CN219200087U - Exhaust steam waste heat recovery device - Google Patents
Exhaust steam waste heat recovery device Download PDFInfo
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- CN219200087U CN219200087U CN202320080789.0U CN202320080789U CN219200087U CN 219200087 U CN219200087 U CN 219200087U CN 202320080789 U CN202320080789 U CN 202320080789U CN 219200087 U CN219200087 U CN 219200087U
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- exhaust steam
- heat exchange
- box body
- water supply
- exchange plate
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- 238000011084 recovery Methods 0.000 title claims abstract description 35
- 239000002918 waste heat Substances 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 89
- 239000000498 cooling water Substances 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 238000001816 cooling Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Abstract
The utility model discloses a waste steam waste heat recovery device, which comprises: the device comprises a box body, a water supply mechanism, a dead steam inlet pipe and a heat exchange plate; one end of exhaust steam intake pipe stretches into wherein from the bottom level that is the box of vertical setting to pour into exhaust steam into to its inside, the inside of box evenly inclines to be provided with along longitudinal direction and is used for the polylith heat transfer board with exhaust steam heat exchange, every adjacent two heat transfer boards incline direction all opposite, every heat transfer board evenly runs through and is provided with a plurality of rows of through-holes that supply exhaust steam to pass through, water supply mechanism sets up at the top of box, and be in the top of the higher end of heat transfer board of highest layer, with pour into the cooling water with exhaust steam carries out the heat exchange into in the box, this exhaust steam waste heat recovery device can not fully contact with the cooling water when overcoming each through-hole board of exhaust steam in the prior art, and lead to exhaust steam can not be absorbed completely, exhaust steam recovery efficiency's problem has been reduced.
Description
Technical Field
The utility model relates to the field of boilers, in particular to a waste steam and waste heat recovery device.
Background
The deaerator matched with the existing boiler can generate a large amount of hot steam in the working process, wherein the content of oxygen and nitrogen is 0.1%, the content of steam is up to 99.9%, the deaerator achieves the aim of deoxidizing through emptying exhaust in the use process, but also consumes a large amount of steam, and simultaneously, a large amount of water mist is generated at an emptying port of the deaerator in the air in winter, thereby affecting the environment and wasting steam water resources.
And (3) searching: chinese patent application number is "CN201910732390.4", discloses a orifice plate deaerator exhaust steam recovery plant, including casing, its characterized in that: the utility model provides a well plate deaerator exhaust steam recovery plant, still include the water seal groove, fall U type pipeline, orifice plate and exhaust steam pipeline, upper portion sets up the water seal groove in the casing, the lower part sets up down between water seal groove and the fall U type pipeline from the top down level sets up layer to layer orifice plate, open there is the aperture on the orifice plate, the vertical exhaust steam pipeline that sets up in casing middle part, the exhaust steam pipeline passes each layer orifice plate, the casing top sets up the exhaust steam entry, exhaust steam entry and exhaust steam pipeline intercommunication are provided with water inlet and blow-down pipe on the water seal groove, casing upper portion is provided with the evacuation mouth, evacuation mouth intercommunication blow-down pipe, the casing bottom sets up and places the clean mouth.
The inventors have found that the following problems exist with the prior art in the practice of the present utility model:
in the prior art, cooling water is injected into the water seal tank in the use process, so that the cooling water overflows from an opening of the water seal tank and flows downwards to the perforated plates of all layers, and heat exchange between steam and the cooling water is realized. However, because the cooling water overflows from the upper port of the water seal tank and flows vertically downwards to the perforated plate along the outer side wall of the water seal tank, the water left on the perforated plate from the side wall around the water seal tank does not reach the position of the perforated plate right below the water seal tank, and the water extends to pass through a plurality of small holes on the perforated plate right around the water seal tank to fall below the inner cavity of the shell, so that the position of the perforated plate right below the water seal tank is difficult to have cooling water passing through or less cooling water passing through, and exhaust steam passing through the position of the perforated plate right below the water seal tank cannot be fully contacted with the cooling water, and the exhaust steam cannot be fully absorbed, thereby reducing the recovery rate of the exhaust steam.
Therefore, the utility model provides a waste steam waste heat recovery device which can fully contact with cooling water on a heat exchange plate when waste steam passes through each heat exchange plate in the use process, can enable the waste steam and the cooling water on the heat exchange plate to complete heat exchange, enables the waste steam to be completely absorbed and improves the waste steam recovery rate.
Disclosure of Invention
Aiming at the technical problems, the utility model aims to solve the problems that the exhaust steam cannot be fully contacted with cooling water when passing through each perforated plate, so that the exhaust steam cannot be fully absorbed and the recovery efficiency of the exhaust steam is reduced in the prior art, thereby providing the exhaust steam waste heat recovery device which can fully contact with the cooling water on the heat exchange plate when the exhaust steam passes through each heat exchange plate in the use process, can enable the exhaust steam to be in heat exchange with the cooling water on the heat exchange plate, enables the exhaust steam to be fully absorbed and improves the recovery rate of the exhaust steam.
In order to achieve the above object, the present utility model provides a waste heat recovery apparatus for exhaust steam, comprising: the device comprises a box body, a water supply mechanism, a dead steam inlet pipe and a heat exchange plate;
one end of exhaust steam intake pipe stretches into wherein from being the bottom level of box of vertical setting to pour into exhaust steam to its inside, the inside of box is provided with along the even slope of longitudinal direction and is used for with exhaust steam heat exchange's polylith heat exchange plate, every adjacent two the inclination of heat exchange plate is all opposite, every the heat exchange plate evenly runs through and is provided with the through-hole that a plurality of rows of supplies exhaust steam to pass through, water supply mechanism sets up the top of box, and is in the top of the higher end of heat exchange plate of highest layer, in order to pour into with the box in the cooling water that carries out heat exchange with exhaust steam.
Preferably, a plurality of buffer raised strips are arranged on the upper surface of each heat exchange plate at equal intervals, and a row of through holes vertically penetrate through the buffer raised strips at equal intervals between every two adjacent buffer raised strips.
Preferably, the water supply mechanism comprises: a water supply box body, a water supply spray head and a water supply pump; wherein,,
the water supply box body is horizontally fixed on the inner wall of the box body, a plurality of water supply spray heads communicated with the inner cavity of the heat exchange plate are arranged on the lower surface of the water supply box body at equal intervals along the width direction of the heat exchange plate, the water supply pump is arranged at the top of the box body, the output end of the water supply pump stretches into the box body and is communicated with the interior of the water supply box body, and the input end of the water supply pump is communicated with a container containing desalted water through a water pipe.
Preferably, the exhaust steam inlet pipe positioned in the box body is vertically penetrated with a plurality of exhaust steam discharge pipes communicated with the inside of the exhaust steam inlet pipe at equal intervals.
Preferably, a drain pump for discharging condensed water collected at the bottom of the tank is fixedly arranged at the top of the tank body, the input end of the drain pump extends into the inner cavity of the tank body from the bottom of the tank body, and the output end of the drain pump is communicated with the water tank of the deaerator through a water pipe.
Preferably, the internal channel of each through hole has a serpentine cavity structure.
Preferably, the internal channel of each through hole is a truncated cone cavity structure with an upper end diameter larger than a lower end diameter along the longitudinal direction.
Preferably, the bottom of box is even and vertically is provided with many supporting legs, and the bottom of every supporting leg all is fixed with the bearing block horizontally.
According to the technical scheme, the exhaust steam waste heat recovery device provided by the utility model has the beneficial effects that: when the cooling water supply device is used, cooling water is injected into the inner cavity of the heat exchange plate from the top of the box body through the water supply mechanism, the cooling water injected into the box body firstly passes through the upper surface of the heat exchange plate of the highest layer and flows to the lower end of the heat exchange plate through the inclined heat exchange plate, so that the cooling water can uniformly flow on each heat exchange plate, part of the cooling water flows to the lower end of the heat exchange plate through a plurality of through holes in the heat exchange plate in the process of flowing from the higher end of the cooling water to the lower end of the heat exchange plate, and flows to the lower heat exchange plate below the heat exchange plate.
Additional features and advantages of the utility model will be set forth in the detailed description which follows; and none of the utility models are related to the same or are capable of being practiced in the prior art.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a schematic view of a waste heat recovery device for exhaust steam provided in a preferred embodiment of the present utility model;
FIG. 2 is a schematic view showing the internal structure of a waste heat recovery device for exhaust steam provided in a preferred embodiment of the present utility model;
FIG. 3 is a sectional view showing the construction of a case of the exhaust steam heat recovery apparatus provided in a preferred embodiment of the present utility model;
FIG. 4 is a schematic view of the heat exchange plate of the exhaust steam waste heat recovery device provided in a preferred embodiment of the present utility model;
fig. 5 is a structural sectional view of the heat exchange plate;
fig. 6 is another structural sectional view of the heat exchange plate.
Description of the reference numerals
1. A case; 2. a water supply mechanism; 201. a water supply box body; 202. a water supply nozzle; 203. a water feed pump; 3. a dead steam inlet pipe; 4. a draining pump; 5. a heat exchange plate; 6. buffering raised strips; 7. a waste steam discharge pipe; 8. and a through hole.
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
Example 1
As shown in fig. 1 to 5, the exhaust steam waste heat recovery device provided by the utility model comprises: the device comprises a box body 1, a water supply mechanism 2, a dead steam inlet pipe 3 and a heat exchange plate 5;
one end of the exhaust steam air inlet pipe 3 horizontally stretches into the box body 1 from the bottom of the box body which is vertically arranged, exhaust steam is injected into the box body, a plurality of heat exchange plates 5 used for heat exchange with the exhaust steam are uniformly and obliquely arranged in the box body 1 along the longitudinal direction, the inclination directions of every two adjacent heat exchange plates 5 are opposite, each heat exchange plate 5 uniformly penetrates through a plurality of rows of through holes 8 for the exhaust steam to pass through, the water supply mechanism 2 is arranged at the top of the box body 1 and is positioned above the higher end of the heat exchange plate 5 at the highest layer, and cooling water for heat exchange with the exhaust steam is injected into the box body 1.
In the above scheme, when in use, cooling water is injected into the inner cavity of the heat exchange plate 5 from the top of the box body 1 through the water supply mechanism 2, as shown in fig. 2, the cooling water injected into the box body 1 firstly passes through the upper surface of the heat exchange plate 5 at the highest layer, and flows towards the lower end of the heat exchange plate 5 through the inclined heat exchange plate 5, so that the cooling water uniformly flows on each heat exchange plate 5, part of the cooling water flows through a plurality of through holes 8 on the heat exchange plate 5 in the process of flowing from the higher end of the cooling water to the lower end of the cooling water, and flows towards the next heat exchange plate 5 below the cooling plate and adjacent to the cooling plate, and then the cooling water sequentially passes through a plurality of the heat exchange plates 5 to the bottom of the box body 1 respectively according to the above, and then exhaust steam enters the inside the cooling water inlet pipe 3 from the bottom of the box body 1 and rises along the inner cavity of the box body 1, and in the process of rising, the exhaust steam respectively passes through each heat exchange plate 5 in turn, and the cooling water flows into each heat exchange plate 5 in turn, and then the cooling water can flow towards the heat exchange plate 5 through the inclined heat exchange plate 5 at the highest layer, and the cooling water can completely reaches the upper surface of the cooling plate 5, and the cooling water can completely reaches the cooling plate 5 due to the fact that the cooling water can flow through the heat exchange plate 5.
In a preferred embodiment of the present utility model, a plurality of buffer ribs 6 are disposed on the upper surface of each heat exchange plate 5 at equal intervals, and a row of through holes 8 vertically penetrate through each adjacent two buffer ribs 6 at equal intervals.
In the above scheme, the buffer raised strips 6 play a role in buffering, when cooling water flows from the higher end of each heat exchange plate 5 to the lower end of the heat exchange plate, the flow speed of the cooling water is slowed down under the action of the buffer raised strips 6, the flowing time of the cooling water along the upper surface of the inclined heat exchange plate 5 can be prolonged, and when exhaust steam passes through the heat exchange plate 5, the exhaust steam can fully contact with the cooling water staying on the heat exchange plate 5, so that the exhaust steam is fully absorbed, and the recovery rate of the exhaust steam is further improved.
In a preferred embodiment of the present utility model, the water supply mechanism 2 includes: a water supply box 201, a water supply nozzle 202 and a water supply pump 203; wherein,,
the water supply box 201 is horizontally fixed on the inner wall of the box 1, a plurality of water supply nozzles 202 communicated with the inner cavity of the heat exchange plate 5 are equidistantly arranged on the lower surface of the water supply box 201 along the width direction of the heat exchange plate 5, the water supply pump 203 is arranged at the top of the box 1, the output end of the water supply pump 203 extends into the box 1 and is communicated with the interior of the water supply box 201, and the input end of the water supply pump is communicated with a container containing desalted water through a water pipe.
In the above-mentioned scheme, during use, by starting the water feed pump 203, desalted water is sprayed onto the heat exchange plate 5 from the top of the box body 1 to the water feed box body 201 located on the highest layer and from the plurality of water feed spray heads 202 communicated with the water feed box body along the width of the heat exchange plate 5, cooling water sprayed onto the upper end of the heat exchange plate 5 can uniformly flow to the lower end of the heat exchange plate, so that the cooling water can fully contact with the heat exchange plate, and exhaust steam can fully contact with the cooling water and perform heat exchange in the process of passing through the heat exchange plate 5 by the through holes 8, so that the exhaust steam can be fully absorbed.
In a preferred embodiment of the utility model, the exhaust steam inlet pipe 3 positioned in the box body 1 is vertically provided with a plurality of exhaust steam discharge pipes 7 communicated with the interior of the exhaust steam inlet pipe at equal intervals.
In the above scheme, the exhaust steam entering the air inlet pipe 3 can be uniformly discharged into the inner cavity of the box body 1 through the exhaust steam discharge pipes 7, and the exhaust steam entering the box body 1 can be uniformly contacted with the heat exchange plate 5, so that the heat exchange work can be more fully performed.
In a preferred embodiment of the present utility model, a drain pump 4 for draining condensed water collected at the bottom of the tank 1 is fixedly arranged at the top of the tank 1, and an input end of the drain pump 4 extends into an inner cavity of the tank 1 from the bottom of the tank, and an output end of the drain pump is communicated with a water tank of the deaerator through a water pipe.
In the above scheme, the exhaust steam exchanges heat with the cooling water through the heat exchange plates 5 and is converted into condensed water to fall into the bottom of the box body 1, when the condensed water on the bottom of the box body 1 is accumulated to a certain extent, the drainage pump 4 is started to convey the recovered rising and cooling water to the water tank of the deaerator for recycling, so that all heat and water of the deaerator are recovered.
In a preferred embodiment of the present utility model, the internal channel of each through hole 8 has a serpentine cavity structure.
In the above scheme, when the exhaust steam passes through each through hole 8 of the heat exchange plate 5, because the internal channel of the through hole 8 is of a serpentine cavity structure, the time of the exhaust steam in the through hole 8 can be prolonged, so that the cooling water flowing through the through hole 8 can be fully contacted with the exhaust steam passing through the through hole 8, and the exhaust steam and the cooling water can be fully subjected to heat exchange work, so that the exhaust steam is completely absorbed, and the recovery rate of the exhaust steam can be further improved.
In a preferred embodiment of the present utility model, the bottom end of the case 1 is uniformly and vertically provided with a plurality of support legs, and the bottom end of each support leg is horizontally fixed with a bearing block.
Example two
The second embodiment is different from the first embodiment in that:
as shown in figures 1, 2, 3, 4 and 6,
in a preferred embodiment of the present utility model, the internal channel of each through hole 8 is a truncated cone cavity structure with an upper end diameter larger than a lower end diameter along the longitudinal direction.
In the above scheme, when the exhaust steam enters the through hole 8 of the circular truncated cone cavity structure with the diameter larger than that of the lower end from the upper end, as the diameter of the through hole 8 is gradually increased from bottom to top, the flow speed of the exhaust steam can be gradually slowed down in the process that the exhaust steam passes out from the inner cavity of the through hole 8 to the upper end, and the speed of the exhaust steam passing through the through hole 8 can be slowed down, so that the exhaust steam can stay on the heat exchange plate 5 for a prolonged time, and the exhaust steam is fully contacted with the cooling water flowing along the inclined surface of the heat exchange plate 5, so that the exhaust steam and the cooling water can be fully subjected to heat exchange work, the exhaust steam is fully absorbed, and the recovery rate of the exhaust steam is further improved.
The other is the same as in the first embodiment.
In conclusion, the exhaust steam waste heat recovery device provided by the utility model solves the problems that in the prior art, exhaust steam cannot be fully absorbed due to insufficient contact with cooling water when the exhaust steam passes through each perforated plate, and the exhaust steam recovery efficiency is reduced.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (8)
1. The utility model provides a dead steam waste heat recovery device which characterized in that, dead steam waste heat recovery device includes: the device comprises a box body (1), a water supply mechanism (2), a dead steam inlet pipe (3) and a heat exchange plate (5);
one end of exhaust steam intake pipe (3) is followed the bottom level of box (1) that is vertical setting and stretches into wherein to pour into exhaust steam to its inside, the inside of box (1) is provided with along longitudinal direction evenly slope and is used for with exhaust steam heat exchange's polylith heat exchange plate (5), every adjacent two the incline direction of heat exchange plate (5) is all opposite, every heat exchange plate (5) evenly runs through and is provided with a plurality of rows of through-holes (8) that supply exhaust steam to pass through, water supply mechanism (2) set up the top of box (1), and be in the top of the higher end of heat exchange plate (5) of highest layer, with pour into in with box (1) with exhaust steam carries out the cooling water of heat exchange.
2. The exhaust steam waste heat recovery device according to claim 1, wherein a plurality of buffer raised strips (6) are arranged on the upper surface of each heat exchange plate (5) at equal intervals, and a row of through holes (8) are vertically arranged between every two adjacent buffer raised strips (6) at equal intervals.
3. The exhaust steam waste heat recovery apparatus as claimed in claim 1, wherein the water supply mechanism (2) comprises: a water supply box body (201), a water supply nozzle (202) and a water supply pump (203); wherein,,
the water supply box body (201) is horizontally fixed on the inner wall of the box body (1), a plurality of water supply spray heads (202) communicated with the inner cavity of the heat exchange plate (5) are arranged on the lower surface of the water supply box body (201) at equal intervals in the width direction, the water supply pump (203) is arranged at the top of the box body (1), the output end of the water supply pump extends into the box body (1) and is communicated with the inside of the water supply box body (201), and the input end of the water supply pump is communicated with a container containing desalted water through a water pipe.
4. The exhaust steam waste heat recovery device according to claim 1, wherein the exhaust steam inlet pipe (3) positioned in the box body (1) is vertically penetrated with a plurality of exhaust steam discharge pipes (7) communicated with the inside of the exhaust steam inlet pipe at equal intervals.
5. The exhaust steam waste heat recovery device according to claim 1, wherein a drainage pump (4) for discharging condensed water gathered at the bottom of the box body (1) is fixedly arranged at the top of the box body (1), an input end of the drainage pump (4) extends into an inner cavity of the box body (1) from the bottom of the box body, and an output end of the drainage pump is communicated with a water tank of the deaerator through a water pipe.
6. The exhaust steam waste heat recovery apparatus as claimed in claim 1, wherein the internal passage of each through hole (8) is a serpentine cavity structure.
7. The exhaust steam waste heat recovery device according to claim 1, wherein the internal passage of each through hole (8) is a circular truncated cone cavity structure with an upper end diameter larger than a lower end diameter along the longitudinal direction.
8. The exhaust steam waste heat recovery device according to claim 1, wherein a plurality of supporting legs are uniformly and vertically arranged at the bottom end of the box body (1), and bearing blocks are horizontally fixed at the bottom end of each supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320080789.0U CN219200087U (en) | 2023-01-13 | 2023-01-13 | Exhaust steam waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320080789.0U CN219200087U (en) | 2023-01-13 | 2023-01-13 | Exhaust steam waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219200087U true CN219200087U (en) | 2023-06-16 |
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ID=86716873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320080789.0U Active CN219200087U (en) | 2023-01-13 | 2023-01-13 | Exhaust steam waste heat recovery device |
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| Country | Link |
|---|---|
| CN (1) | CN219200087U (en) |
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2023
- 2023-01-13 CN CN202320080789.0U patent/CN219200087U/en active Active
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