CN201954081U

CN201954081U - Automatic exhaust valve

Info

Publication number: CN201954081U
Application number: CN2010206863666U
Authority: CN
Inventors: 吕杰平
Original assignee: NINGBO HUAPING METAL PRODUCTS CO Ltd
Current assignee: NINGBO HUAPING METAL PRODUCTS CO Ltd
Priority date: 2010-12-17
Filing date: 2010-12-17
Publication date: 2011-08-31
Anticipated expiration: 2020-12-17

Abstract

The utility model discloses an automatic exhaust valve which comprises a valve seat 7, a valve cover 2, a floating ball 4 and a valve body 1, wherein the valve seat 7 is connected with the valve cover 2 to form an inner cavity 6 in the interior; the floating ball 4 is matched in the inner cavity 6 in a sliding way, and the floating ball 4 is connected with the valve body 1 through a pull rod 3; the valve body 1 is connected in the valve cover 2; the valve seat 7 can be provided with a water inlet pipe and a water outlet pipe; a plurality of layers of metal separation nets 5 are arranged in the inner cavity 6 and are located below the floating ball 4, and the metal separation nets 5 are helical metal separation nets. The automatic exhaust valve has the following advantages: as the plurality of layers of metal separation nets are arranged in the inner cavity, on the one hand, the metal separation nets can adsorb bubbles in the water; on the other hand, the water flowing speed becomes slow, resistance becomes large, which is beneficial to releasing the bubbles adsorbed on the metal separation nets, after the bubbles gather, the bubbles disengage from the metal nets and rise to an exhaust cabin as the volume of the bubbles becomes large, therefore, the discharging effect of the bubbles in water flow is better.

Description

Automatic control pressure vent

Technical field

The utility model relates to a kind of outlet valve, specifically is a kind ofly to be used to heat or the ducted automatic control pressure vent of refrigeration system.

Background technique

Automatic control pressure vent generally is applied to the exhaust of pipelines such as independent heating system, central heating system, heating boiler, central air-conditioner, floor heating and solar heating system.This be since in heating or refrigeration system because the variation of water temperature and pressure, can discharge a large amount of gas in the system, part gas can be dissolved in the water, promptly the form with bubble exists, and can cause reduction, the system of system thermal efficiency problems such as noise, corrosive pipeline, local superheating or not hot, components and parts damage to occur like this.Along with the rising of temperature, the bubble in the water can be separated from water gradually, and accumulates in the pipeline top gradually and form big bubble.Therefore, outlet valve is installed at the pipeline top usually, is opened outlet valve in good time, the bubble in the pipeline is released, thus the normal operation of the system of assurance.

The automatic control pressure vent of prior art generally includes valve seat, valve gap, float and valve body, one end of valve seat is connected with pipeline, the other end is connected with valve gap, cavity of the common formation of valve base cavity and valve gap inner chamber, one end of float is connected with valve body, the other end moves back and forth along axial direction in cavity, and valve body is connected in the valve gap.But, there is following shortcoming in the automatic control pressure vent of this structure: because a lot of special local microbubble gas that produce are continuously easily arranged in heating or refrigeration system, these microbubble gas parts can be along with the mobile place of getting rid of gas in the system that gathers of water, but in addition a part can be dissolved in the water mobile each pipeline that flows to along with water, therefore, exhaust effect is also bad, thereby influences the normal operation of system.

The model utility content

Technical problem to be solved in the utility model is, a kind of good exhaust effect is provided, can guarantees the automatic control pressure vent of the normal operation of system.

For solving the problems of the technologies described above, the automatic control pressure vent that the utility model provides, comprise valve seat, valve gap, ball float and valve body, described valve seat is connected with valve gap and forms an inner chamber in inside, described ball float is slidingly fitted in the inner chamber, and ball float is connected with valve body by pull bar, and described valve body is connected in the valve gap, be provided with the multiple layer metal separating grid in the described inner chamber, this multiple layer metal separating grid is positioned at the ball float below.

After adopting above structure, the utility model compared with prior art, has following advantage: owing in inner chamber, be provided with the multiple layer metal separating grid, on the one hand, bubble in these metal separation nets meeting adsorbed water, thereby these metal separation nets are stopped current and are caused turbulence state on the other hand, make by the water velocity at this place slack-off, it is big that resistance becomes, thereby helping discharging is adsorbed on the online bubble of metal separation, breaks away from greatly in the exhaust cabin that wire netting rises to the ball float place owing to volume becomes after these bubble coalescence, the bubble emission effect in the current is better like this, thus the normal operation of assurance system.

As improvement, described multiple layer metal separating grid is spiral helicine metal separation net.After adopting this structure, utilize the centrifugal settling principle of spiral to make gas and liquor separation better.

As further improvement, described valve body comprises valve rod, sealing block, valve body end cap, gas outlet valve and spring, one end and the pull bar of described valve rod are hinged, the other end end is embedded with sealing block, the end face of the end face of sealing block and valve body end cap one end is rotatably assorted, valve body end cap is connected in the valve gap, and the other end of valve body end cap is connected with gas outlet valve, and described spring housing is connected on valve rod and the valve body end cap.The end face of described sealing block is the cambered surface of indent, and the end face of described valve body end cap is the outer convex globoidal that matches with inner concave arc surface.After adopting this structure, make the structure of exhaust reasonable more, simple and ingenious, also make exhaust effect better.

Description of drawings

Accompanying drawing is the structural representation of the utility model automatic control pressure vent.

Wherein: 1, valve body; 11, valve rod; 12, spring; 13, sealing block; 14, valve body end cap; 15, gas outlet valve; 2, valve gap; 3, pull bar; 4, ball float; 5, metal separation net; 6, inner chamber; 7, valve seat.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.

By the structural representation of the utility model automatic control pressure vent shown in the drawings as can be known, it comprises valve seat 7, valve gap 2, ball float 4 and valve body 1, described valve seat 7 is connected with valve gap 2 and forms an inner chamber 6 in inside, described ball float 4 is slidingly fitted in the inner chamber 6, and ball float 4 is connected with valve body 1 by pull bar 3, described valve body 1 is connected in the valve gap 2, and described valve seat 7 can be fitted with intake pipe and outlet pipe.Be provided with multiple layer metal separating grid 5 in the described inner chamber 6, this multiple layer metal separating grid 5 is positioned at ball float 4 belows.Described multiple layer metal separating grid 4 is spiral helicine metal separation net.

Described valve body 1 comprises valve rod 11, sealing block 13, valve body end cap 14, gas outlet valve 15 and spring 12, one end and the pull bar 3 of described valve rod 11 are hinged, the other end end is embedded with sealing block 13, the end face of the end face of sealing block 13 and valve body end cap 14 1 ends is rotatably assorted, valve body end cap 14 is connected in the valve gap 2, the other end of valve body end cap 14 is connected with gas outlet valve 15, and described spring 12 is socketed on valve rod 11 and the valve body end cap 14.The end face of described sealing block 13 is the cambered surface of indent, and the end face of described valve body end cap 14 is the outer convex globoidal that matches with inner concave arc surface.

The utility model is when work, two go side mouths of valve seat connect intake pipe and the outlet pipe in refrigeration or the heating system respectively, when system in when operation, the water in the pipeline can constantly produce bubble, these bubbles along with current are adsorbed on spiral helicine metal separation online.The spiral metal separating grid has used gas dissolution equilibrium Henry law, after the valve seat temperature rises, and copper spiral metal separating grid good heat transfer, increased the area on attached collection surface, stop the Bohai Sea current and cause turbulence state, make the gas separation that is dissolved in the water, accumulate in inner chamber top.Cumulative along with bubble makes the drawdown under the ball float, and ball float also descends thereupon like this, under the effect of pull bar, with valve rod one end also toward drop-down.Under the effect of spring, the outer convex globoidal of the inner concave arc surface of the sealing block of valve rod end and this end cap of valve one end takes place to rotate mutually, and the valve opening in valve body end cap communicates with inner chamber, and gas outlet valve is given vent to anger then, discharges the bubble of piling up.After bubble drained, the water level in the inner chamber rose, and ball float is also risen thereupon, made sealing block block the passage of valve opening at last, thereby closed gas outlet valve.Exhaust is next time waited in so circulation.

Claims

1. automatic control pressure vent, comprise valve seat (7), valve gap (2), ball float (4) and valve body (1), described valve seat (7) is connected with valve gap (2) and forms an inner chamber (6) in inside, described ball float (4) is slidingly fitted in the inner chamber (6), and ball float (4) is connected with valve body (1) by pull bar (3), described valve body (1) is connected in the valve gap (2), described valve seat (7) can be fitted with intake pipe and outlet pipe, it is characterized in that: be provided with multiple layer metal separating grid (5) in the described inner chamber (6), this multiple layer metal separating grid (5) is positioned at ball float (4) below.

2. automatic control pressure vent according to claim 1 is characterized in that: described multiple layer metal separating grid (5) is spiral helicine metal separation net.

3. automatic control pressure vent according to claim 1, it is characterized in that: described valve body (1) comprises valve rod (11), sealing block (13), valve body end cap (14), gas outlet valve (15) and spring (12), one end of described valve rod (11) and pull bar (3) are hinged, the other end end is embedded with sealing block (13), the end face of the end face of sealing block (13) and valve body end cap (14) one ends is rotatably assorted, valve body end cap (14) is connected in the valve gap (2), the other end of valve body end cap (14) is connected with gas outlet valve (15), and described spring (12) is socketed on valve rod (11) and the valve body end cap (14).

4. automatic control pressure vent according to claim 3 is characterized in that: the end face of described sealing block (13) is the cambered surface of indent, and the end face of described valve body end cap (14) is the outer convex globoidal that matches with inner concave arc surface.