Anti-blocking pipe self-cleaning system for triple-effect evaporator

Abstract

The utility model provides an anti-blocking pipe self-cleaning system for a triple-effect evaporator, which comprises a crystallizing tank, an evaporator, a material passing pipe, two pigging ball valves and a pigging device, the crystallizing tank is connected with the evaporator through the material passing pipe, and the pigging ball valves are connected with the evaporator through the material passing pipe. The two pigging ball valves are respectively mounted at the liquid inlet end and the liquid outlet end of the material passing pipe; the top end of the pigging ball valve is provided with an opening used for placing a pigging device, the pigging ball valve is provided with a sealing assembly used for sealing the opening, and an adjusting assembly used for adjusting the pigging device is rotationally installed in the pigging ball valve. The material passing pipe is connected with a liquid inlet pipe used for inputting pipe washing liquid into the material passing pipe and a liquid outlet pipe used for discharging waste liquid. According to the utility model, the problems that in the prior art, the salting-out phenomenon occurs when materials pass through the material passing pipe arranged between the crystallizing tank of the second-effect evaporator and the third-effect evaporator, so that the interior of the material passing pipe is blocked, and the conveying of the materials is influenced can be solved.

Description

Technical Field

[0001] This utility model relates to the field of evaporator technology, specifically to a self-cleaning system for anti-clogging tubes of a triple-effect evaporator. Background Technology

[0002] A triple-effect evaporator is a highly efficient evaporator that concentrates waste materials through multi-stage evaporation. Its main structure includes the evaporator body, vacuum system, feeding system, heating system, and circulation system. Through the synergistic effect of these components, multi-stage waste concentration is achieved, significantly reducing processing costs and pollution. It also features high efficiency and energy saving, safety and reliability, and a wide processing range.

[0003] Meanwhile, the evaporator is prone to fouling due to scaling, blockage, fibrous material deposition, and silt accumulation. Existing technologies use filters to trap loose particles or fibrous materials that haven't undergone chemical reactions. Backflushing the filters during routine maintenance of the evaporator and piping filtration equipment is a well-known and mature technique for cleaning low-adhesion impurities from the filter surface. However, manual cleaning of the evaporator is inconvenient and frequent cleaning wastes manpower and resources. To address the problems in existing technologies, a utility model with publication number CN221309554U was developed. A novel triple-effect evaporation cleaning device for hazardous waste (hereinafter referred to as Prior Art 1) is disclosed, comprising a water storage tank, an internal filter frame, a first-effect evaporator connected to the water storage tank via a water supply pipe and a first circulation pump, a second-effect evaporator connected to the first-effect evaporator via a water supply pipe and a second circulation pump, a third-effect evaporator connected to the second-effect evaporator via a water supply pipe and a third circulation pump, a crystallization tank connected to the third-effect evaporator via a fourth circulation pump, a steam collector fixedly connected to the top of the evaporator, a water collection tank fixedly connected to the bottom of the evaporator, an installation box fixedly connected to the bottom of the water collection tank, and a descaling structure provided inside the installation box.

[0004] While existing technology 1 cleans scale and impurities adhering to the inner wall of the evaporator by setting up a descaling structure, salt precipitation also occurs when the material passes through the feed pipe between the crystallization tank of the second-effect evaporator and the third-effect evaporator. This leads to blockage inside the feed pipe, affecting material transport. Furthermore, the salt precipitation products are scale such as calcium and magnesium carbonates formed by chemical reactions during material transport due to salt precipitation. These are chemical deposition products that adhere tightly to the pipe wall due to intermolecular forces. Utility Model Content

[0005] The purpose of this invention is to provide a self-cleaning system for anti-clogging pipes in triple-effect evaporators. In actual use, this system can solve the problem in the prior art where salt precipitation occurs when materials pass through the feed pipe between the crystallization tank of a double-effect evaporator and the triple-effect evaporator, leading to blockage inside the feed pipe and affecting the material transport.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A self-cleaning system for anti-clogging pipes in a triple-effect evaporator includes a crystallizer, an evaporator, and a feed pipe. The crystallizer is connected to the evaporator through the feed pipe. The system also includes a cleaning ball valve and a cleaning device. There are two cleaning ball valves, which are respectively installed at the inlet and outlet ends of the feed pipe.

[0008] The top of the pigging ball valve is provided with an opening for inserting the pig, and a sealing component for closing the opening is installed on the pigging ball valve. An adjustment component for adjusting the pig is rotatably installed inside the pigging ball valve.

[0009] The feed pipe is connected to an inlet pipe for introducing washing fluid into the feed pipe and an outlet pipe for discharging waste liquid.

[0010] Preferably, the adjusting assembly includes a rotating part and a rotating rod. The rotating part is rotatably installed inside the pigging ball valve. One end of the rotating rod is connected to the rotating part, and the end of the rotating rod away from the rotating part extends through the pigging ball valve to the outside of the ball valve. A limit groove is provided inside the rotating part.

[0011] Preferably, a handle is fixedly connected to the end of the rotating rod away from the rotating part.

[0012] Preferably, a pressure gauge is installed on the feed pipe.

[0013] Preferably, a filter screen is provided at the end of the pigging ball valve away from the feed pipe.

[0014] Preferably, the sealing assembly includes a fixed rod, a rotating plate, a threaded rod, and a sealing cap. The fixed rod is fixedly installed on the pigging ball valve, the rotating plate is rotatably installed on the top of the fixed rod, the threaded rod is fixedly connected to the rotating plate, and the sealing cap is threadedly connected to the rotating rod.

[0015] Preferably, the opening is provided with a threaded groove, and the sealing cap is threadedly connected to the threaded groove.

[0016] Preferably, a sealing ring is installed on the sealing cap.

[0017] Preferably, the pig is provided with a cleaning section, which is slidably and sealingly connected to the inner wall of the feed pipe.

[0018] Preferably, the end of the pig furthest from the tip is provided with a clearance groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In this embodiment, when it is necessary to clean the calcium magnesium carbonate products and attached impurities generated on the inner wall of the feed pipe, the inlet and outlet ends of the feed pipe are first sealed by the adjustment component. After the feed pipe is sealed by the adjustment component, the feed pipe cleaning solution can be introduced into the feed pipe through the inlet pipe connected to the feed pipe, so that the feed pipe cleaning solution can fully react with the scale and impurities attached to the inner wall of the feed pipe.

[0021] Open the sealing assembly used to close the opening, and the pig can be placed into the regulating assembly. By rotating the regulating assembly, the pig installed in the regulating assembly can be rotated from a vertical position to a horizontal position. At this time, the pig ball valve installed at the liquid inlet end of the feed pipe no longer closes the feed pipe. When the liquid in the crystallizer enters the feed pipe through the pig ball valve installed at the liquid inlet end of the feed pipe, it can push the pig to move horizontally towards the liquid outlet end of the feed pipe. The pig is slidably sealed to the inner wall of the feed pipe. As the pig moves, the flushing fluid in the feed pipe can be discharged to the outside of the feed pipe through the liquid outlet pipe. During the movement, the pig can scrape off the scale and impurities remaining on the inner wall of the feed pipe. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a perspective view of the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of this utility model.

[0025] Figure 3 This utility model Figure 2 A magnified view of a portion of point A in the middle.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 101-Crystallization tank, 102-Evaporator, 103-Feed pipe, 104-Pipe cleaning ball valve, 105-Pipe cleaning device, 106-Sealing assembly, 107-Regulating assembly, 108-Inlet pipe, 109-Outlet pipe, 110-Rotating part, 111-Rotating rod, 112-Limiting groove, 113-Handle, 114-Filter screen, 115-Fixing rod, 116-Rotating plate, 117-Threaded rod, 118-Sealing cover, 119-Cleaning part, 120-Leaving groove, 121-Opening. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0029] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0032] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0034] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0035] See Figures 1-3 This embodiment discloses a cleaning device for cleaning an evaporator 102. Specifically, it is a self-cleaning system for preventing pipe blockage in a triple-effect evaporator, including a crystallizer 101, an evaporator 102, and a feed pipe 103. The crystallizer 101 is connected to the evaporator 102 through the feed pipe 103. It also includes a cleaning ball valve 104 and a cleaning device 105. There are two cleaning ball valves 104, which are respectively installed at the inlet and outlet of the feed pipe 103.

[0036] The top of the pigging ball valve 104 is provided with an opening 121 for inserting the pig 105. A sealing component 106 for closing the opening 121 is installed on the pigging ball valve 104. An adjusting component 107 for adjusting the pig 105 is rotatably installed inside the pigging ball valve 104.

[0037] The feed pipe 103 is connected to an inlet pipe 108 for introducing washing fluid into the feed pipe 103 and an outlet pipe 109 for discharging waste liquid.

[0038] In this embodiment, when it is necessary to clean the calcium magnesium carbonate products and attached impurities generated on the inner wall of the feed pipe 103, the inlet and outlet ends of the feed pipe 103 are first sealed by the regulating component 107. After the regulating component 107 seals the feed pipe 103, the feed pipe cleaning solution can be introduced into the feed pipe 103 through the inlet pipe 108 connected to the feed pipe 103, so that the feed pipe cleaning solution can fully react with the scale and impurities attached to the inner wall of the feed pipe 103; when .... During the process of component 107 sealing the inlet and outlet ends of the feed pipe 103, the sealing component 106 used to seal the opening 121 is opened, allowing the pig 105 to be placed into the regulating component 107. After the flushing fluid has fully reacted with the scale and impurities, the opening 121 is sealed by the sealing component 106. By rotating the regulating component 107, the pig 105 installed inside the regulating component 107 can be rotated from a vertical position to a horizontal position. At this time, the pig installed in the feed pipe 103... The cleaning ball valve 104 at the inlet end of the feed pipe 103 no longer seals the feed pipe 103. When the liquid in the crystallizer enters the feed pipe 103 through the cleaning ball valve 104 at the inlet end of the feed pipe 103, it can push the cleaning pig 105 to move horizontally towards the outlet end of the feed pipe 103. The cleaning pig 105 is slidably sealed to the inner wall of the feed pipe 103. As the cleaning pig 105 moves, the flushing fluid in the feed pipe can be discharged to the feed pipe 103 through the outlet pipe 109. In addition, the pig 105 can scrape off the scale and impurities remaining on the inner wall of the feed pipe during its movement. When it is necessary to remove the pig 105, the adjusting mechanism installed at the liquid outlet end of the feed pipe 103 is rotated so that the pig 105 can move into the adjusting mechanism. After the pig 105 enters the adjusting mechanism, the adjusting mechanism is rotated again so that the pig 105 is rotated from horizontal to vertical. Then the pig 105 can be taken out through the opening 121 provided on the pig ball valve 104.

[0039] In some embodiments, the adjusting assembly 107 includes a rotating part 110 and a rotating rod 111. The rotating part 110 is rotatably mounted inside the pigging ball valve 104. One end of the rotating rod 111 is connected to the rotating part 110, and the other end of the rotating rod 111, away from the rotating part 110, extends through the pigging ball valve 104 to the outside of the ball valve. A limiting groove 112 is provided inside the rotating part 110. When the rotating part 110 is rotated by rotating the rotating rod 111, causing the limiting groove 112 to be in a vertical state, the limiting groove 112 communicates with the opening 121, and the rotating part 110 can close the feed pipe 103. When the limiting groove 112 is rotated to a horizontal state by the rotating part 110, the limiting groove 112 communicates with the feed pipe 103.

[0040] In some embodiments, a handle 113 is fixedly connected to the end of the rotating rod 111 away from the rotating part 110. By providing the handle 113, the operator can rotate the rotating rod 111 and the rotating part 110 with less effort.

[0041] In some embodiments, a pressure gauge is installed on the feed pipe 103. By observing the value displayed on the pressure gauge, the operator can accurately determine the blockage status within the feed pipe 103.

[0042] In some embodiments, a filter screen 114 is provided at the end of the pigging ball valve 104 away from the feed pipe 103. By providing the filter screen 114, the liquid entering the feed pipe 103 can be initially filtered to prevent large impurities from entering the feed pipe 103 and causing blockage.

[0043] In some embodiments, the sealing assembly 106 includes a fixed rod 115, a rotating plate 116, a threaded rod 117, and a sealing cap 118. The fixed rod 115 is fixedly mounted on the pigging ball valve 104. The rotating plate 116 is rotatably mounted on the top end of the fixed rod 115. The threaded rod 117 is fixedly connected to the rotating plate 116. The sealing cap 118 is threadedly connected to the rotating rod 116. The rotating plate 116 is rotatably mounted on the fixed rod 115 via a bearing. When it is necessary to close the opening 121, rotating the rotating plate 116 causes the threaded rod 117 mounted on the rotating plate 116 to rotate to a position corresponding to the opening 121. Rotating the sealing cap 118 threadedly connected to the threaded rod 117 allows the sealing cap 118 to move towards the opening 121 until the opening 121 is closed.

[0044] In some embodiments, a threaded groove is provided on the opening 121, and the sealing cap 118 is threadedly connected to the threaded groove. By making the sealing cap 118 threadedly connected to the threaded groove, the sealing effect of the sealing cap 118 on the opening 121 can be further improved.

[0045] In some embodiments, a sealing ring is installed on the sealing cap 118. The sealing ring is made of rubber material, and its installation further seals the gap between the sealing cap 118 and the opening 121.

[0046] In some embodiments, the pig 105 is provided with a cleaning section 119, which is slidably and sealingly connected to the inner wall of the feed pipe 103. The cleaning section 119 is made of hard rubber material. As the pig 105 moves toward the discharge end of the feed pipe 103 under the push of the liquid, it can scrape off the scale and impurities attached to the inner wall of the feed pipe 103. In this embodiment, the cleaning section has a bowl-shaped structure. The cleaning section 119 is coaxially arranged with the pig 105, and the opening 121 of the cleaning section faces the liquid discharge end of the feed pipe 103.

[0047] In one embodiment, the end of the pig 105 furthest from its tip is provided with a relief groove 120. By providing the relief groove 120, the contact area between the liquid moving towards the outlet end of the feed pipe 103 and the pig 105 can be increased, thereby making the movement of the pig 105 more stable.

[0048] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cleaning system for preventing clogging of a triple-effect evaporator, comprising a crystallizer (101), an evaporator (102), and a feed pipe (103), wherein the crystallizer (101) is connected to the evaporator (102) via the feed pipe (103), characterized in that: It also includes a pigging ball valve (104) and a pigging device (105). There are two pigging ball valves (104), which are respectively installed at the inlet and outlet of the feed pipe (103). The top of the pigging ball valve (104) is provided with an opening (121) for inserting the pig (105), and a sealing component (106) for closing the opening (121) is installed on the pigging ball valve (104). An adjustment component (107) for adjusting the pig (105) is rotatably installed inside the pigging ball valve (104). The feed pipe (103) is connected to an inlet pipe (108) for introducing cleaning fluid into the feed pipe (103) and an outlet pipe (109) for discharging waste liquid; the inlet pipe (108) can introduce cleaning fluid into the feed pipe (103) so that the cleaning fluid can fully react with the scale and impurities adhering to the inner wall of the feed pipe (103).

2. The anti-clogging tube self-cleaning system for a triple-effect evaporator according to claim 1, characterized in that: The adjusting assembly (107) includes a rotating part (110) and a rotating rod (111). The rotating part (110) is rotatably installed inside the pigging ball valve (104). One end of the rotating rod (111) is connected to the rotating part (110). The end of the rotating rod (111) away from the rotating part (110) extends through the pigging ball valve (104) to the outside of the ball valve. A limit groove (112) is provided inside the rotating part (110).

3. The anti-clogging tube self-cleaning system for a triple-effect evaporator according to claim 2, characterized in that: A handle (113) is fixedly connected to the end of the rotating rod (111) away from the rotating part (110).

4. The anti-clogging tube self-cleaning system for a triple-effect evaporator according to claim 1, characterized in that: A pressure gauge is installed on the feed pipe (103).

5. A self-cleaning system for anti-clogging tubes in a triple-effect evaporator according to claim 1, characterized in that: A filter screen (114) is provided at the end of the pigging ball valve (104) away from the feed pipe (103).

6. A self-cleaning system for anti-clogging tubes in a triple-effect evaporator according to claim 2, characterized in that: The sealing assembly (106) includes a fixed rod (115), a rotating plate (116), a threaded rod (117), and a sealing cap (118). The fixed rod (115) is fixedly installed on the pigging ball valve (104). The rotating plate (116) is rotatably installed on the top of the fixed rod (115). The threaded rod (117) is fixedly connected to the rotating plate (116). The sealing cap (118) is threadedly connected to the rotating rod (111).

7. A self-cleaning system for anti-clogging tubes in a triple-effect evaporator according to claim 6, characterized in that: The opening (121) is provided with a threaded groove, and the sealing cap (118) is threadedly connected to the threaded groove.

8. A self-cleaning system for anti-clogging tubes in a triple-effect evaporator according to claim 7, characterized in that: A sealing ring is installed on the sealing cap (118).

9. A self-cleaning system for anti-clogging tubes in a triple-effect evaporator according to claim 1, characterized in that: The pigging device (105) is provided with a cleaning section (119), which is slidably and sealingly connected to the inner wall of the feed pipe (103).

10. A self-cleaning system for anti-clogging tubes in a triple-effect evaporator according to claim 1, characterized in that: The pig (105) has a relief groove (120) at the end away from the tip.

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