CN205078821U

CN205078821U - Pottery plug valve

Info

Publication number: CN205078821U
Application number: CN201520836989.XU
Authority: CN
Inventors: 步志俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-10-27
Filing date: 2015-10-27
Publication date: 2016-03-09
Anticipated expiration: 2025-10-27

Abstract

The utility model relates to a pottery plug valve, the internal ceramic case that closely cooperates in, that including the metal casing, the end cover is loaded onto soon to the top of casing, and the end cover is loaded soon to the below of casing, is equipped with pottery or other non -metallic material's the well body in the casing, the last end face centre of case sets up the valve rod hole, and the valve rod passes the upper end cover and coordinates with the valve rod hole, the middle part of case sets up circularly or the V -arrangement through -hole, if two parts about being divided into the case based on the through -hole, and thick lower toper under then the case be thick down thin last toper or goes up carefully, the tapering is 0 -20 degree, its characterized in that: butt face and the side handing -over department adverse slope mouth or the circular arc of case. Compared with the prior art, the utility model provides a structural design is reasonable, long service life, pottery plug valve with low costs for the valve does not produce the moment of torsion under any pressure, only produce area frictional force, and pottery plug valve has wear -resisting, a resistant erosion, corrosion -resistant in addition, advantage such as high temperature resistant.

Description

A kind of ceramic plug valve

Technical field

The utility model relates to the controlling component in fluid delivery system, especially a kind of ceramic plug valve.

Background technique

Stopcock is the rotary valve of closure member or plunger shape, by 90-degree rotation, the passway on valve plug is communicated with the passway on valve body or separates, and realizes a kind of valve opened or close.The shape of the valve plug of stopcock can become cylindrical or conical.In cylindrical valve plug, passage is generally orthogonal; And in cone-shaped valve plug, passage in echelon.These shapes make the structure of stopcock become light and handy.Stopcock has the advantages such as high temperature resistant, corrosion-resistant, wear-resistant, erosion resistance, be widely used in various acid-alkali salt gases, liquid, high-temperature steam and the slurry delivery system in the industries such as chemical industry, metallurgy, papermaking, electric power, medicine, environmental protection, common metal stopcock is through using for a long time, producing between spool and middle body weares and teares thus form gap causes seepage, and valve pressure more high pulling torque is larger, can only scrap, the problem that working life is short so metal stopcock exists, user cost is high.

Summary of the invention

The purpose of this utility model is that spool makes the equal and spool tapering area equation of chamber pressure by the plunger in unique pressure release plunger hole and is also the principle that pressure is equal by spool upper-end surface and lower end surface by chamfer design, solves the deficiency that above-mentioned prior art exists.

The utility model is achieved through the following technical solutions:

A kind of ceramic plug valve, comprise metal shell 1, the top spinning upper end cap 8 of housing 1, the below spinning lower end cap 9 of housing 1, the middle body 2 of pottery or other nonmetallic material is provided with in housing 1, closely cooperate in middle body 2 ceramic valve core 3, and the center, upper-end surface of spool 3 arranges valve rod hole, and valve rod 4 coordinates with valve rod hole through upper end cap 8; The middle part of spool 3 arranges circle or V-arrangement through hole 6, if spool is divided into upper and lower two-part based on through hole 6, then spool 3 is upper coarse and lower fine upper conical or up-thin-low-thick inferior pyramidal, and tapering is 0-20 degree, it is characterized in that: the butt end face of spool 3 and unilateral copulation place adverse slope mouth or circular arc.

Further, the center in the butt end face of spool 3 arranges the relief hole 7 communicated with through hole 6.

Further, relief hole 7 be step hole or straight hole, comprise thin segment relief hole 71 near spool taper end face and near the thick section relief hole 72 in spool butt end face, in thick section relief hole 72, fill decompression plunger.

Further, described groove or the size of circular arc and angle make that the end area of spool upper and lower two-part taper is equal, the lateral area of spool upper and lower two-part taper is equal.

Further, described groove or the size of circular arc and angle make the lateral area of spool upper and lower two-part taper equal; The acting in conjunction of the size of groove or circular arc and angle and relief hole 7 makes the end area of spool upper and lower two-part taper and the area equation of the inner top and bottom of valve core through hole 6.

Further, described groove or the size of circular arc and angle make the lateral area of spool upper and lower two-part taper equal; The acting in conjunction of the size of groove or circular arc and angle and thin segment relief hole 71, thick section relief hole 72 makes the area equation of the inner top and bottom of end area valve core through hole 6 of spool upper and lower two-part taper.

Further, the tapered side of two-part up and down of spool arranges groove 12, installing O RunddichtringO in groove 12.

Further, the medial center of lower end cap 9 arranges cavity, loads the clutch shaft bearing 10 of sutaining valve core 3 in cavity, and clutch shaft bearing 10 is adjusted by the first adjustment bolt 13 being screwed in lower end cap center and supported; The inner side surrounding cavity of lower end cap 9 also arranges circular groove 15, the second bearing 11 is loaded in circular groove 15, lower end cap 9 is also evenly offered the shoulder hole 14 of more than 3 through circular grooves 15, spring 16, spring pin 17, the second adjustment bolt 18 of installing adjustment and support the second bearing 11 in shoulder hole 14.

Further, the medial center of lower end cap 9 arranges cavity, loads the support block 21 of sutaining valve core 3, support block 21 surrounding winding spring sheet 23 and guide sleeve 22 in cavity; The shoulder hole of 1 through ladder cavity is also offered at lower end cap 9 center, the lower end of guide sleeve 22 is set in the macropore of shoulder hole, be equipped with T-shaped piece 20 in shoulder hole, the upper end of T-shaped piece 20 contacts with support block 21, and the lower end and the 3rd of T-shaped piece 20 adjusts bolt 19 and contacts.

Compared with prior art, the utility model provides the ceramic plug valve that a kind of reasonable in design, long service life, cost are low, makes valve not produce moment of torsion under any pressure, only produces area frictional force, and ceramic plug valve has wear-resisting, erosion resistance, corrosion-resistant, the advantage such as high temperature resistant.

Ceramic plug valve of the present utility model, gap between adjustable ceramic spool and middle body, thus reach best sealing effect, step by setting up between ceramic flange liner and flange press ring closely cooperates, also solve ceramic flange liner in prior art and hold caducous problem in the case of a high temperature, middle body also can adopt teflon material in addition, makes sealability better, and scratch can not be produced, moment of torsion is little, switch is smooth; Make the longer service life of ceramic rotary cone valve, user cost lower by above structure.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment 1.

Fig. 2 is the structural representation of the utility model embodiment 2.

Fig. 3 is the structural representation of the utility model embodiment 3.

Fig. 4 is the structural representation of the utility model embodiment 4.

Embodiment

Provide embodiment of the present utility model below with reference to accompanying drawing, be used for being described in further detail formation of the present utility model.

Embodiment 1, the ceramic plug valve of the present embodiment, with reference to figure 1, comprise metal shell 1, the top spinning upper end cap 8 of housing 1, the below spinning lower end cap 9 of housing 1, the middle body 2 of pottery or other nonmetallic material is provided with in housing 1, closely cooperate in middle body 2 ceramic valve core 3, and the center, upper-end surface of spool 3 arranges valve rod hole, and valve rod 4 coordinates with valve rod hole through upper end cap 8; The middle part of spool 3 arranges circle or V-arrangement through hole 6, if spool is divided into upper and lower two-part based on through hole 6, then spool 3 is upper coarse and lower fine upper conical or up-thin-low-thick inferior pyramidal, and tapering is 0-20 degree, it is characterized in that: the butt end face of spool 3 and unilateral copulation place adverse slope mouth or circular arc.Described groove or the size of circular arc and angle make that the end area of spool upper and lower two-part taper is equal, the lateral area of spool upper and lower two-part taper is equal.The tapered side of two-part up and down of spool arranges groove 12, installing O RunddichtringO in groove 12.The medial center of lower end cap 9 arranges cavity, loads the clutch shaft bearing 10 of sutaining valve core 3 in cavity, and clutch shaft bearing 10 is adjusted by the first adjustment bolt 13 being screwed in lower end cap center and supported; The inner side surrounding cavity of lower end cap 9 also arranges circular groove 15, the second bearing 11 is loaded in circular groove 15, lower end cap 9 is also evenly offered the shoulder hole 14 of more than 3 through circular grooves 15, spring 16, spring pin 17, the second adjustment bolt 18 of installing adjustment and support the second bearing 11 in shoulder hole 14.

Embodiment 2, the ceramic plug valve of the present embodiment, with reference to figure 2, other are identical with embodiment 1, unlike: the center in the butt end face of spool 3 arranges the relief hole 7 communicated with through hole 6, relief hole 7 is straight hole, makes the end area of spool upper and lower two-part taper and the area equation of the inner top and bottom of valve core through hole 6 with described groove or the size of circular arc and the acting in conjunction of angle.

Embodiment 3, the ceramic plug valve of the present embodiment, with reference to figure 3, other are identical with embodiment 2, unlike: relief hole 7 is step hole, comprises the thin segment relief hole 71 near spool taper end face and the thick section relief hole 72 near spool butt end face, fills decompression plunger in thick section relief hole 72.Thin segment relief hole 71, thick section relief hole 72 and described groove or the size of circular arc and the acting in conjunction of angle make the area equation of the inner top and bottom of end area valve core through hole 6 of spool upper and lower two-part taper.

Embodiment 4, the ceramic plug valve of the present embodiment, and with reference to figure 4, other are identical with embodiment 3, unlike: the medial center of lower end cap 9 arranges cavity, loads the support block 21 of sutaining valve core 3, support block 21 surrounding winding spring sheet 23 and guide sleeve 22 in cavity; The shoulder hole of 1 through ladder cavity is also offered at lower end cap 9 center, the lower end of guide sleeve 22 is set in the macropore of shoulder hole, be equipped with T-shaped piece 20 in shoulder hole, the upper end of T-shaped piece 20 contacts with support block 21, and the lower end and the 3rd of T-shaped piece 20 adjusts bolt 19 and contacts.

The unspecified content of the utility model is prior art, and those skilled in the art can obtain inspiration from the present embodiment and prior art, carries out distortion and obtains other embodiment.Therefore, protection domain of the present utility model should be determined according to the protection domain of claim.

Claims

1. a ceramic plug valve, comprise metal shell (1), top spinning upper end cap (8) of housing (1), below spinning lower end cap (9) of housing (1), the middle body (2) of pottery or other nonmetallic material is provided with in housing (1), closely cooperate in middle body (2) ceramic valve core (3), and the center, upper-end surface of spool (3) arranges valve rod hole, and valve rod (4) coordinates with valve rod hole through upper end cap (8); The middle part of spool (3) arranges circle or V-arrangement through hole (6), if spool is divided into upper and lower two-part based on through hole (6), then spool (3) is upper coarse and lower fine upper conical or up-thin-low-thick inferior pyramidal, tapering is 0-20 degree, it is characterized in that: the butt end face of spool (3) and unilateral copulation place adverse slope mouth or circular arc.

2. a kind of ceramic plug valve according to claim 1, is characterized in that: the center in the butt end face of spool (3) arranges the relief hole (7) communicated with through hole (6).

3. a kind of ceramic plug valve according to claim 2, it is characterized in that: relief hole (7) for step hole or straight hole, comprise the thin segment relief hole (71) near spool taper end face and the thick section relief hole (72) near spool butt end face, in thick section relief hole (72), fill decompression plunger.

4. a kind of ceramic plug valve according to claim 1, is characterized in that: described groove or the size of circular arc and angle make that the end area of spool upper and lower two-part taper is equal, the lateral area of spool upper and lower two-part taper is equal.

5. a kind of ceramic plug valve according to claim 2, is characterized in that: described groove or the size of circular arc and angle make the lateral area of spool upper and lower two-part taper equal; The acting in conjunction of the size of groove or circular arc and angle and relief hole (7) makes the end area of spool upper and lower two-part taper and the area equation of valve core through hole (6) inner top and bottom.

6. a kind of ceramic plug valve according to claim 3, is characterized in that: described groove or the size of circular arc and angle make the lateral area of spool upper and lower two-part taper equal; The acting in conjunction of the size of groove or circular arc and angle and thin segment relief hole (71), thick section relief hole (72) makes the area equation of end area valve core through hole (6) the inner top and bottom of spool upper and lower two-part taper.

7. according to the arbitrary described a kind of ceramic plug valve of claim 1-6, it is characterized in that: the tapered side of two-part up and down of spool arranges groove (12), installing O RunddichtringO in groove (12).

8. according to the arbitrary described a kind of ceramic plug valve of claim 1-6, it is characterized in that: the medial center of lower end cap (9) arranges cavity, load the clutch shaft bearing (10) of sutaining valve core (3) in cavity, clutch shaft bearing (10) is by being screwed in first adjustment bolt (13) adjustment at lower end cap center and supporting; The inner side surrounding cavity of lower end cap (9) also arranges circular groove (15), the second bearing (11) is loaded in circular groove (15), lower end cap (9) is also evenly offered the shoulder hole (14) of more than 3 through circular grooves (15), the spring (16) of installing adjustment and support the second bearing (11) in shoulder hole (14), spring pin (17), the second adjustment bolt (18).

9. according to the arbitrary described a kind of ceramic plug valve of claim 1-6, it is characterized in that: the medial center of lower end cap (9) arranges cavity, the support block (21) of sutaining valve core (3) is loaded, support block (21) winding spring sheet around (23) and guide sleeve (22) in cavity; The shoulder hole of 1 through ladder cavity is also offered at lower end cap (9) center, the lower end of guide sleeve (22) is set in the macropore of shoulder hole, be equipped with in shoulder hole T-shaped piece (20), the upper end of T-shaped piece (20) contacts with support block (21), and the lower end and the 3rd of T-shaped piece (20) adjusts bolt (19) and contacts.