Wire mesh demister for falling film evaporator

Abstract

The utility model belongs to the technical field of wire mesh demisters, and particularly relates to a wire mesh demister for a falling film evaporator, which comprises a demister main body and an outer shell, a water inlet and a water outlet are respectively fixed at two ends of the outer shell, the axes of the water inlet and the water outlet coincide, and the water inlet and the water outlet coincide with each other. The water outlet is fixed on a water inlet or a water inlet pipeline of the falling film evaporator, and the demister main body is mounted in the outer shell in a drawing manner; the outer shell comprises a frame, a water inlet end cover and a water outlet end cover, the water inlet end cover is fixed to the water inlet end of the frame, the water outlet end cover is fixed to the water outlet end of the frame, and the water outlet is fixed to the water outlet end cover; the axes of the water inlet and the water outlet coincide, and the water outlet is fixed on the water inlet of the falling-film evaporator or a water inlet pipeline, so that inflowing water can be fully defoamed, and the defoaming efficiency is high; the demister main body is mounted in the outer shell in a drawing manner, so that the demister is easy to mount, use, dismount, clean and replace.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire mesh demisters, and in particular relates to a wire mesh demister for a falling film evaporator. Background Art

[0002] Falling film evaporation is a process in which the feed liquid is added from the upper tube box of the falling film evaporator heating chamber, and evenly distributed to each heat exchange tube through the liquid distribution and film forming device. Under the action of gravity, vacuum induction and airflow, it flows from top to bottom in a uniform film. The wire mesh demister is an important accessory of the falling film evaporator. The wire mesh demister is a gas-liquid separation device. The gas passes through the wire pad of the demister to remove the entrained mist.

[0003] In the prior art, a Chinese utility model patent with authorization announcement number CN213823480U discloses "a wire mesh demister for a falling film evaporator", comprising a mounting plate installed on the outer wall of the falling film evaporator at an opening, a flange device being provided on the mounting plate, a connecting pipe being installed at the inner end of the flange device, and a plug being provided at the end of the connecting pipe; a threaded opening is installed on the inner side of the connecting pipe, an internal thread is provided on the threaded opening, and a defoaming mechanism is threadedly connected to the internal thread of the threaded opening.

[0004] Although the wire mesh demister in the prior art is easy to disassemble and replace, the wire mesh demister is fixed at the lower end of the falling film evaporator. Firstly, the water inlet of most falling film evaporators is usually at the top or the top of the outer side. The easily detachable wire mesh demister in the prior art is far away from the water inlet after installation, and the defoaming effect is not ideal. Secondly, the inlet and outlet of the easily detachable wire mesh demister in the prior art are not in the same straight line, and the defoaming effect is poor.

[0005] In order to solve the above problems, the present application proposes a wire mesh demister for a falling film evaporator. Utility Model Content

[0006] In order to solve the above problems existing in the prior art, the utility model provides a wire mesh demister for a falling film evaporator, which has the characteristics of being easy to use, easy to assemble and disassemble and having a good defoaming effect.

[0007] To achieve the above object, the utility model provides the following technical solution: a wire mesh demister for a falling film evaporator, comprising a demister body, and also comprising:

[0008] An outer shell, with a water inlet and a water outlet respectively fixed at both ends of the outer shell, and the axes of the water inlet and the water outlet coincide with each other, the water outlet is fixed on the water inlet or water inlet pipe of the falling film evaporator, and the demister body is installed in the outer shell by pulling.

[0009] Preferably, the outer shell comprises:

[0010] A frame, in which the demister body is installed by pulling;

[0011] A water inlet end cover, wherein the water inlet end cover is fixed to the water inlet end of the frame, and the water inlet is fixed to the water inlet end cover;

[0012] A water outlet end cover is fixed to the water outlet end of the frame, and the water outlet is fixed on the water outlet end cover.

[0013] Preferably, it also includes:

[0014] A U-shaped insert frame is provided with a disassembly opening for the demister body to pass through, the U-shaped insert frame is fixed in the frame at a position corresponding to the disassembly opening, and a slot for accommodating the demister body is provided in the U-shaped insert frame.

[0015] Preferably, it also includes:

[0016] A sealed door panel, the sealed door panel being hinged on the frame at a position corresponding to the disassembly opening;

[0017] A fixing plate, the fixing plate being fixed to the free end of the sealing door plate;

[0018] A manual bolt is connected to the frame by threaded engagement after passing through the fixing plate.

[0019] Preferably, a rubber sealing ring is bonded and fixed on the sealing door panel.

[0020] Preferably, a handle No. 1 is fixed on the end surface of the demister body, and an avoidance hole for the handle No. 1 to pass through is provided on the sealing door panel.

[0021] Preferably, a second handle is fixed on the sealing door panel at a position close to the free end.

[0022] Preferably, it also includes:

[0023] A water inlet guide cover, the water inlet guide cover is fixed in the frame at a position close to the water inlet;

[0024] A water outlet guide cover is fixed in the frame at a position close to the water outlet.

[0025] Preferably, there are two demister bodies spaced apart from each other.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] In the utility model, the axes of the water inlet and the water outlet coincide, and the water outlet is fixed on the water inlet or the water inlet pipe of the falling film evaporator, which can fully remove foam from the incoming water and has high defoaming efficiency; the demister body is installed in the outer shell by a pulling method, which is easy to install, use, disassemble, clean and replace.

[0028] Other additional advantages and beneficial effects of the present application will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0030] Figure 1 It is a schematic diagram of the structure of the utility model;

[0031] Figure 2 This is a schematic diagram of the axonometric structure of the utility model;

[0032] Figure 3 It is a schematic diagram of the main structure of the demister in the utility model;

[0033] Figure 4 It is a schematic diagram of the frame cross-section structure in the utility model.

[0034] In the figure: 1. outer shell; 11. frame; 111. disassembly and assembly port; 12. water inlet end cover; 121. water inlet; 122. water inlet guide cover; 13. water outlet end cover; 131. water outlet; 132. water outlet guide cover; 2. demister body; 21. handle number one; 3. sealing door panel; 31. avoidance hole; 32. handle number two; 4. fixing plate; 5. manual bolt; 6. rubber sealing ring; 7. U-shaped frame; 71. slot. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0036] Example 1

[0037] See also Figure 1-Figure 4 , the utility model provides the following technical solutions: a wire mesh demister for a falling film evaporator, comprising a demister body 2, and also comprising: an outer shell 1;

[0038] Furthermore, a water inlet 121 and a water outlet 131 are respectively fixed at both ends of the outer shell 1, and the axes of the water inlet 121 and the water outlet 131 coincide with each other. The water outlet 131 is fixed on the water inlet or the water inlet pipe of the falling film evaporator, and the demister body 2 is installed in the outer shell 1 by pulling. Therefore, when in use, the water outlet 131 is fixed to the water inlet or the water inlet pipe of the falling film evaporator by conventional means, and the water flows into the water inlet 121 from the water inlet pipe, and then enters the outer shell 1, and is defoamed by the demister body 2 in the outer shell 1, and then enters the falling film evaporator, and the axes of the water inlet 121 and the water outlet 131 coincide with each other, so that the incoming water can be fully defoamed, and the defoaming efficiency is high; the demister body 2 is installed in the outer shell 1 by pulling, which is easy to install, use, disassemble, clean and replace.

[0039] It should be noted that the water outlet 131 is preferably fixed to the water inlet or water inlet pipe of the falling film evaporator by means of a flange.

[0040] Preferably, by Figure 1 As shown, the outer shell 1 includes: a frame 11, a water inlet end cover 12 and a water outlet end cover 13. The demister body 2 is installed in the frame 11 by pulling and pulling. The water inlet end cover 12 is fixed to the water inlet end of the frame 11, the water inlet 121 is fixed to the water inlet end cover 12, the water outlet end cover 13 is fixed to the water outlet end of the frame 11, and the water outlet 131 is fixed to the water outlet end cover 13. The water inlet end cover 12 and the water outlet end cover 13 are preferably fixed to the two ends of the frame 11 with bolts for easy disassembly and assembly.

[0041] Optionally, by Figure 1-Figure 3 As shown, it also includes: a U-shaped insertion frame 7, a disassembly opening 111 for the demister body 2 to pass through is opened on the frame 11, the U-shaped insertion frame 7 is fixed at a position corresponding to the disassembly opening 111 in the frame 11, and a slot 71 for accommodating the demister body 2 is opened in the U-shaped insertion frame 7, and the U-shaped insertion frame 7 is used to realize the pull-out installation of the demister body 2.

[0042] Preferably, by Figure 1 and Figure 2 As shown, it also includes: a sealing door panel 3, a fixing plate 4 and a manual bolt 5. The sealing door panel 3 is hinged on the frame 11 at a position corresponding to the disassembly and assembly port 111. The fixing plate 4 is fixed to the free end of the sealing door panel 3. The manual bolt 5 penetrates the fixing plate 4 and is connected to the frame 11 by threaded engagement. After the demister body 2 is installed, the sealing door panel 3 is closed and the manual bolt 5 is tightened. At this time, the sealing door panel 3 is against the demister body 2 from the end to ensure the stability of the installation of the demister body 2. When the demister body 2 needs to be disassembled, the manual bolt 5 is unscrewed, and the sealing door panel 3 is opened and the demister body 2 is directly pulled out, which is very convenient.

[0043] Preferably, by Figure 1 and Figure 2 As shown, a rubber sealing ring 6 is bonded and fixed on the sealing door panel 3. After the sealing door panel 3 is closed and the manual bolt 5 is tightened, the rubber sealing ring 6 shrinks to improve the sealing performance of the sealing door panel 3 and avoid water leakage.

[0044] Preferably, by Figure 1 and Figure 2 As shown, a handle No. 1 21 is fixed on the end face of the demister body 2, and an avoidance hole 31 for the handle No. 1 21 to pass through is opened on the sealing door panel 3. The handle No. 1 21 is used to facilitate the withdrawal of the demister body 2. After the sealing door panel 3 is closed, the handle No. 1 21 passes through the avoidance hole 31.

[0045] Preferably, by Figure 1 and Figure 2 As shown, a second handle 32 is fixed on the sealing door panel 3 near the free end, and the second handle 32 is used to facilitate opening the sealing door panel 3.

[0046] Preferably, by Figure 1 , Figure 2 and Figure 4 As shown, it also includes: an inlet guide cover 122 and an outlet guide cover 132. The inlet guide cover 122 is fixed in the frame 11 at a position close to the water inlet 121, and the outlet guide cover 132 is fixed in the frame 11 at a position close to the water outlet 131. The inlet guide cover 122 and the outlet guide cover 132 are used to guide the water flow to ensure that the water flow reliably enters the falling film evaporator.

[0047] Example 2

[0048] Depend on Figure 1 and Figure 2 As shown, there are two demister bodies 2 distributed at intervals, and two demister bodies 2 can generally meet daily needs. Theoretically, the demister bodies 2 can also be designed to have other numbers. Taking the setting of two demister bodies 2 as an example, when one of the demister bodies 2 needs to be cleaned, it is only necessary to disassemble the demister body 2, and then lock the sealing door panel 3 after disassembly. The remaining demister body 2 can still be used for defoaming without long-term shutdown, thereby ensuring processing efficiency.

[0049] Working principle and use process of the utility model: When the wire mesh demister of the utility model is used, the water outlet 131 is fixed to the water inlet or water inlet pipe of the falling film evaporator by conventional means. The fixing direction of the wire mesh demister is determined according to the actual situation. The water flows into the water inlet 121 from the water inlet pipe, and then enters the outer shell 1. The demister body 2 is used to demister in the outer shell 1, and then enters the falling film evaporator. The axis of the water inlet 121 coincides with the axis of the water outlet 131, which can fully demister the incoming water and has high demister efficiency.

[0050] The demister body 2 is installed in the outer shell 1 by pulling out, and is easy to install, use, disassemble, clean and replace;

[0051] In actual use, the demister main body 2 can be designed as two. When one of the demister main bodies 2 needs to be cleaned, it is only necessary to disassemble the demister main body 2. After disassembly, the sealing door panel 3 is locked. The remaining demister main body 2 can still be used for defoaming without long-term shutdown, thereby ensuring processing efficiency.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A wire mesh demister for a falling film evaporator, comprising a demister body (2), characterized in that: Also includes: An outer shell (1), wherein a water inlet (121) and a water outlet (131) are respectively fixed at both ends of the outer shell (1), and the axes of the water inlet (121) and the water outlet (131) coincide with each other, and the water outlet (131) is fixed on the water inlet or water inlet pipe of the falling film evaporator, and the demister body (2) is installed in the outer shell (1) by pulling.

2. The wire mesh demister for a falling film evaporator according to claim 1, characterized in that: The outer shell (1) comprises: A frame (11), wherein the demister body (2) is installed in the frame (11) by pulling; A water inlet end cover (12), wherein the water inlet end cover (12) is fixed to the water inlet end of the frame (11), and the water inlet (121) is fixed to the water inlet end cover (12); A water outlet end cover (13), wherein the water outlet end cover (13) is fixed to the water outlet end of the frame (11), and the water outlet (131) is fixed to the water outlet end cover (13).

3. The wire mesh demister for a falling film evaporator according to claim 2, characterized in that: Also includes: A U-shaped insert frame (7) is provided on the frame (11) with a disassembly opening (111) for the demister body (2) to pass through; the U-shaped insert frame (7) is fixed in the frame (11) at a position corresponding to the disassembly opening (111); and a slot (71) capable of accommodating the demister body (2) is provided in the U-shaped insert frame (7).

4. The wire mesh demister for a falling film evaporator according to claim 3, characterized in that: Also includes: A sealing door panel (3), the sealing door panel (3) being hingedly connected to the frame (11) at a position corresponding to the disassembly opening (111); A fixing plate (4), wherein the fixing plate (4) is fixed to the free end of the sealing door plate (3); A manual bolt (5), wherein the manual bolt (5) penetrates the fixing plate (4) and is connected to the frame (11) by means of a threaded engagement.

5. The wire mesh demister for a falling film evaporator according to claim 4, characterized in that: A rubber sealing ring (6) is bonded and fixed on the sealing door panel (3).

6. The wire mesh demister for a falling film evaporator according to claim 5, characterized in that: A handle number (21) is fixed on the end surface of the demister body (2), and a relief hole (31) for the handle number (21) to pass through is provided on the sealing door plate (3).

7. The wire mesh demister for a falling film evaporator according to claim 6, characterized in that: A second handle (32) is fixed on the sealing door panel (3) at a position close to the free end.

8. The wire mesh demister for a falling film evaporator according to claim 2, characterized in that: Also includes: A water inlet guide cover (122), wherein the water inlet guide cover (122) is fixed in the frame (11) at a position close to the water inlet (121); A water outlet guide cover (132), wherein the water outlet guide cover (132) is fixed in the frame (11) at a position close to the water outlet (131).

9. The wire mesh demister for a falling film evaporator according to claim 1, characterized in that: The demister main bodies (2) are arranged in two intervals.

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