Flow-adjustable T-shaped ball valve

Abstract

The utility model relates to the field of three-way valves, in particular to a T-shaped ball valve with adjustable flow, which comprises a valve cover, a valve body, a valve core and a sealing ring, the valve cover is fixed on the valve body through a fastening bolt, and a valve cavity and a water inlet and outlet end communicated with the valve cavity are arranged in the valve body. The water inlet and outlet end comprises a water inlet at the lower T-shaped end, and a left water outlet and a right water outlet at the upper T-shaped end; three round openings of a fluid channel of an existing ball valve element are changed into two oval openings and one round opening, the two oval openings are the same in shape and size, and the diameter of the long axis of each oval opening is not larger than the diameter of the corresponding round opening; by means of the arrangement, at the critical water outlet level, when the oval opening and the water inlet reach the critical opening point, a certain opening is formed between the round opening and the water outlet, the water outlet amount is guaranteed, meanwhile, the size of the valve element can be reduced, and the material cost of the valve element is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a three -way valve field, specifically is a flow adjustable T type ball valve. BACKGROUND

[0002] Three -way ball valve is 3 connecting port ball valve class valve. In engineering design, three -way ball valve often selected has T type and L type two, T type and L type three -way ball valve appearance is no difference, its difference lies in the valve core, divides into three -way and right -angle, namely T type and L type. The northwest region planting environment has wide and sparsely populated, water resource deficiency, planting area big etc. characteristics, pipe network end generally adopts big -diameter, many channel valves to satisfy the scene irrigation use, the most used T type three -way ball valve, this kind of valve adopts full diameter, no flow resistance design, greater flow can reduce the pump delivery power and energy -conserving, save irrigation time, is superior to solenoid valve and butterfly valve.

[0003] T type three -way ball valve in the scene actual use scene, inlet is at the bottom, outlet is at both sides, generally called right (A) outlet and left (B) outlet, T type three -way ball valve is through control valve core rotation angle change makes one orthogonal pipe and another 2 straight -through pipe realizes four kinds of intercommunication state, namely full -close, left -open, right -open, full -open, plays the role of the medium that flows through the valve divides, converges etc.

[0004] The utility model discloses a T type three -way ball valve, including valve body, valve core and valve rod, is set up on the valve body and has the valve cavity through rotating the valve core, realizes the simultaneous isolation of the connection channel on the valve core and each inlet end, the opening of the inlet and outlet of the valve core is all the same shape size circular opening, if want to guarantee certain water discharge, the volume of ball valve core needs to be designed relatively larger, and the material cost of valve core also increases along with it.

[0005] Therefore, effectively solve the problem that the volume of the existing T type three -way ball valve core is big and the cost is high, the utility model provides a flow adjustable T type ball valve. Utility model content

[0006] The utility model discloses a utility model aims at overcoming the defects described in the background art, to provide a flow adjustable T type ball valve.

[0007] In order to realize the above-mentioned purpose, the technical scheme of the utility model provides a flow adjustable T type ball valve, including valve cover, valve body, valve core, sealing ring, the valve body is opened with valve cavity and the water inlet outlet end that leads to the valve cavity, this water inlet outlet end includes the water inlet of T type lower end, left water outlet and right water outlet of T type upper end, the axis of water inlet, left water outlet, right water outlet is located on the same plane, the axis of left water outlet and right water outlet each is located on the same straight line, the axis of water inlet is perpendicular to the axis of left water outlet and right water outlet, the valve core is fixedly rotated in the valve cavity through bearing seat, the lower end of valve rod is connected with valve core, the axis of valve rod passes through another end and passes through valve body and is linked with external driving mechanism, the water inlet is equipped with the sealing cooperation of the close sealing of valve core outer wall, the fluid passage in the valve core is the open channel of the middle axis that is T type and penetrates valve core outer wall, the three open ends of open channel are respectively circular opening, oval opening one and oval opening two, the center of circular opening, the center of oval opening one, the center of oval opening two, the ball center of ball valve four points are located on the same plane and the above-mentioned plane is perpendicular to the axis of valve rod, the connecting line between the center of oval opening one and oval opening two center is located on the same plane with the axis of valve rod, the connecting line between the center of circular opening and the ball center of valve core is perpendicular to the connecting line between the center of oval opening one and oval opening two center, the sealing ring one, sealing ring two, sealing ring three of the same model size are included in the sealing ring, the water inlet is equipped with the sealing ring one of the close sealing of valve core outer wall, the left water outlet is equipped with the sealing ring three of the close sealing of valve core outer wall, the right water outlet is equipped with the sealing ring two of the close sealing of valve core outer wall,

[0008] The oval opening shape and size of oval opening one and oval opening two are same, the long axis diameter of oval opening one and oval opening two is not greater than the diameter size of circular opening, the diameter size of circular opening is not greater than the inner diameter size of sealing ring, the long axis of oval opening one and oval opening two extends along the vertical direction, that is, parallel to the rotation axis of valve rod, so that when the critical water outlet level is reached, the circular opening has a certain opening with the water outlet, thereby generating greater water flow, while ensuring the water flow, the volume of valve core can be reduced, and the cost is saved.

[0009] Preferably, the long axis diameter of oval opening one and oval opening two is equal to the diameter size of circular opening, and the ratio of the long axis size to the short axis size of oval opening one and oval opening two is 6:5.

[0010] Further, the material of sealing ring one, sealing ring two and sealing ring three is graphite, and the graphite sealing ring is made of low-sulfur expanded graphite by molding, which has the characteristics of expanded graphite and can withstand severe alternating temperature and pressure, and is an ideal sealing material for ball valve water inlet and outlet.

[0011] The utility model discloses the beneficial point at: through the three circular openings of the existing ball valve core fluid passage change two oval and one circular opening, two oval openings shape, size are same, and the long axis diameter of oval opening is not greater than the diameter size of circular opening, so set, when the critical water level, oval opening reaches critical open point with the water inlet, and circular opening has produced certain opening with the water outlet, guarantees the water quantity while can reduce the volume of valve core, saves the material cost of valve core. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure explosion schematic diagram of the utility model flow adjustable T type ball valve;

[0013] Figure 2 It is the structure inclined view of the utility model flow adjustable T type ball valve;

[0014] Figure 3 It is the structure inclined view of the utility model valve core;

[0015] Figure 4 It is the top view of the utility model valve core;

[0016] Figure 5 It is the side view of the utility model valve core;

[0017] Figure 6 It is the structure along the valve core middle axis of the utility model two sides water outlet full close state section view;

[0018] Figure 7 It is the structure along the valve core middle axis of the utility model right water outlet critical open point state section view;

[0019] Figure 8 It is the structure along the valve core middle axis of the utility model right water outlet full open state section view;

[0020] Figure 9 It is the structure along the valve core middle axis of the utility model from right water outlet water weak to left and right full open state section view;

[0021] In the drawing: 1. valve body, 101. water inlet, 102. right water outlet, 103. left water outlet, 104. valve cavity, 2. valve core, 201. circular opening, 202. oval opening one, 203. oval opening two, 204. valve rod, 3. seal ring, 301. seal ring one, 302. seal ring two, 303. seal ring three, 4. valve cover, 8. bearing seat, 9. fastening bolt. DETAILED DESCRIPTION

[0022] The utility model discloses a flow adjustable T type ball valve makes closer detailed description through specific implementation mode to one kind below combining the drawings.

[0023] As Figure 1 - Figure 9 The utility model discloses a flow adjustable T type ball valve provides, including valve cover 4, valve body 1, valve core 2, sealing ring 3, valve cover 4 passes through fastening bolt 9 and is fixed on valve body 1, be equipped with valve cavity 104 and with the water inlet outlet end that valve cavity 104 is open in valve body 1, valve cover 4 passes through fastening bolt 9 and is fixed on valve body 1, this water inlet outlet end includes T type lower end's water inlet 101, T type upper end's left water outlet 103 and right water outlet 102, the axis of water inlet 101, left water outlet 103, right water outlet 102 is located on the same plane, and the axis of left water outlet 103 and right water outlet 102 each is located on the same straight line, and the axis of water inlet 101 is perpendicular to the axis of left water outlet 103 and right water outlet 102, valve core 2 is fixed and rotates in valve cavity 104 through bearing seat 8, and the lower end of valve rod 204 is connected with valve core 2, and the axis of valve rod 204 passes through another end and passes through valve body 1 and is linked with external driving mechanism, the water inlet 101 is equipped with with valve core 2 outer wall close sealing cooperation, the fluid passageway in valve core 2 is the opening channel that is T type and penetrates valve core 2 outer wall, and the three opening ends of opening channel are round opening 201, oval opening one 202 and oval opening two 203, and the center of circle of round opening 201, the center of circle of oval opening one 202, the center of circle of oval opening two 203, the center of circle of ball valve four points are located on the same plane, and the above-mentioned plane is perpendicular to the axis of valve rod 204, and the connecting line between the center of circle of oval opening one 202 and the center of circle of oval opening two 203 is located on the same plane with the axis of valve rod 204, and the connecting line between the center of circle of round opening 201 and the center of circle of valve core 2 is perpendicular to the connecting line between the center of circle of oval opening one 202 and the center of circle of oval opening two 203;The sealing ring 3 includes the sealing ring one 301 of identical model size, sealing ring two 302, sealing ring three 303, the water inlet 101 is equipped with with valve core 2 outer wall close sealing cooperation sealing ring one 301, the left water outlet 103 is equipped with with valve core 2 outer wall close sealing cooperation sealing ring three 303, the right water outlet 102 is equipped with with valve core 2 outer wall close sealing cooperation sealing ring two 302;

[0024] The oval opening shape of oval opening one 202 and oval opening two 203, identical size, the long axis diameter of oval opening of oval opening one 202 and oval opening two 203 is not more than the diameter size of round opening 201, and the diameter size of round opening 201 is not more than the inner diameter size of sealing ring 3;The long axis of oval opening of oval opening one 202 and oval opening two 203 extends along the vertical direction, that is, parallel with the rotation axis of valve rod 204.

[0025] Figure 6 - Figure 8 The cross-sectional view of the right water outlet 102 when it is converted from the closed, critical water level, and water outlet closed state for the valve core 2 to rotate clockwise; Figure 6 As shown, the two sides of the water outlet are fully closed, and the elliptical opening one 202 and the elliptical opening two 203 of the valve core 2 are respectively communicated with the left water outlet 103 and the right water outlet 102, but the water inlet 101 is closed, at this time the ball valve is in the left and right fully closed state; as shown, Figure 7 As shown, when the valve core 2 rotates clockwise to the elliptical opening two 203 to the critical sealing point of the water outlet inner sealing ring 3, the circular opening 201 has a certain opening with the right water outlet 102, and then the right water outlet gradually increases with the clockwise rotation of the valve core 2, and the right water outlet 102 reaches full opening, as shown, Figure 8 As shown; Figure 9 The state diagram for the valve core 2 to continue to rotate clockwise from the Figure 8 state, the right water outlet gradually weakens, and the left and right water outlets are initially opened and fully opened; similarly, the valve core 2 rotates counterclockwise from the starting position, and can realize the left opening to the left and right fully open state.

[0026] Preferably, the major axis diameter of the elliptical opening of the elliptical opening one 202 and the elliptical opening two 203 is equal to the diameter size of the circular opening 201, and the ratio of the major axis size to the minor axis size of the elliptical opening of the elliptical opening one 202 and the elliptical opening two 203 is 6:5; in this way, it is more in line with actual processing and use. In actual use, when the valve core 2 rotates 47 degrees to the right, the right water outlet 102 is at the critical opening point; when the valve core 2 rotates 88 degrees to the right, the right water outlet 102 is fully open; when 88 degrees-94 degrees, the right water outlet 102 is fully open; when 94 degrees-133 degrees, the right water outlet is weakened; when the right water outlet is weakest, the valve core 2 rotates 133 degrees clockwise; when it reaches 137, the left and right water outlets begin to flow at the same time; when it reaches 176 degrees, the left and right water outlets are uniform and maximum.

[0027] Further, the materials of the sealing ring 3, the sealing ring two 302, and the sealing ring three 303 are graphite. The graphite sealing ring 3 is made of low-sulfur expanded graphite by molding, has the characteristics of expanded graphite, can withstand severe alternating temperature and pressure, and is an ideal sealing material for the ball valve inlet and outlet.

[0028] By changing the three circular openings 201 of the fluid passage of the existing ball valve core 2 to two elliptical openings and one circular opening 201, the two elliptical openings have the same shape and size, and the major axis diameter of the elliptical opening is not greater than the diameter size of the circular opening 201; in this way, at the critical water level, when the elliptical opening 201 reaches the critical opening point with the water inlet 101, the circular opening 201 has a certain opening with the water outlet, which can reduce the volume of the valve core 2 while ensuring the water flow, thereby saving the material cost of the valve core 2.

[0029] In the description of the utility model, it needs to understand that the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0030] The exemplary embodiments of the utility model are described in detail above with reference to preferred embodiments, however, those skilled in the art can understand that various modifications and improvements can be made to the above specific embodiments without departing from the concept of the utility model, and various combinations of the technical features and structures proposed by the utility model can be made without exceeding the protection scope of the utility model.

Claims

1. A T-type ball valve with adjustable flow, comprising a valve cover, a valve body, a valve core, and a sealing ring. The valve cover is fixed to the valve body by fastening bolts, and a valve cavity and a water inlet and outlet end communicating with the valve cavity are opened in the valve body, the water inlet and the water outlet end comprising a water inlet at the lower end of the T-shape, a left water outlet and a right water outlet at the upper end of the T-shape, the axes of the water inlet, the left water outlet and the right water outlet are located in the same plane, the axes of the left water outlet and the right water outlet are respectively located on the same straight line, the axis of the water inlet is perpendicular to the axes of the left water outlet and the right water outlet, the valve core is fixed and rotatably arranged in the valve cavity by a bearing seat, the lower end of the valve stem is connected to the valve core, the axis of the valve stem passes through the other end through the valve body and is linked to an external driving mechanism, the water inlet is provided with a sealing fit that is in close contact with the outer wall of the valve core, and is characterized in that: The fluid passage in the valve core is an open channel with a T-shaped central axis and passing through the outer wall of the valve core. The three open ends of the open channel are respectively a circular opening, an elliptical opening 1 and an elliptical opening 2. The center of the circular opening, the center of the elliptical opening 1, the center of the elliptical opening 2 and the center of the ball valve are located on the same plane and the above plane is perpendicular to the axis of the valve stem. The line between the center of the elliptical opening 1 and the center of the elliptical opening 2 is located on the same plane as the axis of the valve stem. The line between the center of the circular opening and the center of the ball of the valve core is perpendicular to the line between the center of the elliptical opening 1 and the center of the elliptical opening 2. The sealing rings include sealing ring 1, sealing ring 2, and sealing ring 3 of the same model and size. The water inlet is provided with sealing ring 1 that is tightly sealed with the outer wall of the valve core, the left water outlet is provided with sealing ring 3 that is tightly sealed with the outer wall of the valve core, and the right water outlet is provided with sealing ring 2 that is tightly sealed with the outer wall of the valve core; The elliptical openings of the elliptical openings 1 and elliptical openings 2 have the same shape and size, the major axis diameters of the elliptical openings of the elliptical openings 1 and elliptical openings 2 are not larger than the diameter of the circular opening, and the diameter of the circular opening is not larger than the inner diameter of the sealing ring; the major axes of the elliptical openings of the elliptical openings 1 and elliptical openings 2 extend in the vertical direction, that is, they are coplanar and parallel to the valve stem rotation axis.

2. A flow-adjustable T-type ball valve according to claim 1, characterized in that: The major axis diameters of the elliptical openings of the elliptical openings 1 and 2 are equal to the diameter of the circular opening, and the ratio of the major axis size to the minor axis size of the elliptical openings of the elliptical openings 1 and 2 is 6:

5.

3. The flow-adjustable T-type ball valve according to claim 1, characterized in that: The material of the sealing ring 1, the sealing ring 2 and the sealing ring 3 is graphite.

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