CN217208308U - Back pressure type and condensing steam turbine emptying steam pipeline structure - Google Patents
Back pressure type and condensing steam turbine emptying steam pipeline structure Download PDFInfo
- Publication number
- CN217208308U CN217208308U CN202123322159.XU CN202123322159U CN217208308U CN 217208308 U CN217208308 U CN 217208308U CN 202123322159 U CN202123322159 U CN 202123322159U CN 217208308 U CN217208308 U CN 217208308U
- Authority
- CN
- China
- Prior art keywords
- steam
- power generation
- turbine
- pressure
- emptying
- 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
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to the field of steam recovery, and provides a back pressure type and condensing steam turbine vent steam pipeline structure, which comprises a power generation vent steam pipeline, a steam pipe and a steam pipe, wherein the power generation vent steam pipeline is used for conveying high-temperature and high-pressure steam exhausted by a condensing steam turbine, the power generation vent steam pipeline is a bent pipe with the size of DN300mm and the angle of 90 degrees, and the corner of the bent pipe in the power generation vent steam pipeline is a round angle; high-temperature steam in a vertical pipe I in the bent pipe is used for heat supply or is used for a medium-pressure steam turbine and a low-pressure steam turbine, and a silencer is mounted on the vertical pipe I; has the beneficial effects that: through reforming transform to current power generation unloading steam conduit, this power generation unloading steam conduit can be used for the heat supply alone or with the air inlet intercommunication of well, low pressure steam turbine, consequently does not have the problem that produces the offset power between two unloading steam conduits, has not only reduced noise pollution, and the noise has reduced to 65 decibels from 90 decibels at present, and makes steam keep steady state.
Description
Technical Field
The utility model belongs to the steam recovery field especially relates to a back pressure type and condensing steam turbine steam vent pipe structure.
Background
Along with the development of science and technology, the recycling of high-temperature waste heat is widely popularized, the sulfuric acid industry can use and generate a large amount of high-temperature steam in the sulfuric acid preparation process, and resources and cost are saved, so that the recycling is carried out, and the method of the company is to arrange a condensing turbine in the outlet direction of a steam pipeline to extract heat in the steam for power generation and continuous heat supply; at present, 2 groups of steam turbines are adopted by a company, one group is a back pressure turbine, the other group is a condensing turbine matched with the back pressure turbine, most of steam enters the back pressure turbine, the back pressure turbine is a main turbine, and the rest steam enters the condensing turbine to meet the requirement of an enterprise on electric load; further, the steam exhaust of the steam turbine is used for heat supply or supplying to the existing medium and low pressure steam turbines through a backpressure emptying steam pipeline and a power generation emptying steam pipeline respectively, and the connecting structures of the existing backpressure emptying steam pipeline and the power generation emptying steam pipeline are as follows: backpressure unloading steam conduit is 90 return bends that a size is DN300mm, and electricity generation unloading steam conduit is the pipeline (fig. 2) that a size is DN150mm and is 45 oblique angle connections with the standpipe in the backpressure unloading steam conduit, 1 muffler of two pipeline sharing, and 2 turnings in this electricity generation unloading steam conduit are the right angle, and the problem that exists at present is: because the emptying steam pipeline and the back pressure emptying steam pipeline are connected in an inclined angle of 45 degrees, two streams of steam impact each other in the merging process, and the noise is increased; because the corners are more, dead corners are more, and noise is high; the pipe diameter of the power generation and emptying steam pipeline is only DN150mm, the steam flow rate in the pipeline is too high, the thermal expansion is high, the noise is very large, the noise of the early stage site is more than 90 decibels, and the adverse effect is generated on the mind and body of workers.
Companies have therefore modified existing devices to reduce noise.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses transforming current power generation unloading steam conduit, through increasing the pipe diameter, being 45 oblique angle connected modes with backpressure unloading steam conduit original and transforming into an independent 90 return bends, avoiding producing the problem to the impulsive force between two unloading steam conduit, reduced noise pollution.
The technical scheme of the utility model is that:
one end of the power generation emptying steam pipeline is communicated with a power generation emptying exhaust port of the condensing steam turbine and is used for conveying high-temperature and high-pressure steam exhausted by the condensing steam turbine, the power generation emptying steam pipeline is a bent pipe with the size of DN300mm and the angle of 90 degrees, and the corner of the bent pipe in the power generation emptying steam pipeline is a round angle;
further, steam discharged from the top end of a vertical pipe I in the power generation and emptying steam pipeline is used for heat supply or the top end of the vertical pipe I is communicated with air inlets of a medium-pressure steam turbine and a low-pressure steam turbine, and a silencer is mounted on the vertical pipe I; furthermore, the flow of the steam outlet of the condensing steam turbine is 2-3 tons/hour or 7-8 tons/hour;
a back pressure type and condensing steam turbine emptying steam pipeline structure comprises a back pressure emptying steam pipeline, wherein one end of the back pressure emptying steam pipeline is communicated with a back pressure emptying exhaust port of a back pressure steam turbine and is used for conveying high-temperature and high-pressure steam exhausted by the back pressure steam turbine, the back pressure emptying steam pipeline is a bent pipe with the size of DN300mm and an angle of 90 degrees, a muffler is mounted on a vertical pipe II in the bent pipe, and the corner of the bent pipe in the back pressure emptying steam pipeline is a round angle; the vertical pipe I and the vertical pipe II are longitudinally on a horizontal line, the central points of the vertical pipe I and the vertical pipe II are superposed, and the vertical pipe I is connected with the vertical pipe II in the longitudinal vertical downward extending direction from the vertical pipe II; further, steam discharged from the top end of the vertical pipe II is used for supplying heat or the top end of the vertical pipe II is communicated with air inlets of a medium-pressure steam turbine and a low-pressure steam turbine, and further, the steam outlet flow of the back pressure steam turbine is 12.5-13 tons per hour;
further, when the vertical pipe I is connected with the vertical pipe II in the longitudinal vertical downward extending direction from the vertical pipe II, the size of the vertical pipe II can be DN400mm or DN500 mm;
furthermore, the power generation emptying steam pipeline and the back pressure emptying steam pipeline are provided with heat insulation, flame retardant and heat preservation devices on the whole body, and each heat insulation, flame retardant and heat preservation device comprises a plurality of support frames for supporting isolation layers and isolation layers wrapped on the outer edges of the support frames; further, the support frame consists of an outer ring, an inner ring and a plurality of struts for supporting the outer ring and the inner ring, the inner ring of the support frame is sleeved on the whole body of the power generation emptying steam pipeline, and is repeatedly wound and fixedly connected with the inner ring through an iron wire and then wound on the power generation emptying steam pipeline for a plurality of circles to realize the fixation of the support frame; after the support frames are fixed on the power generation emptying steam pipeline at intervals, the isolation layer is wound on the outer edge of the whole outer ring, and/or the isolation layer is wound on the outer ring after a plurality of steel wires further penetrate through the isolation layer to realize the fixation of the isolation layer;
further, the isolation layer has a certain thickness and has the functions of high temperature resistance, sound insulation and flame retardance; the support frame is made of high-temperature-resistant light materials;
the beneficial effects of the utility model are that:
the utility model discloses reform transform into the return bend that the pipe diameter is DN300mm with the power generation unloading steam conduit that original pipe diameter is DN150mm to be an independent 90 return bends with the backpressure unloading steam conduit that is 45 oblique angle connected mode, this return bend can heat supply alone or with the steam inlet lug connection of current medium, low pressure steam turbine, consequently do not have the problem that produces the offset force between two unloading steam conduits, not only reduced noise pollution, the noise has reduced to 65 decibels by 90 decibels at present, and make steam keep steady state;
or the vertical pipe I and the vertical pipe II are longitudinally arranged on the same horizontal line and the central points of the vertical pipe I and the vertical pipe II coincide, and the vertical pipe I is connected with the vertical pipe II from the longitudinal vertical downward extension direction of the vertical pipe II, so that when two streams of steam converge, the steam in the power generation emptying steam pipeline plays a role of boosting the steam in the back pressure emptying steam pipeline, although the noise is increased, no dead angle exists, and therefore, the power of the steam is reduced by more than 90 decibels than the previous one, the steam power is increased, and the recovery of kinetic energy of a subsequent heat supply medium-pressure steam turbine and a subsequent low-pressure steam turbine is facilitated;
the steam power is bigger, and the more be favorable to later stage heat supply or middle and low pressure steam turbine to retrieve kinetic energy, because this a power generation unloading steam conduit and backpressure unloading steam conduit for carrying high temperature steam all only have 1 turning, and the turning is the fillet, has avoided because of high temperature steam conduit overlength or turning too much increase noise pollution, and has caused the problem that steam power weakens.
Furthermore, the pipe diameter of the power generation emptying steam pipeline is increased, so that the noise pollution is reduced;
because the corner of the elbow is a round corner, impact force on the pipeline is reduced, noise pollution is reduced, and the problem that steam power is reduced or unstable due to the impact force is solved.
The heat-insulation flame-retardant heat-preservation device is favorable for preserving heat of steam in the emptying steam pipeline, and the support frame consists of the outer ring, the inner ring and a plurality of struts for supporting the outer ring and the inner ring, so that a certain distance is reserved between the isolation layer and the power generation emptying steam pipeline, and the improvement of sound insulation and heat preservation effects is facilitated.
Drawings
FIG. 1 is a schematic diagram of a steam pipeline for generating power and emptying after the steam recovery pipeline of the utility model is modified;
FIG. 2 is a schematic diagram of a blowdown steam line and a back pressure blowdown steam line prior to modification;
FIG. 3 is a schematic diagram of a modified blowdown steam line and a back pressure blowdown steam line;
FIG. 4 is a schematic view of a support frame arranged outside the power generation emptying steam pipeline;
FIG. 5 is a schematic view of the support;
in the figure:
1. power generation emptying steam pipeline 1-1, corner 1-2 and vertical pipe I
2. Silencer 3, back pressure emptying steam pipeline 3-1 and vertical pipe II
4. Support frame 4-1, outer ring 4-2 and inner ring
4-3, support
Detailed Description
Before transformation, a power generation emptying steam pipeline 1 is a pipeline (figure 2) which is DN150mm in size and is connected with a vertical pipe in a backpressure emptying steam pipeline 3 in a 45-degree oblique angle, the backpressure emptying steam pipeline 3 is a 90-degree bent pipe which is DN300mm in size, and a silencer 2 is mounted on the vertical pipe in the bent pipe; in the operation process, at 45 oblique angle junctions, steam in the electricity generation evacuation steam pipe 1 is 45 oblique angle contacts with the steam in the backpressure evacuation steam pipe 3, produces the impact force between two strands of steam, and consequently power is weakened, has caused steam unstability, has influenced later stage power generation effect, and is right when producing the impact force backpressure evacuation steam pipe 3 produces the impact force, consequently, the noise grow, combines electricity generation evacuation steam pipe 1 itself is very thin, and the steam velocity of flow in the pipeline is too high, and the thermal expansion is high, leads to the noise very big, and consequently job site's noise is more than 90 decibels, produces adverse effect to staff's mind and body.
Example 1:
the power generation emptying steam pipeline 1 is transformed into an independent pipeline (figure 1), namely: one end of a power generation emptying steam pipeline 1 is communicated with a power generation emptying exhaust port of a condensing steam turbine and is used for conveying high-temperature and high-pressure steam exhausted by the condensing steam turbine, the power generation emptying steam pipeline 1 is a bent pipe with the size of DN300mm and an angle of 90 degrees, and a corner 1-1 of the bent pipe in the power generation emptying steam pipeline 1 is a round corner; steam discharged from the top end of a vertical pipe I1-2 in the power generation emptying steam pipeline is used for heat supply or the top end of the vertical pipe I1-2 is communicated with air inlets of a medium-pressure steam turbine and a low-pressure steam turbine, and a silencer 2 is arranged on the vertical pipe I1-2; furthermore, the flow of a steam outlet of the condensing steam turbine is 2-3 tons per hour when the flow is small, and the flow is 7-8 tons per hour when the flow is large;
the steam is discharged from a power generation emptying steam outlet of the condensing steam turbine and enters a power generation emptying steam pipeline 1, the power generation emptying steam pipeline 1 with the original pipe diameter of DN150mm is reformed into a bent pipe with the pipe diameter of DN300mm, the original bent pipe and the backpressure emptying steam pipeline 3 are reformed into an independent 90-degree bent pipe in a 45-degree oblique angle connection mode, the bent pipe can independently supply heat or is directly connected with steam inlets of the existing medium-pressure and low-pressure steam turbines, and a vertical pipe I1-2 is combined with a silencer 2, so that the problem of generating offsetting force between the two emptying steam pipelines does not exist, noise pollution is reduced, the noise is reduced to 65 decibels from 90 decibels at present, and the steam keeps a stable state.
The steam outlet flow is matched with the bent pipe with the size of DN300mm, so that the noise is low, and the stability of air supply is not influenced.
Example 2:
a back pressure type and condensing steam turbine emptying steam pipeline structure comprises a back pressure emptying steam pipeline 3 and a power generation emptying steam pipeline 1 (figure 3), wherein one end of the back pressure emptying steam pipeline is communicated with a back pressure emptying exhaust port of a back pressure steam turbine, the power generation emptying steam pipeline 1 is a bent pipe with the size of DN300mm and the angle of 90 degrees, and a corner 1-1 of the bent pipe in the power generation emptying steam pipeline 1 is a round angle; the backpressure emptying steam pipeline 3 is an elbow pipe with the size of DN300mm and an angle of 90 degrees, the corner of the elbow pipe in the backpressure emptying steam pipeline is a round angle, the vertical pipe I1-2 and the vertical pipe II 3-1 are longitudinally on the same horizontal line, the central points of the vertical pipe I1-2 and the vertical pipe II 3-1 are overlapped, and the vertical pipe I1-2 is connected with the vertical pipe II 3-1 in the longitudinal vertical downward extending direction from the vertical pipe II 3-1; the steam discharged from the top end of the vertical pipe II 3-1 is used for heat supply or the top end of the vertical pipe II 3-1 is communicated with air inlets of a medium-pressure steam turbine and a low-pressure steam turbine, a silencer is mounted on the vertical pipe II 3-1, and the steam outlet flow of the back pressure steam turbine is 12.5-13 tons per hour;
through transformation, because the vertical pipe I1-2 and the vertical pipe II 3-1 are longitudinally arranged on a horizontal line and the central points of the vertical pipe I1-2 and the vertical pipe II 3-1 are overlapped, the vertical pipe I1-2 is connected with the vertical pipe II 3-1 from the longitudinal vertical downward extending direction of the vertical pipe II 3-1, when two streams of steam are overlapped, the steam in the power generation emptying steam pipeline 1 plays an upward pushing assisting role for the steam in the back pressure emptying steam pipeline 3, although the noise is increased, the noise is much smaller than the previous 90 decibels, the steam power is also increased, and the kinetic energy recovery of a follow-up heat supply medium and low pressure steam turbine is facilitated.
Furthermore, the power generation emptying steam pipeline 1 and the back pressure emptying steam pipeline 3 are provided with heat insulation, flame retardant and heat preservation devices all over, and each heat insulation, flame retardant and heat preservation device comprises a plurality of support frames 4 for supporting isolation layers and isolation layers wrapped on the outer edges of the support frames 4; further, the support frame 4 consists of an outer ring 4-1, an inner ring 4-2 and a plurality of struts 4-3 for supporting the outer ring 4-1 and the inner ring 4-2, the inner ring 4-2 of the support frame 4 is sleeved on the whole body of the power generation emptying steam pipeline 1, and the support frame 4 is fixed by winding an iron wire on the inner ring 4-2 repeatedly and fixedly connected with the power generation emptying steam pipeline 1 for a plurality of turns; after the support frames 4 are fixed on the power generation emptying steam pipeline 1 at intervals, the isolation layer is wound on the outer edge of all the outer rings 4-1, and/or a plurality of steel wires are wound on the outer rings 4-1 after further penetrating through the isolation layer to realize the fixation of the isolation layer;
further, the isolation layer has a certain thickness and has the functions of high temperature resistance, sound insulation and flame retardance; the support frame 4 is made of high-temperature-resistant light materials;
the heat-insulation flame-retardant heat-preservation device is favorable for preserving heat of steam in the emptying steam pipeline, and the support frame 4 consists of an outer ring 4-1, an inner ring 4-2 and a plurality of struts 4-3 for supporting the outer ring and the inner ring, so that a certain distance is formed between the isolation layer and the power generation emptying steam pipeline 1, and the sound insulation and heat preservation effects are favorable.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Although an embodiment of the present invention has been described in detail, the description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention. The equivalent changes and improvements made according to the application scope of the present invention should be still included in the patent coverage of the present invention.
Claims (7)
1. The utility model provides a back pressure type and condensing steam turbine exhaust steam conduit structure, includes the electricity generation exhaust steam conduit, the one end of electricity generation exhaust steam conduit and the electricity generation exhaust gas mouth intercommunication of condensing steam turbine for carry condensing steam turbine to use exhaust high temperature high pressure steam, its characterized in that: the power generation emptying steam pipeline is an elbow pipe which is DN300mm and is 90 degrees, and the corner of the elbow pipe in the power generation emptying steam pipeline is a round angle.
2. The steam vent piping structure of back-pressure and condensing turbine as claimed in claim 1, wherein: steam discharged from the top end of a vertical pipe I in the power generation emptying steam pipeline is used for heat supply or the top end of the vertical pipe I is communicated with air inlets of a medium-pressure steam turbine and a low-pressure steam turbine, and a silencer is mounted on the vertical pipe I; the steam outlet flow of the condensing steam turbine is 2-3 tons/hour or 7-8 tons/hour.
3. The steam vent piping structure of back-pressure and condensing turbine as claimed in claim 1, wherein: including backpressure unloading steam conduit, backpressure unloading steam conduit's one end and backpressure unloading gas vent intercommunication of backpressure steam turbine for carry backpressure steam turbine to use exhaust high temperature high pressure steam, backpressure unloading steam conduit is a return bend that is 90, should the turning of return bend is the fillet among the backpressure unloading steam conduit, and standpipe I and standpipe II vertically go up on a water flat line and the central point coincidence, standpipe I is connected with standpipe II from II vertical perpendicular downwardly extending directions of standpipe.
4. The steam vent piping structure of a back pressure and condensing turbine according to claim 3, wherein: and the steam discharged from the top end of the second vertical pipe is used for supplying heat or the top end of the second vertical pipe is communicated with air inlets of a medium-pressure steam turbine and a low-pressure steam turbine, a silencer is arranged on the second vertical pipe, and the steam outlet flow of the back pressure steam turbine is 12.5-13 tons per hour.
5. The steam vent piping structure of a back pressure and condensing turbine according to any one of claims 1 to 4, wherein: the power generation emptying steam pipeline and the back pressure emptying steam pipeline are provided with heat insulation, flame retardant and heat preservation devices on the whole body, and each heat insulation, flame retardant and heat preservation device comprises a plurality of support frames for supporting isolation layers and isolation layers wrapping the outer edges of the support frames.
6. The steam vent piping structure of back-pressure and condensing turbine according to claim 5, wherein: the support frame comprises outer loop, inner ring and many spinal branchs post that are used for supporting above-mentioned both, the inner ring cover of support frame is established around the power generation unloading steam conduit, twines many rings again and twines on power generation unloading steam conduit after fixing connection with the inner ring repeatedly through the iron wire realizes the fixed of support frame.
7. The steam vent piping structure of back-pressure and condensing turbine according to claim 6, wherein: after the support frames are fixed on the power generation emptying steam pipeline at intervals, the isolation layer is wound on the outer edge of the whole outer ring, or the isolation layer is wound on the outer ring after a plurality of steel wires penetrate through the isolation layer to realize the fixation of the isolation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123322159.XU CN217208308U (en) | 2021-12-27 | 2021-12-27 | Back pressure type and condensing steam turbine emptying steam pipeline structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123322159.XU CN217208308U (en) | 2021-12-27 | 2021-12-27 | Back pressure type and condensing steam turbine emptying steam pipeline structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217208308U true CN217208308U (en) | 2022-08-16 |
Family
ID=82785519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123322159.XU Active CN217208308U (en) | 2021-12-27 | 2021-12-27 | Back pressure type and condensing steam turbine emptying steam pipeline structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217208308U (en) |
-
2021
- 2021-12-27 CN CN202123322159.XU patent/CN217208308U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2817438B1 (en) | Methods and systems for energy conversion and generation involving electrolysis of water and hydrogenation of carbon dioxide to methane | |
| US10106404B2 (en) | Residual gas heat exchange combustion-supporting system based on methanol-water mixture reforming hydrogen production system, and method thereof | |
| WO2024032286A1 (en) | Direct-current superconducting liquid hydrogen energy pipeline system with liquid nitrogen cold shields | |
| CN217208308U (en) | Back pressure type and condensing steam turbine emptying steam pipeline structure | |
| RU2253917C2 (en) | Mode of exploiting of an atomic steam-turbine plant and an installation for executing it | |
| CN2932092Y (en) | Synthesis reactor and reaction heat utilization 2 in 1 device | |
| CN205480191U (en) | Liquefied natural gas circulation turbocharging system | |
| CN205400835U (en) | Utilize low -grade steam electric power's more than needed device | |
| WO2020001573A1 (en) | Method for preventing hydrogen from damaging pipe, oil transfer pipeline and manifold of oil refining hydrogen production reforming furnace employing method | |
| CN208205910U (en) | A kind of mounting structure of condensate water pot inlet tube and shell | |
| CN217057666U (en) | Heat supply system of exhaust-heat boiler of extraction condensing unit | |
| CN202099258U (en) | Novel natural gas precooler | |
| CN218154184U (en) | Waste heat recovery assembly based on synthetic ammonia process | |
| CN205843430U (en) | A kind of U-shaped shell-type liquefied natural gas gasifying device | |
| Zhu et al. | Research on localization of serpentine tube high pressure heater | |
| CN211624474U (en) | Joint structure for steam production device | |
| US20040228730A1 (en) | Pipes for steam power-plant | |
| CN217031349U (en) | Heating system based on steam-steam heat exchanger | |
| CN104975943B (en) | A kind of clean energy resource hybrid power ship cogeneration system and method | |
| JP3095434B2 (en) | Sodium-cooled fast breeder reactor plant | |
| CN219529102U (en) | Gas-steam combined cycle thermal electrolysis coupling supply system based on high-temperature heat storage | |
| CN219177673U (en) | Steam recycling system | |
| CN218329461U (en) | Low-pressure steam waste heat recovery equipment | |
| CN1240156C (en) | Coal gasification two stage high temperature fuel battery electric generating system | |
| CN220151467U (en) | Heat storage type water turbine and air-steam combined cycle cogeneration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |