CN203926813U - Direct-connected block device - Google Patents
Direct-connected block device Download PDFInfo
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- CN203926813U CN203926813U CN201420319223.XU CN201420319223U CN203926813U CN 203926813 U CN203926813 U CN 203926813U CN 201420319223 U CN201420319223 U CN 201420319223U CN 203926813 U CN203926813 U CN 203926813U
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- flow
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Abstract
The utility model relates to a kind of direct-connected block device, and its structure comprises valve body, spool and flow control device etc.; One end of described valve body is low pressure backwater mouth, and the other end is Flow-rate adjustment port, has high pressure backwater mouth on body wall, at valve inner, is also provided with interior valve port and water proof back-up ring, is connected to balance pipe and driving tube on body wall; Described spool passes from water proof back-up ring, which is provided with the valve block of valve port in shutoff; Described flow control device comprises end cap, flow control rod and power assistant spring etc.The utility model turn-offs reliable in action, decompression is adjusted convenient, the direct-connected use needs of the various high and low pressure circulatory systems can be met, and large mountain area heating system and the multiple workplace such as all variable-flow circulatory systems, the flow setting type circulatory system, closed system and deaerating type of cycles of heating system, air conditioner water circulating system, the ground discrepancy in elevation of high-rise can be widely used in.
Description
Technical field
The utility model relates to a kind of variable flow pressure control device, specifically a kind of direct-connected block device.
Background technique
In being arranged with the water circulation system (as heating system and air-conditioning system etc.) in He Di district, high district; because the pressure in the high district circulatory system is high; pressure in the Er Di district circulatory system is low; so; on the water return pipeline that is communicated with the high and low district circulatory system, all must install a direct-connected cutoff device additional, to turn-off the contact between the high and low district circulatory system when the system-down.But the direct-connected cutoff device ubiquity using at present has the not tight problem of shutoff.This is because the mobile process of the water outlet that the high pressure backwater of the high district circulatory system is connected in the water intake Xiang Yudi district circulatory system from direct-connected cutoff device, because pressure reduction is very large, what form is a kind of mode of operation of jet decompression, and the pressure of this jet is very large, can be when system-down, the smooth closure that stops shut-down mechanism in direct-connected cutoff device, thereby it is closed to cause direct-connected cutoff device can not realize effective shutoff, its consequence is the contact that can not cut off completely after system-down between the high district circulatory system Yu Di district circulatory system, this can cause the continuous rising of low district circulatory system pressure after system-down, thereby the Dui Di district circulatory system and equipment have a negative impact.
Model utility content
The purpose of this utility model is just to provide and a kind ofly can when system-down, realizes the direct-connected block device effectively turn-offing, to solve the problem that existing direct-connected cutoff device can not reliable turn-off.
The utility model is achieved in that a kind of direct-connected block device, includes:
Valve body, its one end is low pressure backwater mouth, the other end is Flow-rate adjustment port, has high pressure backwater mouth on body wall; On body wall, be connected to balance pipe and driving tube;
Interior valve port, is arranged on the described valve body of low pressure backwater mouth inside;
Water proof back-up ring, is fixed in described valve body, with the both sides of described interior valve port apportion at described high pressure backwater mouth;
Spool, is tube structure, from described water proof back-up ring, passes, and its one end is opening end, the other end be provided with can shutoff described in the valve block of valve port, in the cylindrical shell of described spool, be fixed with inner panel;
Piston, is fixed on the periphery of described valve core opening end, can slide along the inwall of described valve body;
End cap, sealing-in, in the outer end of the Flow-rate adjustment port of described valve body, is threaded with Flow-rate adjustment port;
Flow control rod, the Flow-rate adjustment port by described valve body penetrates in valve body, and is threaded with the core hole of described end cap, in order to regulate the size of water flow; And
Power assistant spring, is socketed on described flow control rod, and its one end leans the interior edge at described end cap, and the other end leans on the inner panel of described spool, in order to provide described spool to turn-off the auxiliary power of action.
Described balance pipe is opened near on the body wall of described Flow-rate adjustment port.
Described driving tube is opened on the body wall between described piston and water proof back-up ring.
The pump water pressure of the water pump that the utility model utilization and driving tube join, overcome the elastic force of power assistant spring, promote piston up in valve body, band movable valve plug moves opens valve block, utilize the position relationship of 90 ° of angles between high pressure backwater mouth and low pressure backwater mouth simultaneously, changed the pattern of jet decompression, normally the work decompression circulation of backwater Xiang Di district, Shi Gao district backwater of the system that realized; Built-in length by adjust flux adjustable lever in valve body, maximum opening that can regulating spool, the flow that makes to reduce pressure meets the job requirement of system.After water pump cuts out, the pressure of pump water disappears, the pressure of return water in high district is by balance pipe and by the thrust of power assistant spring, promotion spool is descending, valve port in positive closing, thereby effectively stop high district backwater by the dropping of direct-connected block device, overcome existing direct-connected cutoff device and turn-offed not tight chronic illness.
The utility model turn-offs reliable in action, decompression is adjusted convenient, the direct-connected use needs of the various high and low pressure circulatory systems can be met, and large mountain area heating system and the multiple workplace such as all variable-flow circulatory systems, the flow setting type circulatory system, closed system and deaerating type of cycles of heating system, air conditioner water circulating system, the ground discrepancy in elevation of high-rise can be widely used in.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, end cap, 2, balance pipe, 3, piston, 4, valve body, 5, Qian Cang, 6, interior valve port, 7, rubber cushion, 8, spool, 9, driving tube, 10, water proof back-up ring, 11, Hou Cang, 12, power assistant spring, 13, flow control rod, 14, high pressure backwater mouth, 15, low pressure backwater mouth, 16, inner panel.
Embodiment
As shown in Figure 1, the utility model comprises the parts such as valve body 4, spool 8 and flow control device.Valve body 4 can be made into cylindrical body, and its right-hand member is flanged (FLGD) low pressure backwater mouth 15, in order to connect low district water return pipeline; Having flanged (FLGD) high pressure backwater mouth 14 near on the body wall of low pressure backwater mouth, in order to connect high district water return pipeline.On the valve interior wall of low pressure backwater mouth 15 inside, be fixed with the interior valve port 6 of the smaller circle of internal diameter; On interior valve port 6, be fixed with the rubber cushion 7 on band gear edge, to realize sealing and the buffering of valve block when closed.In valve body 4, be also fixed with water proof back-up ring 10, water proof back-up ring 10 and interior valve port are listed in the left and right sides of high pressure backwater mouth 14 for 6 minutes.
Spool 8 is also a tube structure, and hermetically passing in the water proof back-up ring 10 from valve body 4, and its left end is opening end, right-hand member be provided with can shutoff in the valve block of valve port 6.In the cylindrical shell of spool 4, be fixed with inner panel 16.Periphery at spool 8 opening ends is fixed with piston 3, and piston 3 can reciprocatingly slide along the inner tube wall of valve body 4.
Flow control device is arranged in the Flow-rate adjustment port of valve body 4 left ends.The end cap 1 that has been threaded in the outer end of the Flow-rate adjustment port of valve body 4, with the Flow-rate adjustment port of sealing-in valve body 4.In the protruding end of end cap 1 end face, have core hole, in core hole, car is shaped with internal thread; The flow control rod 13 of screw shaped is threaded with the core hole in end cap 1 protruding end, and the Flow-rate adjustment port by valve body 4 penetrates in valve body 4, by the stopping of spool inner panel, in order to the aperture of regulating spool (being valve block), realizes the size adjustment of water flow.On flow control rod 13, be socketed with power assistant spring 12, one end of power assistant spring 12 leans the interior edge at end cap 1, and the other end leans on the inner panel 16 of spool 8, in order to provide spool 8 to turn-off the auxiliary power of action.
On the sidewall of valve body 4, be also connected to balance pipe 2 and driving tube 9.Balance pipe 2 is opened near on the body wall of Flow-rate adjustment port; Driving tube 9 is opened on the body wall between piston 3 and water proof back-up ring 10.
Working procedure of the present utility model is: the outer water pump of driving tube 9 on valve body 4, when system is normally worked, the pump water of water pump enters in the region in piston 3 in valve body 4 and the front storehouse 5 between water proof back-up ring 10, water pump water outlet pressure is greater than backwater zone pressure and overcomes the elastic force of power assistant spring 12, promote piston 3 band movable valve plugs 8 up (moving to left), make valve block depart from interior valve port 6, direct-connected block device is opened, the backwater of high sound zone system enters the water return pipeline of low sound zone system smoothly, the circulation of reducing pressure.The built-in length of adjust flux adjustable lever 13, maximum opening that can regulating spool 8, makes flow meet the normal job requirement of system.
When system-down, water pump are closed; front storehouse 5 decompressions of valve body 4; the external high pressure backwater of balance pipe 2 enters in the rear storehouse 11 in valve body 4; relend the elastic force that helps power assistant spring 12; promote together piston 3 and spool 8 descending (moving to right); make valve block close interior valve port 6, now the high water level pressure of backwater zone is blocked interior valve port 6 by brute force, thereby effectively stops dropping of Liao Gao district backwater.
Claims (3)
1. a direct-connected block device, is characterized in that, includes:
Valve body, its one end is low pressure backwater mouth, the other end is Flow-rate adjustment port, has high pressure backwater mouth on body wall; On body wall, be connected to balance pipe and driving tube;
Interior valve port, is arranged on the described valve body of low pressure backwater mouth inside;
Water proof back-up ring, is fixed in described valve body, with the both sides of described interior valve port apportion at described high pressure backwater mouth;
Spool, is tube structure, from described water proof back-up ring, passes, and its one end is opening end, the other end be provided with can shutoff described in the valve block of valve port, in the cylindrical shell of described spool, be fixed with inner panel;
Piston, is fixed on the periphery of described valve core opening end, can slide along the inwall of described valve body;
End cap, sealing-in, in the outer end of the Flow-rate adjustment port of described valve body, is threaded with Flow-rate adjustment port;
Flow control rod, the Flow-rate adjustment port by described valve body penetrates in valve body, and is threaded with the core hole of described end cap, in order to regulate the size of water flow; And
Power assistant spring, is socketed on described flow control rod, and its one end leans the interior edge at described end cap, and the other end leans on the inner panel of described spool, in order to provide described spool to turn-off the auxiliary power of action.
2. direct-connected block device according to claim 1, is characterized in that, described balance pipe is opened near on the body wall of described Flow-rate adjustment port.
3. direct-connected block device according to claim 1, is characterized in that, described driving tube is opened on the body wall between described piston and water proof back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319223.XU CN203926813U (en) | 2014-06-16 | 2014-06-16 | Direct-connected block device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319223.XU CN203926813U (en) | 2014-06-16 | 2014-06-16 | Direct-connected block device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926813U true CN203926813U (en) | 2014-11-05 |
Family
ID=51822624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319223.XU Expired - Fee Related CN203926813U (en) | 2014-06-16 | 2014-06-16 | Direct-connected block device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644436A (en) * | 2018-05-30 | 2018-10-12 | 华东矿用设备有限公司 | A kind of flow velocity adjustment type control valve |
-
2014
- 2014-06-16 CN CN201420319223.XU patent/CN203926813U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644436A (en) * | 2018-05-30 | 2018-10-12 | 华东矿用设备有限公司 | A kind of flow velocity adjustment type control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |