CN205678652U - A kind of pressure regulation heat-exchange system of low-level (stack-gas) economizer - Google Patents
A kind of pressure regulation heat-exchange system of low-level (stack-gas) economizer Download PDFInfo
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- CN205678652U CN205678652U CN201620585616.4U CN201620585616U CN205678652U CN 205678652 U CN205678652 U CN 205678652U CN 201620585616 U CN201620585616 U CN 201620585616U CN 205678652 U CN205678652 U CN 205678652U
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Abstract
The utility model relates to heat exchanger applications field, particularly relate to the pressure regulation heat-exchange system of a kind of low-level (stack-gas) economizer, including low-level (stack-gas) economizer and heat medium system, low-level (stack-gas) economizer side is for by the exhaust gases passes of flue gas, low-level (stack-gas) economizer opposite side is heat medium passage, the heating agent derived by heat medium system, heat medium passage front end is provided with pressure-reducing valve, the pressure regulation heat-exchange system of the low-level (stack-gas) economizer that the utility model relates to, heating agent step-down to the heat medium passage of input low-level (stack-gas) economizer, prevent that pressure is excessive causes damage to low-level (stack-gas) economizer because of heating agent operation, add the operating reliability of low-level (stack-gas) economizer；Use the flow of flue gas runner of straight-through runner, it is therefore prevented that the economizer internal blocking that flue gas laying dust causes, beneficially equipment is properly functioning simultaneously.
Description
Technical field
The utility model relates to heat exchanger applications field, particularly relates to the pressure regulation heat-exchange system of a kind of low-level (stack-gas) economizer.
Background technology
Low-level (stack-gas) economizer is mounted to a kind of device for recovery waste heat for the boiler back end ductwork, and it absorbs low-temperature flue gas
Heat, reduces the exhaust gas temperature of flue gas, saves the energy, improve efficiency, so referred to as low-level (stack-gas) economizer.
Low-level (stack-gas) economizer passes through heating agent and flue gas heat exchange, is flue gas cool-down, and heating agent absorbs the heat of flue gas and is used for other
Heat supply occasion and realize waste heat recovery, limited by heating agent application operating mode, when heating agent hypertonia, can exceed low-level (stack-gas) economizer permit
Permitted operation pressure, now heating agent cannot be introduced directly into low-level (stack-gas) economizer and carry out heat exchange with flue gas.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of to being passed through
The pressure regulation heat-exchange system of the low-level (stack-gas) economizer of the heating agent pressure regulation of economizer heat medium passage.
The utility model is to be achieved by the following technical programs:
A kind of pressure regulation heat-exchange system of low-level (stack-gas) economizer, including low-level (stack-gas) economizer and heat medium system, low-level (stack-gas) economizer side
For by the exhaust gases passes of flue gas, low-level (stack-gas) economizer opposite side is heat medium passage, the heating agent derived by heat medium system, and heating agent leads to
Front end, road is provided with pressure-reducing valve.
The heat medium passage rear end of described low-level (stack-gas) economizer is provided with booster pump, to the heating agent supercharging derived from low-level (stack-gas) economizer,
Heating agent after supercharging leads back to heat medium system.
Described low-level (stack-gas) economizer is straight channel plank frame heat exchanger, the heat transfer unit of described straight channel plank frame heat exchanger
Part is corrugated cardboard sheet, and the fume side ripple's depth of described corrugated cardboard sheet is less than flue gas side sheet room runner, and described plate groups poststack exists
Fume side forms contactless board-like straight-through runner.
The beneficial effects of the utility model are:
The pressure regulation heat-exchange system of the low-level (stack-gas) economizer that the utility model relates to, by leading to the heating agent of input low-level (stack-gas) economizer
The heating agent step-down in road, makes the heating agent after step-down meet low-level (stack-gas) economizer operation pressure requirements, prevents because heating agent pressure is excessive to low
Temperature economizer causes damage, adds the service life of equipment, is pressurizeed by the heating agent after heat exchanging, after pressurization simultaneously
Heating agent returns original heat medium system and does not affect the stability operation of original heat medium system；Additionally, by using straight-through runner
Flow of flue gas runner, it is therefore prevented that the economizer internal blocking that flue gas laying dust causes, beneficially equipment is properly functioning, in addition, also big
Width improves the heat transfer efficiency of low-level (stack-gas) economizer.
Brief description
Fig. 1 is attachment structure schematic diagram of the present utility model.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical solution of the utility model, below in conjunction with the accompanying drawings
The utility model is described in further detail with most preferred embodiment.
As it can be seen, the utility model includes low-level (stack-gas) economizer and heat medium system, low-level (stack-gas) economizer side is for passing through flue gas
Exhaust gases passes, low-level (stack-gas) economizer opposite side is heat medium passage, the heating agent derived by heat medium system, and heat medium passage front end is provided with
Pressure-reducing valve.
In heat medium system, the heating agent of circulation is after the depressurization of pressure-reducing valve, enters the heat medium passage of low-level (stack-gas) economizer,
In guarantee low-level (stack-gas) economizer, the pressure of heating agent is within its pressure-bearing scope, prevents from producing low-level (stack-gas) economizer because heating agent pressure is excessive
Impact.
Preferably, the heat medium passage rear end of low-level (stack-gas) economizer is provided with booster pump, increases the heating agent derived from low-level (stack-gas) economizer
Pressure, the heating agent after supercharging leads back to heat medium system so that original heat medium system stable circulation.
Further, in preferred embodiment of the present utility model, low-level (stack-gas) economizer is straight channel plank frame heat exchanger, institute
The heat transfer element stating straight channel plank frame heat exchanger is corrugated cardboard sheet, and the fume side ripple's depth of described corrugated cardboard sheet is less than cigarette
Gas side sheet room runner, described plate groups poststack forms contactless board-like straight-through runner in fume side.
Owing to flow of flue gas runner is straight-through runner, runner is held essentially constant along the circulating direction of flue gas, disappears again simultaneously
Except the impact of contact, thus from smoke inlet to outlet, field of flow keeps consistent substantially, eliminates particulate matter blocking and incrustation
Precondition, also just can solve the laying dust problem of flue gas up hill and dale.
The above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from the utility model principle, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (3)
1. the pressure regulation heat-exchange system of a low-level (stack-gas) economizer, it is characterised in that include low-level (stack-gas) economizer and heat medium system, low temperature saves
Coal device side is for by the exhaust gases passes of flue gas, and low-level (stack-gas) economizer opposite side is heat medium passage, the heat being derived by heat medium system
Matchmaker, heat medium passage front end is provided with pressure-reducing valve.
2. the pressure regulation heat-exchange system of a kind of low-level (stack-gas) economizer according to claim 1, it is characterised in that described low temperature saves coal
The heat medium passage rear end of device is provided with booster pump, and to the heating agent supercharging derived from low-level (stack-gas) economizer, the heating agent after supercharging leads back to heating agent
System.
3. the pressure regulation heat-exchange system of a kind of low-level (stack-gas) economizer according to claim 1, it is characterised in that described low temperature saves coal
Device is straight channel plank frame heat exchanger, and the heat transfer element of described straight channel plank frame heat exchanger is corrugated cardboard sheet, described ripple
The fume side ripple's depth of card piece is less than flue gas side sheet room runner, and described plate groups poststack forms contactless board-like in fume side
Straight-through runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620585616.4U CN205678652U (en) | 2016-06-14 | 2016-06-14 | A kind of pressure regulation heat-exchange system of low-level (stack-gas) economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620585616.4U CN205678652U (en) | 2016-06-14 | 2016-06-14 | A kind of pressure regulation heat-exchange system of low-level (stack-gas) economizer |
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| CN205678652U true CN205678652U (en) | 2016-11-09 |
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| CN201620585616.4U Active CN205678652U (en) | 2016-06-14 | 2016-06-14 | A kind of pressure regulation heat-exchange system of low-level (stack-gas) economizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504477A (en) * | 2016-06-14 | 2017-12-22 | 天津华赛尔传热设备有限公司 | A kind of pressure regulation heat-exchange system of low-level (stack-gas) economizer |
-
2016
- 2016-06-14 CN CN201620585616.4U patent/CN205678652U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504477A (en) * | 2016-06-14 | 2017-12-22 | 天津华赛尔传热设备有限公司 | A kind of pressure regulation heat-exchange system of low-level (stack-gas) economizer |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |