CN204006245U - Back pressure turbine recirculated water direct heating system - Google Patents

Back pressure turbine recirculated water direct heating system Download PDF

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Publication number
CN204006245U
CN204006245U CN201420450147.6U CN201420450147U CN204006245U CN 204006245 U CN204006245 U CN 204006245U CN 201420450147 U CN201420450147 U CN 201420450147U CN 204006245 U CN204006245 U CN 204006245U
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China
Prior art keywords
back pressure
pressure turbine
heat exchanger
supply network
heat supply
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420450147.6U
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Chinese (zh)
Inventor
付德强
王壮
刘政
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SHANDONG HUANNENG DESIGN INSTITUTE Co Ltd
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Priority to CN201420450147.6U priority Critical patent/CN204006245U/en
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Publication of CN204006245U publication Critical patent/CN204006245U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of back pressure turbine recirculated water direct heating system, its structure comprises back pressure turbine, the below of back pressure turbine steam drain is provided with a heat supply network heat exchanger, and the steam discharge of back pressure turbine is introduced heat supply network heat exchanger by two jet chimneys; The recirculated water of heat supply network heat exchanger is delivered to hot user by water circulating pump, and the condensed water of back pressure turbine back pressure steam discharge is delivered to oxygen-eliminating device through condensate pump.That this system takes up room is little, cost is low, convenient management and plant maintenance, the problem such as solved heat supply temperature and pressure of supply water is on the low side, and heat capacity deficiency and heating area are less than normal.

Description

Back pressure turbine recirculated water direct heating system
Technical field
The utility model relates to heat supply process field, specifically a kind of back pressure turbine recirculated water direct heating system.
Background technology
The energy is the most basic driving force of All Around The World development and economic growth, is the basis that the mankind depend on for existence.The survival and development that energy shortage, contention for resource and the problems such as environmental pollution of excessively using the energy to cause are threatening the mankind.Along with country is more and more higher to the utilization requirement of the energy, require to improve energy development conversion and utilization ratio.
Also there is following problem in the using energy source aspect of power plant at present:
1, middle-size and small-size pure condensate generating set heat efficiency is very low, current in the situation that, do not allowed to go up again, calendar year 2001, the < < Cogeneration Project feasibility study science and technology regulation > > 1.6.7 bar of State Economic and Trade Commission, national development plan committee, Ministry of Construction's issue: " in area with good conditionsi; can consider to take out solidifying unit low-vacuum-operating at Heating Period; the scheme of circulating water heating heating, recover conventional operation at non-heating period ".Therefore, had many Duo Jia power plant to adopt low vacuum circulating water heating for many years, but low vacuum circulating water heating also exist heat supply temperature and pressure of supply water on the low side, the problem such as heat capacity deficiency and heating area are less than normal..
2, middle-size and small-size back pressure unit adds the other one-level heat exchange station of building of scheme need of one-level heat exchange station, not only increase extra occupation of land, and the maintenance cost in initial investment and later stage increases.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of back pressure turbine recirculated water direct heating system, and that this system takes up room is little, cost is low, convenient management and plant maintenance, the problem such as solved heat supply temperature and pressure of supply water is on the low side, and heat capacity deficiency and heating area are less than normal.
The technical scheme in the invention for solving the technical problem is: back pressure turbine recirculated water direct heating system, comprise back pressure turbine, the below of back pressure turbine steam drain is provided with a heat supply network heat exchanger, and the steam discharge of back pressure turbine is introduced heat supply network heat exchanger by two jet chimneys; The recirculated water of heat supply network heat exchanger is delivered to hot user by water circulating pump, and the condensed water of back pressure turbine back pressure steam discharge is delivered to oxygen-eliminating device through condensate pump.
Further technical scheme is, on the pipeline between described back pressure turbine and heat supply network heat exchanger, metal compensator is installed.
Compared with prior art, the utlity model has following beneficial effect:
1, adopt back pressure turbine recirculated water direct heating, turbine back pressure exhaust steam pressure is 0.196MPa (absolute pressure), and supply water temperature has reached 90 ℃, and heat capacity is strong.
2, steam turbine cycle water pressure of supply water is high, and this unit pressure of supply water reaches as high as 1.5MPa, can reach farthest tens kilometers, and heating area is large.
3, this system directly merges one-level heat exchange station and steam turbine building, has saved space, has reduced the investment at initial stage.
4, because the merging of one-level heat exchange station and steam turbine building has facilitated operational management and the plant maintenance in later stage.
5, existing industry restructuring guidance list regulation " adopts back pressure (taking out the back of the body) type cogeneration of heat and power, thermoelectric cold Poly-generation, 300,000 kilowatts and above cogeneration units ", and this system meets standing order, has application value and prospect.
Accompanying drawing explanation
Fig. 1 is the system diagram of the utility model embodiment;
The specific embodiment
Below in conjunction with Figure of description and specific embodiment, the utility model will be further described:
As shown in Figure 1, back pressure turbine recirculated water direct heating system of the present utility model, comprises back pressure turbine, and the below of back pressure turbine steam drain is provided with a heat supply network heat exchanger, and the steam discharge of back pressure turbine is introduced heat supply network heat exchanger by two jet chimneys; The recirculated water of heat supply network heat exchanger is delivered to hot user by water circulating pump, and the condensed water of back pressure turbine back pressure steam discharge is delivered to oxygen-eliminating device through condensate pump.
On pipeline between described back pressure turbine and heat supply network heat exchanger, metal compensator is installed.Metal compensator can absorb pipeline by the change in size former thereby that produce such as expand with heat and contract with cold, thereby reduces the stress of tube wall and act on the active force on valve member or supporting structure.
Below in conjunction with a course of work, the utility model will be further described:
This system directly merges one-level heat exchange station and steam turbine building, be that heat supply network heat exchanger is directly arranged in to back pressure turbine steam drain below, the main steam of HTHP is after Turbo-generator Set generating, and the back pressure steam discharge of steam turbine enters heat exchangers for district heating as the vapour source of heat cycles water; On the pipeline between turbine back pressure steam drain and heat supply network heat exchanger, metal compensator is installed, by two jet chimneys, turbine back pressure steam discharge is directly introduced to heat supply network heat exchanger, in heat supply network heat exchanger by the circulating water heating of high pressure, recirculated water is delivered to hot user's heat supply by water circulating pump, because turbine back pressure exhaust steam pressure is 0.196MPa (absolute pressure), supply water temperature has reached 90 ℃, and owing to improving water circulating pump pressure head, this unit pressure of supply water reaches as high as 1.5MPa, has increased heat capacity and heating area radius.The condensate water that the condensation of back pressure steam discharge is got off is delivered to oxygen-eliminating device through condensate pump.
On pipeline, also should arrange as required dirt separator, valve etc.; as one of ordinary skilled in the art; completely can be as the case may be; the above-mentioned parts that needs are used specifically arrange; for ease of explanation and understand improvement feature of the present utility model; it the related content of this part is no longer elaborated, so can not form impact to protection domain of the present utility model.
The foregoing is only preferred embodiment of the present utility model; be not whole embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle; any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Except technical characterictic described in description, all the other technical characterictics are those skilled in the art's known technology, for outstanding innovative characteristics of the present utility model, do not repeat them here.

Claims (2)

1. back pressure turbine recirculated water direct heating system, comprises back pressure turbine, it is characterized in that, the below of back pressure turbine steam drain is provided with a heat supply network heat exchanger, and the steam discharge of back pressure turbine is introduced heat supply network heat exchanger by two jet chimneys; The recirculated water of heat supply network heat exchanger is delivered to hot user by water circulating pump, and the condensed water of back pressure turbine back pressure steam discharge is delivered to oxygen-eliminating device through condensate pump.
2. back pressure turbine recirculated water direct heating system according to claim 1, is characterized in that, on the pipeline between described back pressure turbine and heat supply network heat exchanger, metal compensator is installed.
CN201420450147.6U 2014-08-11 2014-08-11 Back pressure turbine recirculated water direct heating system Expired - Fee Related CN204006245U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420450147.6U CN204006245U (en) 2014-08-11 2014-08-11 Back pressure turbine recirculated water direct heating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420450147.6U CN204006245U (en) 2014-08-11 2014-08-11 Back pressure turbine recirculated water direct heating system

Publications (1)

Publication Number Publication Date
CN204006245U true CN204006245U (en) 2014-12-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420450147.6U Expired - Fee Related CN204006245U (en) 2014-08-11 2014-08-11 Back pressure turbine recirculated water direct heating system

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201574A (en) * 2015-10-12 2015-12-30 青岛华捷汽轮机有限公司 Heating low-pressure steam small-pressure-difference recycling high-power turbine asynchronous generating heating station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105201574A (en) * 2015-10-12 2015-12-30 青岛华捷汽轮机有限公司 Heating low-pressure steam small-pressure-difference recycling high-power turbine asynchronous generating heating station

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 2000 Shun Tai Plaza Building 1 B zone 20 room 2002

Patentee after: SHANDONG HUANNENG DESIGN INSTITUTE CO., LTD.

Address before: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 2000 Shun Tai Plaza Building East Building 19-20 layer

Patentee before: SHANDONG HUANNENG DESIGN INSTITUTE CO., LTD.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141210

Termination date: 20200811