A long-life, ultra-fast, high-precision control valve with multiple variable separation design

Abstract

The present invention discloses a long-life ultra-fast high-precision regulating valve with a multiple variable separation design, including a valve internal flow channel, a regulating valve inlet, a regulating valve outlet, a fast switch standard module and a flow control module; the inlets of the multiple valve internal flow channels are connected to the regulating valve inlet, and the outlets are connected to the regulating valve outlet, and a fast switch standard module and a flow control module are respectively arranged on each valve internal flow channel; the fast switch standard module is used to control the opening and closing of the corresponding valve internal flow channel, and the flow control module is used to control the flow opening of the corresponding valve internal flow channel. The present invention decomposes the original flow channel into multiple valve internal flow channels with different flow openings, and can achieve different flow opening adjustments through the mutual combination of opening and closing between the valve internal flow channels with different flow openings.

Description

Technical Field

[0001] The invention belongs to the technical field of flow regulating devices, and in particular relates to a long-life, ultra-fast, high-precision regulating valve with a multiple variable separation design. Background Art

[0002] Most of the flow control valves at home and abroad use springs or pneumatic regulators with positioners to achieve flow percentage adjustment. Due to the complexity of the valve mechanism, precise positioning is required when adjusting, and repeated positioning is required. The adjustment time takes about 1 second, or even longer. It is impossible to achieve ultra-fast adjustment, and the life is relatively short. Generally, it can be achieved hundreds of thousands of times, and it is impossible to achieve long life. Due to the complex structure, the material structure strength cannot be guaranteed when miniaturization is carried out. If ultra-fast adjustment is to be achieved at the same time, the life will be even shorter. Large-scale miniaturization is universal, which becomes a contradiction. The positioning accuracy of the spring is not high, and it will vibrate under the action of external force. It can only be positioned after the vibration decays. The response time is long, the positioning accuracy is not high, and the reproducibility stability is poor. The positioning accuracy of the one-way pneumatic regulator is poor, and the two-way pneumatic regulator supplies air from two directions. It needs to repeatedly locate and position, the response speed is slow, the positioning time is long, and the pneumatic regulator has high environmental requirements, poor adaptability, and poor reproducibility. The top foreign pneumatic control valves can respond to 1 second, and are expensive, short-lived, and low-precision. They cannot meet the requirements of modern industrialization, and cannot match the control accuracy and response speed of automation, which greatly reduces the level of industrial automation.

[0003] With the development of industrialization, production efficiency has been greatly increased, high-speed wire has reached 120 meters per second, and many products move more than ten meters every 100 milliseconds. For the rapidity of flow control valves, it is hoped that it will reach the millisecond level, which requires ultra-high speed and high strength and long life. This contradiction seriously restricts the design of long-life ultra-high-speed control valves; at the same time, flow is also an important process parameter, and the accuracy requirements are getting higher and higher. First, it requires high percentage accuracy, second, it requires higher and higher precision levels, and third, it requires high repeatability. The 1 / 4-inch and 1 / 8-inch precision control valves are very small in size, and they are subject to great force during ultra-high-speed adjustment. There is no suitable material and heat treatment process under ultra-high-speed frequent actions; with the increase in production capacity, the operating rate is getting higher and higher, and the requirements for life are also constantly increasing, hoping to reach a life of more than one million times; and it is hoped that it can adapt to different industrial environments. The performance of flow control valves plays a key role in industrial automation control systems in the fields of petroleum, chemical industry, metallurgy, etc.

[0004] There is no specialized multivariable separation new long-life ultra-fast regulating valve to solve the problems of ultra-fast fluid flow regulation, precise flow control, high-precision flow control, and long-life application. Summary of the invention

[0005] The object of the present invention is to provide a long-life, ultra-fast, high-precision regulating valve with a multiple variable separation design to solve at least one of the above problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A long-life ultra-fast high-precision regulating valve with multiple variable separation design, including a flow distribution channel in the valve, a regulating valve inlet, a regulating valve outlet, a fast switching standard module and a flow control module;

[0008] The inlets of the plurality of flow-dividing channels in the valve are all connected to the inlet of the regulating valve, and the outlets are all connected to the outlet of the regulating valve. A fast switching standard module and a flow control module are respectively arranged on each of the flow-dividing channels in the valve; the fast switching standard module is used to control the opening and closing of the corresponding flow-dividing channel in the valve, and the flow control module is used to control the flow opening of the corresponding flow-dividing channel in the valve.

[0009] Further, the fast switching standard module includes a wear-resistant cylinder, a fast switching standard module valve seat, and a fast switching standard module valve body;

[0010] The quick-switch standard module valve body is installed on the quick-switch standard module valve seat, and a quick-switch standard module channel connected to the flow distribution channel in the valve is opened inside, a quick-switch standard module bottom groove is opened on the side wall of the quick-switch standard module channel, a quick-switch standard module sealing gasket is installed in the quick-switch standard module bottom groove, a quick-switch standard module valve core is installed on the side wall of the quick-switch standard module channel at a position opposite to the quick-switch standard module bottom groove, and the wear-resistant cylinder is connected to the quick-switch standard module valve core through a connecting rod mechanism.

[0011] Furthermore, the flow control module includes a high-precision non-moving precision flow module cone, a high-precision non-moving precision flow module calibration section and a high-precision non-moving precision flow module water hammer removal section, which are connected to the flow channel in the valve and arranged in sequence according to the flow direction; the high-precision non-moving precision flow module calibration section is used to control the flow opening.

[0012] Furthermore, the high-precision non-motion type precision flow module calibration sections with different flow openings are respectively arranged on the plurality of flow distribution channels in the valve, and the flow opening combination value of the high-precision non-motion type precision flow module calibration sections on the plurality of flow distribution channels in the valve is between 0% and 100%.

[0013] Furthermore, there are four flow-dividing channels in the valve, which are divided into a first flow-dividing channel in the valve, a second flow-dividing channel in the valve, a third flow-dividing channel in the valve and a fourth flow-dividing channel in the valve;

[0014] The flow control module installed on the flow channel in the first valve has a flow opening of 10%, the flow control module installed on the flow channel in the second valve has a flow opening of 20%, the flow control module installed on the flow channel in the third valve has a flow opening of 20%, and the flow control module installed on the flow channel in the fourth valve has a flow opening of 50%;

[0015] Alternatively, the flow opening of the flow control module installed on the flow channel in the first valve is 10%, the flow opening of the flow control module installed on the flow channel in the second valve is 20%, the flow opening of the flow control module installed on the flow channel in the third valve is 40%, and the flow opening of the flow control module installed on the flow channel in the fourth valve is 80%.

[0016] Furthermore, there are 8 flow-dividing channels in the valve, which are divided into a first flow-dividing channel in the valve, a second flow-dividing channel in the valve, a third flow-dividing channel in the valve, a fourth flow-dividing channel in the valve, a fifth flow-dividing channel in the valve, a sixth flow-dividing channel in the valve, a seventh flow-dividing channel in the valve and an eighth flow-dividing channel in the valve;

[0017] The flow opening of the flow control module installed on the flow channel in the first valve is 10%, the flow opening of the flow control module installed on the flow channel in the second valve is 20%, the flow opening of the flow control module installed on the flow channel in the third valve is 20%, and the flow opening of the flow control module installed on the flow channel in the fourth valve is 50%; the flow opening of the flow control module installed on the flow channel in the fifth valve is 1%, the flow opening of the flow control module installed on the flow channel in the sixth valve is 2%, the flow opening of the flow control module installed on the flow channel in the seventh valve is 2%, and the flow opening of the flow control module installed on the flow channel in the eighth valve is 5%;

[0018] Alternatively, the flow opening of the flow control module installed on the sub-flow channel in the first valve is 10%, the flow opening of the flow control module installed on the sub-flow channel in the second valve is 20%, the flow opening of the flow control module installed on the sub-flow channel in the third valve is 20%, and the flow opening of the flow control module installed on the sub-flow channel in the fourth valve is 50%; the flow opening of the flow control module installed on the sub-flow channel in the fifth valve is 1%, the flow opening of the flow control module installed on the sub-flow channel in the sixth valve is 2%, the flow opening of the flow control module installed on the sub-flow channel in the seventh valve is 4%, and the flow opening of the flow control module installed on the sub-flow channel in the eighth valve is 8%.

[0019] Furthermore, there are 8 flow-dividing channels in the valve, which are divided into a first flow-dividing channel in the valve, a second flow-dividing channel in the valve, a third flow-dividing channel in the valve, a fourth flow-dividing channel in the valve, a fifth flow-dividing channel in the valve, a sixth flow-dividing channel in the valve, a seventh flow-dividing channel in the valve and an eighth flow-dividing channel in the valve;

[0020] The flow opening of the flow control module installed on the flow channel in the first valve is 10%, the flow opening of the flow control module installed on the flow channel in the second valve is 20%, the flow opening of the flow control module installed on the flow channel in the third valve is 40%, and the flow opening of the flow control module installed on the flow channel in the fourth valve is 80%; the flow opening of the flow control module installed on the flow channel in the fifth valve is 1%, the flow opening of the flow control module installed on the flow channel in the sixth valve is 2%, the flow opening of the flow control module installed on the flow channel in the seventh valve is 2%, and the flow opening of the flow control module installed on the flow channel in the eighth valve is 5%;

[0021] Alternatively, the flow opening of the flow control module installed on the sub-flow channel in the first valve is 10%, the flow opening of the flow control module installed on the sub-flow channel in the second valve is 20%, the flow opening of the flow control module installed on the sub-flow channel in the third valve is 40%, and the flow opening of the flow control module installed on the sub-flow channel in the fourth valve is 80%; the flow opening of the flow control module installed on the sub-flow channel in the fifth valve is 1%, the flow opening of the flow control module installed on the sub-flow channel in the sixth valve is 2%, the flow opening of the flow control module installed on the sub-flow channel in the seventh valve is 4%, and the flow opening of the flow control module installed on the sub-flow channel in the eighth valve is 8%.

[0022] Furthermore, it also includes a regulating valve housing, and a plurality of the in-valve flow distribution channels are arranged inside the regulating valve housing.

[0023] Furthermore, the regulating valve inlet is installed with a regulating valve inlet flange, and the regulating valve outlet is installed with a valve outlet interface flange.

[0024] Furthermore, a regulating valve safety flow upper limit control module for controlling the flow upper limit is installed at the regulating valve outlet.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1) The long-life ultra-fast high-precision regulating valve with multiple variable separation designs provided by the present invention comprises a valve internal flow channel, a regulating valve inlet, a regulating valve outlet, a fast switching standard module and a flow control module; the original flow channel is decomposed into multiple valve internal flow channels with different flow openings, and different flow opening adjustments can be achieved through the mutual combination of opening and closing between the valve internal flow channels with different flow openings.

[0027] 2) The long-life ultra-fast high-precision regulating valve with multiple variable separation design provided by the present invention can control the accuracy of ±5% for four flow distribution channels in the valve, and can control the accuracy of ±0.5% for eight flow distribution channels in the valve.

[0028] 3) The long-life, ultra-fast, high-precision regulating valve with multiple variable separation design provided by the present invention has only wear-resistant cylinders, valve cores, etc. as main moving parts, and has a service life of more than one million times, which is both safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0030] Figure 1 It is a schematic diagram of the principle of the regulating valve of the present invention that controls the flow percentage accuracy within ±5%.

[0031] Figure 2 The schematic diagram of the principle of the regulating valve of the present invention is to control the flow percentage accuracy within ±0.5%.

[0032] Figure 3 The schematic diagram of the structure of the regulating valve of the present invention is to control the flow percentage accuracy within ±5%.

[0033] Figure 4 This is an enlarged schematic diagram of the structure of the fast switch standard module of the present invention.

[0034] Figure 5 It is a schematic diagram of the structure enlargement of the flow control module of the present invention.

[0035] Figure 6 The schematic diagram of the structure of the regulating valve of the present invention is to control the flow percentage accuracy within ±0.5%.

[0036] Figure 7 The schematic diagram of the structure of the regulating valve of the present invention is that the flow percentage accuracy is controlled within ±0.005%.

[0037] Figure 8 It is a structural schematic diagram of the safety flow upper limit module of the regulating valve of the present invention.

[0038] Among them: 1- regulating valve housing; 2- flow distribution channel in the first valve; 3- regulating valve inlet flange; 4- regulating valve inlet; 5- flow distribution channel in the second valve; 6- flow distribution channel in the third valve; 7- flow distribution channel in the fourth valve; 12- valve outlet interface flange; 13- regulating valve outlet; 14- wear-resistant cylinder; 15- connecting rod mechanism; 16- fast switch standard module valve seat; 17- fast switch standard module valve body; 18- fast switch standard module valve core; 19- fast switch standard module channel; 20- fast switch standard module sealing gasket; 21- fast switch standard module bottom groove; 22- high-precision non-motion type precision flow module cone; 23- high-precision non-motion type precision flow module calibration section; 24- high-precision non-motion type precision flow module water hammer removal section; 25- percent regulating valve; 26- thousandth regulating valve; 27- ten thousandth regulating valve; 28-100,000-point regulating valve; 100-fast switching standard module; 200-flow control module; 300-regulating valve safety flow upper limit control module; 400-fast switching valve; 500-high-precision non-motion precision flow controller. DETAILED DESCRIPTION

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0040] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present application belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit exemplary embodiments according to the present invention.

[0041] like Figure 3 As shown, a long-life ultra-fast high-precision regulating valve with multiple variable separation design includes a valve internal flow channel, a regulating valve inlet 4, a regulating valve outlet 13, a fast switch standard module 100 and a flow control module 200; the inlets of multiple valve internal flow channels are connected to the regulating valve inlet 4, and the outlets are connected to the regulating valve outlet 13, and a fast switch standard module 100 and a flow control module 200 are respectively arranged on each valve internal flow channel; the fast switch standard module 100 is used to control the opening and closing of the corresponding valve internal flow channel, and the flow control module 200 is used to control the flow opening of the corresponding valve internal flow channel. The fast switch standard modules 100 on the multiple valve internal flow channels form a fast switch valve 400, and the flow control modules 200 on the multiple valve internal flow channels form a high-precision non-motion precision flow controller 500, and the number of valve internal flow channels is N, and N is an integer ≥2.

[0042] like Figure 4 As shown, a specific embodiment of the present invention is applied, the fast switching standard module 100 includes a wear-resistant cylinder 14, a fast switching standard module valve seat 16, and a fast switching standard module valve body 17; the fast switching standard module valve body 17 is installed on the fast switching standard module valve seat 16, and a fast switching standard module channel 19 connected to the flow distribution channel in the valve is opened inside, a fast switching standard module bottom groove 21 is opened on the side wall of the fast switching standard module channel 19, a fast switching standard module sealing gasket 20 is installed in the fast switching standard module bottom groove 21, and a fast switching standard module valve core 18 is installed on the side wall of the fast switching standard module channel 19 at a position directly opposite to the fast switching standard module bottom groove 21, the wear-resistant cylinder 14 is connected to the fast switching standard module valve core 18 through a connecting rod mechanism 15, and when working, the wear-resistant cylinder 14 directly pushes the fast switching standard module valve core 18 to move through the connecting rod mechanism 15, and the fast switching standard module valve core 18 enters and exits the fast switching standard module bottom groove 21, thereby realizing opening and closing.

[0043] like Figure 5 As shown, in a specific embodiment of the present invention, the flow control module 200 includes a high-precision non-motion type precision flow module cone 22, a high-precision non-motion type precision flow module calibration section 23 and a high-precision non-motion type precision flow module water hammer removal section 24, which are connected to the flow channel in the valve and arranged in sequence according to the flow direction; the high-precision non-motion type precision flow module calibration section 23 is used to control the flow opening. Specifically, the diameter of the high-precision non-motion type precision flow module cone 22 changes from large to small, the diameter of the high-precision non-motion type precision flow module calibration section 23 remains unchanged and represents the flow opening, and the diameter of the high-precision non-motion type precision flow module water hammer removal section 24 changes from small to large. The flow control module 200 has no action, and the theoretical time for adjusting the flow is zero. It is arranged in the flow channel in the valve and cooperates with the fast switch standard module 100 to control the flow.

[0044] In a specific embodiment of the present invention, high-precision non-moving precision flow module calibration sections 23 with different flow openings are respectively provided on multiple flow channels in the valves, and the flow opening combination values ​​of the high-precision non-moving precision flow module calibration sections 23 on the multiple flow channels in the valves are between 0% and 100%.

[0045] like Figure 6 As shown, as a specific example of the above embodiment, there are four flow distribution channels in the valve, and the fast switching standard modules 100 and the flow control module 200 on the four flow distribution channels in the valve together constitute a percentage regulating valve 25. The flow of the fast switching standard module is mechanically divided into multiple gears, with the gear positions being 0 to N, 0≤N≤100, and the accuracy can be controlled within ±5%.

[0046] More specifically, the four in-valve flow-dividing channels are divided into a first in-valve flow-dividing channel 2, a second in-valve flow-dividing channel 5, a third in-valve flow-dividing channel 6 and a fourth in-valve flow-dividing channel 7;

[0047] The flow control module 200 installed on the flow channel 2 in the first valve has a flow opening of 10%, the flow control module 200 installed on the flow channel 5 in the second valve has a flow opening of 20%, the flow control module 200 installed on the flow channel 6 in the third valve has a flow opening of 20%, and the flow control module 200 installed on the flow channel 7 in the fourth valve has a flow opening of 50%;

[0048] Alternatively, the flow control module 200 installed on the flow channel 2 in the first valve has a flow opening of 10%, the flow control module 200 installed on the flow channel 5 in the second valve has a flow opening of 20%, the flow control module 200 installed on the flow channel 6 in the third valve has a flow opening of 40%, and the flow control module 200 installed on the flow channel 7 in the fourth valve has a flow opening of 80%.

[0049] As a specific example of the above embodiment, there are 8 flow distribution channels in the valve, and the fast switching standard modules 100 and the flow control module 200 on the 8 flow distribution channels in the valve together constitute a thousandth regulating valve 26. The flow of the fast switching standard module is mechanically divided into multiple gears, with the gear positions being 0 to N, 0≤N≤100, and the accuracy can be controlled within ±0.5%.

[0050] More specifically, the eight valve internal flow channels are divided into a first valve internal flow channel 2, a second valve internal flow channel 5, a third valve internal flow channel 6, a fourth valve internal flow channel 7, a fifth valve internal flow channel, a sixth valve internal flow channel, a seventh valve internal flow channel and an eighth valve internal flow channel;

[0051] The flow control module 200 installed on the flow channel 2 in the first valve has a flow opening of 10%, the flow control module 200 installed on the flow channel 5 in the second valve has a flow opening of 20%, the flow control module 200 installed on the flow channel 6 in the third valve has a flow opening of 20%, and the flow control module 200 installed on the flow channel 7 in the fourth valve has a flow opening of 50%; the flow control module 200 installed on the flow channel in the fifth valve has a flow opening of 1%, the flow control module 200 installed on the flow channel in the sixth valve has a flow opening of 2%, the flow control module 200 installed on the flow channel in the seventh valve has a flow opening of 2%, and the flow control module 200 installed on the flow channel in the eighth valve has a flow opening of 5%;

[0052] Alternatively, the flow control module 200 installed on the flow channel 2 in the first valve has a flow opening of 10%, the flow control module 200 installed on the flow channel 5 in the second valve has a flow opening of 20%, the flow control module 200 installed on the flow channel 6 in the third valve has a flow opening of 20%, and the flow control module 200 installed on the flow channel 7 in the fourth valve has a flow opening of 50%; the flow control module 200 installed on the flow channel in the fifth valve has a flow opening of 1%, the flow control module 200 installed on the flow channel in the sixth valve has a flow opening of 2%, the flow control module 200 installed on the flow channel in the seventh valve has a flow opening of 4%, and the flow control module 200 installed on the flow channel in the eighth valve has a flow opening of 8%;

[0053] Alternatively, the flow control module 200 installed on the flow channel 2 in the first valve has a flow opening of 10%, the flow control module 200 installed on the flow channel 5 in the second valve has a flow opening of 20%, the flow control module 200 installed on the flow channel 6 in the third valve has a flow opening of 40%, and the flow control module 200 installed on the flow channel 7 in the fourth valve has a flow opening of 80%; the flow control module 200 installed on the flow channel in the fifth valve has a flow opening of 1%, the flow control module 200 installed on the flow channel in the sixth valve has a flow opening of 2%, the flow control module 200 installed on the flow channel in the seventh valve has a flow opening of 2%, and the flow control module 200 installed on the flow channel in the eighth valve has a flow opening of 5%;

[0054] Alternatively, the flow opening of the flow control module 200 installed on the flow channel 2 in the first valve is 10%, the flow opening of the flow control module 200 installed on the flow channel 5 in the second valve is 20%, the flow opening of the flow control module 200 installed on the flow channel 6 in the third valve is 40%, and the flow opening of the flow control module 200 installed on the flow channel 7 in the fourth valve is 80%; the flow opening of the flow control module 200 installed on the flow channel in the fifth valve is 1%, the flow opening of the flow control module 200 installed on the flow channel in the sixth valve is 2%, the flow opening of the flow control module 200 installed on the flow channel in the seventh valve is 4%, and the flow opening of the flow control module 200 installed on the flow channel in the eighth valve is 8%.

[0055] Similarly, the number of flow distribution channels in the valve can be set to 9, 10, 11, 12, etc., and different flow distribution channels in the valve can be set to flow openings of different orders of magnitude, thereby achieving flow control of different precision levels.

[0056] like Figure 7As shown, when the number of flow channels in the valve is set to 12, it is composed of a percentage regulating valve 25, a thousandth regulating valve 26, a ten-thousandth regulating valve 27 and a hundred-thousandth regulating valve 28, and a control accuracy of ±0.005% can be achieved. For example, the flow openings on the four flow channels in the valve of the ten-thousandth regulating valve 27 are 0.1%, 0.2%, 0.2%, 0.5%, or 0.1%, 0.2%, 0.4%, 0.8%. The flow openings on the four flow channels in the valve of the hundred-thousandth regulating valve 28 are 0.01%, 0.02%, 0.02%, 0.05%, or 0.01%, 0.02%, 0.04%, 0.08%. Each additional set of regulating valves increases the accuracy by one order of magnitude, and a high-precision non-motion precision flow controller is formed through iteration. The flow controller is easy to process, has low manufacturing cost, long service life, high accuracy, and stable reproducibility.

[0057] In some other embodiments of the present invention, a regulating valve housing 1 is further included, and a plurality of in-valve flow distribution channels are arranged inside the regulating valve housing 1. The regulating valve inlet 4 is installed with a regulating valve inlet flange 3, and the regulating valve outlet 13 is installed with a valve outlet interface flange 12. Both the regulating valve inlet flange 3 and the valve outlet interface flange 12 are installed on the regulating valve housing 1.

[0058] like Figure 8 As shown, in a preferred embodiment of the present invention, a regulating valve safety flow upper limit control module 300 for controlling the flow upper limit is installed at the regulating valve outlet 13 .

[0059] like Figure 1 As shown, in a specific embodiment of the present invention, the percentage regulating valve is obtained by connecting multiple flow channels in the valve in parallel to form a percentage regulating valve, which can control the flow percentage accuracy within ±5%. There are two ways:

[0060] One is that the standard fast switch module of the flow channel in valve a is equipped with a flow control module with a flow opening of 10%, the standard fast switch module of the flow channel in valve b is equipped with a flow control module with a flow opening of 20%, the standard fast switch module of the flow channel in valve c is equipped with a flow control module with a flow opening of 20%, and the standard fast switch module of the flow channel in valve d is equipped with a flow control module with a flow opening of 50%.

[0061] Furthermore, the fast switching standard module of the flow channel in valve a can be opened to complete 10% of the flow opening, the fast switching standard module of the flow channel in valve b (or the fast switching standard module of the flow channel in valve c) can be opened to complete 20% of the flow opening, the fast switching standard module of the flow channel in valve a and the fast switching standard module of the flow channel in valve b (or the fast switching standard module of the flow channel in valve c) can be opened in combination to complete 30% of the flow opening, the fast switching standard module of the flow channel in valve b and the fast switching standard module of the flow channel in valve c can be opened to complete 40% of the flow opening, the fast switching standard module of the flow channel in valve a, the fast switching standard module of the flow channel in valve b and the fast switching standard module of the flow channel in valve c can be opened in combination to complete 50% of the flow opening, and the fast switching standard module of the flow channel in valve a The combination of the standard module and the fast-switch standard module of the flow channel in the d valve can complete 60% of the flow opening, the combination of the fast-switch standard module of the flow channel in the b valve (or the fast-switch standard module of the flow channel in the c valve) and the fast-switch standard module of the flow channel in the d valve can complete 70% of the flow opening, the fast-switch standard module of the flow channel in the a valve, the fast-switch standard module of the flow channel in the b valve (or the fast-switch standard module of the flow channel in the c valve) and the fast-switch standard module of the flow channel in the d valve can complete 80% of the flow opening, the combination of the fast-switch standard module of the flow channel in the b valve, the fast-switch standard module of the flow channel in the c valve and the fast-switch standard module of the flow channel in the d valve can complete 90% of the flow opening, and all four fast-switch standard modules can complete 100% of the flow opening.

[0062] Second, the standard fast-switch module of the flow channel in valve a is equipped with a flow control module with a flow opening of 10%, the standard fast-switch module of the flow channel in valve b is equipped with a flow control module with a flow opening of 20%, the standard fast-switch module of the flow channel in valve c is equipped with a flow control module with a flow opening of 40%, and the standard fast-switch module of the flow channel in valve d is equipped with a flow control module with a flow opening of 80%.

[0063] Furthermore, the fast switching standard module of the flow channel in valve a can be opened to complete a 10% flow opening, the fast switching standard module of the flow channel in valve b can be opened to complete a 20% flow opening, the fast switching standard module of the flow channel in valve a and the fast switching standard module of the flow channel in valve b can be opened in combination to complete a 30% flow opening, the fast switching standard module of the flow channel in valve c can be opened to complete a 40% flow opening, the fast switching standard module of the flow channel in valve a and the fast switching standard module of the flow channel in valve c can be opened in combination to complete a 50% flow opening, the fast switching standard module of the flow channel in valve b and the fast switching standard module of the flow channel in valve c can be opened in combination to complete a The combination of the fast switching standard modules can complete a flow opening of 60%, the combination of the fast switching standard module of the flow channel in valve a, the fast switching standard module of the flow channel in valve b and the fast switching standard module of the flow channel in valve c can complete a flow opening of 70%, the combination of the fast switching standard module of the flow channel in valve d can complete an 80% flow opening, the combination of the fast switching standard module of the flow channel in valve a and the fast switching standard module of the flow channel in valve d can complete a flow opening of 90%, and the combination of the fast switching standard module of the flow channel in valve b and the fast switching standard module of the flow channel in valve d can complete a flow opening of 100%.

[0064] Both combinations can control the flow percentage accuracy within ±5%.

[0065] Furthermore, in principle Figure 1 , structure such as Figure 3 On the basis of the percentage control valve, a thousandth control valve is added. The thousandth control valve is integrated by 4 fast switch standard modules and 4 valve flow control modules, forming 8 fast switch standard modules in parallel. The principle is as follows Figure 2 , the structure is as follows Figure 6 As shown. The combination of the additional 4 in-valve flow control modules is Figure 1 The percentage control valve is similar:

[0066] First, the standard fast-switch module of the flow channel in the e valve is equipped with a flow control module with a flow opening of 1%, the standard fast-switch module of the flow channel in the f valve is equipped with a flow control module with a flow opening of 2%, the standard fast-switch module of the flow channel in the g valve is equipped with a flow control module with a flow opening of 2%, and the standard fast-switch module of the flow channel in the h valve is equipped with a flow control module with a flow opening of 5%.

[0067] Second, the standard fast-switch module of the flow channel in the e valve is equipped with a flow control module with a flow opening of 1%, the standard fast-switch module of the flow channel in the f valve is equipped with a flow control module with a flow opening of 2%, the standard fast-switch module of the flow channel in the g valve is equipped with a flow control module with a flow opening of 4%, and the standard fast-switch module of the flow channel in the h valve is equipped with a flow control module with a flow opening of 8%.

[0068] Similarly, the two additional series-connected fast-switch standard modules and flow control modules can be combined to achieve a flow opening of 1% to 10%, and connected in parallel with the first four groups of fast-switch standard modules to obtain a thousandth regulating valve. The thousandth regulating valve can enable the regulating valve to complete any opening of 0% to 100%, and the accuracy can be controlled within ±0.5% (5 thousandths).

[0069] Furthermore, on the basis of the thousandth control valve, a ten-thousandth control valve is added. Similar to the percentage control valve and the thousandth control valve, the ten-thousandth control valve has four new flow channels in the valve. The newly added flow channels in the valve are set to flow openings of 0.1%, 0.2%, 0.2%, 0.5%, or 0.1%, 0.2%, 0.4%, 0.8%. It can complete a flow opening of 0.1%~1%, and iterate the integration of the control valve ten-thousandth control valve. The control valve ten-thousandth control valve can enable the control valve to complete any opening of 0%~100%, and the accuracy can be controlled within ±0.05% (5 ten-thousandths).

[0070] Iterate one more level, such as Figure 7 As shown in the figure, by adding four more flow distribution channels in the valve, the control valve can achieve any opening degree of 0%~100% with the precision of ±0.005% (5 parts per hundred thousand). The flow opening degrees on the four flow distribution channels in the control valve 28 are 0.01%, 0.02%, 0.02%, 0.05%, or 0.01%, 0.02%, 0.04%, 0.08% respectively.

[0071] Because of sufficient accuracy, the safety flow upper limit control module is controlled by regulating the valve, such as Figure 8 For example, if the upper limit of flow is controlled at 50%, then the 1-inch control valve becomes a half-inch control valve. If the upper limit of flow is controlled at 25%, then the 1-inch control valve becomes a quarter-inch control valve. And so on. A series of control valves can be manufactured without changing the strength, life, and high pressure resistance of the valve.

[0072] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A long-life, ultra-fast, high-precision control valve with multiple variable separation design, characterized in that: It comprises a flow distribution channel in the valve, a regulating valve inlet (4), a regulating valve outlet (13), a fast switch standard module (100) and a flow control module (200); The inlets of the plurality of flow-dividing channels in the valve are all connected to the inlet (4) of the regulating valve, and the outlets are all connected to the outlet (13) of the regulating valve. A fast switch standard module (100) and a flow control module (200) are respectively provided on each of the flow-dividing channels in the valve; the fast switch standard module (100) is used to control the opening and closing of the corresponding flow-dividing channel in the valve, and the flow control module (200) is used to control the flow opening of the corresponding flow-dividing channel in the valve; The fast switching standard module (100) comprises a wear-resistant cylinder (14), a fast switching standard module valve seat (16), and a fast switching standard module valve body (17); The quick switch standard module valve body (17) is mounted on the quick switch standard module valve seat (16), and is provided with a quick switch standard module channel (19) in the interior thereof, which is connected to the flow distribution channel in the valve; a quick switch standard module bottom groove (21) is provided on the side wall of the quick switch standard module channel (19); a quick switch standard module sealing gasket (20) is installed in the quick switch standard module bottom groove (21); a quick switch standard module valve core (18) is installed on the side wall of the quick switch standard module channel (19) at a position directly opposite to the quick switch standard module bottom groove (21); and the wear-resistant cylinder (14) is connected to the quick switch standard module valve core (18) via a connecting rod mechanism (15); The flow control module (200) comprises a high-precision non-moving precision flow module cone (22), a high-precision non-moving precision flow module calibration section (23) and a high-precision non-moving precision flow module water hammer removal section (24) which are connected to the flow branch channel in the valve and are arranged in sequence according to the flow direction; the high-precision non-moving precision flow module calibration section (23) is used to control the flow opening.

2. The long-life ultra-fast high-precision control valve with multiple variable separation design according to claim 1 is characterized in that: The high-precision non-motion type precise flow module calibration sections (23) with different flow openings are respectively arranged on the plurality of flow flow distribution channels in the valve, and the flow opening combination value of the high-precision non-motion type precise flow module calibration sections (23) on the plurality of flow flow distribution channels in the valve is between 0% and 100%.

3. The long-life ultra-fast high-precision control valve with multiple variable separation design according to claim 2 is characterized in that: There are four flow-dividing channels in the valve, which are divided into a first flow-dividing channel (2), a second flow-dividing channel (5), a third flow-dividing channel (6) and a fourth flow-dividing channel (7); The flow control module (200) installed on the flow branch channel (2) in the first valve has a flow opening of 10%, the flow control module (200) installed on the flow branch channel (5) in the second valve has a flow opening of 20%, the flow control module (200) installed on the flow branch channel (6) in the third valve has a flow opening of 20%, and the flow control module (200) installed on the flow branch channel (7) in the fourth valve has a flow opening of 50%; Alternatively, the flow control module (200) installed on the flow branch channel (2) in the first valve has a flow opening of 10%, the flow control module (200) installed on the flow branch channel (5) in the second valve has a flow opening of 20%, the flow control module (200) installed on the flow branch channel (6) in the third valve has a flow opening of 40%, and the flow control module (200) installed on the flow branch channel (7) in the fourth valve has a flow opening of 80%.

4. The long-life ultra-fast high-precision control valve with multiple variable separation design according to claim 2 is characterized in that: There are 8 flow-dividing channels in the valve, which are divided into a first flow-dividing channel (2), a second flow-dividing channel (5), a third flow-dividing channel (6), a fourth flow-dividing channel (7), a fifth flow-dividing channel, a sixth flow-dividing channel, a seventh flow-dividing channel and an eighth flow-dividing channel; The flow control module (200) installed on the flow channel (2) in the first valve has a flow opening of 10%, the flow control module (200) installed on the flow channel (5) in the second valve has a flow opening of 20%, the flow control module (200) installed on the flow channel (6) in the third valve has a flow opening of 20%, and the flow control module (200) installed on the flow channel (7) in the fourth valve has a flow opening of 50%; the flow control module (200) installed on the flow channel in the fifth valve has a flow opening of 1%, the flow control module (200) installed on the flow channel in the sixth valve has a flow opening of 2%, the flow control module (200) installed on the flow channel in the seventh valve has a flow opening of 2%, and the flow control module (200) installed on the flow channel in the eighth valve has a flow opening of 5%; Alternatively, the flow control module (200) installed on the flow channel (2) in the first valve has a flow opening of 10%, the flow control module (200) installed on the flow channel (5) in the second valve has a flow opening of 20%, the flow control module (200) installed on the flow channel (6) in the third valve has a flow opening of 20%, and the flow control module (200) installed on the flow channel (7) in the fourth valve has a flow opening of 50%; the flow control module (200) installed on the flow channel in the fifth valve has a flow opening of 1%, the flow control module (200) installed on the flow channel in the sixth valve has a flow opening of 2%, the flow control module (200) installed on the flow channel in the seventh valve has a flow opening of 4%, and the flow control module (200) installed on the flow channel in the eighth valve has a flow opening of 8%.

5. The long-life ultra-fast high-precision control valve with multiple variable separation design according to claim 2 is characterized in that: There are 8 flow-dividing channels in the valve, which are divided into a first flow-dividing channel (2), a second flow-dividing channel (5), a third flow-dividing channel (6), a fourth flow-dividing channel (7), a fifth flow-dividing channel, a sixth flow-dividing channel, a seventh flow-dividing channel and an eighth flow-dividing channel; The flow control module (200) installed on the flow channel (2) in the first valve has a flow opening of 10%, the flow control module (200) installed on the flow channel (5) in the second valve has a flow opening of 20%, the flow control module (200) installed on the flow channel (6) in the third valve has a flow opening of 40%, and the flow control module (200) installed on the flow channel (7) in the fourth valve has a flow opening of 80%; the flow control module (200) installed on the flow channel in the fifth valve has a flow opening of 1%, the flow control module (200) installed on the flow channel in the sixth valve has a flow opening of 2%, the flow control module (200) installed on the flow channel in the seventh valve has a flow opening of 2%, and the flow control module (200) installed on the flow channel in the eighth valve has a flow opening of 5%; Alternatively, the flow control module (200) installed on the flow channel (2) in the first valve has a flow opening of 10%, the flow control module (200) installed on the flow channel (5) in the second valve has a flow opening of 20%, the flow control module (200) installed on the flow channel (6) in the third valve has a flow opening of 40%, and the flow control module (200) installed on the flow channel (7) in the fourth valve has a flow opening of 80%; the flow control module (200) installed on the flow channel in the fifth valve has a flow opening of 1%, the flow control module (200) installed on the flow channel in the sixth valve has a flow opening of 2%, the flow control module (200) installed on the flow channel in the seventh valve has a flow opening of 4%, and the flow control module (200) installed on the flow channel in the eighth valve has a flow opening of 8%.

6. The long-life ultra-fast high-precision control valve with multiple variable separation design according to claim 1 is characterized in that: It also comprises a regulating valve housing (1), wherein a plurality of in-valve flow distribution channels are arranged inside the regulating valve housing (1).

7. The long-life ultra-fast high-precision control valve with multiple variable separation design according to claim 1 is characterized in that: The regulating valve inlet (4) is installed with a regulating valve inlet flange (3), and the regulating valve outlet (13) is installed with a valve outlet interface flange (12).

8. The long-life ultra-fast high-precision control valve with multiple variable separation design according to claim 1, characterized in that: A regulating valve safety flow upper limit control module (300) for controlling the flow upper limit is installed at the regulating valve outlet (13).

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