Liquid level detection device

Abstract

The utility model relates to the technical field of liquid level detection, and discloses a liquid level detection device which comprises a liquid level detection structure, and a floating ball detection structure is arranged on the left side of the liquid level detection structure. The liquid level detection structure comprises a protective shell, a water inlet channel is arranged at the top of the protective shell, a detection chamber is arranged at the top of a water inlet, a diaphragm plate is arranged in the detection chamber, a connecting plate is arranged at the top of the diaphragm plate, iron cores are arranged on the left side and the right side of the connecting plate, and coils are arranged at the tops of the iron cores. According to the liquid level detection device, the siphon principle is adopted for detection, the change of the water level can be rapidly reflected in the detection chamber, detection is conducted through the interaction of the iron core and the coil, the response speed of the device is relatively high, and the device can adapt to various liquid media through the use of the floating ball structure; and the stable and reliable work can be ensured no matter in a high-corrosivity medium or in a high-temperature or high-pressure condition.

Description

Technical Field

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

[0002] A liquid level detection device is a device used in water treatment equipment. The main function of the liquid level detection device on the water treatment equipment is to detect the height of the water level. The liquid level detection device can improve the intelligence and operation efficiency of the equipment and ensure the normal operation of the equipment and water demand.

[0003] At present, the existing liquid level detection devices may have some problems such as complex structure, complex working principle or long sensor response time, resulting in slow response speed. For example, some liquid level meters based on capacitance principle may need a certain time to measure the change of dielectric constant of the medium, or some liquid level meters based on ultrasonic principle may need a long sound wave propagation time to detect the change of liquid level; in addition, the existing liquid level detection devices cannot guarantee stable and reliable operation in highly corrosive media or under high temperature or high pressure. Therefore, the utility model provides a liquid level detection device. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a liquid level detection device, which has the advantages of fast response speed and strong adaptability, and solves the problems of slow response speed and poor adaptability.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of fast response speed and strong adaptability, the utility model provides the following technical solutions:

[0008] A liquid level detection device comprises a liquid level detection structure, wherein a float detection structure is arranged on the left side of the liquid level detection structure;

[0009] The liquid level detection structure comprises a protective shell, a water inlet channel is provided on the top of the protective shell, a detection chamber is provided on the top of the water inlet channel, a diaphragm plate is provided inside the detection chamber, a connecting plate is provided on the top of the diaphragm plate, an iron core is provided on the left and right sides of the connecting plate, a coil is provided on the top of the iron core, a processing device is provided on the top of the coil, and a display screen is provided on the top of the processing device;

[0010] The float detection structure comprises a sleeve located on the left side of the protective shell, a water inlet is arranged at the bottom of the sleeve, and a float is arranged inside the sleeve.

[0011] As a preferred technical solution of the utility model, a connecting rod is provided on the top of the float, a bracket is provided in the middle of the connecting rod, a supporting block is provided on the top of the connecting rod, and a detection module is provided on the top of the supporting block.

[0012] As a preferred technical solution of the utility model, a fixing block is provided outside the processing device, the left side of the fixing block is connected to the sleeve, the bottom of the fixing block is connected to the protective shell, and the display screen is clamped on the top of the fixing block.

[0013] As a preferred technical solution of the utility model, a filter screen is clamped inside the water inlet channel, the water inlet channel is fixedly connected to the bottom of the protective shell, and the top of the water inlet channel is connected to the detection chamber, and the diaphragm plate is clamped to the bottom of the inner wall of the detection chamber.

[0014] As a preferred technical solution of the utility model, the coil is clamped on the left and right sides of the protective shell, the coil is connected to the processing device on the top, the iron core has a multi-stage cylindrical cross-section, and the iron core is annealed.

[0015] As a preferred technical solution of the utility model, the connecting rod is slidably connected to the bracket, the bracket is fixedly connected to the inside of the sleeve, the support block is fixedly connected to the bottom of the detection module, and the detection module is fixedly connected to the top of the sleeve.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a liquid level detection device, which has the following beneficial effects:

[0018] The liquid level detection device adopts the siphon principle for detection, so that the inside of the detection chamber can quickly reflect the change of water level, and detects through the interaction between the iron core and the coil, so that the response speed of the device is relatively fast. In addition, through the use of the float structure, the device can adapt to various liquid media, whether in highly corrosive media or under high temperature or high pressure, it can ensure its stable and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the liquid level detection structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the float structure of the utility model.

[0022] In the figure: 1. protective shell; 2. water inlet channel; 3. detection chamber; 4. diaphragm plate; 5. connecting plate; 6. iron core; 7. coil; 8. processing device; 9. display screen; 10. sleeve; 11. water inlet; 12. float; 13. connecting rod; 14. bracket; 15. support block; 16. detection module; 17. fixing block; 18. filter screen. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions 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 device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1-3 , a liquid level detection device, comprising a liquid level detection structure, a float detection structure is provided on the left side of the liquid level detection structure;

[0027] The liquid level detection structure includes a protective shell 1, a water inlet channel 2 is provided on the top of the protective shell 1, a detection chamber 3 is provided on the top of the water inlet channel 2, a diaphragm plate 4 is provided inside the detection chamber 3, a connecting plate 5 is provided on the top of the diaphragm plate 4, an iron core 6 is provided on the left and right sides of the connecting plate 5, a coil 7 is provided on the top of the iron core 6, a processing device 8 is provided on the top of the coil 7, and a display screen 9 is provided on the top of the processing device 8;

[0028] The float detection structure comprises a sleeve 10 located on the left side of the protective shell 1 , a water inlet 11 is arranged at the bottom of the sleeve 10 , and a float 12 is arranged inside the sleeve 10 .

[0029] In this embodiment, a connecting rod 13 is provided on the top of the float 12, a bracket 14 is provided in the middle of the connecting rod 13, a support block 15 is provided on the top of the connecting rod 13, and a detection module 16 is provided on the top of the support block 15, wherein the float 12 is a sensitive element of the device, and it moves up and down with the rise and fall of the liquid level; the connecting rod 13 is a connecting component between the float 12 and the bracket 14, and it converts the movement of the float 12 into the movement of the bracket 14 and the detection module 16 through mechanical transmission; the support block 15 is a component used to fix the bracket 14 and the detection module 16; the detection module 16 is used to detect changes in the liquid level.

[0030] It should be noted that: the connecting rod 13 is slidably connected to the bracket 14 , the bracket 14 is fixedly connected to the inside of the sleeve 10 , the support block 15 is fixedly connected to the bottom of the detection module 16 , and the detection module 16 is fixedly connected to the top of the sleeve 10 .

[0031] In this embodiment, a fixed block 17 is provided on the outside of the processing device 8, the left side of the fixed block 17 is connected to the sleeve 10, the bottom of the fixed block 17 is connected to the protective shell 1, and the display screen 9 is clamped on the top of the fixed block 17, wherein the processing device 8 is a component for processing and converting the electrical signal output by the coil 7; the display screen 9 is used to display the liquid level detection results and device status information.

[0032] In this embodiment, a filter screen 18 is clamped inside the water inlet channel 2, the water inlet channel 2 is fixedly connected to the bottom of the protective shell 1, and the top of the water inlet channel 2 is connected to the detection chamber 3, and the diaphragm plate 4 is clamped to the bottom of the inner wall of the detection chamber 3, wherein the water inlet channel 2 is used to guide the water flow into the channel of the device; the detection chamber 3 is a closed space for containing liquid and performing liquid level detection; the diaphragm plate 4 is a component used to separate the detection chamber 3 from the water inlet channel 2, which can prevent the water flow from directly impacting the iron core 6 and the coil 7, thereby protecting the device from damage.

[0033] In this embodiment, the coil 7 is clamped on the left and right sides of the protective shell 1, and the coil 7 is connected to the processing device 8 on the top. The iron core 6 has a multi-stage cylindrical cross-section, and the iron core 6 is annealed. During operation, the iron core 6 is prone to internal stress, which reduces the magnetic permeability and increases the hysteresis loss. The annealing treatment can eliminate the internal stress and restore the electromagnetic properties of the material itself; wherein, the iron core 6 can transmit and amplify the magnetic field signal, and the iron core 6 converts the change of liquid level into the change of magnetic field through the interaction with the coil 7; the coil 7 is a component used to sense the change of magnetic field.

[0034] It should be noted that the connecting plate 5 is a component used to connect the iron core 6 and the coil 7. It can transmit magnetic signals to generate suction between the iron core 6 and the coil 7, thereby performing liquid level detection.

[0035] The working principle of the above embodiment is:

[0036] See also Figure 1-3 When the utility model is detecting, first, water is guided into the detection chamber 3 through the water inlet channel 2, and then the detection chamber 3 is separated from the water inlet channel 2 by the diaphragm plate 4 to prevent the water from directly impacting the iron core 6 and the coil 7, and then the detection is performed. During the detection, the connecting plate 5 connects the iron core 6 and the coil 7 to transmit the magnetic signal, and the iron core 6 transmits and amplifies the magnetic field signal. At the same time, the coil 7 senses the change of the magnetic field in the iron core 6, thereby outputting a corresponding electrical signal, and the output electrical signal is transmitted to the processing device 8 for processing. At the same time, the float inside the sleeve 10 moves up and down with the rise and fall of the liquid level, thereby driving the connecting rod 13 to move. The detection module 16 detects the change of the liquid level by sensing the position change of the bracket 14 and the connecting rod 13, and converts the change of the liquid level into an electrical signal output to the processing device 8. The processing device 8 then transmits the two sets of data to the display screen 9, and the display screen 9 displays the liquid level height, fault prompts and other information in real time.

[0037] Beneficial effects of the above embodiments:

[0038] The liquid level detection device adopts the siphon principle for detection, so that the inside of the detection chamber 3 can quickly reflect the change of the water level, and detects through the interaction between the iron core 6 and the coil 7, so that the response speed of the device is relatively fast. In addition, through the use of the float structure, the device can adapt to various liquid media, whether in highly corrosive media or under high temperature or high pressure conditions, it can ensure its stable and reliable operation.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid level detection device, comprising a liquid level detection structure, wherein a float detection structure is provided on the left side of the liquid level detection structure; Features: The liquid level detection structure comprises a protective shell (1), a water inlet channel (2) is provided on the top of the protective shell (1), a detection chamber (3) is provided on the top of the water inlet channel (2), a diaphragm plate (4) is provided inside the detection chamber (3), a connecting plate (5) is provided on the top of the diaphragm plate (4), an iron core (6) is provided on the left and right sides of the connecting plate (5), a coil (7) is provided on the top of the iron core (6), a processing device (8) is provided on the top of the coil (7), and a display screen (9) is provided on the top of the processing device (8); The float detection structure comprises a sleeve (10) located on the left side of the protective shell (1), a water inlet (11) is provided at the bottom of the sleeve (10), and a float (12) is provided inside the sleeve (10).

2. A liquid level detection device according to claim 1, characterized in that: A connecting rod (13) is provided on the top of the floating ball (12), a bracket (14) is provided in the middle of the connecting rod (13), a supporting block (15) is provided on the top of the connecting rod (13), and a detection module (16) is provided on the top of the supporting block (15).

3. A liquid level detection device according to claim 1, characterized in that: A fixing block (17) is provided outside the processing device (8), the left side of the fixing block (17) is connected to the sleeve (10), the bottom of the fixing block (17) is connected to the protective shell (1), and the display screen (9) is snap-connected to the top of the fixing block (17).

4. A liquid level detection device according to claim 1, characterized in that: A filter screen (18) is clamped inside the water inlet channel (2), the water inlet channel (2) is fixedly connected to the bottom of the protective shell (1), and the top of the water inlet channel (2) is connected to the detection chamber (3), and the diaphragm plate (4) is clamped to the bottom of the inner wall of the detection chamber (3).

5. A liquid level detection device according to claim 1, characterized in that: The coil (7) is clamped on the left and right sides of the protective shell (1), the coil (7) is connected to the processing device (8) on the top, the iron core (6) is a multi-stage cylindrical cross-section, and the iron core (6) is annealed.

6. A liquid level detection device according to claim 2, characterized in that: The connecting rod (13) is slidably connected to the bracket (14), the bracket (14) is fixedly connected to the inside of the sleeve (10), the support block (15) is fixedly connected to the bottom of the detection module (16), and the detection module (16) is fixedly connected to the top of the sleeve (10).

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