CN113983443A - Gas boiler waste heat recovery utilizes system based on high temperature steam heat pump - Google Patents
Gas boiler waste heat recovery utilizes system based on high temperature steam heat pump Download PDFInfo
- Publication number
- CN113983443A CN113983443A CN202111399297.XA CN202111399297A CN113983443A CN 113983443 A CN113983443 A CN 113983443A CN 202111399297 A CN202111399297 A CN 202111399297A CN 113983443 A CN113983443 A CN 113983443A
- Authority
- CN
- China
- Prior art keywords
- water
- heat
- heat pump
- heat exchanger
- temperature steam
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1892—Systems therefor not provided for in F22B1/1807 - F22B1/1861
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The application discloses gas boiler waste heat recovery utilizes system based on high temperature steam heat pump includes: the system comprises a flue gas heat exchanger, a heat pump heat exchanger, a high-temperature heat pump, a heat exchanger, a high-temperature steam heat pump and a water purifying device which are connected in sequence through pipelines; a high-efficiency tube bundle heat exchanger is arranged in a smoke exhaust flue of the gas boiler, and circulating water is used for absorbing waste heat of smoke to obtain high-temperature hot water which is used as a heat source of a high-temperature heat pump; the high-temperature heat pump heats circulating water of the high-temperature steam heat pump through a heat exchanger, and a water outlet of the high-temperature steam heat pump is connected with a heat user pipeline; the user backwater and the water supplement are connected into the high-temperature steam heat pump through the water purifier. The application provides a steam heat pump and gas boiler's combined system, based on flue gas waste heat recovery technique and high temperature heat pump technique, utilize gas boiler's flue gas waste heat to add hot junction exchange heat source as the heat pump, effectively reduce gas boiler's the loss of discharging fume, promote the performance of heat pump, improved the utilization efficiency of electric energy.
Description
Technical Field
The invention relates to the technical field of flue gas waste heat recovery and heat pump energy conservation, in particular to a gas boiler waste heat recovery and utilization system based on a high-temperature steam heat pump.
Background
In the last decade, energy conservation work is further carried out due to energy shortage. Various novel, energy-saving advanced furnace types are gradually improved, and the heat dissipation loss of the furnace kiln is obviously reduced after novel high-quality heat insulation materials such as refractory fibers are adopted. The advanced combustion device is adopted to strengthen the combustion, the incomplete combustion amount is reduced, and the air-fuel ratio is also reasonable. However, techniques for reducing the heat loss of flue gas and recovering the residual heat of flue gas have not been developed rapidly. In order to further improve the heat efficiency of the kiln and achieve the purposes of energy conservation and consumption reduction, the recovery of the flue gas waste heat is also an important energy-saving way. Many modern science and technology enterprises need high-temperature steam to produce when producing, and common high-temperature steam generally produces through gas boiler, and its exhaust gas temperature generally is around 90 degrees, produces the loss of discharging fume.
At present, in order to meet the national requirements of improving energy utilization efficiency, reducing pollutant emission and the like, the recycling of waste heat of a gas boiler needs to be enhanced. However, the traditional heat pump can only generate hot water at a temperature of 70-90 ℃, and high-temperature steam is generally needed in the industrial process, so that the traditional heat pump is difficult to be used for flue gas waste heat recovery. The high-temperature steam heat pump can generally generate high-temperature and high-pressure steam, so that the high-temperature steam heat pump is suitable for recovering the waste heat of the flue gas and generating steam for user production.
Disclosure of Invention
Traditional high temperature steam heat pump is difficult to be used for flue gas waste heat recovery on the current market, this application provides a gas boiler waste heat recovery utilizes system based on high temperature steam heat pump to solve the problem that current high temperature steam heat pump is difficult to be used for flue gas waste heat recovery.
The application provides a gas boiler waste heat recovery utilizes system based on high temperature steam heat pump includes:
the system comprises a high-temperature heat pump, a first circulating water pump, a first heat exchanger, a high-temperature steam heat pump, a pure water processor, a water tank, a second circulating pump, a gas boiler, a second heat exchanger and a third circulating water pump, wherein the devices are connected in sequence through pipelines;
the gas boiler is configured to burn and heat circulating water to generate steam for a user to use;
the second heat exchanger is arranged in the smoke exhaust flue of the gas boiler;
the third circulating water pump is configured to drive waste heat absorption circulating water to flow between the second heat exchanger and the high-temperature heat pump;
the high-temperature steam heat pump is configured to absorb the waste heat of the flue gas generated by the gas-fired boiler and recover the heat in the circulating water to generate high-temperature water, and the high-temperature water is in the first heat exchanger to exchange the heat to the inlet water of the high-temperature steam heat pump;
the first circulating water pump is configured to drive waste heat absorption circulating water to flow between the high-temperature steam heat pump and the first heat exchanger;
the high temperature steam heat pump is configured to generate high temperature high pressure steam;
the pure water processor is configured to process user return water;
the water tank is configured to store user return water and send heated water to the first heat exchanger through the second circulation pump.
Further, the pure water processor is provided with a water replenishing valve, and the water replenishing valve is configured to be opened to replenish water when the water level of the water tank is lower.
Furthermore, the pure water processor is also provided with a water outlet, a water inlet and a filter membrane, wherein the water outlet and the water inlet are respectively arranged at two ends of the filter membrane, and the filter membrane is configured to process user backwater.
Furthermore, throttle valves are arranged on connecting pipelines of the first heat exchanger and the second heat exchanger.
Further, the first heat exchanger and the second heat exchanger are both high-efficiency tube bundle heat exchangers, and the first heat exchanger and the second heat exchanger are configured to enable circulating water to flow in the tube bundles and absorb waste heat of flue gas.
Further, the first heat exchanger and the second heat exchanger comprise a heat regenerator, an expansion cavity, a tube bundle and an annular transition cavity, the tube bundle comprises an inner tube bundle and an outer tube bundle, one end of the inner tube bundle is connected with the expansion cavity, one end of the outer tube bundle is connected with the heat regenerator, and the other end of the inner tube bundle and the other end of the outer tube bundle are communicated with the annular transition cavity.
Further, the water tank is a closed whole body, and a pressure adjusting device is arranged on the water tank and is configured to adjust the pressure in the water tank.
The application provides a gas boiler waste heat recovery utilizes system based on high temperature steam heat pump includes: the system comprises a gas boiler, a first heat exchanger, a high-temperature heat pump, a high-temperature steam heat pump, a water tank, a pure water processor, a first circulating pump, a second circulating pump and a third circulating pump. The waste heat in the flue gas generated by the combustion of the gas-fired boiler is absorbed by the flue gas waste heat recovery heat exchanger; the third circulating pump, the high-temperature heat pump and the flue gas waste heat recovery heat exchanger are connected through pipelines and are used for flue gas waste heat recovery and circulation; the high-temperature heat pump, the first circulating pump and the first heat exchanger are connected through pipelines to provide hot media water for the high-temperature steam heat pump; the first heat exchanger, the high-temperature steam heat pump, the third circulating pump, the water tank and the pure water processor are used for high-temperature steam circulation and are connected through pipelines.
According to the method, the circulating water is heated by using the waste heat of the flue gas as the heat source of the high-temperature heat pump, so that the exhaust gas temperature is reduced, and the energy utilization efficiency of the gas-fired boiler is improved; through the high-temperature heat pump, the inlet parameter of the high-temperature steam heat pump is improved, the efficiency and the heat supply quality of the high-temperature steam heat pump are improved, the high-temperature steam production cost of the high-temperature heat pump steam unit is effectively reduced, and the utilization efficiency of electric energy is improved.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic structural diagram of a gas boiler waste heat recovery system based on a high-temperature steam heat pump according to an embodiment of the present application;
the system comprises a high-temperature heat pump 1, a first circulating water pump 2, a first heat exchanger 3, a water supplementing valve 4, a high-temperature steam heat pump 5, a pure water processor 6, a water tank 7, a second circulating water pump 8, a gas boiler 9, a second heat exchanger 10 and a third circulating water pump 11.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With the development of our society and the emergence of new energy, the utilization mode of the energy is no longer single, and natural gas as an environment-friendly new energy can be widely developed and used. The method is based on a low-level flue gas waste heat recovery strategy, and is used for analyzing some technical problems in the flue gas recycling process by taking two technologies of a heat exchanger and an electric pump as assistance in flue gas waste heat recovery, and finding a solution.
China always supplies energy mainly comprising coal, accounts for more than three quarters, and brings great pollution to the environment where people live while supplying heat. However, after the western gas field is developed, natural gas is widely used as a green and environment-friendly new clean energy to replace coal. The natural gas can produce a lot of flue gas waste heat when using, and the waste heat of recycle not only can reduce the waste of energy, can also reduce economic loss.
The main component of natural gas is methane, and a large amount of H elements exist in the methane, so that a large amount of water vapor is discharged from the exhaust smoke of a boiler using the natural gas, and the exhaust smoke not only takes away a part of sensible heat, but also takes away more latent heat of the water vapor. The natural gas has less nitride, carbide and sulfide in the smoke, and the discharged gas after combustion has weak corrosivity, so that the deep recovery of water vapor is easy to realize. If partial or complete condensation is allowed, the efficiency of the boiler will also increase as the utilization of natural gas increases.
The application provides a gas boiler waste heat recovery utilizes system based on high temperature steam heat pump includes:
the system comprises a high-temperature heat pump 1, a first circulating water pump 2, a first heat exchanger 3, a high-temperature steam heat pump 5, a pure water processor 6, a water tank 7, a second circulating pump 8, a gas boiler 9, a second heat exchanger 10 and a third circulating water pump 11, wherein the devices are connected in sequence through pipelines;
the gas boiler 9 is configured to burn the heated circulating water to generate steam for use by a user;
the second heat exchanger 10 is arranged in a smoke exhaust flue of the gas boiler 9;
the third circulating water pump 11 is configured to drive the waste heat absorption circulating water to flow between the second heat exchanger 10 and the high-temperature heat pump 1;
the high-temperature steam heat pump 1 is configured to absorb the flue gas waste heat generated by the gas boiler 9 and recover the heat in the circulating water to generate high-temperature water, and the high-temperature water exchanges the heat to the inlet water of the high-temperature steam heat pump 5 in the first heat exchanger 3;
the high-temperature heat pump collects heat in medium and low-temperature waste water and waste gas discharged and wasted by industrial enterprises through the high-temperature heat energy heat pump, converts the heat into water or high-temperature steam with the temperature of less than or equal to 150 ℃, is used for industrial processes or heating, can directly replace a traditional coal-fired boiler, and is the best choice for realizing industrial energy conservation, consumption reduction and efficiency improvement.
The first circulating water pump 2 is configured to drive waste heat absorption circulating water to flow between the high-temperature steam heat pump 1 and the first heat exchanger 3;
the high temperature steam heat pump 5 is configured to generate high temperature and high pressure steam;
the pure water processor 6 is configured to process user return water;
the water tank 7 is configured to hold user return water and to send heated water to the first heat exchanger 3 through the second circulation pump 8.
Further, the pure water processor 6 is provided with a water replenishing valve 4, and the water replenishing valve 4 is configured to open the water replenishing valve 4 to replenish water when the water level of the water tank 7 is lower.
Further, the pure water processor 6 is also provided with a water outlet, a water inlet and a filter membrane, wherein the water outlet and the water inlet are respectively arranged at two ends of the filter membrane, and the filter membrane is configured to process user backwater.
Furthermore, the connecting pipes of the first heat exchanger 3 and the second heat exchanger 10 are both provided with throttle valves, and the heat exchangers are devices for transferring partial heat of hot fluid to cold fluid, and are also called heat exchangers. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied. For example, the polytetrafluoroethylene heat exchanger for low temperature of a power plant is a novel device for recovering waste heat of the power plant for reducing the temperature of exhaust smoke. The fluoroplastic heat exchanger can prevent acid corrosion and reduce the temperature of the flue gas to be within 100 ℃. The expansion-limiting pressure-applying heating welding process for the polytetrafluoroethylene tube plate is developed successfully by Zhengzhou industrial university, and the key technology for connecting the fluoroplastic tube and the tube plate is solved. Subsequently, various types of heat exchangers made in China are put into practical production and application in sequence, and good effects are achieved.
Further, the first heat exchanger 3 and the second heat exchanger 10 are both high-efficiency tube bundle heat exchangers, the first heat exchanger 3 and the second heat exchanger 10 are configured to make circulating water flow in the tube bundle to absorb flue gas waste heat, a fluid channel formed inside a heat exchange tube of the tube bundle heat exchanger is called a tube side, and a fluid channel formed outside the heat exchange tube is called a shell side. A working medium enters a heat transfer pipe from an inlet connecting pipe at the end sealing end, and the flow can realize a one-tube pass, a two-tube pass and a four-tube pass structure according to the process requirements; the other working medium enters the shell from an inlet connecting pipe at one end of the shell and is uniformly distributed outside the heat transfer pipe, and the flow state of the working medium can be provided with baffle plates of different types and numbers in the pipe bundle according to the process requirements. 2 working media with different temperatures enter the heat exchanger, the working media with relatively high temperatures transmit heat to the working media with relatively low temperatures through the heat exchange pipe wall, the working media with relatively high temperatures are cooled, the working media with relatively low temperatures are heated, and then the aim of the two-fluid heat exchange process is fulfilled.
Further, first heat exchanger 3 and second heat exchanger 10 include regenerator, expansion chamber, tube bank and annular transition chamber, the tube bank comprises many pipes, the tube bank includes inboard tube bank and outside tube bank, the one end of inboard tube bank links to each other with the expansion chamber, the one end of outside tube bank links to each other with the regenerator, the other end of inboard tube bank and the other end of outside tube bank all with annular transition chamber intercommunication. The annular transition cavity is an annular hollow shell, the inner tube bundle is communicated with the outer tube bundle through the annular transition cavity, so that the inner tube bundle and the outer tube bundle can be uniformly arranged on the lower surface of the shell of the annular transition cavity, the lower surface of the annular transition cavity can be fully utilized, the inner tube bundle and the outer tube bundle can be arranged as much as possible, and the problems of mutual crowding and interference among the tubes can be avoided.
Further, the first heat exchanger 3 and the second heat exchanger 10 may also be direct contact heat exchangers, wherein the direct contact heat exchangers have the following advantages: the heat can be effectively transferred from one fluid to another fluid, i.e. the heat transfer efficiency is high, and the unit heat transfer surface can transfer more heat; the structure of the heat exchanger can adapt to the specified process operation conditions, the operation is safe and reliable, the sealing performance is good, the cleaning and the maintenance are convenient, and the fluid resistance is small; the price is cheap, the maintenance is easy, and the service life is long.
Further, the water tank 7 is a closed whole body, and a pressure adjusting device is arranged on the water tank and is configured to adjust the pressure in the water tank 7.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111399297.XA CN113983443A (en) | 2021-11-19 | 2021-11-19 | Gas boiler waste heat recovery utilizes system based on high temperature steam heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111399297.XA CN113983443A (en) | 2021-11-19 | 2021-11-19 | Gas boiler waste heat recovery utilizes system based on high temperature steam heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113983443A true CN113983443A (en) | 2022-01-28 |
Family
ID=79750148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111399297.XA Pending CN113983443A (en) | 2021-11-19 | 2021-11-19 | Gas boiler waste heat recovery utilizes system based on high temperature steam heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113983443A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117537505A (en) * | 2022-10-13 | 2024-02-09 | 付朝乾 | Cooling water waste heat utilization heat pump unit for industrial enterprises |
| CN117585832A (en) * | 2023-11-17 | 2024-02-23 | 中国电力建设工程咨询环境工程有限公司 | A system for recovering circulating water energy for sewage treatment |
| CN119436904A (en) * | 2024-11-04 | 2025-02-14 | 重庆电子科技职业大学 | A waste heat recovery application system and control method suitable for steam exhaust |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204082237U (en) * | 2014-08-29 | 2015-01-07 | 中国华能集团清洁能源技术研究院有限公司 | The IGCC thermal power cogeneration central heating system of recovery waste heat |
| CN104964580A (en) * | 2015-06-19 | 2015-10-07 | 中国科学院理化技术研究所 | Tube bundle heat exchanger |
| CN110186219A (en) * | 2019-05-17 | 2019-08-30 | 上海交通大学 | The device of working medium heat pump system of low-pressure steam, high steam and high-temperature-hot-water trilogy supply |
-
2021
- 2021-11-19 CN CN202111399297.XA patent/CN113983443A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204082237U (en) * | 2014-08-29 | 2015-01-07 | 中国华能集团清洁能源技术研究院有限公司 | The IGCC thermal power cogeneration central heating system of recovery waste heat |
| CN104964580A (en) * | 2015-06-19 | 2015-10-07 | 中国科学院理化技术研究所 | Tube bundle heat exchanger |
| CN110186219A (en) * | 2019-05-17 | 2019-08-30 | 上海交通大学 | The device of working medium heat pump system of low-pressure steam, high steam and high-temperature-hot-water trilogy supply |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117537505A (en) * | 2022-10-13 | 2024-02-09 | 付朝乾 | Cooling water waste heat utilization heat pump unit for industrial enterprises |
| CN117585832A (en) * | 2023-11-17 | 2024-02-23 | 中国电力建设工程咨询环境工程有限公司 | A system for recovering circulating water energy for sewage treatment |
| CN119436904A (en) * | 2024-11-04 | 2025-02-14 | 重庆电子科技职业大学 | A waste heat recovery application system and control method suitable for steam exhaust |
| CN119436904B (en) * | 2024-11-04 | 2025-11-25 | 重庆电子科技职业大学 | A waste heat recovery application system and control method suitable for steam exhaust. |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101726110B (en) | Heatpump type gas-fired boiler waste heat recovery unit | |
| CN202048562U (en) | Improved water supply system of electric-furnace exhaust heat boiler | |
| CN113958413B (en) | A gas-steam combined cycle intake fuel coupling heating system and method | |
| CN115307473A (en) | Heat storage system and method utilizing smoke heat of coal-fired boiler | |
| CN102589308A (en) | Waste heat recycling system of industrial furnaces | |
| CN212431010U (en) | A machine-furnace coupling heating waste heat utilization system | |
| CN215723144U (en) | Boiler flue gas waste heat utilization device | |
| CN202501626U (en) | Heat transfer oil furnace internal circulation waste heat recovery device with thermostat | |
| CN113464971A (en) | Air preheating system of garbage incinerator | |
| CN107763680A (en) | A kind of integrated large stove of used heat conversion | |
| CN219993778U (en) | Waste heat recovery system for gas generator set | |
| CN202229154U (en) | System for using organic heat carrier boiler smoke waste heat to generate low voltage steam | |
| CN110986023B (en) | A coupled energy-saving system | |
| CN213630645U (en) | System for preparing domestic hot water by recycling low-temperature flue gas waste heat | |
| CN102322624A (en) | System utilizing organic heat carrier furnace flue gas waste heat to produce low-pressure steam | |
| CN210688159U (en) | A local distributed energy system | |
| CN203271921U (en) | Combined heat and power closed heat supply system of gas turbine generating set | |
| CN115876016A (en) | An intelligent phase change heat waste heat energy saving system | |
| CN103526003B (en) | Heat-controllable tubular gas heat treatment furnace | |
| CN207062213U (en) | A kind of gasification of biomass coupling coal fired power generation gasification gas utilizes system | |
| CN2578734Y (en) | Coal furnace with thermal conductive oil as heat carrier | |
| CN208347882U (en) | A kind of SOFC fuel cell and internal combustion engine combustion gas distributed couplings system | |
| CN103244272A (en) | Closed heating system for cogeneration of gas turbine generator set | |
| CN217900569U (en) | Heat exchange system with steam standby heat source | |
| CN207701210U (en) | A kind of jet dynamic control tail gas waste heat utilizing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220128 |