CN108019736A - One kind is used for steam power plant's steam heat recovery system - Google Patents
One kind is used for steam power plant's steam heat recovery system Download PDFInfo
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- CN108019736A CN108019736A CN201711183995.XA CN201711183995A CN108019736A CN 108019736 A CN108019736 A CN 108019736A CN 201711183995 A CN201711183995 A CN 201711183995A CN 108019736 A CN108019736 A CN 108019736A
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- steam
- shell
- power plant
- hot water
- recovery system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/02—Arrangements of feed-water pumps
- F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to one kind to be used for steam power plant's steam heat recovery system, the system includes a shell-and-tube heat exchanger, steam is passed in the tube side of the shell-and-tube heat exchanger, and the outlet of tube side is equipped with condensed-water recovering device and condensate tank successively, the shell side of the shell-and-tube heat exchanger is connected by circulating hot water pipe and connected with energy equipment, the condensate tank by constant pressure supply water unit with the circulating hot water pipe.Compared with prior art, the steam condensate of the present invention by the use of height softening substitutes the exceeded municipal tap water of original chlorion as moisturizing water source, reduces cost of water treatment, reduces Incrustation of pipe and corrosion risk；And the present invention digests steam condensate by inside, reduces its long-distance sand transport cost.
Description
Technical field
The present invention relates to steam power plant's heat recovery technology field, and in particular to one kind is used for steam heat recycling system of steam power plant
System.
Background technology
Thermal power generation, is coal and to convert heat to the steam kinetic energy in boiler by burning, then is converted to by steam turbine
Mechanical energy, is finally converted to electric energy by generator.Steam also has more heat, in order to avoid energy after steamer is promoted
The waste of amount, steam power plant can utilize the heat of steam to remove heating water, then be brought heat with energy equipment, steam cooling by water
The condensation water formed afterwards is delivered to steam power plant after collection by centrifugal blower-pump, and wait is thermally formed steam and is pushed to next time
Turbine generator.Other hand, with energy equipment during using heat, can be lost the hot water of a part, at this time, it is necessary to no
Disconnected ground moisturizing, to meet to be come from municipal water supply pipe, i.e. running water pipe with energy equipment energy demand, the water half of supplement, had
Body flow is as shown in Figure 1.But found in actual mechanical process, the system there are two it is larger the shortcomings that：First, with energy equipment
Easy fouling or it is corroded in the pipeline of connection；2nd, the cost needed for condensation water loopback is higher.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of cost is low, equipment makes
It is used for steam power plant's steam heat recovery system with long lifespan.
The purpose of the present invention can be achieved through the following technical solutions：One kind is used for steam heat recycling system of steam power plant
System, which includes a shell-and-tube heat exchanger, passes to steam in the tube side of the shell-and-tube heat exchanger, and the outlet of tube side according to
Secondary to be equipped with condensed-water recovering device and condensate tank, the shell side of the shell-and-tube heat exchanger connects use by circulating hot water pipe to be set
Standby, the condensate tank is connected by constant pressure supply water unit with the circulating hot water pipe.The present invention uses solidifying in condensate tank
Bear water and give circulating hot water pipe's moisturizing, i.e., substitute the exceeded municipal tap water of original chlorion using the steam condensate of height softening
As moisturizing water source, cost of water treatment is reduced, reduces Incrustation of pipe and corrosion risk.Further, since the condensation water in the system
Steam power plant be not recycled to, so reducing its long-distance sand transport cost.
The constant pressure supply water unit is included for measuring the flow sensor of hot water flow in circulating hot water pipe, for inciting somebody to action
Condensation water send the condensate pump into circulating hot water pipe from the condensate tank and is connected with flow sensor and is used to control
The controller of condensate pump opening and closing., can be with hot in automatic sensing circulating hot water pipe by the setting of flow sensor and controller
The changes in flow rate of water, timely and suitably moisturizing, ensures making full use of for steam waste heat, and the degree of automation is high.
The controller is PLC controller.
Connecting line between the condensate pump and circulating hot water pipe is equipped with check valve.
Centrifugal blower-pump is connected with the circulating hot water pipe, the centrifugal blower-pump is arranged on shell-and-tube heat exchanger shell side
Inlet.Centrifugal blower-pump is set, ensures circulation power of the hot water in circulating hot water pipe.
The condensate tank is equipped with discharge outlet, when condensation water aggregation is more, can discharge in time.
Compared with prior art, beneficial effects of the present invention are embodied in following several respects：
(1) it is used as moisturizing water by the use of the exceeded municipal tap water of the original chlorion of steam condensate replacement of height softening
Source, reduces cost of water treatment, reduces Incrustation of pipe and corrosion risk；
(2) internal digestion steam condensate, reduces its long-distance sand transport cost；
(3) operation of original hot-water heating system, condensate system and recovering system for steam condensing water is not influenced.
Brief description of the drawings
Fig. 1 is the connection diagram of the steam heat recovery system of the prior art；
Fig. 2 is the connection diagram of the steam heat recovery system of the present invention.
Wherein, 1 is condensed-water recovering device, and 2 be condensate tank, and 3 be constant pressure supply water unit, and 31 be flow sensor, 32
It is condensate pump for PLC controller, 33,4 be check valve, and 5 be shell-and-tube heat exchanger, and 6 be centrifugal blower-pump, and 7 be circulating hot water
Pipe, 8 be to use energy equipment, and ZQ is steam, and NJS is condensation water.
Embodiment
Elaborate below to the embodiment of the present invention, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
One kind is used for steam power plant's steam heat recovery system, its structure as shown in Figure 1, including a shell-and-tube heat exchanger 5,
Steam is passed in the tube side of shell-and-tube heat exchanger 5, and the outlet of tube side is equipped with condensed-water recovering device 1 and condensate tank 2 successively,
The shell side of shell-and-tube heat exchanger 5 is connected by circulating hot water pipe 7 uses energy equipment 8, and condensate tank 2 is by constant pressure supply water unit with following
Ring hot-water line 7 connects.Wherein, constant pressure supply water unit 3 includes being used for the flow sensor for measuring hot water flow in circulating hot water pipe 7
31st, for sending condensation water to the condensate pump 33 in circulating hot water pipe 7 from condensate tank 2 and being connected with flow sensor 31
And the PLC controller 32 for controlling condensate pump 33 to be opened and closed., can by the setting of flow sensor 31 and PLC controller 32
With the changes in flow rate of hot water in automatic sensing circulating hot water pipe 7, in time and suitably moisturizing, ensure the abundant profit of steam waste heat
With, and the degree of automation is high.
Connecting line between condensate pump 33 and circulating hot water pipe 7 is equipped with check valve 4.
Centrifugal blower-pump 6 is connected with circulating hot water pipe 7, centrifugal blower-pump 6 is arranged on 5 shell side inlet of shell-and-tube heat exchanger
Place.Centrifugal blower-pump 6 is set, ensures circulation power of the hot water in circulating hot water pipe 7.
Condensate tank 2 is equipped with discharge outlet, when condensation water aggregation is more, can discharge in time.
Claims (6)
1. one kind is used for steam power plant's steam heat recovery system, which includes a shell-and-tube heat exchanger, and the shell-and-tube changes
Steam is passed in the tube side of hot device, and the outlet of tube side is equipped with condensed-water recovering device and condensate tank, the shell-and-tube successively
The shell side of heat exchanger is connected with energy equipment by circulating hot water pipe, it is characterised in that the condensate tank passes through constant pressure supply water list
It is first to be connected with the circulating hot water pipe.
2. one kind according to claim 1 is used for steam power plant's steam heat recovery system, it is characterised in that the level pressure
Moisturizing unit include being used for measuring the flow sensor of hot water flow in circulating hot water pipe, for by condensation water from the condensation water
The control that case send the condensate pump into circulating hot water pipe and is connected and is used to controlling condensate pump to be opened and closed with flow sensor
Device.
3. one kind according to claim 2 is used for steam power plant's steam heat recovery system, it is characterised in that the control
Device is PLC controller.
4. one kind according to claim 2 is used for steam power plant's steam heat recovery system, it is characterised in that the condensation
Connecting line between water pump and circulating hot water pipe is equipped with check valve.
5. one kind according to claim 1 is used for steam power plant's steam heat recovery system, it is characterised in that the circulation
Centrifugal blower-pump is connected with hot-water line, the centrifugal blower-pump is arranged at shell-and-tube heat exchanger shell side inlet.
6. one kind according to claim 1 is used for steam power plant's steam heat recovery system, it is characterised in that the condensation
Water tank is equipped with discharge outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183995.XA CN108019736A (en) | 2017-11-23 | 2017-11-23 | One kind is used for steam power plant's steam heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183995.XA CN108019736A (en) | 2017-11-23 | 2017-11-23 | One kind is used for steam power plant's steam heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108019736A true CN108019736A (en) | 2018-05-11 |
Family
ID=62080141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711183995.XA Pending CN108019736A (en) | 2017-11-23 | 2017-11-23 | One kind is used for steam power plant's steam heat recovery system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108019736A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117663845A (en) * | 2023-11-21 | 2024-03-08 | 中国医学科学院医学生物学研究所 | Steam condensate self-flowing type waste heat utilization and recovery system for vaccine production workshop |
Citations (5)
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|---|---|---|---|---|
| CN203083001U (en) * | 2012-12-21 | 2013-07-24 | 中节能工业节能有限公司 | Low-grade steam heating and using system of waste heat boiler |
| CN104329830A (en) * | 2014-10-24 | 2015-02-04 | 河南省中原大化集团有限责任公司 | Turbine dead steam waste heat recovery process method |
| CN106091068A (en) * | 2016-06-07 | 2016-11-09 | 谷神生物科技集团有限公司 | Factory steam tail gas condensing Water Sproading heating heat-exchange system |
| CN206469540U (en) * | 2017-01-24 | 2017-09-05 | 北京华泰焦化工程技术有限公司 | Coking system and its residual neat recovering system |
| CN207501129U (en) * | 2017-11-23 | 2018-06-15 | 宁波杭州湾新区祥源动力供应有限公司 | One kind is used for steam power plant's steam heat recovery system |
-
2017
- 2017-11-23 CN CN201711183995.XA patent/CN108019736A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203083001U (en) * | 2012-12-21 | 2013-07-24 | 中节能工业节能有限公司 | Low-grade steam heating and using system of waste heat boiler |
| CN104329830A (en) * | 2014-10-24 | 2015-02-04 | 河南省中原大化集团有限责任公司 | Turbine dead steam waste heat recovery process method |
| CN106091068A (en) * | 2016-06-07 | 2016-11-09 | 谷神生物科技集团有限公司 | Factory steam tail gas condensing Water Sproading heating heat-exchange system |
| CN206469540U (en) * | 2017-01-24 | 2017-09-05 | 北京华泰焦化工程技术有限公司 | Coking system and its residual neat recovering system |
| CN207501129U (en) * | 2017-11-23 | 2018-06-15 | 宁波杭州湾新区祥源动力供应有限公司 | One kind is used for steam power plant's steam heat recovery system |
Non-Patent Citations (1)
| Title |
|---|
| 赵华民: "《设备管理与维修实践和探索》", 31 August 2005 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117663845A (en) * | 2023-11-21 | 2024-03-08 | 中国医学科学院医学生物学研究所 | Steam condensate self-flowing type waste heat utilization and recovery system for vaccine production workshop |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180511 |
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| RJ01 | Rejection of invention patent application after publication |