CN201531620U - Novel shutoff valve - Google Patents
Novel shutoff valve Download PDFInfo
- Publication number
- CN201531620U CN201531620U CN2009202373735U CN200920237373U CN201531620U CN 201531620 U CN201531620 U CN 201531620U CN 2009202373735 U CN2009202373735 U CN 2009202373735U CN 200920237373 U CN200920237373 U CN 200920237373U CN 201531620 U CN201531620 U CN 201531620U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- valve body
- coolant channel
- stop valve
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a novel shutoff valve, comprising a valve core, a valve body and a shutoff valve adaptor, wherein the valve body is internally provided with a refrigerant channel, and as the valve core is completely opened, the distance between a sealing end part of the valve core and a central line of the refrigerant channel is larger than or equal to the radius of the refrigerant channel. Increase of the valve body in length can reduce flow resistance of the refrigerant inside the valve body so as to lessen the pressure loss of the refrigerant in the shutoff valve, further achieving the purpose of enhancing energy efficiency of system.
Description
Technical field
The utility model relates to the domestic air conditioner field, the used valve of particularly a kind of family expenses detachable air conditioner.
Background technique
The family expenses detachable air conditioner is made up of indoor set and outdoor unit, air-conditioning need dock indoor set and outdoor unit when installing, generally be to realize connecting by two connecting tubes, liquid inlet pipe with indoor set is connected with the minor valve of outdoor unit, and another root is connected the gas collecting tube of indoor set with the big valve of outdoor unit.Usually, refrigerating capacity is at the air conditioner below 3 (comprising wall mounted machine and cabinet-type air conditioner), and the minor valve that uses is stop valve 1/4.
Stop valve 1/4 is a kind of of stop valve, and as shown in Figure 1, the stop valve of prior art comprises Non-return ring 1 ', spool 2 ', back cap nut 3 ', valve body 4 ', joint sealing cap 5 ', union nut 6 ', stop valve adapter 7 '.Coolant channel is arranged in the valve body, and the passage outside is sealed by joint sealing cap 5 ' and union nut 6 '.When the butt joint of indoor, outdoor unit, union nut 6 ' is removed, connect connecting tube.Spool 2 ' has one section to be threaded with valve body 4 ', and spool 2 ' can be advanced and retreat in the reach scope; When spool retreats to the Non-return ring 1 ' of outermost end, be the spool full-gear, coolant channel is opened fully under this state, the outdoor unit refrigeration agent from stop valve take over enter valve body after, enter connecting tube by coolant channel and enter indoor set; Correspondingly, when spool is threaded to inner end, be called the spool full-shut position, this state lower valve core is sealed coolant channel fully, and refrigeration agent can not enter coolant channel.This state is the state of air conditioner when dispatching from the factory, and installs to connect the connecting tube back valve core and will be rotated to full-gear in user family.
When refrigeration agent enters valve body and flows to connecting tube again, the flow direction has changed 90 °, existing stop valve 1/4 is when the spool full-gear, because valve body length is shorter, seal spool end 2a ' still exceeds coolant channel 4a ' sidewall 1-2mm, thereby the mobile generation of the refrigeration agent in the valve body is interfered, refrigeration agent flows in valve body and commutates when entering coolant channel like this, become big because of the interference that spool is arranged makes flow velocity on the flow section, the pressure loss increases, and then can cause system energy efficiency on the low side.Stop valve of the prior art is taken over 7 ' and is generally
Copper pipe, caliber is less, thus the refrigeration agent flow velocity is fast, and on-way resistance is relatively large.
Therefore need not interfere on a kind of flow section, the pressure loss is little, the stop valve that system energy efficiency is high.
Summary of the invention
The purpose of this utility model provides a kind of novel cutoff valve, the pressure loss of refrigeration agent in stop valve is reduced, thereby improve system energy efficiency.
The utility model is achieved in that
A kind of novel cutoff valve, comprise spool, valve body, stop valve adapter, coolant channel is arranged in the valve body, and the length increase of valve body makes spool when opening fully, and the distance of the hermetic terminal of described spool and described coolant channel center line is more than or equal to the radius of described coolant channel.This moment, the hermetic terminal of spool can not cause interference to liquid in the coolant channel mobile.More preferably, the distance of the hermetic terminal of spool and coolant channel sidewall is smaller or equal to 1mm.
Adopt internal diameter that stop valve takes over greater than
Copper pipe, as adopting internal diameter be
Stop valve take over, the curvature of its bending part is evenly and seamlessly transit.Stop valve adapter bending part its radius of curvature in its length and bending angle permission range is big as far as possible.By the diameter that enlarges the stop valve adapter flow velocity of liquid in pipe is slowed down, further to reduce the pressure loss; Increase the radius bend of taking over simultaneously, can reduce refrigeration agent and take over the bending part flow resistance.
The beneficial effects of the utility model are, the increase of valve body length can make the hermetic terminal of spool spool when full-gear can not reduce the flow area of refrigeration agent in coolant channel, therefore can reduce commutate in valve body pressure drag when mobile of refrigeration agent; Enlarge the internal diameter that stop valve takes over the flow velocity of refrigeration agent is slowed down, the pressure loss in the time of reducing refrigeration agent and in stop valve is taken over, flow, thus improve system energy efficiency.
Description of drawings
Fig. 1: the sectional view of the stop valve of prior art;
Fig. 2: the sectional view of stop valve of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is explained.
As shown in Figure 2, the present embodiment stop valve comprises Non-return ring 1, spool 2, back cap nut 3, valve body 4, joint sealing cap 5, union nut 6, stop valve adapter 7.The length of valve body 4 owing to extended, thus valve body 4 increases with spool 2 screw thread joint 4b length, and the hermetic terminal 2a of spool can not exceed coolant channel 4a sidewall when making spool 2 standard-sized sheets, therefore can not reduce the refrigerant flow channel section area; Increase stop valve simultaneously and take over 7 calibers, no longer adopt
Copper pipe, what present embodiment adopted is
Copper pipe in the intensity permission range, can select the stop valve of other caliber to take over; Make curvature that stop valve takes over 7 bending parts evenly and seamlessly transit in addition, and increase the radius of curvature that stop valve is taken over 7 bending part as far as possible, to reduce the flow resistance of refrigeration agent at bending part.
The foregoing description is the utility model preferred implementation; but mode of execution of the present utility model is not limited by the examples; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (3)
1. novel cutoff valve, comprise spool, valve body, stop valve adapter, coolant channel is arranged in the valve body, it is characterized in that: described spool is when opening fully, and the distance of the hermetic terminal of described spool and described coolant channel center line is more than or equal to the radius of described coolant channel.
2. novel cutoff valve according to claim 1 is characterized in that: described stop valve is taken over and is
Copper pipe.
3. novel cutoff valve according to claim 1 is characterized in that: the distance of the hermetic terminal of spool and coolant channel sidewall is smaller or equal to 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202373735U CN201531620U (en) | 2009-10-16 | 2009-10-16 | Novel shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202373735U CN201531620U (en) | 2009-10-16 | 2009-10-16 | Novel shutoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531620U true CN201531620U (en) | 2010-07-21 |
Family
ID=42527024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202373735U Expired - Lifetime CN201531620U (en) | 2009-10-16 | 2009-10-16 | Novel shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489776A (en) * | 2016-06-13 | 2017-12-19 | 株式会社不二工机 | Motor-driven valve |
-
2009
- 2009-10-16 CN CN2009202373735U patent/CN201531620U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489776A (en) * | 2016-06-13 | 2017-12-19 | 株式会社不二工机 | Motor-driven valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |
|
| CX01 | Expiry of patent term |