Equipment body liquid level meter flushing pipeline

Abstract

The utility model discloses an equipment body liquid level meter flushing pipeline which comprises a main pipe, an auxiliary pipe, a valve, a liquid level generator, a liquid level meter and a container, the main pipe is connected with the auxiliary pipe through the valve, and the liquid level generator and the liquid level meter are installed on the two sides of the container and connected with the container through the valve. According to the utility model, the second connecting pipe, the third connecting pipe, the fourth connecting pipe, the fifth connecting pipe, the second valve, the liquid level meter, the third valve, the fourth valve, the liquid level generator and the fifth valve are dredged through one-time flushing, so that the workload of isolating, replacing and cleaning the pipelines, the valves and the liquid level device by workers is reduced; therefore, misoperation is reduced, safety production is guaranteed, labor intensity of workers is reduced, fire and explosion accidents caused by leakage are avoided, the field environment is improved, and occupational health is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of chemical production equipment, and particularly relates to a flushing pipeline for a liquid level gauge of an equipment body. Background Art

[0002] In a container, the height of a liquid medium is called the liquid level, and the instrument for measuring the liquid level is called a liquid level gauge. The liquid level gauge is a kind of level instrument and is made based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid. According to the principle that the pressure generated by liquids with different specific gravities at different heights is linearly related, the accurate measurement and transmission of the volume, liquid height, and weight of water, oil, and paste can be realized, and it can be widely applied to multiple fields.

[0003] However, the liquid media used inside the liquid level gauge and the liquid level transmitter are usually cationic compounds or solutions containing metal cations. When the machine runs for too long, the cations are reduced and precipitated to form mineral salt precipitates, which easily cause blockage problems inside the pipeline. This kind of problem often requires the staff to regularly isolate, replace, and clean the pipeline, and then clean and dredge the liquid level gauge after passing the inspection. The cleaning frequency is relatively high, and accidents such as leakage and ignition of crude acetylene are likely to occur.

[0004] In view of the defects of the prior art, the utility model flushes and dredges the pipeline by introducing liquid into the pipeline, thereby ensuring safe production and preventing leakage, ignition, and explosion accidents. Summary of the Invention

[0005] The utility model aims at the above problems and provides a flushing pipeline for a liquid level gauge of an equipment body, which solves the problems that the root of the traditional flushing pipeline is seriously blocked, production accidents are likely to occur, and valve leakage is likely to occur due to too high cleaning frequency, seriously affecting the safety and health of the production environment and production personnel.

[0006] The technical solution adopted by the utility model is as follows: a flushing pipeline for a liquid level gauge of an equipment body includes a main pipe and a sub-pipe. The main pipe and the sub-pipe are communicated by a first connecting pipe, and a first valve is arranged on the first connecting pipe; three-way pipes are arranged at both ends of the sub-pipe, and through the three-way pipes for diversion, the sub-pipe is communicated with the container by a second connecting pipe, a third connecting pipe, a fourth connecting pipe, and a fifth connecting pipe respectively; a second valve is arranged on the second connecting pipe, a liquid level gauge and a third valve are arranged on the third connecting pipe, a fourth valve is arranged on the fourth connecting pipe, and a liquid level generator and a fifth valve are arranged on the fifth connecting pipe.

[0007] Further, the second connecting pipe and the fourth connecting pipe are located on both sides of the container, the third connecting pipe is located above the second connecting pipe, and the fifth connecting pipe is located above the fourth connecting pipe.

[0008] Further, the nominal diameter of the auxiliary pipe is 25 mm to 30 mm.

[0009] Further, the first valve, the second valve, the third valve, the fourth valve and the fifth valve are all ball valves.

[0010] Further, the nominal diameter of the first valve is 25 mm to 30 mm; the nominal diameters of the second valve and the third valve are 40 mm to 45 mm; the nominal diameters of the fourth valve and the fifth valve are 8 mm to 10 mm.

[0011] Advantages of the present utility model:

[0012] In the present utility model, flushing water flows in the main pipe. The flushing water is clean waste sodium hypochlorite water with a pH value of 6.5. The flushing water enters the auxiliary pipe along the main pipe. Three-way pipes are provided at both ends of the auxiliary pipe. Through the three-way pipes for diversion, the flushing water can enter the second connecting pipe, the third connecting pipe, the fourth connecting pipe and the fifth connecting pipe, so as to realize the dredging of the second connecting pipe, the third connecting pipe, the fourth connecting pipe and the fifth connecting pipe, as well as the second valve, the liquid level gauge, the third valve, the fourth valve, the liquid level generator and the fifth valve during one flushing, prevent the soft connection from catching fire or inhaling oxygen and causing an explosion due to blockage, reduce the workload of the staff for isolating, replacing and cleaning the pipeline valves and the liquid level device, so as to reduce misoperation, ensure safe production, reduce the labor intensity of the staff, prevent the occurrence of leakage, fire and explosion accidents, improve the on-site environment and be beneficial to occupational health.

[0013] In addition to the purposes, features and advantages described above, the present utility model has other purposes, features and advantages. The present utility model will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0015] Figure 1 is a schematic structural diagram of the present utility model.

[0016] Reference numerals:

[0017] 1 - main pipe, 2 - auxiliary pipe, 3 - first connecting pipe, 4 - third connecting pipe, 5 - second connecting pipe, 6 - fourth connecting pipe, 7 - fifth connecting pipe, 8 - first valve, 9 - second valve, 10 - third valve, 11 - fourth valve, 12 - fifth valve, 13 - liquid level gauge, 14 - liquid level generator DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0020] Refer to Figure 1 , a flushing pipeline for a liquid level gauge of a device body, comprising a main pipe 1 and a sub-pipe 2. The main pipe 1 and the sub-pipe 2 are communicated by a first connecting pipe 3, and a first valve 8 is provided on the first connecting pipe 3; three-way pipes are provided at both ends of the sub-pipe 2, and through the three-way pipes for flow diversion, the sub-pipe 2 is respectively communicated with the container by a second connecting pipe 5, a third connecting pipe 4, a fourth connecting pipe 6 and a fifth connecting pipe 7; a second valve 9 is provided on the second connecting pipe 5, a liquid level gauge 13 and a third valve 10 are provided on the third connecting pipe 4, a fourth valve 11 is provided on the fourth connecting pipe 6, a liquid level generator 14 and a fifth valve 12 are provided on the fifth connecting pipe 7. The second connecting pipe 5 and the fourth connecting pipe 6 are located on both sides of the container, the third connecting pipe 4 is located above the second connecting pipe 5, the fifth connecting pipe 7 is located above the fourth connecting pipe 6. The nominal diameter of the sub-pipe 2 is 25 mm to 30 mm. The first valve 8, the second valve 9, the third valve 10, the fourth valve 11 and the fifth valve 12 are all ball valves. The nominal diameter of the first valve 8 is 25 mm to 30 mm; the nominal diameters of the second valve 9 and the third valve 10 are 40 mm to 45 mm; the nominal diameters of the fourth valve 11 and the fifth valve 12 are 8 mm to 10 mm.

[0021] Flushing water flows in the main pipe 1, and the flushing water is clean waste sodium hypochlorite water with a pH value of 6.5. The first valve 8 is opened, and the flushing water enters the auxiliary pipe 2 along the main pipe 1. Both ends of the auxiliary pipe 2 are provided with a tee. Through the diversion of the tee, the flushing water can enter the second connecting pipe 5, the third connecting pipe 4, the fourth connecting pipe 6 and the fifth connecting pipe 7, so as to achieve one-time flushing of the second connecting pipe 5, the third connecting pipe 4, the fourth connecting pipe 6 and the fifth connecting pipe 7 as well as the second valve 9, the liquid level gauge 13, the third valve 10, the fourth valve 11, the liquid level generator 14 and the fifth valve 12, thereby preventing the soft connection from catching fire or inhaling oxygen causing an explosion due to blockage, and reducing the frequency of isolation, replacement and cleaning of the pipeline by staff, so as to reduce misoperation, ensure safe production, reduce the labor intensity of staff, prevent the occurrence of leakage, fire and explosion accidents, and improve the on-site environment, which is beneficial to occupational health.

[0022] The utility model provides a flushing pipeline for a liquid level gauge of an equipment body. By transforming a pipeline with a smaller nominal diameter (for example, a nominal diameter of DN=15mm) into a pipeline with a nominal diameter of 25mm, the injection amount of flushing water is expanded, and the possibility of calcium hydroxide structure inside the traditional small-diameter pipeline is reduced. At the same time, the stop valve used in the traditional working process is improved, and a ball valve is used to replace the stop valve. The ball valve has a more compact structure than the stop valve, is easy to operate and maintain, has good sealing performance, has low friction between sealing surfaces, and has a longer service life. It is also suitable for general working media such as water, solvents and acids, and is suitable for most harsh working environments.

[0023] In one embodiment of the present invention, the traditional liquid level transmitter 14 and the liquid level gauge 13 have serious root pipeline blockage, which can easily cause a false liquid level of the generator. The main control and on-site judgment of the actual object will cause the generator to discharge slag or pour the high liquid level into the two storage buckets, causing the local reaction of calcium carbide to generate heat. The inability to remove the excess heat in time will cause the soft connection to catch fire, or the inhalation of oxygen to catch fire and explode. In the prior art, there is flushing water at the root of the liquid level gauge 13, and the designed pipeline diameter is mostly 15mm. The valves used are mostly stop valves. The stop valve has a large fluid resistance and a large power required for opening and closing. It is not suitable for media with particles, large viscosity, and easy coking. The adjustment performance is poor. The flushing water used is also slurry clear liquid water. The normal production temperature of the generator is 70℃-80℃. The calcium hydroxide scaling inside the pipeline with a diameter of 15 is serious, and the flushing water volume is small, which cannot achieve the flushing effect.

[0024] The workshop then decided to regularly clean the 13 basic valves and pipelines of the generator level gauge. It was found that frequent cleaning could easily lead to valve leakage, which could easily cause crude acetylene leakage and fire. In view of production safety, environmental protection, and the occupational health of employees, the final transformation process was as follows:

[0025] The original flushing water pipeline is transformed by increasing the nominal diameter of the secondary pipe 2 to 25 mm; meanwhile, the flushing water is short-circuited at the root of the liquid level generator 14 and the liquid level gauge 13, solving the problem of the flushing water dead end;

[0026] The globe valve in the prior art is replaced with a ball valve. The ball valve has a simple structure, is easy to operate and maintain. At the same time, it has good regulation performance, small fluid resistance, is easy to open and close. It can also be connected to an electric circuit to remotely control the opening and closing of the ball valve through the circuit. At the same time, the sealing surfaces of the ball and the valve seat are isolated from the medium. When the medium passes through, it will not corrode the valve sealing surface;

[0027] The original slurry clear liquid water is changed to a mixture of production water and clean waste sodium hypochlorite solution with a pH value of 6.5, solving the pipeline structure problem from a chemical perspective;

[0028] In summary, the above transformation process ensures the effective use of the flushing water of the liquid level gauge 13, guarantees the reliable and effective measurement process of the liquid level gauge 13, thereby saving costs, reducing risks, and ensuring the safe operation of the system.

[0029] The utility model belongs to the field of chemical production equipment, specifically involving the outside of chemical containers such as acetylene generators, concentrated alkali solution tanks, concentrated sulfuric acid drying towers, concentrated sulfuric acid storage tanks, and dilute sulfuric acid storage tanks that are prone to crystallization and blockage. By transforming the flushing water, increasing the nominal diameter of the pipeline, replacing the valve, improving the operation efficiency, and reducing the number of times for staff to clean the scale inside the pipeline, the values of the liquid level generator 14 and the liquid level gauge 13 of the generator are detailed and accurate, greatly reducing the dangerous operations of the post personnel caused by inaccurate display of safety accessories.

[0030] The above are only the preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A flushing pipeline for the liquid level gauge of the equipment body, characterized in that, It includes a main pipe and a sub-pipe. The main pipe is communicated with the sub-pipe by a first connecting pipe, and a first valve is provided on the first connecting pipe; three-way pipes are provided at both ends of the sub-pipe, and through the three-way pipes for shunting, the sub-pipe is communicated with the container by a second connecting pipe, a third connecting pipe, a fourth connecting pipe and a fifth connecting pipe respectively; a second valve is provided on the second connecting pipe, a liquid level gauge and a third valve are provided on the third connecting pipe, a fourth valve is provided on the fourth connecting pipe, and a liquid level generator and a fifth valve are provided on the fifth connecting pipe.

2. The flushing pipeline of the equipment body liquid level gauge according to claim 1, characterized in that The second connecting pipe and the fourth connecting pipe are located on both sides of the container, the third connecting pipe is located above the second connecting pipe, and the fifth connecting pipe is located above the fourth connecting pipe.

3. The flushing pipeline of the equipment body liquid level gauge according to claim 1, wherein The nominal diameter of the sub-pipe is 25mm to 30mm.

4. The flushing pipeline of the equipment body liquid level gauge according to claim 1, characterized in that, The first valve, the second valve, the third valve, the fourth valve and the fifth valve are all ball valves.

5. The flushing pipeline of the equipment body liquid level gauge according to claim 1, characterized in that, The nominal diameter of the first valve is 25mm to 30mm; the nominal diameters of the second valve and the third valve are 40mm to 45mm; the nominal diameters of the fourth valve and the fifth valve are 8mm to 10mm.

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