CN203036023U - Fusiform adjustable check valve - Google Patents

Fusiform adjustable check valve Download PDF

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Publication number
CN203036023U
CN203036023U CN 201220624616 CN201220624616U CN203036023U CN 203036023 U CN203036023 U CN 203036023U CN 201220624616 CN201220624616 CN 201220624616 CN 201220624616 U CN201220624616 U CN 201220624616U CN 203036023 U CN203036023 U CN 203036023U
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CN
China
Prior art keywords
valve
conduit
cylinder body
guide tube
barrel
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.)
Withdrawn - After Issue
Application number
CN 201220624616
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Chinese (zh)
Inventor
陈铁军
朱兢兢
宋良锰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KAITAI VALVE (GROUP) CO Ltd
Original Assignee
KAITAI VALVE (GROUP) CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KAITAI VALVE (GROUP) CO Ltd filed Critical KAITAI VALVE (GROUP) CO Ltd
Priority to CN 201220624616 priority Critical patent/CN203036023U/en
Application granted granted Critical
Publication of CN203036023U publication Critical patent/CN203036023U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a fusiform adjustable check valve. According to the fusiform adjustable check valve, a left valve body and a right valve body are connected into a whole. A valve seat is arranged on the inner ring of a connecting end, connected with the left valve body, of the right valve body. A cylinder body is arranged in a right valve body cavity. The head end of the cylinder body is a streamlined protrusion, and faces an inlet end of the right valve body. A shaft sleeve is arranged in the center of an outlet end of the left valve body. A valve rod and a piston are respectively arranged on two sides of a fusiform valve flap. The fusiform valve flap is arranged inside a left valve body cavity, and when the fusiform valve flap is abutted against the valve seat, the fusiform adjustable check valve is closed. The valve rod penetrates into the shaft sleeve of the outlet end of the left valve body. The piston is arranged inside the cylinder body. A spring is sleeved inside the valve rod, and is arranged between the shaft sleeve and the fusiform valve flap. The right valve body is provided with a first guide tube, a second guide tube, a third guide tube and a fourth guide tube, wherein the right valve body cavity is respectively communicated with the first guide tube and the second guide tube, and an inner cavity of the cylinder body is respectively communicated with the third guide tube and the fourth guide tube. A first adjusting valve is connected with the first guide tube and the third guide tube. A second adjusting valve is connected with a one-way valve in series, and is connected with the second guide tube and the fourth guide tube. The fusiform adjustable check valve has the advantages of being multifunctional, reducing usage amount of system equipment, reducing cost and workload of maintenance, reducing flow resistance of media, and reducing energy consumption.

Description

The adjustable check valve of fusiformis
Technical field
The utility model relates to the adjustable check valve of a kind of fusiformis.
Background technique
Check valve belongs to the self-acting valve class, and Applicable media is water, wet goods liquid.Predominant use is to prevent that the medium in the pipeline from flowing backwards, and for example is installed on the delivery side of pump place, can close automatically when pump stops, and prevents that medium from flowing backwards and consequent water hammer, the safety of protection pipeline and pump.Check valve can be widely used on the pipeline in fields such as petrochemical industry, metallurgy, electric power, town water supply.
Traditional check valve is generally in the majority with rotary-open type, rise-fall type, and its flap is disc and function singleness, only has check function, such check valve does not have anti-water hammer function, shake when closing acutely, the destruction of causing pipeline and pump easily, and huge noise causes environmental pollution.Generally near pump, need to install water-hammer arrester for this reason.Require during the other starting mode of pump after power is raised to certain value, slowly to open the pump discharge valve again, so at delivery side of pump a check valve and an electric valve need be installed, slowly open electric valve when pipeline pressure is elevated to certain value behind the pump again.
Have a kind of rotary-open type to have the check valve of Slow Close function at present, the volume of the slow closing device of this check valve body and peripheral hardware is all huger, and slow closing device is more complicated also, and what have also needs to be with weight or electro-hydraulic device, and price is very high, valve installation and maintenance inconvenience.
Now the check valve of axial flow rise-fall type does not have all that Slow Close is gentle opens function, can not prevent water hammer; The straight-through rise-fall type check valve of band diaphragm has the Slow Close function, but the same with other rise-fall type check valve the defective that volume is big, flow resistance is big is arranged, and medium is turned through this valve pocket the time greatly, Volume Changes is violent, causes very big flow resistance.
In sum, present all kinds of check valves are owing to be subjected to the restriction of principle, structure, and it exists function singleness, poor-performing, perhaps shortcomings such as big, the complex structure of volume, installation and maintenance inconvenience, cost height.
Summary of the invention
Technical problem to be solved in the utility model provides the adjustable check valve of a kind of fusiformis, this check valve adopts unique working principle and structure, overcome the defective of traditional check valve, gather multi-function in integral whole, multi-purpose valve has reduced the system equipment use amount, reduced equipment cost, reduce the plant maintenance workload, reduced the medium flow resistance simultaneously, energy-saving and cost-reducing.
For solving the problems of the technologies described above, the adjustable check valve of the utility model fusiformis comprises left valve barrel, right valve barrel, valve rod, the fusiformis flap, piston, spring, cylinder body, first modulating valve, second modulating valve and one-way valve, described left valve barrel and right valve barrel abutting end connect and compose integral body, the connecting end inner ring of described right valve barrel and left valve barrel is provided with valve seat, described cylinder body is located in the described right valve barrel cavity, described cylinder body head end is streamline projection and towards the entrance point of described right valve barrel, described left valve barrel outlet end center is provided with axle sleeve, described valve rod and piston are located at described fusiformis flap both sides respectively, described fusiformis flap is positioned at described left valve barrel cavity, described fusiformis flap during against described right valve barrel valve seat check valve close, described valve rod penetrates in the axle sleeve of described left valve barrel outlet end, described piston is positioned at described cylinder body, described spring is inserted in described valve rod and between described axle sleeve and fusiformis flap, described right valve barrel is respectively equipped with first conduit and second conduit that is communicated with the right valve barrel cavity and the 3rd conduit and the 4th conduit that is communicated with described inner chamber of cylinder block, described the 3rd conduit and the 4th conduit arrange at interval, the 4th conduit is positioned at the cylinder bottom of described cylinder body, described first modulating valve connects described first conduit and the 3rd conduit, and described second modulating valve is with the one-way valve series connection and be connected described second conduit and the 4th conduit.
Further, this check valve also comprises first seal ring and second seal ring, and described first seal ring is located between described right valve barrel and the left valve barrel, and described second seal ring is located at described cylinder body inner ring and between described piston and cylinder body.
Because the adjustable check valve of the utility model fusiformis has adopted technique scheme, the left valve barrel and the right valve barrel abutting end that are this check valve connect and compose integral body, the connecting end inner ring of right valve barrel and left valve barrel is provided with valve seat, cylinder body is located in the right valve barrel cavity, the cylinder body head end is streamline projection and towards the entrance point of right valve barrel, left valve barrel outlet end center is provided with axle sleeve, valve rod and piston are located at fusiformis flap both sides respectively, the fusiformis flap be positioned at the left valve barrel cavity and during against the right valve barrel valve seat check valve close, valve rod penetrates in the axle sleeve of left valve barrel outlet end, piston is positioned at cylinder body, spring is inserted in valve rod and between axle sleeve and fusiformis flap, right valve barrel is respectively equipped with first conduit of connection right valve barrel cavity and the 3rd conduit and the 4th conduit of second conduit and connection inner chamber of cylinder block, first modulating valve connects first conduit and the 3rd conduit, and second modulating valve is with the one-way valve series connection and be connected second conduit and the 4th conduit.This check valve has overcome the defective of traditional check valve, gathers multi-function in integral whole, and multi-purpose valve, anti-water hammer effect is obvious, has reduced the system equipment use amount, has reduced cost, reduces the plant maintenance workload, has reduced the medium flow resistance simultaneously, has reduced energy consumption.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the structural representation of the adjustable check valve of the utility model fusiformis;
Fig. 2 is the structural representation of the adjustable check valve closed condition of this fusiformis;
Fig. 3 is A portion enlarged view among Fig. 2.
Embodiment
As shown in Figure 1, the adjustable check valve of the utility model fusiformis comprises left valve barrel 1, right valve barrel 2, valve rod 4, fusiformis flap 3, piston 5, spring 7, cylinder body 6, first modulating valve 91, second modulating valve 92 and one-way valve 93, described left valve barrel 1 and right valve barrel 2 abutting ends connect and compose integral body, described right valve barrel 2 is provided with valve seat 21 with the connecting end inner ring of left valve barrel 1, described cylinder body 6 is located in described right valve barrel 2 cavitys, described cylinder body 6 head ends are streamline projection 65 and towards the entrance point of described right valve barrel 2, described left valve barrel 1 outlet end center is provided with axle sleeve 11, described valve rod 4 and piston 5 are located at described fusiformis flap 3 both sides respectively, described fusiformis flap 3 is positioned at described left valve barrel 1 cavity, described fusiformis flap 3 during against the valve seat 21 of described right valve barrel 2 check valve close, described valve rod 4 penetrates in the axle sleeve 11 of described left valve barrel 1 outlet end, described piston 5 is positioned at described cylinder body 6, described spring 7 is inserted in described valve rod 4 and between described axle sleeve 11 and fusiformis flap 3, described right valve barrel 2 is respectively equipped with first conduit 61 and second conduit 62 that is communicated with right valve barrel 2 cavitys and the 3rd conduit 63 and the 4th conduit 64 that is communicated with described cylinder body 6 inner chambers, described the 3rd conduit 63 and the 64 interval settings of the 4th conduit and the 4th conduit 64 are positioned at the cylinder bottom of described cylinder body 6, described first modulating valve 91 connects described first conduit 61 and the 3rd conduit 63, and described second modulating valve 92 is with one-way valve 93 series connection and be connected described second conduit 62 and the 4th conduit 64.
Further, this check valve also comprises first seal ring 81 and second seal ring 82, and described first seal ring 81 is located between described right valve barrel 2 and the left valve barrel 1, and described second seal ring 82 is located at described cylinder body 6 inner rings and between described piston 5 and cylinder body 6.
The working principle of this check valve is as described below, fluid enters valve pocket through the entrance point of right valve barrel 2, and fusiformis flap 3 overcomes spring 7 active forces and is moved to the left vertically under the effect of fluid medium pressure, and spring 7 is compressed simultaneously, fusiformis flap 3 breaks away from the valve seat 21 of right valve barrel 2, and check valve is opened; Driving piston 5 in fusiformis flap 3 moving process moves outside cylinder body 6, flowing medium in right valve barrel 2 cavitys enters cylinder body 6 inner chambers through second conduit 62, second modulating valve 92, one-way valve 93 and the 4th conduit 64 successively at this moment, just can change the speed that flowing medium enters cylinder body 6 inner chambers by the aperture of regulating second modulating valve 92, also just play the travelling speed that changes piston 5 and fusiformis flap 3, thereby realized regulating the opening speed of check valve.In addition, in the opening process, fluid also simultaneously enters cylinder body through first conduit 61, first modulating valve 91, the 3rd conduit 63, but when opening speed was regulated, first modulating valve 91 can be regulated.The streamline projection 65 of cylinder body 6 head ends and fusiformis flap constitute the rectification body of flowing medium, play to reduce the flowing medium resistance, the effect that cuts down the consumption of energy.
As shown in Figures 2 and 3, when termination of pumping or the reduction of right valve barrel 2 entrance point hydrodynamic pressures, flowing medium flows backwards, and fusiformis flap 3 moves right together with piston 5 under the acting in conjunction of fluid medium pressure and spring 7, until the valve seat 21 of fusiformis flap 3 against right valve barrel 2, check valve is closed; The flowing medium of cylinder body 6 inner chambers is pushed back right valve barrel 2 cavitys through the 3rd conduit 63, first modulating valve 91 and first conduit 61 by piston 5 successively during this time, by regulating the aperture of first modulating valve 91, just can change the flowing medium back-flow velocity, also just change the speed of the movement of piston 5 and fusiformis flap 3, thereby realized regulating the closing velocity of check valve; After the 3rd conduit 63 is crossed in piston 5 bottoms; the passage of cylinder body 6 cavity fluid medium back flow is further dwindled; only rely on the gap 51 between piston 5 and the cylinder body 6 to reflux through the 3rd conduit 63, first modulating valve 91, first conduit 61; the closing velocity of fusiformis flap 3 is littler; so just formed closing velocity first quick and back slow, made and eliminate water hammer and to the protection better effects if of pump.
This check valve principle uniqueness, manufacture cost is relatively low, and is convenient for installation and maintenance, except having check function, also has following function and characteristics:
A. the adjustable gate opening speed satisfies pump performance characteristic, can replace the pump discharge electric valve;
B. the closing velocity of realizing check valve is adjustable, can effectively prevent water hammer, and the safety of protection pipeline and pump is saved the installation water-hammer arrester;
C. the rectification body of distinctive fusiformis flap and flowing medium import design makes that this check valve is littler than the flow resistance of other check valves, flow is big, has energy-conservation effect;
D. traditional check valve volume of the equal bore of this check valve littler, more save material, low cost of manufacture;
E. but this check valve level or vertical the installation have been expanded the application of check valve, and it is more convenient to use;
F. this check valve need not external power such as electricity, gas, liquid, only relies on pipeline inner fluid medium self pressure and corresponding control unit can realize all functions.
This check valve has overcome the defective of traditional check valve, adopt and the diverse working principle of traditional check valve and the design of valve internals, make this check valve have new function, it gathers multi-function in integral whole, multi-purpose valve has reduced the system equipment use amount, has reduced investment, reduce maintenance workload, had little, the energy-saving and cost-reducing advantage of flow resistance simultaneously.

Claims (2)

1. adjustable check valve of fusiformis, it is characterized in that: this check valve comprises left valve barrel, right valve barrel, valve rod, the fusiformis flap, piston, spring, cylinder body, first modulating valve, second modulating valve and one-way valve, described left valve barrel and right valve barrel abutting end connect and compose integral body, the connecting end inner ring of described right valve barrel and left valve barrel is provided with valve seat, described cylinder body is located in the described right valve barrel cavity, described cylinder body head end is streamline projection and towards the entrance point of described right valve barrel, described left valve barrel outlet end center is provided with axle sleeve, described valve rod and piston are located at described fusiformis flap both sides respectively, described fusiformis flap is positioned at described left valve barrel cavity, described fusiformis flap during against described right valve barrel valve seat check valve close, described valve rod penetrates in the axle sleeve of described left valve barrel outlet end, described piston is positioned at described cylinder body, described spring is inserted in described valve rod and between described axle sleeve and fusiformis flap, described right valve barrel is respectively equipped with first conduit and second conduit that is communicated with the right valve barrel cavity and the 3rd conduit and the 4th conduit that is communicated with described inner chamber of cylinder block, described the 3rd conduit and the 4th conduit arrange at interval and the 4th conduit is positioned at the cylinder bottom of described cylinder body, described first modulating valve connects described first conduit and the 3rd conduit, and described second modulating valve is with the one-way valve series connection and be connected described second conduit and the 4th conduit.
2. the adjustable check valve of fusiformis according to claim 1, it is characterized in that: this check valve also comprises first seal ring and second seal ring, described first seal ring is located between described right valve barrel and the left valve barrel, and described second seal ring is located at described cylinder body inner ring and between described piston and cylinder body.
CN 201220624616 2012-11-23 2012-11-23 Fusiform adjustable check valve Withdrawn - After Issue CN203036023U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220624616 CN203036023U (en) 2012-11-23 2012-11-23 Fusiform adjustable check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220624616 CN203036023U (en) 2012-11-23 2012-11-23 Fusiform adjustable check valve

Publications (1)

Publication Number Publication Date
CN203036023U true CN203036023U (en) 2013-07-03

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ID=48688152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220624616 Withdrawn - After Issue CN203036023U (en) 2012-11-23 2012-11-23 Fusiform adjustable check valve

Country Status (1)

Country Link
CN (1) CN203036023U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103836237A (en) * 2012-11-23 2014-06-04 凯泰阀门(集团)有限公司 Shuttle-shaped adjustable check valve
CN104235441A (en) * 2014-09-03 2014-12-24 黄健山 Backflow blocking valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103836237A (en) * 2012-11-23 2014-06-04 凯泰阀门(集团)有限公司 Shuttle-shaped adjustable check valve
CN104235441A (en) * 2014-09-03 2014-12-24 黄健山 Backflow blocking valve
CN104235441B (en) * 2014-09-03 2016-08-24 黄健山 backflow prevention valve

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20130703

Effective date of abandoning: 20171212