CN214248310U

CN214248310U - Ceramic A valve

Info

Publication number: CN214248310U
Application number: CN202120119294.5U
Authority: CN
Inventors: 冯一桀; 金浩军
Original assignee: Yantai Kingway Science & Technology Co ltd
Current assignee: Yantai Kingway Science & Technology Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-09-21
Anticipated expiration: 2031-01-15

Abstract

The utility model discloses pottery A valve includes: the valve comprises a front valve body, a front valve body lining, a ceramic middle island sleeve, a middle island, an upper shaft, a ceramic valve core, a rear valve ceramic lining, a rear valve body, a lower shaft, a valve rod and a reciprocating shaft, wherein the front valve body and the rear valve body are fixed together through a connecting piece, the middle island sleeve and the ceramic middle island sleeve are arranged in the front valve body lining, the middle island sleeve and the ceramic middle island sleeve are fixed on the front valve body lining through the lower shaft, central line holes which are vertical to the front valve body and the rear valve body are formed in the front valve body lining, the ceramic middle island sleeve and the middle island, the upper shaft penetrates through the central line holes and is fixed on the front valve body, the lower end of the valve rod sequentially penetrates through the upper shaft and the ceramic middle island sleeve to enter a valve cavity of the middle island, the reciprocating shaft which is coaxial with the central lines of the front valve body and the rear valve body is arranged in the valve cavity, one end of the reciprocating shaft is arranged on one end of the middle island, the other end of the reciprocating shaft extends out and is fixed with the ceramic valve core, the valve rod is meshed with the reciprocating shaft, the valve rod moves up and down, the reciprocating shaft and the ceramic valve core are driven to move left and right along the central lines of the front valve body and the rear valve body.

Description

Ceramic A valve

Technical Field

The utility model relates to a valve, especially a pottery A valve.

Background

At present, in the working condition of a strong erosion regulating valve, most of the eccentric rotary valves are in a condition that when the valve is in a small opening degree, high-speed medium flows obliquely towards a valve body member, the erosion is strong, the problems of complete failure of the valve, such as leakage at the penetrating level of the valve body, erosion breakage of a valve rod and the like, are caused, the valve needs to be repaired or scrapped offline, and even emergency shutdown or production accidents can be caused.

Disclosure of Invention

The invention aims to solve the problems of the existing strong erosion working condition, and provides a ceramic A valve which has the service life which is many times longer than that of other types of valves and cannot cause the problems of erosion penetration and the like.

In order to achieve the purpose of the invention, the utility model adopts the following technical solutions:

the utility model discloses a pottery A valve, it includes: the valve comprises a front valve body, a front valve body lining, a ceramic middle island sleeve, a middle island, an upper shaft, a ceramic valve core, a rear valve ceramic lining, a rear valve body, a lower shaft, a valve rod and a reciprocating shaft, wherein the front valve body and the rear valve body are fixed together through a connecting piece, the rear valve ceramic lining is arranged in the rear valve body, the front valve body lining is arranged in the front valve body, the middle island and the ceramic middle island sleeve are arranged in the front valve body lining, the ceramic middle island sleeve is sleeved on the middle island, the middle island and the ceramic middle island sleeve are fixed on the front valve body lining and the front valve body through the lower shaft, a hole perpendicular to the central line of the front valve body and the rear valve body is formed in the front valve body, the upper shaft penetrates through the hole and is fixed on the front valve body, and the lower end of the valve rod sequentially penetrates through the upper shaft and the ceramic middle island sleeve to enter a valve cavity of the middle island, wherein: the valve cavity is internally provided with a reciprocating shaft which is coaxial with the central lines of the front valve body and the rear valve body, one end of the reciprocating shaft is arranged at one end of the middle island, the other end of the reciprocating shaft extends out of the valve cavity and is fixed with the ceramic valve core, the valve rod is meshed with the reciprocating shaft, the valve rod moves up and down to drive the reciprocating shaft and the ceramic valve core to move left and right along the central lines of the front valve body and the rear valve body, and the ceramic valve core is matched with the ceramic lining of the rear valve to open or close a fluid passage formed between the ceramic lining of the front valve body and the ceramic lining of the rear valve.

The utility model discloses a pottery A valve, wherein: one end of the middle island and one end of the ceramic middle island sleeve are sealed, the outer wall of one end of the ceramic middle island sleeve is conical, a sealing plate is fixed at the other end of the middle island and the other end of the ceramic middle island sleeve, and the sealing plate seals the engaged valve rod and the reciprocating shaft in the valve cavity, so that fluid flowing into the ceramic lining of the rear valve from the lining of the front valve body is separated from the valve rod and the reciprocating shaft.

The utility model discloses a pottery A valve, wherein: the ceramic valve core penetrates through the reciprocating shaft, one end of the ceramic valve core is clamped on the reciprocating shaft, and the other end of the ceramic valve core is fixed on the reciprocating shaft through a fixing block and a fixing screw.

The utility model discloses a pottery A valve, wherein: the engaging part of the reciprocating shaft and the valve rod is a semi-cylinder, the mutually contacting end surfaces of the two semi-cylinders are provided with mutually engaging helical teeth, and the valve rod moves up and down to drive the reciprocating shaft and the ceramic valve core to move left and right along the central lines of the front valve body and the rear valve body.

The utility model discloses a pottery A valve, wherein: the reciprocating shaft is provided with a tooth groove, one end of the valve rod extends into the tooth groove and penetrates through the middle island to be arranged on the ceramic middle island sleeve, a gear is arranged on the circumference of the valve rod extending into the tooth groove, a rack is arranged on one side of the tooth groove contacted with the gear, the gear is meshed with the rack, and the reciprocating shaft and the ceramic valve core are driven to move left and right along the central lines of the front valve body and the rear valve body by the rotary motion of the valve rod.

The utility model discloses a pottery A valve, wherein: it still includes: the ceramic sleeve of upper shaft and lower shaft, the ceramic sleeve of upper shaft is fitted outside the upper shaft, it one end is pushed against the ceramic middle island and put on the upper shaft in another end; the lower shaft ceramic sleeve is sleeved outside the lower shaft, one end of the lower shaft ceramic sleeve is propped against the ceramic middle island sleeve, and the other end of the lower shaft ceramic sleeve is propped against the lower shaft.

The utility model discloses a pottery A valve, wherein: it still includes: the packing device comprises packing rings and a packing pressure plate, wherein a plurality of packing rings are arranged on the circumference of a valve rod between an upper shaft and the valve rod, the packing pressure plate penetrates through the upper end of the valve rod and is fixed on the upper shaft through a bolt, and the lower end of the packing pressure plate is pressed on the packing rings.

The utility model discloses a pottery A valve, wherein: and the surfaces of the front valve body lining, the ceramic middle island sleeve, the ceramic valve core and the rear valve ceramic lining are sprayed with ceramic coatings or hard alloy coatings.

The utility model discloses a pottery A valve, wherein: the front valve body lining, the ceramic middle island sleeve, the ceramic valve core and the rear valve ceramic lining are made of integral ceramic materials or hard alloy materials.

The ceramic A valve of the utility model has simple principle, the ceramic middle island sleeve and the ceramic lining of the valve body of the ceramic A valve are coaxially arranged to form a continuous A-shaped middle cavity flow passage formed by ceramic materials, thereby reducing the flow resistance and increasing the circulation capacity; turbulence, vortex and bubble phenomena are not generated in the flow channel, high-speed medium flow is not obliquely emitted to the valve body or other parts, the vortex quantity in the whole flow field is very low, and meanwhile, the conversion of energy such as vibration, interference flow, erosion and the like in the flow channel is minimum, so that the energy loss is reduced; the unique flow passage structure is particularly suitable for regulating and controlling high-pressure fluid, and can reduce the permanent damage of flash evaporation and cavitation to the valve. Compared with other valves under the working condition of strong erosion, the service life of the ceramic A valve is prolonged by multiple times, and the high risk problem that the valve body is eroded and penetrated is avoided.

Drawings

Fig. 1 is a schematic cross-sectional view of a ceramic a valve according to the present invention, showing a first transmission mode between a valve rod and a reciprocating shaft, wherein the valve rod and the reciprocating shaft are helical teeth, and a hatching is not shown on a ceramic spool for clarity;

FIG. 2 is a top down partial schematic view of the engaged valve stem and reciprocating shaft of FIG. 1;

FIG. 3 is a schematic cross-sectional view of another embodiment of the ceramic A valve of the present invention showing a second mode of transmission between the valve stem and the reciprocating shaft, wherein the valve stem is a gear and the reciprocating shaft has a rack, and the ceramic spool does not have hatching for clarity;

fig. 4 is a top down schematic view of the engaged valve stem and reciprocating shaft of fig. 3.

In fig. 1 to 4, reference numeral 1 is a front valve body; reference numeral 2 is a front valve body lining; the reference number 3 is a ceramic middle island sleeve; reference numeral 4 is a middle island; the number 5 is an upper shaft ceramic sleeve; reference numeral 6 is an upper shaft; reference numeral 7 is a ceramic valve core; reference numeral 8 is a rear valve body; numeral 9 is a rear valve ceramic liner; reference numeral 10 is a lower shaft; reference numeral 11 is a packing press plate; reference numeral 12 is a valve stem; reference numeral 13 is a fixing screw; reference numeral 14 denotes a fixing block; reference numeral 15 is a lower shaft ceramic sleeve; reference numeral 16 is a reciprocating shaft; reference numeral 17 is a packing ring; reference numeral 18 is a valve chamber; reference numeral 19 is a gear; reference numeral 20 is a gullet; reference numeral 21 denotes a sealing plate.

Detailed Description

First embodiment

As shown in fig. 1 and 2, the ceramic a valve of the present invention includes: the valve comprises a front valve body 1, a front valve body lining 2, a ceramic middle island sleeve 3, a middle island 4, an upper shaft 6, a ceramic valve core 7, a rear valve ceramic lining 9, a rear valve body 8, a lower shaft 10, a valve rod 12, an upper shaft ceramic sleeve 5, a lower shaft ceramic sleeve 15 and a reciprocating shaft 16. The front valve body 1 and the rear valve body 8 are fixed together through a connecting piece, a rear valve ceramic lining 9 is arranged in the rear valve body 8, a front valve body lining 2 is arranged in the front valve body 1, a middle island 4 and a ceramic middle island sleeve 3 are arranged along the central line of the front valve body lining 2, the ceramic middle island sleeve 3 is sleeved on the middle island 4, the middle island 4 and one end of the ceramic middle island sleeve 3 are sealed, the outer wall of one end of the ceramic middle island sleeve 3 is conical, a sealing plate 21 is fixed at the other ends of the middle island 4 and the ceramic middle island sleeve 3, and the engaged valve rod 12 and the reciprocating shaft 16 are sealed in the valve cavity 18 by the sealing plate 21, so that fluid flowing into the rear valve ceramic lining 9 from the front valve body lining 2 is separated from the valve rod 12 and the reciprocating shaft 16. The middle island 4 and the ceramic middle island sleeve 3 are fixed on the front valve body lining 2 and the front valve body 1 through a lower shaft 10, the upper shaft ceramic sleeve 5 is sleeved outside the upper shaft 6, one end of the upper shaft ceramic sleeve is propped against the ceramic middle island sleeve 3, and the other end of the upper shaft ceramic sleeve is propped against the upper shaft 6; the lower shaft ceramic sleeve 15 is sleeved outside the lower shaft 10, one end of the lower shaft ceramic sleeve 15 is propped against the ceramic middle island sleeve 3, and the other end of the lower shaft ceramic sleeve is propped against the lower shaft 10. Holes perpendicular to the central lines of the front valve body 1 and the rear valve body 8 are formed in the front valve body 1, the front valve body lining 2, the ceramic middle island sleeve 3 and the middle island 4, the upper shaft 6 penetrates through the holes and is fixed on the front valve body 1, the lower end of the valve rod 12 sequentially penetrates through the upper shaft 6 and the ceramic middle island sleeve 3 and enters the valve cavity 18 of the middle island 4, a reciprocating shaft 16 coaxial with the central lines of the front valve body 1 and the rear valve body 8 is arranged in the valve cavity 18, one end of the reciprocating shaft 16 is arranged at one end of the middle island 4, the other end of the reciprocating shaft extends out of the valve cavity 18 and is fixed with the ceramic valve core 7, the ceramic valve core 7 penetrates through the reciprocating shaft 16, one end of the ceramic valve core 7 is clamped on the reciprocating shaft 16, and the other end of the ceramic valve core 7 is fixed on the reciprocating shaft 16 through the fixing block 14 and the fixing screw 13. The valve rod 12 is engaged with the reciprocating shaft 16, and as shown in fig. 2, the engaging portion of the reciprocating shaft 16 and the valve rod 12 is a semi-cylinder, and the mutually contacting end surfaces of the two semi-cylinders have mutually engaging helical teeth. The valve rod 12 moves up and down to drive the reciprocating shaft 16 and the ceramic valve core 7 to move left and right along the central lines of the front valve body 1 and the rear valve body 8. The ceramic spool 7 cooperates with the rear valve ceramic liner 9 to open or close a fluid passage formed between the front valve body liner 2 and the rear valve ceramic liner 9.

The surfaces of the front valve body lining 2, the ceramic middle island sleeve 3, the ceramic valve core 7 and the rear valve ceramic lining 9 are sprayed with ceramic coatings or hard alloy coatings, or are made of integral ceramic materials or hard alloy materials.

The valve also has necessary components such as a seal ring, but the present invention is a sub-component, and therefore, the present embodiment is not explained.

Second embodiment

As shown in fig. 3 and 4, the second embodiment is substantially the same as the first embodiment, and the same parts will not be described again, except for: the reciprocating shaft 16 is provided with a toothed groove 20, one end of the valve rod 12 extends into the toothed groove 20 and penetrates through the middle island 4 to be arranged on the ceramic middle island sleeve 3, a gear 19 is arranged on the circumference of the valve rod 12 extending into the toothed groove 20, a rack is arranged on one side of the toothed groove 20 contacted with the gear 19, the gear 19 is meshed with the rack, and the reciprocating shaft 16 and the ceramic valve core 7 are driven to move left and right along the central lines of the front valve body 1 and the rear valve body 8 by the rotation motion of the valve rod 12.

Reciprocating shaft 16 drives ceramic case 7 antedisplacement to ceramic case 7 and back valve ceramic inside lining 9 when coincide and forms sealedly, cuts fluid medium's runner, and the antedisplacement will make ceramic case 7 and back valve ceramic inside lining 9 throw off, opens the distance between valve runner and the adjustable control ceramic case 7 and the back valve ceramic inside lining 9, and then control fluid throttle area, reaches the utility model discloses ceramic A valve control fluid flow reaches with cut fluidic purpose.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

Claims

1. A ceramic a-valve comprising: the valve comprises a front valve body (1), a front valve body lining (2), a ceramic middle island sleeve (3), a middle island (4), an upper shaft (6), a ceramic valve core (7), a rear valve ceramic lining (9), a rear valve body (8), a lower shaft (10), a valve rod (12) and a reciprocating shaft (16), wherein the front valve body (1) and the rear valve body (8) are fixed together through a connecting piece, the rear valve ceramic lining (9) is arranged in the rear valve body (8), the front valve body lining (2) is arranged in the front valve body (1), a middle island (4) and a ceramic middle island sleeve (3) are arranged in the front valve body lining (2), the ceramic middle island sleeve (3) is sleeved on the middle island (4), the middle island (4) and the ceramic middle island sleeve (3) are fixed on the front valve body lining (2) and the front valve body (1) through the lower shaft (10), holes vertical to the central line of the front valve body (1) and the rear valve body (8) are formed in the front valve body (1), the front valve body lining (2), the ceramic middle island sleeve, the upper shaft (6) penetrates through the hole and is fixed on the front valve body (1), the lower end of the valve rod (12) sequentially penetrates through the upper shaft (6) and the ceramic middle island sleeve (3) and enters a valve cavity (18) of the middle island (4), and the valve is characterized in that: a reciprocating shaft (16) which is coaxial with the central lines of the front valve body (1) and the rear valve body (8) is arranged in the valve cavity (18), one end of the reciprocating shaft (16) is arranged at one end of the middle island (4), the other end of the reciprocating shaft extends out of the valve cavity (18) and is fixed with the ceramic valve core (7), the valve rod (12) is meshed with the reciprocating shaft (16), the valve rod (12) moves up and down to drive the reciprocating shaft (16) and the ceramic valve core (7) to move left and right along the central lines of the front valve body (1) and the rear valve body (8), and the ceramic valve core (7) is matched with the rear valve ceramic lining (9) to open or close a fluid passage formed between the front valve body lining (2) and the rear valve ceramic lining (9).

2. The ceramic a-valve of claim 1, wherein: the middle island (4) and one end of the ceramic middle island sleeve (3) are sealed, the outer wall of one end of the ceramic middle island sleeve (3) is conical, a sealing plate (21) is fixed to the other ends of the middle island (4) and the ceramic middle island sleeve (3), and the valve rod (12) and the reciprocating shaft (16) which are meshed with each other are sealed in the valve cavity (18) by the sealing plate (21), so that fluid flowing into the ceramic lining (9) of the rear valve from the front valve body lining (2) is separated from the valve rod (12) and the reciprocating shaft (16).

3. The ceramic a-valve of claim 2, wherein: the ceramic valve core (7) penetrates through the reciprocating shaft (16), one end of the ceramic valve core (7) is clamped on the reciprocating shaft (16), and the other end of the ceramic valve core (7) is fixed on the reciprocating shaft (16) through a fixing block (14) and a fixing screw (13).

4. The ceramic a-valve of claim 3, wherein: the meshing part of the reciprocating shaft (16) and the valve rod (12) is a semi-cylinder, the mutually-meshed oblique teeth are arranged on the mutually-contacted end surfaces of the two semi-cylinders, and the valve rod (12) moves up and down to drive the reciprocating shaft (16) and the ceramic valve core (7) to move left and right along the central lines of the front valve body (1) and the rear valve body (8).

5. The ceramic a-valve of claim 3, wherein: the reciprocating shaft (16) is provided with a tooth groove (20), one end of the valve rod (12) extends into the tooth groove (20) and penetrates through the middle island (4) to be arranged on the ceramic middle island sleeve (3), a gear (19) is arranged on the circumference of the valve rod (12) extending into the tooth groove (20), a rack is arranged on one side of the tooth groove (20) contacted with the gear (19), the gear (19) is meshed with the rack, and the rotary motion of the valve rod (12) drives the reciprocating shaft (16) and the ceramic valve core (7) to move left and right along the central lines of the front valve body (1) and the rear valve body (8).

6. A ceramic A-valve as claimed in claim 4 or 5 wherein: it still includes: the ceramic upper shaft sleeve (5) and the ceramic lower shaft sleeve (15), the ceramic upper shaft sleeve (5) is sleeved outside the upper shaft (6), one end of the ceramic upper shaft sleeve is propped against the ceramic middle island sleeve (3), and the other end of the ceramic upper shaft sleeve is propped against the upper shaft (6); the lower shaft ceramic sleeve (15) is sleeved outside the lower shaft (10), one end of the lower shaft ceramic sleeve (15) is propped against the ceramic middle island sleeve (3), and the other end of the lower shaft ceramic sleeve is propped against the lower shaft (10).

7. The ceramic a-valve of claim 6, wherein: it still includes: the packing device comprises packing rings (17) and a packing press plate (11), wherein a plurality of packing rings (17) are arranged on the circumference of a valve rod (12) between an upper shaft (6) and the valve rod (12), the packing press plate (11) penetrates through the upper end of the valve rod (12) and is fixed on the upper shaft (6) through a bolt, and the lower end of the packing press plate (11) is pressed on the packing rings (17).

8. The ceramic a-valve of claim 7, wherein: the surfaces of the front valve body lining (2), the ceramic middle island sleeve (3), the ceramic valve core (7) and the rear valve ceramic lining (9) are sprayed with ceramic coatings or hard alloy coatings.

9. The ceramic a-valve of claim 7, wherein: the front valve body lining (2), the ceramic middle island sleeve (3), the ceramic valve core (7) and the rear valve ceramic lining (9) are made of integral ceramic materials or hard alloy materials.