CN202208057U - Waste steam recovery system for pipe pile production still kettles - Google Patents
Waste steam recovery system for pipe pile production still kettles Download PDFInfo
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- CN202208057U CN202208057U CN2011202414198U CN201120241419U CN202208057U CN 202208057 U CN202208057 U CN 202208057U CN 2011202414198 U CN2011202414198 U CN 2011202414198U CN 201120241419 U CN201120241419 U CN 201120241419U CN 202208057 U CN202208057 U CN 202208057U
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Abstract
The utility model provides a waste steam recovery system for pipe pile production still kettles, which comprises at least two still kettles, steam supply pipes and steam discharging pipes. Each still kettle is provided with a steam inlet and a water outlet, at least one still kettle is provided with a steam outlet, the steam supply pipes are connected to the steam inlets, and the steam discharging pipes are connected to the steam outlets. The waste steam recovery system is characterized by further comprising steam-steam ejectors, a water-water ejector, a buffer and a flash drum. The steam discharging pipes are connected to the steam supply pipes through the steam-steam ejectors, the water outlets of the still kettles are connected to the buffer through water outlet pipes, an outlet of the buffer is connected to the flash drum through the water-water ejectors, and a steam outlet of the flash drum is connected to the steam supply pipes by the steam-steam ejectors through flash steam pipes. By means of the waste steam recovery system, waste steam in a discharging kettle can be discharged continuously when the pressure in the discharging kettle is decreased to 0.5MPa or balanced with that in a steam receiving kettle.
Description
[technical field]
The utility model relates to a kind of pile tube production and presses the surplus steam reclamation system that steams still.
[background technology]
In the prestressed concrete pipe pile production process, generally adopt to press steam still pile tube is carried out the technology of autoclave curing, in the hope of realizing the concrete strength and the length of time.Require during autoclave curing to adopt saturated vapor, the still internal gas pressure requires to reach 1.0MPa during constant temperature.When autoclave curing gets into temperature-fall period, can through steam guiding tube steam be poured the steam in the still into another usually and just steam in the still in the pressure in increasing temperature and pressure stage, utilize once more in the hope of making steam.But the still internal pressure reduces behind the surplus vapour along with pouring out, and pours out the still internal pressure and reduces to 0.5MPa or pour out pressure in the still when receiving vapour still internal pressure balance, and the surplus vapour of pouring out in the still can't be poured out again.
And, also have the great amount of high-temperature condensate to accumulate in the still in the still owing to pour out this moment, must surplus vapour and condensate discharging in the still is clean; The still internal gas pressure is made zero to open still door continued access production; Will open draining valve draining at the bottom of the still, when opening the draining valve draining, surplus vapour is also together discharged in the still for this reason; Do not recycle this moment, promptly produces the waste of a large amount of steam and condensate heat energy.Usually can be with the mode recovery section heat energy of condensate through heat exchange, but the steam of discharging is then realized reclaiming.The whole nation existing more than 400 tame pile tube manufacturing enterprise steams still in the pressure of using and reaches more than 1500, calculates with every annual 800 stills of producing, and annually wastes a large amount of surplus vapour heat energy.
[utility model content]
The technical problem that the utility model will solve is to provide a kind of pile tube production to press the surplus steam reclamation system that steams still, and the surplus vapour of pouring out in the still is recycled more fully.
The utility model is achieved in that a kind of surplus steam reclamation system of pile tube production pressure steaming still; Comprise that at least two press the steaming still; Steam supply pipe and fall steam pipe, press to steam on the still and be provided with air intake and discharge outlet, at least one pressure is steamed still and is provided with down steam ports, said steam supply pipe is connected to air intake; Said steam pipe is connected to down steam ports; It is characterized in that: also comprise vapour vapour injector, water water jet device, buffer and flash tank, said steam pipe is connected to steam supply pipe through said vapour vapour injector, and the discharge outlet that said pressure is steamed still is connected to said buffer through drainpipe; The outlet of said buffer is connected to flash tank through said water water jet device, and the exhaust outlet of this flash tank is connected to steam supply pipe through the flash distillation steam pipe via said vapour vapour injector.When steam supply pipe when press steaming the still steam supply; High steam is through vapour vapour injector, and this vapour vapour injector is equivalent to a unpowered pump, under the drive of the steam of steam supply pipe inner high voltage (being generally 1.05MPa), can produce eddy current; Thereby drive to press steaming in the still the surplus vapour of low pressure (being usually less than 0.5MPa) steams and falls vapour in the still by falling the pressure of steam pipe in boosting; Pressure in pouring out still is reduced to 0.5MPa or is poured out pressure in the still when receiving vapour still internal pressure balance, opens discharge outlet, buffer, water water jet device and the flash tank of pouring out still, and opens the flash tank exhaust valve; Pour out and get into vapour vapour injector after condensed water in high temperature that the discharge outlet in the still discharges produces a large amount of steam through the flash tank flash distillation; Under the effect of vapour vapour injector, get into steam supply pipe, make the surplus vapour of pouring out in the still still can continue to pour out, thereby make recovery more thorough.
Further, said flash distillation steam pipe is connected to falling on the steam pipe between said return valve and the vapour vapour injector earlier, falls steam pipe by this again and connects said vapour vapour injector; And said steam pipe is provided with a return valve, and the flash distillation steam pipe is provided with a flash tank exhaust valve.Its return valve is used to prevent that flash tank from doing the time spent, and the steam in the flash distillation steam pipe flows backward to down steam pipe.The flash tank exhaust valve is used to prevent that flash tank from not doing the time spent, and the steam that falls in the steam pipe flows backward in the flash distillation steam pipe.
Further, said flash tank also comprises a bypass outlet and a backflow import, and this bypass outlet is connected to said backflow import through return duct through said water water jet device again.With with in the flash tank not fully the steam of flash distillation reclaim flash distillation repeatedly, make flash distillation more abundant.
Further, said flash tank also comprises heat exchange outlet, and this heat exchange exports an end that is connected to one first heat exchanger through heat exchanger tube, and the other end of first heat exchanger is connected to a boiler softened water tank.The flash tank waste heat can be recovered with the soft water in the heating softened water tank.
Further, the said flash distillation steam pipe and the end that is connected to one second heat exchanger after steam pipe confluxes again that falls, the other end of second heat exchanger is connected to a boiler softened water tank.Make the flash distillation steam pipe and fall the waste heat of steam pipe and can be recovered with the soft water in the heating softened water tank.
Further, said steam pipe also was connected to the maintenance pond before connecting vapour vapour injector.Be that steam pipe capable of using is to maintenance pond steam supply.
Further, the steam pipe that falls that is in said pressure steaming still end is drawn an evacuated tube, and this evacuated tube is provided with the emptying valve, as pressing the safety-valve that steams still.One second evacuated tube is drawn at the discharge outlet place that said pressure is steamed still, and this second evacuated tube connects an evacuation port, and second evacuated tube is provided with the second emptying valve door, presses the still that steams still to press the whole emptyings of water, vapour of steaming in the still in front of the door to guarantee to open.。
Further, the outlet of said buffer also is connected directly to flash tank through another drainpipe, can the steam of the outlet of buffer directly be caused flash tank.
Further, said steam supply pipe comprises a main feed header and a plurality of steam supply arm, and said main feed header is connected to each respectively through each steam supply arm and presses the air intake that steams still, and said a plurality of steam supply arm is equipped with the steam supply valve; The said steam pipe that falls comprises fall vapour persons in charge and a plurality of arms of falling vapour, and the said person in charge of falling vapour is connected to the respectively steam ports of pressure steaming still respectively through the arm of falling vapour respectively, and said a plurality of arm of falling vapour is equipped with the door of falling the steam valve; Said drainpipe comprises a draining plural branch drain pipe of advocating peace; The discharge outlet that said each pressure is steamed still is connected to said buffer through a branch drain respectively; The outlet of said buffer is connected to flash tank through drain header via said water water jet device; And said a plurality of branch drain is equipped with the buffer valve, and a drain header valve is set on the drain header.The connection situation of control piper that so can be convenient.
The utlity model has following advantage: the steam ports that falls that press to steam still is connected to steam supply pipe by falling steam pipe through a vapour vapour injector; Discharge outlet connects buffer and flash tank by drainpipe more successively; Flash tank is connected to down steam pipe again; When steam supply pipe when press steaming the still steam supply, open vapour vapour injector, this vapour vapour injector is equivalent to a unpowered pump; Under the drive of the steam of steam supply pipe inner high voltage (being generally 1.05MPa), can produce eddy current; Steam and fall vapour in the still by falling the pressure of steam pipe in boosting thereby drive to press steam in the still the surplus vapour of low pressure (being usually less than 0.5MPa), the pressure in pouring out still is reduced to 0.5MPa or is poured out pressure in the still when receiving vapour still internal pressure balance, makes the surplus vapour of pouring out in the still still can continue to pour out by the path of pressing the discharge outlet, buffer, flash tank and the vapour vapour injector that steam still more again.Pour out the steam in the still to utilize to a greater extent.
[description of drawings]
Combine embodiment that the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the structural representation of surplus steam reclamation system one embodiment of the utility model.
[specific embodiment]
As shown in Figure 1; For surplus steam reclamation system one embodiment that steams still is pressed in the pile tube production of the utility model; It comprises that three press to be steamed stills 10, steam supply pipe G1, the G2 of falling the steam pipe, a vapour vapour injector 20, water water jet device 30, a buffer 40, a flash tank 50 and drainpipe G3; Steam supply pipe 1 comprises a main feed header G11 and three steam supply arm G12, and the said G2 of falling the steam pipe comprises the person in charge of falling a vapour G21 and three arm of falling vapour G22, presses to steam for three to be provided with air intake 101, discharge outlet 102 and the steam ports 103 that falls on the still 10.Said main feed header G11 is connected to three respectively through three steam supply arm G12 and presses the air intake 101 that steams still 10, and the said person in charge of falling vapour G2 is connected to down steam ports 103 respectively through three arm of falling vapour G22.The said G2 of falling the steam pipe is connected to the main feed header G12 among the steam supply pipe G1 through said vapour vapour injector 20.Said drainpipe G3 comprises three branch drain G32 and a drain header G31; The discharge outlet 102 that said each pressure is steamed still 10 is connected to said buffer 40 through a branch drain G32 respectively; The outlet of said buffer 40 is connected to flash tank 30 through drain header G31 via said water water jet device 30; And the outlet of said buffer 40 also is connected directly to flash tank 50 through another drain header G31-2, and drain header G31-2 can directly cause flash tank with the steam of the outlet of buffer.After the exhaust outlet 501 of this flash tank 50 is connected to the G2 of falling the steam pipe through flash distillation steam pipe G4, be connected to the main feed header G11 of steam supply pipe G1 again via said vapour vapour injector 20; And the said G2 of falling the steam pipe is provided with a return valve F3, specifically is arranged on the person in charge of the falling vapour G21, and flash distillation steam pipe G4 is provided with a flash tank exhaust valve F9.When steam supply pipe G1 when press steaming still 10 steam supplies; Open vapour vapour injector 20 and return valve F3; This vapour vapour injector 20 is equivalent to a unpowered pump, under the drive of the steam of steam supply pipe G1 inner high voltage (being generally 1.05MPa), can produce eddy current, steams in the still 10 the surplus vapour of low pressure (being usually less than 0.5MPa) and steams in the still 10 vapour by the pressure of the G2 of falling the steam pipe in boosting thereby drive to press; Therefore both made to press and steamed in the still 10 that pressure within the still is reduced to 0.5MPa or the pressure poured out in the still steams in the still 10 when receiving vapour still internal pressure balance with pressing as pouring out; Closing volume valve F3 again, the water jet device 30 of fetching boiling water, buffer 40 and flash tank 50, and open the flash tank exhaust valve F9 of flash tank 50; Get into vapour vapour injector 20 after pressing the condensed water in high temperature of pouring out discharge outlet 120 discharges in the still that steams in the still 10 to produce a large amount of steam through flash tank 50 flash distillations; Under the effect of vapour vapour injector 20, get into steam supply pipe G1, make the surplus vapour of pouring out in the still still can continue to pour out, thereby make recovery more thorough.Need to prove; The quantity that pressure among this embodiment is steamed still 1 is three, so steam supply arm G12 also is three with the arm of falling vapour G22, and wherein each among this embodiment presses steaming still 10 to be equipped with the arm of falling vapour G22; Can make three press to steam stills 10 and all can fall vapour each other; That is to say that three press to be steamed stills 10 and both can be used as and pour out still and also can be used as and receive the vapour still, but the utility model is not limited thereto, presses the quantity of steaming still 10 to be two; Also can be for a plurality of, the quantity of its steam supply arm G11 and the arm of falling vapour G22 and corresponding the getting final product of quantity of pressing steaming still 10.And being provided with of buffer 40 can reduce each pressure that press to steam the water vapours with pressure of discharging in still 10, but temperature remains unchanged, and is beneficial to steam and separates.After the exhaust outlet 501 of this flash tank 50 is connected to the G2 of falling the steam pipe through flash distillation steam pipe G4 in the present embodiment; Connect said vapour vapour injector 20 via the G2 of falling the steam pipe again; In other embodiments, the exhaust outlet 501 of flash tank 50 also can directly connect said vapour vapour injector 20 through flash distillation steam pipe G4.
Flash tank 50 among this embodiment also comprises a bypass outlet 502 and a backflow import 503, and this bypass outlet 502 is connected to said backflow import 503 through return duct G5 through said water water jet device 30 again.With with in the flash tank 50 not fully the steam of flash distillation reclaim flash distillation repeatedly, make flash distillation more abundant.
Flash tank 50 among this embodiment also comprises heat exchange outlet 504, and this heat exchange outlet 504 is connected to an end of one first heat exchanger 61 through heat exchanger tube G6, and the other end of first heat exchanger 61 is connected to a boiler softened water tank 70.Flash tank 50 waste heats can be recovered with the soft water in the heating softened water tank 70.And be connected to an end of one second heat exchanger 62 after said flash distillation steam pipe G4 confluxes with the G2 of falling the steam pipe again, the other end of second heat exchanger 62 is connected to a boiler softened water tank 70.The waste heat of flash distillation steam pipe G4 and the G2 of falling the steam pipe can be recovered with the soft water in the heating softened water tank 70.
Among this embodiment, the said G2 of falling the steam pipe also was connected to maintenance pond 80 before connecting vapour vapour injector 20.Be that the G2 of falling the steam pipe capable of using is to maintenance pond 80 steam supplies.
Among this embodiment; Said pressure is steamed still 10 and is drawn an evacuated tube G71 at the arm of falling vapour G22; Evacuated tube G71 is provided with emptying valve F11 as safety valve; Draw one second evacuated tube G72 and connect an evacuation port 90, the second evacuated tube G72 and be provided with second emptying valve door F12 at discharge outlet 102 places that said pressure is steamed still 10.To guarantee pressing the whole emptyings of water, vapour of steaming in the still 10 in front of the door opening still.
For the ease of controling, add valve on the pipeline in respectively connecting of the surplus steam reclamation system of the utility model, can press the concrete control of the surplus vapour recovery of steaming still 10.As:
1, the door of falling steam valve F2 is set on the arm of falling vapour G22; Steam supply valve F4 is set on the steam supply arm G12, establishes vapour vapour injector valve F5 and on the main feed header G21 of boiler room 100 connection vapour vapour injectors 20, boiler room steam supply valve F6 is set at the admission end of said vapour vapour injector 20 simultaneously; On the branch drain G32 of each pressure steaming still 10 connection buffer 40, buffer valve F7 is set, and on the drain header G31 of buffer 40 connection water water jet devices 30, a drain header valve F8 is set.
Press steaming still 10 should close steam supply valve F4 in constant-voltage phase; After accomplishing, constant-voltage phase gets into the buck stage of falling vapour; Open the door of falling steam valve F2; Open vapour vapour injector valve F5 and boiler room steam supply valve F6 simultaneously, bring main feed header G11 into, steam still 10 steam supplies thereby press to each thereby vapour vapour injector 20 can produce the vapour that eddy current will the G2 of falling the steam pipe.Press to steam in the still 10 that pressure within the still is reduced to 0.5MPa or the pressure poured out in the still steams in the still 10 when receiving vapour still internal pressure balance closing volume valve F3 with pressing as pouring out; Open buffer valve F7 and drain header valve F8, can surplus vapour be introduced flash tank 50 through water water jet device 30; Open the flash tank exhaust valve F9 of flash tank 50 again; Can the flash steam in the flash tank 50 be sent into main feed header G21 via the G2 of falling the steam pipe; Thereby press steaming still 10 steam supplies to each, owing to close return valve F3, thus the phenomenon among the G2 of falling the steam pipe can not appear flowing backward to.
3, pass through steam supply pipe G1 when a certain pressure is steamed still 10 steam supplies when boiler room 100, should open the steam supply valve F4 that this pressure is steamed still 10, close the door of falling steam valve F2;
4, be connected to one of maintenance pond 80 at the person in charge of falling vapour G2 and be in charge of and add maintenance pond valve F10, when press steam still 10 will be when vapour be sent in maintenance pond 80, open the door of falling steam valve F2 and maintenance pond valve F10 gets final product.
Though more than described the specific embodiment of the utility model; But the technical staff who is familiar with the present technique field is to be understood that; We described concrete embodiment is illustrative; Rather than being used for qualification to the scope of the utility model, those of ordinary skill in the art are in the modification and the variation of the equivalence of doing according to the spirit of the utility model, all should be encompassed in the scope that the claim of the utility model protects.
Claims (10)
1. the surplus steam reclamation system that steams still is pressed in a pile tube production; Comprise that at least two press the steaming still; Steam supply pipe and fall steam pipe, press to steam on the still and be provided with air intake and discharge outlet, at least one pressure is steamed still and is provided with down steam ports, said steam supply pipe is connected to air intake; Said steam pipe is connected to down steam ports; It is characterized in that: also comprise vapour vapour injector, water water jet device, buffer and flash tank, said steam pipe is connected to steam supply pipe through said vapour vapour injector, and the discharge outlet that said pressure is steamed still is connected to said buffer through drainpipe; The outlet of said buffer is connected to flash tank through said water water jet device, and the exhaust outlet of this flash tank is connected to steam supply pipe through the flash distillation steam pipe via said vapour vapour injector.
2. the surplus steam reclamation system that steams still is pressed in pile tube production according to claim 1, it is characterized in that: said flash distillation steam pipe is connected to falling on the steam pipe between said return valve and the vapour vapour injector earlier, falls steam pipe by this again and connects said vapour vapour injector; And said steam pipe is provided with a return valve, and the flash distillation steam pipe is provided with a flash tank exhaust valve.
3. the surplus steam reclamation system that steams still is pressed in pile tube production according to claim 1 and 2; It is characterized in that: said flash tank also comprises a bypass outlet and a backflow import, and this bypass outlet is connected to said backflow import through return duct through said water water jet device again.
4. the surplus steam reclamation system that steams still is pressed in pile tube production according to claim 1 and 2; It is characterized in that: said flash tank also comprises heat exchange outlet; This heat exchange exports an end that is connected to one first heat exchanger through heat exchanger tube, and the other end of first heat exchanger is connected to a boiler softened water tank.
5. the surplus steam reclamation system that steams still is pressed in pile tube production according to claim 1 and 2; It is characterized in that: the steam pipe between said flash distillation steam pipe and the said water water jet device is connected to an end of one second heat exchanger again, and the other end of second heat exchanger is connected to a boiler softened water tank.
6. the surplus steam reclamation system that steams still is pressed in pile tube production according to claim 1, it is characterized in that: said steam pipe also was connected to the maintenance pond before connecting vapour vapour injector.
7. the surplus steam reclamation system that steams still is pressed in pile tube production according to claim 1, it is characterized in that: the steam pipe that falls that is in said pressure steaming still end is drawn an evacuated tube, and this evacuated tube is provided with the emptying valve.
8. the surplus steam reclamation system that steams still is pressed in pile tube production according to claim 1, it is characterized in that: one second evacuated tube is drawn at the discharge outlet place that said pressure is steamed still, and this second evacuated tube connects an evacuation port, and second evacuated tube is provided with the second emptying valve door.
9. the surplus steam reclamation system that steams still is pressed in pile tube production according to claim 1, and it is characterized in that: the outlet of said buffer also is connected directly to flash tank through another drainpipe.
10. the surplus steam reclamation system that steams still is pressed in pile tube production according to claim 1; It is characterized in that: said steam supply pipe comprises a main feed header and a plurality of steam supply arm; Said main feed header is connected to each respectively through each steam supply arm and presses the air intake that steams still, and said a plurality of steam supply arm is equipped with the steam supply valve;
The said steam pipe that falls comprises fall vapour persons in charge and a plurality of arms of falling vapour, and the said person in charge of falling vapour is connected to the respectively steam ports of pressure steaming still respectively through the arm of falling vapour respectively, and said a plurality of arm of falling vapour is equipped with the door of falling the steam valve;
Said drainpipe comprises a drain header and a plurality of branch drain; The discharge outlet that said each pressure is steamed still is connected to said buffer through a branch drain respectively; The outlet of said buffer is connected to flash tank through drain header via said water water jet device; And said a plurality of branch drain is equipped with the buffer valve, and a drain header valve is set on the drain header.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202414198U CN202208057U (en) | 2011-07-11 | 2011-07-11 | Waste steam recovery system for pipe pile production still kettles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202414198U CN202208057U (en) | 2011-07-11 | 2011-07-11 | Waste steam recovery system for pipe pile production still kettles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202208057U true CN202208057U (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202414198U Withdrawn - After Issue CN202208057U (en) | 2011-07-11 | 2011-07-11 | Waste steam recovery system for pipe pile production still kettles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202208057U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241061A (en) * | 2011-07-11 | 2011-11-16 | 福建省大地管桩有限公司 | Residual steam recovering system for still kettles during production of tubular piles |
| CN114643636A (en) * | 2022-03-11 | 2022-06-21 | 广东碧品居建筑工业化有限公司 | Hot gas mutual conduction system for concrete member maintenance and control method thereof |
-
2011
- 2011-07-11 CN CN2011202414198U patent/CN202208057U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241061A (en) * | 2011-07-11 | 2011-11-16 | 福建省大地管桩有限公司 | Residual steam recovering system for still kettles during production of tubular piles |
| CN102241061B (en) * | 2011-07-11 | 2013-04-17 | 福建省大地管桩有限公司 | Residual steam recovering system for still kettles during production of tubular piles |
| CN114643636A (en) * | 2022-03-11 | 2022-06-21 | 广东碧品居建筑工业化有限公司 | Hot gas mutual conduction system for concrete member maintenance and control method thereof |
| CN114643636B (en) * | 2022-03-11 | 2023-09-22 | 广东碧品居建筑工业化有限公司 | Hot gas mutual conductance system for concrete member maintenance and control method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120502 Effective date of abandoning: 20130417 |
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| RGAV | Abandon patent right to avoid regrant |