CN218721778U - Heat supply steam extraction system - Google Patents
Heat supply steam extraction system Download PDFInfo
- Publication number
- CN218721778U CN218721778U CN202222588815.9U CN202222588815U CN218721778U CN 218721778 U CN218721778 U CN 218721778U CN 202222588815 U CN202222588815 U CN 202222588815U CN 218721778 U CN218721778 U CN 218721778U
- Authority
- CN
- China
- Prior art keywords
- steam
- pipe
- valve
- heat supply
- temperature
- 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
Landscapes
- Pipeline Systems (AREA)
Abstract
The utility model discloses a heat supply steam extraction system, which comprises a steam header, a cold re-steam pipe and a heat supply pipe, wherein the cold re-steam pipe comprises a cold re-pipeline, a first steam extraction valve, a first regulating valve and a first safety valve; the input end of the heat supply pipe is connected with the steam header, and the output end of the heat supply pipe is a heat supply user. During the small flow heat supply, low temperature steam boiler carries steam to cold pipeline again, adjusts first governing valve, reduces the pressure of cold pipeline steam again, and steam after the step-down is from cold pipeline input steam header again, and rethread heating pipe carries to heat supply user department, and this scheme is avoided opening the drainage of big heat supply header and heat supply pipeline during the small flow heat supply, causes working medium and extravagant phenomenon of heat to take place, has improved heating economic nature effectively.
Description
Technical Field
The utility model relates to a thermoelectric unit heating system technical field especially relates to a heat supply steam extraction system.
Background
In the existing heat supply steam extraction system technology, in order to meet the requirements of heat supply users and prevent the overheating of the reheating pipe wall of a boiler, high-temperature reheating steam extraction is generally adopted to supply steam to the outside after temperature and pressure reduction. In small-flow heat supply, the reheating pipe wall of the boiler is easy to overtemperature, the temperature regulation quality of the temperature reduction water of high-temperature reheating steam is poor, the atomization of the temperature reduction water is insufficient, and the water carrying of the heating steam is serious.
Chinese utility model CN212378056U proposes a steam turbine low pressure cylinder micro-output expansion steam extraction heating system, in which a steam supply pipeline of a regenerative system comprises a main path and a plurality of branch paths formed by branching from the main path, an inlet of the main path is connected to a downstream of a second butterfly valve, and the branch paths are communicated to a low pressure heater in a one-to-one correspondence manner; all be provided with the second pressure and temperature reduction valve that reduces temperature on the reposition of redundant personnel branch road, can avoid steam extravagant, also guarantee the stability of condensate water volume, and then guarantee condensate pump can not appear the cavitation because of the little flow operation to the security of system operation has been improved, but this scheme need set up many reposition of redundant personnel branches, has increased the cost.
Therefore, there is a need to provide a new heating steam extraction system to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a heating steam extraction system, heating system operation safety and heating economic nature problem when aiming at solving the little flow heat supply.
In order to achieve the above purpose, the utility model provides a heat supply steam extraction system, heat supply steam extraction system include steam header, cold reheat pipe and heating supply pipe, cold reheat pipe includes cold reheat pipe way, first extraction valve, first governing valve and first relief valve, the input of cold reheat pipe way is connected with low temperature steam boiler, the output of cold reheat pipe way with steam header connection, first extraction valve, first governing valve and the first relief valve set gradually on cold reheat pipe way along the steam conveying direction; the input end of the heat supply pipe is connected with the steam header, and the output end of the heat supply pipe is a heat supply user.
Optionally, the steam temperature input to the cold reheat pipe is 280 ° to 320 °.
Optionally, the heat supply steam extraction system further comprises a hot re-steam pipe, the hot re-steam pipe comprises a hot re-pipeline, a second steam extraction valve, a second regulating valve and a second safety valve, an input end of the hot re-pipeline is connected with the high-temperature furnace, an output end of the hot re-pipeline is connected with the steam header, and the second steam extraction valve, the second regulating valve and the second safety valve are sequentially arranged on the hot re-pipeline along a steam conveying direction.
Optionally, the steam temperature input to the hot reheat pipe is 520 ° to 545 °.
Optionally, the number of hot reheat pipes is plural.
Optionally, the heat supply steam extraction system further includes a temperature reduction water pipe, the temperature reduction water pipe includes a temperature reduction pipe, a water suction valve, a third regulating valve and a third safety valve, the temperature reduction pipe and the heat re-pipe are arranged in a one-to-one correspondence, an input end of the temperature reduction pipe is connected with an external water tank, an output end of the temperature reduction pipe is communicated with the heat re-pipe, a communication position of the temperature reduction water pipe and the heat re-steam pipe is located between the first regulating valve and the first safety valve, and the water suction valve, the third regulating valve and the third safety valve are sequentially arranged on the temperature reduction pipe along a conveying direction of the temperature reduction water.
Optionally, the temperature of the desuperheated water in the desuperheating pipeline is 170 ° to 230 °.
Optionally, the number of cold reheat pipes is plural.
Optionally, the water extraction valve, the first extraction valve and the second extraction valve are all electrically operated valves.
Optionally, an adjusting valve is arranged on the heat supply pipe, and the adjusting valve is used for adjusting the steam flow in the heat supply pipe.
In the technical scheme of the utility model, the heat supply steam extraction system comprises a steam header, a cold re-steam pipe and a heat supply pipe, wherein the cold re-steam pipe comprises a cold re-pipeline, a first steam extraction valve, a first regulating valve and a first safety valve; the input end of the heat supply pipe is connected with the steam header, and the output end of the heat supply pipe is a heat supply user. During the small flow heat supply, all valves of heat supply extraction system are in the closed state, open first extraction valve and first relief valve, and low temperature steam boiler carries steam to cold pipeline again, adjusts first governing valve, reduces the pressure of cold pipeline steam again, and steam after the step-down is from cold pipeline input steam header again in, and rethread heat supply pipe carries to heat supply user department, when cold steam pipe breaks down again, need close first relief valve in order to maintain the operation. According to the scheme, heat can be supplied to the outside only by reducing pressure and without reducing temperature, the phenomenon that working media and heat are wasted due to the fact that a large heat supply header and a heat supply pipeline are opened to drain water during small-flow heat supply is avoided, and the heat supply economical efficiency is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of a heating steam extraction system according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name(s) | Reference numerals | Name (R) |
| 100 | Heat supply |
41 | |
| 10 | |
42 | Second |
| 20 | |
43 | Second regulating |
| 21 | |
44 | |
| 22 | First |
50 | Temperature-reducing |
| 23 | First regulating |
51 | |
| 24 | |
52 | |
| 30 | |
53 | Third regulating |
| 31 | Heat |
54 | |
| 40 | Thermal reheat pipe |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions of the embodiments of the present invention can be combined with each other, but it is necessary to use a person skilled in the art to realize the basis, and when the technical solutions are combined and contradictory to each other or cannot be realized, the combination of the technical solutions should not exist, and is not within the protection scope of the present invention.
The utility model provides a heating steam extraction system aims at solving the problem of heating system operation safety and heating economy nature when small discharge heat supply.
As shown in fig. 1, the heat supply steam extraction system 100 includes a steam header 10, a cold re-steam pipe 20 and a heat supply pipe 30, the cold re-steam pipe 20 includes a cold re-pipe 21, a first steam extraction valve 22, a first regulating valve 23 and a first safety valve 24, an input end of the cold re-pipe 21 is connected with the low-temperature steam boiler, an output end of the cold re-pipe 21 is connected with the steam header 10, and the first steam extraction valve 22, the first regulating valve 23 and the first safety valve 24 are sequentially disposed on the cold re-pipe 21 along a steam conveying direction; the input end of the heating pipe 30 is connected with the steam header 10, and the output end of the heating pipe 30 is a heating user. Specifically, the input end of the cold recycling pipeline 21 is connected to the low-temperature steam boiler, steam conveyed by the low-temperature steam boiler enters the cold recycling pipeline 21 from the input end, the steam pressure is reduced through the first regulating valve 23, and then the steam is conveyed into the steam header 10 from the output end of the cold recycling pipeline 21 and conveyed to a heat supply user through the heat supply pipe 30. When the small flow heat supply is carried out, all valves are in a closed state, the first steam extraction valve 22 and the first safety valve 24 are opened, the low-temperature steam furnace conveys high-pressure steam to the cold re-pipeline 21, the first regulating valve 23 is regulated to reduce the pressure of the steam in the cold re-pipeline 21, the steam after pressure reduction is input into the steam header 10 from the cold re-pipeline 21 and conveyed to a heat supply user through the heat supply pipe 30, and when the cold re-steam pipe 20 breaks down, the first safety valve 24 needs to be closed to carry out maintenance operation. The utility model discloses open the drainage of big heat supply header and heating pipe 30 ways when having avoided the small discharge heat supply, and cause working medium and extravagant phenomenon of heat to take place, the steam that low temperature steam boiler carried will be about 220 ℃ lower than high temperature reheat steam temperature, has reduced the first parameter, has saved the process of subtracting the temperature, has improved heat supply steam extraction system 100's work efficiency and heating economic nature effectively.
Wherein the steam temperature input into the cold reheat pipe 20 is 280 to 320. The heating temperature of user's demand is about 300, and the steam temperature of input cold reheat pipe 20 is 280 to 320, just satisfies user's heating demand, and the steam of input cold reheat pipe 21 need not to carry out the desuperheating operation from this, only needs to reduce steam pressure through adjusting first governing valve 23, alright through heating pipe 30 external heating, has reduced the heat waste, has improved heating efficiency.
In an embodiment, the heating steam extraction system 100 further includes a hot steam pipe 40, the hot steam pipe 40 includes a hot re-pipe 41, a second steam extraction valve 42, a second regulating valve 43, and a second safety valve 44, an input end of the hot re-pipe 41 is connected to the high temperature furnace, an output end of the hot re-pipe 41 is connected to the steam header 10, and the second steam extraction valve 42, the second regulating valve 43, and the second safety valve 44 are sequentially disposed on the hot re-pipe 41 along a steam conveying direction. During large-traffic heat supply, heating system adopts heat vapor pipe 40 heat supply again, and all valves of heat supply extraction system 100 are in the closed condition this moment, open second extraction valve 42 and second relief valve 44, and the high temperature furnace carries high temperature high pressure steam to heat pipeline 41 again, adjusts second governing valve 43 simultaneously, and high temperature high pressure steam passes through the pressure reduction effect of second governing valve 43, carries to steam header 10 along heat pipeline 41 again, then carries to user's department through heating pipe 30. Further, when the hot re-steam pipe 40 malfunctions, the second relief valve 44 needs to be closed for maintenance work. The hot re-steam pipe 40 can satisfy a large flow of heat supply, and the cold re-steam pipe 20 can satisfy a small flow of heat supply, thereby avoiding heat loss, improving heat supply economy, and satisfying various heat supply requirements.
Wherein the steam temperature input to the hot reheat pipe 40 is 520 ° to 545 °. In order to meet the requirement of a heat supply user and prevent the reheating pipe wall of the boiler from overtemperature, high-temperature reheating steam extraction is adopted to supply steam to the outside after temperature and pressure reduction, the steam temperature conveyed to the hot reheating pipeline 41 by the high-temperature furnace is 520-545 degrees, and after the steam passes through the pressure reduction effect of the second regulating valve 43, the steam and the temperature reduction water converged into the hot reheating pipeline 41 are subjected to temperature reduction, so that the temperature of the steam is reduced to the temperature required by the user and then is input into the steam header 10 to supply heat to the outside through the heat supply pipe 30.
In a preferred embodiment, the number of hot reheat pipes 40 is plural. The input of a plurality of hot steam pipes 40 is connected with the output of high temperature furnace, and the output of a plurality of hot steam pipes 40 all connects on steam header 10, generally only need to adopt a hot steam pipe 40 to supply heat among the heat supply process, when hot steam pipe 40 in use breaks down, in order not to influence normal heat supply operation, can in time replace into another hot steam pipe 40 and supply heat, has avoided appearing the phenomenon that the heat supply is interrupted. When the number of the hot re-steam pipes 40 is two, the input ends of the two hot re-steam pipes 40 are respectively connected to the same high-temperature furnace, and when one of the hot re-steam pipes 40 is used, the valve on the other hot re-steam pipe 40 is in a closed state; the two thermal reheat pipes 40 can also be connected to different high temperature furnaces, in which case the two thermal reheat pipes 40 are independent of each other.
In addition, the heat supply steam extraction system 100 further comprises a temperature reduction water pipe 50, the temperature reduction water pipe 50 comprises a temperature reduction pipeline 51, a water pumping valve 52, a third regulating valve 53 and a third safety valve 54, the temperature reduction pipeline 50 and the hot re-pipeline 41 are arranged in a one-to-one correspondence manner, the input end of the temperature reduction pipeline 51 is connected with an external water tank, the output end of the temperature reduction pipeline 51 is communicated with the hot re-pipeline 41, the communication position of the temperature reduction water pipe 50 and the hot re-steam pipe 40 is located between the first regulating valve 23 and the first safety valve 24, and the water pumping valve 52, the third regulating valve 53 and the third safety valve 54 are sequentially arranged on the temperature reduction pipeline 51 along the conveying direction of the temperature reduction water. A hot reheat pipe 40 corresponds to a desuperheating water pipe 50, the output end of the desuperheating pipe 51 is communicated with the hot reheat pipe 41, the desuperheating pipe 51 is communicated with the hot reheat pipe 41 and is arranged between the first regulating valve 23 and the first safety valve 24, when large-flow heat supply is carried out, all valves of the heat supply steam extraction system 100 are in a closed state at the moment, the second steam extraction valve 42 and the second safety valve 44 are opened, high-temperature high-pressure steam is input into the hot reheat pipe 41, the water extraction valve 52, the third regulating valve 53 and the third safety valve 54 are opened, the desuperheating water is converged into the hot reheat pipe 41 along the desuperheating pipe 51, the second regulating valve 43 is regulated, the high-temperature high-pressure steam is fully contacted with the desuperheating water after the pressure reduction effect of the second regulating valve 43 to play a cooling effect, the high-temperature steam is conveyed into the steam header 10 after the desuperheating operation of the desuperheating water, and is conveyed to a heat supply user through the heat supply pipe 30. When the temperature-reduced water pipe 50 is out of order, the third safety valve 54 can be closed to timely repair the temperature-reduced water pipe 50. The large-flow steam can be fully contacted with the temperature-reducing water, so that the conditions of insufficient atomization of the temperature-reducing water and serious water carrying of the heating steam are avoided.
Wherein the temperature of the desuperheating water in the desuperheating pipe 51 is 170 ° to 230 °. The temperature of the high-temperature high-pressure steam in the heat re-pipeline 41 is 520-545 degrees, after the high-temperature high-pressure steam is fully contacted with the desuperheating water of 170-230 degrees, the temperature of the steam can be reduced to about 300 degrees, the heat supply steam of about 300 degrees just can meet the requirements of heat supply users, the temperature of the desuperheating water can be adjusted according to the heat supply requirements of different users, so that the heat supply steam of different temperatures can be obtained, and various heat supply requirements can be met.
In a preferred embodiment, the number of cold reheat pipes 20 is plural. The input of a plurality of cold steam pipes 20 is connected with the output of low temperature stove, and the output of a plurality of cold steam pipes 20 all connects on steam header 10, generally only need to adopt a cold steam pipe 20 to carry out the cold supply among the heat supply process, when cold steam pipe 20 in use breaks down, in order not to influence normal heat supply operation, can in time replace and change into another cold steam pipe 20 and carry out the heat supply, has avoided appearing the phenomenon that the heat supply was interrupted. When the number of the cold re-steam pipes 20 is two, the two cold re-steam pipes 20 may be connected to the same low temperature furnace or may be connected to different low temperature furnaces.
In the present invention, the pumping valve 52, the first steam extraction valve 22 and the second steam extraction valve 42 are all electrically operated valves. All valves in the heating steam extraction system 100 are electric valves, the electric valves are high-end products in the automatic control valves, the electric valves not only have an opening and closing function, the adjusting type electric valves can also achieve a valve position adjusting function, the first adjusting valve 23, the second adjusting valve 43 and the third adjusting valve are adjusting type electric valves, and the water pressure and the air pressure in the pipeline can be adjusted by rotating the valve handles, so that different requirements are met. In addition, the service life of motorised valve is long, still has high temperature resistant, resistant chemical corrosion's characteristics.
Further, a heat supply regulating valve 31 is arranged on the heat supply pipe 30, and the heat supply regulating valve 31 is used for regulating the steam flow in the heat supply pipe 30. During large-flow heat supply operation, the second steam extraction valve 42, the second regulating valve 43, the second safety valve 44 and the heat supply regulating valve 31 are all in an open state, and other valves are all in a closed state; in the case of a small flow heating operation, the first steam extraction valve 22, the first regulating valve 23, the first safety valve 24 and the heat supply regulating valve 31 are all in an open state, and the other valves are all in a closed state, so that the worker can adjust the steam flow in the heat supply pipe 30 by adjusting the heat supply regulating valve 31.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. A heating steam extraction system, comprising:
a steam header;
the cold re-steam pipe comprises a cold re-pipeline, a first steam extraction valve, a first regulating valve and a first safety valve, the input end of the cold re-pipeline is connected with the low-temperature steam furnace, the output end of the cold re-pipeline is connected with the steam header, and the first steam extraction valve, the first regulating valve and the first safety valve are sequentially arranged on the cold re-pipeline along the steam conveying direction;
the input end of the heat supply pipe is connected with the steam header, and the output end of the heat supply pipe is a heat supply user.
2. A heating steam extraction system as claimed in claim 1, wherein the steam temperature input to the cold re-steam pipe is in the range of 280 ° to 320 °.
3. A heating steam extraction system as claimed in claim 2, further comprising a hot re-steam pipe, the hot re-steam pipe comprising a hot re-pipe, a second steam extraction valve, a second regulating valve and a second safety valve, an input end of the hot re-pipe being connected to the high temperature furnace, an output end of the hot re-pipe being connected to the steam header, the second steam extraction valve, the second regulating valve and the second safety valve being disposed in this order on the hot re-pipe in the steam delivery direction.
4. A heating steam extraction system as claimed in claim 3, wherein the steam temperature input to the hot reheat pipe is 520 ° to 545 °.
5. A heating steam extraction system as claimed in claim 4, wherein the number of the thermal reheat pipes is plural.
6. A heating steam extraction system as claimed in claim 5, further comprising a temperature-reducing water pipe, wherein the temperature-reducing water pipe comprises a temperature-reducing pipe, a water pumping valve, a third regulating valve and a third safety valve, the temperature-reducing pipe and the thermal re-pipe are arranged in one-to-one correspondence, an input end of the temperature-reducing pipe is connected with an external water tank, an output end of the temperature-reducing pipe is communicated with the thermal re-pipe, a communication position of the temperature-reducing water pipe and the thermal re-pipe is located between the first regulating valve and the first safety valve, and the water pumping valve, the third regulating valve and the third safety valve are sequentially arranged on the temperature-reducing pipe along a conveying direction of the temperature-reducing water.
7. A heating steam extraction system as claimed in claim 6, wherein the temperature of the desuperheated water in the desuperheated pipeline is 170 ° to 230 °.
8. A heating steam extraction system according to any one of claims 1 to 7, wherein the number of cold re-steam pipes is plural.
9. A heating steam extraction system according to any one of claims 6 to 7, wherein the water extraction valve, the first steam extraction valve and the second steam extraction valve are all electrically operated valves.
10. A heating steam extraction system according to any one of claims 1 to 7, wherein the heating pipeline is provided with an adjustment valve for adjusting the steam flow in the heating pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222588815.9U CN218721778U (en) | 2022-09-28 | 2022-09-28 | Heat supply steam extraction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222588815.9U CN218721778U (en) | 2022-09-28 | 2022-09-28 | Heat supply steam extraction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218721778U true CN218721778U (en) | 2023-03-24 |
Family
ID=85637601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222588815.9U Active CN218721778U (en) | 2022-09-28 | 2022-09-28 | Heat supply steam extraction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218721778U (en) |
-
2022
- 2022-09-28 CN CN202222588815.9U patent/CN218721778U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020181675A1 (en) | Flexible coal-fired power generation system, and operation method therefor | |
| CN108644860A (en) | A kind of larger thermal power air-cooling units exhaust steam residual heat recycling heating system | |
| CN104763485B (en) | A kind of concurrent heating type ultrahigh pressure/subcritical back pressure thermal power plant unit thermodynamic system | |
| CN106051805B (en) | A kind of residual neat recovering system and method using smoke discharging residual heat as steam air heater heat source | |
| CN108035777A (en) | A kind of fired power generating unit mesolow cylinder combines zero output heating system and method | |
| CN109736907B (en) | High back pressure heating system of steam turbine and auxiliary system thereof | |
| CN103244944A (en) | Air preheating system and method performing steam extraction by utilizing steam turbine | |
| CN106499455A (en) | Combined-cycle power plant's soda pop backheat and fuel heating integrated put forward effect system | |
| CN104976671A (en) | Wide-load heat supply energy-saving system of back pressure type small turbine drive water supply pump | |
| CN111520204A (en) | System and method for improving steam supply capacity and unit efficiency of reheat steam turbine | |
| CN202470536U (en) | Double-high flue gas hot-water after-burning type lithium bromide absorption type cold and hot water unit | |
| CN108825316A (en) | A kind of steam extraction heat supply unit quick response load system | |
| CN218721778U (en) | Heat supply steam extraction system | |
| CN105370332A (en) | Stage-adjustable ten-stage regeneration system of 1000 MW unit | |
| CN102494329B (en) | Device for utilizing flue gas waste heat of boiler comprehensively | |
| CN110553301B (en) | Heat supply method and system for air cooling unit | |
| CN207194971U (en) | A kind of backheat heating heating system of cascaded utilization of energy | |
| CN105042666A (en) | Wide-load heat supply energy saving system of back pressure type small turbine driving induced draft fan | |
| CN214275887U (en) | Heating pipe section hot standby heating pipe system for steam extraction and heat supply | |
| CN111735037B (en) | High-pressure heater accident drainage system capable of recycling accident drainage heat | |
| CN204757075U (en) | Wide load of little steam turbine of backpressure formula drive draught fan supplies heat energy -saving system | |
| CN212671882U (en) | Condensate system of exhaust steam recovery heat supply supercritical unit | |
| CN209431389U (en) | A kind of waste incineration and generating electricity heat energy recycling system of air compressor | |
| CN107218591A (en) | A kind of externally arranged steam cooler system for heating heat primary air | |
| CN214038473U (en) | Boiler flue gas waste heat utilization system for back pressure steam turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |