CN202092110U - Waste heat recovery device for boiler and the boiler with the same - Google Patents

Waste heat recovery device for boiler and the boiler with the same Download PDF

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Publication number
CN202092110U
CN202092110U CN201120194597XU CN201120194597U CN202092110U CN 202092110 U CN202092110 U CN 202092110U CN 201120194597X U CN201120194597X U CN 201120194597XU CN 201120194597 U CN201120194597 U CN 201120194597U CN 202092110 U CN202092110 U CN 202092110U
Authority
CN
China
Prior art keywords
boiler
water tank
water
heat
endothermic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201120194597XU
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Chinese (zh)
Inventor
王轰
牟伟丽
孙大鹏
王顺江
柯昌松
张道旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PENGLAI HUIYANG FOOD CO Ltd
Original Assignee
PENGLAI HUIYANG FOOD CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PENGLAI HUIYANG FOOD CO Ltd filed Critical PENGLAI HUIYANG FOOD CO Ltd
Priority to CN201120194597XU priority Critical patent/CN202092110U/en
Application granted granted Critical
Publication of CN202092110U publication Critical patent/CN202092110U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a waste heat recovery package for a boiler; the waste heat recovery package for a boiler comprises a return water tank of boiler, a heat-absorption water tank arranged on the flue, wherein the heat-absorption water tank is provided with a flue channel which extends from the bottom of the heat-absorption water tank to the top of the heat-absorption water tank. The heat-absorption water tank is internally provided with a plurality of heat-absorption steel pipes; the external side wall of the heat-absorption water tank is provided with a water inlet and a water outlet; the water inlet and the water outlet are respectively connected with the water return tank of the boiler via pipelines. According to the utility model, the secondary recovery utilization of the waste heat of the boiler is realized, the water intake temperature of the boiler is raised greatly, and the purpose of saving coal, saving energy and protecting environment is achieved; and the thermal efficiency of the boiler is improved, and meanwhile, the cost is reduced.

Description

Boiler afterheat recovering device and comprise the boiler of this device
Technical field
The utility model relates to a kind of boiler afterheat recovering device and comprises the boiler of this device.
Background technology
The conventional boiler waste heat recovery utilizes and is mainly reflected on the economizer, economizer is the part of boiler, and it is to be clipped in comprising of boiler flue the inside of a lot of crooked back and forth pipelines, and there is the water circulation pipeline the inside, there is high-temperature flue gas the pipeline outside, finish heat exchange when high-temperature flue gas during through piping, water is heated up, flue-gas temperature can decrease, water through heating enters boiler again, like this, the feed temperature of boiler can improve, thereby reaches the purpose of province's coal.Briefly, economizer is exactly the equipment that utilizes boiler tail flue gas waste heat heated feed water.But, still quite high through the flue-gas temperature behind the economizer, can reach 70-80 degree centigrade, this part gas energy just wastes.
Use so need utilize the waste heat of boiler tail flue gas to reclaim the heating boiler of feeding once more, reach energy-conservation purpose.
The utility model content
Technical problem to be solved in the utility model provides a kind of boiler afterheat recovering device, realizes the secondary recovery of boiler afterheat is utilized again, and energy-conserving and environment-protective effectively are to overcome deficiency as described above in the prior art.
The technical scheme that the utility model solves the problems of the technologies described above is as follows:
A kind of boiler afterheat recovering device comprises boiler blow-down water case and the endothermic water tank who is installed on the flue; Described endothermic water tank is provided with the exhaust gases passes that is extended to the endothermic water tank top by the endothermic water tank bottom, endothermic water tank inside is provided with a plurality of heat absorption steel pipes, endothermic water tank's lateral wall is provided with water inlet and delivery port, and described water inlet is connected with the boiler blow-down water case by pipeline respectively with delivery port.
A kind of boiler comprises the economizer and the air-introduced machine that are installed on the flue, also comprises above-mentioned boiler afterheat recovering device, and described boiler afterheat recovering device is installed between economizer and the air-introduced machine.
The beneficial effects of the utility model are: realize the secondary recovery of boiler afterheat is utilized again, greatly improved the boiler feed water temperature, reach the purpose of province's coal, energy-conserving and environment-protective, also reduced cost when improving boiler thermal output.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, described water inlet connects a water circulating pump by pipeline, and the other end of water circulating pump is connected with boiler blow-down water case delivery port by pipeline, and described delivery port is connected with boiler blow-down water case water inlet by pipeline.
Adopt the beneficial effect of above-mentioned further scheme to be: between endothermic water tank and boiler blow-down water case, water circulating pump to be installed, hot water in the endothermic water tank in time can be delivered in the boiler blow-down water case, guarantee that the water in the endothermic water tank is in flow regime, ceaselessly is delivered to endothermic water tank's heat in the boiler blow-down water case.
Further, described endothermic water tank's top end face is provided with relief valve.
Adopt the beneficial effect of above-mentioned further scheme to be: along with the reinforcement of boiler combustion, the raising of flue-gas temperature, the very easily vaporization of being heated of the water in the endothermic water tank makes the endothermic water tank be in overtemperature, high pressure conditions, the endothermic water tank is expanded rise to split.The design and installation relief valve is to avoid this type of circumstances from happening.
Description of drawings
Fig. 1 is the utility model structural representation;
In the accompanying drawing, the list of parts of each label representative is as follows:
1, boiler blow-down water case, 2, the endothermic water tank, 3, exhaust gases passes, 4, the heat absorption steel pipe, 5, water inlet, 6, delivery port, 7, water circulating pump, 8, boiler blow-down water case delivery port, 81, boiler blow-down water case water inlet, 9, relief valve.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
As shown in Figure 1, the described boiler afterheat recovering device of the utility model embodiment comprises boiler blow-down water case 1 and the endothermic water tank 2 who is installed on the flue; Described endothermic water tank 2 is provided with the exhaust gases passes 3 that is extended to the endothermic water tank top by the endothermic water tank bottom, endothermic water tank 2 inside are provided with a plurality of heat absorption steel pipes 4, endothermic water tank's 2 lateral walls are provided with water inlet 5 and delivery port 6, and described water inlet 5 is connected with described boiler blow-down water case 1 by pipeline respectively with delivery port 6.
Described water inlet 5 connects a water circulating pump 7 by pipeline, and the other end of water circulating pump 7 is connected with boiler blow-down water case delivery port 8 by pipeline, and described delivery port 6 is connected with boiler blow-down water case water inlet 81 by pipeline.Water circulating pump 7 can in time be delivered to endothermic water tank 2 hot water in the boiler blow-down water case 1, guarantees that the water in the endothermic water tank 2 is in flow regime, ceaselessly endothermic water tank 2 heat is delivered in the boiler blow-down water case 1.
Described endothermic water tank's 2 top end face is provided with relief valve 9.
Along with the reinforcement of boiler combustion, the raising of flue-gas temperature, the very easily vaporization of being heated of the water in the endothermic water tank 2 makes the endothermic water tank be in overtemperature, high pressure conditions, and relief valve 9 can be avoided endothermic water tank 2 to expand to rise splitting.
A kind of boiler comprises the economizer and the air-introduced machine that are installed on the flue, also comprises the described boiler afterheat recovering device of the utility model embodiment, and described boiler afterheat recovering device is installed between described economizer and the described air-introduced machine.
When high-temperature flue gas passes through endothermic water tank 2 exhaust gases passes 3, heat absorption steel pipe 4 in the endothermic water tank 2 absorbs heat and is transmitted to endothermic water tank 2, make the water heating in the endothermic water tank 2, the hot water in the endothermic water tank 2 in time is delivered to boiler blow-down water case 1 by delivery port 6, continue to utilize.
Through measuring, the water inlet water temperature in the endothermic water tank 2 is 10 ℃, and the water outlet water temperature is 23 ℃, on measurement data, has greatly improved boiler feed temperature, reaches the purpose of province's coal, energy-conserving and environment-protective.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (4)

1. a boiler afterheat recovering device comprises boiler blow-down water case (1), it is characterized in that: also comprise the endothermic water tank (2) who is installed on the flue; Described endothermic water tank (2) is provided with the exhaust gases passes (3) that is extended to the endothermic water tank top by the endothermic water tank bottom, endothermic water tank (2) inside is provided with heat absorption steel pipe (4), endothermic water tank (2) lateral wall is provided with water inlet (5) and delivery port (6), and described water inlet (5) is connected with described boiler blow-down water case (1) by pipeline respectively with delivery port (6).
2. boiler afterheat recovering device according to claim 1, it is characterized in that: described water inlet (5) connects a water circulating pump (7) by pipeline, the other end of water circulating pump (7) is connected with boiler blow-down water case delivery port (8) by pipeline, and described delivery port (6) is connected with boiler blow-down water case water inlet (81) by pipeline.
3. boiler afterheat recovering device according to claim 1 is characterized in that: described endothermic water tank's (2) top end face is provided with relief valve (9).
4. a boiler comprises the economizer and the air-introduced machine that are installed on the flue, it is characterized in that: comprise that also described boiler afterheat recovering device is installed between described economizer and the described air-introduced machine as each described boiler afterheat recovering device of claim 1~3.
CN201120194597XU 2011-06-10 2011-06-10 Waste heat recovery device for boiler and the boiler with the same Expired - Lifetime CN202092110U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120194597XU CN202092110U (en) 2011-06-10 2011-06-10 Waste heat recovery device for boiler and the boiler with the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120194597XU CN202092110U (en) 2011-06-10 2011-06-10 Waste heat recovery device for boiler and the boiler with the same

Publications (1)

Publication Number Publication Date
CN202092110U true CN202092110U (en) 2011-12-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120194597XU Expired - Lifetime CN202092110U (en) 2011-06-10 2011-06-10 Waste heat recovery device for boiler and the boiler with the same

Country Status (1)

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CN (1) CN202092110U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287805A (en) * 2011-06-10 2011-12-21 蓬莱汇洋食品有限公司 Boiler exhaust heat recovery device
CN104226073A (en) * 2013-06-13 2014-12-24 烟台龙源电力技术股份有限公司 Demisting dedusting device for flue gas treatment and flue gas demisting dedusting system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287805A (en) * 2011-06-10 2011-12-21 蓬莱汇洋食品有限公司 Boiler exhaust heat recovery device
CN104226073A (en) * 2013-06-13 2014-12-24 烟台龙源电力技术股份有限公司 Demisting dedusting device for flue gas treatment and flue gas demisting dedusting system

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GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20111228

CX01 Expiry of patent term