CN217714878U - Fluidized bed solid particle heat storage and release system based on pneumatic conveying - Google Patents
Fluidized bed solid particle heat storage and release system based on pneumatic conveying Download PDFInfo
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- CN217714878U CN217714878U CN202221640918.9U CN202221640918U CN217714878U CN 217714878 U CN217714878 U CN 217714878U CN 202221640918 U CN202221640918 U CN 202221640918U CN 217714878 U CN217714878 U CN 217714878U
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Abstract
The utility model belongs to the technical field of the heat-retaining, in particular to fluidized bed solid particle heat storage and release system based on air conveying. The utility model comprises a heat storage exchanger and a heat release exchanger, wherein the heat storage exchanger is connected with a high-temperature solid particle storage tank, and the heat release exchanger is connected with a low-temperature solid particle storage tank; the device is characterized by further comprising a pneumatic conveying system, the pneumatic conveying system is connected with a gas-gas heat exchanger, the gas-gas heat exchanger is respectively connected with a heat storage feeding pipeline and a heat release feeding pipeline, the heat storage feeding pipeline is connected to the heat storage heat exchanger after passing through a low-temperature solid particle storage tank, the heat release feeding pipeline is connected to the heat release heat exchanger after passing through a high-temperature solid particle storage tank, the heat storage heat exchanger is connected with a low-temperature cyclone separation device, the heat release heat exchanger is connected with a high-temperature cyclone separation device, and the gas pipelines of the low-temperature cyclone separation device and the high-temperature cyclone separation device are connected to the gas-gas heat exchanger after being collected. The utility model provides a fluidized bed solid particle heat storage and release system based on pneumatic conveying.
Description
Technical Field
The utility model belongs to the technical field of the heat-retaining, in particular to fluidized bed solid particle heat storage and release system based on air conveying.
Background
The proportion of the installed capacity of renewable energy in fourteen-five plans is greatly improved, and a trend is that a thermal power generating unit is used as a peak shaving unit and is provided with an energy storage device. As a peak shaving unit, the load fluctuation of a thermal generator set is large, and the heat supply quality (steam flow, temperature, pressure and the like) is difficult to ensure on the premise of ensuring that the generating power of the unit meets the power grid dispatching by adopting the traditional steam extraction heat supply mode. The thermal and electric loads of the thermal power generating unit can be partially decoupled through heat storage. At the time of an electric load peak, converting the surplus steam heat of the unit into heat energy of a heat storage medium for storage; and when the electric load is in a valley or a heat supply peak, the heat energy of the heat storage medium is released to realize external heat supply. Therefore, the operation mode of the thermal power plant is more flexible, and the capability of participating in deep peak regulation is improved.
The solid particles are used as a heat storage material which is low in cost, easy to obtain, resistant to temperature up to 1000 ℃, stable in performance and easy to store, has a wide heat storage temperature range and a simple heat storage principle, and can be used in the large-scale high-temperature heat storage fields of thermoelectric decoupling, deep peak regulation, industrial waste heat utilization and the like. In the solid particle heat storage technology, a fluidized bed heat exchanger is mostly adopted to enhance the heat exchange between the solid particles and a heat exchange working medium, and a bucket elevator is adopted to realize the transportation of the solid particles among various devices, but the problems of large heat loss of fluidized wind and heat, high mechanical failure rate of the high-temperature bucket elevator and the like exist. Pneumatic transport of solid particles also suffers from heat loss from the particles due to the low temperature of the transport gas.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a fluidized bed solid particle heat storage and release system based on pneumatic transmission, which makes full use of the waste heat of exhausted high-temperature fluidized wind.
The utility model discloses the technical scheme who adopts does:
a fluidized bed solid particle heat storage and release system based on pneumatic conveying comprises a heat storage heat exchanger and a heat release heat exchanger, wherein a solid outlet of the heat storage heat exchanger is connected with a high-temperature solid particle storage tank through a pipeline, and a solid outlet of the heat release heat exchanger is connected with a low-temperature solid particle storage tank through a pipeline; the heat storage and heat release device is characterized by further comprising a pneumatic conveying system, an outlet of the pneumatic conveying system is connected with a gas-gas heat exchanger through a pipeline, an outlet pipeline of the gas-gas heat exchanger is connected with a heat storage and feeding pipeline and a heat release and feeding pipeline respectively, the heat storage and feeding pipeline is connected to the heat storage and feeding heat exchanger after passing through a low-temperature solid particle storage tank, the heat release and feeding pipeline is connected to the heat release and feeding heat exchanger after passing through a high-temperature solid particle storage tank, the top of the heat storage and feeding heat exchanger is connected with a low-temperature cyclone separating device through a pipeline, the top of the heat release and heat exchanger is connected with a high-temperature cyclone separating device through a pipeline, and a gas outlet pipeline of the low-temperature cyclone separating device and a gas outlet pipeline of the high-temperature cyclone separating device are converged and then connected to the gas-gas heat exchanger.
When the steam of the cogeneration unit is rich and the heat storage feeding pipeline is opened, the gas source sent by the pneumatic conveying system passes through the gas-gas heat exchanger and then conveys the low-temperature solid particles in the low-temperature solid particle storage tank to the heat storage heat exchanger. In the heat storage heat exchanger, high-temperature steam is cooled to low-temperature steam through heat exchange and returns to a unit or supplies heat to the outside, and heated solid particles are stored in a high-temperature storage tank.
When the unit is in a low-load operation condition and the steam extraction is difficult to meet the heat supply requirement, the heat release feeding pipeline is opened, and the air source sent out by the pneumatic conveying system conveys high-temperature solid particles in the low-temperature solid particle storage tank to the heat release heat exchanger after passing through the air-air heat exchanger. In the heat release heat exchanger, the high-temperature solid particles heat part of the unit feed water into steam and serve as a steam source for supplying heat to the outside, so that the heat of the fluidized solid particles is transferred to the feed water, and the cooled high-temperature solid particles are changed into low-temperature solid particles and stored in a low-temperature storage tank.
The utility model discloses a cyclone is all connected with exothermic heat exchanger to the heat-retaining heat exchanger, and the high temperature fluidization wind that separates through low temperature cyclone or high temperature cyclone gets into the heating of gas heat exchanger and comes from pneumatic conveying system's air supply to reduce the heat loss of solid particle in transportation process, realize the recycle of waste heat. The utility model discloses a configuration air conveyor is used for fluidized bed solid particle to store the heat system to through configuration gas-gas heat exchanger recovery part waste heat, the solid particle stores up the heat system and can make the unit externally supply vapour ability to maintain stably, and the heating capacity receives the influence reduction of unit electricity generation load, and the operation flexibility of combined heat and power generation unit obtains improving.
As the utility model discloses a preferred scheme, there is exothermic feeder, exothermic feeding pipe connection exothermic feeder in the bottom of high temperature solid particle storage tank through the pipe connection. When the heat release feeding device is opened, the gas source in the heat release feeding pipeline can send the solid particles to the heat release heat exchanger.
As the preferred scheme of the utility model, there is heat-retaining feeder bottom of low temperature solid particle storage tank, heat-retaining feeding tube connect heat-retaining feeder through the pipe connection. When the heat storage feeding device is opened, the gas source in the heat storage feeding pipeline can send the solid particles to the heat storage heat exchanger.
As the utility model discloses a preferred scheme, still be connected with exothermic buffer tank on the heat-releasing conveying pipeline, exothermic buffer tank is located exothermic heat exchanger top. The heat release buffer tank can enable the solid particles to flow into the heat release heat exchanger at a constant speed, so that the solid particles can exchange heat uniformly in the heat release heat exchanger.
As the utility model discloses a preferred scheme, still be connected with the heat-retaining buffer tank on the heat-retaining conveying line, the heat-retaining buffer tank is located heat-retaining heat exchanger top. The heat storage buffer tank can enable the solid particles to flow into the heat storage heat exchanger at a constant speed, so that the solid particles exchange heat in the heat storage heat exchanger uniformly.
As the utility model discloses a preferred scheme, be connected with exothermic control flap on the exothermic feeding pipeline, be connected with heat-retaining control flap on the heat-retaining feeding pipeline. When the solid particles are heated by the unit extraction steam, the heat storage control valve is opened, and the heat release control valve is closed. When the high-temperature solid particles are used for heating the unit part feed water into steam, the heat release control valve is opened, and the heat storage control valve is closed.
As the preferred scheme of the utility model, still be connected with the exhaust pipe on the gas-gas heat exchanger. The high-temperature gas after passing through the high-temperature cyclone separation device or the low-temperature cyclone separation device enters the gas-gas heat exchanger to fully exchange heat with the conveying gas from the pneumatic conveying system in the gas-gas heat exchanger, the pneumatic conveying air temperature is raised, and the gas after passing through the cyclone separation device is cooled and then is discharged from an exhaust pipeline.
As the preferred scheme of the utility model, be connected with high temperature steam admission pipeline and low temperature steam discharge pipeline on the heat-retaining heat exchanger. The heat storage heat exchanger heats low-temperature solid particles into high-temperature solid particles by using unit steam extraction entering from a high-temperature steam inlet pipeline. The high-temperature steam is cooled to be low-temperature steam through heat exchange, and the low-temperature steam returns to the unit or supplies heat to the outside through a low-temperature steam discharge pipeline.
As the preferred scheme of the utility model, be connected with feedwater entering pipeline and steam discharging pipeline on the heat release heat exchanger. In the heat release heat exchanger, the high-temperature solid particles heat the water supply of the unit part into steam and serve as a steam source for supplying heat to the outside, so that the heat of the fluidized solid particles is transferred to the water supply.
The utility model has the advantages that:
1. the utility model discloses a cyclone is all connected to heat-retaining heat exchanger and exothermic heat exchanger, and the high temperature fluidization wind that separates through low temperature cyclone or high temperature cyclone gets into the air supply that the heating of gas heat exchanger comes from pneumatic conveying system to reduce the heat loss of solid particle in transportation process, realize the recycle of waste heat.
2. The utility model discloses a configuration air conveyor is used for fluidized bed solid particle to store the heat system to through configuration gas-gas heat exchanger recovery part waste heat, the solid particle stores up the heat system and can make the unit externally supply vapour ability to maintain stably, and the heating capacity receives the influence reduction of unit electricity generation load, and the operation flexibility of combined heat and power generation unit obtains improving.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a heat storage heat exchanger; 2-a heat-rejecting heat exchanger; 3-a high-temperature solid particle storage tank; 4-a low-temperature solid particle storage tank; 5-a pneumatic conveying system; 6-gas heat exchanger; 7-heat storage feeding pipeline; 8-a heat release feeding pipeline; 11-a cryogenic cyclone separation unit; 12-high temperature steam inlet pipeline; 13-low temperature steam discharge line; 21-high temperature cyclone separation device; 22-a feed water inlet line; 23-a steam discharge line; 31-an exothermic feed device; 41-heat storage feeding device; 61-an exhaust line; 71-a heat storage buffer tank; 72-heat storage control valve; 81-heat release buffer tank; 82-exotherm control valve.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1, the fluidized bed solid particle heat storage and release system based on pneumatic conveying of the embodiment includes a heat storage heat exchanger 1 and a heat release heat exchanger 2, a solid outlet of the heat storage heat exchanger 1 is connected to a high-temperature solid particle storage tank 3 through a pipeline, and a solid outlet of the heat release heat exchanger 2 is connected to a low-temperature solid particle storage tank 4 through a pipeline; still include pneumatic conveying system 5, pneumatic conveying system 5's export has gas heat exchanger 6 through the pipe connection, gas heat exchanger 6's export pipeline is connected with heat-retaining feeding pipeline 7 and exothermic feeding pipeline 8 respectively, heat-retaining feeding pipeline 7 is connected to heat-retaining heat exchanger 1 behind low temperature solid particle storage tank 4, exothermic feeding pipeline 8 is connected to exothermic heat exchanger 2 behind high temperature solid particle storage tank 3, the top of heat-retaining heat exchanger 1 has low temperature cyclone 11 through the pipe connection, exothermic heat exchanger 2's top has high temperature cyclone 21 through the pipe connection, the gas outlet pipeline of low temperature cyclone 11 and the gas outlet pipeline of high temperature cyclone 21 collect the back and are connected to gas heat exchanger 6.
When the heat storage and feeding pipeline 7 is opened in a steam rich period of the cogeneration unit, the gas source sent by the pneumatic conveying system 5 conveys the low-temperature solid particles in the low-temperature solid particle storage tank 4 to the heat storage heat exchanger 1 after passing through the gas-gas heat exchanger 6. In the heat storage and exchange device 1, the high-temperature steam is cooled to be low-temperature steam through heat exchange and returns to the unit or supplies heat to the outside, and the heated solid particles are stored in the high-temperature storage tank.
When the unit is in a low-load operation condition and the steam extraction is difficult to meet the heat supply requirement, the heat release and feed pipeline 8 is opened, and the air source sent out by the pneumatic conveying system 5 conveys the high-temperature solid particles in the high-temperature solid particle storage tank 3 to the heat release heat exchanger 2 after passing through the gas-gas heat exchanger 6. In the heat release heat exchanger 2, the high-temperature solid particles heat part of the unit feed water into steam and serve as a steam source for supplying heat to the outside, so that the heat of the fluidized solid particles is transferred to the feed water, and the cooled high-temperature solid particles are changed into low-temperature solid particles and stored in a low-temperature storage tank.
The utility model discloses a heat-retaining heat exchanger 1 all connects cyclone with exothermic heat exchanger 2, and the high temperature fluidization wind that separates through low temperature cyclone 11 or high temperature cyclone 21 gets into the air supply that the heating of gas heat exchanger 6 comes from pneumatic conveying system 5 to reduce the heat loss of solid particle in transportation process, realize the recycle of waste heat. The utility model discloses a configuration air conveyor is used for fluidized bed solid particle to store the heat system to through 6 recovery part waste heats of configuration gas-gas heat exchanger, the solid particle stores up the heat system and can make the unit externally supply vapour ability to maintain stably, and the heating capacity receives the influence reduction of unit electricity generation load, and the operation flexibility of cogeneration unit obtains improving.
Wherein, the bottom of the high-temperature solid particle storage tank 3 is connected with a heat release feeding device 31 through a pipeline, and the heat release feeding pipeline 8 is connected with the heat release feeding device 31. When the exothermic feed device 31 is opened, the gas source in the exothermic feed line 8 is able to feed the solid particles to the exothermic heat exchanger 2. The bottom of the low-temperature solid particle storage tank 4 is connected with a heat storage feeding device 41 through a pipeline, and a heat storage feeding pipeline 7 is connected with the heat storage feeding device 41. When the heat storage feeding device 41 is opened, the gas source in the heat storage feeding pipeline 7 can send the solid particles to the heat storage heat exchanger 1.
The heat release feeding pipeline 8 is also connected with a heat release buffer tank 81, and the heat release buffer tank 81 is positioned above the heat release heat exchanger 2. The heat release buffer tank 81 enables the solid particles to uniformly flow into the heat release heat exchanger 2, so that the solid particles can uniformly exchange heat in the heat release heat exchanger 2. The heat storage feeding pipeline 7 is also connected with a heat storage buffer tank 71, and the heat storage buffer tank 71 is positioned above the heat storage heat exchanger 1. The heat storage buffer tank 71 enables solid particles to uniformly flow into the heat storage heat exchanger 1, so that the solid particles can uniformly exchange heat in the heat storage heat exchanger 1.
The heat release feeding pipeline 8 is connected with a heat release control valve 82, and the heat storage feeding pipeline 7 is connected with a heat storage control valve 72. When the solid particles are heated by the unit extraction, the heat accumulation control valve 72 is opened and the heat release control valve 82 is closed. When the unit section feed water is heated to steam with high temperature solid particles, the heat release control valve 82 is opened and the heat storage control valve 72 is closed.
The gas-gas heat exchanger 6 is also connected with an exhaust pipeline 61. The high-temperature gas passing through the high-temperature cyclone separation device 21 or the low-temperature cyclone separation device 11 enters the gas-gas heat exchanger 6 to be mixed with the wind from the pneumatic conveying system 5, so that the temperature of the pneumatic conveying wind is increased.
Specifically, a high-temperature steam inlet pipeline 12 and a low-temperature steam outlet pipeline 13 are connected to the heat storage heat exchanger 1. The heat storage heat exchanger 1 heats the low-temperature solid particles into high-temperature solid particles by using unit extraction steam entering from a high-temperature steam inlet pipeline 12. The high-temperature steam is cooled to low-temperature steam through heat exchange, and the low-temperature steam returns to the unit or supplies heat to the outside through a low-temperature steam discharge pipeline 13.
The heat-releasing heat exchanger 2 is connected with a feed water inlet pipeline 22 and a steam outlet pipeline 23. In the heat release heat exchanger 2, the high-temperature solid particles heat part of the feed water of the unit into steam and serve as a steam source for supplying heat to the outside, so that the heat of the fluidized solid particles is transferred to the feed water.
The embodiment is as follows:
and during the steam-rich period such as the power generation peak of the cogeneration unit, part of the steam turbine is extracted through the bypass. High-temperature steam enters the heat storage heat exchanger 1 through the high-temperature steam inlet pipeline 12, and returns to the unit thermodynamic system after low-temperature solid particles are heated. The low-temperature solid particles (100-200 ℃) stored in the low-temperature solid particle storage tank 4 are lifted by pneumatic transmission and then enter a low-temperature cyclone separator. The low-temperature solid particles (100-200 ℃) in the low-temperature solid particle storage tank 4 enter a pneumatic conveying pipeline through a heat storage feeding device 41. The low-temperature solid particles enter the heat storage heat exchanger 1, are heated by high-temperature steam and then are heated to become high-temperature solid particles (300-400 ℃), and then enter the high-temperature solid particle storage tank 3 for storage.
When the low-load operation of the cogeneration unit cannot meet the heat supply requirement, part of the feed water (1-2mpa, 100-200 ℃) of the unit enters the heat release heat exchanger 2 through the feed water inlet pipeline 22 and is heated by the high-temperature solid particles from the high-temperature solid particle storage tank 3 to provide superheated steam (1-2mpa, 200-300 ℃) for the outside. The high-temperature solid particles (300-400 ℃) stored in the high-temperature solid particle storage tank 3 are lifted by pneumatic transmission and then enter a high-temperature cyclone separator. The high-temperature solid particles enter the heat release heat exchanger 2 to exchange heat with working media in the pipe, the temperature of the high-temperature solid particles is reduced, and the high-temperature solid particles are changed into low-temperature solid particles (100-200 ℃) and enter the low-temperature solid particle storage tank 4 to be stored.
After flowing through the heat storage heat exchanger 1 or the heat release heat exchanger 2, the fluidized wind carrying a small amount of solid particles is discharged from a fluidized wind outlet of the heat storage heat exchanger 1 or the heat release heat exchanger 2 and respectively enters the low-temperature cyclone separation device 11 and the high-temperature cyclone separation device 21, the separated solid particles are returned to the heat storage heat exchanger 1 or the heat release heat exchanger 2, and the separated high-temperature fluidized wind flows together and then enters the gas-gas heat exchanger 6 to heat a gas source from the pneumatic conveying system 5.
The fluidized bed solid particle heat storage and exchange system scheme based on the pneumatic conveying system 5 can realize heat storage and heat release functions simultaneously, is more continuous and stable in material conveying, can realize the heat and power decoupling of a cogeneration unit, and improves the flexibility of the unit.
The high-temperature fluidized air discharged from the fluidized air outlet of the heat storage/release heat exchanger 2 heats the air from the pneumatic conveying system 5, and the heat loss of the solid particles is reduced by utilizing the waste heat.
The fluidized bed solid particle heat storage and exchange system based on pneumatic conveying of this embodiment, conveying system can arrange in a flexible way, and the fault rate is low.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all falling within the technical solution of the present invention, all fall within the protection scope of the present invention.
Claims (9)
1. A fluidized bed solid particle heat storage and release system based on pneumatic conveying is characterized in that: the device comprises a heat storage heat exchanger (1) and a heat release heat exchanger (2), wherein a solid outlet of the heat storage heat exchanger (1) is connected with a high-temperature solid particle storage tank (3) through a pipeline, and a solid outlet of the heat release heat exchanger (2) is connected with a low-temperature solid particle storage tank (4) through a pipeline; the heat-storage type air conditioner is characterized by further comprising a pneumatic conveying system (5), an outlet of the pneumatic conveying system (5) is connected with an air-air heat exchanger (6) through a pipeline, an outlet pipeline of the air-air heat exchanger (6) is connected with a heat-storage feeding pipeline (7) and a heat-release feeding pipeline (8) respectively, the heat-storage feeding pipeline (7) is connected to the heat-storage heat exchanger (1) through a low-temperature solid particle storage tank (4), the heat-release feeding pipeline (8) is connected to the heat-release heat exchanger (2) through a high-temperature solid particle storage tank (3), the top of the heat-storage heat exchanger (1) is connected with a low-temperature cyclone separation device (11) through a pipeline, the top of the heat-release heat exchanger (2) is connected with a high-temperature cyclone separation device (21) through a pipeline, and a gas outlet pipeline of the low-temperature cyclone separation device (11) and a gas outlet pipeline of the high-temperature cyclone separation device (21) are connected to the air-air heat exchanger (6) after being collected.
2. The pneumatic conveying-based fluidized bed solid particle heat storage and release system as claimed in claim 1, wherein: the bottom of the high-temperature solid particle storage tank (3) is connected with a heat release feeding device (31) through a pipeline, and a heat release feeding pipeline (8) is connected with the heat release feeding device (31).
3. The pneumatic conveying-based fluidized bed solid particle heat storage and release system as claimed in claim 1, wherein: the bottom of the low-temperature solid particle storage tank (4) is connected with a heat storage feeding device (41) through a pipeline, and the heat storage feeding pipeline (7) is connected with the heat storage feeding device (41).
4. The pneumatic conveying-based fluidized bed solid particle heat storage and release system as claimed in claim 1, wherein: the heat release feeding pipeline (8) is also connected with a heat release buffer tank (81), and the heat release buffer tank (81) is positioned above the heat release heat exchanger (2).
5. The pneumatic conveying-based fluidized bed solid particle heat storage and release system as claimed in claim 1, wherein: the heat storage feeding pipeline (7) is further connected with a heat storage buffer tank (71), and the heat storage buffer tank (71) is located above the heat storage heat exchanger (1).
6. The pneumatic conveying-based fluidized bed solid particle heat storage and release system as claimed in claim 1, wherein: the heat release feeding pipeline (8) is connected with a heat release control valve (82), and the heat storage feeding pipeline (7) is connected with a heat storage control valve (72).
7. The pneumatic conveying-based fluidized bed solid particle heat storage and release system as claimed in claim 1, wherein: the gas-gas heat exchanger (6) is also connected with an exhaust pipeline (61) for leading gas to a subsequent gas treatment system or exhausting the gas into the atmosphere.
8. The pneumatic conveying-based fluidized bed solid particle heat storage and release system as claimed in claim 1, wherein: the heat storage heat exchanger (1) is connected with a high-temperature steam inlet pipeline (12) and a low-temperature steam outlet pipeline (13).
9. The pneumatic conveying-based fluidized bed solid particle heat storage and release system as claimed in claim 1, wherein: and the heat release heat exchanger (2) is connected with a feed water inlet pipeline (22) and a steam discharge pipeline (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221640918.9U CN217714878U (en) | 2022-06-28 | 2022-06-28 | Fluidized bed solid particle heat storage and release system based on pneumatic conveying |
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| CN202221640918.9U CN217714878U (en) | 2022-06-28 | 2022-06-28 | Fluidized bed solid particle heat storage and release system based on pneumatic conveying |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115507412A (en) * | 2022-11-21 | 2022-12-23 | 杭州圣钘能源有限公司 | Heat supply system |
| CN115597106A (en) * | 2022-11-21 | 2023-01-13 | 杭州圣钘能源有限公司（Cn） | Heat supply system |
-
2022
- 2022-06-28 CN CN202221640918.9U patent/CN217714878U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115507412A (en) * | 2022-11-21 | 2022-12-23 | 杭州圣钘能源有限公司 | Heat supply system |
| CN115597106A (en) * | 2022-11-21 | 2023-01-13 | 杭州圣钘能源有限公司（Cn） | Heat supply system |
| CN115507412B (en) * | 2022-11-21 | 2023-03-14 | 杭州圣钘能源有限公司 | Heat supply system |
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