Magnetic flap liquid level meter

Abstract

The utility model discloses a magnetic turning plate liquid level meter, and relates to the technical field of liquid level meters. The liquid level meter comprises a liquid level meter body and a filtering assembly, an upper connecting pipe is welded to the top of the peripheral face of the liquid level meter body in a penetrating mode, a water inlet pipe is welded to the top of the peripheral face of the upper connecting pipe in a penetrating mode, and the filtering assembly is clamped to the bottom of the peripheral face of the liquid level meter body in a penetrating mode; a blow-off pipe is welded to the bottom of the peripheral surface of the filter assembly in a penetrating manner, a breather pipe is welded to the peripheral surface of the blow-off pipe in a penetrating manner, an air blower is fixedly clamped to the other end of the breather pipe, and a filter element is clamped to one end in the filter assembly in a penetrating manner. Through the arrangement of the liquid level meter main body and the filtering assembly, the problems that cleaning liquid after flushing and cleaning in a magnetic turning plate liquid level meter is easy to remain in the liquid level meter, impurities are introduced into measured liquid, and the filtering capacity of a filter element declines too fast when the liquid entering the liquid level meter is filtered, so that the liquid level meter is not easy to clean are solved. And the measured liquid cannot enter the liquid level meter in time, so that the measurement is not accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid level gauges, in particular to a magnetic flap liquid level gauge. Background Art

[0002] ‌Magnetic flap level gauge,‌ is a level gauge that works on the principle of magnetic coupling. When the liquid level in the measured container rises or falls, the magnetic float in the level gauge body tube also rises or falls accordingly. The permanent magnet in the float is transmitted to the magnetic flip column indicator through magnetic coupling, driving the red and white flip columns to flip 180°. When the liquid level rises, the flip column changes from white to red, and when the liquid level drops, the flip column changes from red to white. The red and white junction of the indicator is the actual height of the liquid level inside the container, thereby achieving a clear indication of the liquid level. It can be used in high temperature, high pressure, and corrosion-resistant occasions. It has the characteristics of high sealing and leakage prevention, making it suitable for medium level detection of various towers, tanks, tanks, spherical containers, boilers and other equipment, but it still has the following disadvantages in actual use:

[0003] 1. The utility model with publication number CN218673830U discloses an anti-clogging magnetic flap level gauge, which relates to the technical field of anti-clogging magnetic flap level gauges, including a level gauge body and a filter unit; a magnetic flip column is arranged on the front side of the level gauge body in the up-down direction, a scale is arranged on the outer side of the magnetic flip column in the up-down direction, a connecting pipe is arranged at the upper and lower ends of the rear side of the level gauge body, the rear ends of the two connecting pipes are matched and connected with the structure to be measured, and a magnetic float is slidably connected to the inside of the level gauge body in the up-down direction; the filter unit includes a square groove, a first slider, and a filter cartridge , handle and clamping assembly, through the sliding of the first slider, it is convenient to realize the disassembly and replacement of the internally clamped filter cartridge, and the filter cartridge is used to filter the liquid passing through the connecting tube, so as to prevent large particles of impurities mixed in the liquid from entering the liquid level meter body and causing blockage between the magnetic float and the internal side wall of the liquid level meter body. When flushing, a high-pressure nozzle is directly used to spray cleaning liquid such as cleaning water for cleaning. After cleaning, it is directly put into use, which is easy to cause the residual cleaning liquid to mix into the liquid in the measured container, and introduce new impurities into the liquid in the measured container;

[0004] 2. In the magnetic flap level gauge, in order to ensure that the magnetic float can rise and fall stably and smoothly, the liquid entering the oil level gauge needs to be filtered. However, the filter element is usually embedded in the filter, and only the end face is filtered. When filtering, only filtering through the end face will cause particles in the liquid to quickly block the filter element, and the filtering capacity of the filter element will decrease rapidly. When the liquid level in the measured container changes during use, it is easy to cause the measured liquid to enter the level gauge late, resulting in inaccurate measurement of the level gauge. Utility Model Content

[0005] The utility model aims to provide a magnetic flap liquid level gauge, which solves the problem that the cleaned liquid after flushing and cleaning in the magnetic flap liquid level gauge is easily retained in the liquid level gauge, introducing impurities into the measured liquid, and the filtering capacity of the filter element decreases too quickly when filtering the liquid entering the liquid level gauge, causing the measured liquid to enter the liquid level gauge untimely and causing inaccurate measurement.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a magnetic flap level gauge, comprising a level gauge body and a filter assembly, wherein an upper connecting pipe is welded through the top of the outer peripheral surface of the level gauge body, a water inlet pipe is welded through the top of the outer peripheral surface of the upper connecting pipe, a filter assembly is clamped through the bottom of the outer peripheral surface of the level gauge body, a lower connecting pipe is clamped through one end of the filter assembly, a sewage pipe is welded through the bottom of the outer peripheral surface of the filter assembly, a ventilation pipe is welded through the outer peripheral surface of the sewage pipe, a blower is clamped and fixed at the other end of the ventilation pipe, a filter element is clamped through one end of the filter assembly, and the filter element is located at the other end of the filter assembly relative to the lower connecting pipe;

[0008] Before the medium enters the main body of the level gauge, it first enters the filter assembly through the lower connecting pipe, and the impurities in the medium are filtered through the filter assembly, and then the medium enters the main body of the level gauge to avoid friction between the impurities and the float, thereby ensuring the monitoring sensitivity. After each use of the level gauge, cleaning fluid and clean water are pumped into the level gauge through the water inlet pipe to clean the main body of the level gauge to avoid large amounts of high-viscosity media from adhering to the main body of the level gauge, and to backwash the filter assembly to ensure the normal use of the filter assembly. There is no need to clean the filter assembly additionally, which improves the convenience of use and avoids the reduction of sealing due to multiple disassembly and cleaning of the level gauge.

[0009] Furthermore, a second electromagnetic valve is inserted and connected to the outer peripheral surface of the upper connecting pipe, the water inlet pipe is located between the second electromagnetic valve and the liquid level meter body, and a first electromagnetic valve is inserted and connected to the outer peripheral surface of the water inlet pipe;

[0010] When the liquid level gauge is monitoring the liquid level, the second solenoid valve is opened and the first solenoid valve is closed to connect the upper end of the liquid level gauge body with the equipment. After the use of the liquid level gauge, the first solenoid valve is opened and the second solenoid valve is closed to allow cleaning fluid and clean water to enter the liquid level gauge body through the water inlet pipe to clean the liquid level gauge, thereby avoiding large amounts of high-viscosity media from adhering to the liquid level gauge body, ensuring the normal use of the liquid level gauge, reducing the number of cleaning times by staff, improving convenience of use, and avoiding multiple disassembly and cleaning of the liquid level gauge that leads to a decrease in sealing.

[0011] Furthermore, a third solenoid valve is inserted through the outer peripheral surface of the lower connecting pipe and clamped therein, and the lower connecting pipe is located at the other end of the filter assembly relative to the liquid level meter body;

[0012] When the liquid level meter is monitoring the liquid level, the third solenoid valve is opened to connect the bottom end of the liquid level meter body with the equipment. The medium enters the filter assembly through the lower connecting pipe and the solid impurities in the medium are filtered through the filter assembly to avoid friction between the impurities and the float, thereby ensuring the sensitivity of monitoring.

[0013] Furthermore, a one-way valve is inserted through the outer peripheral surface of the ventilation pipe, and the inner diameter of the output end of the blower is equal to the inner diameter of the ventilation pipe;

[0014] After the cleaning inside the level meter is completed, start the blower to drive the flow of air, so that the outside air enters the filter assembly for filtration, and then enters the main body of the level meter to air-cool and dry the main body of the level meter to avoid residual moisture in the main body of the level meter causing inaccurate monitoring structure when the medium is monitored again.

[0015] Furthermore, a fourth solenoid valve is inserted through the outer peripheral surface of the sewage pipe and connected thereto, and the ventilation pipe is located between the filter assembly and the fourth solenoid valve;

[0016] After the use of the liquid level gauge is completed, the fourth solenoid valve is opened to discharge the impurities in the filter assembly through the drain pipe. When cleaning the liquid level gauge, the cleaning fluid and clean water can backwash the filter element to ensure the normal use of the filter assembly. There is no need for additional cleaning of the filter assembly, which improves the convenience of use and avoids the reduction of sealing due to multiple disassembly and cleaning of the liquid level gauge.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model solves the problem that the cleaned liquid after flushing and cleaning in the magnetic flap level gauge is easily retained in the level gauge and introduces impurities into the measured liquid by arranging the level gauge body and the filter assembly. After the cleaning is completed, the first solenoid valve and the fourth solenoid valve are closed, the second solenoid valve is opened, and the blower is started. When the blower is working, dry air enters the filter assembly through the ventilation pipe and the sewage pipe, and then enters the level gauge body to air-cool and dry the inner side, so that the water in the level gauge body is quickly blown dry, and the remaining cleaning water is prevented from mixing in after the liquid in the measured container enters, causing the liquid contained in the container to be contaminated, so that after the level gauge is cleaned, the level gauge can be quickly restored to dryness, and the introduction of impurities into the measured liquid is reduced when the liquid level detection is restored.

[0019] 2. The utility model solves the problem that when the magnetic flap level gauge is in use, the filtering capacity of the filter element decreases too quickly when filtering the liquid entering the level gauge, causing the measured liquid to enter the level gauge untimely and causing inaccurate measurement by arranging a filtering component. During operation, the liquid in the measured container is transported to the filtering component through the lower connecting pipe. In the filtering component, the measured liquid is filtered and transported to one end close to the level gauge body through the circumference of the filter element and the end face close to the lower connecting pipe, and then transported to the level gauge body, thereby reducing the filtration resistance, reducing the measurement error caused by the insufficient speed of the measured liquid entering and outputting the level gauge body during the liquid inlet and outlet in the measured container and the insufficient filtration, thereby increasing the timeliness and accuracy of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural effect diagram of the utility model;

[0021] Figure 2 This is a structural diagram of the main body of the liquid level meter of the utility model;

[0022] Figure 3 This is a structural diagram of the filter assembly of the utility model;

[0023] Figure 4 It is a cross-sectional view of the filter assembly of the utility model.

[0024] Reference numerals:

[0025] 1. Liquid level meter body; 101. Upper connecting pipe; 102. Water inlet pipe; 103. First solenoid valve; 104. Second solenoid valve; 2. Filter assembly; 201. Lower connecting pipe; 202. Third solenoid valve; 203. Drain pipe; 204. Blower; 205. Filter element; 206. Fourth solenoid valve; 207. Ventilation pipe; 208. One-way valve. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1-4 As shown, the utility model is a magnetic flap level gauge, comprising a level gauge body 1 and a filter assembly 2, an upper connecting pipe 101 is welded through the top of the outer peripheral surface of the level gauge body 1, a water inlet pipe 102 is welded through the top of the outer peripheral surface of the upper connecting pipe 101, a filter assembly 2 is clamped through the bottom of the outer peripheral surface of the level gauge body 1, a lower connecting pipe 201 is clamped through one end of the filter assembly 2, and a sewage pipe 203 is welded through the bottom of the outer peripheral surface of the filter assembly 2;

[0028] The magnetic flap level gauge is connected to the equipment through the upper connecting pipe 101 and the lower connecting pipe 201, and the water inlet pipe 102 is connected to the cleaning device. When the equipment is in use, the second solenoid valve 104 and the third solenoid valve 202 are opened to allow the medium to enter the filter component 2 through the lower connecting pipe 201, and the solid impurities in the medium are filtered out by the filter component 2, and then the medium enters the level gauge body 1, and the liquid level of the medium in the equipment is displayed by the level gauge body 1. After each use of the magnetic flap level gauge, the second solenoid valve 104 and the third solenoid valve 202 are closed, and the drain pipe 203 is opened to discharge the impurities in the filter component 2, and then the first solenoid valve 103 is opened and the cleaning fluid and clean water are pumped into the level gauge in sequence through the cleaning device, so as to clean the level gauge body. The body 1 is cleaned to prevent the medium with high viscosity from attaching in large quantities in the level gauge body 1. The cleaning liquid and clean water enter the filter component 2 and backwash the inner side thereof, and the blocked particles are discharged through the drain pipe 203. After the cleaning is completed, the first solenoid valve 103 and the fourth solenoid valve 206 are closed, and the second solenoid valve 104 is opened, and the blower 204 is started to drive the air into the filter component 2, and the air is cooled and dried through the liquid level gauge body 1, and then the air is discharged through the upper connecting pipe 101. A ventilation pipe 207 is welded through the outer peripheral surface of the drain pipe 203, and the other end of the ventilation pipe 207 is fixedly connected with the blower 204. A filter element 205 is clamped through one end of the filter component 2, and the filter element 205 is located at the other end of the filter component 2 relative to the lower connecting pipe 201.

[0029] Among them Figure 1-2 As shown, the outer circumference of the upper connecting pipe 101 is penetrated and clamped with a second electromagnetic valve 104, the water inlet pipe 102 is located between the second electromagnetic valve 104 and the liquid level meter body 1, and the outer circumference of the water inlet pipe 102 is penetrated and clamped with a first electromagnetic valve 103;

[0030] When the magnetic flap level gauge is monitoring the liquid level, the second solenoid valve 104 is opened and the first solenoid valve 103 is closed to connect the upper end of the level gauge body 1 to the equipment. After the level gauge is used, the first solenoid valve 103 is opened and the second solenoid valve 104 is closed to allow cleaning fluid and clean water to enter the level gauge body 1 through the water inlet pipe 102 for cleaning, thereby preventing high-viscosity media from being attached to the level gauge body 1 in large quantities.

[0031] Among them Figure 1 , 34, the outer circumference of the lower connecting pipe 201 penetrates and is clamped with a third solenoid valve 202, the lower connecting pipe 201 is located at the other end of the filter assembly 2 relative to the liquid level meter body 1, the outer circumference of the vent pipe 207 penetrates and is clamped with a one-way valve 208, the inner diameter of the output end of the blower 204 is equal to the inner diameter of the vent pipe 207, the outer circumference of the drain pipe 203 penetrates and is clamped with a fourth solenoid valve 206, the vent pipe 207 is located between the filter assembly 2 and the fourth solenoid valve 206, the input end of the blower 204 is connected to the device for conveying dry air, so that when working, the dry air is unidirectionally conveyed to the drain pipe 203;

[0032] When the liquid level gauge is monitoring the liquid level, the third solenoid valve 202 is opened to allow the medium in the equipment to enter the filter assembly 2 through the lower connecting pipe 201, and the solid impurities in the medium are filtered through the filter element 205, so that the clean medium enters the liquid level gauge body 1. After the liquid level gauge is used, the third solenoid valve 202 is closed and the fourth solenoid valve 206 is opened to discharge the impurities retained in the filter assembly 2 through the drain pipe 203. After the cleaning liquid and clean water clean the liquid level gauge body 1, they enter the filter assembly 2 and backwash the filter element 205 to discharge the particles blocked on the surface of the filter element 205, and discharge the sewage through the drain pipe 203. After the cleaning is completed, the fourth solenoid valve 206 is closed, and the blower 204 is started to drive the air flow. The air enters the filter assembly 2 through the ventilation pipe 207 and the drain pipe 203, and then enters the liquid level gauge body 1 to air-cool and dry the inner side.

[0033] The specific working principle of the utility model is as follows: the magnetic flap level gauge is connected to the equipment through the upper connecting pipe 101 and the lower connecting pipe 201, and the water inlet pipe 102 is connected to the cleaning device, and the sewage pipe 203 is connected to the sewage treatment device. When the equipment is in use, the second solenoid valve 104 is opened and the first solenoid valve 103 is closed, so that the upper end of the level gauge body 1 is connected to the equipment, and the third solenoid valve 202 is opened to allow the medium in the equipment to enter the filter assembly 2 through the lower connecting pipe 201, and the medium is filtered through the filter element 205. The solid impurities in the measured container are filtered to allow the clean medium to enter the liquid level meter body 1, and the liquid level of the medium in the equipment is displayed through the liquid level meter body 1. After the use of the liquid level meter is finished, the third solenoid valve 202 is closed and the fourth solenoid valve 206 is opened to discharge the impurities retained in the filter assembly 2 through the sewage pipe 203. During the operation, the liquid in the measured container is transported to the filter assembly 2 through the lower connecting pipe 201. In the filter assembly 2, the measured liquid is filtered through the side of the filter element 205 and the end face close to the lower connecting pipe 201. The liquid is transported to one end close to the liquid level meter body 1 and transported to the liquid level meter body 1 to reduce the resistance of filtration. The measurement error caused by the insufficient speed of the measured liquid entering and outputting the liquid level meter body 1 in the measured container and the insufficient filtration is caused by the reduced filtration resistance. The first solenoid valve 103 is opened and the second solenoid valve 104 is closed, so that the cleaning liquid and clean water enter the liquid level meter body 1 through the water inlet pipe 102 for cleaning, and then enter the filter assembly 2 to backwash the filter element 205, and discharge the particles blocked on the surface of the filter element 205. , and discharge the sewage through the sewage pipe 203. After cleaning is completed, close the first solenoid valve 103 and the fourth solenoid valve 206, open the second solenoid valve 104, and start the blower 204. When the blower 204 is working, dry air enters the filter assembly 2 through the ventilation pipe 207 and the sewage pipe 203, and then enters the liquid level meter body 1 to air-cool and dry the inner side, so that the water in the liquid level meter body 1 is quickly blown dry to prevent the liquid in the measured container from entering and mixing with the remaining cleaning water, causing the liquid contained in the container to be contaminated.

[0034] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A magnetic flap level gauge, comprising a level gauge body (1) and a filter assembly (2), characterized in that: An upper connecting pipe (101) is welded through the top of the outer circumference of the liquid level gauge body (1), a water inlet pipe (102) is welded through the top of the outer circumference of the upper connecting pipe (101), a filter assembly (2) is welded through the bottom of the outer circumference of the liquid level gauge body (1), one end of the filter assembly (2) is welded through the bottom of the outer circumference, a drain pipe (203) is welded through the bottom of the outer circumference of the filter assembly (2), a vent pipe (207) is welded through the outer circumference of the drain pipe (203), a blower (204) is fixedly clamped on the other end of the vent pipe (207), a filter element (205) is welded through the inner end of the filter assembly (2), and the filter element (205) is located at the other end of the filter assembly (2) relative to the lower connecting pipe (201).

2. A magnetic flap level gauge according to claim 1, characterized in that: A second solenoid valve (104) is inserted and clamped onto the outer circumference of the upper connecting pipe (101); the water inlet pipe (102) is located between the second solenoid valve (104) and the liquid level meter body (1); and a first solenoid valve (103) is inserted and clamped onto the outer circumference of the water inlet pipe (102).

3. The magnetic flap level gauge according to claim 1, characterized in that: A third solenoid valve (202) is inserted through the outer peripheral surface of the lower connecting pipe (201) and clamped therein. The lower connecting pipe (201) is located at the other end of the filter assembly (2) relative to the liquid level meter body (1).

4. The magnetic flap level gauge according to claim 1, characterized in that: A one-way valve (208) is inserted through the outer peripheral surface of the ventilation pipe (207) and clamped therein, and the inner diameter of the output end of the blower (204) is equal to the inner diameter of the ventilation pipe (207).

5. The magnetic flap level gauge according to claim 4, characterized in that: A fourth solenoid valve (206) is inserted through the outer peripheral surface of the sewage discharge pipe (203) and clamped therein, and the ventilation pipe (207) is located between the filter assembly (2) and the fourth solenoid valve (206).

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