Regulating valve, water injection system and ship

Abstract

The invention relates to the technical field of valves, and discloses a regulating valve, a water injection system and a ship, the regulating valve comprises a valve body and a valve core, a valve cavity is arranged in the valve body, the valve body is provided with a first valve port and a second valve port, the first valve port and the second valve port are both communicated with the valve cavity, an expansion cavity is arranged in the valve core, the valve core is provided with a plurality of first flow channels and a plurality of second flow channels, the multiple first flow channels and the multiple second flow channels communicate with the expansion cavity, the multiple first flow channels, the multiple second flow channels and the expansion cavity jointly form a communicating medium flow channel, and the valve element is rotatably arranged in the valve cavity so that each first flow channel can selectively communicate with the first valve port, and each second flow channel can selectively communicate with the second valve port. Therefore, the friction area between the medium and the through-flow inner wall face is increased through the design of the small-drift-diameter multiple flow channels, fluid noise can be well restrained, meanwhile, the expansion cavity serves as a pressure buffering area, the flow speed of the medium can be remarkably reduced, and generation of high-frequency noise can be further reduced.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a regulating valve, a water injection system and a ship. Background Art

[0002] As the core control component in the pipeline system, the regulating valve is widely used in petrochemical, electric power, metallurgy, shipbuilding and other fields. The regulating valve is mainly used to accurately adjust medium flow, pressure and other parameters.

[0003] In the related art, the traditional regulating valve realizes the flow regulation of the medium by adjusting the relative opening of the valve core and the valve seat. However, the traditional regulating valve is easy to form a high-speed jet under the conditions of high pressure difference and high flow rate, which leads to excessive fluid noise.

[0004] Therefore, under high pressure difference and high flow rate conditions, how to achieve throttling and noise reduction by optimizing the flow path and structure of the regulating valve has become a technical problem that needs to be overcome urgently in this field. Summary of the invention

[0005] The present application provides a regulating valve, a water injection system and a ship, which solve the technical problem of excessive fluid noise in the regulating valve under high pressure difference and high flow rate conditions.

[0006] It can suppress fluid noise well. At the same time, the expansion chamber serves as a pressure buffer area. When the medium enters the expansion chamber from the first flow channel or the second flow channel, the medium flow space suddenly expands, resulting in a significant decrease in the medium flow rate. This can avoid turbulence and cavitation as much as possible, thereby further reducing the generation of high-frequency noise.

[0007] The main technical solutions adopted in this application include: In a first aspect, an embodiment of the present application provides a regulating valve, comprising: A valve body, wherein a valve cavity is arranged in the valve body, and the valve body has a first valve port and a second valve port, and the first valve port and the second valve port are both connected to the valve cavity; A valve core, wherein an expansion cavity is provided in the valve core, the valve core has a plurality of first flow channels and a plurality of second flow channels, the plurality of first flow channels and the plurality of second flow channels are all connected to the expansion cavity, and the plurality of first flow channels, the plurality of second flow channels and the expansion cavity together form a connected medium flow channel; The valve core is rotatably disposed in the valve cavity so that each first flow channel is selectively connected to the first valve port and each second flow channel is selectively connected to the second valve port.

[0008] According to the regulating valve proposed in the embodiment of the first aspect of the present application, compared with the traditional large-diameter single-channel valve core structure, the medium flow channel of the valve core in the present application is composed of multiple first flow channels, multiple second flow channels and an expansion chamber. Among them, when the high-pressure difference and high-flow rate medium flows through the multiple first flow channels and the multiple second flow channels, the design of small-diameter multi-flow channels increases the friction area between the medium and the inner wall of the flow channel, and increases the proportion of friction energy in energy loss, which is beneficial to reduce the proportion of sound energy, and thus can better suppress fluid noise. At the same time, the expansion chamber serves as a pressure buffer area. When the medium enters the expansion chamber from the first flow channel or the second flow channel, the medium flow space suddenly expands, resulting in a significant reduction in the medium flow rate. This can minimize the occurrence of turbulence and cavitation, which is beneficial to further reduce the generation of high-frequency noise.

[0009] Optionally, the plurality of first flow channels correspond to the plurality of second flow channels one by one, and each first flow channel and each second flow channel extends along a first direction, wherein the first direction is perpendicular to the rotation axis direction of the valve core.

[0010] With such an arrangement, the flow area can be changed by rotating the valve core, thereby achieving flow regulation, and the regulation method is simple and reliable. When the medium flows in the first flow channel or the second flow channel, the obstruction of the medium flow channel to the medium can be reduced, which is beneficial to reducing the formation of cavitation or turbulence, thereby helping to reduce fluid noise.

[0011] Optionally, along the first direction, the first flow channel is arranged opposite to the corresponding second flow channel.

[0012] In this way, each first flow channel and the corresponding second flow channel are arranged opposite to each other along the first direction, which can further reduce the obstruction to the flow of the medium, thereby further reducing the fluid noise.

[0013] Optionally, the regulating valve further comprises a first mounting assembly and a first elastic seal, both of which are arranged corresponding to the first valve port, the first elastic seal is fixed in the valve cavity, and along the axial direction of the first valve port, the first mounting assembly is sealingly abutted and installed between the valve core and the first elastic seal; The regulating valve also includes a second mounting assembly and a second elastic seal. The second mounting assembly and the second elastic seal are both arranged corresponding to the second valve port. The second elastic seal is fixed in the valve cavity. Along the axial direction of the second valve port, the second mounting assembly is sealingly abutted and installed between the valve core and the second elastic seal.

[0014] In this way, by arranging the first elastic seal and the second elastic seal, when the valve core is worn, the corresponding first mounting assembly and / or second mounting assembly can be pushed toward the valve core, thereby compensating for the gap caused by wear to ensure that the sealing performance of the valve core meets the requirements, thereby improving the reliability and service life of the valve core.

[0015] Optionally, the first mounting assembly includes a first valve seat and a first filter element. Along the axial direction of the first valve port, the first filter element has a first end and a second end arranged oppositely. The first end faces the valve core. The first valve seat is fixedly arranged at the first end and is in sealing contact with the valve core. The second end is in sealing contact with the first elastic seal. Along the axial direction of the first valve port, the first filter element further has a plurality of first filter holes arranged oppositely to the first valve port; The second mounting assembly includes a second valve seat and a second filter element. Along the axial direction of the second valve port, the second filter element has a third end and a fourth end arranged oppositely. The third end faces the valve core. The second valve seat is fixedly arranged at the third end and is in sealing contact with the valve core. The fourth end is in sealing contact with the second elastic seal. Along the axial direction of the second valve port, the second filter element further has a plurality of second filter holes arranged oppositely to the second valve port.

[0016] With such an arrangement, it is possible to avoid the leakage of the medium between the first valve seat and the first filter element and between the second valve seat and the second filter element, which is beneficial to improving the sealing performance of the regulating valve. The first filter holes and the second filter holes can filter out the sediment in the medium, reduce the wear of the regulating valve by the sediment, and are beneficial to improving the service life of the regulating valve.

[0017] Optionally, the regulating valve further includes a first valve stem and a second valve stem. Along the rotation axis direction of the valve core, the valve body has a first mounting hole and a second mounting hole arranged oppositely. The first mounting hole and the second mounting hole are both communicated with the valve cavity. The first valve stem is rotatably inserted into the first mounting hole and is fixedly connected to the valve core. The second valve stem is rotatably inserted into the second mounting hole and is fixedly connected to the valve core.

[0018] With such an arrangement, when the first valve stem is used as the driving rod, one end of the first valve stem away from the valve core is in transmission connection with the driving part. The driving part drives the first valve stem to rotate, thereby driving the valve core to rotate, so that the valve core switches to different positions, achieving the purpose of opening and closing or flow regulation of the regulating valve.

[0019] Optionally, a first groove is provided on the outer peripheral surface of the first valve stem, and a first seal is arranged in the first groove. Along the radial direction of the first valve stem, the first seal is abutted and installed between the first groove and the inner peripheral surface of the first mounting hole; A second groove is provided on the outer peripheral surface of the second valve stem, and a second seal is arranged in the second groove. Along the radial direction of the second valve stem, the second seal is abutted and installed between the second groove and the inner peripheral surface of the second mounting hole.

[0020] With such an arrangement, it is possible to seal the gap between the first valve stem and the first mounting hole, reduce the risk of the medium flowing out of the first mounting hole, and it is possible to seal the gap between the second valve stem and the second mounting hole, reduce the risk of the medium flowing out of the second mounting hole.

[0021] Optionally, the regulating valve also includes a first rolling bearing and a second rolling bearing, the first rolling bearing is arranged between the inner circumference of the first mounting hole and the outer circumference of the first valve stem, and the second rolling bearing is arranged between the inner circumference of the second mounting hole and the outer circumference of the second valve stem.

[0022] With such arrangement, during the rotation of the valve stem, the first rolling bearing and the second rolling bearing can withstand the main friction and wear, reduce the wear between the first mounting hole and the first valve stem and between the second mounting hole and the second valve stem, and extend the service life of key components of the regulating valve.

[0023] In a second aspect, an embodiment of the present application provides a water injection system, comprising the regulating valve in the embodiment of the first aspect.

[0024] According to the water injection system proposed in the second aspect of the embodiment of the present application, the above-mentioned regulating valve is provided. Compared with the traditional large-diameter single-channel valve core structure, the medium flow channel of the valve core in the present application is composed of multiple first flow channels, multiple second flow channels and an expansion chamber. Among them, when the high-pressure difference and high-flow rate medium flows through the multiple first flow channels and the multiple second flow channels, the design of small-diameter multi-flow channels increases the friction area between the medium and the inner wall of the flow channel, and increases the proportion of friction energy in energy loss, which is beneficial to reduce the proportion of sound energy, and thus can better suppress fluid noise. At the same time, the expansion chamber acts as a pressure buffer area. When the medium enters the expansion chamber from the first flow channel or the second flow channel, the medium flow space suddenly expands, thereby causing the medium flow rate to be significantly reduced. This can minimize the occurrence of turbulence and cavitation, which is beneficial to further reduce the generation of high-frequency noise.

[0025] In a third aspect, an embodiment of the present application provides a ship, comprising the water injection system in the embodiment of the second aspect.

[0026] According to the ship proposed in the third aspect of the embodiment of the present application, by providing the above-mentioned water injection system, compared with the traditional large-diameter single-channel valve core structure, the medium flow channel of the valve core in the present application is composed of multiple first flow channels, multiple second flow channels and an expansion chamber, wherein, when the high pressure difference and high flow rate medium flows through the multiple first flow channels and the multiple second flow channels, the design of small-diameter multi-flow channels increases the friction area between the medium and the inner wall of the flow path, and increases the proportion of friction energy in energy loss, which is beneficial to reduce the proportion of sound energy, and thus can better suppress fluid noise. At the same time, the expansion chamber serves as a pressure buffer area. When the medium enters the expansion chamber from the first flow channel or the second flow channel, the medium flow space suddenly expands, thereby causing the medium flow rate to be significantly reduced. This can minimize the occurrence of turbulence and cavitation, which is beneficial to further reduce the generation of high-frequency noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 A cross-sectional view of a regulating valve provided by an embodiment of the present application; Figure 2 is Figure 1 A partial enlarged view of part A in Figure 3 is Figure 1 A partial enlarged view of part B in Figure 4 A top view of a regulating valve provided by an embodiment of the present application; Figure 5 A three-dimensional view of a valve core provided by an embodiment of the present application; Figure 6 A left view of a valve core provided by an embodiment of the present application; Figure 7 A front view of a valve core provided by an embodiment of the present application; Figure 8 is Figure 7 A cross-sectional view taken along line C-C in Figure 9 A schematic diagram of a water injection system provided by an embodiment of the present application.

[0029]

Explanation of Reference Numerals

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0031] Unless otherwise defined, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application pertains; the terms used in the description of the present application in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0032] Referring to "embodiments" in the present application means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those of ordinary skill in the art explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments.

[0033] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "attached" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] The term "and / or" in the present application is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0035] The term "multiple" as used in the present application refers to more than two (including two). Similarly, the term "multiple groups" refers to more than two groups (including two groups), and the term "multiple sheets" refers to more than two sheets (including two sheets).

[0036] As the core control component in the pipeline system, the regulating valve is widely used in petrochemical, electric power, metallurgy, shipbuilding and other fields. The regulating valve is mainly used to accurately adjust medium flow, pressure and other parameters.

[0037] In the related technology, traditional regulating valves mostly adopt a single-channel valve core structure, and realize medium flow regulation by adjusting the relative opening of the valve core and the valve seat. However, traditional regulating valves are prone to form high-speed jets under high pressure difference and high flow rate conditions, which leads to excessive fluid noise.

[0038] To reduce noise, existing improvement plans include adding a porous noise reduction layer to the valve core surface, installing a diffuser downstream of the valve cavity, or using a multi-stage pressure-reducing cage structure. However, these technologies still have obvious limitations: porous materials are easily blocked by medium particles, affecting the adjustment accuracy; diffusers can only weaken downstream noise and cannot solve the turbulence source inside the valve cavity; although multi-stage cages can reduce pressure in steps, there are still sudden changes in flow rate at the inter-stage connection, and the complex flow channel increases the flow resistance and manufacturing cost. In addition, the linear motion or fixed-angle rotation of the traditional valve core makes it difficult to achieve gradual flow adjustment, which aggravates the generation of pressure pulsation noise.

[0039] Therefore, under high pressure difference and high flow rate conditions, how to achieve throttling and noise reduction by optimizing the flow path and structure of the regulating valve has become a technical problem that needs to be overcome urgently in this field.

[0040] Based on this, the present application proposes a regulating valve 100. Compared with the traditional large-diameter single-channel valve core structure, the medium flow channel of the valve core 2 in the present application is composed of multiple first flow channels 22, multiple second flow channels 23 and an expansion chamber 21. When the high-pressure difference and high-flow rate medium flows through the multiple first flow channels 22 and the multiple second flow channels 23, the small-diameter multi-channel design increases the friction area between the medium and the inner wall of the flow path, and increases the proportion of friction energy in energy loss, which is beneficial to reduce the proportion of sound energy, and thus can better suppress fluid noise. At the same time, the expansion chamber 21 serves as a pressure buffer area. When the medium enters the expansion chamber 21 from the first flow channel 22 or the second flow channel 23, the medium flow space suddenly expands, resulting in a significant reduction in the medium flow rate. This can minimize the occurrence of turbulence and cavitation, which is beneficial to further reduce the generation of high-frequency noise.

[0041] The regulating valve 100, the water injection system 1000 and the ship proposed in the embodiments of the present application are described below with reference to the accompanying drawings.

[0042] like Figures 1 - 8As shown in the figure, the regulating valve 100 according to the first aspect embodiment of the present application includes: a valve body 1 and a valve core 2. A valve cavity 11 is provided inside the valve body 1. The valve body 1 has a first valve port 12 and a second valve port 13. Both the first valve port 12 and the second valve port 13 are communicated with the valve cavity 11. An expansion cavity 21 is provided inside the valve core 2. The valve core 2 has a plurality of first flow channels 22 and a plurality of second flow channels 23. The plurality of first flow channels 22 and the plurality of second flow channels 23 are both communicated with the expansion cavity 21. The plurality of first flow channels 22, the plurality of second flow channels 23 and the expansion cavity 21 together form a connected medium flow channel. Wherein, the valve core 2 is rotatably arranged in the valve cavity 11 so that each first flow channel 22 selectively communicates with the first valve port 12 and each second flow channel 23 selectively communicates with the second valve port 13.

[0043] Specifically, as Figure 1 shown, the valve body 1 has a first valve port 12 and a second valve port 13. Optionally, the axial direction of the first valve port 12 is parallel to the axial direction of the second valve port 13, that is, along the axial direction of the first valve port 12 or the axial direction of the second valve port 13, the first valve port 12 and the second valve port 13 are oppositely arranged. Further, a valve cavity 11 is also provided inside the valve body 1. Both the first valve port 12 and the second valve port 13 are communicated with the valve cavity 11.

[0044] Referring to Figure 1 、 Figures 5 - 8 shown, an expansion cavity 21 is provided inside the valve core 2. The valve core 2 also has a plurality of first flow channels 22 communicated with the expansion cavity 21 and a plurality of second flow channels 23 communicated with the expansion cavity 21. The plurality of first flow channels 22, the plurality of second flow channels 23 and the expansion cavity 21 together form a connected medium flow channel. It can be understood that the diameter of each first flow channel 22 is smaller than the size of the expansion cavity 21, and the diameter of each second flow channel 23 is smaller than the size of the expansion cavity 21. The medium (such as water, air, refrigerant, etc.) can flow in the medium flow channel. For example, when the first flow channel 22 serves as the medium inlet and the second flow channel 23 serves as the medium outlet, the medium flows through the first flow channel 22, the expansion cavity 21 and the second flow channel 23 in sequence. When the second flow channel 23 serves as the medium inlet and the first flow channel 22 serves as the medium outlet, the medium flows through the second flow channel 23, the expansion cavity 21 and the first flow channel 22 in sequence.

[0045] Continuing to refer to Figure 1As shown in the figure, the valve core 2 is rotatably arranged in the valve cavity 11, so that each first flow channel 22 can be selectively communicated with the first valve port 12 and each second flow channel 23 can be selectively communicated with the second valve port 13. That is to say, multiple first flow channels 22 can be not communicated with the first valve port 12, multiple first flow channels 22 can be partially communicated with the first valve port 12, and multiple first flow channels 22 can also be all communicated with the first valve port 12. Similarly, multiple second flow channels 23 can be not communicated with the second valve port 13, multiple second flow channels 23 can be partially communicated with the second valve port 13, and multiple second flow channels 23 can also be all communicated with the second valve port 13. It is specifically set according to actual needs and is not specifically limited here.

[0046] When multiple first flow channels 22 are not communicated with the first valve port 12, multiple second flow channels 23 are not communicated with the second valve port 13, multiple first flow channels 22 are not communicated with the first valve port 12, and multiple second flow channels 23 are not communicated with the second valve port 13, the first valve port 12 and the second valve port 13 are blocked by the valve core 2, and the medium cannot flow in the valve body 1; when some of the multiple first flow channels 22 are communicated with the first valve port 12 and some of the multiple second flow channels 23 are communicated with the second valve port 13, the first valve port 12 and the second valve port 13 are adapted to be communicated through the medium flow channel; when some of the multiple first flow channels 22 are communicated with the first valve port 12 and multiple second flow channels 23 are all communicated with the second valve port 13, the first valve port 12 and the second valve port 13 are adapted to be communicated through the medium flow channel; when multiple first flow channels 22 are all communicated with the first valve port 12 and some of the multiple second flow channels 23 are communicated with the second valve port 13, the first valve port 12 and the second valve port 13 are adapted to be communicated through the medium flow channel; when multiple first flow channels 22 are all communicated with the first valve port 12 and multiple second flow channels 23 are all communicated with the second valve port 13, the first valve port 12 and the second valve port 13 are adapted to be communicated through the medium flow channel.

[0047] It can be seen from this that by rotating the valve core 2, the on-off of the first valve port 12 and the second valve port 13 can be controlled, so as to control whether the medium flows in the regulating valve 100. At the same time, by controlling the number of multiple first flow channels 22 communicated with the first valve port 12 and the number of multiple second flow channels 23 communicated with the first valve port 12, the regulation of the medium flow rate in the regulating valve 100 can be realized. For example, assuming the initial state, half of the multiple first flow channels 22 are communicated with the first valve port 12 and half of the multiple second flow channels 23 are communicated with the second valve port 13. If it is necessary to increase the medium flow rate, by rotating the valve core 2, so that multiple first flow channels 22 are all communicated with the first valve port 12 and multiple second flow channels 23 are all communicated with the second valve port 13. In this way, by rotating the valve core 2, the flow-through area can be changed, so as to realize the flow rate regulation, and the regulation method is simple and reliable.

[0048] Compared with the traditional large-diameter single-channel valve core structure, the medium flow channel in the present application includes multiple first flow channels 22 and multiple second flow channels 23. It can be understood that the multiple first flow channels 22 and the multiple second flow channels 23 form a small-diameter multi-channel structure. This structural design can increase the friction area between the medium and the inner wall of the flow path under high pressure difference and high flow rate conditions. That is to say, when the high-pressure difference and high-flow rate medium flows through the multiple first flow channels 22 and the multiple second flow channels 23, the medium needs to consume more friction capacity, thereby increasing the proportion of friction energy consumption in energy loss, which is beneficial to reducing the proportion of sound energy, and thus can better suppress fluid noise.

[0049] Furthermore, the medium flow channel also includes an expansion chamber 21 that is connected to multiple first flow channels 22 and multiple second flow channels 23. The expansion chamber 21 can be constructed as a spherical chamber or a square chamber. For example, the first flow channel 22 serves as a medium inlet and the second flow channel 23 serves as a medium outlet. The medium flows into the expansion chamber 21 from the first flow channel 22, and the expansion chamber 21 serves as a pressure buffer area. When the medium enters the expansion chamber 21 from the first flow channel 22, the medium flow space suddenly expands, resulting in a significant reduction in the flow rate of the medium entering the expansion chamber 21. This can avoid the generation of turbulence and cavitation as much as possible, which is conducive to further reducing the generation of high-frequency noise. Similarly, the second flow channel 23 serves as a medium inlet and the first flow channel 22 serves as a medium outlet. The medium flows into the expansion chamber 21 from the second flow channel 23, and the expansion chamber 21 serves as a pressure buffer area. When the medium enters the expansion chamber 21 from the second flow channel 23, the medium flow space suddenly expands, resulting in a significant reduction in the flow rate of the medium entering the expansion chamber 21. This can avoid the generation of turbulence and cavitation as much as possible, which is conducive to further reducing the generation of high-frequency noise.

[0050] To summarize, according to the regulating valve 100 proposed in the embodiment of the first aspect of the present application, compared with the traditional large-diameter single-channel valve core structure, the medium flow channel of the valve core 2 in the present application is composed of multiple first flow channels 22, multiple second flow channels 23 and an expansion chamber 21. When the high-pressure difference and high-flow rate medium flows through the multiple first flow channels 22 and the multiple second flow channels 23, the design of small-diameter multi-flow channels increases the friction area between the medium and the inner wall of the flow path, and increases the proportion of friction energy in energy loss, which is beneficial to reduce the proportion of sound energy, and thus can better suppress fluid noise. At the same time, the expansion chamber 21 serves as a pressure buffer area. When the medium enters the expansion chamber 21 from the first flow channel 22 or the second flow channel 23, the medium flow space suddenly expands, resulting in a significant reduction in the medium flow rate. This can minimize the occurrence of turbulence and cavitation, which is beneficial to further reduce the generation of high-frequency noise.

[0051] In some embodiments of the present application, Figure 7As shown, a plurality of first flow channels 22 correspond to a plurality of second flow channels 23 one by one, and each first flow channel 22 and each second flow channel 23 extend along the first direction X, where the first direction X is perpendicular to the axis direction of the valve core 2.

[0052] Specifically, with the valve core 2 as a reference, the first direction X is perpendicular to the axis direction of the valve core 2. Along the first direction X, the valve core 2 has a relatively arranged first side and a second side. Among them, a plurality of first flow channels 22 are provided on the first side, and a plurality of second flow channels 23 are provided on the second side. The plurality of first flow channels 22 correspond to the plurality of second flow channels 23 one by one. That is to say, the number of the first flow channels 22 is the same as that of the second flow channels 23. Optionally, the diameter of the first flow channels 22 is the same as that of the second flow channels 23.

[0053] As a specific example, the entire valve cavity 11 is linear. Along the linear extension direction of the valve cavity 11, the first valve port 12 and the second valve port are arranged oppositely. When the valve core 2 rotates, the first direction X rotates with the rotation of the valve core 2. For example, when the first direction X follows the valve core 2 to rotate to be perpendicular to the axial direction of the first valve port 12 or the axial direction of the second valve port 13, a plurality of first flow channels 22 are not communicated with the first valve port 12, and a plurality of second flow channels 23 are not communicated with the second valve port 13. The first valve port 12 and the second valve port 13 are blocked by the valve core 2, and the medium cannot flow in the valve body 1. When the first direction X follows the valve core 2 to rotate to an angle of 45° with the axial direction of the first valve port 12 or the axial direction of the second valve port 13, half of the plurality of first flow channels 22 are communicated with the first valve port 12, and half of the plurality of second flow channels 23 are communicated with the second valve port 13. The first valve port 12 and the second valve port 13 are suitable for being communicated through the medium flow channel. Assuming the medium flow rate is M. When the first direction X follows the valve core 2 to rotate to be parallel to the axial direction of the first valve port 12 or the axial direction of the second valve port 13, a plurality of first flow channels 22 are all communicated with the first valve port 12, and a plurality of second flow channels 23 are all communicated with the second valve port 13. The first valve port 12 and the second valve port 13 are suitable for being communicated through the medium flow channel, and at this time the medium flow rate is the largest, and the medium flow rate is 2M. In this way, by rotating the valve core 2, the flow area can be changed, so as to realize the flow rate adjustment, and the adjustment method is simple and reliable.

[0054] Further, one end of the first flow channel 22 communicates with the external space, and the other end of the first flow channel 22 communicates with the expansion cavity 21 inside the valve core 2. One end of the second flow channel 23 communicates with the external space, and the other end of the second flow channel 23 communicates with the expansion cavity 21 inside the valve core 2. Each first flow channel 22 and each second flow channel 23 extend along the first direction X. That is to say, the first flow channels 22 and the second flow channels 23 are through-hole structures that extend linearly along the first direction X. With such a setting, when the medium flows in the first flow channel 22 or the second flow channel 23, the blocking of the medium flow channel on the medium can be reduced, which is beneficial to reducing the formation of cavitation or turbulence, and thus is beneficial to reducing fluid noise.

[0055] In some embodiments of the present application, along the first direction X, the first flow channel 22 and the corresponding second flow channel 23 are arranged oppositely. Specifically, when the medium flows into the expansion cavity 21 and then into the second flow channel 23 in sequence from the first flow channel 22, or when the medium flows into the expansion cavity 21 and then into the first flow channel 22 in sequence from the second flow channel 23, since each first flow channel 22 and the corresponding second flow channel 23 are arranged oppositely along the first direction X, the blocking of the medium flow can be further reduced, thereby further reducing fluid noise.

[0056] In some embodiments of the present application, as Figures 1 - 3 shown, the regulating valve 100 further includes a first mounting assembly 3 and a first elastic seal 4. The first mounting assembly 3 and the first elastic seal 4 are both arranged corresponding to the first valve port 12. The first elastic seal 4 is fixed in the valve cavity 11. Along the axial direction of the first valve port 12, the first mounting assembly 3 is hermetically and abuttably mounted between the valve core 2 and the first elastic seal 4. The regulating valve 100 further includes a second mounting assembly 5 and a second elastic seal 6. The second mounting assembly 5 and the second elastic seal 6 are both arranged corresponding to the second valve port 13. The second elastic seal 6 is fixed in the valve cavity 11. Along the axial direction of the second valve port 13, the second mounting assembly 5 is hermetically and abuttably mounted between the valve core 2 and the second elastic seal 6.

[0057] Specifically, referring to Figure 1 and Figure 2 shown, the first elastic seal 4 is arranged corresponding to the first valve port 12, that is, the first elastic seal 4 is arranged on the side of the valve core 2 away from the second valve port 13. The first elastic seal 4 is fixedly installed in the valve cavity 11. The fixed installation methods include but are not limited to bolt connection, snap connection, etc. Optionally, the first elastic seal 4 can be selected from but not limited to an O-shaped hollow rubber ring.

[0058] Further, the first mounting assembly 3 is used to mount the valve core 2. Along the axial direction of the first valve port 12, the first mounting assembly 3 is sealingly abutted and mounted between the valve core 2 and the first elastic seal 4. The valve core 2 can rotate relative to the first mounting assembly 3. Since the valve core 2 and the first mounting assembly 3 are configured for sealing cooperation, the medium will not leak between the valve core 2 and the first mounting assembly 3, thus improving the sealing performance of the regulating valve 100. At the same time, the first elastic seal 4 and the first mounting assembly 3 are configured for sealing abutment. On the one hand, this can prevent the medium from leaking between the first elastic seal 4 and the first mounting assembly 3, further improving the sealing performance of the regulating valve 100. On the other hand, the first elastic seal 4 is compressed by the abutting assembly, so the first elastic seal 4 will provide a certain elastic supporting force to the first mounting assembly 3. Further, the elastic supporting force of the first elastic seal 4 is transmitted to the valve core 2 through the first mounting assembly 3. When the first mounting assembly 3 is worn due to the long-term operation of the valve core 2, the first elastic seal 4 can push the first mounting assembly 3 towards the valve core 2 to compensate for the gap caused by the wear and ensure that the sealing performance of the valve core 2 meets the requirements, improving the reliability and service life of the valve core 2.

[0059] Similarly, referring to Figure 1 and Figure 3 As shown, the second elastic seal 6 is correspondingly arranged with the second valve port 13, that is, the second elastic seal 6 is arranged on the side of the valve core 2 away from the first valve port. The second elastic seal 6 is fixedly installed in the valve cavity 11, and the fixed installation methods include but are not limited to bolt connection, snap connection, etc. Optionally, the second elastic seal 6 can also be selected but is not limited to an O-shaped hollow rubber ring.

[0060] Further, the second mounting assembly 5 is used to mount the valve core 2. Along the axial direction of the second valve port 13, the second mounting assembly 5 is sealingly abutted and mounted between the valve core 2 and the second elastic seal 6. The valve core 2 can rotate relative to the second mounting assembly 5. Since the valve core 2 and the second mounting assembly 5 are configured for sealing cooperation, the medium will not leak between the valve core 2 and the second mounting assembly 5, thus improving the sealing performance of the regulating valve 100. At the same time, the second elastic seal 6 and the second mounting assembly 5 are configured for sealing abutment. On the one hand, this can prevent the medium from leaking between the second elastic seal 6 and the second mounting assembly 5, further improving the sealing performance of the regulating valve 100. On the other hand, the second elastic seal 6 is compressed by the abutting assembly, so the second elastic seal 6 will provide a certain elastic supporting force to the second mounting assembly 5. Further, the elastic supporting force of the second elastic seal 6 is transmitted to the valve core 2 through the second mounting assembly 5. When the second mounting assembly 5 is worn due to the long-term operation of the valve core 2, the second elastic seal 6 can push the second mounting assembly 5 towards the valve core 2 to compensate for the gap caused by the wear and ensure that the sealing performance of the valve core 2 meets the requirements, improving the reliability and service life of the valve core 2.

[0061] In summary, by providing the first elastic seal 4 and the second elastic seal 6, when the valve core 2 wears, it can push the corresponding first mounting assembly 3 and / or the second mounting assembly 5 towards the valve core 2, thereby compensating for the clearance caused by wear, ensuring that the sealing performance of the valve core 2 meets the requirements, and thus improving the reliability and service life of the valve core 2.

[0062] In some embodiments of the present application, as Figures 1 - 3 shown, the first mounting assembly 3 includes a first valve seat 31 and a first filter element 32. Along the axial direction of the first valve port 12, the first filter element 32 has a first end 321 and a second end 322 which are oppositely arranged. The first end 321 faces the valve core 2. The first valve seat 31 is fixedly arranged at the first end 321 and is in sealing contact with the valve core 2. The second end 322 is in sealing contact with the first elastic seal 4. Along the axial direction of the first valve port 12, the first filter element 32 further has a plurality of first filter holes 323 which are oppositely arranged with the first valve port 12. The second mounting assembly 5 includes a second valve seat 51 and a second filter element 52. Along the axial direction of the second valve port 13, the second filter element 52 has a third end 521 and a fourth end 522 which are oppositely arranged. The third end 521 faces the valve core 2. The second valve seat 51 is fixedly arranged at the third end 521 and is in sealing contact with the valve core 2. The fourth end 522 is in sealing contact with the second elastic seal 6. Along the axial direction of the second valve port 13, the second filter element 52 further has a plurality of second filter holes 523 which are oppositely arranged with the second valve port 13.

[0063] Specifically, as Figure 2 shown, along the axial direction of the first valve port 12, the first filter element 32 has a first end 321 and a second end 322 which are oppositely arranged. The first end 321 is closer to the valve core 2 than the second end 322. Among them, the first end 321 has a first mounting groove. The first valve seat 31 is fixedly installed in the first mounting groove. The first valve seat 31 is in sealing contact with the valve core 2. And a sealing ring is provided in the first mounting groove. The sealing ring is in contact with and installed between the first valve seat 31 and the first mounting groove. With such a setting, it is avoided that the medium leaks between the first valve seat 31 and the first filter element 32, which is beneficial to improving the sealing performance of the regulating valve 100.

[0064] A second mounting groove is provided at the second end 322 of the first filter element 32. The second mounting groove is in sealing contact with the first elastic seal 4. With such a setting, the sealing area between the first filter element 32 and the first elastic seal 4 can be increased, thereby improving the sealing performance.

[0065] Further, along the axial direction of the first valve port 12, the first filter element 32 further has a plurality of first filter holes 323 disposed opposite to the first valve port 12. The plurality of first filter holes 323 can be configured as an array structure. With such a setting, when the medium flows in or out from the first valve port 12, the first filter holes 323 can filter impurities in the medium. For example, sediment in the medium can be filtered out, reducing the wear of the regulating valve 100 by the sediment, which is beneficial to improving the service life of the regulating valve 100.

[0066] Similarly, as Figure 3 shown, along the axial direction of the second valve port 13, the second filter element 52 has a third end 521 and a fourth end 522 disposed opposite to each other. The third end 521 is closer to the valve core 2 than the fourth end 522. Among them, the third end 521 has a third installation groove, and the second valve seat 51 is fixedly installed in the third installation groove. The second valve seat 51 is in sealing contact with the valve core 2, and a sealing ring is provided in the third installation groove. The sealing ring is abutted and installed between the second valve seat 51 and the third installation groove. With such a setting, it is possible to prevent the medium from leaking between the second valve seat 51 and the second filter element 52, which is beneficial to improving the sealing performance of the regulating valve 100.

[0067] The fourth end 522 of the second filter element 52 is provided with a fourth installation groove, and the fourth installation groove is in sealing contact with the second elastic seal 6. With such a setting, the sealing area between the second filter element 52 and the second elastic seal 6 can be increased, thereby improving the sealing performance.

[0068] Further, along the axial direction of the second valve port 13, the second filter element 52 further has a plurality of second filter holes 523 disposed opposite to the second valve port 13. The plurality of second filter holes 523 can be configured as an array structure. With such a setting, when the medium flows in or out from the second valve port 13, the second filter holes 523 can filter impurities in the medium. For example, sediment in the medium can be filtered out, reducing the wear of the regulating valve 100 by the sediment, which is beneficial to improving the service life of the regulating valve 100.

[0069] In summary, preventing the medium from leaking between the first valve seat 31 and the first filter element 32 and between the second valve seat 51 and the second filter element 52 is beneficial to improving the sealing performance of the regulating valve 100. The first filter holes 323 and the second filter holes 523 can filter out sediment in the medium, reducing the wear of the regulating valve 100 by the sediment, which is beneficial to improving the service life of the regulating valve 100.

[0070] In some embodiments of the present application, such as Figure 1 and Figure 4As shown, the regulating valve 100 also includes a first valve stem 7 and a second valve stem 8. Along the rotation axis direction of the valve core 2, the valve body 1 has a first mounting hole 14 and a second mounting hole 15 that are relatively arranged. The first mounting hole 14 and the second mounting hole 15 are both connected to the valve cavity 11. The first valve stem 7 can be rotatably inserted into the first mounting hole 14 and fixedly connected to the valve core 2. The second valve stem 8 can be rotatably inserted into the second mounting hole 15 and fixedly connected to the valve core 2.

[0071] Specifically, along the rotation axis direction of the valve core 2, the first mounting hole 14 and the second mounting hole 15 are relatively arranged, and along the rotation axis direction of the valve core 2, the first valve stem 7 and the second valve stem 8 are arranged on opposite sides of the valve core 2, wherein the first valve stem 7 can be rotatably inserted into the first mounting hole 14 and fixedly connected to the valve core 2, and the second valve stem 8 can be rotatably inserted into the second mounting hole 15 and fixedly connected to the valve core 2. Optionally, the first valve stem 7 or the second valve stem 8 can act as a driving rod. When the first valve stem 7 acts as a driving rod, the end of the first valve stem 7 away from the valve core 2 is transmission-connected to the driving part, and the driving part drives the first valve stem 7 to rotate, thereby driving the valve core 2 to rotate, so that the valve core 2 is switched at different positions, thereby achieving the purpose of on-off or flow regulation of the regulating valve 100. Exemplarily, the total rotation stroke of the valve core 2 is 90°, and the valve stem drives the valve core 2 to reciprocate within a range of 90° to realize the on-off or flow regulation of the regulating valve 100. A valve cover 40 can be provided on the lower side of the second valve stem 8 so that the valve cover 40 covers the second mounting hole 15. The situation where the second valve stem 8 serves as a driving rod is similar to the above and will not be repeated here.

[0072] It should be understood that the switching between the two positions of the valve core 2 is electrically driven and can be remotely controlled or electrically and manually operated on site. There is no need to switch between manual and electric modes, and the handle and motor have dual inputs without interfering with each other.

[0073] In some embodiments of the present application, Figure 1 As shown, the outer circumferential surface of the first valve stem 7 is provided with a first groove 71, and the first sealing member 9 is arranged in the first groove 71. Along the radial direction of the first valve stem 7, the first sealing member 9 is abutted and installed between the first groove 71 and the inner circumferential surface of the first mounting hole 14. The outer circumferential surface of the second valve stem 8 is provided with a second groove 81, and the second sealing member 10 is arranged in the second groove 81. Along the radial direction of the second valve stem 8, the second sealing member 10 is abutted and installed between the second groove 81 and the inner circumferential surface of the second mounting hole 15.

[0074] Specifically, a first groove 71 is provided on the outer peripheral surface of the first valve stem 7. The first groove 71 can be one or multiple. If there are multiple first grooves 71, the multiple first grooves 71 are arranged at intervals along the axial direction of the first valve stem 7. A first seal 9 is arranged in each first groove 71. Along the radial direction of the first valve stem 7, the first seal 9 is abutted and installed between the first groove 71 and the inner peripheral surface of the first mounting hole 14. The first seal 9 can be selected but is not limited to a sealing ring. For example, the inner diameter of the sealing ring abuts against the first groove 71, and the outer diameter of the sealing ring abuts against the first mounting hole 14. In this way, the gap between the first valve stem 7 and the first mounting hole 14 can be sealed, reducing the risk of the medium flowing out of the first mounting hole 14. At the same time, the first seals 9 in the multiple first grooves 71 greatly improve the sealing effect between the first valve stem 7 and the first mounting hole 14. Even if one first seal 9 is slightly damaged or its sealing performance deteriorates, the remaining first seals 9 can still play a sealing role, effectively preventing the medium from leaking from the gap between the first valve stem 7 and the first mounting hole 14.

[0075] Similarly, a second groove 81 is provided on the outer peripheral surface of the second valve stem 8. The second groove 81 can be one or multiple. If there are multiple second grooves 81, the multiple second grooves 81 are arranged at intervals along the axial direction of the second valve stem 8. A second seal 10 is arranged in each second groove 81. Along the radial direction of the second valve stem 8, the second seal 10 is abutted and installed between the second groove 81 and the inner peripheral surface of the second mounting hole 15. The second seal 10 can be selected but is not limited to a sealing ring. For example, the inner diameter of the sealing ring abuts against the second groove 81, and the outer diameter of the sealing ring abuts against the second mounting hole 15. In this way, the gap between the second valve stem 8 and the second mounting hole 15 can be sealed, reducing the risk of the medium flowing out of the second mounting hole 15. At the same time, the second seals 10 in the multiple second grooves 81 greatly improve the sealing effect between the second valve stem 8 and the second mounting hole 15. Even if one second seal 10 is slightly damaged or its sealing performance deteriorates, the remaining second seals 10 can still play a sealing role, effectively preventing the medium from leaking from the gap between the second valve stem 8 and the second mounting hole 15.

[0076] In some embodiments of the present application, as Figure 1 shown, the regulating valve 100 further includes a first rolling bearing 20 and a second rolling bearing 30. The first rolling bearing 20 is arranged between the inner peripheral surface of the first mounting hole 14 and the outer peripheral surface of the first valve stem 7, and the second rolling bearing 30 is arranged between the inner peripheral surface of the second mounting hole 15 and the outer peripheral surface of the second valve stem 8.

[0077] Specifically, the first rolling bearing 20 is arranged between the inner circumference of the first mounting hole 14 and the outer circumference of the first valve stem 7, and the first rolling bearing 20 separates the inner circumference of the first mounting hole 14 from the outer circumference of the first valve stem 7, thereby avoiding direct contact between the first mounting hole 14 and the first valve stem 7, and the second rolling bearing 30 is arranged between the inner circumference of the second mounting hole 15 and the outer circumference of the second valve stem 8, and the second rolling bearing 30 separates the inner circumference of the second mounting hole 15 from the outer circumference of the second valve stem 8, thereby avoiding direct contact between the second mounting hole 15 and the second valve stem 8. During the rotation of the valve stem, the first rolling bearing 20 and the second rolling bearing 30 can withstand the main friction and wear, reduce the wear between the first mounting hole 14 and the first valve stem 7 and the wear between the second mounting hole 15 and the second valve stem 8, and extend the service life of the key components of the regulating valve 100.

[0078] like Figure 9 As shown, the water injection system 1000 according to the second embodiment of the present application includes the regulating valve 100 in the first embodiment. Figure 9 As shown, the water injection system 1000 includes two regulating valves 100 connected in series, and the flow rate of the water injection pipeline can be adjusted by the regulating valves 100.

[0079] According to the water injection system 1000 proposed in the second aspect of the embodiment of the present application, the regulating valve 100 mentioned above is provided. Compared with the traditional large-diameter single-channel valve core structure, the medium flow channel of the valve core 2 in the present application is composed of multiple first flow channels 22, multiple second flow channels 23 and an expansion chamber 21. When the high-pressure difference and high-flow rate medium flows through the multiple first flow channels 22 and the multiple second flow channels 23, the design of small-diameter multi-flow channels increases the friction area between the medium and the inner wall of the flow channel, and increases the proportion of friction energy in energy loss, which is beneficial to reduce the proportion of sound energy, and thus can better suppress fluid noise. At the same time, the expansion chamber 21 serves as a pressure buffer area. When the medium enters the expansion chamber 21 from the first flow channel 22 or the second flow channel 23, the medium flow space suddenly expands, resulting in a significant reduction in the medium flow rate. This can minimize the occurrence of turbulence and cavitation, which is beneficial to further reduce the generation of high-frequency noise.

[0080] The ship according to the third aspect embodiment of the present application includes the water injection system 1000 in the second aspect embodiment.

[0081] According to the ship proposed in the third aspect of the embodiment of the present application, the water injection system 1000 is provided. Compared with the traditional large-diameter single-channel valve core structure, the medium flow channel of the valve core 2 in the present application is composed of multiple first flow channels 22, multiple second flow channels 23 and an expansion chamber 21. When the high-pressure difference and high-flow rate medium flows through the multiple first flow channels 22 and the multiple second flow channels 23, the design of small-diameter multi-flow channels increases the friction area between the medium and the inner wall of the flow path, and increases the proportion of friction energy in energy loss, which is beneficial to reduce the proportion of sound energy, and thus can better suppress fluid noise. At the same time, the expansion chamber 21 serves as a pressure buffer area. When the medium enters the expansion chamber 21 from the first flow channel 22 or the second flow channel 23, the medium flow space suddenly expands, resulting in a significant reduction in the medium flow rate. This can minimize the occurrence of turbulence and cavitation, which is beneficial to further reduce the generation of high-frequency noise.

[0082] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0083] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0084] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

[0085] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A regulating valve, characterized in that, Comprising: A valve body, within which a valve chamber is provided. The valve body has a first valve port and a second valve port, and both the first valve port and the second valve port communicate with the valve chamber; A valve core, within which an expansion chamber is provided. The valve core has a plurality of first flow channels and a plurality of second flow channels. The plurality of first flow channels and the plurality of second flow channels all communicate with the expansion chamber, and the plurality of first flow channels, the plurality of second flow channels and the expansion chamber together form a connected medium flow channel; Wherein, the valve core is rotatably arranged in the valve chamber so that each first flow channel selectively communicates with the first valve port and each second flow channel selectively communicates with the second valve port.

2. The regulating valve according to claim 1, characterized in that, The plurality of first flow channels correspond one-to-one with the plurality of second flow channels, and each first flow channel and each second flow channel extend along a first direction, wherein the first direction is perpendicular to the axis direction of the valve core.

3. The regulating valve according to claim 2, characterized in that, Along the first direction, each first flow channel is arranged opposite to the corresponding second flow channel.

4. The regulating valve according to claim 1, characterized in that, The regulating valve further includes a first mounting assembly and a first elastic seal. The first mounting assembly and the first elastic seal are both arranged corresponding to the first valve port. The first elastic seal is fixed in the valve chamber. Along the axis of the first valve port, the first mounting assembly is sealingly abutted and installed between the valve core and the first elastic seal; The regulating valve further includes a second mounting assembly and a second elastic seal. The second mounting assembly and the second elastic seal are both arranged corresponding to the second valve port. The second elastic seal is fixed in the valve chamber. Along the axis of the second valve port, the second mounting assembly is sealingly abutted and installed between the valve core and the second elastic seal.

5. The regulating valve according to claim 4, characterized in that, The first mounting assembly includes a first valve seat and a first filter element. Along the axis of the first valve port, the first filter element has a first end and a second end arranged oppositely. The first end faces the valve core. The first valve seat is fixed to the first end and is sealingly abutted against the valve core. The second end is sealingly abutted against the first elastic seal. Along the axis of the first valve port, the first filter element further has a plurality of first filter holes arranged opposite to the first valve port; The second mounting assembly includes a second valve seat and a second filter element. Along the axis of the second valve port, the second filter element has a third end and a fourth end arranged oppositely. The third end faces the valve core. The second valve seat is fixed to the third end and is sealingly abutted against the valve core. The fourth end is sealingly abutted against the second elastic seal. Along the axis of the second valve port, the second filter element further has a plurality of second filter holes arranged opposite to the second valve port.

6. The control valve according to claim 1, wherein The regulating valve further includes a first valve rod and a second valve rod. Along the axis direction of the valve core, the valve body has a first mounting hole and a second mounting hole arranged oppositely. The first mounting hole and the second mounting hole both communicate with the valve chamber. The first valve rod is rotatably inserted through the first mounting hole and is fixedly connected to the valve core. The second valve rod is rotatably inserted through the second mounting hole and is fixedly connected to the valve core.

7. The control valve according to claim 6, characterized in that, A first groove is provided on the outer peripheral surface of the first valve stem, and a first seal is arranged in the first groove. Along the radial direction of the first valve stem, the first seal is abuttably installed between the first groove and the inner peripheral surface of the first mounting hole; A second groove is provided on the outer peripheral surface of the second valve stem, and a second seal is arranged in the second groove. Along the radial direction of the second valve stem, the second seal is abuttably installed between the second groove and the inner peripheral surface of the second mounting hole.

8. The regulating valve according to claim 7, characterized in that, The regulating valve further includes a first rolling bearing and a second rolling bearing. The first rolling bearing is arranged between the inner peripheral surface of the first mounting hole and the outer peripheral surface of the first valve stem, and the second rolling bearing is arranged between the inner peripheral surface of the second mounting hole and the outer peripheral surface of the second valve stem.

9. A water injection system, characterized in that, Comprising the regulating valve according to any one of claims 1-8.

10. A ship, characterized in that, Comprising the water injection system according to claim 9.

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