CN201620920U - Coarse vacuum heating device - Google Patents
Coarse vacuum heating device Download PDFInfo
- Publication number
- CN201620920U CN201620920U CN 200920214962 CN200920214962U CN201620920U CN 201620920 U CN201620920 U CN 201620920U CN 200920214962 CN200920214962 CN 200920214962 CN 200920214962 U CN200920214962 U CN 200920214962U CN 201620920 U CN201620920 U CN 201620920U
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- China
- Prior art keywords
- gate valve
- circulating water
- water pipeline
- outlet
- heating
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model relates to a coarse vacuum heating device comprising a steam turbine, a condenser, a surface heat exchanger, a water cooling tower, a low-temperature hot water pump, a mixed heat exchanger and a circulating water pipeline. The coarse vacuum heating device is characterized in that the circulating water pipeline is internally provided with a gate valve and additionally provided with a circulating water pipeline which is provided with the gate valve, wherein the added circulating water pipeline is connected with the circulating water pipeline in parallel and then connected into the inlet of the condenser; the gate valve is added between the outlet of the low-temperature hot water pump and the inlet of the mixed heat exchanger; a low-temperature hot water pipeline with the gate valve is added between the inlet of the added gate valve and the outlet of the gate valve in the circulating water pipeline as well as the outlet of the added circulating water pipeline; and another low-temperature hot water pipeline with the gate valve is added between the outlet of the added gate valve and the outlet of the condenser. The coarse vacuum heating device not only saves circulating water quantity and the power consumption of a water circulating pump, but also saves the usage of steam simultaneously; in addition, the use can be optimized, the investment is less and the economic benefit is obvious.
Description
[technical field]
The utility model relates to steam turbine water of condensation and heating water heat transfer technology field, a kind of heating plant of suitable rough vacuum specifically.
[technical background]
In the winter heating season in the north, the most employing mended steam with the last coolant-temperature gage that improves heating water or directly use steam heating in heating water, do not carry out reasonable energy according to the principle of " potential temperature counterpart, cascade utilization ", and it is huge to cause available energy to lose.
In large-scale petrochemical enterprise, all be equipped with independently thermoelectricity plant, the steam turbine that is equipped with condensed steam type or sucking condensing type in the thermoelectricity plant is to realize cogeneration of heat and power, steam turbine need cool off with circulating water in the vapour condenser of steam at condition of high vacuum degree with the final stage discharge in order to improve generated energy in the process of operation, a large amount of steam latent heats is recycled water and takes away (be about steam turbine inlet steam calorific value 60%), and energy loss is huge.
[summary of the invention]
The purpose of this utility model is to overcome the deficiencies in the prior art, improve delivery temperature by the exhaust pressure that improves steam turbine, and adopt the water of condensation latent heat of steam turbine to heat heating water, substitute the method for in heating water, mending steam, solved the problem that using energy source is unreasonable, energy loss is big.
For achieving the above object, the utility model has designed a kind of rough vacuum heating plant, comprise steam turbine, vapour condenser, surface-type heat exchanger, cooling tower, warm water pump, direct contact heat exchanger, circulating water pipeline, it is characterized in that: establish a gate valve and newly-increased circulating water pipeline that is provided with gate valve in the circulating water pipeline, the import of described newly-increased circulating water pipeline and access vapour condenser after circulating water pipeline is in parallel; A newly-increased gate valve between described low-temperature water heating delivery side of pump and the direct contact heat exchanger import, newly-increased low-temperature water heating pipeline that is provided with gate valve between the outlet of the outlet of gate valve and newly-increased circulating water pipeline in the import of described newly-increased gate valve and the circulating water pipeline, and between the outlet of the outlet of this newly-increased gate valve and vapour condenser, increase another newly and be provided with the low-temperature water heating pipeline of gate valve.
The utility model is compared with prior art, on the existing equipment basis, has set up equipment such as pipeline and valve, not only saved the power consumption of quantity of circulating water and circulating water pump, saved the use amount of steam simultaneously, and used and to be optimized, little investment, remarkable in economical benefits.
[description of drawings]
Fig. 1 is the connection diagram of existing steam turbine, heating water.
Fig. 2 is the connection diagram after the utility model is implemented.
Referring to Fig. 1 and Fig. 2,1 is steam turbine; 2 is vapour condenser; 3 is surface-type heat exchanger; 4 is cooling tower; 5,6 is steam line; 7,15 is circulating water pipeline; 8 is circulating water pump; 9,11 are the heating waterpipe; 10 is the low-temperature water heating pump; 12 is steam line; 13 is direct contact heat exchanger; 14,16,17,18,19,20 is gate valve; 21,22 is the low-temperature water heating pipeline; 23 is control valve.
[embodiment]
The utility model is described in further detail below in conjunction with accompanying drawing.
Be illustrated in figure 1 as the connection diagram of existing steam turbine, heating water.
Current flow process is as follows: after steam enters steam turbine 1 expansion acting through steam line 5, pressure and temperature is T1 and P1 when entering vapour condenser 2 by steam line 6, temperature is that 25 ℃～45 ℃, pressure are 0.004MPa～0.01MPa, in vapour condenser with circulating water pipeline 7 in the circulating water heat exchange, circulating water temperature is 20～35 ℃ by T3, and to be elevated to T4 be 30～45 ℃.Circulating water is brought heat into cooling tower 4 and loose in atmosphere, and is recycling after circulating water pump 8 boosts again.
The heating flow process is: 60～70 ℃ of vapor mixing heating that enter after low-temperature water heating pump 10 boosts in hybrid direct contact heat exchanger 13 and the steam line 12 of low-temperature water heating, temperature is elevated to 70～80 ℃ and enters in the surface-type heat exchanger 3 again, with the 11 heating water heat exchange of process heating waterpipe, temperature is 50～60 ℃.The temperature of heating water rises to 70～80 ℃ after the heat exchange, and the low-temperature water heating temperature reduces.The inlet that low-temperature water heating after the heat exchange is got back to low-temperature water heating pump 10 through heating waterpipe 9 circulates, because temperature reduces after the heat exchange, needs constantly to replenish the steam of high-temperature in low-temperature water heating, to satisfy the demand of user heating.
In the above-mentioned flow process, in cogeneration power plant, be cooled with circulating water steam and need consume a large amount of circulating water, increased the energy consumption of full factory.Mending steam in the heating process in heating water is a kind of high-quality low phenomenon of using of typical energy, and the available energy loss is big.
Referring to Fig. 2, the flow process after the improvement is as follows:
Steam enters steam turbine 1 expansion acting through steam line 5, adjusts the exhaust pressure of steam turbine, by P
1For 0.004MPa～0.01MPa is elevated to P
1' be 0.04～0.05MPa, this moment, exhaust temperature was by T
1For bringing up to T
1' 75～80 ℃ are entered in the vapour condenser 2 by steam line 6.
Inactive former circulating water flow process, closing gate valve 14,16,17,20, closed control valve 23, heating water is entered in the vapour condenser 2 by newly-increased low-temperature water heating pipeline 21, steam discharge heat exchange with steam turbine 1, after raising, temperature enters in the direct contact heat exchanger 13 by newly-increased low-temperature water heating pipeline 22, again by the heating water heat exchange of surface-type heat exchanger 3 with process heating waterpipe 11 plant areas or living area, the temperature of the heating water after the heat exchange all can reach the temperature of former flow process, heating load can realize by the regulation and control exhaust steam pressure, when heating load is high, improve exhaust steam pressure, when load is low, reduce exhaust steam pressure.
Claims (1)
1. rough vacuum heating plant, comprise steam turbine, vapour condenser, surface-type heat exchanger, cooling tower, warm water pump, direct contact heat exchanger, circulating water pipeline is characterized in that: establish a gate valve (16) and newly-increased circulating water pipeline (15) that is provided with gate valve (14) in the circulating water pipeline (7), the import of vapour condenser (2) is inserted in described newly-increased circulating water pipeline (15) back in parallel with circulating water pipeline (7); A newly-increased gate valve (20) between the outlet of described low-temperature water heating pump (10) and direct contact heat exchanger (13) import, newly-increased low-temperature water heating pipeline (21) that is provided with gate valve (18) between the outlet of the import of newly-increased gate valve (20) and the outlet of the gate valve (16) in the circulating water pipeline (7) and newly-increased circulating water pipeline (15), and between the outlet of the outlet of this newly-increased gate valve (20) and vapour condenser (2), increase another newly and be provided with the low-temperature water heating pipeline (22) of gate valve (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920214962 CN201620920U (en) | 2009-12-29 | 2009-12-29 | Coarse vacuum heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920214962 CN201620920U (en) | 2009-12-29 | 2009-12-29 | Coarse vacuum heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201620920U true CN201620920U (en) | 2010-11-03 |
Family
ID=43024376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920214962 Expired - Fee Related CN201620920U (en) | 2009-12-29 | 2009-12-29 | Coarse vacuum heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201620920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016082A (en) * | 2012-12-25 | 2013-04-03 | 华北电力大学 | 300MW-capacity-level low vacuum heat supply steam turbine system and adjusting method thereof |
| CN103017132A (en) * | 2013-01-06 | 2013-04-03 | 徐海军 | Electric steam boiler system |
-
2009
- 2009-12-29 CN CN 200920214962 patent/CN201620920U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016082A (en) * | 2012-12-25 | 2013-04-03 | 华北电力大学 | 300MW-capacity-level low vacuum heat supply steam turbine system and adjusting method thereof |
| CN103017132A (en) * | 2013-01-06 | 2013-04-03 | 徐海军 | Electric steam boiler system |
| CN103017132B (en) * | 2013-01-06 | 2014-11-05 | 徐海军 | Electric steam boiler system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU YOUHUA PROCESS TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI JIUYUAN PETROLEUM CHEMICAL CO., LTD. Effective date: 20110119 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200120 ROOM 701, NO.738, SHANGCHENG ROAD, PUDONG NEW DISTRICT, SHANGHAI TO: 510630 ROOM 2206, JINSHAN BUILDING, NO.248, WUSHAN ROAD, TIANHE DISTRICT, GUANGZHOU CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110119 Address after: 510630 room 2206, Jinshan building, No. five, 248 mountain road, Guangzhou, Guangdong, Tianhe District Patentee after: Guangzhou Youhua Process Technology Address before: 200120 room 738, 701 Shangcheng Road, Pudong New Area, Shanghai Patentee before: Shanghai Jiuyuan Petrochemical Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20171229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |