Liquid level switch suitable for low-temperature pressure container
By incorporating a filter device into the float-type level switch, the problem of blockage caused by the accumulation of liquid impurities is solved, enabling the float to slide smoothly and measure accurately in cryogenic pressure vessels.
Patent Information
- Application Number
- CN202520143563.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing float-type level switches suffer from level detection accuracy issues due to impurities accumulating in cryogenic pressure vessels, causing blockage between the float and the detection tube.
A filter device is installed between the float and the detection tube, including components such as a locking frame, filter cartridge, screw hole block, bolt, electric telescopic rod and scraper ring, to intercept and clean impurities and ensure smooth sliding of the float.
The filtration device effectively intercepts and cleans impurities, improving the sliding efficiency of the float and the accuracy of liquid level measurement, reducing jamming and obstruction, and enhancing the reliability of the measurement.
Smart Images
Figure CN223664078U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid level switch technical field especially a liquid level switch suitable for low temperature pressure container. BACKGROUND
[0002] Liquid level switch is a kind of equipment for monitoring and control liquid level height, it can control relevant operation or alarm according to the change of liquid level, liquid level switch, also called water level switch or liquid level sensor, is mainly divided into contact type and non-contact type from form, contact type liquid level switch, such as float ball type liquid level switch, the float of float ball is sunk to perceive the change of liquid level, is widely used in industry, agriculture, environmental protection etc., plays an important role in liquid storage, process control and safety protection.
[0003] The existing float ball type liquid level switch is mostly equipped with machine body through base on low temperature pressure container when using, makes detection tube and float ball be located in container interior, when container interior liquid level rises, float ball rises along with it, magnet in float ball is close to the magnetic reed switch arranged in detection tube interior, attracts the contact in magnetic reed switch to close, thereby sends " open " signal to outside through machine body;Conversely, when liquid level drops, float ball drops, magnet is far away from magnetic reseatch, and the contact in magnetic reed switch is disconnected, and " off " signal is sent to outside, thereby reach the control of container interior liquid level.
[0004] But as some liquid will be mixed with impurities, possibly cause impurities to enter the gap between float ball and detection tube and produce accumulation, cause float ball to slide along the surface of detection tube and appear jam blocking condition, influence the detection accuracy of container interior liquid level. UTILITY MODEL CONTENTS
[0005] The utility model solves the technical problems that as some liquid will be mixed with impurities, possibly cause impurities to enter the gap between float ball and detection tube and produce accumulation, cause float ball to slide along the surface of detection tube and appear jam blocking condition, influence the detection accuracy of container interior liquid level.
[0006] The utility model solves the technical problems and adopts the technical scheme that a kind of liquid level switch suitable for low temperature pressure container, including base, the side of the base is provided with machine body, the side of the base away from machine body is provided with detection tube, the surface of the detection tube is provided with multiple float balls, the side of the base is provided with the filter device that detection tube and multiple float balls are wrapped and the impurities contained in liquid are intercepted.
[0007] The effects achieved by the above components are that: first, the machine body is assembled on the low-temperature pressure container through the base, so that the detection tube and the floating ball are located inside the container; when the liquid level in the container rises, the floating ball rises, the magnet in the floating ball approaches the magnetic reed switch arranged inside the detection tube, the contacts in the magnetic reed switch are attracted and closed, so that the "on" signal is sent out to the outside through the machine body; on the contrary, when the liquid level drops, the floating ball drops, the magnet moves away from the magnetic reed switch, the contacts in the magnetic reed switch are disconnected, and the "off" signal is sent out to the outside, so that the control of the liquid level in the container is achieved.
[0008] Preferably, the filtering device comprises a clamping frame and a filter cartridge, one side of the filter cartridge is provided with a collecting device, the clamping frame is fixedly connected with the base, a circular hole is formed in one side of the clamping frame, a threaded hole block is fixedly connected to one side of the filter cartridge, the surface of the threaded hole block is slidably connected with the inner wall of the clamping frame, a bolt is threadedly connected to the inner wall of the threaded hole block, the size and shape of the surface of the bolt are matched with the size and shape of the inner wall of the circular hole, and the filter cartridge is sleeved on the surfaces of the detection tube and the plurality of floating balls.
[0009] The effects achieved by the above components are that: by setting the filtering device, first, the filter cartridge is manually moved, so that the filter cartridge drives the threaded hole block to move; when the threaded hole block moves to the position of being clamped in the clamping frame, the filter cartridge is sleeved on the surfaces of the detection tube and the plurality of floating balls, so that the inner wall of the threaded hole block coincides with the inner wall of the circular hole; at this time, the bolt is manually rotated to be rotated into the position inside the circular hole and the threaded hole block to fix the position of the threaded hole block and the filter cartridge, so that the assembly between the filter cartridge and the base is fixed, the filter cartridge wraps the detection tube and the plurality of floating balls, and the impurities in the liquid are intercepted and filtered, which reduces the accumulation of impurities in the gap between the floating ball and the detection tube, prevents the floating ball from being stuck when sliding along the surface of the detection tube, and improves the sliding efficiency and measurement accuracy of the floating ball.
[0010] Preferably, one end of the bolt is fixedly connected with a twisting block, and a plurality of grooves are formed in the surface of the twisting block.
[0011] The effects achieved by the above components are that: by setting the twisting block, the contact area between the hand and the bolt can be increased, so that the bolt can be conveniently rotated by manually rotating the twisting block.
[0012] Preferably, a reinforcing block is fixedly connected to one side of the clamping frame, and the reinforcing block is fixedly connected with the base.
[0013] The effects achieved by the above components are that: by setting the reinforcing block, the connection strength between the clamping frame and the base can be increased, and the clamping frame can be prevented from being separated from the base.
[0014] Preferably, one side of the screw hole block is fixedly connected with an electric telescopic rod, the other end of the electric telescopic rod is fixedly connected with a scraping ring, the scraping ring is sleeved on the surface of the filter cartridge, and the inner wall of the scraping ring is attached to the surface of the filter cartridge.
[0015] The effect achieved by the above-mentioned components is that: by arranging the scraping ring, when the surface of the filter cartridge is attached with more impurities, the electric telescopic rod is started to drive the scraping ring to move up and down along the surface of the filter cartridge, so that the scraping ring moves up and down attached to the surface of the filter cartridge and scrapes off the attached impurities, achieving rapid cleaning of the surface of the filter cartridge.
[0016] Preferably, the end of the filter cartridge away from the screw hole block is fixedly connected with a circular ring, and the surface of the circular ring is larger than the inner wall of the scraping ring.
[0017] The effect achieved by the above-mentioned components is that: by arranging the circular ring, the circular ring can assist in intercepting the moving scraping ring, reducing the situation that the scraping ring is separated from the surface of the filter cartridge.
[0018] Preferably, the collecting device comprises a collecting box, the inner wall of the collecting box is fixedly connected with a filter plate, one side of the filter plate is fixedly connected with a threaded cylinder, one side of the filter cartridge is fixedly connected with a threaded rod, and the surface of the threaded rod is threadedly connected with the inner wall of the threaded cylinder.
[0019] The effect achieved by the above-mentioned components is that: by arranging the collecting device, first, the collecting box is manually rotated to drive the filter plate to rotate, so that the filter plate drives the threaded cylinder to rotate, when the threaded cylinder is rotated to the position of the threaded connection on the surface of the threaded rod, the assembly of the collecting box and the filter cartridge is achieved, when the impurities on the surface of the filter cartridge are scraped off by the scraping ring, the impurities fall into the collecting box for storage, achieving the collection and treatment of the impurities, reducing the situation that the scraped impurities fall into the container, causing the inside of the container to be dirty and messy, and improving the efficiency and convenience of treating the impurities.
[0020] Preferably, a plurality of reinforcing ribs are fixedly connected to one side of the filter plate, and the plurality of reinforcing ribs are arranged at equal distances.
[0021] The effect achieved by the above-mentioned components is that: by arranging the reinforcing ribs, the reinforcing ribs can increase the strength of the filter plate, reducing the situation that the filter plate is concave or deformed during use.
[0022] The beneficial effects of the utility model are:
[0023] By arranging the filtering device, the detection tube and the plurality of floating balls can be wrapped and the impurities in the liquid can be intercepted and filtered, reducing the situation that the impurities in the liquid enter the gap between the floating ball and the detection tube and accumulate, causing the floating ball to be blocked when sliding along the surface of the detection tube, improving the sliding efficiency and measurement accuracy of the floating ball. BRIEF DESCRIPTION OF DRAWINGS
[0024] The utility model is further illustrated below in combination with the drawings and embodiments.
[0025] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0026] Figure 2 It is the three-dimensional structure schematic diagram of the utility model clamping frame;
[0027] Figure 3 It is the three-dimensional structure schematic diagram of the utility model filter cartridge;
[0028] Figure 4 It is the three-dimensional structure schematic diagram of the utility model collection box.
[0029] Legend: 1, base; 2, machine body; 3, detection pipe; 4, float ball; 5, filter device; 51, clamping frame; 52, round hole; 53, reinforcing block; 54, screw hole block; 55, bolt; 56, screw block; 57, filter cartridge; 58, electric telescopic rod; 59, scraping ring; 510, circular ring; 6, collection device; 61, collection box; 62, filter plate; 63, threaded cylinder; 64, reinforcing rib; 65, threaded rod. Specific embodiments
[0030] The utility model will be further explained in detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the utility model in a schematic manner, so it only shows the relevant structure of the utility model.
[0031] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0032] Figures 1-4The liquid level switch suitable for low-temperature pressure container shown comprises a base 1, a body 2 arranged on one side of the base 1, a detection tube 3 arranged on the side of the base 1 away from the body 2, a plurality of floating balls 4 arranged on the surface of the detection tube 3, and a filter device 5 arranged on one side of the base 1 and wrapping the detection tube 3 and the plurality of floating balls 4 and intercepting impurities contained in liquid. First, the body 2 is assembled on the low-temperature pressure container through the base 1, so that the detection tube 3 and the floating balls 4 are located inside the container. When the liquid level in the container rises, the floating balls 4 rise, the magnet in the floating ball 4 approaches the magnetic reed switch arranged inside the detection tube 3, attracts the contacts in the magnetic reed switch to close, thereby sending an "on" signal to the outside through the body 2. Conversely, when the liquid level drops, the floating balls 4 drop, the magnet moves away from the magnetic reed switch, the contacts in the magnetic reed switch are disconnected, and an "off" signal is sent to the outside, thereby achieving control of the liquid level in the container.
[0033] Figure 2 and Figure 3 The filter device 5 shown comprises a clamping frame 51 and a filter cartridge 57, the filter cartridge 57 is provided with a collecting device 6 on one side, the clamping frame 51 is fixedly connected with the base 1, a circular hole 52 is formed on one side of the clamping frame 51, a threaded hole block 54 is fixedly connected with one side of the filter cartridge 57, the surface of the threaded hole block 54 is slidably connected with the inner wall of the clamping frame 51, a threaded bolt 55 is threadedly connected with the inner wall of the threaded hole block 54, the surface size and shape of the threaded bolt 55 are adapted to the inner wall size and shape of the circular hole 52, the filter cartridge 57 is sleeved on the surface of the detection tube 3 and the plurality of floating balls 4. By arranging the filter device 5, first, the filter cartridge 57 is manually moved, so that the filter cartridge 57 drives the threaded hole block 54 to move. When the threaded hole block 54 moves to the position clamped in the clamping frame 51, the filter cartridge 57 is sleeved on the surface of the detection tube 3 and the plurality of floating balls 4, so that the inner wall of the threaded hole block 54 coincides with the inner wall of the circular hole 52. At this time, the threaded bolt 55 is manually rotated to rotate into the position inside the circular hole 52 and the threaded hole block 54 to fix the position of the threaded hole block 54 and the filter cartridge 57, so as to assemble and fix the filter cartridge 57 and the base 1. The filter cartridge 57 wraps the detection tube 3 and the plurality of floating balls 4 and intercepts and filters impurities in liquid, which reduces the accumulation of impurities in the gap between the floating ball 4 and the detection tube 3, prevents the floating ball 4 from being stuck when sliding along the surface of the detection tube 3, and improves the sliding efficiency and measurement accuracy of the floating ball 4.
[0034] Figure 2 and Figure 3One end of the bolt 55 is fixedly connected with a wrench block 56, the surface of the wrench block 56 is provided with a plurality of grooves, by setting the wrench block 56, the wrench block 56 can increase the contact area of the hand and the bolt 55, so that the personnel can conveniently rotate the bolt 55 by manually rotating the wrench block 56, one side of the clamping frame 51 is fixedly connected with a reinforcing block 53, the reinforcing block 53 is fixedly connected with the base 1, by setting the reinforcing block 53, the reinforcing block 53 can increase the connection strength between the clamping frame 51 and the base 1, and reduce the situation that the clamping frame 51 is separated from the base 1.
[0035] Figure 2 And Figure 3 One side of the threaded hole block 54 is fixedly connected with an electric telescopic rod 58, the other end of the electric telescopic rod 58 is fixedly connected with a scraping ring 59, the scraping ring 59 is sleeved on the surface of the filter cartridge 57, the inner wall of the scraping ring 59 is attached to the surface of the filter cartridge 57, by setting the scraping ring 59, when the surface of the filter cartridge 57 is attached with more impurities, the electric telescopic rod 58 is started, the electric telescopic rod 58 drives the scraping ring 59 to move up and down along the surface of the filter cartridge 57, the scraping ring 59 is attached to the surface of the filter cartridge 57 and moves up and down to scrape off the attached impurities, achieving rapid cleaning of the surface of the filter cartridge 57, one end of the filter cartridge 57 away from the threaded hole block 54 is fixedly connected with a circular ring 510, the surface of the circular ring 510 is larger than the inner wall of the scraping ring 59, by setting the circular ring 510, the circular ring 510 can assist in intercepting the moving scraping ring 59, reducing the situation that the scraping ring 59 is separated from the surface of the filter cartridge 57.
[0036] Figure 3 And Figure 4 The collection device 6 includes a collection box 61, the inner wall of the collection box 61 is fixedly connected with a filter plate 62, one side of the filter plate 62 is fixedly connected with a threaded cylinder 63, one side of the filter cartridge 57 is fixedly connected with a threaded rod 65, the surface of the threaded rod 65 is threadedly connected with the inner wall of the threaded cylinder 63, by setting the collection device 6, first manually rotating the collection box 61, the collection box 61 drives the filter plate 62 to rotate, the filter plate 62 drives the threaded cylinder 63 to rotate, when the threaded cylinder 63 is rotated to the position of being threadedly connected with the surface of the threaded rod 65, the assembly of the collection box 61 and the filter cartridge 57 is achieved, when the scraping ring 59 scrapes off the impurities on the surface of the filter cartridge 57, the impurities fall into the inside of the collection box 61 for storage, achieving collection and treatment of the impurities, reducing the situation that the scraped impurities fall into the inside of the container, causing the inside of the container to be dirty and messy, improving the efficiency and convenience of treating impurities.
[0037] Figure 3 And Figure 4 One side of the filter plate 62 is fixedly connected with a plurality of reinforcing ribs 64, the plurality of reinforcing ribs 64 are arranged at equal distances, by setting the reinforcing ribs 64, the reinforcing ribs 64 can increase the strength of the filter plate 62, reducing the situation that the filter plate 62 is concave or deformed during use.
[0038] Working principle: first through the base 1 assembly in low temperature pressure vessel body 2, make detection tube 3 and the float ball 4 in the container inside, when the container inside liquid level rises, the float ball 4 rises along with it, the magnet in the float ball 4 is close to the magnetic reed switch arranged in the detection tube 3 inside, attracts the contact in the magnetic reed switch to close, thereby sends out the “open” signal to the outside through the body 2, when the liquid level falls, the float ball 4 falls, the magnet is far away from the magnetic reed switch, the contact in the magnetic reed switch is disconnected, sends out the “off” signal to the outside, thereby reaches the control to the container inside liquid level.
[0039] First, manually move the filter cartridge 57, so that the filter cartridge 57 moves the screw hole block 54, when the screw hole block 54 moves to the position of being clamped into the card position frame 51, so that the filter cartridge 57 is sleeved on the surface of the detection tube 3 and the plurality of float balls 4, so that the inner wall of the screw hole block 54 coincides with the inner wall of the circular hole 52, at this time, manually rotate the bolt 55, so that the bolt 55 is rotated into the position inside the circular hole 52 and the screw hole block 54 to fix the position of the screw hole block 54 and the filter cartridge 57, achieve the assembly and fixation between the filter cartridge 57 and the base 1, so that the filter cartridge 57 wraps the detection tube 3 and the plurality of float balls 4 and filters the impurities in the liquid, completes the interception of the impurities, when the surface of the filter cartridge 57 is attached with more impurities, start the electric telescopic rod 58, so that the electric telescopic rod 58 drives the scraping ring 59 to move up and down along the surface of the filter cartridge 57, so that the scraping ring 59 moves up and down and scrapes off the attached impurities, achieve the rapid cleaning of the surface of the filter cartridge 57.
[0040] First, manually rotate the collection box 61, so that the collection box 61 drives the filter plate 62 to rotate, so that the filter plate 62 drives the threaded cylinder 63 to rotate, when the threaded cylinder 63 is rotated to the position of being screwed on the surface of the threaded rod 65, achieve the assembly and fixation of the collection box 61 and the filter cartridge 57, when the scraping ring 59 scrapes off the impurities on the surface of the filter cartridge 57, the impurities fall into the collection box 61 and are stored, achieve the collection and treatment of the impurities.
[0041] The above ideal embodiment according to the present application is disclosed, and the related personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and must be determined by the scope of the claims.
Claims
1. A level switch suitable for use in cryogenic pressure vessels comprising a base (1) characterised in that: The side of the base (1) is provided with the organism (2), the side of the base (1) away from the organism (2) is provided with the detection tube (3), the surface of the detection tube (3) is provided with a plurality of floating balls (4), one side of the base (1) is provided with a filter device (5) which wraps the detection tube (3) and the plurality of floating balls (4) and intercepts impurities contained in the liquid.
2. A level switch suitable for use in cryogenic pressure vessels according to claim 1, characterised in that: The filter device (5) includes a clamping frame (51) and a filter cartridge (57), one side of the filter cartridge (57) is provided with a collecting device (6), the clamping frame (51) is fixedly connected with the base (1), a circular hole (52) is formed in one side of the clamping frame (51), a threaded hole block (54) is fixedly connected with one side of the filter cartridge (57), the surface of the threaded hole block (54) is slidably connected with the inner wall of the clamping frame (51), a bolt (55) is threadedly connected with the inner wall of the threaded hole block (54), the surface size and shape of the bolt (55) are adapted to the inner wall size and shape of the circular hole (52), and the filter cartridge (57) is sleeved on the surface of the detection tube (3) and the plurality of floating balls (4).
3. A level switch suitable for use in cryogenic pressure vessels according to claim 2, characterised in that: One end of the bolt (55) is fixedly connected with a twisting block (56), and the surface of the twisting block (56) is provided with a plurality of grooves.
4. A level switch for use in cryogenic pressure vessels according to claim 2, characterized in that: One side of the clamping frame (51) is fixedly connected with a reinforcing block (53), and the reinforcing block (53) is fixedly connected with the base (1).
5. A level switch for use in cryogenic pressure vessels according to claim 2, characterized in that: One side of the threaded hole block (54) is fixedly connected with an electric telescopic rod (58), the other end of the electric telescopic rod (58) is fixedly connected with a scraping ring (59), the scraping ring (59) is sleeved on the surface of the filter cartridge (57), and the inner wall of the scraping ring (59) is attached to the surface of the filter cartridge (57).
6. A level switch suitable for use in cryogenic pressure vessels according to claim 5, characterised in that: One end of the filter cartridge (57) away from the threaded hole block (54) is fixedly connected with a circular ring (510), and the surface of the circular ring (510) is larger than the inner wall of the scraping ring (59).
7. A level switch suitable for use in cryogenic pressure vessels according to claim 2, characterized in that: The collecting device (6) includes a collecting box (61), the inner wall of the collecting box (61) is fixedly connected with a filter plate (62), one side of the filter plate (62) is fixedly connected with a threaded cylinder (63), one side of the filter cartridge (57) is fixedly connected with a threaded rod (65), and the surface of the threaded rod (65) is threadedly connected with the inner wall of the threaded cylinder (63).
8. A level switch suitable for use in cryogenic pressure vessels according to claim 7, characterised in that: One side of the filter plate (62) is fixedly connected with a plurality of reinforcing ribs (64), and the plurality of reinforcing ribs (64) are arranged at equal distances.