Liquid level detection device and normal-pressure high-temperature tank

Abstract

The utility model discloses a liquid level detection device and a normal-pressure high-temperature tank, and the device comprises a floating ball which is arranged in the normal-pressure high-temperature tank and floats on the liquid level in the normal-pressure high-temperature tank when liquid exists in the normal-pressure high-temperature tank; the detection channel is used for being arranged on the outer side of the normal-pressure high-temperature tank, and the axial direction of the detection channel is parallel to the vertical direction of the normal-pressure high-temperature tank; the calibration block is arranged in the detection channel and moves in the axial direction in the detection channel when the liquid level in the normal-pressure high-temperature tank changes; the detection mechanism is arranged below the calibration block; and the connecting rope is connected with the floating ball and the calibration block. The influence of high-temperature materials on the detection mechanism can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of liquid level detection, and particularly to a liquid level detection device and an atmospheric pressure high-temperature tank. Background Art

[0002] An atmospheric pressure high-temperature tank refers to a closed container for storing high-temperature liquid materials under atmospheric pressure. When detecting the liquid level of an atmospheric pressure high-temperature tank, there are mainly two detection methods: manual detection and radar level gauge detection.

[0003] Regarding manual detection, an opening is made at the bottom of the atmospheric pressure high-temperature tank, and a detection pipeline connecting to the atmospheric pressure high-temperature tank is installed. According to the principle of communicating vessels, the liquid level in the detection pipeline is equal to the liquid level in the atmospheric pressure high-temperature tank. By detecting the liquid level in the detection pipeline, the liquid level of the atmospheric pressure high-temperature tank can be obtained. However, the heat preservation performance of the detection pipeline is poor, and high-temperature materials are likely to solidify into block scars on the inner wall of the detection pipeline, affecting the accuracy of liquid level detection.

[0004] For radar level gauge detection, the radar level gauge is installed at the top of the inner wall of the atmospheric pressure high-temperature tank, and the liquid level can be continuously detected. However, when the temperature of the high-temperature material is relatively high, the plastic parts and electronic devices of the radar level gauge are easily damaged. Utility Model Content

[0005] Embodiments of this application provide a liquid level detection device and an atmospheric pressure high-temperature tank, reducing the influence of high-temperature materials on the detection mechanism.

[0006] Other features and advantages of this application will become apparent through the following detailed description, or be partially learned through the practice of this application.

[0007] According to the first aspect of the embodiments of this application, a liquid level detection device is provided, including:

[0008] A floating ball, configured to be arranged in the atmospheric pressure high-temperature tank. When there is liquid in the atmospheric pressure high-temperature tank, the floating ball floats on the liquid surface in the atmospheric pressure high-temperature tank;

[0009] A detection channel, configured to be arranged outside the atmospheric pressure high-temperature tank, and its axis is parallel to the up-and-down direction of the atmospheric pressure high-temperature tank;

[0010] A calibration block, arranged in the detection channel, and moves axially in the detection channel when the liquid level in the atmospheric pressure high-temperature tank changes;

[0011] A detection mechanism, arranged below the calibration block;

[0012] A connecting rope, connecting the floating ball and the calibration block.

[0013] In some embodiments of the present application, based on the foregoing solution, the gravity of the calibration block is greater than a preset gravity and less than the difference between the gravity of the floating ball and the target buoyancy, where the target buoyancy is the buoyancy received by the floating ball in the liquid in the atmospheric pressure and high temperature tank.

[0014] In some embodiments of the present application, based on the foregoing solution, the calibration block is slidably connected to the inner wall of the detection channel.

[0015] In some embodiments of the present application, based on the foregoing solution, the calibration block is in sliding contact with the inner wall of the detection channel or the calibration block is connected to the inner wall of the detection channel through a guiding component, and the guiding direction of the guiding component is the axial direction of the detection channel.

[0016] In some embodiments of the present application, based on the foregoing solution, the guiding component includes:

[0017] A guiding groove provided on the inner wall of the detection channel, and the guiding direction is the axial direction of the detection channel;

[0018] A guiding block connected to the calibration block, and the guiding block is slidably connected to the guiding groove.

[0019] In some embodiments of the present application, based on the foregoing solution, it further includes:

[0020] A fixed pulley provided at the upper end of the atmospheric pressure and high temperature tank, and the connecting rope bypasses the pulley groove of the fixed pulley.

[0021] In some embodiments of the present application, based on the foregoing solution, the detection mechanism is a radar level gauge.

[0022] According to the second aspect of the present application, there is provided an atmospheric pressure and high temperature tank, including a tank body and a liquid level detection device according to any one of the embodiments of the first aspect of the present application.

[0023] In some embodiments of the present application, based on the foregoing solution, the tank body and the detection channel are connected through a connecting member.

[0024] In some embodiments of the present application, based on the foregoing solution, a first hole for the floating ball to pass through is provided at the top of the tank body, a cover plate covering the first hole is provided on the first hole, and a second hole for the connecting rope to pass through is provided on the cover plate.

[0025] In some embodiments of the present application, based on the foregoing solution, the connecting member includes at least one connecting rod, one end of the connecting rod is connected to the outer wall of the tank body, and the other end is connected to the outer wall of the detection channel.

[0026] The beneficial effects of the present application are as follows:

[0027] The detection mechanism is installed outside the atmospheric pressure high-temperature tank. By detecting the position of the calibration block, the liquid level of the normal temperature high-pressure tank is indirectly detected. The detection mechanism does not directly contact the steam of the high-temperature material, reducing the influence of the high-temperature material on the detection mechanism.

[0028] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. Brief Description of the Drawings

[0029] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments consistent with this application, and are used together with the specification to explain the principles of this application. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the drawings:

[0030] Figure 1 Shows a schematic diagram of manual detection of the atmospheric pressure high-temperature tank;

[0031] Figure 2 Shows a schematic diagram of radar level gauge detection of the atmospheric pressure high-temperature tank;

[0032] Figure 3 Shows a schematic diagram of a liquid level detection device in an embodiment of this application. Detailed Description of the Embodiments

[0033] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0034] In addition, the described features, structures or characteristics can be combined in any suitable way in one or more embodiments. In the following description, many specific details are provided to give a full understanding of the embodiments of this application. However, those skilled in the art will realize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0035] The block diagrams shown in the drawings are only functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0036] The flowcharts shown in the drawings are only exemplary descriptions, and do not necessarily include all the contents and operations / steps, nor are they necessarily executed in the described order. For example, some operations / steps can be decomposed, while some operations / steps can be combined or partially combined, so the actual execution order may change according to the actual situation.

[0037] In the description of this application, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0038] For a better understanding of the embodiments of this application, Figure 1 A schematic diagram showing the manual detection of the atmospheric pressure high-temperature tank is shown, Figure 2 A schematic diagram showing the detection of the radar level gauge of the atmospheric pressure high-temperature tank is shown. Refer to Figure 1 and Figure 2 , and the liquid level detection methods of the existing atmospheric pressure high-temperature tank are described as follows:

[0039] Figure 1 In [reference], 1 is the atmospheric pressure high-temperature tank, 2 is the detection pipeline, the detection pipeline is arranged outside the atmospheric pressure high-temperature tank, the lower end of the detection pipeline is connected to the atmospheric pressure high-temperature tank, according to the principle of communicating vessels, the liquid level of the detection pipeline is equal to the liquid level of the atmospheric pressure high-temperature tank, the liquid level of the detection pipeline is detected, for example, by a float level detection, the liquid level of the detection pipeline is obtained, and the liquid level of the detection pipeline is used as the liquid level of the atmospheric pressure high-temperature tank. The heat preservation performance of the detection pipeline is poor. Especially when the ambient temperature is low, high-temperature materials are likely to form scars on the inner wall of the detection channel, affecting the accuracy of liquid level detection. Figure 2 In [reference], 1 is the atmospheric pressure high-temperature tank, 3 is the radar level gauge, the radar level gauge is arranged at the top of the inner wall of the atmospheric pressure high-temperature tank. When using the radar level gauge to detect the liquid level, the steam formed by the high-temperature materials is likely to damage the plastic components and electronic devices of the radar level gauge, affecting the normal detection work of the radar level gauge.

[0040] Figure 3 A schematic diagram showing a liquid level detection device in the embodiments of this application is shown, Figure 3Among them, 1 is an atmospheric pressure and high-temperature tank, 4 is a floating ball, 5 is a connecting rope, 6 is a fixed pulley, 7 is a detection channel, 8 is a calibration block, 9 is a detection mechanism, see Figure 3 , a liquid level detection device is provided, which at least includes a floating ball, a detection channel, a calibration block, a detection mechanism and a connecting rope, and is introduced in detail as follows:

[0041] The floating ball 4 is used to be arranged in the atmospheric pressure and high-temperature tank 1. When there is liquid in the atmospheric pressure and high-temperature tank 1, the floating ball 4 floats on the liquid surface in the atmospheric pressure and high-temperature tank 1. The density of the floating ball 4 is less than the density of the liquid in the atmospheric pressure and high-temperature tank 1, so that the floating ball 4 floats on the liquid surface.

[0042] In some embodiments, the floating ball 4 is made of a high-temperature resistant material. The floating ball 4 can be made of stainless steel material, such as 304, 316, 316L stainless steel.

[0043] The detection channel 7 is arranged outside the atmospheric pressure and high-temperature tank 1, and its axis is parallel to the up and down direction of the atmospheric pressure and high-temperature tank 1.

[0044] In some embodiments, the detection channel 7 can be a hollow cylinder or a hollow cuboid.

[0045] The calibration block 8 is arranged in the detection channel 7 and is used to move axially in the detection channel 7.

[0046] In some embodiments, the gravity of the calibration block 8 is greater than a preset gravity and less than the difference between the gravity of the floating ball 4 and the target buoyancy force, where the target buoyancy force is the buoyancy force received by the floating ball 4 in the liquid in the atmospheric pressure and high-temperature tank 1. The gravity of the calibration block 8 is greater than the preset gravity, so that the calibration block 8 tightens the connecting rope 5. If the connecting rope 5 is relatively loose, it is easy to cause problems in the liquid level detection result; the gravity of the calibration block 8 is less than the difference between the gravity of the floating ball 4 and the target buoyancy force, so that the floating ball 4 is not pulled away from the liquid in the atmospheric pressure and high-temperature tank 1 where the floating ball 4 is located.

[0047] The detection mechanism 9 is arranged below the calibration block 8 and is used to detect the position of the calibration block 8;

[0048] The connecting rope 5 connects the floating ball 4 and the calibration block 8.

[0049] In some embodiments, the connecting rope 5 can be a steel wire rope.

[0050] When there is no high-temperature material stored in the atmospheric pressure high-temperature tank 1, that is, when the liquid level is zero, the detection mechanism 9 detects the position of the calibration block 8 to determine the initial position. When the liquid level in the atmospheric pressure high-temperature tank 1 is not zero, the detection mechanism 9 detects the position of the calibration block 8 to determine the real-time position. The change value of the distance between the initial position and the real-time position is the liquid level of the atmospheric pressure high-temperature tank 1.

[0051] In some embodiments, both ends of the detection channel 7 in the axial direction are located between the upper and lower ends of the atmospheric pressure high-temperature tank 1.

[0052] In some embodiments, the calibration block 8 is slidably connected to the inner wall of the detection channel 7.

[0053] In some embodiments, the calibration block 8 is in sliding contact with the inner wall of the detection channel 7 or the calibration block 8 is connected to the inner wall of the detection channel 7 through a guiding component, and the guiding direction of the guiding component is the axial direction of the detection channel 7.

[0054] In some embodiments, the guiding component includes: a guiding groove provided on the inner wall of the detection channel 7 with the guiding direction being the axial direction of the detection channel 7; a guiding block connected to the calibration block 8, and the guiding block is slidably connected to the guiding groove.

[0055] In some embodiments, it further includes: a fixed pulley 6 provided at the upper end of the atmospheric pressure high-temperature tank 1, and the connecting rope 5 bypasses the pulley groove of the fixed pulley 6.

[0056] In some embodiments, the number of the fixed pulleys 6 is at least one. When the number of the fixed pulleys 6 is two, the connecting rope 5 sequentially passes through the pulley grooves of the two fixed pulleys 6.

[0057] In some embodiments, the detection mechanism 9 is a radar level gauge.

[0058] In some embodiments, a bottom plate is provided at the lower end of the detection channel 7, and the detection mechanism 9 is provided at the lower end or the upper end of the bottom plate.

[0059] In some embodiments, when the detection mechanism 9 is a radar level gauge and the detection mechanism 9 is provided at the lower end of the bottom plate, the bottom plate is made of a colorless transparent material, such as glass.

[0060] According to the second aspect of the present application, there is provided an atmospheric pressure high-temperature tank, including a tank body and a liquid level detection device according to any one of the embodiments of the first aspect of the present application. The tank body can be understood as the atmospheric pressure high-temperature tank according to any one of the embodiments of the first aspect of the present application, that is Figure 3 the 1 in

[0061] In some embodiments, the tank body and the detection channel are connected through a connecting member.

[0062] In some embodiments, a first hole for the float ball to pass through is provided at the top of the tank body. A cover plate covering the first hole is provided on the first hole, and a second hole for the connecting rope to pass through is provided on the cover plate. The outer diameter of the first hole may be slightly larger than the outer diameter of the float ball so that the float ball can pass through the first hole, and the outer diameter of the second hole may be slightly larger than the outer diameter of the connecting rope so that the connecting rope can pass through the second hole.

[0063] In some embodiments, the first hole is a stepped hole with a larger upper part and a smaller lower part. The cover plate matches the large-diameter part of the first hole, and the float ball matches the small-diameter part of the first hole. When placing the float ball, remove the cover plate, put the float ball into the normal-pressure high-temperature tank from the small-diameter part of the first hole, and then place the cover plate on the large-diameter part of the first hole. The cover plate and the large-diameter part of the first hole can be connected by bolts or can be in contact connection.

[0064] In some embodiments, the connecting member includes at least one connecting rod, one end of the connecting rod is connected to the outer wall of the tank body, and the other end is connected to the outer wall of the detection channel.

[0065] In the present application, the detection mechanism is installed outside the normal-pressure high-temperature tank. By detecting the position of the detection calibration block, the liquid level of the normal-temperature high-pressure tank is indirectly detected. The detection mechanism does not directly contact the steam of the high-temperature material, reducing the influence of the high-temperature material on the detection mechanism.

[0066] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted via a computer-readable medium as one or more instructions or codes. Other examples and implementations are within the scope and spirit of the present application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination of these. In addition, each functional unit may be integrated in one processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0067] In several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the division of the units can be a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of units or modules can be in an electrical or other form.

[0068] The units described as separate components may or may not be physically separated. The components serving as control devices may or may not be physical units, that is, they can be located in one place or distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0069] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The foregoing storage medium includes: USB flash drives, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), mobile hard disks, magnetic disks, or optical discs and other various media that can store program codes.

[0070] The above are only the embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

1. A liquid level detection device, characterized in that: Comprising: A floating ball, which is used to be arranged in an atmospheric pressure high-temperature tank. When there is liquid in the atmospheric pressure high-temperature tank, the floating ball floats on the liquid surface in the atmospheric pressure high-temperature tank; A detection channel, which is used to be arranged outside the atmospheric pressure high-temperature tank, and its axis is parallel to the up-and-down direction of the atmospheric pressure high-temperature tank; A calibration block, which is arranged in the detection channel and moves axially in the detection channel when the liquid level in the atmospheric pressure high-temperature tank changes; A detection mechanism, which is arranged below the calibration block; A connecting rope, which connects the floating ball and the calibration block.

2. The liquid level detection device according to claim 1, wherein: The gravity of the calibration block is greater than a preset gravity and less than the difference between the gravity of the floating ball and the target buoyancy, where the target buoyancy is the buoyancy received by the floating ball in the liquid in the atmospheric pressure high-temperature tank.

3. A liquid level detection device according to claim 1, characterized in that: The calibration block is slidably connected to the inner wall of the detection channel.

4. The liquid level detection device according to claim 3, wherein: The calibration block is in sliding contact with the inner wall of the detection channel or the calibration block is connected to the inner wall of the detection channel through a guiding component, and the guiding direction of the guiding component is the axial direction of the detection channel.

5. A liquid level detection device according to claim 4, characterized in that: The guiding component includes: A guiding groove, which is arranged on the inner wall of the detection channel, and the guiding direction is the axial direction of the detection channel; A guiding block, which is connected to the calibration block, and the guiding block is slidably connected to the guiding groove.

6. The liquid level detection device according to claim 1, characterized in that: Further comprising: A fixed pulley, which is arranged at the upper end of the atmospheric pressure high-temperature tank, and the connecting rope bypasses the pulley groove of the fixed pulley.

7. A liquid level detection device according to claim 1, characterized in that: The detection mechanism is a radar level gauge.

8. An atmospheric pressure high-temperature tank, characterized in that: Comprising a tank body and a liquid level detection device according to any one of claims 1-7.

9. The atmospheric pressure high-temperature tank according to claim 8, wherein: The tank body and the detection channel are connected through a connecting piece.

10. A normal-pressure high-temperature tank according to claim 8, characterized in that: A first hole for the floating ball to pass through is arranged at the top of the tank body, a cover plate covering the first hole is arranged on the first hole, and a second hole for the connecting rope to pass through is arranged on the cover plate.

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