Material level measuring instrument for desorption tower

Abstract

The utility model relates to the technical field of measuring instruments, in particular to a material level measuring instrument for a desorption tower, which comprises a mounting pipe fixedly connected to the desorption tower and communicated with the desorption tower; the loading opening is fixedly connected to the mounting pipe; the measuring instrument is movably connected to the loading opening, can be freely taken and placed from the mounting pipe, and penetrates through the mounting pipe to be inserted into the analysis tower; the mounting opening is fixedly connected to the mounting pipe and used for being connected with a high-pressure fan; an annular cavity is obliquely formed in the side wall of the mounting pipe, the cross section area of the upper portion of the annular cavity is larger than that of the lower portion of the annular cavity, and the mounting opening is communicated with the annular cavity; an outlet is formed in the position, penetrating through the mounting pipe, of the lower portion of the annular cavity and faces a measuring instrument. According to the utility model, the annular cavity is arranged to guide high-pressure air flow, so that the measuring instrument can be comprehensively cleaned, and the cleaning effect of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of measuring instrument technology, and in particular to a level measuring instrument for an analytical column. Background Technology

[0002] A level gauge is an instrument used to measure the material level inside a desorption tower to ensure the stability and safety of the tower.

[0003] Chinese Patent No. CN203329391 U discloses an analytical tower with a self-cleaning device for measuring instruments. The tower includes a tower body, on which an instrument tube with a level gauge is inserted is provided. A high-pressure air duct is connected to the wall of the instrument tube. This utility model blows high-pressure air into the instrument tube through the high-pressure air duct to blow away the resin adhering to the measuring components of the instrument, which not only ensures the normal operation of the instrument, but also eliminates the need for additional equipment.

[0004] However, in use, the above-mentioned device has only one interface for blowing in high-pressure air. Only the front side of the instrument tube facing the interface can be effectively cleaned, while the back side is not as effective as the front side, resulting in poor cleaning effect on the instrument tube. Utility Model Content

[0005] This invention proposes a level measuring instrument for analytical towers that can thoroughly clean instrument tubes, aiming to overcome the shortcomings of existing technologies.

[0006] Technical solution: A level measuring instrument for an analytical column, comprising: an installation pipe fixedly connected to the analytical column, the installation pipe being in communication with the analytical column;

[0007] The inlet is fixedly connected to the mounting pipe;

[0008] A measuring instrument is movably connected to the inlet, and the measuring instrument can be freely removed and placed from the mounting tube. The measuring instrument passes through the mounting tube and is inserted into the analytical tower.

[0009] A mounting port fixedly connected to the mounting pipe for connection with a high-pressure blower;

[0010] An annular cavity is provided inside the side wall of the mounting tube. The annular cavity is inclined, and its upper cross-sectional area is larger than its lower cross-sectional area. The mounting port communicates with the annular cavity.

[0011] The lower part of the annular cavity, through which the mounting tube passes, is designated as the outlet, with the outlet facing the measuring instrument.

[0012] In a preferred embodiment of the present invention, it further includes: a mounting plate fixedly connected inside the mounting tube;

[0013] A motor that is fixedly connected to the mounting plate;

[0014] Rotary lead screw connected to the mounting plate, the lead screw being fixed to the output end of the motor;

[0015] A guide rod fixedly connected to the mounting plate;

[0016] A retaining ring is connected between the guide rod and the lead screw. The retaining ring can block the outlet. The retaining ring is slidably connected to the guide rod and threadedly connected to the lead screw.

[0017] In a preferred embodiment of the present invention, it further includes: a telescopic sleeve fitted outside the lead screw, one end of the telescopic sleeve being fixedly connected to a retaining ring, and the other end being fixedly connected to a mounting plate.

[0018] In a preferred embodiment of the present invention, it further includes: a rubber ring fixedly connected to the retaining ring.

[0019] In a preferred embodiment of the present invention, it further includes: a rubber gasket fixedly connected to the mounting port.

[0020] In a preferred embodiment of the present invention, it further includes an anti-sticking layer disposed on the side wall of the mounting tube.

[0021] Compared with the prior art, the present invention has the following advantages: the present invention guides the high-pressure airflow through the annular cavity, so that the measuring instrument can be thoroughly cleaned, thereby improving the cleaning effect of the present invention; and the annular cavity can pressurize and accelerate the high-pressure airflow, thereby improving the cleaning quality and cleaning efficiency of the measuring instrument.

[0022] This invention features a retaining ring to seal the annular cavity, protecting it from material blockage that renders it unusable when not in use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the position and structure of the present invention on the analytical tower.

[0024] Figure 2 This is a three-dimensional sectional view of the installation tube of this utility model.

[0025] Figure 3 This is a schematic diagram of the annular cavity of this utility model.

[0026] Figure 4 This is a schematic diagram of the connection structure of the retaining ring of this utility model.

[0027] The components in the attached diagram are labeled as follows: 1. Analysis tower, 2. Mounting pipe, 3. Inlet, 4. Measuring instrument, 5. Mounting port, 6. Annular cavity, 7. Outlet, 8. Mounting plate, 9. Motor, 10. Lead screw, 11. Retaining ring, 12. Guide rod, 13. Telescopic sleeve, 14. Rubber ring, 15. Rubber pad, 16. Anti-stick layer. Detailed Implementation

[0028] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0029] Example: A level measuring instrument for a desorption tower, combined with Figures 1-3 The system includes: an installation pipe 2 fixedly installed on the top of the analytical tower 1, which is connected to the analytical tower 1; an inlet 3 fixedly installed on the top of the installation pipe 2; an insertable measuring instrument 4 placed on the inlet 3, which is stably supported by the inlet 3, allowing the measuring instrument 4 to be freely removed and placed from the installation pipe 2, and to be inserted into the analytical tower 1 through the installation pipe 2 to measure the level of matter in the analytical tower 1; an installation port 5 fixedly installed on the side of the installation pipe 2, which is used to connect to a high-pressure blower, through which the high-pressure blower blows high-pressure air into the installation pipe 2; an annular cavity 6 is provided in the side wall of the installation pipe 2, which is inclined and has a cross-sectional area at the top that is larger than that at the bottom. The installation port 5 is connected to the annular cavity 6, and the blown high-pressure air will be guided by the annular cavity 6; and an outlet 7 is provided at the bottom of the annular cavity 6 where it passes through the installation pipe 2, with the outlet 7 facing the measuring instrument 4.

[0030] Before removing the measuring instrument 4 to obtain data, fix the high-pressure blower at the mounting port 5, start the high-pressure blower, and blow high-pressure air into the mounting pipe 2. Under the guidance of the annular cavity 6, the high-pressure air blows in a ring shape towards the measuring instrument 4, so that the measuring instrument 4 can be cleaned evenly and thoroughly by the high-pressure air. The difference in cross-sectional area between the upper and lower parts of the annular cavity 6 allows the annular cavity 6 to pressurize and accelerate the high-pressure air, improving the cleaning quality and efficiency of the measuring instrument 4. After cleaning is completed, remove the measuring instrument 4 upwards to obtain data. Finally, disconnect the high-pressure blower from the mounting port 5.

[0031] Combination Figure 2 and Figure 4It also includes: a mounting plate 8 fixedly installed inside the mounting tube 2; a motor 9 fixedly installed on the mounting plate 8; a lead screw 10 rotatably installed on the mounting plate 8, the lead screw 10 being fixed to the output end of the motor 9, the lead screw 10 being a double-ended lead screw with two threads arranged in opposite directions; a guide rod 12 fixedly installed on the mounting plate 8, the guide rod 12 and the lead screw 10 being respectively located on both sides inside the mounting tube 2; a retaining ring 11 installed between the guide rod 12 and the lead screw 10, the retaining ring 11 being able to block the outlet 7, the retaining ring 11 being slidably connected to the guide rod 12 and threadedly connected to the lead screw 10, two retaining rings 11 being provided in total, the two retaining rings 11 being threadedly connected to the two threads of the lead screw 10 respectively.

[0032] Before cleaning the measuring instrument 4, start the motor 9 and rotate the lead screw 10 to remove the two retaining rings 11 from the outlet 7 and open the annular cavity 6. After cleaning the measuring instrument 4, reverse the lead screw 10 to reseal the outlet 7 with the retaining rings 11 and protect the annular cavity 6 to prevent it from being blocked by the material in the analytical tower 1, thereby ensuring the normal operation of the annular cavity 6.

[0033] Combination Figure 2 It also includes: a telescopic sleeve 13 fitted outside the lead screw 10. One end of the telescopic sleeve 13 is fixed to the retaining ring 11, and the other end is fixed to the mounting plate 8. The telescopic sleeve 13 is used to protect the lead screw 10 and prevent materials from adhering to the lead screw 10 and affecting the movement of the retaining ring 11.

[0034] Combination Figure 2 It also includes: a rubber ring 14 fixedly installed on the retaining ring 11, the rubber ring 14 being used to seal the gap between the retaining ring 11 and the outlet 7, so as to improve the sealing effect of the retaining ring 11 on the outlet 7.

[0035] Combination Figure 2 It also includes: a rubber pad 15 fixedly installed on the mounting port 5, the rubber pad 15 being used to seal the gap between the mounting port 5 and the high-pressure blower to improve the installation stability between the mounting port 5 and the high-pressure blower.

[0036] Combination Figure 2 It also includes: an anti-stick layer 16 disposed on the side wall of the installation pipe 2. The anti-stick layer 16 is used to prevent the material being removed from adhering to the inside of the installation pipe 2, thereby reducing the inconvenience of cleaning the installation pipe 2 caused by the material.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A level measuring instrument for an analytical column, characterized in that: include: An installation pipe (2) is fixedly connected to the analysis tower (1), and the installation pipe (2) is connected to the analysis tower (1); The inlet (3) is fixedly connected to the mounting pipe (2); A measuring instrument (4) is connected to the inlet (3) for measuring the level inside the analytical tower (1). The measuring instrument (4) can be freely removed from the mounting tube (2) and inserted into the analytical tower (1) through the mounting tube (2). A mounting port (5) is fixedly connected to the mounting pipe (2) for connection with a high-pressure blower; The mounting tube (2) has an annular cavity (6) inside its side wall. The annular cavity (6) is inclined and its upper cross-sectional area is larger than its lower cross-sectional area. The mounting port (5) is connected to the annular cavity (6). The lower part of the annular cavity (6) passes through the mounting tube (2) and is designated as the outlet (7), with the outlet (7) facing the measuring instrument (4).

2. The level measuring instrument for an analytical column as described in claim 1, characterized in that: Also includes: A mounting plate (8) is fixedly connected inside the mounting tube (2); A motor (9) is fixedly connected to the mounting plate (8); Rotary screw (10) connected to the mounting plate (8) is fixed to the output end of motor (9); Guide rod (12) fixedly connected to the mounting plate (8); A retaining ring (11) is connected between the guide rod (12) and the lead screw (10). The retaining ring (11) can block the outlet (7). The retaining ring (11) is slidably connected to the guide rod (12) and threadedly connected to the lead screw (10).

3. The level measuring instrument for an analytical column as described in claim 2, characterized in that: Also includes: A telescopic sleeve (13) is fitted outside the lead screw (10) to protect the lead screw (10). One end of the telescopic sleeve (13) is fixedly connected to the retaining ring (11), and the other end is fixedly connected to the mounting plate (8).

4. The level measuring instrument for an analytical column as described in claim 3, characterized in that: Also includes: A rubber ring (14) is fixedly connected to the retaining ring (11), and the rubber ring (14) is used to seal the gap between the retaining ring (11) and the outlet (7).

5. A level measuring instrument for an analytical column as described in claim 4, characterized in that: Also includes: A rubber gasket (15) is fixedly connected to the mounting port (5), and the rubber gasket (15) is used to seal the gap between the mounting port (5) and the high-pressure blower.

6. A level measuring instrument for an analytical column as described in claim 5, characterized in that: Also includes: An anti-stick layer (16) is provided on the side wall of the mounting tube (2).

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