Liquid level meter protection device and liquid level meter

Abstract

The utility model relates to the technical field of liquidometers, in particular to a liquidometer protection device and a liquidometer, the liquidometer protection device comprises a protection body and a pressure monitoring assembly, the protection body comprises a first protection pipe, a second protection pipe and a blocking plate, one end of the blocking plate is connected with the first protection pipe in a sealing mode, and the other end of the blocking plate is connected with the pressure monitoring assembly. The other end of the barrier plate is in sealed connection with the second protection pipe to seal and isolate the first protection pipe and the second protection pipe, the end, away from the barrier plate, of the first protection pipe is suitable for being connected with a liquid level meter, and the end, away from the barrier plate, of the second protection pipe is suitable for being connected with a to-be-detected device; one end of the detection pipe is connected with the first protection pipe so that the pressure in the detection pipe can be the same as the pressure in the first protection pipe, the other end of the detection pipe is suitable for being connected with a pressure transmitter so that the pressure in the detection pipe can be monitored, the baffle can be monitored, and the reliability of the liquid level meter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level gauges, in particular to a liquid level gauge protection device and a liquid level gauge. Background Art

[0002] In the oxygen pressure leaching wet smelting process, the material in the autoclave is a high-temperature corrosive liquid. The autoclave is a major hazard source. Once leaked, it is easy to cause major safety accidents such as casualties. During the production process, the autoclave needs to maintain a stable liquid level. The stability of the liquid level of the autoclave has a great influence on the output and leaching rate. The stable liquid level value of the autoclave is not only to maintain the smooth progress of the process production, but also an important parameter to ensure safe production. In the related technology, when a non-contact liquid level gauge is used to detect the liquid level in the autoclave, a barrier plate is set between the liquid level gauge and the high-temperature corrosive liquid in the autoclave to prevent the liquid level gauge from being directly exposed above the high-temperature corrosive liquid. However, the barrier plate is prone to wear under the high pressure of the autoclave and the high-temperature corrosive environment of the high-temperature corrosive liquid, which reduces the reliability of the liquid level gauge. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the embodiment of the utility model provides a liquid level meter protection device, which can monitor the baffle plate and improve the reliability of the liquid level meter.

[0004] The embodiment of the utility model also provides a liquid level meter.

[0005] The liquid level gauge protection device of the embodiment of the utility model comprises: a protection body, the protection body comprises a first protection tube, a second protection tube and a baffle plate, one end of the baffle plate is sealedly connected to the first protection tube, the other end of the baffle plate is sealedly connected to the second protection tube to seal and isolate the first protection tube and the second protection tube, the end of the first protection tube away from the baffle plate is suitable for being connected to the liquid level gauge, and the end of the second protection tube away from the baffle plate is suitable for being connected to a device to be tested; a pressure monitoring assembly, the pressure monitoring assembly comprises a detection tube, one end of the detection tube is connected to the first protection tube so that the pressure in the detection tube is the same as the pressure in the first protection tube, and the other end of the detection tube is suitable for being connected to a pressure transmitter so as to monitor the pressure in the detection tube.

[0006] The liquid level gauge protection device of the embodiment of the utility model can monitor the baffle plate and improve the reliability of the liquid level gauge.

[0007] In some embodiments, the liquid level gauge protection device also includes a connecting assembly, the connecting assembly includes a first connecting flange and a second connecting flange, the first connecting flange is connected to an end of the first protection tube away from the liquid level gauge, the second connecting flange is connected to an end of the second protection tube away from the device to be tested, the first connecting flange and the second connecting flange are detachably connected, and the blocking plate is arranged between the first connecting flange and the second connecting flange.

[0008] In some embodiments, the liquid level gauge protection device further includes a sealing gasket, which is disposed between the first connecting flange and the baffle plate.

[0009] In some embodiments, a first through hole is disposed on the first protection tube, and the first through hole connects the first protection tube and the detection tube.

[0010] In some embodiments, the size of the first through hole is A, the radial size of the detection tube is B, and 0.4×B≤A≤0.7×B.

[0011] In some embodiments, the blocking plate is an inclined blocking plate, and the inclined blocking plate is installed obliquely relative to a plane perpendicular to the axis of the protective body.

[0012] In some embodiments, the first connecting flange and the second connecting flange are arranged tilted, the first connecting flange and the second connecting flange have the same tilt angle, and the first connecting flange and the blocking plate have the same tilt angle.

[0013] In some embodiments, the pressure monitoring assembly further includes a third connecting flange, and the third connecting flange is connected to an end of the detection tube away from the first protective tube.

[0014] In some embodiments, the liquid level gauge protection device also includes a fourth connecting flange, which is connected to one end of the first protection tube away from the baffle plate; and / or, the liquid level gauge protection device also includes a fifth connecting flange, which is connected to one end of the second protection tube away from the baffle plate.

[0015] The liquid level meter of the embodiment of the utility model includes the liquid level meter protection device described above.

[0016] The liquid level meter of the embodiment of the utility model can improve the reliability of the liquid level meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a liquid level gauge protection device according to an embodiment of the utility model.

[0018] Reference numerals:

[0019] Liquid level meter 100, sixth connecting flange 110,

[0020] Protection body 1, first protection tube 11, first through hole 111, second protection tube 12, baffle plate 13,

[0021] Pressure monitoring assembly 2, detection tube 21, third connecting flange 22,

[0022] Connecting assembly 3, first connecting flange 31, second connecting flange 32, connecting piece 33,

[0023] Sealing gasket 4, fourth connecting flange 5, fifth connecting flange 6. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0025] The liquid level gauge protection device of the embodiment of the utility model includes a protection body 1 and a pressure monitoring assembly 2. The protection body 1 includes a first protection tube 11, a second protection tube 12 and a baffle plate 13, one end of the baffle plate 13 is sealed and connected to the first protection tube 11, and the other end of the baffle plate 13 is sealed and connected to the second protection tube 12 to seal and isolate the first protection tube 11 and the second protection tube 12, one end of the first protection tube 11 away from the baffle plate 13 is suitable for being connected to the liquid level gauge 100, and one end of the second protection tube 12 away from the baffle plate 13 is suitable for being connected to the device to be tested. The pressure monitoring assembly 2 includes a detection tube 21, one end of the detection tube 21 is connected to the first protection tube 11 so that the pressure in the detection tube 21 is the same as the pressure in the first protection tube 11, and the other end of the detection tube 21 is suitable for being connected to a pressure transmitter to monitor the pressure in the detection tube 21.

[0026] Specifically, Figure 1 As shown, the first protection tube 11 and the second protection tube 12 are arranged at intervals in the up-down direction, the first protection tube 11 and the second protection tube 12 are arranged coaxially, the first protection tube 11 and the second protection tube 12 are cavities penetrating from top to bottom, so that the signal emitted by the liquid level meter 100 can pass through, the upper end of the first protection tube 11 is connected to the liquid level meter 100, the lower end of the second protection tube 12 is connected to the device to be measured, the upper end of the blocking plate 13 is connected to the lower end of the first protection tube 11 to seal the lower end of the first protection tube 11, and the lower end of the blocking plate 13 is connected to the upper end of the second protection tube 12 to seal the upper end of the second protection tube 12, and the first protection tube 11 and the second protection tube 12 are blocked by the blocking plate 13 to avoid gas exchange between the first protection tube 11 and the second protection tube 12.

[0027] The right end of the detection tube 21 is connected to the left end of the first protection tube 11, and the left end of the detection tube 21 is connected to the pressure transmitter. The pressure transmitter monitors the pressure in the detection tube 21 in real time. The first protection tube 11 and the second protection tube 12 are sealed. The pressure in the first protection tube 11 is atmospheric pressure. The connection between the detection tube 21 and the first protection tube 11 makes the pressure in the detection tube 21 also atmospheric pressure. The pressure of the detection tube 21 is monitored in real time by the pressure transmitter, and the pressure in the first protection tube 11 is detected in real time. When the pressure monitored by the pressure transmitter changes, it means that the baffle plate 13 is loose, and the gas in the second protection tube 12 flows into the first protection tube 11, and the baffle plate 13 needs to be repaired.

[0028] If the baffle plate 13 is worn, the baffle plate 13 is replaced to prevent the baffle plate 13 from breaking and falling into the autoclave, and correspondingly prevent the liquid in the autoclave from directly contacting the liquid level meter 100, thereby affecting the measurement accuracy and service life of the liquid level meter 100. If the connection between the baffle plate 13 and the first protection tube 11 and the second protection tube 12 is loose, the connection between the baffle plate 13 and the first protection tube 11 and the second protection tube 12 is tightened.

[0029] The blocking plate 13 can block the high-temperature corrosive liquid in the autoclave in the second protection tube 12. The sealed connection between the first protection tube 11 and the second protection tube 12 prevents the high-temperature corrosive liquid from entering the first protection tube 11, thereby preventing the high-temperature corrosive liquid from directly contacting the liquid level meter 100, thereby protecting the liquid level meter 100. When the liquid level meter 100 measures the liquid in the autoclave, the signal wave emitted by the liquid level meter 100 sequentially passes through the first protection tube 11, the blocking plate 13, and the second protection tube 12, contacts the liquid surface in the autoclave, and then reflects back to the liquid level meter 100, thereby realizing non-contact measurement of the liquid level in the autoclave.

[0030] For example, the liquid level meter 100 is a high-frequency, high-power radar level meter. The baffle plate 13 is made of insulating glass or other materials that can ensure high radar throughput. When the baffle plate 13 is insulating glass, the material of the baffle plate 13 is alumina. When the baffle plate 13 is glass, the glass surface will soften at high temperatures and be easily rubbed. In addition, in a high-pressure environment, the pressure on the glass surface will also increase, resulting in increased wear. In a high-temperature and high-pressure environment, the glass will experience varying degrees of wear such as cracks and breakage.

[0031] The autoclave is a high-pressure environment, and the liquid in the autoclave is a high-temperature corrosive liquid. The baffle plate 13 is more susceptible to wear in a high-temperature, high-pressure and corrosive environment, and the state of the baffle plate 13 needs to be monitored in real time to avoid cracks or ruptures in the baffle plate 13. The embodiment of the utility model monitors the pressure in the detection tube 21 in real time through the pressure transmitter, thereby realizing real-time monitoring of the pressure in the first protection tube 11. When the pressure in the first protection tube 11 changes, it means that the state of the baffle plate 13 is abnormal, so that the gas in the second protection tube 12 enters the first protection tube 11, and the pressure transmitter prompts an abnormality, which requires maintenance.

[0032] The embodiment of the utility model monitors the pressure in the first protection tube 11 in real time through the pressure transmitter. When the pressure in the first protection tube 11 changes, it indicates that there is an abnormality in the state of the baffle plate 13, and the baffle plate 13 can be repaired in time. By associating the pressure in the first protection tube 11 with the state of the baffle plate 13, the normal operation of the baffle plate 13 is ensured, and direct contact between the high-pressure liquid and the liquid level meter 100 is avoided, thereby improving the reliability of the liquid level meter 100.

[0033] In some embodiments, the liquid level gauge protection device also includes a connecting assembly 3, the connecting assembly 3 includes a first connecting flange 31 and a second connecting flange 32, the first connecting flange 31 is connected to the end of the first protection tube 11 away from the liquid level gauge 100, the second connecting flange 32 is connected to the end of the second protection tube 12 away from the device to be tested, the first connecting flange 31 and the second connecting flange 32 are detachably connected, and the blocking plate 13 is arranged between the first connecting flange 31 and the second connecting flange 32.

[0034] Specifically, the first connecting flange 31 is connected to the lower end of the first protective tube 11, the second connecting flange 32 is connected to the upper end of the second protective tube 12, the baffle plate 13 is located between the first connecting flange 31 and the second connecting flange 32, the first connecting flange 31 and the second connecting flange 32 are detachably connected, and the baffle plate 13 is fixed between the first protective tube 11 and the second protective tube 12 by the arrangement of the first connecting flange 31 and the second connecting flange 32, thereby isolating the liquid level meter 100 from the medium in the autoclave.

[0035] For example, a first connecting hole is provided on the first connecting flange 31, and a second connecting hole corresponding to the first connecting hole is provided on the second connecting flange 32. The connecting member 33 passes through the first connecting hole and the second connecting hole in sequence to connect the first connecting flange 31 and the second connecting flange 32. The connecting member 33 is a bolt.

[0036] In some embodiments, the liquid level gauge protection device further includes a sealing gasket 4 , which is disposed between the first connecting flange 31 and the baffle plate 13 .

[0037] Specifically, the upper end of the sealing gasket 4 abuts against the lower end of the first connecting flange 31 , and the lower end of the sealing gasket 4 is connected to the upper end of the blocking plate 13 . The provision of the sealing gasket 4 improves the sealing performance between the second protection tube 12 and the first protection tube 11 .

[0038] It is understandable that the sealing gasket 4 and the baffle plate 13 are made of materials that are resistant to high pressure, high temperature and corrosion. For example, the baffle plate 13 is made of glass, which can operate stably for a long time at 230°C and 3.8MPa, and the glass is locked and pressure-bearing through the first connecting flange 31, the second connecting flange 32 and the sealing gasket 4 to ensure the stable operation of the baffle plate 13. At the same time, the pressure in the first protective tube 11 is monitored in real time to improve the reliability and safety of the protective device.

[0039] In some embodiments, a first through hole 111 is disposed on the first protection tube 11 , and the first through hole 111 communicates with the first protection tube 11 and the detection tube 21 .

[0040] Specifically, a first through hole 111 is provided on the left side of the first protective tube 11, and the detection tube 21 is provided on the left side of the first protective tube 11. The first through hole 111 connects the first protective tube 11 with the detection tube 21, thereby realizing the connection between the detection tube 21 and the first protective tube 11, so that the pressure between the detection tube 21 and the first protective tube 11 is the same, thereby facilitating the pressure transmitter to monitor the pressure in the first protective tube 11 through the detection tube 21.

[0041] In some embodiments, the size of the first through hole 111 is A, the radial size of the detection tube 21 is B, and 0.4×B≤A≤0.7×B.

[0042] Specifically, Figure 1 As shown, the size of the first through hole 111 in the up and down direction is A, and the size of the detection tube 21 in the up and down direction is B. When the size of the first through hole 111 is larger than 0.7×B, it is not convenient to weld the detection tube 21 to the first protective tube 11. When the size of the second through hole is smaller than 0.4×B, it is not convenient to drill the first protective tube 11. By limiting the size of the first through hole 111, the connection between the first protective tube 11 and the detection tube 21 is facilitated while maintaining the same pressure.

[0043] In some embodiments, the blocking plate 13 is an inclined blocking plate 13 , and the inclined blocking plate 13 is installed tilted relative to a plane perpendicular to the axis of the protective body 1 .

[0044] Specifically, the right end of the baffle plate 13 is tilted higher than the left end, so that after the vaporized gas in the autoclave condenses on the baffle plate 13, the liquid droplets condensed on the lower end of the baffle plate 13 can flow from the right end to the left end of the baffle plate 13 and fall back into the autoclave, facilitating the sliding of the liquid droplets.

[0045] For example, the angle between the blocking plate 13 and the horizontal plane may be 30°, 45°, or 60°.

[0046] In some embodiments, the first connecting flange 31 and the second connecting flange 32 are arranged tilted, the first connecting flange 31 and the second connecting flange 32 have the same tilt angle, and the first connecting flange 31 and the blocking plate 13 have the same tilt angle.

[0047] Specifically, the first connecting flange 31 and the second connecting flange 32 are also arranged to be inclined, and the inclination angles of the first connecting flange 31, the second connecting flange 32 and the blocking plate 13 are set to be the same, so as to fix the upper and lower ends of the inclined blocking plate 13 respectively.

[0048] In some embodiments, the pressure monitoring assembly 2 further includes a third connecting flange 22 , and the third connecting flange 22 is connected to an end of the detection tube 21 away from the first protection tube 11 .

[0049] Specifically, the third connecting flange 22 is arranged on the left side of the detection tube 21. The arrangement of the third connecting flange 22 facilitates the connection between the detection tube 21 and the pressure transmitter, thereby facilitating the pressure transmitter to monitor the pressure in the first protection tube 11, thereby improving assembly efficiency.

[0050] For example, the third connection flange 22 is connected to the left end of the detection tube 21 by welding, and the right end of the detection tube 21 is connected to the first protection tube 11 by welding.

[0051] In some embodiments, the liquid level gauge protection device also includes a fourth connecting flange 5, which is connected to one end of the first protection tube 11 away from the baffle plate 13; and / or, the liquid level gauge protection device also includes a fifth connecting flange 6, which is connected to one end of the second protection tube 12 away from the baffle plate 13.

[0052] Specifically, Figure 1 As shown, a fourth connecting flange 5 is provided at the upper end of the first protective tube 11. The provision of the fourth connecting flange 5 facilitates the quick connection between the first protective tube 11 and the liquid level gauge 100. Correspondingly, a sixth connecting flange 110 cooperating with the fourth connecting flange 5 is also provided on the liquid level gauge 100. The detachable connection between the fourth connecting flange 5 and the sixth connecting flange 110 realizes the detachable connection between the first protective tube 11 and the liquid level gauge 100.

[0053] A fifth connecting flange 6 is provided at the lower end of the second protection tube 12. The fifth connecting flange 6 facilitates the convenient connection between the second protection tube 12 and the autoclave. The second protection tube 12 is connected to the second connecting flange 32 and the fifth protection flange by welding.

[0054] The liquid level meter 100 of the embodiment of the utility model includes the liquid level meter protection device of the above embodiment.

[0055] The liquid level meter 100 of the embodiment of the utility model isolates and protects the liquid level meter 100 and the device to be tested through the liquid level meter protection device in the above embodiment, and monitors the pressure in the first protection tube 11 in real time through the pressure monitoring component 2, so as to monitor the state of the baffle 13 between the first protection tube 11 and the second protection tube 12, so that the liquid level meter 100 can be used in harsh working conditions. Compared with the method of measuring by using a contact liquid level meter 100 in the related art, the liquid level meter 100 of the embodiment of the utility model uses a non-contact liquid level meter measurement method to reduce the disadvantage of inaccurate measurement caused by medium adhesion in contact measurement, solves the problem of placing the contact instrument mounting parts in a high temperature, high pressure and highly corrosive environment, and avoids the safety risks caused by stirring in the device to be tested. The pressure monitoring component 2 is set to monitor the state of the protection component, thereby improving the reliability and safety of the liquid level meter 100.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] It is understandable that the above embodiments are exemplary and cannot be construed as limiting the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A liquid level gauge protection device, characterized in that: include: A protection body, the protection body comprising a first protection tube, a second protection tube and a baffle plate, one end of the baffle plate is sealed and connected to the first protection tube, the other end of the baffle plate is sealed and connected to the second protection tube to seal and isolate the first protection tube and the second protection tube, one end of the first protection tube away from the baffle plate is suitable for connecting to a liquid level meter, and one end of the second protection tube away from the baffle plate is suitable for connecting to a device to be tested; A pressure monitoring assembly, the pressure monitoring assembly includes a detection tube, one end of the detection tube is connected to the first protective tube so that the pressure in the detection tube is the same as the pressure in the first protective tube, and the other end of the detection tube is suitable for connecting to a pressure transmitter to monitor the pressure in the detection tube.

2. The liquid level gauge protection device according to claim 1, characterized in that: It also includes a connecting assembly, which includes a first connecting flange and a second connecting flange, the first connecting flange is connected to an end of the first protective tube away from the liquid level meter, the second connecting flange is connected to an end of the second protective tube away from the device to be tested, the first connecting flange and the second connecting flange are detachably connected, and the blocking plate is arranged between the first connecting flange and the second connecting flange.

3. The liquid level gauge protection device according to claim 2, characterized in that: It also includes a sealing gasket, which is arranged between the first connecting flange and the blocking plate.

4. The liquid level gauge protection device according to claim 1, characterized in that: The first protection tube is provided with a first through hole, and the first through hole communicates with the first protection tube and the detection tube.

5. The liquid level gauge protection device according to claim 4, characterized in that: The size of the first through hole is A, the radial size of the detection tube is B, and 0.4×B≤A≤0.7×B.

6. The liquid level gauge protection device according to claim 2, characterized in that: The blocking plate is an inclined blocking plate, and the inclined blocking plate is installed obliquely relative to a plane perpendicular to the axis of the protection body.

7. The liquid level gauge protection device according to claim 6, characterized in that: The first connecting flange and the second connecting flange are arranged tilted, the first connecting flange and the second connecting flange have the same tilt angle, and the first connecting flange and the blocking plate have the same tilt angle.

8. The liquid level gauge protection device according to claim 1, characterized in that: The pressure monitoring assembly further includes a third connecting flange, and the third connecting flange is connected to an end of the detection tube away from the first protection tube.

9. The liquid level gauge protection device according to claim 2, characterized in that: The liquid level gauge protection device further comprises a fourth connecting flange, wherein the fourth connecting flange is connected to an end of the first protection tube away from the baffle plate; and / or, The liquid level gauge protection device further includes a fifth connecting flange, and the fifth connecting flange is connected to an end of the second protection tube away from the baffle plate.

10. A liquid level meter, characterized in that: The liquid level gauge protection device comprises the liquid level gauge protection device as described in any one of claims 1 to 9.

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