A protection system for double-layer hydraulic hoses

Abstract

This utility model discloses a protection system for a double-layer hydraulic hose. A gas holder assembly is located inside a water tank, and the gas holder assembly is slidably connected to the water tank, which is filled with water. A roller assembly is fixedly connected to the outside of the water tank. A fixing frame assembly is fixedly connected to the water tank. The double-layer hydraulic hose passes through the roller assembly and is fixedly connected to the top corner of the gas holder assembly. The double-layer hydraulic hose is filled with liquid. A pressure sensor is located at the bottom of the double-layer hydraulic hose and is fixedly connected to the fixing frame assembly. This problem is solved by adding a pressure-guiding hose pulley auxiliary device. Two sets of pulley devices are installed at the upper and lower parts of the frame, respectively. The double-layer hydraulic hose is clamped between the pulleys. When the double-layer hydraulic hose moves up and down, the pulleys also rotate. Utilizing the principle that rolling friction is less than sliding friction, the friction of the pressure-guiding hose during its up and down movement is greatly reduced, thus reducing the risk of wear and leakage of the double-layer hydraulic hose.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic pressure cabinet measurement technology, specifically a protection system for a double-layer hydraulic hose. Background Technology

[0002] The liquid level measuring instrument in a coal chemical gas holder is a crucial interlocking instrument. Traditionally, a steel support structure is installed outside the water tank, with a double-layer hydraulic hose in contact with this support. Because the primary gas holder moves up and down continuously with pressure changes, the double-layer hydraulic hose also moves accordingly. Friction occurs between the double-layer hydraulic hose and the external steel support structure, leading to damage to the outer sheath of the hose and leakage of the filling fluid. This causes the hydraulic indicator to reach its maximum reading, shortening the lifespan of both the double-layer hydraulic hose and the hydraulic indicator. This triggers the control system to close the gas holder inlet shut-off valve and open the vent valve. The prolonged vent valve opening time can cause deformation of the gas holder, posing a significant safety hazard to the long-term stable operation and safe production of the coal chemical gas holder liquid level measuring instrument. Utility Model Content

[0003] The purpose of this invention is to provide a protection system for a double-layer hydraulic hose. By utilizing the principle that the friction of the rolling device is less than that of the sliding friction, the friction of the double-layer hydraulic hose during its up-and-down movement is greatly reduced. This avoids leakage of the filling fluid due to damage to the outer skin of the double-layer hydraulic hose caused by sliding friction between the double-layer hydraulic hose and the external steel structure support of the water tank. It also extends the lifespan of the double-layer hydraulic hose and the hydraulic measuring instrument, and solves the problem of significant safety hazards in the long-term stable operation and safe production of the liquid level measuring instrument in the coal chemical gas tank.

[0004] The present invention is implemented by the following technical solution: a protection system for a double-layer hydraulic hose, comprising: a gas tank level measuring device, a roller assembly, a double-layer hydraulic hose, and a hydraulic indicator; The gas holder liquid level measuring device includes a gas holder assembly, a water tank, and a fixing frame assembly. The gas holder assembly is located inside the water tank and is slidably connected to the water tank, which is filled with water. A roller assembly is fixedly connected to the outside of the water tank. The fixing frame assembly is fixedly connected to the water tank. A double-layer hydraulic hose passes through the roller assembly and is fixedly connected to the top corner of the gas holder assembly. The double-layer hydraulic hose is filled with liquid. A hydraulic gauge is located at the bottom of the double-layer hydraulic hose and is fixedly connected to the fixing frame assembly.

[0005] Furthermore, a first guide rail is provided on the side of the water tank near the gas holder assembly, and a first slider is provided on the first guide rail. The gas holder assembly is fixedly connected to the first slider. The fixing frame assembly includes a first roller fixing frame, a second roller fixing frame, and a hydraulic measuring instrument bracket. The first roller fixing frame and the hydraulic measuring instrument bracket are fixedly connected to the water tank, the second roller fixing frame is fixedly connected to the hydraulic measuring instrument bracket, and the hydraulic measuring instrument is fixedly connected to the hydraulic measuring instrument bracket.

[0006] Furthermore, the roller assembly includes a first roller and a second roller; the first roller is embedded in a first roller holder, and the second roller is embedded in a second roller holder.

[0007] Furthermore, the first roller includes a first main bearing, a first auxiliary bearing, and a first frame; the second roller includes a second main bearing, a second auxiliary bearing, and a second frame, with both ends of the first main bearing and the first auxiliary bearing rotatably connected to the first frame; the connecting portion of the first frame and the connecting portion of the second frame are both semi-circular grooves, the first main bearing is located between the connecting portion of the first frame and the first auxiliary bearing, and the connecting portion of the first frame is embeddedly connected to the first roller fixing frame; both ends of the second main bearing and the second auxiliary bearing are rotatably connected to the second frame, the second main bearing is located between the connecting portion of the second frame and the second auxiliary bearing, and the connecting portion of the second frame is embeddedly connected to the second roller fixing frame.

[0008] Furthermore, the gas holder assembly includes a first gas holder, a second gas holder, and a gas holder bell; the first gas holder and the second gas holder are slidably connected, and the gas holder bell is fixedly connected to the first gas holder; the second gas holder is fixedly connected to the water tank, a second guide rail is provided inside the second gas holder, a second slider is provided on the second guide rail, the first gas holder is fixedly connected to the second slider, a first air inlet and a first air outlet are provided on one side of the second gas holder, and a second air inlet and a second air outlet are provided on one side of the water tank; an air inlet pipe passes through the second air inlet and connects to the first air inlet, and an air outlet pipe passes through the second air outlet and connects to the first air outlet.

[0009] Furthermore, the diameters of the first main bearing and the second main bearing are greater than 60cm and less than or equal to 70cm; the dimensions of the first main bearing and the second main bearing along the first direction are greater than or equal to 220cm and less than or equal to 240cm; the diameters of the first auxiliary bearing and the second auxiliary bearing are greater than or equal to 24cm and less than or equal to 36cm; and the dimensions of the first auxiliary bearing and the second auxiliary bearing along the first direction are equal to the dimensions of the first main bearing along the first direction. Wherein, the first direction is the direction perpendicular to the first main bearing and the first frame connection portion.

[0010] Furthermore, the first roller fixing bracket is located at 1 / 3 to 2 / 3 of the dimension of the water tank along the second direction; the hydraulic measuring instrument bracket is located at 2 / 3 to 1 of the dimension of the water tank along the second direction; wherein, the second direction is the direction from the first gas holder to the second gas holder.

[0011] Advantages of this utility model: In this invention, a double-layer hydraulic hose is sandwiched between pulleys at the upper and lower parts of the frame via a first roller and a second roller. As the double-layer hydraulic hose moves up and down, the pulleys also rotate. Utilizing the principle that rolling friction is less than sliding friction, the friction force during the up-and-down movement of the double-layer hydraulic hose is greatly reduced, thus reducing friction between the double-layer hydraulic hose and the steel structure support. Furthermore, the first main bearing, first auxiliary bearing, second main bearing, and second auxiliary bearing are all made of flexible PTFE or nylon, further minimizing friction between these bearings and the double-layer hydraulic hose. This prevents leakage of the filling fluid due to slip friction between the double-layer hydraulic hose and the external steel structure support of the water tank, extending the lifespan of the double-layer hydraulic hose and the hydraulic indicator. This solves the significant safety hazards associated with the long-term stable operation and safe production of the liquid level measuring instrument in the coal chemical gas holder. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a double-layer hydraulic hose protection system provided by this utility model; Figure 2 yes Figure 1 Schematic diagram of the middle roller device; Figure 3 yes Figure 1 A schematic diagram of the structure of the first guide rail and the first slider in the middle; 1. Gas tank level measuring device; 2. Roller assembly; 3. Double-layer hydraulic hose; 4. Hydraulic measuring instrument; 5. First guide rail; 6. First slider; 7. Second guide rail; 8. Second slider; 9. First air inlet; 10. Second air inlet; 11. First air outlet; 12. Fixing frame assembly; 13. Second air outlet; 20. First roller; 21. Second roller; 101. First gas tank; 102. Second gas tank; 103. Gas tank bell cover; 120. First roller fixing frame; 121. Second roller fixing frame; 122. Hydraulic measuring instrument bracket; 201. First main bearing; 202. First auxiliary bearing; 203. First frame. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0015] Example Figure 1 This is a schematic diagram of the structure of a double-layer hydraulic hose protection system provided by this utility model; Figure 2 yes Figure 1 See the structural schematic diagram of the middle roller device. Figures 1-2 The protection system of the double-layer hydraulic hose includes: a gas tank level measuring device 1, a roller assembly 2, a double-layer hydraulic hose 3, and a hydraulic gauge 4; the gas tank level measuring device 1 includes a gas tank assembly 10, a water tank 11, and a fixing frame assembly 12. The gas tank assembly 10 is located inside the water tank 11 and is slidably connected to the water tank 11, which is filled with water; the roller assembly 2 is fixedly connected to the outside of the water tank 11; the fixing frame assembly 12 is fixedly connected to the water tank 11; the double-layer hydraulic hose 3 passes through the roller assembly 2 and is fixedly connected to the top corner of the gas tank assembly 10, which is filled with liquid; the hydraulic gauge 4 is located at the bottom of the double-layer hydraulic hose 3 and is fixedly connected to the fixing frame assembly 12.

[0016] The gas holder assembly 10 includes a first gas holder 101, a second gas holder 102, and a gas holder bell 103. The first gas holder 101 and the second gas holder 102 are slidably connected, and the gas holder bell 103 is fixedly connected to the first gas holder 101. The second gas holder 102 is fixedly connected to the water tank 11. A second guide rail 7 is provided on the inner side of the second gas holder 102, and a second slider 8 is provided on the second guide rail 7. The first gas holder 101 is fixedly connected to the second slider 8. A first air inlet 9 and a first air outlet 11 are provided on one side of the second gas holder 102, and a second air inlet 10 and a second air outlet 13 are provided on one side of the water tank 11. An air inlet pipe is connected to the second gas holder 102 through the second air inlet 10 and the first air inlet 9, and an air outlet pipe is connected to the second gas holder 102 through the second air outlet 13 and the first air outlet 11. A first guide rail 5 is provided on the side of the water tank 11 near the gas holder assembly 10, and a first slider 6 is provided on the first guide rail 5. The gas holder assembly 10 is fixedly connected to the first slider 6. The fixing frame assembly 12 includes a first roller fixing frame 120, a second roller fixing frame 121, and a hydraulic measuring instrument bracket 122. The first roller fixing frame 120 and the hydraulic measuring instrument bracket 122 are fixedly connected to the water tank 11, the second roller fixing frame 121 is fixedly connected to the hydraulic measuring instrument bracket 122, and the hydraulic measuring instrument 4 is fixedly connected to the hydraulic measuring instrument bracket 122.

[0017] The roller assembly 2 includes a first roller 20 and a second roller 21. The first roller 20 includes a first main bearing 201, a first auxiliary bearing 202, and a first frame 203. The second roller 21 includes a second main bearing, a second auxiliary bearing, and a second frame. The two ends of the first main bearing 201 and the two ends of the first auxiliary bearing 202 are rotatably connected to the first frame 203, respectively. The connecting part of the first frame 203 and the connecting part of the second frame are both semi-circular grooves. The first main bearing 201 is located between the connecting part of the first frame 203 and the first auxiliary bearing 202. The connecting part of the first frame 203 is embedded in the first roller fixing frame 120. The two ends of the second main bearing and the two ends of the second auxiliary bearing are rotatably connected to the second frame, respectively. The second main bearing is located between the connecting part of the second frame and the second auxiliary bearing. The connecting part of the second frame is embedded in the second roller fixing frame 121.

[0018] The first roller 20 includes a first main bearing 201, a first auxiliary bearing 202, and a first frame 203; the second roller 21 includes a second main bearing, a second auxiliary bearing, and a second frame. Both ends of the first main bearing 201 and the first auxiliary bearing 202 are rotatably connected to the first frame 203. The connecting portion of the first frame 203 and the connecting portion of the second frame are both semi-circular grooves. The first main bearing 201 is located between the connecting portion of the first frame 203 and the first auxiliary bearing 202, and the connecting portion of the first frame 203 is embedded in the first roller fixing frame 120. Both ends of the second main bearing and the second auxiliary bearing are rotatably connected to the second frame. The second main bearing is located between the connecting portion of the second frame and the second auxiliary bearing, and the connecting portion of the second frame is embedded in the second roller fixing frame 121. The first main bearing 201, the first auxiliary bearing 202, the second main bearing, and the second auxiliary bearing are all made of flexible PTFE or nylon. The structures of the first roller 20 and the second roller 21 are identical, as are the structures of the first guide rail 5 and the second guide rail 7.

[0019] In terms of specific working principle, when gas enters the second gas holder 102 from the inlet pipe, the outlet pipe is closed. Under the action of air pressure, the first gas holder 101 moves upward along the first guide rail 5 inside the water tank 11 and the second guide rail 7 inside the second gas holder 102. Since the double-layer hydraulic hose 3 is fixedly connected to the apex of the first gas holder 101, as the first gas holder 101 moves upward, the double-layer hydraulic hose 3 moves along the first main bearing 201 and the second main bearing line. The double-layer hydraulic hose 3 rolls with the first main bearing 201 and the second main bearing, reducing the friction between the double-layer hydraulic hose 3 and the steel structure support. Furthermore, the first main bearing 201, the first auxiliary bearing 202, the second main bearing, and the second auxiliary bearing... The bearings are all made of flexible PTFE or nylon, which reduces the friction between the first main bearing 201, the first auxiliary bearing 202, the second main bearing, the second auxiliary bearing, and the double-layer hydraulic hose 3. The double-layer hydraulic hose 3 is filled with liquid, and the hydraulic gauge 4 measures the hydraulic pressure of the liquid in the double-layer hydraulic hose 3. This allows the gauge to measure the gas pressure inside the gas holder, preventing leakage of the filling liquid due to slip friction between the double-layer hydraulic hose 3 and the external steel structure support of the water tank 11. This extends the lifespan of the double-layer hydraulic hose 3 and the hydraulic gauge 444, and solves the problem of significant safety hazards in the long-term stable operation and safe production of the liquid level measuring instrument in the coal chemical gas holder.

[0020] Example 2 The diameters of the first main bearing 201 and the second main bearing are greater than 60cm and less than or equal to 70cm; the dimensions of the first main bearing 201 and the second main bearing along the first direction are greater than or equal to 220cm and less than or equal to 240cm; the diameters of the first auxiliary bearing 202 and the second auxiliary bearing are greater than or equal to 24cm and less than or equal to 36cm; the dimensions of the first auxiliary bearing 202 and the second auxiliary bearing along the first direction are equal to the dimensions of the first main bearing 201 along the first direction; wherein, the first direction is the direction perpendicular to the first main bearing 201 from the connection part of the first frame 203; the first roller 20 and the first roller 20 fixing frame 120 are located at 1 / 3 to 2 / 3 of the dimension of the water tank 11 along the second direction; the hydraulic measuring instrument 4 bracket 122 is located at 2 / 3 to 1 of the dimension of the water tank 11 along the second direction; wherein, the second direction is the direction from the first gas holder 101 to the second gas holder 102.

[0021] In this utility model, by setting the dimensions of the first main bearing 201, the second main bearing, the first auxiliary bearing 202, and the second auxiliary bearing, the friction between the double-layer hydraulic hose 3 and the first main bearing 201, the second main bearing, the first auxiliary bearing 202, and the second auxiliary bearing is reduced. The first roller 20 fixing bracket 120 is located at 1 / 3 to 2 / 3 of the dimension of the water tank 11 along the second direction. The hydraulic measuring instrument 4 bracket 122 is located at 2 / 3 to 1 of the dimension of the water tank 11 along the second direction, preventing other parts of the double-layer hydraulic hose 3 from contacting the steel structure bracket.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protection system for a double-layer hydraulic hose, characterized in that, include: Gas tank level measuring device, roller assembly, double-layer hydraulic hose and hydraulic gauge; The gas holder liquid level measuring device includes a gas holder assembly, a water tank, and a fixing frame assembly. The gas holder assembly is located inside the water tank and is slidably connected to the water tank, which is filled with water. A roller assembly is fixedly connected to the outside of the water tank. The fixing frame assembly is fixedly connected to the water tank. A double-layer hydraulic hose passes through the roller assembly and is fixedly connected to the top corner of the gas holder assembly. The double-layer hydraulic hose is filled with liquid. A hydraulic gauge is located at the bottom of the double-layer hydraulic hose and is fixedly connected to the fixing frame assembly.

2. The protection system for the double-layer hydraulic hose according to claim 1, characterized in that, A first guide rail is provided on the side of the water tank near the gas holder assembly, and a first slider is provided on the first guide rail. The gas holder assembly is fixedly connected to the first slider. The fixing frame assembly includes a first roller fixing frame, a second roller fixing frame, and a hydraulic measuring instrument bracket. The first roller fixing frame and the hydraulic measuring instrument bracket are respectively fixedly connected to the water tank, the second roller fixing frame is fixedly connected to the hydraulic measuring instrument bracket, and the hydraulic measuring instrument is fixedly connected to the hydraulic measuring instrument bracket.

3. The protection system for the double-layer hydraulic hose according to claim 2, characterized in that, The roller assembly includes a first roller and a second roller; the first roller is embedded in a first roller holder, and the second roller is embedded in a second roller holder.

4. The protection system for the double-layer hydraulic hose according to claim 3, characterized in that, The first roller includes a first main bearing, a first auxiliary bearing, and a first frame; the second roller includes a second main bearing, a second auxiliary bearing, and a second frame, with both ends of the first main bearing and the first auxiliary bearing rotatably connected to the first frame; the connecting portion of the first frame and the connecting portion of the second frame are both semi-circular grooves, the first main bearing is located between the connecting portion of the first frame and the first auxiliary bearing, and the connecting portion of the first frame is embeddedly connected to the first roller fixing frame; both ends of the second main bearing and the second auxiliary bearing are rotatably connected to the second frame, the second main bearing is located between the connecting portion of the second frame and the second auxiliary bearing, and the connecting portion of the second frame is embeddedly connected to the second roller fixing frame.

5. The protection system for the double-layer hydraulic hose according to claim 1, characterized in that, The gas holder assembly includes a first gas holder, a second gas holder, and a gas holder bell; the first gas holder and the second gas holder are slidably connected, and the gas holder bell is fixedly connected to the first gas holder; the second gas holder is fixedly connected to the water tank, a second guide rail is provided on the inner side of the second gas holder, a second slider is provided on the second guide rail, the first gas holder is fixedly connected to the second slider, a first air inlet and a first air outlet are provided on one side of the second gas holder, and a second air inlet and a second air outlet are provided on one side of the water tank; an air inlet pipe is connected to the second gas holder through the second air inlet and the first air inlet, and an air outlet pipe is connected to the second gas holder through the second air outlet and the first air outlet.

6. The protection system for the double-layer hydraulic hose according to claim 4, characterized in that, The diameters of the first main bearing and the second main bearing are greater than 60cm and less than or equal to 70cm; the dimensions of the first main bearing and the second main bearing along the first direction are greater than or equal to 220cm and less than or equal to 240cm; the diameters of the first auxiliary bearing and the second auxiliary bearing are greater than or equal to 24cm and less than or equal to 36cm; the dimensions of the first auxiliary bearing and the second auxiliary bearing along the first direction are equal to the dimensions of the first main bearing along the first direction; wherein, the first direction is the direction perpendicular to the first main bearing and the first frame connection portion.

7. The protection system for the double-layer hydraulic hose according to claim 2, characterized in that, The first roller fixing bracket is located at 1 / 3 to 2 / 3 of the dimension of the water tank along the second direction; the hydraulic measuring instrument bracket is located at 2 / 3 to 1 of the dimension of the water tank along the second direction; wherein, the second direction is the direction from the first gas holder to the second gas holder.

Images