CN208458562U - Coal-burning boiler Waste Heat Recovery energy saver - Google Patents
Coal-burning boiler Waste Heat Recovery energy saver Download PDFInfo
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- CN208458562U CN208458562U CN201820970728.0U CN201820970728U CN208458562U CN 208458562 U CN208458562 U CN 208458562U CN 201820970728 U CN201820970728 U CN 201820970728U CN 208458562 U CN208458562 U CN 208458562U
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- heat exchanger
- flash tank
- coal
- waste heat
- burning boiler
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Abstract
The utility model relates to a kind of coal-burning boiler Waste Heat Recovery energy savers, including flash tank, finned heat exchanger, vapour compression machine, moisturizing preheating heat exchanger and vacuum pump, the heating agent entrance and fire coal tail gas pipeline connection of finned heat exchanger, the flow channel for liquids to form circulation closure is connected between flash tank and the refrigerant flow path of finned heat exchanger by circulating pump, the refrigerant inlet of moisturizing preheating heat exchanger is connected to water pipe, refrigerant exit is connected to flash tank, the heating agent process and external source remaining hot water pipeline connection of moisturizing preheating heat exchanger, the steam (vapor) outlet of flash tank is connected to vapour compression machine, flash tank is vacuumized by vacuum pump.The utility model can be realized the high efficiente callback to coal combustion exhaust waste heat using the steam of the simultaneously high condition of output for industrial utilization, and efficiency of energy utilization is high, advantageously reduces production cost.
Description
Technical field
The utility model belongs to the technical field of coal-fired boiler tail gas processing, returns more particularly to a kind of coal-burning boiler waste heat
Receive energy saver.
Background technique
Existing coal-burning boiler waste heat recovery apparatus generally uses the sky of the waste-heat combustion chamber of heat exchanger recycling tail gas
The moisturizing of gas or heating boiler is to achieve the purpose that energy regenerating utilizes, the former uses gas-gas heat exchanger, and there are heat transfer efficiencys
It is low, it takes up a large area, energy recovery efficiency is low, and the low disadvantage of recycling energy condition, the latter uses gas-liquid heat-exchange, because of two sides
The difference of flow is excessive, and the little energy that can be recycled, a large amount of waste heats are wasted.The side of both gas fired-boiler waste heat from tail gas recycling
Formula can only generally recycle the 7-8% of tail gas energy.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of coal-burning boiler Waste Heat Recovery energy saver, realizations pair
The high efficiente callback of coal combustion exhaust waste heat utilizes and the steam of the high condition of output.
Technical solution adopted by the utility model to solve its technical problems is provide a kind of coal-burning boiler Waste Heat Recovery section
Energy device, including flash tank, finned heat exchanger, vapour compression machine, moisturizing preheating heat exchanger and vacuum pump, the heat of finned heat exchanger
Matchmaker's entrance and fire coal tail gas pipeline connection, are connected to be formed and follow between flash tank and the refrigerant flow path of finned heat exchanger by circulating pump
The flow channel for liquids of ring closure, the refrigerant inlet of moisturizing preheating heat exchanger is connected to water pipe, refrigerant exit is connected to flash tank,
The heating agent process and external source remaining hot water pipeline connection of moisturizing preheating heat exchanger, the steam (vapor) outlet and vapour compression machine of flash tank connect
Logical, flash tank is vacuumized by vacuum pump.
The finned heat exchanger is obliquely installed with horizontal direction, and the finned heat exchanger bottom is close to the position that heating agent exports
Equipped with tail gas dirt evacuation port.
The tilt angle of the finned heat exchanger is set as 3~5 °.
Pipeline between the refrigerant exit and flash tank of the moisturizing preheating heat exchanger passes through branch's water supply pipe and vapour pressure
The connection of contracting machine, branch's water supply pipe are equipped with the first pneumatic control valve, and the steam outlet of the vapour compression machine, which is equipped with, to be steamed
Vapour saturation degree on-line detector, first pneumatic control valve connect with vapo(u)rous degree on-line detector and according to the steamings of detection
The opening and closing of vapour saturation degree automatic control branch's water supply pipe.
Second pneumatic control valve is installed on the water pipe, the flash tank is equipped with the first liquid level on-line detector,
Second pneumatic control valve connect with the first liquid level on-line detector and is mended according to the liquid automatic control in detection flash tank
The opening and closing of water lines.
Knockout drum, the vacuum orifice and knockout drum of the flash tank are equipped between the flash tank and vacuum pump
Connection, the vacuum orifice of the knockout drum are connected to vacuum pump.
The condensate liquid outlet of the knockout drum is connected to by condensate liquid output pipe with water pipe.
The condensate output transistor road of the knockout drum is equipped with third pneumatic control valve, and the knockout drum is set
There is the second liquid level on-line detector, the third pneumatic control valve connect with the second liquid level on-line detector and according to detection gas-liquid
The opening and closing on the liquid automatic control condensate output transistor road in knockout drum.
The tail gas dirt evacuation port of the finned heat exchanger bottom is connected to by pipeline with knockout drum.
Beneficial effect
First, the characteristics of using flash tank compared with low-temperature evaporation, it can remain and be followed between flash tank and finned heat exchanger
The temperature of ring water is relatively low, so as to during being exchanged heat with tail gas, improve the heat exchange efficiency of waste heat from tail gas, from
And improve the utilization efficiency to waste heat in exhaust gas；
Second, the steam flashed, which is delivered to, to be carried out compressing the sensible heat temperature that steam can be improved and satisfies in vapour compression machine
And degree, the steam for exporting high condition are able to carry out industrial utilization, convert steam for the heat sources in fire coal tail gas and recycle,
Efficiency of energy utilization is improved, is also beneficial to reduce production cost；
Third, the condensed water that knockout drum generates can be recycled as moisturizing circulation, reduce the output of system effluent,
Resource is made full use of, cost is advantageously reduced.
Detailed description of the invention
Fig. 1 is the device flow chart of the utility model.
Specific embodiment
The present invention will be further illustrated below in conjunction with specific embodiments.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction
Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen
It please the appended claims limited range.
A kind of coal-burning boiler Waste Heat Recovery energy saver as shown in Figure 1, including flash tank, finned heat exchanger, vapour pressure
Contracting machine, moisturizing preheating heat exchanger, knockout drum and vacuum pump.
Finned heat exchanger is obliquely installed with horizontal direction, tilt angle be 5 °, heating agent arrival end upward, heating agent outlet end to
Under.The heating agent entrance and fire coal tail gas pipeline connection of finned heat exchanger.Finned heat exchanger bottom is set close to the position that heating agent exports
There is tail gas dirt evacuation port, the poisonous and harmful substances such as coal tar for including in tail gas settle after tail gas heat exchange cooling, Neng Goutong
Tail gas dirt evacuation port is crossed to discharge.
The flow channel for liquids to form circulation closure is connected between flash tank and the refrigerant flow path of finned heat exchanger by circulating pump.
The refrigerant inlet of moisturizing preheating heat exchanger is connected to water pipe, and water pipe is pumped by small pump, moisturizing preheating heat exchanger
Refrigerant exit be connected to flash tank.The heating agent process and external source remaining hot water pipeline connection of moisturizing preheating heat exchanger, utilize factory
The remaining hot water of generation preheats moisturizing, while can recycle to the residual heat resources of remaining hot water.Pacify on water pipe
Equipped with the second pneumatic control valve, flash tank is equipped with the first liquid level on-line detector, and the second pneumatic control valve and the first liquid level are online
Detector connects and according to the opening and closing of the liquid automatic control water pipe in detection flash tank.Using flash tank compared with low-temperature evaporation
The characteristics of, can remain that the temperature of recirculated water between flash tank and finned heat exchanger is relatively low, so as to tail
During gas is exchanged heat, the heat exchange efficiency of waste heat from tail gas is improved.
The steam (vapor) outlet of flash tank is connected to vapour compression machine, and the steam flashed is delivered in vapour compression machine and carries out
The sensible heat temperature of steam can be improved in compression.Pipeline between the refrigerant exit and flash tank of moisturizing preheating heat exchanger is mended by branch
Water pipe is connect with vapour compression machine, and branch's water supply pipe is equipped with the first pneumatic control valve, and the steam outlet of vapour compression machine is set
There is vapo(u)rous degree on-line detector, the first pneumatic control valve connect with vapo(u)rous degree on-line detector and according to the steaming of detection
The opening and closing of vapour saturation degree automatic control branch's water supply pipe.By the moisturizing into vapour compression machine, the saturation degree of output steam is improved,
The saturated vapor of this high temperature is able to carry out industrial utilization.
Flash tank is vacuumized by vacuum pump.Knockout drum is equipped between flash tank and vacuum pump, the pumping of flash tank is true
It eats dishes without rice or wine to be connected to knockout drum, the vacuum orifice of knockout drum is connected to vacuum pump.The condensate liquid of knockout drum is discharged
Mouth is connected to by condensate liquid output pipe with water pipe, and condensed water can be recycled as moisturizing circulation.Knockout drum
Condensate output transistor road is equipped with third pneumatic control valve, and knockout drum is equipped with the second liquid level on-line detector, third gas
Dynamic regulating valve is connect and defeated according to the liquid automatic control condensed water detected in knockout drum with the second liquid level on-line detector
The opening and closing of pipeline out.The tail gas dirt evacuation port of finned heat exchanger bottom is connected to by pipeline with knockout drum, when tail in water
Gas dirt focuses on again when reaching a certain concentration.
Claims (9)
1. a kind of coal-burning boiler Waste Heat Recovery energy saver, including flash tank, finned heat exchanger, vapour compression machine, moisturizing preheating
Heat exchanger and vacuum pump, it is characterised in that: the heating agent entrance and fire coal tail gas pipeline connection of the finned heat exchanger, the flash distillation
The flow channel for liquids to form circulation closure, the moisturizing preheating are connected between tank and the refrigerant flow path of finned heat exchanger by circulating pump
The refrigerant inlet of heat exchanger is connected to water pipe, refrigerant exit is connected to flash tank, the heating agent of the moisturizing preheating heat exchanger
Process and external source remaining hot water pipeline connection, the steam (vapor) outlet of the flash tank are connected to vapour compression machine, and the flash tank passes through
Vacuum pump vacuumizes.
2. a kind of coal-burning boiler Waste Heat Recovery energy saver according to claim 1, it is characterised in that: the fin heat exchange
Device is obliquely installed with horizontal direction, and the finned heat exchanger bottom is equipped with tail gas dirt evacuation port close to the position that heating agent exports.
3. a kind of coal-burning boiler Waste Heat Recovery energy saver according to claim 2, it is characterised in that: the fin heat exchange
The tilt angle of device is set as 3~5 °.
4. a kind of coal-burning boiler Waste Heat Recovery energy saver according to claim 1, it is characterised in that: the moisturizing preheating
Pipeline between the refrigerant exit and flash tank of heat exchanger is connect by branch's water supply pipe with vapour compression machine, branch's moisturizing
Pipe is equipped with the first pneumatic control valve, and the steam outlet of the vapour compression machine is equipped with vapo(u)rous degree on-line detector, institute
The first pneumatic control valve is stated to connect with vapo(u)rous degree on-line detector and automatically control branch according to the vapo(u)rous degree of detection
The opening and closing of water supply pipe.
5. a kind of coal-burning boiler Waste Heat Recovery energy saver according to claim 1, it is characterised in that: the water pipe
On the second pneumatic control valve is installed, the flash tank is equipped with the first liquid level on-line detector, second pneumatic control valve with
First liquid level on-line detector connects and according to the opening and closing of the liquid automatic control water pipe in detection flash tank.
6. a kind of coal-burning boiler Waste Heat Recovery energy saver according to claim 1, it is characterised in that: the flash tank with
Knockout drum is equipped between vacuum pump, the vacuum orifice of the flash tank is connected to knockout drum, the knockout drum
Vacuum orifice be connected to vacuum pump.
7. a kind of coal-burning boiler Waste Heat Recovery energy saver according to claim 6, it is characterised in that: the gas-liquid separation
The condensate liquid outlet of tank is connected to by condensate liquid output pipe with water pipe.
8. a kind of coal-burning boiler Waste Heat Recovery energy saver according to claim 6 or 7, it is characterised in that: the gas-liquid
The condensate output transistor road of knockout drum is equipped with third pneumatic control valve, and the knockout drum is equipped with the second liquid level and examines online
Survey instrument, the third pneumatic control valve connect with the second liquid level on-line detector and according to detect knockout drum in liquid level oneself
The opening and closing on dynamic control condensate output transistor road.
9. a kind of coal-burning boiler Waste Heat Recovery energy saver according to claim 6, it is characterised in that: the fin heat exchange
The tail gas dirt evacuation port of device bottom is connected to by pipeline with knockout drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820970728.0U CN208458562U (en) | 2018-06-22 | 2018-06-22 | Coal-burning boiler Waste Heat Recovery energy saver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820970728.0U CN208458562U (en) | 2018-06-22 | 2018-06-22 | Coal-burning boiler Waste Heat Recovery energy saver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208458562U true CN208458562U (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820970728.0U Active CN208458562U (en) | 2018-06-22 | 2018-06-22 | Coal-burning boiler Waste Heat Recovery energy saver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116928654A (en) * | 2023-07-14 | 2023-10-24 | 江苏国源管业有限公司 | Waste heat boiler for recovering waste steam heat by utilizing flash evaporation technology |
-
2018
- 2018-06-22 CN CN201820970728.0U patent/CN208458562U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116928654A (en) * | 2023-07-14 | 2023-10-24 | 江苏国源管业有限公司 | Waste heat boiler for recovering waste steam heat by utilizing flash evaporation technology |
| CN116928654B (en) * | 2023-07-14 | 2024-03-19 | 江苏国源管业有限公司 | Waste heat boiler for recovering waste steam heat by utilizing flash evaporation technology |
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