CN208108386U - A kind of region central cooling heating system - Google Patents
A kind of region central cooling heating system Download PDFInfo
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- CN208108386U CN208108386U CN201821674079.6U CN201821674079U CN208108386U CN 208108386 U CN208108386 U CN 208108386U CN 201821674079 U CN201821674079 U CN 201821674079U CN 208108386 U CN208108386 U CN 208108386U
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- heat exchanger
- plate heat
- pipe
- water inlet
- fan coil
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- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
The utility model discloses a kind of region central cooling heating systems, it is connected between Regional Energy station and the cold source import of the first plate heat exchanger by the first water inlet pipe, is connected between the cold source outlet and the cold source import of the second plate heat exchanger of the first plate heat exchanger by the first return pipe；The heat source import of first plate heat exchanger is connect by the second water inlet pipe with new blower, and the thermal source outlet of the first plate heat exchanger is connect by the second return pipe with new blower；The heat source import of second plate heat exchanger is connect by third water inlet pipe with fan coil units, and the thermal source outlet of the second plate heat exchanger is connect by third return pipe with fan coil units；The cold source outlet of second plate heat exchanger is connect by the 4th return pipe with Regional Energy station.The temperature of cold source after utilizing by primary energy is exactly sink temperature needed for the second plate heat exchanger, is designed in this way, and the first and last end system temperature difference is bigger, realizes the cascade utilization of heat conveying, more energy efficient.
Description
Technical field
The utility model belongs to HVAC field, and in particular to a kind of region central cooling heating system.
Background technique
In the prior art, region central cooling heating system generally comprise Regional Energy station, be set to it is new in building
Blower and fan coil units, are respectively equipped with two plate heat exchangers between Regional Energy station and building, and one board-like to change
Hot device is connect with new blower, another plate heat exchanger is connect with fan coil units, the cold medium that Regional Energy station provides point
At two-way, it is passed through the plate heat exchanger connecting with new blower all the way and carries out heat exchange, another way is passed through to be connected with fan coil units
The plate heat exchanger connect swaps, this two-way is mutually indepedent, is parallel-connection structure.The defect of this structure is exactly in operational process
Energy cannot make full use of, and the return water after the first via and new blower heat exchange also has lower temperature, directly pass back into region
Energy source station, causes energy waste, and operating cost increases.
Technical term involved in this case is explained as follows：
Fan coil units：Abbreviation fan coil.It is by small-sized fan, motor and coil pipe（Air heat exchanger）Etc. groups
At one of air-conditioning system end equipment.When flowing through chilled water or hot water in coil pipe pipe and outer air heat-exchange is managed, keeps air cold
But, dehumidify or heat to adjust indoor air parameter.It is common cooling supply, heat supply end equipment.
Plate heat exchanger：It is the heat exchange equipment for separating two systems, normal two media heat exchange is 4 mouths：
Heat into：Thermal medium inlet；
Heat goes out：Thermal medium exports after heat exchange；
It is cold into：Cold source import；
It is cold go out：Cold source exchanges heat later outlet.
Utility model content
In view of the above-mentioned problems, the region that the utility model is intended to provide a kind of cascade utilization of achievable energy conveying is concentrated
Cold and heat supply system.
The technical solution that the utility model solves the problems, such as is：A kind of region central cooling heating system, including Regional Energy
New blower and the fan coil units stood, be set in building, further include the first plate heat exchanger, the second plate heat exchanger,
Between Regional Energy station and the cold source import of the first plate heat exchanger by the first water inlet pipe connect, the first plate heat exchanger it is cold
It is connected between source outlet and the cold source import of the second plate heat exchanger by the first return pipe；
The heat source import of first plate heat exchanger is connect by the second water inlet pipe with new blower, the heat of the first plate heat exchanger
Source outlet is connect by the second return pipe with new blower；
The heat source import of second plate heat exchanger is connect by third water inlet pipe with fan coil units, the second plate-type heat-exchange
The thermal source outlet of device is connect by third return pipe with fan coil units；
The cold source outlet of second plate heat exchanger is connect by the 4th return pipe with Regional Energy station.
In above scheme, cold source is introduced into new blower and enters back into fan coil units, is serial flow, compared to traditional and
Join for process, the first and last end system temperature difference is bigger, realizes the cascade utilization of energy conveying, more energy efficient.
Further, the fan coil units are dry coil pipe.
Dry coil pipe is for providing the equipment of cooling capacity or heat to indoor return air.Dry coil pipe in order to achieve the purpose that " to do ",
Multi-purpose chilled water temperature can be higher than the water temperature of common coil pipe, will not generally condense, therefore is referred to as " dry coil pipe ".Due to from
The cold source that the cold source of one plate heat exchanger exports out has already passed through primary heat exchange, and temperature is increased, and needed for dry coil pipe
Chilled water temperature is higher than the water temperature of common coil pipe, and temperature just matches.That is, the cold source after being utilized by primary energy
Temperature be exactly sink temperature needed for the second plate heat exchanger, such optimization design utilizes so that capacity usage ratio is higher
Logic is more reasonable.
Further, the fan coil units are equipped with multiple, and each fan coil units are parallel with one another in the by branch pipe
Between three water inlet pipes and third return pipe.
Further, the new blower is equipped with multiple, and each new blower is parallel with one another in the second water inlet pipe and the by branch pipe
Between two return pipes.
The remarkable result of the utility model is：
Cold source is introduced into new blower and enters back into fan coil units, is serial flow.After being utilized by primary energy
The temperature of cold source is exactly sink temperature needed for the second plate heat exchanger, such optimization design, so that capacity usage ratio is higher,
It is more reasonable using logic.For traditional parallel-connection flow, the first and last end system temperature difference is bigger, realizes the step of heat conveying
It utilizes, it is more energy efficient.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 is the utility model region central cooling heating system schematic diagram.
In figure：1- Regional Energy station, the new blower of 2-, 3- fan coil units, the first plate heat exchanger of 4-, 5- second are board-like
Heat exchanger, the first water inlet pipe of 6-, the first return pipe of 7-, the second water inlet pipe of 8-, the second return pipe of 9-, 10- third water inlet pipe, 11-
Third return pipe, the 4th return pipe of 12-.
Specific embodiment
As shown in Figure 1, a kind of region central cooling heating system, including Regional Energy station 1, be set to it is new in building
Blower 2 and fan coil units 3, the first plate heat exchanger 4, the second plate heat exchanger 5.
It is connected between Regional Energy station 1 and the cold source import of the first plate heat exchanger 4 by the first water inlet pipe 6.First plate
The cold source of formula heat exchanger 4, which is exported, to be connected between the cold source import of the second plate heat exchanger 5 by the first return pipe 7.
The heat source import of first plate heat exchanger 4 is connect by the second water inlet pipe 8 with new blower 2.First plate heat exchanger 4
Thermal source outlet connect with new blower 2 by the second return pipe 9.
The heat source import of second plate heat exchanger 5 is connect by third water inlet pipe 10 with fan coil units 3.Second is board-like
The thermal source outlet of heat exchanger 5 is connect by third return pipe 11 with fan coil units 3.
The cold source outlet of second plate heat exchanger 5 is connect by the 4th return pipe 12 with Regional Energy station 1.
The fan coil units 3 are dry coil pipe.
The fan coil units 3 are equipped with multiple.Each fan coil units 3 are parallel with one another in third water inlet pipe by branch pipe
Between 10 and third return pipe 11.
The new blower 2 is equipped with multiple.Each new blower 2 is parallel with one another in the second water inlet pipe 8 and the second return water by branch pipe
Between pipe 9.
Operational process is described by taking certain operating condition as an example：
5 DEG C of chilled waters that Regional Energy station 1 comes out enter the first plate heat exchanger 4, exchange heat with new blower 2, the second water inlet
Water temperature in pipe 8 is 12 DEG C or so, and the water temperature in the second return pipe 9 is 7 DEG C or so.New blower 2 carries out heat exchange to building and removes
It is wet, undertake building whole latent heat load and part sensible heat load.
Exporting from the cold source of the first plate heat exchanger 4 and flowing into the chilled water water temperature of the first return pipe 7 is 10 DEG C or so, is entered
Second plate heat exchanger 5 exchanges heat with fan coil units 3, and the water temperature in third water inlet pipe 10 is 19 DEG C or so, and third is returned
Water temperature in water pipe 11 is 12 DEG C or so.Fan coil units 3 undertake building remainder sensible heat load, at this time the 4th return water
Temperature in pipe 12 is at 17 DEG C or so.The full end system temperature difference reaches 12 DEG C, reaches the abundant cascade utilization of heat, defeated in energy
It send and has significant energy-saving benefit using link.
Claims (4)
1. a kind of region central cooling heating system, including Regional Energy station（1）, the new blower that is set in building（2）With
Fan coil units（3）, it is characterised in that：It further include the first plate heat exchanger（4）, the second plate heat exchanger（5）, Regional Energy
It stands（1）With the first plate heat exchanger（4）Cold source import between pass through the first water inlet pipe（6）Connection, the first plate heat exchanger（4）
Cold source outlet with the second plate heat exchanger（5）Cold source import between pass through the first return pipe（7）Connection；
First plate heat exchanger（4）Heat source import pass through the second water inlet pipe（8）With new blower（2）Connection, the first plate-type heat-exchange
Device（4）Thermal source outlet pass through the second return pipe（9）With new blower（2）Connection；
Second plate heat exchanger（5）Heat source import pass through third water inlet pipe（10）With fan coil units（3）Connection, the second plate
Formula heat exchanger（5）Thermal source outlet pass through third return pipe（11）With fan coil units（3）Connection；
Second plate heat exchanger（5）Cold source outlet pass through the 4th return pipe（12）With Regional Energy station（1）Connection.
2. central cooling heating system in region according to claim 1, it is characterised in that：The fan coil units（3）
For dry coil pipe.
3. central cooling heating system in region according to claim 1 or 2, it is characterised in that：The fan coil units
（3）Equipped with multiple, each fan coil units（3）It is parallel with one another in third water inlet pipe by branch pipe（10）With third return pipe（11）
Between.
4. central cooling heating system in region according to claim 1, it is characterised in that：The new blower（2）Equipped with more
It is a, each new blower（2）It is parallel with one another in the second water inlet pipe by branch pipe（8）With the second return pipe（9）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821674079.6U CN208108386U (en) | 2018-10-16 | 2018-10-16 | A kind of region central cooling heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821674079.6U CN208108386U (en) | 2018-10-16 | 2018-10-16 | A kind of region central cooling heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208108386U true CN208108386U (en) | 2018-11-16 |
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ID=64125692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821674079.6U Active CN208108386U (en) | 2018-10-16 | 2018-10-16 | A kind of region central cooling heating system |
Country Status (1)
| Country | Link |
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| CN (1) | CN208108386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628900A (en) * | 2021-01-21 | 2021-04-09 | 中国建筑西北设计研究院有限公司 | Regional cooling system based on partitioned energy source station |
-
2018
- 2018-10-16 CN CN201821674079.6U patent/CN208108386U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628900A (en) * | 2021-01-21 | 2021-04-09 | 中国建筑西北设计研究院有限公司 | Regional cooling system based on partitioned energy source station |
| CN112628900B (en) * | 2021-01-21 | 2022-02-22 | 中国建筑西北设计研究院有限公司 | Regional cooling system based on partitioned energy source station |
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