CN202360816U - Energy-saving type check valve - Google Patents
Energy-saving type check valve Download PDFInfo
- Publication number
- CN202360816U CN202360816U CN 201120528177 CN201120528177U CN202360816U CN 202360816 U CN202360816 U CN 202360816U CN 201120528177 CN201120528177 CN 201120528177 CN 201120528177 U CN201120528177 U CN 201120528177U CN 202360816 U CN202360816 U CN 202360816U
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- Prior art keywords
- valve
- spool
- guide sleeve
- energy
- spring
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Abstract
The utility model relates to an energy-saving type check valve. The energy-saving type check valve is characterized in that the energy-saving type check valve comprises a valve body and a valve cover which is in threaded connection with the valve body, wherein a one-way valve is mounted in a cavity formed by the valve body and the valve cover, a water inlet and a water outlet are respectively formed at the end parts of the valve body and the valve cover, and the central lines of the water inlet, the water outlet and the one-way valve are consistent; the one-way valve comprises a valve seat, a valve core matched with the valve seat, a valve rod connected on the valve core and a guide sleeve in sliding fit with the valve rod, and a spring is arranged between the guide sleeve and the valve core; and a concave pit is arranged at the joint of the valve core and the valve rod, a magnet is inlaid in the concave pit, an armature is sheathed on the valve rod in a sliding manner, and the armature is fixedly connected with the guide sleeve. The energy-saving type check valve disclosed by the utility model has low energy consumption on the premise of not affecting the sealing performance.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of energy-saving safety check.
Background technique
In the pipe-line system of carrying liquid medium, for various reasons, flow backwards in order to prevent medium, generally use safety check.The structural type of safety check is more, and the essential structure of modal Through-conduit check valve is made up of parts such as housing, spool, valve rod, guide sleeve and springs, and two ends of housing endoporus are import and outlet, and the centre is provided with valve seat, and three's center line is consistent; Parts such as spool are installed in the endoporus of housing, and spool and valve rod fuse, and the valve rod cunning fits in the endoporus of guide sleeve, and valve core movement is play the guiding role, and the guide sleeve inner hole centreline is consistent with the safety check center line; Between spool and guide sleeve, be provided with spring, spring has certain pretightening force after installing, and the pretightening force size requires to design according to sealing force, and therefore under the situation of not water flowing, spool is close on the respective valve seat of housing endoporus all the time.When the difference of suffered import hydraulic pressure in spool two ends and outlet hydraulic pressure during greater than initial tension of spring, safety check is opened, and supplies water downstream after the water flowing.The deficiency of this safety check is: along with the increase of flow, the aperture of spool increases, and amount of spring compression increases; Spring force also increases with being directly proportional; The flow resistance that is liquid increases with being directly proportional, will inevitably consume more energy for this reason, especially higher to seal request heavy caliber safety check.
Summary of the invention
The purpose of the utility model is for solving a kind of lower resistance that above-mentioned deficiency designs but does not influence the energy-saving safety check of sealing force.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals: a kind of energy-saving safety check; It is characterized in that: the valve gap that has valve body and be threaded with valve body; In the cavity of valve body and valve gap formation, one-way valve is installed; The end of said valve body and valve gap forms water intake and water outlet respectively, and the center line of said water intake, water outlet and one-way valve is consistent; Said one-way valve comprises valve seat, and the spool that matches with valve seat is connected the valve rod on the spool, and the guide sleeve with the valve rod cunning is joined is equipped with spring between said guide sleeve and spool; Said spool and valve rod joint are provided with pit, are inlaid with magnet in the said pit, and said valve rod upper sliding sleeve has armature, and said armature is fixedly connected with guide sleeve.
The technological scheme of the utility model can also be further perfect:
As preferably, said guide sleeve is installed in the endoporus of valve body downstream, and compresses with valve gap, and the inner hole centreline that the back guide sleeve is installed is consistent with valve inlet/outlet center line;
The beneficial effect of the utility model is:
After the water flowing, when the difference of suffered import hydraulic pressure of spool two ends and outlet hydraulic pressure during greater than the pretightening force F1 of spring (referring to Fig. 2), safety check is opened, and supplies water downstream, and the aperture of spool changes with the flow size.Receive the acting in conjunction of spring force and magnetic force after spool is opened, because the two is in the opposite direction, so spool the close power suffered in arbitrary position is always less than the spring force of relevant position; In addition, rise, and magnetic force is index with the increase of compression distance and descends because spring force is linear with the increase of compression distance; Therefore, when reaching rated flow, when promptly spool is all opened; Permanent magnet and armature are nearest, the power of the closing minimum that spool is suffered, F2=F4 ﹣ F3; So just reduce the flow resistance of liquid effectively, reduced the loss of energy, played energy-conservation effect.
Description of drawings
Accompanying drawing 1 is a kind of structural section figure of the utility model;
Accompanying drawing 2 is the utility model and general check valve circulating resistance characteristic curve comparison diagram.
Description of reference numerals: 1, spool, 2, O-ring seals one, 3, permanent magnet, 4, packing ring, 5, spring seat, 6, helical spring; 7, armature, 8, valve body, 9, valve gap, 10, O-ring seals two; 11, guide sleeve, 12, valve rod, 13 jump rings, P1, inlet pressure, P2, outlet pressure.
Oblique line 1.-the spring force characteristic curve;
Curve 2.-permanent magnet and armature between the nonlinear characteristics curve of attraction force (magnetic force);
Curve 3.-nonlinear characteristics curve after spring force and magnetic force are synthetic;
The S-amount of spring compression;
S1-spring pre compressed magnitude;
The decrement of spring when the S2-spool is all opened;
F-acts on the power of closing on the spool;
The pretightening force of F1-spring, i.e. check valve seal power;
The power of the closing F2=F4-F3 that spool was suffered when the F2-spool was all opened;
The magnetic force that spool received when the F3-spool was all opened;
The spring force that spool received when the F4-spool was all opened.
Embodiment
Below through embodiment and combine accompanying drawing, the technological scheme of the utility model is further specified.
Embodiment:
Energy-saving safety check as shown in Figure 1, by spool 1, O-ring seals 1, permanent magnet 3, packing ring 4, spring seat 5, helical spring 6, armature 7, valve body 8, valve gap 9, O-ring seals 2 10, guide sleeve 11, valve rod 12, jump ring 13 are formed.Circular permanent magnet 3 relies on the corresponding shaft shoulder and the packing ring 4 of valve rod 12 to be pressed in the pit at spool 1 middle part, and for obtaining strong magnetic force, the material of permanent magnet adopts neodymium iron boron; Valve rod 12 adopts with spool 1 and is threaded, and valve rod 12 sliding fitting in the center hole of guide sleeve 11 play the guiding role to the motion of spool 1, drive permanent magnet during spool 1 motion and move together; Armature 7 is ferromagnetic substance, and it screws in the respective screw hole of guide sleeve 11, passes valve rod 12 in the center hole of armature 7, so armature 7 is fixed; Its internal diameter of spring seat 5 usefulness and corresponding end-faces are located on the permanent magnet 3; Between spring seat 5 and guide sleeve 11 corresponding pit bottom planes, be provided with spring 6; Spring 6 has certain pretightening force after installation; Therefore under the situation of not water flowing, the O-ring seals 1 on the spool 1 is close on the corresponding valve seat all the time; In addition, for fear of the ferromagnetic particle that permanent magnet 3 attracts in the medium, the maximum endoporus of spool 1 downstream inserts in the maximum outside diameter of guide sleeve 11 upstream extremities, and flow is big more, and insertion depth is dark more; Part in the valve body 8, except permanent magnet 3 with the armature 8, other is nonmagnetic substance.
Working principle:
Under the situation of not water flowing; O-ring seals 1 on the spool 1 is being close under the effect of spring 6 on the corresponding valve seat, and is as shown in Figure 1, and permanent magnet 3 is apart from the furthest of armature 7 at this moment; Suction between the two is almost nil, so sealing force equals the pretightening force (Fig. 2 F1) of spring 6.
After the water flowing, when the difference of suffered import hydraulic pressure of spool 1 two ends and outlet hydraulic pressure during greater than the pretightening force F1 of spring 6, safety check is opened, and supplies water downstream, and the aperture of spool 1 changes with the flow size.Receive the acting in conjunction of spring force and magnetic force after spool 1 is opened, because the two is in the opposite direction, so spool 1 the close power suffered in arbitrary position is always less than the spring force (Fig. 2 curve 3) of relevant position; In addition, rise (Fig. 2 oblique line 1), and magnetic force is index descend (Fig. 2 curve 2) with the increase of compression distance because spring force is linear with the increase of compression distance; Therefore, when reaching rated flow, when promptly spool 1 is all opened; Permanent magnet 3 is nearest with armature, the power of the closing minimum that spool 1 is suffered, F2=F4 ﹣ F3; So just reduce the flow resistance of liquid effectively, reduced the loss of energy, played energy-conservation effect.After the parameter of spring was confirmed, the size of flow resistance depended on the size of magnetic force fully, and the size of magnetic force depends on the distance of permanent magnet and armature, the quantity of material of the two and size and permanent magnet.The design of magnetic force must be noted that 2 points: the suction when 1, spool 1 is closed between permanent magnet 3 and the armature 7 should be as far as possible little, in order to avoid reduce sealing force; 2, after spool 1 is all opened, the F2 that makes a concerted effort should guarantee can reset reliably at the medium back valve core 1 that stops to circulate.
The principle of the utility model also is applicable to the safety check of other patterns.
Claims (2)
1. energy-saving safety check; It is characterized in that: the valve gap (9) that has valve body (8) and be threaded with valve body; In the cavity that valve body (8) and valve gap (9) form, one-way valve is installed; Said valve body (8) forms water intake and water outlet respectively with the end of valve gap (9), and the center line of said water intake, water outlet and one-way valve is consistent; Said one-way valve comprises valve seat, and the spool that matches with valve seat (1) is connected the valve rod (12) on the spool (1), with the sliding guide sleeve (11) of joining of valve rod (12), between said guide sleeve (11) and spool (1), spring (6) is housed; Said spool (1) is provided with pit with valve rod (12) joint, is inlaid with magnet (3) in the said pit, and said valve rod (12) upper sliding sleeve has armature (7), and said armature (7) is fixedly connected with guide sleeve (11).
2. energy-saving safety check according to claim 1 is characterized in that: said guide sleeve (11) is installed in the endoporus of valve body (8) downstream, and compresses with valve gap (9), and the inner hole centreline that back guide sleeve (11) is installed is consistent with valve inlet/outlet center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120528177 CN202360816U (en) | 2011-12-16 | 2011-12-16 | Energy-saving type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120528177 CN202360816U (en) | 2011-12-16 | 2011-12-16 | Energy-saving type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360816U true CN202360816U (en) | 2012-08-01 |
Family
ID=46572004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120528177 Expired - Lifetime CN202360816U (en) | 2011-12-16 | 2011-12-16 | Energy-saving type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360816U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563137A (en) * | 2011-12-16 | 2012-07-11 | 杭州春江阀门有限公司 | Energy-saving check valve |
| CN102853131A (en) * | 2012-08-30 | 2013-01-02 | 杭州春江阀门有限公司 | Water hammer-resistant constant-pressure pressure reducing valve |
| CN106974581A (en) * | 2017-04-20 | 2017-07-25 | 广东万家乐燃气具有限公司 | A kind of central hot water towel drying rack |
-
2011
- 2011-12-16 CN CN 201120528177 patent/CN202360816U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563137A (en) * | 2011-12-16 | 2012-07-11 | 杭州春江阀门有限公司 | Energy-saving check valve |
| CN102853131A (en) * | 2012-08-30 | 2013-01-02 | 杭州春江阀门有限公司 | Water hammer-resistant constant-pressure pressure reducing valve |
| CN102853131B (en) * | 2012-08-30 | 2013-11-27 | 杭州春江阀门有限公司 | Water hammer-resistant constant-pressure pressure reducing valve |
| CN106974581A (en) * | 2017-04-20 | 2017-07-25 | 广东万家乐燃气具有限公司 | A kind of central hot water towel drying rack |
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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: 20120801 |
|
| CX01 | Expiry of patent term |