CN217763370U - Zero-carbon heat storage steam supply system - Google Patents
Zero-carbon heat storage steam supply system Download PDFInfo
- Publication number
- CN217763370U CN217763370U CN202222321989.9U CN202222321989U CN217763370U CN 217763370 U CN217763370 U CN 217763370U CN 202222321989 U CN202222321989 U CN 202222321989U CN 217763370 U CN217763370 U CN 217763370U
- Authority
- CN
- China
- Prior art keywords
- steam
- heat
- heat storage
- pipeline
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The utility model discloses a zero-carbon heat storage steam supply system, which comprises a high-voltage electric heating system, a solid heat storage system, a steam generation system, a water supply system and a standby electric steam boiler; the system converts the cheap off-peak electricity at night into heat energy to be stored in the large-scale heat storage material, releases the energy in the daytime to generate industrial steam, and can effectively avoid the problems that a coal-fired boiler supplies the steam to generate a large amount of pollutants, a gas-fired boiler independently uses the supplied steam, and the cost is high. By configuring the solid heat storage system and the standby electric steam boiler, the system can realize three different heating modes. Different heat supply modes are freely switched, heat storage and heat supply of the system can be reasonably configured, the operating cost of the system is reduced, and diversification, stabilization and simplification of control of heat supply are realized.
Description
Technical Field
The utility model relates to an energy storage heat supply field, concretely relates to zero carbon heat-retaining steam supply system.
Background
At present, the proportion of the traditional coal-fired boiler used in China is still relatively large, the traditional coal-fired boiler brings certain degree of ecological pollution, and the industrial steam field is slowly replaced by a gas-fired boiler or an electric boiler. However, although electric heating has the advantages of convenience in use and cleanliness, the problems of high cost, limited heat storage capacity, long production period, incapability of realizing large-capacity heat storage and the like exist.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be not enough to prior art, the utility model discloses the problem that plans to solve designs a zero carbon heat-retaining steam supply system, utilizes the low ebb electricity that the night is cheap to change into heat energy and stores it in scale heat-retaining material, carries out energy release in the daytime, produces industrial steam, can effectively avoid coal fired boiler to supply steam to produce a large amount of pollutants and the high scheduling problem of exclusive use gas boiler steam supply steam cost.
The technical scheme adopted by the utility model for solving the technical problems is to provide a zero-carbon heat storage steam supply system, which is characterized by comprising a high-voltage electric heating system, a solid heat storage system, a steam generation system, a water supply system and a standby electric steam boiler;
the high-voltage electric heating system comprises a high-voltage power distribution cabinet and an electric heating wire, wherein the voltage output end of the high-voltage power distribution cabinet is connected with the electric connection end of the electric heating wire through a conducting wire; the heating end of the electric heating wire is arranged in the solid heat storage system; the solid heat storage system comprises a heat insulation shell and a heat storage material, wherein the heat insulation shell is provided with an electric heating wire mounting hole, a low-temperature air inlet and a high-temperature air outlet, and the rest parts are sealed; the electric heating wire is fixedly connected with the heat insulation shell through an electric heating wire mounting hole; the heat storage material is a heat storage brick with a heat taking hole, the heat storage brick is fixedly arranged in the heat insulation shell, the direction of the heat taking hole is opposite to the low-temperature air inlet and the high-temperature air outlet, and the heat storage brick at the mounting hole of the electric heating wire is provided with a through heating hole for accommodating the heating end of the electric heating wire;
the steam generation system comprises a deaerator, a preheater, an evaporator and a steam drum, and the water supply system consists of a softened water treatment device; the lower part of the deaerator is a tank body, the upper part of the deaerator is a heating part with an air outlet hole at the top end, and the bottom of the heating part is connected with the top of the tank body; the deaerator is provided with two water inlets, an air inlet and a water outlet, and the rest parts are sealing structures; the first water inlet is arranged at the upper end of the heating part, the air inlet is arranged at the lower end of the heating part, the water outlet is arranged at the lower end of the tank body, and the second water inlet is arranged at the upper end of the tank body; the preheater is of a shell-and-tube structure, a water inlet and a water outlet are arranged on a tube pass, and an air inlet and an air outlet are arranged on a shell pass; the evaporator is of a kettle-type structure, a water inlet and an air outlet are arranged on the inner-layer tank body, and a hot air circulation space is formed between the outer-layer shell and the inner-layer tank body; the hot air circulation space is provided with a circulating air input port and a circulating air output port, and the rest parts are sealing structures;
the water outlet pipeline of the softened water treatment device is connected with a first water inlet of the deaerator; a water feeding pump is installed on a water outlet pipeline of the deaerator, the tail end of the water outlet pipeline is provided with two branch pipelines which are respectively connected with a water inlet of the preheater and a water inlet of the standby electric steam boiler, and the two branch pipelines are respectively provided with a flow valve; the water outlet of the preheater is connected with the first input port of the steam drum through a pipeline, the downcomer of the steam drum is connected with the water inlet of the evaporator, and the air outlet of the evaporator is connected with the second input port of the steam drum through a steam raising pipe; the saturated steam output port of the steam pocket is connected with three pipelines, the other end of the first pipeline is connected with the air inlet of the preheater, the other end of the second pipeline is connected with the air inlet of the deaerator, the other end of the third pipeline is connected with the saturated steam application end, and the third pipeline is provided with a flow valve; the air outlet of the preheater is connected with the second water inlet of the deaerator through a pipeline; a saturated steam output port of the standby electric steam boiler is connected with a saturated steam application end through a pipeline, and a flow valve is installed on the pipeline; the circulating air input port of the evaporator is connected with the high-temperature air outlet on the heat insulation shell through a pipeline, the circulating air output port of the evaporator is connected with the low-temperature air inlet on the heat insulation shell of the solid heat storage system through a pipeline, and a circulating fan is arranged on any one of the two pipelines.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The solid heat storage brick has the advantages of low manufacturing cost, short production period, large specific heat, high thermal stability, heat conductivity coefficient reaching 16.9W/(m x k), long service life and the like. Because the iron ore and the waste magnesia brick of the cement kiln are about 320 yuan/ton, the cost is low; the traditional high-temperature sintering process is not needed, the material can be put into use only after being dried, and the production period is short.
(2) The utility model discloses a configuration solid heat-retaining system and stand-by electric steam boiler for this system can realize the heat supply mode of three kinds of differences, and different heat supply mode switch freely, and the heat-retaining heat supply of rational configuration system has reduced the working costs of system, has realized heat supply pluralism, stabilization, control simplification.
(3) The utility model discloses use the heat-conducting medium of air as solid heat-retaining system, compare with the conduction oil of conventional adoption, the highest use of conventional conduction oil temperature is 450 ℃, however the air temperature usable range is wider, and the highest 800 ℃.
(4) The low-ebb electricity is used for supplying heat to the system, so that the peak clipping and valley filling can be realized, clean wind and light electricity can be consumed, and no carbon and no pollution are caused. The utility model discloses a system utilizes low price low ebb electricity, and energy utilization efficiency is high, can effectively reduce the running cost who supplies steam. Through preliminary calculation, taking Guangzhou as an example, the current low-valley low-price electricity price is about 0.335 yuan/kWh, the peak electricity price is about 1.127 yuan/kWh, and assuming that the electricity consumption per ton of steam is about 0.7MWh, 554.4 yuan can be saved per ton of steam after the technology is used.
Drawings
Fig. 1 is a schematic view of an embodiment of the zero-carbon heat-storage steam supply system of the present invention.
In the figure, 1, a high-voltage distribution system; 2. a solid heat storage system; 3. a deaerator; 4. a preheater; 5. an evaporator; 6. a steam drum; 7. a standby electric steam boiler; 8. a feed pump; 9. a circulating fan; 10. a water supply system.
Detailed Description
The present invention will be further explained with reference to the following embodiments and accompanying drawings. The specific examples are only used to illustrate the present invention in further detail, and do not limit the scope of the present invention.
The utility model provides a zero carbon heat-retaining steam supply system, including high-pressure electric heating system 1, solid heat-retaining system 2, steam generation system, water supply system 10 and stand-by electric steam boiler 7.
The high-voltage electric heating system 1 comprises a high-voltage power distribution cabinet and an electric heating wire, wherein the electric heating wire is made of a chromium-nickel alloy material, the high-temperature resistance requirement of the material per se reaches above 1300 ℃, the high-voltage electric heating system has the advantages of high temperature resistance, corrosion resistance and the like, the materials such as Cr20Ni80, cr30Ni70, cr15Ni60, cr20Ni35 and the like can be selected, and Cr20Ni80 is preferred. The voltage output end of the high-voltage power distribution cabinet is connected with the power connection end of the electric heating wire through a conductor wire, and 10kV high-voltage electricity is provided for the electric heating wire. The heating end of the electric heating wire is arranged in the solid heat storage system. After the electric heating wire is electrified, the generated heat exchanges heat with the solid heat storage system, so that the temperature of the solid heat storage system is increased. The solid heat storage system comprises a heat insulation shell and a heat storage material, wherein the heat insulation shell is provided with an electric heating wire mounting hole, a low-temperature air inlet and a high-temperature air outlet, and the rest parts are sealed; the electric heating wire is fixedly connected with the heat insulation shell through the electric heating wire mounting hole. The heat storage material is a heat storage brick with a heat taking hole, the heat storage brick is fixedly arranged in the heat insulation shell, the direction of the heat taking hole is opposite to the low-temperature air inlet and the high-temperature air outlet, and the heat storage brick at the position of the electric heating wire mounting hole is provided with a through heating hole for accommodating the heating end of the electric heating wire.
As an embodiment, the heating end of the electric heating wire is of a spiral structure, and the heating holes in the heat storage bricks are threaded holes matched with the outer surfaces of the heat storage bricks, so that the heating end of the electric heating wire is tightly attached to the heat storage bricks, the contact area is increased, and the heat transfer capacity is improved.
As an embodiment, the heat storage brick is formed by assembling and combining a plurality of blocks, iron ore and waste magnesium iron bricks are preferably selected as preparation materials of the heat storage brick, the sizes of the heat storage brick are mainly 90# magnesium iron bricks, 92# magnesium iron bricks and 95# magnesium iron bricks, the heat storage body formed by combining the 92# magnesium iron bricks has better effects of resisting pressure and overcoming self weight under the condition of high temperature, and the heat transfer in the heat storage body and the heat storage effect of the heat storage body are also better.
The steam generation system comprises a deaerator 3, a preheater 4, an evaporator 5 and a steam drum 6, and the water supply system 10 consists of a softened water treatment device, and is HNP-85 in model.
The lower part of the deaerator 3 is a tank body, the upper part of the deaerator is a heating part with an air outlet hole at the top end, and the bottom of the heating part is connected with the top of the tank body; the deaerator is provided with two water inlets, an air inlet and a water outlet, and the rest parts are sealing structures; wherein, first water inlet sets up in the upper end of heating portion, and the air inlet sets up in the lower extreme of heating portion, and the delivery port sets up in the lower extreme of the jar body, and the second water inlet sets up in the upper end of the jar body. The preheater 4 is of a shell-and-tube structure, a water inlet and a water outlet are arranged on a tube pass, and an air inlet and an air outlet are arranged on a shell pass; the evaporator 5 is of a kettle-type structure, a water inlet and an air outlet are formed in the inner-layer tank body, and a hot air circulation space is formed between the outer-layer shell and the inner-layer tank body; the hot air circulation space is provided with a circulating air input port and a circulating air output port, and the rest part is a sealing structure.
The water outlet pipeline of the softened water treatment device is connected with a first water inlet of the deaerator 3; a water feeding pump 8 is installed on a water outlet pipeline of the deaerator 3, the tail end of the water outlet pipeline is provided with two branch pipelines which are respectively connected with a water inlet of the preheater 4 and a water inlet of the standby electric steam boiler 7, and the two branch pipelines are respectively provided with a flow valve. The water outlet of the preheater 4 is connected with the first input port of the steam drum 6 through a pipeline, the downcomer of the steam drum 6 is connected with the water inlet of the evaporator 5, and the air outlet of the evaporator 5 is connected with the second input port of the steam drum 6 through a steam raising pipe; a saturated steam outlet of the steam pocket 6 is connected with three pipelines, the other end of the first pipeline is connected with an air inlet of the preheater 4, the other end of the second pipeline is connected with an air inlet of the deaerator 3, the other end of the third pipeline is connected with a saturated steam application end, and a flow valve is installed on the third pipeline; the air outlet of the preheater 4 is connected with the second water inlet of the deaerator 3 through a pipeline. The saturated steam output port of the standby electric steam boiler 7 is connected with the saturated steam application end through a pipeline, and a flow valve is installed on the pipeline. The circulating air input port of the evaporator 5 is connected with the high-temperature air outlet on the heat insulation shell through a pipeline, the circulating air output port of the evaporator 5 is connected with the low-temperature air inlet on the heat insulation shell of the solid heat storage system 2 through a pipeline, and a circulating fan 9 is installed on any one of the two pipelines. The circulating fan 9 introduces the heat in the solid heat storage system into the hot air circulation space of the evaporator 5 through air, heats the water in the inner tank body, generates saturated steam and conveys the saturated steam to the steam drum 6.
The preheater 4 is shell-and-tube structure, and the demineralized water of 3 inputs of circulation oxygen-eliminating devices in the pipe, the saturated steam of 6 outputs of circulation steam drum in the shell to saturated steam in the shell preheats intraductal water, inputs oxygen-eliminating devices 3 after the saturated steam heat exchange, and low temperature steam or rivers flow in oxygen-eliminating devices 3.
The steam pocket 6 is of a pipe type structure with a built-in steam-water separator, and the model is S-0.75/165.
Temperature sensors are arranged on inlet and outlet pipelines of key equipment such as a water outlet pipeline of the deaerator 3, a saturated steam input pipeline of a shell pass of the preheater 4, a circulating air output pipeline of the evaporator 5 and the like, and are used for detecting the temperature of fluid, and the model is PT100.
The deaerator 3 adopts thermal deaerating equipment, and the working pressure is 0.12MPa (a).
The utility model discloses zero carbon energy storage steam supply system's theory of operation and flow: normal-temperature water flowing out of the softened water treatment device is subjected to deoxidization and preheating by a deaerator 3 and then flows out, the flowing-out water is pressurized by a water feeding pump 8 and then is divided into two parts, one part flows into a preheater 4 from a tube pass inlet of the preheater 4, and flows out from a preheater outlet after being heated to a certain temperature and then enters a steam drum 6 for further heating; wherein, the generated saturated steam is dehydrated and dried in the steam drum 6 through a steam-water separation device to generate dry saturated steam, and the dry saturated steam is output through a saturated steam output port of the steam drum 6; the rest liquid water flows into the evaporator 5 from the steam drum through a downcomer, phase change evaporation is completed in the tube pass of the evaporator 5, the generated saturated steam flows into the steam drum 6 from the outlet of the tube pass of the evaporator 5 through a steam raising pipe, and after being dehydrated and dried by a steam-water separation device in the steam drum, dry saturated steam is generated and is output through a saturated steam output port of the steam drum 6; the other steam enters a standby electric steam boiler 7, is directly heated to required saturated steam and then is sent to a saturated steam application end.
A small amount of saturated steam output by the steam drum 6 enters the preheater 4 through a shell pass inlet of the preheater 4, and liquid water generated after heat exchange and temperature reduction in the preheater 4 enters the deaerator 3; and another small amount of saturated steam output by the steam drum 6 enters the deaerator through the deaerator inlet to meet the thermal deaerating requirement.
As an embodiment, 200 ℃ air flowing out from a shell side outlet of the evaporator 5 is pressurized by the circulating fan 9, then enters the solid heat storage system 2 to be heated, and is heated to 700 ℃, and then flows out from the solid heat storage system 2, enters a shell side inlet of the evaporator 5, and enters the evaporator 5 to exchange heat.
A water outlet pipeline of the softened water treatment device is provided with a water replenishing pump; the evaporator 5 is provided with a continuous sewage draining port and a periodic sewage draining port, and sewage is drained according to the water quality condition when the system operates.
The system working mode is divided into three modes, namely a heat storage and heat release mode, a heat storage and heat release mode and an electric steam boiler direct supply mode.
When the mode work is put while storing: the high-voltage electric heating system 1, the solid heat storage system 2, the steam generation system and the water supply system 10 are all in working states, and the standby electric steam boiler 7 is in a shutdown state;
when the heat storage and non-heat release mode works: the high-voltage electric heating system 1 and the solid heat storage system 2 are in working states, and the steam generation system, the water supply system and the standby electric steam boiler 7 are in shutdown states;
when the electric steam boiler works in a direct supply mode: the high-voltage electric heating system 1, the solid heat storage system 2, the steam generation system and the water supply system are all in a shutdown state, and the standby electric steam boiler 7 is in a working state.
The utility model discloses the nothing is mentioned the part and is applicable to prior art.
Claims (8)
1. A zero-carbon heat storage steam supply system is characterized by comprising a high-voltage electric heating system, a solid heat storage system, a steam generation system, a water supply system and a standby electric steam boiler;
the high-voltage electric heating system comprises a high-voltage power distribution cabinet and an electric heating wire, wherein the voltage output end of the high-voltage power distribution cabinet is connected with the electric connection end of the electric heating wire through a conducting wire; the heating end of the electric heating wire is arranged in the solid heat storage system; the solid heat storage system comprises a heat insulation shell and a heat storage material, wherein the heat insulation shell is provided with an electric heating wire mounting hole, a low-temperature air inlet and a high-temperature air outlet, and the rest parts are sealed; the electric heating wire is fixedly connected with the heat insulation shell through an electric heating wire mounting hole; the heat storage material is a heat storage brick with a heat taking hole, the heat storage brick is fixedly arranged in the heat insulation shell, the direction of the heat taking hole is opposite to the low-temperature air inlet and the high-temperature air outlet, and the heat storage brick at the mounting hole of the electric heating wire is provided with a through heating hole for accommodating the heating end of the electric heating wire;
the steam generation system comprises a deaerator, a preheater, an evaporator and a steam drum, and the water supply system consists of a softened water treatment device; the lower part of the deaerator is a tank body, the upper part of the deaerator is a heating part of which the top end is provided with an air outlet, and the bottom of the heating part is connected with the top of the tank body; the deaerator is provided with two water inlets, an air inlet and a water outlet, and the rest parts are sealing structures; the first water inlet is arranged at the upper end of the heating part, the air inlet is arranged at the lower end of the heating part, the water outlet is arranged at the lower end of the tank body, and the second water inlet is arranged at the upper end of the tank body; the preheater is of a shell-and-tube structure, a water inlet and a water outlet are arranged on a tube pass, and an air inlet and an air outlet are arranged on a shell pass; the evaporator is of a kettle-type structure, a water inlet and an air outlet are arranged on the inner-layer tank body, and a hot air circulation space is formed between the outer-layer shell and the inner-layer tank body; the hot air circulation space is provided with a circulating air input port and a circulating air output port, and the rest parts are sealing structures;
the water outlet pipeline of the softened water treatment device is connected with a first water inlet of the deaerator; a water feeding pump is installed on a water outlet pipeline of the deaerator, the tail end of the water outlet pipeline is provided with two branch pipelines which are respectively connected with a water inlet of the preheater and a water inlet of the standby electric steam boiler, and the two branch pipelines are respectively provided with a flow valve; the water outlet of the preheater is connected with the first input port of the steam drum through a pipeline, the downcomer of the steam drum is connected with the water inlet of the evaporator, and the air outlet of the evaporator is connected with the second input port of the steam drum through a steam raising pipe; the saturated steam output port of the steam pocket is connected with three pipelines, the other end of the first pipeline is connected with the air inlet of the preheater, the other end of the second pipeline is connected with the air inlet of the deaerator, the other end of the third pipeline is connected with the saturated steam application end, and the third pipeline is provided with a flow valve; the air outlet of the preheater is connected with the second water inlet of the deaerator through a pipeline; a saturated steam output port of the standby electric steam boiler is connected with a saturated steam application end through a pipeline, and a flow valve is installed on the pipeline; the circulating air input port of the evaporator is connected with the high-temperature air outlet on the heat insulation shell through a pipeline, the circulating air output port of the evaporator is connected with the low-temperature air inlet on the heat insulation shell of the solid heat storage system through a pipeline, and a circulating fan is arranged on any one of the two pipelines.
2. The zero-carbon heat-storage steam supply system as claimed in claim 1, wherein the electric heating wire is made of a chromium-nickel alloy material.
3. The zero-carbon heat-storage steam-supply system as claimed in claim 2, wherein the material of the electric heating wire is any one of Cr20Ni80, cr30Ni70, cr15Ni60 and Cr20Ni 35.
4. The zero-carbon heat-storage steam supply system as claimed in claim 1, wherein the heating end of the electric heating wire is in a spiral structure, and the heating holes on the heat storage brick are threaded holes matched with the outer surface of the heat storage brick.
5. The zero-carbon heat-storage steam supply system as claimed in claim 1, wherein the heat-storage bricks are formed by assembling a plurality of blocks.
6. The zero-carbon heat-storage steam supply system according to any one of claims 1 or 5, wherein the heat storage bricks are made of iron ore or waste magnesium iron bricks with the size of 90# magnesium iron brick, 92# magnesium iron brick or 95# magnesium iron brick.
7. The zero-carbon heat-storage steam supply system according to claim 1, wherein the high-voltage power distribution cabinet provides 10kV high-voltage electricity for the electric heating wire.
8. The zero-carbon heat-storage steam supply system as claimed in claim 1, wherein the steam drum is of a tubular structure with a built-in steam-water separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222321989.9U CN217763370U (en) | 2022-09-01 | 2022-09-01 | Zero-carbon heat storage steam supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222321989.9U CN217763370U (en) | 2022-09-01 | 2022-09-01 | Zero-carbon heat storage steam supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217763370U true CN217763370U (en) | 2022-11-08 |
Family
ID=83881036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222321989.9U Active CN217763370U (en) | 2022-09-01 | 2022-09-01 | Zero-carbon heat storage steam supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217763370U (en) |
-
2022
- 2022-09-01 CN CN202222321989.9U patent/CN217763370U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103836703B (en) | Fused salt regenerative electrochemical heats central heating system | |
| CN104048348B (en) | Valley energy solid heat accumulation and heating device | |
| CN208398186U (en) | Energy storage electric heating equipment | |
| KR101321751B1 (en) | Electric boiler using heat pipe heat exchanger | |
| CN113237369A (en) | Electrothermal transducing device and transducing method of integrated heat storage unit | |
| CN217763370U (en) | Zero-carbon heat storage steam supply system | |
| CN207081055U (en) | Heat storage type air source heat pump hydro-thermal alliance control system | |
| CN202709254U (en) | Energy-saving district heat supply and storage system | |
| CN203172156U (en) | Hybrid energy-saving heat drying system applied to photogravure press and dry type compound machine | |
| CN202952646U (en) | Solar heating drying system of color printer | |
| CN201724473U (en) | Heat exchanger special for sea water source heat pump set | |
| CN205175194U (en) | Solid -state and liquid heat accumulation device that mixes | |
| CN108317755A (en) | A kind of solar energy high temperature hot water supply system | |
| CN210292038U (en) | Heat storage heating device and system thereof | |
| CN201212739Y (en) | Air-energy powerless fast exchanging water heater | |
| CN103411459A (en) | Multi-energy high-temperature heat-storage energy-saving device | |
| CN217560433U (en) | Concrete heat storage and industrial steam supply system | |
| CN203925901U (en) | Solar light-heat power-generation system | |
| CN104654260B (en) | Two-chamber electric heat accumulator and the complementary power station of wind-light-electricity accumulation of heat | |
| CN207701210U (en) | A kind of jet dynamic control tail gas waste heat utilizing device | |
| CN219433883U (en) | Electricity storage and heat storage system | |
| CN101581501A (en) | Combined multi-heat source rapid water heater | |
| CN207865684U (en) | A kind of bitubular immersion electrode water boiler of phase-change heat-exchange | |
| CN104661350B (en) | Three chamber electric heat accumulators and wind-light-electricity accumulation of heat complementation power station | |
| CN215062941U (en) | Solid electric heating storage and supply integrated device with pressure natural circulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |