CN205807387U - Power plant's demineralized water absorbs residual neat recovering system - Google Patents
Power plant's demineralized water absorbs residual neat recovering system Download PDFInfo
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- CN205807387U CN205807387U CN201620640403.7U CN201620640403U CN205807387U CN 205807387 U CN205807387 U CN 205807387U CN 201620640403 U CN201620640403 U CN 201620640403U CN 205807387 U CN205807387 U CN 205807387U
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Abstract
A kind of power plant demineralized water absorbs residual neat recovering system, it includes that water treatment facilities (1), demineralized water reclaim lag cooler heat retrieving apparatus (2), gland-sealing cooler (3), heat pump or heat exchanger (4) and oxygen-eliminating device (5), cooling tower (6) and engineering chiller (7), it is characterized in that the demineralized water of described water treatment facilities (1) is divided into multiple branch circuit, be incorporated in main line (19) entrance oxygen-eliminating device (5) by reclaiming lag cooler heat retrieving apparatus (2), gland-sealing cooler (3), heat pump or heat exchanger (4).This utility model energy efficient recovery turbine exhaust heat and boiler high temperature deslagging heat, utilize heat pump or heat exchanger to reclaim recirculated cooling water and be discharged into the heat of air, reduce boiler demineralized water in oxygen-eliminating device, heat the consumption of personal steam, save steam power plant's energy, improve heat capacity and the economy of steam power plant.
Description
Technical field
This utility model relates to a kind of heat recovery technology, especially residual heat of electric power plant recovery technology, specifically a kind of
Power plant's demineralized water absorbs residual neat recovering system.
Background technology
At present, for the back pressure unit steam power plant for heat supply, steam discharge is directly sent to heat user, and evaporated condensation water reclaims, because of
This runs continuously for meeting turbine LP rotors, needs constantly to fill into new water to oxygen-eliminating device, and needs water before covering oxygen-eliminating device
Preheating ebuillition of heated deoxygenation, therefore need to consume more steam heating during moisturizing, heating efficiency reduces.At recirculating cooling water system
In, the steam turbine auxiliary equipment such as lag cooler, gland-sealing cooler exist substantial amounts of used heat need to be taken away by recirculated cooling water be discharged into big
In gas, cause auxiliary system waste heat to waste, and moisture evaporation loss be serious, needs continuous moisturizing to cause water resource waste,
Recirculated water reuses deteriorating water quality, the easy fouling corrosion of the subsidiary engine such as lag cooler, gland-sealing cooler for a long time simultaneously.At boiler slag removal
In system, boiler slag removal high-temperature residual heat also results in energy waste.To this, do not cause enough attention.
Conventional thermal power plant demineralized water and circulating water cooling system device as it is shown in figure 1, Fig. 1 (a) is boiler DW system demineralized water system,
Former water demineralized water pipeline 9 after water treatment facilities 1 enters oxygen-eliminating device 5, comes from steam-turbine pipeline 16 and introduces oxygen-eliminating device, steams
Vapour enters boiler through pipeline 15 after carrying out demineralized water heating deoxygenation；Fig. 1 (b) circulation, recirculated water cools down through packing respectively
Device 3, lag cooler 2 and engineering cooling device 7 thereof etc. enter cooling tower 6 after absorbing heat and dispel the heat, and form closed circuit.
Utility model content
The purpose of this utility model is to enter the coolant-temperature gage relatively low needs consumption of oxygen-eliminating device greatly for current boiler demineralized water
Amount steam heating, and circulation lag cooler and steam turbine packing and engineering cooling equipment have the problem that amount of heat is wasted, if
Meter one can absorb steam turbine packing and lag cooler and engineering cooling equipment heat to heat demineralized water, thus for entering oxygen-eliminating device
Demineralized water improves coolant-temperature gage and reaches steam saving, and reclaims the recovery waste heat system of the waste heat of cooling tower and air cooler discharge
System.
The technical solution of the utility model is:
A kind of power plant demineralized water absorbs residual neat recovering system, and it includes that water treatment facilities 1, demineralized water reclaim lag cooler waste heat
Device 2, gland-sealing cooler 3, heat pump or heat exchanger 4 and oxygen-eliminating device 5, cooling tower 6 and engineering chiller 7, is characterized in that described
The demineralized water of water treatment facilities 1 is divided into multiple branch circuit, by reclaiming lag cooler heat retrieving apparatus 2, gland-sealing cooler 3, heat pump or heat exchanger 4
It is incorporated to main line 19 enter in oxygen-eliminating device 5.
The described demineralized cold water pipeline 9 after water treatment facilities 1 process is divided into road first branch road 12 and enters lag cooler
Heat retrieving apparatus 2 absorb heat laggard enter main line 19, the second branch road 10 of separately leading up to respectively enters the 3rd branch road 13 and the 4th
Road 11, after absorbing heat in the demineralized cold water entrance gland-sealing cooler 3 of entrance the 3rd branch road 13, the demineralized cold water with the 4th branch road 11 enters
Cool down with entrance packing after entering the waste heat in heat pump or the heat of heat exchanger 4 absorption cycle water lines 18 again and steam pipework 17
In device 3, the demineralized cold water mixing after heat absorption enters in main line 19 in the lump.
The described demineralized cold water pipeline 9 after water treatment facilities 1 process is divided into road first branch road 12 and enters lag cooler
Heat retrieving apparatus 2 absorb heat laggard enter main line 19, the second branch road 10 of separately leading up to respectively enters the 3rd branch road 13 and the 4th
Road 11, enters in the demineralized cold water entrance gland-sealing cooler 3 of the 3rd branch road 13 mixed with the demineralized cold water of the 4th branch road 11 after heat absorption
Enter in the lump after entering the waste heat in heat pump or the heat of heat exchanger 4 absorption cycle water lines 18 again and steam pipework 17 after conjunction
In main line 19.
Described lag cooler heat retrieving apparatus 2, gland-sealing cooler 3, heat pump or heat exchanger 4 all use high-efficiency bellows, corrugated tubing,
Finned tube, conduit pipe, ultra-high throughput pipe and heat exchange of heat pipe.
Demineralized water pipeline 9 be divided into multiple branch road respectively with lag cooler heat retrieving apparatus 2, gland-sealing cooler 3, heat pump or heat exchanger 4,
Oxygen-eliminating device 5 is connected, and demineralized water is sent in the feed water system of boiler through by the road 15 through the water of oxygen-eliminating device 5 deoxygenation.
Described circulating water line 18 and heat pump or heat exchanger 4 and cooling tower 6 and engineering chiller 7 are connected to form one
Closed circulation system.It is mounted on regulating valve or stop valve accordingly on described each branch road and pipeline.
The beneficial effects of the utility model:
This utility model uses demineralized water to absorb turbine shaft seal waste heat, owing to salt water quality is excellent, it is to avoid recirculated water is long
Time uses the problem of fouling corrosion, improves the equipment heat exchange efficiencies such as gland-sealing cooler；Demineralized water is used to absorb boiler high temperature row
Slag waste heat, can efficient recovery heat；Use demineralized water absorption cycle water low temperature exhaust heat, reduce cooling water tower circulation water pump and build into
This, reduce the operating cost of cooling tower, and great advantage can effectively reduce the consumption of oxygen-eliminating device heating steam, thus reaches joint
The purpose that can lower consumption.
This utility model uses demineralized water to reclaim lag cooler, steam turbine gland-sealing cooler heat, can effectively alleviate corrosion, returns
Receive boiler slag removal waste heat, simultaneously by the waste heat recovery of recirculated cooling water, be used to heating boiler and supplement demineralized water, both can reduce
Boiler water processes the heating of former water and heats the consumption of steam of using by oneself with deaerated water in oxygen-eliminating device, can reduce again the fortune of cooling tower etc.
Row expense, reuse approach the most reasonable, efficient realizes the many economy of resources of steam power plant, reduces waste heat discharge, improves ecology
Environment, waste heat recovery simultaneously makes again steam power plant's energy saving and efficiency increasing, it is achieved waste thermal energy " minimizing, recycling, resource ".
Accompanying drawing explanation
Tu1Shi conventional thermal power plant's demineralized water and the schematic diagram of circulating water cooling system device；Fig. 1 (a) is boiler demineralized water
System；Fig. 1 (b) batch is circulation.
Fig. 2 is one of structural representation of the present utility model.
Fig. 3 is the two of structural representation of the present utility model.
In figure: 1, water treatment facilities, 2, lag cooler waste-heat recoverer, 3, gland-sealing cooler, 4, heat pump or heat exchanger, 5, remove
Oxygen device, 6, cooling tower, 7, engineering chiller, 8, water circulating pump, 9-15, demineralized water pipeline, 19, main line, 16-17, steam
Pipeline, 18, circulating water line.
Detailed description of the invention
With embodiment, this utility model is further described below in conjunction with the accompanying drawings.
Embodiment one.
As shown in Figure 2.
A kind of power plant demineralized water absorbs residual neat recovering system, and it includes that water treatment facilities 1, demineralized water reclaim lag cooler waste heat
Device 2, gland-sealing cooler 3, heat pump or heat exchanger 4 and oxygen-eliminating device 5, cooling tower 6 and engineering chiller 7, described water processes dress
The demineralized water putting 1 is divided into multiple branch circuit, is incorporated to supervisor by reclaiming lag cooler heat retrieving apparatus 2, gland-sealing cooler 3, heat pump or heat exchanger 4
Road 19 enters in oxygen-eliminating device 5, concrete attachment structure as in figure 2 it is shown, Fig. 2 sewerage disposing device 1 process after demineralized cold water pipe
Road 9 be divided into road first branch road 12 enter lag cooler heat retrieving apparatus 2 absorb heat laggard enter main line 19, separately lead up to second
Branch road 10 respectively enters the 3rd branch road 13 and the 4th branch road 11, and the demineralized cold water entering the 3rd branch road 13 enters gland-sealing cooler 3
After middle heat absorption, the demineralized cold water with the 4th branch road 11 enters heat pump or the heat of heat exchanger 4 absorption cycle water lines 18 again and steaming
Mixing with the demineralized cold water entered after absorbing heat in gland-sealing cooler 3 after waste heat in vapor pipeline 17 enters in main line 19 in the lump.
In order to improve endothermic effect, described lag cooler heat retrieving apparatus 2, gland-sealing cooler 3, heat pump or heat exchanger 4 all should use efficient ripple
Stricture of vagina pipe, corrugated tubing, finned tube, conduit pipe, ultra-high throughput pipe and heat exchange of heat pipe realize heat exchange, and in Fig. 2, demineralized water pipeline 9 is divided into
Multiple branch roads are connected with lag cooler heat retrieving apparatus 2, gland-sealing cooler 3, heat pump or heat exchanger 4, oxygen-eliminating device 5 respectively, demineralized water warp
The water of oxygen-eliminating device 5 deoxygenation is sent in the feed water system of boiler through by the road 15.In addition circulating water line 18 and heat pump or heat exchanger 4
And cooling tower 6 and engineering chiller 7 are connected to form a closed circulation system.For the ease of controlling and adjusting when being embodied as
Joint, can be mounted on regulating valve or stop valve accordingly on each branch road and pipeline.Regulation valve or stop valve can use manually or
Electric structure, preferential employing electric structure is so that remotely controlling.
Owing to salt water quality is excellent, it is to avoid recirculated water uses the problem of fouling corrosion for a long time, improve gland-sealing cooler and
The equipment heat exchange efficiencies such as lag cooler and engineering cooling equipment；Demineralized water is used to absorb boiler high temperature deslagging waste heat, can efficient recovery
Heat；Use demineralized water absorption cycle water low temperature exhaust heat, reduce cooling water tower circulation water pump construction cost, reduce the operation of cooling tower
Expense, great advantage can effectively reduce the consumption of oxygen-eliminating device heating superheated steam, thus reach energy-saving and cost-reducing purpose.
Embodiment two.
As shown in Figure 3.
A kind of power plant demineralized water absorbs residual neat recovering system, and it includes that water treatment facilities 1, demineralized water reclaim lag cooler waste heat
Device 2, gland-sealing cooler 3, heat pump or heat exchanger 4 and oxygen-eliminating device 5, cooling tower 6 and engineering chiller 7, described water processes dress
The demineralized water putting 1 is divided into multiple branch circuit, is incorporated to supervisor by reclaiming lag cooler heat retrieving apparatus 2, gland-sealing cooler 3, heat pump or heat exchanger 4
Road 19 enters in oxygen-eliminating device 5, concrete attachment structure as it is shown on figure 3, water treatment facilities 1 in Fig. 3 process after demineralized cold water
Pipeline 9 be divided into road first branch road 12 enter lag cooler heat retrieving apparatus 2 absorb heat laggard enter main line 19, separately lead up to
Two branch roads 10 respectively enter the 3rd branch road 13 and the 4th branch road 11, and the demineralized cold water entering the 3rd branch road 13 enters gland-sealing cooler
Entrance heat pump or heat exchanger 4 absorption cycle water lines 18 again after mix with the demineralized cold water of the 4th branch road 11 after heat absorption in 3
Enter in the lump in main line 19 after waste heat in heat and steam pipework 17.In order to improve endothermic effect, more than described lag cooler
Hot device 2, gland-sealing cooler 3, heat pump or heat exchanger 4 all should use high-efficiency bellows, corrugated tubing, finned tube, conduit pipe, superelevation logical
Buret and heat exchange of heat pipe realize heat exchange, similarly, in Fig. 3 demineralized water pipeline 9 be divided into multiple branch road respectively with lag cooler waste heat
Device 2, gland-sealing cooler 3, heat pump or heat exchanger 4, oxygen-eliminating device 5 are connected, demineralized water through the water of oxygen-eliminating device 5 deoxygenation through by the road
15 send in the feed water system of boiler.In addition circulating water line 18 and heat pump or heat exchanger 4 and cooling tower 6 and engineering chiller 7
It is connected to form a closed circulation system.For the ease of controlling and regulation when being embodied as, all can pacify on each branch road and pipeline
Equipped with corresponding regulation valve or stop valve.Regulation valve or stop valve can use manually or electrically structure, preferentially use electric structure
So that remotely controlling.
This utility model is not directed to that part is same as the prior art maybe can use prior art to be realized.
Claims (7)
1. power plant's demineralized water absorbs a residual neat recovering system, and it includes that water treatment facilities (1), demineralized water reclaim lag cooler waste heat
Device (2), gland-sealing cooler (3), heat pump or heat exchanger (4) and oxygen-eliminating device (5), cooling tower (6) and engineering chiller (7), its
Feature is that the demineralized water of described water treatment facilities (1) is divided into multiple branch circuit, and by reclaiming lag cooler heat retrieving apparatus (2), packing cools down
Device (3), heat pump or heat exchanger (4) are incorporated to main line (19) and enter in oxygen-eliminating device (5).
Power plant the most according to claim 1 demineralized water absorbs residual neat recovering system, it is characterized in that described water treatment facilities
(1) the demineralized cold water pipeline (9) after processing is divided into a road after the first branch road (12) enters lag cooler heat retrieving apparatus (2) absorption heat
Entering main line (19), the second branch road (10) of separately leading up to respectively enters the 3rd branch road (13) and the 4th branch road (11), enters
The demineralized cold water of the 3rd branch road (13) enters and enters hot with the demineralized cold water of the 4th branch road (11) after absorbing heat in gland-sealing cooler (3)
After waste heat in the heat of pump or heat exchanger (4) absorption cycle water lines (18) again and steam pipework (17) with enter packing cold
But the demineralized cold water mixing after absorbing heat in device (3) enters in main line (19) in the lump.
Power plant the most according to claim 1 demineralized water absorbs residual neat recovering system, it is characterized in that described water treatment facilities
(1) the demineralized cold water pipeline (9) after processing is divided into a road after the first branch road (12) enters lag cooler heat retrieving apparatus (2) absorption heat
Entering main line (19), the second branch road (10) of separately leading up to respectively enters the 3rd branch road (13) and the 4th branch road (11), enters
The demineralized cold water of the 3rd branch road (13) enters after mixing with the demineralized cold water of the 4th branch road (11) after heat absorption in gland-sealing cooler (3)
After entering the waste heat in heat pump or the heat of heat exchanger (4) absorption cycle water lines (18) again and steam pipework (17), one goes forward side by side
Enter in main line (19).
Power plant the most according to claim 1 demineralized water absorbs residual neat recovering system, it is characterized in that described lag cooler waste heat
Device (2), gland-sealing cooler (3), heat pump or heat exchanger (4) all use high-efficiency bellows, corrugated tubing, finned tube, conduit pipe, superelevation
Flux tube and heat exchange of heat pipe.
5. absorb residual neat recovering system according to the power plant's demineralized water described in Claims 2 or 3, it is characterized in that demineralized water pipeline (9)
It is divided into multiple branch road to be connected with lag cooler heat retrieving apparatus (2), gland-sealing cooler (3), heat pump or heat exchanger (4), oxygen-eliminating device (5) respectively
Logical, demineralized water is during through the water of oxygen-eliminating device (5) deoxygenation, through by the road, (15) send into the feed water system of boiler.
Power plant the most according to claim 1 demineralized water absorbs residual neat recovering system, it is characterized in that described circulating water line
(18) it is connected to form a closed circulation system with heat pump or heat exchanger (4) and cooling tower (6) and engineering chiller (7).
Power plant the most according to claim 1 demineralized water absorbs residual neat recovering system, it is characterized in that described each branch road and pipe
It is mounted on road regulating valve or stop valve accordingly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620640403.7U CN205807387U (en) | 2016-06-27 | 2016-06-27 | Power plant's demineralized water absorbs residual neat recovering system |
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| CN201620640403.7U CN205807387U (en) | 2016-06-27 | 2016-06-27 | Power plant's demineralized water absorbs residual neat recovering system |
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| CN205807387U true CN205807387U (en) | 2016-12-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953215A (en) * | 2016-06-27 | 2016-09-21 | 江苏中圣高科技产业有限公司 | Recycling system capable of absorbing waste heat of thermal power plant by desalted water |
| CN114538661A (en) * | 2022-02-28 | 2022-05-27 | 西安热工研究院有限公司 | System and method for water quality treatment and waste heat utilization of closed water system of power plant |
-
2016
- 2016-06-27 CN CN201620640403.7U patent/CN205807387U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953215A (en) * | 2016-06-27 | 2016-09-21 | 江苏中圣高科技产业有限公司 | Recycling system capable of absorbing waste heat of thermal power plant by desalted water |
| CN105953215B (en) * | 2016-06-27 | 2018-06-08 | 江苏中圣高科技产业有限公司 | A kind of demineralized water absorbs the recovery system of steam power plant's waste heat |
| CN114538661A (en) * | 2022-02-28 | 2022-05-27 | 西安热工研究院有限公司 | System and method for water quality treatment and waste heat utilization of closed water system of power plant |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210628 Address after: 211112 no.2111 Chengxin Avenue, Science Park, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Jiangsu Zhongsheng clean energy Co.,Ltd. Address before: 211112, No. 2111, good faith Road, Jiangning District, Jiangsu, Nanjing Patentee before: JIANGSU SUNPOWER TECHNOLOGY Co.,Ltd. |