CN210728717U

CN210728717U - Flash tank for improving dryness of flash steam

Info

Publication number: CN210728717U
Application number: CN201921493541.7U
Authority: CN
Inventors: 郭维平
Original assignee: China Tobacco Yunnan Reconstituted Tobacco Co Ltd
Current assignee: China Tobacco Yunnan Reconstituted Tobacco Co Ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-06-12
Anticipated expiration: 2029-09-09

Abstract

The utility model discloses an improve flash tank of flash distillation steam quality, including a jar body, feed liquor pipe, play steam pipe, defoaming conical body, water conservancy diversion defoaming section of thick bamboo, first sluicing space, second sluicing space, relief valve takeover, drain pipe and blow off pipe etc.. A liquid inlet pipe is arranged at the upper part of the tank body, a plane defoaming plate is arranged below the liquid inlet pipe in the tank body, and a hole is formed in the plane defoaming plate; the jar body top be provided with out the steam pipe, and the lower part of going out the steam pipe is provided with and stretches into jar interior pipeline to the outside that stretches into jar interior pipeline is provided with water conservancy diversion and removes the foam section of thick bamboo, and the lower extreme that stretches into jar interior pipeline and water conservancy diversion simultaneously removes the foam section of thick bamboo is provided with the defoaming conical body. The flash tank for improving the dryness of the flash steam has the characteristics of simple manufacture, convenient use, full separation of steam and liquid, high quality of the flash steam and the like, is favorable for improving the heating efficiency of equipment using the flash steam, and is beneficial to improving the energy conservation, consumption reduction and clean production level of enterprises.

Description

Flash tank for improving dryness of flash steam

Technical Field

The utility model relates to a flash tank technical field specifically is a flash tank of improvement flash distillation steam quality.

Background

The flash tank is an important energy-saving device used in the industries of light industry, chemical industry, metallurgy, building materials and the like, and is commonly used for recovering waste heat of steam condensate. When the flash tank is used, condensed water enters the tank along the tangent line or the radial direction of the outer circumference of the flash tank, and the condensed water expands in the tank, reduces the pressure and the boiling point, so as to generate flash steam; the flash steam is introduced into a low-pressure steam pipeline or is led out through an ejector to be used by heat equipment. Moisture entrained in steam is a major factor affecting steam quality.

The existing vertical flash tank is provided with a horizontal metal orifice plate or a wire mesh defoaming plate, a guide cylinder and other components at the upper part in the tank, so as to solve the problems of poor vapor-liquid separation and entrainment of water foam in flash steam. However, the vapor and liquid in the flash tank with the structure are difficult to be fully separated, the flash steam contains much moisture, and the dryness of the extracted flash steam is low and the quality is poor. By adopting the flash tank, the waste heat of condensed water can not be fully utilized, the efficiency of using heat equipment for flash steam can be reduced, and the energy conservation, consumption reduction and clean production of enterprises are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improve flash tank of flash distillation vapour dryness fraction to solve the current vertical flash tank that proposes in the above-mentioned background art, horizontal metal orifice plate or silk screen defoaming board, members such as draft tube are established to upper portion in the jar, flash tank vapour liquid is difficult to the abundant separation, flash distillation vapour smugglies moisture secretly many, the flash distillation vapour dryness fraction of drawing forth is low, the poor quality, the waste heat of the water of condensation of can not make full use of, still can reduce the efficiency of using the vapour heat equipment of flash distillation, also influence enterprise energy saving and consumption reduction, cleaner production's problem.

In order to achieve the above object, the utility model provides a following technical scheme: in order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an improve flash tank of flash distillation steam quality, includes a jar body, feed liquor pipe, play steam pipe, defoaming conical body, water conservancy diversion defoaming section of thick bamboo, first sluicing space, second sluicing space, relief valve takeover, drain pipe and blow off pipe etc.. A liquid inlet pipe is arranged at the upper part of the tank body, a plane defoaming plate is arranged below the liquid inlet pipe in the tank body, a hole is formed in the plane defoaming plate, and a liquid accumulation area is arranged below the plane defoaming plate; the top of the tank body is provided with a steam outlet pipe, the lower part of the steam outlet pipe is provided with a pipeline extending into the tank, the outer side of the pipeline extending into the tank is provided with a diversion defoaming cylinder, and the lower ends of the pipeline extending into the tank and the diversion defoaming cylinder are provided with inverted defoaming cones; the defoaming conical body is a cone with the same outer diameter of a conical bottom and the same inner diameter of the tank body, and is made by rolling a steel plate; a second diffusion area and a first diffusion area are respectively arranged between the pipeline extending into the tank and the flow guide defoaming cylinder and between the flow guide defoaming cylinder and the defoaming conical body; a first steam through hole is formed in the conical surface of the defoaming conical body corresponding to the first diffusion area; a third vent hole and a second vent hole are respectively arranged on the pipeline extending into the tank and the flow guide defoaming cylinder; the safety valve connecting pipe is arranged at the peripheral position of the steam outlet pipe at the top of the tank body; the upper liquid level transmitter connecting pipe is arranged at the upper part of the tank body, and the lower liquid level transmitter connecting pipe is arranged at the lower part of the tank body and right below the upper liquid level transmitter connecting pipe; the liquid outlet pipe is positioned at the lower part of the tank body and is arranged in a staggered manner with the connecting pipe of the lower liquid level transmitter; the blow-off pipe is positioned at the bottom end of the tank body, the pressure gauge connecting pipe is positioned at the top of the tank body, and the pressure gauge connecting pipe and the safety valve connecting pipe on the periphery of the steam outlet pipe are arranged in a staggered mode. The first steam through hole, the second steam through hole and the third steam through hole can be in the shapes of round holes, vertical elongated holes, oblique elongated holes and the like.

Preferably, the steam outlet pipe is concentric with the pipeline extending into the tank, the length of the steam outlet pipe extending into the tank is 2-3 times of the outer diameter of the steam outlet pipe, and the total area of third steam through holes distributed on the surface of the pipeline extending into the tank is 0.8-1.2 times of the area of the section of the steam outlet pipe.

Preferably, the diversion defoaming cylinder is concentric with a pipeline extending into the tank, the outer diameter of the diversion defoaming cylinder is 1/3-1/2 of the inner diameter of the tank, and the total area of second through holes distributed on the wall of the diversion defoaming cylinder is 0.6-1.0 time of the area of the section of the cylinder.

Preferably, the concentric defoaming conical body is arranged at the lower ends of the pipeline extending into the tank and the flow guide defoaming cylinder, the central conical angle of the defoaming conical body is 100-160 degrees, and meanwhile, a drainage hole with the diameter of 10-20 mm is processed at the center of the conical top of the defoaming conical body.

Preferably, the total area of the first steam through holes on the conical surface of the defoaming cone corresponding to the first diffusion area is 0.3-0.5 times of the area of the conical surface.

Preferably, remove and be provided with first sluicing space and second sluicing space between the conical surface in the foam conical body and stretch into the interior pipeline of jar and the foam section of thick bamboo terminal surface is removed in the water conservancy diversion respectively, and the height in first sluicing space and second sluicing space is 3 ~ 8 mm.

Compared with the prior art, the beneficial effects of the utility model are that: this flash tank of improvement flash steam quality, through extension flash tank steam outlet pipe, the steam outlet pipe that sets up the regular orderly arrangement's of processing logical steam hole in jar upper portion stretches into jar interior pipeline, stretch into jar endocentric water conservancy diversion defoaming section of thick bamboo of pipeline with steam outlet pipe and steam outlet pipe, stretch into jar interior pipeline and the endocentric defoaming cone of water conservancy diversion defoaming section of thick bamboo with steam outlet pipe and steam outlet pipe, and by the diffusion zone of logical steam hole intercommunication, make flash steam lead to the steam hole, the diffusion zone is drawn forth the in-process that flows and is received many times compression, effects such as diffusion, realize vapour-liquid fully separation, reduce flash steam and smuggle liquid volume secretly, improve flash steam quality.

Drawings

FIG. 1 is a schematic view of the internal structure of the tank of the present invention;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1 according to the present invention;

fig. 3 is a schematic view of the top view structure of the planar defoaming plate of the present invention.

In the figure: 1. a tank body; 2. a liquid inlet pipe; 3. a planar defoaming plate; 4. a hole; 5. a liquid accumulation area; 6. a steam outlet pipe; 7. extending into a pipeline in the tank; 8. a defoaming conical body; 9. a first vent hole; 10. a flow guiding defoaming cylinder; 11. a first diffusion region; 12. a second vent hole; 13. a second diffusion region; 14. a third steam vent; 15. A water drain hole; 16. a first drainage void; 17. a second drainage void; 18. a safety valve connecting pipe; 19. a liquid outlet pipe; 20. an upper level transmitter adapter; 21. a lower level transmitter adapter; 22. a blow-off pipe; 23. the manometer takes over.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an improve flash tank of flash distillation steam dryness fraction, includes a jar body 1, feed liquor pipe 2, plane defoaming board 3, hole 4, amalgamation district 5, play steam pipe 6, stretch into jar interior pipeline 7, defoaming conical body 8, first steam vent 9, water conservancy diversion defoaming section of thick bamboo 10, first diffusion zone 11, second steam vent 12, second diffusion zone 13, third steam vent 14, outlet 15, first sluicing space 16, second sluicing space 17, relief valve takeover 18, drain pipe 19, upper liquid level transducer takeover 20, lower liquid level transducer 21, blow off pipe 22 and manometer takeover 23. The upper portion of jar body 1 is provided with

feed liquor pipe

2, and 2 below of feed liquor pipe in the jar are provided with the plane and remove foam board 3 to the hole 4 has been seted up on the foam board 3 to the plane, and the below that the foam board 3 was removed to the plane simultaneously is provided with long-pending liquid district 5. The top of the tank body 1 is provided with a steam outlet pipe 6, the lower part of the steam outlet pipe 6 is provided with a pipeline 7 extending into the tank, the outer side of the pipeline 7 extending into the tank is provided with a diversion defoaming cylinder 10, and the inverted defoaming cone 8 is placed at the lower end of the pipeline 7 and the diversion defoaming cylinder 10 extending into the tank. A second diffusion area 13 and a first diffusion area 11 are respectively arranged between the pipeline 7 extending into the tank and the flow guide defoaming cylinder 10 and between the defoaming conical body 8 and the flow guide defoaming cylinder 10. A first steam through hole 9 is formed on the conical surface of the defoaming conical body 8 corresponding to the first diffusion area 11; a third vent hole 14 and a second vent hole 12 are respectively arranged on the pipeline 7 extending into the tank and the diversion defoaming cylinder 10. The center of the cone top of the defoaming conical body 8 is provided with a drainage hole 15 with the diameter of 10 mm-20 mm. The safety valve connecting pipe 18 is arranged at the peripheral position of the steam outlet pipe 6 at the top of the tank body 1; the upper liquid level transmitter connecting pipe 20 is arranged at the upper part of the tank body 1, and the lower liquid level transmitter connecting pipe 21 is arranged at the lower part of the tank body 1 and right below the upper liquid level transmitter connecting pipe 20; the liquid outlet pipe 19 is positioned at the lower part of the tank body 1 and is arranged in a staggered way with the connecting pipe 21 of the lower liquid level transmitter; the sewage drain 22 is located at the bottom end of the tank 1. The pressure gauge connecting pipe 23 is positioned at the top of the tank body 1 and is arranged in a staggered way with the safety valve connecting pipe 18 at the periphery of the steam outlet pipe 6. The first steam through hole 9, the second steam through hole 12 and the third steam through hole 14 can be in the shape of circular holes, vertical elongated holes, oblique elongated holes and the like.

The steam outlet pipe 6 is concentric with the pipeline 7 extending into the tank, the length of the pipeline 7 extending into the tank is 2-3 times of the outer diameter of the pipeline, and the total area of third steam through holes 14 distributed on the surface of the pipeline 7 extending into the tank is 0.8-1.2 times of the area of the section of the pipe.

The diversion defoaming cylinder 10 is concentric with the pipeline 7 extending into the tank, the outer diameter of the diversion defoaming cylinder 10 is 1/3-1/2 of the inner diameter of the tank body 1, and the total area of the second through holes 12 distributed on the wall of the diversion defoaming cylinder 10 is 0.6-1.0 times of the cross-sectional area of the cylinder.

A concentric defoaming conical body 8 is arranged at the lower end of the pipeline 7 extending into the tank and the lower end of the diversion defoaming cylinder 10, the central conical angle of the defoaming conical body 8 is 100-160 degrees, and a drainage hole 15 with the diameter of 10-20 mm is processed at the center of the conical top of the defoaming conical body 8.

The total area of the first steam through holes 9 on the conical surface of the defoaming conical body 8 corresponding to the first diffusion area 11 is 0.3-0.5 times of the area of the conical surface.

A first water drainage gap 16 and a second water drainage gap 17 are respectively arranged between the inner conical surface of the defoaming conical body 8 and the end surface of the water guide defoaming cylinder 10 and the inner conical surface of the tank-extending pipeline 7, and the height of the first water drainage gap 16 and the height of the second water drainage gap 17 are 3-8 mm. This arrangement allows the defoaming water to flow into the drain holes 15 through the first drain gaps 16 and the second drain gaps 17 and to fall into the liquid collecting area 5.

The working principle is as follows: when the flash tank for improving the dryness of flash steam is used, as shown in figures 1-3, condensed water enters the tank through a liquid inlet pipe 2 on the tank body 1 for expansion, pressure reduction and boiling point reduction to generate flash steam, the non-flash-evaporated condensed water is converged into a liquid accumulation area 5 at the lower part in the tank through a hole 4 on a plane defoaming plate 3, under the drainage action of a low-pressure pipeline and an ejector which are externally connected with a steam outlet pipe 6, the flash steam rises through a first steam through hole 9 on a defoaming cone 8 which is concentric with an extending-in tank pipeline 7 and a diversion defoaming cylinder 10 which are connected with the steam outlet pipe 6, a second steam through hole 11 on the diversion defoaming cylinder 10 which is concentric with the extending-in tank pipeline 7 and is connected with the steam outlet pipe 6, a third steam through hole 14 on the extending-in tank pipeline 7 and a first diffusion area 11 and a second diffusion area 13 which are communicated with the first diffusion area 11 and the second diffusion area 13 which are introduced into the extending-in tank pipeline 7 which is connected with the steam outlet pipe, during the leading-out flowing process, the flash steam is firstly compressed through a first steam through hole 9 on the defoaming cone 8, is diffused into a first diffusion area 11 formed by a diversion defoaming cylinder 10 and the inner wall of the tank and the defoaming cone 8, is compressed through a second steam through hole 12 on the diversion defoaming cylinder 10, is diffused into a second diffusion area 13 formed by a pipe 7 extending into the tank and the diversion defoaming cylinder 10 which are connected with a steam outlet pipe 6, is compressed through a third steam through hole 14 on the pipe 7 extending into the tank and connected with the steam outlet pipe 6, is led by an external low-pressure pipe and an ejector after entering the pipe 7 extending into the tank and connected with the steam outlet pipe 6, is separated from entrained moisture due to the actions of multiple compression extrusion, diffusion and the like during the leading-out flowing process, and is converged on the surfaces of the pipe 7 extending into the tank, the diversion defoaming cylinder 10 and the defoaming cone 8 of the steam outlet pipe 6, and the inner conical surface of the defoaming conical body 8 and a first water drainage gap 16 and a second water drainage gap 17 which extend into the space between the end surfaces of the pipeline 7 and the diversion defoaming cylinder 10 in the tank, converge on the plane defoaming plate 3 through a water drainage hole 15 at the center of the conical top of the defoaming conical body 8, and finally converge into the liquid accumulation area 5 at the lower part in the tank through the hole 4. It should be noted that, this flash tank for improving flash steam dryness should comply with the design standard specification of pressure vessel, the above-mentioned liquid inlet pipe 2, steam outlet pipe 6, and planar defoaming plate 3, as well as liquid outlet pipe 19, blow off pipe 22, safety valve connecting pipe 18, pressure gauge connecting pipe 23 and other components which are not illustrated are all configured according to the requirements of conventional vertical flash tank, the planar defoaming plate 3 may be a metal orifice plate or a wire mesh, the area of the opening of the orifice 4 is not less than 30% of the total area, circular orifice, elliptical orifice or other orifices may be selected, the mesh number of the wire mesh should be greater than 5 when the wire mesh is adopted, and circular orifice, square orifice or other orifices may be selected. The above is the working principle of the flash tank for improving the dryness of flash steam, and the content which is not described in detail in the specification belongs to the prior art which is well known to those skilled in the art.

The utility model discloses material, the standard part that use all can be purchased from market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each spare part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and material, standard part all adopt conventional model among the prior art, no detailed description here again.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an improve flash tank of flash distillation steam dryness fraction, including a jar body (1), feed liquor pipe (2), plane defoaming board (3), hole (4), hydrops district (5), play steam pipe (6), stretch into in-jar pipeline (7), defoaming conical body (8), first through-steam hole (9), water conservancy diversion defoaming section of thick bamboo (10), first diffusion zone (11), second through-steam hole (12), second diffusion zone (13), third through-steam hole (14), sluicing hole (15), first sluicing space (16), second sluicing space (17), take over (18) safety valve, drain pipe (19), go up liquid level transducer and take over (20), lower liquid level transducer takes over (21), blow off pipe (22) and manometer take over (23), its characterized in that: the upper portion of the tank body (1) is provided with a liquid inlet pipe (2), a plane foam removing plate (3) is arranged below the liquid inlet pipe (2) in the tank, holes (4) are formed in the plane foam removing plate (3), a liquid accumulation area (5) is arranged below the plane foam removing plate (3), a steam outlet pipe (6) is arranged at the top of the tank body (1), a pipeline (7) extending into the tank is arranged at the lower portion of the steam outlet pipe (6), a flow guide foam removing cylinder (10) is arranged on the outer side of the pipeline (7) extending into the tank, an inverted foam removing conical body (8) is placed at the lower end of the pipeline (7) and the flow guide foam removing cylinder (10) extending into the tank, a second diffusion area (13) and a first diffusion area (11) are respectively arranged between the pipeline (7) and the flow guide foam removing cylinder (10) and between the foam removing conical body (8) and the flow guide foam removing cylinder (10), a first steam through hole (9) is formed in the conical surface of the defoaming conical body (8) corresponding to the first diffusion area (11), a third steam through hole (14) and a second steam through hole (12) are formed in the conical surface of the defoaming conical body (8) extending into the tank body (7) and the flow guide defoaming cylinder (10) respectively, a water drainage hole (15) is formed in the center of the conical top of the defoaming conical body (8), a safety valve connecting pipe (18) is arranged at the peripheral position of the steam outlet pipe (6) at the top of the tank body (1), an upper liquid level transmitter connecting pipe (20) is arranged at the upper part of the tank body (1), a lower liquid level transmitter connecting pipe (21) is arranged at the lower part of the tank body (1) and under the upper liquid level transmitter connecting pipe (20), a liquid outlet pipe (19) is arranged at the lower part of the tank body (1) and is arranged in a staggered mode with the lower liquid level transmitter (21), a drain pipe (22) is arranged at the bottom end of the tank body (1), and a pressure gauge connecting pipe (, the safety valve connecting pipe (18) arranged at the periphery of the steam outlet pipe (6) is arranged in a staggered mode, and the first steam through hole (9), the second steam through hole (12) and the third steam through hole (14) can be in the shape of round holes, vertical long holes, oblique long holes and the like.

2. The flash tank for improving flash steam dryness as recited in claim 1, wherein: the steam outlet pipe (6) is concentric with the pipeline (7) extending into the tank, the length of the pipeline (7) extending into the tank is 2-3 times of the outer diameter of the pipeline, and the total area of the third steam through holes (14) distributed on the surface of the pipeline (7) extending into the tank is 0.8-1.2 times of the cross-sectional area of the pipe.

3. The flash tank for improving flash steam dryness as recited in claim 1, wherein: the diversion defoaming cylinder (10) is concentric with the pipeline (7) extending into the tank, the outer diameter of the diversion defoaming cylinder (10) is 1/3-1/2 of the inner diameter of the tank body (1), and the total area of the second steam through holes (12) distributed on the wall of the diversion defoaming cylinder (10) is 0.6-1.0 time of the cross-sectional area of the cylinder.

4. The flash tank for improving flash steam dryness as recited in claim 1, wherein: the lower ends of the pipeline (7) extending into the tank and the diversion defoaming cylinder (10) are provided with concentric defoaming cones (8), the central cone angle of the defoaming cone (8) is 100-160 degrees, and meanwhile, the cone top center of the defoaming cone (8) is provided with a drainage hole (15) with the diameter of 10-20 mm.

5. The flash tank for improving flash steam dryness as recited in claim 1, wherein: the total area of the first steam through holes (9) on the conical surface of the defoaming conical body (8) corresponding to the first diffusion area (11) is 0.3-0.5 times of the area of the conical surface.

6. The flash tank for improving flash steam dryness as recited in claim 1, wherein: remove foam conical surface (8) and stretch into in-tank pipeline (7) and water conservancy diversion and remove and be provided with first sluicing space (16) and second sluicing space (17) respectively between the terminal surface under foam cylinder (10), and the height in first sluicing space (16) and second sluicing space (17) is 3 ~ 8 mm.