CN202778068U

CN202778068U - Metal screw post filter net

Info

Publication number: CN202778068U
Application number: CN 201220476900
Authority: CN
Inventors: 刘云德; 孟兆成; 宋程文
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-19
Filing date: 2012-09-19
Publication date: 2013-03-13
Anticipated expiration: 2022-09-19

Abstract

The utility model relates to a metal screw post filter net, solving the problems that the production cost in the prior art is high, and the drinking water is easily polluted. The metal screw post filter net is characterized by the metal screw post filter net is in a cylindrical structure and comprises a core tube, a screw filter net and binding wires, wherein the core tube is arranged on the center; the screw filter net is formed by winding metal wires which are wound to be square spring shaped on the core tube; the part contacting the metal wires with the core tube is welded on the core tube; the binding wires are wound on the screw filter net, and welded on the metal wires contacting with the binding wires; the outer sides of the adjacent two rings of the screw filter are lapped with each other; and the binding wires are wound and welded at the outside lapped arts by lead-free soldering. The metal screw post filter net has the advantages of low production cost, non-toxicity and environment friendliness, and the like, can effectively achieve an air bubble floating effect after cutting and a dirt precipitating effect after knocking, and is extensively used for gas exhaustion and blow-down valves of devices such as urban water supply equipment, heat supply equipment and central air-conditioner.

Description

Metal spiral post filter screen

Technical field

The utility model relates to used accessory in a kind of urban water supply, the heating system equipment, particularly a kind of metal spiral post filter screen.

Background technology

At present, have bubble in the pipeline in the existing water-supply systems exhaust blowdown process, cause system works unstable, cause simultaneously equipment oxide etch, shortened equipment life; Same also exists a same difficult problem at urban heating system, solar water supply equipment etc., therefore, the filtering exhaust device must be installed in system, the air in the effective discharge line, the dangerous and trouble that just can avoid above technical barrier to cause.

Traditional filtering exhaust device, adopt stainless steel drift to roll original paper as the filler of cutting bubble in the above equipment and precipitation dirt, this filler cost is high, volume is large, weight is large, add that to occupy in tank, the valve space in the tank body large, the flow velocity of water is increased, affect the effect of bubble cutting and deposition of dirt, this packing volume causes greatly the volume of tank body to strengthen simultaneously, causes the production cost of equipment to improve; On the equipment that also has in addition with iron filings or plastic products as filler, not only effect is bad, also causes the pollution of drinking water.

The utility model content

The technical problems to be solved in the utility model is the defects that how to overcome prior art, and a kind of metal spiral post filter screen is provided, and not only the exhaust filth-discharging effect is good as filler, and cost is low, and is simple in structure and be easy to install.

For solving the problems of the technologies described above, this metal borded pile filter screen, it is characterized in that, described metal spiral post filter screen is cylindrical structure, comprise the core pipe, spiral screen pack and binding silk, described core pipe is positioned at the center, described spiral screen pack is by the wire that is wound in square spring-like, be entwined at the core pipe, the part that wire contacts with the core pipe is welded on the core pipe, described welded wire is the limit of square spring in the part of core pipe, the limit of the square spring relative with this limit is the outside that is positioned on the excircle of spiral screen pack, the outside of spiral screen pack two adjacent rings overlaps mutually, and described binding silk is wrapped on the spiral screen pack, and is welded on the wire that is in contact with it.

So design the spiral screen pack is fixed, and then so that whole metal spiral post filter screen has higher intensity.

As optimization, described binding silk twines and is welded on by Pb-free solder the outside lap-joint of spiral screen pack two adjacent rings.So design, asepsis environment-protecting and use are firmly.

As optimization, described outside lap-joint length is 2-4mm.So design is convenient to consist of and is conducive to the network structure that precipitates after the come-up and dirt bump after the bubble cutting, effectively block sewage gas, dirt.

As optimization, it is the wire of 0.5mm-0.6mm that described spiral screen pack and binding silk adopt diameter.So design is convenient to consist of and is conducive to the network structure that precipitates after the come-up and dirt bump after the bubble cutting.

The utility model metal spiral post filter screen, scientific and reasonable for structure, production cost is low, can effectively reach the afterwards effect of precipitation of the rear come-up of bubble cutting and dirt bump, the little equipment of tank body that makes of its volume reduces, thereby reduce the production cost of equipment, adopt simultaneously the leadless soldering tin paste welding between this metal column filter screen various piece, have the advantage of asepsis environment-protecting.Be widely used in the exhaust blowoff valve of the equipment such as urban water supply, heating, central air-conditioning.

Description of drawings

Below in conjunction with accompanying drawing this metal borded pile filter screen is described further:

Fig. 1 is the perspective view of this metal borded pile filter screen;

Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view;

Fig. 3 is the plan structure schematic diagram of this metal borded pile filter screen.

Among the figure: 1 is that core pipe, 2 is that spiral screen pack, 3 is the binding silk.

The specific embodiment

Embodiment one: as Figure 1-3, this metal borded pile filter screen, it is characterized in that, described metal spiral post filter screen is cylindrical structure, comprise core pipe 1, spiral screen pack 2 and binding silk 3, described core pipe 1 is positioned at the center, described spiral screen pack 2 is by the wire that is wound in square spring-like, be entwined at core pipe 1, the part that wire contacts with core pipe 1 is welded on the core pipe 1, described welded wire is the limit of square spring in the part of core pipe 1, the limit of the square spring relative with this limit is the outside that is positioned on the excircle of spiral screen pack 2, the outside of spiral screen pack 2 two adjacent rings overlaps mutually, and described binding silk 3 is wrapped on the spiral screen pack 2, and is welded on the wire that is in contact with it.

Described binding silk 3 twines and is welded on by Pb-free solder the outside lap-joint of spiral screen pack 2 two adjacent rings; Described outside lap-joint length is 3mm; It is the wire of 0.5mm that described spiral screen pack 2 and binding silk 3 adopt diameter.

The above-mentioned specific embodiment only is concrete case of the present utility model; scope of patent protection of the present utility model includes but not limited to the above-mentioned specific embodiment, and any described metal spiral post of the utility model claims filter screen that meets all falls into scope of patent protection of the present utility model.

Claims

1. metal spiral post filter screen, it is characterized in that, described metal spiral post filter screen is cylindrical structure, comprise the core pipe, spiral screen pack and binding silk, described core pipe is positioned at the center, described spiral screen pack is by the wire that is wound in square spring-like, be entwined at the core pipe, the part that wire contacts with the core pipe is welded on the core pipe, described welded wire is the limit of square spring in the part of core pipe, and the limit of the square spring relative with this limit is the outside that is positioned on the excircle of spiral screen pack, and the outside of spiral screen pack two adjacent rings overlaps mutually, described binding silk is wrapped on the spiral screen pack, and is welded on the wire that is in contact with it.

2. metal spiral post filter screen according to claim 1 is characterized in that, described binding silk twines and be welded on by Pb-free solder the outside lap-joint of spiral screen pack two adjacent rings.

3. metal spiral post filter screen according to claim 2 is characterized in that. described outside lap-joint length is 2-4mm.

4. metal spiral post filter screen according to claim 3 is characterized in that, it is the wire of 0.5mm-0.6mm that described spiral screen pack and binding silk adopt diameter.