Shell structure, actuating mechanism for high-pressure gas valve and high-pressure gas valve

Abstract

The utility model relates to a shell structure, an executing mechanism for a high-pressure gas valve and the high-pressure gas valve. The shell structure is used for a high-pressure gas valve, the shell structure has the length extending along the axis and comprises a first section, a second section and a third section, and the second section is made of non-magnetic-conductive materials and is arranged between the first section and the third section. The first section and the third section are both made of magnetic conductive materials and are connected with the second section through welding, and the first section, the second section and the third section are connected to define an accommodating space of the shell structure. By the adoption of the high-pressure gas valve, the working performance of the high-pressure gas valve can be remarkably improved, especially the pressure bearing capacity to high-pressure gas, and the gas flow can be more accurately adjusted.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of valves, and more particularly, to a housing structure, an actuator for a high-pressure gas valve, and a high-pressure gas valve. BACKGROUND

[0002] Various types of valve devices are widely used in many fields, for example, high-pressure gas valves are used to control the flow of high-pressure gas in industrial manufacturing, commercial sites, civil facilities, electromechanical equipment, and many other environments, such as high-pressure gas proportional valves used to accurately regulate gas flow.

[0003] In Figure 1 A currently commonly used high-pressure gas valve is shown in the figure, which includes an actuator 100 and a gas flow regulating portion 200, the above two portions are distinguished by using a dashed box in the figure. As shown in Figure 1 The actuator 100 is provided with a housing 1, a coil 2, a coil holder 3, a guide tube 4, a moving iron core 5, a driving rod 6, and a stationary iron core 7, and the gas flow regulating portion 200 is provided with a valve core 8 and a spring 9. When the coil 2 is energized, a magnetic field is generated, and then the magnetic force provided by the magnetic field is used to urge the driving rod 6 to push the valve core 8 in the gas flow regulating portion 200, thereby regulating the gas flow. Generally, Figure 1 The high-pressure gas valve shown can withstand a gas pressure of less than 20 bar, the displacement distance of the driving rod 6 is about 2-5 mm, and the magnetic force generated by the magnetic field is generally relatively small, for example, when the energizing current of the coil 2 is 3A, it is about 10-15N. UTILITY MODEL CONTENTS

[0004] Therefore, the present disclosure provides a housing structure, an actuator for a high-pressure gas valve, and a high-pressure gas valve, so as to solve or at least alleviate one or more of the problems in the prior art and other aspects, or to provide an alternative technical solution for the prior art.

[0005] First, according to one aspect of the present disclosure, a housing structure is provided for an actuator of a high-pressure gas valve, the housing structure has a length extending along an axis and includes a first section, a second section, and a third section, the second section is made of a non-magnetic conductive material and is arranged between the first section and the third section, the first section and the third section are both made of a magnetic conductive material and are connected to the second section by welding, and the first section, the second section, and the third section define a containing space of the housing structure after being connected.

[0006] In the housing structure according to the present disclosure, optionally, the first section has a first opening and a connecting portion, the first opening is provided at an end of the first section, the connecting portion is provided near the first opening, and is configured to connect an end cover to close the first opening; and / or

[0007] the second section is configured in a cylindrical shape; and / or

[0008] the third section has a second opening, a stop portion and an extension portion, the second opening is provided at an end of the third section, the stop portion is provided inside the third section, and is configured to prevent a component accommodated in the accommodation space from moving relative to the third section; the extension portion is provided outside the third section, and is configured to extend in a direction perpendicular to the axis.

[0009] In the housing structure according to the present disclosure, optionally, the first section further has a first fitting portion provided on an outer surface of the first section for fitting a first seal arranged between the end cover and the first section; and / or

[0010] the third section further has a support portion provided between the second opening and the stop portion for supporting a component passing through the third section in the direction of the axis, and / or a second fitting portion provided on an outer surface of the third section for fitting a second seal.

[0011] In the housing structure according to the present disclosure, optionally, the second section is connected to the first section by friction welding or laser welding or brazing, and / or the second section is connected to the third section by friction welding or laser welding or brazing.

[0012] In the housing structure according to the present disclosure, optionally, the thickness of the housing structure ranges from 4 to 15 mm.

[0013] Secondly, according to another aspect of the present disclosure, an actuator for a high-pressure gas valve is also provided, comprising:

[0014] the housing structure as claimed in any one of the above;

[0015] a magnetic portion arranged on the housing structure, the magnetic portion providing a magnetic force after being energized; and

[0016] a drive rod at least partially arranged in an accommodation space of the housing structure, under the drive of the magnetic force, the drive rod moves along the axis and extends outwardly from the third section, so that the drive rod acts on a gas flow regulating mechanism of the high-pressure gas valve to regulate the gas flow.

[0017] In the actuator for a high-pressure gas valve according to the present disclosure, optionally, the electromagnetic portion comprises:

[0018] a coil arranged around the axis, the coil generating a magnetic field upon energization to provide the electromagnetic force;

[0019] a first magnetic-conductive core body arranged within the accommodation space of the housing structure, the first magnetic-conductive core body being adjacent to and kept stationary relative to the third section, the drive rod passing through the first magnetic-conductive core body;

[0020] a second magnetic-conductive core body movably arranged within the accommodation space of the housing structure, the second magnetic-conductive core body being adjacent to the first section and connected with the drive rod, the second magnetic-conductive core body driving the drive rod to move along the axis direction upon being driven to move by the electromagnetic force; and / or

[0021] the movement displacement range of the drive rod is not less than 20 mm.

[0022] In the actuator for a high-pressure gas valve according to the present disclosure, optionally, the electromagnetic portion comprises a coil holder sleeved on the outer surface of the second section around the axis, the coil being wound on the coil holder.

[0023] In the actuator for a high-pressure gas valve according to the present disclosure, optionally, the first magnetic-conductive core body has an accommodation portion on the side facing the second magnetic-conductive core body, the end portion of the second magnetic-conductive core body on the side facing the first magnetic-conductive core body being configured to be accommodated within the accommodation portion.

[0024] Further, according to still another aspect of the present disclosure, there is further provided a high-pressure gas valve comprising:

[0025] the actuator for a high-pressure gas valve as described in any one of the above; and

[0026] a gas flow regulating mechanism, the drive rod of the actuator acting on the gas flow regulating mechanism upon being driven to move to regulate the gas flow of the high-pressure gas valve.

[0027] The housing structure and actuator disclosed herein significantly improve the performance of the high-pressure gas valve, particularly its pressure-bearing capacity for high-pressure gases, enabling more precise regulation of gas flow. Through structural design improvements, the displacement range of the drive rod in the actuator of the high-pressure gas valve can be effectively increased, thereby facilitating longer sealing lengths. Even at high pressures such as 500 bar, very small gas flow rates can be controlled, thus promoting the safe and efficient operation of equipment equipped with this high-pressure gas valve. Furthermore, the actuator of this high-pressure gas valve can provide greater electromagnetic force and withstand larger pressure waves, which facilitates more precise gas flow regulation and expands the application range of this high-pressure gas valve. Attached Figure Description

[0028] Figure 1 This is a side cross-sectional view of an existing high-pressure gas valve.

[0029] Figure 2 This is a side cross-sectional view of an embodiment of a housing structure for a high-pressure gas valve according to the present disclosure.

[0030] Figure 3 This is a side cross-sectional schematic diagram of an embodiment of an actuator for a high-pressure gas valve according to the present disclosure, wherein an actuator is configured using... Figure 2 An example of a shell structure. Detailed Implementation

[0031] First, it should be noted that the following description, using examples, illustrates the housing structure, actuator for the high-pressure gas valve, and structural configuration, features, and advantages of the high-pressure gas valve according to this disclosure; however, all descriptions should not be construed as limiting this disclosure in any way. In this document, the technical terms "first," "second," and "third" are used only for distinguishing purposes and are not intended to indicate their order or relative importance. "High-pressure gas" refers to a gas with a pressure greater than atmospheric pressure. For the sake of simplicity in the drawings, identical or similar parts and features may be indicated in only one or more places in the same drawing.

[0032] Figure 2 The diagram illustrates a basic construction of a housing structure according to this disclosure, which can be applied to a high-pressure gas valve. Figure 3 The image further illustrates the general configuration of an embodiment of the actuator for a high-pressure gas valve, which employs... Figure 2 The following describes an embodiment of the shell structure. The present disclosure will be further explained below with reference to these embodiments.

[0033] refer to Figure 3In this embodiment, the actuator 100 of the high pressure gas valve can include a housing structure 10, an electromagnetic portion 20 and a drive rod 30. The electromagnetic portion 20 can be arranged on the housing structure 10, which will form a magnetic field and provide an electromagnetic force upon energization, and the drive rod 30 can be caused to move along the axis L of the housing structure 10 under the action of the electromagnetic force provided by the electromagnetic portion 20, so as to further actuate a gas flow regulating mechanism (not shown) in the high pressure gas valve to perform a gas flow regulating operation for the gas flowing through the high pressure gas valve, which will be described in more detail later. Figure 3 The electromagnetic path formed by the magnetic field is schematically represented by arrows in the figure. Under the action of the electromagnetic force provided by the electromagnetic portion 20, the drive rod 30 can be caused to move along the axis L of the housing structure 10, so as to further actuate a gas flow regulating mechanism (not shown) in the high pressure gas valve to perform a gas flow regulating operation for the gas flowing through the high pressure gas valve, which will be described in more detail later.

[0034] As shown in Figure 2 the housing structure 10 can be configured to have three parts, i.e. a first section 11, a second section 12 and a third section 13, which can be connected together by a welding process, such as any one or more suitable welding methods, e.g. friction welding, laser welding or brazing, etc. Figure 2 The corresponding joint positions between the joint positions between the second section 12 and the first section 11 and the third section 13 are schematically indicated by reference numerals A and B in the figure. The second section 12 can be made of any non-magnetic conductive material (e.g. non-magnetic stainless steel, etc.) as required by the specific application, and the first section 11 and the third section 13 arranged at both ends of the second section 12 can be made of the same or different magnetic conductive materials, e.g. the same type of magnetic conductive stainless steel, etc.

[0035] After the first section 11, the second section 12 and the third section 13 are connected together by a welding process such as friction welding, etc., the gas pressure bearing capacity of the housing structure 10 can be effectively improved, e.g. capable of bearing a gas pressure of 500 bar or higher. The above three sections can form a length extending along the axis L and define a receiving space 14 after being connected together, and the specific length and the size of the receiving space can be configured as required.

[0036] The first section 11 is arranged at one end of the second section 12, and a first opening 111 and a connecting portion 112 can be provided on the first section 11. The first opening 111 can be provided at the end of the first section 11, so that some components of the actuator 100 can be assembled and arranged in the receiving space 14 through the opening, and then the end cover 40 can be used to close the first opening 111. The end cover 40 can be installed in place on the housing structure 10 by mating connection between the end cover 40 and the connecting portion 112. For example, the connecting portion 112 can be provided near the first opening 111, which can be configured to have any feasible structure, e.g. threads, concave-convex structures, etc. to achieve mating connection with the corresponding structure on the end cover 40.

[0037] In addition, as an optional configuration, a first assembly portion 113 can be provided on the first section 11, for example, a groove or the like structure is arranged on the outer surface of the first section 11, so as to be used for mounting a first sealing member 50 such as an O-ring or the like. For example, the above first sealing member 50 can be optionally arranged between the end cover 40 and the first section 11, so as to play a good sealing effect, and ensure that the actuator 100 and the high-pressure gas valve have better working performance.

[0038] The second section 12 can be configured in a cylindrical shape, for example, and the third section 13 is connected to the other end of the second section 12. As an optional configuration, the thickness of the housing structure 10 composed of the first section 11, the second section 12, and the third section 13 can be set to be in the range of 4-15 mm, such as 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, and the like, which can be selected according to application requirements.

[0039] A second opening 131, a stop portion 132, and an extension portion 133 can be provided on the third section 13. Among them, the second opening 131 can be provided at the end of the third section 13, so that the end of the drive rod 30 extends out when moving to actuate the corresponding components on the gas flow regulating mechanism. The stop portion 132 is arranged inside the third section 13, which can be configured as a step or the like structure, so as to keep the components (for example, the first magnetic core 23 to be introduced later) located in the accommodation space 14 in place and avoid displacement. The extension portion 133 is arranged outside the third section 13, which can be configured as a flange or the like structure, and the extension portion 133 extends along a direction perpendicular to the axis L of the housing structure 10, which can be used to mount some components in the electromagnetic portion 20.

[0040] In addition, as an optional configuration, a support portion 134 can be provided on the third section 13, for example, the support portion 134 is arranged between the second opening 131 and the stop portion 132, which is used to support the components such as the drive rod 30, and can additionally play a role such as guiding, limiting, and the like. In addition, as an optional configuration, a second assembly portion 135 can be provided on the third section 13, for example, a groove or the like structure is arranged on the outer surface of the third section 13, so as to be used for mounting a second sealing member 60 such as an O-ring or the like, thereby playing a good sealing effect, and ensuring that the actuator 100 and the high-pressure gas valve have better working performance.

[0041] As an example, in one or more embodiments, the electromagnetic part 20 can be configured to include the coil 21, the coil holder 22, the first magnetic conductive core 23 and the second magnetic conductive core 24. As mentioned before, the extension 133 of the third section 13 can be used to mount the coil holder 22, on which the coil 21 is wound and is fitted around the axis L of the housing structure 10 on the outer surface of the second section 12. In addition, the magnetic conductive structure 25 can be optionally arranged on the outer surface of the coil holder 22 and the coil 21, so as to better guide and facilitate the formation of the desired electromagnetic path. Figure 3 The corresponding magnetic field can be generated and the electromagnetic force can be provided after the coil 21 is powered.

[0042] The first magnetic conductive core 23 and the second magnetic conductive core 24 can be made of, for example, a core, laminated silicon steel sheets, etc., which are arranged in the accommodation space 14 of the housing structure 10 and are respectively the stationary part and the moving part. As an example, for example Figure 3 As shown, the first magnetic conductive core 23 can be mounted and arranged, for example, against the stop 132 on the third section 13, so as to be kept in a stationary state relative to the third section 13; the second magnetic conductive core 24 can be arranged near the first section 11, the second magnetic conductive core 24 is connected with the drive rod 30, and after being driven by the electromagnetic force, the second magnetic conductive core 24 can move along the axis L in the accommodation space 14, thereby driving the drive rod 30 to move. After the drive rod 30 starts to move, its end portion can extend outwardly from the second opening 131 of the third section 13, thereby acting on the corresponding component (such as a valve core, etc.) of the gas flow regulating mechanism in the high-pressure gas valve, so as to regulate the gas flow of the high-pressure gas valve.

[0043] Continuing to refer to Figure 3 In one or more embodiments, the accommodation portion 231 can be optionally arranged on the first magnetic conductive core 23, which is located on the side facing the second magnetic conductive core 24 and is configured to correspondingly accommodate the end portion 241 of the second magnetic conductive core 24, and the length of the accommodation can be set as needed. In this way, the second magnetic conductive core 24 and the drive rod 30 can have a greater range of motion displacement, for example, the range of motion displacement of the drive rod 30 can be not less than 20 mm, such as 20-30 mm, etc., which is much larger than, for example Figure 1 the existing products shown in the prior art generally only have a stroke of 2-5 mm, which helps to achieve a relatively longer sealing length, so that even in a high-pressure environment such as 500 bar, a very small gas flow can be regulated and achieved, which is particularly advantageous for the efficient and safe operation of some electromechanical equipment in certain situations, such as the idling operation of an engine configured with the high-pressure gas valve.

[0044] Based on the optimized structural design of the housing structure 10 and the electromagnetic part 20, the actuator 100 of the high-pressure gas valve can output a larger electromagnetic force compared with the existing products such as Figure 1 , for example, about 40 N or even larger when the coil current is 3 A, and the actuator 100 can withstand a larger pressure wave in the overall structure, thereby facilitating more accurate regulation of the gas flow, which cannot be achieved by the existing products such as Figure 1 .

[0045] According to the disclosed scheme, a high-pressure gas valve is also provided. In the high-pressure gas valve, the actuator for the high-pressure gas valve according to the disclosure can be configured, which can employ the housing structure discussed above, thereby obtaining the obvious technical advantages over the prior art as described above. In the high-pressure gas valve according to the disclosure, the actuator works with the gas flow regulating mechanism, for example, the driving rod in the actuator can be used to actuate the valve core in the gas flow regulating mechanism to move, and then the gas flow of the high-pressure gas valve is regulated through the movement of the valve core. As for the gas flow regulating mechanism, any feasible structural configuration can be used by those skilled in the art, for example, as exemplarily shown in Figure 1 , the disclosure does not make specific limitations thereto as long as it can be used with the actuator according to the disclosure to achieve the purpose of regulating the gas flow.

[0046] It should be understood that the high-pressure gas valve has many types, which can include but is not limited to, for example, high-pressure proportional valves, etc. The high-pressure gas valve according to the disclosure can be widely used in many occasions according to actual needs, such as can be installed on a gas engine (such as a high-pressure direct injection gas engine) of a device such as a vehicle, a ship, an aircraft, etc., and the gas engine can use, for example, natural gas, hydrogen, methanol or mixed gas as fuel gas.

[0047] The housing structure, the actuator for the high-pressure gas valve and the high-pressure gas valve according to the disclosure are only illustrated in detail by way of example, and these examples are only for illustrating the principles and implementation manners of the disclosure, and do not limit the disclosure. Those skilled in the art can also make various modifications and improvements without departing from the scope of the disclosure. Therefore, all equivalent technical solutions shall belong to the scope of the disclosure and be limited by the claims of the disclosure.

Claims

1. A housing structure (10) for a high-pressure gas valve, characterized in that, The shell structure (10) has a length extending along an axis (L) and includes a first section (11), a second section (12) and a third section (13), the second section (12) being made of a non-magnetic material and arranged between the first section (11) and the third section (13), the first section (11) and the third section (13) being made of a magnetic material and connected to the second section (12) by welding, the first section (11), the second section (12) and the third section (13) defining the accommodating space (14) of the shell structure (10) after being connected.

2. The shell structure (10) according to claim 1, wherein, The first segment (11) has a first opening (111) and a connecting portion (112). The first opening (111) is located at the end of the first segment (11), and the connecting portion (112) is located near the first opening (111) and configured to connect an end cap (40) to close the first opening (111); and / or The second section (12) is constructed in a cylindrical shape; and / or The third section (13) has a second opening (131), a stop (132) and an extension (133). The second opening (131) is located at the end of the third section (13). The stop (132) is located inside the third section (13) and is configured to prevent the component housed in the receiving space (14) from moving relative to the third section (13). The extension (133) is located outside the third section (13) and is configured to extend in a direction perpendicular to the axis (L).

3. The shell structure (10) according to claim 2, wherein, The first section (11) also has a first assembly part (113) disposed on the outer surface of the first section (11) for assembling a first seal (50), the first seal (50) being disposed between the end cap (40) and the first section (11); and / or The third section (13) also has a support (134) and / or a second assembly (135), the support (134) being disposed between the second opening (131) and the stop (132) for supporting a component passing through the third section (13) along the axis (L), and the second assembly (135) being disposed on the outer surface of the third section (13) for assembling a second seal (60).

4. The shell structure (10) according to claim 1, wherein, The second section (12) is connected to the first section (11) by friction welding, laser welding or brazing, and / or the second section (12) is connected to the third section (13) by friction welding, laser welding or brazing.

5. The shell structure (10) according to any one of claims 1-4, wherein, The thickness of the shell structure (10) ranges from 4 to 15 mm.

6. An actuator (100) for a high-pressure gas valve, characterized in that, include: The shell structure (10) as described in any one of claims 1-5; An electromagnetic part (20) is arranged on the housing structure (10), and the electromagnetic part (20) provides electromagnetic force when energized; as well as A drive rod (30), which is at least partially arranged in the receiving space (14) of the housing structure (10), moves along the axis (L) and extends outward from the third section (13) under the drive of the electromagnetic force, such that the drive rod (30) acts on the gas flow regulating mechanism of the high-pressure gas valve to regulate the gas flow.

7. The actuator (100) for a high-pressure gas valve according to claim 6, wherein, The electromagnetic part (20) includes: A coil (21) is arranged around the axis (L), and the coil (21) generates a magnetic field when energized to provide the electromagnetic force; A first magnetic core (23) is arranged in the receiving space (14) of the housing structure (10), the first magnetic core (23) is adjacent to the third section (13) and remains stationary relative to the third section (13), and the drive rod (30) passes through the first magnetic core (23). A second magnetic core (24) is movably arranged within the receiving space (14) of the housing structure (10). The second magnetic core (24) is adjacent to the first section (11) and connected to the drive rod (30). After being driven by the electromagnetic force, the second magnetic core (24) drives the drive rod (30) to move along the axis (L); and / or The displacement range of the drive rod (30) is not less than 20mm.

8. The actuator (100) for a high-pressure gas valve according to claim 7, wherein, The electromagnetic part (20) includes a coil frame (22) which is fitted around the axis (L) on the outer surface of the second section (12), and the coil (21) is wound on the coil frame (22).

9. The actuator (100) for a high-pressure gas valve according to claim 7 or 8, wherein, The first magnetic core (23) has a receiving portion (231) on the side facing the second magnetic core (24), and the end (241) of the second magnetic core (24) facing the first magnetic core (23) is configured to be accommodated in the receiving portion (231).

10. A high-pressure gas valve, characterized in that, include: The actuator (100) for a high-pressure gas valve as described in any one of claims 6-9; and The gas flow regulating mechanism is provided in which the drive rod (30) of the actuator (100) acts on the gas flow regulating mechanism after being driven to adjust the gas flow of the high-pressure gas valve.

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