A three-phase medium mixed ratio same-direction proportional control valve

Abstract

The present invention provides a three-phase medium mixing ratio same-direction proportional control valve, comprising a shell, a small-proportion medium inlet, a medium-proportion medium inlet and a large-proportion medium inlet are arranged at the bottom of the shell, a small-proportion medium outlet, a medium-proportion medium outlet and a large-proportion medium outlet are arranged at the upper part of the shell; a small-proportion medium lower fixed core body hole, a medium-proportion medium lower fixed core body hole and a large-proportion medium lower fixed core body hole are arranged in the circumferential direction of the lower fixed core; a rotating core shaft is provided with a small-proportion medium rotating core hole, a medium-proportion medium rotating core hole and a large-proportion medium rotating core hole; an upper rotating shaft is rotatably connected with an upper fixed core; a small-proportion medium upper fixed core hole, a medium-proportion medium upper fixed core hole and a large-proportion medium upper fixed core hole are arranged in the circumferential direction of the upper fixed core. The present invention adopts a fluid mechanical structure designed according to the fluid flow law of a three-phase medium mixing ratio same-direction proportional control valve to realize the same-direction flow proportional control of three different fluids.

Description

Technical Field

[0001] The invention relates to the technical field of mixing equipment, in particular to a three-phase medium mixing ratio same-direction proportional control valve. Background Art

[0002] At present, in industrial foaming equipment, mixers, concrete spraying machines, and gas-liquid control equipment, three-phase different media need to be mixed in a certain fixed ratio. There are various control and adjustment methods for the control and regulation of three different types of media in different equipment. In the electrical control system, the electronic control system and its various instruments are often used to achieve proportional control of the flow of different medium liquids. The electrical instrument control system is complex, has high failure rates, and has high maintenance and repair costs; in pneumatic and gas-liquid control systems, flow control valves are often used to achieve independent control and regulation of single fluid flow. After repeated tests and adjustments, the proportional control of several fluid flows can be achieved, and the manual adjustment accuracy is low. In these devices, a digital explicit flowmeter is used to control and regulate the flow of a single fluid. This control and regulation method requires complex electronic circuit design, and uses complex electronic components and systems to achieve the control ratio of multiphase fluids. The structural design is complex and the equipment maintenance cost is high; especially for underground coal mine equipment, there are high requirements for explosion-proof, waterproof, and moisture-proof, and the equipment cost will be significantly increased. Summary of the invention

[0003] The purpose of the present invention is to provide a three-phase medium mixing ratio same-direction proportional control valve, which can realize the same-direction flow ratio control of three different fluids, is easy to operate, simple to use, is not restricted by explosion-proof and waterproof, and is adaptable to a wider range of working environments.

[0004] According to one object of the present invention, the present invention provides a three-phase medium mixing ratio same-direction proportional control valve, comprising a housing, a lower fixed core, a rotating core shaft and an upper fixed core, wherein a small-proportion medium inlet, a medium-proportion medium inlet and a large-proportion medium inlet are arranged at the bottom of the housing, and a small-proportion medium outlet, a medium-proportion medium outlet and a large-proportion medium outlet are arranged at the upper part of the housing;

[0005] The lower fixed core is arranged inside the shell, and the lower fixed core is provided with a small-proportion medium lower fixed core body hole, a medium-proportion medium lower fixed core body hole and a large-proportion medium lower fixed core body hole in the circumferential direction; the rotating mandrel is arranged inside the shell, and the rotating mandrel is located at the top of the lower fixed core, the rotating mandrel is composed of an upper rotating shaft and a bottom rotating core, and the bottom rotating core is provided with a small-proportion medium rotating core hole, a medium-proportion medium rotating core hole and a large-proportion medium rotating core hole in the circumferential direction;

[0006] The upper fixed core is arranged inside the shell, and an axial hole for the upper rotating shaft to pass through is provided inside the upper fixed core, and the upper rotating shaft is rotatably connected to the upper fixed core; a small-proportion medium upper fixed core hole, a medium-proportion medium upper fixed core hole and a large-proportion medium upper fixed core hole are provided in the surrounding direction of the upper fixed core; a rotating disk is fixed on the top of the shell, and a longitudinal hole is provided on the inner side of the rotating disk, and the upper rotating shaft is connected to the rotating handle by a thread, and the rotating handle passes through the longitudinal hole of the rotating disk.

[0007] Further, the fixed core hole at the bottom of the small-proportion medium, the fixed core hole at the bottom of the medium-proportion medium and the fixed core hole at the bottom of the large-proportion medium are respectively arranged corresponding to the small-proportion medium inlet, the medium-proportion medium inlet and the large-proportion medium inlet; the small-proportion medium rotating core hole, the medium-proportion medium rotating core hole and the large-proportion medium rotating core hole are respectively arranged corresponding to the fixed core hole at the bottom of the small-proportion medium, the medium-proportion medium lower fixed core hole and the large-proportion medium lower fixed core hole; the bottoms of the small-proportion medium upper fixed core hole, the medium-proportion medium upper fixed core hole and the large-proportion medium upper fixed core hole are respectively arranged corresponding to the small-proportion medium rotating core hole, the medium-proportion medium rotating core hole and the large-proportion medium rotating core hole; the tops of the small-proportion medium upper fixed core hole, the medium-proportion medium upper fixed core hole and the large-proportion medium upper fixed core hole are respectively arranged corresponding to the small-proportion medium discharge port, the medium-proportion medium discharge port and the large-proportion medium discharge port on the shell.

[0008] Furthermore, a rotating core outer seal is provided between the upper fixed core and the shell, and a rotating core inner seal is provided between the upper fixed core and the rotating core shaft.

[0009] Furthermore, a small-proportion medium inlet pipe, a medium-proportion medium inlet pipe and a large-proportion medium inlet pipe are respectively arranged below the shell body, which are corresponding to the small-proportion medium inlet, the medium-proportion medium inlet and the large-proportion medium inlet; a small-proportion medium discharge pipe, a medium-proportion medium discharge pipe and a large-proportion medium discharge pipe are also arranged on the shell body, which are corresponding to the small-proportion medium discharge port, the medium-proportion medium discharge port and the large-proportion medium discharge port.

[0010] Furthermore, a lower fixing pin is integrally formed at the bottom of the lower fixing core, and the lower fixing core is circumferentially fixed to the shell through the lower fixing pin.

[0011] Furthermore, the upper portion of the upper stationary core is circumferentially connected and fixed to the shell via an upper stationary core fixing tooth plate.

[0012] Furthermore, a dial is provided on the top of the upper fixed core, the dial is connected to the housing via a thread, and the dial is fixed to the upper fixed core via a dial fixing block.

[0013] Furthermore, the scale plate has scale marks, a closing block and an opening block.

[0014] Furthermore, an elastic sheet is filled between the scale plate and the upper fixed core.

[0015] Furthermore, the housing and the upper fixed core are fixed by an upper fixing pin.

[0016] The technical solution of the present invention adopts a fluid mechanical structure designed according to the fluid flow law of a three-phase medium mixing ratio same-direction proportional control valve to achieve same-direction flow proportional control of three different fluids. It is easy to operate, simple to use, not subject to explosion-proof and waterproof restrictions, and adaptable to a wider range of working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 For the embodiment of the present invention Figure 1 A cross-sectional view of HH in FIG.

[0020] Figure 3 For the embodiment of the present invention Figure 1 A cross-sectional view of GG in FIG.

[0021] In the figure, 1-shell; 2-lower fixed core; 201-lower fixed pin; 3-rotating mandrel; 4-upper fixed core; 401-upper fixed core fixed tooth plate; 5-rotating handle; 6-rotating disk; 7-rotating core inner seal; 8-scaled plate; 801-scaled plate mark; 802-stop block; 803-start-stop block; 9-rotating core outer seal; 10-spring sheet; 11-upper fixed pin; 12, small proportion medium inlet pipe; 13, medium proportion medium inlet pipe; 14, large proportion medium inlet pipe; 15, small proportion medium discharge pipe; 16, medium proportion medium discharge pipe; 17, large proportion medium discharge pipe;

[0022] 1001, small proportion medium import; 2001, medium proportion medium import; 3001, large proportion medium import;

[0023] 1002, fixed core hole under small proportion medium; 2002, fixed core hole under medium with medium ratio; 3002, fixed core hole under large proportion medium;

[0024] 1003, small proportion medium rotating core hole; 2003, medium proportion medium rotating core hole; 3003, large proportion medium rotating core hole;

[0025] 1004, fixed core hole on small proportion medium; 2004, fixed core hole on medium proportion medium; 3004, fixed core hole on large proportion medium;

[0026] 1005, small proportion medium discharge port; 2005, medium proportion medium discharge port; 3005, large proportion medium discharge port; DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example 1

[0031] like Figure 1-Figure 3 As shown,

[0032] A three-phase medium mixing ratio same-direction proportional control valve comprises a housing 1, a lower fixed core 2, a rotating core shaft 3 and an upper fixed core 4. The housing 1 is a main component and is used to install other components. A small-proportion medium inlet 1001, a medium-proportion medium inlet 2001 and a large-proportion medium inlet 3001 with different cross-sectional areas and shapes are arranged at the bottom of the housing 1. A small-proportion medium inlet pipe 12, a medium-proportion medium inlet pipe 13 and a large-proportion medium inlet pipe 14 are arranged below the housing 1 in correspondence with the small-proportion medium inlet 1001, the medium-proportion medium inlet 2001 and the large-proportion medium inlet 3001.

[0033] The upper part of the housing 1 is provided with a small-proportion medium discharge port 1005, a medium-proportion medium discharge port 2005 and a large-proportion medium discharge port 3005 of different cross-sectional areas. The housing 1 is also provided with a small-proportion medium discharge pipe 15, a medium-proportion medium discharge pipe 16 and a large-proportion medium discharge pipe 17 which are respectively arranged corresponding to the small-proportion medium discharge port 1005, the medium-proportion medium discharge port 2005 and the large-proportion medium discharge port 3005.

[0034] The lower fixed core 2 is arranged inside the housing 1, and a lower fixed pin 201 is integrally formed at the bottom of the lower fixed core 2. The lower fixed core 2 is circumferentially fixed to the housing 1 through the lower fixed pin 201. The small-proportion medium lower fixed core body hole 1002, the medium-proportion medium lower fixed core body hole 2002, and the large-proportion medium lower fixed core body hole 3002 of different cross-sectional areas and different shapes are processed at different radii along the circumferential direction of the lower fixed core 2. The small-proportion medium lower fixed core body hole 1002, the medium-proportion medium lower fixed core body hole 2002, and the large-proportion medium lower fixed core body hole 3002 are respectively arranged corresponding to the small-proportion medium inlet 1001, the medium-proportion medium inlet 2001, and the large-proportion medium inlet 3001.

[0035] The rotating core shaft 3 is arranged inside the shell 1, and the rotating core shaft 3 is located at the top of the lower fixed core 2. The rotating core shaft 3 is composed of an upper rotating shaft and a bottom rotating core. The bottom rotating core is processed with small-proportion medium rotating core holes 1003, medium-proportion medium rotating core holes 2003 and large-proportion medium rotating core holes 3003 of different cross-sectional areas and different shapes at different radii along the circumferential direction. The small-proportion medium rotating core holes 1003, medium-proportion medium rotating core holes 2003 and large-proportion medium rotating core holes 3003 are respectively arranged corresponding to the small-proportion medium lower fixed core body holes 1002, medium-proportion medium lower fixed core body holes 2002 and large-proportion medium lower fixed core body holes 3002.

[0036] The upper fixed core 4 is arranged inside the housing 1, and an axial hole for the upper rotating shaft of the rotating mandrel 3 to pass through is provided inside the upper fixed core 4, the upper rotating shaft is rotatably connected to the upper fixed core 4, and the upper part of the upper fixed core 4 is circumferentially connected and fixed to the housing 1 through the upper fixed core fixing tooth plate 401;

[0037] The upper fixed core 4 is provided with small-proportion medium upper fixed core holes 1004, medium-proportion medium upper fixed core holes 2004 and large-proportion medium upper fixed core holes 3004 of different cross-sectional areas and shapes at different radii around the upper fixed core 4. The bottoms of the small-proportion medium upper fixed core holes 1004, medium-proportion medium upper fixed core holes 2004 and large-proportion medium upper fixed core holes 3004 are respectively arranged corresponding to the small-proportion medium rotating core holes 1003, medium-proportion medium rotating core holes 2003 and large-proportion medium rotating core holes 3003. The upper parts of the small-proportion medium upper fixed core holes 1004, medium-proportion medium upper fixed core holes 2004 and large-proportion medium upper fixed core holes 3004 are respectively arranged corresponding to the small-proportion medium discharge ports 1005, medium-proportion medium discharge ports 2005 and large-proportion medium discharge ports 3005 on the housing 1.

[0038] A rotating disk 6 is fixed on the top of the shell 1 , and a radial hole is provided on the inner side of the rotating disk 6 . The upper rotating shaft of the rotating core shaft 3 is connected to the rotating handle 5 through a thread as a rotating component, and the rotating handle 5 passes through the radial hole of the rotating disk 6 .

[0039] In order to achieve sealing between the upper stationary core 4 and the housing 1, a rotating core outer seal 9 is provided between the upper stationary core 4 and the housing 1. In order to achieve sealing between the upper stationary core 4 and the rotating core shaft 3, a rotating core inner seal 7 is provided between the upper stationary core 4 and the rotating core shaft 3.

[0040] In this embodiment, a dial plate 8 is further provided on the top of the upper fixed core 4, and the dial plate 8 is fixed to the upper fixed core 4 through a dial plate fixing block 801. The dial plate 8 has a scale mark 81, a stop block 802, and an open stop block 803, and the dial plate 8 is connected to the housing 1 through a thread. An elastic sheet 10 is filled between the dial plate 8 and the upper fixed core 4, and the housing 1 and the upper fixed core 4 are fixed by an upper fixing pin 11.

[0041] The working principle of the present invention:

[0042] The rotating handle 5 is turned to drive the rotating core 3 to rotate, and the small-proportion medium rotating core hole 1003, the medium-proportion medium rotating core hole 2003 and the large-proportion medium rotating core hole 3003 respectively rotate with the corresponding small-proportion medium lower fixed core body hole 1002, the medium-proportion medium lower fixed core body hole 2002 and the large-proportion medium lower fixed core body hole 3002 in an overlapping manner:

[0043] The small proportion medium flows out from the small proportion medium discharge pipe 15 through the small proportion medium inlet pipe 12, the small proportion medium inlet 1001, the small proportion medium lower fixed core hole 1002, the small proportion medium rotating core hole 1003, the small proportion medium upper fixed core hole 1004, and the small proportion medium discharge port 1005.

[0044] The medium of the medium ratio flows out from the medium ratio medium discharge pipe 16 through the medium ratio medium inlet pipe 13, the medium ratio medium inlet 2001, the medium ratio medium lower fixed core hole 2002, the medium ratio medium rotating core hole 2003, the medium ratio medium upper fixed core hole 2004 and the medium ratio medium discharge port 2005.

[0045] The large-proportion medium flows out of the large-proportion medium discharge pipe 17 through the large-proportion medium inlet pipe 14, the large-proportion medium inlet 3001, the large-proportion medium lower fixed core hole 3002, the large-proportion medium rotating core hole 3003, the large-proportion medium upper fixed core hole 3004 and the large-proportion medium discharge port 3005. Due to the proportional design of the cross-sectional area, the medium control of the same direction proportional enlargement or reduction can be obtained.

[0046] The present invention is applicable to material mixing and foaming machines, mixers, concrete spraying machines, and gas-liquid control equipment, which require three-phase different media to be mixed in a certain fixed ratio. A three-phase medium mixing ratio unidirectional proportional control valve is used, and a fluid mechanical structure designed according to the fluid flow law is used to achieve unidirectional flow proportional control of three different fluids. The operation is convenient, the use is simple, and it is not subject to explosion-proof and waterproof restrictions, and it is adaptable to a wider range of working environments. For example, in the three-phase control of a pneumatic foaming machine, a small medium path is used to control the foaming agent, a medium medium path is used to control the air, and a large medium path is used to control the water. This control can relatively simply achieve proportional control of three different media, avoiding the design of electrical instruments and their complex circuits.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A three-phase medium mixing ratio same-direction proportional control valve, characterized in that: It comprises a shell, a lower fixed core, a rotating core shaft and an upper fixed core, wherein the bottom of the shell is provided with a small-proportion medium inlet, a medium-proportion medium inlet and a large-proportion medium inlet, and the upper part of the shell is provided with a small-proportion medium outlet, a medium-proportion medium outlet and a large-proportion medium outlet; The lower fixed core is arranged inside the shell, and the lower fixed core is provided with a small-proportion medium lower fixed core body hole, a medium-proportion medium lower fixed core body hole and a large-proportion medium lower fixed core body hole in the circumferential direction; the rotating mandrel is arranged inside the shell, and the rotating mandrel is located at the top of the lower fixed core, the rotating mandrel is composed of an upper rotating shaft and a bottom rotating core, and the bottom rotating core is provided with a small-proportion medium rotating core hole, a medium-proportion medium rotating core hole and a large-proportion medium rotating core hole in the circumferential direction; The upper fixed core is arranged inside the shell, and an axial hole for the upper rotating shaft to pass through is provided inside the upper fixed core, and the upper rotating shaft is rotatably connected with the upper fixed core; a small-proportion medium upper fixed core hole, a medium-proportion medium upper fixed core hole and a large-proportion medium upper fixed core hole are provided in the circumferential direction of the upper fixed core; a rotating disk is fixed on the top of the shell, and a longitudinal hole is provided on the inner side of the rotating disk, and the upper rotating shaft is connected with a rotating handle by a thread, and the rotating handle passes through the longitudinal hole of the rotating disk; The fixed core hole under the small-proportion medium, the fixed core hole under the medium-proportion medium and the fixed core hole under the large-proportion medium are respectively arranged corresponding to the small-proportion medium inlet, the medium-proportion medium inlet and the large-proportion medium inlet; the small-proportion medium rotating core hole, the medium-proportion medium rotating core hole and the large-proportion medium rotating core hole are respectively arranged corresponding to the fixed core hole under the small-proportion medium, the medium-proportion medium fixed core hole and the large-proportion medium fixed core hole; The bottoms of the fixed core hole on the small-proportion medium, the fixed core hole on the medium-proportion medium and the fixed core hole on the large-proportion medium are respectively arranged corresponding to the rotating core hole of the small-proportion medium, the rotating core hole of the medium-proportion medium and the rotating core hole of the large-proportion medium; The upper parts of the fixed core hole for small-proportion medium, the fixed core hole for medium in medium and the fixed core hole for large-proportion medium are respectively arranged corresponding to the small-proportion medium discharge port, the medium-proportion medium discharge port and the large-proportion medium discharge port on the shell; a rotating core outer seal is provided between the upper fixed core and the shell, and a rotating core inner seal is provided between the upper fixed core and the rotating core shaft.

2. The three-phase medium mixing ratio same-direction proportional control valve according to claim 1 is characterized in that: A small-proportion medium inlet pipe, a medium-proportion medium inlet pipe and a large-proportion medium inlet pipe are respectively arranged below the shell body, which are arranged corresponding to the small-proportion medium inlet, the medium-proportion medium inlet and the large-proportion medium inlet; a small-proportion medium discharge pipe, a medium-proportion medium discharge pipe and a large-proportion medium discharge pipe are also arranged on the shell body, which are arranged corresponding to the small-proportion medium discharge port, the medium-proportion medium discharge port and the large-proportion medium discharge port.

3. The three-phase medium mixing ratio same-direction proportional control valve according to claim 1 is characterized in that: A lower fixing pin is integrally formed at the bottom of the lower fixing core, and the lower fixing core is circumferentially fixed to the housing through the lower fixing pin.

4. The three-phase medium mixing ratio same-direction proportional control valve according to claim 1 is characterized in that: The upper portion of the upper fixed core is circumferentially connected and fixed to the shell through an upper fixed core fixing tooth plate.

5. The three-phase medium mixing ratio same-direction proportional control valve according to claim 1 is characterized in that: A dial is provided on the top of the upper fixed core. The dial is connected to the housing through a thread, and the dial is fixed to the upper fixed core through a dial fixing block.

6. The three-phase medium mixing ratio same-direction proportional control valve according to claim 5 is characterized in that: The scale plate is provided with scale marks, a closing stop block and an opening stop block.

7. The three-phase medium mixing ratio same-direction proportional control valve according to claim 5 is characterized in that: An elastic sheet is filled between the scale plate and the upper fixed core.

8. The three-phase medium mixing ratio same-direction proportional control valve according to claim 1 is characterized in that: The housing and the upper fixed core are fixed by an upper fixed pin.

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