阅读说明：本技术 一种电极式防尘料位计 (Electrode type dustproof charge level indicator ) 是由 王伟兴 斛小晋 沈翰 时国方 于 2019-11-11 设计创作，主要内容包括：本发明提供了一种电极式防尘料位计,包括：电极、基座、第一隔离管和第一进气孔；所述第一隔离管套设于所述电极的主体部外侧,所述第一隔离管的上端与所述基座密闭连接,所述第一隔离管的内壁与所述主体部界定形成包围所述主体部的第一气流通道,所述第一气流通道沿所述第一隔离管的轴线方向延伸至所述第一隔离管的下端面；所述第一进气孔设于所述基座上并与所述第一气流通道连通,所述第一进气孔用于与供气装置连接并将气流导入到所述第一气流通道中。本发明通过第一隔离管的设置,在电极的外侧形成第一气流通道,经供气装置供气和可以形成气流隔离层,从而起到防止粉尘粘附、耐腐蚀、耐高温的效果。(The invention provides an electrode type dustproof charge level indicator, which comprises: the electrode, the base, the first isolation pipe and the first air inlet hole; the first isolation pipe is sleeved outside the main body part of the electrode, the upper end of the first isolation pipe is hermetically connected with the base, the inner wall of the first isolation pipe and the main body part define a first air flow channel surrounding the main body part, and the first air flow channel extends to the lower end face of the first isolation pipe along the axial direction of the first isolation pipe; the first air inlet hole is arranged on the base and communicated with the first air flow channel, and the first air inlet hole is used for being connected with an air supply device and guiding air flow into the first air flow channel. According to the invention, the first air flow channel is formed on the outer side of the electrode through the arrangement of the first isolation pipe, and the air is supplied by the air supply device to form the air flow isolation layer, so that the effects of dust adhesion prevention, corrosion resistance and high temperature resistance are achieved.)

1. An electrode type dustproof material level meter is used for carrying out material level measurement on materials filled in a container and is characterized by comprising:

the electrode comprises a wiring part, a mounting part and a main body part, wherein the wiring part and the main body part are respectively connected to two ends of the mounting part;

the base is provided with a mounting hole, the base is sleeved outside the electrode through the mounting hole, and the mounting part of the electrode is matched and fixedly connected with the inner wall of the mounting hole;

the first isolation pipe is sleeved outside the main body part of the electrode, the upper end of the first isolation pipe is hermetically connected with the base, the inner wall of the first isolation pipe and the main body part define a first air flow channel surrounding the main body part, and the first air flow channel extends to the lower end face of the first isolation pipe along the axial direction of the first isolation pipe;

the first air inlet hole is arranged on the base and communicated with the first air flow channel, and the first air inlet hole is used for being connected with an air supply device and guiding air flow into the first air flow channel.

2. The level gauge according to claim 1, wherein the mounting hole comprises a first through hole, a second through hole and a third through hole which are coaxially arranged and sequentially connected, and the inner wall of the first through hole is matched and fixed with the mounting part to fix the electrode.

3. The level gauge according to claim 2, wherein the second through hole has a smaller diameter than the third through hole, and an inner wall of the third through hole defines with the main body a mounting groove for mounting the first isolating pipe.

4. The level gauge according to claim 3, wherein the upper end of the first isolation tube is bent outwards to form an interference part matched with the top wall of the installation groove, and the interference part is hermetically connected with the top wall of the installation groove through a fixing part.

5. The level gauge according to claim 4, wherein the fixing member is sleeved outside the first isolation pipe and is matched with the mounting groove to fix the first isolation pipe.

6. The level gauge according to claim 1, wherein a second isolation tube is sleeved outside the first isolation tube, and the upper end of the second isolation tube is hermetically connected with the base.

7. The level gauge according to claim 6, wherein a second air flow channel is defined between the second isolation tube and the first isolation tube, a second air inlet hole communicated with the second air flow channel is formed in a side wall of the second isolation tube, and the second air inlet hole is used for being connected with an air supply device and guiding air flow into the second air flow channel.

8. The level gauge according to claim 7, wherein the second air flow passage surrounds an outside of the first separation tube and extends to a lower end surface of the second separation tube in an axial direction of the second separation tube.

9. The level gauge according to claim 1, wherein the wire connecting portion is located outside the mounting hole, and an outer side of the wire connecting portion is covered with a cover body that is fitted and fixed to the base.

10. The level gauge according to claim 1, wherein the outer surface of the electrode is provided with a teflon and/or silica gel coating.

Technical Field

The invention belongs to the technical field of material level measurement, and particularly relates to an electrode type dustproof material level meter.

Background

Carbon black is conveyed to a powdery carbon black storage tank for storage in the carbon black production process and then enters a granulator for granulation, the storage amount of the carbon black in the powdery carbon black storage tank cannot be continuously measured on line, and segmented and hierarchical detection is carried out through an electrode type material level meter or a rotation-resistant type material level meter at present. The carbon black dust is easy to adhere to the electrode and the insulating layer of the level gauge, and the carbon black dust has certain conductivity, so that the electrode and the tank body form a short circuit through the adhered carbon black dust, the electrode fails, and the position of the material in the storage tank cannot be judged. Therefore, it is necessary to periodically clean the carbon black dust adhering to the electrodes and the insulating layer of the level gauge. The insulating layer of the electrode type level indicator is easily deformed or cracked under the influence of corrosive gas and high temperature in the storage tank, and the adhered carbon black dust is more difficult to clean after deformation.

Therefore, there is a need for a new level gauge that addresses the above-mentioned technical problems.

Disclosure of Invention

The invention aims to provide an electrode type dustproof material level meter which can effectively prevent dust adhesion, is corrosion-resistant and high-temperature-resistant, and aims to solve the problems in the prior art.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

an electrode-type dust-proof level indicator for measuring the level of a material filled in a container, comprising:

the electrode comprises a wiring part, a mounting part and a main body part, wherein the wiring part and the main body part are respectively connected to two ends of the mounting part;

the base is provided with a mounting hole, the base is sleeved outside the electrode through the mounting hole, and the mounting part of the electrode is matched and fixedly connected with the inner wall of the mounting hole;

the first isolation pipe is sleeved outside the main body part of the electrode, the upper end of the first isolation pipe is hermetically connected with the base, the inner wall of the first isolation pipe and the main body part define a first air flow channel surrounding the main body part, and the first air flow channel extends to the lower end face of the first isolation pipe along the axial direction of the first isolation pipe;

the first air inlet hole is arranged on the base and communicated with the first air flow channel, and the first air inlet hole is used for being connected with an air supply device and guiding air flow into the first air flow channel.

Further, the mounting hole includes coaxial setting and consecutive first through-hole, second through-hole and third through-hole, the inner wall of first through-hole with the installation department cooperation is fixed the electrode.

Further, the aperture of the second through hole is smaller than that of the third through hole, and the inner wall of the third through hole and the main body part define a mounting groove for mounting the first isolation pipe.

Further, the upper end of first spacer tube outwards buckle form with the roof matched with conflict portion of mounting groove, conflict portion pass through the mounting with the roof sealing connection of mounting groove.

Furthermore, the fixing piece is sleeved on the outer side of the first isolation pipe and matched with the mounting groove to fix the first isolation pipe.

Furthermore, the outside cover of first isolation pipe is equipped with the second isolation pipe, the upper end of second isolation pipe with base sealing connection.

Furthermore, a second air flow channel is defined between the second isolation pipe and the first isolation pipe, a second air inlet communicated with the second air flow channel is formed in the side wall of the second isolation pipe, and the second air inlet is used for being connected with an air supply device and guiding air flow into the second air flow channel.

Further, the second airflow channel surrounds the outer side of the first isolation pipe and extends to the lower end face of the second isolation pipe along the axial direction of the second isolation pipe.

Furthermore, the wiring portion is located the outside of mounting hole, the outside cover of wiring portion be equipped with the cover body that the base cooperation is fixed.

Furthermore, a Teflon and/or silica gel coating is arranged on the outer surface of the electrode.

The invention has the beneficial effects that:

compared with the prior art, the electrode type dustproof material level meter is provided with the first isolation pipe and the second isolation pipe on the outer side of the electrode to form the first airflow channel and the second airflow channel, and the double-layer isolation airflow layer is formed after air is supplied to the first airflow channel and the second airflow channel through the air supply device; the isolation airflow layer can prevent dust from adhering to the electrode and prevent corrosive gas in the storage tank from corroding the insulating coating on the outer surface of the electrode; and the sweeping effect of the air flow can also take away heat to play a role in cooling, so that the service life of the charge level indicator is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of one embodiment of the present application;

FIG. 2 is a schematic diagram of a portion of the structure of the embodiment shown in FIG. 1;

fig. 3 is another partial schematic structural view of the embodiment shown in fig. 1.

Description of reference numerals: 10. an electrode; 11. a wiring portion; 12. an installation part; 13. a main body portion; 20. a base; 21. a first through hole; 22. a second through hole; 23 a third via hole; 24. a first air intake hole; 30. a first isolation tube; 31. a contact part; 32. a first air flow passage; 40. a second isolation tube; 41. a second airflow channel; 42. a second air intake hole; 43. a three-way pipe; 44. a reducer pipe; 50. a cover body; 61. a gland; 62. a backing ring; 63. a rubber gasket; 64. the metal prevents the swell ring.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In the illustrated embodiment, directional references, i.e., up, down, left, right, front, rear, etc., are relative to each other and are used to explain the relative structure and movement of the various components in the present application. These representations are appropriate when the components are in the positions shown in the figures. However, if the description of the location of an element changes, it is believed that these representations will change accordingly.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an electrode type dust-proof level gauge according to an embodiment of the present invention includes: electrode 10, base 20, enclosure 50, first isolation tube 30 and second isolation tube 40.

Referring to fig. 2, the electrode 10 is made of a corrosion-resistant conductive material. The wiring part 11 and the main body part 13 are respectively formed by extending the mounting part 12 to two ends along the axis of the mounting part 12, and threads are arranged on the outer surface of the mounting part 12. An insulating coating which completely covers the main body part 13 is arranged on the outer surface of the electrode 10, and the coating is a high-temperature-resistant Teflon and/or silica gel coating. The lower end of the body portion 13 of the electrode 10 may also be circumscribed or suspended by a conductive member to increase the measurement depth of the level gauge. Specifically, the electrode 10 was made of 36L stainless steel, the length of the electrode 10 was 1.75m, the diameter of the mounting portion 12 of the electrode 10 was 16mm, the diameter of the main body 13 of the electrode 10 was 20mm, and the thickness of the coating was 0.2 mm.

The base 20 is provided with a mounting hole penetrating through the top wall and the bottom wall thereof, the base 20 is sleeved outside the mounting part 12 and the main body part 13 of the electrode 10 through the mounting hole, and the wiring part 11 of the electrode 10 is positioned outside the mounting hole. The mounting hole includes coaxial setting and consecutive first through-hole 21, second through-hole 22 and third through-hole 23, and the aperture of first through-hole 21 is less than the aperture of second through-hole 22, and the aperture of second through-hole 22 is less than the aperture of third through-hole 23. Specifically, the base 20 is made of polytetrafluoroethylene, the length of the base 20 is 80mm, the aperture of the first through hole 21 is 16mm, the aperture of the second through hole 22 is 24mm, and the aperture of the third through hole 23 is 42 mm.

The inner wall of the first through hole 21 is provided with a screw thread to be engaged with the mounting portion 12 for fixing the electrode 10 to the base 20. The outer side of the mounting part 12 of the electrode 10 is sleeved with a sealing gasket matched with the top wall of the second through hole 22 and the top of the main body part 13, and the sealing gasket is extruded by screwing the mounting part 12 so as to realize the airtight connection between the mounting part 12 and the mounting hole. An annular chamber is defined between the inner wall of the second through hole 22 and the main body portion 13 of the electrode 10. On the outer side wall of the base 20 corresponding to the annular chamber, a first air inlet hole 24 penetrating to the annular chamber is opened, and the first air inlet hole 24 is used for connecting with an air supply device. An annular mounting groove is defined between the inner wall of the third through hole 23 and the main body 13 of the electrode 10, and the mounting groove is used for mounting the first isolation tube 30. Specifically, the air supply device may be an air storage tank, an air compressor, or the like.

The cover 50 is mounted on the base 20, and the inner wall of the cover 50 and the side wall of the base 20 are provided with matching threads, so that the cover 50 can be fixed on the base 20 and cover the outer side of the wiring part 11. The outer wall of the cover body 50 is provided with a wiring hole penetrating into the cover body 50. Specifically, the cover 50 is made of polycarbonate.

The upper end of the first isolation tube 30 is bent outward to form an annular interference portion 31 which is engaged with the top wall of the mounting groove. The first isolation tube 30 is sleeved outside the main body 13 of the electrode 10, and makes the contact portion 31 contact with the top wall of the mounting groove. The inner wall of the first isolation pipe 30 and the main body 13 define a first air flow passage 32 surrounding the main body 13, and the first air flow passage 32 extends to the lower end surface of the first isolation pipe 30 along the axial direction of the first isolation pipe 30 and communicates with the first air intake holes 24. Specifically, the first isolation tube 30 is a polytetrafluoroethylene tube provided coaxially with the main body 13 of the electrode 10, and the first isolation tube 30 has an inner diameter of 22mm and a thickness of 1 mm.

The outer side of the first isolation tube 30 is sleeved with fixing pieces such as a gland 61, a backing ring 62, a rubber gasket 63 and a metal anti-expansion ring 64 which are matched with the mounting groove. Wherein, the metal is prevented that the expanded ring 64 is pressed close to the outside setting of first isolation tube 30, and the outside of the expanded ring 64 is prevented to the metal then to the cover locating of rubber packing ring 63, and the metal is prevented that the upper end of expanded ring 64 and rubber packing ring 63 offsets with the conflict portion 31 of first isolation tube 30, and the lower extreme of expanded ring 64 and rubber packing ring 63 offsets is prevented to backing ring 62 and metal, and the upper end and the backing ring 62 of gland 61 offset. The outer surface of the gland 61 and the inner wall of the mounting cavity are provided with matching threads, and the rubber gasket 63 and the abutting part 31 are extruded by screwing the gland 61, so that the first isolation pipe 30 and the base 20 are hermetically connected. Meanwhile, the arrangement of the metal expansion-preventing ring 64 can prevent the rubber gasket 63 from being radially expanded after being extruded, so that the first isolation pipe 30 is deformed.

Referring to fig. 3, the second isolation tube 40 is sleeved outside the first isolation tube 30, and the upper end of the second isolation tube 40 is hermetically connected to the base 20. The lower end of the second isolation tube 40 is flush with the lower end of the first isolation tube 30. A second gas flow passage 41 surrounding the outside of the first separation pipe 30 is defined between the inner wall of the second separation pipe 40 and the first separation pipe 30, and the second gas flow passage 41 extends to the lower end face of the second separation pipe 40 in the axial direction of the second separation pipe 40. A second air inlet hole 42 communicated with the second air flow channel 41 is formed in the side wall of the second isolation pipe 40, and the second air inlet hole 42 is used for being connected with an air supply device and is configured to be capable of guiding air flow into the second air flow channel 41. Specifically, the second isolation tube 40 is a 304 stainless steel tube disposed coaxially with the first isolation tube 30.

In the present embodiment, the second isolation pipe 40 is formed by combining a tee pipe 43 and a reducer pipe 44. The lower end of the main pipe of the three-way pipe 43 is fixedly connected with the upper end of the reducer pipe 44 through a flange, and the joints of the flange, the three-way pipe 43 and the reducer pipe 44 are sealed, for example, by welding. The upper end of the main pipe of the three-way pipe 43 is fixedly connected with the lower end of the base 20 through a flange, and the joint is sealed. The branch of the tee pipe 43 serves as the second intake hole 42. Specifically, the three-way pipe 43 is made of 304 stainless steel, the inner diameter of a main pipe of the three-way pipe 43 is 57mm, and the inner diameter of a branch pipe is 15 mm; the reducing pipe is made of 304 stainless steel, and the maximum inner diameter of the reducing pipe is 57mm, and the minimum inner diameter of the reducing pipe is 45 mm.

The electrode 10 type dustproof material level meter provided by the invention is further explained by combining a specific use scene.

During the use, with the vertical installation on the material storage tank of charge level indicator to make the lower extreme of second isolation tube 40 stretch into in the material storage tank. The first air inlet hole 24 and the second air inlet hole 42 are respectively connected with an air supply device, the air supply device is started, air flow is guided into the first air flow channel 32 and the second air flow channel 41 through the first air inlet hole 24 and the second air inlet hole 42, the air pressure is adjusted to be not less than 0.005MPa, and the air flow is adjusted to be not less than 0.2m³H is used as the reference value. The airflows flowing through the first airflow channel 32 and the second airflow channel 41 are made to be outside the main body portion 13 of the electrode 10 and the first separator tube 30, respectively, and form a double-layered separation airflow layer surrounding the main body portion 13 of the electrode 10 and the first separator tube 30, which separates the dust from the main body portion 13.

According to the electrode 10 type dustproof material level meter, the first isolation pipe 30 and the second isolation pipe 40 are arranged on the outer side of the electrode 10 to form the first airflow channel 32 and the second airflow channel 41, and a double-layer isolation airflow layer is formed after air (air, nitrogen, carbon dioxide, inert gas and the like) is supplied to the first airflow channel 32 and the second airflow channel 41 through the air supply device; under the sweeping action of the isolation airflow layer, not only can dust be prevented from being adhered to the electrode 10, but also corrosive gas in the storage tank can be prevented from corroding an insulating coating on the outer surface of the electrode 10; and the sweeping effect of the air flow can also take away heat to play a role in cooling, so that the service life of the charge level indicator is prolonged.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.