CN208846403U - Adjacent machine auxiliary steam based on furnace water circulation starts heating system - Google Patents
Adjacent machine auxiliary steam based on furnace water circulation starts heating system Download PDFInfo
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- CN208846403U CN208846403U CN201821454788.3U CN201821454788U CN208846403U CN 208846403 U CN208846403 U CN 208846403U CN 201821454788 U CN201821454788 U CN 201821454788U CN 208846403 U CN208846403 U CN 208846403U
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Abstract
A kind of adjacent machine auxiliary steam starting heating system based on furnace water circulation, including steam turbine, the machine high-pressure heater, separator, oxygen-eliminating device, boiler water circulating pump, preposition feed pump, water-cooling wall, economizer and condenser hydrophobic development unit, steam turbine is connect with the input terminal of the machine high-pressure heater by two sections of bleed steam pipeworks, preposition feed pump is connected between oxygen-eliminating device and high pressure electric heater, separator, boiler water circulating pump, economizer, water-cooling wall circuits sequentially connection, boiler water circulating pump opens machine circulating-heating pipe by the machine and is connected to the machine high-pressure heater, the output end of the machine high-pressure heater is connect with economizer, the input terminal of the machine high-pressure heater is connect with the output end of the auxiliary vapour header of adjacent machine by air vent pipework, air vent pipework is equipped with pressure-regulating valve, the output end of the machine high-pressure heater is dredged by drain valve and condenser The connection of water flash vessel.The utility model is able to solve, problem that energy loss big larger to the operating pressure requirement of adjacent machine in the prior art.
Description
Technical field
The utility model relates to technical field of generators, more particularly to a kind of adjacent machine auxiliary steam based on furnace water circulation
Start heating system.
Background technique
Super (super-) critical direct current cooker is higher to the quality requirements of carbonated drink, lights a fire or stops transport the long period (general super for the first time
Spend 150 hours) unit need on startup to boiler body water system heat-transfer surface carry out cold and hot state cleaning, it is therefore an objective to will sink
The impurity such as the oxide skin that product is adhered on water supply piping system and heat-transfer surface clean up, and guarantee that boiler heating surface inner surface is clear
Clean, this cleaning system is completed by boiler body activation system.Cleaning boiler has certain requirement to water temperature, especially works as pot
When furnace carries out hot cleaning, boiler ignition start is needed to heat ejected wash water, since the process duration is longer, need to expended a large amount of
Fuel oil and fire coal.
In order to realize the heating of ejected wash water, this is heated using certain section of steam extraction of adjacent machine when traditional adjacent machine heating technique is general
Certain high-pressure heater of machine, so as to improve the feed temperature for entering boiler.But the adjacent machine heating technique of tradition is in actual production
Still there are many insufficient in operation: firstly, water supply is disposably heated to 200 DEG C by 80 DEG C in the machine high-pressure heater, to heating
The traffic requirement of steam extraction is larger, larger to the operating pressure requirement of adjacent machine, causes relatively difficult with the engagement process of adjacent machine；Its
Secondary, the water supply after heating by outlet direct after boiler or drains into condenser, and most heat is pulled away waste, energy loss
It is very big.
Utility model content
The purpose of this utility model is that propose that a kind of adjacent machine auxiliary steam based on furnace water circulation starts heating system, with
Solve the problems, such as in the prior art to require the operating pressure of adjacent machine that larger, energy loss is big.
It is a kind of based on furnace water circulation adjacent machine auxiliary steam start heating system, including steam turbine, the machine high-pressure heater,
Separator, oxygen-eliminating device further include boiler water circulating pump, preposition feed pump, water-cooling wall, economizer and condenser hydrophobic development unit, institute
It states steam turbine and is connect with the input terminal of the machine high-pressure heater by two sections of bleed steam pipeworks, the preposition feed pump is connected to
Between the oxygen-eliminating device and the input terminal of the machine high pressure electric heater, the separator, the boiler water circulating pump, province's coal
Device, the water-cooling wall circuit sequentially connection, and the boiler water circulating pump opens machine circulating-heating pipe by the machine and is connected to described the machine
The output end of the input terminal of high-pressure heater, the machine high-pressure heater is connect with the economizer, and the machine high pressure adds
The input terminal of hot device is connect with the output end of the auxiliary vapour header of adjacent machine by air vent pipework, the auxiliary vapour header of the adjacent machine it is auxiliary
Steam is helped to be transferred to the machine high-pressure heater by the air vent pipework, the air vent pipework is adjusted equipped with pressure
The output end of valve, the machine high-pressure heater is connect by drain valve with the condenser hydrophobic development unit.
According to the utility model proposes based on furnace water circulation adjacent machine auxiliary steam start heating system, in boiler thermal-state
It, can be by the auxiliary vapour header of the boiler circulation pump of the machine, the machine high-pressure heater and adjacent machine cyclically, constantly when cleaning
Heating furnace water reduces adjacent machine due to the common loop heat effect of the auxiliary vapour header of the boiler circulation pump and adjacent machine of the machine
Operating pressure, air vent pipework be equipped with pressure-regulating valve, adjacent machine steam pressure can be adjusted flexibly, it is locally initiating to adapt to
When water supply water outlet temperature requirements so that becoming convenient, flexibly with the engagement process of adjacent machine, in addition, by the way that preposition water supply is arranged
Pump carries out water supply, and setting separator and condenser hydrophobic development unit are drained, and achieve the effect that cycling use of water, so that clearly
During washing, a small amount of moisturizing/drain discharges need to be only maintained when water quality is unqualified, greatly reduces both energy loss.
In addition, starting heating system according to the adjacent machine auxiliary steam provided by the utility model based on furnace water circulation, may be used also
To have following additional technical characteristic:
Further, the pressure-regulating valve is electrodynamic type pressure-regulating valve door.
Further, the front-end and back-end of the pressure-regulating valve are respectively equipped with a shut-off valve.
Further, described the machine opens machine circulating-heating pipe equipped with the first valve.
Further, two sections of bleed steam pipeworks are equipped with the second valve.
Further, third valve is equipped between the boiler water circulating pump and the economizer.
Further, the steam turbine is condensing turbine.
Further, the steam turbine is the condensing turbine of 660MW.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the structure of the adjacent machine auxiliary steam starting heating system based on furnace water circulation of an embodiment of the present invention
Schematic diagram.
Specific embodiment
It is practical to this with reference to the accompanying drawing to keep the purpose of this utility model, feature and advantage more obvious and easy to understand
Novel specific embodiment is described in detail.Several embodiments of the utility model are given in attached drawing.But this is practical
It is novel to realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these implementations
The purpose of example is to keep the disclosure to the utility model more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixedly arranged on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side ", "upper", "lower" and similar statement for illustrative purposes only, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.Term " and or " used herein includes one or more relevant listed items
Any and all combinations.
Referring to Fig. 1, the adjacent machine auxiliary steam starting based on furnace water circulation that an embodiment of the utility model proposes adds
Hot systems, including steam turbine 11, the machine high-pressure heater 12, separator 13, oxygen-eliminating device 14, boiler water circulating pump 15, preposition water supply
Pump 16, water-cooling wall 17, economizer 18 and condenser hydrophobic development unit 19.
Steam turbine 11 can be condensing turbine, and in the present embodiment, the specially described steam turbine is the condensing-type of 660MW
Steam turbine.
The steam turbine 11 is connect with the input terminal of the machine high-pressure heater 12 by two sections of bleed steam pipeworks 20, described
Preposition feed pump 16 is connected between the oxygen-eliminating device 14 and the input terminal of the machine high pressure electric heater 12, the separator
13, the boiler water circulating pump 15, the economizer 18, the water-cooling wall 17 circuit sequentially connection, and the boiler water circulating pump 15 is logical
It crosses the machine and opens the input terminal that machine circulating-heating pipe 21 is connected to the machine high-pressure heater 12, the machine high-pressure heater 12
Output end connect with the economizer 18, the auxiliary vapour header 200 of the input terminal of the machine high-pressure heater 12 and adjacent machine
Output end is connected by air vent pipework 22, and the auxiliary steam of the auxiliary vapour header 200 of neighbour's machine passes through the air vent pipework
22 are transferred to the machine high-pressure heater 12, and the air vent pipework 22 is equipped with pressure-regulating valve 23, pressure-regulating valve 23
For adjusting water supply leaving water temperature demand when adjacent machine vapour pressure adapts to locally initiating with power.The pressure-regulating valve 23 can be electricity
Mobile pressure adjusts valve.When it is implemented, a shut-off valve, institute can be respectively set in the front-end and back-end of pressure-regulating valve 23
Shut-off valve is stated to enable really for the steam in the aux. pressure adjustment cutting pipeline of valve 23 or when pressure-regulating valve 23 needs repairing
Protect maintenance Environmental security.The output end of the machine high-pressure heater 12 passes through drain valve 24 and the condenser hydrophobic development unit
19 connections.
In the present embodiment, described the machine opens machine circulating-heating pipe 21 equipped with the first valve 25.Two sections of bleed steam pipeworks
20 are equipped with the second valve 26.Third valve 27 is equipped between the boiler water circulating pump 15 and the economizer 18.
The working principle of the system are as follows: the circulatory system is filled into water after cold conditions cleaning, opens 15 band of boiler water circulating pump to volume
Determine circular flow, opens preposition feed pump 16 and be used as moisturizing spare, open pressure-regulating valve 23, make the auxiliary vapour header 200 of adjacent machine
Auxiliary vapour be transmitted to the machine high-pressure heater 12, into vapour heat water supply, open drain valve 24 it is hydrophobic to condenser hydrophobic development unit
19, auxiliary steam flow amount is controlled in the process and height adds to water outlet temperature, passes through separator 13 and preposition feed pump when water quality is unqualified
16 carry out draining and moisturizing, and enclosed heating is maintained after water quality is qualified, until burner hearth forms ignition of the boiler after " hot stove, hot wind " environment,
Terminate to heating.
Start heating system according to the adjacent machine auxiliary steam based on furnace water circulation that the present embodiment proposes, it is clear in boiler thermal-state
When washing, it can cyclically, constantly be added by the auxiliary vapour header of the boiler circulation pump of the machine, the machine high-pressure heater and adjacent machine
Hot stove water reduces adjacent machine due to the common loop heat effect of the auxiliary vapour header of the boiler circulation pump and adjacent machine of the machine
Operating pressure, air vent pipework are equipped with pressure-regulating valve, adjacent machine steam pressure can be adjusted flexibly, when adapting to locally initiating
The temperature requirements of water supply water outlet, so that the engagement process with adjacent machine becomes convenient, flexible, in addition, by the way that preposition feed pump is arranged
Water supply is carried out, and setting separator and condenser hydrophobic development unit are drained, and achieve the effect that cycling use of water, so that cleaning
In the process, a small amount of moisturizing/drain discharges need to be only maintained when water quality is unqualified, greatly reduce both energy loss.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (8)
1. it is a kind of based on furnace water circulation adjacent machine auxiliary steam start heating system, including steam turbine, the machine high-pressure heater, point
From device, oxygen-eliminating device, which is characterized in that further include that boiler water circulating pump, preposition feed pump, water-cooling wall, economizer and condenser are hydrophobic
Flash vessel, the steam turbine are connect with the input terminal of the machine high-pressure heater by two sections of bleed steam pipeworks, described preposition to give
Water pump is connected between the oxygen-eliminating device and the input terminal of the machine high pressure electric heater, the separator, furnace water circulation
Pump, the economizer, the water-cooling wall circuit sequentially connection, and the boiler water circulating pump opens machine circulating-heating pipe by the machine and connects
To the input terminal of the machine high-pressure heater, the output end of the machine high-pressure heater is connect with the economizer, described
The input terminal of the machine high-pressure heater is connect with the output end of the auxiliary vapour header of adjacent machine by air vent pipework, the adjacent machine it is auxiliary
The auxiliary steam of vapour header is transferred to the machine high-pressure heater by the air vent pipework, sets on the air vent pipework
There is pressure-regulating valve, the output end of the machine high-pressure heater is connect by drain valve with the condenser hydrophobic development unit.
2. the adjacent machine auxiliary steam according to claim 1 based on furnace water circulation starts heating system, which is characterized in that institute
Stating pressure-regulating valve is electrodynamic type pressure-regulating valve door.
3. the adjacent machine auxiliary steam according to claim 2 based on furnace water circulation starts heating system, which is characterized in that institute
The front-end and back-end for stating pressure-regulating valve are respectively equipped with a shut-off valve.
4. the adjacent machine auxiliary steam according to claim 1 based on furnace water circulation starts heating system, which is characterized in that institute
It states the machine and opens machine circulating-heating pipe equipped with the first valve.
5. the adjacent machine auxiliary steam according to claim 1 based on furnace water circulation starts heating system, which is characterized in that institute
Two sections of bleed steam pipeworks are stated equipped with the second valve.
6. the adjacent machine auxiliary steam according to claim 1 based on furnace water circulation starts heating system, which is characterized in that institute
It states and is equipped with third valve between boiler water circulating pump and the economizer.
7. the adjacent machine auxiliary steam according to claim 1 based on furnace water circulation starts heating system, which is characterized in that institute
Stating steam turbine is condensing turbine.
8. the adjacent machine auxiliary steam according to claim 7 based on furnace water circulation starts heating system, which is characterized in that institute
State the condensing turbine that steam turbine is 660MW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821454788.3U CN208846403U (en) | 2018-09-05 | 2018-09-05 | Adjacent machine auxiliary steam based on furnace water circulation starts heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821454788.3U CN208846403U (en) | 2018-09-05 | 2018-09-05 | Adjacent machine auxiliary steam based on furnace water circulation starts heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208846403U true CN208846403U (en) | 2019-05-10 |
Family
ID=66372211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821454788.3U Expired - Fee Related CN208846403U (en) | 2018-09-05 | 2018-09-05 | Adjacent machine auxiliary steam based on furnace water circulation starts heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208846403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322607A (en) * | 2020-03-16 | 2020-06-23 | 陕西宝鸡第二发电有限责任公司 | Control system and control method for early starting of high-pressure heater |
-
2018
- 2018-09-05 CN CN201821454788.3U patent/CN208846403U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322607A (en) * | 2020-03-16 | 2020-06-23 | 陕西宝鸡第二发电有限责任公司 | Control system and control method for early starting of high-pressure heater |
| CN111322607B (en) * | 2020-03-16 | 2022-04-15 | 陕西宝鸡第二发电有限责任公司 | Control system and control method for early starting of high-pressure heater |
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| 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: 20190510 Termination date: 20210905 |
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| CF01 | Termination of patent right due to non-payment of annual fee |