CN201764001U - Maze metal sealing adjustment ball valve - Google Patents

Maze metal sealing adjustment ball valve Download PDF

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Publication number
CN201764001U
CN201764001U CN 201020531499 CN201020531499U CN201764001U CN 201764001 U CN201764001 U CN 201764001U CN 201020531499 CN201020531499 CN 201020531499 CN 201020531499 U CN201020531499 U CN 201020531499U CN 201764001 U CN201764001 U CN 201764001U
Authority
CN
China
Prior art keywords
valve
labyrinth
maze
ball valve
metallic seal
Prior art date
Application number
CN 201020531499
Other languages
Chinese (zh)
Inventor
宗新
Original Assignee
苏州德兰能源科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州德兰能源科技有限公司 filed Critical 苏州德兰能源科技有限公司
Priority to CN 201020531499 priority Critical patent/CN201764001U/en
Application granted granted Critical
Publication of CN201764001U publication Critical patent/CN201764001U/en

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Abstract

The utility model discloses a maze metal sealing adjustment ball valve, comprising a valve body, two end covers connected with the valve body, and a valve core installed at the valve body and clamped between the two end covers, wherein the valve core is a ball body; and a plurality of maze throttle sheets are arranged at the flow guide through hole of the valve core. The utility model overlaps the maze throttle sheets to form a three-dimensional ball type maze body, the fluid flows into the different amounts of maze entrances according to the opening degree in the switching process of the valve, and the fluid in each maze forms throttling in the maze for stepwise pressure reduction, thereby solving the problem of flow adjustment and avoiding the flushing and cavitation to the inner component of the valve caused by high-speed fluid.

Description

A kind of labyrinth metallic seal regulating ball valve

Technical field

The utility model belongs to fluid control field, particularly relates to a kind of labyrinth metallic seal modulating valve.

Background technique

Generally speaking, the ball valve of metallic seal or nonmetal sealing is because the problem of itself structure, can only be used for the switching manipulation of fluid control, can't carry out the adjusting of flow, otherwise be easy to valve seat and spheroid edge section are formed cavitation or wash away and lose sealing effect rapidly, can not be used for carrying out the accurate adjusting of flow.

As shown in Figure 1, structure sectional view for the common metal seal ball-valve, this metal seal ball valve mainly comprise two end caps 3 and between the spool of clamping, two end caps 3 all are fixed on the valve body 1 by nut, valve body 1 is provided with pad 2 with the contact position of end cap 3, and the spheroid 4 of spool is installed on the valve body, and spheroid 1 top also is provided with valve rod 6, valve rod 6 passes valve body 1, is filled with filler 5 between valve rod 6 and the valve body 1.Along with the rotation of valve rod 6, drive spheroid 4 rotations, thereby reach the effect of valve switch.Because this body structure, can not carry out the adjusting of little aperture at High Pressure Difference situation lower valve, otherwise high-velocity fluid is easy to the bore portions of valve seat or spheroid 4 is washed away, or produces serious cavitation, finally make valve lose seal action.So ordinary ball valve is not suitable as modulating valve and uses, can not carry out the accurate adjusting of high-velocity fluid flow.

The model utility content

(1) technical problem that will solve

The technical problems to be solved in the utility model is how to realize that ball valve can switch, can carry out the adjusting of fluid flow under the High Temperature High Pressure situation again, and can guarantee its Security.

(2) technological scheme

In order to solve the problems of the technologies described above, the utility model provides a kind of labyrinth metallic seal regulating ball valve, it comprises: valve body, two end caps that are connected with described valve body, and be installed on the described valve body and be clamped in spool between described two end caps, described spool is set to spheroid, and the water conservancy diversion through hole of described spool is provided with multilayer mazy type throttling sheet.

In the above-mentioned labyrinth metallic seal regulating ball valve, be arranged at intervals with projection on the described adjacent two-layer mazy type throttling sheet opposing side.

In the above-mentioned labyrinth metallic seal regulating ball valve, the sphere circularity of described spheroid is not more than 0.005mm.

In the above-mentioned labyrinth metallic seal regulating ball valve, the part of described spool except that described water conservancy diversion through hole is solid.

In the above-mentioned labyrinth metallic seal regulating ball valve, described spool upper end is connected with valve rod, and valve rod passes described valve body.

In the above-mentioned labyrinth metallic seal regulating ball valve, be filled with filler between described valve rod and the described valve body.

In the above-mentioned labyrinth metallic seal regulating ball valve, described two end caps are fixed on the described valve body by nut.

In the above-mentioned labyrinth metallic seal regulating ball valve, described valve body and the contacted position of described end cap are provided with pad.

(3) beneficial effect

Technique scheme is by forming a three-dimensional ball-type labyrinth body with the stack of multilayer mazy type throttling sheet, in the valve switch process according to the aperture size, fluid enters the labyrinth inlet of varying number, and the fluid in each labyrinth forms throttling in the labyrinth, step-down step by step, so both solved the Flow-rate adjustment problem, simultaneously also solved the harm of high-velocity fluid the washing away of valve internals, cavitation.

Description of drawings

Fig. 1 is the structure sectional view of common metal seal ball-valve in the prior art;

Fig. 2 is the structure sectional view of the utility model embodiment's labyrinth metallic seal regulating ball valve;

Fig. 3 is the plan view in the labyrinth of spheroid in the utility model embodiment's the labyrinth metallic seal regulating ball valve;

Fig. 4 is the sectional view of crossing the spheroid centre of sphere in the labyrinth of spheroid in the utility model embodiment's the labyrinth metallic seal regulating ball valve;

Fig. 5 is the schematic representation that the utility model embodiment's use labyrinth metallic seal regulating ball valve is in the Flow-rate adjustment state;

Fig. 6 is the schematic representation of the utility model embodiment's use labyrinth metallic seal regulating ball valve closed condition.

Wherein, 1: valve body; 2: pad; 3: end cap; 4: spheroid; 5: filler; 6: valve rod; 7: valve seat; 8: the labyrinth.

Embodiment

Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.

As shown in Figure 2, structure sectional view for the utility model embodiment's labyrinth metallic seal regulating ball valve, this labyrinth metallic seal regulating ball valve mainly comprises valve body 1, two end caps 3, and the spool of clamping between two end caps 3, two end caps 3 all are fixed on the valve body 1 by nut, valve body 1 is provided with pad 2 with the contact position of end cap 3, spool is set to spheroid, spheroid 4 is installed on the valve body 1, and spheroid 4 tops also are provided with valve rod 6, and valve rod 6 passes valve body 1, be filled with filler 5 between valve rod 6 and the valve body 1, when being used for reducing valve rod 6 and rotating and the friction between the valve body 1.In order to realize the adjusting of high-temperature, high pressure fluid flow, spheroid 4 forms a three-dimensional ball-type labyrinth body by the stack of multilayer mazy type throttling sheet, and the water conservancy diversion through hole of spheroid 4 is set to mazy type throttling sheet, and other parts are set to solid.According to the aperture size, fluid enters labyrinth 8 inlets of varying number in the valve switch process, and the fluid in each labyrinth 8 forms throttling, step-down step by step in labyrinth 8.

As shown in Figure 3 and Figure 4, be the plan view and the side view in labyrinth 8.By being provided with after the mazy type throttling sheet, the spheroid passage no longer is a through hole, but mazy type throttling passage, each labyrinth channel is again a single throttling bodies, the selection of throttling capacity can be calculated definite according to the requirement of actual conditions, comprises that the size of labyrinth throttling section and the concrete structure in labyrinth all calculate definite according to fluid flow and pressure size.When needs are closed ball valve, reach the effect of sealing by the complete buffer fluid of the rotation of spheroid 4, this ball valve can accurately be regulated, close under High Temperature High Pressure difference ring border, owing to have labyrinth throttling design, also the cavitation that can effectively avoid fluid to cause is washed away, and has expanded the usefulness of metal seal ball valve greatly.

In the present embodiment, in order to realize the High Accuracy Control of fluid flow, the throttling section is carried out combination forming and is processed into spheroid 4 by special process, the sphere circularity of spheroid 4 is not more than 0.005mm, and roughness reaches minute surface; Spheroid 4 and the processing of valve seat 7 facing-ups, Percent of contact area is more than 90%.

As shown in Figure 5 and Figure 6, be respectively the schematic representation that this ball valve is in Flow-rate adjustment state and closed condition.By rotary valve rod 6, drive spheroid 4 and rotate, and then realize the adjusting of flow size or the switch of ball valve.

As can be seen from the above embodiments, the utility model embodiment is by forming a three-dimensional ball-type labyrinth body with the stack of multilayer mazy type throttling sheet, in the valve switch process according to the aperture size, fluid enters the labyrinth inlet of varying number, and the fluid in each labyrinth forms throttling in the labyrinth, step-down had step by step so both solved the Flow-rate adjustment problem, had simultaneously also solved the harm of high-velocity fluid to the washing away of valve internals, cavitation.So the utility model embodiment's labyrinth metallic seal regulating ball valve can be used for various bores, High Temperature High Pressure difference occasion, improve degree of regulation, improve anti-cavitation, erosion resistibility.

The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection domain of the present utility model.

Claims (8)

1. labyrinth metallic seal regulating ball valve, it is characterized in that, comprise: valve body, two end caps that are connected with described valve body, and be installed on the described valve body and be clamped in spool between described two end caps, described spool is set to spheroid, and the water conservancy diversion through hole of described spool is provided with multilayer mazy type throttling sheet.
2. labyrinth metallic seal regulating ball valve as claimed in claim 1 is characterized in that, is arranged at intervals with projection on the described adjacent two-layer mazy type throttling sheet opposing side.
3. labyrinth metallic seal regulating ball valve as claimed in claim 1 is characterized in that, the sphere circularity of described spheroid is not more than 0.005mm.
4. labyrinth metallic seal regulating ball valve as claimed in claim 1 is characterized in that, the part of described spool except that described water conservancy diversion through hole is solid.
5. labyrinth metallic seal regulating ball valve as claimed in claim 1 is characterized in that, described spool upper end is connected with valve rod, and valve rod passes described valve body.
6. labyrinth metallic seal regulating ball valve as claimed in claim 5 is characterized in that, is filled with filler between described valve rod and the described valve body.
7. labyrinth metallic seal regulating ball valve as claimed in claim 1 is characterized in that, described two end caps are fixed on the described valve body by nut.
8. labyrinth metallic seal regulating ball valve as claimed in claim 1 is characterized in that, described valve body and the contacted position of described end cap are provided with pad.
CN 201020531499 2010-09-16 2010-09-16 Maze metal sealing adjustment ball valve CN201764001U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020531499 CN201764001U (en) 2010-09-16 2010-09-16 Maze metal sealing adjustment ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201020531499 CN201764001U (en) 2010-09-16 2010-09-16 Maze metal sealing adjustment ball valve

Publications (1)

Publication Number Publication Date
CN201764001U true CN201764001U (en) 2011-03-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201020531499 CN201764001U (en) 2010-09-16 2010-09-16 Maze metal sealing adjustment ball valve

Country Status (1)

Country Link
CN (1) CN201764001U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101929558A (en) * 2010-09-16 2010-12-29 苏州德兰能源科技有限公司 Labyrinth metallic seal regulating ball valve
CN102620004A (en) * 2012-04-12 2012-08-01 西派集团有限公司 Pressure-reducing and noise-reducing V-shaped regulating ball valve
CN105179732A (en) * 2015-09-30 2015-12-23 黄建斌 Adjusting ball valve
CN108204464A (en) * 2016-12-19 2018-06-26 大众汽车有限公司 Valve module with guard ring

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101929558A (en) * 2010-09-16 2010-12-29 苏州德兰能源科技有限公司 Labyrinth metallic seal regulating ball valve
CN102620004A (en) * 2012-04-12 2012-08-01 西派集团有限公司 Pressure-reducing and noise-reducing V-shaped regulating ball valve
CN105179732A (en) * 2015-09-30 2015-12-23 黄建斌 Adjusting ball valve
CN108204464A (en) * 2016-12-19 2018-06-26 大众汽车有限公司 Valve module with guard ring

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C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20110316

Effective date of abandoning: 20120118