Throw-in type liquid level transmitter with anti-corrosion structure

Abstract

The utility model relates to the technical field of throw-in type liquid level transmitters with anti-corrosion structures, in particular to a throw-in type liquid level transmitter with an anti-corrosion structure, which comprises a sensor arranged at the inner bottom of a base shell, a sensor pressing ring arranged at the top of the sensor, a silica gel rubber plug arranged at the top of the sensor pressing ring, and an anti-corrosion layer arranged at the bottom of the base shell. The cable penetrates through the sensor compression ring and is connected with the sensor; an anti-corrosion connector is arranged in the middle of the connecting flange, the connecting flange is installed at the top of the anti-corrosion connector, the top of the connecting flange is connected with the shell, and an analysis system with a displayer is installed in the shell; the throw-in type liquid level transmitter with the anti-corrosion structure has the advantages that the spiral permeable plug is installed in the middle of the bottom of the base shell, then the sensor is installed at the bottom of the interior of the base shell along the top of the sensor, the sensor is made of ceramic materials, and the corrosion resistance of the sensor is greatly enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of a immersion type liquid level transmitter with an anti-corrosion structure, in particular to a immersion type liquid level transmitter with an anti-corrosion structure. Background Art

[0002] The liquid level transmitter uses a high-performance pressure sensor as a measuring element. Through the pressure sensor, the static pressure of the liquid, which is proportional to the liquid level depth, is accurately measured, and converted into a standard (current, voltage or digital) signal output through a dedicated signal conditioning circuit, establishing a linear correspondence between the output signal and the liquid depth, thereby achieving accurate measurement of the liquid depth.

[0003] However, most of the existing detection ends of the submersible liquid level transmitters have poor corrosion resistance. When detecting corrosive liquids, the liquids are likely to corrode the detection ends, thus reducing the service life of the detection ends.

[0004] Therefore, we provide a submersible liquid level transmitter with an anti-corrosion structure to solve the problem of poor sealing and corrosion of existing submersible liquid level transmitters. Utility Model Content

[0005] The purpose of the utility model is to provide a submersible liquid level transmitter with an anti-corrosion structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sensor is arranged at the inner bottom of the base shell, a sensor pressure ring is arranged at the top of the sensor, a silicone plug is arranged on the top of the sensor pressure ring, and a cable passes through the sensor pressure ring to be connected with the sensor; and a connecting flange, an anti-corrosion joint is arranged in the middle of the connecting flange, a connecting flange is installed on the top of the anti-corrosion joint, the top of the connecting flange is connected to the shell, and an analysis system with a display is installed in the shell.

[0007] Preferably, a spiral water-permeable plug is provided in the middle of the bottom of the base shell, a silicone plug is inserted on the top of the base shell, an upper shell is inserted on the top of the silicone plug, and the base shell, silicone plug, upper shell and spiral water-permeable plug constitute the liquid probe head as a whole.

[0008] Preferably, the bottom of the silicone plug is in close contact with the sensor pressure ring, and the cable can press the sensor pressure ring so that the sensor pressure ring presses the sensor at the bottom of the sensor pressure ring to prevent liquid from entering the liquid probe head along the gap between the sensor and the base shell.

[0009] Preferably, one end of the cable is connected to the sensor in the liquid probe, and the other end extends from the top of the upper shell and is inserted into the shell on the base shell on the top of the connecting flange, and is connected to a display analysis system installed in the shell.

[0010] Preferably, two groups of annular grooves are formed at the bottom end of the connecting shell, and O-rings are installed in the annular grooves. The O-rings can seal the connection between the connecting shell and the base shell to prevent liquid from entering the liquid probe head through the gap.

[0011] Preferably, a silicone plug is provided in the middle of the bottom end of the connecting shell, and the silicone plug surrounds the cable. A compression joint is provided in the top of the connecting shell, and the compression joint can compress the silicone plug to prevent the silicone plug from loosening.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model proposes a immersion liquid level transmitter with an anti-corrosion structure. First, a spiral water-permeable plug is installed in the middle of the bottom of the base shell, and then the sensor is installed on the inner bottom of the base shell along the top of the sensor. The sensor is made of ceramic material, which greatly enhances the corrosion resistance of the sensor. Then, the sensor pressure ring is installed in the sensor so that the bottom of the sensor pressure ring is close to the sensor pressure ring. Then, O-rings are installed in two groups of annular grooves opened around the bottom of the connecting shell. Then, the connecting shell is plugged into the sensor, and the sensor is connected to the connecting shell. The O-ring is made of fluororubber material and has strong corrosion resistance. A double rubber ring sealing method is used to seal the connection between the sensor and the connecting shell to prevent liquid from entering through the gap. Then, the upper shell is plugged into the top of the connecting shell. The bottom compression joint of the upper shell starts to compress the middle of the connecting shell with a silicone plug, and the cable wrapped in the middle of the silicone plug is compressed and fixed; the base shell, the connecting shell, and the upper shell are all made of polytetrafluoroethylene material and have strong corrosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a perspective structural diagram of the utility model;

[0015] Figure 2 This is a perspective structural diagram of the liquid probe head of the utility model;

[0016] Figure 3 This is a perspective structural diagram of the connecting shell of the utility model.

[0017] In the figure: base shell 1, sensor 2, sensor pressure ring 3, cable 4, silicone plug 5, O-ring 6, connecting shell 7, compression joint 8, upper shell 9, spiral water-permeable plug 10, anti-corrosion joint 11, connecting flange 12, base shell 13, shell 14. DETAILED DESCRIPTION

[0018] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0019] See also Figures 1 to 3 The utility model provides a technical solution: a sensor 2 is arranged at the bottom of the inner part of the base shell 1, a sensor pressure ring 3 is arranged at the top of the sensor 2, a silicone plug 5 is arranged at the top of the sensor pressure ring 3, a cable 4 passes through the sensor pressure ring 3 and is connected to the sensor 2; and a connecting flange 12, an anti-corrosion joint 11 is arranged in the middle of the connecting flange 12, a connecting flange 12 is installed on the top of the anti-corrosion joint 11, the top of the connecting flange 12 is connected to a shell 14, and an analysis system with a display is installed in the shell 14; a spiral water-permeable plug 10 is arranged in the middle of the bottom of the base shell 1, a silicone plug 5 is plugged into the top of the base shell 1, an upper shell 9 is plugged into the top of the silicone plug 5, and the base shell 1, the silicone plug 5, the upper shell 9 and the spiral water-permeable plug 10 form a liquid probe head as a whole; the bottom of the silicone plug 5 is in close contact with the sensor pressure ring 3, and the cable 4 can press the sensor pressure ring 3 The sensor pressure ring 3 is held so that the sensor 2 at the bottom of the sensor pressure ring 3 is pressed tightly to prevent the liquid from entering the liquid probe head along the gap between the sensor 2 and the base shell 1; one end of the cable 4 is connected to the sensor 2 in the liquid probe head, and the other end extends from the top of the upper shell 9 and is inserted into the shell 14 on the base shell 13 at the top of the connecting flange 12, and is connected to the display analysis system installed in the shell 14; two groups of annular grooves are provided at the bottom end of the connecting shell 7, and O-rings 6 are installed in the annular grooves. The O-rings 6 can seal the connection between the connecting shell 7 and the base shell 1 to prevent the liquid from entering the liquid probe head from the gap; a silicone plug 5 is provided in the middle of the bottom end of the connecting shell 7, and the silicone plug 5 surrounds the cable 4. A compression joint 8 is provided at the top of the connecting shell 7, and the compression joint 8 can compress the silicone plug 5 to prevent the silicone plug 5 from loosening.

[0020] In actual use, first install the spiral water-permeable plug 10 in the middle of the bottom of the base shell 1, and then install the sensor 2 along the top of the sensor 2 at the inner bottom of the base shell 1. The sensor 2 is made of ceramic material, which greatly enhances the corrosion resistance of the sensor 2. Then install the sensor pressure ring 3 into the sensor 2 so that the bottom of the sensor pressure ring 3 is close to the sensor pressure ring 3. Then install the O-ring 6 in the two groups of annular grooves opened around the bottom of the connecting shell 7, and then insert the connecting shell 7 into the sensor 2, and connect the sensor 2 to the connecting shell 7. The O-ring 6 is made of fluororubber and has strong corrosion resistance. It uses a double rubber ring sealing method to seal the connection between the sensor 2 and the connecting shell 7. , to prevent liquid from entering through the gap, and then insert the upper shell 9 on the top of the connecting shell 7. The bottom compression joint 8 inside the upper shell 9 starts to compress the silicone plug 5 set in the middle of the connecting shell 7, and compresses and fixes the cable 4 wrapped in the middle of the silicone plug 5; the base shell 1, the connecting shell 7, and the upper shell 9 are all made of polytetrafluoroethylene material, which has strong corrosion resistance; when in use, the liquid probe is inserted into the detection liquid, and the liquid contacts the sensor 2 through the spiral water-permeable plug 10. The sensor 2 transmits the detection information through the cable 4 to the shell 14 on the base shell 13 installed on the top of the anti-corrosion joint 11 in the middle of the connecting flange 12. The analysis system analyzes the detection information and displays the detection results on the display.

[0021] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A submersible liquid level transmitter with an anti-corrosion structure, characterized in that: include: A sensor (2) is arranged at the bottom of the base housing (1), a sensor pressure ring (3) is arranged at the top of the sensor (2), a silicone rubber plug (5) is arranged at the top of the sensor pressure ring (3), and a cable (4) passes through the sensor pressure ring (3) and is connected to the sensor (2); a spiral water-permeable plug (10) is arranged at the middle of the bottom of the base housing (1), a silicone rubber plug (5) is inserted at the top of the base housing (1), an upper housing (9) is inserted at the top of the silicone rubber plug (5), and the base housing (1), the silicone rubber plug (5), the upper housing (9) and the spiral water-permeable plug (10) form a liquid probe as a whole; and The bottom of the silicone rubber plug (5) is tightly attached to the sensor pressing ring (3), and the cable (4) can press the sensor pressing ring (3) so that the sensor pressing ring (3) presses the sensor (2) at the bottom of the sensor pressing ring (3) to prevent liquid from entering the liquid probe through the gap between the sensor (2) and the base housing (1); A connecting shell (7), wherein two groups of annular grooves are formed at the bottom of the connecting shell (7), and an O-ring (6) is installed in the annular groove. The O-ring (6) can seal the connection between the connecting shell (7) and the base shell (1) to prevent liquid from entering the liquid probe head through the gap; A silicone rubber plug (5) is provided in the middle of the bottom end of the connection housing (7), and the silicone rubber plug (5) surrounds the cable (4). A compression joint (8) is provided in the top of the connection housing (7), and the compression joint (8) can compress the silicone rubber plug (5) to prevent the silicone rubber plug (5) from loosening. A connecting flange (12) is provided in the middle of the connecting flange (12) with an anti-corrosion joint (11), a connecting flange (12) is installed on the top of the anti-corrosion joint (11), the top of the connecting flange (12) is connected to a shell (14), and an analysis system with a display is installed in the shell (14).

2. The submersible liquid level transmitter with an anti-corrosion structure according to claim 1 is characterized in that: One end of the cable (4) is connected to the sensor (2) in the liquid probe, and the other end extends from the top of the upper shell (9) and is inserted into a shell (14) on the base shell (13) at the top of the connecting flange (12), and is connected to a display analysis system installed in the shell (14).

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