CN109751426B - Dynamic flow balance valve - Google Patents
Dynamic flow balance valve Download PDFInfo
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- CN109751426B CN109751426B CN201910163238.9A CN201910163238A CN109751426B CN 109751426 B CN109751426 B CN 109751426B CN 201910163238 A CN201910163238 A CN 201910163238A CN 109751426 B CN109751426 B CN 109751426B
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Abstract
The invention provides a dynamic flow balance valve which comprises a valve body and a valve cover arranged on the valve body, wherein the valve cover is in sealing connection with the valve body through a first sealing element; the valve body is provided with a liquid inlet and a liquid outlet; the valve is characterized by further comprising a main valve core assembly, an auxiliary valve core assembly, a first valve seat and a second valve seat. The main spool assembly includes a main stem and a main spool. The auxiliary valve core assembly comprises an auxiliary valve rod and an auxiliary valve core. The auxiliary stem penetrates through the first hole and extends into the main stem, and the main stem and the auxiliary stem are coaxially arranged; the first valve seat and the second valve seat are respectively arranged inside the valve body. The inner valve core for controlling flow balance is coaxially arranged inside the outer valve core for controlling the opening and closing of the valve, so that the volume and the weight of the valve can be reduced; the valve body is convenient to process and manufacture; the valve can be disassembled and assembled efficiently, and is convenient to maintain and repair.
Description
Technical Field
The invention relates to the field of fluid control, in particular to a dynamic flow balance valve.
Background
In industrial pipelines, and in order to maintain pipeline flow constant, dynamic flow balancing valves are typically installed in the pipelines. The dynamic flow balance valve mainly depends on the pressure difference acting on the valve core to realize the opening change of the valve core and the valve seat to control the flow, thereby realizing the constant flow of the pipeline.
The existing dynamic flow balance valve is characterized in that a valve core for controlling flow balance and a main valve core for controlling the opening and closing of a valve are respectively arranged on the upper side and the lower side of a valve body; the cavity for generating the pressure difference is arranged on the outer side of the valve body, and a plurality of groups of flow guide pipes exist, so that the valve body is large in size and inconvenient to install. The structure in the valve body cavity is complex, which is not beneficial to the problems of the valve body processing and manufacturing, complex installation of each component of the valve and the like, therefore, in view of the above, the dynamic flow balance valve with a new structure is designed.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the volume and the weight of the valve are reduced, and the valve body processing and manufacturing and the assembly and disassembly of all parts in the valve are facilitated.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the dynamic flow balance valve comprises a valve body and a valve cover arranged on the valve body, wherein the valve cover is in sealing connection with the valve body through a first sealing element; the valve body is provided with a liquid inlet and a liquid outlet; the valve is characterized by further comprising a main valve core assembly, an auxiliary valve core assembly, a first valve seat and a second valve seat. The main spool assembly includes a main stem and a main spool. The main stem comprises a main stem which is of a tubular structure; one end of the main stem is provided with an upper connecting part which is used for being connected with a driver for driving the main valve core assembly to move; the other end of the main stem is provided with a lower connecting part, and the lower connecting part is hermetically connected with the main valve core; the main valve core and the main rod stem are coaxially arranged. The axial line position of the main valve core is provided with a first hole, a second hole and a third hole which are sequentially arranged in a stepped manner, and the inner diameter size of the first hole, the inner diameter size of the second hole and the inner diameter size of the third hole are sequentially increased; a plurality of fourth holes are formed in the peripheral wall of the main valve core, and each fourth hole is communicated with the second hole; the main valve element is provided with a sealing end.
The auxiliary valve core assembly comprises an auxiliary valve rod and an auxiliary valve core. The auxiliary valve rod comprises an auxiliary rod stem, and a first lantern ring and a second lantern ring which is slidably mounted on the outer wall of the auxiliary rod stem are mounted at one end of the auxiliary rod stem in a threaded mode; a spring is arranged between the first sleeve ring and the second sleeve ring; the other end of the auxiliary stem is provided with a stem shoulder, and the diameter of the stem shoulder is larger than that of the auxiliary stem; the end part of the rod shoulder is provided with a rod head, and the diameter of the rod head is larger than that of the rod shoulder. The end of the auxiliary valve core is provided with a disc hole, the rod head is connected in the disc hole, and the auxiliary rod stem and the auxiliary valve core are coaxially arranged; and the end part of the auxiliary valve core is provided with a throttling end.
The auxiliary stem penetrates through the first hole and extends into the main stem, the stem shoulder is installed in the second hole in a sliding and sealing mode, and the main stem and the auxiliary stem are coaxially arranged.
A plurality of check rings for sealing are arranged between the outer wall of the auxiliary rod stem and the inner wall of the first hole; the second hole, the retainer ring, the fourth hole and the rod shoulder form a pressure cavity, and the outer ring of the second sleeve ring is installed on the inner wall of the main rod stem in a threaded mode.
The outer wall of the main stem is in sealing and sliding connection with the valve cover through a second sealing piece.
The first valve seat and the second valve seat are respectively arranged in the valve body, the first valve seat and the second valve seat are coaxially arranged, and an intermediate cavity is formed between the first valve seat and the second valve seat; the first valve seat is coaxially arranged with the main valve core, and the sealing end is arranged opposite to the sealing surface of the first valve seat; the second valve seat and the auxiliary valve core are coaxially arranged, the throttling end and the sealing surface of the second valve seat are oppositely arranged, and the auxiliary valve core is arranged in the middle cavity.
The main valve core, the first valve seat and the liquid inlet end form an upper cavity, and the second valve seat and the liquid outlet end form a lower cavity.
Preferably, main stem inner wall is provided with first installation department, install a plurality of stable circles in the first installation department, every stable circle respectively with vice stem outer wall connects.
Preferably, a second mounting part is arranged at the connecting end of the main stem and the main valve element, the second mounting part is of a groove-shaped structure, a third sealing element is mounted in the groove-shaped structure, and the third sealing element is fixed to the main valve element and is arranged at the orifice of the first hole; the third sealing element is of a circular ring structure, and the diameter of the inner ring of the circular ring structure is smaller than that of the first hole; the inner ring of the third sealing element is connected with the stem peripheral wall of the auxiliary rod.
Preferably, an end groove is arranged at the end part of the main valve core, and the end groove is of an annular structure; a sleeve is arranged at the end of the auxiliary valve core, which faces the main valve core, and the sleeve is of a cylindrical structure, and a plurality of door holes are formed in the peripheral wall of the cylindrical structure; a pressing ring is arranged at the end part of the sleeve; the sleeve is slidably mounted in the end groove.
Preferably, a plug is mounted at the end of the fourth hole.
Preferably, the distance from the second valve seat to the auxiliary valve spool is adjustable.
The invention has the advantages that the inner valve core for controlling flow balance is coaxially arranged inside the outer valve core for controlling the opening and closing of the valve, and the balance cavity and the diversion hole are respectively arranged in the outer valve core, thereby reducing the volume and the weight of the valve; the inner valve core and the outer valve core are arranged in a centralized manner, so that the internal structure of the valve body can be reduced, and the valve body is convenient to process and manufacture; the combined valve core can be installed outside the valve body as an assembly and then installed with the valve body, so that the disassembly and assembly efficiency of the valve can be improved, and the valve is convenient to maintain and repair.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a valve closed state structure provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of an open state of a main valve element of the valve according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an open state of a valve secondary spool according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of a main poppet assembly provided by an embodiment of the present invention;
FIG. 5 is a schematic structural view of a secondary spool assembly provided by an embodiment of the present invention;
in the figure: 1-valve body, 1.1-liquid inlet, 1.2-liquid outlet, 2-valve cover, 3-main valve element assembly, 310-main valve stem, 311-upper connecting part, 312-main stem, 313-first mounting part, 314-second mounting part, 315-lower connecting part, 320-main valve element, 321-first hole, 322-second hole, 323-third hole, 324-fourth hole, 325-end groove, 326-sealing end, 4-auxiliary valve element assembly, 410-auxiliary valve stem, 411-first collar, 412-spring, 413-second collar, 414-retainer ring, 415-stem shoulder, 416-stem head, 417-auxiliary stem, 420-auxiliary valve element, 421-disc hole, 423-throttling end, 430-sleeve, 431-door hole, 440-a clamping ring, 5-a first valve seat,
6-first sealing element, 7-second sealing element, 8-third sealing element, 9-stabilizing ring, 10-second valve seat, a-upper chamber, b-middle chamber, c-lower chamber and d-pressure chamber.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It is to be understood that these examples are for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
As shown in fig. 1-3, in a specific embodiment, a dynamic flow balance valve includes a valve body 1 and a valve cover 2, where the valve body 1 is provided with a liquid inlet 1.1 and a liquid outlet 1.2; the valve further comprises a main valve core component 3 used for controlling the valve body to open and close, an auxiliary valve core component 4 used for controlling the flow to be constant, a first valve seat 5 matched with the main valve core component 3 for use, and a second valve seat 10 matched with the auxiliary valve core component 4 for use.
As shown in fig. 4, the main valve spool assembly 3 includes a main valve stem 310 and a main valve spool 320, the main valve stem 310 is used to pull the main valve spool 320 to reciprocate, and the distance between the main valve spool 320 and the first valve seat 5 is adjusted to realize the opening and closing of the valve.
As shown in fig. 4, the main valve stem 310 includes a main stem 312 having a tubular structure, an upper connection portion 311 is disposed at one end of the main stem 312, and the upper connection portion 311 is connected to a driver for driving the main valve element assembly 3 to reciprocate, so as to achieve automatic valve control. The other end of the main stem 312 is provided with a lower connecting part 315, the lower connecting part 315 is hermetically connected with the main valve element 320, so that the main valve rod 310 and the main valve element 320 are installed, and the main valve element 320 and the main stem 312 are coaxially arranged after installation, which is favorable for improving the sealing degree of the valve.
As shown in fig. 4, a first hole 321, a second hole 322 and a third hole 323 which are arranged in a stepped manner in sequence are formed on the axis of the main valve element 320, and the inner diameter of the first hole 321, the inner diameter of the second hole 322 and the inner diameter of the third hole 323 are increased in sequence; the main valve element 320 has a plurality of fourth holes 324 formed in a peripheral wall thereof, and each of the fourth holes 324 penetrates the second hole 322.
As shown in fig. 5, the auxiliary valve core assembly 4 includes an auxiliary valve rod 410 and an auxiliary valve core 420, wherein the auxiliary valve rod 410 is used for pulling the auxiliary valve core 420 to reciprocate, so that the auxiliary valve core 420 is used in cooperation with the second valve seat 10.
As shown in fig. 5, the secondary valve stem 410 comprises a secondary stem 417, a first collar 411 is threadedly mounted on one end of the secondary stem 417, and the position of the first collar 411 can be adjusted along the axial direction of the secondary stem 417 through threaded transmission; a second sleeve ring 413 is further installed at one end of the auxiliary stem 417, the second sleeve ring 413 can slide along the axial direction of the auxiliary stem 417, and the inner ring of the second sleeve ring 413 is in clearance fit with the outer diameter of the auxiliary stem 417; a spring 412 is installed between the first collar 411 and the second collar 413, and the spring 412 is a compression spring, and two ends of the spring 412 are respectively connected to the first collar 411 and the second collar 413, so that the compression of the spring 412 can be realized by fixing one of the first collar 411 or the second collar 413 and adjusting the other one. The other end of the auxiliary stem 417 is provided with a stem shoulder 415, and the diameter of the stem shoulder 415 is larger than that of the auxiliary stem 417; the end of the shoulder 415 is provided with the rod head 146, and the diameter of the rod head 146 is larger than that of the shoulder 415, so that the subsidiary stem 417, the shoulder 415 and the rod head 146 form a stepped shaft structure.
As shown in fig. 5, a disk hole 421 is opened at the end of the auxiliary valve core 420, the rod head 146 is screwed into the disk hole 421, so that the auxiliary rod stem 417 is connected with the auxiliary valve core 420, and the auxiliary rod stem 417 and the auxiliary valve core 420 are coaxially arranged after connection.
The main valve core assembly 3 and the auxiliary valve core assembly 4 are installed, as shown in fig. 1-3, the outer ring of the second collar 413 is installed on the inner wall of the main stem 312 in a threaded mode; then, one end of the auxiliary stem 417 is extended into the main stem 312 through the first hole 321, the spring 412 is installed at the end, and the spring 412 is installed between the first collar 411 and the second collar 413 through the first collar 411; by adjusting the mounting position of the second collar 413 in the main stem 312, the stem shoulder 415 is slidably and hermetically mounted in the second hole 322, and after the mounting, the main stem 312 and the auxiliary stem 417 are coaxially arranged, so that the connection sealing performance and the relative movement fluency of the main valve element 320 and the auxiliary valve element 420 can be improved. In order to improve the sealing performance between the outer wall of the auxiliary stem 417 and the inner wall of the first hole 321 and improve the guiding performance of the auxiliary stem 417 in the first hole 321, a plurality of retaining rings 414 are arranged between the outer wall of the auxiliary stem 417 and the inner wall of the first hole 321, and the retaining rings 414 are made of elastic and wear-resistant materials. As can be seen from the above description, the rod shoulder 415 is slidably and hermetically installed in the second hole 322, and the outer wall of the secondary stem 417 is hermetically disposed with the inner wall of the first hole 321, so that the retainer ring 414, the fourth hole 324 and the rod shoulder 415 form a pressure chamber d.
In the using process, as shown in fig. 1-3, in order to prevent the secondary stem 417 from swinging due to overlength in the primary stem 312, a first mounting portion 313 is disposed on the inner wall of the primary stem 312, a plurality of stabilizing rings 9 are mounted in the first mounting portion 313, and each stabilizing ring 9 is connected with the outer wall of the secondary stem 417, so as to centralize and guide the secondary stem 417.
In use, as shown in fig. 1-3, in order to prevent the stabilizing ring 9 from slipping out of the opening of the first hole 321 and ensure that the plurality of stabilizing rings 9 are in complete contact with the inner wall of the first hole 321, the stabilizing ring 9 needs to be limited; the limiting mode is that a second mounting part 314 for placing a third sealing element 8 is arranged at the connecting end of the main stem 312 and the main valve element 320, the second mounting part 314 is of a groove-shaped structure, the third sealing element 8 is mounted in the groove-shaped structure, and the third sealing element 8 is fixed on the main valve element 320 through a screw and is arranged at the hole of the first hole 321; the third sealing element 8 is a circular ring structure, and the diameter of the inner ring of the circular ring structure is smaller than the diameter of the first hole 321; the inner ring of the third seal member 8 is connected to the peripheral wall of the sub-stem 417, and the bearing force of the stabilizing ring 9 can be increased.
The main shaft 312 is mounted to the valve cap 2, and as shown in fig. 1 to 3, the main shaft 312 penetrates the valve cap 2, such that the outer wall of the main shaft 312 is sealed and slidably connected to the valve cap 2 by the second sealing member 7.
The valve seat is mounted with the valve body, as shown in fig. 1-3, the first valve seat 5 and the second valve seat 10 are respectively mounted inside the valve body 1, and the joint with the valve body 1 is sealed, so that the first valve seat 5 and the second valve seat 10 are coaxially arranged, and an intermediate cavity b is formed between the first valve seat 5 and the second valve seat 10.
The valve body and the valve cover are installed, as shown in fig. 1-3, the valve cover 2 is installed on the valve body 1, the valve body 1 and the valve cover 2 can be connected in a flange or thread mode, the joint of the valve cover 2 and the valve body 1 is sealed through a first sealing element 6, and the first sealing element 6 can be a rubber ring or a graphite gasket.
After the valve cover 2 and the valve body 1 are installed, the first valve seat 5 and the main valve core 320 are coaxially arranged, the main valve core 320 is provided with a sealing end 326, the sealing end 326 is arranged opposite to the sealing surface of the first valve seat 5, the second valve seat 10 and the auxiliary valve core 420 are coaxially arranged, and the end part of the auxiliary valve core 420 is provided with a throttling end 423; the throttling end 423 is arranged opposite to the sealing surface of the second valve seat 10; the secondary spool 420 is disposed between the first valve seat 5 and the second valve seat 10 to form an intermediate chamber b.
The main valve core 320, the first valve seat 5 and the liquid inlet 1.1 form an upper chamber a, and the second valve seat 10 and the liquid outlet 1.2 form a lower chamber c.
In the using process, as shown in fig. 1-5, in order to avoid the secondary valve core 420 from shaking caused by water flow impact and improve the stability of the end part, the end part of the main valve core 320 is provided with an end groove 325 with an annular structure; a sleeve 430 with a cylindrical structure is arranged at the end of the auxiliary valve core 420 facing the main valve core 320, a plurality of gate holes 431 for liquid flowing are arranged on the peripheral wall of the sleeve, a pressing ring 440 is arranged at the end part of the sleeve 430, and the pressing ring 440 can play a role of sealing; the sleeve 430 is slidably mounted in the end groove 325, so that the auxiliary valve element 420 can be stabilized and guided by the connection, and the usability and stability are further improved.
In order to make the valve perform the function of a throttle valve, as shown in fig. 1-5, a plug may be installed at the end of the fourth hole 324, and the plug may prevent fluid from entering the second hole 322, so that there is no pressure in the pressure chamber d, and the secondary valve element 420 is not pushed, therefore, there is only the function of the first valve seat 5 and the primary valve element 320 cooperating to open and close the valve.
To facilitate the adjustment of the valve fixed flow, the distance from the second valve seat 10 to the secondary spool 420 may be adjusted as shown in fig. 1-3. When the distance between the main valve element 320 and the first valve seat 5 increases within a predetermined range, the distance between the sub valve element 420 and the second valve seat 10 increases, and the installation position of the second valve seat 10 in the valve body 1 needs to be adjusted to keep the distance between the sub valve element 420 and the second valve seat 10 constant, thereby realizing a function of accurately controlling the flow rate.
The working principle is as follows: enabling the fluid to flow to a liquid outlet 1.2 through a liquid inlet 1.1 by pipeline pressure; when the opening degrees of the first valve seat 5 and the main valve element 320 are fixed, the flow rate is constant under the condition that the pipeline pressure is not changed, constant differential pressure is generated between the upper cavity a and the middle cavity b, and the distance between the auxiliary valve element 420 and the second valve seat 10 is inconvenient, namely the opening degree is inconvenient under the condition that the differential pressure between the upper cavity a and the middle cavity b is changed; when the pressure in the pipe increases, the pressure in the pressure chamber d also increases, and when the pressure in the pressure chamber d increases to be greater than the elastic force of the spring 412, the pressure in the pressure chamber d can push the auxiliary valve core assembly 4 to move towards the second valve seat 10, so that the opening between the auxiliary valve core 420 and the second valve seat 10 is reduced, and the functions of throttling and controlling the flow are realized. Conversely, when the line pressure decreases and increases, the pressure in the pressure chamber d also decreases, and the pressure in the pressure chamber d is smaller than the elastic force of the spring 412, the thrust of the spring 412 moves the auxiliary spool assembly 4 in the direction away from the second valve seat 10, so that the opening between the auxiliary spool 420 and the second valve seat 10 is increased, and the control flow rate is constant. The thrust of the spring 412 can be controlled by screwing the first collar 411, so that the second collar 413 and the first collar 411 compress the spring 412 or extend the spring 412, so that the elasticity of the spring 412 is increased or decreased, and the force for driving the movement of the secondary valve core 420 is controlled.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A dynamic flow balance valve comprises a valve body and a valve cover arranged on the valve body, wherein the valve cover is in sealing connection with the valve body through a first sealing element; the valve body is provided with a liquid inlet and a liquid outlet; the valve is characterized by further comprising a main valve core assembly, an auxiliary valve core assembly, a first valve seat and a second valve seat;
the main valve element assembly comprises a main valve rod and a main valve element;
the main stem comprises a main stem which is of a tubular structure; one end of the main stem is provided with an upper connecting part which is used for being connected with a driver for driving the main valve core assembly to move; the other end of the main stem is provided with a lower connecting part, and the lower connecting part is hermetically connected with the main valve core; the main valve core and the main stem are coaxially arranged;
the axial line position of the main valve core is provided with a first hole, a second hole and a third hole which are sequentially arranged in a stepped manner, and the inner diameter size of the first hole, the inner diameter size of the second hole and the inner diameter size of the third hole are sequentially increased; a plurality of fourth holes are formed in the peripheral wall of the main valve core, and each fourth hole is communicated with the second hole; the main valve core is provided with a sealing end;
the auxiliary valve core assembly comprises an auxiliary valve rod and an auxiliary valve core;
the auxiliary valve rod comprises an auxiliary rod stem, and a first lantern ring and a second lantern ring which is slidably mounted on the outer wall of the auxiliary rod stem are mounted at one end of the auxiliary rod stem in a threaded mode; a spring is arranged between the first sleeve ring and the second sleeve ring; the other end of the auxiliary stem is provided with a stem shoulder, and the diameter of the stem shoulder is larger than that of the auxiliary stem; the end part of the rod shoulder is provided with a rod head, and the diameter of the rod head is larger than that of the rod shoulder;
the end of the auxiliary valve core is provided with a disc hole, the rod head is connected in the disc hole, and the auxiliary rod stem and the auxiliary valve core are coaxially arranged; the end part of the auxiliary valve core is provided with a throttling end;
the auxiliary stem penetrates through the first hole and extends into the main stem, the stem shoulder is installed in the second hole in a sliding and sealing mode, and the main stem and the auxiliary stem are coaxially arranged;
a plurality of check rings for sealing are arranged between the outer wall of the auxiliary rod stem and the inner wall of the first hole; the second hole, the retainer ring, the fourth hole and the rod shoulder form a pressure cavity;
the outer wall of the main stem is in sealing and sliding connection with the valve cover through a second sealing element;
the first valve seat and the second valve seat are respectively arranged in the valve body, the first valve seat and the second valve seat are coaxially arranged, and an intermediate cavity is formed between the first valve seat and the second valve seat; the first valve seat is coaxially arranged with the main valve core, and the sealing end is arranged opposite to the sealing surface of the first valve seat; the second valve seat and the auxiliary valve core are coaxially arranged, the throttling end is arranged opposite to the sealing surface of the second valve seat, and the auxiliary valve core is arranged in the middle cavity;
the main valve core, the first valve seat and the liquid inlet end form an upper cavity, and the second valve seat and the liquid outlet end form a lower cavity.
2. The dynamic flow balance valve of claim 1 wherein said main stem inner wall is provided with a first mounting portion, said first mounting portion having a plurality of stabilizing rings mounted therein, each of said stabilizing rings being connected to said secondary stem outer wall.
3. A dynamic flow balance valve as claimed in claim 1, wherein the end of said main stem connected to said main spool is provided with a second mounting portion, said second mounting portion being of channel-shaped configuration, said channel-shaped configuration receiving a third sealing member, said third sealing member being secured to said main spool and disposed at the mouth of said first bore; the third sealing element is of a circular ring structure, and the diameter of the inner ring of the circular ring structure is smaller than that of the first hole; the inner ring of the third sealing element is connected with the stem peripheral wall of the auxiliary rod.
4. A dynamic flow balance valve as claimed in claim 1 wherein said main spool end is provided with an end groove, said end groove being of annular configuration; a sleeve is arranged at the end of the auxiliary valve core, which faces the main valve core, and the sleeve is of a cylindrical structure, and a plurality of door holes are formed in the peripheral wall of the cylindrical structure; a pressing ring is arranged at the end part of the sleeve; the sleeve is slidably mounted in the end groove.
5. The dynamic flow balance valve of claim 1 wherein a plug is mounted to the end of said fourth bore.
6. A dynamic flow balancing valve as claimed in claim 1, wherein the distance from the second valve seat to the secondary spool is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910163238.9A CN109751426B (en) | 2019-03-05 | 2019-03-05 | Dynamic flow balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910163238.9A CN109751426B (en) | 2019-03-05 | 2019-03-05 | Dynamic flow balance valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109751426A CN109751426A (en) | 2019-05-14 |
| CN109751426B true CN109751426B (en) | 2020-06-26 |
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| CN201910163238.9A Active CN109751426B (en) | 2019-03-05 | 2019-03-05 | Dynamic flow balance valve |
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| CN (1) | CN109751426B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113623457A (en) * | 2020-05-09 | 2021-11-09 | 中国石油天然气集团有限公司 | Throttle valve |
| JP7449844B2 (en) * | 2020-11-27 | 2024-03-14 | 株式会社鷺宮製作所 | electric valve |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103303B (en) * | 1985-05-04 | 1988-10-26 | 哈尔滨铁路局减速顶调速系统研究中心 | Controllable accelerating jack |
| RU2092736C1 (en) * | 1992-02-19 | 1997-10-10 | Юрий Николаевич Пушин | Electromagnetic valve |
| CN204533655U (en) * | 2014-12-05 | 2015-08-05 | 重庆市朗泰机械有限公司 | A kind of Spool assembly of driven valve |
| CN205401831U (en) * | 2016-03-11 | 2016-07-27 | 上海嘉迪机械有限公司 | Vacuum cross valve of mechanical type |
| CN206972960U (en) * | 2017-03-17 | 2018-02-06 | 永康市良工阀门有限公司 | A kind of double spool flow throttling ball valves |
| CN206637046U (en) * | 2017-03-29 | 2017-11-14 | 王志刚 | It may filter that formula single-seat adjusting valve |
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Effective date of registration: 20200605 Address after: No. 130-2, Xinan, Guanting village, Shapu Town, Fuqing City, Fuzhou City, Fujian Province Applicant after: He Shiwang Address before: 114031 122 buildings at Shuguang Road, Lishan District, Anshan City, Liaoning Province Applicant before: Wang Chaohe |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230330 Address after: Unit 101, 1st Floor, Building B5, Dengjun Digital City Phase II, No. 39 Xile Avenue East, Leping Town, Sanshui District, Foshan City, Guangdong Province, 528000 (Residence Declaration) Patentee after: Foshan Suge Fluid Equipment Co.,Ltd. Address before: 130-2, Xinan, Guanting Village, Shapu Town, Fuqing City, Fuzhou City, Fujian Province, 350322 Patentee before: He Shiwang |