CN117824292A - High-efficient detachable multichannel liquid film strong cyclone washing cooling ring - Google Patents
High-efficient detachable multichannel liquid film strong cyclone washing cooling ring Download PDFInfo
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- CN117824292A CN117824292A CN202410146730.6A CN202410146730A CN117824292A CN 117824292 A CN117824292 A CN 117824292A CN 202410146730 A CN202410146730 A CN 202410146730A CN 117824292 A CN117824292 A CN 117824292A
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- 238000001816 cooling Methods 0.000 title claims abstract description 103
- 239000007788 liquid Substances 0.000 title claims abstract description 98
- 238000005406 washing Methods 0.000 title claims abstract description 98
- 238000009826 distribution Methods 0.000 claims abstract description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000000034 method Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005201 scrubbing Methods 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 3
- 239000000498 cooling water Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 12
- 238000003786 synthesis reaction Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 239000006229 carbon black Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000002309 gasification Methods 0.000 description 6
- 229910001293 incoloy Inorganic materials 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003090 exacerbative effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a high-efficiency detachable multi-channel liquid film strong rotational flow washing cooling ring which comprises a plurality of liquid inlet pipes, a chilling water distribution chamber with an opening at the upper end and a cavity formed in the chilling water distribution chamber, a baffle plate, an upper annular seal head, a lower annular distribution plate and a plurality of guide plates. The invention is provided with a baffle plate in the chilled water distribution chamber, and the baffle plate divides a cavity in the chilled water distribution chamber into two parts: a first cavity and a second cavity. The baffle plate enables chilled water entering the first cavity to flow to two sides rapidly, so that momentum distribution of the chilled water in the circumferential direction is promoted; and a guide plate which is uniformly distributed is arranged on the first straight plate of the lower annular distribution plate, and the guide plate performs secondary momentum distribution on chilled water from the chilled water distribution chamber, so that the uniformity of a liquid film in the circumferential direction is further promoted. After the cooling water flows through the guide plate, a liquid film which is formed by the cyclone descending and clings to the wall surface of the washing cooling pipe is formed, and the phenomena of wall drying and perforation of the washing cooling pipe are effectively avoided.
Description
Technical Field
The invention belongs to the field of synthesis gas washing, cooling and purifying components in the gasification technology of gaseous, liquid or solid carbonaceous substances, and particularly relates to a high-efficiency detachable multi-channel liquid film strong rotational flow washing and cooling ring.
Background
Entrained flow gasification technology is one of the technologies for clean and efficient utilization of gaseous, liquid or solid carbonaceous materials. In entrained flow gasification technology, carbonaceous material such as pulverized coal or coal water slurry is fed into a furnace with a gasifying agent to react to produce high temperature raw synthesis gas containing molten ash. In order to meet the requirements of the subsequent production process, the high-temperature crude synthesis gas containing molten ash or carbon black needs to be further washed, cooled and humidified, and the place for washing, cooling and humidifying the crude synthesis gas is a washing cooling chamber.
The washing and cooling chamber is used as one of the important components of entrained flow gasification technology, and plays a key role in the washing, cooling and humidifying processes of high-temperature raw gas. In an industrial washing cooling chamber, high-temperature crude synthesis gas (the temperature is 1200-1650 ℃) containing molten ash slag or carbon black flows out of a gasification chamber and then enters a washing cooling pipe, and the high-temperature crude synthesis gas flows in parallel with a liquid film in the washing cooling pipe and generates a severe phase change, so that the high-temperature crude synthesis gas containing the molten ash slag or carbon black is cooled to 200-300 ℃. With the large-scale entrained-flow gasification technology and the diversification of raw materials, the amount of the synthesis gas is increased, and the amount of the ash or carbon black in a molten state is also increased, so that the purification requirement on a washing and cooling device is also higher and higher.
At present, a plurality of vertical liquid distribution type washing cooling rings are applied in an industrial washing cooling chamber. The spatial distribution uniformity of the liquid film in the washing cooling pipe is poor under the influence of the structure of the vertical liquid distribution type washing cooling ring. This results in deformation, drying and perforation of the wash cooling tube wall due to uneven thermal stress, further exacerbating the fluctuation and spatial non-uniformity of the liquid film. The above-mentioned abominable operating mode will lead to washing cooling chamber industrial operation's efficiency and stability to reduce, and then has influenced the industrial operation stability and the security of entrained flow gasifier.
Disclosure of Invention
In order to solve the problems of deformation, dry wall and perforation of the pipe wall caused by uneven spatial distribution of the thickness of the liquid film in the washing cooling pipe in the prior art, the invention provides a high-efficiency detachable multi-channel liquid film strong rotational flow washing cooling ring so as to realize good washing and cooling effects and prolong the service life of the washing cooling pipe.
The technical scheme adopted by the invention is as follows:
the first aspect of the invention provides a high-efficiency detachable multi-channel liquid film strong rotational flow washing cooling ring, which comprises a plurality of liquid inlet pipes, a chilled water distribution chamber with an opening at the upper end and a cavity formed in the inner part, a baffle plate, an upper annular seal head, a lower annular distribution plate and a plurality of guide plates; the inside of the washing and cooling ring is hollow, and the top of the washing and cooling ring is provided with a gas phase inlet; the outer side wall of the chilled water distribution chamber is communicated with the liquid inlet pipe, the upper end of the inner side wall of the chilled water distribution chamber extends inwards to form a semicircular ring, and the lower end of the inner side wall of the chilled water distribution chamber extends downwards and is fixedly connected with the washing cooling pipe; the upper annular seal head comprises a first annular section with a downward opening and a first horizontal plate extending outwards from the upper end of the first annular section; the lower annular distribution plate comprises a second annular section with an upward opening, and a first straight plate extending from the lower end of the second annular section to the lower side;
the baffle plate comprises a second straight plate and a second horizontal plate which extends outwards from the upper end of the second straight plate, the second annular horizontal plate of the baffle plate is fixedly connected with the first horizontal plates on the upper side and the lower side of the second annular horizontal plate and the upper end of the outer side wall of the chilled water distribution chamber, the second straight plate divides a cavity in the chilled water distribution chamber into a second cavity and a first cavity on the inner side and the outer side, and the bottoms of the first cavity and the second cavity are communicated;
the first annular section of the upper annular seal head is connected with the second annular section of the lower annular distribution plate through threads, a semicircular ring section with an outward opening is formed, and an annular film forming liquid discharge gap is formed between the semicircular ring section and the semicircular ring of the inner side wall of the chilling distribution chamber and is communicated with the upper end of the second cavity of the chilling water distribution chamber; the inner side wall of the guide plate is fixed on the first straight plate of the lower annular distribution plate and is uniformly distributed along the circumferential direction of the first straight plate, and the outer side wall of the guide plate is attached to the inner side wall of the chilled water distribution chamber; swirl channels are formed between adjacent guide plates.
Further, the number of the liquid inlet pipes is 4-8; the length of the washing cooling pipe is 0.2-10 m.
Further, the length of the second straight plate of the baffle plate is 30-60 mm.
Further, the length of the first straight plate in the lower annular distribution plate is 0-50 mm.
Further, the guide plates on the first straight plate of the lower annular distribution plate are parallel to each other, and the width of a rotational flow channel formed between adjacent guide plates is 1-5 mm.
Further, the arrangement density of the guide plates is 10-30 degrees/block.
Preferably, the material of the washing cooling ring is selected from conventional materials suitable for high-temperature and high-pressure environments in the field, such as 1-1/4Cr-1/2Mo (SA 387Gr11Cl 2), surfacing AISI316L (equivalent to domestic CoCr17Ni13Mo 2) or composite 316L; the deflector is selected from materials which are wear-resistant and corrosion-resistant in the art; the washing cooling pipe is made of Incoloy 825 or a combination of Incoloy 825 and carbon steel/stainless steel.
Further, the guide plate is of a spiral structure, and the included angle alpha between the guide plate and the horizontal plane is 5-30 degrees; the length of the guide plate is 10-20 mm, and the width of the guide plate is 3-10 mm; correspondingly, the width of the annular film forming liquid discharging gap is the same as the width of the guide plate.
Preferably, the included angle alpha between each deflector and the horizontal plane is the same.
The second aspect of the invention aims at providing a gasifier adopting the high-efficiency detachable multi-channel liquid film strong rotational flow washing cooling ring.
The third aspect of the present invention provides a washing and cooling process using the above-mentioned high-efficiency detachable multi-channel liquid film strong rotational flow washing and cooling ring, comprising the following steps:
the chilled water enters the washing cooling ring from the liquid inlet, and after the two momentum distributions of the baffle plate and the guide plate, a rotational flow liquid film clung to the wall surface of the washing cooling pipe is formed, the high-temperature crude synthetic gas containing molten ash or carbon black enters the washing cooling ring from the gas phase inlet, and flows downwards in parallel with the rotational flow liquid film formed by the chilled water, and gas-liquid two-phase heat mass transfer is carried out in the washing cooling pipe, so that the washing cooling of the high-temperature crude synthetic gas is realized.
Further, the operating state flow rate of the high temperature crude synthesis gas is 2-12 m/s, preferably 2-6 m/s; the chilled water temperature is 100-300 ℃, preferably 150-160 ℃.
The invention has the following beneficial effects:
1. the invention is provided with a baffle plate in the chilled water distribution chamber, and the baffle plate divides a cavity in the chilled water distribution chamber into two parts: a first cavity and a second cavity. The baffle plate enables the chilled water entering the first cavity of the chilled water distribution chamber to flow to two sides rapidly, so that the momentum distribution of the chilled water in the circumferential direction is promoted; the second cavity has smaller volume, reduces the flow required by film formation, and reduces the interference of flow fluctuation on film formation.
2. The invention also provides a plurality of guide plates which are uniformly distributed on the first straight plate of the lower annular distribution plate, and the guide plates perform secondary momentum distribution on chilled water from the chilled water distribution chamber, so that the uniformity of a liquid film in the circumferential direction is further promoted. The liquid film which falls in the rotational flow is formed after the chilled water flows through the guide plate, and is influenced by the centrifugal force generated by the rotational flow and is clung to the wall surface of the washing cooling pipe, so that the phenomena of wall drying and perforation of the washing cooling pipe are effectively avoided.
3. The guide plates are uniformly arranged in the invention, so that the thickness of the generated rotational flow liquid film is also uniform in the circumferential direction of the same height, the difference of the heat transfer coefficients of the liquid film in the circumferential direction of the washing cooling pipe is reduced, the probability of deformation of the washing cooling pipe caused by uneven distribution of high-temperature thermal stress is reduced, and the washing cooling pipe is better protected and the service life of the washing cooling pipe is prolonged.
4. The guide plate is fixed on a first straight plate of a lower annular distribution plate, and the lower annular distribution plate is connected with an upper annular seal head through threads. In industrial production, the optimal guide plate structure parameters, the length of the first straight plate and the width of the annular film forming liquid discharge gap can be adjusted according to working conditions, so that the processing cost and the installation time of the washing cooling ring are saved.
5. The baffle plate can effectively distribute the momentum of the liquid film, and even if a centrifugal pump for conveying chilled water fails, the baffle plate can distribute the momentum of the chilled water well as long as the number of the normal chilled water inlet pipes is more than or equal to 1, thereby ensuring the stable operation of the washing cooling ring.
Drawings
FIG. 1 is a schematic cross-sectional view of the right half of the cyclone wash cooling ring of the present invention.
Fig. 2 is a front view of a swirl cooling ring.
FIG. 3 is a schematic cross-sectional view of the chilled water dispenser chamber and its internal cavity.
Fig. 4 is a schematic cross-sectional structure of the upper annular seal head.
Fig. 5 is a schematic cross-sectional structure of the lower annular distribution plate.
Fig. 6 is a schematic perspective view of a baffle.
Fig. 7 is an elevation view of the baffle welded to the lower annular distribution plate.
FIG. 8 is a graph of circumferential uniformity of the thickness of a swirling liquid film at different locations from a gas phase inlet.
In the figure: 1-a liquid inlet pipe; 2-chilling water distribution chamber; 21-semicircle ring; 22-a first cavity; 23-a second cavity; 3-baffle plate; 31-a second straight plate; 32-a second horizontal plate; 4-upper annular seal head; 41-a first ring segment; 42-a first horizontal plate; 5-a lower annular distribution plate; 51-a second ring segment; 52-a first straight plate; 6-deflector.
Detailed Description
The technical scheme of the invention is clearly and specifically described below through specific embodiments with reference to the accompanying drawings. It should be understood that the following examples are only some, but not all, of the examples of the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, the high-efficiency detachable multi-channel liquid film strong rotational flow washing cooling ring comprises a plurality of liquid inlet pipes 1, a chilling water distribution chamber 2 with an open upper end and a cavity formed inside, a baffle plate 3, an upper annular seal head 4, a lower annular distribution plate 5 and a plurality of guide plates 6; the inside of the washing and cooling ring is hollow, and the top of the washing and cooling ring is provided with a gas phase inlet;
referring to fig. 3, the outer side wall of the chilled water distribution chamber 2 is communicated with the liquid inlet pipe 1, the upper end of the inner side wall of the chilled water distribution chamber extends inwards to form a semicircular ring 21, and the lower end of the inner side wall of the chilled water distribution chamber extends downwards and is fixedly connected with the washing cooling pipe 7 through a flange; as shown in fig. 4, the upper annular seal head 4 includes a first annular segment 41 with a downward opening, and a first horizontal plate 42 extending outward from an upper end of the first annular segment 41; as shown in fig. 5, the lower annular distribution plate 5 includes a second annular section 51 having an opening facing upward, and a first straight plate 52 extending downward from a lower end of the second annular section 51;
returning to fig. 3, the baffle plate 3 comprises a second straight plate 31 and a second horizontal plate 32 extending outwards from the upper end of the second straight plate 31, the second horizontal plate 32 of the baffle plate 3 is fixedly connected with the first horizontal plate 42 on the upper side and the lower side of the baffle plate and the upper end of the outer side wall of the chilled water distribution chamber 2, the second straight plate 31 divides a cavity in the chilled water distribution chamber 2 into a second cavity 23 and a first cavity 22 on the inner side and the outer side, and the bottoms of the first cavity 22 and the second cavity 23 are communicated;
returning to fig. 1, the first ring section 41 of the upper annular seal head 4 and the second ring section 51 of the lower annular distribution plate 5 are connected by threads, and form a semicircular ring section with an outward opening, and an annular film forming liquid discharge gap is formed between the semicircular ring section and the semicircular ring 21 of the inner side wall of the chilling distribution chamber 2 and is communicated with the upper end of the second cavity 23 of the chilling water distribution chamber 2; the inner side wall of the deflector 6 is fixed on the first straight plate 52 of the lower annular distribution plate 5 by welding, and is uniformly distributed along the circumferential direction of the first straight plate 52, the outer side wall of the deflector is attached to the inner side wall of the chilled water distribution chamber 2, and a rotational flow channel is formed between the adjacent deflector 6.
Further, the number of the liquid inlet pipes 1 is 4-8; the length of the washing cooling pipe 7 is 0.2-10 m.
Further, the length of the second straight plate 31 of the baffle plate 3 is 30-60 mm, and the baffle plate 3 can better perform momentum distribution on the chilled water entering the chilled water distribution chamber 2, so that the chilled water is uniformly distributed in the circumferential direction.
When the length of the second straight plate 31 of the baffle 3 is less than 30mm, although the chilled water flowing into the swirling flow passage has a small flow resistance, the chilled water tends to accumulate at the liquid inlet pipe 1 and cause uneven distribution of the liquid film in the circumferential direction to some extent; when the length of the second straight plate of the baffle plate 3 is greater than 60mm, chilled water flowing into the cyclone channel has excessive flow resistance, resulting in uneven distribution of the liquid film in the circumferential direction.
In industrial production, the occurrence of burst conditions, such as failure of chilled water pumps, can have a significant impact on the stable operation of the wash cooling chamber. When the high-efficiency detachable multi-channel liquid film strong rotational flow washing cooling ring is adopted, even if a chilled water pump fails, the quantity of the chilled water inlet pipes 1 which only need to work normally is not less than 1, and the chilled water can be well distributed through the baffle plate 3, so that the stable operation of the washing cooling ring is ensured.
Further, the length of the first straight plate 52 in the lower annular distribution plate 5 is 0 to 50mm.
Further, the guide plates 6 on the first straight plate 52 of the lower annular distribution plate 5 are parallel to each other, and the width of the swirling flow channel formed between the adjacent guide plates 6 is 1-5 mm.
Further, the arrangement density of the guide plates 6 is 10-30 degrees/block, so that the uniform distribution of the liquid film is ensured, and a good downward flow effect of the strong rotational flow of the liquid film is realized.
Preferably, the material of the washing cooling ring is selected from conventional materials suitable for high-temperature and high-pressure environments in the field, such as 1-1/4Cr-1/2Mo (SA 387Gr11Cl 2), surfacing AISI316L (equivalent to domestic CoCr17Ni13Mo 2) or composite 316L; the deflector 6 is selected from materials that are wear and corrosion resistant in the art; the material of the washing cooling pipe 7 is Incoloy 825 or a combination of Incoloy 825 and carbon steel/stainless steel.
Further, as shown in fig. 6 and 7, the baffle 6 has a spiral structure, and an included angle α between the baffle and a horizontal plane is 5-30 °; the length L of the guide plate 6 is 10-20 mm, and the width W is 3-10 mm; correspondingly, the width of the annular film forming liquid discharge gap is the same as the width of the guide plate 6. Preferably, the angle α between each baffle 3 and the horizontal is the same.
In the invention, the upper annular sealing head 4 and the lower annular distribution plate 5 are connected by screw threads, so that the structural parameters of the guide plate 6, the width of the annular film forming liquid discharging gap and the length of the first straight plate 52 on the lower annular distribution plate 5 can be conveniently adjusted according to actual working conditions.
After preliminary momentum distribution is carried out on the chilled water in the chilled water distribution chamber 2, the chilled water enters an annular film forming liquid discharge gap, flows downwards through the guide plates 6, and changes the flow direction from vertical flow to spiral flow along the direction of the guide plates 6 under the guide action of the guide plates 6. The liquid film speed of the chilled water flowing through the guide plate 6 can be kept between 0.5 and 6m/s by adjusting the included angle alpha between the guide plate 3 and the horizontal plane. Because the guide plate 6 and the horizontal surface are in an inclined state, the chilled water enters the washing cooling pipe 7 at a corresponding inclined angle and flows downwards along the wall surface of the washing cooling pipe 7 in an inclined way, and simultaneously, the spiral flow downwards flows, namely, the chilled water forms a rotational flow liquid film in the washing cooling pipe 7, and the rotational flow angle and the rotational flow strength of the rotational flow liquid film can be adjusted by adjusting the included angle alpha.
The rotational flow speed of the rotational flow liquid film can be decomposed into axial, circumferential and normal separating speeds, wherein the axial separating speed accelerates the rotational flow liquid film along the gravity direction, so that the thickness of the rotational flow liquid film is thinned; the rotational flow liquid film circumferentially flows along the wall surface of the washing cooling pipe 7 by the circumferential velocity so as to be distributed and wetted in the circumferential direction; the normal partial velocity is generated by centrifugal force, which causes the liquid film to flow against the wall surface of the washing cooling tube 7.
In the running process of the industrial washing cooling chamber, the conventional vertical liquid distribution type washing cooling ring ensures that the thickness space distribution of the liquid film is uneven, so that the liquid film is separated from the wall surface of the washing cooling pipe 7, and the position of the washing cooling pipe 7 is deviated from the gravity direction. This causes the liquid film to be detached from the wall surface of the washing cooling tube 7, and a dry wall phenomenon occurs, eventually resulting in damage to the washing cooling tube 7.
The cyclone liquid film formed by the high-efficiency detachable multi-channel liquid film strong cyclone washing cooling ring has larger centrifugal force, so that the cyclone liquid film closely clings to the wall surface to flow, and the larger centrifugal force also enables the wall surface shearing force of the cyclone liquid film to be larger than gravity, thereby promoting accumulation of liquid film quality on the wall surface to a certain extent, and avoiding thinning of the liquid film and even generation of dry wall phenomenon. Meanwhile, compared with a vertical liquid film, the cyclone liquid film has a larger flow speed in the washing cooling pipe 7 under the same operation condition, so that the liquid film surface updating speed is increased, and the problem of thin liquid film thickness caused by a severe gas-liquid two-phase heat and mass transfer process is avoided. In conclusion, the invention realizes good protection of the washing cooling pipe 7 and prolongs the service life of the washing cooling pipe 7.
As shown in FIG. 2, a washing and cooling process adopting the high-efficiency detachable multi-channel liquid film strong rotational flow washing and cooling ring comprises the following steps:
the chilled water enters the washing cooling ring from the liquid inlet, and after the two momentum distributions of the baffle plate 3 and the guide plate 6, a rotational flow liquid film clung to the wall surface of the washing cooling pipe 7 is formed, the high-temperature crude synthetic gas containing molten ash or carbon black enters the washing cooling ring from the gas phase inlet, and flows downwards in parallel with the rotational flow liquid film formed by the chilled water, and gas-liquid two-phase heat mass transfer is carried out in the washing cooling pipe 7, so that the washing cooling of the high-temperature crude synthetic gas is realized.
Further, the operating state flow rate of the high temperature crude synthesis gas is 2-12 m/s, preferably 2-6 m/s; the chilled water temperature is 100-300 ℃, preferably 150-160 ℃.
As shown in fig. 8 (where z is the distance to the gas phase inlet), the uniformity of the thickness of the swirling liquid film in the circumferential direction within the main heat exchange zone (within 300mm of the gas phase inlet) can be characterized by the relative standard deviation (Relative standard deviation, RSD). As is clear from the results of fig. 8, the maximum value of the thickness RSD of the swirling liquid film generated by the washing and cooling ring of the present invention in the main heat exchange area was 5.83%, which indicates that the uniformity in the circumferential direction was good.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The high-efficiency detachable multi-channel liquid film strong rotational flow washing cooling ring is characterized by comprising a plurality of liquid inlet pipes, a chilled water distribution chamber with an opening at the upper end and a cavity formed in the inner part, a baffle plate, an upper annular seal head, a lower annular distribution plate and a plurality of guide plates; the inside of the washing and cooling ring is hollow, and the top of the washing and cooling ring is provided with a gas phase inlet; the outer side wall of the chilled water distribution chamber is communicated with the liquid inlet pipe, the upper end of the inner side wall of the chilled water distribution chamber extends inwards to form a semicircular ring, and the lower end of the inner side wall of the chilled water distribution chamber extends downwards and is fixedly connected with the washing cooling pipe; the upper annular seal head comprises a first annular section with a downward opening and a first horizontal plate extending outwards from the upper end of the first annular section; the lower annular distribution plate comprises a second annular section with an upward opening, and a first straight plate extending from the lower end of the second annular section to the lower side;
the baffle plate comprises a second straight plate and a second horizontal plate which extends outwards from the upper end of the second straight plate, the second annular horizontal plate of the baffle plate is fixedly connected with the first horizontal plates on the upper side and the lower side of the second annular horizontal plate and the upper end of the outer side wall of the chilled water distribution chamber, the second straight plate divides a cavity in the chilled water distribution chamber into a second cavity and a first cavity on the inner side and the outer side, and the bottoms of the first cavity and the second cavity are communicated;
the first annular section of the upper annular seal head is connected with the second annular section of the lower annular distribution plate through threads, a semicircular ring section with an outward opening is formed, and an annular film forming liquid discharge gap is formed between the semicircular ring section and the semicircular ring of the inner side wall of the chilling distribution chamber and is communicated with the upper end of the second cavity of the chilling water distribution chamber; the inner side wall of the guide plate is fixed on the first straight plate of the lower annular distribution plate and is uniformly distributed along the circumferential direction of the first straight plate, and the outer side wall of the guide plate is attached to the inner side wall of the chilled water distribution chamber; swirl channels are formed between adjacent guide plates.
2. The efficient detachable multi-channel liquid film strong rotational flow washing cooling ring according to claim 1, wherein the number of the liquid inlet pipes is 4-8; the length of the washing cooling pipe is 0.2-10 m.
3. The efficient removable multi-channel liquid film strong swirl washing cooling ring of claim 1, wherein the second straight plate of the baffle plate has a length of 30-60 mm.
4. The efficient detachable multi-channel liquid film strong rotational flow washing cooling ring according to claim 1, wherein the length of the first straight plate in the lower annular distribution plate is 0-50 mm.
5. The efficient detachable multi-channel liquid film strong rotational flow washing cooling ring according to claim 1, wherein guide plates on a first straight plate of the lower annular distribution plate are parallel to each other, and the width of rotational flow channels formed between adjacent guide plates is 1-5 mm.
6. The efficient detachable multi-channel liquid film strong rotational flow washing cooling ring according to claim 1, wherein the arrangement density of the guide plates is 10-30 °/block.
7. The efficient detachable multi-channel liquid film strong rotational flow washing cooling ring according to claim 1, wherein the guide plate is of a spiral structure, and an included angle alpha between the guide plate and a horizontal plane is 5-30 degrees; the length of the guide plate is 10-20 mm, and the width of the guide plate is 3-10 mm; correspondingly, the width of the annular film forming liquid discharging gap is the same as the width of the guide plate.
8. A gasifier employing the high efficiency removable multi-channel liquid film strong swirl washing cooling ring of any one of claims 1 to 7.
9. A washing and cooling process adopting the high-efficiency detachable multi-channel liquid film strong rotational flow washing and cooling ring as claimed in any one of claims 1 to 7, which is characterized by comprising the following steps:
the chilled water enters the washing cooling ring from the liquid inlet, and after the two momentum distributions of the baffle plate and the guide plate, a rotational flow liquid film clung to the wall surface of the washing cooling pipe is formed, the high-temperature coarse synthetic gas containing molten ash enters the washing cooling ring from the gas phase inlet, and flows downwards in parallel with the rotational flow liquid film formed by the chilled water, and gas-liquid two-phase heat mass transfer is carried out in the washing cooling pipe, so that the washing and cooling of the high-temperature coarse synthetic gas are realized.
10. The scrubbing and cooling process of claim 9, wherein said high temperature raw syngas has an operating state flow rate of 2-12 m/s; the temperature of the chilled water is 100-300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410146730.6A CN117824292A (en) | 2024-02-02 | 2024-02-02 | High-efficient detachable multichannel liquid film strong cyclone washing cooling ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410146730.6A CN117824292A (en) | 2024-02-02 | 2024-02-02 | High-efficient detachable multichannel liquid film strong cyclone washing cooling ring |
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| Publication Number | Publication Date |
|---|---|
| CN117824292A true CN117824292A (en) | 2024-04-05 |
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ID=90515674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410146730.6A Pending CN117824292A (en) | 2024-02-02 | 2024-02-02 | High-efficient detachable multichannel liquid film strong cyclone washing cooling ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117824292A (en) |
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- 2024-02-02 CN CN202410146730.6A patent/CN117824292A/en active Pending
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