CN211953120U - Cold and hot two heat supply exchange system - Google Patents
Cold and hot two heat supply exchange system Download PDFInfo
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- CN211953120U CN211953120U CN202020562070.7U CN202020562070U CN211953120U CN 211953120 U CN211953120 U CN 211953120U CN 202020562070 U CN202020562070 U CN 202020562070U CN 211953120 U CN211953120 U CN 211953120U
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Abstract
The utility model discloses a cold and hot two heat supply exchange system, which comprises a heat source, wherein the heat source is respectively connected with a refrigerator and a heater, the refrigerator and the heater are mutually connected in parallel and are both connected with a primary pipeline in series, the primary pipeline is also connected with a plurality of heat exchangers, and each heat exchanger is also connected with a secondary pipeline; the primary pipeline is connected with a secondary pipeline outside a secondary water outlet of the heat exchanger through a first communicating pipeline outside a primary water inlet of each heat exchanger, the primary pipeline is connected with a secondary pipeline outside a secondary water inlet of the heat exchanger through a second communicating pipeline outside a primary water outlet of each heat exchanger, a first valve is arranged on the first communicating pipeline, and a second valve is arranged on the second communicating pipeline. The cold and hot heat exchange system can realize centralized cold supply and heat supply, save a large amount of electric energy, and no matter cold supply and heat supply, once the secondary pipeline leaks, the water temperature can not cause injury to the human body.
Description
Technical Field
The utility model relates to a heat supply technical field specifically relates to a cold and hot two heat supply exchange system.
Background
At present, in many cities in the north, a central heating mode is adopted in winter, for example, hot water generated by heat sources such as thermal power plants or boilers is operated by pipelines of a heating company to supply heat to users. The pipeline comprises a primary network pipeline and a secondary network pipeline, hot water of a heat source forms circulation through the primary network, passes through a plurality of heat exchange stations of the community, transfers heat to water in the secondary network pipeline through the heat exchanger in the heat exchange stations, and conveys the water in the secondary network pipeline to each resident of the community after the temperature of the water in the secondary network pipeline is raised. People usually adopt an air conditioner to refrigerate in summer, a large amount of electric energy is consumed by common air conditioners regardless of centralized type, semi-centralized type or fully-distributed type, electric power overload operation is caused, and the ozone layer of the atmosphere can be damaged due to the leakage of Freon in an air conditioner refrigerating machine. In summer, if a refrigerator is arranged on the original centralized heating pipeline to provide cold water, the water temperature in the primary pipeline reaches 7-10 ℃, the water temperature in the secondary pipeline reaches 20-25 ℃, the temperature difference between the primary pipeline and the secondary pipeline is small, the water temperature in the secondary pipeline is reduced to a limited extent, and the requirement of cooling cannot be met. If the heat exchanger with better replacement effect not only increases much cost, but also the heat exchange effect is still not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two heat supply exchange system of cold and hot, this two heat supply exchange system of cold and hot heat supply company rely on original central heating pipeline, according to the different heat transfer modes that adopt in season, and the user side only needs the installation fan-coil unit, alright realize central cooling and heat supply, and the transformation volume is little, and is with low costs, has saved a large amount of electric energy, and no matter the cooling heat supply, in case the secondary pipeline takes place to leak, and the temperature can not cause the injury to the person.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a cold and hot two-heat supply exchange system comprises a heat source, wherein the heat source is respectively connected with a refrigerator and a heater, the refrigerator and the heater are mutually connected in parallel and are respectively connected with a primary pipeline in series, the primary pipeline is also connected with a plurality of heat exchangers, each heat exchanger is also connected with a secondary pipeline, and the secondary pipeline is provided with a plurality of air conditioners; the primary pipeline is connected with a secondary pipeline outside a secondary water outlet of the heat exchanger through a first communicating pipeline outside a primary water inlet of each heat exchanger, the primary pipeline is connected with a secondary pipeline outside a secondary water inlet of the heat exchanger through a second communicating pipeline outside a primary water outlet of each heat exchanger, a first valve is arranged on the first communicating pipeline, a second valve is arranged on the second communicating pipeline, a primary valve is arranged on the primary pipeline between the first communicating pipeline and the second communicating pipeline, and a secondary valve is arranged on the secondary pipeline between the first communicating pipeline and the second communicating pipeline.
Preferably, a first water pump is arranged on the first communicating pipeline, a second water pump is arranged on the second communicating pipeline, a plurality of temperature sensors are arranged on the secondary pipeline, and the first water pump, the second water pump and the temperature sensors are all connected with the control unit.
Preferably, the air conditioner is a fan coil unit.
Further preferably, the refrigerator is a lithium bromide refrigerator.
When the utility model supplies heat, the heat source generates high temperature hot water through the heater, the high temperature hot water circulates in the primary pipeline and generates heat exchange with the water in the secondary pipeline through each heat exchanger to enable the secondary pipeline to generate low temperature hot water and transmit the low temperature hot water to each air conditioner, thereby supplying heating for users; when supplying cold, will once pipeline and secondary pipeline intercommunication through first valve and second valve, make whole first pipeline and secondary pipeline form the circulation through once valve and secondary valve, the heat source produces cold water through the refrigerator, send cold water to secondary pipeline through first communicating pipe in the pipeline of once and carry for each air conditioner, supply with the user refrigeration, return low temperature return water to pipeline completion circulation once through the second communicating pipe, heat supply company relies on original central heating pipeline, adopt different heat transfer modes according to the difference in seasons, the user side only needs to install fan coil unit, alright realize central cooling and heat supply, the transformation volume is little, therefore, the solar water heater is low in cost, a large amount of electric energy has been saved, and no matter the cooling and heat supply, once the secondary pipeline takes place to leak, the temperature can not cause the injury to the person.
Drawings
Fig. 1 is a schematic view of the heat exchange system for cold and hot water of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, a cold and hot heat exchange system includes a heat source 10, the heat source 10 is steam which has done a certain work by a power plant, the heat source 10 provides high-temperature steam in summer, the heat source 10 provides high-temperature hot water in winter, the heat source 10 is respectively connected with a refrigerator 20 and a heater 30, the refrigerator 20 is a lithium bromide refrigerator, the high-temperature steam provided by the heat source 10 can be converted into liquid and vapor by a lithium bromide solution to produce cold water at 7-10 ℃, the heater 30 can further improve the high-temperature hot water provided by the heat source 10, the refrigerator 20 and the heater 30 are correspondingly provided with a refrigerator valve 21 and a heater valve 31, when supplying cold or heating, only the valves corresponding to the refrigerator 20 and the heater 30 need to be opened or closed, and the heat source 10 is selected to pass through the refrigerator 20 or the heater 30; the refrigerator 20 and the heater 30 are mutually connected in parallel and are connected with the primary pipeline 40 in series, the primary pipeline 40 is provided with a circulating water pump 45 and a plurality of heat exchangers 50, each heat exchanger 50 is also connected with a secondary pipeline 60, the secondary pipeline 60 is provided with a plurality of air conditioners 70, and the air conditioners 70 are fan-coil units for better releasing heat or cold and supplying heating or cooling for users; the primary pipe 40 is connected to the secondary pipe 60 outside the secondary water outlet 62 of the heat exchanger 50 through a first communication pipe 81 outside the primary water inlet 41 of each heat exchanger 50, the primary pipe 40 is connected to the secondary pipe 60 outside the secondary water inlet 61 of the heat exchanger 50 through a second communication pipe 82 outside the primary water outlet 42 of each heat exchanger 50, a first valve 83 is provided on the first communication pipe 81, a second valve 84 is provided on the second communication pipe 82 for communicating the primary pipe 40 with the secondary pipe 60, a primary valve 43 is provided on the primary pipe 40 between the first communication pipe 81 and the second communication pipe 82, and a secondary valve 63 is provided on the secondary pipe 60 between the first communication pipe 81 and the second communication pipe 82 for circulating the entire primary pipe 40 and the secondary pipe 60.
In order to improve the heat exchange efficiency between cold water and air, a first water pump 85 is generally arranged on the first communication pipeline 81 and used for improving the water inlet circulation flow rate of the secondary pipeline 60, a second water pump 86 is arranged on the second communication pipeline 82 and used for improving the water return circulation flow rate of the secondary pipeline 60, a plurality of temperature sensors 87 (not shown) are further arranged on the secondary pipeline 60, the first water pump 85, the second water pump 86 and the temperature sensors 87 are all connected with a control unit 88 (not shown), the temperature sensors 87 monitor the water temperature of the secondary pipeline 60 and transmit monitoring signals to the control unit 88, the control unit 88 drives the first water pump 85 and the second water pump 86 to control the water inlet and return flow rate in the secondary pipeline 60, and the heat exchange efficiency between cold water and air is improved.
The utility model discloses when needing the heat supply, open heater valve 31, primary valve 43 and secondary valve 63, heat source 10 and heater 30 communicate, close first valve 83 and second valve 84, primary pipeline 40 and secondary pipeline 60 separately circulate, heat source 10 produces high temperature hot water through heater 30, high temperature hot water passes through circulating water pump 45 and circulates in primary pipeline 40 and through each heat exchanger 50 in with the water heat exchange in the secondary pipeline 60 make the secondary pipeline 60 produce low temperature hot water and deliver to each air conditioner 70, supply the user heating; when in cold supply, the heater valve 31 is closed, the refrigerator valve 21 is opened, the heat source is communicated with the refrigerator 20, the primary valve 43 and the secondary valve 63 are closed, the first valve 83 and the second valve 84 are opened, the primary pipeline 40 is communicated with the secondary pipeline 60, the whole primary pipeline 40 and the secondary pipeline 60 form circulation, the heat source 10 generates cold water through the refrigerator 20, the cold water is sent to the secondary pipeline 60 through the first communicating pipe 81 in the primary pipeline 40 and is conveyed to each air conditioner 70 for refrigeration of a user, the cold water returns to the primary pipeline 40 through the second communicating pipe 82 to complete circulation, the temperature sensor 87 monitors the temperature of the water in the secondary pipeline 60, a monitoring signal is sent to the control unit 88, the control unit 88 drives the first water pump 85 and the second water pump 86 to control the flow rate of the inlet water and the return water in the secondary pipeline 60, the heat exchange efficiency of the cold water and the air, the transformation quantity is small, and no matter the cooling and heating supply, once the secondary pipeline leaks, the water temperature can not cause the injury to the human body.
The embodiment is only an illustration of the concept and implementation of the present invention, and is not a limitation, and the technical solution without substantial transformation is still within the protection scope under the concept of the present invention.
Claims (4)
1. A cold and hot two-heat supply exchange system comprises a heat source and is characterized in that the heat source is respectively connected with a refrigerator and a heater, the refrigerator and the heater are mutually connected in parallel and are connected in series with a primary pipeline, the primary pipeline is also connected with a plurality of heat exchangers, each heat exchanger is also connected with a secondary pipeline, and the secondary pipeline is provided with a plurality of air conditioners; the primary pipeline is connected with a secondary pipeline outside a secondary water outlet of the heat exchanger through a first communicating pipeline outside a primary water inlet of each heat exchanger, the primary pipeline is connected with a secondary pipeline outside a secondary water inlet of the heat exchanger through a second communicating pipeline outside a primary water outlet of each heat exchanger, a first valve is arranged on the first communicating pipeline, a second valve is arranged on the second communicating pipeline, a primary valve is arranged on the primary pipeline between the first communicating pipeline and the second communicating pipeline, and a secondary valve is arranged on the secondary pipeline between the first communicating pipeline and the second communicating pipeline.
2. A cold-heat exchange system according to claim 1, wherein a first water pump is provided in the first communication pipe, a second water pump is provided in the second communication pipe, a plurality of temperature sensors are provided in the secondary pipe, and the first water pump, the second water pump and the temperature sensors are connected to a control unit.
3. A hot and cold two-heat exchange system according to claim 1, wherein the air conditioner is a fan coil unit.
4. A hot and cold two-heat supply exchange system according to claim 1, wherein the refrigerator is a lithium bromide refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020562070.7U CN211953120U (en) | 2020-04-16 | 2020-04-16 | Cold and hot two heat supply exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020562070.7U CN211953120U (en) | 2020-04-16 | 2020-04-16 | Cold and hot two heat supply exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211953120U true CN211953120U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020562070.7U Active CN211953120U (en) | 2020-04-16 | 2020-04-16 | Cold and hot two heat supply exchange system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211953120U (en) |
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2020
- 2020-04-16 CN CN202020562070.7U patent/CN211953120U/en active Active
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