Density floater of liquid level instrument
By integrating a pressure sensor and an airbag control system into the level gauge, the problem of unstable level measurement in liquids of different densities is solved, achieving stable level measurement and reducing equipment costs.
Patent Information
- Application Number
- CN202520451076.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing liquid level measuring devices are unstable in liquids of different densities and require additional density measuring instruments, which increases equipment costs and space requirements.
A pressure sensor is used to monitor changes in the buoyancy of the float. Combined with a density sensor and an air bladder, the inflation and deflation of the air bladder are automatically controlled to maintain stable buoyancy of the float in liquids of different densities. The liquid level is monitored by a level gauge.
It enables stable liquid level measurement in liquids of different densities, reduces equipment costs and space occupation, and improves the stability and service life of the float.
Smart Images
Figure CN223756127U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid level measuring equipment technical field, concretely relates to a liquid level gauge density float. BACKGROUND
[0002] The liquid level gauge is a kind of instrument for measuring and monitoring the liquid level height in container, is widely used in petroleum, chemical industry, water conservancy, food and other industries.
[0003] In the related liquid level gauge measurement liquid height in tank, will be by putting float in tank, by the suspension height of float and then measure the liquid level height in tank.
[0004] At present, most liquid level measuring devices can only realize single measurement of liquid level, if liquid density data is to be obtained, density measuring instrument needs to be installed separately, which undoubtedly increases equipment purchase cost and equipment installation space, and the float of the current liquid level detection device can be used in the same density liquid mostly, when the density of liquid changes, the buoyancy of float will be affected, in turn makes the data of measurement deviation, reduces the stability of float when working, to solve the above problems, present a kind of liquid level gauge density float to solve the above problems. UTILITARIAN CONTENT
[0005] Therefore, the utility model provides a kind of liquid level gauge density float, the utility model changes through pressure sensor monitoring the buoyancy of float, measures liquid density through density sensor, makes the inflation and deflation of gasbag, when liquid density increases and makes buoyancy increase, gasbag deflates and reduces the volume of float and thereby reduces buoyancy;When liquid density decreases, gasbag inflates and increases the buoyancy of float, and then ensure that float can keep at suitable liquid level height in different density liquid, thereby reduce purchase cost, also reduce the space of equipment installation, improve the stability of float when working.
[0006] To solve the above technical problems, the utility model provides a kind of liquid level gauge density float, including the float of the setting in tank body, the liquid level gauge of the setting in the top of tank body, the magnetic flap measuring scale of the setting in the lateral wall of tank body, the hollow design in the float, the gasbag of the setting in the float, the inflatable hose of the sealed setting of the gasbag through the top of float, the inflatable machine of the gas inlet end of inflatable hose is provided with, the sealed detection bin of the setting of the outside of float, density sensor is provided with in one end of sealed detection bin, temperature sensor is provided with in the other end of sealed detection bin, density sensor and temperature sensor are all with liquid level gauge wireless connection.
[0007] The float is oval, and the seal detection bin comprises a hollow ring connected to the middle part of the float, the hollow ring is used for connecting and fixing the sub-bin body with the float, and a sub-bin body is symmetrically arranged on the left and right sides of the hollow ring, a density sensor is arranged in one side of the sub-bin body, the density sensor is used for detecting the density of the liquid in which the float is located, and a temperature sensor is arranged in the other side of the sub-bin body, and the temperature sensor is used for detecting the stability of the liquid in which the float is located.
[0008] A plurality of first guide vanes are arranged on the surface of the hollow ring, the first guide vanes are used for making the liquid flow around the surface of the hollow ring, so that the hollow ring and the float can stably float in the liquid.
[0009] A plurality of second guide vanes are arranged on the upper and lower ends of the float, the size of the first guide vanes is greater than that of the second guide vanes, the second guide vanes are used for making the liquid flow around the surface of the float, so that the float can more stably float in the liquid, and the second guide vanes are also used for preventing the float from colliding with the tank wall, thereby improving the service life of the component.
[0010] A pressure sensor is arranged in the air bag, the pressure sensor is used for monitoring the change of the buoyancy of the float in real time, and automatically controlling the inflation and deflation of the air bag according to the liquid density detected by the density sensor; when the liquid density increases to cause the buoyancy of the float to increase, the pressure sensor triggers the air bag to deflate to reduce the total volume of the float and thereby reduce the buoyancy; on the contrary, when the liquid density decreases, the air bag inflates to increase the volume of the float and thereby increase the buoyancy, so as to ensure that the float can always maintain at a suitable liquid level in different density liquids, and the pressure sensor is wirelessly connected with the liquid level instrument.
[0011] The liquid level instrument is connected with the tank body through a flange, the liquid level instrument is provided with a connecting block on the side close to the magnetic flap measuring scale, the connecting block is used for connecting the liquid level instrument with the magnetic flap measuring scale, so that the magnetic flap in the magnetic flap measuring scale can follow the magnetic induction strip to detect the liquid level of the float, the connecting block is magnetically connected with the magnetic flap measuring scale, and the hollow ring is provided with a magnetic induction strip on the top, the magnetic induction strip is used for generating magnetic coupling with the magnetic flap measuring scale, so that the flap in the magnetic flap measuring scale can follow the change of the magnetic field to turn over.
[0012] A sealing ring is arranged at the position where the float top penetrates through the inflation hose, the sealing ring is used for reinforcing the penetration between the inflation hose and the top of the float, the inner ring of the sealing ring is hot melt connected with the inflation hose, and the outer ring of the sealing ring is hot melt connected with the float.
[0013] Compared with the prior art, the application has at least one of the following beneficial technical effects:
[0014] 1. By monitoring the changes in buoyancy experienced by the float through a pressure sensor and measuring the liquid density through a density sensor, the system automatically controls the inflation and deflation of the air bladder. When the liquid density increases, causing the float's buoyancy to increase, the pressure sensor triggers the air bladder to deflate, reducing the float's total volume and thus decreasing buoyancy. Conversely, when the liquid density decreases, the air bladder inflates, increasing the float's volume and enhancing buoyancy. This ensures that the float can always maintain a suitable liquid level in liquids of different densities, thereby reducing purchase costs, minimizing equipment installation space, and improving the float's stability during operation.
[0015] 2. The first guide vane is used to make the liquid flow around the surface of the hollow ring, so that the hollow ring and the float can float stably in the liquid. The second guide vane is used to make the liquid flow around the surface of the float, so that the float can float more stably in the liquid. It is also used to prevent the float from colliding with the tank wall, thereby improving the service life of the components.
[0016] 3. The sealing ring is used to reinforce and seal the connection between the inflation hose and the top of the float, thereby preventing water leakage at the connection between the airbag and the inflation hose. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the assembly structure of this utility model;
[0019] Figure 3 This utility model Figure 2 A magnified view of part A;
[0020] Figure 4 This is a side sectional view of the present invention;
[0021] Figure 5 This utility model Figure 4 A magnified view of part B.
[0022] Explanation of reference numerals in the attached drawings: 100, tank body; 101, float; 102, level gauge; 103, magnetic flip measuring ruler; 200, airbag; 201, inflation hose; 202, sealing ring; 203, inflation machine; 204, pressure sensor; 300, sealing detection chamber; 301, density sensor; 302, temperature sensor; 303, hollow ring; 304, secondary chamber; 400, first guide vane; 401, second guide vane; 500, flange; 501, connecting block; 502, magnetic induction strip. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figures 1-5The technical solutions of the embodiments of the present application are clearly and completely described.
[0024] As shown in Figures 1-5 : the embodiment provides a liquid level meter density float, which comprises a float 101 arranged in a tank body 100, the float 101 can be made of corrosion-resistant materials such as stainless steel, the top of the tank body 100 is provided with a liquid level meter 102, the liquid level meter 102 is used for displaying the liquid level, density, temperature and other values of the liquid, a magnetic flap measuring scale 103 is arranged on the side wall of the tank body 100, the magnetic flap measuring scale 103 can intuitively observe the liquid level height, the float 101 is designed to be hollow, the float 101 is provided with an air bag 200, the air bag 200 is made of rubber material with high flexibility and sealing performance, the air bag 200 is sealingly provided with an inflation hose 201 through the top of the float 101, one end of the inflation hose 201 is hot melt connected with the air bag 200, the air inlet end of the inflation hose 201 is provided with an inflator 203, the other end of the inflation hose 201 is sealingly connected with the inflator 203 through threads, the float 101 is externally provided with a sealing detection bin 300, the sealing detection bin 300 is used for mounting a density sensor 301 and a temperature sensor 302, one end of the sealing detection bin 300 is provided with the density sensor 301, the other end of the sealing detection bin 300 is provided with the temperature sensor 302, the density sensor 301 and the temperature sensor 302 are wirelessly connected with the liquid level meter 102.
[0025] In use, the change of the buoyancy of the float 101 is monitored through the pressure sensor 204, and the inflation and deflation of the air bag 200 are automatically controlled according to the liquid density measured by the density sensor 301, when the liquid density increases to cause the increase of the buoyancy of the float 101, the pressure sensor 204 triggers the deflation of the air bag 200 to reduce the total volume of the float 101, so as to reduce the buoyancy, on the contrary, when the liquid density decreases, the air bag 200 is inflated to increase the volume of the float 101 to improve the buoyancy, thereby ensuring that the float 101 can always maintain at a suitable liquid level height in different density liquids.
[0026] The embodiment provides a liquid level meter density float,
[0027] As shown in Figure 2 , 3, 4, 5: the float 101 is oval, the sealing detection bin 300 includes a hollow ring 303 connected with the middle part of the float 101, the hollow ring 303 is integrally connected and fixed with the outer wall of the middle part of the float 101, the hollow ring 303 is used for connecting and fixing the auxiliary bin body 304 with the float 101, the left and right sides of the hollow ring 303 are symmetrically and communicatively provided with an auxiliary bin body 304, the auxiliary bin body 304 is integrally connected with the hollow ring 303, the probe of the density sensor 301 penetrates into the liquid through the auxiliary bin body 304, and the penetration position is sealed, the probe of the temperature sensor 302 penetrates into the liquid through the auxiliary bin body 304, and the penetration position is sealed, the density sensor 301 is arranged in one side of the auxiliary bin body 304, the density sensor 301 is used for detecting the density of the liquid in which the float 101 is located, the temperature sensor 302 is arranged in the other side of the auxiliary bin body 304, and the temperature sensor 302 is used for detecting the stability of the liquid in which the float 101 is located, and the weight of the installation area of the temperature sensor 302 and the installation area of the density sensor 301 needs to be consistent, and when the weight is inconsistent, the weight material can be supplemented.
[0028] Effects: the hollow ring 303 is used for connecting and fixing the auxiliary bin body 304 with the float 101, the auxiliary bin body 304 is used for installing the temperature sensor 302 and the density sensor 301, so that the temperature sensor 302 and the density sensor 301 are fixed and supported, the density sensor 301 is used for detecting the density of the liquid in which the float 101 is located, and the temperature sensor 302 is used for detecting the stability of the liquid in which the float 101 is located, so that the real-time data of the liquid in the tank is measured.
[0029] As shown in Figure 2 , 3 : the surface of the hollow ring 303 is provided with a plurality of first flow guides 400, the first flow guides 400 and the outer surface of the hollow ring 303 can be integrally connected, the first flow guides 400 are used for making the liquid flow around the surface of the hollow ring 303, so that the hollow ring 303 and the float 101 can stably float in the liquid, a plurality of second flow guides 401 are arranged at the upper and lower ends of the float 101, the second flow guides 401 are arranged on the surface of the float 101 except the outer surface of the hollow ring 303, the second flow guides 401 and the surface of the float 101 can be integrally connected, the size of the first flow guides 400 is greater than that of the second flow guides 401, the second flow guides 401 are used for making the liquid flow around the surface of the float 101, so that the float 101 can more stably float in the liquid, and are also used for preventing the float 101 from colliding with the tank wall, so that the service life of the components is improved.
[0030] The effect is that the first guide vane 400 is used for making the liquid flow around the surface of the hollow ring 303, so that the hollow ring 303 and the float 101 can stably float in the liquid, the second guide vane 401 is used for making the liquid flow around the surface of the float 101, so that the float 101 can more stably float in the liquid, and is also used for preventing the float 101 from colliding with the tank wall, thereby improving the service life of the component.
[0031] As shown in Figure 4 , 5 : the air bag 200 is provided with a pressure sensor 204, the air bag 200 can adopt a rubber material with strong flexibility and sealing performance, the pressure sensor 204 is bonded and connected with the inner wall of the air bag 200 through glue, the pressure sensor 204 has wireless transmission capability, the pressure sensor 204 is used for monitoring the change of the buoyancy of the float 101 in real time, and automatically controls the inflation and deflation of the air bag 200 according to the liquid density measured by the density sensor 301; when the liquid density increases to cause the buoyancy of the float 101 to increase, the pressure sensor 204 triggers the air bag 200 to deflate to reduce the total volume of the float 101 and thus reduce the buoyancy; on the contrary, when the liquid density decreases, the air bag 200 inflates to increase the volume of the float 101 and thus increase the buoyancy, so as to ensure that the float 101 can always be kept at a suitable liquid level in different density liquids, and the pressure sensor 204 is wirelessly connected with the liquid level meter 102.
[0032] The effect is that the pressure sensor 204 is used for monitoring the change of the buoyancy of the float 101 in real time, and automatically controls the inflation and deflation of the air bag 200 according to the liquid density measured by the density sensor 301; when the liquid density increases to cause the buoyancy of the float 101 to increase, the pressure sensor 204 triggers the air bag 200 to deflate to reduce the total volume of the float 101 and thus reduce the buoyancy; on the contrary, when the liquid density decreases, the air bag 200 inflates to increase the volume of the float 101 and thus increase the buoyancy, so as to ensure that the float 101 can always be kept at a suitable liquid level in different density liquids.
[0033] As shown in Figure 1 , 2As shown in Figure 4: The level gauge 102 is connected to the tank 100 via a flange 500. A protective tube is installed at the bottom of the flange 500, passing through the top of the tank 100 and extending into the interior of the tank 100 for connecting to the inflation hose 201. A connecting block 501 is installed on the side of the level gauge 102 near the magnetic scale 103. One end of the connecting block 501 is detachably connected to the level gauge 102, and the other end of the connecting block 501 is bolted to the outer casing of the magnetic scale 103. The connecting block 501 is used to connect the level gauge 102 to the magnetic flip measuring ruler 103. The connecting block 501 is magnetically connected to the magnetic flip measuring ruler 103. A magnetic induction strip 502 is provided on the top of the hollow ring 303. The magnetic induction strip 502 is embedded in the top of the hollow ring 303 and the embedded part is coated with glue to strengthen the connection. The magnetic induction strip 502 is used to generate magnetic coupling with the magnetic flip measuring ruler 103, so that the flip plate inside the magnetic flip measuring ruler 103 can follow the change of magnetic field and flip over.
[0034] Its effect is as follows: the connecting block 501 is used to connect the liquid level gauge 102 to the magnetic flip measuring ruler 103, and the magnetic induction strip 502 is used to generate magnetic coupling with the magnetic flip measuring ruler 103, so that the flip plate inside the magnetic flip measuring ruler 103 can follow the magnetic field change and flip over, thereby observing the liquid level height.
[0035] like Figure 1 , 2 As shown in Figures 4 and 5: A sealing ring 202 is provided at the top of the float 101 where it passes through the inflation hose 201. The sealing ring 202 is used to reinforce and seal the penetration point between the inflation hose 201 and the top of the float 101. The inner ring of the sealing ring 202 is heat-fused to the inflation hose 201, and the outer ring of the sealing ring 202 is heat-fused to the float 101.
[0036] Working principle: The pressure sensor 204 monitors the change in buoyancy of the float 101, and the density sensor 301 measures the liquid density. The inflation and deflation of the air bag 200 by the air inflator 203 is automatically controlled. When the liquid density increases, causing the buoyancy of the float 101 to increase, the pressure sensor 204 triggers the air bag 200 to deflate, reducing the total volume of the float 101 and thus reducing the buoyancy. Conversely, when the liquid density decreases, the air bag 200 inflates, increasing the volume of the float 101 and increasing the buoyancy. This ensures that the float 101 can always maintain a suitable liquid level in liquids of different densities, thereby reducing purchase costs, reducing the space required for equipment installation, and improving the stability of the float 101 during operation.
[0037] In addition, it needs to be explained that, in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0038] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles described in the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application.
Claims
1. A level gauge density float, comprising a float (101) disposed inside a tank (100), a level gauge (102) disposed on the top of the tank (100), and a magnetic flip measuring ruler (103) disposed on the side wall of the tank (100), characterized in that: The float (101) is hollow and has an air bladder (200) inside. The air bladder (200) passes through the top of the float (101) and is sealed with an inflation hose (201). An inflation machine (203) is provided at the air inlet end of the inflation hose (201). A sealing detection chamber (300) is provided outside the float (101). A density sensor (301) is provided at one end of the sealing detection chamber (300), and a temperature sensor (302) is provided at the other end of the sealing detection chamber (300). Both the density sensor (301) and the temperature sensor (302) are wirelessly connected to the level gauge (102).
2. The level gauge density float as described in claim 1, characterized in that: The float (101) is elliptical in shape. The sealed detection chamber (300) includes a hollow ring (303) connected to the middle of the float (101). A secondary chamber (304) is symmetrically connected to the left and right sides of the hollow ring (303). The density sensor (301) is installed in one side of the secondary chamber (304), and the temperature sensor (302) is installed in the other side of the secondary chamber (304).
3. The level gauge density float as described in claim 2, characterized in that: The hollow ring (303) has a plurality of first guide vanes (400) on its surface.
4. The level gauge density float as described in claim 3, characterized in that: The float (101) is provided with multiple second guide vanes (401) at both the upper and lower ends, and the first guide vane (400) is larger than the second guide vane (401).
5. A level gauge density float as described in claim 4, characterized in that: A pressure sensor (204) is installed inside the airbag (200), and the pressure sensor (204) is wirelessly connected to the liquid level gauge (102).
6. A level gauge density float as described in claim 5, characterized in that: The level gauge (102) is connected to the tank (100) via a flange (500). A connecting block (501) is provided on the side of the level gauge (102) near the magnetic flip measuring ruler (103). The connecting block (501) is magnetically connected to the magnetic flip measuring ruler (103). A magnetic induction strip (502) is provided on the top of the hollow ring (303).
7. A level gauge density float as described in claim 6, characterized in that: A sealing ring (202) is provided at the top of the float (101) where it passes through the air hose (201). The inner ring of the sealing ring (202) is heat-fused to the air hose (201), and the outer ring of the sealing ring (202) is heat-fused to the float (101).