A hydraulic locking device for the manhole cover of a reactor

Abstract

This utility model discloses a hydraulic locking device for a reactor manhole cover, relating to the field of reactor technology. It includes a hydraulic oil tank and a gear pump mounted on the top surface of the hydraulic oil tank. A flow divider assembly is connected to the output end of the gear pump. Three sets of directional valves are mounted at one end of the flow divider assembly. This utility model, through the arrangement of oil pipes, an opening / closing assembly, and a pressure sensor, allows the gear pump to be turned on, supplying hydraulic oil from the hydraulic oil tank to the hydraulic cylinder via the oil pipes. This causes the hydraulic cylinder to drive a sliding ball upwards, which in turn drives the opening / closing block to rotate synchronously, closing the manhole cover with the manhole seat. After closing, the control valve on the oil pipe is closed, sealing the hydraulic circuit. The manhole cover only consumes energy during opening and closing, resulting in greater energy efficiency. The pressure sensor monitors the closing pressure of the manhole cover; when the closing pressure is abnormal, an alarm is triggered to alert personnel of potential locking failure, facilitating timely handling.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, specifically to a hydraulic locking device for a reaction vessel manhole cover. Background Technology

[0002] A reaction vessel is generally a container for physical or chemical reactions. The top of the reaction vessel usually has a manhole, which is a reserved opening for people to enter the reaction vessel for cleaning, maintenance, and installation. Liquid and solid materials can be added through the manhole, and samples can also be taken to observe the color changes of the materials inside the vessel and the chemical reaction.

[0003] The utility model patent with announcement number CN214650804U discloses a hydraulic automatic opening, closing and locking device for a reactor manhole cover. Although the structure of this utility model is relatively stable and the action is precise and reliable, it can ensure the mechanical automation of the opening, closing and locking of the manhole, ensure safety and sealing under working conditions, reduce manual operation, improve production safety and quality, and has broad application prospects.

[0004] However, this hydraulic automatic opening and closing locking reactor manhole cover device requires a constant energy supply to the hydraulic mechanism during opening, closing and locking, resulting in high energy consumption. Furthermore, each reactor requires a corresponding locking device, leading to high costs. Utility Model Content

[0005] This invention provides a hydraulic locking device for the manhole cover of a reactor, which solves the problems mentioned in the background art, such as the need to maintain the energy supply of the hydraulic mechanism during opening, closing and locking, resulting in high energy consumption, and the need to configure corresponding locking equipment for a set of reactors, resulting in high cost.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic locking device for a reactor manhole cover, comprising a hydraulic oil tank, and further comprising: a gear pump disposed on the top surface of the hydraulic oil tank, wherein a flow divider is disposed through the output end of the gear pump; three sets of directional valves disposed at one end of the flow divider, wherein a hydraulic cylinder is disposed through one end of the directional valve, and oil pipes are fixedly installed on the top and bottom surfaces of the hydraulic cylinder; and an opening and closing assembly disposed at the output end of the hydraulic cylinder, wherein a manhole cover is fixedly disposed on one side of the opening and closing assembly, a manhole seat is rotatably disposed on one side of the bottom surface of the manhole cover, and a pressure sensor is fixedly installed on one side of the top surface of the manhole seat.

[0007] As a preferred embodiment of this utility model, the diversion assembly includes an oil supply pipe and a diversion pipe. One end of the oil supply pipe is disposed through the output end of the gear pump, and one end of the diversion pipe is connected through the oil supply pipe. The diversion assembly is used to control different hydraulic cylinders respectively.

[0008] As a preferred embodiment of this utility model, the number of the diversion pipes is three groups and they are distributed along the axial direction. The surface of the diversion pipes is fixedly equipped with an opening and closing valve, which controls the opening and closing of the diversion pipes.

[0009] As a preferred embodiment of this utility model, a PLC controller is electrically connected to one side of the pressure sensor, and an alarm is electrically connected to one side of the PLC controller. Both the PLC controller and the alarm are fixedly installed on the outer surface of the manhole seat, and the pressure sensor senses the closing pressure of the manhole cover.

[0010] As a preferred technical solution of this utility model, the opening and closing assembly includes a sliding ball and an opening and closing block. The sliding ball is fixedly disposed at the output end of the hydraulic cylinder. A limit groove is formed inside the opening and closing block. The sliding ball is slidably disposed inside the limit groove. The opening and closing assembly is used to open and close the manhole cover.

[0011] As a preferred embodiment of this utility model, the input end of the gear pump is provided with an oil extraction pipe, one end of which is provided inside the hydraulic oil tank, and the oil extraction pipe is used to extract hydraulic oil.

[0012] As a preferred embodiment of this utility model, a control valve is fixedly installed on the surface of the oil pipe, and both sets of oil pipes are connected to the reversing valve. The control valve controls the opening and closing of the oil pipe.

[0013] As a preferred embodiment of this utility model, there are three sets of manhole seats and manhole covers. A sealing silicone pad is fixedly provided on the top surface of the manhole seat. The sealing silicone pad is used to seal the connection between the manhole seat and the manhole cover.

[0014] Compared with the prior art, this utility model provides a hydraulic locking device for the manhole cover of a reactor, which has the following advantages: This hydraulic locking device for the reactor manhole cover, through the installation of oil lines, opening and closing components, and pressure sensors, activates a gear pump to deliver hydraulic oil from the hydraulic tank to the hydraulic cylinder via the oil lines. This causes the hydraulic cylinder to lift a sliding ball, which in turn rotates the opening and closing block to close the manhole cover with the manhole seat. After closing, the control valve on the oil lines is closed, shutting off the hydraulic circuit. The manhole cover only consumes energy during the opening and closing process, making it more energy-efficient. The pressure sensor monitors the closing pressure of the manhole cover. When the closing pressure is abnormal, an alarm is triggered to alert personnel that the locking mechanism may have failed, facilitating timely handling.

[0015] This hydraulic locking device for reactor manhole covers, through the configuration of a diversion assembly, three sets of manhole cover plates and manhole seats, opens the opening and closing valves on the corresponding diversion pipes when hydraulically locking the manhole cover plates and manhole seats respectively, so that the three sets of hydraulic cylinders perform locking operations respectively. The same hydraulic station can control the manhole covers of multiple reactors, reducing equipment costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the current splitter component structure of this utility model; Figure 3 This is a schematic diagram of the hydraulic cylinder structure of this utility model; Figure 4 This is a schematic diagram of the pressure sensor structure of this utility model; Figure 5 This is a schematic diagram of the opening and closing component structure of this utility model.

[0017] In the diagram: 1. Hydraulic oil tank; 2. Gear pump; 3. Diverter assembly; 301. Oil supply pipe; 302. Diverter pipe; 4. Directional valve; 5. Hydraulic cylinder; 6. Oil circuit pipe; 7. Opening and closing assembly; 701. Sliding ball; 702. Opening and closing block; 8. Manhole cover; 9. Manhole seat; 10. Pressure sensor; 11. Opening and closing valve; 12. Alarm; 13. Suction pipe; 14. Control valve; 15. Sealing silicone gasket. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-5This utility model discloses a hydraulic locking device for manhole covers of reactors, including a hydraulic oil tank 1, and further including: a gear pump 2 disposed on the top surface of the hydraulic oil tank 1, with a flow divider 3 passing through the output end of the gear pump 2; three sets of directional valves 4 disposed on one end of the flow divider 3, with a hydraulic cylinder 5 passing through one end of the directional valve 4, and oil pipes 6 fixedly installed on the top and bottom surfaces of the hydraulic cylinder 5; and an opening and closing assembly 7 disposed on the output end of the hydraulic cylinder 5, with a manhole cover plate 8 fixedly disposed on one side of the opening and closing assembly 7, and a manhole seat 9 rotatably disposed on one side of the bottom surface of the manhole cover plate 8. Through the arrangement of the flow divider 3, the three sets of manhole cover plates 8 and the manhole seat 9, when the manhole cover plate 8 and the manhole seat 9 are hydraulically locked respectively, the opening and closing valves 11 on the corresponding flow divider pipes 302 are opened, so that the three sets of hydraulic cylinders 5 perform locking operations respectively. The same hydraulic station can control the manhole covers of multiple reactors, reducing equipment costs. A pressure sensor 10 is fixedly installed on one side of the top surface of the manhole seat 9. Through the oil pipe 6, the opening and closing assembly 7 and the pressure sensor 10, the gear pump 2 is turned on, and the hydraulic oil in the hydraulic oil tank 1 is delivered to the hydraulic cylinder 5 through the oil pipe 6. This causes the hydraulic cylinder 5 to drive the sliding ball 701 to rise, which drives the opening and closing block 702 to rotate synchronously, so that the manhole cover 8 and the manhole seat 9 are closed. After closing, the control valve 14 on the oil pipe 6 is closed, and the hydraulic circuit is shut off. The manhole cover 8 only consumes energy during the opening and closing moment, which is more energy-efficient. The pressure sensor 10 monitors the closing pressure of the manhole cover 8. When the closing pressure is abnormal, the control alarm 12 will sound an alarm to remind personnel that the locking may have failed, so as to facilitate timely handling.

[0020] Specifically, the diversion assembly 3 includes an oil supply pipe 301 and a diversion pipe 302. One end of the oil supply pipe 301 is connected to the output end of the gear pump 2, and one end of the diversion pipe 302 is connected to the oil supply pipe 301.

[0021] In this embodiment, when hydraulically locking the manhole cover 8 and the manhole seat 9 respectively, the opening and closing valves 11 on the corresponding diversion pipes 302 are opened, and hydraulic oil is delivered to different diversion pipes 302 through the oil supply pipes 301.

[0022] Specifically, there are three sets of diversion pipes 302 distributed along the axial direction, and the surface of the diversion pipes 302 is fixedly equipped with opening and closing valves 11.

[0023] In this embodiment, the on / off valve 11 is used to control the opening and closing of the diversion pipe 302.

[0024] Specifically, a PLC controller is electrically connected to one side of the pressure sensor 10, and an alarm 12 is electrically connected to one side of the PLC controller. Both the PLC controller and the alarm 12 are fixedly installed on the outer surface of the manhole seat 9.

[0025] In this embodiment, the pressure sensor 10 monitors the closing pressure of the manhole cover 8. When the closing pressure is abnormal, the alarm 12 is controlled to sound an alarm, reminding personnel that the locking may have failed, so that timely handling can be carried out.

[0026] Specifically, the opening and closing assembly 7 includes a sliding ball 701 and an opening and closing block 702. The sliding ball 701 is fixedly installed at the output end of the hydraulic cylinder 5. A limit groove is opened inside the opening and closing block 702, and the sliding ball 701 is slidably installed inside the limit groove.

[0027] In this embodiment, the limiting groove facilitates the sliding ball 701 to slide inside it, and the sliding ball 701 will drive the opening and closing block 702 to rotate when it rises and falls.

[0028] Specifically, an oil extraction pipe 13 is provided through the input end of the gear pump 2, and one end of the oil extraction pipe 13 is provided inside the hydraulic oil tank 1.

[0029] In this embodiment, the oil extraction pipe 13 facilitates the gear pump 2 to extract hydraulic oil from the hydraulic oil tank 1.

[0030] Specifically, a control valve 14 is fixedly installed on the surface of the oil pipe 6, and both sets of oil pipes 6 are connected to the reversing valve 4.

[0031] In this embodiment, control valve 14 is used to control the opening and closing of oil line 6.

[0032] Specifically, there are three sets of manhole seats 9 and manhole covers 8, and a sealing silicone pad 15 is fixedly installed on the top surface of the manhole seat 9.

[0033] In this embodiment, the sealing silicone pad 15 is used to seal the connection between the manhole seat 9 and the manhole cover 8.

[0034] The working principle and usage process of this utility model are as follows: First, when hydraulically locking the manhole cover plate 8 and the manhole seat 9 respectively, open the opening and closing valve 11 on the corresponding diversion pipe 302. Then, the gear pump 2 is turned on to extract the hydraulic oil in the hydraulic oil tank 1 and deliver the hydraulic oil to different branch pipes 302 through the oil delivery pipe 301, so that the three sets of hydraulic cylinders 5 perform locking operations respectively. The same hydraulic station can control the manhole covers of multiple reactors, reducing equipment costs. Afterwards, hydraulic oil is delivered to hydraulic cylinder 5 through oil pipe 6, causing hydraulic cylinder 5 to drive sliding ball 701 to rise, which drives opening and closing block 702 to rotate synchronously, causing manhole cover 8 and manhole seat 9 to close. After closing, control valve 14 on oil pipe 6 is closed, sealing the hydraulic circuit. Manhole cover 8 only consumes energy at the moment of opening and closing, making it more energy-efficient. Subsequently, the pressure sensor 10 monitors the closing pressure of the manhole cover 8. When the closing pressure is abnormal, the control alarm 12 will sound an alarm to remind personnel that the locking may have failed, so that timely handling can be carried out.

[0035] In summary, the hydraulic locking device for the reactor manhole cover, when hydraulically locking the manhole cover 8 and manhole seat 9 respectively, opens the opening and closing valve 11 on the corresponding diversion pipe 302, turns on the gear pump 2, draws out the hydraulic oil in the hydraulic oil tank 1, and delivers the hydraulic oil to different diversion pipes 302 through the oil supply pipe 301, so that the three sets of hydraulic cylinders 5 perform locking operations respectively. The hydraulic oil is delivered to the hydraulic cylinder 5 through the oil circuit pipe 6, so that the hydraulic cylinder 5 drives the sliding ball 701 to rise, drives the opening and closing block 702 to rotate synchronously, so that the manhole cover 8 and manhole seat 9 are closed. After closing, the control valve 14 on the oil circuit pipe 6 is closed, the hydraulic circuit is shut off, and the pressure sensor 10 monitors the closing pressure of the manhole cover 8. When the closing pressure is abnormal, the control alarm 12 sounds an alarm.

[0036] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] 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 hydraulic locking device for a manhole cover of a reaction kettle, comprising a hydraulic oil tank (1), characterized in that, Also includes: A gear pump (2) is installed on the top surface of the hydraulic oil tank (1), and a flow divider assembly (3) is provided through the output end of the gear pump (2); Three sets of reversing valves (4) are set at one end of the diversion assembly (3). A hydraulic cylinder (5) is provided through one end of the reversing valve (4). Oil pipes (6) are fixedly installed on the top and bottom of the surface of the hydraulic cylinder (5). An opening and closing assembly (7) is provided at the output end of the hydraulic cylinder (5). A manhole cover plate (8) is fixedly provided on one side of the opening and closing assembly (7). A manhole seat (9) is rotatably provided on one side of the bottom surface of the manhole cover plate (8). A pressure sensor (10) is fixedly installed on one side of the top surface of the manhole seat (9).

2. The hydraulic locking device for manhole cover of a reaction kettle according to claim 1, characterized in that: The diversion assembly (3) includes an oil supply pipe (301) and a diversion pipe (302). One end of the oil supply pipe (301) is connected to the output end of the gear pump (2), and one end of the diversion pipe (302) is connected to the oil supply pipe (301).

3. The hydraulic locking device for manhole cover of a reactor according to claim 2, characterized in that: The number of the diversion pipes (302) is three sets and they are distributed along the axial direction. The surface of the diversion pipes (302) is fixedly equipped with opening and closing valves (11).

4. The hydraulic locking device for manhole cover of reaction vessel according to claim 1, characterized in that: The pressure sensor (10) is electrically connected to a PLC controller on one side, and an alarm (12) is electrically connected to one side of the PLC controller. Both the PLC controller and the alarm (12) are fixedly installed on the outer surface of the manhole seat (9).

5. The hydraulic locking device for manhole cover of reaction vessel according to claim 1, characterized in that: The opening and closing assembly (7) includes a sliding ball (701) and an opening and closing block (702). The sliding ball (701) is fixedly disposed at the output end of the hydraulic cylinder (5). A limiting groove is formed inside the opening and closing block (702), and the sliding ball (701) is slidably disposed inside the limiting groove.

6. The hydraulic locking device for manhole cover of reaction vessel according to claim 1, characterized in that: The input end of the gear pump (2) is provided with an oil extraction pipe (13), and one end of the oil extraction pipe (13) is provided inside the hydraulic oil tank (1).

7. The hydraulic locking device for manhole cover of reaction vessel according to claim 1, characterized in that: The oil pipe (6) is fixedly installed with a control valve (14), and both sets of oil pipes (6) are connected to the reversing valve (4).

8. The hydraulic locking device for manhole cover of reaction vessel according to claim 1, characterized in that: The number of manhole seats (9) and manhole covers (8) are three sets each, and a sealing silicone pad (15) is fixedly installed on the top surface of the manhole seat (9).

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