CN207935463U - The hard seal gate valve of air-conditioning HVAC system wedge-type - Google Patents
The hard seal gate valve of air-conditioning HVAC system wedge-type Download PDFInfo
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- CN207935463U CN207935463U CN201820182157.4U CN201820182157U CN207935463U CN 207935463 U CN207935463 U CN 207935463U CN 201820182157 U CN201820182157 U CN 201820182157U CN 207935463 U CN207935463 U CN 207935463U
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- valve
- flashboard
- hvac system
- valve rod
- air
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Abstract
The utility model discloses a kind of hard seal gate valves of air-conditioning HVAC system wedge-type, it is a kind of valve mechanism being exclusively used in air-conditioning HVAC system, its structure includes valve body, flashboard, valve rod, valve deck and handwheel etc., the valve body sealing surface for making sealing cooperation in valve body with the sealing surface at flashboard both ends is mainly set as to the brass sealing surface of plasma surfacing technology formation, this brass sealing surface is between soft seal face and hard sealing surface, can have longer service life and preferable sealing effect, slotting connection structure is matched in the flashboard top of the flashboard nut for being threadedly coupled valve rod lower end and opening/shutting valve by detachable again to be combined into one, then valve rod need to only drive flashboard nut can synchronous drive flashboard lifting moving, to alleviate the keying operational torque on handwheel；In addition, rotation sealing installation of the valve rod in valve deck is realized by gland and divided ring, structure design is simpler, and production cost is also lower, and the weight of valve can be greatly lowered.
Description
Technical field
The utility model is related to the hard seal gate valves of wedge-type, in particular to air-conditioning HVAC system wedge in a kind of pipeline valve
The hard seal gate valve of formula.
Background technology
The hard seal gate valve of wedge-type is one kind in many pipeline valves, is mainly used for section of liquid medium in control pipeline
Stream, therefore be used widely in fields such as oil, natural gas, chemical industry；And the hard seal gate valve of air-conditioning HVAC system wedge-type is main
Play the role of shutting off to the medium of pipeline in air-conditioning HVAC system, is used, be primarily present according to current structure
Following defect：One, the valve body sealing surface for making sealing cooperation in valve body with the sealing surface at flashboard both ends is all close using soft material
Envelope or hard alloy sealing, and soft material sealing uses the case where being susceptible to sealing leak for a long time, hard alloy sealing to hold
The sealing surface wear of flashboard is easily caused, and then influences sealing effect；Two, the nut being connect with valve rod lower thread is all directly solid
It is scheduled on flashboard, or directly the internal thread of valve rod lower end will be coordinated to be arranged in flashboard, be easy to cause handwheel band ovable valve stem in this way
There are larger keying operational torque when rotating and then flashboard being driven to rise, make troubles to using；Three, valve rod is in valve deck
Rotation sealing installation be all is realized by filler and gland, it is not only complicated, production cost height, also improve valve
Weight.
Invention content
There is provided the technical problem to be solved by the utility model is to overcome the deficiencies of existing technologies it is a kind of it is simple in structure,
Air-conditioning HVAC system light-weight, that production cost is low, sealing effect is reliable, keying operational torque is lighter seals lock firmly with wedge-type
Valve.
The technical issues of the utility model, is achieved through the following technical solutions：
A kind of hard seal gate valve of air-conditioning HVAC system wedge-type, including the flashboard in valve body, valve body, body top sealing peace
The valve deck of dress and rotation are sealingly mounted at the valve rod in valve deck, which connects flashboard, and valve deck is stretched out in valve rod upper end
Handwheel is connected, the valve body sealing surface that the interior sealing surface with flashboard both ends of the valve body makees sealing cooperation is set as plasma surfacing skill
The brass sealing surface that art is formed；It is equipped with mounting groove at the top of the flashboard and detachable matches the flashboard spiral shell being inserted in the mounting groove
Mother, the valve rod lower end are connect with the flashboard nut thread.
Mounting groove at the top of the flashboard is T word slots, and the flashboard nut is matched by rectangular-shaped connecting pin level
It is inserted in the T words slot and forms detachable connection.
The valve deck top surface is equipped with counterbore, and the divided ring being fitted in counterbore, valve deck top are equipped in the middle part of the valve rod
Face is equipped with is enclosed in the gland in counterbore by the divided ring, and Tetrafluoro spacer is equipped between the gland and divided ring；The valve
Bar passes through gland to connect handwheel, and two pass O-ring is equipped between valve rod and gland.
O-ring is equipped between the gland and valve deck.
The valve deck is mounted on the middle flange face of body top, is equipped between the valve deck and the middle flange face of valve body close
Seal the middle flange gasket and soket head cap screw of connection.
Compared with prior art, the utility model mainly seals the sealing surface with flashboard both ends in the valve body of gate valve
The valve body sealing surface of cooperation is set as the brass sealing surface of plasma surfacing technology formation, and this brass sealing surface is between soft seal
Between face and hard sealing surface, can have longer service life and preferable sealing effect, then valve rod lower end will be threadedly coupled
Flashboard nut and opening/shutting valve flashboard top by detachable match insert connection structure be combined into one, then valve rod only needs to drive
Flashboard nut can synchronous drive flashboard lifting moving, to alleviate the keying operational torque on handwheel；In addition, valve rod is in valve
Rotation sealing installation in lid is realized by gland and divided ring, and structure design is simpler, and production cost is also lower, and
And the weight of valve can be greatly lowered.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of the utility model.
Fig. 2 is the stereogram of Fig. 1.
Fig. 3 is the structural schematic diagram of flashboard nut.
Fig. 4 is the structural schematic diagram of flashboard.
Specific implementation mode
It will again elaborate to the utility model embodiment by above-mentioned attached drawing below.
As shown in Fig. 1 ~ Fig. 4,1. valve bodies, 2. flashboards, 21. mounting grooves, 3. flashboard nuts, 31. connecting pins, 4. valve rods, 5.
Soket head cap screw, 6. valve decks, 7. divided rings, 8. Tetrafluoro spacers, 9.O types circle, 10. glands, 11. two pass O-rings, 12. handwheels,
13. flange gasket, 15. valve body sealing surfaces in hexagon-headed bolt, 14..
The hard seal gate valve of air-conditioning HVAC system wedge-type is as shown in Figure 1 and Figure 2 a kind of to be exclusively used in air-conditioning HVAC system
Valve mechanism, it is mainly made of valve body, flashboard, valve rod, valve deck and handwheel etc..
It is equipped with the valve chamber of horizontal perforation in the valve body 1, the flashboard 2 is mounted on valve chamber center, and in valve body 1,
It is in contact with the sealing surface at flashboard both ends in valve chamber and the valve body sealing surface 15 for making sealing cooperation is set as plasma surfacing technology
The brass sealing surface of formation, the brass sealing surface have longer service life and preferable sealing effect.
1 top of valve body is equipped with middle flange face, and the valve deck 6 is mounted in this on flange face, and valve deck 6 and valve
It is equipped with the middle flange gasket 14 being tightly connected and soket head cap screw 5 between the middle flange face of body 1, is pushed up in valve body 1 with forming valve deck 6
The sealing in face is installed.
The valve rod 4 is vertically mounted in valve deck 6, and mounting structure is：6 top surface of valve deck is equipped with counterbore, 4 middle part of valve rod
Equipped with the divided ring 7 being fitted in counterbore, which is fixed on valve rod 4, and 6 top surface of valve deck, which is additionally provided with, is fixed on valve deck
On gland 10, then divided ring 7 can be enclosed in counterbore by gland, therefore valve rod 4 can be in valve deck 6 by divided ring 7
Interior formation rotation installation；Meanwhile Tetrafluoro spacer 8 is equipped between gland 10 and divided ring 7, valve rod 4 passes through gland 10 to connect handwheel
12, be equipped with two pass O-ring 11 between valve rod 4 and gland 10, these components be all as valve rod 4 in the valve deck 6 and gland 10
The dynamic seal of interior rotation；And O-ring 9 is equipped between gland 10 and valve deck 6, to form sealing of the gland 10 in 6 top surface of valve deck
Installation.
Since rotation sealing installation of the valve rod 4 in valve deck 6 is to be realized by gland 10 and divided ring 7, therefore entirety is tied
Structure design is simpler, and production cost is also lower, and the weight of valve can also be greatly lowered.
4 upper end of valve rod stretches out gland 10 and is fixed as one by hexagon-headed bolt 13 and handwheel 12, therefore handwheel
12 rotation energy band ovable valve stems 4 rotate synchronously；4 lower end of valve rod is stretched into valve chamber and is threadedly coupled with the formation of flashboard 3, and concrete structure is：Lock
3 top surface of plate, which is equipped with, uses the mounting groove 31 for being illustrated in figure 4 T word slots, and 4 lower end of valve rod is equipped with the flashboard nut 2 being threadedly coupled,
The flashboard nut have it is horizontal with the rectangular-shaped connecting pin 21 being inserted in T word slots as shown in Figure 3, therefore flashboard nut 2 and flashboard 3 it
Between formed detachable with insert connection structure, make 12 driving stem of handwheel 4 that need to drive 2 liters of flashboard nut by this structure
Drop movement, you can 3 lifting moving of synchronous drive flashboard, to alleviate the keying operational torque on handwheel 12.
The above is only specific embodiment of the utility model, it should be appreciated by those skilled in the art that any and reality
The equivalent structure design of example is applied, should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of hard seal gate valve of air-conditioning HVAC system wedge-type, including valve body（1）, flashboard in valve body（3）, valve body（1）Top
The valve deck of portion's sealing installation（6）It is sealingly mounted at valve deck with rotation（6）Interior valve rod（4）, valve rod lower thread connection flashboard
（3）, valve deck is stretched out in valve rod upper end（6）Connect handwheel（12）, it is characterised in that the valve body（1）Interior and flashboard（3）Both ends
Sealing surface makees the valve body sealing surface of sealing cooperation（15）It is set as the brass sealing surface of plasma surfacing technology formation；The flashboard
（3）Top is equipped with mounting groove（31）Match with detachable and is inserted in the mounting groove（31）Interior flashboard nut（2）, the valve rod
（4）Lower end and the flashboard nut（2）It is threadedly coupled.
2. the hard seal gate valve of air-conditioning HVAC system wedge-type according to claim 1, it is characterised in that the flashboard（3）
The mounting groove at top（31）For T word slots, the flashboard nut（2）Pass through rectangular-shaped connecting pin（21）Level, which is matched, is inserted in the T
In word slot and form detachable connection.
3. the hard seal gate valve of air-conditioning HVAC system wedge-type according to claim 1, it is characterised in that the valve deck（6）
Top surface is equipped with counterbore, the valve rod（4）Middle part is equipped with the divided ring being fitted in counterbore（7）, valve deck（6）Top surface is equipped with institute
State divided ring（7）The gland being enclosed in counterbore（10）, the gland and divided ring（7）Between be equipped with Tetrafluoro spacer（8）；Described
Valve rod（4）Across gland（10）Connect handwheel（12）, in valve rod（4）With gland（10）Between be equipped with two pass O-ring（11）.
4. the hard seal gate valve of air-conditioning HVAC system wedge-type according to claim 3, it is characterised in that the gland
（10）With valve deck（6）Between be equipped with O-ring（9）.
5. the hard seal gate valve of air-conditioning HVAC system wedge-type according to claim 1, it is characterised in that the valve deck（6）
Mounted on valve body（1）On the middle flange face at top, the valve deck（6）With valve body（1）Middle flange face between be equipped be tightly connected
Middle flange gasket（14）And soket head cap screw（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820182157.4U CN207935463U (en) | 2018-01-31 | 2018-01-31 | The hard seal gate valve of air-conditioning HVAC system wedge-type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820182157.4U CN207935463U (en) | 2018-01-31 | 2018-01-31 | The hard seal gate valve of air-conditioning HVAC system wedge-type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207935463U true CN207935463U (en) | 2018-10-02 |
Family
ID=63651026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820182157.4U Active CN207935463U (en) | 2018-01-31 | 2018-01-31 | The hard seal gate valve of air-conditioning HVAC system wedge-type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207935463U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185832A (en) * | 2019-05-20 | 2019-08-30 | 江苏中海华核环保有限公司 | A kind of dedicated totally-enclosed isolating valve of nuclear power |
| CN112483672A (en) * | 2020-11-16 | 2021-03-12 | 杭州春江阀门有限公司 | High-performance gate valve |
-
2018
- 2018-01-31 CN CN201820182157.4U patent/CN207935463U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185832A (en) * | 2019-05-20 | 2019-08-30 | 江苏中海华核环保有限公司 | A kind of dedicated totally-enclosed isolating valve of nuclear power |
| CN112483672A (en) * | 2020-11-16 | 2021-03-12 | 杭州春江阀门有限公司 | High-performance gate valve |
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