CN2881356Y - Pressure changed heat storage device with micro-super heat - Google Patents
Pressure changed heat storage device with micro-super heat Download PDFInfo
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- CN2881356Y CN2881356Y CN 200520009760 CN200520009760U CN2881356Y CN 2881356 Y CN2881356 Y CN 2881356Y CN 200520009760 CN200520009760 CN 200520009760 CN 200520009760 U CN200520009760 U CN 200520009760U CN 2881356 Y CN2881356 Y CN 2881356Y
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Abstract
The utility model discloses a pressure changed heat storage device with micro-super heat which belongs to the technical field of machinery construction, and particularly relates to a situation where the steam source is generated discontinuously, the purpose of the utility model is to convert the discontinuous steam thermal source into a continuous thermal source which contains a certain pressure changed heat storage device. The utility model comprises a heat storage device, a nozzle, a circulating duct, a distributing pipe and a primary steam-water separator, the outlet of the heat storage device is provided with a steam drum with a secondary steam-water separating device inside, meanwhile, the outlet of the steam drum is provided with a laval flow limit nozzle. The utility model can provide with a steam output of heat storage device with an overheating degree over 10 to 20 celsius system in which the purpose of micro-overheating output steam can be achieved, the steam can be efficiently used and connected to steam pipe network. The utility model is mainly used the situation where the waste heat boiler of steel-making converter produces steam.
Description
Technical field
The utility model belongs to the mechanical engineering technical field, relate in particular to vapour source for being interrupted the place that takes place, for example the waste heat boiler steam of steelmaking converter is interrupted, a kind of being used for becomes the intermediate steam thermal source into continuous steam source, and the steam that produces continuously has the transformation steam accumulator of 10 ℃～20 ℃ the degree of superheat.
Background technology
Converter flue formula waste heat boiler becomes saturated vapor in the waste heat boiler drum to the heat recovery in the high temperature converter gas.Because the production of steel-making is periodical operation, thermal source is to be interrupted heat production, therefore, has only by the varying pressure thermal storage apparatus and could become continuous thermal source being interrupted thermal source, is used.In case when steel mill has the waste heat boiler of converter more than two or AOD stove, vapour source can be described as continuous basically, but because the oxygen blast process is interrupted, therefore the pressure oscillation and the flowed fluctuation of steam are all bigger, directly use the problem that still has poor stability, in this system, still need the steam of waste heat boiler output to be become the steam of continous-stable by the varying pressure thermal storage apparatus for the user.
Existing variable-pressure accumulator device as shown in Figure 1, the operation principle of variable-pressure accumulator device is that it is thermophore with water, the HTHP saturated vapor that comes from drum passes through inlet tube 12 and inlet non-return valve 5, steam distribution house steward 4, steam distribution arm 3, steam jet and circulation barrier part 2 spray into storage heater 1, the heat of thermal source high steam is stored in the high pressure saturation water, flash distillation takes place after utilizing the saturation water step-down then, saturation water becomes superheated water, seethe with excitement and spontaneous evaporation immediately, produce continuous saturated vapor, saturated vapor is imported plant area's steam pipe systems by one-level crude separation device 6 by low-temp low-pressure saturated vapor outlet 13.
Usually the thermal source working media is a steam water interface, saturation temperature is about 159 ℃～252 ℃, pressure 0.5MPa～the 4.0MPa that is everlasting, if the steam that reclaims can better make full use of, the operating pressure of thermal source waste heat boiler drum must be at 1.6MPa～4.0MPa, corresponding saturation temperature is about 204 ℃～252 ℃, can remain between 0.5MPa～1.5MPa substantially by the steam behind the variable-pressure accumulator device like this and move, and corresponding saturation temperature is about 159 ℃～201 ℃.
In production reality, main problem is present in release end of heat part, i.e. steam output end:
(1) accumulation of heat vapor outlet place only establishes one-level crude separation device 6 carbonated drink separation;
(2) steam (vapor) outlet band water is serious, is in wet-steam phase substantially, has come great difficulty for input plant area steam guipure, and not only fed distance is lacked but also is greatly limited for hot user's this part steam that utilizes effectively fully;
(3) outlet steam flow control difficulty;
(4) the outlet saturated vapor is in wet-steam phase, utilizes difficulty.
Summary of the invention
The utility model purpose provides a kind of varying pressure thermal storage apparatus of new structure, solve the problem of above-mentioned existence, outside not needing under the situation of supplying heat source, provide a kind of steam (vapor) outlet degree of superheat of storage heater reach 10 ℃～more than 20 ℃, realize the little overheated purpose of outlet steam, be beneficial to effective utilization of steam and incorporate steam pipe system into.
The utility model is achieved in that a kind of with little overheated varying pressure thermal storage apparatus, the storage heater that comprises the vapour source inlet duct that is provided with HTHP and low-temp low-pressure outlet jet chimney, the steam jet and the circulating barrel of installing in the described storage heater, the one-level steam-water separator, the steam distribution arm that steam distribution house steward and two ends are connected with described steam distribution house steward with described steam jet and circulating barrel respectively, it is characterized in that: a plenum chamber that joins through pipeline is also set up in the outlet of described storage heater, in the outlet of described plenum chamber interior conduit the secondary water separator has been installed, has been provided with Laval current limliting jet pipe in the outlet of described plenum chamber.
The outlet of above-mentioned plenum chamber also is provided with heat pipe heat exchanging unit A and the heat pipe heat exchanging unit B that connects through tube connector, transfer valve group, and heat pipe heat exchanging unit A and heat pipe heat exchanging unit B and described storage heater join.
Specifically, high temperature release end of heat and the described storage heater of above-mentioned heat pipe heat exchanging unit A join, and extend in the saturation water of described storage heater; Described heat pipe heat exchanging unit A and heat pipe heat exchanging unit B by tube connector, outlet non-return valve, converge threeway and described low-temp low-pressure outlet jet chimney and join.
The heat exchanger tube of installing in above-mentioned heat pipe heat exchanging unit A and the heat pipe heat exchanging unit B adopts the heat pipe-type heat exchanger tube; The high temperature release end of heat and the low temperature heat absorbing end of described heat exchanger tube are separated through dividing plate respectively.
The control of the inlet transfer valve group of above-mentioned heat pipe heat exchanging unit A and heat pipe heat exchanging unit B is carried out switch operating by pressure and flow signal on the vapour source inlet duct of HTHP.
The vapour source inlet duct of above-mentioned HTHP and described low-temp low-pressure outlet jet chimney are connected in series by described storage heater.
The utility model is provided with a plenum chamber in the storage heater outlet, and installed the secondary water separator therein, can further isolate the water droplet in the steam, be provided with Laval current limliting jet pipe in the plenum chamber outlet simultaneously, again because the throttling action of this nozzle, to the water droplet that remain in the steam be evaporated once more, make saturated vapor become dry saturated steam, when vapour pressure sharply descends in steam delivery tube simultaneously, this flow limited nozzle will be placed restrictions on the steam flow that flows out and will be higher than a certain peak in storage heater, to prevent that sharply evaporation back water entrained by steam is too much in the storage heater, because current limliting jet pipe and common throttling and the adiabatic expansion effect of outlet valve, causing becomes the slight superheated steam with 5 ℃ of left and right sides degrees of superheat for dry saturated steam;
Under the situation of the utility model supplying heat source outside not needing, provide a kind of steam (vapor) outlet degree of superheat of storage heater reach 10 ℃～more than 20 ℃, realize the little overheated purpose of outlet steam, adopted the secondary superheater to realize, the first order is overheated to be 5 ℃ overheated to 10 ℃ that realize by the throttling of saturated vapor and adiabatic expansion, the second level is overheated to be to realize by the heat exchange of heat exchange of heat pipe efficiently by the saturated vapor sensible heat of HTHP or the sensible heat of the high pressure saturation water in the storage heater, finally make the outlet steam the degree of superheat reach 10 ℃～more than 20 ℃, reached the little overheated of steam, be beneficial to effective utilization of steam and incorporate steam pipe system into.
Description of drawings
Fig. 1 is existing storage heater structure elevation.
Fig. 2 is a storage heater structure elevation of the present utility model.
Fig. 3 is a storage heater structure side view of the present utility model.
Fig. 4 is a storage heater structure vertical view of the present utility model.
Among the figure, part 1 is a storage heater, and part 2 is steam jet and circulating barrel, part 3 is steam distribution arms, and part 4 is steam distribution house stewards, and part 5 is an inlet non-return valve, part 6 is the one-level water separator, and part 7 is an outlet non-return valve, and part 8 is a safety valve, part 9 is a Pressure gauge, and part 10 is a manhole, and part 11 is a make-up pipe, part 12 is the high-pressure saturated steam inlet tube, part 13 is outlet low-temp low-pressure saturated steam pipe, and part 14 is the secondary water separator, and part 15 is a plenum chamber, part 16 is a Laval current limliting jet pipe, part 17 is a tube connector, and part 18 is a transfer valve, and part 19 is heat pipe heat exchanging unit A, part 20 is the heat pipe heat exchanging unit B, part 21 and part 23 are the heat pipe-type heat exchanger tube, and part 22 and part 24 are dividing plate, and part 25 and part 27 are tube connector, part 26 and part 28 are outlet non-return valve, part 29 is for converging threeway, and part 30 is an inlet valve, and part 31 is for entering the storage heater steam inlet tube.
In Fig. 2, part 11 other arrows illustrate make-up water supply from here; The arrow points of part 12 tops is meant from the next HTHP saturated vapor of drum; The arrow points of part 13 tops is removed pipe network low-temp low-pressure superheated steam.
In Fig. 4, the arrow points of part 12 belows is meant from the next HTHP saturated vapor of drum; The arrow points of part 13 belows is removed pipe network low-temp low-pressure superheated steam.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described:
Storage heater 1 setting pressure table 9, make-up pipe 11 and manhole 10, interior steam jet and the circulating barrel 2 of installing, one-level water separator 6, steam distribution arm 3 two ends are connected with circulating barrel 2 with steam distribution house steward 4 and steam jet respectively, high-pressure saturated steam inlet tube 12 is connected with heat pipe heat exchanging unit B 20 by inlet non-return valve 5, plenum chamber 15 joins by pipeline 30 and storage heater 1, safety valve 8 is installed on the plenum chamber 15, Laval current limliting jet pipe 16 is installed in the plenum chamber 15, the secondary water separator 14 of storage heater is installed in the outlet of plenum chamber 15 interior conduits 30, is connected by tube connector 17 between plenum chamber 15 and the transfer valve 18; Heat pipe heat exchanging unit A 19 is connected with storage heater 1 with B 20, heat pipe-type heat exchanger tube 21,23 is installed in respectively in heat pipe heat exchanging unit A 19 and the B 20, by dividing plate 22,24 high temperature release end of heat and low temperature heat absorbing end are separated, join by tube connector 25,27 and outlet non-return valve 27,28, send pipe 13 with steam and join by converging threeway 29.
By the next HTHP saturated vapor 12 of waste heat boiler drum, after at first carrying out heat exchange with the slight overheated steam that exports by heat exchange unit B 20, by steam distribution house steward 4 and the arm 3 in the storage heater 1, water in 2 pairs of storage heaters of steam jet and circulating barrel 1 heats, the effect of circulating barrel is when steam sprays in the water by nozzle continuously, make water and the upwards back suitable for reading diffusion of outflow tube of vapour in the tube, at this moment descend because of flowing out the back local pressure mixing of tube internal upper part carbonated drink, the outer water of an end opening is flowed in the tube, so continuous circulative convection, making in the container up and down, the water temperature at each position is tending towards approaching, pressure in the container raises gradually, steam heats water in storage heater 1 and condenses into water, makes the heat enthalpy value of 1 li water of storage heater be elevated to and introduce the corresponding saturation water enthalpy of high-pressure steam pressure.When the hot user in the external world uses vapour, the pressure on storage heater 1 top begins to descend, steam is with regard to start vaporizer, the wet saturated steam of evaporation is by one-level water separator 6, behind the secondary water separator 14, enter plenum chamber 15, carry out throttling adiabatic expansion process and make water-drop evaporation in the wet saturated steam by being arranged on Laval current limliting jet pipes 16 in the plenum chamber 15 then, reach dry saturated steam and have the slight degree of superheat (degree of superheat more than 5 ℃ is arranged approximately), it also has when the pressure of steam outlet pipe sharply descends, the restriction saturated vapor is by outflow excessive in the storage heater 1, priming takes place when preventing storage heater 1 violent evaporation simultaneously, and water droplet enters jet chimney 13.
In order to make outlet steam keep the higher and stable degree of superheat, just must guarantee that outlet has the vapour source of high enough temp that dry saturated steam is heated, be provided with heat exchange unit A 19 and heat exchange unit B 20 in plenum chamber 15 exits, transfer valve group by the heat exchanger entrance place is controlled the flow direction that is heated dry saturated steam, heat exchange unit A20 fills at storage heater to come into operation when vapour high temperature and high pressure steam source and steam user use system asynchronous, the high temperature and high pressure steam source that promptly enters the mouth stops (after stopping oxygen blast as converter, converter seat number is less than two when following), and the steam user is still using steam, for the degree of superheat that guarantees to export steam reaches 10 ℃～the degree of superheat more than 20 ℃, heat being heated dry saturated steam with regard to the sensible heat that must rely on the high-temperature high pressure water in the storage heater, the temperature end of its heat pipe heat exchanging pipe communicates with storage heater, and can guarantee to export steam has 10 ℃～the degree of superheat more than 20 ℃.Heat exchange unit B 20 fills at storage heater 1 to come into operation when vapour high temperature and high pressure steam source uses system identical with the steam user, vapour source also must be continuous in addition, many (more than three and three) are promptly arranged when the converter waste heat boiler exists, vapour source can guarantee to be continuous output basically fully, the outlet dry saturated steam carries out the sensible heat exchange by the saturated vapor of the HTHP of heat exchange unit B 20 and inlet, the temperature end of instant heating heat exchange tube and inlet steam pipe join, release end of heat joins with the outlet steam pipe, make the degree of superheat of outlet steam can reach 10 ℃～more than 20 ℃, and temperature stabilization.
The utility model mainly is suitable for pneumatic steelmaking apparatus for vapour-cooling and AOD stainless steel converter apparatus for vapour-cooling occasion, also can be used to have periodically produce the occasion that afterheat steam reclaims.The steam pressure of special vapour source and pressure differential with the vapour load preferably have the difference more than the 1.0MPa.
The utility model can be used the occasion of one and one above steelmaking converter.The connected mode of storage heater 1 turnover steam is a series system.
Claims (6)
1, a kind of with little overheated varying pressure thermal storage apparatus, the storage heater (1) that comprises the vapour source inlet duct (12) that is provided with HTHP and low-temp low-pressure outlet jet chimney (13), the steam jet and the circulating barrel (2) of installing in the described storage heater (1), one-level steam-water separator (6), the steam distribution arm (3) that steam distribution house steward (4) and two ends are connected with described steam distribution house steward (4) with described steam jet and circulating barrel (2) respectively, it is characterized in that: a plenum chamber (15) that joins through pipeline (30) is also set up in the outlet of described storage heater (1), in the outlet of described plenum chamber (15) interior conduit (30) secondary water separator (14) has been installed, has been provided with Laval current limliting jet pipe (16) in the outlet of described plenum chamber (15).
2, as claimed in claim 1 with little overheated varying pressure thermal storage apparatus, it is characterized in that: the outlet of described plenum chamber (15) also is provided with heat pipe heat exchanging unit A (19) and the heat pipe heat exchanging unit B (20) that connects through tube connector (17), transfer valve group (18), and heat pipe heat exchanging unit A (19) and heat pipe heat exchanging unit B (20) and described storage heater (1) join.
3, as claimed in claim 2 with little overheated varying pressure thermal storage apparatus, it is characterized in that: the high temperature release end of heat of described heat pipe heat exchanging unit A (19) and described storage heater (1) join, and extend in the saturation water of described storage heater (1); Described heat pipe heat exchanging unit A (19) and heat pipe heat exchanging unit B (20) by tube connector (25,27), outlet non-return valve (26,28), converge threeway (29) and join with described low-temp low-pressure outlet jet chimney (13).
4, as claim 2 or 3 described with little overheated varying pressure thermal storage apparatus, it is characterized in that: the heat exchanger tube of installing in described heat pipe heat exchanging unit A (19) and the heat pipe heat exchanging unit B (20) (21,23) adopts the heat pipe-type heat exchanger tube; The high temperature release end of heat of described heat exchanger tube (21,23) and low temperature heat absorbing end are separated through dividing plate (22,24) respectively.
5, as claimed in claim 2 with little overheated varying pressure thermal storage apparatus, it is characterized in that: the control of the inlet transfer valve group (18) of described heat pipe heat exchanging unit A (19) and heat pipe heat exchanging unit B (20) is carried out switch operating by pressure and the flow signal on the vapour source inlet duct (12) of HTHP.
6, as claimed in claim 1 with little overheated varying pressure thermal storage apparatus, it is characterized in that: the vapour source inlet duct (12) of described HTHP and described low-temp low-pressure outlet jet chimney (13) are connected in series by described storage heater (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009760 CN2881356Y (en) | 2005-08-09 | 2005-08-09 | Pressure changed heat storage device with micro-super heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009760 CN2881356Y (en) | 2005-08-09 | 2005-08-09 | Pressure changed heat storage device with micro-super heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881356Y true CN2881356Y (en) | 2007-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520009760 Expired - Lifetime CN2881356Y (en) | 2005-08-09 | 2005-08-09 | Pressure changed heat storage device with micro-super heat |
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| Country | Link |
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| CN (1) | CN2881356Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003419A (en) * | 2010-10-21 | 2011-04-06 | 重庆智得热工工业有限公司 | Steam ejector composite set |
| CN102374810A (en) * | 2010-08-11 | 2012-03-14 | 北京明诚技术开发有限公司 | Low-water-level horizontal steam distributing pipe bottom-heating steam-jetting heat storage device |
| CN105112604A (en) * | 2015-07-17 | 2015-12-02 | 田景波 | Steelmaking converter evaporation cooling dynamic energy recovery system and technological process |
| CN113883718A (en) * | 2021-10-15 | 2022-01-04 | 中船九江锅炉有限公司 | Double-cavity boiler for ship |
| CN116066813A (en) * | 2022-11-30 | 2023-05-05 | 无锡市中岳石化设备有限公司 | Superheated steam energy storage device |
-
2005
- 2005-08-09 CN CN 200520009760 patent/CN2881356Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374810A (en) * | 2010-08-11 | 2012-03-14 | 北京明诚技术开发有限公司 | Low-water-level horizontal steam distributing pipe bottom-heating steam-jetting heat storage device |
| CN102374810B (en) * | 2010-08-11 | 2015-01-21 | 北京明诚技术开发有限公司 | Low-water-level horizontal steam distributing pipe bottom-heating steam-jetting heat storage device |
| CN102003419A (en) * | 2010-10-21 | 2011-04-06 | 重庆智得热工工业有限公司 | Steam ejector composite set |
| CN105112604A (en) * | 2015-07-17 | 2015-12-02 | 田景波 | Steelmaking converter evaporation cooling dynamic energy recovery system and technological process |
| CN113883718A (en) * | 2021-10-15 | 2022-01-04 | 中船九江锅炉有限公司 | Double-cavity boiler for ship |
| CN116066813A (en) * | 2022-11-30 | 2023-05-05 | 无锡市中岳石化设备有限公司 | Superheated steam energy storage device |
| CN116066813B (en) * | 2022-11-30 | 2024-01-05 | 无锡市中岳石化设备有限公司 | Superheated steam energy storage device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150809 Granted publication date: 20070321 |
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| EXPY | Termination of patent right or utility model |