CN2052551U

CN2052551U - Liquid-level electrode of ceramic tube

Info

Publication number: CN2052551U
Application number: CN 89202404
Authority: CN
Inventors: 王春富
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-02-28
Filing date: 1989-02-28
Publication date: 1990-02-07

Abstract

The utility model relates to a multipurpose liquid-level electrode of a ceramic tube taking the ceramic tube with high quality as an insulator between the positive and negative poles of an electrode used for measuring liquid, and the novel and multipurpose liquid-level electrode of a ceramic tube with various formats, types and structural forms can be used for flushing the dirt of the electrode at any moment. Compared with similar products, the novel and multipurpose liquid-level electrode of a ceramic tube has high heat resisting, pressure resisting and erosion resistant functions. The novel and multipurpose liquid-level electrode of a ceramic tube has the advantages of small resistance, high insulating resistance and long service life, and the novel and multipurpose liquid-level electrode of a ceramic tube can be used for sending the contact signals of the liquid level of liquid storage equipment in the industries such as various industrial boilers, petrochemical industries, sewage treatment, etc. The novel and multipurpose liquid-level electrode of a ceramic tube has reliable performance and reliable performance, and the novel and multipurpose liquid-level electrode of a ceramic tube is a practical and ideal liquid-level electrode.

Description

Liquid-level electrode of ceramic tube

The utility model belongs in the instrument and meter for automation field, a kind of new ceramics pipe assembly-type level electrode that sends conducting liquid position contact point signal in the liquid storage equipment of resistance-type level meter.Can carry out the transmission of contact point signal very reliably to the conducting liquid position in all types of industries boiler, various liquid storage equipment and the pressure vessel.

Some send the electrode that the liquid position signal is used at present.Having a common weakness, is exactly that insulator outside surface is long-pending too little, and heat resisting and pressure resisting is corrosion-resistant and insulation characterisitic is relatively poor, does not adapt to the multiple duty of all types of industries boiler and various liquid storage equipment.In use electrode (between both positive and negative polarity) insulation resistance reduces very soon, and the contact point signal that can't cut off liquid level makes the observing and controlling of display regulator table malfunctioning, does not reach the purpose that sends the liquid level contact point signal reliably.

The utility model purpose, be to manufacture and design a kind of novel insulating ceramics pipe, and design many versions such as assembling out series single-point wall rod-type, multiple spot top dress rod-type and multiple spot top dress rope formula with this, the novel very widely porcelain tube level electrode of purposes is in the hope of reaching the purpose of the liquid level contact point signal transmission that is widely used in various Industrial Boilers, liquid storage equipment, tower kind equipment.

Accompanying drawing 1 is the semisectional view of the utility model porcelain tube and common single-point wall flange gasket rod-type porcelain tube level electrode.Ceramic pipe (1), ceramic blanket (2) must adopt the high-quality ceramic sintering of high temperature high voltage resistant to form.Porcelain tube (1) ceramic glaze arranged in appearance.Do like this is conveniently to play a decisive role for the appearance fouling that prevents porcelain tube and flushing dirt.Two of part (1) and part (2) one adopts the design of cone appearance structure, and this mainly designs for strengthening mechanical seal.Its feature: because the exterior surface area of insulator increases, make the electrode insulation characteristic that bigger improvement arranged, and possesses the erosion-resisting characteristic of higher heat resisting and pressure resisting, thereby long-term work is in the higher gas-liquid of acid base concentration, possess higher anticorrosive, process structure is simple simultaneously, and production cost is lower, is a kind of pioneering renewal product very in short supply and comparatively practical in the present instrument industry.

The ceramic pipe (1) of common single-point wall flange gasket rod-type porcelain tube level electrode, ceramic blanket (2), stainless steel pipe (3), by (electrode sealing cap (4), the top of electrode stem (5) has added screw thread ］, use packing ring, engineering plastics pad, securing members such as nut are assembled into a complete level electrode.Mechanical seal between the lower end of the upper end of the lower end of part (3) and part (1) and part (1) and the part (4) is adopted 105-A type high-temperature agglomerant bonding or is adopted thin alumiseal pad to make filler.Be welded with flange gasket (6) at the first half suitable position of part (3) and just become a complete common single-point wall flange gasket rod-type porcelain tube level electrode.

Accompanying drawing 2 is the semisectional view of single-point wall connector rod-type and wash type flange gasket rod-type porcelain tube level electrode.Connector rod-type level electrode mainly is at the first half suitable position of part (3) flange gasket (6) to be changed weldering connector bolt (6).Be welded with a semicircle camber stainless steel liquid baffle board (8) in the below of connector nut (7).When part (7) is welded in equipment tower wall in perforate, the circular arc of part (8) must be gone up dorsad.If decide like this for prevent the conducting liquid spray make to the electrode porcelain tube post a letter malfunctioning.It mainly is applicable to nitrogen fertilizer plant's ammonia-cleaning tower, aeration tower, and methane recovery tower etc. are from the tower kind equipment of top feed liquor.

Wash type flange gasket rod-type porcelain tube level electrode.Mainly be on flange gasket rod-type basis, flange gasket (6) to be thickeied, and be processed with gas-liquid input screw in the left side of part (6).Be installed with pilot blast tube (9) in the below of part (6).In case the fouling of electrode outside surface more just can be adopted high compressed steam or water under high pressure easily like this, cause flange gasket gas-liquid input hole through dirt and the crystallization of part (9) on part (1), part (4) outside surface spary flushing electrode porcelain tube by connecting pipe.In time recover the function that electrode sends contact point signal.Kind electrode is when being used for the transmission of small nitrogenous fertilizer plant carbonators (being ammonium bicarbonate solution in the tower) liquid level contact point signal.As the insulation resistance of finding electrode only needs several seconds are opened in flushing valve when descending, and just can get rid of electrode pair ground short circuit fault soon, the insulation characterisitic of raising electrode.This is a kind of comparatively desirable novel porcelain tube level electrode that for this reason designs at present.The porcelain tube electrode of these three kinds of wall rod-types is characterized in that: can be widely used in showing the transmission of height at the liquid level contact point signal of the medium-and-large-sized tower class liquid storage equipment more than 800 millimeters.And each point do not disturb mutually, and it is very convenient that maintaining is changed.

Accompanying drawing 3 is the cut-open views that utilize a kind of multiple spot top dress rod-type porcelain tube liquid level contact point signal transmitter of the utility model design and installation.It mainly be with Industrial Boiler with the supporting contact point signal transmitter of double-colored liquid level pressure digital display adjustment control, pick up the different electrode stem of three assembly (5) length and be assemblied in simultaneously on the tubular type blind flange (3), be encapsulated in the liquid level staving.Part (1) since long-term work in gaseous state, can scaling.So make the insulating property of this device very reliable.Mainly be applicable to all types of industries boiler, and show that height sends at the contact point signal of all kinds of liquid storage equipment below 800 millimeters.

Accompanying drawing 4 is cut-open views of multiple spot top dress rope formula liquid level contact point signal transmitter.End at part (5) is processed with screw thread, the rope formula lead (10) and the limit terminal head (11) that are uneven in length in order to connection.Be applicable to that mainly various large-scale and ultra-large type liquid storage equipment and tower wall can't perforate install the tower cabinet kind equipment of single-point wall rod-type electrode.Send the demonstration height and can in 1 to 50 meter scope, select the location.

Claims

1, a kind of employing insulating ceramics pipe (1), ceramic blanket (2) make to survey the novel porcelain tube level electrode of multiple spot top dress rod-type of insulator between liquid electrode both positive and negative polarity.It is characterized in that: ceramic pipe (1), ceramic blanket (2)

And the junction between the tubular type blind flange (3), electrode sealing cap (4) adopts the cone structure design, and adopts cementing agent or thin aluminium pad to do airtight and watertight padding.Ceramic pipe (1) the high-quality ceramic glaze arranged in appearance.And the electrode stem (5) of many different lengths is assemblied on the tubular type blind flange (3) simultaneously.

2, a kind of employing insulating ceramics pipe (1), ceramic blanket (2) make to survey the novel porcelain tube level electrode of single-point wall rod-type of insulator between liquid electrode both positive and negative polarity.It is characterized in that: the cone structure design is adopted in the junction between ceramic pipe (1), ceramic blanket (2) and stainless steel pipe (3), the electrode sealing cap (4), and adopts cementing agent or thin aluminium pad to do airtight and watertight padding.Ceramic pipe (1) the high-quality ceramic glaze arranged in appearance.And the electrode stem (5) of certain-length is assemblied on the stainless steel pipe (3).

3, novel porcelain tube level electrode according to claim 2.It is characterized in that: at the first half suitable position of stainless steel pipe (3), welding flange pad or connector bolt (6).

4, novel porcelain tube level electrode according to claim 2.It is characterized in that: be welded with a stainless steel semicircular arc liquid baffle board (8) in the bottom that connects head nut (7).

5, novel porcelain tube level electrode according to claim 2.It is characterized in that: the side at flange gasket (6) has flushing gas-liquid input screw, and the lower end of center pit is installed with pilot blast tube (9).

6, a kind of employing insulating ceramics pipe (1), ceramic blanket (2) make to survey the novel porcelain tube level electrode of multiple spot top dress rope formula of insulator between liquid electrode both positive and negative polarity.It is characterized in that: the cone structure design is adopted in the junction between ceramic pipe (1), ceramic blanket (2) and tubular type blind flange (3), the electrode sealing cap (4), and adopts cementing agent or thin aluminium pad to do airtight and watertight padding.Ceramic pipe (1) the high-quality ceramic glaze arranged in appearance.And the electrode stem (5) of many equal in length is assemblied on the tubular type blind flange (3) simultaneously, the end of electrode stem (5) is processed with screw thread, rope formula lead (10) and limit termination (11) of not waiting in order to regular length.