Pipeline anti-blocking device for low-temperature evaporator

Abstract

Two electromagnetic valves are symmetrically arranged, the outer side end of the electromagnetic valve on one side is communicated with a connecting pipe in a screwed mode, the connecting pipe is connected with the low-temperature evaporator, the outer side end of the electromagnetic valve on the other side is communicated with a filter cartridge through a connecting pipe, the electromagnetic valves are communicated with the connecting pipe in a screwed mode, and the filter cartridge is connected with the low-temperature evaporator. The inner side ends of the two electromagnetic valves communicate with hinge seat structures in a threaded mode, a pipeline fixedly communicates between the two hinge seat structures, the side wall of the pipeline fixedly communicates with a filling structure, through the action of the hinge seat structures, the pipeline can conveniently rotate, and through the cooperation of the action of the filling structure, when the pipeline is used for a long time and is scaled and blocked, the pipeline can be conveniently filled. A chemical cleaning agent (a citric acid solution and the like) is injected into the pipeline through the injection structure, the electromagnetic valves on the two sides are closed, a closed space is formed in the pipeline, the pipeline is rotated, the chemical cleaning agent makes full contact with the inner wall of the pipeline and chemically reacts with incrustation, and the incrustation is discharged after being dissolved.

Description

Technical Field

[0001] This utility model relates to the field of piping technology for low-temperature evaporators, and specifically to a pipe anti-clogging device for low-temperature evaporators. Background Technology

[0002] A low-temperature evaporator is a device used to evaporate solvent from a solution at a relatively low temperature, thereby achieving purposes such as solution concentration, solute recovery, or wastewater treatment. It primarily uses heating and depressurization (lowering the boiling point) to cause the solvent to boil and evaporate at a low temperature, separating it from the solute. In many industrial sectors, such as chemical, printing and dyeing, and electroplating, large amounts of wastewater containing harmful substances are generated. Low-temperature evaporators can evaporate the water from the wastewater at relatively low temperatures, concentrating the harmful substances for subsequent treatment or recycling. However, during long-term operation, scale can form on the inner walls of the pipes leading to the evaporator, causing blockages and requiring disassembly and replacement, which is time-consuming and labor-intensive. Utility Model Content

[0003] The purpose of this invention is to provide a pipe anti-clogging device for low-temperature evaporators to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pipe anti-clogging device for a low-temperature evaporator, comprising two solenoid valves symmetrically arranged. The outer end of one solenoid valve is screwed to a connecting pipe, which is connected to the low-temperature evaporator. The outer end of the other solenoid valve is connected to a filter cylinder via a connecting pipe, and the solenoid valve is screwed to the connecting pipe. The inner ends of both solenoid valves are screwed to hinged seat structures, and a pipe is fixedly connected between the two hinged seat structures. A filling structure is fixedly connected to the side wall of the pipe.

[0005] Preferably, the hinged seat structure includes a tube, the outer wall of which is threaded and screwed into the solenoid valve, and the inner wall of the tube is rotatably fitted with a rotating sleeve, the pipe being fixedly inserted into the rotating sleeve.

[0006] Preferably, the filling structure includes a first one-way valve, which is fixedly connected to one side wall of the pipeline. The lower end of the first one-way valve is fixedly connected to a hollow cylinder. The side wall of the hollow cylinder is fixedly connected to a second one-way valve. The flow direction of the first one-way valve is from the inside to the outside of the hollow cylinder, and the flow direction of the second one-way valve is from the outside to the inside of the hollow cylinder. A push rod is installed through the lower end of the inner wall of the hollow cylinder, and a piston is fixedly installed on the inner end of the push rod. The outer wall of the piston is tightly fitted to the inner wall of the hollow cylinder.

[0007] Preferably, it also includes a third one-way valve, which is fixed to the side wall of the connecting pipe.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: The pipe is connected to the main body of the low-temperature evaporator. The solenoid valves on both sides of the pipe allow for adjustment of one or both valves as needed, ensuring a wide range of applicability and convenient control. The hinged seat structure facilitates pipe rotation. Combined with the filling structure, when the pipe becomes clogged with scale after prolonged use, chemical cleaning agents (such as citric acid solution) can be added to the pipe using the filling structure. The solenoid valves on both sides are then closed, creating a sealed space within the pipe. Rotating the pipe allows the chemical cleaning agent to fully contact the inner wall, reacting with the scale and dissolving it before discharge. Simultaneously, the use of the connecting pipe and filter cartridge filters out solid particulate impurities in the fluid. In low-temperature evaporators treating industrial wastewater containing silt and other impurities, the filter screen prevents silt particles from entering the pipe and the core components of the evaporator, preventing these particles from accumulating and causing blockages. Furthermore, the filter cartridge and connecting pipe are detachable, facilitating disassembly, cleaning, and maintenance. This makes the system convenient and highly practical. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0010] Figure 2 This is a side view of the present invention;

[0011] Figure 3 This is a three-dimensional schematic diagram of the hinged seat structure;

[0012] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0013] In the diagram: 1-connector, 2-solenoid valve, 3-hinged seat structure, 31-insertion tube, 32-rotating sleeve, 4-pipe, 5-filling structure, 51-first check valve, 52-second check valve, 53-hollow cylinder, 54-piston, 55-push rod, 6-connecting pipe, 7-filter cartridge, 8-third check valve. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4This utility model provides a pipe anti-clogging device for a low-temperature evaporator, including two solenoid valves 2, which are symmetrically arranged. The outer end of one solenoid valve 2 is screwed to a connecting pipe 1, which is connected to the low-temperature evaporator. The outer end of the other solenoid valve 2 is connected to a filter cylinder 7 through a connecting pipe 6. The solenoid valve 2 is screwed to the connecting pipe 6. The inner ends of both solenoid valves 2 are screwed to a hinge seat structure 3. A pipe 4 is fixedly connected between the two hinge seat structures 3. A filling structure 5 is fixedly connected to the side wall of the pipe 4.

[0016] Connected to the main body of the low-temperature evaporator via pipe 1, and with solenoid valves 2 on both sides of pipe 4, one or both solenoid valves 2 can be adjusted to open or close as needed, ensuring the wide applicability and convenient control of pipe 4. The hinged seat structure 3 facilitates the rotation of pipe 4. In conjunction with the filling structure 5, when pipe 4 becomes clogged with scale after prolonged use, chemical cleaning agents (such as citric acid solution) can be added to pipe 4 using the filling structure 5. The solenoid valves 2 on both sides are then closed, creating a sealed space within pipe 4. Rotating pipe 4 allows the chemical cleaning agent to fully contact the inner wall of pipe 4, reacting chemically with the scale to dissolve and drain it. Simultaneously, the connecting pipe 6, in conjunction with the filter cartridge 7, filters out solid particulate impurities in the fluid. In low-temperature evaporators treating industrial wastewater containing silt and other impurities, the filter screen prevents silt particles from entering the pipes and the core components of the evaporator, preventing these particles from accumulating and causing blockages. Furthermore, the filter cartridge 7 and connecting pipe 6 are detachable, facilitating disassembly, cleaning, and maintenance, making it convenient and highly practical.

[0017] The hinged seat structure 3 includes a tube 31, the outer wall of which is threaded and screwed into the solenoid valve 2. The inner wall of the tube 31 is rotatably fitted with a rotating bushing 32, and the pipe 4 is fixedly inserted into the rotating bushing 32.

[0018] The thread on the outer wall of the insertion tube 31 matches the thread on the inner wall of the solenoid valve 2, making it easy to disassemble and connect the insertion tube 31. At the same time, the inner wall of the insertion tube 31 is rotatably connected to the rotating shaft sleeve 32, which facilitates the rotation of the pipeline 4 during the cleaning process.

[0019] The filling structure 5 includes a first one-way valve 51, which is fixedly connected to one side wall of the pipe 4. The lower end of the first one-way valve 51 is fixedly connected to a hollow cylinder 53. The side wall of the hollow cylinder 53 is fixedly connected to a second one-way valve 52. The flow direction of the first one-way valve 51 is from the inside to the outside of the hollow cylinder 53, and the flow direction of the second one-way valve 52 is from the outside to the inside of the hollow cylinder 53. A push rod 55 is installed through the lower end of the inner wall of the hollow cylinder 53. A piston 54 is fixedly installed on the inner end of the push rod 55. The outer wall of the piston 54 is tightly fitted to the inner wall of the hollow cylinder 53.

[0020] When the filling structure 5 is needed, first connect the container storing the citric acid solution to the second one-way valve 52 through the pipe, and pull the push rod 55. The push rod 55 drives the piston 54 to move toward the outer end of the hollow cylinder 53, drawing in the internal air to form a suction force, and drawing the citric acid solution in the container into the hollow cylinder 53. After the solution is filled, squeeze the push rod 55, drive the piston 54 to move toward the first one-way valve 51, and squeeze the citric acid solution into the pipe 4 through the first one-way valve 51.

[0021] It also includes a third check valve 8, which is fixed to the side wall of the connecting pipe 6.

[0022] After closing the solenoid valve on the side near the connecting pipe 6, the cleaning water is introduced into the connecting pipe 6 through the third one-way valve 8, and the filter screen in the filter cylinder 7 is flushed in reverse. The impurities on the filter screen are washed away by the reverse water flow, so that the filter screen can continue to work normally and reduce the frequency of manual cleaning or replacement.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe anti-clogging device for a low-temperature evaporator, characterized in that: It includes two solenoid valves (2), which are symmetrically arranged. The outer end of one solenoid valve (2) is screwed to a connecting pipe (1), which is connected to a low-temperature evaporator. The outer end of the other solenoid valve (2) is connected to a filter cartridge (7) through a connecting pipe (6). The solenoid valve (2) is screwed to the connecting pipe (6). The inner ends of both solenoid valves (2) are screwed to a hinge seat structure (3). A pipe (4) is fixedly connected between the two hinge seat structures (3). A filling structure (5) is fixedly connected to the side wall of the pipe (4).

2. The pipe anti-clogging device for a low-temperature evaporator according to claim 1, characterized in that: The hinged seat structure (3) includes a tube (31), the outer wall of the tube (31) is threaded, and the tube (31) is screwed into the solenoid valve (2). The inner wall of the tube (31) is rotatably fitted with a rotating bushing (32), and the pipe (4) is fixedly inserted into the rotating bushing (32).

3. The pipe anti-clogging device for a low-temperature evaporator according to claim 1, characterized in that: The filling structure (5) includes a first one-way valve (51), which is fixedly connected to one side wall of the pipe (4). The lower end of the first one-way valve (51) is fixedly connected to a hollow cylinder (53). The side wall of the hollow cylinder (53) is fixedly connected to a second one-way valve (52). The flow direction of the first one-way valve (51) is from inside the hollow cylinder (53) to outside the hollow cylinder (53). The flow direction of the second one-way valve (52) is from outside the hollow cylinder (53) to inside the hollow cylinder (53). A push rod (55) is installed through the lower end of the inner wall of the hollow cylinder (53). A piston (54) is fixedly installed on the inner side of the push rod (55). The outer wall of the piston (54) is tightly fitted to the inner wall of the hollow cylinder (53).

4. The pipe anti-clogging device for a low-temperature evaporator according to claim 1, characterized in that: It also includes a third one-way valve (8), which is fixed to the side wall of the connecting pipe (6).

Images