Evaporator pickling device

Abstract

The utility model relates to the technical field of evaporator pickling equipment, in particular to an evaporator pickling device which comprises an evaporator body and an acid adding piece, a liquid inlet pipe is vertically and fixedly communicated with the upper end face of the evaporator body, and a liquid discharge pipe is vertically and fixedly communicated with the lower end face of the evaporator body. The outer circumferential surface of the liquid inlet pipe is horizontally communicated and fixed with a branch pipe, the bottom end of the branch pipe is vertically communicated and assembled with an acid adding piece, the upper part of the outer circumferential surface of the branch pipe is vertically communicated and fixed with an acid adding pipe, the acid adding piece comprises an acid storage barrel, the top end of the acid storage barrel is opened, and the opening end of the acid storage barrel is assembled at the bottom end of the branch pipe; a hydraulic rod is vertically fixed to the bottom face of the acid storage barrel, and a liquid pushing piece is vertically assembled in the acid storage barrel in a sliding mode and fixedly connected with the output end of the hydraulic rod. The top of the cooling pipe in the evaporator is in contact with more acid liquor, the descaling effect is good, the bottom of the cooling pipe in the evaporator is in contact with less acid liquor, the descaling effect is poor, and the descaling effect of the evaporator is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporator pickling equipment, in particular to an evaporator pickling device. Background Art

[0002] Evaporator pickling is a chemical cleaning method to remove deposits and dirt inside the evaporator. It is mainly used to remove pollutants such as scale, rust, and organic matter. During the pickling process of the evaporator, it is difficult to pickle the lower half thoroughly because the scale in the lower half is basically pickled by pickling gravity, which makes it difficult to pickle thoroughly.

[0003] The existing announcement number is CN205501423U, and its name is an evaporator pickling device, which includes a main pipe, a first spray device and a second spray device. The main pipe is arranged vertically, the first spray device is connected to the bottom of the main pipe, and two second spray devices are provided, which are symmetrically connected to the left and right sides of the main pipe. The second spray device includes a connecting pipe and a telescopic pipe that are interconnected. The telescopic pipe is telescopic in the horizontal direction. The telescopic pipes of the two second spray devices are oriented oppositely, and spray holes are evenly distributed on the telescopic pipe. The evaporator pickling device uses layered pickling to fully pickle the scale of the evaporator, saving a large amount of acid for the factory and having great economic benefits; it avoids long-term acid scouring on the top and damage to the heat exchange tube; the telescopic device is used to avoid the spray device in the lower half affecting the heat exchange effect.

[0004] However, when the above-mentioned evaporator is pickled, acid is sprayed in the evaporator by using a spray rod. However, this spraying method sprays from top to bottom, so the top of the cooling tube in the evaporator is exposed to more acid, and the descaling effect is better, while the bottom of the cooling tube in the evaporator is exposed to less acid, and the descaling effect is poor, which affects the descaling effect of the evaporator. Utility Model Content

[0005] The utility model solves the problems in the related technology and proposes an evaporator pickling device.

[0006] In order to solve the above technical problems, the utility model is realized through the following technical solutions: an evaporator pickling device, comprising an evaporator body and an acid adding component, the upper end surface of the evaporator body is vertically connected and fixed with a liquid inlet pipe, and the lower end surface of the evaporator body is vertically connected and fixed with a liquid discharge pipe, the outer circumferential surface of the liquid inlet pipe is horizontally connected and fixed with a branch pipe, and the bottom end of the branch pipe is vertically connected and assembled with an acid adding component, the upper part of the outer circumferential surface of the branch pipe is vertically connected and fixed with the acid adding pipe, the acid adding component comprises an acid storage cylinder, the top end of the acid storage cylinder is open, and the open end of the acid storage cylinder is assembled at the bottom end of the branch pipe, a hydraulic rod is vertically fixed on the bottom surface of the acid storage cylinder, and a liquid pushing component is vertically slidably assembled inside the acid storage cylinder, and the liquid pushing component is fixedly connected to the output end of the hydraulic rod.

[0007] As a preferred solution, the liquid inlet pipe is connected to and fixed with a first control valve, and the branch pipe is connected to and fixed with a second control valve.

[0008] As a preferred solution, a third control valve is connected and fixed on the acid addition pipe, and a screw barrel is vertically connected and fixed at the top end of the acid addition pipe.

[0009] As a preferred solution, a spiral ring is vertically connected and fixed at the open end of the acid storage cylinder, and a plurality of convex strips are evenly and vertically fixed on the inner circumference of the acid storage cylinder.

[0010] As a preferred solution, a spiral ring is vertically connected and fixed to the bottom end of the branch pipe, and the spiral ring is threadedly assembled and connected to the spiral barrel ring.

[0011] As a preferred solution, the liquid pushing part includes a push plate, which is horizontally arranged inside the acid storage cylinder, and the bottom surface of the push plate is fixedly connected to the output end of the hydraulic rod, a spring is vertically fixed on the top surface of the push plate, and a top plate is horizontally fixed on the top of the spring, and a card groove is vertically opened on the outer circumferential surface of the push plate and the top plate, and the card groove is vertically slidably assembled with multiple convex strips.

[0012] As a preferred solution, a groove is provided on the outer circumferential surface of the top plate, and a sealing ring is fixed in the groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: during use, the acid liquid that needs pickling is added from the acid adding pipe, the acid liquid flows into the branch pipe, and is guided to the acid storage cylinder of the acid adding part through the branch pipe. The acid liquid is continuously added to press the liquid pushing part to move, and the acid liquid pressure in the acid storage cylinder is continuously ensured. Then, the branch pipe is opened and the acid liquid is pushed to be added from the liquid inlet pipe of the evaporator body under the action of pressure. Under the thrust of the liquid pushing part, the acid liquid is pushed into the evaporator body at a pressurized level, ensuring the pressure of the acid liquid added to the evaporator body, ensuring that the acid liquid fully contacts the pipeline for pickling and descaling, and ensuring the descaling effect on the evaporator body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the evaporator body in the decomposed state according to an embodiment of the present invention;

[0017] Figure 4 This is a schematic structural diagram of the acid adding member in the decomposed state according to an embodiment of the present invention;

[0018] Figure 5 It is a schematic structural diagram of the air pusher in the decomposed state in an embodiment of the present utility model.

[0019] In the figure: 1. Evaporator body; 11. Liquid inlet pipe; 111. First control valve; 12. Branch pipe; 121. Second control valve; 13. Acid adding pipe; 131. Screw barrel; 132. Third control valve; 14. Screw ring; 2. Acid adding part; 21. Acid storage barrel; 22. Screw barrel ring; 23. Raised strip; 24. Hydraulic rod; 25. Liquid pushing part; 251. Push plate; 252. Slot; 253. Spring; 254. Top plate; 255. Groove; 256. Sealing ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0023] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0024] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0025] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0026] like Figures 1 to 5As shown, an evaporator pickling device comprises an evaporator body 1 and an acid adding part 2, the upper end surface of the evaporator body 1 is vertically connected and fixed with a liquid inlet pipe 11, and the lower end surface of the evaporator body 1 is vertically connected and fixed with a liquid discharge pipe, the outer circumferential surface of the liquid inlet pipe 11 is horizontally connected and fixed with a branch pipe 12, and the bottom end of the branch pipe 12 is vertically connected and assembled with the acid adding part 2, the upper part of the outer circumferential surface of the branch pipe 12 is vertically connected and fixed with an acid adding pipe 13, the acid adding part 2 comprises an acid storage cylinder 21, the top end of the acid storage cylinder 21 is open, and the open end of the acid storage cylinder 21 is assembled at the bottom end of the branch pipe 12, a hydraulic rod 24 is vertically fixed on the bottom surface of the acid storage cylinder 21, and the interior of the acid storage cylinder 21 is vertically slidably assembled with a push rod 24. The liquid part 25 and the liquid pushing part 25 are fixedly connected to the output end of the hydraulic rod 24. During use, the acid liquid that needs to be pickled is added from the acid adding pipe 13, and the acid liquid flows into the branch pipe 12. It is guided to the acid storage cylinder 21 of the acid adding part 2 through the branch pipe 12. The acid liquid is continuously added to press the liquid pushing part 25 to move, and the pressure of the acid liquid in the acid storage cylinder 21 is continuously ensured. Then the branch pipe 12 is opened, and the acid liquid is pushed to be added from the liquid inlet pipe 11 of the evaporator body 1 under the action of pressure. Under the thrust of the liquid pushing part 25, the acid liquid is pushed into the evaporator body 1 at a pressurized level, ensuring the pressure of the acid liquid added to the evaporator body 1, ensuring that the acid liquid fully contacts the pipeline for pickling and descaling, and ensuring the descaling effect on the evaporator body 1.

[0027] In one embodiment, Figure 2 and 3 As shown, a first control valve 111 is connected and fixed on the liquid inlet pipe 11, a second control valve 121 is connected and fixed on the branch pipe 12, and a third control valve 132 is connected and fixed on the acid adding pipe 13, and a spiral barrel 131 is vertically connected and fixed on the top of the acid adding pipe 13. During normal use of the evaporator body 1, the first control valve 111 on the liquid inlet pipe 11 is rotated to open the liquid inlet pipe 11, and then the second control valve 121 on the branch pipe 12 is closed. On the contrary, when acid is added, the first control valve 111 on the liquid inlet pipe 11 is rotated to close the liquid inlet pipe 11, and then the second control valve 121 on the branch pipe 12 is opened to guide the acid in. At the same time, when acid is added into the liquid storage cylinder 21, the second control valve 121 on the branch pipe 12 is closed, and then the third control valve 132 on the acid adding pipe 13 is opened, thereby controlling the acid to enter the liquid storage cylinder 21 for pressurized storage.

[0028] In one embodiment, Figure 3 and 4 As shown, a spiral ring 22 is vertically connected and fixed at the open end of the acid storage cylinder 21, and a plurality of convex strips 23 are evenly and vertically fixed on the inner circumferential surface of the acid storage cylinder 21. A spiral ring 14 is vertically connected and fixed at the bottom end of the branch pipe 12, and the spiral ring 14 is threadedly assembled with the spiral ring 22. The spiral ring 22 at the top of the liquid storage cylinder 21 is threadedly assembled with the spiral ring 14 at the bottom end of the branch pipe 12, which facilitates the assembly of the spiral ring 14 at the bottom end of the branch pipe 12.

[0029] In one embodiment, Figure 4 and 5 As shown, the liquid pushing member 25 includes a push plate 251, which is horizontally arranged inside the acid storage cylinder 21, and the bottom surface of the push plate 251 is fixedly connected to the output end of the hydraulic rod 24, a spring 253 is vertically fixed on the top surface of the push plate 251, and a top plate 254 is horizontally fixed on the top of the spring 253, and a card groove 252 is vertically opened on the outer circumference of the push plate 251 and the top plate 254, and the card groove 252 is vertically slidably assembled with a plurality of ridges 23, a groove 255 is opened on the outer circumference of the top plate 254, and a sealing ring 256 is fixed in the groove 255. During use, the hydraulic rod 24 is started to extend, pushing the push plate 251 upward, pushing the pressurized acid into the evaporator body 1, and at the same time, when the acid is added, the acid presses the spring 253 to deform, and the deformation force of the spring 253 pushes the top plate 254 to push the acid out.

[0030] In this embodiment, during use, the acid liquid that needs to be pickled is added from the acid adding pipe 13, the acid liquid flows into the branch pipe 12, and is guided to the acid storage cylinder 21 of the acid adding component 2 through the branch pipe 12. The acid liquid is continuously added to press the liquid pushing component 25 to move, and the pressure of the acid liquid in the acid storage cylinder 21 is continuously ensured. Then, the branch pipe 12 is opened, and the acid liquid is pushed to be added from the liquid inlet pipe 11 of the evaporator body 1 under the action of pressure. Under the thrust of the liquid pushing component 25, the acid liquid is pressurized and pushed into the evaporator body 1, ensuring the pressure of the acid liquid added to the evaporator body 1.

[0031] The above is a preferred embodiment of the present invention. Technicians in the field of the present invention can also change and modify the above embodiment. Therefore, the present invention is not limited to the above specific embodiment. Any obvious improvements, replacements or modifications made by technicians in this field on the basis of the present invention are within the scope of protection of the present invention.

Claims

1. An evaporator pickling device, characterized in that: The invention comprises an evaporator body (1) and an acid adding member (2), wherein the upper end surface of the evaporator body (1) is vertically connected and fixed with a liquid inlet pipe (11), and the lower end surface of the evaporator body (1) is vertically connected and fixed with a liquid discharge pipe, and the outer circumferential surface of the liquid inlet pipe (11) is horizontally connected and fixed with a branch pipe (12), and the bottom end of the branch pipe (12) is vertically connected and assembled with the acid adding member (2), and the upper end of the outer circumferential surface of the branch pipe (12) is vertically connected to the outer circumferential surface of the branch pipe (12). An acid adding pipe (13) is fixed, and the acid adding member (2) includes an acid storage cylinder (21). The top end of the acid storage cylinder (21) is open, and the open end of the acid storage cylinder (21) is assembled on the bottom end of the branch pipe (12). A hydraulic rod (24) is vertically fixed on the bottom surface of the acid storage cylinder (21), and a liquid pushing member (25) is vertically slidably assembled inside the acid storage cylinder (21), and the liquid pushing member (25) is fixedly connected to the output end of the hydraulic rod (24).

2. The evaporator pickling device according to claim 1, characterized in that: The liquid inlet pipe (11) is connected to and fixed with a first control valve (111), and the branch pipe (12) is connected to and fixed with a second control valve (121).

3. The evaporator pickling device according to claim 2, characterized in that: The acid adding pipe (13) is connected and fixed with a third control valve (132), and the top end of the acid adding pipe (13) is vertically connected and fixed with a screw barrel (131).

4. The evaporator pickling device according to claim 3, characterized in that: A spiral ring (22) is vertically connected and fixed at the open end of the acid storage cylinder (21), and a plurality of convex strips (23) are evenly and vertically fixed on the inner circumferential surface of the acid storage cylinder (21).

5. The evaporator pickling device according to claim 3, characterized in that: The bottom end of the branch pipe (12) is vertically connected and fixed with a screw ring (14), and the screw ring (14) is threadedly assembled with the screw barrel ring (22).

6. The evaporator pickling device according to claim 2, characterized in that: The liquid pushing member (25) comprises a push plate (251), the push plate (251) being horizontally arranged inside the acid storage cylinder (21), and the bottom surface of the push plate (251) being fixedly connected to the output end of the hydraulic rod (24), a spring (253) being vertically fixed on the top surface of the push plate (251), and a top plate (254) being horizontally fixed on the top end of the spring (253), a clamping groove (252) being vertically opened on the outer circumferential surfaces of the push plate (251) and the top plate (254), and the clamping groove (252) being vertically slidably assembled with the plurality of convex strips (23).

7. The evaporator pickling device according to claim 6, characterized in that: A groove (255) is provided on the outer circumferential surface of the top plate (254), and a sealing ring (256) is fixed in the groove (255).

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