Separation chamber for demister and MVR (mechanical vapor recompression) evaporator

Abstract

The utility model relates to a demister which comprises an inner cylinder and an outer cylinder, the retainer plate is fixedly connected with the inner cylinder and the outer cylinder respectively; the pressure plate and the filler cavity are filled with defoaming filler; and the locking mechanism enables the pressure plate pair to lock the defoaming filler in the filler cavity. The separation chamber for the MVR evaporator comprises a separation chamber body, a supporting plate is arranged in the defoaming cavity; the demister adopts the demister, and the demister is placed on the supporting plate; the cover plate covers the top of the separation chamber body so as to seal the defoaming cavity; according to the demister, the material pressing plate can be conveniently detached, the filler on the vertical face can be conveniently detached and cleaned, the demister can be repeatedly used, and airflow in the demister moves in the radial direction, so that the demister is small in size.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection equipment, in particular to a defoamer and a separation chamber for an MVR evaporator. Background Art

[0002] MVR is the abbreviation of mechanical vapor recompression. MVR is an energy-saving technology that reuses the energy of the secondary vapor it produces, thereby reducing the demand for external energy. The application scope of MVR is becoming wider and wider, and it is suitable for various industries. As the country pays more and more attention to environmental protection, and the domestic environmental protection situation is becoming more and more severe. Many sewage that cannot be treated by traditional methods are treated by MVR evaporation. However, due to the wide range of sewage treatment industries, the treated water often has high COD water quality, and a large amount of foam is generated during the evaporation process, which affects the quality of distilled water.

[0003] In the separation chamber of domestic MVR evaporators, wire mesh demisters are often used to remove foam, and the steam flow direction is basically bottom-in and top-out. The wire mesh demister is generally arranged in the separation chamber close to the separation chamber wall, which makes the wire mesh demister large in size, difficult to remove, and difficult to clean for secondary use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, provide a demister and a separation chamber for an MVR evaporator, and solve the technical problems that the demister used in the previous separation chamber is large in size, difficult to dismantle, and difficult to clean for secondary use.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] First aspect:

[0007] A demister is provided, comprising:

[0008] An inner cylinder and an outer cylinder, wherein a plurality of punching holes are formed on the inner cylinder and the outer cylinder, and an annular cavity is formed between the inner cylinder and the outer cylinder;

[0009] A supporting plate is located in the annular cavity and is fixedly connected to the inner cylinder and the outer cylinder respectively;

[0010] The pressing plate is located in the annular cavity and forms a filling cavity with the supporting plate, the inner cylinder and the outer cylinder, wherein the filling cavity is filled with a defoaming filler;

[0011] A locking mechanism, which is connected to the pressing plate and the supporting plate respectively, so that the pressing plate locks the defoaming filler in the filler cavity;

[0012] A radial airflow passage is formed between the inner cylinder, the filler cavity and the outer cylinder.

[0013] Furthermore, the locking mechanism includes

[0014] A plurality of locking screws, the lower ends of which pass through the supporting plate and are connected to the lower locking nuts, and the upper ends of which pass through the supporting plate and are connected to the upper locking nuts, and the upper locking nuts and the lower locking nuts are tightened to lock the pressing plate.

[0015] Furthermore, at least one handle bar is arranged in the inner tube.

[0016] Furthermore, the defoaming filler is a ball ring.

[0017] Second aspect:

[0018] Provided is a separation chamber for an MVR evaporator, comprising:

[0019] A separation chamber body, wherein a sewage chamber is provided in the separation chamber body and a defoaming chamber is provided on the top;

[0020] A support plate is arranged in the defoaming chamber, and the support plate is an annular structure, the outer ring of which is sealedly connected to the defoaming chamber, and the inner ring hole of which serves as an air inlet;

[0021] A demister, which uses the above-mentioned demister, and the demister is placed on a support plate;

[0022] A cover plate, which covers the top of the separation chamber body to close the defoaming chamber;

[0023] The side wall of the defoaming chamber is connected to a first branch, and the first branch is connected to a steam compressor.

[0024] Furthermore, the upper end of the support plate and the lower end of the cover plate are both provided with limiting rings for limiting the horizontal position of the demister.

[0025] The beneficial effects of the utility model are:

[0026] The utility model demister is convenient for dismantling the material pressing plate, and convenient for dismantling and cleaning the fillers on the opposite side, which can be reused, and the airflow in the demister moves radially, so that the volume of the demister is small.

[0027] In the separation chamber for the MVR evaporator of the utility model, the internal demister does not occupy a large separation chamber space, the demister is easy to disassemble and clean, and the operation efficiency of the separation chamber is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The utility model is further described below in conjunction with the accompanying drawings.

[0029] Figure 1 It is a three-dimensional diagram of the utility model demister;

[0030] Figure 2This is a half-section diagram of the utility model demister;

[0031] Figure 3 This is a schematic diagram of a separation chamber for an MVR evaporator of the utility model;

[0032] Among them, 1, inner cylinder, 11, handle bar;

[0033] 2. Outer cylinder, 3. Supporting plate, 4. Pressing plate;

[0034] 51. locking screw, 52. upper locking nut, 53. lower locking nut;

[0035] 6. Ball ring;

[0036] 7. separation chamber body, 71. support plate, 72. cover plate, 73. limiting ring;

[0037] 8. Steam compressor. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] The present application provides a defoamer, which is described in detail below. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0040] In order to solve the technical problems in the prior art that the demister used in the separation chamber is large in size, difficult to dismantle, and difficult to clean for secondary use, an embodiment of the present application provides a demister, which is described in detail below.

[0041] like Figure 1 Figure 2 As shown, a demister comprises

[0042] An inner cylinder 1 and an outer cylinder 2, wherein a plurality of punching holes are formed on the inner cylinder 1 and the outer cylinder 2, and an annular cavity is formed between the inner cylinder 1 and the outer cylinder 2;

[0043] The supporting plate 3 is located in the annular cavity and is fixedly connected to the inner cylinder 1 and the outer cylinder 2 respectively;

[0044] The pressing plate 4 is located in the annular cavity and forms a filling cavity with the supporting plate 3, the inner cylinder 1 and the outer cylinder 2, wherein the filling cavity is filled with a defoaming filler;

[0045] A locking mechanism, which is connected to the pressing plate 4 and the supporting plate 3 respectively, so that the pressing plate 4 locks the defoaming filler in the filler cavity;

[0046] A radial airflow passage is formed between the inner cylinder 1 , the filler cavity and the outer cylinder 2 .

[0047] In this embodiment, the inner ring of the supporting plate 3 is connected to the inner cylinder 1 by welding, and the outer ring is connected to the inner wall of the outer cylinder 2 by welding.

[0048] Specifically, as an optional implementation in this embodiment, Figure 1 Figure 2 As shown, the locking mechanism includes

[0049] A plurality of locking screws 51 have their lower ends passing through the supporting plate 3 and connected to the lower locking nuts 53 , and their upper ends passing through the supporting plate 3 and connected to the upper locking nuts 52 . The upper locking nuts 52 and the lower locking nuts 53 are tightened to lock the pressing plate 4 .

[0050] There are four locking screws 51 , which are evenly distributed circumferentially in the filling cavity.

[0051] Specifically, as an optional implementation in this embodiment, Figure 1 Figure 2 As shown, at least one handle bar 11 is provided in the inner tube 1 .

[0052] In this embodiment, there are two handle bars 11. The handle bars 11 facilitate lifting the demister.

[0053] In this embodiment, the defoaming filler is a ball ring 6. The ball ring 6 is an existing product and can be directly purchased.

[0054] Working principle of the demister: After the sewage foam enters the inner tube 1, it starts to move radially, passes through the annular packing layer for defoaming, and the gas is finally discharged from the punching holes of the outer tube 2.

[0055] In the demister, the pressing plate 4 can be opened by loosening the upper locking bolt at the upper end, and then the ball ring 6 therein can be poured out for cleaning, and after cleaning, it can be put back for continued use, thereby achieving reuse.

[0056] Another embodiment of the present application provides a separation chamber for an MVR evaporator, which is described in detail below.

[0057] like Figure 3 As shown, a separation chamber for an MVR evaporator includes

[0058] A separation chamber body 7, wherein the separation chamber body 7 is provided with a sewage cavity and a defoaming cavity on the top;

[0059] A support plate 71 is arranged in the defoaming chamber. The support plate 71 is an annular structure, the outer ring of which is sealedly connected to the defoaming chamber, and the inner ring hole of which serves as an air inlet.

[0060] A demister, which uses the above-mentioned demister, and the demister is placed on a support plate 71;

[0061] A cover plate 72, which covers the top of the separation chamber body 7 to close the defoaming chamber;

[0062] The side wall of the defoaming chamber is connected to a first branch, and the first branch is connected to a steam compressor 8 .

[0063] Specifically, as an optional implementation in this embodiment, Figure 3 As shown, a limiting ring 73 is provided at the upper end of the support plate 71 and the lower end of the cover plate 72, and the limiting ring 73 limits the horizontal position of the demister to prevent the demister from moving horizontally. The limiting ring 73 is fixed by welding.

[0064] The working process of the separation chamber of the MVR evaporator is as follows: the sewage enters the separation chamber, and the steam compressor 8 sucks the separation chamber to make it vacuum. The sewage begins to evaporate and produce foam under negative pressure. The foam and gas enter the defoaming chamber together. When the gas passes radially through the defoamer, the foam is removed and the gas enters the compressor through the first branch.

[0065] When the whole set of equipment needs to be shut down for maintenance, open the separation chamber cover 72 and the limit ring 73 of the demister welded to the separation chamber cover 72, take out the demister through the demister handle cross bar 11 for cleaning, first unscrew the upper locking nut 52 with a wrench during cleaning, take out the upper side pressure plate 4, pour out the ball ring 6 packing and clean it with clean water, and assemble it for use according to the previous sequence after cleaning.

[0066] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0067] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0069] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0070] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0071] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0072] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A demister, characterized in that: include An inner cylinder (1) and an outer cylinder (2), wherein a plurality of punched holes are formed on the inner cylinder (1) and the outer cylinder (2), and an annular cavity is formed between the inner cylinder (1) and the outer cylinder (2); A supporting plate (3) is located in the annular cavity and is fixedly connected to the inner cylinder (1) and the outer cylinder (2) respectively; A material pressing plate (4) is located in the annular cavity and forms a filling cavity with the material supporting plate (3), the inner cylinder (1) and the outer cylinder (2), wherein the filling cavity is filled with a defoaming filler; A locking mechanism, which is respectively connected to the material pressing plate (4) and the material supporting plate (3), so that the material pressing plate (4) can lock the defoaming filler in the filler cavity; A radial airflow passage is formed between the inner cylinder (1), the filler cavity and the outer cylinder (2).

2. The demister according to claim 1, characterized in that: The locking mechanism comprises A plurality of locking screws (51) have lower ends that pass through the support plate (3) and are connected to lower locking nuts (53), and upper ends that pass through the support plate (3) and are connected to upper locking nuts (52). The upper locking nuts (52) and the lower locking nuts (53) are tightened to lock the pressing plate (4).

3. The demister according to claim 1, characterized in that: At least one handle bar (11) is arranged in the inner cylinder (1).

4. The demister according to claim 1, characterized in that: The defoaming filler is a ball ring (6).

5. A separation chamber for an MVR evaporator, characterized in that: include A separation chamber body (7), wherein a sewage chamber is provided inside the separation chamber body (7) and a defoaming chamber is provided on the top; A support plate (71) is arranged in the defoaming chamber, and the support plate (71) is an annular structure, the outer ring of which is sealedly connected to the defoaming chamber, and the inner ring hole of which serves as an air inlet; A demister, which is the demister according to claim 1, and the demister is placed on a support plate (71); A cover plate (72) is covered on the top of the separation chamber body (7) to close the defoaming chamber; The side wall of the defoaming chamber is connected to a first branch, and the first branch is connected to a steam compressor.

6. The separation chamber for MVR evaporator according to claim 5, characterized in that: The upper end of the support plate (71) and the lower end of the cover plate (72) are both provided with a limiting ring (73) for limiting the horizontal position of the demister.

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