice melting plate type heat exchanger through a pipeline; the cold supply end of the ice melting plate type heat exchanger is communicated with the chilled water circulation pipeline;
an ice storage device is arranged between the double-working-condition refrigeration system and the ice melting system; the ice storage device comprises an ice storage tank and an ice storage coil pipe; the ice storage coil is arranged in the ice storage tank, the ice storage tank is communicated with the ice melting system, and the coil is communicated with the dual-working-condition refrigerating system;
and a first valve is arranged in the double-working-condition refrigeration system in parallel connection with the ice storage device.
Optionally, the base-load refrigeration system includes a base-load chilled water pump, a base-load host and a ninth valve, which are sequentially arranged on the base-load pipeline.
Optionally, a second valve is disposed on an outlet side of the refrigerating end of the ice storage device.
Optionally, a third valve is connected in parallel with the main plate heat exchanger in the dual-working-condition refrigeration system.
Optionally, a fourth valve is arranged on an inlet side of the refrigerating end of the main plate type heat exchanger.
Optionally, a fifth valve is arranged on an outlet side of the cold supply end of the main plate type heat exchanger.
Optionally, a sixth valve is arranged on the chilled water circulation pipeline in parallel with the main plate heat exchanger.
Optionally, a seventh valve is arranged on an outlet side of the cold supply end of the ice melting plate type heat exchanger.
Optionally, an eighth valve is arranged on the chilled water circulation pipeline in parallel with the ice melting plate heat exchanger.
The invention also provides a use method of the three-stage series connection internal and external ice melting ultralow temperature cold supply equipment, which comprises the following working conditions:
the ice-making machine comprises a first working condition, a double-working-condition main machine for making ice, a double-working-condition main machine, an ice storage device and a solution pump which are in a running state, a second valve and a third valve are opened, a base load main machine, a main machine plate type heat exchanger, an ice melting pump, a base load freezing water pump and a freezing water circulating water pump are stopped, and a first valve, a fourth valve, a fifth valve, a sixth valve, a seventh valve, an eighth valve and a ninth valve are closed;
under a second working condition, the dual-working-condition host machine is used for making and supplying ice, the dual-working-condition host machine, the ice storage device, the host plate type heat exchanger, the solution pump and the chilled water circulating pump are in a running state, the second valve, the fifth valve and the eighth valve are opened, the base load host machine, the ice melting plate type heat exchanger, the ice melting pump and the base load chilled water pump are stopped running, the first valve, the sixth valve, the seventh valve and the ninth valve are closed, and the third valve and the fourth valve are adjusted;
under a third working condition, the dual-working-condition host machine is used for ice making and base load cooling, the dual-working-condition host machine, the base load host machine, the ice storage device, the solution pump, the base load chilled water pump and the chilled water circulating pump are in a running state, the second valve, the third valve, the sixth valve, the eighth valve and the ninth valve are opened, the host plate type heat exchanger, the ice melting plate type heat exchanger and the ice melting pump are stopped running, the first valve, the fourth valve, the fifth valve and the seventh valve are closed,
under a fourth working condition, the dual-working-condition host machine is used for making ice and melting ice for cooling, the dual-working-condition host machine, the ice storage device, the ice melting plate type heat exchanger, the solution pump, the ice melting pump and the chilled water circulating pump are in a running state, the second valve, the third valve, the sixth valve and the seventh valve are opened, the base load host machine, the host plate type heat exchanger and the base load chilled water pump are stopped running, the first valve, the fourth valve, the fifth valve, the eighth valve and the ninth valve are closed,
in the fifth working condition, the base load host supplies cold, the base load host, the base load chilled water pump and the chilled water circulating pump are in the running state, the sixth valve, the eighth valve and the ninth valve are opened, the dual-working condition host, the ice storage device, the host plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump and the ice melting pump are stopped running, the first valve, the second valve, the third valve, the fourth valve, the fifth valve and the seventh valve are closed,
the sixth working condition, the dual working condition main machine supplies cold, the dual working condition main machine, the ice storage device, the main machine plate type heat exchanger, the solution pump and the chilled water circulating pump are in the running state, the second valve, the fourth valve, the fifth valve and the eighth valve are opened, the base load main machine, the ice melting plate type heat exchanger, the ice melting pump and the base load chilled water pump are stopped running, the first valve, the third valve, the sixth valve, the seventh valve and the ninth valve are closed,
under the seventh working condition, the base load host machine and the double working condition host machine supply cold, the double working condition host machine, the base load host machine, the ice storage device, the host plate type heat exchanger, the solution pump, the base load chilled water pump and the chilled water circulating pump are in the running state, the first valve, the fourth valve, the fifth valve, the eighth valve and the ninth valve are opened, the ice melting plate type heat exchanger and the ice melting pump are stopped, the second valve, the third valve, the sixth valve and the seventh valve are closed,
under the eighth working condition, the base load host and the external ice melting and cooling are carried out, the base load host, the ice storage device, the ice melting plate type heat exchanger, the ice melting pump, the base load chilled water pump and the chilled water circulating pump are in the running state, the first valve, the second valve, the third valve, the fourth valve, the fifth valve and the eighth valve are opened, the dual-working-condition host, the base load plate type heat exchanger and the solution pump are stopped running, the sixth valve, the seventh valve and the ninth valve are stopped running,
a ninth working condition, wherein the dual working condition host machine and the external ice melting and cooling are carried out, the dual working condition host machine, the ice storage device, the host plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump, the ice melting pump and the chilled water circulating pump are in the running state, the base load host machine and the base load chilled water pump are stopped running, the first valve, the fourth valve, the fifth valve and the seventh valve are opened, the second valve, the third valve, the sixth valve, the eighth valve and the ninth valve are closed,
in the tenth working condition, the base load host machine, the double working condition host machine and the external ice melting and cooling are carried out, the double working condition host machine, the base load host machine, the ice storage device, the host plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump, the ice melting pump, the base load chilled water pump and the chilled water circulating pump are in the running state, the first valve, the fourth valve, the fifth valve, the seventh valve and the ninth valve are opened, the second valve, the third valve, the sixth valve and the eighth valve are closed,
in the eleventh working condition, the base load host machine and the internal and external ice melting and cooling devices are in an operating state, the base load host machine, the ice storage device, the host machine plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump, the ice melting pump, the base load chilled water pump and the chilled water circulating pump are in an operating state, the dual-working condition host machine stops operating, the second valve, the fourth valve, the fifth valve, the seventh valve and the ninth valve are opened, the first valve, the third valve, the sixth valve and the eighth valve are closed,
a twelfth working condition, a dual-working condition host machine, an internal and external ice melting and cooling, wherein the dual-working condition host machine, the ice storage device, the host plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump, the ice melting pump and the chilled water circulating pump are in a running state, the base load host machine and the base load chilled water pump are stopped running, the fifth valve and the seventh valve are opened, the sixth valve, the eighth valve and the ninth valve are closed, the first valve, the second valve, the third valve and the fourth valve are adjusted,
and under a thirteenth working condition, the base load host, the double-working-condition host and the internal and external ice melting and cooling systems are arranged, the double-working-condition host, the base load host, the ice storage device, the host plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump, the ice melting pump, the base load chilled water pump and the chilled water circulating pump are in an operating state, the fifth valve, the seventh valve and the ninth valve are opened, the sixth valve and the eighth valve are closed, and the first valve, the second valve, the third valve and the fourth valve are adjusted.
Compared with the prior art, the invention has the following technical effects:
1. the refrigerating water can provide larger temperature difference by a three-stage series connection mode, so that the refrigerating efficiency is improved;
2. the ice melting is faster, the ice melting speed is accelerated by the combined use of the internal ice melting and the external ice melting, and the operation energy consumption and the cost of the equipment are reduced while the power peak load shifting rate is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a three-stage series connection internal and external ice-melting ultralow temperature cold supply device of the invention.
Description of reference numerals: 1. a water collector; 2. a base-loaded chilled water pump; 3. a base-loaded host; 4. a water separator; 5. a chilled water circulation pump; 6. a main plate type heat exchanger; 7. melting ice plate heat exchanger; 8. a solution pump; 9. a dual-working-condition host; 10. an ice storage device; 11. a de-icing pump;
v1, first valve; v2, second valve; v3, third valve; v4, fourth valve; v5, fifth valve; v6, sixth valve; v7, seventh valve; v8, eighth valve; v9 and a ninth valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1, the embodiment provides a three-stage series connection internal and external ice melting ultralow temperature cold supply device, which comprises a chilled water circulation system, a base load refrigeration system, a dual-working-condition refrigeration system and an ice melting system; the chilled water circulating system comprises a water collector 1, a water separator 4 and a chilled water circulating pump 5 arranged between the water collector 1 and the water separator 4; the water collector 1, the chilled water circulating pump 5 and the water separator 4 are communicated through a chilled water circulating pipeline; the inlet end and the outlet end of the base load refrigerating system are communicated with the chilled water circulation pipeline through a base load pipeline; the dual-working-condition refrigeration system comprises a main plate type heat exchanger 6, a dual-working-condition main machine 9 and a solution pump 8; the main plate type heat exchanger 6, the dual-working-condition main machine 9 and the solution pump 8 are communicated through pipelines, and the cold supply end of the main plate type heat exchanger 6 is communicated with the chilled water circulation pipeline; the ice melting system comprises an ice melting pump 11 and an ice melting plate type heat exchanger 7; the ice melting pump 11 is communicated with the ice melting plate type heat exchanger 7 through a pipeline; the cold supply end of the ice melting plate type heat exchanger 7 is communicated with the chilled water circulation pipeline; an ice storage device is arranged between the double-working-condition refrigeration system and the ice melting system; the ice storage device 10 comprises an ice storage tank and an ice storage coil pipe; the ice storage coil is arranged in the ice storage tank, the ice storage tank is communicated with the ice melting system, and the ice storage coil is communicated with the dual-working-condition refrigerating system; a first valve V1 is provided in parallel with the ice storage device 10 in the dual-mode refrigeration system.
In this embodiment, the base-load refrigeration system includes a base-load chilled water pump 2, a base-load host 3, and a ninth valve V9 sequentially disposed on the base-load pipeline. The outlet side of the refrigeration side of the ice storage device 10 is provided with a second valve V2. And a third valve V3 is arranged in the dual-working-condition refrigeration system in parallel with the main plate type heat exchanger 6. And a fourth valve V4 is arranged on the inlet side of the refrigerating end of the main plate type heat exchanger 6. And a fifth valve V5 is arranged on the outlet side of the cold supply end of the main plate type heat exchanger 6. And a sixth valve V6 is arranged on the chilled water circulation pipeline in parallel with the main plate type heat exchanger 6. And a seventh valve V7 is arranged on the outlet side of the cold supply end of the ice melting plate type heat exchanger 7. And an eighth valve V8 is arranged on the chilled water circulation pipeline and in parallel connection with the ice melting plate type heat exchanger 7.
In a more specific embodiment, the solution in the dual-condition refrigeration system is a 25% by mass glycol solution. During ice melting, the dual-working-condition refrigeration system adopts an internal ice melting mode; the ice melting system adopts an external ice melting mode to directly wash the outer surface of the ice coil pipe, the ice melting speed is higher, and the ice melting plate type heat exchanger 7 can provide lower temperature output, so that the running time of the dual-working-condition host machine 9 can be reduced, the power consumption of peak power is reduced, and the cooling cost is reduced.
The base-load host machine 3 and the host machine plate heat exchanger 6 in the embodiment are connected in series, so that the temperature of chilled water can be reduced to below 5 ℃, and the ice melting plate heat exchanger 7 can reduce the temperature of the chilled water to below 2 ℃, so that the chilled water can form a larger temperature difference with the return water temperature of the water collector when being output through the water separator 4, and rapid cooling is realized.
Example two:
the embodiment provides a use method of three-stage series connection internal and external ice melting ultralow temperature cold supply equipment based on the first embodiment, which comprises the following working conditions:
the ice-making machine comprises a first working condition, a double-working-condition main machine 9 for making ice, a double-working-condition main machine 9, an ice storage device 10 and a solution pump 8 which are in a running state, a second valve V2 and a third valve V3 are opened, a base-load main machine 3, a main machine plate type heat exchanger 6, an ice melting plate type heat exchanger 7, an ice melting pump 11, a base-load freezing water pump 2 and a freezing water circulating water pump are stopped, and a first valve V1, a fourth valve V4, a fifth valve V5, a sixth valve V6, a seventh valve V7, an eighth valve V8 and a ninth valve V9 are closed;
the ice-making and cold-supplying functions of the dual-working-condition host machine 9 are achieved under the second working condition, the dual-working-condition host machine 9, the ice storage device 10, the host plate type heat exchanger 6, the solution pump 8 and the chilled water circulating pump 5 are in the running state, the second valve V2, the fifth valve V5 and the eighth valve V8 are opened, the base-load host machine 3, the ice-melting plate type heat exchanger 7, the ice-melting pump 11 and the base-load chilled water pump 2 are stopped, the first valve V1, the sixth valve V6, the seventh valve V7 and the ninth valve V9 are closed, and the third valve V3 and the fourth valve V4 are adjusted;
the third working condition, the dual working condition host machine 9 makes ice and supplies cold by base load, the dual working condition host machine 9, the base load host machine 3, the ice storage device 10, the solution pump 8, the base load chilled water pump 2 and the chilled water circulating pump 5 are in the running state, the second valve V2, the third valve V3, the sixth valve V6, the eighth valve V8 and the ninth valve V9 are opened, the host plate heat exchanger 6, the ice melting plate heat exchanger 7 and the ice melting pump 11 are stopped, the first valve V1, the fourth valve V4, the fifth valve V5 and the seventh valve V7 are closed,
in the fourth working condition, the dual-working-condition host machine 9 makes ice and melts ice for cooling, the dual-working-condition host machine 9, the ice storage device 10, the ice melting plate type heat exchanger 7, the solution pump 8, the ice melting pump 11 and the chilled water circulating pump 5 are in the running state, the second valve V2, the third valve V3, the sixth valve V6 and the seventh valve V7 are opened, the base load host machine 3, the host plate type heat exchanger 6 and the base load chilled water pump 2 are stopped, the first valve V1, the fourth valve V4, the fifth valve V5, the eighth valve V8 and the ninth valve V9 are closed,
in the fifth working condition, the base host machine 3 supplies cold, the base host machine 3, the base chilled water pump 2 and the chilled water circulating pump 5 are in a running state, the sixth valve V6, the eighth valve V8 and the ninth valve V9 are opened, the dual-working-condition host machine 9, the ice storage device 10, the host plate heat exchanger 6, the ice melting plate heat exchanger 7, the solution pump 8 and the ice melting pump 11 are stopped, the first valve V1, the second valve V2, the third valve V3, the fourth valve V4, the fifth valve V5 and the seventh valve V7 are closed,
a sixth working condition, wherein the dual-working condition host machine 9 supplies cold, the dual-working condition host machine 9, the ice storage device 10, the host plate type heat exchanger 6, the solution pump 8 and the chilled water circulating pump 5 are in a running state, the second valve V2, the fourth valve V4, the fifth valve V5 and the eighth valve V8 are opened, the base-load host machine 3, the ice melting plate type heat exchanger 7, the ice melting pump 11 and the base-load chilled water pump 2 are stopped, the first valve V1, the third valve V3, the sixth valve V6, the seventh valve V7 and the ninth valve V9 are closed,
the seventh working condition, the base host machine 3 and the dual working condition host machine 9 supply cold, the dual working condition host machine 9, the base host machine 3, the ice storage device 10, the host plate heat exchanger 6, the solution pump 8, the base chilled water pump 2 and the chilled water circulating pump 5 are in the running state, the first valve V1, the fourth valve V4, the fifth valve V5, the eighth valve V8 and the ninth valve V9 are opened, the ice melting plate heat exchanger 7 and the ice melting pump 11 are stopped, the second valve V2, the third valve V3, the sixth valve V6 and the seventh valve V7 are closed,
under the eighth working condition, the base host machine 3 and the external ice melting and cooling device are in the running state, the base host machine 3, the ice storage device 10, the ice melting plate type heat exchanger 7, the ice melting pump 11, the base freezing water pump 2 and the freezing water circulating pump 5 are in the running state, the first valve V1, the second valve V2, the third valve V3, the fourth valve V4, the fifth valve V5 and the eighth valve V8 are opened, the dual-working-condition host machine 9, the host plate type heat exchanger 6 and the solution pump 8 are stopped, the sixth valve V6, the seventh valve V7 and the ninth valve V9 are stopped,
a ninth working condition, wherein a dual working condition host machine 9 and an external ice melting and cooling device are arranged, the dual working condition host machine 9, the ice storage device 10, the host machine plate type heat exchanger 6, the ice melting plate type heat exchanger 7, the solution pump 8, the ice melting pump 11 and the chilled water circulating pump 5 are in a running state, the base load host machine 3 and the base load chilled water pump 2 are stopped, the first valve V1, the fourth valve V4, the fifth valve V5 and the seventh valve V7 are opened, the second valve V2, the third valve V3, the sixth valve V6, the eighth valve V8 and the ninth valve V9 are closed,
the tenth working condition comprises a base host machine 3, a double working condition host machine 9 and an external ice melting and cooling device, wherein the double working condition host machine 9, the base host machine 3, an ice storage device 10, a host plate type heat exchanger 6, an ice melting plate type heat exchanger 7, a solution pump 8, an ice melting pump 11, a base freezing water pump 2 and a freezing water circulating pump 5 are in a running state, a first valve V1, a fourth valve V4, a fifth valve V5, a seventh valve V7 and a ninth valve V9 are opened, a second valve V2, a third valve V3, a sixth valve V6 and an eighth valve V8 are closed,
in the eleventh working condition, the base host machine 3 and the internal and external ice melting and cooling devices are in the running state, the base host machine 3, the ice storage device 10, the host plate type heat exchanger 6, the ice melting plate type heat exchanger 7, the solution pump 8, the ice melting pump 11, the base freezing water pump 2 and the freezing water circulating pump 5 are in the running state, the dual-working-condition host machine 9 is stopped, the second valve V2, the fourth valve V4, the fifth valve V5, the seventh valve V7 and the ninth valve are opened, the first valve V1, the third valve V3, the sixth valve V6 and the eighth valve V8 are closed,
a twelfth working condition, a dual working condition host machine 9, an internal and external ice melting and cold supplying, the dual working condition host machine 9, an ice storage device 10, a host machine plate type heat exchanger 6, an ice melting plate type heat exchanger 7, a solution pump 8, an ice melting pump 11 and a chilled water circulating pump 5 are in a running state, a base load host machine 3 and a base load chilled water pump 2 are stopped, a fifth valve V5 and a seventh valve V7 are opened, a sixth valve V6, an eighth valve V8 and a ninth valve are closed, a first valve V1, a second valve V2, a third valve V3 and a fourth valve V4 are adjusted,
and under a thirteenth working condition, the base host machine 3, the dual-working-condition host machine 9 and the internal and external ice melting and cold supplying are carried out, the dual-working-condition host machine 9, the base host machine 3, the ice storage device 10, the host plate type heat exchanger 6, the ice melting plate type heat exchanger 7, the solution pump 8, the ice melting pump 11, the base freezing water pump 2 and the freezing water circulating pump 5 are in a running state, the fifth valve V5, the seventh valve V7 and the ninth valve V9 are opened, the sixth valve V6 and the eighth valve V8 are closed, and the first valve V1, the second valve V2, the third valve V3 and the fourth valve V4 are adjusted.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A three-stage series connection internal and external ice melting ultralow temperature cold supply device is characterized by comprising a chilled water circulating system, a base load refrigerating system, a dual-working-condition refrigerating system and an ice melting system;
the chilled water circulating system comprises a water collector, a water separator and a chilled water circulating pump arranged between the water collector and the water separator; the water collector, the chilled water circulating pump and the water separator are communicated through a chilled water circulating pipeline;
the inlet end and the outlet end of the base load refrigerating system are communicated with the chilled water circulation pipeline through a base load pipeline;
the dual-working-condition refrigeration system comprises a main plate type heat exchanger, a dual-working-condition main machine and a solution pump; the main plate type heat exchanger, the dual-working-condition main machine and the solution pump are communicated through pipelines, and a cold supply end of the main plate type heat exchanger is communicated with the chilled water circulation pipeline;
the ice melting system comprises an ice melting pump and an ice melting plate type heat exchanger; the ice melting pump is communicated with the ice melting plate type heat exchanger through a pipeline; the cold supply end of the ice melting plate type heat exchanger is communicated with the chilled water circulation pipeline;
an ice storage device is arranged between the double-working-condition refrigeration system and the ice melting system; the ice storage device comprises an ice storage tank and an ice storage coil pipe; the ice storage coil is arranged in the ice storage tank, the ice storage tank is communicated with the ice melting system, and the ice storage coil is communicated with the dual-working-condition refrigerating system;
and a first valve is arranged in the double-working-condition refrigeration system in parallel connection with the ice storage device.
2. The three-stage series internal-external deicing ultra-low temperature cold supply equipment as claimed in claim 1, wherein the base-load refrigeration system comprises a base-load chilled water pump, a base-load host and a ninth valve which are sequentially arranged on the base-load pipeline.
3. The three-stage series internal-external deicing ultra-low temperature cold supply equipment as claimed in claim 1, wherein the outlet side of the refrigerating end of the ice storage device is provided with a second valve.
4. The three-stage series internal-external ice-melting ultra-low temperature cold supply equipment as claimed in claim 1, wherein a third valve is arranged in the dual-working-condition refrigeration system in parallel with the main plate heat exchanger.
5. The three-stage series internal-external ice-melting ultra-low temperature cold supply equipment as claimed in claim 1, wherein a fourth valve is arranged at an inlet side of a refrigerating end of the main plate type heat exchanger.
6. The three-stage series internal-external ice-melting ultralow-temperature cold supply equipment as claimed in claim 1, wherein a fifth valve is arranged on an outlet side of a cold supply end of the main plate type heat exchanger.
7. The three-stage series internal-external deicing ultra-low temperature cold supply equipment as claimed in claim 1, wherein a sixth valve is arranged on the chilled water circulation pipeline in parallel with the main plate heat exchanger.
8. The three-stage series internal-external ice-melting ultralow-temperature cold supply equipment as claimed in claim 1, wherein a seventh valve is arranged on the outlet side of the cold supply end of the ice-melting plate type heat exchanger.
9. The three-stage series internal-external ice-melting ultralow-temperature cold supply equipment as claimed in claim 1, wherein an eighth valve is arranged on the chilled water circulation pipeline in parallel with the ice-melting plate type heat exchanger.
10. The use method of the three-stage series internal and external ice melting ultralow temperature cold supply equipment is characterized by comprising the following working conditions:
the ice-making machine comprises a first working condition, a double-working-condition main machine for making ice, a double-working-condition main machine, an ice storage device and a solution pump which are in a running state, a second valve and a third valve are opened, a base load main machine, a main machine plate type heat exchanger, an ice melting pump, a base load freezing water pump and a freezing water circulating water pump are stopped, and a first valve, a fourth valve, a fifth valve, a sixth valve, a seventh valve, an eighth valve and a ninth valve are closed;
under a second working condition, the dual-working-condition host machine is used for making and supplying ice, the dual-working-condition host machine, the ice storage device, the host plate type heat exchanger, the solution pump and the chilled water circulating pump are in a running state, the second valve, the fifth valve and the eighth valve are opened, the base load host machine, the ice melting plate type heat exchanger, the ice melting pump and the base load chilled water pump are stopped running, the first valve, the sixth valve, the seventh valve and the ninth valve are closed, and the third valve and the fourth valve are adjusted;
under a third working condition, the dual-working-condition host machine is used for ice making and base load cooling, the dual-working-condition host machine, the base load host machine, the ice storage device, the solution pump, the base load chilled water pump and the chilled water circulating pump are in a running state, the second valve, the third valve, the sixth valve, the eighth valve and the ninth valve are opened, the host plate type heat exchanger, the ice melting plate type heat exchanger and the ice melting pump are stopped running, the first valve, the fourth valve, the fifth valve and the seventh valve are closed,
under a fourth working condition, the dual-working-condition host machine is used for making ice and melting ice for cooling, the dual-working-condition host machine, the ice storage device, the ice melting plate type heat exchanger, the solution pump, the ice melting pump and the chilled water circulating pump are in a running state, the second valve, the third valve, the sixth valve and the seventh valve are opened, the base load host machine, the host plate type heat exchanger and the base load chilled water pump are stopped running, the first valve, the fourth valve, the fifth valve, the eighth valve and the ninth valve are closed,
in the fifth working condition, the base load host supplies cold, the base load host, the base load chilled water pump and the chilled water circulating pump are in the running state, the sixth valve, the eighth valve and the ninth valve are opened, the dual-working condition host, the ice storage device, the host plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump and the ice melting pump are stopped running, the first valve, the second valve, the third valve, the fourth valve, the fifth valve and the seventh valve are closed,
the sixth working condition, the dual working condition main machine supplies cold, the dual working condition main machine, the ice storage device, the main machine plate type heat exchanger, the solution pump and the chilled water circulating pump are in the running state, the second valve, the fourth valve, the fifth valve and the eighth valve are opened, the base load main machine, the ice melting plate type heat exchanger, the ice melting pump and the base load chilled water pump are stopped running, the first valve, the third valve, the sixth valve, the seventh valve and the ninth valve are closed,
under the seventh working condition, the base load host machine and the double working condition host machine supply cold, the double working condition host machine, the base load host machine, the ice storage device, the host plate type heat exchanger, the solution pump, the base load chilled water pump and the chilled water circulating pump are in the running state, the first valve, the fourth valve, the fifth valve, the eighth valve and the ninth valve are opened, the ice melting plate type heat exchanger and the ice melting pump are stopped, the second valve, the third valve, the sixth valve and the seventh valve are closed,
under the eighth working condition, the base load host and the external ice melting and cooling are carried out, the base load host, the ice storage device, the ice melting plate type heat exchanger, the ice melting pump, the base load chilled water pump and the chilled water circulating pump are in the running state, the first valve, the second valve, the third valve, the fourth valve, the fifth valve and the eighth valve are opened, the dual-working-condition host, the base load plate type heat exchanger and the solution pump are stopped running, the sixth valve, the seventh valve and the ninth valve are stopped running,
a ninth working condition, wherein the dual working condition host machine and the external ice melting and cooling are carried out, the dual working condition host machine, the ice storage device, the host plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump, the ice melting pump and the chilled water circulating pump are in the running state, the base load host machine and the base load chilled water pump are stopped running, the first valve, the fourth valve, the fifth valve and the seventh valve are opened, the second valve, the third valve, the sixth valve, the eighth valve and the ninth valve are closed,
in the tenth working condition, the base load host machine, the double working condition host machine and the external ice melting and cooling are carried out, the double working condition host machine, the base load host machine, the ice storage device, the host plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump, the ice melting pump, the base load chilled water pump and the chilled water circulating pump are in the running state, the first valve, the fourth valve, the fifth valve, the seventh valve and the ninth valve are opened, the second valve, the third valve, the sixth valve and the eighth valve are closed,
in the eleventh working condition, the base load host machine and the internal and external ice melting and cooling devices are in an operating state, the base load host machine, the ice storage device, the host machine plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump, the ice melting pump, the base load chilled water pump and the chilled water circulating pump are in an operating state, the dual-working condition host machine stops operating, the second valve, the fourth valve, the fifth valve, the seventh valve and the ninth valve are opened, the first valve, the third valve, the sixth valve and the eighth valve are closed,
a twelfth working condition, a dual-working condition host machine, an internal and external ice melting and cooling, wherein the dual-working condition host machine, the ice storage device, the host plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump, the ice melting pump and the chilled water circulating pump are in a running state, the base load host machine and the base load chilled water pump are stopped running, the fifth valve and the seventh valve are opened, the sixth valve, the eighth valve and the ninth valve are closed, the first valve, the second valve, the third valve and the fourth valve are adjusted,
and under a thirteenth working condition, the base load host, the double-working-condition host and the internal and external ice melting and cooling systems are arranged, the double-working-condition host, the base load host, the ice storage device, the host plate type heat exchanger, the ice melting plate type heat exchanger, the solution pump, the ice melting pump, the base load chilled water pump and the chilled water circulating pump are in an operating state, the fifth valve, the seventh valve and the ninth valve are opened, the sixth valve and the eighth valve are closed, and the first valve, the second valve, the third valve and the fourth valve are adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110973215.1A CN113739294A (en) | 2021-08-24 | 2021-08-24 | Three-stage series connection internal and external ice melting ultralow temperature cold supply equipment and use method |
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| CN202110973215.1A CN113739294A (en) | 2021-08-24 | 2021-08-24 | Three-stage series connection internal and external ice melting ultralow temperature cold supply equipment and use method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115574392A (en) * | 2022-11-02 | 2023-01-06 | 香港华艺设计顾问(深圳)有限公司 | External ice melting open type primary pump system, cold supply method, medium and equipment thereof |
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2021
- 2021-08-24 CN CN202110973215.1A patent/CN113739294A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115574392A (en) * | 2022-11-02 | 2023-01-06 | 香港华艺设计顾问(深圳)有限公司 | External ice melting open type primary pump system, cold supply method, medium and equipment thereof |
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