CN217526708U

CN217526708U - Defogging device

Info

Publication number: CN217526708U
Application number: CN202221060280.1U
Authority: CN
Inventors: 李静; 尹成宝
Original assignee: Paques Environmental Technology Shanghai Co ltd
Current assignee: Paques Environmental Technology Shanghai Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-10-04
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a defogging device, defogging device includes the shell, inner shell and guide plate, the shell has the cavity, air inlet and leakage fluid dram, the upper end intercommunication of air inlet and cavity, the lower extreme intercommunication of leakage fluid dram and cavity, the inner shell has first chamber, the inner shell is established in the cavity, the inner peripheral surface of shell and the outer peripheral face of inner shell set up in order to form first passageway along inside and outside direction interval, the upper end opening of first passageway, the upper end of first passageway is suitable for letting in and treats the dehumidification gas, the guide plate is established in first passageway and is continuous with shell and inner shell respectively, the extending direction of guide plate intersects with the direction of height of inner shell and is the contained angle, the contained angle is greater than 0 and is less than 90, the guide plate is used for detaching the water smoke in treating the dehumidification gas in order to form behind the dehumidification gaseous, gaseous first chamber discharge defogging device through the inner shell after the baffle reflection in the defogging device behind the dehumidification. The utility model discloses a defogging device has advantages such as simple structure, effectual, the low cost of defogging.

Description

Defogging device

Technical Field

The utility model relates to a marsh gas processing technology field specifically relates to a defogging device.

Background

In the processes of biogas treatment, biogas utilization, waste gas treatment and other gas treatment, a demisting device is often needed to remove excessive moisture in the gas and prevent adverse effects on the subsequent treatment process.

In the related art, the demisting device has poor demisting effect, low water-gas separation efficiency and short service life.

SUMMERY OF THE UTILITY MODEL

The present invention is made based on the discovery and recognition by the inventors of the following facts and problems:

in the related art, the demister structure generally includes a wire mesh demister, a folded plate demister, a cap demister, etc., and the gas flow direction and the condensate flow direction are reverse flow or cross flow.

In the related art, the design of the demister in terms of structure and fluid flow direction results in the following disadvantages:

since the gas and condensed liquid are generally counter-current or cross-current, the separation efficiency is reduced when the gas flow rate is too high. Under the condition of high gas flow rate, because the flow direction of condensed water is opposite to or crossed with the direction of gas flow, water mist can not only enter gas again, but also the flow resistance of the gas can be increased due to the reverse flow or the cross flow of a large amount of condensed water, the pressure drop of the demister can be increased, and the pressure loss of the system can be increased. And the condensed water cannot flow away in time due to the gas flowing reversely, and scaling and system blockage can occur in serious cases.

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides a simple structure, effectual, the long service life's of defogging device.

The utility model discloses defogging device includes: the device comprises a shell, a liquid inlet and a liquid outlet, wherein the shell is provided with a cavity, the gas inlet is communicated with the upper end of the cavity, and the liquid outlet is communicated with the lower end of the cavity; the inner shell is provided with a first cavity and an air outlet, the inner shell is arranged in the cavity, the inner circumferential surface of the outer shell and the outer circumferential surface of the inner shell are arranged at intervals along the inner direction and the outer direction to form a first channel, the upper end of the first channel is opened to form the air inlet, the lower end of the first cavity is communicated with the cavity, the air outlet is formed at the upper end of the first cavity, and the upper end of the first channel is suitable for introducing gas to be dehumidified; the guide plate, the guide plate is established in the first passageway and respectively with the shell with the inner shell links to each other, the extending direction of guide plate with the direction of height of inner shell intersects and is the contained angle, the contained angle is greater than 0 and is less than 90, the guide plate is used for detaching treat that the internal water smoke of dehumidification is gaseous after in order to form the dehumidification.

The utility model discloses defogging device sets up shell, inner shell and guide plate for the gas separation after treating the gas of defogging and the defogging has improved the defogging effect, has combined swash plate and cyclone's principle, makes to treat that the defogging device can move under the condition of high gas flow rate, and the defogging device is small, and used material is few, has reduced manufacturing cost when guaranteeing the operation effect.

In some embodiments, the defogging device further includes a baffle plate, the baffle plate is disposed in the lower end of the chamber and below the inner shell, an outer circumferential surface of the baffle plate is spaced from an inner circumferential surface of the chamber, and the baffle plate is used for returning the dehumidified gas flowing out of the first channel into the first cavity.

In some embodiments, the inner shell is cylindrical and the distance between the baffle and the lower end of the inner shell is greater than the diameter of the inner shell.

In some embodiments, the chamber includes a first section and a second section communicating with each other in an up-down direction, the first section is provided above the second section, the liquid discharge port is formed at a bottom of the second section, a cross-sectional area of the second section is gradually reduced in a direction away from the first section, and the baffle is formed in the second section.

In some embodiments, the outer shell and the inner shell are both cylindrical, and the ratio of the diameter of the outer shell to the diameter of the inner shell is 20% to 50%.

In some embodiments, the baffle is a plurality of baffles, and the plurality of baffles are arranged at intervals along the circumferential direction of the inner shell.

In some embodiments, the baffle is a spiral plate, the helix angle of the spiral plate is 40-60 °, and the distance between two adjacent spiral plates is 100-500 mm.

In some embodiments, the inner shell is cylindrical and the upper and lower end surfaces of the spiral plate have a dimension at the height of the inner shell that is greater than 2 times the diameter of the inner shell.

In some embodiments, the defogging device further includes a shower pipe, the shower pipe is disposed on the outer peripheral surface of the inner shell and located above the first channel, one side of the shower pipe facing the first channel is provided with a plurality of shower openings, and the shower openings are spaced along the extending direction of the shower pipe so as to spray on the baffle plate.

In some embodiments, the upper end of the inner casing is higher than the upper end of the outer casing, and the shower pipe is located between the upper end of the inner casing and the upper end of the outer casing in the up-down direction.

In some embodiments, the spraying openings and the second channels are arranged in a one-to-one correspondence along the vertical direction.

Drawings

Fig. 1 is a front view of a defogging device according to an embodiment of the present invention.

Fig. 2 is a front cross-sectional view of a defogging device according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an inner shell of a defogging device according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a second section of the housing of the defogging device according to the embodiment of the present invention.

Fig. 5 is a schematic diagram of the defogging device according to the embodiment of the present invention.

Reference numerals:

a defogging device 100;

a housing 1; a chamber 11; an air inlet 12; a liquid discharge port 13; a first section 14; a second section 15;

an inner casing 2; a first cavity 21; a first channel 22; an air outlet 23;

a baffle 3; a second channel 31;

a baffle 4; a mounting plate 5; a shower pipe 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

A defogging device according to an embodiment of the present invention is described below with reference to the drawings.

As shown in fig. 1 to 5, a defogging device according to an embodiment of the present invention includes an outer case 1, an inner case 2, and a baffle 3.

The housing 1 has a chamber 11, an air inlet 12 and a liquid outlet 13, the air inlet 12 communicating with the upper end of the chamber 11, and the liquid outlet 13 communicating with the lower end of the chamber 11. Specifically, as shown in fig. 1-2, the top of the casing 1 has an air inlet 12, the bottom of the casing 1 has a liquid outlet 13, the gas to be dehumidified flows into the chamber 11 through the air inlet 12, and the water mist in the gas to be dehumidified is condensed and flows out of the liquid outlet 13.

The inner shell 2 is provided with a first cavity 21 and an air outlet 23, the inner shell 2 is arranged in the cavity 11, the inner circumferential surface of the outer shell 1 and the outer circumferential surface of the inner shell 2 are arranged at intervals along the inner and outer directions to form a first channel 22, the upper end of the first channel 22 is opened to form the air inlet 12, the lower end of the first cavity 21 is communicated with the cavity 11, the air outlet 23 is formed at the upper end of the first cavity 21, and the upper end of the first channel 22 is suitable for introducing gas to be dehumidified. Specifically, as shown in fig. 1-2, the inner casing 2 has a first cavity 21 penetrating through the inner casing 2 in the up-down direction, the inner casing 2 is disposed in the outer casing 1 and spaced from the outer casing 1 in the inside-outside direction to form a first channel 22, the gas inlet 12 is formed between the outer casing 1 and the inner casing 2 and located at the upper end of the outer casing 1, the gas outlet 23 is formed at the top of the first cavity 21, the lower end of the first channel 22 is communicated with the chamber 11, the gas to be dehumidified flows into the first channel 22, so that the gas to be dehumidified is dehumidified in the first channel 22, the gas after the dehumidification flows into the first cavity 21, flows upward through the first cavity 21 and flows out of the defogging device 100 from the gas outlet 23.

The guide plate 3 is arranged in the first channel 22 and is respectively connected with the outer shell 1 and the inner shell 2, the extending direction of the guide plate 3 is intersected with the height direction of the inner shell 2 to form an included angle, the included angle is larger than 0 degree and smaller than 90 degrees, and the guide plate 3 is used for removing water mist in gas to be dehumidified so as to form gas and condensate after dehumidification. Specifically, as shown in fig. 1 to 3, the baffle 3 is disposed between the outer shell 1 and the inner shell 2, the inner circumferential surface of the baffle 3 is connected to the outer circumferential surface of the inner shell 2, the outer circumferential surface of the baffle 3 is connected to the inner circumferential surface of the outer shell 1, and the extending direction of the baffle 3 intersects with the vertical direction to form an included angle, so that not only is the flowing time of the gas to be dehumidified in the first passage 22 prolonged, but also the water mist in the gas to be dehumidified is condensed after encountering the baffle 3 and flows downward together with the gas, thereby removing the water mist in the gas to be dehumidified.

According to the utility model discloses defogging device 100, set up shell 1 and inner shell 2, thereby will treat that the dehumidification gas carries out the defogging between shell 1 and inner shell 2, gas after the defogging flows out from the first chamber 21 of inner shell 2, thereby will treat that the dehumidification gas is effectual to be separated with the dehumidification gas, make the gas after the dehumidification gas and treat that the dehumidification gas does not influence each other, can not make water smoke get into the gas after the dehumidification gas once more, the treatment effect has been ensured, treat that the dehumidification gas and condensate syntropy flow have reduced the loss of pressure of system, set up guide plate 3 in addition, the flow time of treating the dehumidification gas in defogging device 100 has been improved, the collision area has been increased, defogging efficiency has been improved.

In some embodiments, the defogging device 100 further includes a baffle 4, the baffle 4 is disposed in the lower end of the chamber 11 and below the inner casing 2, the outer circumferential surface of the baffle 4 is spaced from the inner circumferential surface of the chamber 11, and the baffle 4 is used for returning the dehumidified gas flowing out of the first channel 22 to the first chamber 21. Specifically, as shown in fig. 4, the baffle 4 may be circular, substantially rectangular, triangular, etc., and the center of the baffle 4 is aligned with the center of the inner casing 2 in the up-down direction, and the baffle 4 and the lower end of the inner casing 2 are arranged at an interval in the up-down direction, so that the dehumidified gas flowing out of the first channel 22 meets the baffle 4 and then returns back to the first chamber 21, and the condensed water mist turns into condensed liquid and flows out through the liquid discharge port 13, thereby separating the gas from the water mist.

In some embodiments, the defogging device 100 further includes a mounting plate 5, the mounting plate 5 is disposed in the chamber 11, and two ends of the mounting plate 5 are respectively connected to the inner circumferential surface of the chamber 11 and the baffle 4. Specifically, as shown in fig. 1 and 4, the mounting plate 5 may be a plurality of mounting plates 5, the plurality of mounting plates 5 are arranged at intervals along the circumferential direction of the housing 1, the plurality of mounting plates 5 are arranged vertically, inner circumferential surfaces of the plurality of mounting plates 5 are connected to the baffle 4, outer circumferential surfaces of the plurality of mounting plates 5 are connected to an inner circumferential surface of the chamber 11, and thus the baffle 4 is fixed in the chamber 11 by the mounting plates 5.

Since too small a distance between the upper end surface of the baffle 4 and the lower end surface of the housing will cause the airflow reflected by the baffle 4 to be greater than the airflow velocity in the first channel 22, and the airflow will carry moisture out, in some embodiments, the inner housing 2 is cylindrical, and the distance between the baffle 4 and the lower end of the inner housing 2 is greater than the diameter of the inner housing 2. Specifically, the distance between the upper end surface of the baffle 4 and the lower end surface of the housing is greater than the diameter of the inner housing 2, so that the flow velocity of the gas in the first chamber 21 is stable, and the defogging effect of the defogging device 100 is ensured.

In some embodiments, chamber 11 includes a first section 14 and a second section 15 communicating with each other in the up-down direction, first section 14 is provided above second section 15, liquid discharge port 13 is formed at the bottom of second section 15, the cross-sectional area of second section 15 gradually decreases in a direction away from first section 14, and baffle 4 is formed in second section 15. Specifically, as shown in fig. 4, the cross-sectional area of first section 14 is constant from top to bottom, and first section 14 may be cylindrical, the cross-sectional area of second section 15 gradually decreases from top to bottom to form a conical shape, and the angle of the cone of second section 15 is 60 °, and liquid discharge port 13 is formed below second section 15, so as to facilitate the outflow of condensed liquid from liquid discharge port 13 of second section 15.

In some embodiments, the outer shell 1 and the inner shell 2 are both cylindrical, and the ratio of the diameter of the outer shell 1 to the diameter of the inner shell 2 is 20% to 50%. Specifically, the diameter of the inner casing 2 is larger than 150mm, the gas flow rate in the inner casing 2 is 3-7m/s, the ratio of the diameter of the outer casing 1 to the diameter of the inner casing 2 may be any one of 20%, 25%, 30%, 35%, 40%, 45%, and 50%, and when the ratio of the diameter of the outer casing 1 to the diameter of the inner casing 2 is smaller than 20%, the volume of the first passage 22 is too small, and the flow rate of the gas to be dehumidified in the first passage 22 is too fast, thereby affecting the defogging effect. When the ratio of the diameter of the outer shell 1 to the diameter of the inner shell 2 is greater than 50%, the diameter of the outer shell 1 is too large, which increases the manufacturing cost of the defogging device 100.

In some embodiments, the baffle 3 is plural, and the plural baffles 3 are arranged at intervals along the circumference of the inner casing 2. Specifically, as shown in fig. 3, a plurality of baffles 3 are arranged at intervals along the circumferential direction of the inner casing 2, a second channel 31 is formed between two adjacent baffles 3, both ends of the second channel 31 are communicated with the first channel 22, and the gas to be dehumidified flows into the second channel 31 from the first channel 22 and flows into the first channel 22 from the second channel 31.

In some embodiments, the baffle 3 is a spiral plate having a helix angle of 40 ° to 60 °. Specifically, as shown in fig. 3, the flow guide plate 3 is a spiral plate, the arrangement of the spiral plate can make the defogging device 100 not easily blocked, the spiral angle of the spiral plate can be any one of 40 °, 45 °, 50 °, 55 °, and 60 °, if the spiral angle is greater than 60 °, the contact between the water mist in the gas to be dehumidified and the flow guide plate 3 will be poor, if the spiral angle is less than 40 °, the contact area between the gas to be dehumidified and the flow guide plate 3 will be increased, the flow resistance of the gas to be dehumidified will also be increased, and the discharge resistance of the condensed liquid will also be increased.

The distance between two adjacent spiral plates is 100mm-500mm. Specifically, as shown in fig. 3, the distance between two adjacent spiral plates may be any one of 100mm, 200mm, 300mm, 400mm, and 500mm, and if the distance between two adjacent spiral plates is smaller than 100mm, although the contact area between the gas to be dehumidified and the flow guide plate 3 may be increased, the flow resistance of the gas to be dehumidified may be increased, and meanwhile, the discharge resistance of the condensed liquid may be correspondingly increased, and the manufacturing cost of the defogging device 100 may be increased, and if the distance between two adjacent spiral plates is larger than 500mm, the defogging effect of the defogging device 100 may be deteriorated.

In some embodiments, the inner shell 2 is cylindrical and the upper and lower end surfaces of the spiral plate have a dimension at the height above the inner shell 2 that is greater than 2 times the diameter of the inner shell 2. Specifically, the spiral height of the spiral plate is 2 times larger than the diameter of the inner shell 2, so that the circulation time of the gas to be dehumidified in the second channel 31 is prolonged, and the defogging effect of the defogging device 100 is improved.

In some embodiments, the defogging device 100 further includes a shower pipe 6, the shower pipe 6 is disposed on the outer peripheral surface of the inner housing 2 and above the first channel 22, and a side of the shower pipe 6 facing the first channel 22 is provided with a plurality of shower openings (not shown), and the shower openings are spaced along the extending direction of the shower pipe 6 so as to spray the baffle 3. Specifically, as shown in fig. 1, the spray pipe 6 is arranged at the upper end of the inner shell 2 and located between the outer shell 1 and the inner shell 2, the spray pipe 6 is provided with a plurality of spray openings with downward openings, and liquid in the spray pipe 6 sprays the second channel 31 and the guide plate 3 through the spray openings, so that the guide plate 3 is cleaned, and blockage between the guide plates 3 is prevented.

In some embodiments, the upper end of the inner casing 2 is higher than the upper end of the outer casing 1, and the shower pipe 6 is located between the upper end of the inner casing 2 and the upper end of the outer casing 1 in the up-down direction. The shower 6 is thus mounted on the housing 1, providing a mounting base for the shower.

In some embodiments, the spraying ports and the second passages 31 are arranged in one-to-one correspondence in the up-down direction. Specifically, the number of the spraying ports is the same as that of the second passages 31, and the spraying ports and the upper ends of the second passages 31 are arranged oppositely at intervals in the vertical direction, so that each second passage 31 can be sprayed, and the spraying efficiency of the spraying pipe 6 is improved.

As shown in fig. 5, the operation of the defogging device 100 according to the embodiment of the present invention is described as follows:

the gas to be dehumidified enters the first channel 22 from the upper part of the first channel 22, and the water mist in the gas to be dehumidified is condensed after meeting the deflector 3 and flows downwards along with the gas to be dehumidified. The dehumidified gas in the baffle 3 is reflected upward after encountering the baffle 4, flows into the first chamber 21, and is discharged out of the demister 100 through the gas outlet 23 at the top of the first chamber 21.

The condensate flows down along the deflector 3 to the bottom of the chamber 11, and is discharged out of the demisting device 100 through a liquid outlet 13 at the bottom of the chamber 11, and the spray pipe 6 is used for spray washing when the deflector 3 is blocked, and generally clear water is used.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.

Claims

1. A defogging device, comprising: the device comprises a shell, a liquid inlet and a liquid outlet, wherein the shell is provided with a cavity, the gas inlet is communicated with the upper end of the cavity, and the liquid outlet is communicated with the lower end of the cavity; the inner shell is provided with a first cavity and an air outlet, the inner shell is arranged in the cavity, the inner circumferential surface of the outer shell and the outer circumferential surface of the inner shell are arranged at intervals along the inner and outer directions to form a first channel, the upper end of the first channel is opened to form the air inlet, the lower end of the first cavity is communicated with the cavity, the air outlet is formed at the upper end of the first cavity, and the upper end of the first channel is suitable for introducing gas to be dehumidified; the guide plate, the guide plate is established in the first passageway and respectively with the shell with the inner shell links to each other, the extending direction of guide plate with the direction of height of inner shell intersects and is the contained angle, the contained angle is greater than 0 and is less than 90, the guide plate is used for detaching treat that the internal water smoke of dehumidification is gaseous after in order to form the dehumidification.

2. The defogging device as recited in claim 1, further comprising a baffle plate disposed within the lower end of said chamber and below said inner shell, wherein an outer peripheral surface of said baffle plate is spaced from an inner peripheral surface of said chamber, said baffle plate being configured to return dehumidified gas flowing from said first channel into said first chamber.

3. A defogging device as recited in claim 2 wherein said inner housing is cylindrical and the distance between said baffle and the lower end of said inner housing is greater than the diameter of said inner housing.

4. A defogging device as recited in claim 2 wherein said chamber includes a first section and a second section communicating with each other in an up-down direction, said first section being disposed above said second section, said drain opening being formed at a bottom portion of said second section, said second section having a cross-sectional area which decreases in a direction away from said first section, said baffle being formed within said second section.

5. A defogging device according to claim 1, wherein both said outer shell and said inner shell are cylindrical and the ratio of the diameter of said outer shell to the diameter of said inner shell is between 20% and 50%.

6. A defogging device according to claim 1 wherein said baffle is a plurality of baffles, said plurality of baffles being spaced circumferentially about said inner housing, and a second channel being defined between adjacent ones of said baffles.

7. The defogging device recited in claim 1 wherein said baffle is a spiral plate, said spiral plate has a pitch angle of 40 ° -60 °, and a spacing between two adjacent spiral plates is 100mm-500mm.

8. The demister of claim 7 wherein the inner shell is cylindrical and the upper and lower end surfaces of the spiral plate have a dimension at a height above the inner shell that is greater than 2 times a diameter of the inner shell.

9. A defogging device as recited in claim 6 further comprising a shower pipe disposed on the outer peripheral surface of said inner shell and above said first channel, wherein a plurality of spray openings are disposed on one side of said shower pipe facing said first channel, said spray openings being spaced along the extending direction of said shower pipe for spraying said baffle plate.

10. The defogging device recited in claim 9 wherein an upper end of said inner housing is higher than an upper end of said outer housing, said shower pipe being positioned between said upper end of said inner housing and said upper end of said outer housing in an up-down direction.

11. A defogging device as recited in claim 9 wherein said spray openings and said second channels are disposed in one-to-one correspondence in a vertical direction.