CN209960457U - Boiler continuous-exhaust waste heat utilization water tank heating device - Google Patents
Boiler continuous-exhaust waste heat utilization water tank heating device Download PDFInfo
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- CN209960457U CN209960457U CN201920643159.3U CN201920643159U CN209960457U CN 209960457 U CN209960457 U CN 209960457U CN 201920643159 U CN201920643159 U CN 201920643159U CN 209960457 U CN209960457 U CN 209960457U
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Abstract
The utility model discloses a boiler is waste heat utilization water tank heating device even, comprising a water tank, water tank one end is equipped with the demineralized water import, the water tank other end is equipped with the demineralized water export, the demineralized water gets into the water tank by the demineralized water import, the inside a set of draw-in groove that is equipped with of water tank, be equipped with the heat exchanger group in the draw-in groove, the heat exchanger group is including two sets of heat exchangers of height staggered arrangement, connect in order through pipeline head and the tail between the heat exchanger, the one end and the continuous blowdown flash tank exit linkage of heat exchanger group, the other end and the periodic blowdown flash tank entry linkage of heat exchanger group, the even effluent of continuous blowdown flash tank export. The utility model discloses, can adapt to the changeable operation mode of the continuous blowdown of boiler, utilize the heat in even discharge water to the utmost extent.
Description
Technical Field
The utility model relates to a boiler continuous blowdown technical field, especially a boiler is arranged waste heat utilization water tank heating device even.
Background
The waste heat boiler of the garbage power plant continuously discharges waste heat to a continuous waste discharge expansion tank for expansion steam recovery, then enters a periodic waste discharge expansion tank for mixed cooling, and finally discharges the waste heat boiler into a trench. In actual operation, the waste heat recovery efficiency of blowdown flash tank top dilatation steam is on the low side in succession, even discharge water gets into periodic blowdown flash tank mixed cooling back, although partial garbage power plant can will decide the discharge water reuse, nevertheless the main water resource that utilizes, and even discharge water is the area pressure saturation water, wherein most heat energy is wasted, in addition, partial garbage power plant is because of the aperture and the stove water quality of water chemical examination result couple of even discharge valve, make the operation mode of the continuous blowdown of boiler changeable, it is comparatively frequent to link discharge water flow change, it causes inconvenience to give the heat recovery of even discharge water. Therefore, the continuous blowdown system of the waste heat boiler of the garbage power plant wastes most of heat energy in the continuous discharge water, and the continuous blowdown variable operation mode also causes inconvenience for heat energy recovery of the continuous discharge water.
Disclosure of Invention
The utility model aims at providing a boiler is waste heat utilization water tank heating device even arranged. The utility model discloses, can adapt to the changeable operation mode of the continuous blowdown of boiler, utilize the heat in even discharge water to the utmost extent.
The technical scheme of the invention is as follows: boiler is continuous to arrange waste heat utilization water tank heating device, comprising a water tank, water tank one end is equipped with the demineralized water import, the water tank other end is equipped with the demineralized water export, the demineralized water gets into the water tank by the demineralized water import, the inside a set of draw-in groove that is equipped with of water tank, be equipped with heat exchanger group in the draw-in groove, heat exchanger group includes two sets of heat exchangers of height staggered arrangement, connect in order through pipeline head and the tail between the heat exchanger, the one end and the continuous blowdown flash tank exit linkage of heat exchanger group, the other end and the periodic blowdown flash tank entry linkage of heat exchanger group, the continuous exhaust water that the blowdown flash.
In the heating device of the boiler continuous-exhaust waste heat utilization water tank, the height difference between the tops of the two groups of heat exchangers staggered in height is 300-700mm, and the distance between the bottom end of the heat exchanger group and the bottom of the water tank is 10-30 mm.
In the heating device of the boiler continuous-exhaust waste heat utilization water tank, the longitudinal baffle plate is arranged in the heat exchanger. The baffle plates can prevent short circuit of water flow and increase turbulence to strengthen heat exchange.
In the heating device of the boiler continuous-exhaust waste heat utilization water tank, the bottom of the heat exchanger is provided with a sewage discharge pipeline, and the top of the heat exchanger is provided with an emptying pipeline.
In the heating device of the boiler continuous-exhaust waste heat utilization water tank, the heat exchanger is a cavity plate type heat exchanger.
In the heating device of the boiler continuous-exhaust waste heat utilization water tank, the heat insulation material is arranged outside the water tank, and the top of the water tank is communicated with the atmosphere.
In the heating device of the boiler continuous-discharge waste heat utilization water tank, the flow direction of the demineralized water is integrally opposite to that of the continuous-discharge water.
In the heating device of the boiler continuous-discharge waste heat utilization water tank, the demineralized water outlet is connected with the drain tank, the demineralized water outlet is higher than the inlet of the drain tank, and the highest water level of the waste water in the heat exchanger is lower than the outlet of the continuous pollution discharge flash tank. The demineralized water outlet is higher than the inlet of the drain tank, so that a water pump is not added, and the increase of electric energy loss is avoided; the highest water level of the water discharged in the heat exchanger is lower than the outlet of the continuous blowdown flash tank, so that the flow resistance of the water discharged in the heat exchanger is reduced, and the heat energy utilization efficiency is increased.
In the heating device for the boiler continuous-exhaust waste heat utilization water tank, the heating device for the boiler continuous-exhaust waste heat utilization water tank is provided with a bypass, a control valve is arranged on the bypass, and the two ends of the heating device for the boiler continuous-exhaust waste heat utilization water tank are provided with the control valves. The bypass is arranged, so that the normal operation of the continuous blowdown system of the boiler is not influenced when the heating device of the boiler continuous exhaust waste heat utilization water tank is overhauled and cleaned.
Compared with the prior art, the utility model discloses a boiler is waste heat utilization water tank heating device even, this boiler is even waste heat utilization water tank heating device sets up between continuous blowdown flash tank and periodic blowdown flash tank, even the effluent gets into the boiler and even waste heat utilization water tank heating device even, will even most heat transfer to demineralized water in the effluent through the heat exchanger group, furthest has utilized heat, energy saving and consumption reduction even in the effluent. The boiler continuous-exhaust waste heat utilization water tank heating device is suitable for the continuous sewage-discharging variable operation mode of the boiler. The utility model discloses, can adapt to the changeable operation mode of the continuous blowdown of boiler, utilize the heat in even discharge water to the utmost extent.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a continuous blowdown system of an original boiler;
fig. 3 is a structural schematic diagram of a modified continuous blowdown system of a boiler.
The labels in the figures are: 1-a water tank, 2-a demineralized water inlet, 3-a demineralized water outlet, 4-a heat exchanger group, 5-a heat exchanger, 6-a continuous blowdown flash tank outlet, 7-a periodic blowdown flash tank inlet, 8-a bypass, 9-a control valve, 10-a continuous blowdown flash tank, 11-a periodic blowdown flash tank, 12-a boiler continuous blowdown waste heat utilization water tank heating device, 13-a safety valve, 14-a flash steam removal oxygen device, 15-continuous blowdown, 16-periodic blowdown and 17-accident prevention.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Examples are given. Boiler is continuous to be arranged waste heat utilization water tank heating device, as shown in fig. 1 to 3, including water tank 1, 1 one end of water tank is equipped with demineralized water import 2, the 1 other end of water tank is equipped with demineralized water export 3, demineralized water gets into water tank 1 by demineralized water import 2, 1 inside a set of draw-in groove that is equipped with of water tank, be equipped with heat exchanger group 4 in the draw-in groove, heat exchanger group 4 includes two sets of heat exchangers 5 of height staggered, connect in order through pipeline head and the tail between the heat exchanger 5 (the pipeline passes through welded mode and connects), the one end and the continuous blowdown flash tank export 6 of heat exchanger group 4 are connected, the other end and the periodic blowdown flash tank entry 7 of heat exchanger group 4 are connected, the continuous exhaust water of blowdown flash tank export. The end of the demineralized water inlet 2 and the end of the demineralized water outlet 3 of the water tank 1 have a sufficient space.
The height difference of the tops of the two groups of heat exchangers 5 staggered in height is 300-700mm, and the distance between the bottommost end of the heat exchanger group 4 and the bottom of the water tank 1 is 10-30 mm.
And a longitudinal baffle plate is arranged in the heat exchanger 5.
A sewage discharge pipeline is arranged at the bottom of the heat exchanger 5, and an emptying pipeline is arranged at the top of the heat exchanger 5.
The heat exchanger 5 is a cavity plate type heat exchanger.
The outside of the water tank 1 is provided with a heat insulation material, and the top of the water tank 1 is communicated with the atmosphere.
The flow direction of the desalted water is opposite to the flow direction of the discharged water integrally.
The demineralized water outlet 3 is connected with the drain tank, the demineralized water outlet 3 is higher than the inlet of the drain tank, and the highest water level of the discharged water in the heat exchanger 5 is lower than the outlet 6 of the continuous pollution discharge flash tank.
The level of desalinated water in the water tank 1 does not exceed the topmost part of the heat exchanger group 4.
The boiler continuous-exhaust waste heat utilization water tank heating device 12 is provided with a bypass 8, the bypass 8 is provided with a control valve 9, and the two ends of the boiler continuous-exhaust waste heat utilization water tank heating device 12 are provided with the control valves 9.
The utility model discloses a theory of operation: the utility model discloses set up between continuous blowdown flash tank 10 and periodic blowdown flash tank 11, the utility model discloses an one end and the continuous blowdown flash tank export 6 of heat exchanger group 4 are connected, the other end and the periodic blowdown flash tank entry 7 of heat exchanger group 4 are connected, and continuous blowdown flash tank export 6 even the effluent gets into heat exchanger group 4, gets into periodic blowdown flash tank 11 again by periodic blowdown flash tank entry 7, the utility model discloses a 1 one end of water tank is equipped with demineralized water import 2, and the 1 other end of water tank is equipped with demineralized water export 3, and demineralized water gets into water tank 1 by demineralized water import 2, is discharged by demineralized water export 3, and the flow direction of even effluent is opposite with the flow direction of demineralized water, and the heat of even effluent passes through heat exchanger group 4 fully transfer to demineralized water, utilizes the heat of even effluent in to furthest, energy saving and consumption reduction. The boiler continuous-exhaust waste heat utilization water tank heating device 12 can adapt to the continuous variable operation mode of boiler pollution discharge, and utilize the heat in continuous-exhaust water to the maximum extent.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. Boiler is arranged waste heat utilization water tank heating device even, its characterized in that: including water tank (1), water tank (1) one end is equipped with demineralized water import (2), water tank (1) other end is equipped with demineralized water export (3), demineralized water gets into water tank (1) by demineralized water import (2), water tank (1) inside is equipped with a set of draw-in groove, be equipped with heat exchanger group (4) in the draw-in groove, heat exchanger group (4) are including two sets of heat exchanger (5) of height staggered arrangement, connect in order through pipeline head and the tail between heat exchanger (5), the one end and the continuous blowdown ware export (6) of heat exchanger group (4) are connected, the other end and the periodic blowdown flash tank entry (7) of heat exchanger group (4) are connected, the continuous effluent water of blowdown flash tank export (6) gets into heat exchanger group (4).
2. The boiler continuous-exhaust waste heat utilization water tank heating device according to claim 1, characterized in that: the height difference of the tops of the two groups of heat exchangers (5) staggered in height is 300-700mm, and the distance between the bottommost end of the heat exchanger group (4) and the bottom of the water tank (1) is 10-30 mm.
3. The boiler continuous-exhaust waste heat utilization water tank heating device according to claim 2, characterized in that: and a longitudinal baffle plate is arranged in the heat exchanger (5).
4. The boiler continuous-exhaust waste heat utilization water tank heating device according to claim 1, characterized in that: a sewage discharge pipeline is arranged at the bottom of the heat exchanger (5), and an emptying pipeline is arranged at the top of the heat exchanger (5).
5. The boiler continuous-exhaust waste heat utilization water tank heating device according to claim 4, characterized in that: the heat exchanger (5) is a cavity plate type heat exchanger.
6. The boiler continuous-exhaust waste heat utilization water tank heating device according to claim 1, characterized in that: the water tank (1) is externally provided with a heat insulation material, and the top of the water tank (1) is communicated with the atmosphere.
7. The boiler continuous-exhaust waste heat utilization water tank heating device according to claim 1, characterized in that: the flow direction of the desalted water is opposite to the flow direction of the discharged water integrally.
8. The boiler continuous-exhaust waste heat utilization water tank heating device according to claim 1, characterized in that: the demineralized water outlet (3) is connected with the drain tank, the demineralized water outlet (3) is higher than the inlet of the drain tank, and the highest water level of the discharged water in the heat exchanger (5) is lower than the outlet (6) of the continuous pollution discharge flash tank.
9. The boiler continuous waste heat utilization water tank heating device according to any one of claims 1 to 8, characterized in that: the boiler continuous-exhaust waste heat utilization water tank heating device (12) is provided with a bypass (8), a control valve (9) is arranged on the bypass (8), and the control valves (9) are arranged at two ends of the boiler continuous-exhaust waste heat utilization water tank heating device (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920643159.3U CN209960457U (en) | 2019-05-07 | 2019-05-07 | Boiler continuous-exhaust waste heat utilization water tank heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920643159.3U CN209960457U (en) | 2019-05-07 | 2019-05-07 | Boiler continuous-exhaust waste heat utilization water tank heating device |
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| Publication Number | Publication Date |
|---|---|
| CN209960457U true CN209960457U (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920643159.3U Active CN209960457U (en) | 2019-05-07 | 2019-05-07 | Boiler continuous-exhaust waste heat utilization water tank heating device |
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| Country | Link |
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| CN (1) | CN209960457U (en) |
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2019
- 2019-05-07 CN CN201920643159.3U patent/CN209960457U/en active Active
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