Anti-blocking device for crude benzene lean oil flow taking pipe
By designing a heating cylinder and automatic water replenishment system on the flow extraction pipe, the problem of easy blockage of the flow extraction pipe is solved, effective prevention and simple maintenance of oil-poor condensation is achieved, and the reliability and convenience of use of the equipment are improved.
Patent Information
- Application Number
- CN202421777054.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-25
AI Technical Summary
During the production of crude benzene, the flow pipe is prone to blockage due to oil-poor condensation, resulting in inaccurate flowmeter measurement data. Existing anti-blocking methods such as wrapping insulation cotton requires frequent maintenance and energy consumption.
An anti-blocking device including the flow tube body and the controller is designed. The outer wall of the flow tube body is fixedly connected to the heating cylinder coaxially. The electric heating rod heats clean water to prevent oil lean condensation, and ensures sufficient water in the heating cylinder through an automatic start-stop device and a water replenishment solenoid valve.
Effectively prevents condensation and blockage of oil leaning on the inner wall of the flow pipe, simplifies anti-blocking measures, is easy to use, is highly practical, and reduces maintenance frequency.
Smart Images
Figure CN222798706U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline anti-blocking devices, in particular to an anti-blocking device for a crude benzene lean oil flow taking pipe. Background Art
[0002] In the process of producing crude benzene, the washed oil after debenzenization distillation and separation from crude benzene is called lean oil, and the washed oil after the cooler is pumped to the benzene absorption tower to absorb benzene in the coal gas is called rich oil. The flow pipe is a commonly used delivery pipe in the lean oil delivery process. During the process of transporting the lean oil, the flow pipe is prone to condense on the pipe wall of the flow pipe due to temperature changes, thereby blocking the flow pipe, and then causing the flow meter arranged at the flow pipe to measure the lean oil inaccurately. Therefore, it is necessary to take corresponding measures to prevent the lean oil from condensing and clogging the flow pipe. However, the commonly used anti-blocking method is to wrap the flow pipe with thermal insulation cotton to avoid the lean oil from cooling and condensing and clogging. Wrapping with thermal insulation cotton can prevent clogging to a certain extent, but it needs to be frequently maintained and replaced to ensure the insulation effect, which is relatively labor-intensive. Therefore, the present application proposes a more convenient and practical anti-blocking device for the flow pipe. Utility Model Content
[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a crude benzene lean oil flow pipe anti-blocking device, which solves the problem and the technical solution is that it includes a flow pipe body and a controller, and is characterized in that a heating cylinder is coaxially fixedly connected to the outer wall of the flow pipe body, and two electric connectors symmetrically arranged about its axis are embedded in the upper end of the heating cylinder, and the lower end of each of the electric connectors is electrically connected to an electric heating rod, and the upper side of the heating cylinder is fixedly connected to the outlet end of a water supply pipe, and a water supply solenoid valve electrically connected to the controller is installed on the water supply pipe, and the inlet end of the water supply pipe is fixedly connected to the outlet end of a water storage tank, and an automatic start-stop device used in conjunction with the controller is arranged on the heating cylinder, and the automatic start-stop device cooperates with the controller to control the start and stop of the water supply solenoid valve, and the controller is fixedly installed on the outer wall of the water storage tank.
[0004] Preferably, the automatic start-stop device includes a sleeve fixedly connected to the upper end of the heating cylinder, the sleeve is coaxially slidably connected to a vertical rod, the lower end of the vertical rod is fixedly connected to a hollow float, the upper end of the vertical rod is fixedly connected to a cross rod, the upper end of the cross rod is fixedly connected to a water-stop metal sensor electrically connected to the controller, the lower end of the cross rod is fixedly connected to a water-replenishing metal sensor electrically connected to the controller, the upper end of the heating cylinder is fixedly connected to a mounting rod, the cross rod is provided with a through hole vertically slidably connected to the mounting rod, the upper side of the mounting rod is fixedly connected to a water-stop metal sheet that cooperates with the water-stop metal sensor, and the lower side of the mounting rod is fixedly connected to a water-replenishing metal sheet that cooperates with the water-replenishing metal sensor.
[0005] Preferably, the upper end of the heating cylinder is fixedly connected to a breathing valve.
[0006] The beneficial effects of the utility model are:
[0007] 1. When the present application is in use, the heating cylinder is filled with a sufficient amount of clean water, and the electric heating rod can heat the clean water in the heating cylinder, thereby increasing the temperature in the heating cylinder, and then increasing the temperature of the lean oil flowing through the flow-taking tube body, thereby preventing the lean oil from cooling and condensing on the inner wall of the flow-taking tube body to cause blockage. The anti-blocking method is simple and practical.
[0008] 2. In order to prevent the clean water in the heating cylinder from gradually evaporating during long-term use, an automatic start-stop device is provided to cooperate with the controller to control the start and stop of the water replenishment solenoid valve. When the clean water in the heating cylinder is reduced to a certain amount, the automatic start-stop device will control the water replenishment valve solenoid valve to open through the controller, and then the clean water in the water tank can be replenished into the heating cylinder. When it is replenished to a certain amount, the automatic start-stop device will control the water replenishment valve solenoid valve to close through the controller. The present application has a simple structure, is easy to use and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a stereoscopic view of the utility model from the first perspective.
[0010] Figure 2 It is an enlarged view of area A in the first perspective stereoscopic view of the utility model.
[0011] Figure 3 This is a partial three-dimensional cross-sectional view from a second viewing angle of the utility model.
[0012] Figure 4 It is an enlarged view of area B in the partial stereoscopic cross-sectional view from the second viewing angle of the utility model.
[0013] Figure 5 This is a partial three-dimensional cross-sectional view of the utility model from the third viewing angle.
[0014] Reference numerals
[0015] 1. Flow pipe body, 2. Controller, 3. Heating tube, 4. Electric connector, 5. Electric heating rod, 6. Water supply pipe, 7. Water supply solenoid valve, 8. Water storage tank, 9. Automatic start and stop device, 10. Casing, 11. Vertical rod, 12. Hollow float, 13. Cross rod, 14. Water-stop metal sensor, 15. Water-supply metal sensor, 16. Mounting rod, 17. Through hole, 18. Water-stop metal sheet, 19. Water-supply metal sheet, 20. Breathing valve. DETAILED DESCRIPTION
[0016] The following is combined with Figure 1-5 The specific implementation methods of the utility model are further described in detail.
[0017] Embodiment 1, the technical solution is that when the present application is in use, the heating tube 3 is filled with a sufficient amount of clean water, the electric heating rod 5 can heat the clean water in the heating tube 3, thereby increasing the temperature in the heating tube 3, and then increasing the temperature of the lean oil flowing through the flow tube body 1, to prevent the lean oil from cooling and condensing on the inner wall of the flow tube body 1 to cause blockage, and the anti-blocking method is simple and practical.
[0018] In order to prevent the clean water in the heating cylinder 3 from gradually evaporating and disappearing during long-term use, an automatic start-stop device 9 is provided to cooperate with the controller 2 to control the start and stop of the water replenishment solenoid valve 7. When the clean water in the heating cylinder 3 is reduced to a certain amount, the automatic start-stop device will control the water replenishment valve solenoid valve to open through the controller 2, and then the clean water in the water tank 8 can be replenished into the heating cylinder 3. When it is replenished to a certain amount, the automatic start-stop device will control the water replenishment valve solenoid valve to close through the controller 2. The present application has a simple structure, is easy to use and has strong practicality.
[0019] Embodiment 2, based on embodiment 1, specifically, when the present application is in use, the electric connector 4 can be electrically connected to the external power supply facility, thereby ensuring the normal use of the electric heating rod 5, and the water tank 8 of the present application stores sufficient clean water to facilitate the replenishment of the heating tube 3.
[0020] The hollow float 12 of the automatic start-stop device 9 of the present application can float on the liquid surface of the clean water in the heating tube 3, and as the level of the clean water in the heating tube 3 changes, the height of the hollow float 12 will also change accordingly. As the electric heating plate heats the clean water in the heating tube 3, the clean water in the heating tube 3 will gradually evaporate and decrease, and the float will also move downward as the liquid level changes. When the amount of clean water in the heating tube 3 decreases to the level that needs to be replenished, the float will drop to the corresponding position, and the drop of the float will drive the vertical rod 11 to slide down along the sleeve 10, and then the water replenishment metal sensor 15 on the cross rod 13 will also move down synchronously and contact the water replenishment metal sheet 19 on the mounting rod 16. The water replenishment metal sensor 15 contacts the water replenishment metal sheet 19, and the water replenishment metal sensor 15 transmits this information to the controller 2. The controller 2 will control the water replenishment solenoid valve 7 to open, and the clean water entering the water storage tank 8 will be replenished to the heating tube 3 through the water replenishment pipe 6;
[0021] As the clean water in the water tank 8 is added to the heating cylinder 3, the clean water level in the heating cylinder 3 will rise and drive the float to float up. The floating of the float will cause the vertical rod 11 to move up along the sleeve 10, and then the cross bar 13 will also move up synchronously until the water-stop metal sensor 14 on the cross bar 13 contacts the water-stop metal sheet 18 on the mounting rod 16. At this time, the clean water in the heating cylinder 3 is supplemented to a sufficient amount, and the water-stop metal sensor 14 contacts the water-stop metal sheet 18, then the water-stop metal sensor 14 transmits this information to the controller 2, and the controller 2 controls the water supply solenoid valve 7 to close.
[0022] Embodiment 3, based on embodiment 2, further, a through hole 17 is arranged on the cross bar 13 to vertically slide with the mounting rod 16, which will limit the cross bar 13 and the vertical pipe to move only vertically, but not to rotate, ensuring the corresponding relationship between the water-stop metal sensor 14 and the water-stop metal sheet 18 and other components. A breathing valve 20 is provided on the heating cylinder 3 to prevent the heating cylinder 3 from causing excessive internal pressure due to temperature rise.
Claims
1. A crude benzene lean oil flow pipe anti-blocking device, comprising a flow pipe body (1) and a controller (2), characterized in that: The outer wall of the flow taking pipe body (1) is coaxially fixedly connected with a heating cylinder (3); the upper end of the heating cylinder (3) is embedded with two electric connectors (4) arranged symmetrically about its axis; the lower end of each of the electric connectors (4) is electrically connected to an electric heating rod (5); the upper side of the heating cylinder (3) is fixedly connected to the outlet end of a water supply pipe (6); the water supply pipe (6) is provided with a water supply solenoid valve (7) electrically connected to a controller (2); the inlet end of the water supply pipe (6) is fixedly connected to the outlet end of a water storage tank (8); the heating cylinder (3) is provided with an automatic start-stop device (9) used in conjunction with the controller (2); the automatic start-stop device (9) cooperates with the controller (2) to control the start and stop of the water supply solenoid valve (7); the controller (2) is fixedly installed on the outer wall of the water storage tank (8).
2. The crude benzene lean oil flow pipe anti-blocking device according to claim 1, characterized in that: The automatic start-stop device (9) comprises a sleeve (10) fixedly connected to the upper end of the heating tube (3); the sleeve (10) is coaxially slidably connected to a vertical rod (11); the lower end of the vertical rod (11) is fixedly connected to a hollow floating ball (12); the upper end of the vertical rod (11) is fixedly connected to a cross rod (13); the upper end of the cross rod (13) is fixedly connected to a water-stop metal sensor (14) electrically connected to the controller (2); and the lower end of the cross rod (13) is fixedly connected to a water-stop metal sensor (14) electrically connected to the controller (2). The water replenishment metal sensor (15) is electrically connected to the water replenishment metal sensor (2), the upper end of the heating cylinder (3) is fixedly connected to a mounting rod (16), the cross bar (13) is provided with a through hole (17) vertically slidably connected to the mounting rod (16), the upper side of the mounting rod (16) is fixedly connected to a water stop metal sheet (18) matched with the water stop metal sensor (14), and the lower side of the mounting rod (16) is fixedly connected to a water replenishment metal sheet (19) matched with the water replenishment metal sensor (15).
3. The device for preventing blocking of crude benzene lean oil flow pipe according to claim 1, characterized in that: The upper end of the heating cylinder (3) is fixedly connected to a breathing valve (20).