CN209386603U - Lithium bromide and the big temperature-difference refrigerating device of ice storage - Google Patents
Lithium bromide and the big temperature-difference refrigerating device of ice storage Download PDFInfo
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- CN209386603U CN209386603U CN201821640925.2U CN201821640925U CN209386603U CN 209386603 U CN209386603 U CN 209386603U CN 201821640925 U CN201821640925 U CN 201821640925U CN 209386603 U CN209386603 U CN 209386603U
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- Prior art keywords
- heat exchanger
- ice
- water
- lithium bromide
- cold
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model discloses a kind of lithium bromides and the big temperature-difference refrigerating device of ice storage, including lithium bromide host, cold accumulating device by ice, First Heat Exchanger, the second heat exchanger；The cold end of the water inlet connection cold accumulating device by ice of the primary side of First Heat Exchanger, the cold end of the water inlet connection lithium bromide host of the secondary side of First Heat Exchanger, the water outlet of the secondary side of First Heat Exchanger connect chilled water water supplying pipe；The hot end of the water outlet connection cold accumulating device by ice of the primary side of second heat exchanger, the water outlet of the secondary side of the second heat exchanger connect chilled water water supplying pipe；The water outlet of the primary side of First Heat Exchanger is connect with the water inlet of the primary side of the second heat exchanger；The water inlet of the secondary side of second heat exchanger connects chilled water return pipe with the hot end of lithium bromide host.The utility model has the advantages that: lithium bromide cooling supply is cooled down twice using cold accumulating device by ice as low temperature cold source, the two meets stable big temperature-difference refrigerating demand in a manner of cooling supply of connecting.
Description
Technical field
The utility model belongs to refrigeration technology field, and in particular to a kind of lithium bromide and the big temperature-difference refrigerating device of ice storage.
Background technique
Lithium bromide host is a kind of device that can be freezed using low-head thermal energy, exhaust gas, waste heat and solar energy etc., bromination
Lithium Refrigeration Technique is conducive to the comprehensive utilization of heat source, improves the energy utilization rate of system, especially in large-scale energy centre, multiplicity
Energy source type determine that lithium bromide host can occupy a tiny space always.
But existing lithium bromide host can not provide and guarantee lower chilled water temperature, the refrigeration effect of the big temperature difference
It can only be realized by mixing water with other cold sources, be unable to accurately control temperature, fluctuation is very big, may be unable to satisfy actual second level and change
Heat demand is applied in large-scale energy centre project and is limited.
Summary of the invention
The purpose of this utility model is according in place of above-mentioned the deficiencies in the prior art, providing a kind of lithium bromide and ice storage is big
Temperature-difference refrigerating device, the refrigerating plant is by carrying out secondary drop to lithium bromide cooling supply as low temperature cold source using cold accumulating device by ice
Temperature, the two meet stable big temperature-difference refrigerating demand in a manner of cooling supply of connecting.
The utility model aim realization is completed by following technical scheme:
A kind of lithium bromide and the big temperature-difference refrigerating device of ice storage, including lithium bromide host, cold accumulating device by ice, the first heat exchange
Device, the second heat exchanger；The water inlet of the primary side of the First Heat Exchanger connects the cold end of the cold accumulating device by ice, and described first
The water inlet of the secondary side of heat exchanger connects the cold end of the lithium bromide host, the water outlet of the secondary side of the First Heat Exchanger
Connect chilled water water supplying pipe；The water outlet of the primary side of second heat exchanger connects the hot end of the cold accumulating device by ice, described
The water outlet of the secondary side of second heat exchanger connects the chilled water water supplying pipe；The water outlet of the primary side of the First Heat Exchanger
It is connect with the water inlet of the primary side of second heat exchanger；The water inlet of the secondary side of second heat exchanger and the bromination
The hot end of lithium host connects chilled water return pipe.
The cold accumulating device by ice includes Double-working-condition host, Ice storage coiled pipe, and the hot end of the Double-working-condition host connects the ice
The cold end in the hot end of cold-storage device, the Double-working-condition host connects the water inlet of the Ice storage coiled pipe, the cold accumulating device by ice
Cold end is separately connected the water outlet of the Ice storage coiled pipe and the cold end of the Double-working-condition host.
The chilled water pump of certain frequency is provided on the hot end of the lithium bromide host.
The water inlet of the primary side of the First Heat Exchanger is provided with the ethylene glycol heat exchange pump of a frequency conversion.
The hot end of the cold accumulating device by ice is provided with the glycol system pump of a frequency conversion.
The cold end of the cold accumulating device by ice is sequentially connected the water inlet and water outlet of the primary side of the First Heat Exchanger.
The utility model has the advantages that: lithium bromide chiller outlet temperature can be down to design temperature, reach low temperature and send water
With the function of big temperature difference cooling supply, while guaranteeing the operational efficiency of lithium bromide host；Low temperature send water to can effectively improve secondary heat exchange
Efficiency, end can carry out cold air distribution, improve air-conditioning quality；The refrigeration effect of the big temperature difference can be effectively reduced conveying energy consumption with
The investment of equipment pipeline.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of lithium bromide and the big temperature-difference refrigerating device of ice storage in the utility model embodiment.
Specific embodiment
The feature of the utility model and other correlated characteristics are made further specifically by embodiment below in conjunction with attached drawing
It is bright, in order to the understanding of technical staff of the same trade:
Such as Fig. 1, in figure respectively label be respectively as follows: lithium bromide host 1, Double-working-condition host 2, Ice storage coiled pipe 3, First Heat Exchanger 4,
Second heat exchanger 5, chilled water pump 6, ethylene glycol heat exchange pump 7, glycol system pump 8, chilled water return pipe 9, chilled water water supplying pipe
10。
Embodiment: as shown in Figure 1, the present embodiment leads to more particularly to a kind of lithium bromide and the big temperature-difference refrigerating device of ice storage
It crosses and is cooled down twice using the chilled water that cold accumulating device by ice generates lithium bromide host 1 as low temperature cold source, the two is to connect
The mode of cooling supply meets stable big temperature-difference refrigerating demand.
As shown in Figure 1, the lithium bromide and the big temperature-difference refrigerating device of ice storage in the present embodiment include lithium bromide host 1, ice
Cold-storage device, First Heat Exchanger 4, the second heat exchanger 5.When lithium bromide host 1 is freezed, the leaving water temperature of cold end is higher,
In order to reduce the leaving water temperature of lithium bromide host 1, one group of pipeline is arranged in the refrigerating fluid inlet and outlet in cold accumulating device by ice, by low temperature
Ethylene glycol and the water outlet of lithium bromide host 1 carry out secondary heat exchange, so that the cold water to the cold side outlet of lithium bromide host 1 carries out
Reducing temperature twice meets the big temperature difference of pipe network, low temperature send the requirement of water.First Heat Exchanger 4 and the second heat exchanger 5 are all made of plate-type heat-exchange
Device.
As shown in Figure 1, in the present embodiment, the cold end of the water inlet connection cold accumulating device by ice of the primary side of First Heat Exchanger 4,
The cold end of the water inlet connection lithium bromide host 1 of the secondary side of First Heat Exchanger 4, the water outlet of the secondary side of First Heat Exchanger 4
Connect chilled water water supplying pipe 10；The hot end of the water outlet connection cold accumulating device by ice of the primary side of second heat exchanger 5, the second heat exchanger
The water outlet of 5 secondary side connects chilled water water supplying pipe 10；The water outlet of the primary side of First Heat Exchanger 4 and the second heat exchanger 5
Primary side water inlet connection；The water inlet of the secondary side of second heat exchanger 5 connects chilled water with the hot end of lithium bromide host 1
Return pipe 9.The chilled water pump 6 of certain frequency is provided on the hot end of lithium bromide host 1.The primary side of First Heat Exchanger 4 enters water
Mouth is provided with the ethylene glycol heat exchange pump 7 of a frequency conversion.The hot end of cold accumulating device by ice is provided with the glycol system pump 8 of a frequency conversion.
As shown in Figure 1, the chilled water of lithium bromide refrigerating is completed cold by above-mentioned second level cooling system in the present embodiment
But, wherein the return water of 9 end higher temperature of chilled water return pipe carries out primary into lithium bromide host 1 by chilled water pump 6
Cooling, chilled water pump 6 are to determine frequency water pump to guarantee requirement of the lithium bromide host 1 to flow, so that from lithium bromide host 1
The temperature of the chilled water of output is in steady state, and the chilled water after completing the cooling for the first time of lithium bromide host 1 enters the first heat exchange
Device 4, water temperature is further reduced, and after the requirement for reaching the water temperature of pipe network, is sent into end system, that is, above-mentioned freezing
In water water supplying pipe 10, in this course, between 1 hot end of lithium bromide host and cold end and the primary side of the first heat-exchanger rig
Heat transfer medium is water.Lithium bromide host 1 is also connected with cooling tower and gas-distributing cylinder.
As shown in Figure 1, cold accumulating device by ice includes Double-working-condition host 2, Ice storage coiled pipe 3, Double-working-condition host 2 in the present embodiment
Hot end connection cold accumulating device by ice hot end, Double-working-condition host 2 cold end connection Ice storage coiled pipe 3 water inlet, cold accumulating device by ice
Cold end be separately connected the water outlet of Ice storage coiled pipe 3 and the cold end of Double-working-condition host 2.Cold accumulating device by ice is using ethylene glycol as biography
Thermal medium is freezed and is exchanged heat.The cold end of cold accumulating device by ice is sequentially connected the water inlet of the primary side of First Heat Exchanger 4 and goes out
The mouth of a river.It is ethylene glycol in the primary side of First Heat Exchanger 4 and the second heat exchanger 5, the secondary side of the second heat exchanger 5 is then freezing
Water.Double-working-condition host 2 is also connected with a cooling tower.The company of being provided between the water inlet and water outlet of the primary side of second heat exchanger 5
It threads a pipe, valve is provided on connecting pipe, the water inlet of the primary side of First Heat Exchanger 4 is provided with valve, First Heat Exchanger 4
Secondary side water outlet be arranged valve, the secondary side of the second heat exchanger 5 water outlet setting valve, the second heat exchanger 5 one
Valve is arranged in the water outlet of secondary side, and valve is provided on the water outlet of Ice storage coiled pipe 3, and 2 cold end of Double-working-condition host and ice storage fill
Valve is provided in the connecting pipe for the cold end set.
As shown in Figure 1, cold accumulating device by ice is run using Internal melt system, in high load capacity air conditioning work in the present embodiment
Under condition, the ethylene glycol in ethylene glycol return water i.e. cold accumulating device by ice hot end enters double after bypassing and lead directly to by the second heat exchanger 5
Operating condition host 2 cools down, and the ethylene glycol after cooling enters Ice storage coiled pipe 3 and is cooled down twice.In order to guarantee glycol system
The balance of pressure and meet lithium bromide reducing temperature twice, on 3 water outlet of Ice storage coiled pipe, using the first heat exchange of series model setting
Device 4 causes to enter the water outlet that the ethylene glycol that First Heat Exchanger 4 exchanges heat still returns to Ice storage coiled pipe 3, so that second two
The problem of alcohol heat exchange pump 7 and glycol system pump 8 are in series model, and imbalance of pressure is not present in above-mentioned pipeline connection type, and
The flow in Ice storage coiled pipe 3 is not will increase.The effect of ethylene glycol heat exchange pump 7 is the ethylene glycol that control enters First Heat Exchanger 4
Measure and then control the heat transfer effect of First Heat Exchanger 4.Ethylene glycol heat exchange pump 7, glycol system pump 8 are frequency conversion, and ethylene glycol changes
Heat pump 7 is to adjust its frequency according to the outlet temperature of the secondary side of First Heat Exchanger 4, simultaneously as part ethylene glycol solution passes through
The raising of 4 temperature of First Heat Exchanger is crossed, the ethylene glycol solution temperature drift into the second heat exchanger 5, therefore the second heat exchanger 5 are caused
Heat exchange area also need accordingly slightly to increase.
As shown in Figure 1, the water temperature of the chilled water of chilled water return pipe 9 is 12 DEG C in the present embodiment, second is respectively enterd
The water inlet of the secondary side of heat exchanger 5 and the hot end of lithium bromide host 1.The temperature of chilled water is 6 after lithium bromide host 1 freezes
DEG C, temperature rises to when the water inlet for the secondary side that the chilled water of 1 cold end of lithium bromide host enters First Heat Exchanger 4 by pipeline
6.5℃.By the heat exchange of First Heat Exchanger 4, the chilled water that lithium bromide host 1 exports is cooled to 5 DEG C and is passed through chilled water water supply again
In pipe 10.By the heat exchange of the second heat exchanger 5, so that the chilled water temperature of the water outlet of the secondary side of the second heat exchanger 5 is straight
It connects and is down to 5 DEG C, then enter chilled water water supplying pipe 10 with the chilled water convergence of above-mentioned reducing temperature twice.Cold accumulating device by ice is cold simultaneously
The temperature for holding the low-temperature glycol of output is 3-3.5 DEG C, and ethylene glycol enters the one of First Heat Exchanger 4 by ethylene glycol heat exchange pump 7
Secondary side water inlet temperature rises to 3.3 DEG C, after the heat exchange of First Heat Exchanger 4, the ethylene glycol of the primary side water outlet of First Heat Exchanger 4
Temperature is 5 DEG C.The ethylene glycol directly exported in 5 DEG C of ethylene glycol and cold accumulating device by ice converges, into the primary side of the second heat exchanger 5
The temperature of entrance is 3.7 DEG C, and after the heat exchange of the second heat exchanger 5, the ethylene glycol temperature of the primary side water outlet of the second heat exchanger 5 is
11 DEG C, final ethylene glycol carries out cooling recycling by the hot end of 8 return cold accumulating device by ice of glycol system pump.
The present embodiment, which has the advantages that, to be down to design temperature for lithium bromide chiller outlet temperature, reach low temperature and send
The function of water and big temperature difference cooling supply, while guaranteeing the operational efficiency of lithium bromide host 1.Low temperature send water to can effectively improve second level and changes
The thermal efficiency, end can carry out cold air distribution, improve air-conditioning quality.Conveying energy consumption can be effectively reduced in the refrigeration effect of the big temperature difference
It is invested with equipment pipeline.
Claims (6)
1. a kind of lithium bromide and the big temperature-difference refrigerating device of ice storage, which is characterized in that including lithium bromide host, cold accumulating device by ice,
First Heat Exchanger, the second heat exchanger；The water inlet of the primary side of the First Heat Exchanger connects the cold end of the cold accumulating device by ice,
The water inlet of the secondary side of the First Heat Exchanger connects the cold end of the lithium bromide host, the secondary side of the First Heat Exchanger
Water outlet connect chilled water water supplying pipe；The water outlet of the primary side of second heat exchanger connects the heat of the cold accumulating device by ice
The water outlet at end, the secondary side of second heat exchanger connects the chilled water water supplying pipe；The primary side of the First Heat Exchanger
Water outlet connect with the water inlet of the primary side of second heat exchanger；The water inlet of the secondary side of second heat exchanger and
The hot end of the lithium bromide host connects chilled water return pipe.
2. a kind of lithium bromide according to claim 1 and the big temperature-difference refrigerating device of ice storage, which is characterized in that the ice stores
Device for cooling includes Double-working-condition host, Ice storage coiled pipe, and the hot end of the Double-working-condition host connects the hot end of the cold accumulating device by ice, institute
The cold end for stating Double-working-condition host connects the water inlet of the Ice storage coiled pipe, and the cold end of the cold accumulating device by ice is separately connected the storage
The cold end of the water outlet of melt ice on coil and the Double-working-condition host.
3. a kind of lithium bromide according to claim 1 and the big temperature-difference refrigerating device of ice storage, which is characterized in that the bromination
The chilled water pump of certain frequency is provided on the hot end of lithium host.
4. a kind of lithium bromide according to claim 1 and the big temperature-difference refrigerating device of ice storage, which is characterized in that described first
The water inlet of the primary side of heat exchanger is provided with the ethylene glycol heat exchange pump of a frequency conversion.
5. a kind of lithium bromide according to claim 1 and the big temperature-difference refrigerating device of ice storage, which is characterized in that the ice stores
The hot end of device for cooling is provided with the glycol system pump of a frequency conversion.
6. a kind of lithium bromide according to claim 1 and the big temperature-difference refrigerating device of ice storage, which is characterized in that the ice stores
The cold end of device for cooling is sequentially connected the water inlet and water outlet of the primary side of the First Heat Exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821640925.2U CN209386603U (en) | 2018-10-10 | 2018-10-10 | Lithium bromide and the big temperature-difference refrigerating device of ice storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821640925.2U CN209386603U (en) | 2018-10-10 | 2018-10-10 | Lithium bromide and the big temperature-difference refrigerating device of ice storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209386603U true CN209386603U (en) | 2019-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821640925.2U Expired - Fee Related CN209386603U (en) | 2018-10-10 | 2018-10-10 | Lithium bromide and the big temperature-difference refrigerating device of ice storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209386603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140822A (en) * | 2018-10-10 | 2019-01-04 | 上海华电源牌环境工程有限公司 | Lithium bromide and the big temperature-difference refrigerating device of ice storage |
-
2018
- 2018-10-10 CN CN201821640925.2U patent/CN209386603U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140822A (en) * | 2018-10-10 | 2019-01-04 | 上海华电源牌环境工程有限公司 | Lithium bromide and the big temperature-difference refrigerating device of ice storage |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190913 Termination date: 20211010 |