CN206875639U - A kind of comprehensive central refrigerating system of office building - Google Patents
A kind of comprehensive central refrigerating system of office building Download PDFInfo
- Publication number
- CN206875639U CN206875639U CN201720574322.6U CN201720574322U CN206875639U CN 206875639 U CN206875639 U CN 206875639U CN 201720574322 U CN201720574322 U CN 201720574322U CN 206875639 U CN206875639 U CN 206875639U
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- water
- cold
- refrigeration
- office building
- electricity
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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
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model discloses a kind of comprehensive central refrigerating system of office building, including：With cold end coil pipe, water-heating cooling mechanism, electric refrigerating machine structure, water cold storage mechanism, circulating water pool and cooling tower.The utility model set hot water lithium bromide absorbing refrigeration, electric refrigeration modes refrigeration, water cold storage mode these three refrigeration modes, are freezed with cold demand in different periods according to office building, the refrigeration cost of office building are greatly reduced.
Description
Technical field
It the utility model is related to office building refrigeration technology field, more particularly to a kind of comprehensive central refrigerating system of office building
System.
Background technology
Electricity refrigeration, it is by the use of electricity as power source drive refrigeration machine, freon refrigerant evaporates absorption in evaporator and carried
The heat of water as refrigerant is freezed, and the freon moist steam after evaporation endothermic is compressed by the compressor into high temperature and high pressure gas, through water
Become liquid after cool condenser condensation, expanded valve throttling enters evaporator and recycled, so as to produce chilled water.
Water-heating cooling, it is that water vapour passes through after the water in lithium-bromide solution is heated into water vapour by thermal source heating evaporation device
It is changed into liquid after condenser and choke valve, the absorber entered back under vacuum state, significantly decompression absorbs aqueous water
The heat of outside air-conditioner circulating water and evaporate, reach the effect of refrigeration.
Cold-storage, it is in the refrigeration duty very low period, the cold being had more than needed using refrigeration system makes cool storage medium become low temperature
Chilled water, using the sensible heat and latent heat property of cool storage medium, cold is stored, in the refrigeration duty higher period, storage
The cold deposited discharges, to meet the cold demand of the use of office building.
Electric refrigeration system is simple, is widely used, and water-heating cooling technology and cold-storage need specific corollary system and built empty
Between, application scenario is less.In larger office place, freezed more using pure electricity, the electricity charge synchronous with power network peak period with cool time
Price is high.The power network valley period, electricity price is relatively low, but power load is less, causes electric power resource to waste.Possess boiler as south
Enterprise, low-quality heat source utilization efficiency is low, and office building office space is big, with the cool time phase grow, refrigeration cost it is higher, reduce
The economic benefit of enterprise.
Utility model content
In order to solve drawbacks described above present in prior art, the utility model proposes one kind can be greatly reduced refrigeration cost
The comprehensive central refrigerating system of office building.
The technical solution adopted in the utility model is to design a kind of comprehensive central refrigerating system of office building, including：With cold
End plate pipe, water-heating cooling mechanism, electric refrigerating machine structure, water cold storage mechanism, circulating water pool and cooling tower.
Water-heating cooling mechanism includes：The hot water lithium bromide absorbing connected by the cold chilled water pump of bromine with cold end coil pipe
Refrigeration unit, the boiler connected by hot water circulating pump with the hot water lithium bromide absorbing refrigeration unit, hot-water type bromination
Lithium-absorbing formula refrigeration unit is connected with circulating water pool and cooling tower respectively by the cold cooling water pump of bromine.
Electric refrigerating machine structure includes：The electricity refrigeration handpiece Water Chilling Units connected by the cold chilled water pump of electricity with cold end coil pipe, electricity system
Cold handpiece Water Chilling Units are connected with circulating water pool and cooling tower respectively by the cold cooling water pump of electricity.
Water cold storage mechanism includes：Made respectively with hot water lithium bromide absorbing refrigeration unit and electricity by cold-storage chilled water pump
The plate type heat exchanger of cold handpiece Water Chilling Units connection, the cold-storage water pot being connected by cold-storage water pump with plate type heat exchanger.
Preferably, an expansion tank is also connected with cold end coil pipe.
Water-heating cooling mechanism, electric refrigerating machine structure and water cold storage mechanism are both connected on electrical power control cabinet and thermal control process cabinet,
Electrical power control cabinet and thermal control process cabinet are water-heating cooling mechanism, electric refrigerating machine structure and water cold storage mechanism provide electrical source of power and signal
Control.
Compared with prior art, the utility model set hot water lithium bromide absorbing refrigeration, electric refrigeration modes refrigeration,
These three refrigeration modes of water cold storage mode, freezed according to office building in different periods with cold demand, optimize each system
Input and combined situation, it is determined that preferred hot water lithium bromide absorbing refrigeration unit of opening is principle, cold accumulation system release it is cold with
Cold-storage is adjusted according to demand, and electricity refrigeration handpiece Water Chilling Units are used in paddy electricity period cold-storage and in hot water lithium bromide absorbing system
Used when cold group can not put into operation as standby unit, improve the reliability of refrigeration, balance the peak valley of refrigeration duty, make entirely to make
Cooling system has bigger flexibility, convenience and applicability.Using water-heating cooling and paddy electricity cold-storage, when reduction is freezed using peak electricity
Between, the cost of refrigeration is reduced, makes whole refrigeration system more added with economy and replicability.
Brief description of the drawings
The utility model is described in detail with reference to embodiment and accompanying drawing, wherein：
Fig. 1 is connection structure diagram of the present utility model.
Embodiment
As shown in figure 1, the utility model proposes the comprehensive central refrigerating system of office building, including：With cold end coil pipe, cold
Freeze jellyfish pipe, water-heating cooling mechanism, electric refrigerating machine structure, water cold storage mechanism, circulating water pool and cooling tower.
Water-heating cooling mechanism includes：Hot water lithium bromide absorbing refrigeration unit and boiler, electric refrigerating machine structure include：Electricity system
Cold handpiece Water Chilling Units, water cold storage mechanism include：Plate type heat exchanger and cold-storage water pot.
Hot-water line is provided with boiler, high-temperature-hot-water, hot water lithium bromide absorbing refrigeration unit and heat are produced in hot-water line
Water pipe connects, and hot-water line connection is provided with hot water circulating pump, and hot water circulating pump extracts certain pressure and the high temperature of temperature in boiler
Delivery to hot water lithium bromide absorbing refrigeration unit, high-temperature-hot-water drives hot water lithium bromide absorbing refrigeration unit
The evaporation and absorption of lithium bromide water solution, it is internally formed in hot water lithium bromide absorbing refrigeration unit and circulates and produce low temperature cold
Freeze water to be freezed, high-temperature-hot-water temperature reheats after reducing further through hot water circuit pumped back boiler.
Circulating water pool is provided with circulating water pipe, and low-temperature cooling water, hot water lithium bromide absorbing refrigeration are produced in circulating water pipe
Unit is connected by the cold cooling water pump of bromine with circulating water pipe and cooling tower, and electricity refrigeration handpiece Water Chilling Units are by the cold cooling water pump of electricity with following
Ring water pipe connects with cooling tower, and the low-temperature cooling water that circulating water pipe extracts circulating water pool is cold by the cold cooling water pump of bromine and electricity respectively
Cooling water is delivered to two refrigeration units, meets condenser cooling requirement inside two refrigeration units, then cold by bromine respectively
But the high-temperature cooling water that work(is finished in two refrigeration units is delivered to cooling tower by water pump and the cold cooling water pump of electricity, is followed after being cooled down
Ring utilizes.
It is connected to cold end coil pipe in chilled water main pipe, hot water lithium bromide absorbing refrigeration unit passes through the cold chilled water of bromine
Pump is connected with chilled water main pipe, and electricity refrigeration handpiece Water Chilling Units are connected by the cold chilled water pump of electricity with chilled water main pipe, two refrigeration machines
Group produces low temperature chilled water, and low temperature chilled water is delivered to use by the cold chilled water pump of bromine and the cold chilled water pump of electricity by chilled water main pipe
Cold end coil pipe, the cold of low temperature chilled water is extracted to meet the cold demand of the use of office building with cold end coil pipe.
Plate type heat exchanger is connected by cold-storage chilled water pump with chilled water main pipe, and plate type heat exchanger is by cold-storage water pump with storing
Cold water tank connects, cold-storage water pot storage low temperature chilled water.Hot water lithium bromide absorbing refrigeration unit, electricity refrigeration handpiece Water Chilling Units and
Plate type heat exchanger is both connected in chilled water main pipe, and the low temperature chilled water that refrigeration unit is produced is delivered to by chilled water pump uses cold end
Coil pipe, cold air is provided for office building, on one's own time store flap portion cold by plate type heat exchanger and cold-storage water pump
In cold-storage water pot, when refrigeration unit stops refrigeration and refrigeration duty is relatively low, the low temperature chilled water in cold-storage water pot passes through board-like
Heat exchanger and cold-storage water pump meet the cold demand of use of office building, water-heating cooling mechanism, electricity freeze to user terminal coil pipe released cold quantity
The chilled water of mechanism and water cold storage mechanism uses in refrigeration system inner loop.
Preferably, an expansion tank is also connected with cold end coil pipe, expansion tank supplements loss to cold end coil pipe in real time
Water and the pressure for stably using cold end coil pipe, to ensure the operation of refrigeration system continuous and effective.Water-heating cooling mechanism, electric refrigerating machine
Structure and water cold storage mechanism are both connected on electrical power control cabinet and thermal control process cabinet, and electrical power control cabinet and thermal control process cabinet are hot water system
Cold structure, electric refrigerating machine structure and water cold storage mechanism provide electrical source of power and signal control so that refrigeration system according to office building not
Realize that automatic control and adjustment is run with cold demand with the period.
In one embodiment, office building refrigeration duty is 981kW（280 RT）, refrigeration system set 1 separate unit refrigerating capacity as
350kW（100RT）Hot water lithium bromide absorbing refrigeration unit（By 5 DEG C of design selections of water outlet）It is 350kW with 1 refrigerating capacity
（100RT）Electricity refrigeration handpiece Water Chilling Units（By 5 DEG C of design selections of water outlet, and 4 DEG C of water can be provided）.Hot water lithium bromide absorbing system
Cold group driving heat source is provided by boiler, and supply and return water temperature is 120/68 DEG C, and electricity refrigeration handpiece Water Chilling Units refrigerant medium uses
R134a.1 cold-storage water pot is set outside refrigeration system room, and separate unit water pot water capacity is 900m3, and separate unit cold storage capacity is
1300RTh.The cold chilled water pump of bromine corresponding to refrigeration unit（1）With the cold chilled water pump of electricity（1）Flow is 66m3/h, lift
20m；Chilled water pump is stored corresponding to plate type heat exchanger（1）Flow is 75m3/h, lift 20m.Water cold storage mechanism sets 1 frequency conversion and stored
Cold water pump discharge is 75m3/h, lift 18m.Cold-storage and release cold operating mode and rely on by two kinds of operating modes of valve transfer, during cold-storage according to
By the leaving water temperature frequency conversion of cold-storage water pot side, the leaving water temperature frequency conversion of office building side is relied on when releasing cold.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (3)
- A kind of 1. comprehensive central refrigerating system of office building, it is characterised in that including：With cold end coil pipe, chilled water main pipe, hot water Refrigeration mechanism, electric refrigerating machine structure, water cold storage mechanism, circulating water pool and cooling tower；It is described to be connected with cold end coil pipe with the chilled water main pipe；The water-heating cooling mechanism includes：The hot water lithium bromide connected by the cold chilled water pump of bromine with the chilled water main pipe is inhaled Receipts formula refrigeration unit, the boiler connected by hot water circulating pump with the hot water lithium bromide absorbing refrigeration unit, the heat Water type lithium bromide absorption refrigerating set is connected with the circulating water pool and cooling tower respectively by the cold cooling water pump of bromine；The electric refrigerating machine structure includes：The electricity refrigeration handpiece Water Chilling Units connected by the cold chilled water pump of electricity with the chilled water main pipe, The electricity refrigeration handpiece Water Chilling Units are connected with the circulating water pool and cooling tower respectively by the cold cooling water pump of electricity；The water cold storage mechanism includes：The plate type heat exchanger that is connected by cold-storage chilled water pump with the chilled water main pipe, pass through The cold-storage water pot that cold-storage water pump is connected with the plate type heat exchanger.
- 2. the comprehensive central refrigerating system of office building as claimed in claim 1, it is characterised in that the cold end coil pipe also connects A logical expansion tank.
- 3. the comprehensive central refrigerating system of office building as claimed in claim 1 or 2, it is characterised in that the water-heating cooling machine Structure, electric refrigerating machine structure and water cold storage mechanism are both connected on electrical power control cabinet and thermal control process cabinet, the electrical power control cabinet and heat Work switch board is water-heating cooling mechanism, electric refrigerating machine structure and water cold storage mechanism provide electrical source of power and signal control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720574322.6U CN206875639U (en) | 2017-05-23 | 2017-05-23 | A kind of comprehensive central refrigerating system of office building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720574322.6U CN206875639U (en) | 2017-05-23 | 2017-05-23 | A kind of comprehensive central refrigerating system of office building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206875639U true CN206875639U (en) | 2018-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720574322.6U Expired - Fee Related CN206875639U (en) | 2017-05-23 | 2017-05-23 | A kind of comprehensive central refrigerating system of office building |
Country Status (1)
| Country | Link |
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| CN (1) | CN206875639U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595102A (en) * | 2019-09-09 | 2019-12-20 | 中国电力工程顾问集团西南电力设计院有限公司 | Multipurpose regional cooling system and control method |
| CN113432378A (en) * | 2021-06-16 | 2021-09-24 | 长江存储科技有限责任公司 | Cooling system |
| CN114061171A (en) * | 2021-11-05 | 2022-02-18 | 红塔烟草(集团)有限责任公司 | Lithium bromide refrigerator system with cooling water temperature control device |
-
2017
- 2017-05-23 CN CN201720574322.6U patent/CN206875639U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595102A (en) * | 2019-09-09 | 2019-12-20 | 中国电力工程顾问集团西南电力设计院有限公司 | Multipurpose regional cooling system and control method |
| CN113432378A (en) * | 2021-06-16 | 2021-09-24 | 长江存储科技有限责任公司 | Cooling system |
| CN114061171A (en) * | 2021-11-05 | 2022-02-18 | 红塔烟草(集团)有限责任公司 | Lithium bromide refrigerator system with cooling water temperature control device |
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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: 20180112 Termination date: 20190523 |