Large valve rolling displacement device with built-in monitoring system

Abstract

The utility model discloses a large -scale valve rolling displacement device with monitoring system, for assembling on the valve steel support stand, including gyro wheel transmission assembly, support subassembly, positioning subassembly, support subassembly is welded fixed on the pre -buried bottom plate, and positioning subassembly is welded fixed on the steel support stand of valve, and gyro wheel transmission assembly sets up on the support subassembly and uses the positioning bolt fixed on the positioning subassembly, its characterized in that still including bearing temperature monitoring system, vibration monitoring system, bearing oiling system and valve body displacement monitoring system, bearing temperature monitoring system judges whether the bearing exists the failure condition such as wear and tear heat in the operation process, bearing vibration monitoring system judges whether the bearing exists the failure condition such as vibration overproof in the operation process, and valve body displacement monitoring system grasps the rule of valve body displacement and the medium temperature, pressure, flow change of pipeline transportation.

Description

Technical Field

[0001] This utility model belongs to the technical field of chemical and metallurgical equipment, and is a large valve rolling displacement device with a built-in monitoring system. Background Technology

[0002] In industries such as chemical and metallurgy, the gas and water media in large pipeline systems experience significant temperature variations, causing the pipelines to expand and contract. Therefore, pipe compensators are typically installed at the inlet and outlet pipes of mechanical devices in pipeline systems, such as turbines, steam turbines, and fans, to absorb and accommodate these length changes caused by thermal expansion and contraction. This prevents positional shifts in the mechanical devices during operation, which could compromise their operational accuracy and lead to malfunctions. However, some mechanical devices lack suitable locations for compensators due to space constraints in the horizontal inlet and outlet pipe sections. This results in frequent mechanical device failures during actual production, disrupting the stable and smooth operation of the entire process system.

[0003] Chinese patent CN219889335U, "A Large Valve Displacement Device," effectively guides the thermal expansion and contraction of horizontal pipe sections to the compensator in vertical pipes for suction and release by moving the valve position, thus solving this technical problem. However, it has the following shortcomings during use: First, the bearings are prone to wear and overheating, making the failure cycle unpredictable. Since the weight of the pipeline system, exceeding 100 tons, is borne by the bearings of the valve rolling displacement device, and the operating environment temperature of the bearings is relatively high, the failure of the load-bearing bearings is frequent and unpredictable. Second, the valve displacement distance detected by using a dial indicator is related to the temperature of the medium being transported in the pipeline; the higher the medium temperature, the longer the valve displacement distance. The valve displacement frequency is also related to the fluctuation of the medium temperature; the more frequent the medium temperature fluctuations, the higher the valve displacement frequency. Utility Model Content

[0004] The present invention aims to provide a large valve rolling displacement device with a built-in monitoring system to monitor the operating status of bearings and valves and improve bearing lubrication.

[0005] The technical solution of this utility model: A large valve rolling displacement device with a built-in monitoring system is used to mount on the valve's steel support column. It includes a roller drive assembly, a support assembly, a positioning assembly, and a position monitoring assembly. The support assembly is welded and fixed to a pre-embedded base plate, the positioning assembly is welded and fixed to the valve's steel support column, and the roller drive assembly is mounted on top of the support assembly and fixed to the positioning assembly using positioning bolts. It also includes a bearing temperature monitoring system, a vibration monitoring system, a bearing lubrication system, and a valve body displacement monitoring system. The bearing temperature monitoring system includes a temperature probe and a temperature signal transmission cable. The temperature probe is inserted into a concentric hole drilled in the bottom of the bearing housing and the bearing housing positioning plate, and is fixed to the bearing housing positioning plate through the external thread on the temperature probe's measuring rod. The temperature signal cable is connected to the terminal block in the junction box at the top of the temperature probe and then connected to the PLC in the main control room. The vibration monitoring system comprises a vibration probe and a vibration signal transmission cable. The vibration probe is inserted into a concentric hole in the bottom of the bearing housing and the bearing housing positioning plate, and is fixed to the bearing housing positioning plate by the external thread on the measuring rod of the vibration probe. The vibration signal cable is connected to the terminal block on the top of the vibration probe and connected to the PLC in the main control room. The bearing oiling system includes an oiling nozzle. A beveled hole is drilled and internally threaded on the end face of the bearing housing. The oiling nozzle is inserted into the beveled hole and fixed to the end face of the bearing housing by the external thread of the oiling nozzle. The valve body displacement monitoring assembly includes a displacement monitoring probe and a displacement monitoring probe bracket. The displacement monitoring probe bracket is welded and fixed to a pre-embedded steel base plate. The displacement monitoring probe is assembled on the displacement monitoring probe bracket with the end face of the bearing housing as the detection object. The displacement monitoring probe is connected to the PLC in the main control room via a signal cable.

[0006] The innovations and beneficial effects of this utility model are as follows: Based on existing utility model patents, this utility model improves the monitoring of device operation; extends the device's service life and reduces the failure rate; and provides operational parameter basis for precise control of the entire process system. Specifically, it: 1) Converts the sliding friction of valve movement into rolling friction, which is very labor-saving and can smoothly achieve the purpose of eliminating the impact of thermal expansion and contraction on the normal operation of mechanical devices such as turbines and fans; 2) Eliminates faults through the bearing oiling system and temperature and vibration monitoring system, reduces maintenance costs, improves the performance of this patented product, and enhances product quality; 3) Through valve body displacement monitoring, accurately detects the effect of this patented product, precisely adjusts the temperature, pressure, and flow rate of the process system, improves the level of lean management of the process system, and increases production efficiency. Attached Figure Description

[0007] Figure 1 This is a diagram of the installation structure of a conventional gate valve.

[0008] Figure 2 This is a structural diagram of a slide gate valve equipped with a rolling displacement device that has its own monitoring system.

[0009] Figure 3 This is an enlarged view of the rolling displacement device A with its own monitoring system.

[0010] Figure 4 This is the drawing of the spindle component.

[0011] Figure 5 This is a drawing of a steel roller part.

[0012] Figure 6 This is a drawing of a bearing housing part.

[0013] Figure 7 This is a structural diagram of the bearing housing cover.

[0014] In the diagram: 1. Valve body; 2. Valve inlet and outlet; 3. Steel support column; 4. Column connecting base plate; 5. Embedded steel base plate; 6. Rail pad; 7. Rail; 8. Steel roller; 9. Main shaft; 10. Bearing; 11. Bearing housing; 12. Bearing housing cover; 13. Bearing housing positioning bolt; 14. Bearing housing positioning plate; 15. Rib plate; 16. Bearing housing back plate; 17. Temperature probe; 18. Vibration probe; 19. Oil injector; 20. Displacement monitoring probe bracket; 21. Displacement monitoring probe. Detailed Implementation

[0015] The following description, in conjunction with the accompanying drawings, illustrates the embodiments.

[0016] Figure 1 As shown: In the prior art, a large valve displacement device is used. The valve body 1 of the slide valve is supported by eight steel support columns 3 and stands on a pre-embedded steel base plate 5. The steel support columns 3 are connected by column connecting base plates 4. The column connecting base plates 4 and the pre-embedded steel base plate 5 have a sliding friction motion relationship.

[0017] Figure 2 As shown: A large valve rolling displacement device with a built-in monitoring system, a slide gate valve equipped with rolling displacement device A with a built-in monitoring system, eliminating the need for existing large valve displacement devices. Figure 1 The central column is connected to the base plate 4; the rolling displacement device with its own monitoring system is welded and fixed to the steel support column 3 via the bearing seat back plate 16, and the length of the steel support column 3 is shortened so that it is detached from the pre-embedded steel base plate 5. Therefore, the entire weight of the valve is borne by the steel roller 8, and the steel roller 8 and the steel rail have a rolling friction relationship. Thus, the valve achieves rolling displacement, which greatly reduces friction and axial thrust.

[0018] Figure 3The diagram shows an enlarged view of the rolling displacement device with its own monitoring system. Its basic structure includes four parts: a support assembly, a roller transmission assembly, a positioning assembly, and a valve body displacement monitoring assembly. The support assembly includes a rail pad 6 and a rail 7. The assembly structure is as follows: first, the rail pad 6 is welded to the embedded steel base plate 5; then, the rail 7 is welded to the rail pad 6. The entire support assembly is then fixed to the embedded steel base plate 5. The positioning assembly includes a bearing seat positioning plate 14, a stiffener plate 15, and a bearing seat back plate 16. The assembly structure is as follows: first, the bearing seat back plate 16 is welded to the steel support column 3; then, the bearing seat positioning plate 14 is welded to the bearing seat back plate 16; finally, a stiffener plate 15 is welded between the bearing seat positioning plate 14 and the bearing seat back plate 16 to increase the load-bearing strength, thus fixing the entire positioning assembly to the steel support column 3. The roller drive assembly includes a steel roller 8, a main shaft 9, a bearing 10, a bearing housing 11, a bearing housing cover 12, a bearing housing positioning bolt 13, a bearing housing positioning plate 14, a temperature probe 17, a vibration probe 18, and an oil injection nozzle 19. The assembly structure is as follows: First, the steel roller 8 is assembled onto the main shaft 9. The bearing 10 is assembled at both ends of the main shaft 9. After the bearing 10 is injected with lubricating oil, it is installed into the bearing housing 11 equipped with a lubricating oil injection nozzle 19. The bearing housing cover 12 is then covered, and the connecting bolts between the cover 12 and the bearing housing 11 are tightened. The temperature probe 17 and the vibration probe 18 are inserted into the preset cavity of the bearing housing 11 through the bearing housing positioning plate 14 in the positioning assembly.

[0019] The rolling displacement device A with its own monitoring system is assembled as follows: the support component is welded and fixed on the pre-embedded steel base plate 5; the positioning component is welded and fixed on the valve's steel support column 3; the steel roller 8 in the roller transmission component is placed on the support component's rail 7; the roller transmission component is fixed on the positioning component using bearing seat positioning bolts 13; and the valve body displacement monitoring component is welded and fixed on the pre-embedded steel base plate 5.

[0020] The bearing temperature monitoring system includes a temperature probe 17 and a temperature signal transmission cable. The temperature probe 17 is inserted into the concentric hole at the bottom of the bearing housing 11 and the bearing housing positioning plate 14, and is fixed to the bearing housing positioning plate 14 by the external thread on the temperature probe measuring rod. The temperature signal cable is connected to the terminal block in the junction box at the top of the temperature probe 17 and connected to the PLC in the main control room.

[0021] The vibration monitoring system includes a vibration probe 18 and a vibration signal transmission cable. The vibration probe 18 is inserted into the concentric hole at the bottom of the bearing housing and the bearing housing positioning plate 14, and is fixed to the bearing housing positioning plate 14 by the external thread on the measuring rod of the vibration probe 18. The vibration signal cable is connected to the terminal block at the top of the vibration probe 18 and connected to the PLC in the main control room.

[0022] The bearing lubrication system includes a lubrication nozzle 19. An oblique through hole is drilled and an internal thread is tapped on the end face of the bearing housing. The lubrication nozzle 19 is inserted into the oblique through hole and fixed to the end face of the bearing housing through the external thread of the lubrication nozzle 19.

[0023] The valve body displacement monitoring assembly includes a displacement monitoring probe 21 and a probe bracket 20. The probe bracket 20 is welded and fixed on the pre-embedded steel base plate, and the monitoring probe 21 is assembled on the probe bracket 20 with the bearing seat end face as the detection object.

[0024] The valve body displacement monitoring assembly includes a displacement monitoring probe bracket 20 and a displacement monitoring probe 21. The assembly structure is as follows: the displacement monitoring probe bracket 20 is welded and fixed to the pre-embedded steel base plate 5, and the displacement monitoring probe 21 is assembled on the displacement monitoring probe bracket 20 with the end face of the bearing seat 11 as the detection object. The displacement monitoring probe 21 is connected to the PLC in the main control room via a signal cable.

[0025] Figure 4 ~ Figure 7 This is a structural diagram of the main components.

Claims

1. A large valve rolling displacement device with a built-in monitoring system, used for mounting on a valve steel support column, comprising a roller drive assembly, a support assembly, and a positioning assembly. The support assembly is welded and fixed to a pre-embedded base plate, the positioning assembly is welded and fixed to the valve steel support column, and the roller drive assembly is mounted on the support assembly and fixed to the positioning assembly using positioning bolts; characterized in that: It also includes a bearing temperature monitoring system, a vibration monitoring system, a bearing lubrication system, and a valve body displacement monitoring system. The bearing temperature monitoring system includes a temperature probe and a temperature signal transmission cable. The temperature probe is inserted into a concentric hole drilled in the bottom of the bearing housing and the bearing housing positioning plate, and is fixed to the bearing housing positioning plate via an external thread on the probe's measuring rod. A temperature signal cable is connected to the terminal block in the junction box at the top of the temperature probe and connected to the PLC in the main control room. The vibration monitoring system consists of a vibration probe and a vibration signal transmission cable. The vibration probe is inserted into a concentric hole drilled in the bottom of the bearing housing and the bearing housing positioning plate, and is fixed to the bearing housing positioning plate via an external thread on the probe's measuring rod. The external thread fixes the vibration probe to the bearing housing positioning plate, and the vibration signal cable is connected to the terminal block on the top of the vibration probe and connected to the PLC in the main control room. The bearing oil injection system includes an oil injection nozzle. A slanted through hole is drilled on the end face of the bearing housing and an internal thread is tapped. The oil injection nozzle is inserted into the slanted through hole and fixed to the end face of the bearing housing through the external thread of the oil injection nozzle. The valve body displacement monitoring system includes a displacement monitoring probe and a displacement monitoring probe bracket. The displacement monitoring probe bracket is welded and fixed to the pre-embedded steel base plate. The displacement monitoring probe is assembled on the displacement monitoring probe bracket with the end face of the bearing housing as the detection object. The displacement monitoring probe is connected to the PLC in the main control room through a signal cable.

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