A temperature measuring device for evaporation salt production effect

Abstract

The present invention belongs to the technical field of evaporative salt production, and particularly relates to a device for measuring the temperature of an evaporative salt production effect, comprising a sleeve and a mounting seat, wherein a temperature sensor is provided in the sleeve and an outer wall thereof is provided with an external thread, wherein the mounting seat is fixed to the outer wall of the salt production effect and an inner wall thereof is provided with an internal thread, wherein the internal thread cooperates with the external thread and forms a dynamic sealing structure with salt particles entering the thread cooperation gap; the temperature sensor of the present invention can follow the sleeve out of the effect during washing to avoid collision with fallen salt blocks, and the dynamic sealing structure has a long service life.

Description

Technical Field

[0001] The invention belongs to the technical field of evaporation salt production, and in particular relates to a device for measuring the temperature of an evaporation salt production effect body. Background Art

[0002] At present, the evaporation salt production process is mainly used in the rock salt production process. The refined brine flows in each effect body and evaporates successively. The temperature of the liquid in the effect body is a very critical process indicator.

[0003] Currently, the primary method for measuring evaporating salt solutions is to use armored temperature sensors with sleeves inserted into the body of the salt production process. However, in actual production, the salt production process requires frequent cleaning, which involves flushing the inner wall of the body with clean water to prevent excessive salt buildup on the inner wall, which would otherwise affect evaporation. However, during this cleaning process, salt clumps attached to the inner wall of the body tend to fall off. Some salt clumps weigh as much as 50 to 60 kilograms, and these clumps can bend or break the temperature sensor sleeve inserted into the body, causing inaccurate temperature measurements and even leading to large-scale leakage of salt solution, resulting in production accidents.

[0004] To ensure the seal at the temperature sensor installation site, static sealing is the best sealing method. However, if the temperature sensor is removed from the effect body to avoid being hit by salt blocks (the salt solution remains stored inside the effect body during cleaning), the salt solution will spray out of the installation port, causing a large amount of salt solution to leak out. Dynamic sealing can achieve the temperature sensor's removal from the effect body. Rubber-based sealing structures are the most commonly used sealing structure in dynamic seals. However, due to the highly corrosive nature of salt solutions, the high temperature characteristics of evaporation salt production, and the low-temperature precipitation of crystallized salt particles, these can severely damage the sealing structure of dynamic seals, leading to premature failure and large-scale leakage. The vehicle must be stopped to release the salt solution and then replace it, which is very cumbersome and time-consuming. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for measuring the temperature of an evaporative salt production effect, so as to solve the problem in the prior art that the rubber-based dynamic sealing structure cannot achieve a long-term dynamic seal for the salt solution. To achieve the above object, the present invention solves the problem through the following technical solutions:

[0006] The present invention provides a device for measuring the temperature of an evaporative salt-making effect, comprising a sleeve and a mounting seat. The sleeve is provided with a temperature sensor and its outer wall is provided with an external thread. The mounting seat is fixed to the outer wall of the salt-making effect and its interior is provided with an internal thread. The internal thread cooperates with the external thread and forms a dynamic sealing structure with salt particles entering the thread matching gap.

[0007] As a further technical solution, an open groove is provided in the mounting seat at the bottom away from the internal thread at one end of the salt-making effect body.

[0008] As a further technical solution, the threads of the sleeve and the mounting seat are fine-pitch threads.

[0009] As a further technical solution, the sleeve and the mounting seat are both made of titanium alloy.

[0010] As a further technical solution, the sleeve is connected to the salt-making effect body by threaded fitting, and the threaded fitting is fine pitch.

[0011] As a further technical solution, a driving mechanism is further included, and the driving mechanism drives the sleeve to rotate.

[0012] As a further technical solution, the driving mechanism includes a driving and an actuator, the actuator is threadedly engaged with the sleeve, and under the action of the driving, the actuator rotates in situ to drive the sleeve.

[0013] As a further technical solution, a control system is also included for controlling the temperature sensor to follow the casing into or out of the salt-making effect body and monitoring the measured value of the temperature sensor.

[0014] As a further technical solution, the temperature sensor is connected to a spiral signal line.

[0015] As a further technical solution, a rubber sealing ring is provided between the mounting seat and the outer wall of the salt-making effect body.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) The present invention provides a sleeve with a temperature sensor, which is threadedly matched with a mounting seat fixed to the outer wall of the salt-making effect. The sleeve forms a dynamic sealing structure with salt particles formed at low temperature by the salt solution entering the thread fitting gap. This is equivalent to the salt particles filling the thread fitting gap. The dynamic sealing structure formed has good sealing performance and can be used for a long time. In addition, when washing the effect, the temperature sensor can follow the sleeve out of the effect body to avoid collision with fallen salt blocks, thereby preventing the collision of fallen salt blocks with the temperature sensor and extending the service life of the temperature sensor.

[0018] (2) The present invention provides an open groove at the bottom of the internal thread away from one end of the salt-making effect body in the mounting seat, so that the internal salt solution or salt particles can be discharged from the fitting gap through the open groove, which is beneficial to extend the thread length in the mounting seat, provide support for the stable rotation of the sleeve, and reduce the driving resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which form part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their description are provided to illustrate the present invention and are not intended to limit the present invention. It should also be understood that these drawings are shown for simplicity and clarity and are not necessarily drawn to scale. The present invention will now be described and explained with additional specificity and detail through the use of the accompanying drawings, in which:

[0020] Figure 1 It shows a schematic structural diagram of a device for measuring the temperature of a salt evaporation effect provided by an embodiment of the present invention;

[0021] Figure 2 A schematic structural diagram of a mounting base provided by an embodiment of the present invention is shown.

[0022] In the figure: 1. Mounting base; 2. Temperature sensor; 3. Casing; 4. External thread; 5. Actuator; 6. Signal line; 7. Salt production effect; 8. Control system; 9. Opening slot; 10. Internal thread. DETAILED DESCRIPTION

[0023] The technical solutions in typical embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] As described in the background technology, the salt-making effect body needs to be washed frequently to prevent the salt from accumulating too thickly on the inner wall of the salt-making effect, which affects the evaporation effect. However, every time the effect is washed, the salt blocks that fall off the salt-making effect body will bend or break the temperature sensor sleeve inserted into the effect body, resulting in a decrease in the temperature measurement accuracy.

[0025] Due to the highly corrosive nature of salt solutions, the high temperatures encountered during evaporation and the low-temperature precipitation of crystallized salt particles, static sealing is the best method for ensuring tightness at the temperature sensor installation site. Existing dynamic seals typically utilize rubber sealing rings. The highly corrosive nature of salt solutions can corrode these rings, and the high-temperature salt solution encountered during evaporation can also soak them for extended periods. Furthermore, crystallized salt particles precipitated at low temperatures can invade these rings, impacting the sealing surface through sliding friction. This combination of adverse effects accelerates the aging of the sealing rings, shortening their service life. Replacement requires stopping the vehicle to drain the salt solution and then replacing them, a cumbersome and time-consuming process.

[0026] To this end, technicians can only abandon the dynamic sealing method and adopt the method of setting a protective cover above the temperature sensor to prevent it from being hit. However, the setting of the protective cover will also cause disturbances that affect the salt production process.

[0027] In order to solve the above problems, this embodiment provides a device for measuring the temperature of the evaporation salt effect body. Figure 1 and Figure 2As shown, it includes a sleeve 3 and a mounting seat 1. A temperature sensor 2 is provided in the sleeve 3 and an external thread 4 is provided on its outer wall. The mounting seat 1 is fixed to the outer wall of the salt-making effect body 7 and an internal thread 10 is provided inside it. The internal thread 10 cooperates with the external thread 4 and forms a dynamic sealing structure with the salt particles entering the thread matching gap.

[0028] It's important to note that in existing technology, threaded connections primarily serve transmission and connection purposes. Because of the minute clearance between threads, even when used for sealing, these are typically static seals, requiring sealant or plastic wrapping to ensure a tight seal. They cannot be used for dynamic sealing.

[0029] The purpose of achieving dynamic sealing is to drive the sleeve 3 so that the temperature sensor 2 follows the sleeve 3 into the salt-making effect body 7 to detect the temperature, or exit the salt-making effect body 7 to avoid falling salt blocks.

[0030] During the sealing process, the salt solution will enter the fitting gap between the internal thread 10 and the external thread 4. Since the fitting gap is outside the salt-making effect body 7 and the temperature is low, the flow rate of the salt solution in the fitting gap is very slow and it will crystallize into smaller salt particles, gradually filling the fitting gap between the internal thread 10 and the external thread 4, forming a good dynamic sealing structure.

[0031] Since the temperature sensor 2 is relatively fragile, the sleeve 3 essentially provides a carrier for the movement of the temperature sensor 2 and protects the temperature sensor 2 from damage during the movement. The sleeve 3 of this embodiment is a tube that encloses the temperature sensor 2 within the sleeve 3.

[0032] This technical solution changes the sleeve 3 with the temperature sensor 2 therein to a movable one; when the effect is not washed, the movement of the sleeve 3 can enable the temperature sensor 2 to follow the sleeve 3 into the interior of the salt-making effect body 7 to detect the temperature. When the effect is washed, the temperature sensor 2 follows the sleeve 3 out of the interior of the salt-making effect body 7 to avoid collision with fallen salt blocks, thereby preventing the fallen salt blocks from colliding with the temperature sensor 2 and extending the service life of the temperature sensor 2.

[0033] Since the wall of the salt-making effect body 7 is relatively thin, it is difficult to set a dynamic sealing structure with good performance. The purpose of setting the mounting seat 1 is to provide space for the installation of the dynamic sealing structure.

[0034] The sleeve 3 is threadedly matched with the mounting seat 1, which not only realizes dynamic sealing through thread matching, but also allows the temperature sensor 2 to follow the sleeve 3 into or out of the salt production effect body 7 by screwing the sleeve 3. In addition, the driving force can be reduced by advancing and retreating the thread, and both manual and automatic driving can be easily realized.

[0035] It should be noted that the threaded dynamic seal in this technical solution is not an absolute seal and there may be slight leakage, but the leakage amount is very small and can be accepted by technical personnel.

[0036] In order to realize the rotation of the sleeve 3, since the rear end is provided with a signal line, it is necessary to provide the power of rotation from the side. Therefore, it is possible to apply a radial force to the sleeve 3, thereby increasing the fitting clearance on one side and reducing the fitting clearance on the other side, reducing the sealing effect. For this purpose, the mounting seat 1 and the internal internal thread 10 can be extended. However, after the extension, the extended part only plays a supporting role and does not need to participate in the sealing. However, the fitting clearance of the extended part will also form crystallized salt particles, which will increase the resistance of the rotating sleeve 3. For this reason, an open groove 9 is opened at the bottom of the internal thread 10 at one end of the mounting seat 1 away from the salt-making effect body 7. The salt solution or salt particles that enter can be discharged out of the fitting clearance through the open groove 9 along the fitting clearance of the extended part thread, thereby reducing friction.

[0037] In this embodiment, the sleeve 3 and the mounting seat 1 are both made of titanium alloy. Titanium alloy has excellent corrosion resistance and high strength, and is very suitable for harsh working environments.

[0038] In order to increase the sealing performance, the threads of the sleeve 3 and the mounting seat 1 are fine threads, and the specifications of the fine threads should be selected according to actual needs.

[0039] In order to further improve the dynamic sealing performance, the sleeve 3 is provided with a threaded connection with the salt-making effect body 7, and the thread is a fine pitch thread.

[0040] In order to increase the sealing performance of the mounting seat 1 itself, a rubber sealing ring is provided between the mounting seat 1 and the outer wall of the salt-making effect body 7 .

[0041] In this embodiment, the temperature sensor 2 can be a conventional thermal resistor, and the specific installation method of the temperature sensor 2 and the casing is not further described here. The temperature sensor 2 is connected to a spiral signal line 6. As the casing 3 rotates, the signal line 6 also rotates. To avoid damage caused by excessive twisting of the signal line, the signal line 6 is configured in a spiral shape. This can reduce the twisting and damage caused by the rotation of the signal line.

[0042] The temperature measuring device further comprises a driving mechanism, which drives the sleeve 3 to rotate. The driving mechanism adopts an automated means and can be operated remotely, thereby reducing manual participation and improving efficiency.

[0043] The driving mechanism includes a drive and an actuator 5. The actuator 5 is threadedly matched with the sleeve 3. Under the action of the drive, the actuator 5 rotates the sleeve 3 in situ. The drive can be a motor or other drive. The specific implementation method and structure belong to the existing technology and will not be repeated here.

[0044] The temperature measuring device further includes a control system 8 for controlling the temperature sensor 2 to follow the casing 3 into or out of the salt production body 7 and monitoring the measured value of the temperature sensor 2. In this embodiment, the control system adopts a commonly used DCS control system.

[0045] Although the present invention has been disclosed above in terms of preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the scope of protection of the technical solutions of the present invention.

Claims

1. A device for measuring the temperature of an evaporative salt production effect, characterized in that: It includes a sleeve and a mounting seat, wherein a temperature sensor is provided in the sleeve and an outer wall of the sleeve is provided with an external thread, and the mounting seat is fixed to the outer wall of the salt production effect and has an internal thread inside. The internal thread cooperates with the external thread and forms a dynamic sealing structure with salt particles entering the thread matching gap; The salt solution flows very slowly in the fitting gap and will crystallize to form smaller salt particles, which gradually fill the fitting gap between the internal and external threads to form a good dynamic sealing structure.

2. The device for measuring the temperature of an evaporative salt production effect according to claim 1, wherein: An open groove is provided in the bottom of the mounting seat away from the internal thread at one end of the salt-making effect body.

3. The device for measuring the temperature of an evaporative salt production effect according to claim 1, wherein: The threads of the sleeve and the mounting seat are matched with fine threads.

4. The device for measuring temperature of an evaporative salt production effect according to claim 1, wherein: The sleeve and the mounting seat are both made of titanium alloy.

5. The device for measuring temperature of an evaporative salt production effect according to claim 1, characterized in that: The sleeve is connected to the salt-making effect body by threaded fit, and the threaded fit is fine pitch.

6. The device for measuring temperature of an evaporative salt production effect according to claim 1, characterized in that: Also included is a driving mechanism, which drives the sleeve to rotate.

7. The device for measuring the temperature of an evaporative salt production effect according to claim 6, characterized in that: The driving mechanism includes a driving member and an actuator. The actuator is threadedly matched with the sleeve. Under the action of the driving member, the actuator rotates in situ to drive the sleeve.

8. The device for measuring temperature of an evaporative salt production effect according to claim 7, characterized in that: It also includes a control system for controlling the temperature sensor to follow the casing into or out of the salt-making effect body and monitoring the measured value of the temperature sensor.

9. The device for measuring temperature of an evaporative salt production effect according to claim 1, characterized in that: The temperature sensor is connected with a spiral signal line.

10. The device for measuring temperature of an evaporative salt production effect according to claim 1, characterized in that: A rubber sealing ring is provided between the mounting seat and the outer wall of the salt-making effect body.

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