Temperature sensor armoring device with scraping function and material removing method thereof

Abstract

The invention relates to a temperature sensor armoring device with a scraping function and a material removing method thereof.The temperature sensor armoring device comprises an executing mechanism, a valve body and an armoring piston, the executing mechanism is connected with the valve body, the driving end of the executing mechanism is connected with the armoring piston through a connecting block, and a through hole allowing the armoring piston to move is formed in the valve body; the top of the armored piston is provided with a detachable temperature sensor, the valve body comprises a body and a sleeve, the bottom of the sleeve is installed on the body, the top of the sleeve is provided with a scraping mechanism, the scraping mechanism comprises a scraping ring arranged on the inner wall of the sleeve and a plurality of obtuse angles arranged at the end of the sleeve in the circumferential direction, and an included angle is formed between every two adjacent obtuse angles. The end, close to the obtuse angle, of the scraping ring is an inclined end, the other end of the scraping ring is a horizontal end, and the outer wall diameter of the inclined end is smaller than that of the horizontal end. The temperature sensor armoring device not only realizes automatic material removal, but also improves the production efficiency and reduces the labor and time cost.

Description

Technical Field

[0001] The invention relates to the technical field of temperature sensor armoring devices, and in particular to a temperature sensor armoring device with a scraping function and a material removal method thereof. Background Art

[0002] The temperature sensor armor device in the prior art is fixedly installed on the flange, so that the temperature sensor and its armor extend into the reactor to detect the overall or local temperature in the reactor. Due to the reaction of certain materials in the reactor, the materials flow and solidify on the temperature sensor head and its armor part, which has a great impact on the accuracy of the temperature sensor measurement. Therefore, customers need to frequently remove materials from the temperature sensor and the armor part, which not only affects production work, but also increases labor and time costs. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a temperature sensor armoring device with a scraping function, which not only realizes automatic material removal, but also improves production efficiency and reduces labor and time costs.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a temperature sensor armored device with a scraping function, including an actuator, a valve body and an armored piston, the actuator is connected to the bottom of the valve body through a column assembly, the driving end of the actuator is connected to the armored piston through a connecting block, a through hole for the armored piston to move is provided inside the valve body, the actuator is used to drive the armored piston to move up and down along the valve body, and a detachable temperature sensor for detecting the temperature of the reactor is provided on the top of the armored piston.

[0005] The valve body includes a main body and a sleeve, the bottom of the sleeve is installed on the main body, and a scraping mechanism for removing materials on the armored piston is arranged on the top of the sleeve. The scraping mechanism includes a scraper ring arranged on the inner wall of the sleeve and a plurality of obtuse angles arranged circumferentially at the end of the sleeve, and an angle is arranged between adjacent obtuse angles. The end of the scraper ring close to the obtuse angle is an inclined end, and the other end of the scraper ring is a horizontal end. The outer wall diameter of the inclined end is smaller than the outer wall diameter of the horizontal end. When the armored piston moves up and down in the valve body, the obtuse angle removes large materials on the armored piston, and the scraper ring removes small materials on the armored piston.

[0006] In one embodiment, the obtuse angle of the temperature sensor armor device with scraping function includes a first inclined surface, a second inclined surface, a third inclined surface and a fourth inclined surface. The first inclined surface and the second inclined surface are arranged obliquely relative to each other and do not intersect. The two ends of the first inclined surface are connected to the third inclined surface and the fourth inclined surface. The two ends of the second inclined surface are connected to the third inclined surface and the fourth inclined surface. The third inclined surface and the fourth inclined surface are arranged opposite to each other and intersect.

[0007] In one of the embodiments, the inner wall of the valve body of the temperature sensor armor device with scraping function is circumferentially provided with a first stuffing component and a second stuffing component, the first stuffing component is located at the head of the valve body and at one side of the scraper ring, the second stuffing component is located at the tail of the valve body, a support ring is provided between the first stuffing component and the second stuffing component, and the distance between the first stuffing component and the second stuffing component is greater than the movement stroke of the armored piston.

[0008] In one of the embodiments, the first packing assembly of the temperature sensor armor device with scraping function includes a plurality of sixth packings for sealing the valve body and supporting the armored piston in sequence, and the sixth packing is graphite packing.

[0009] In one of the embodiments, the second packing assembly of the temperature sensor armor device with scraping function includes, from bottom to top, a packing gland, a packing sleeve, a first packing, a second packing, a third packing, a first packing ring, a fourth packing, a fifth packing and a second packing ring, the inner wall of the second packing ring is provided with two first O-rings, the outer wall of the second packing ring is provided with a second O-ring, and the packing gland is connected to the valve body by a bolt assembly.

[0010] In one of the embodiments, a cavity for accommodating an armored piston and a temperature sensor is provided in the connection block of the temperature sensor armor device with a scraping function, a material changing port is provided on the connection block, a removable cover plate is provided on the material changing port, and the connection block is located between the column assemblies and slidably cooperates with the column assemblies.

[0011] In one of the embodiments, the temperature sensor armoring device with scraping function further includes a junction box for connecting to the temperature sensor, and the junction box is connected to the connection block.

[0012] In one of the embodiments, the temperature sensor armor device with scraping function also includes a position detection component, which includes a fixed column and two position sensors. The two position sensors are installed on the fixed column, and the two position sensors are used to perform position detection on the moving distance of the armored piston.

[0013] In one of the embodiments, the actuator of the temperature sensor armoring device with scraping function includes a cylinder and a piston rod, the driving end of the cylinder is connected to the piston rod, and the piston rod is connected to the connecting block.

[0014] A method for removing material from a temperature sensor armor device with a scraping function, using a temperature sensor armor device with a scraping function, and the specific steps are as follows:

[0015] Step 1: The temperature sensor is placed inside the head of the armored piston, the wire of the temperature sensor is connected to the junction box, one end of the armored piston where the temperature sensor is placed extends out of the head of the valve body and is located outside the valve body, and the other end of the armored piston extends out of the tail of the valve body and is connected to the connection block;

[0016] Step 2: The actuator drives the connecting block to drive the armored piston to move up and down along the valve body, so that the scraping mechanism of the valve body removes the material on the head of the armored piston;

[0017] Step 3: During the movement of the armored piston, the first packing assembly in the valve body seals and scrapes the armored piston, and the second packing assembly in the valve body seals and supports the armored piston;

[0018] Step 4: Open the cover on the connecting block to replace the temperature sensor in the armored piston.

[0019] The beneficial effects of this application are:

[0020] The present application provides a temperature sensor armor device with a scraping function, which drives the armored piston to move up and down on the scraping mechanism of the valve body through an actuator pneumatic mechanism, so that the scraping mechanism removes the material on the armored piston. The actuator has a fast driving speed, and cooperates with the scraping mechanism to generate a strong impact force on the material on the armored piston, thereby improving the removal effect. The temperature sensor armor device with a scraping function realizes regular online automatic material removal, which not only ensures the accuracy of the temperature sensor measurement, but also eliminates the need for manual pressure relief, disassembly and cleaning, greatly reducing labor and time costs, while also improving production efficiency.

[0021] The scraping mechanism of the temperature sensor armor device with scraping function adopts a plurality of obtuse angles to break and remove large materials on the armor piston. The obtuse angles reduce the contact area with the material, increase the pressure, and improve the removal effect of large materials.

[0022] The scraping mechanism of the temperature sensor armor device with scraping function adopts a scraping ring to remove small materials attached to the surface of the armor piston, thereby improving the removal effect of small materials.

[0023] The temperature sensor armor device with scraping function uses a first filler component to remove residual materials on the armored piston, and also realizes sealing and support of the armored piston.

[0024] The temperature sensor armoring device with scraping function adopts a second packing component to achieve sealing of the valve body and support of the armoring piston.

[0025] A detachable cover plate is adopted on the connection block of the temperature sensor armoring device with a scraping function, so that the temperature sensor can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a temperature sensor armor device with a scraping function according to an embodiment of the present application;

[0027] Figure 2 A cross-sectional view of a temperature sensor armor device with a scraping function according to an embodiment of the present application;

[0028] Figure 3 A schematic diagram of a valve body of a temperature sensor armor device with a scraping function according to an embodiment of the present application;

[0029] Figure 4 A cross-sectional view of a valve body of a temperature sensor armor device with a scraping function according to an embodiment of the present application;

[0030] in:

[0031] 1. Actuator; 2. Valve body; 3. Armored piston; 4. Column assembly; 5. Connecting block; 6. Temperature sensor; 7. Junction box; 8. Position detection assembly; 11. Cylinder; 12. Piston rod; 21. Body; 22. Sleeve; 23. Through hole; 24. First packing assembly; 25. Second packing assembly; 26. Support ring; 221. Scraping mechanism; 100. Scraping ring; 101. Obtuse angle; 001. First inclined surface; 002. Second inclined surface; 003. Third inclined surface; 004. Fourth inclined surface surface; 005, inclined end; 006, horizontal end; 241, sixth packing; 251, packing gland; 252, packing sleeve; 253, first packing; 254, second packing; 255, third packing; 256, first packing ring; 257, fourth packing; 258, fifth packing; 259, second packing ring; 260, first O-ring; 261, second O-ring; 262, bolt assembly; 51, cover plate; 52, cavity; 53, material change port; 81, fixing column; 82, position sensor. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] like Figure 1 and Figure 2As shown, an embodiment of the present application provides a temperature sensor armored device with a scraping function, including an actuator 1, a valve body 2 and an armored piston 3. The actuator 1 is connected to the bottom of the valve body 2 through a column assembly 4, and the driving end of the actuator 1 is connected to the armored piston 3 through a connecting block 5. A through hole 23 for the armored piston 3 to move is provided inside the valve body 2. The actuator 1 is used to drive the armored piston 3 to move up and down along the valve body 2. A detachable temperature sensor 6 for detecting the temperature of the reactor is provided on the top of the armored piston 3.

[0034] like Figure 3 and Figure 4 As shown, the valve body 2 includes a main body 21 and a sleeve 22, the bottom of the sleeve 22 is installed on the main body 21, and a scraping mechanism 221 for removing materials on the armored piston 3 is arranged on the top of the sleeve 22. The scraping mechanism 221 includes a scraper ring 100 arranged on the inner wall of the sleeve 22 and a plurality of obtuse angles 101 arranged circumferentially at the end of the sleeve 22, and an angle is arranged between adjacent obtuse angles 101. The end of the scraper ring 100 close to the obtuse angle 101 is an inclined end 005, and the other end of the scraper ring 100 is a horizontal end 006. The outer wall diameter of the inclined end 005 is smaller than the outer wall diameter of the horizontal end 006. When the armored piston 3 moves up and down in the valve body 2, the obtuse angle 101 removes large materials on the armored piston 3, and the scraper ring 100 removes small materials on the armored piston 3.

[0035] Specifically, eight obtuse angles 101 are circumferentially arranged at the head of the sleeve 22, and an included angle is arranged between adjacent obtuse angles 101. The end of the scraper ring 100 on the inner wall of the sleeve 22 close to the obtuse angle 101 is an inclined end 005, and the other end of the scraper ring 100 is located at the horizontal end 006 and at one end of the first packing assembly 24. The outer wall diameter of the inclined end 005 is smaller than the outer wall diameter of the horizontal end 006. When the actuator 1 drives the armored piston 3 to move up and down in the valve body 2, the scraper ring 100 slides with the armored piston 3 and removes small materials on the armored piston 3, and the obtuse angle 101 removes large materials on the armored piston 3.

[0036] The temperature sensor 6 is placed in the head of the armored piston 3, the wire body of the temperature sensor 6 is connected to the junction box 7, one end of the armored piston 3 where the temperature sensor 6 is placed extends out of the sleeve 22 of the valve body 2 and is located outside the valve body 2, and the other end of the armored piston 3 extends out of the body 21 of the valve body 2 and is connected to the connecting block 5. After the temperature sensor armored device is used in the reactor for a period of time, when the material in the reactor flows and solidifies on the armored piston 3 where the temperature sensor 6 is placed, the connecting block 5 can be driven by the actuator 1 to drive the armored piston 3 to move up and down along the valve body 2, so that the 8 obtuse angles 101 of the scraping mechanism 221 of the valve body 2 remove the large material on the head of the armored piston 3, and the scraping ring 100 of the scraping mechanism 221 removes the small material on the armored piston 3. During the movement of the armored piston 3, the first packing assembly 24 in the valve body 2 seals and scrapes the armored piston 3, and the second packing assembly 25 in the valve body 2 seals and supports the armored piston 3. When the temperature sensor 6 needs to be replaced, the temperature sensor 6 can be replaced by simply opening the cover plate 51 on the connection block 5. The valve body 2 is made of duplex steel 2205, the armored piston 3 is made of duplex steel 2507, and the scraper ring 100 is made of 17-4PH stainless steel. The valve body 2, the armored piston 3 and the scraper ring 100 are surface hardened respectively, so that the three have different hardness. The actuator 1 is a pneumatic actuator 1 or an electric actuator 1.

[0037] In the above structure, the large material on the armored piston 3 is removed by setting an obtuse angle 101 on the sleeve 22 of the valve body 2. The obtuse angle 101 reduces the contact area with the material, increases the pressure, and improves the removal effect of large materials. A scraper ring 100 is set in the sleeve 22 of the valve body 2 to contact the armored piston 3 and remove small materials on the armored piston 3. The armored piston 3 can be regularly driven up and down by the actuator 1. The actuator 1 has a fast driving speed and cooperates with the scraping mechanism 221 to have a good impact removal effect on the material solidified on the armored piston 3. The temperature sensor armor device with scraping function realizes regular online automatic material removal, which not only ensures the accuracy of the temperature sensor 6 measurement, but also does not require manual pressure relief, disassembly and cleaning, greatly reducing labor and time costs, while also improving production efficiency.

[0038] like Figure 3As shown, in one embodiment, the obtuse angle 101 of the temperature sensor armor device with scraping function includes a first inclined surface 001, a second inclined surface 002, a third inclined surface 003 and a fourth inclined surface 004. The first inclined surface 001 and the second inclined surface 002 are arranged obliquely relative to each other and do not intersect. The two ends of the first inclined surface 001 are connected to the third inclined surface 003 and the fourth inclined surface 004. The two ends of the second inclined surface 002 are connected to the third inclined surface 003 and the fourth inclined surface 004. The third inclined surface 003 and the fourth inclined surface 004 are arranged relative to each other and intersect. The setting of the obtuse angle 101 reduces the contact area with large materials. When the armor piston 3 moves up and down, the obtuse angle 101 increases the pressure on the large materials, thereby improving the removal effect of large materials.

[0039] like Figure 2 and Figure 4 As shown, in one embodiment, the inner wall of the valve body 2 of the temperature sensor armor device with scraping function is provided with a first stuffing assembly 24 and a second stuffing assembly 25 along the circumferential direction, the first stuffing assembly 24 is located at the head of the valve body 2 and at one side of the scraper ring 100, the second stuffing assembly 25 is located at the tail of the valve body 2, a support ring 26 is provided between the first stuffing assembly 24 and the second stuffing assembly 25, and the distance between the first stuffing assembly 24 and the second stuffing assembly 25 is greater than the movement stroke of the armored piston 3. The spacing between the first stuffing assembly 24 and the second stuffing assembly 25 is greater than the movement stroke of the armored piston 3, so that the armored piston 3 passing through the second stuffing assembly 25 is always in the valve body 2, which can better extend the service life of the first stuffing assembly 24 and the second stuffing assembly 25. When the armored piston 3 reciprocates, it does not contact the support ring 26, and the support ring 26 supports the first stuffing assembly 24 and the second stuffing assembly 25.

[0040] like Figure 4 As shown, in one embodiment, the first packing assembly 24 of the temperature sensor armor device with scraping function includes a plurality of sixth packings 241 for sealing the valve body 2 and supporting the armored piston 3 in sequence, and the sixth packing 241 is a graphite packing. Four sixth packings 241 are arranged at the side end of the scraper ring 100 of the sleeve 22, and the sixth packing 241 is a graphite packing, and the graphite packing is a graphite packing containing inconel wire. The graphite packing has the characteristics of wear resistance and scratch resistance, and can remove the residual material on the armored piston 3. This setting not only plays a role of sealing and supporting the armored piston 3, but also effectively prevents a small amount of material left on the armored piston 3 from entering the valve body 2.

[0041] like Figure 4As shown, in one embodiment, the second packing assembly 25 of the temperature sensor armor device with scraping function includes a packing gland 251, a packing sleeve 252, a first packing 253, a second packing 254, a third packing 255, a first packing ring 256, a fourth packing 257, a fifth packing 258 and a second packing ring 259 from bottom to top, the inner wall of the second packing ring 259 is provided with two first O-rings 260, the outer wall of the second packing ring 259 is provided with a second O-ring 261, and the packing gland 251 is connected to the valve body 2 through a bolt assembly 262. The outer wall of the second packing ring 259 is provided with an annular groove for accommodating the second O-ring 261. The packing gland 251 sequentially presses the packing sleeve 252, the first packing 253, the second packing 254, the third packing 255, the first packing ring 256, the fourth packing 257, the fifth packing 258 and the second packing ring 259 into the valve body 2. The first packing ring 256 and the second packing ring 259 are made of 316L stainless steel, the first packing 253, the second packing 254, the third packing 255 and the fourth packing 257 are all made of graphite, and the packing gland 252 and the packing gland 251 are made of 304 stainless steel. The second packing assembly 25 is configured by a combination of an O-ring and a composite packing, which has a good sealing and supporting effect on the valve body 2 and the armored piston 3.

[0042] like Figure 2 As shown, in one embodiment, a cavity 52 for accommodating the armored piston 3 and the temperature sensor 6 is provided in the connection block 5 of the temperature sensor armor device with a scraping function, a refueling port 53 is provided on the connection block 5, and a detachable cover plate 51 is provided on the refueling port 53. The connection block 5 is located between the column assemblies 4 and slides with the column assemblies 4. The cover plate 51 and the refueling port 53 are detachably connected by a bolt assembly 262. The armored piston 3 extends into the cavity 52 of the connection block 5 and is fixedly connected to the connection block 5. The cavity 52 and the refueling port 53 of the connection block 5 can be used for the temperature sensor 6 in the armored piston 3 to pass through and replace. When the temperature sensor 6 needs to be replaced, the cover plate 51 is opened, and the lead wire of the temperature sensor 6 is manually pulled through the refueling port 53 to pull the temperature sensor 6 out of the armored piston 3 into the cavity 52 of the connection block 5, and then replaced from the refueling port 53. The setting of the lengthened connection block 5 and the cover plate 51 facilitates the replacement of the temperature sensor 6.

[0043] like Figure 1 As shown, in one embodiment, the temperature sensor armor device with scraping function further includes a junction box 7 for connecting to the temperature sensor 6, and the junction box 7 is connected to the connection block 5. The junction box 7 is installed at one end of the connection block 5, and the junction box 7 is connected to the lead of the temperature sensor 6. This arrangement improves the safety performance of the temperature sensor 6 and enhances convenience and reliability.

[0044] like Figure 2 As shown, in one embodiment, the temperature sensor armor device with scraping function further includes a position detection component 8, and the position detection component 8 includes a fixed column 81 and two position sensors 82, and the two position sensors 82 are installed on the fixed column 81. The two position sensors 82 are used to detect the movement distance of the armored piston 3. This setting is convenient for detecting the movement position of the armored piston 3 and timely feedback of the movement status to the staff.

[0045] like Figure 1 and Figure 2 As shown, in one embodiment, the actuator 1 of the temperature sensor armor device with scraping function includes a cylinder 11 and a piston rod 12, the driving end of the cylinder 11 is connected to the piston rod 12, and the piston rod 12 is connected to the connecting block 5. The cylinder 11 drives the piston rod 12 to drive the connecting block 5 and the armored piston 3 to move up and down. This arrangement facilitates driving the armored piston 3 to move up and down to remove the solidified material on the armored piston 3.

[0046] like Figure 1 As shown, the embodiment of the present application also provides a method for removing material from a temperature sensor armor device with a scraping function, using a temperature sensor armor device with a scraping function, and the specific steps are as follows:

[0047] Step 1: The temperature sensor 6 is placed in the head of the armored piston 3, the wire body of the temperature sensor 6 is connected to the junction box 7, one end of the armored piston 3 where the temperature sensor 6 is placed extends out of the head of the valve body 2 and is located outside the valve body 2, and the other end of the armored piston 3 extends out of the tail of the valve body 2 and is connected to the connection block 5;

[0048] Step 2: The actuator 1 drives the connecting block 5 to drive the armored piston 3 to move up and down along the valve body 2, so that the scraping mechanism 221 of the valve body 2 removes the material on the head of the armored piston 3;

[0049] Step 3: During the movement of the armored piston 3, the first packing assembly 24 in the valve body 2 seals and scrapes the armored piston 3, and the second packing assembly 25 in the valve body 2 seals and supports the armored piston 3;

[0050] Step 4: Open the cover plate 51 on the connecting block 5 to replace the temperature sensor 6 in the armored piston 3.

[0051] The method for removing materials by the temperature sensor armoring device with scraping function not only realizes automatic material removal and ensures the measurement accuracy of the temperature sensor 6, but also improves the removal effect and production efficiency, and also facilitates manual replacement of the temperature sensor 6.

[0052] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A temperature sensor armoring device with scraping function, characterized in that: The invention comprises an actuator (1), a valve body (2) and an armored piston (3); the actuator (1) is connected to the bottom of the valve body (2) via a column assembly (4); the driving end of the actuator (1) is connected to the armored piston (3) via a connecting block (5); a through hole (23) for the armored piston (3) to move is provided inside the valve body (2); the actuator (1) is used to drive the armored piston (3) to move up and down along the valve body (2); and a detachable temperature sensor (6) for detecting the temperature of the reactor is provided on the top of the armored piston (3); The valve body (2) comprises a body (21) and a sleeve (22); the bottom of the sleeve (22) is mounted on the body (21); a scraping mechanism (221) for removing material from the armored piston (3) is arranged on the top of the sleeve (22); the scraping mechanism (221) comprises a scraping ring (100) arranged on the inner wall of the sleeve (22) and a plurality of obtuse angles (101) arranged circumferentially at the end of the sleeve (22); and a plurality of obtuse angles (101) are arranged between adjacent obtuse angles (101). The end of the scraper ring (100) close to the obtuse angle (101) is an inclined end (005), and the other end of the scraper ring (100) is a horizontal end (006). The outer wall diameter of the inclined end (005) is smaller than the outer wall diameter of the horizontal end (006). When the armored piston (3) moves up and down in the valve body (2), the obtuse angle (101) removes large materials on the armored piston (3), and the scraper ring (100) removes small materials on the armored piston (3).

2. The temperature sensor armoring device with scraping function according to claim 1 is characterized in that: The obtuse angle (101) comprises a first inclined surface (001), a second inclined surface (002), a third inclined surface (003) and a fourth inclined surface (004); the first inclined surface (001) and the second inclined surface (002) are arranged obliquely relative to each other and do not intersect; two ends of the first inclined surface (001) are connected to the third inclined surface (003) and the fourth inclined surface (004); two ends of the second inclined surface (002) are connected to the third inclined surface (003) and the fourth inclined surface (004); the third inclined surface (003) and the fourth inclined surface (004) are arranged relative to each other and intersect.

3. The temperature sensor armoring device with scraping function according to claim 1, characterized in that: The inner wall of the valve body (2) is provided with a first stuffing component (24) and a second stuffing component (25) along the circumferential direction; the first stuffing component (24) is located at the head of the valve body (2) and at one side of the scraper ring (100); the second stuffing component (25) is located at the tail of the valve body (2); a support ring (26) is provided between the first stuffing component (24) and the second stuffing component (25); and the distance between the first stuffing component (24) and the second stuffing component (25) is greater than the movement stroke of the armored piston (3).

4. The temperature sensor armoring device with scraping function according to claim 3 is characterized in that: The first packing assembly (24) comprises in sequence a plurality of sixth packings (241) for sealing the valve body (2) and supporting the armored piston (3), and the sixth packings (241) are graphite packings.

5. The temperature sensor armoring device with scraping function according to claim 3, characterized in that: The second packing assembly (25) includes, from bottom to top, a packing gland (251), a packing sleeve (252), a first packing (253), a second packing (254), a third packing (255), a first packing ring (256), a fourth packing (257), a fifth packing (258) and a second packing ring (259); the inner wall of the second packing ring (259) is provided with two first O-rings (260); the outer wall of the second packing ring (259) is provided with a second O-ring (261); the packing gland (251) is connected to the valve body (2) via a bolt assembly (262).

6. The temperature sensor armoring device with scraping function according to claim 1, characterized in that: The connection block (5) is provided with a cavity (52) for accommodating the armored piston (3) and the temperature sensor (6), the connection block (5) is provided with a material change port (53), and the material change port (53) is provided with a detachable cover plate (51), and the connection block (5) is located between the column assemblies (4) and is slidably matched with the column assemblies (4).

7. The temperature sensor armoring device with scraping function according to claim 1, characterized in that: It also comprises a junction box (7) for connecting to the temperature sensor (6), and the junction box (7) is connected to the connection block (5).

8. The temperature sensor armoring device with scraping function according to claim 1, characterized in that: It also includes a position detection component (8), which includes a fixed column (81) and two position sensors (82). The two position sensors (82) are installed on the fixed column (81), and the two position sensors (82) are used to detect the position of the moving distance of the armored piston (3).

9. The temperature sensor armoring device with scraping function according to claim 1, characterized in that: The actuator (1) comprises a cylinder (11) and a piston rod (12), wherein the driving end of the cylinder (11) is connected to the piston rod (12), and the piston rod (12) is connected to a connecting block (5).

10. A method for removing material from a temperature sensor armor device with a scraping function, using the temperature sensor armor device with a scraping function as claimed in any one of claims 1 to 9, characterized in that: The specific steps are as follows: Step 1: The temperature sensor (6) is placed inside the head of the armored piston (3), the wire body of the temperature sensor (6) is connected to the junction box (7), one end of the armored piston (3) where the temperature sensor (6) is placed extends out of the head of the valve body (2) and is located outside the valve body (2), and the other end of the armored piston (3) extends out of the tail of the valve body (2) and is connected to the connection block (5); Step 2: The actuator (1) drives the connecting block (5) to drive the armored piston (3) to move up and down along the valve body (2), so that the scraping mechanism (221) of the valve body (2) removes the material on the head of the armored piston (3); Step 3: During the movement of the armored piston (3), the first packing component (24) in the valve body (2) seals and scrapes the armored piston (3), and the second packing component (25) in the valve body (2) seals and supports the armored piston (3); Step 4: Open the cover plate (51) on the connection block (5) to replace the temperature sensor (6) in the armored piston (3).

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