CN111271507A - Single-valve-element multifunctional valve and function adjusting method thereof - Google Patents
Single-valve-element multifunctional valve and function adjusting method thereof Download PDFInfo
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- CN111271507A CN111271507A CN202010224298.XA CN202010224298A CN111271507A CN 111271507 A CN111271507 A CN 111271507A CN 202010224298 A CN202010224298 A CN 202010224298A CN 111271507 A CN111271507 A CN 111271507A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention provides a single-valve-element multifunctional valve and an adjusting method thereof. The method comprises the following steps: the multifunctional valve comprises a valve cover, a valve body, an adjusting rod, a valve rod, a locking nut, a valve core, a valve sleeve, a limiting sleeve and a spring, wherein the valve cover is detachably fixed on the valve body, the valve sleeve is arranged inside the valve body, the valve core is arranged at the lower part inside the valve sleeve, the limiting sleeve is arranged at the upper part inside the valve sleeve, the spring is arranged inside the valve core, the upper end of the spring is connected with the valve rod, the valve rod is in end surface contact with the adjusting rod, the adjusting rod penetrates through the valve cover, the locking nut matched with the adjusting rod is arranged at the upper end of the valve cover and used for fixing the adjusting rod at a preset position, the multifunctional valve is adjusted to be a stop function, a. The invention utilizes the technology of integrating the functions of the stop valve, the forward throttling reverse check valve, the adjustable opening pressure one-way valve and the safety valve into a whole by utilizing the single valve core, the single valve rod and the single spring, and has wide application.
Description
Technical Field
The invention relates to the technical field of fluid transmission, in particular to a single-valve-element multifunctional valve and a function adjusting method thereof.
Background
Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). Check valves, also known as check valves or back valves, are used in hydraulic systems to prevent reverse flow of oil or in pneumatic systems to prevent reverse flow of compressed air. A throttle valve is a valve that controls the flow of fluid by changing the throttle section or throttle length. The stop valve depends on the pressure of the valve rod to make the sealing surface of the valve core tightly attached to the sealing surface of the valve seat to prevent the medium from flowing. The safety valve is a special valve, wherein the opening and closing part is in a normally closed state under the action of spring force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value. The valves are common valves in the prior art, and each valve only has unique characteristics and has no general applicability.
Disclosure of Invention
In view of the above-mentioned technical problems, a single-spool multifunctional valve and a function adjusting method thereof are provided. The technical means adopted by the invention are as follows:
a single-spool multifunctional valve comprising: the multifunctional valve comprises a valve cover, a valve body, a valve core, a valve sleeve, a limiting sleeve and a valve rod, and further comprises an adjusting rod, a locking nut and a spring, wherein the valve cover is detachably fixed on the valve body, the contact part of the lower part of the valve sleeve and the valve core is equivalent to a valve seat, the valve sleeve is arranged in the valve body, the valve core is arranged at the lower part in the valve sleeve, the limiting sleeve is arranged at the upper part in the valve sleeve, the spring is arranged in the valve core, the upper end of the spring is connected with the valve rod, the adjusting rod penetrates through the valve cover, the valve rod is in end surface contact with the adjusting rod, the locking nut matched with the adjusting rod is arranged at the upper end part of the; A. the opening degree of the opening B is smaller than the function of a forward throttling reverse check valve of the maximum stroke of the valve core; the opening pressure of the check valve or the safety valve is adjustable, wherein the limiting sleeve is used for limiting the maximum opening degree of the valve core, and the number of the adjusting rod, the valve core and the spring is one.
Furthermore, the lower part of the spring is guided by an inner hole of the valve core, and the upper part of the spring is guided by the valve rod.
Furthermore, the compression amount of a spring in the valve core is set by driving the position of the valve rod by an adjusting rod; the limiting sleeve limits the maximum opening of the valve port, and when the valve is used as a one-way valve or a safety valve, the maximum opening of the valve port of the valve is not changed when the opening pressure is adjusted.
The invention also provides a function adjusting method of the single-valve-core multifunctional valve, specifically, the maximum stroke of the valve core is S0, the maximum stroke of the valve rod is H0, and H0 is greater than S0, and the specific function adjusting method comprises the following steps:
the regulation to the cutoff function is specifically as follows: the adjusting hand wheel moves downwards to drive the valve rod to move downwards, the valve rod acts on the lowest end in the valve core to tightly press the valve core on the valve seat, and the valve is closed and is in a complete stop state;
the forward throttling reverse non-return function is specifically as follows: the adjusting hand wheel is used for adjusting the rod to move upwards from the stop function position by H, so that the valve rod is driven to move upwards from the stop function position by H < S0, when the pressure difference of a valve port A, B is greater than the set spring force, the valve core is opened upwards, the spring is compressed, the valve is opened, the opening degree is equal to the stroke S of the valve core, and the throttling function is realized; when the pressure difference of the opening of the valve A, B is smaller than the set spring force, the valve is in a complete cut-off state;
adjustment to a one-way or safety valve function: the adjusting hand wheel moves the adjusting rod upwards from the stop function H, the spring drives the valve rod to move upwards from the stop function position H, S0< H < H0, and when the pressure difference of the A, B port is smaller than the set spring force, the valve port is closed; when the pressure difference of the A, B ports is larger than the set spring force, the valve port is opened, the maximum opening degree limited by the limiting sleeve is equal to the maximum stroke S0 of the valve core, and the function of the check valve or the safety valve with adjustable opening pressure is realized.
The multifunctional valve adjusts 1) the multifunctional valve to realize the one-way flow and simultaneously has the throttling function by adjusting the distance of the adjusting rod protruding out of the valve cover; 2) the pressure limiting valve is used as a one-way valve or a safety valve for pressure limiting; 3) when the device is overhauled, the device is manually closed, and the medium on the side which is not overhauled is prevented from leaking. The invention realizes the technology of integrating multiple functions by using a single valve core, a single valve rod and a single spring, and has wide application. The valve opening pressure can be adjusted, and the weakening of the elasticity of the spring can be compensated or the optimal opening pressure can be adjusted by increasing the pretightening force.
Based on the reasons, the invention can be widely popularized in the technical field of fluid transmission.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a state diagram of a check valve in a shut-off function in the embodiment of the present invention.
Fig. 2 is a state diagram of the check valve in the forward throttling and reverse check functions according to the embodiment of the invention.
Fig. 3 is a state diagram of the check valve in the check valve or the relief valve function in the embodiment of the present invention.
In the figure: 1. adjusting a rod; 2. a valve stem; 3. a spring; 4. a valve core; 5. a valve housing; 6. a valve cover; 7. a valve body; 8. a limiting sleeve; 9. a hand wheel; 10. a nut; 11. locking the nut; 12. a bolt; 13. a gasket; 14. a first seal ring; 15. a second seal ring; 16. a third seal ring; 17. and a fourth seal ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present embodiment discloses a single-spool multifunctional valve, which includes: the valve comprises a valve cover 6, a valve body 7, a valve core 4, a valve sleeve 5, a limiting sleeve 8, a valve rod 2, an adjusting rod 1, a locking nut 11 and a spring 3, wherein the valve cover 6 is detachably fixed on the valve body 7 through a bolt 12, and a gasket 13 is arranged between the valve cover and the valve body 7. The contact part of the lower part of the valve sleeve 5 and the valve core 4 is equivalent to a valve seat, the valve sleeve 5 is arranged in the valve body 7, the valve core 4 is arranged at the lower part in the valve sleeve 5, the limiting sleeve 8 is arranged at the upper part in the valve sleeve 5, the spring 3 is arranged in the valve core 4, the upper end of the spring is connected with the valve rod 2, the lower part of the adjusting spring 3 is guided by an inner hole of the valve core 4, and the upper part. The adjusting rod 1 penetrates through the valve cover 6, the valve rod 2 is contacted with the end face of the adjusting rod 1, the locking nut 11 matched with the adjusting rod 1 is arranged at the upper end part of the valve cover 6 and used for fixing the adjusting rod 1 at a preset position, and the multifunctional valve is adjusted to have a cut-off function of completely blocking A, B opening media from flowing by adjusting the distance of the adjusting rod 1 protruding out of the valve cover 6; A. the opening degree of the opening B is smaller than the function of a forward throttling reverse check valve of the maximum stroke of the valve core; the pressure-adjustable one-way valve or the safety valve has the function of adjustable pressure, wherein the limiting sleeve 8 is used for limiting the maximum opening degree of the valve core, and the number of the adjusting rod, the valve core and the spring is one.
The upper end of the adjusting rod is connected with a hand wheel 9, and the hand wheel 9 is fixed by a nut 10 after the relative position of the adjusting rod 1 and the hand wheel 9 is determined.
And a sealing structure is arranged between the valve body 7 and the valve cover 5, and specifically comprises a second sealing ring 15 between the valve cover 5 and the valve cover 6, a third sealing ring 16 between the side wall of the valve cover 5 and the valve body 7, and a fourth sealing ring 17 between the valve cover base and the valve body 7.
The valve core 4 and the limiting sleeve 8 are matched with the valve sleeve 5, the outside of the limiting sleeve 8 is fastened through the valve sleeve 5, the lower end of the limiting sleeve is used for limiting the maximum stroke of the valve core, and a pore channel is arranged in the valve core 4.
A first sealing ring 14 is arranged between the valve rod 2 and the valve cover 6.
The maximum stroke of the valve core 4 is S0, the maximum stroke of the valve rod 2 is H0, H0> S0, and FIG. 1 shows a cut-off function. Specifically, the adjusting hand wheel 9 is adjusted, the adjusting rod 1 moves downwards to drive the valve rod 2 to move downwards, the valve rod 2 acts on the lowest end inside the valve core 4, the valve core 4 is tightly pressed on a valve seat at the lower end of the valve sleeve 5, the valve is closed and is in a complete stop state, and the valve can be kept in the function by screwing the locking nut 11.
Fig. 2 shows the forward throttling and reverse check functions. The stroke H of the valve rod 2 is less than the maximum stroke S0 of the valve core 4, namely H < S0.
The positions of the spool and stem in fig. 1 are referenced. And the adjusting hand wheel 9 is used for adjusting the rod 1 to move upwards H from the stop function position and driving the valve rod 2 to move upwards H from the stop function position. When the pressure difference at the port A, B is larger than the set spring force, the valve core 4 is opened upwards, the spring 3 is compressed, the valve is opened, the opening degree is equal to the valve core stroke S, and S is less than S0, so that the throttling function is realized. When the pressure difference at port A, B is smaller than the set spring force, the valve core 4 is pressed on the lower end valve seat of the valve sleeve 5, and the valve is closed and is in a complete cut-off state. This achieves a throttling function, which is maintained by tightening the union nut 11 after the adjustment has been completed.
Fig. 3 shows a one-way or safety valve function, achieving a set pressure between a maximum and a minimum pressure.
The stroke H of the valve rod 2 is larger than the maximum stroke S0 of the valve core 4 and smaller than the maximum stroke H0 of the valve rod 2, namely S0< H < H0.
The positions of the spool and stem in fig. 1 are referenced. And when the pressure difference of the A, B port is less than the set spring force, the valve core 4 is pressed on the valve seat at the lower end of the valve sleeve 5, the valve is closed, and the valve is in a complete cut-off state. When the pressure difference of the A, B ports is larger than the set spring force, the valve core 4 is opened upwards, the spring 3 is compressed, the valve is completely opened, the opening degree is equal to the maximum stroke S0 of the valve core, and the function of the one-way valve is realized. The valve can also be used as a safety valve because the opening pressure is adjustable. The regulating hand wheel 9, when the regulating rod 1 moves up H0 from the stop function position, realizes the function of the minimum opening pressure check valve or the safety valve. When the control rod 1 is moved upwards from the blocking position S0, the maximum opening pressure check valve or safety valve function is realized, and after the control is completed, the valve is held in this function by tightening the union nut 11.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A single-spool multifunctional valve comprising: the multifunctional valve is characterized by further comprising an adjusting rod, a locking nut and a spring, wherein the valve cover is detachably fixed on the valve body, the contact part of the lower part of the valve cover and the valve core is equivalent to a valve seat, the valve cover is arranged in the valve body, the valve core is arranged at the lower part in the valve cover, the limiting sleeve is arranged at the upper part in the valve cover, the spring is arranged in the valve core, the upper end of the spring is connected with the valve rod, the adjusting rod penetrates through the valve cover, the valve rod is in end surface contact with the adjusting rod, the locking nut matched with the adjusting rod is arranged at the upper end part of the valve cover and used for fixing the adjusting rod at a preset position, and the multifunctional valve is adjusted to have a stop function of completely; A. the opening degree of the opening B is smaller than the function of a forward throttling reverse check valve of the maximum stroke of the valve core; the opening pressure of the check valve or the safety valve is adjustable, wherein the limiting sleeve is used for limiting the maximum opening degree of the valve core, and the number of the adjusting rod, the valve core and the spring is one.
2. The single spool multifunctional valve of claim 1, wherein the spring is guided by the spool bore at a lower portion and by the stem at an upper portion.
3. The single spool multifunctional valve according to claim 1, wherein the spring compression of the spring in the spool is set by the position of the valve stem driven by the adjusting rod; the limiting sleeve limits the maximum opening of the valve port, and when the valve is used as a one-way valve or a safety valve, the maximum opening of the valve port of the valve is not changed when the opening pressure is adjusted.
4. The method for adjusting the function of a single-spool multifunctional valve according to any one of claims 1 to 3, wherein the maximum stroke of the spool is S0, the maximum stroke of the valve rod is H0, and H0> S0, and the method for adjusting the function comprises the following steps:
the regulation to the cutoff function is specifically as follows: the adjusting hand wheel moves downwards to drive the valve rod to move downwards, the valve rod acts on the lowest end in the valve core to tightly press the valve core on the valve seat, and the valve is closed and is in a complete stop state;
the forward throttling reverse non-return function is specifically as follows: the adjusting hand wheel is used for adjusting the rod to move upwards from the stop function position by H, so that the valve rod is driven to move upwards from the stop function position by H < S0, when the pressure difference of a valve port A, B is greater than the set spring force, the valve core is opened upwards, the spring is compressed, the valve is opened, the opening degree is equal to the stroke S of the valve core, and the throttling function is realized; when the pressure difference of the opening of the valve A, B is smaller than the set spring force, the valve is in a complete cut-off state;
adjustment to a one-way or safety valve function: the adjusting hand wheel moves the adjusting rod upwards from the stop function H, the spring drives the valve rod to move upwards from the stop function position H, S0< H < H0, and when the pressure difference of the A, B port is smaller than the set spring force, the valve port is closed; when the pressure difference of the A, B ports is larger than the set spring force, the valve port is opened, the maximum opening degree limited by the limiting sleeve is equal to the maximum stroke S0 of the valve core, and the function of the check valve or the safety valve with adjustable opening pressure is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010224298.XA CN111271507B (en) | 2020-03-26 | 2020-03-26 | Single-valve-core multifunctional valve and function adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010224298.XA CN111271507B (en) | 2020-03-26 | 2020-03-26 | Single-valve-core multifunctional valve and function adjusting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111271507A true CN111271507A (en) | 2020-06-12 |
| CN111271507B CN111271507B (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010224298.XA Active CN111271507B (en) | 2020-03-26 | 2020-03-26 | Single-valve-core multifunctional valve and function adjusting method thereof |
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| Country | Link |
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| CN (1) | CN111271507B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112472882A (en) * | 2020-11-26 | 2021-03-12 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Thoracentesis drainage device |
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| CN2437909Y (en) * | 2000-05-29 | 2001-07-04 | 梁海明 | Multifunctional intelligent opening-and-closing stop valve |
| US20050145809A1 (en) * | 2004-01-05 | 2005-07-07 | Wen-Tsong Lee | Multifunctional valve device |
| CN102588635A (en) * | 2011-07-21 | 2012-07-18 | 天津市国威给排水设备制造有限公司 | Return stop valve |
| CN203258122U (en) * | 2013-05-31 | 2013-10-30 | 宁波永享铜管道有限公司 | Non-return stop valve |
| CN104896155A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop check valve for industrial refrigeration |
| CN205155182U (en) * | 2015-11-27 | 2016-04-13 | 安徽杰克耐腐泵阀有限公司 | By dual -purpose valve of non return |
| CN211820974U (en) * | 2020-03-26 | 2020-10-30 | 一重集团大连工程技术有限公司 | Single-spool multifunctional valve |
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2020
- 2020-03-26 CN CN202010224298.XA patent/CN111271507B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2437909Y (en) * | 2000-05-29 | 2001-07-04 | 梁海明 | Multifunctional intelligent opening-and-closing stop valve |
| US20050145809A1 (en) * | 2004-01-05 | 2005-07-07 | Wen-Tsong Lee | Multifunctional valve device |
| CN102588635A (en) * | 2011-07-21 | 2012-07-18 | 天津市国威给排水设备制造有限公司 | Return stop valve |
| CN203258122U (en) * | 2013-05-31 | 2013-10-30 | 宁波永享铜管道有限公司 | Non-return stop valve |
| CN104896155A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop check valve for industrial refrigeration |
| CN205155182U (en) * | 2015-11-27 | 2016-04-13 | 安徽杰克耐腐泵阀有限公司 | By dual -purpose valve of non return |
| CN211820974U (en) * | 2020-03-26 | 2020-10-30 | 一重集团大连工程技术有限公司 | Single-spool multifunctional valve |
Non-Patent Citations (1)
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| 李云超: "多功能水力控制阀在钢厂供水系统中的应用", 企业技术开发, no. 06 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112472882A (en) * | 2020-11-26 | 2021-03-12 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Thoracentesis drainage device |
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| Publication number | Publication date |
|---|---|
| CN111271507B (en) | 2023-08-01 |
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