High-pressure microfiltration unit and system

Abstract

The utility model discloses a high-pressure microfiltration unit and system, and the microfiltration unit comprises two cover plates which are arranged in a mirror image manner and are fixed through a locking assembly; the water inlet and the water outlet are formed in the surface of the cover plate and are used for feeding and discharging liquid; narrow cavities are formed in the opposite faces of the two cover plates arranged in a mirroring mode, water collecting areas are arranged at the two ends of each narrow cavity, and the surface height of each water collecting area is larger than that of the surface of the corresponding narrow cavity so that a material blocking step can be formed; and the material particles are filled in the narrow cavities. The microfiltration system is formed by connecting a plurality of microfiltration units in parallel and in series. According to the utility model, the water body can be forced to penetrate through the micro micropores of the granules, so that the treatment effect of the target water body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pure water preparation, in particular to a high-pressure microfiltration unit. Background Art

[0002] In the preparation process of pure water, ultrapure water or some functionally modified water, it is often necessary to use water to make certain physical contact with the filter material to achieve the desired purpose. In the process of contact with some special materials, it is necessary to overcome other strong resistances so that water can flow through the countless micropores of the microscopic layer of the material particles. This is difficult to achieve for general tube-type or tank-type devices, because the gaps between the material particles are much smaller than the resistance of the material micropores, and water cannot pass through the micropores as expected. Increasing the pressure blindly will only increase the flow of water through the treatment device, but cannot make the water penetrate from the microscopic layer of the material particles, making it difficult to achieve the desired purpose. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and provide a high-pressure microfiltration unit.

[0004] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0005] A high-pressure microfiltration unit, comprising:

[0006] Two mirror-image cover plates are fixed to each other via a locking assembly;

[0007] A water inlet and a water outlet are provided on the surface of the cover plate for the entry and discharge of liquid;

[0008] The opposite surfaces of the two mirror-imaged cover plates are provided with narrow cavities, and water collection areas are provided at both ends of the narrow cavity, and the surface height of the water collection area is greater than the surface of the narrow cavity to form a material blocking step;

[0009] Granules are filled in the narrow cavity.

[0010] As a further description of the above technical solution, the water inlet and the water outlet are respectively arranged at the water collection areas at both ends of the narrow cavity.

[0011] As a further description of the above technical solution, the relationship between the material resistance step height H and the particle size D of the material particles is:

[0012] H=0.15~0.45D.

[0013] As a further description of the above technical solution, a sealing groove is provided on the outer ring of the narrow cavity and on the surface of the cover plate, and a sealing ring is filled in the sealing groove.

[0014] As a further description of the above technical solution, the locking assembly includes a plurality of positioning lock holes and locking holes opened at the edge of the cover plate, a positioning lock is installed in the positioning lock hole, and a bolt group is installed in the locking hole.

[0015] As a further description of the above technical solution, the width of the water collection area gradually increases from the water outlet / water inlet to the edge of the barrier step.

[0016] As a further description of the above technical solution, there is a height difference between the upper surface of the water collection area and the upper surface of the cover plate.

[0017] As a further description of the above technical solution, the water inlet and the water outlet are of quick-release chuck type or threaded type, and sealing gaskets are provided on the surfaces of the water inlet and the water outlet.

[0018] A high pressure microfiltration unit system, comprising any of the microfiltration units described above connected in parallel or in series with each other

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The utility model reduces the channel area through which water flows between the contact gaps on the surface of the pellets sharply, thereby forcing it to penetrate through the microscopic micropores of the pellets. Since the water injection section of the design unit of this scheme is the width direction of the module, and the length of the module is greater than its width, even if the particle size of some pellets is uneven, it can still penetrate and contact with other pellets along it, thereby ensuring the treatment effect of the target water body.

[0021] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a partial cross-sectional view of a microfiltration unit;

[0023] Figure 2 is a schematic diagram of a cover plate in a microfiltration unit;

[0024] Figure 3 is a stereogram of a microfiltration unit;

[0025] Figure 4 is a schematic diagram of a microfiltration system consisting of multiple microfiltration units;

[0026] Figure 5 It is a schematic diagram of a comparative example.

[0027] Figure numerals: 100, microfiltration unit; 110, cover plate one; 111, narrow cavity; 112, positioning lock hole; 113, locking hole; 114, material blocking step; 115, water collection area; 116, sealing groove; 120, cover plate two; 121, water inlet; 122, water outlet; 131, sealing gasket; 132, sealing ring; 133, granular material; 134, bolt group; 135, positioning lock; 136, blind plate one; 137, blind plate two. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0029] Embodiment 1:

[0030] like Figure 1-Figure 3 As shown, a high-pressure microfiltration unit includes two identical or mirror-image cover plate combinations, including cover plate 1 110 and cover plate 2 120. A plurality of positioning lock holes 112 and a plurality of locking holes 113 for positioning are arranged at the edges of cover plate 1 110 and cover plate 2 120. Cover plate 1 110 and cover plate 2 120 are tightly fixed by positioning locks 135 and bolt groups 134, respectively. Water inlet 121 and water outlet 122 are arranged on cover plate 1 110 and cover plate 2 120. A narrow cavity 111 is opened in the opposite surface of cover plate 1 110 and cover plate 2 120. Water collection areas 115 are arranged at both ends of the narrow cavity 111. The position of the water collection area 115 is higher than the bottom surface of the narrow cavity 111 to form a material blocking step 114, and the cavity bottom of the water collection area 115 is also lower than the surface of the cover plate for collecting feed water. The height of the material blocking step 114 is related to the particle size D of the granular material 133, and the height H of the material blocking step 114 should be between 0.15D and 0.45D. A sealing groove 116 is provided on the outer ring of the narrow cavity 111. When the cover plate 110 and the cover plate 2 120 are combined, a complete sealed cavity except for the water collection area 115 is formed inside them, and the sealing ring 132 is filled in the sealing groove 116 to complete the module sealing.

[0031] The narrow cavity 111 is filled with granules 133. Due to the limitation of the material barrier 114, the granules 133 can only be placed in the working area of ​​the narrow cavity 111. After the water flows in from the water inlet 121, it contacts the granules 133 after passing through the water collection area 115. Since the granules 133 are in the narrow cavity 111, they are spread along the cavity plane. The channel through which the water passes through the narrow cavity 111 is the narrow section filled with granules 133. This scheme will sharply reduce the channel area through which the water flows between the contact gaps on the particle surface, thereby forcing it to penetrate through the microscopic micropores of the granules 133. And because the water injection section of the design unit of this scheme is the width direction of the module, and the length of the module is greater than its width, even if the particle size of some granules 133 is uneven, it can still penetrate and contact with other granules 133 along it, thereby ensuring the treatment effect of the target water body.

[0032] Furthermore, the width of the water collection area 115 gradually increases from the water outlet 122 / water inlet 121 to the edge of the material blocking step 114, so that water can pass through the granular material 133 in the narrow cavity 111 to ensure the treatment effect of the target water.

[0033] Further, refer to Figure 3 When only one microfiltration unit 100 is used, the first blind plate 136 and the second blind plate 136 are used to respectively cover the spare water inlet 121 and the water outlet 122 .

[0034] Embodiment 2:

[0035] refer to Figure 4 A high-pressure microfiltration unit system, which is composed of multiple groups of the above-mentioned microfiltration units 100 connected in parallel / series, specifically: when adopting a parallel capacity expansion scheme to increase the flow rate of the required treated water, the water inlet 121 and the water outlet 122 of a single microfiltration unit 100 are connected in series, and the number of microfiltration units 100 corresponding to the flow rate is set. If the water pump capacity allows, the system processing capacity can be expanded by increasing the number of modules. After parallel connection, the remaining group of water inlets 121 and water outlets 122 can be blocked with blind plates in accordance with the single module scheme.

[0036] In summary, ignoring the slight influence of the local internal resistance of the system expansion (the pressure loss of the expansion component can be ignored relative to the internal pressure loss of a single module), within the allowable range of the pressure and flow of the water pump, the system capacity is linearly related to the number of module expansions. In order to further improve the space utilization of the module when multiple units are used in combination, the length and size specifications of the serially connected inlet and outlet ports 122 can be reduced until the modules are in a surface-fitting state. When this application is implemented, the fastening bolt group 134 needs to be replaced with a screw and nut combination that meets the length requirements, that is, the multiple units are converted into an integral unit for fixing and locking.

[0037] Comparative Example 1:

[0038] refer to Figure 5 , is a tank-type microfiltration structure, water enters through the water inlet 310, passes through the material 330 in the tank body 300, and then exits from the water outlet 320; this structure will only increase the water flow rate accordingly when the water inlet pressure is increased, and the water and the granular material are mainly in the form of surface contact, rather than internal penetration. Therefore, it cannot meet the application scenario of internal penetration between the water and the micropores of the granular material.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high pressure microfiltration unit, characterized in that: include: Two mirror-image cover plates are fixed to each other via a locking assembly; A water inlet and a water outlet are provided on the surface of the cover plate for the entry and discharge of liquid; The opposite surfaces of the two mirror-imaged cover plates are provided with narrow cavities, and water collection areas are provided at both ends of the narrow cavity, and the surface height of the water collection area is greater than the surface of the narrow cavity to form a material blocking step; Granules are filled in the narrow cavity.

2. The high pressure microfiltration unit according to claim 1, characterized in that: The water inlet and the water outlet are respectively arranged at the water collection areas at both ends of the narrow cavity.

3. The high pressure microfiltration unit according to claim 1, characterized in that: The relationship between the material resistance step height H and the particle size D is: H=0.15~0.45D.

4. The high pressure microfiltration unit according to claim 1, characterized in that: The outer ring of the narrow cavity is provided with a sealing groove on the surface of the cover plate, and the sealing groove is filled with a sealing ring.

5. The high pressure microfiltration unit according to claim 1, characterized in that: The locking assembly comprises a plurality of positioning lock holes and locking holes which are arranged at the edge of the cover plate, a positioning lock is installed in the positioning lock hole, and a bolt group is installed in the locking hole.

6. The high pressure microfiltration unit according to claim 1, characterized in that: The width of the water collection area gradually increases from the water outlet / water inlet to the edge of the barrier step.

7. The high pressure microfiltration unit according to claim 1, characterized in that: There is a height difference between the upper surface of the water collection area and the upper surface of the cover plate.

8. The high pressure microfiltration unit according to claim 1, characterized in that: The water inlet and the water outlet are of quick-install chuck type or threaded type, and sealing gaskets are arranged on the surfaces of the water inlet and the water outlet.

9. A high pressure microfiltration unit system, characterized in that: The microfiltration units described in any one of claims 1 to 8 are connected in parallel or in series with each other.

Images