Hydrogenation catalyst flame retardant conveying device

Abstract

The utility model discloses a hydrogenation catalyst flame retardant conveying device, which belongs to the technical field of petrochemical engineering and comprises a reactor, a liquid storage tank is fixedly connected to one side of the outside of the reactor, and an infusion pump is fixedly mounted at the top of the liquid storage tank. The output end of the infusion pump is fixedly connected with a connecting pipe, a flow sensor is fixedly mounted on the connecting pipe, the end part of the connecting pipe is fixedly connected with an L-shaped rotating joint, the other end of the L-shaped rotating joint is communicated with a main pipe, the main pipe is rotatably arranged in the reactor, and the outer part of the main pipe is uniformly and fixedly connected with a plurality of branch pipes; the flame retardant can be accurately added into the reactor according to a preset proportion, and the flame retardant is uniformly sprayed into the reactor through rotation of the main pipe and the branch pipes, so that the flame retardant is uniformly mixed with materials in the reactor. When the pressure in the reactor exceeds a set range, a depressurization processing program can be started to ensure that the system pressure is stable.

Description

Technical Field

[0001] This utility model relates to the field of petrochemical technology, and more specifically, to a device for conveying flame retardant for hydrogenation catalysts. Background Technology

[0002] Hydrotreating is a widely used process in petroleum refining to remove impurities from crude oil or intermediate products and to convert heavy oil products into lighter, cleaner ones through catalytic reactions. Although hydrotreating can significantly improve oil quality and reduce environmental pollution, potential safety hazards remain in practical operations, particularly in equipment and pipeline systems involving high-temperature and high-pressure conditions. To enhance production safety, many industrial facilities employ flame retardants to reduce the risk of fire and explosion.

[0003] Traditional methods of adding flame retardants typically involve manual spraying or intermittent injection, which makes it difficult to ensure uniform distribution and precise control of the flame retardant. This can lead to localized excessively high or low concentrations, affecting the flame retardant effect and increasing the workload of operators. Pressure fluctuations within the reactor during flame retardant delivery and hydrogenation processes can cause equipment damage or safety accidents. Therefore, this invention proposes a flame retardant delivery device for hydrogenation catalysts to address the shortcomings of existing technologies. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a flame retardant delivery device for hydrogenation catalysts. This device can precisely add the flame retardant to the reactor according to a predetermined ratio. The flame retardant is evenly sprayed into the reactor through the rotation of the main pipe and branch pipes, ensuring uniform mixing between the flame retardant and the materials in the reactor. When the pressure inside the reactor exceeds the set range, a pressure reduction procedure can be initiated to ensure stable system pressure.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A hydrogenation catalyst flame retardant delivery device includes a reactor. A storage tank is fixedly connected to one side of the reactor. A pump is fixedly installed on the top of the storage tank. A delivery pipe is fixedly connected to the output end of the pump. A flow sensor is fixedly installed on the delivery pipe. An L-shaped rotary joint is fixedly connected to one end of the delivery pipe. The other end of the L-shaped rotary joint is connected to a main pipe. The main pipe is rotatably disposed inside the reactor. Multiple branch pipes are uniformly fixedly connected to the outside of the main pipe. Multiple nozzles are uniformly fixedly connected to the bottom of the branch pipes. A motor is fixedly installed at the bottom of the reactor. The output end of the motor is fixedly connected to the main pipe. A main pipe is fixedly connected to the top of the reactor. A pressure detection component is provided inside the main pipe. A controller is fixedly installed outside the reactor.

[0008] Furthermore, two side rods are symmetrically fixedly connected to the main pipe, and a side scraper is fixedly connected to one side of both side rods. The side scraper slides in contact with the inner wall of the reactor.

[0009] Furthermore, a lower scraper is fixedly connected to the lower outer side of the main pipe, and the lower scraper slides in contact with the inner wall of the reactor.

[0010] Furthermore, the pressure detection assembly includes a push rod slidably disposed within the detection cylinder. One end of the push rod extends through the reactor and into the reactor interior, while the other end of the push rod is fixedly connected to a piston. The piston is slidably disposed within the detection cylinder, and a spring is fixedly connected between the piston and the inner wall of the detection cylinder. The spring is sleeved outside the push rod, and a pressure sensor is fixedly installed on the top of the inner wall of the detection cylinder.

[0011] Furthermore, the reactor is equipped with a pressure reducing component at the top, which includes a connecting pipe fixedly connected to the reactor, a solenoid valve installed on the connecting pipe, a filter cylinder fixedly connected to the top of the connecting pipe, a discharge pipe fixedly connected to the top of the filter cylinder, and multiple activated carbon layers uniformly installed inside the filter cylinder.

[0012] Furthermore, a filter screen is installed inside the connecting pipe, and the filter screen is located below the solenoid valve. Beneficial effects

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] (1) This scheme uses a liquid pump and a flow sensor to monitor and adjust the flow rate of the flame retardant in real time, ensuring that it enters the reactor in a predetermined proportion. The motor drives the main pipe to rotate, which in turn rotates the branch pipes and the nozzles at the bottom, allowing the flame retardant to be evenly sprayed to various locations within the reactor. This design not only improves the accuracy of flame retardant addition but also ensures thorough mixing of the flame retardant with the materials, thereby enhancing the safety and efficiency of the hydrogenation process.

[0015] (2) In this design, the push rod moves with the pressure changes inside the reactor, causing the piston to slide inside the detection cylinder. When the pressure exceeds the set range, the pressure sensor transmits the data to the controller, which then opens the solenoid valve and initiates the pressure reduction process to ensure stable system pressure. The waste gas inside the reactor is safely discharged through the discharge pipe after undergoing multi-stage purification treatment through filters, activated carbon layers, etc. This design significantly enhances the safety and environmental performance of the device and reduces its impact on the environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a hydrogenation catalyst flame retardant delivery device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the reactor in this utility model;

[0018] Figure 3 In this utility model Figure 2 Enlarged diagram of A in the middle;

[0019] Figure 4 This is a schematic diagram of the pressure detection component in this utility model.

[0020] Explanation of the labels in the diagram:

[0021] 1. Reactor; 11. Controller; 2. Storage tank; 31. Pump; 32. Delivery pipe; 33. L-shaped rotary joint; 34. Main pipe; 341. Side rod; 342. Side scraper; 343. Lower scraper; 35. Branch pipe; 36. Nozzle; 37. Motor; 38. Flow sensor; 4. Detection cylinder; 41. Push rod; 42. Piston; 43. Pressure sensor; 44. Spring; 51. Connecting pipe; 52. Solenoid valve; 53. Filter cylinder; 54. Discharge pipe; 55. Activated carbon layer; 56. Filter screen. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0025] like Figures 1 to 2 As shown, this utility model embodiment provides a hydrogenation catalyst flame retardant delivery device, including a reactor 1, a storage tank 2 fixedly connected to one side of the reactor 1, a pump 31 fixedly installed on the top of the storage tank 2, a delivery pipe 32 fixedly connected to the output end of the pump 31, a flow sensor 38 fixedly installed on the delivery pipe 32, an L-shaped rotary joint 33 fixedly connected to the end of the delivery pipe 32, and a main pipe 34 connected to the other end of the L-shaped rotary joint 33. The main pipe 34 is rotatably installed inside the reactor 1, a plurality of branch pipes 35 are evenly fixedly connected to the outside of the main pipe 34, a plurality of nozzles 36 are evenly fixedly connected to the bottom of the branch pipes 35, a motor 37 is fixedly installed at the bottom of the reactor 1, the output end of the motor 37 is fixedly connected to the main pipe 34, the main pipe 34 is fixedly connected to the top of the reactor 1, a pressure detection component is provided inside the main pipe 34, and a controller 11 is fixedly installed outside the reactor 1.

[0026] Specifically, two side rods 341 are symmetrically fixedly connected to the main pipe 34, and a side scraper 342 is fixedly connected to one side of both side rods 341. The side scraper 342 slides in contact with the inner wall of the reactor 1. A lower scraper 343 is fixedly connected to the lower outer side of the main pipe 34, and the lower scraper 343 slides in contact with the inner wall of the reactor 1.

[0027] Next, the controller 11 is turned on, and the liquid pump 31 is started to draw flame retardant from the storage tank 2 and deliver it to the main pipe 34 through the delivery pipe 32 and L-shaped rotary joint 33. The flow sensor 38 monitors the flow rate in real time to ensure that the flame retardant enters the reactor 1 in a predetermined ratio. The motor 37 drives the main pipe 34 to rotate, which in turn drives the branch pipes 35 and the bottom nozzles 36 to rotate together. The flame retardant is evenly sprayed into various positions in the reactor 1 through the nozzles 36 to ensure that the flame retardant is fully mixed with the material. During the rotation of the main pipe 34, the side scraper 342 and the bottom scraper 343 can effectively scrape off the material on the inner wall of the reactor 1, which facilitates the mixing of the material on the inner wall of the reactor 1 with the flame retardant. Example 2

[0028] Please see Figures 2 to 4 This embodiment provides a technical solution based on embodiment one: the pressure detection assembly includes a push rod 41 slidably disposed in the detection cylinder 4, one end of the push rod 41 extends through the reactor 1 into the reactor 1, and the other end of the push rod 41 is fixedly connected to the piston 42. The piston 42 is slidably disposed in the detection cylinder 4, and a spring 44 is fixedly connected between the piston 42 and the inner wall of the detection cylinder 4. The spring 44 is sleeved on the outside of the push rod 41, and a pressure sensor 43 is fixedly installed on the top of the inner wall of the detection cylinder 4.

[0029] Specifically, a pressure reducing component is provided at the top of the reactor 1. The pressure reducing component includes a connecting pipe 51 fixedly connected to the reactor 1, a solenoid valve 52 installed on the connecting pipe 51, a filter cylinder 53 fixedly connected to the top of the connecting pipe 51, a discharge pipe 54 fixedly connected to the top of the filter cylinder 53, and multiple activated carbon layers 55 uniformly installed inside the filter cylinder 53. A filter screen 56 is installed inside the connecting pipe 51 and is located below the solenoid valve 52.

[0030] Furthermore, adding flame retardant to reactor 1 causes pressure fluctuations inside reactor 1. Additionally, the reaction itself may produce gas during hydrogenation, which also affects the gas pressure inside reactor 1. During this process, push rod 41 moves with the pressure changes inside reactor 1, causing piston 42 to slide within detection cylinder 4. When piston 42 contacts pressure sensor 43 and the detected pressure value exceeds the set range, pressure sensor 43 transmits data to controller 11. Upon receiving the signal, controller 11 automatically opens solenoid valve 53, initiating a pressure reduction process to ensure stable system pressure. When the pressure inside reactor 1 decreases, spring 44 helps piston 42 return to its original position. During this process, gas inside reactor 1 enters filter cylinder 52 through connecting pipe 51. First, the gas undergoes preliminary filtration through filter screen 56 to remove large particulate impurities. Subsequently, the exhaust gas continues to pass through activated carbon layer 55, adsorbing harmful gases and further purifying the exhaust gas. After multi-stage purification, the exhaust gas is finally safely discharged through emission pipe 54, ensuring that the emitted gas meets environmental standards.

[0031] Working Principle: During operation, the controller 11 is turned on, and the pump 31 is started to extract the flame retardant from the storage tank 2. The extracted flame retardant is then transported to the main pipe 34 via the delivery pipe 32 and L-shaped rotary joint 33. The flow sensor 38 monitors the flow rate in real time to ensure the flame retardant enters the reactor 1 in a predetermined proportion. The motor 37 drives the main pipe 34 to rotate, causing the branch pipes 35 and the bottom nozzles 36 to rotate as well. The flame retardant is evenly sprayed into various locations within the reactor 1 through the nozzles 36, ensuring thorough mixing between the flame retardant and the material. During the rotation of the main pipe 34, the side scrapers 342 and the bottom scraper 343 scrape off material from the inner wall of the reactor 1, facilitating mixing between the material and the flame retardant. The push rod 41 moves according to the pressure changes inside the reactor 1, causing the piston 42 to slide within the detection cylinder 4. When the piston 42 contacts the pressure sensor 43 and the detected pressure value exceeds the set range, the pressure sensor 43 transmits the data to the controller 11. Upon receiving the signal, controller 11 automatically opens solenoid valve 53, initiating a pressure reduction process to ensure stable system pressure. During this process, gas from reactor 1 enters filter cartridge 52 through connecting pipe 51. First, the gas undergoes preliminary filtration through filter screen 56 to remove large particulate impurities. Subsequently, the exhaust gas continues to pass through activated carbon layer 55, where harmful gases are adsorbed, further purifying the exhaust gas. After multi-stage purification, the exhaust gas is finally safely discharged through emission pipe 54, ensuring that the emitted gas meets environmental protection standards.

[0032] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A device for conveying a flame retardant to a hydrogenation catalyst, comprising a reactor (1), characterized in that: A storage tank (2) is fixedly connected to one side of the reactor (1). A pump (31) is fixedly installed on the top of the storage tank (2). A delivery pipe (32) is fixedly connected to the output end of the pump (31). A flow sensor (38) is fixedly installed on the delivery pipe (32). An L-shaped rotary joint (33) is fixedly connected to the end of the delivery pipe (32). The other end of the L-shaped rotary joint (33) is connected to a main pipe (34). The main pipe (34) is rotatably installed inside the reactor (1). Multiple branch pipes (35) are evenly fixedly connected to the outside of the main pipe (34). Multiple nozzles (36) are evenly fixedly connected to the bottom of the branch pipes (35). A motor (37) is fixedly installed at the bottom of the reactor (1). The output end of the motor (37) is fixedly connected to the main pipe (34). The main pipe (34) is fixedly connected to the top of the reactor (1). A pressure detection component is provided inside the main pipe (34). A controller (11) is fixedly installed outside the reactor (1).

2. The flame retardant delivery device for a hydrogenation catalyst according to claim 1, characterized in that: Two side rods (341) are symmetrically fixedly connected to the main pipe (34), and a side scraper (342) is fixedly connected to one side of both side rods (341). The side scraper (342) slides in contact with the inner wall of the reactor (1).

3. The flame retardant delivery device for a hydrogenation catalyst according to claim 2, characterized in that: A lower scraper (343) is fixedly connected to the lower outer side of the main tube (34), and the lower scraper (343) slides in contact with the inner wall of the reactor (1).

4. The flame retardant delivery device for a hydrogenation catalyst according to claim 1, characterized in that: The pressure detection assembly includes a push rod (41) that is slidably disposed inside the detection cylinder (4). One end of the push rod (41) extends through the reactor (1) into the reactor (1), and the other end of the push rod (41) is fixedly connected to a piston (42). The piston (42) is slidably disposed inside the detection cylinder (4). A spring (44) is fixedly connected between the piston (42) and the inner wall of the detection cylinder (4). The spring (44) is sleeved on the outside of the push rod (41). A pressure sensor (43) is fixedly installed on the top of the inner wall of the detection cylinder (4).

5. The flame retardant delivery device for a hydrogenation catalyst according to claim 1, characterized in that: The reactor (1) is provided with a pressure reducing component at the top. The pressure reducing component includes a connecting pipe (51) fixedly connected to the reactor (1). A solenoid valve (52) is installed on the connecting pipe (51). A filter cylinder (53) is fixedly connected to the top of the connecting pipe (51). A discharge pipe (54) is fixedly connected to the top of the filter cylinder (53). Multiple activated carbon layers (55) are uniformly installed inside the filter cylinder (53).

6. The flame retardant delivery device for a hydrogenation catalyst according to claim 5, characterized in that: A filter screen (56) is installed inside the connecting pipe (51), and the filter screen (56) is located below the solenoid valve (52).

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