CN206626727U - A kind of region Smaller load direct-furnish cold supply system - Google Patents
A kind of region Smaller load direct-furnish cold supply system Download PDFInfo
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- CN206626727U CN206626727U CN201720324126.3U CN201720324126U CN206626727U CN 206626727 U CN206626727 U CN 206626727U CN 201720324126 U CN201720324126 U CN 201720324126U CN 206626727 U CN206626727 U CN 206626727U
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Abstract
The utility model discloses a kind of region Smaller load direct-furnish cold supply system,Including a feed pipe,Primary water pipe,Secondary water-supply pipe,Secondary return pipe,The mixed water pipe of bypass,Mixed flow tube and bypass pipe,The chilled water feed pipe at the cold station of Regional Energy is connected with a feed pipe,The chilled water return pipe at the cold station of Regional Energy is connected with primary water pipe,The total feed pipe of end load is connected with secondary water-supply pipe,The total return pipe of end load is connected with secondary return pipe,Circulating pump is provided with secondary return pipe,One time feed pipe is connected with secondary water-supply pipe,Primary water pipe is connected with secondary return pipe,The mixed water pipe of bypass connects a feed pipe and primary water pipe,Mixed flow tube connecting secondary feed pipe and secondary return pipe,It is and in parallel with bypassing mixed water pipe,Variable frequency pump is provided with mixed flow tube,The both ends of bypass pipe are connected on secondary return pipe and with circulating parallel connection of pumps.Pipeline connecting mode of the utility model more than, there is provided different cooling modes, avoid the wasting of resources.
Description
Technical field
It the utility model is related to regional cold supply system, and in particular to a kind of region Smaller load direct-furnish cold supply system.
Background technology
Recently as the fast development of China's economy, Process of Urbanization Construction constantly accelerates, and industrial development trend deepens continuously,
The energy also hits new peak repeatly with cost, the high speed development of heating ventilation and air conditioner industry particularly based on building, very big
The present situation and trend of China's rapid economic development are reflected in degree, but also brings some unfavorable factors, is built according to China
Authority's statistics of Science Institute is built, energy consumption account for the considerable part of the annual energy consumption in China in building, development both saved,
The feasible Refrigeration Technique of environmentally friendly and economical, by as realizing an important ring for China's sustainable development greatness strategic objective, region
Cooling is to we provide a kind of flexible green cooling scheme.
District cooling is the cold station of the large area energy using concentrated setting, is provided to a range of cold unit of need cold
The cooling mode of matchmaker, cold are produced using chilled water as carrier by the cold station of Regional Energy, and defeated by buried pipeline
Into office office building, industrial building and residential housing, room air is taken away by air-conditioning equipments such as wind cabinet or coiler fans
Heat.
In current widely used regional cold supply system, in building by the way of indirect cooling, i.e., set in building
Heat exchanger, the heat exchange in cooling region chilled water and building between air-conditioning system cold water is realized by heat exchanger, in building
Refrigerant is conveyed by water pump, and this causes this regional cold supply system even in the i.e. a small amount of user of Smaller load with the case of cold, Yong Huye
Cold must could be obtained by starting water pump, cause the waste of resource.
Utility model content
The problem of the utility model technical issues that need to address are the wastings of resources existing for existing regional cold supply system.
In order to solve the above-mentioned technical problem, to be to provide a kind of region Smaller load straight for technical scheme used by the utility model
For cold supply system, including a feed pipe, primary water pipe, secondary water-supply pipe, secondary return pipe, the mixed water pipe of bypass, mixed flow tube
And bypass pipe, the chilled water feed pipe at the cold station of Regional Energy are connected with a feed pipe, the chilled water at the cold station of Regional Energy
Return pipe is connected with the primary water pipe, and the total feed pipe of end load is connected with the secondary water-supply pipe, and end load is always returned
Water pipe is connected with the secondary return pipe, and circulating pump, a feed pipe and described two are provided with the secondary return pipe
Secondary feed pipe is connected, and the primary water pipe is connected with the secondary return pipe, is once supplied described in the mixed water pipe connection of bypass
Water pipe and the primary water pipe, the mixed flow tube connect the secondary water-supply pipe and the secondary return pipe, and with the side
Water pipe parallel connection is mixed on road, is provided with variable frequency pump on the mixed flow tube, the both ends of the bypass pipe are connected on the secondary return pipe
And with the circulation parallel connection of pumps.
In such scheme, on bypass mixed water pipe, the mixed flow tube, the bypass pipe and the secondary return pipe
It is provided with non-return valve, the conducting direction of the above non-return valve everywhere is respectively：The primary water pipe once supplies described in pointing to
Water pipe, the secondary return pipe point to the secondary water-supply pipe, pointed to close to end load away from end load and the circulation
Pump points to the mixed water pipe of the bypass.
In such scheme, the first temperature sensor and second temperature sensor, institute are provided with the secondary water-supply pipe
To state and regulating valve is provided with primary water pipe, first temperature sensor can pass to temperature signal the regulating valve,
The second temperature sensor can pass to temperature signal the variable frequency pump.
In such scheme, three-temperature sensor is respectively arranged with a feed pipe and the primary water pipe
With the 4th temperature sensor, flowmeter, the three-temperature sensor, the 4th temperature are provided with the primary water pipe
Sensor and the flowmeter are connected with cold meter.
The utility model, there is provided a kind of region Smaller load direct-furnish cold supply system, this region Smaller load direct-furnish cold supply system
Two kinds of cooling modes in, big load cooling mode can be with cold by circulating pump in user largely with the case of cold
End load provides cold, and Smaller load cooling mode can make full use of region energy in a small amount of user with the case of cold
The cold station water pump in source neatly to provide cold with cold end load, has saved the energy with this, has had cooling flexibly practical and convenient
Feature.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is big load cooling schematic diagram of the present utility model；
Fig. 3 is Smaller load cooling schematic diagram of the present utility model.
Embodiment
The utility model is described in detail with reference to Figure of description.
As shown in figure 1, the utility model provides a kind of district cooling Smaller load direct supply system, including a feed pipe
10th, primary water pipe 11, secondary water-supply pipe 20, secondary return pipe 21, the mixed water pipe 30 of bypass, mixed flow tube 40, bypass pipe 50, check
Valve 60, regulating valve 70, the first temperature sensor 71, second temperature sensor 72, three-temperature sensor 73, the 4th TEMP
Device 74, flowmeter 75, variable frequency pump 80, circulating pump 90 and cold meter 100.
The chilled water feed pipe at the cold station of Regional Energy is connected with a feed pipe 10, the chilled water backwater at the cold station of Regional Energy
Pipe is connected with primary water pipe 11, and the total feed pipe of end load is connected with secondary water-supply pipe 20, the total return pipe of end load and two
Secondary return pipe 21 is connected, and circulating pump 90 is provided with secondary return pipe 21, and one time feed pipe 10 is connected with secondary water-supply pipe 20, and one
Secondary return pipe 11 is connected with secondary return pipe 21, bypasses mixed water pipe 30 and connects a feed pipe 10 and primary water pipe 11, mixed flow
The connecting secondary feed pipe 20 of pipe 40 and secondary return pipe 21, and it is in parallel with bypassing mixed water pipe 30, it is provided with frequency conversion on mixed flow tube 40
Pump 80, the both ends of bypass pipe 50 are connected on secondary return pipe 21 and in parallel with circulating pump 90.
Bypass mixes and non-return valve 60 is provided with water pipe 30, mixed flow tube 40, bypass pipe 50 and secondary return pipe 21, and above-mentioned four
Place non-return valve 60 conducting direction be respectively：Feed pipe 10 of the sensing of primary water pipe 11, secondary return pipe 21 point to secondary
Feed pipe 20, pointed to close to end load and point to the mixed water pipe 30 of bypass away from end load and circulating pump 90.Primary water pipe 11
On be provided with regulating valve 70, be provided with the first temperature sensor 71 and second temperature sensor 72 on secondary water-supply pipe 20, first
Temperature sensor 71 is used to temperature signal passing to regulating valve 70, and second temperature sensor 72 is used to pass to temperature signal
Variable frequency pump 80, the TEMP of three-temperature sensor 73 and the 4th is respectively arranged with a feed pipe 10 and primary water pipe 11
Device 74, flowmeter 75, three-temperature sensor 73, the 4th temperature sensor 74 and flowmeter 75 are provided with primary water pipe 11
It is connected with cold meter 100 and 100 carries out cooling metering based on by the data transfer collected to cold.
This region Smaller load direct-furnish cold supply system is respectively applied to end load and largely used on a small quantity with cold and end load
Cold big load cooling mode and Smaller load cooling mode, introduces both cooling modes separately below.
Big load cooling mode：As shown in Fig. 2 user needs to start circulating pump 90 under big load cooling mode, close and become
Frequency pump 80, the chilled water flow of completion heat exchange is after 90s by circulating pump through secondary return pipe 21 at end load, and a part is logical
Cross primary water pipe 11 and flow back into the cold station of Regional Energy, another part by bypass mixed water pipe 30 with it is cold in a feed pipe 10
Freeze water mixing, end load is entered by secondary water-supply pipe 20, the first TEMP on this secondary water-supply pipe 20 is set
Device 71 controls the flow of chilled water in primary water pipe 11 by controlling to adjust valve 70, and then controls and freezed in the mixed water pipe 30 of bypass
The mixed proportion of chilled water, makes the temperature of the chilled water in secondary water-supply pipe 20 reach the mesh of setting in water and a feed pipe 10
Temperature is marked, is circulated with this.
Smaller load cooling mode：As shown in figure 3, user needs to start variable frequency pump 80 under Smaller load cooling mode, the is closed
One temperature sensor 71, user can utilize the water pump at the cold station of Regional Energy directly supply water under Smaller load cooling mode, and chilled water exists
After bypass pipe 50 is flowed through after end load heat exchange, a part flow back into the cold station of Regional Energy by primary water pipe 11, another
Part is mixed by mixed flow tube 40 with the chilled water in a feed pipe 10, and end load is entered by secondary water-supply pipe 20,
Set the second temperature sensor 72 on this secondary water-supply pipe 20 that temperature signal is passed into variable frequency pump 80 and control variable frequency pump 80
Work and control the flow of chilled water in mixed flow tube 40, and then control in mixed flow tube 40 and freezed in chilled water and a feed pipe 10
The mixed proportion of water, the temperature of the chilled water in secondary water-supply pipe 20 is reached the target temperature of setting, circulated with this.
On the one hand Smaller load cooling mode can make user neatly obtain cold as needed, on the other hand reduce again
The waste of the electricity of circulating pump 90, has saved resource.
In two kinds of cooling modes provided by the utility model, big load cooling mode can be in user largely with cold situation
Under, by circulating pump 90 to provide cold with cold end load, Smaller load cooling mode can be in a small amount of user with cold feelings
Under condition, the cold station water pump of Regional Energy can be made full use of to have saved energy neatly to provide cold with cold end load with this
Source, there is the characteristics of cooling is flexibly practical and convenient.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn that under enlightenment of the present utility model
The structure change made, it is every that there is same or like technical scheme with the utility model, each fall within guarantor of the present utility model
Within the scope of shield.
Claims (4)
1. a kind of region Smaller load direct-furnish cold supply system, including a feed pipe, primary water pipe, secondary water-supply pipe, secondary returning
Water pipe, bypass mixed water pipe, mixed flow tube and bypass pipe, it is characterised in that：The chilled water feed pipe at the cold station of Regional Energy and described one
Secondary feed pipe is connected, and the chilled water return pipe at the cold station of Regional Energy is connected with the primary water pipe, the total feed pipe of end load
It is connected with the secondary water-supply pipe, the total return pipe of end load is connected with the secondary return pipe, is set on the secondary return pipe
Circulating pump is equipped with, a feed pipe is connected with the secondary water-supply pipe, the primary water pipe and the secondary return pipe
It is connected, the mixed water pipe of bypass connects a feed pipe and the primary water pipe, and the mixed flow tube connection is described secondary
Feed pipe and the secondary return pipe, and it is in parallel with the mixed water pipe of the bypass, variable frequency pump, the side are provided with the mixed flow tube
The both ends of siphunculus be connected on the secondary return pipe and with the circulation parallel connection of pumps.
2. Smaller load direct-furnish cold supply system in region as claimed in claim 1, it is characterised in that the mixed water pipe of the bypass, described
It is provided with non-return valve on mixed flow tube, the bypass pipe and the secondary return pipe, the conducting side of the above non-return valve everywhere
To respectively：The primary water pipe points to a feed pipe, the secondary return pipe points to the secondary water-supply pipe, leaned on
Proximal end load points to points to the mixed water pipe of the bypass away from end load and the circulating pump.
3. Smaller load direct-furnish cold supply system in region as claimed in claim 1, it is characterised in that set on the secondary water-supply pipe
There are the first temperature sensor and second temperature sensor, regulating valve is provided with the primary water pipe, first temperature passes
Sensor can pass to temperature signal the regulating valve, and the second temperature sensor can pass to temperature signal described
Variable frequency pump.
4. Smaller load direct-furnish cold supply system in region as claimed in claim 1 a, it is characterised in that feed pipe and described
Three-temperature sensor and the 4th temperature sensor are respectively arranged with primary water pipe, stream is provided with the primary water pipe
Gauge, the three-temperature sensor, the 4th temperature sensor and the flowmeter are connected with cold meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720324126.3U CN206626727U (en) | 2017-03-30 | 2017-03-30 | A kind of region Smaller load direct-furnish cold supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720324126.3U CN206626727U (en) | 2017-03-30 | 2017-03-30 | A kind of region Smaller load direct-furnish cold supply system |
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| CN206626727U true CN206626727U (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720324126.3U Active CN206626727U (en) | 2017-03-30 | 2017-03-30 | A kind of region Smaller load direct-furnish cold supply system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344136A (en) * | 2018-01-30 | 2018-07-31 | 安徽华元暖通节能科技有限公司 | A kind of central air-conditioning intelligence hydraulic equilibrium distributor |
| CN112413896A (en) * | 2020-11-06 | 2021-02-26 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Hot water loop variable load device and hot water loop |
| CN115111630A (en) * | 2022-06-10 | 2022-09-27 | 珠海格力电器股份有限公司 | Heating system and control method thereof |
-
2017
- 2017-03-30 CN CN201720324126.3U patent/CN206626727U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344136A (en) * | 2018-01-30 | 2018-07-31 | 安徽华元暖通节能科技有限公司 | A kind of central air-conditioning intelligence hydraulic equilibrium distributor |
| CN112413896A (en) * | 2020-11-06 | 2021-02-26 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Hot water loop variable load device and hot water loop |
| CN115111630A (en) * | 2022-06-10 | 2022-09-27 | 珠海格力电器股份有限公司 | Heating system and control method thereof |
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