CN201706478U - Heat-recovering type demineralized water heating system - Google Patents
Heat-recovering type demineralized water heating system Download PDFInfo
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- CN201706478U CN201706478U CN201020115128XU CN201020115128U CN201706478U CN 201706478 U CN201706478 U CN 201706478U CN 201020115128X U CN201020115128X U CN 201020115128XU CN 201020115128 U CN201020115128 U CN 201020115128U CN 201706478 U CN201706478 U CN 201706478U
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Abstract
The utility model relates to a heat-recovering type demineralized water heating system which comprises a heating loop, a cooling loop and a deaerator water replenishing loop. The heating loop comprises a steam turbine, a condenser, a deaerator, a heat pump and a boiler, wherein the steam turbine is connected with a leading-in superheated steam pipeline and a leading-out heating extraction pipeline, an exhaust pipeline and a deoxidization extraction pipeline; the boiler is connected with the steam turbine through the superheated steam pipeline; the condenser is arranged on the exhaust pipeline; one end of the exhaust pipeline is connected with the deaerator after passing through the condenser; the deaerator is connected with the steam turbine through the deoxidization extraction pipeline; the exhaust pipeline is connected with the boiler through the deaerator; and the heating extraction pipeline is connected with the exhaust pipeline between the condenser and the deaerator through the heat pump. The heat-recovering type demineralized water heating system greatly improves the comprehensive energy saving effect through recovering the heat of the cooling loop.
Description
Technical field
The utility model relates to a kind of heating system, particularly a kind of residual heat recovery type demineralized water heating system.
Background technology
In extraction condensing type steam power plant with industry business of bleeding, after extraction steam for factories is sent, steam enters in the client's that draws gas the industrial cycle, condensed water does not reclaim, so, in order to satisfy the continuous operation of Turbo-generator Set, just need mend into the new water that is equal to the amount of drawing gas at oxygen-eliminating device, new water source is the running water after softening, 20 ℃ of mean temperatures just can cover the deoxygenation of oxygen-eliminating device ebuillition of heated will be preheating to 80 ℃～95 ℃ before covering oxygen-eliminating device after, and the preheating method that adopts is to take out 0.3～0.5MPa steam to mix water preheat with new water at present, but, existing mode of heating, owing to be subjected to the restriction of heat transfer mechanism, maximal efficiency is no more than 100%, do not have better approach to raise the efficiency, cut down the consumption of energy.When rate of water make-up is big, need more Steam Heating desalination demineralized water, generated energy reduces, and generating efficiency reduces.
The utility model content
At above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of heating system, and this heating system can be extracted the heat of the recirculated cooling water of power plant's cooling circuit, is used to heat the desalination demineralized water.
To achieve these goals, a kind of residual heat recovery type demineralized water of the utility model heating system comprises:
Heat supplying loop, described heat supplying loop comprises steam turbine, condenser, oxygen-eliminating device, heat pump and boiler, described steam turbine connects heat supply exhaust pipe, a gas exhaust piping and the deoxygenation exhaust pipe that a superheated steam pipeline and of introducing is drawn, and described boiler is connected with steam turbine by the superheated steam pipeline; Described condenser is located on the gas exhaust piping, and described gas exhaust piping end behind described condenser is connected with described oxygen-eliminating device; Described oxygen-eliminating device is connected with steam turbine by the deoxygenation exhaust pipe; Described gas exhaust piping is connected to boiler through oxygen-eliminating device, and described heat supply exhaust pipe is connected with gas exhaust piping between described condenser and the described oxygen-eliminating device through described heat pump;
Cooling circuit, described cooling circuit comprise cooling tower and are drawn and got back to through described condenser the recirculated cooling water pipeline of cooling tower by cooling tower; Introduce cooling tower one end on the described recirculated cooling water pipeline and be connected with a recirculated cooling water arm, described recirculated cooling water arm connects into cooling tower through described heat pump and draws on the recirculated cooling water pipeline of an end;
Oxygen-eliminating device moisturizing loop comprises and carries demineralized water to the oxygen-eliminating device moisturizing intake line of described heat pump with through described heat pump and finally connect into the oxygen-eliminating device moisturizing output pipe of described oxygen-eliminating device.
Described heat supply exhaust pipe is provided with control valve.
Described recirculated cooling water pipeline and/or recirculated cooling water arm are provided with water circulating pump.
Than prior art, the utility model residual heat recovery type demineralized water heating system is passed through the recycling to the heat of cooling circuit, and the synthesis energy saving effect improves greatly.In addition, because existing heat-supplying mode all is no more than 1 at the full stage heating efficiency COP of heating network operation, and the utility model heating system is about 2.1 at the comprehensive COP of row order section for the national games, and this just means whole year operation energy-conservation about about 52.3%.
Description of drawings
Fig. 1 is the schematic diagram of the utility model residual heat recovery type demineralized water heating system.
Main Reference numeral:
1 ... steam turbine; 2 ... generator; 3 ... condenser; 4 ... cooling tower;
5 ... oxygen-eliminating device; 6 ... heat pump; 7 ... the superheated steam pipeline;
8 ... the heat supply exhaust pipe; 9 ... gas exhaust piping; 10 ... the recirculated cooling water pipeline;
11 ... the recirculated cooling water arm; 12 ... the deoxygenation exhaust pipe;
13 ... oxygen-eliminating device moisturizing output pipe; 14 ... oxygen-eliminating device moisturizing intake line;
15,16 ... water circulating pump; 17 ... boiler; 18 ... control valve.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
As shown in Figure 1, a kind of residual heat recovery type demineralized water of the utility model heating system comprises:
Heat supplying loop, described heat supplying loop comprises steam turbine 1, condenser 3, oxygen-eliminating device 5, heat pump 6 and boiler 17, described steam turbine 1 connects heat supply exhaust pipe 8, a gas exhaust piping 9 and the deoxygenation exhaust pipe 12 that a superheated steam pipeline 7 and of introducing is drawn, described boiler 17 is connected with steam turbine 1 by superheated steam pipeline 7, described condenser 3 is located on the gas exhaust piping 9, and described gas exhaust piping 9 end behind described condenser 3 is connected with described oxygen-eliminating device 5; Described oxygen-eliminating device 5 is connected with steam turbine 1 by deoxygenation exhaust pipe 12; Described gas exhaust piping 9 is connected to boiler 17 through oxygen-eliminating devices 5, and described heat supply exhaust pipe 8 is connected with gas exhaust piping 9 between described condenser 3 and the described oxygen-eliminating device 5 through described heat pump 6;
Cooling circuit, described cooling circuit comprise cooling tower 4 and are drawn and got back to through described condenser 3 the recirculated cooling water pipeline 10 of cooling tower 4 by cooling tower 4; Introduce cooling tower one end on the described recirculated cooling water pipeline 10 and be connected with a recirculated cooling water arm 11, described recirculated cooling water arm 11 connects into cooling tower through described heat pump and draws on the recirculated cooling water pipeline 10 of an end;
Oxygen-eliminating device moisturizing loop comprises and carries demineralized water to the oxygen-eliminating device moisturizing intake line 14 of described heat pump with through described heat pump and finally connect into the oxygen-eliminating device moisturizing output pipe 13 of described oxygen-eliminating device.In the utility model heating system, heat pump 6 general preferred employing absorption heat pumps.
When the utility model system moves, the steam that boiler 17 produces is delivered to steam turbine 1 and drives acting from superheated steam pipeline 7, drive generator 2 and produce electric power, steam enters heat pump 6 or condenser 3 from steam turbine 1 respectively through heat supply exhaust pipe 8 and gas exhaust piping 9 discharges afterwards.The recirculated cooling water of process is taken away the amount of residual heat will of steam in the gas exhaust piping 9 in the condenser 3, and then heat pump 6 can extract the heat of recirculated cooling water, be used to heat the heat supply network backwater, effectively reclaimed the after-heat of cooling circuit thus, improved the heating efficiency (COP) of whole heating system greatly, the synthesis energy saving effect is obvious.
In addition, the temperature of recirculated cooling water is roughly 20～40 ℃ in the cooling circuit usually, and the temperature of oxygen-eliminating device moisturizing intake line demineralized water is 5～30 ℃, and the analytical calculation that the process heat supply network meets, the heat supply network backwater is added to 80～95 ℃ of economy the most.In order to reach the accurate control of system's operation, can be provided with control valve on the heat supply exhaust pipe 8 described in the utility model residual heat recovery type demineralized water heating system.As control valve among Fig. 1 18.
As of the present utility model further preferred, can be provided with water circulating pump on described recirculated cooling water pipeline 10 and/or the recirculated cooling water arm 11, as water circulating pump among Fig. 1 15,16.Can improve the efficient of waste heat recovery like this.
Energy-saving effect to the utility model residual heat recovery type demineralized water heating system is elaborated below:
Now energy-saving efficiency of the present utility model is described with typical demineralized water heating cycle.The demineralized water inflow temperature is: 20 ℃ are heated to 80 ℃ and advance oxygen-eliminating device; 30 ℃ of gas trap circulating water temperatures; Steam pressure is: 0.5MPa.
The energy-saving analysis of this patent is as follows:
Under these conditions, the utility model heat-supplying mode, its full load efficient is that COP is 2.1, and the maximum COP of existing mode of heating is 1, thereby the energy-saving efficiency of the utility model residual heat recovery type demineralized water heating system is: 52.3%.
Under other working conditions, the COP that heats of the present utility model is between 1.9～2.2, than existing heating system energy-saving: 47.3～54.5%.
Claims (4)
1. a residual heat recovery type demineralized water heating system is characterized in that, comprising:
Heat supplying loop, described heat supplying loop comprises steam turbine, condenser, oxygen-eliminating device, heat pump and boiler, described steam turbine connects heat supply exhaust pipe, a gas exhaust piping and the deoxygenation exhaust pipe that a superheated steam pipeline and of introducing is drawn, and described boiler is connected with steam turbine by the superheated steam pipeline; Described condenser is located on the gas exhaust piping, and described gas exhaust piping end behind described condenser is connected with described oxygen-eliminating device; Described oxygen-eliminating device is connected with steam turbine by the deoxygenation exhaust pipe; Described gas exhaust piping is connected to boiler through oxygen-eliminating device, and described heat supply exhaust pipe is connected with gas exhaust piping between described condenser and the described oxygen-eliminating device through described heat pump;
Cooling circuit, described cooling circuit comprise cooling tower and are drawn and got back to through described condenser the recirculated cooling water pipeline of cooling tower by cooling tower; Introduce cooling tower one end on the described recirculated cooling water pipeline and be connected with a recirculated cooling water arm, described recirculated cooling water arm connects into cooling tower through described heat pump and draws on the recirculated cooling water pipeline of an end;
Oxygen-eliminating device moisturizing loop comprises and carries demineralized water to the oxygen-eliminating device moisturizing intake line of described heat pump with through described heat pump and finally connect into the oxygen-eliminating device moisturizing output pipe of described oxygen-eliminating device.
2. residual heat recovery type demineralized water heating system as claimed in claim 1 is characterized in that described heat pump is an absorption heat pump.
3. residual heat recovery type demineralized water heating system as claimed in claim 1 is characterized in that described heat supply exhaust pipe is provided with control valve.
4. residual heat recovery type demineralized water heating system as claimed in claim 1 is characterized in that described recirculated cooling water pipeline and/or recirculated cooling water arm are provided with water circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020115128XU CN201706478U (en) | 2010-02-10 | 2010-02-10 | Heat-recovering type demineralized water heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020115128XU CN201706478U (en) | 2010-02-10 | 2010-02-10 | Heat-recovering type demineralized water heating system |
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| CN201706478U true CN201706478U (en) | 2011-01-12 |
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| CN201020115128XU Expired - Lifetime CN201706478U (en) | 2010-02-10 | 2010-02-10 | Heat-recovering type demineralized water heating system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374692A (en) * | 2011-09-29 | 2012-03-14 | 浙江工商大学 | Power-plant waste-heat recovering device |
| CN102840573A (en) * | 2011-06-24 | 2012-12-26 | 同方节能工程技术有限公司 | Water replenishing preheating system of thermal power plant |
| CN103017140A (en) * | 2012-12-25 | 2013-04-03 | 浙江工商大学 | Flue gas waste heat recovery device of biomass power plant |
| CN103017238A (en) * | 2012-12-25 | 2013-04-03 | 浙江工商大学 | Waste heat recovery heating system of biomass power plant |
| CN103017563A (en) * | 2012-12-09 | 2013-04-03 | 河北建投国融能源服务股份有限公司 | Circulating water running system and running method thereof |
| CN103047113A (en) * | 2013-01-11 | 2013-04-17 | 佛山市海天调味食品股份有限公司 | Heat energy recovery system for air compressor |
| 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 |
| CN107869713A (en) * | 2017-11-24 | 2018-04-03 | 浙江巨化热电有限公司 | A kind of steam power plant's low grade residual heat reuse means and method |
-
2010
- 2010-02-10 CN CN201020115128XU patent/CN201706478U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840573A (en) * | 2011-06-24 | 2012-12-26 | 同方节能工程技术有限公司 | Water replenishing preheating system of thermal power plant |
| CN102374692B (en) * | 2011-09-29 | 2014-05-14 | 浙江工商大学 | Power-plant waste-heat recovering device |
| CN102374692A (en) * | 2011-09-29 | 2012-03-14 | 浙江工商大学 | Power-plant waste-heat recovering device |
| CN103017563A (en) * | 2012-12-09 | 2013-04-03 | 河北建投国融能源服务股份有限公司 | Circulating water running system and running method thereof |
| CN103017238A (en) * | 2012-12-25 | 2013-04-03 | 浙江工商大学 | Waste heat recovery heating system of biomass power plant |
| CN103017140A (en) * | 2012-12-25 | 2013-04-03 | 浙江工商大学 | Flue gas waste heat recovery device of biomass power plant |
| CN103017238B (en) * | 2012-12-25 | 2016-01-06 | 浙江工商大学 | Biomass electric power plant Waste Heat Recovery heating system |
| CN103017140B (en) * | 2012-12-25 | 2016-01-06 | 浙江工商大学 | Biomass electric power plant cigarette wind waste heat recovery plant |
| CN103047113A (en) * | 2013-01-11 | 2013-04-17 | 佛山市海天调味食品股份有限公司 | Heat energy recovery system for air compressor |
| CN103047113B (en) * | 2013-01-11 | 2015-08-12 | 佛山市海天调味食品股份有限公司 | A kind of heat energy recovery system for air compressor |
| 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 |
| CN107869713A (en) * | 2017-11-24 | 2018-04-03 | 浙江巨化热电有限公司 | A kind of steam power plant's low grade residual heat reuse means and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TONGFANG KAWASAKI ADVANCED ENERGY-SAVING MACHINE C Free format text: FORMER NAME: TONGFANG CHUANQI AIR-CONDITIONER EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 065001, Langfang economic and Technological Development Zone, Hebei Province, Peng Peng Road, No. 333 Patentee after: TONGFANG KAWASAKI ADVANCED ENERGY-SAVING MACHINE CO., LTD. Address before: 065001, Langfang economic and Technological Development Zone, Hebei Province, Peng Peng Road, No. 333 Patentee before: Tongfang Chuanqi Air-conditioner Equipment Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 065001, 333 Peng Road, Langfang economic and Technological Development Zone, Hebei, China Patentee after: Tongfang energy saving equipment Co., Ltd. Address before: 065001, Langfang economic and Technological Development Zone, Hebei Province, Peng Peng Road, No. 333 Patentee before: TONGFANG KAWASAKI ADVANCED ENERGY-SAVING MACHINE CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |