CN114352364A - Main steam temperature control device - Google Patents
Main steam temperature control device Download PDFInfo
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- CN114352364A CN114352364A CN202110832960.4A CN202110832960A CN114352364A CN 114352364 A CN114352364 A CN 114352364A CN 202110832960 A CN202110832960 A CN 202110832960A CN 114352364 A CN114352364 A CN 114352364A
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- 238000001816 cooling Methods 0.000 claims abstract description 106
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 210000003437 trachea Anatomy 0.000 claims abstract description 19
- 239000000498 cooling water Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 33
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 25
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 25
- 241001330002 Bambuseae Species 0.000 claims description 25
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 25
- 239000011425 bamboo Substances 0.000 claims description 25
- 230000005574 cross-species transmission Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 230000000694 effects Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 238000010248 power generation Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a main steam temperature control device which comprises an air supply pipe for conveying steam, wherein one end of the air supply pipe is connected with a connecting piece, a main air pipe for conveying the steam and a cooling pipe for cooling the steam are connected onto the connecting piece, one end of the cooling pipe is connected onto the connecting piece, the other end of the cooling pipe is communicated with the main air pipe, a switch mechanism for enabling the steam to pass through the main air pipe or the cooling pipe is arranged on the connecting piece, a cooling cylinder sleeved outside the cooling pipe is arranged outside the cooling pipe, and cooling water for cooling the steam is filled in the cooling cylinder. When the steam temperature is too high, act on switch mechanism and make steam pass through from the cooling pipe, flow back to main trachea after cooling steam in, because cooling water and steam separation can not make steam spill over at the cooling in-process.
Description
Technical Field
The invention relates to the technical field of thermal power generation, in particular to a main steam temperature control device.
Background
With the rapid development of economic society, the environment is green and becomes the main melody of society. In the technical field of power generation, wind power generation and hydroelectric power generation are gradually emerging. However, conventional thermal power generation cannot be replaced, thermal power generation is the main power of power development in modern society, and the development direction of thermal power technology mainly considers the influence of power on the environment and the influence of power on non-renewable energy sources. In thermal power generation, performance requirements such as AGC regulation rate and response time of a unit are guaranteed, main steam pressure is controlled stably, and main steam temperature is guaranteed to be close to rated temperature.
The Chinese patent with the publication number of CN207486782U discloses a desuperheater for controlling the temperature of main steam of a boiler, which comprises a desuperheater cylinder body, wherein an inner cavity of the desuperheater cylinder body is provided with a heat insulation sleeve, the left side and the right side of the outer wall of the heat insulation sleeve are provided with screw fixing blocks, screws are inserted into the screw fixing blocks, the screws penetrate through the desuperheater cylinder body and are connected to the screw fixing blocks, the outer wall of the desuperheater cylinder body is provided with a water inlet pipe, the water inlet pipe penetrates through the desuperheater cylinder body and the heat insulation sleeve, the lower end face of a sprayer is provided with a spray head, the heat insulation sleeve is provided with a water outlet hole under the sprayer, the inner wall of the desuperheater cylinder body is provided with a water collecting tank below the water outlet hole, the bottom of the water collecting tank is provided with a water outlet pipe, the left end of the inner wall of the heat insulation sleeve is provided with a steam inlet thermometer, and the right end of the inner wall of the heat insulation sleeve is provided with a steam outlet thermometer, the desuperheater, the device has a simple structure, obvious temperature reduction effect and self-feedback regulation.
To above-mentioned correlation technique, the inventor thinks that when steam temperature is too high, the desuperheating water sprays the cooling to steam through the spray thrower, and the desuperheating water after cooling to steam enters into the water catch bowl, through the collector pipe drainage of bottom, and the in-process of discharge desuperheating water can make partial steam spill over from the outlet pipe, not only leads to the waste of steam, still has certain potential safety hazard.
Disclosure of Invention
In order to reduce the waste of cooling in-process steam, this application provides a main vapour temperature control device.
The application provides a main vapour temperature control device adopts following technical scheme:
the utility model provides a main vapour temperature control device, is including the blast pipe that is used for transporting steam, blast pipe one end is connected with the connecting piece, be connected with the main trachea that is used for transporting steam and carry out the cooling pipe that cools down to steam on the connecting piece, cooling pipe one end is connected on the connecting piece, the other end with main trachea intercommunication, be provided with on the connecting piece and make steam follow main trachea or the switching mechanism that the cooling pipe passed through, the cooling pipe is provided with outward and cup joints a cooling section of thick bamboo outside the cooling pipe, be equipped with the cooling water that cools down to steam in the cooling section of thick bamboo.
Through adopting above-mentioned technical scheme, in steam temperature is at normal range, make in steam directly enters into main trachea from the air-feed pipe, too high when steam temperature, act on-off mechanism, main trachea port is closed, and the cooling pipe port is opened, and steam enters into in the cooling pipe to under the effect of cooling water in the cooling section of thick bamboo, the temperature reduces, makes steam temperature control in the middle of the required scope.
Optionally, the connecting piece is a hollow connecting ball, the connecting ball comprises two hemispheres fixed together, the switch mechanism comprises a switch ball which is rotatably connected in the connecting ball and is hollow inside, a sealing gasket which is tightly propped against the outer wall of the switch ball is fixed on the inner wall of the hemisphere, the main air pipe and the cooling pipe are connected with the outer wall of the same hemisphere and communicated with the inner wall of the hemisphere, the air supply pipe is connected with the outer wall of the other hemisphere and communicated with the interior of the hemisphere, the switch ball is provided with an air vent which enables steam to enter the switch ball from the air supply pipe, the switch ball is provided with an exhaust port which enables the steam to be exhausted from the switch ball and enter the main air pipe or the cooling pipe, the switch mechanism further comprises a switch assembly which is arranged on the connecting ball and enables the exhaust port to be communicated with the main air pipe or the cooling pipe.
Through adopting above-mentioned technical scheme, too high when the steam temperature acts on the switch subassembly, makes the switch ball at the ball internal rotation of connecting, switch ball pivoted in-process, gas vent and main trachea port dislocation to make gas vent and cooling pipe port align, in steam enters into the switch ball from the air-supply pipe, in the refeed cooling pipe, steam flows through the in-process of cooling pipe, and the temperature reduction water in the cooling section of thick bamboo is cooled down steam and is handled.
Optionally, the guide way has been seted up to the connection ball inner wall, the switch module is including fixing switch ball outer wall and the joint that slides are in arc guide bar in the guide way, a plurality of drive tooth's sockets have been seted up to arc guide bar outer wall, set up on the connection ball and run through the switch slot of connecting the ball outer wall, it is fixed with driving motor to connect the ball external fixation, be fixed with drive gear on the driving motor output shaft, drive gear with drive tooth's socket meshing and drive switch ball and rotate, make the gas vent with main trachea or cooling tube intercommunication.
By adopting the technical scheme, when the temperature of the steam is too high, the driving motor is started to drive the driving gear to rotate, the driving tooth grooves meshed with the driving gear drive the switch ball to rotate, the exhaust port is aligned with the port of the cooling pipe, the steam enters the cooling cylinder, and redundant heat is transferred to the cooling water through heat transfer, so that the purpose of cooling is achieved; when the steam temperature returns to the specified range, the driving motor drives the driving gear to rotate, so that the exhaust port is communicated with the port of the main air pipe, and the steam is sent into the main air pipe.
Optionally, the cooling pipe is including connecting intake pipe and connection on the connecting ball are in outlet duct on the main trachea, the intake pipe with the outlet duct tip all is connected with inside hollow mounting disc, the intake pipe with the outlet duct with the inside intercommunication of mounting disc, cooling section of thick bamboo connects two the mounting disc, set up the inlet tube and the outlet pipe that can open on the cooling section of thick bamboo, be provided with a plurality of return bends of connecting two mounting discs on the mounting disc, the return bend both ends with correspond the inside intercommunication of mounting disc and supply steam to be in the circulation in the return bend.
Through adopting above-mentioned technical scheme, steam enters into in the cooling tube to in entering into the mounting disc, the steam that enters into in the mounting disc enters into a plurality of elbows, and carries out the heat exchange with cooling water, has increased the area of contact of steam with the cooling water, is convenient for cool down steam, has improved the efficiency of cooling.
Optionally, the mounting disc is including connecting connection pad in the intake pipe and connecting control panel on the outlet duct, the control panel is kept away from the terminal surface of connection pad be fixed with the control tube of the inside intercommunication of control panel, the outlet duct is connected on the control tube, the connection pad is kept away from the terminal surface of control panel be connected with the connecting pipe of the inside intercommunication of connection pad, intake-tube connection be in on the connecting pipe, the terminal surface that the connecting pipe was kept away from to the connection pad is fixed with the connecting cylinder, cooling cylinder both ends inner wall offer be used for with the thread groove that connecting cylinder and control panel are connected, the connection pad with set up the seal assembly who plays sealed effect on the connection pad.
Through adopting above-mentioned technical scheme, two mounting discs of a cooling section of thick bamboo threaded connection, the mounting of the mounting disc on a cooling section of thick bamboo of being convenient for is with dismantling, the maintenance of the inside of being convenient for simultaneously and the change of return bend.
Optionally, the connection pad is just right first seal groove has been seted up on the surface of control panel, seal assembly is including bonding cooling section of thick bamboo terminal surface and support tightly first sealing washer in the first seal groove, the control panel deviates from the second seal groove has been seted up on the terminal surface of connection pad, the terminal surface that first sealing washer was kept away from to a cooling section of thick bamboo is fixed with the spacing ring, be fixed with the joint on the spacing ring and be in butt joint ring in the second seal groove, be fixed with on the butt joint ring and support tightly second sealing washer in the second seal groove.
Through adopting above-mentioned technical scheme, rotate a cooling section of thick bamboo, make a cooling section of thick bamboo relatively rotate with connection pad and control panel, connection pad and control panel threaded connection are in a cooling section of thick bamboo, and at the in-process of rotating a cooling section of thick bamboo, the first sealing washer butt of a cooling section of thick bamboo one end is in first seal groove, and the spacing ring of a cooling section of thick bamboo other end drives the second sealing washer and supports tightly in the second seal groove, prevents that the cooling water in a cooling section of thick bamboo from spilling over from a cooling section of thick bamboo both ends.
Optionally, the return bend is the coil pipe and the projection coincidence each other on vertical plane, and is same the line of the flex point of return bend one end is vertical setting, the return bend is close to the flex point department of control panel is connected with the air duct that makes return bend and the inside intercommunication of control panel, the control panel can be opened and be provided with control in the control panel the air duct port is opened or closed actuating mechanism.
Through adopting above-mentioned technical scheme, act on actuating mechanism, make the switch board with the air duct port closure that corresponds for change steam in the motion route of return bend, thereby change the time of steam motion in a section of thick bamboo of cooling, and then the heat transfer's of control steam and cooling water energy.
Optionally, the driving mechanism includes a plurality of switch boards that slide and set up in the control panel, and a plurality of switch boards are parallel to each other and are used for sealing the port of a plurality of air ducts on the same height, the control panel internal fixation has the drive cylinder that drives the switch board and control the opening of air duct port and closure.
By adopting the technical scheme, the steam-water separation device acts on the driving mechanism, so that the driving mechanism drives the plurality of switch plates to synchronously move downwards to cover the ports of the air guide tubes, the ports of the air guide tubes are closed by the switch plates in the downwards moving process of the switch plates, the ports of the air guide tubes above the switch plates are closed, and steam overflows from the ports of the air guide tubes below the switch plates, so that the moving distance of the steam in the bent tube is changed.
Optionally, the air duct that is located the upper end arrives the air duct that is located the below arrives the distance of return bend air inlet, be provided with the actuating lever of connecting a plurality of switch boards on the switch board, it fixes one of them to drive actuating cylinder the switch board just drives the in-process of switch board downstream and closes the air duct port below with the air duct port closure after earlier being located the air duct port closure of top.
Through adopting above-mentioned technical scheme, the drive starts and drives the switch board downstream, and under the effect of actuating lever, the synchronous downstream of a plurality of switch boards, the switch board that is located the top is with the port closure back that corresponds the air duct earlier, and the air duct port that is located the below is covered by the switch board that corresponds gradually, makes the switch board can not be closed with a plurality of air duct ports simultaneously and lead to steam can't spill over from the air duct.
Optionally, be parallel to the plane of control panel axis will the control panel falls into and is used for accomodating containing box and the storage cap of connection on the containing box of switch board and drive actuating cylinder, be fixed with the installing frame on the containing box open-ended terminal surface, it offers and is used for the joint to accomodate cap open-ended terminal surface the mounting groove of installing frame, be fixed with on the installing frame and support tightly just play sealing effect's rubber circle in the mounting groove.
Through adopting above-mentioned technical scheme, the control panel includes containing box and accomodates the cap, the opening of the control panel of being convenient for, the maintenance of the inner structure of being convenient for simultaneously and the change of part.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the temperature of the steam is too high, the driving motor drives the driving gear to rotate, the driving tooth socket meshed with the driving gear drives the switch ball to rotate, the exhaust port is aligned with the port of the cooling pipe, the steam enters the cooling pipe, and the temperature is reduced under the action of cooling water in the cooling cylinder, so that the temperature of the steam is controlled in a required range;
2. the serpentine pipe is used for increasing the movement path of the steam in the cooling cylinder, so that the steam and the cooling water can exchange heat conveniently.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a switching mechanism according to an embodiment of the present application.
Fig. 3 is a schematic view of the internal structure of the cooling cylinder in the embodiment of the present application.
FIG. 4 is a schematic diagram of an internal structure of a control panel according to an embodiment of the present invention.
FIG. 5 is a schematic structural diagram of the containing box of the embodiment of the present application in the containing box and used for showing the installation frame.
FIG. 6 is a schematic structural diagram of the containing box of the embodiment of the present application in the containing box and used for displaying the installation groove.
Description of reference numerals:
1. an air supply pipe; 2. a connecting ball; 3. a main air pipe; 4. a cooling pipe; 5. a switch ball; 6. a gasket; 7. a vent; 8. an exhaust port; 9. a guide groove; 10. an arc-shaped guide rod; 11. a drive gullet; 12. a switch slot; 13. a drive motor; 14. a drive gear; 15. an air outlet pipe; 16. an air inlet pipe; 17. a connecting pipe; 18. a control tube; 19. a control panel; 20. a connecting disc; 21. bending the pipe; 22. a cooling cylinder; 23. a water inlet pipe; 24. a water outlet pipe; 25. a connecting cylinder; 26. a thread groove; 27. a first seal groove; 28. a first seal ring; 29. a limiting ring; 30. a butting ring; 31. a second seal groove; 32. a second seal ring; 33. an air duct; 34. a switch plate; 35. a drive rod; 36. a driving cylinder; 37. a storage box; 38. a storage cap; 39. mounting grooves; 40. installing a frame; 41. a rubber ring.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a main steam temperature control device. Referring to fig. 1, including the blast pipe 1 that is used for transporting steam, blast pipe 1 one end is connected with the connecting piece, and the connecting piece is inside cavity and is connected ball 2 with blast pipe 1 intercommunication, is connected with main trachea 3 and cooling tube 4 with being connected ball 2 intercommunication on connecting ball 2, and cooling tube 4, main trachea 3 and blast pipe 1 axis are located the plane through connecting ball 2 centre of sphere. The main air pipe 3 is used for conveying steam in a normal temperature range, and the cooling pipe 4 is used for cooling steam with overhigh temperature, so that the temperature of the steam is reduced to be in the normal range.
Referring to fig. 1 and 2, the connection ball 2 includes two hemispheroids connected together, the two hemispheroids are connected through a flange, a switch mechanism for making steam only enter the main gas pipe 3 or the cooling pipe 4 is arranged in the connection ball 2, the switch mechanism includes a switch ball 5 rotatably connected in the connection ball 2, a sealing gasket 6 tightly contacted with the outer wall of the switch ball 5 and playing a sealing role is bonded on the inner wall of the hemispheroid, the switch ball 5 is hollow, a vent 7 penetrating through the outer wall of the switch ball 5 is radially arranged on the outer wall of the switch ball 5, the opening of the vent 7 is far larger than that of the gas supply pipe 1, an exhaust port 8 penetrating through the outer wall of the switch ball 5 is radially arranged on the outer wall of the switch ball 5, the exhaust port 8 is coaxial with the vent 7, the exhaust port 8 can be aligned with the port of the main gas pipe 3 or the port of the cooling pipe 4, and the steam enters the switch ball 5 from the vent 7 and enters the main gas pipe 3 or the cooling pipe 4 after overflowing from the exhaust port 8.
Referring to fig. 1 and 2, main gas tube 3 axis, 4 axes of cooling tube and 5 centre of sphere coplanarities of switch ball, switch ball 5 has seted up the guide way 9 of axis through 5 centre of sphere of switch ball, switching mechanism still includes integrated into one piece in the arc guide bar 10 of connecting 2 outer walls of ball, arc guide bar 10 is partly of ring and axis through 5 centre of sphere of switch ball, arc guide bar 10 joint that slides is in guide way 9, a plurality of drive tooth's socket 11 have been seted up to arc guide bar 10 outer wall, a plurality of drive tooth's socket 11 are along 10 circumference evenly distributed of arc guide bar, connect 2 outer walls of ball and seted up through connection ball 2 this side outer wall's switch groove 12, it has driving motor 13 to connect 2 outer walls of ball through the bolt or bond, the welding has drive gear 14 on the driving motor 13 output shaft, drive gear 14 stretches into in switch groove 12 and drives tooth's socket 11 meshes. When the temperature of the steam is in a normal range, the driving motor 13 drives the driving gear 14 to rotate, the driving tooth grooves 11 meshed with the driving gear 14 drive the switch ball 5 to rotate, and when the exhaust port 8 is communicated with the main air pipe 3, the steam enters the switch ball 5 from the air supply pipe 1 through the vent 7 and enters the main air pipe 3 from the exhaust port 8; when the steam temperature is too high, the driving motor 13 drives the driving gear 14 to rotate reversely, the driving tooth grooves 11 meshed with the driving gear 14 drive the switch ball 5 to rotate, the exhaust port 8 is communicated with the cooling pipe 4, and the steam enters the switch ball 5 through the vent 7 from the air supply pipe 1 and enters the cooling pipe 4 from the exhaust port 8.
Referring to fig. 1 and 3, cooling pipe 4 includes intake pipe 16 and the outlet duct 15 of integrated into one piece on main trachea 3 of integrated into one piece on connecting ball 2, outlet duct 15 and main trachea 3 intercommunication, intake pipe 16 one end is connected on connecting ball 2, the other end has connecting pipe 17 through flange connection, 15 one end of outlet duct is connected on main trachea 3, the other end has control tube 18 through flange connection, control tube 18 is coaxial with connecting pipe 17, all be connected with inside hollow mounting disc on control tube 18 and the connecting pipe 17, the mounting disc includes control panel 19 of being connected with control tube 18 and connection pad 20 of being connected with connecting pipe 17, control tube 18 integrated into one piece is in connection pad 20 terminal surface, control tube 18 is coaxial with control panel 19 and with the inside intercommunication of control panel 19, connecting pipe 17 integrated into one piece is in connection pad 20 terminal surface, connecting pipe 17 is coaxial with connection pad 20 and with connection pad 20 inside intercommunication. The connecting disc 20 is provided with a plurality of bent pipes 21 connected with the control disc 19, the bent pipes 21 are communicated with the control disc 19 and the connecting disc 20, a cooling cylinder 22 connected with the controllable disc 19 and covering the plurality of bent pipes 21 is arranged outside the connecting disc 20, the cooling cylinder 22 is filled with cooling water for cooling steam in the bent pipes 21, and the outer wall of the cooling cylinder 22 is connected with a water inlet pipe 23 and a water outlet pipe 24 which are communicated with the interior of the cooling cylinder 22 and can be opened.
Referring to fig. 1 and 3, a connecting cylinder 25 coaxial with the connecting disc 20 is integrally formed on the end surface of the connecting disc 20 away from the connecting pipe 17, threaded grooves 26 are formed in the inner walls of the two ends of the cooling cylinder 22, the threaded grooves 26 connect the corresponding control disc 19 and the outer wall of the connecting cylinder 25, and sealing components for sealing are arranged on the connecting disc 20 and the control disc 19. The surface of the connecting disc 20 opposite to the control disc 19 is provided with a first sealing groove 27, the first sealing groove 27 is coaxial with the connecting disc 20 and is positioned outside the connecting cylinder 25, the sealing assembly comprises a first sealing ring 28 adhered on the end surface of the cooling cylinder 22, when the cooling cylinder 22 is in threaded connection with the outer wall of the connecting cylinder 25, the end surface of the cooling cylinder 22 pushes the first sealing ring 28 to be tightly abutted against the first sealing groove 27, the end surface of the control disc 19 departing from the connecting disc 20 is provided with a second sealing groove 31, the second sealing groove 31 is coaxial with the control disc 19 and surrounds the control tube 18, the end surface of the cooling cylinder 22 far away from the first sealing ring 28 is integrally formed with a limiting ring 29, the limiting ring 29 is coaxial with the cooling cylinder 22, the end surface of the limiting ring 29 close to the control disc 19 is integrally formed with an abutting ring 30, the abutting ring 30 is coaxial with the cooling cylinder 22, the end surface of the abutting ring 30 is adhered with a second sealing ring 32 abutted against the second sealing groove 31, the cooling water is prevented from overflowing from the cooling cylinder 22.
Referring to fig. 1 and 3, the elbow 21 is the coiled pipe and the projection on the vertical plane coincides each other, and the line of the same elbow 21 with the inflection point of one side is vertical setting, and the inflection point department that the elbow 21 is close to control panel 19 is connected with air duct 33, and air duct 33 is horizontal setting, and air duct 33 one end welding is in the inflection point department of elbow 21 and with the inside intercommunication of elbow 21, and the other end welding is on control panel 19's the terminal surface and with the inside intercommunication of control panel 19. The distance from the air duct 33 at the upper end to the air inlet of the elbow 21 is larger than the distance from the air duct 33 at the lower end to the air inlet of the elbow 21, so that when steam overflows from the air duct 33 at the upper end, the distance taken in the elbow 21 is smaller than the distance taken when the steam overflows from the air duct 33 at the lower end, and the energy transferred by the heat exchange between the steam and the cooling water is smaller than the energy transferred when the steam overflows from the air duct 33 at the lower end. The steam overflows from the different gas ducts 33 according to the temperature of the steam, so that the temperature of the steam after heat exchange with the cooling water is within a predetermined range.
Referring to fig. 3 and 4, a driving mechanism for controlling the opening or closing of the port of the air duct 33 is arranged in the control panel 19, the driving mechanism includes a plurality of switch plates 34 slidably arranged on the inner wall of the control panel 19, the switch plates 34 are parallel to each other, the widths of the switch plates 34 are gradually reduced from top to bottom, the same switch plate 34 is used for sealing the ports of the air ducts 33 at the same height, a driving rod 35 connected with the switch plates 34 is welded on the switch plate 34, a driving cylinder 36 is fixed in the control panel 19 through a bolt, a connecting rod of the driving cylinder 36 is welded on one of the switch plates 34 and drives the switch plates 34 to move synchronously, and when the driving cylinder 36 drives the switch plates 34 to move downwards, the ports of the air ducts 33 at the corresponding height are sequentially closed from top to bottom. In the process that the driving cylinder 36 drives the switch plates 34 to move downwards, the port of the air duct 33 at the top is closed firstly, after the port of the air duct 33 at the top is completely closed, the port of the air duct 33 at the second height is gradually closed, and so on until the ports of all the air ducts 33 are closed, steam overflows from the end part of the bent pipe 21, at the moment, the path of the steam moving in the bent pipe 21 is longest, and the energy of heat exchange is also the largest.
Referring to fig. 6, a plane parallel to the axis of the control panel 19 divides the control panel 19 into a storage box 37 for storing the switch board 34 and the driving cylinder 36 and a storage cap 38 connected to the storage box 37, an installation frame 40 surrounding the opening is bonded on the open end surface of the storage box 37, an installation groove 39 surrounding the opening of the storage cap 38 is formed on the open end surface of the storage cap 38, a rubber ring 41 for sealing is bonded in the installation groove 39, the storage cap 38 is installed on the storage box 37, the installation frame 40 abuts against the rubber ring 41 in the installation groove 39, and the cooling cylinder 22 is screwed on the outer wall of the control panel 19, so that the storage cap 38 is fixed on the storage box 37, and the storage cap 38 is prevented from being separated from the storage box 37.
The implementation principle of the main steam temperature control device in the embodiment of the application is as follows: when the steam temperature is too high, the driving motor 13 drives the driving gear 14 to rotate, the driving tooth socket 11 meshed with the driving gear 14 drives the switch ball 5 to rotate, the exhaust port 8 is aligned with the port of the cooling pipe 4, the steam enters the air inlet pipe 16, the steam enters the connecting disc 20 through the connecting pipe 17, the steam entering the connecting disc 20 enters the bent pipe 21, the heat exchange is completed under the effect of the cooling water, the steam temperature is reduced to a specified range, the steam after the temperature is reduced enters the control disc 19, the steam passes through the control pipe 18 and returns to the main air pipe 3 after the air outlet pipe 15, and the steam is utilized in the later period.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A main steam temperature control device is characterized in that: including air feed pipe (1) that is used for transporting steam, air feed pipe (1) one end is connected with the connecting piece, be connected with on the connecting piece and be used for transporting main trachea (3) of steam and carry out cooling pipe (4) that cool down to steam, cooling pipe (4) one end is connected on the connecting piece, the other end with main trachea (3) intercommunication, be provided with on the connecting piece and make steam follow main trachea (3) or the on-off mechanism that cooling pipe (4) pass through, cooling pipe (4) are provided with outward and cup joint cooling section of thick bamboo (22) outside cooling pipe (4), be equipped with the cooling water that cools down to steam in the cooling section of thick bamboo (22).
2. A main steam temperature control apparatus according to claim 1, wherein: the connecting piece is a hollow connecting ball (2), the connecting ball (2) comprises two hemispheroids fixed together, the switch mechanism comprises a switch ball (5) which is rotatably connected in the connecting ball (2) and is hollow inside, a sealing gasket (6) which is tightly abutted against the outer wall of the switch ball (5) is fixed on the inner wall of the hemispheroid, the main air pipe (3) and the cooling pipe (4) are connected on the outer wall of the same hemispheroid and communicated with the inner wall of the hemispheroid, the air supply pipe (1) is connected on the outer wall of the other hemispheroid and communicated with the inside of the hemispheroid, the switch ball (5) is provided with an air vent (7) which enables steam to enter the switch ball (5) from the air supply pipe (1), the switch ball (5) is provided with an air vent (8) which enables the steam to be discharged from the switch ball (5) and enter the main air pipe (3) or the cooling pipe (4), the switch mechanism further comprises a switch assembly which is arranged on the connecting ball (2) and enables the exhaust port (8) to be communicated with the main air pipe (3) or the cooling pipe (4).
3. A main steam temperature control apparatus according to claim 2, wherein: connect ball (2) inner wall and seted up guide way (9), the switch module is including fixing switch ball (5) outer wall and the joint that slides are in arc guide bar (10) in guide way (9), a plurality of drive tooth's socket (11) have been seted up to arc guide bar (10) outer wall, it runs through to have seted up on ball (2) switch groove (12) of connecting ball (2) outer wall, it has driving motor (13) to connect ball (2) external fixation, be fixed with drive gear (14) on driving motor (13) output shaft, drive gear (14) with drive tooth's socket (11) meshing drives switch ball (5) and rotates, make gas vent (8) with main trachea (3) or cooling tube (4) intercommunication.
4. A main steam temperature control apparatus according to claim 2, wherein: cooling pipe (4) are including connecting intake pipe (16) on connecting ball (2) and connecting outlet duct (15) on main trachea (3), intake pipe (16) with outlet duct (15) tip all is connected with inside hollow mounting disc, intake pipe (16) with outlet duct (15) with the inside intercommunication of mounting disc, two is connected in a cooling section of thick bamboo (22) the mounting disc, set up inlet tube (23) and outlet pipe (24) that can open on a cooling section of thick bamboo (22), be provided with a plurality of return bends (21) of connecting two mounting discs on the mounting disc, return bend (21) both ends with correspond inside intercommunication of mounting disc and steam supply are in circulation in return bend (21).
5. The main steam temperature control device according to claim 4, characterized in that: the mounting disc comprises a connecting disc (20) connected to the air inlet pipe (16) and a control disc (19) connected to the air outlet pipe (15), a control pipe (18) communicated with the inside of the control disc (19) is fixed on the end surface of the control disc (19) far away from the connecting disc (20), the air outlet pipe (15) is connected to the control pipe (18), the end face, far away from the control disc (19), of the connecting disc (20) is connected with a connecting pipe (17) communicated with the inside of the connecting disc (20), the air inlet pipe (16) is connected to the connecting pipe (17), a connecting cylinder (25) is fixed on the end surface of the connecting disc (20) far away from the connecting pipe (17), the inner walls of the two ends of the cooling cylinder (22) are provided with thread grooves (26) which are used for being connected with the connecting cylinder (25) and the control panel (19), and a sealing assembly for sealing is arranged on the connecting disc (20) and the connecting disc (20).
6. A main steam temperature control apparatus according to claim 5, wherein: connection pad (20) are just right first seal groove (27) have been seted up on the surface of control panel (19), seal assembly is including bonding cooling section of thick bamboo (22) terminal surface and support tightly first sealing washer (28) in first seal groove (27), control panel (19) deviate from second seal groove (31) have been seted up on the terminal surface of connection pad (20), the terminal surface that first sealing washer (28) were kept away from in cooling section of thick bamboo (22) is fixed with spacing ring (29), be fixed with the joint on spacing ring (29) and be in butt ring (30) in second seal groove (31), be fixed with on butt ring (30) and support tightly second sealing washer (32) in second seal groove (31).
7. The main steam temperature control device according to claim 6, characterized in that: elbow pipe (21) are the coiled pipe and coincide each other in the projection on vertical plane, it is same the line of the flex point of elbow pipe (21) one end is vertical setting, elbow pipe (21) are close to the flex point department of control panel (19) is connected with air duct (33) that make elbow pipe (21) and control panel (19) inside intercommunication, control panel (19) can be opened and be provided with control in control panel (19) air duct (33) port is opened or closed actuating mechanism.
8. A main steam temperature control apparatus according to claim 7, wherein: the drive mechanism is including sliding the setting a plurality of switch boards (34) in control panel (19), a plurality of switch boards (34) are parallel to each other and are used for sealing the port of a plurality of air ducts (33) on the same height, control panel (19) internal fixation has drive switch board (34) control air duct (33) port and open and closed drive actuating cylinder (36).
9. A main steam temperature control apparatus according to claim 8, wherein: air duct (33) that are located the upper end arrive the distance of return bend (21) air inlet is greater than air duct (33) that are located the below and arrives the distance of return bend (21) air inlet, be provided with actuating lever (35) of connecting a plurality of switch boards (34) on switch board (34), it fixes one of them to drive actuating cylinder (36) switch board (34) and drive switch board (34) downstream's in-process earlier closed back with below air duct (33) port again of air duct (33) port that are located the top.
10. A main steam temperature control apparatus according to claim 9, wherein: be on a parallel with the plane of control panel (19) axis will control panel (19) fall into and are used for accomodating containing box (37) and the storage cap (38) of connection on containing box (37) of switch board (34) and drive actuating cylinder (36), be fixed with installing frame (40) on containing box (37) open-ended terminal surface, storage cap (38) open-ended terminal surface is seted up and is used for the joint installing groove (39) of installing frame (40), be fixed with on installing frame (40) and support tightly and be in just play sealing function's rubber circle (41) in installing groove (39).
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