Convenient tool and method for preventing disassembly damage of online instrument sampling filter

Abstract

The present application relates to a kind of convenient tools for preventing online instrument sampling filter disassembly damage.The present application relates to a kind of convenient tools for preventing online instrument sampling filter disassembly damage.Currently, when replacing filter cartridge, only large tools such as pipe wrench can be used, which can cause maintenance personnel to be unable to normally operate in limited space, and the asymmetry of thread can also cause the appearance or thread of filter to be damaged during disassembly.A kind of convenient tools for preventing online instrument sampling filter disassembly damage, which comprises: a side sector plate (1), an upper sector plate (2) and a lower sector plate (3), one end of the upper sector plate is rotatably connected to one end of the side sector plate by a pin shaft (4), the other end of the side sector plate is connected to one end of the lower sector plate, a candy gourd-shaped insertion hole (5) is formed in the plate surface of the side sector plate, and a semicircular screw (6) is inserted into the candy gourd-shaped insertion hole, and the semicircular screw connects the lower sector plate and the side sector plate.The present application is applied to the field of water sample filter.

Description

Technical Field

[0001] This invention relates to a convenient tool and disassembly method for preventing damage to online instrument sampling filters during disassembly. Background Technology

[0002] Currently, filters serve as a cleaning system for online instruments, filtering impurities to ensure measurement accuracy; filtering the air coming from the air compressor to ensure that the actuators are free of oil and impurities, thus guaranteeing the correct and stable operation of the system.

[0003] Online chemical instrument sampling filters, as auxiliary equipment and routine consumable components of online chemical instrument measurement systems, suffer from a high failure rate, typically 4-6 per month, due to factors such as inconvenience in adjusting sampling pressure and disassembly. Approximately one-third of these failures are due to disassembly-related reasons. Replacing filter cartridges requires the use of large tools such as pipe wrenches, hindering maintenance personnel from performing work properly in confined spaces. Asymmetrical threads can also damage the filter's appearance or texture during disassembly, and uneven application of force can even lead to complete filter failure.

[0004] Currently, the performance characteristics of water sample filters are as follows: The outer casing is made of plexiglass; When replacing the filter element, the lower port needs to be unscrewed; Connection method: threaded connection. Water sample filter technical parameters: 1. Nominal pressure: ≤0.8Mpa 2. Test pressure: 1.0Mpa 3. Applicable medium: Instrument sample water 4. Applicable temperature: ≤60°C 5. Flow rate: 2000ml / min. During the replacement of the filter element in the low-pressure water sample filter at the power plant's testing station, manual operation may not be sufficient to tighten the lower port of the filter, leading to leaks during equipment operation and inaccurate measurements. Using large tools such as pipe wrenches can easily damage the equipment and severely impact the maintenance progress. Summary of the Invention

[0005] The purpose of this invention is to provide a convenient tool and disassembly method for preventing damage to online instrument sampling filters during disassembly. It is easy for maintenance personnel to carry, flexible and compact, and can effectively solve the problem of preventing damage to the filter element of low-pressure water sample filter in thermal power plant laboratory during regular replacement. It is a necessary and practical tool.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A convenient tool for preventing damage to online instrument sampling filters during disassembly includes: a side fan-shaped plate, an upper fan-shaped plate, and a lower fan-shaped plate. One end of the upper fan-shaped plate is rotatably connected to one end of the side fan-shaped plate via a pin, and the other end of the side fan-shaped plate is connected to one end of the lower fan-shaped plate. The side fan-shaped plate has a candied hawthorn-shaped insertion hole on its surface, and a semi-circular screw is inserted into the candied hawthorn-shaped insertion hole. The semi-circular screw connects the lower fan-shaped plate to the side fan-shaped plate.

[0008] The upper fan-shaped plate has three finger insertion holes of the same diameter evenly distributed on its surface, and the lower fan-shaped plate has a thumb insertion hole on its right side surface, with the diameter of the thumb insertion hole being the same as that of the finger insertion hole.

[0009] A semi-circular screw that can be tightened or loosened is installed in the hole on the left side of the lower sector plate, and the upper sector plate and the lower sector plate have a serrated structure on their inner arc surfaces.

[0010] The aforementioned convenient tool for preventing damage to the online instrument sampling filter during disassembly includes an upper sector plate and a lower sector plate on the same horizontal plane, with the upper sector plate and the lower sector plate stacked on top of the side sector plate.

[0011] The convenient tool for preventing damage to the online instrument sampling filter during disassembly, wherein the thickness of the side fan-shaped plate, the upper fan-shaped plate and the lower fan-shaped plate is 20mm.

[0012] The aforementioned convenient tool for preventing damage to the online instrument sampling filter during disassembly includes a lower end cap for the sampling filter inserted between the side fan-shaped plate, the upper fan-shaped plate, and the lower fan-shaped plate.

[0013] The beneficial effects of this invention are:

[0014] 1. This invention addresses the problem of inconvenient disassembly of existing online chemical instrumentation sampling filters. Simultaneously, considering the need to reduce damage to the filter's appearance or texture during disassembly, it provides a portable disassembly tool. This tool is not only easy for maintenance personnel to carry, but also flexible and compact. It is a necessary and practically significant tool for the periodic replacement of low-pressure water sample filter elements in thermal power plant laboratories, preventing damage. 2. This invention enables quick and effective replacement of filter elements when sampling filters malfunction, preventing disruption to operator monitoring, extending the service life of chemical instrumentation equipment, and reducing equipment maintenance workload and costs. This new tool is convenient for maintenance personnel to carry and use, maximizing its effectiveness in confined spaces, improving filter reuse rates, and ensuring the operational readiness of online chemical instruments.

[0015] 2. This invention addresses the problem of inconvenient disassembly of existing online chemical instrumentation sampling filters, while also considering reducing damage to the filter's appearance or texture during disassembly. As an auxiliary device and a regular consumable component in online chemical instrumentation measurement systems, online chemical instrumentation sampling filters suffer from a high damage rate, typically 4-6 filters per month, due to factors such as inconvenient sampling pressure adjustment and disassembly. Approximately one-third of these failures are due to disassembly-related reasons. The filter-specific disassembly tool developed in this research is portable, compact, and highly efficient, while also preventing damage to the filter caused by improper disassembly.

[0016] 3. This invention enables quick and effective replacement of filter elements when sampling filters malfunction, preventing disruption to operator monitoring, extending the lifespan of chemical instrumentation equipment, and reducing maintenance workload and costs. This new tool is convenient for maintenance personnel to carry and use flexibly, maximizing its effectiveness even in confined spaces. It effectively addresses the challenges associated with the regular replacement of low-pressure water sample filter elements in thermal power plant testing stations.

[0017] 4. This invention features three finger insertion holes on the upper fan-shaped plate, allowing the index, middle, and ring fingers to be inserted into their respective holes. A thumb insertion hole is located on the right side of the lower fan-shaped plate. This structure ensures even force distribution on the tool, preventing damage due to uneven force. A gourd-shaped insertion hole is located on the left fan-shaped plate, and semi-circular screws are inserted into both the lower fan-shaped plate and the left fan-shaped plate's gourd-shaped insertion hole. Adjustment is achieved through these semi-circular screws, and the adjustment range can be adjusted according to… When disassembling the object's diameter, rotate the semi-circular screw until it passes through the gourd-shaped insertion hole. At this point, the side and lower sector plates are in an adjustable state. Continue rotating the semi-circular screw to fix it in place with the gourd-shaped insertion hole to prevent rotation. Place the lower end cover of the sampling filter between the upper, lower, and side sector plates, so that the serrated structure of the upper and lower sector plates engages with the threaded bottom of the filter. The serrations interlock and stabilize each other. Rotate clockwise and counterclockwise to disassemble and install the lower end cover of the sampling filter for filter element replacement. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Appendix Figure 2 It is attached Figure 1 A schematic diagram of the structure after adjustment of the middle semi-circular screw.

[0020] Appendix Figure 3 This is a schematic diagram of the side fan-shaped plate.

[0021] Appendix Figure 4 This is a schematic diagram of the upper sector plate.

[0022] Appendix Figure 5 This is a schematic diagram of the lower sector plate.

[0023] Appendix Figure 6 This is a schematic diagram of a semi-circular screw.

[0024] Appendix Figure 7 This is a schematic diagram of the sampling filter.

[0025] In the diagram: 1. Side fan-shaped plate, 2. Upper fan-shaped plate, 3. Lower fan-shaped plate, 4. Pin, 5. Gourd-shaped insertion hole, 6. Semi-circular screw, 7. Finger insertion hole, 8. Thumb insertion hole, 9. Serrated structure, 10. Sampling filter, 11. Lower end cap, 12. Filter element. Detailed Implementation

[0026] Example 1:

[0027] A convenient tool for preventing damage to online instrument sampling filters during disassembly includes: a side fan-shaped plate 1, an upper fan-shaped plate 2, and a lower fan-shaped plate 3. One end of the upper fan-shaped plate is rotatably connected to one end of the side fan-shaped plate via a pin 4, and the other end of the side fan-shaped plate is connected to one end of the lower fan-shaped plate. The side fan-shaped plate has a candied hawthorn-shaped insertion hole 5 on its surface, and a semi-circular screw 6 is inserted into the candied hawthorn-shaped insertion hole. The semi-circular screw connects the lower fan-shaped plate to the side fan-shaped plate.

[0028] The upper fan-shaped plate has three finger insertion holes 7 of the same diameter evenly distributed on its surface, and the lower fan-shaped plate has a thumb insertion hole 8 on its right side surface, and the diameter of the thumb insertion hole is the same as that of the finger insertion hole.

[0029] A semi-circular screw that can be tightened or loosened is installed in the hole on the left side of the lower sector plate, and a serrated structure 9 is provided on the inner arc surface of the upper sector plate and the lower sector plate.

[0030] Example 2:

[0031] According to the convenient tool for preventing damage to the online instrument sampling filter during disassembly as described in Embodiment 1, the upper sector plate and the lower sector plate are on the same horizontal plane, and the upper sector plate and the lower sector plate are stacked on top of the side sector plate.

[0032] Example 3:

[0033] According to Embodiment 1 or 2, the convenient tool for preventing damage to the online instrument sampling filter during disassembly, the side fan-shaped plate, the upper fan-shaped plate and the lower fan-shaped plate are 20mm thick, and the lower end cover 11 of the sampling filter 10 is inserted between the side fan-shaped plate, the upper fan-shaped plate and the lower fan-shaped plate.

[0034] Example 4:

[0035] Working principle:

[0036] When disassembling, first measure the size of the interface and adjust it using the left semi-circular screw. The adjustment can be made by turning the semi-circular screw according to the diameter of the object being disassembled.

[0037] After adjusting the size, tighten the screws to fix the semi-circular screws to the gourd-shaped socket shape and prevent rotation.

[0038] Insert the index, middle, and ring fingers into the upper fan-shaped hole, and the thumb into the lower fan-shaped hole.

[0039] The tool's threads engage with the lower thread of the filter, their serrated edges locking together securely.

[0040] Rotate clockwise and counterclockwise to remove and install the filter.

[0041] Example 5:

[0042] Research Methods:

[0043] Analyze the factors contributing to uneven stress during the disassembly of the filter in the online water sampling device;

[0044] Choose a tool model that distributes forces evenly;

[0045] Choose materials and processing tools that are easy to obtain based on the model.

[0046] The disassembly tools were tested and processed to analyze their usability and ease of use.

[0047] Technical approach:

[0048] Analyze lightweight and convenient piping tools or, based on experience, create boundary manipulation devices that distribute forces evenly.

[0049] Choose materials that are readily available for routine maintenance, such as stainless steel and hard plastics;

[0050] The selected materials are easy to polish and will not hurt your hands.

[0051] The tools used are easy to adjust and adapt to different pipe diameters or environmental needs.

[0052] The selection of technical parameters such as thickness should meet the force requirements of the tool.

Claims

1. A convenient tool for preventing damage to online instrument sampling filters during disassembly, comprising: The side sector plate, the upper sector plate and the lower sector plate are characterized in that: one end of the upper sector plate is rotatably connected with one end of the side sector plate through a pin shaft, the other end of the side sector plate is connected with one end of the lower sector plate, a sugar-cane-shaped insertion hole is formed on the surface of the side sector plate, and a semicircular screw is inserted into the sugar-cane-shaped insertion hole, the semicircular screw connects the lower sector plate with the side sector plate; three finger insertion holes with the same diameter are uniformly formed on the surface of the upper sector plate, a thumb insertion hole is formed on the right surface of the lower sector plate, and the diameter of the thumb insertion hole is the same as that of the finger insertion hole; a semicircular screw with adjustable tightness is installed in the hole on the left surface of the lower sector plate, and a sawtooth structure is formed on the inner arc surface of the upper sector plate and the lower sector plate; the semicircular screw is composed of a screw rod and a semicircular structure screw nut.

2. The convenient tool for preventing the disassembly damage of the sampling filter of the online meter according to claim 1, characterized in that: The upper sector plate and the lower sector plate are on the same horizontal plane, and the side sector plate is stacked above the upper sector plate and the lower sector plate.

3. The convenient tool for preventing the disassembly damage of the sampling filter of the online meter according to claim 2, characterized in that: The thickness of the side sector plate, the upper sector plate and the lower sector plate is 20 mm.

4. The convenient tool for preventing the disassembly damage of the sampling filter of the online meter according to claim 3, characterized in that: A lower end cover of a sampling filter is inserted between the side sector plate, the upper sector plate and the lower sector plate.

5. A method of removing the convenient tool for preventing the removal damage of the sampling filter of the on-line instrument according to any one of claims 1 to 4, characterized in that: The method comprises the following steps: firstly, three finger insertion holes are formed on the surface of the upper sector plate, the index finger, the middle finger and the ring finger are respectively inserted into the corresponding three finger insertion holes, and a thumb insertion hole is formed on the right surface of the lower sector plate, and the thumb is inserted into the thumb insertion hole; the above structure can make the tool bear force uniformly and prevent the device from being damaged due to uneven force; a sugar-cane-shaped insertion hole is formed on the surface of the left sector plate, and a semicircular screw is respectively inserted into the hole of the lower sector plate and the sugar-cane-shaped insertion hole of the left sector plate, and the semicircular screw is adjusted, the adjustment range can be determined according to the diameter of the object to be disassembled, when the semicircular screw is rotated, the semicircular screw can pass through the sugar-cane-shaped insertion hole, at this time, the side sector plate and the lower sector plate are in an adjusted state, when the semicircular screw is continuously rotated, the semicircular screw is fixed with the sugar-cane-shaped insertion hole to prevent rotation; the lower end cover of the sampling filter is placed between the upper sector plate, the lower sector plate and the side sector plate, the sawtooth structure of the upper sector plate and the lower sector plate is combined with the lower end thread of the filter, the sawtooth structures are stably clamped with each other, the lower end cover of the sampling filter is disassembled and installed in a clockwise or counterclockwise direction to replace the filter core.

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