CN205400835U - Utilize low -grade steam electric power's more than needed device - Google Patents
Utilize low -grade steam electric power's more than needed device Download PDFInfo
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- CN205400835U CN205400835U CN201620126176.6U CN201620126176U CN205400835U CN 205400835 U CN205400835 U CN 205400835U CN 201620126176 U CN201620126176 U CN 201620126176U CN 205400835 U CN205400835 U CN 205400835U
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Abstract
The utility model belongs to an utilize low -grade steam electric power's more than needed device, including 9.8MPa superheated steam pipeline, 2.5MPa saturated steam pipe way and 0.5MPa saturated steam pipe way, 9.8MPa superheated steam pipeline say with 2.5MPa saturated steam pipe through back pressure turbine and heat exchanger tube side to link to each other, 0.5MPa saturated steam pipe the import of saying links to each other with the export of transform waste heat boiler steam pocket, the export that 0.5MPa saturated steam pipe said links to each other with oxygen -eliminating device import and heat exchanger shell pass import respectively, and the heat exchanger shell pass export links to each other with the oxygen -eliminating device import through steam turbine, condenser, the power take off end of steam turbine links to each other with the generator, have reasonable in design, simple structure, under the balanced condition of the steam that does not influence entire system, effectual utilization low -grade steam more than needed, reduce the unloading of steam and subtract the advantage that warm water used.
Description
Technical field
This utility model belongs to coal Urina Hominis (processed) element, methanol appurtenances technical field, is specifically related to a kind of device utilizing low-grade steam-electric power more than needed.
Background technology
In the middle of Coal Chemical Industry produces, along with the development of technology, the advanced gas producing technology such as water-coal-slurry has very big advantage on production cost.In synthesis ammonia system, reaction mostly is exothermic reaction, if the low-grade steam of by-product can not effectively utilize in system, not only results in environmental pollution, will also result in very big energy dissipation.
In the middle of water-coal-slurry Urina Hominis (processed) element with methanol production, there is a lot of byproduct steam wherein 4.0MPa and 2.5MPa steam can be directly incorporated into the steam pipe system of its correspondence, utilize.But, the saturated vapor of also by-product 0.5MPa in the middle of production process, owing to its steam quality is relatively low, current low-quality steam is mainly used in oxygen-eliminating device and lithium bromide, the quantity of steam that oxygen-eliminating device and lithium bromide can utilize is limited, the direct emptying of unnecessary steam, it does not have effectively utilize.
In systems, urea production needs 2.5MPa saturated vapor, and steam is mainly provided by back pressure turbine, and back pressure turbine steam discharge is superheated steam, needing to carry out desuperheat with desuperheating water could supply urea plant to utilize, and the use of desuperheating water also result in very big energy dissipation.
Utility model content
The purpose of this utility model is in that to overcome defect of the prior art to provide a kind of reasonable in design, simple in construction, when not affecting the balance of steam of whole system, effective utilizes low-grade steam more than needed, reduces the emptying to steam and a kind of device utilizing low-grade steam-electric power more than needed that desuperheating water uses.
The purpose of this utility model is achieved in that and includes 9.8MPa superheat steam pipeline, 2.5MPa saturated vapor pipeline and 0.5MPa saturated vapor pipeline, described 9.8MPa superheat steam pipeline is connected with 2.5MPa saturated vapor pipeline with heat exchanger tube pass by back pressure turbine, the import of described 0.5MPa saturated vapor pipeline is connected with conversion waste heat boiler drum outlet, the outlet of 0.5MPa saturated vapor pipeline is connected with oxygen-eliminating device import and heat exchanger shell pass import respectively, steam turbine is passed through in heat exchanger shell pass outlet, condenser is connected with oxygen-eliminating device import, the clutch end of described steam turbine is connected with electromotor.The first threeway and the first valve it is sequentially provided with between described back pressure turbine and heat exchanger tube pass；Being sequentially provided with the second valve and the second threeway between 3rd end and the 2.5MPa saturated vapor pipeline of described first threeway, the 3rd end of described second threeway is provided with the desuperheating water pipeline of the 3rd valve.
This utility model has the advantage that
1, when system fluctuation, directly heat exchanger can be cut out, regulate 2.5MPa pipe network vapor (steam) temperature, flexible adjustment by attemperation water flow, do not affect the balance of steam of whole system；
2, superheated steam is of many uses, except can be used to generating, it is possible to utilize for explained hereafter in system；
3, efficiently utilize synthesis ammonia system by-product low-pressure steam, reduce emptying；
4, reduce extracted steam from turbine and adopt the desuperheating water cooling waste to energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now comparison accompanying drawing illustrates detailed description of the invention of the present utility model, and label identical in the various figures represents identical parts.For making simplified form, only schematically show the part relevant to utility model in each figure, they do not represent its practical structures as product.
As shown in Figure 1, this utility model includes 9.8MPa superheat steam pipeline 1, 2.5MPa saturated vapor pipeline 2 and 0.5MPa saturated vapor pipeline 3, described 9.8MPa superheat steam pipeline 1 is connected with 2.5MPa saturated vapor pipeline 2 with heat exchanger 5 tube side by back pressure turbine 4, the import of described 0.5MPa saturated vapor pipeline 3 is connected with conversion waste heat boiler drum outlet 6, the outlet of 0.5MPa saturated vapor pipeline 3 is connected with oxygen-eliminating device 7 import and heat exchanger 5 shell side import respectively, heat exchanger 5 shell-side outlet passes through steam turbine 8, condenser 9 is connected with oxygen-eliminating device 7 import, the clutch end of described steam turbine 8 is connected with electromotor 10.The first threeway 11 and the first valve 12 it is sequentially provided with between described back pressure turbine 4 and heat exchanger 5 tube side；Being sequentially provided with the second valve 13 and the second threeway 16 between 3rd end and the 2.5MPa saturated vapor pipeline 2 of described first threeway 11, the 3rd end of described second threeway 16 is provided with the desuperheating water pipeline 14 of the 3rd valve 15.
When using this utility model, from the pressure 2.5MPa of back pressure turbine 4, the superheated steam that temperature is 400 DEG C, after heat exchanger 5 tube side heat exchange, releases heat, and temperature is reduced to 250 DEG C, delivers to 2.5MPa steam pipe system 2, decreases the use of desuperheating water.Carrying out the saturated vapor of the pressure 0.5MPa temperature 160 DEG C of transformation into itself's waste heat boiler drum outlet 6, in heat exchanger 5 shell side, absorb the heat from superheated steam, temperature rises to 210 DEG C, it is possible to generate electricity for steam turbine 8.Can effectively utilize the high-grade heat in turbine discharge through heat exchanger 5 heat exchange, reduce energy loss.And 0.5MPa steam also is able to pass in steam turbine drive electrical generators after heating, and generating uses, it is to avoid steam evacuation.When the equipment such as steam turbine 8 or electromotor 10 break down, can pass through to close the first valve 12, opening the second valve 13 and the 3rd valve 15, make the pressure 2.5MPa by back pressure turbine 4, the superheated steam that temperature is 400 DEG C enters in 2.5MPa saturated vapor pipeline 2 after mixing with desuperheating water.
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " setting ", " installation " etc. should be interpreted broadly, for instance, it is possible to it is fixing connection, connects integratedly, it is also possible to be removably connect；It can also be the connection of two element internals；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model as the case may be.It is to be noted in this article, " first ", " second ", " the 3rd " etc. are for differentiation each other, but not represent their significance level etc..Foregoing detailed description is only for illustrating of feasibility embodiment of the present utility model; they are also not used to limit protection domain of the present utility model, and all equivalent implementations, change and transformations made without departing from this utility model skill spirit should be included within protection domain of the present utility model.
Claims (2)
- null1. the device utilizing low-grade steam-electric power more than needed，Including 9.8MPa superheat steam pipeline (1)、2.5MPa saturated vapor pipeline (2) and 0.5MPa saturated vapor pipeline (3)，It is characterized in that: described 9.8MPa superheat steam pipeline (1) is connected with 2.5MPa saturated vapor pipeline (2) with heat exchanger (5) tube side by back pressure turbine (4)，The import of described 0.5MPa saturated vapor pipeline (3) is connected with conversion waste heat boiler drum outlet (6)，The outlet of 0.5MPa saturated vapor pipeline (3) is connected with oxygen-eliminating device (7) import and heat exchanger (5) shell side import respectively，Heat exchanger (5) shell-side outlet passes through steam turbine (8)、Condenser (9) is connected with oxygen-eliminating device (7) import，The clutch end of described steam turbine (8) is connected with electromotor (10).
- 2. a kind of device utilizing low-grade steam-electric power more than needed according to claim 1, it is characterised in that: it is sequentially provided with the first threeway (11) and the first valve (12) between described back pressure turbine (4) and heat exchanger (5) tube side；Being sequentially provided with the second valve (13) and the second threeway (16) between 3rd end and 2.5MPa saturated vapor pipeline (2) of described first threeway (11), the 3rd end of described second threeway (16) is provided with the desuperheating water pipeline (14) of the 3rd valve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620126176.6U CN205400835U (en) | 2016-02-04 | 2016-02-04 | Utilize low -grade steam electric power's more than needed device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620126176.6U CN205400835U (en) | 2016-02-04 | 2016-02-04 | Utilize low -grade steam electric power's more than needed device |
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| CN205400835U true CN205400835U (en) | 2016-07-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107502387A (en) * | 2017-08-21 | 2017-12-22 | 河南心连心化肥有限公司 | The device and steam utilization method that a kind of gas making is made full use of with steam energy |
| CN108844054A (en) * | 2018-07-30 | 2018-11-20 | 河南心连心化肥有限公司 | A kind of synthesis ammonia system heat reclaim unit and heat recovery technique |
-
2016
- 2016-02-04 CN CN201620126176.6U patent/CN205400835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107502387A (en) * | 2017-08-21 | 2017-12-22 | 河南心连心化肥有限公司 | The device and steam utilization method that a kind of gas making is made full use of with steam energy |
| CN108844054A (en) * | 2018-07-30 | 2018-11-20 | 河南心连心化肥有限公司 | A kind of synthesis ammonia system heat reclaim unit and heat recovery technique |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 453731 Henan Xinxiang Economic Development Zone (Xiaoji Town) Patentee after: Henan Xinlianxin Chemical Industry Group Co., Ltd. Address before: 453731 Henan Xinxiang Economic Development Zone Xiaoji Town Henan Xinlianxin Chemical Fertilizer Co., Ltd. Patentee before: Henan XInlianxin Fertiliser Limited Company |