CN205298628U - Eccentric ball valve of top mounted formula - Google Patents
Eccentric ball valve of top mounted formula Download PDFInfo
- Publication number
- CN205298628U CN205298628U CN201521121839.7U CN201521121839U CN205298628U CN 205298628 U CN205298628 U CN 205298628U CN 201521121839 U CN201521121839 U CN 201521121839U CN 205298628 U CN205298628 U CN 205298628U
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- valve
- valve body
- ball valve
- hemisphere
- roof
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Abstract
The utility model discloses an eccentric ball valve of top mounted formula installs in LNG conveying line for the control piper break -make. It includes valve body, case part, valve rod and vacuum insulation layer, be provided with the case part in the valve body, have on the case part rather than assembling the integrative valve rod outside the valve body that stretches out, the valve rod can wholly take out from the valve body with the case part, outmost at valve body, valve rod is wrapped up in to heat insulation layer. The problem of traditional ball valve to finish back operating repair difficulty and sealing member in the installation short -lived is solved, the cost of operating repair ball valve has been reduced.
Description
Technical field
This utility model relates to a kind of valve control device, specifically, is a kind of roof-mounted eccentric ball valve.
Background technology
At present, traditional ball valve employs technology maturation side-mounted structure earlier to save cost, but is not suitable as Subzero valve and uses, and it is difficult to safeguard after mounting changes inner seal member; And employ the ball valve pushing up assembling structure design on the market after carrying out the process of low temperature Insulation, also first to destroy external insulation structure and just can open ball valve as changed ball valve inner seal member and be replaced, maintenance cost is increased by producing extra insulation material consume, if vacuum insulation structure situation will be unable to maintenance, it is necessary to destroy vacuum structure and just can see the ball valve of the inside; What the current ball valves of the overwhelming majority on the market adopted is all widely used ball seal structure, operationally it is always maintained at close contact state between spheroid and sealing ring, during keying, continual generation is rubbed, the impact of the temporary impact operating mode and impurity etc. during open and close, makes be substantially reduced the service life of sealing ring in addition.
Utility model content
The purpose of the present utility model is in that: for the shortcoming of conventional ball valve in prior art, invent a kind of roof-mounted vacuum heat-preserving eccentric ball valve, by adopting top assembling structure, centering type spheroid, major axis to connect the structural designs such as valve rod, solve the conventional ball valve problem that Maintenance and Repair are difficult after installing and seal life is short, reduce the cost of Maintenance and Repair ball valve.
The technical solution adopted in the utility model is as follows:
Roof-mounted vacuum heat-preserving eccentric ball valve of the present utility model, including valve body, valve hole part, stem member and vacuum heat-insulating layer, it is provided with valve hole part in described valve body, described valve hole part is provided with the stem member stretching out outside valve body, described stem member is into a single integrated structure with valve hole part and entirety can pick and place from valve body, and described vacuum heat-insulating layer is wrapped in the surface of valve body, stem member.
Due to said structure, when ball valve is carried out Maintenance and Repair, first actuator is pulled down, then the connecting bolt of trocar sheath epimere sealed end is backed out, end cap is removed, just can take out overall to the hemisphere bias flap being fitted together with valve rod group, bearing, bearing, eccentric bearing block etc., it is to avoid conventional ball valve problem of complex operation, difficulty when Maintenance and Repair.
Roof-mounted vacuum heat-preserving eccentric ball valve of the present utility model, described valve hole part includes hemisphere bias flap, clutch shaft bearing, sealing ring, described hemisphere bias flap and valve hole part are assembled integrally structure, described valve body inner bottom part is provided with clutch shaft bearing, described clutch shaft bearing connects the bottom of hemisphere bias flap, being provided with sealing ring in seal groove in described valve body, described hemisphere bias flap can be formed with sealing ring laminating and seal.
Due to said structure, the eccentric design of flap, hemisphere during closedown, eccentric flap opposite direction half-twist under actuator drives, seals sphere gradually near sealing ring, finally contacts, and under the effect of eccentric moment, sealing has been fitted tightly with sealing ring, close valve; When ball valve standard-sized sheet, due to the effect of eccentric moment, hemisphere bias flap separates with sealing ring, makes both not contact, between do not produce friction, thus sealing surface not easy damaged.
Roof-mounted vacuum heat-preserving eccentric ball valve of the present utility model, the top of described valve body is provided with eccentric bearing block, is provided with the second bearing, described stem member and the second bearing and connects in eccentric bearing block.
Due to said structure, this utility model is by being connected valve rod with hemisphere bias flap directly through the second bearing, clutch shaft bearing and the second bearing is utilized to realize the rotary motion of hemisphere bias flap, make that this utility model ball-valve structure is simple, parts are less, thus easy and simple to handle when installing this ball valve.
Roof-mounted vacuum heat-preserving eccentric ball valve of the present utility model, described stem member includes valve rod, jacket and trocar sheath, wherein the lower end of valve rod connects hemisphere bias flap through the second bearing, the upper end of valve rod has been bolted actuator, jacket it is arranged with outside valve rod, being arranged with trocar sheath outside described jacket, described trocar sheath is wrapped with vacuum heat-insulating layer.
Due to said structure, this utility model ball valve is made to change without impact on safeguarding after carrying out being cladded with insulation construction, from without producing to destroy to heat-insulation layer, it is to avoid to increase maintenance cost because producing extra insulation material consume.
Roof-mounted vacuum heat-preserving eccentric ball valve of the present utility model, the outer wall of described jacket is evenly equipped with some heat insulation annular grooves.
Due to said structure, roof-mounted eccentric ball valve of the present utility model, in insulating process, makes jacket have certain contraction distortion when expanding with heat and contract with cold change because being influenced by temperature meeting more or less, adopts this structural design to avoid the problems referred to above.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1. simple in construction, easy for installation, the valve hole part of the roof-mounted eccentric ball valve of the present invention and valve rod group dress up a mass motion structure, valve rod adopts major axis structural design, said structure makes the taking-up from valve body putting into valve body and entirety that when mounted can be overall, reaches when assembling easy to operate, simple and direct.
2. Maintenance and Repair are easy and simple to handle, and what adopt due to the roof-mounted eccentric ball valve of the present invention is roof-mounted, when ball valve is carried out Maintenance and Repair, can directly dismantle from ball valve upper end, end cap is removed, it is possible to individual parts entirety is taken out, has reached the effect that Maintenance and Repair are easy and simple to handle.
3. extending sealing ring service life, what the spheroid of the roof-mounted eccentric ball valve of the present invention adopted is hemisphere bias flap, when ball valve standard-sized sheet, due to the effect of eccentric moment, hemisphere bias flap separates with sealing ring, makes both not contact, between do not produce friction, thus sealing surface not easy damaged.
4. reducing use cost, the present invention is by adopting said structure so that ball valve of the present invention reduces the use cost of Maintenance and Repair cost and sealing device in reality uses.
Accompanying drawing explanation
Fig. 1 is the structural representation of roof-mounted eccentric ball valve.
Fig. 2 is that roof-mounted eccentric ball valve opens status architecture schematic diagram entirely.
Fig. 3 is sealing ring positional structure schematic diagram in roof-mounted eccentric ball valve.
Labelling in figure: 1-valve body, 2-flap, 3-sealing ring, 4-valve rod, 5-jacket, 6-trocar sheath, 7-clutch shaft bearing, 8-the second bearing, 9-eccentric bearing block, 10-actuator, 11-vacuum heat-insulating layer.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
Embodiment 1
As shown in Figure 1, roof-mounted eccentric ball valve of the present utility model, including valve body 1, valve hole part, stem member and vacuum heat-insulating layer 11, it is characterized in that: in described valve body 1, be provided with valve hole part, described valve hole part is provided with the stem member stretching out outside valve body, described stem member is into a single integrated structure with valve hole part and entirety can pick and place from valve body 1, and described vacuum heat-insulating layer 11 is wrapped in the surface of valve body 1, stem member. Described valve hole part includes hemisphere bias flap 2, clutch shaft bearing 7, sealing ring 3, described hemisphere bias flap 2 is assembled integrally structure with valve hole part, described valve body 1 inner bottom part is provided with clutch shaft bearing 7, described clutch shaft bearing 7 connects the bottom of hemisphere bias flap 2, being provided with sealing ring 3 in seal groove in described valve body 1, described hemisphere bias flap 2 can be formed with sealing ring 3 laminating and seal. This embodiment makes ball valve very simple and easy to operate when carrying out safeguarding renewal part.
Specifically safeguard that renewal part flow process is as follows:
Embodiment 2
As it is shown in figure 1, this embodiment is similar to embodiment 1, it is different in that: the top of described valve body 1 is provided with eccentric bearing block 9, is provided with the second bearing 8, described stem member and the second bearing 8 in eccentric bearing block 9 and connects.
Embodiment 3
As shown in Figure 1, this embodiment is similar to embodiment 2, it is different in that: described stem member includes valve rod 4, jacket 5 and trocar sheath 6, wherein the lower end of valve rod 4 connects hemisphere bias flap 2 through the second bearing 8, the upper end of valve rod 4 has been bolted actuator 10, being arranged with jacket 5 outside valve rod 4, be arranged with trocar sheath 6 outside described jacket 5, described trocar sheath 6 is wrapped with vacuum heat-insulating layer 11. It is as follows that the ball valve of this embodiment closes/open process:
Hemisphere during closedown, hemisphere bias flap 2 is opposite direction half-twist under actuator 10 drives, and seals sphere gradually near sealing ring 3, finally contacts, and fitted tightly sealing under the effect of eccentric moment with sealing ring 3, closes valve; When ball valve standard-sized sheet, due to the effect of eccentric moment, hemisphere bias flap 2 and sealing ring 3 separate, and make both not contact, between do not produce friction, thus sealing surface not easy damaged.
Embodiment 4
As it is shown in figure 1, this embodiment is similar to embodiment 3, it is different in that: the outer wall of described jacket 5 is evenly equipped with some heat insulation annular grooves.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (5)
1. a roof-mounted eccentric ball valve, including valve body (1), valve hole part, stem member and vacuum heat-insulating layer (11), it is characterized in that: described valve body is provided with valve hole part in (1), described valve hole part is provided with the stem member stretching out outside valve body, described stem member is into a single integrated structure with valve hole part and entirety can pick and place from valve body (1), and described vacuum heat-insulating layer (11) is wrapped in the surface of valve body (1), stem member.
2. roof-mounted eccentric ball valve according to claim 1, it is characterized in that: described valve hole part includes hemisphere bias flap (2), clutch shaft bearing (7), sealing ring (3), described hemisphere bias flap (2) and valve hole part are assembled integrally structure, described valve body (1) inner bottom part is provided with clutch shaft bearing (7), described clutch shaft bearing (7) connects the bottom of hemisphere bias flap (2), being provided with sealing ring (3) in seal groove in described valve body (1), described hemisphere bias flap (2) can be formed with sealing ring (3) laminating and seal.
3. roof-mounted eccentric ball valve according to claim 1 and 2, it is characterised in that: the top of described valve body (1) is provided with eccentric bearing block (9), is provided with the second bearing (8), described stem member and the second bearing (8) and connects in eccentric bearing block (9).
4. roof-mounted eccentric ball valve according to claim 3, it is characterized in that: described stem member includes valve rod (4), jacket (5) and trocar sheath (6), wherein the lower end of valve rod (4) connects hemisphere bias flap (2) through the second bearing (8), the upper end of valve rod (4) has been bolted actuator (10), jacket (5) it is arranged with outside valve rod (4), being arranged with trocar sheath (6) outside described jacket (5), described trocar sheath (6) is wrapped with vacuum heat-insulating layer (11).
5. roof-mounted eccentric ball valve according to claim 4, it is characterised in that: the outer wall of described jacket (5) is evenly equipped with some heat insulation annular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521121839.7U CN205298628U (en) | 2015-12-31 | 2015-12-31 | Eccentric ball valve of top mounted formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521121839.7U CN205298628U (en) | 2015-12-31 | 2015-12-31 | Eccentric ball valve of top mounted formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298628U true CN205298628U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521121839.7U Active CN205298628U (en) | 2015-12-31 | 2015-12-31 | Eccentric ball valve of top mounted formula |
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| Country | Link |
|---|---|
| CN (1) | CN205298628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090285A (en) * | 2016-08-12 | 2016-11-09 | 四川省简阳市川力机械制造有限责任公司 | A kind of control stop valve for cryogenic equipment |
-
2015
- 2015-12-31 CN CN201521121839.7U patent/CN205298628U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090285A (en) * | 2016-08-12 | 2016-11-09 | 四川省简阳市川力机械制造有限责任公司 | A kind of control stop valve for cryogenic equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |