Plug-in type temperature sensor cleaning device

Abstract

The utility model discloses a plug-in type temperature sensor cleaning device, which belongs to the technical field of sensor cleaning, and comprises a telescopic device and a scraping device which are used for being installed on a supporting structure, the scraping device comprises a scraping part and a supporting part, the supporting part is installed on the supporting structure, the scraping part is connected with the supporting part, and the telescopic device is connected with the supporting part. The fixed end of the telescopic device is installed on the supporting structure, the movable end of the telescopic device is used for being connected with a temperature sensor, and the temperature sensor is used for penetrating through the scraping part. The temperature sensor is driven by the telescopic device to axially move relative to the scraping device, scales on the surface of the temperature sensor can be conveniently and quickly cleaned by the scraping part, and the requirement on manpower is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor cleaning, in particular to an insertion type temperature sensor cleaning device. Background Art

[0002] In today's rapidly developing petrochemical industry, temperature monitoring of tanks and tanks plays a crucial role, directly impacting the stability and safety of the production process. Traditionally, this task has relied primarily on insertion temperature sensors, which can penetrate deep into the media, providing real-time temperature feedback and providing precise data for process control. However, with the increasing complexity of production environments and the extension of production cycles, these insertion temperature sensors face unprecedented challenges.

[0003] Specifically, because petrochemical media often contain salt and other easily crystallized substances, the surface of inserted temperature sensors is prone to salt and scale formation. These deposits not only affect the thermal conductivity of the inserted temperature sensors, leading to a gradual decrease in measurement accuracy, but in severe cases, they can also cause false temperature alarms, disrupting the temperature control strategies of normal production processes, and thus affecting product quality and production efficiency. To maintain the normal operation of the inserted temperature sensors, companies have to devote a large amount of manpower and regularly perform manual cleaning operations, which undoubtedly increases the labor intensity of workers, while also increasing production costs and safety risks.

[0004] Crucially, manual cleaning methods have numerous limitations. Firstly, the effectiveness of cleaning is often affected by the operator's skill level and work attitude, making it difficult to guarantee complete removal of salt scale every time. Secondly, frequent disassembly and installation can cause mechanical damage to the sensor, further reducing its service life. Furthermore, manual cleaning can cause production interruptions, impacting a company's ability to continue production and its market competitiveness.

[0005] In view of the above problems, how to conveniently and quickly clean the salt scale on the surface of the plug-in temperature sensor is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide an insertable temperature sensor cleaning device to solve the problems existing in the above-mentioned prior art. The telescopic device is used to drive the temperature sensor to move axially relative to the scraping device, and the scraping part can be used to clean the scale on the surface of the temperature sensor conveniently and quickly, reducing the demand for manpower.

[0007] To achieve the above purpose, the present invention provides the following solutions:

[0008] The utility model provides an inserted temperature sensor cleaning device, comprising a telescopic device and a scraping device for being installed on a supporting structure, the scraping device comprising a scraping portion and a supporting portion, the supporting portion being installed on the supporting structure, the scraping portion being connected to the supporting portion, the fixed end of the telescopic device being installed on the supporting structure, the movable end of the telescopic device being used to connect a temperature sensor, and the temperature sensor being used to pass through the scraping portion.

[0009] Preferably, the support structure includes a frame for being mounted on a platform, the fixed end is mounted on the frame, the frame is located on a side of the platform away from the measured medium, and the support portion is mounted on a side of the platform close to the measured medium.

[0010] Preferably, the maximum distance between the movable end and the scraping portion is greater than or equal to the length of the temperature sensor.

[0011] Preferably, the scraping portion is a copper sleeve, the temperature sensor is used to pass through the inner diameter side of the copper sleeve, and the gap between the inner diameter of the copper sleeve and the outer diameter of the temperature sensor is ≤2 mm.

[0012] Preferably, the support portion includes at least three fixed tie bars evenly distributed around the copper sleeve, one end of the fixed tie bar is fixedly connected to the copper sleeve, and the other end of the fixed tie bar is fixedly connected to the platform.

[0013] Preferably, it also includes a flushing device, which includes a water tank and a water pipe. The wall of the copper sleeve is provided with a water injection hole, the water inlet of the water pipe is connected to the water tank, and the water outlet of the water pipe is connected to the water injection hole.

[0014] Preferably, two or four water injection holes are evenly opened around the cylinder wall, and the water injection holes are inclined toward the temperature sensor.

[0015] Preferably, a nozzle is further included, the water pipe is provided with a branch pipe connected to the nozzle, and the nozzle faces the temperature sensor.

[0016] Preferably, the water tank includes a tank body, a water replenishing device connected to the tank body, and a water level monitoring device arranged in the tank body, the water level monitoring device is used to monitor the water level in the tank body, and the water replenishing device is used to replenish water to the tank body.

[0017] Preferably, it further comprises a temperature measuring device and a heating device, wherein the heating device is used to heat the water in the box, and the temperature measuring device is used to monitor the temperature of the water in the box.

[0018] Compared with the prior art, the utility model has achieved the following technical effects:

[0019] The utility model utilizes a supporting structure to fix the fixed end of the telescopic device and the supporting part of the scraping device. When the telescopic device drives the temperature sensor to move, the temperature sensor can be moved axially relative to the scraping part of the scraping device. Therefore, the scraping part can be used to conveniently and quickly clean the scale on the surface of the temperature sensor, and the working position of the temperature sensor can be quickly restored after the cleaning is completed, thereby reducing the demand for manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is the overall structural diagram of the utility model;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 A top view of the scraping device installation;

[0024] Figure 4 Install the scraping device side view;

[0025] Figure 5 This is a structural diagram of the scraping part;

[0026] Figure 6 Schematic diagram of the water tank;

[0027] Figure 7 This is the schematic diagram of the automatic water filling control for the water tank;

[0028] Figure 8 This is a schematic diagram of the timing state of the scraping process of the utility model;

[0029] Figure 9 This is the schematic diagram of the scraping control principle of the utility model;

[0030] Among them, 1. telescopic device; 11. fixed end; 12. movable end; 13. clamp; 2. scraping device; 21. scraping part; 22. supporting part; 3. platform; 4. frame; 5. flushing device; 51. water pipe; 52. nozzle; 521. bracket; 53. four-way; 54. water injection hole; 6. temperature sensor; 61. box; 62. water level monitoring device; 63. water supply device; 64. heating device; 65. temperature measuring device; 66. water supply solenoid valve; 67. water pump; 7. measuring medium; 8. clamp. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] The purpose of the utility model is to provide an insertable temperature sensor cleaning device to solve the problems existing in the prior art. The telescopic device is used to drive the temperature sensor to move axially relative to the scraping device, and the scraping part can be used to clean the scale on the surface of the temperature sensor conveniently and quickly, reducing the demand for manpower.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0034] like Figures 1 to 9 As shown, the present invention provides an insertable temperature sensor cleaning device, comprising a telescopic device 1 and a scraping device 2 for installation on a support structure, wherein the support structure is used to carry the telescopic device 1 and the scraping device 2, and the two are located outside the measuring medium 7. The outside here can be above the liquid level or outside the side wall of the tank / tank body. The support structure can be a frame 4, and the frame 4 can be installed on the platform 3 or directly connected to the tank / tank body. The scraping device 2 includes a scraping portion 21 and a supporting portion 22, and the supporting portion 22 is installed on the support structure. The scraping portion 21 is connected to the supporting portion 22, thereby, the scraping portion 21 is connected to the supporting structure through the supporting portion 22. The fixed end 11 of the telescopic device 1 is installed on the support structure, and the movable end 12 of the telescopic device 1 is used to connect to the temperature sensor 6 (the temperature sensor 6 includes a sensor body and a sleeve rod body provided on the outside). When connecting, a clamp 13 can be used. The clamp 13 can be a known clamping structure such as a C-type card or a buckle. The telescopic device 1 can be an electric telescopic cylinder (e.g., a screw-nut transmission), a pneumatic telescopic cylinder, or a hydraulic cylinder. The temperature sensor 6 is configured to penetrate a scraping portion 21, with a portion of the length penetrating the scraping portion 21 being immersed in the measurement medium 7. The scraping portion 21 can be an annular structure, a cylindrical structure, or a scraper structure. When the temperature sensor 6 and the scraping portion 21 move relative to each other, the scraping portion 21 can be used to clean scale such as salt scale from the surface of the temperature sensor 6.

[0035] The utility model utilizes a supporting structure to fix the fixed end 11 of the telescopic device 1 and the supporting portion 22 of the scraping device 2. When the telescopic device 1 drives the temperature sensor 6 to move, the temperature sensor 6 can be moved axially relative to the scraping portion 21 of the scraping device 2. Therefore, the scraping portion 21 can be used to conveniently and quickly clean the scale on the surface of the temperature sensor 6, and the working position of the temperature sensor 6 can be quickly restored after the cleaning is completed, thereby reducing the demand for manpower.

[0036] The support structure may include a frame 4 for mounting on the platform 3. The platform 3 referred to herein refers to a cover or grid mounted on top of a container containing the measuring medium 7. The fixed end 11 of the telescopic device 1 is mounted on the frame 4. The frame 4 may be a tripod, and the fixed end 11 is fixed to the top of the tripod via a clamp 8. The frame 4 is located on the side of the platform 3 away from the measuring medium 7, and the support portion 22 of the scraping device 2 is mounted on the side of the platform 3 close to the measuring medium 7. At this time, the telescopic device 1 and the scraping device 2 are respectively located on the upper and lower sides of the platform 3. Since the scraping device 2 is closer to the measuring medium 7, the requirements for the telescopic distance of the moving end 12 of the telescopic device 1 can be reduced. After the temperature sensor 6 is lifted out of the liquid surface of the measuring medium 7, it only needs to be moved a short distance to clean the intruding part of the temperature sensor 6.

[0037] To ensure effective cleaning of the portion of the temperature sensor 6 immersed in the measured medium 7, the maximum distance between the movable end 12 and the scraping portion 21 is greater than or equal to the length of the temperature sensor 6. Thus, when the movable end 12 moves the temperature sensor 6 to its highest position, the bottom of the temperature sensor 6 is within the scraping portion 21 or has already passed upward through the scraping portion 21, thereby fully cleaning the immersed portion of the temperature sensor 6. Due to the different lengths of the temperature sensor 6, the required travel of the movable end 12 also varies; for example, the travel of the movable end 12 is 0 to 1500 mm.

[0038] The scraping part 21 can be made of a copper sleeve, and the temperature sensor 6 is used to pass through the inner diameter side of the copper sleeve, and the gap between the inner diameter of the copper sleeve and the outer diameter of the temperature sensor 6 is ≤2mm. The outer diameter side of the temperature sensor 6 is covered with scale with a thickness of less than 2mm, which will not affect the normal working state of the temperature sensor 6. Considering that the rod of the temperature sensor 6 is relatively long and cannot always be kept absolutely centered during the movement, retaining a gap of less than 2mm can effectively prevent the scraping device 2 from causing damage to the temperature sensor 6. In addition, during the scraping process, the copper sleeve and the scale are in contact with each other and friction. If the gap is too small, the system operation stability will deteriorate, and even abnormal torque overload may occur, resulting in motor burning / frequent tripping. Therefore, it is best not to have direct contact between the copper sleeve and the temperature sensor 6.

[0039] The support portion 22 can be a rod-shaped support, a skeleton support or a cylindrical support, for example Figure 3 and Figure 4 As shown, the support portion 22 includes at least three fixed tie bars evenly distributed around the copper sleeve. Four are shown, but the specific number can be adjusted. One end of the fixed tie bar is fixedly connected to the copper sleeve, and the other end of the fixed tie bar is fixedly connected to the platform 3. The fixed tie bar suspends the copper sleeve below the platform 3, providing support for the copper sleeve. When the temperature sensor 6 is moved, the copper sleeve and the temperature sensor 6 can move relative to each other by virtue of the fixed copper sleeve.

[0040] Combine Figure 1 、 Figure 2 and Figure 5 As shown, it can also include a flushing device 5, which includes a water tank and a water pipe 51. A water injection hole 54 is opened on the wall of the copper sleeve, the water inlet of the water pipe 51 is connected to the water tank, and the water outlet of the water pipe 51 is connected to the water injection hole 54. The water tank is used to provide a water source for the water injection hole 54, which can flush the inner diameter side of the copper sleeve, assist the scraping process, reduce the scraping resistance, and improve the scraping efficiency.

[0041] In the specific embodiment, a copper sleeve is fixed to the support portion 22, and the temperature sensor 6 passes through the copper sleeve. The upward and downward movement of the temperature sensor 6 and the scraping pattern of the copper sleeve scrape the salt scale on the surface of the temperature sensor 6, thereby removing the salt scale on the surface to the greatest extent possible. At the same time, the water injection holes 54 distributed on the copper sleeve can also be passed through the hot water medium (provided by the water tank), providing a hot water medium flow outlet for the hot water to dissolve the salt and scrape and lubricate.

[0042] Furthermore, two or four water injection holes 54 can be evenly opened around the cylinder wall, and the water injection holes 54 are inclined toward the temperature sensor 6, so that the injected water flows along the outer wall of the temperature sensor 6, further improving the flushing effect.

[0043] The nozzle 52 can also be included. The nozzle 52 can be mounted on the support portion 22 via a bracket 521. The position and spray angle of the nozzle 52 can be fixed to better spray the nozzle 52 onto the scale on the surface of the temperature sensor 6, assisting in efficient cleaning. When connected, the water pipe 51 can be provided with a branch pipe connected to the nozzle 52. For example, a four-way pipe 53 can be used for connection. One of the four-way pipes 53 serves as a water inlet to connect to the water pipe 51. Two of the four-way pipes 53 serve as water outlets to connect to the two water injection holes 54. The fourth of the four-way pipes 53 serves as a water outlet to connect to the nozzle 52, and the nozzle 52 faces the temperature sensor 6.

[0044] Combine Figure 6As shown, the water tank includes a tank body 61, a water replenishment device 63 connected to the tank body 61, and a water level monitoring device 62 disposed within the tank body 61. The water replenishment device 63 can be connected to a water source such as tap water via a water replenishment solenoid valve 66. The water level monitoring device 62 monitors the water level within the tank body 61, specifically by utilizing an upper limit float switch and a lower limit float switch. The water replenishment device 63 replenishes water into the tank body 61. The water level monitoring device 62 monitors the water level. When the water level reaches the lower limit, the lower limit float switch sends a signal, which is transmitted via the control device to the water replenishment solenoid valve 66, opening the water replenishment solenoid valve 66 to replenish water into the tank body 61. When the water level reaches the upper limit, the upper limit float switch sends a signal, which is transmitted via the control device to the water replenishment solenoid valve 66, closing the water replenishment solenoid valve 66 and stopping water replenishment. Thus, the coordinated operation of the water replenishment device 63 and the water level monitoring device 62 ensures that the tank has a certain amount of water for flushing.

[0045] It can also include a temperature measuring device 65 and a heating device 64. The heating device 64 is used to heat the water in the box 61, and the temperature measuring device 65 is used to monitor the temperature of the water in the box 61. When the temperature measuring device 65 detects that the water temperature in the box 61 has reached the lower limit, the heating device 64 is started to heat the water; when the temperature measuring device 65 detects that the water temperature in the box 61 has reached the upper limit, the heating device 64 is turned off to stop heating the water. Thus, by using the coordinated work of the temperature measuring device 65 and the heating device 64, the flushing water in the water tank has a certain temperature. It should be noted that when the solution of the utility model is used to clean salt scale, using warm water with a certain temperature for flushing can improve the ability to dissolve salt scale and improve the ability to clean salt scale.

[0046] According to the aforementioned device, the application mode of the present utility model is as follows:

[0047] ① Install platform 3 above the measuring medium 7 in the tank / tank. Mount telescopic device 1 on platform 3. Secure temperature sensor 6 to the movable end 12 of telescopic device 1. Ensure the appropriate lifting speed and structural position. Assemble the copper sleeve of scraping device 2 and support 22. The expansion and contraction of telescopic device 1 drives temperature sensor 6, achieving automatic salt removal.

[0048] ② Equipped with flushing device 5 (water tank, water pump 67, control components, water pipe 51, etc.).

[0049] ③ Select and install components and perform wiring debugging according to the control schematic diagram of the control box.

[0050] ④ On-site debugging: Adjust the main parameters of the device according to the needs of the site: heating temperature, salt cleaning cycle, salt cleaning time, salt cleaning times, water tank safety water level, etc.

[0051] The operating principle of the flushing device 5 is as follows: the fresh water stored in the water tank is maintained at a temperature of approximately 50°C through the cooperation of the heating device 64 and the temperature measuring device 65. This warm water is then pressurized by the water pump 67 and automatically sprayed onto the temperature sensor 6 via the start / stop control of the flushing water solenoid valve. The flushing device 5 is interlocked with the travel switch of the telescopic device 1. When the scraping device 2 initiates the salt removal operation (temperature sensor 6 is in the raising or lowering process), the water pump 67 and the flushing water solenoid valve are activated synchronously, feeding warm water into the water pipe 51. A portion of this water is injected into the copper sleeve of the scraping device 2 through the water injection hole 54, dissolving the salt and providing lubrication. The remaining portion of the water is sprayed onto the temperature sensor 6 through the nozzle 52, dissolving the salt and initially removing salt scale. When a single salt removal operation is completed, the temperature sensor 6 descends to the measuring position, and the water pump 67 and the flushing water solenoid valve are simultaneously deactivated.

[0052] like Figure 7 and Figure 9 As shown, in order to realize the automatic control of the utility model, a control device can also be included, which mainly includes a main control module, a temperature control module, and an automatic water replenishment control module. Its operating principle is:

[0053] Main Control Module: Responsible for automatically starting and stopping the cleaning cycle. Components and Principle: A microcomputer-controlled timer is used to set the cleaning duration and cycle. This synchronizes the up and down movements of the telescopic device 1 (which can be a linear electric actuator), the water pump 67, and the flushing water solenoid valve. Cleaning is then carried out (the linear electric actuator has built-in limit switches. Up and down movements during the process are controlled by signals from the main control module. When the speed or limit is reached, the actuator automatically shuts off the power supply based on its own limit).

[0054] Temperature control module: responsible for constant temperature control of the water tank. Composition and working principle: Conventional thermal resistor is connected to the temperature controller, and the heater is automatically started and stopped according to the parameter settings and the real-time temperature feedback of the water tank. (The system is initially set to 50℃ PID constant temperature control)

[0055] Automatic water replenishment control module: Responsible for automatic water replenishment control of the water tank. Components and Operating Principle: The water tank uses dual float switches with upper and lower limits for automatic water replenishment control. In automatic mode, when the water level drops to the lower limit, the water replenishment device 63 automatically opens the water replenishment solenoid valve 66, allowing external tap water to enter the water tank for replenishment. When the water level reaches the upper limit, the water replenishment device 63 automatically closes the water replenishment solenoid valve 66, stopping water replenishment. In manual mode, water replenishment is manually controlled by the electric start / stop button.

[0056] Each control module is uniformly installed in the control box, including the wiring of the overall salt purification device control and the wiring arrangement of manual / automatic switching, status display, electrical and instrumentation.

[0057] The control scheme is:

[0058] Cleanup Control:

[0059] ① Local mode: manual on-site control, start and stop cleaning operations through the on-site control box.

[0060] ② Automatic mode: Set the cleaning cycle and cleaning time in the microcomputer control switch, and automatically start and stop the cleaning operation according to the preset parameter cycle.

[0061] Hydration control:

[0062] ① Manual mode: Manual on-site start and stop of water replenishment.

[0063] ② Automatic mode: Adjust the upper and lower limit float switch heights to automatically start and stop water replenishment operations (water replenishment starts automatically when the level is below the lower limit and stops automatically when the level is above the upper limit).

[0064] Temperature Control:

[0065] Preset parameter constant temperature control, set the required temperature on the temperature controller (the temperature controller has PID adjustment function to avoid the heating device 64 from frequently starting and stopping when the actual temperature is close to the preset temperature, affecting the stability of the system), and automatically start and stop the heating device 64 according to the real-time temperature feedback from the temperature measuring device 65 installed in the box 61 to ensure that the flushing water temperature meets the preset requirements.

[0066] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. An insertion temperature sensor cleaning device, characterized in that: It includes a telescopic device and a scraping device for installation on a supporting structure, the scraping device includes a scraping part and a supporting part, the supporting part is installed on the supporting structure, the scraping part is connected to the supporting part, the fixed end of the telescopic device is installed on the supporting structure, the movable end of the telescopic device is used to connect to a temperature sensor, and the temperature sensor is used to pass through the scraping part.

2. The insertion type temperature sensor cleaning device according to claim 1, characterized in that: The support structure includes a frame for being installed on a platform, the fixed end is installed on the frame, the frame is located on a side of the platform away from the measured medium, and the support part is installed on a side of the platform close to the measured medium.

3. The insertion type temperature sensor cleaning device according to claim 2, characterized in that: The maximum distance between the moving end and the scraping portion is greater than or equal to the length of the temperature sensor.

4. The insertion temperature sensor cleaning device according to claim 2, characterized in that: The scraping portion is a copper sleeve, and the temperature sensor is used to pass through the inner diameter side of the copper sleeve. The gap between the inner diameter of the copper sleeve and the outer diameter of the temperature sensor is ≤2mm.

5. The insertion type temperature sensor cleaning device according to claim 4, characterized in that: The support portion includes at least three fixed tie bars evenly distributed around the copper sleeve, one end of the fixed tie bar is fixedly connected to the copper sleeve, and the other end of the fixed tie bar is fixedly connected to the platform.

6. The insertion type temperature sensor cleaning device according to claim 4, characterized in that: It also includes a flushing device, which includes a water tank and a water pipe. The wall of the copper sleeve is provided with a water injection hole, the water inlet of the water pipe is connected to the water tank, and the water outlet of the water pipe is connected to the water injection hole.

7. The insertion type temperature sensor cleaning device according to claim 6, characterized in that: Two or four water injection holes are evenly arranged around the cylinder wall, and the water injection holes are inclined toward the temperature sensor.

8. The insertion type temperature sensor cleaning device according to claim 6, characterized in that: It also includes a nozzle, the water pipe is provided with a branch pipeline connected to the nozzle, and the nozzle faces the temperature sensor.

9. The insertion type temperature sensor cleaning device according to claim 6, characterized in that: The water tank includes a tank body, a water replenishing device connected to the tank body, and a water level monitoring device arranged in the tank body. The water level monitoring device is used to monitor the water level in the tank body, and the water replenishing device is used to replenish water to the tank body.

10. The insertion type temperature sensor cleaning device according to claim 9, characterized in that: It also includes a temperature measuring device and a heating device, wherein the heating device is used to heat the water in the box, and the temperature measuring device is used to monitor the temperature of the water in the box.

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