CN203223905U - Exhaust device and anti-wear device of flue gas waste heat high-efficiency heat exchanger - Google Patents
Exhaust device and anti-wear device of flue gas waste heat high-efficiency heat exchanger Download PDFInfo
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- CN203223905U CN203223905U CN 201320095772 CN201320095772U CN203223905U CN 203223905 U CN203223905 U CN 203223905U CN 201320095772 CN201320095772 CN 201320095772 CN 201320095772 U CN201320095772 U CN 201320095772U CN 203223905 U CN203223905 U CN 203223905U
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- flue gas
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Abstract
The utility model provides an exhaust device and an anti-wear device of a flue gas waste heat high-efficiency heat exchanger. A heater of the flue gas waste heat high-efficiency heat exchanger is provided with a water inlet and a water outlet; a flue gas heat exchange device is arranged in a flue of the flue gas waste heat high-efficiency heat exchanger; a plurality of rows of heat transfer pipes are arranged in the flue gas heat exchange device; and the heat transfer pipes are connected with the heater by pipelines. The utility model is characterized in that the top part of the heater is provided with the exhaust device; the exhaust device comprises a high-position outlet pipe connected with the heater; the high-position outlet pipe is connected with an exhaust pipe; air relief valves are connected in series between the high-position outlet pipe and the exhaust pipe. All rows of the heat transfer pipes are parallel with each other; an anti-wear pipe which is equal to each heat transfer pipe in diameter is arranged in front of the direction of each row of heat transfer pipes, which faces towards a flue gas flow direction; and the outer side of each anti-wear pipe, which towards the flue gas flow direction, is provided with an arc-shaped anti-wear tile. According to the exhaust device and the anti-wear device of the flue gas waste heat high-efficiency heat exchanger provided by the utility model, the pipelines can be prevented from being corroded by oxygen and other gases, and an anti-wear effect is exerted on surfaces of the heat transfer pipes.
Description
Technical field
The utility model belongs to a kind of boiler plant, relates in particular to a kind of architecture advances of the fume afterheat high-performance heat exchanger that boiler is used.
Background technology
The fuel heat that discharges that burns in boiler can all not be employed, and will produce part loss inevitably.Wherein flue gas loss is one maximum in every heat loss.The exhaust gas temperature of boiler uses the boiler of high-sulfur fuel generally at 120～140 ℃, and exhaust gas temperature is at 150 ℃, and individual other exhaust gas temperature can be up to 180～200 ℃.As seen boiler exhaust gas is the very big waste heat sources of potentiality.How to reduce smoke discharging residual heat, the heat loss that reducing discharges fume brings becomes one of subject matter of boiler technology personnel research.It is multiple to utilize the mode of smoke discharging residual heat to have at present, but comparative maturity and the economizer of increasing heat exchange area is effectively arranged and install smoke heat replacing device additional.Have advantages such as easy for installation, that the retrofit work amount is little though increase the economizer heat exchange area, be subjected to the restriction of boiler circuit and air and gas system, and it is just comparatively flexible to install smoke heat replacing device additional.
The fume afterheat high-performance heat exchanger is contained in boiler tail, and structure is similar to general economizer, and its water side is connected in the low-pressure section of Steam Turbine Regenerative System, condensate water absorbs smoke exhaust heat in heat exchanger, reduce exhaust gas temperature, and self is heated, and returns the low-pressure heater system after the rising temperature again.The effect of its instead of part low-pressure heater is a part of thermodynamic system of steam tur.Adopt the fume afterheat high-performance heat exchanger will squeeze the regenerative steam of part steam turbine, under the constant situation of steam turbine throttle flow, this squeezes to draw gas and will return steam turbine from extraction opening and continue expansion working.Therefore, under the constant situation of Fuel Consumption, can obtain electric work more, improve the economy of device.
Therefore, the fume afterheat high-performance heat exchanger uses in a large number in the industrial smoke field in recent years, and it can realize the reduction significantly of exhaust gas temperature, recycles the partial fume heat, and economic benefit is obvious.But it is in service in the reality heating; because in the existing smoke gas afterheat heat exchanger; water back is closed cycle; no exhaust apparatus; gases such as the oxygen that dissolves in the water, hydrogen can be overflowed from water; make pipeline generation chemical attack easily, abrasionproof is designed to install wearing-resistant tile additional at first row's heat-transfer pipe windward side simultaneously, and fly ash granule can cause wearing and tearing to heated surface bundle in the flue gas.
The utility model content
The utility model provides a kind of exhaust apparatus and shoe of fume afterheat high-performance heat exchanger, its objective is to solve the shortcoming that prior art exists, and prevents that pipeline from oxygen corrosion and other gas attack occurring and tube surface is played the abrasionproof effect.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of exhaust apparatus of fume afterheat high-performance heat exchanger and shoe, its heater has water inlet and delivery port, in its flue smoke heat replacing device is set, be provided with number row heat-transfer pipe in the smoke heat replacing device, heat-transfer pipe and heater is characterized in that with pipeline in succession: the heater top is provided with exhaust apparatus, and exhaust apparatus comprises the high-order fairlead that is connected with heater, high-order fairlead is connected with blast pipe, is in series with the venting valve between high-order fairlead and the blast pipe.
Two or more venting valves of can between high-order fairlead and blast pipe, connecting.
The blast pipe top has opening towards the elbow of below.
Each is arranged heat-transfer pipe and is parallel to each other, and meeting to the place ahead of the direction of flue gas flow direction of every row's heat-transfer pipe is provided with an abrasionproof pipe identical with the heat-transfer pipe diameter, and the outside of the direction of abrasionproof Guan Yingxiang flue gas flow direction is provided with the wearing-resistant tile of arc.
Usefulness of the present utility model is:
Corrosion and the wear problem of the utility model in order to solve flue gas heat exchange device in service by two (or a plurality of) air bleeding valves are installed on heater top, constantly discharged oxygen and other gas of overflowing in the system, prevents oxygen corrosion and other gas attack; The flue gas heat exchange device sets up a row the preset abrasionproof pipe pipe the same with the heat-transfer pipe pipeline to arrange at flue entrance, in face of the flue gas direction stainless steel wearing-resistant tile is housed on the abrasionproof pipe, can directly stop washing away of flue gas particle like this, plays the abrasionproof effect.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model system construction drawing;
Fig. 2 is the utility model exhaust apparatus schematic diagram;
Fig. 3 is the utility model abrasionproof scenario-frame schematic diagram.
The specific embodiment
As shown in Figure 1, the utility model is a kind of improvement of fume afterheat high-performance heat exchanger, the heater 100 of fume afterheat high-performance heat exchanger has water inlet and delivery port, be parallel with the combination of two cover supply-water pumps and motor-driven valve between water inlet and the water tank 1, supply-water pump 2 and motor-driven valve 8, supply-water pump 3 and motor-driven valve 9, two cover supply-water pumps and motor-driven valve are standby each other, delivery port is connected with service pipe 6, supply with user's hot water or steam, smoke heat replacing device 4 is set in the flue 7, be provided with number row heat-transfer pipe 40 in the smoke heat replacing device 4, heat-transfer pipe 40 and heater 100 are with pipeline in succession.
During use, cold water enters heater 100 through the combination of supply-water pump and motor-driven valve from the water inlet of heater 100 from water tank 1, flow to heat-transfer pipe 40 from heater 100 again, flue gas is mobile (arrow among Fig. 1, Fig. 3 is flue gas flow direction) in flue 7, flue gas heat exchanges to the cold water in the heat-transfer pipe 40, flow back to heater 100 after it is heated up, the delivery port from heater 100 flows to service pipe 6 again.
One of improvement of the present utility model is to be provided with exhaust apparatus 5 at the top of heater 100, exhaust apparatus 5 as shown in Figure 2, comprise the high-order fairlead 54 that is connected with heater 100, high-order fairlead 54 is connected with blast pipe 51, is in series with two valves 52 of exitting, the 53(valve of exitting more than two of also can connecting between high-order fairlead 54 and the blast pipe 51).During use, discharge through high-order fairlead 54, venting valve 52,53, blast pipe 51 again after gases such as the oxygen that dissolves in the water, hydrogen can be overflowed from water, avoid Corrosion of Pipeline.Venting valve 52,53 is standby each other, can accurately adjust capacity.Blast pipe 51 tops have opening towards the elbow 55 of vertical lower.Opening elbow 55 vertically downward can avoid rain, snow and dust to enter pipeline.
Two of improvement of the present utility model is as shown in Figure 3, each is arranged heat-transfer pipe 40 and is set to be parallel to each other, meeting to the place ahead of the direction of flue gas flow direction of every row's heat-transfer pipe 40 is provided with an abrasionproof pipe 41 identical with heat-transfer pipe 40 diameters, abrasionproof pipe 41 and heat-transfer pipe 40 equal diameters, etc. wall thickness, be furnished with the arc wearing-resistant tile 42 of stainless steel in face of flue gas flow direction in the outside of abrasionproof pipe 41, flue gas stream at first washes away wearing-resistant tile 42 and abrasionproof pipe 41, has prolonged the service life of heat-transfer pipe 40.
The emergent gas in the smoke gas afterheat heat exchanger in service can effectively be assembled and discharge to the utility model by at heater 100 tops exhaust apparatus 5 being set, and overcomes in the existing smoke gas afterheat heat exchanger technology gas such as oxygen and hydrogen to the Corrosion of Pipeline problem.Two venting valves 52,53 or the valve of exitting are set more, are convenient to regulate and the control capacity.By presetting abrasionproof pipe 41 and wearing-resistant tile 42, alleviated the ash cutting to heat-transfer pipe 40, effectively the service life of prolong smoke afterheat heat exchanger.
Claims (4)
1. the exhaust apparatus of a fume afterheat high-performance heat exchanger and shoe, its heater has water inlet and delivery port, in its flue smoke heat replacing device is set, be provided with number row heat-transfer pipe in the smoke heat replacing device, heat-transfer pipe and heater is characterized in that with pipeline in succession: the heater top is provided with exhaust apparatus, and exhaust apparatus comprises the high-order fairlead that is connected with heater, high-order fairlead is connected with blast pipe, is in series with the venting valve between high-order fairlead and the blast pipe.
2. the exhaust apparatus of a kind of fume afterheat high-performance heat exchanger as claimed in claim 1 and shoe is characterized in that: two or more venting valves of connecting between high-order fairlead and blast pipe.
3. the exhaust apparatus of a kind of fume afterheat high-performance heat exchanger as claimed in claim 1 and shoe, it is characterized in that: the blast pipe top has opening towards the elbow of below.
4. the exhaust apparatus of a kind of fume afterheat high-performance heat exchanger as claimed in claim 1 and shoe, it is characterized in that: each is arranged heat-transfer pipe and is parallel to each other, meeting to the place ahead of the direction of flue gas flow direction of every row's heat-transfer pipe is provided with an abrasionproof pipe identical with the heat-transfer pipe diameter, and the outside of the direction of abrasionproof Guan Yingxiang flue gas flow direction is provided with the wearing-resistant tile of arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320095772 CN203223905U (en) | 2013-03-01 | 2013-03-01 | Exhaust device and anti-wear device of flue gas waste heat high-efficiency heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320095772 CN203223905U (en) | 2013-03-01 | 2013-03-01 | Exhaust device and anti-wear device of flue gas waste heat high-efficiency heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223905U true CN203223905U (en) | 2013-10-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320095772 Expired - Fee Related CN203223905U (en) | 2013-03-01 | 2013-03-01 | Exhaust device and anti-wear device of flue gas waste heat high-efficiency heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880089A (en) * | 2015-05-28 | 2015-09-02 | 江苏嘉德宏益环保节能科技有限公司 | Intelligent flue energy recycling system |
| CN107036484A (en) * | 2017-05-12 | 2017-08-11 | 江苏龙净节能科技有限公司 | A kind of abrasionproof drainage system for heat exchanger |
-
2013
- 2013-03-01 CN CN 201320095772 patent/CN203223905U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880089A (en) * | 2015-05-28 | 2015-09-02 | 江苏嘉德宏益环保节能科技有限公司 | Intelligent flue energy recycling system |
| CN107036484A (en) * | 2017-05-12 | 2017-08-11 | 江苏龙净节能科技有限公司 | A kind of abrasionproof drainage system for heat exchanger |
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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: 20131002 Termination date: 20150301 |
|
| EXPY | Termination of patent right or utility model |