CN209637981U

CN209637981U - A kind of unidirectional valve assembly of pulp conveying diaphragm pump

Info

Publication number: CN209637981U
Application number: CN201920230894.1U
Authority: CN
Inventors: 陈钢; 林永许; 陈玮
Original assignee: Wenzhou Lianbang Petrifaction Machinery Co Ltd
Current assignee: Wenzhou Lianbang Petrifaction Machinery Co Ltd
Priority date: 2019-02-23
Filing date: 2019-02-23
Publication date: 2019-11-15
Anticipated expiration: 2029-02-23

Abstract

The utility model discloses a kind of unidirectional valve assemblies of pulp conveying diaphragm pump, it is related to check valve technical field, including valve body, valve seat, guide sleeve, cone valve guider, cone valve sealing cover, seal gasket, cone valve axis and spring, one end sliding plug of cone valve axis is in guide sleeve, spring is socketed on outside guide sleeve and both ends are contradicted with cone valve axis and valve body respectively, cone valve guider, cone valve sealing cover is set in valve seat and is sequentially connected on cone valve axis by bolt, seal gasket is between cone valve axis and cone valve sealing cover, and it is sheathed on outside cone valve axis, between cone valve guider and cone valve sealing cover, limit bolt is provided between cone valve sealing cover and cone valve axis, the inner port of valve seat upper end is provided with taper accent, the outer end face of cone valve sealing cover is set as curved end, the curved end of cone valve sealing cover and the cone of taper accent Face sealing cooperation, in cone valve guider outer surface, weldering is equipped with stellite layer；It makes it have and improves its effect with long service life.

Description

A kind of unidirectional valve assembly of pulp conveying diaphragm pump

Technical field

The utility model relates to check valve technical fields, more specifically, it relates to a kind of list of pulp conveying diaphragm pump To valve assembly.

Background technique

Check valve is the critical component of the double flexible pipe membrane pumps of high pressure, plays unidirectional overcurrent；Due to pumped (conveying) mediums such as coal slurries Abrasion, corrosivity and check valve ceaselessly carries out opening and closing movement when diaphragm pump high-voltage operation, to its spool and Valve seat brings continuous brute force attack and high speed is washed away, so that check valve becomes easily worn part, so diaphragm pump check valve Performance and the service life directly affect diaphragm pump performance and continuously run rate, to entire work system production capacity and equipment running wastage It influences huge.

Check valve in diaphragm pump includes spool and valve seat, spool and the frequent cyclic movement of valve cup in diaphragm pump, Mounted in the suction inlet and outlet of pump, it to be used for transfer ore pulp；It due to taking regular exercise, and is transfer ore pulp, so abrasion Than very fast, general import parts at most also just with a wheat harvesting period, belong to easily-consumed products, service life is short.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of lists of pulp conveying diaphragm pump To valve assembly, has and improve its effect with long service life.

To achieve the above object, the utility model provides following technical solution:

A kind of unidirectional valve assembly of pulp conveying diaphragm pump, including be set to the intracorporal valve seat of valve, guide sleeve, cone valve and lead To device, cone valve sealing cover, seal gasket, cone valve axis and spring, the guide sleeve is fixed on the valve body, the cone valve axis One end sliding plug in guide sleeve, the spring be socketed on that the guide sleeve is outer and both ends respectively with cone valve axis and valve body It contradicts, the cone valve guider, cone valve sealing cover are set in valve seat and the bolt by being set on cone valve axis is sequentially connected In on the cone valve axis, the seal gasket is between cone valve axis and cone valve sealing cover and is sheathed on outside cone valve axis, the cone Between valve guide and cone valve sealing cover, limit bolt, the valve seat upper end are provided between cone valve sealing cover and cone valve axis Inner port be provided with taper accent, the outer end face of the cone valve sealing cover is set as curved end, the cone valve sealing cover The conical surface seal of curved end and the taper accent cooperates, and in cone valve guider outer surface, weldering is equipped with stellite Layer.

So set, being then exhausted from after pushing diaphragm to suck ore pulp by piston hydraulic pressure, during which the spring on cone valve axis is risen auxiliary Help effect；Meanwhile by bolt by the connective stability between cone valve guider, cone valve sealing cover, cone valve axis, and valve seat and cone Between valve sealing cover by former sealing means be tapered surface seal, be now changed to conical surface spherical linear sealing, overall leakproofness can be improved It can and delay the rate of wear；By between two limit bolts to mutually setting between cone valve guider, cone valve sealing cover, cone valve axis It sets, it is strong to improve valve seat, cone valve guider, cone valve axis, cone valve sealing cover, the connective stability between seal gasket and structure Degree, reaches the service life for effectively improving check valve, reduces the effect of cost.

Further setting: card slot is offered on the cone valve guider, is set between the bolt and cone valve guider It is equipped with retaining pad, one end of the retaining pad is connected in the card slot.

So set, one end by retaining pad is connected in card slot, and make bolt wear retaining pad by cone valve guider, Cone valve sealing cover is set on valve seat, improves cone valve guider, cone valve sealing cover is set to the stability on valve seat.

Further setting: positioning ring groove is offered on the cone valve sealing cover, the cone valve guider is far from bolt One end is connected in the positioning ring groove, and the limit bolt is plugged in the positioning ring groove.

So set, improving cone valve sealing cover and cone valve by the way that one end of cone valve guider to be connected in positioning ring groove The stability connected between guider, while limit bolt is arranged in positioning ring groove, have the function that rational deployment, improves cone Connective stability between valve sealing cover and cone valve guider.

Further setting: the first sealing ring is offered on the end face that the cone valve guider is connect with cone valve sealing cover Slot is provided with the first sealing ring in first closure gasket groove.

So set, improving valve seat by being provided with the first sealing ring in the first closure gasket groove and being on valve body reciprocal The sealing performance of movement.

Further setting: the inner cavity of the valve body is set as cone-shaped cavity, and the valve seat is set to the cone-shaped cavity of valve body Cone match interior and with valve body.

It is mutually slided so set, being on the cone-shaped cavity of valve seat convenient for valve body, improves the fortune between valve body and valve seat Dynamic performance.

Further setting: the second closure gasket groove is offered on the outer circumference surface of the valve seat, in second sealing ring The second sealing ring is provided in slot.

So set, raising valve seat, which is on valve body, back and forth to be transported by the way that the second sealing ring is arranged in the second closure gasket groove Dynamic sealing performance.

Further setting: it is offered on the contact surface that the cone valve axis, cone valve sealing cover are contacted with seal gasket respectively Multiple locking grooves.

So set, preventing seal gasket from generating play when cone valve axis impacts valve body by the way that multiple locking grooves are arranged, mentioning Stability when high non-return valve operational.

Further setting: offering installation annular groove on the end face that the cone valve axis is contacted with spring, and the one of the spring End is installed in the installation annular groove.

So set, one end of spring is by the installation annular groove that is installed on cone valve axis, improving spring by deformation When positioning and guiding effect, improve spring deformation when stability.

Further setting: in the outer surface of the cone valve axis, spray is equipped with tungsten carbide wear-resisting coating.

So set, the hardness of the material up to HRC70 or so, is one of material most wear-resistant at present, has and improve cone The effect of valve shaft structural strength improves the service life of its check valve.

Further setting: the seal gasket is UR polyurethane sealing ring.

So set, the pull resistance of the material, wearability are 3-5 times of General Purpose Rubber.

By using above-mentioned technical proposal, the utility model is compared compared with the prior art, is had the advantage that

1, by, to the mutual setting between cone valve guider, cone valve sealing cover, cone valve axis, being improved between two limit bolts Valve seat, cone valve guider, cone valve axis, cone valve sealing cover, the connective stability between seal gasket and structural strength, reaching has Effect improves the service life of check valve, reduces the effect of cost；

2, it is connected in card slot by one end of retaining pad, and it is close by cone valve guider, cone valve so that bolt is worn retaining pad Capping is set on valve seat, improves cone valve guider, cone valve sealing cover is set to the stability on valve seat；

3, by the mutual setting between the first sealing ring, the second sealing ring, locking groove, retaining pad and limit bolt, Improve valve seat, valve body, cone valve guider, cone valve axis, cone valve sealing cover, the connective stability between seal gasket, sealing performance And structural strength；

4, it by the way that multiple locking grooves are arranged, prevents seal gasket from generating play when cone valve axis impacts valve body, improves unidirectional Stability when valve works.

Detailed description of the invention

Fig. 1 is the structure cut-away view of the unidirectional valve assembly of pulp conveying diaphragm pump；

Fig. 2 is the enlarged drawing in Fig. 1 at A；

Fig. 3 is the semi-cutaway of cone valve axis in the unidirectional valve assembly of pulp conveying diaphragm pump；

Fig. 4 is the structural schematic diagram of cone valve sealing cover in the unidirectional valve assembly of pulp conveying diaphragm pump；

Fig. 5 is the structure sectional view of valve seat in the unidirectional valve assembly of pulp conveying diaphragm pump.

In figure: 1, valve body；11, cone-shaped cavity；2, valve seat；21, taper accent；22, the second closure gasket groove；23, second is close Seal；3, guide sleeve；4, cone valve guider；41, card slot；42, retaining pad；43, the first closure gasket groove；44, the first sealing ring； 45, stellite layer；5, cone valve sealing cover；51, curved end；52, positioning ring groove；6, seal gasket；7, cone valve axis；71, Annular groove is installed；72, locking groove；8, spring；9, bolt；10, limit bolt.

Specific embodiment

It is described further referring to unidirectional valve assembly of the attached drawing to pulp conveying diaphragm pump.

A kind of unidirectional valve assembly of pulp conveying diaphragm pump, as shown in Figure 1, include be set in valve body 1 valve seat 2, Guide sleeve 3, cone valve guider 4, cone valve sealing cover 5, seal gasket 6, cone valve axis 7 and spring 8.

As depicted in figs. 1 and 2, wherein the lower end of valve body 1 is import, and two sides are outlet, and the inner cavity of valve body 1 is set as Cone-shaped cavity 11, valve seat 2 is set in the cone-shaped cavity 11 of valve body 1 and the cone match with valve body 1, cone valve guider 4, cone valve Sealing cover 5 is set in valve seat 2, and the bolt 9 being arranged on cone valve axis 7 by threads turn is sequentially connected on cone valve axis 7； To improve the stability that bolt 9 connects, card slot 41 is offered on cone valve guider 4, between bolt 9 and cone valve guider 4 It is provided with retaining pad 42, and one end of retaining pad 42 is connected in card slot 41.

As shown in Figure 1, guide sleeve 3 is integrally attached on valve body 1, one end sliding plug of cone valve axis 7 in guide sleeve 3, Spring 8 is socketed on outside guide sleeve 3 and both ends are contradicted with cone valve axis 7 and valve body 1 respectively；Valve seat 2 and cone are in improve spring 8 Stability between valve shaft 7 offers installation annular groove 71, bullet as shown in connection with fig. 3 on the end face that cone valve axis 7 is contacted with spring 8 One end of spring 8 is installed in installation annular groove 71.

As shown in Figure 1, seal gasket 6 is UR polyurethane sealing ring, and seal gasket 6 is located at cone valve axis 7 and cone valve seals Between lid 5 and it is sheathed on outside cone valve axis 7；In conjunction with shown in Fig. 4 and Fig. 5, the inner port of 2 upper end of valve seat is provided with taper accent 21, The outer end face of cone valve sealing cover 5 is set as curved end 51, the curved end 51 of cone valve sealing cover 5 and the conical surface of taper accent 21 Sealing cooperation；Meanwhile 6 partial region of seal gasket is installed on the conical surface in taper accent 21.

In conjunction with shown in Fig. 1,3,4, meanwhile, seal gasket 6 generates play, In when cone valve axis 7 impacts valve body 1 in order to prevent Multiple locking grooves 72 are offered on the contact surface that cone valve axis 7, cone valve sealing cover 5 are contacted with seal gasket 6 respectively.

In conjunction with shown in Fig. 1 and Fig. 4, to improve the stability connected between cone valve guider 4 and cone valve sealing cover 5, boring Positioning ring groove 52 is offered on valve sealing cover 5, cone valve guider 4 is connected in positioning ring groove 52 far from one end of bolt 9；To mention High cone valve axis 7, cone valve guider 4, stability interconnected between cone valve sealing cover 5 are sealed in cone valve guider 4 and cone valve It is provided with limit bolt 10 between lid 5, between cone valve sealing cover 5 and cone valve axis 7, wherein a limit bolt 10 is plugged in positioning In annular groove 52.

Referring to figs. 1 and 2, to improve the sealing performance between cone valve axis 7, cone valve sealing cover 5, in cone valve guider The first closure gasket groove 43 is offered on 4 end faces connecting with cone valve sealing cover 5, it is close to be provided with first in the first closure gasket groove 43 Seal 44.

Referring to figure 1 and figure 5, it is in the sealing performance moved back and forth on valve body 1 to improve valve seat 2, in the outer of valve seat 2 The second closure gasket groove 22 is offered on periphery, and the second sealing ring 23 is provided in the second closure gasket groove 22；Meanwhile to improve The service life of cone valve guider 4, in 4 outer surface of cone valve guider, weldering is equipped with stellite layer 45, and in the outer of cone valve axis 7 Surface spray is equipped with tungsten carbide wear-resisting coating.

Working principle: it is then exhausted from after pushing diaphragm to suck ore pulp by piston hydraulic pressure, during which the spring 8 on cone valve axis 7 rises Booster action, meanwhile, former sealing means are tapered surface sealing, and being now changed to conical surface spherical linear sealing can be improved overall sealing performance And delay the rate of wear；Pass through the first sealing ring 44, the second sealing ring 23, locking groove 72, retaining pad 42 and limit bolt 10 Between mutual setting, improve valve seat 2, cone valve guider 4, cone valve axis 7, cone valve sealing cover 5, the connection between seal gasket 6 Stability and structural strength reach the service life for effectively improving check valve, reduce the effect of cost.

The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims

1. a kind of unidirectional valve assembly of pulp conveying diaphragm pump, it is characterised in that: including the valve seat being set in valve body (1) (2), guide sleeve (3), cone valve guider (4), cone valve sealing cover (5), seal gasket (6), cone valve axis (7) and spring (8), institute It states guide sleeve (3) to be fixed on the valve body (1), one end sliding plug of the cone valve axis (7) is described in guide sleeve (3) Spring (8) is socketed on the guide sleeve (3) outside and both ends are contradicted with cone valve axis (7) and valve body (1) respectively, the cone valve guiding Device (4), cone valve sealing cover (5) are set in valve seat (2) and the bolt (9) by being set on cone valve axis (7) is sequentially connected to On the cone valve axis (7), the seal gasket (6) is located between cone valve axis (7) and cone valve sealing cover (5) and is sheathed on cone valve Axis (7) outside, is all provided between the cone valve guider (4) and cone valve sealing cover (5), between cone valve sealing cover (5) and cone valve axis (7) It is equipped with limit bolt (10), the inner port of valve seat (2) upper end is provided with taper accent (21), the cone valve sealing cover (5) Outer end face be set as curved end (51), the curved end (51) of the cone valve sealing cover (5) and the taper accent (21) Conical surface seal cooperation, cone valve guider (4) outer surface weldering be equipped with stellite layer (45).

2. a kind of unidirectional valve assembly of pulp conveying diaphragm pump according to claim 1, it is characterised in that: in the cone Card slot (41) are offered on valve guide (4), and retaining pad (42) are provided between the bolt (9) and cone valve guider (4), One end of the retaining pad (42) is connected in the card slot (41).

3. a kind of unidirectional valve assembly of pulp conveying diaphragm pump according to claim 1, it is characterised in that: in the cone It is offered on valve sealing cover (5) positioning ring groove (52), the cone valve guider (4) is connected in described far from the one end of bolt (9) In positioning ring groove (52), and the limit bolt (10) is plugged in the positioning ring groove (52).

4. a kind of unidirectional valve assembly of pulp conveying diaphragm pump according to claim 3, it is characterised in that: in the cone The first closure gasket groove (43) are offered on the end face that valve guide (4) is connect with cone valve sealing cover (5), in first sealing ring The first sealing ring (44) are provided in slot (43).

5. a kind of unidirectional valve assembly of pulp conveying diaphragm pump according to claim 1, it is characterised in that: the valve body (1) inner cavity is set as cone-shaped cavity (11), and the valve seat (2) is set in the cone-shaped cavity (11) of valve body (1) and and valve body (1) cone match.

6. a kind of unidirectional valve assembly of pulp conveying diaphragm pump according to claim 5, it is characterised in that: in the valve The second closure gasket groove (22) are offered on the outer circumference surface of seat (2), it is close to be provided with second in second closure gasket groove (22) Seal (23).

7. a kind of unidirectional valve assembly of pulp conveying diaphragm pump according to claim 1, it is characterised in that: in the cone Multiple locking grooves (72) are offered on the contact surface that valve shaft (7), cone valve sealing cover (5) are contacted with seal gasket (6) respectively.

8. a kind of unidirectional valve assembly of pulp conveying diaphragm pump according to claim 1, it is characterised in that: in the cone Installation annular groove (71) is offered on the end face that valve shaft (7) is contacted with spring (8), one end of the spring (8) is installed on the peace It fills in annular groove (71).

9. a kind of unidirectional valve assembly of pulp conveying diaphragm pump according to claim 1, it is characterised in that: in the cone The outer surface spray of valve shaft (7) is equipped with tungsten carbide wear-resisting coating.

10. a kind of unidirectional valve assembly of pulp conveying diaphragm pump according to claim 1, it is characterised in that: described close Potting pad (6) is UR polyurethane sealing ring.