CN207112774U - A kind of boiler steam-supplying system - Google Patents
A kind of boiler steam-supplying system Download PDFInfo
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- CN207112774U CN207112774U CN201720915715.9U CN201720915715U CN207112774U CN 207112774 U CN207112774 U CN 207112774U CN 201720915715 U CN201720915715 U CN 201720915715U CN 207112774 U CN207112774 U CN 207112774U
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- steam
- boiler
- boiler feed
- pressure
- steam turbine
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Abstract
The utility model embodiment discloses a kind of boiler steam-supplying system, including：Steam turbine unit, boiler feed, reducer unit and stove drum, steam turbine unit is connected with boiler feed, low-pressure steam is provided for boiler feed, stove drum is connected by reducer unit with boiler feed, stove drum produces high steam, and depressurize to form low-pressure steam by reducer unit, there is provided to boiler feed.Pass through the technical solution of the utility model, the pressure stability of the low-pressure steam of steam turbine unit output, and then increase the deoxidation effect of boiler feed, reduce the oxygen content of product water, harm caused by avoiding exceeded oxygenated water, steam turbine unit can make full use of the heat energy of steam, the energy is not wasted.It so can start back-up system as steam back-up system by the use of steam turbine unit as the induction system of low-pressure steam, stove drum when steam turbine unit occurs abnormal conditions, ensure that boiler feed can continue normal work.
Description
Technical field
The utility model belongs to industrial production technology field, more particularly to a kind of boiler steam-supplying system.
Background technology
During boiler feedwater handling process, deoxygenation is a very crucial link.Oxygen is the feed water system of boiler
Main corrosion material, the oxygen in water supply system should be removed rapidly, and otherwise it can corrode water supply system and the portion of boiler
Part, corrosive substance iron oxide can enter in boiler, deposit or be attached on boiler tube wall and heating surface, form indissoluble and conduct heat
Bad iron dirt, the iron dirt of corrosion can cause inner-walls of duct appearance point to cheat, resistance coefficient increase.When corrosive pipeline is serious, even
Pipeline explosion accident can occur.Therefore at present in art production process, it is necessary to which boiler feed carries out deoxygenation processing to boiler.
But existing boiler feed is that boiler bubble and vapour are used by oneself after being depressurized from the decompressor set with vapour source, this
For sample due to sending steam load change outside, it is larger to give steam pressure and the temperature change of oxygen-eliminating device after decompression, causes oxygen-eliminating device
Deoxidation effect is bad, the exceeded situation of product water oxygen content often occurs, and so safe operation to downstream boiler system causes
Hidden danger.
Utility model content
In view of the above problems, the utility model proposes one kind to overcome above mentioned problem or to solve at least in part
State the boiler steam-supplying system of problem.
According to the one side of the utility model embodiment, there is provided a kind of boiler steam-supplying system, including：Steam turbine unit,
Boiler feed, reducer unit and stove drum, the steam turbine unit are connected with the boiler feed, are the boiler deoxidizing method
Device provides low-pressure steam, and the stove drum is connected by the reducer unit with the boiler feed, and the stove drum produces
High steam, and depressurize to form low-pressure steam by the reducer unit, there is provided to the boiler feed.
Further, the steam turbine unit includes：Steam turbine, flowmeter and two heating coils are fallen to drench, and the steam turbine is set
Put and be connected in the upstream of the boiler feed, the steam turbine with the flowmeter, described two heating coils fall drench respectively with institute
State flowmeter parallel connection.
Further, check-valves is provided between described two heating coils fall and drenched, the check-valves is connected with the flowmeter.
Further, stop valve, the stop valve and the check-valves string are additionally provided between described two heating coils fall and drenched
Connection.
Further, variable-diameter structure, the variable-diameter structure and the cut-off are additionally provided between described two heating coils fall and drenched
Valve is connected.
Further, the reducer unit includes：At least one pressure-reducing valve, the pressure-reducing valve are connected with the stove drum.
Further, the reducer unit also includes by-passing valve, and the by-passing valve is in parallel with least one pressure-reducing valve.
Further, pressure gauge and thermometer are provided with the pipeline of the boiler feed.
The boiler steam-supplying system that the utility model embodiment provides, has the advantages that：
By the technical solution of the utility model, stove drum and reducer unit, steam turbine list are replaced using steam turbine unit
The pressure stability of the low-pressure steam of member output, and then increase the deoxidation effect of boiler feed, the oxygen content of product water is reduced,
The stability of boiler feed operation is improved, harm caused by exceeded oxygenated water is avoided, in addition, steam turbine unit can fill
Divide the heat energy using steam, the energy is not wasted, reach the effect for saving the energy.
The utility model increases steam turbine unit on the basis of original stove drum steam-supplying system, utilizes steam turbine unit
As the induction system of low-pressure steam, stove drum so can occur disabling, press as steam back-up system in steam turbine unit
During the abnormal conditions such as variation is big, start stove drum and reducer unit carries out the conveying of low-pressure steam, and then ensure boiler deoxidizing method
Device can continue normal work.
Brief description of the drawings
The accompanying drawing of a part for constitution instruction describes embodiment of the present utility model, and is used for together with description
Explain principle of the present utility model.
Referring to the drawings, according to following detailed description, the utility model can be more clearly understood, wherein：
Fig. 1 is the structural representation of the boiler steam-supplying system of the utility model embodiment.
Description of reference numerals：
1 steam turbine unit, 11 steam turbines, 12 flowmeters, 13 heating coils fall to drench, 14 check-valves, 15 stop valves, 16 reducing knots
Structure,
2 boiler feeds, 21 pressure gauges, 22 thermometers,
3 reducer units, 31 pressure-reducing valves, 32 by-passing valves, 4 stove drums.
Embodiment
Various exemplary embodiments of the present utility model are described in detail now with reference to accompanying drawing.It should be noted that：It is unless another
Illustrate outside, the positioned opposite of the part otherwise illustrated in these embodiments, numerical expression and unlimited this reality of system of numerical value
With new scope.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not according to reality
Proportionate relationship draw.
The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
Fig. 1 is the structural representation of the boiler steam-supplying system of the utility model embodiment.
As shown in figure 1, boiler steam-supplying system of the present utility model, including：Steam turbine unit 1, boiler feed 2, decompression
Valve group 3 and stove drum 4, steam turbine unit 1 are connected with boiler feed 2, and low-pressure steam, stove drum 4 are provided for boiler feed 2
Be connected by reducer unit 3 with boiler feed 2, stove drum 4 produce high steam, and by reducer unit 3 decompression formed it is low
Press steam, there is provided to boiler feed 2.
In the above-mentioned technical solutions, steam turbine unit 1 produces low-pressure steam by way of turbine, and by the low-pressure steam
Boiler feed 2 is conveyed to, so that the boiler feed 2 carries out deoxidation use, stove drum 4 is used as steam back-up system, in vapour
When the abnormal conditions such as disable, pressure oscillation is big occurs in turbine unit 1, start stove drum 4 and reducer unit 3 carries out low-pressure steam
Conveying, and then ensure that boiler feed 2 can continue normal work.
Because the steam pressure variation that boiler feed 2 is given after the decompression of reducer unit 3 is larger, make boiler feed
2 deoxidation effect is bad, therefore in order to avoid such case, stove drum 4 and reducer unit 3, vapour are replaced using steam turbine unit 1
The pressure stability for the low-pressure steam that turbine unit 1 exports, and then increase the deoxidation effect of boiler feed 2, reduce product water
Oxygen content, improve the stability of the operation of boiler feed 2, harm caused by exceeded oxygenated water avoided, in addition, steam turbine
Unit 1 can make full use of the heat energy of steam, the energy is not wasted, and reach the effect for saving the energy.
Wherein, boiler feed 2 can set one or more, such as set two boiler feeds 2, and one is 35T/
H boiler feed, a boiler feed for 75T/H, it is that the two boilers remove using steam turbine unit 1 or stove drum 4
Oxygen device 2 conveys low-pressure steam.
Stove drum 4 can also set multiple, such as three stove drums 4 are provided with Fig. 1, and the setting quantity of stove drum 4 can be with
Voluntarily set according to being actually needed.
Steam turbine unit 1 includes：Steam turbine 11, flowmeter 12 and two heating coils fall to drench 13, and steam turbine 11 is arranged on boiler
The upstream of oxygen-eliminating device 2, steam turbine 11 are connected with flowmeter 12, and two heating coils fall to drench 13 in parallel with flowmeter 12 respectively.
Wherein, steam turbine 11 is C1304 band pump turbine machines, produces low-pressure steam using steam turbine 11, can reduce
The unreasonable power consumption of pressure valve group 3, save the energy.
In the above-mentioned technical solutions, after steam turbine 11 produces low-pressure steam, flowmeter 12 is conveyed to, flowmeter 12 is to conveying
Flow to the low-pressure steam of boiler feed 2 is detected and counted, and two heating coils fall to drench 13 and come into operation initial stage for system
Across valve group heating coil.
Check-valves 14 is provided between two heating coils fall and drench 13, check-valves 14 is connected with flowmeter 12.Check-valves 14 is single
To valve, can effectively it prevent after steam turbine unit 1 disables, the steam as caused by stove drum 4 pours in down a chimney into steam turbine unit 1, production
The situation of raw steam leakage.Check-valves 14 is arranged on after flowmeter 12, close to the side of boiler feed 2.
Stop valve 15 is additionally provided between two heating coils fall and drench 13, stop valve 15 is connected with check-valves 14.When user is not required to
When carrying out low-pressure steam conveying, the stop valve 15 is closed, blocks steam circulation, when user needs low-pressure steam, open
The stop valve 15, carry out low-pressure steam conveying.
Variable-diameter structure 16 is additionally provided between two heating coils fall and drench 13, variable-diameter structure 16 is connected with stop valve 15.Work as steamer
During the diameter difference of the conveyance conduit of machine unit 1 and the conveyance conduit of boiler feed 2, using variable-diameter structure 16 by two pipelines
Connect.
Reducer unit 3 includes：At least one pressure-reducing valve 31, pressure-reducing valve 31 are connected with stove drum 4.Such as there are two pressure-reducing valves
31, it is a pressure-reducing valve 31 and secondary decompression valve 31 respectively, high steam caused by stove drum 4, is entered by a pressure-reducing valve 31
Capable first decompression, is depressurized again by secondary decompression valve 31, and high steam caused by boiler is become to meet user's need
Boiler feed 2 is conveyed to after the low-pressure steam asked to use.Wherein, pressure-reducing valve 31 is subtracted inlet pressure by opening the throttling of part
To the outlet pressure of a certain needs, and outlet pressure is set to keep relative stability.
Reducer unit 3 also includes by-passing valve 32, and by-passing valve 32 is in parallel with least one pressure-reducing valve 31.So work as reducer unit
3, which break down, to be avoided because reducer unit 3 occurs in use, can also be opened whole path using by-passing valve 32
Failure and caused infringement.
Pressure gauge 21 and thermometer 22 are provided with the pipeline of boiler feed 2.The low pressure that conveying can be monitored in real time is steamed
The temperature and pressure of vapour, so that user observes at any time, and equipment is adjusted correspondingly according to the temperature and pressure of monitoring.
By above-mentioned technical proposal of the present utility model, stove drum and reducer unit, steamer are replaced using steam turbine unit
The pressure stability of the low-pressure steam of machine unit output, and then increase the deoxidation effect of boiler feed, reduce the oxygen of product water
Content, the stability of boiler feed operation is improved, harm caused by exceeded oxygenated water is avoided, in addition, steam turbine unit
The heat energy of steam can be made full use of, the energy is not wasted, reaches the effect for saving the energy.
The utility model increases steam turbine unit on the basis of original stove drum steam-supplying system, utilizes steam turbine unit
As the induction system of low-pressure steam, stove drum so can occur disabling, press as steam back-up system in steam turbine unit
During the abnormal conditions such as variation is big, start stove drum and reducer unit carries out the conveying of low-pressure steam, and then ensure boiler deoxidizing method
Device can continue normal work.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and its
The difference of its embodiment, same or analogous part cross-reference between each embodiment.
Description of the present utility model provides for the sake of example and description, and is not exhaustively or by originally
Utility model is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.
Selection and description embodiment are to more preferably illustrate principle and practical application of the present utility model, and make the common skill of this area
Art personnel it will be appreciated that the utility model so as to designing the various embodiments with various modifications suitable for special-purpose.
Claims (8)
- A kind of 1. boiler steam-supplying system, it is characterised in that including：Steam turbine unit (1), boiler feed (2), reducer unit (3) it is connected with stove drum (4), the steam turbine unit (1) with the boiler feed (2), is carried for the boiler feed (2) For low-pressure steam, the stove drum (4) is connected by the reducer unit (3) with the boiler feed (2), the stove drum (4) high steam is produced, and low-pressure steam is formed by the reducer unit (3) decompression, there is provided to the boiler feed (2)。
- 2. boiler steam-supplying system according to claim 1, it is characterised in that the steam turbine unit (1) includes：Steam turbine (11), flowmeter (12) and two heating coils fall to drench (13), and the steam turbine (11) is arranged on the upper of the boiler feed (2) Trip, the steam turbine (11) is connected with the flowmeter (12), described two heating coils leaching (13) respectively with the flowmeter (12) it is in parallel.
- 3. boiler steam-supplying system according to claim 2, it is characterised in that set between described two heating coils fall to drench (13) There is check-valves (14), the check-valves (14) is connected with the flowmeter (12).
- 4. boiler steam-supplying system according to claim 3, it is characterised in that between described two heating coils fall to drench (13) also Provided with stop valve (15), the stop valve (15) is connected with the check-valves (14).
- 5. boiler steam-supplying system according to claim 4, it is characterised in that between described two heating coils fall to drench (13) also Provided with variable-diameter structure (16), the variable-diameter structure (16) is connected with the stop valve (15).
- 6. boiler steam-supplying system according to claim 1, it is characterised in that the reducer unit (3) includes：It is at least one Pressure-reducing valve (31), the pressure-reducing valve (31) are connected with the stove drum (4).
- 7. boiler steam-supplying system according to claim 6, it is characterised in that the reducer unit (3) also includes by-passing valve (32), the by-passing valve (32) is in parallel with least one pressure-reducing valve (31).
- 8. boiler steam-supplying system according to claim 1, it is characterised in that on the pipeline of the boiler feed (2) Provided with pressure gauge (21) and thermometer (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720915715.9U CN207112774U (en) | 2017-07-26 | 2017-07-26 | A kind of boiler steam-supplying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720915715.9U CN207112774U (en) | 2017-07-26 | 2017-07-26 | A kind of boiler steam-supplying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207112774U true CN207112774U (en) | 2018-03-16 |
Family
ID=61573816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720915715.9U Expired - Fee Related CN207112774U (en) | 2017-07-26 | 2017-07-26 | A kind of boiler steam-supplying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207112774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631343A (en) * | 2020-12-23 | 2021-04-09 | 浙江浙能绍兴滨海热电有限责任公司 | Method for controlling water level by parallelly operating multiple deaerators in main pipe system |
-
2017
- 2017-07-26 CN CN201720915715.9U patent/CN207112774U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631343A (en) * | 2020-12-23 | 2021-04-09 | 浙江浙能绍兴滨海热电有限责任公司 | Method for controlling water level by parallelly operating multiple deaerators in main pipe system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20190726 |
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| CF01 | Termination of patent right due to non-payment of annual fee |