CN202252123U

CN202252123U - Three-way ball valve

Info

Publication number: CN202252123U
Application number: CN2011203376649U
Authority: CN
Inventors: 杨松
Original assignee: SHANTOU ZHONGYEDA ELECTRICAL APPLIANCE EQUIPMENT CO Ltd
Current assignee: SHANTOU ZHONGYEDA ELECTRICAL APPLIANCE EQUIPMENT CO Ltd
Priority date: 2011-09-09
Filing date: 2011-09-09
Publication date: 2012-05-30
Anticipated expiration: 2021-09-09

Abstract

The utility model relates to a three-way ball valve, which comprises a valve body and a spherical valve core, wherein the valve body is provided with a main flow passage and two sub flow passages, wherein the two sub flow passages are positioned on the same straight line, the main flow passage is vertical to the two sub flow passages, the main flow passage and the sub flow passages are in T-shaped distribution, a crossed point position of the center axial line of the main flow passage and the center axial line of the two sub flow passages is the sphere center position of the spherical valve core, a rotating shaft line of the spherical valve core, the center axial line of the main flow passage and the center axial line of the two sub flow passages are in a pairwise vertical state, a groove is arranged on the spherical valve core, the extending radian of the groove on the spherical surface of the valve core is 180 degrees, the transverse width of the groove equals to the diameter of the main flow passage, and the area of each radial cross section of the groove of the spherical valve core equals to the cross sectional area of the main flow passage. The three-way ball valve has the advantages that in the process of regulating and changing the flow distribution proportion of the two sub flow passages, the flow rate and the fluid pressure inside the main flow passage cannot be sharply changed because of the opening cross section change of the two sub flow passages.

Description

Tee ball valve

Technical field

The utility model belongs to a kind of triple valve, relates in particular to a kind of tee ball valve that has spherical valve core.

Background technique

Triple valve can be realized the fluid particularly interflow and the shunting of liquid, is widely used in all trades and professions.Tee ball valve has a sprue and two runners, can realize the working method of multiple Different control break-make, but the most frequently used working method and purposes then is: under the state that keeps sprue to open, regulate the shunting ratio that changes two runners.Existing tee ball valve exists not enough in above-mentioned adjustment process; Specifically; In above-mentioned adjustment process, meeting is owing to two runner opening section rapid change, and the sprue opening section changes; The via area and the sprue cross-section area that add upper valve core are unequal, cause the inner hydrodynamic pressure rapid change of sprue.

Summary of the invention

The purpose of the utility model is a kind of tee ball valve to be provided overcoming above-mentioned shortcoming, it in regulating the process that changes two runners shunting ratio, the inner flow of sprue, hydrodynamic pressure can be because two runner opening sections change rapid change.

Its purpose can realize by following scheme: this tee ball valve comprises valve body, spherical valve core; Said valve body has a sprue and two runners; Two runners are located along the same line; Sprue is perpendicular to two runners, and sprue, runner are the T font and distribute, and the position of intersecting point of the central axis of sprue and two runner central axis is the sphere center position of spherical valve core; The shaft axis of spherical valve core, the central axis of sprue, two runner central axis threes are orthogonal in twos; Its main feature is that spherical valve core is provided with groove, and the radian that groove extends on the spool sphere is 180 °, and the horizontal width of groove equals the diameter of sprue, and the area of each radial cross section of spherical valve core groove equals the cross-section area of sprue.The radial cross section of so-called groove is long-pending, is meant the groove vallecular cavity area that the tangent plane of the shaft axis through spherical valve core is cut.The tangent plane of the shaft axis through spherical valve core has a lot of, and promptly radial cross section has a plurality ofly, and the area of each radial cross section is equal to the cross-section area of sprue.

The utlity model has following advantage and effect:

1, under the working state that sprue is opened, can regulate change two runners shunting ratio, in the process of regulating, the opening section of sprue remains unchanged; And in the process of regulating; The opening section of two runners is complementary; Promptly the numerical value after the section area addition of two runner openings is constant, so in the process of above-mentioned adjusting, although two runners opening section, flow separately can change; But two runner opening section sums can not change basically; The opening section of sprue remains unchanged, the total discharge of sprue not can because of two runners separately changes in flow rate and change, the inner hydrodynamic pressure of sprue not can because of two runners separately changes in flow rate and change; Add that the area of each radial cross section of spherical valve core groove equals the cross-section area of sprue, can guarantee that therefore the inner hydrodynamic pressure of sprue keeps stable.

Description of drawings

Fig. 1 is the internal structure schematic representation of valve body in the utility model specific embodiment.

Fig. 2 is the plan structure schematic representation of spool in the utility model specific embodiment.

Fig. 3 is the F-F cross-sectional view of spool shown in Figure 2.

Fig. 4 is the right elevation of spool shown in Figure 2.

Fig. 5 is first kind of working state schematic representation of the utility model specific embodiment.

Fig. 6 is second kind of working state schematic representation of the utility model specific embodiment.

Fig. 7 is the third working state schematic representation of the utility model specific embodiment.

Fig. 8 is the 4th a kind of working state schematic representation of the utility model specific embodiment.

Fig. 9 is the geometrical relationship schematic representation of the utility model specific embodiment two runner opening sections in regulating two runners shunting ratio process.

Embodiment

Fig. 1, Fig. 2, Fig. 3, Fig. 4, tee ball valve shown in Figure 5 comprise valve body 1, spherical valve core 2; Valve body has a sprue A and two runner B, C; Two runners are located along the same line; Sprue is perpendicular to two runners, and sprue, two runners are " T " shape and distribute, after valve body 1, spherical valve core 2 assemblings are accomplished; The intersection point O of the central axis m of sprue and two runner central axis n is the sphere center position of spherical valve core, and the central axis m of the shaft axis of spherical valve core, sprue, two runner central axis n threes are orthogonal in twos; Fig. 2, Fig. 3, shown in Figure 4, spherical valve core is provided with groove 21, and the radian that groove extends on the spool sphere is for being 180 ° (shown in Figure 3, the radian that groove extends is ∠ GOH) on the spool sphere.The horizontal width of groove 21 equals the diameter of sprue A, and the area of spherical valve core groove 21 each radial cross sections equals the cross-section area of sprue.

The tee ball valve of the foregoing description can be realized multiple working state, and state as shown in fig. 5 can realize that the complete conducting of A-B, C close; With 45 ° of the dextrorotation again of the spool of state shown in Figure 5, can obtain state shown in Figure 6, promptly realize the BC-A conducting; With one of the spool dextrorotation of state shown in Figure 6 angle less than 45 °, can obtain working state shown in Figure 7, promptly realize the A-BC conducting, and BC shunting ratio changes; The spool of state shown in Figure 7 is continued dextrorotation, can obtain working state shown in Figure 8, realize that promptly the complete conducting of A-C, B close.

Shown in Figure 9, in the process of regulating two runners shunting ratio, A runner opening is opened fully; The opening of B runner is the GS position, and the opening of C runner is the EH position, and G point and H point are about centre of sphere O symmetry; S point and R point are also about centre of sphere O symmetry, so EH+GS=EH+HR=ER this means; Although develop gradually the process of Fig. 8 state from Fig. 5 state, the opening part sectional area of B runner develops zero from maximum, and the opening part sectional area of C runner develops maximum from zero; But in above-mentioned evolution process, B runner, both opening section sums of C runner are constant, add that the area of each radial cross section of spherical valve core groove equals the cross-section area of sprue; Therefore can make the flow that flows into the A runner keep constant, make the pressure of A runner keep constant.

Claims

1. tee ball valve; Comprise valve body, spherical valve core; Said valve body has a sprue and two runners, and two runners are located along the same line, and sprue is perpendicular to two runners; Sprue, runner are the T font and distribute, and the position of intersecting point of the central axis of sprue and two runner central axis is the sphere center position of spherical valve core; The shaft axis of spherical valve core, the central axis of sprue, two runner central axis threes are orthogonal in twos; It is characterized in that: spherical valve core is provided with groove, and the radian that groove extends on the spool sphere is 180 °, and the horizontal width of groove equals the diameter of sprue, and the area of each radial cross section of spherical valve core groove equals the cross-section area of sprue.