CN219656171U - Steam recycling system of municipal central heating system - Google Patents
Steam recycling system of municipal central heating system Download PDFInfo
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- CN219656171U CN219656171U CN202321107079.9U CN202321107079U CN219656171U CN 219656171 U CN219656171 U CN 219656171U CN 202321107079 U CN202321107079 U CN 202321107079U CN 219656171 U CN219656171 U CN 219656171U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 38
- 238000004064 recycling Methods 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 230000005855 radiation Effects 0.000 claims abstract description 21
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 238000010992 reflux Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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Abstract
The utility model relates to a steam recycling system of a municipal central heating system, which comprises a municipal heat source, a heat pump unit, a fresh air unit and a radiation tail end, wherein a first heat exchanger is arranged between the radiation tail end and the municipal heat source, and the technical key points are as follows: the return line of municipal administration heat source is equipped with the thermal deaerator of transportation branch road and the end-to-end connection of transportation branch road, thermal deaerator connects the filter, and the filter is connected with steam boiler in addition, and steam boiler's steam outlet pipeline connects vapor compression pump, and vapor compression pump's outlet pipeline and fresh air heat exchanger's in the fresh air unit heat transfer pipeline entry linkage, heat transfer pipeline export and steam use equipment are connected, and steam use equipment is connected with comdenstion water collection device, and comdenstion water collection device's output pipeline end-to-end connection water return pump. The system solves the problem that the load of the circulating pump group at the bottom layer of the building is heavy after the new fan is added in the existing municipal central heating system, simultaneously relieves the pressure of the industrial steam production line in winter, and improves the industrial steam yield.
Description
Technical Field
The utility model relates to a municipal central heating system, in particular to a steam recycling system of the municipal central heating system.
Background
Industrial steam, which is usually pretreated tap water, enters a steam boiler and is evaporated from a liquid state to a gas state, and after reaching a certain pressure and temperature, the industrial steam is conveyed to a using place through a steam pipeline. At present, steam boilers are mostly used for industrial production, and hot water boilers are mostly used for resident living needs. The municipal central heating system mainly adopts high-temperature hot water for heating, and heat is transmitted to users through a main pipe network, a heat exchange station and a secondary pipe network.
In order to save non-renewable resources, in winter, the municipal central heating system can adopt a heat pump unit and a municipal heat source to supply heat in a combined mode, and simultaneously, in order to ensure indoor air comfort, a fresh air fan is also adopted to provide fresh air for the radiation tail end. The heat source of the heat exchanger in the fresh air machine is generally from a heat pump unit or municipal heat source, but the burden of the circulating pump set at the bottom layer of the building is heavier due to the use of the newly added fresh air machine. Meanwhile, in winter, the demand of industrial steam is higher, so that the pressure of the existing production line is caused, and the yield improvement is limited.
Disclosure of Invention
The utility model aims to provide a steam recycling system of a municipal central heating system, which is reasonable in structure and reliable in use, and solves the problem that a building bottom circulating pump set is heavy in load after a new fan is added in the existing municipal central heating system, meanwhile, the pressure of an industrial steam production line in winter is relieved, and the industrial steam yield is improved.
The technical scheme of the utility model is as follows:
the utility model provides a municipal central heating system's steam cycle uses system, includes municipal heat source, heat pump set, fresh air unit and radiation end, the radiation end includes many heating pipelines, water knockout drum and the water collector of being connected with each heating pipeline, be equipped with first heat exchanger between radiation end and the municipal heat source, the high temperature side heat exchange pipeline entry of first heat exchanger utilizes municipal heating pipeline to be connected with municipal heat source, and the high temperature side heat exchange pipeline export of first heat exchanger utilizes return line to be connected with municipal heat source, and its technical essential is: the utility model discloses a steam boiler, including fresh air handling unit, return line, condensate water collection device, return pump, fresh air handling unit, return line, pipeline and condensate water collection device, the return line is equipped with the end-to-end connection thermal deaerator that carries shunt and carry shunt, thermal deaerator's export pipeline connection filter, the export pipeline of filter and steam boiler's water inlet connection, steam boiler's steam outlet pipeline connection vapor compression pump, the export pipeline of vapor compression pump is connected with the heat transfer pipeline entry of fresh air heat exchanger in the fresh air handling unit, the heat transfer pipeline export utilizes the pipeline to be connected with steam service equipment, steam service equipment is connected with condensate water collection device, condensate water collection device's output pipeline end-to-end connection return pump, the export pipeline of return pump communicates with steam boiler's entry.
According to the steam recycling system of the municipal central heating system, the branch connected with the return pipeline of the municipal heat source is additionally arranged on the outlet pipeline of the return water pump, and condensed water can be directly conveyed back to the municipal heat source through the branch.
The utility model provides a municipal central heating system's steam cycle uses system, be equipped with the second heat exchanger between heat pump set and the radiation end, the low temperature side heat transfer pipeline entry of first heat exchanger is connected with the water collector exit linkage, low temperature side heat transfer pipeline export is connected with the water knockout drum entry, the low temperature side heat transfer pipeline entry of second heat exchanger utilizes branch pipeline and the low temperature side heat transfer pipeline exit linkage of first heat exchanger, the low temperature side heat transfer pipeline export of second heat exchanger utilizes secondary pipeline and water knockout drum entry linkage, the high temperature side heat transfer pipeline entry of second heat exchanger utilizes heat pump set heating pipeline to be connected with heat pump set, the high temperature side heat transfer pipeline export of second heat exchanger utilizes the second return line to be connected with heat pump set.
According to the steam recycling system of the municipal central heating system, the heat exchange pipeline of the fresh air heat exchanger is connected with the drain valve and is connected with the condensate water receiving pipeline through the drain valve, and the tail end of the condensate water receiving pipeline is communicated with the output pipeline of the condensate water collecting device.
The beneficial effects of the utility model are as follows:
1. a steam production line is additionally arranged in the municipal central heating system, low-temperature heat sources in a municipal heat source return pipeline are utilized to produce steam, energy is saved, the produced steam is sent to a fresh air unit as a heat source of a fresh air heat exchanger of the fresh air unit, compared with the method for conveying hot water to the fresh air handling unit, the method has the advantages that the conveying pressure is small due to low steam density, so that the problem that the burden of a circulating pump set at the bottom layer of a building is heavy after a new fan is added in the existing municipal central heating system is solved, and meanwhile, the heat energy required by the fresh air handling unit is guaranteed.
2. The temperature of the steam passing through the fresh air unit is reduced and the steam can be still used for other steam using equipment, and finally, the steam condensate water flows back to the inlet of the steam boiler or flows back to the municipal heat source, so that the cyclic utilization is realized. In the process, the pressure of a steam production line in winter is relieved, and the industrial steam yield is improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure: 1. municipal heat source, 2, municipal heating pipeline, 3, first heat exchanger, 4, water collector, 5, heating pipeline, 6, water distributor, 7, return line, 8, delivery shunt, 9, thermal deaerator, 10, filter, 11, steam boiler, 12, branch, 13, water return pump, 14, second heat exchanger, 15, branch line, 16, secondary line, 17, air supply line, 18, vapor compression pump, 19, fresh air unit, 20, fresh air heat exchanger, 21, condensate receiving line, 22, output line, 23, fan, 24, steam use equipment, 25, condensate collection device, 26.
Description of the embodiments
The utility model will be described in detail with reference to the drawings.
As shown in fig. 1, the steam cycle using system of the municipal central heating system comprises a municipal heat source 1, a heat pump unit 26, a fresh air unit 19 and a radiation end. The radiation end comprises a plurality of heating pipelines 5, a water separator 6 connected with each heating pipeline 5 and a water collector 4. A first heat exchanger 3 is arranged between the radiation end and the municipal heat source 1, the inlet of a high-temperature side heat exchange pipeline of the first heat exchanger 3 is connected with the municipal heat source 1 by utilizing a municipal heat supply pipeline 2, and the outlet of the high-temperature side heat exchange pipeline of the first heat exchanger 3 is connected with the municipal heat source 1 by utilizing a return pipeline 7.
The reflux pipeline 7 is provided with a conveying branch pipeline 8, the tail end of the conveying branch pipeline 8 is connected with a thermal deaerator 9, an outlet pipeline of the thermal deaerator 9 is connected with a filter 10, an outlet pipeline of the filter 10 is connected with a water inlet of a steam boiler 11, a steam outlet pipeline of the steam boiler 11 is connected with a steam compression pump 18, an outlet pipeline of the steam compression pump 18 is connected with a heat exchange pipeline inlet of a fresh air heat exchanger 20 in a fresh air unit 19, an outlet of the heat exchange pipeline is connected with a steam using device 24 by a pipeline, the steam using device 24 is connected with a condensate water collecting device 25, an outlet pipeline 22 of the condensate water collecting device 25 is connected with a water return pump 13, and an outlet pipeline of the water return pump 13 is communicated with an inlet of the steam boiler 11. The outlet pipeline of the water return pump 13 is further provided with a branch 12 connected with the return pipeline 7 of the municipal heat source 1, and condensed water can be directly conveyed back to the municipal heat source 1 through the branch 12. The outlet of the fresh air handling unit 19 is provided with an air supply pipeline 17 extending towards the radiation end. The fan 23 in the fresh air unit 19 introduces outdoor air into the fresh air unit 19 and heats the air by the fresh air heat exchanger 20, and finally enters the air supply pipeline 17 from the outlet of the fresh air unit 19 and is sent to the radiation end through the air supply pipeline 17.
In this embodiment, a second heat exchanger 14 is disposed between the heat pump unit 26 and the radiation end, the inlet of the low-temperature side heat exchange pipeline of the first heat exchanger 3 is connected to the outlet of the water collector 4, the outlet of the low-temperature side heat exchange pipeline is connected to the inlet of the water separator 6, the inlet of the low-temperature side heat exchange pipeline of the second heat exchanger 14 is connected to the outlet of the low-temperature side heat exchange pipeline of the first heat exchanger 3 by using a branch pipeline 15, the outlet of the low-temperature side heat exchange pipeline of the second heat exchanger 14 is connected to the inlet of the water separator 6 by using a secondary pipeline 16, the inlet of the high-temperature side heat exchange pipeline of the second heat exchanger 14 is connected to the heat pump unit 26 by using a heat pump heat supply pipeline, and the outlet of the high-temperature side heat exchange pipeline of the second heat exchanger 14 is connected to the heat pump unit 26 by using a second return pipeline.
The number of the fresh air units 19 is two, and the heat exchange pipeline of the fresh air heat exchanger 20 of each fresh air unit 19 is connected with a drain valve and connected with a condensed water receiving pipeline 21 through the drain valve, and the tail end of the condensed water receiving pipeline 21 is communicated with an output pipeline 22 of a condensed water collecting device 25.
Working principle:
1. in winter heating, municipal heat source 1 and heat pump unit 26 are used for combined heating. The fluid in the heat supply pipeline 5 is sent into the low-temperature side heat exchange pipeline of the first heat exchanger 3 by the radiation end water collector 4, after the heat is increased by the municipal heat source 1 through the high-temperature side heat exchange pipeline of the first heat exchanger 3, the fluid enters the branch pipeline 15, then enters the low-temperature side heat exchange pipeline of the second heat exchanger 14 through the branch pipeline 15, after the heat is increased by the heat pump unit 26 through the high-temperature side heat exchange pipeline of the second heat exchanger 14, the fluid enters the secondary pipeline 16, so that the fluid flows back to the water separator 6 to realize circulation heating and heat supply.
2. At the same time, the return water of the municipal heat source 1 supplies heat for the fresh air heat exchanger 19, enters the steam boiler 11 to be heated through deoxidization and filtration, generates low-pressure steam, is converted into high-pressure steam by the steam compression pump 18, and enters the heat exchange pipeline of the fresh air heat exchanger 20. The fan 23 in the fresh air unit 19 introduces outdoor air into the fresh air unit 19 and heats the air through the fresh air heat exchanger 20, and finally enters the air supply pipeline 17 from the outlet of the fresh air unit 19 and is sent to the radiation end through the air supply pipeline 17.
3. When the heat pump unit 26 is in fault and needs to be overhauled, the branch pipeline 15 and the secondary pipeline 17 are cut off, the water collector 4 at the radiation end sends fluid in the heat supply pipeline 5 into the low-temperature side heat exchange pipeline of the first heat exchanger 3, and after heat is increased by the municipal heat source 1 through the high-temperature side heat exchange pipeline of the first heat exchanger 3, the fluid enters the water separator 6 at the radiation end to realize circulation heating and heat supply.
The foregoing describes the embodiments of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to fall within the scope of the present utility model.
Claims (4)
1. The utility model provides a municipal central heating system's steam cycle uses system, includes municipal heat source, heat pump set, fresh air unit and radiation end, the radiation end includes many heating pipelines, water knockout drum and the water collector of being connected with each heating pipeline, be equipped with first heat exchanger between radiation end and the municipal heat source, the high temperature side heat exchange pipeline entry of first heat exchanger utilizes municipal heating pipeline to be connected with municipal heat source, and the high temperature side heat exchange pipeline export of first heat exchanger utilizes return line to be connected with municipal heat source, its characterized in that: the utility model discloses a steam boiler, including fresh air handling unit, return line, condensate water collection device, return pump, fresh air handling unit, return line, pipeline and condensate water collection device, the return line is equipped with the end-to-end connection thermal deaerator that carries shunt and carry shunt, thermal deaerator's export pipeline connection filter, the export pipeline of filter and steam boiler's water inlet connection, steam boiler's steam outlet pipeline connection vapor compression pump, the export pipeline of vapor compression pump is connected with the heat transfer pipeline entry of fresh air heat exchanger in the fresh air handling unit, the heat transfer pipeline export utilizes the pipeline to be connected with steam service equipment, steam service equipment is connected with condensate water collection device, condensate water collection device's output pipeline end-to-end connection return pump, the export pipeline of return pump communicates with steam boiler's entry.
2. The steam cycle using system of a municipal central heating system according to claim 1, wherein: the outlet pipeline of the backwater pump is additionally provided with a branch connected with the return pipeline of the municipal heat source.
3. The steam cycle using system of a municipal central heating system according to claim 1, wherein: the heat pump unit is characterized in that a second heat exchanger is arranged between the heat pump unit and the radiation tail end, the inlet of a low-temperature side heat exchange pipeline of the first heat exchanger is connected with the outlet of the water collector, the outlet of the low-temperature side heat exchange pipeline of the first heat exchanger is connected with the inlet of the water separator by a branch pipeline, the outlet of the low-temperature side heat exchange pipeline of the second heat exchanger is connected with the inlet of the water separator by a secondary pipeline, the inlet of a high-temperature side heat exchange pipeline of the second heat exchanger is connected with the heat pump unit by a heat pump machine heating pipeline, and the outlet of the high-temperature side heat exchange pipeline of the second heat exchanger is connected with the heat pump unit by a second reflux pipeline.
4. The steam cycle using system of a municipal central heating system according to claim 1, wherein: the heat exchange pipeline of the fresh air heat exchanger is connected with a drain valve and is connected with a condensate water receiving pipeline through the drain valve, and the tail end of the condensate water receiving pipeline is communicated with the output pipeline of the condensate water collecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321107079.9U CN219656171U (en) | 2023-05-10 | 2023-05-10 | Steam recycling system of municipal central heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321107079.9U CN219656171U (en) | 2023-05-10 | 2023-05-10 | Steam recycling system of municipal central heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219656171U true CN219656171U (en) | 2023-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321107079.9U Active CN219656171U (en) | 2023-05-10 | 2023-05-10 | Steam recycling system of municipal central heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219656171U (en) |
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2023
- 2023-05-10 CN CN202321107079.9U patent/CN219656171U/en active Active
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