Vacuum membrane distillation separation equipment for stably collecting condensate

Abstract

The invention relates to the field of distillation devices, in particular to vacuum membrane distillation separation equipment capable of stably collecting condensate, which comprises a condensate tank, a vacuum membrane tank arranged on the inner layer of the condensate tank, a vacuum pump mounted on the top of the condensate tank and communicated with the interior of the vacuum membrane tank, a gear ring connected to the bottom of the inner side of the condensate tank, and a gear engaged with the inner side of the gear ring, a universal joint is connected to the top of the gear, a screening piece is connected to the top of the universal joint, a leakage hole is formed in the center of the screening plate, sewage is stirred through the screening piece of a bowl-shaped structure and a water bearing plate on the edge, the sewage is stirred and is scooped up upwards through the water bearing plate, large particles are left after water flow passes through a sawtooth groove, and the sewage is discharged back into a sewage pool. The backflow effect is formed, the temperature needed by evaporation is reduced, more steam is evaporated, large particles are screened out, evaporation of sewage is facilitated, sedimentation of the particles is reduced, and the temperature gradient, formed by uneven particle distribution, in the sewage is further reduced.

Description

Technical Field

[0001] The present invention relates to the field of distillation devices, and particularly to a vacuum membrane distillation separation device for stably collecting condensate. Background Art

[0002] Vacuum membrane distillation technology utilizes the distillation of water sources. After distillation, the water is in a gaseous state, while the vacuum membrane is a hydrophobic material with fine pores distributed on its surface, allowing water vapor to pass through. After passing through, it naturally liquefies and falls when encountering a cold medium. Due to the hydrophobic nature of the vacuum membrane, the liquid will not flow back, and at this time, the obtained water resource is purer than the sewage, with almost no impurities; Although vacuum membrane distillation technology has many advantages, the method of obtaining pure water resources is more time-consuming, with a long time span, and during the evaporation process, it is necessary to maintain the sewage at a specific temperature for a long time, resulting in large energy losses. Therefore, the vacuum membrane distillation separation technology has always had problems of low efficiency and large energy losses; At the same time, there are impurities in the sewage, and the sedimentation of impurities will also cause uneven temperature distribution in the sewage, with high heat at the bottom and low temperature on the water surface, thus further affecting the evaporation efficiency.

[0003] Therefore, technicians in this field have designed a vacuum membrane distillation separation device for stably collecting condensate to solve the above problems. Summary of the Invention

[0004] Aiming at the above-mentioned existing technical deficiencies, the purpose of the present invention is to provide a vacuum membrane distillation separation device for stably collecting condensate, which can be adapted to the welding of mesh sheets with different spacings.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: It includes a condensate tank, with a vacuum membrane tank arranged inside the condensate tank. A vacuum pump is installed on the top of the condensate tank and is connected to the inside of the vacuum membrane tank. The bottom of the inner side of the condensate tank is connected with a gear ring, and a gear is meshed and connected inside the gear ring. The top of the gear is connected with a universal joint, and the top of the universal joint is connected with a sieve member. A leakage hole is opened in the center of the sieve plate.

[0006] Preferably, the lower end of the vacuum tank is a cylindrical structure, and the upper end is a frustum structure. The frustum structure of the vacuum tank is the vacuum membrane, and the cylindrical structure of the vacuum tank is made of high-temperature resistant material. Electric heating wires are arranged on both sides of the gear ring at the bottom of the vacuum tank. The top of the vacuum tank is connected with a water inlet pipe, and the water surface inside the vacuum tank is always lower than the vacuum membrane of the vacuum tank.

[0007] Preferably, the sieve member is in a frustum-shaped bowl structure, and serrated grooves are opened inside the sieve member. A water receiving plate is connected to the top edge of the sieve member, and the edge of the sieve member is always higher than the water surface inside the vacuum tank.

[0008] Preferably, the serrated groove includes serrations and leakage holes. The serrations are arranged in an annular and equidistant manner on the inner side of the sieve member. The leakage holes are opened at the inclined surface of the serrations and penetrate through the inclined surface of the serrations and both the inner and outer sides of the sieve member respectively.

[0009] Preferably, the bottom of the vacuum chamber is rotatably connected to a connecting plate through an opening. The upper surface of the connecting plate is rotatably connected to a gear. The bottom of the connecting plate is connected to a driving motor located below the vacuum chamber. The edge of the connecting plate is connected to a sealing rubber ring that is slidably connected to the opening at the bottom of the vacuum chamber.

[0010] Preferably, a heat dissipation plate is provided on the outer side of the condensate tank. The bottom surface of the inner wall of the condensate tank is lower than the bottom surface of the inner wall of the vacuum chamber. The bottom of the condensate tank is connected to a water outlet.

[0011] Preferably, the bottom of the vacuum chamber is slidably connected to a sealing plate. The inner side of the sealing plate includes a toothed ring and a gear. The surface of the sealing plate is sleeved on the outer wall of the universal joint through an opening. [[ID=X]] [[ID=X]]

[0012] The beneficial effects of the present invention: By using the sieve member in the shape of a bowl and the water receiving plate at the edge to stir the sewage, not only the sewage is stirred, but also the sewage is "scooped" upward through the water receiving plate. After the water flow passes through the serrated groove, large particles are left behind, and the sewage is discharged back into the sewage tank, forming a reflux effect that reduces the temperature required for evaporation, making more water vapor evaporate. And although the evaporation amount is smaller in a short time in this way, the heat energy loss caused by directly adding cold liquid is smaller. On the premise of improving the evaporation effect, energy conservation and emission reduction can be achieved; At the same time, the screening of large particles is also beneficial to the evaporation of sewage, reducing the sedimentation of particles and further reducing the temperature gradient in the sewage formed by uneven particle distribution; At the same time, an eccentric structure design is also adopted, so that the sieve member and the water receiving plate can rotate in a circumferential manner in an eccentric form, expanding the range of stirring the sewage liquid. And the sieve member in the shape of a bowl can easily float on the water surface and can be adjusted automatically according to the height of the water surface, avoiding the problem of empty stirring caused by the decrease of the water surface due to excessive evaporation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 is the front view structural schematic diagram of the present invention.

[0015] Figure 2 is the side sectional view structural schematic diagram of the present invention.

[0016] Figure 3 It is a schematic diagram of the back side in side sectional view of the present invention.

[0017] Figure 4 is of the present invention Figure 3 Partial enlarged schematic diagram at position A in

[0018] Figure 5 is a schematic diagram of the sieve structure of the present invention.

[0019] In the figure: 1. Condensate tank; 2. Vacuum tank; 3. Heat dissipation plate; 4. Vacuum pump; 5. Tooth ring; 6. Gear; 7. Universal joint; 8. Connecting plate; 9. Sieve; 10. Water receiving plate; 11. Leakage hole; 12. Sawtooth groove; 13. Leak hole; 14. Sealing plate. Detailed implementation manners

[0020] The technical solution of the present invention will be further described below in conjunction with the drawings and through specific implementation manners.

[0021] Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical diagrams, and should not be construed as a limitation on this patent; in order to better illustrate the embodiments of the present invention, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0022] In the drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] In the description of the present invention, unless otherwise clearly defined and limited, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment 1: The present invention provides a vacuum membrane distillation separation device for stable collection of condensate, as Figures 1-5 shown, which includes a condensate tank 1. Inside the condensate tank 1, there is a vacuum membrane box 2. At the top of the condensate tank 1, a vacuum pump 4 connected to the inside of the vacuum membrane box 2 is installed. At the inner bottom of the condensate tank 1, a gear ring 5 is connected. Inside the gear ring 5, a gear 6 is meshed. The combination of the gear ring 5 and the gear 6 forms a planetary gear structure, which can not only drive the sieve member 9 to rotate around in the vacuum box 2 but also rotate synchronously by itself. At the top of the gear 6, a universal joint 7 is connected. At the top of the universal joint 7, a sieve member 9 is connected. A leakage hole 13 is opened at the center of the sieve plate 9. The sieve member 9 can play a role in filtering sediment and removing water.

[0025] The lower end of the vacuum box 2 is a cylindrical structure, and the upper end is a frustum structure. The frustum structure of the vacuum box 2 is a vacuum membrane. The vacuum membrane itself is a hydrophobic material, and its surface is distributed with fine pores. Only when hot water evaporates into water vapor can it pass through the vacuum membrane and liquefy into water droplets on the other side of the vacuum membrane. The cylindrical structure of the vacuum box 2 is made of high-temperature resistant material. At the bottom of the vacuum box 2, electric heating wires are arranged on both the left and right sides of the gear ring 5. The electric heating wires can heat the sewage in the vacuum box 2 to make it evaporate. At the top of the vacuum box 2, a water inlet pipe is connected, and the water surface in the vacuum box 2 is always lower than the vacuum membrane of the vacuum box 2. The water surface being lower than the vacuum membrane can prevent impurities in the sewage from blocking the holes on the vacuum membrane.

[0026] The sieve member 9 is in the shape of a frustum-shaped bowl. Inside the sieve member 9, a serrated groove 12 is opened. At the top edge of the sieve member 9, a water receiving plate 10 is connected. When the water receiving plate 10 rotates with the sieve member 9, it can form both a fan blade structure and a stirring structure. The water receiving plate 10 exposed above the water surface is in the fan blade structure, which pushes the water vapor obliquely upward. The part under the water is in the stirring structure. By stirring, the impurity particles in the hot water are evenly distributed, making the overall solution easier to evaporate. The edge of the sieve member 9 is always higher than the water surface inside the vacuum box 2. The bowl-shaped structure of the sieve member 9 can be naturally adjusted according to the height of the water surface, always keeping a part of the water receiving plate 10 under the water surface and another part of the water receiving plate 10 above the water surface. To increase buoyancy, a hollow airbag structure can be set at the outer wall edge of the sieve member 9.

[0027] The serrated groove 12 includes serrations and leakage holes 11. The serrations are arranged in an annular and equidistant manner inside the sieve member 9. The leakage holes 11 are opened at the inclined surface of the serrations, and the leakage holes 11 penetrate through the inclined surface of the serrations and both the inner and outer sides of the sieve member 9. Impurities can enter the gaps between the serrations, and the leakage holes 11 located on the serration surface can prevent impurities from passing through the leakage holes 11.

[0028] The bottom of the vacuum chamber 2 is rotatably connected to a connecting plate 8 through an opening. The upper surface of the connecting plate 8 is rotatably connected to the gear 6. The bottom of the connecting plate 8 is connected to a drive motor located below the vacuum chamber 2. The edge of the connecting plate 8 is connected to a sealing rubber ring that is slidably connected to the opening at the bottom of the vacuum chamber 2. The drive motor can drive the connecting plate 8 and the gear 6 to rotate. The gear 6 meshes with the toothed ring 5 to realize the self-rotation of the gear 6 and the circumferential movement of the gear 6. The connecting plate 8 plays a sealing role.

[0029] A heat dissipation plate 3 is arranged outside the condensate tank 1. The bottom surface of the inner wall of the condensate tank 1 is lower than the bottom surface of the inner wall of the vacuum chamber 2. The bottom of the condensate tank 1 is lower than the vacuum chamber 2 to prevent the condensed water and the hot sewage from exchanging heat with each other, forming a natural gas insulation barrier, effectively preventing the sewage from reaching room temperature and always maintaining a heating state. The bottom of the condensate tank 1 is connected to a water outlet.

[0030] The bottom of the vacuum chamber 2 is slidably connected to a sealing plate 14. The inner side of the sealing plate 14 contains the toothed ring 5 and the gear 6. The surface of the sealing plate 14 is sleeved on the outer wall of the universal joint 7 through an opening. While playing a heat insulation and protection role for the toothed ring 5 and the gear 6, the sealing plate 14 also plays a sealing role, not only preventing impurities from getting stuck in the meshing assembly, but also preventing sewage from leaking outwards.

[0031] During use, sewage or water to be filtered is input into the vacuum chamber 2 through the pipeline at the top. The vacuum in the vacuum chamber 2 is pumped by the vacuum pump 4, making the pressure in the vacuum chamber 2 lower than the normal atmospheric pressure. The drive motor at the bottom is started to drive the connecting plate 8 and the gear 6 to rotate, and the heating device is synchronously started to heat the sewage. The gear 6 meshes with the inner wall of the toothed ring 5, driving the universal joint 7 to revolve and rotate simultaneously, so as to drive the sieve plate 9 to rotate and revolve on the water surface in an inclined posture with the edge higher than the water surface; When rotating, the water receiving plate 10 rotates into the water, stirring the water body and collecting water while entering. Large particle impurities can be obtained when it leaves the water surface. When the water receiving plate 10 cuts obliquely upwards, the impurities in the water will slide onto the serrated grooves 12 inside the sieve member 9 and get stuck between the serrations. The excess water will flow outwards along the leakage holes 11; From entering the water receiving plate 10 to the serrated grooves 12 and finally leaking out from the leakage holes 11, the liquid has completed a cooling process and re-entered the water during the whole process, forming a reflux effect, reducing the temperature required for evaporation, and further generating more water vapor. At the same time, the rotation of the water receiving plate 10 and the sieve member 9 also forms a fan blade structure. Although the blowing direction is perpendicular to the top vacuum membrane surface, it promotes the water vapor to pass through the membrane holes at a faster speed and finally slide to the inside of the condensate tank 1 from the other side of the vacuum membrane.

[0032] It should be noted that the above specific embodiments are only the preferred embodiments of the present invention and the technical principles applied. Those skilled in the art should understand that various modifications, equivalent replacements, changes, etc. can be made to the present invention. However, as long as these transformations do not deviate from the spirit of the present invention, they should be within the protection scope of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A vacuum membrane distillation separation device for stable collection of condensate, characterized in that, It includes a condensate tank (1). A vacuum membrane box (2) is arranged inside the condensate tank (1). A vacuum pump (4) connected to the inside of the vacuum membrane box (2) is installed at the top of the condensate tank (1). A toothed ring (5) is connected to the inner bottom of the condensate tank (1). A gear (6) is meshed and connected to the inside of the toothed ring (5). A universal joint (7) is connected to the top of the gear (6). A sieve member (9) is connected to the top of the universal joint (7). A leakage hole (13) is provided at the center of the sieve plate (9).

2. The vacuum membrane distillation separation device for stable collection of condensate according to claim 1, wherein The lower end of the vacuum box (2) is of a cylindrical structure, and the upper end is of a frustum structure. The frustum structure of the vacuum box (2) is a vacuum membrane, and the cylindrical structure of the vacuum box (2) is made of high-temperature resistant material. Electric heating wires distributed on the left and right sides of the toothed ring (5) are arranged at the bottom of the vacuum box (2). A water inlet pipe is connected to the top of the vacuum box (2), and the water surface inside the vacuum box (2) is always lower than the vacuum membrane of the vacuum box (2).

3. The vacuum membrane distillation separation device for stable collection of condensate according to claim 1, characterized in that The sieve member (9) is of a frustum-shaped bowl structure, and a sawtooth groove (12) is provided inside the sieve member (9). A water receiving plate (10) is connected to the top edge of the sieve member (9), and the edge of the sieve member (9) is always higher than the water surface inside the vacuum box (2).

4. The vacuum membrane distillation separation device for stable collection of condensate according to claim 3, characterized in that, The sawtooth groove (12) includes sawteeth and leakage holes (11). The sawteeth are arranged annularly and equidistantly on the inside of the sieve member (9). The leakage holes (11) are provided at the inclined surface of the sawteeth, and the leakage holes (11) penetrate through the inclined surface of the sawteeth and the inner and outer sides of the sieve member (9) respectively.

5. The vacuum membrane distillation separation device for stable condensate collection according to claim 1, characterized in that, The bottom of the vacuum box (2) is rotationally connected with a connecting plate (8) through an opening. The upper surface of the connecting plate (8) is rotationally connected with the gear (6). A driving motor located below the vacuum box (2) is connected to the bottom of the connecting plate (8). A sealing rubber ring slidingly connected to the opening at the bottom of the vacuum box (2) is connected to the edge of the connecting plate (8).

6. The vacuum membrane distillation separation device for stable collection of condensate according to claim 1, characterized in that, A heat dissipation plate (3) is arranged outside the condensate tank (1). The height of the inner bottom surface of the condensate tank (1) is lower than that of the inner bottom surface of the vacuum box (2). A water outlet is connected to the bottom of the condensate tank (1).

7. The vacuum membrane distillation separation equipment for stable collection of condensate according to claim 1, wherein A sealing plate (14) is slidably connected to the bottom of the vacuum box (2). The toothed ring (5) and the gear (6) are included inside the sealing plate (14). The surface of the sealing plate (14) is sleeved on the outer wall of the universal joint (7) through an opening.

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