CN221036252U - A filter dirt collecting device for absorption unit adopts and contains sediment heat source water - Google Patents
A filter dirt collecting device for absorption unit adopts and contains sediment heat source water Download PDFInfo
- Publication number
- CN221036252U CN221036252U CN202322774156.2U CN202322774156U CN221036252U CN 221036252 U CN221036252 U CN 221036252U CN 202322774156 U CN202322774156 U CN 202322774156U CN 221036252 U CN221036252 U CN 221036252U
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- Prior art keywords
- slag
- heat source
- source water
- dreg
- channel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 25
- 239000013049 sediment Substances 0.000 title description 2
- 239000002893 slag Substances 0.000 claims abstract description 70
- 238000001914 filtration Methods 0.000 claims abstract description 40
- 239000010865 sewage Substances 0.000 claims abstract description 19
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 238000011010 flushing procedure Methods 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 2
- 238000000151 deposition Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 229910000922 High-strength low-alloy steel Inorganic materials 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 239000003779 heat-resistant material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
A filtering and dirt collecting device for an absorption unit adopting slag-containing heat source water comprises a heat source water pipeline for conveying slag-containing heat source water and a slag dirt discharging channel communicated with the heat source water pipeline; a filter assembly is arranged in the heat source water pipeline along the slag-containing heat source water flow path, and the filter assembly is arranged above the rear side of the slag sewage channel, so that slag intercepted by the filter assembly enters the slag sewage channel; the dreg blow-down channel is provided with a dreg collecting assembly for collecting dreg and preventing the dreg from flowing back along the dreg output path; the output end of the heat source water pipeline is connected with a heat source water heat exchanger of the unit. On one hand, the utility model can filter the heat source water containing slag, so as to prevent slag from wearing the heat exchange tube or depositing in the heat exchange tube, and the slag can fall into the slag blow-down channel under the action of gravity; on the other hand, the dregs can be quickly collected, and the dregs are prevented from being stirred and re-circulated under the action of water flow, so that the filtration is affected.
Description
Technical Field
The utility model relates to the technical field of slag-containing heat source water filtration, in particular to a filtering and dirt collecting device for an absorption cold water (heat pump) unit by adopting slag-containing heat source water.
Background
Slag-containing heat source water including, but not limited to, blast furnace slag flushing water, coking circulating ammonia water, ammonia distillation wastewater, and the like. They contain more waste heat and can be used as a driving heat source of a hot water type absorption water chilling unit or a high-temperature heat source and a low-temperature heat source of an absorption heat pump unit. The hot water type absorption chiller includes, but is not limited to, a hot water type lithium bromide absorption chiller (hereinafter referred to as a "chiller"), and slag-containing heat source water enters a generator of the chiller. The absorption heat pump unit comprises, but is not limited to, a hot water type lithium bromide absorption heat pump unit (hereinafter referred to as a heat pump unit), a generator and an evaporator of which slag-containing heat source water enters the heat pump unit. Heat source water such as blast furnace slag flushing water is treated by methods such as sedimentation, but a small amount of slag still exists, wherein the slag with larger particles and hardness can wear heat exchange tubes of a water chiller or a heat pump unit.
The existing slag flushing water can be utilized by adopting a plate heat exchanger secondary heat exchange method or a flash tank low-pressure steam heat exchange method, and the problems of slag abrasion, sedimentation and scaling are not needed to be considered for a water chilling unit and a heat pump unit. However, the above methods all need to increase large equipment investment, and also can reduce heat source grade and energy utilization efficiency, and the heat exchanger and the flash tank have problems of scaling, abrasion, blockage and the like, and need to be cleaned and maintained. The method is not as simple as the method that the heat source water directly enters the water chilling unit and the heat pump unit, and is high-efficiency and low in investment.
While the traditional dreg-containing hot water adopts a filtering method, although the dreg can be removed, after long-time operation, the filter is easily blocked by the dreg, so that the pressure loss of the heat source water is increased, even the heat source water is completely blocked, and shutdown and disassembly are often needed for cleaning.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide the filtering and dirt collecting device which is difficult to block, can automatically collect dregs, is convenient to discharge and clear, is easy to backwash and clear a filter screen and is used for an absorption unit to adopt the heat source water containing the dregs.
The technical scheme of the utility model is as follows: a filtering and dirt collecting device for an absorption unit adopting slag-containing heat source water comprises a heat source water pipeline for conveying slag-containing heat source water and a slag dirt discharging channel communicated with the heat source water pipeline; a filter assembly is arranged in the heat source water pipeline along the slag-containing heat source water flow path, and the filter assembly is arranged above the rear side of the slag sewage channel, so that slag intercepted by the filter assembly enters the slag sewage channel; the dreg blow-down channel is provided with a dreg collecting assembly for collecting dreg along the output path of the dreg; the output end of the heat source water pipeline is connected with a heat source water heat exchanger of the unit.
Further, the filter assembly is arranged obliquely, so that dregs intercepted by the filter assembly enter the dirt collecting assembly by utilizing the action of gravity.
Further, the upper side of the filter assembly is inclined forwards towards the water facing side, and the front inclination angle of the filter assembly is 15-75 degrees.
Further, the dreg blow-down channel is sequentially provided with a flow guide check plate, a collecting inclined hopper and a blow-down outlet switch along the output path of dreg, so that the dirt collecting assembly is formed.
Further, the flow guide check plate and the collecting inclined hopper are of funnel-shaped structures, and the included angle between the flow guide check plate and the horizon is 15-75 degrees.
Further, the size of the middle channel of the flow guide check plate is 5-200 mm, and the size of the middle channel of the collecting inclined hopper is larger than that of the middle channel of the flow guide check plate; the drain outlet switch is arranged at the outlet end of the collecting inclined hopper.
Further, the flow guide check plate is arranged in the dreg blow-down channel, and the periphery of the flow guide check plate is welded with the shell of the dreg blow-down channel or connected with the shell through a fastener; the collecting inclined hopper is connected to the lower end of the dreg blow-down channel, is integrally cast or stamped with the dreg blow-down channel, and can be manufactured in a segmented mode for welding connection.
Further, a back flushing assembly is arranged at the upper part of the heat source water pipeline, and the back flushing assembly is arranged above the rear side of the filter assembly.
Further, the recoil assembly comprises a recoil opening formed in the heat source water pipeline and a cover plate covering the recoil opening; the diameter of the recoil open hole is 10-250 mm.
Further, the filtering part of the filtering component is a metal mesh, the aperture of the metal mesh is 2-25 mm, and the aperture of the metal mesh does not exceed the inner diameter of a heat exchange tube of the unit heat source water heat exchanger; the metal mesh adopts a flat plate, an arc-shaped plate, a wave pattern plate or a bending pattern plate.
The utility model has the beneficial effects that: the filtering component is arranged in the position, close to the dreg blow-down channel, of the heat source water containing the dreg, so that the dreg just falls into the dreg blow-down channel, and the dreg is prevented from wearing the heat exchange tube or being deposited in the heat exchange tube; by inclining the upper part of the filtering component forwards towards the water facing side, the intercepted dregs can be positioned in front of the lower part of the metal mesh, and can fall off freely under the action of gravity; through set up the dirt collection subassembly on the output route of dregs along dregs in dregs blowdown passageway, the baffle promptly, collect oblique fill and drain switch, can collect dregs in collecting oblique fill fast, and the cooperation of baffle and collection oblique fill can prevent dregs to be stirred under the rivers effect and play the reflux again and influence the filtration; through setting up recoil subassembly to prevent after the long-time operation, more dregs inlay in the metal mesh, lead to the pressure loss increase, clear away through the back flush and inlay dregs, make it fall into dirty subassembly of collection or discharge through dirty subassembly of collection, easy operation, swift.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present utility model.
The attached drawings are used for identifying and describing:
1. A heat source water pipe; 2. a dreg trapway; 3. a filter assembly; 4. a recoil assembly; 21. a flow guide check plate; 22. collecting an inclined hopper; 23. a drain outlet switch; 41. recoil tapping; 42. and a cover plate.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific examples.
As shown in fig. 1: a filtering and dirt collecting device for an absorption unit adopting slag-containing heat source water comprises a heat source water pipeline 1 for conveying slag-containing heat source water and a slag dirt discharging channel 2 communicated with the heat source water pipeline 1; a filtering component 3 is arranged in the heat source water pipeline 1 along the slag-containing heat source water flow path, and the filtering component 3 is arranged at the rear side of the slag sewage channel 2, so that slag filtered by the filtering component 3 enters the slag sewage channel 2; the dreg blow-down channel 2 is provided with a dirt collecting assembly for collecting dreg along the output path of the dreg; the output end of the heat source water pipeline 1 is connected with a heat source water heat exchanger of an absorption chiller or a heat pump unit.
In the present embodiment, slag-containing heat source water containing large slag is supplied from the waste water generating device, and the heat source water pipe 1 is connected between the waste water generating device and the absorption unit.
In this embodiment, the filtering component 3 is obliquely disposed, and its periphery is connected with the heat source water pipeline by welding or fastening means, and its lower part is as close to the inlet of the dreg blow-down channel as possible, so as to ensure that the dreg filtered by the filtering component easily enters the dreg blow-down channel. The upper part of the filtering component 3 is inclined forwards towards the water flow side by a certain angle (hereinafter referred to as a forward inclination angle), the forward inclination angle is preferably 60 degrees, so that dregs intercepted by the filtering component are positioned at the lower front part, and the dregs fall off into the dregs blow-off channel 2 under the action of gravity.
The filtering part of the filtering component 3 is a metal mesh, and the metal mesh is made of a material resistant to medium corrosion and scouring, and the material comprises stainless steel materials such as 2205 duplex stainless steel, titanium alloy and high-strength low-alloy steel. The aperture of the metal mesh is 2-25 mm, preferably 3-10 mm, and does not exceed the inner diameter of a heat exchange tube of the water chilling unit or the heat pump unit. The metal mesh can be flat plate, or arc plate, wave pattern or bending pattern, to increase filtering area, reduce resistance and improve slag capacity.
In this embodiment, the dreg blow-down channel 2 is sequentially provided with a flow guide check plate 21, a collection inclined hopper 22 and a blow-down outlet switch 23 along the output path of dreg, so as to form a dirt collecting assembly. Specifically, the flow-guiding check plate 21 is provided in the dreg blow-down passage 2, preferably in welded connection with the dreg blow-down passage. The sludge drain passage 2 is preferably designed in a circular tube structure, and the collecting hopper 22 is connected to the lower end of the sludge drain passage. The collecting inclined hopper 22 can be connected with the dreg blow-down channel, or the collecting inclined hopper 22 and the dreg blow-down channel 2 are integrally cast, for example, a closing-up is formed at the lower end of the dreg blow-down channel, the drain switch is arranged at the lower end of the collecting inclined hopper 22, for example, after the lower end of the dreg blow-down channel forms a funnel-shaped closing-up, the collecting inclined hopper is vertically extended along the closing-up, and the extended bottom end is connected with the drain switch. The guide check plate 21 and the collection inclined hopper 22 are of funnel-shaped structures, and the included angle between the guide check plate and the horizontal line is 15-85 degrees, preferably 40-60 degrees, so that slag can be guided, collected and discharged conveniently. The diversion check plate 21, the collection inclined hopper 22 and the drain switch 23 are made of materials resistant to medium corrosion and scouring, and the materials comprise stainless steel materials such as 2205 duplex stainless steel, titanium alloy and high-strength low-alloy steel. The cross-sectional shape enclosed by the flow-guiding check plate 21 and the collecting hopper 22 may be circular, elliptical, quadrangular, triangular, polygonal and irregular, preferably circular. The diameter (or polygonal side length) of the intermediate channel of the flow guide check plate 21 is 5 to 200mm, preferably 30 to 100mm. The baffle facilitates the rapid entry of the debris beneath the dirt collection assembly and prevents the debris from being agitated by the water flow and re-rising back into the water flow. The intermediate channel size of the collecting hopper 22 must be larger than that of the deflector check plate 21 in order to prevent the slag from being agitated again by the water flow and to facilitate rapid discharge. The drain switch 23 is arranged on the drain of the collecting inclined hopper. The drain outlet switch 23 can be a ball valve, a butterfly valve and the like, and can also be a cover plate, and can be fixed and sealed in a flange, a buckle, a screw cap, a hinge and the like; the sealing adopts an elastic sealing piece, and according to the chemical composition and the temperature of a medium, fluororubber, silicon rubber, hydrogenated nitrile rubber, ethylene propylene diene monomer rubber and other heat-resistant materials can be adopted.
In the present embodiment, the upper portion of the heat source water pipe 1 is provided with the backflushing assembly 4, and the backflushing assembly 4 is provided above the rear side of the filter assembly 3. The backflushing assembly 4 includes a backflushing opening 41 open to the hot water line and a cover plate 42 covering the backflushing opening. The diameter of the back flushing hole 41 is 10 to 250mm, preferably 50 to 100mm. The recoil opening 41 and the cover plate 42 may be made of the same material as the heat source water pipeline, or may be made of a material resistant to corrosion and scouring by a medium, including but not limited to 2205 duplex stainless steel or other stainless steel materials, titanium alloys, high-strength low-alloy steel. The cover plate can be fixed and sealed by adopting a flange, a buckle, a spiral cover, a hinge and the like, and an elastic sealing piece is adopted for sealing, and according to the chemical composition and the temperature of a medium, heat-resistant materials such as fluororubber, silicon rubber, hydrogenated nitrile rubber, ethylene propylene diene monomer rubber and the like can be adopted.
The working principle of the embodiment is as follows: the slag-containing heat source water enters the heat source water pipeline 1, and at the moment, the drain outlet switch 23 and the cover plate 42 of the backflushing assembly are closed; the slag-containing heat source water flows through the obliquely arranged filtering component 3, larger particle dregs in the slag-containing heat source water are intercepted by the filtering component 3 through metal meshes, the slag-containing heat source water is filtered into heat source water without the larger particle dregs, and the heat source water enters a heat source water heat exchange tube of a water chilling unit or a heat pump unit, so that the heat exchange tube is prevented from being worn or deposited in the heat exchange tube; the large-particle dregs may enter the flow guide check plate 21 under the action of gravity and then enter the collection inclined hopper 22; and may also be caught by the water flow and temporarily rest on the filter assembly 3.
When the unit is in normal operation and the flow rate of the heat source water is reduced or stopped briefly, most of the dregs temporarily remained in the filter assembly 3 can be separated from the metal mesh under the action of gravity and enter the flow guide check plate 21, and are guided into the collecting inclined hopper 22 by the flow guide check plate 21, and the dregs are prevented from being stirred and re-flooded back under the action of water flow through the collecting hopper 22 and the flow guide check plate 21, so that the dregs are deposited in the collecting inclined hopper. When the dregs accumulate to a certain degree, a drain outlet switch 23 at the bottom of the collecting inclined hopper is opened to remove the dregs, so that larger granular dregs in the heat source water cannot enter a heat exchanger of a water chilling unit or a heat pump unit, and blockage and abrasion are avoided; and compared with the common filter, the filter is not easy to block, has small head loss, and reduces the shutdown caused by dirt removal.
If necessary, when more slag with special shape is possibly embedded in the metal mesh (resulting in increased pressure loss) after long-time operation, the cover plate 42 of the recoil assembly can be opened, and the embedded slag can be backwashed and removed by a high-pressure water gun and the like, so that the embedded slag falls into the dirt collecting assembly or is discharged through the dirt collecting assembly, and the operation is very simple and quick.
Claims (10)
1. The filtering and dirt collecting device for the absorption unit adopting the slag-containing heat source water is characterized by comprising a heat source water pipeline for conveying the slag-containing heat source water and a slag dirt discharging channel communicated with the heat source water pipeline; a filter assembly is arranged in the heat source water pipeline along the slag-containing heat source water flow path, and the filter assembly is arranged above the rear side of the slag sewage channel, so that slag intercepted by the filter assembly enters the slag sewage channel; the dreg blow-down channel is provided with a dreg collecting assembly for collecting dreg along the output path of the dreg; the output end of the heat source water pipeline is connected with a heat source water heat exchanger of the unit.
2. The filtration and containment device for an absorption unit utilizing waste heat source water containing slag of claim 1, wherein the filter assembly is inclined such that the slag intercepted by the filter assembly enters the containment assembly by gravity.
3. The filtering and dirt collecting device for the slag-containing heat source water adopted by the absorption unit according to claim 2, wherein the upper direction water facing side of the filtering assembly is inclined forwards, and the front inclination angle of the filtering assembly is 15-75 degrees.
4. The filtration and sewage collection device for an absorption unit using slag-containing heat source water according to claim 1, wherein the slag sewage channel is sequentially provided with a flow guide check plate, a collection inclined hopper and a sewage outlet switch along the output path of slag, so as to form the sewage collection assembly.
5. The filtering and sewage collecting device for the slag-containing heat source water adopted by the absorption unit according to claim 4, wherein the flow guide check plate and the collecting inclined hopper are of funnel-shaped structures, and the included angle between the flow guide check plate and the horizontal line is 15-75 degrees.
6. The filtering and dirt collecting device for the absorption unit adopting slag-containing heat source water according to claim 4, wherein the size of the middle channel of the flow guide check plate is 5-200 mm, and the size of the middle channel of the collecting inclined hopper is larger than that of the middle channel of the flow guide check plate; the drain outlet switch is arranged at the outlet end of the collecting inclined hopper.
7. The filtering and sewage collecting device for the absorption unit adopting the slag-containing heat source water according to claim 4, wherein the flow guide check plate is arranged in the slag sewage channel, and the periphery of the flow guide check plate is welded with the shell of the slag sewage channel or connected with the shell of the slag sewage channel through a fastener; the collecting inclined hopper is connected to the lower end of the dreg blow-down channel and is integrally formed or welded with the dreg blow-down channel.
8. The filtering and sewage collecting device for an absorption unit using slag-containing heat source water according to claim 1, wherein the upper portion of the heat source water pipe is provided with a back flushing assembly, and the back flushing assembly is disposed above the rear side of the filtering assembly.
9. The filtration and sewage collection device for an absorption unit using slag-containing heat source water according to claim 8, wherein the back flushing assembly comprises a back flushing opening formed in the heat source water pipe and a cover plate covering the back flushing opening; the diameter of the recoil open hole is 10-250 mm.
10. The filtering and dirt collecting device for the heat source water containing slag for the absorption unit according to claim 1, wherein the filtering part of the filtering component is a metal mesh, the aperture of the metal mesh is 2-25 mm, and the aperture of the metal mesh does not exceed the inner diameter of a heat exchange tube of a heat source water heat exchanger of the unit; the metal mesh adopts a flat plate, an arc-shaped plate, a wave pattern plate or a bending pattern plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322774156.2U CN221036252U (en) | 2023-10-17 | 2023-10-17 | A filter dirt collecting device for absorption unit adopts and contains sediment heat source water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322774156.2U CN221036252U (en) | 2023-10-17 | 2023-10-17 | A filter dirt collecting device for absorption unit adopts and contains sediment heat source water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221036252U true CN221036252U (en) | 2024-05-28 |
Family
ID=91134076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322774156.2U Active CN221036252U (en) | 2023-10-17 | 2023-10-17 | A filter dirt collecting device for absorption unit adopts and contains sediment heat source water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221036252U (en) |
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2023
- 2023-10-17 CN CN202322774156.2U patent/CN221036252U/en active Active
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