CN204534541U - A kind of residual heat from boiler fume utilizes system - Google Patents
A kind of residual heat from boiler fume utilizes system Download PDFInfo
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- CN204534541U CN204534541U CN201520182812.2U CN201520182812U CN204534541U CN 204534541 U CN204534541 U CN 204534541U CN 201520182812 U CN201520182812 U CN 201520182812U CN 204534541 U CN204534541 U CN 204534541U
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Abstract
The utility model relates to energy-saving and emission-reduction field, system is utilized more specifically to a kind of residual heat from boiler fume, utilize the condensed water of waste-heat from steam turbine of boiler smoke, the waste heat recovery of boiler smoke is recycled, fuel saving, improve boiler efficiency, reduce production cost, well respond the call of country's " energy-saving and emission-reduction ".Heat exchanger is arranged in flue, the cross section of flue install than heat exchange before area increase, circulating pump is arranged on tedge, and one end of tedge is connected with the delivery port of heat exchanger, and the other end of tedge is connected with the water inlet of drum.Heat exchanger control valve is arranged on down-comer, and one end of down-comer is connected with the water inlet of heat exchanger, and the other end of down-comer is connected with drum delivery port.Booster pump is arranged on condensed water water inlet pipe, and condensed water control valve is arranged on condensed water water inlet pipe, and condensed water water inlet pipe end is connected with drum, and the end of condensed water outlet pipe is connected with drum.
Description
Technical field
The utility model relates to energy-saving and emission-reduction field, utilizes system more specifically to a kind of residual heat from boiler fume.
Background technology
Energy-conserving and environment-protective have been listed in first of seven great strategy new industries, and heat is greatly taken away in the direct discharge of power plant boiler flue gas, and a large amount of energy scatters and disappears with flue gas.The exhaust gas temperature of boiler is generally more than 150 DEG C, and the exhaust gas temperature of indivedual old unit has even exceeded 180 DEG C, and therefore, boiler exhaust gas waste heat is the utilized heating power resource had a high potential.Residual heat from boiler fume can be used as heating condensate water, and at present, the mode of heating has direct heat transfer and indirect heat exchange two kinds.Namely direct heat transfer utilizes flue gas directly to contact with needing heat-absorbing medium, and indirect heat exchange is heating agent with intermediate medium, absorbs fume afterheat by intermediate medium, then thermal release is given the medium that need absorb heat.Direct heat transfer efficiency is high, and shortcoming is heat exchanger tube once reveal, and directly can pollute condensed water, affect the safety of unit, stable operation, the latter belongs to secondary heat exchange, and the thermal efficiency is low, can not adopt in a large number.
Summary of the invention
The technical problem that the utility model mainly solves is: provide a kind of residual heat from boiler fume to utilize system, utilize the condensed water of waste-heat from steam turbine of boiler smoke, the waste heat recovery of boiler smoke is recycled, fuel saving, improve boiler efficiency, reduce production cost, well respond the call of country's " energy-saving and emission-reduction ".
For solving the problems of the technologies described above, the utility model relates to energy-saving and emission-reduction field, system is utilized more specifically to a kind of residual heat from boiler fume, comprise flue, circulating pump, tedge, condensed water water inlet pipe, booster pump, condensed water control valve, condensed water outlet pipe, drum, heat exchanger control valve, down-comer and heat exchanger, utilize the condensed water of waste-heat from steam turbine of boiler smoke, the waste heat recovery of boiler smoke is recycled, fuel saving, improve boiler efficiency, reduce production cost, well respond the call of country's " energy-saving and emission-reduction ".
Heat exchanger is arranged in flue, and circulating pump is arranged on tedge, and one end of tedge is connected with the delivery port of heat exchanger, and the other end of tedge is connected with the water inlet of drum.Heat exchanger control valve is arranged on down-comer, and one end of down-comer is connected with the water inlet of heat exchanger, and the other end of down-comer is connected with drum delivery port.Booster pump is arranged on condensed water water inlet pipe, and condensed water control valve is arranged on condensed water water inlet pipe, and condensed water water inlet pipe end is connected with drum, and the end of condensed water outlet pipe is connected with drum.
As the further optimization of this programme, a kind of residual heat from boiler fume of the utility model utilizes the heat exchanger described in system to be pipe heat exchanger, and its material is stainless steel.
As the further optimization of this programme, a kind of residual heat from boiler fume of the utility model utilizes the medium in the heat exchanger described in system to be demineralized water.
As the further optimization of this programme, a kind of residual heat from boiler fume of the utility model utilizes between the delivery port of the heat exchanger described in system and tedge and seals, and seals between the water inlet of heat exchanger and down-comer.
As the further optimization of this programme, a kind of residual heat from boiler fume of the utility model utilizes between the water inlet of the drum described in system and tedge and seals, seal between the delivery port of drum and down-comer, seal between drum and condensed water water inlet pipe, seal between drum and condensed water outlet pipe.
As the further optimization of this programme, a kind of residual heat from boiler fume of the utility model utilizes the tedge described in system parallel with between down-comer.
A kind of residual heat from boiler fume of the utility model utilizes the advantage of system to be: the condensed water of waste-heat from steam turbine utilizing boiler smoke, the waste heat recovery of boiler smoke is recycled, fuel saving, improve boiler efficiency, reduce production cost, well respond the call of country's " energy-saving and emission-reduction ".
Accompanying drawing explanation
Fig. 1 is the fundamental diagram that a kind of residual heat from boiler fume of the utility model utilizes system.
In figure: flue 1; Circulating pump 2; Tedge 3; Condensed water water inlet pipe 4; Booster pump 5; Condensed water control valve 6; Condensed water outlet pipe 7; Drum 8; Heat exchanger control valve 9; Down-comer 10; Heat exchanger 11.
Detailed description of the invention
In FIG, the utility model relates to energy-saving and emission-reduction field, system is utilized more specifically to a kind of residual heat from boiler fume, comprise: flue, circulating pump, tedge, condensed water water inlet pipe, booster pump, condensed water control valve, condensed water outlet pipe, drum, heat exchanger control valve, down-comer and heat exchanger, utilize the condensed water of waste-heat from steam turbine of boiler smoke, the waste heat recovery of boiler smoke is recycled, fuel saving, improve boiler efficiency, reduce production cost, well respond the call of country's " energy-saving and emission-reduction ".
Heat exchanger 11 is pipe heat exchanger, and its material is stainless steel, and the medium in heat exchanger 11 is demineralized water, it is for reducing corrosivity, and heat exchanger 11 temperature is at about 150 DEG C, and its stainless steel material has corrosion-resistant, resistant to elevated temperatures advantage, therefore, the material selection stainless steel of heat exchanger 11.Heat exchanger 11 is arranged in flue 1, the cross section of flue 1 install than heat exchanger 11 before area increase, avoid the less generation resistance in space of flue 1 after mounting heat exchanger 11.Circulating pump 2 is arranged on tedge 3, and one end of tedge 3 is connected with the delivery port of heat exchanger 11, and the other end of tedge 3 is connected with the water inlet of drum 8.Heat exchanger control valve 9 is arranged on down-comer 10, and one end of down-comer 10 is connected with the water inlet of heat exchanger 11, and the other end of down-comer 10 is connected with drum 8 delivery port.The flowing of demineralized water in heat exchanger 11 accelerated by circulating pump 2, in order to make the demineralized water in heat exchanger 11 well form backflow, need ensure between tedge 3 with down-comer 10 parallel.Booster pump 5 is arranged on condensed water water inlet pipe 4, and condensed water control valve 6 is arranged on condensed water water inlet pipe 4, and condensed water water inlet pipe 4 end is connected with drum 8, and the end of condensed water outlet pipe 7 is connected with drum 8.Booster pump 5 provides pressure to the circulation of condensed water, in order to the leakage preventing residual heat from boiler fume from utilizing system, need to seal between the delivery port of heat exchanger 11 and tedge 3, seal between the water inlet of heat exchanger 11 and down-comer 10, seal between the water inlet of drum 8 and tedge 3, seal between the delivery port of drum 8 and down-comer 10, seal between drum 8 and condensed water water inlet pipe 4, seal between drum 8 and condensed water outlet pipe 7.
Open heat exchanger control valve 9, after demineralized water absorbs smoke pre-heating in heat exchanger 11, start circulating pump 2, demineralized water becomes steam and under the effect of circulating pump 2, desalination steam enters drum 8 by tedge 3.Open condensed water control valve 6 simultaneously, start booster pump 5, the condensed water of low-pressure heater outlet enters drum 8 by condensed water water inlet pipe 4.In drum 8, desalination steam and condensed water carry out heat exchange, and condensed water is heated, and the condensed water after heating is back to low-pressure heater, and the demineralized water after cooling flow to heat exchanger 11 body through down-comer 10, circulates successively.Boiler smoke is by the heat exchanger 11 in flue 1, and temperature declines about 40 DEG C, and residual heat from boiler fume obtains good utilization.
Certain above-mentioned explanation is not limitation of the utility model; the utility model is also not limited only to above-mentioned citing; the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also belong to protection domain of the present utility model.
Claims (6)
1. a residual heat from boiler fume utilizes system, comprise flue (1), circulating pump (2), tedge (3), condensed water water inlet pipe (4), booster pump (5), condensed water control valve (6), condensed water outlet pipe (7), drum (8), heat exchanger control valve (9), down-comer (10) and heat exchanger (11), it is characterized in that: heat exchanger (11) is arranged in flue (1), circulating pump (2) is arranged on tedge (3), one end of tedge (3) is connected with the delivery port of heat exchanger (11), the other end of tedge (3) is connected with the water inlet of drum (8), heat exchanger control valve (9) is arranged on down-comer (10), one end of down-comer (10) is connected with the water inlet of heat exchanger (11), and the other end of down-comer (10) is connected with drum (8) delivery port, booster pump (5) is arranged on condensed water water inlet pipe (4), condensed water control valve (6) is arranged on condensed water water inlet pipe (4), condensed water water inlet pipe (4) end is connected with drum (8), and the end of condensed water outlet pipe (7) is connected with drum (8).
2. a kind of residual heat from boiler fume according to claim 1 utilizes system, it is characterized in that: described heat exchanger (11) is pipe heat exchanger, and its material is stainless steel.
3. a kind of residual heat from boiler fume according to claim 1 utilizes system, it is characterized in that: the medium in described heat exchanger (11) is demineralized water.
4. a kind of residual heat from boiler fume according to claim 1 utilizes system, it is characterized in that: seal between the delivery port of described heat exchanger (11) and tedge (3), seal between the water inlet of heat exchanger (11) and down-comer (10).
5. a kind of residual heat from boiler fume according to claim 1 utilizes system, it is characterized in that: seal between the water inlet of described drum (8) and tedge (3), seal between the delivery port of drum (8) and down-comer (10), seal between drum (8) and condensed water water inlet pipe (4), seal between drum (8) and condensed water outlet pipe (7).
6. a kind of residual heat from boiler fume according to claim 1 utilizes system, it is characterized in that: parallel between described tedge (3) with down-comer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182812.2U CN204534541U (en) | 2015-03-28 | 2015-03-28 | A kind of residual heat from boiler fume utilizes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182812.2U CN204534541U (en) | 2015-03-28 | 2015-03-28 | A kind of residual heat from boiler fume utilizes system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204534541U true CN204534541U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520182812.2U Expired - Fee Related CN204534541U (en) | 2015-03-28 | 2015-03-28 | A kind of residual heat from boiler fume utilizes system |
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| Country | Link |
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| CN (1) | CN204534541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120632A (en) * | 2016-02-25 | 2017-09-01 | 通用电器技术有限公司 | System and method for preheating waste heat recovery steam generator |
-
2015
- 2015-03-28 CN CN201520182812.2U patent/CN204534541U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120632A (en) * | 2016-02-25 | 2017-09-01 | 通用电器技术有限公司 | System and method for preheating waste heat recovery steam generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160328 |
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| CF01 | Termination of patent right due to non-payment of annual fee |