Medium self-regulation type self-operated valve
By designing a self-operated valve, through the combination of the main valve core and the auxiliary valve core assembly, and utilizing the medium self-regulating self-operated valve, the problem of inaccurate flow control in the transportation of high-temperature media is solved, and the precise regulation of the medium flow and safe filling are achieved.
Patent Information
- Application Number
- CN202511172949.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2025-10-17
AI Technical Summary
During the transportation of high-temperature media, existing self-operated valves are difficult to accurately control the medium flow, resulting in incomplete filling or overflow of the medium, affecting the efficient operation of the storage tank.
A medium self-regulating self-operated valve is designed. Through the combination of the main valve core and the auxiliary valve core assembly, the flow rate is automatically adjusted by the medium pressure. Combined with the adjustment structure of the elastic part and the spring, precise control of the medium flow is achieved.
It realizes the precise adjustment of flow rate under different medium pressures, avoids the flow control of the medium, adapts to a wider range of use environments, and improves the accuracy and safety of medium filling.
Smart Images
Figure CN120799121A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of self-operated valves, in particular to a medium self-regulating self-operated valve. BACKGROUND
[0002] The self-operated pressure regulating valve does not need external energy and can work in places without electricity and gas, which is convenient and energy-saving. In the prior art, the opening degree of the valve core is usually adjusted and controlled by the pressure before and after the valve. In some special working conditions (such as high-temperature medium production lines), in order to reduce the temperature of the medium in the storage tank and prolong the storage period of the medium, a circulating cooling liquid level is usually introduced into the interlayer of the tank, and a storage tank is usually arranged away from the medium production line to avoid the high-temperature environment of the production line, which is not conducive to reducing the storage temperature of the medium in the tank. When the high-temperature medium is transported to the rated storage tank, the pressure in the valve body increases due to the passage of the high-temperature medium. When the medium is transported to the storage tank through the valve body and the pipeline, the pressure and temperature of the medium decrease due to the long pipeline. If the pressure in the storage tank is greater than the pressure in the valve body, the pressure after the valve is greater than the pressure before the valve, and the valve core is closed by the pressure after the valve, which easily causes the medium in the storage tank to be not filled. If the pressure in the storage tank is less than the pressure in the valve body, the pressure before the valve is greater than the pressure after the valve, and the valve core is always in an open state, which easily causes the medium in the storage tank to be overfilled or overflowed, so that the flow of the medium cannot be accurately controlled. Therefore, a medium self-regulating self-operated valve is proposed. SUMMARY
[0003] The present application aims at solving the above problems and provides a medium self-regulating self-operated valve.
[0004] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a medium self-regulating self-operated valve, comprising a valve body, a valve cover installed on the valve body, a bracket installed on the valve cover, and a valve rod installed in one end of the valve body; characterized in that one end of the valve rod is fixedly installed with a main valve core, a plurality of small flow channels arranged on the main valve core, and a vice valve core assembly slidably installed and matched with the small flow channels to realize small flow adjustment; the valve rod is adjustably installed with an adjusting seat for adjusting the opening pressure of the main valve core and the vice valve core assembly, respectively, and an elastic member and a spring one installed between the adjusting seat and the vice valve core assembly and on the vice valve core assembly, respectively; the vice valve core assembly comprises an adjusting plate slidably installed on the valve rod and a plurality of small valve cores arranged on the adjusting plate in a circle and matched with the small flow channels on the main valve core; the small valve cores are arranged with different lengths to meet the opening of different numbers of small flow channels under different medium pressures, so as to achieve the adjustment of different flow sizes.
[0005] The inner wall of the small flow channel and the small valve core are provided with a polytetrafluoroethylene layer.
[0006] The valve rod is further provided with a limiting boss for preventing the rotation of the adjusting plate.
[0007] The adjusting plate is provided with a limiting groove matched with the limiting boss.
[0008] The spring upper fixing plate is movably installed on the bracket corresponding to the adjusting seat, and the spring is installed between the adjusting seat and the spring upper fixing plate.
[0009] The adjusting seat comprises a lower spring base, a spring upper seat connected with the lower spring base, and a sealing element installed on the valve cover to seal between the lower spring base and the valve cover.
[0010] The valve rod is further provided with an external thread matched with the lower spring base.
[0011] The valve rod and the valve cover are further provided with a packing, the packing is provided with a packing pressing plate fixed on the valve cover, and the valve body is further provided with a valve seat matched with the main valve core.
[0012] The beneficial effects of the present application are as follows: the main valve core is fixedly installed on one end of the valve rod, the auxiliary valve core assembly is movably installed, the small valve cores with different lengths on the auxiliary valve core assembly and the main valve core are opened according to the pressure of the medium to open the number of small valve cores or open the large valve core together, so that the medium can control the flow according to its own pressure, thereby accurately controlling the flow of the filling medium to meet the capacity of the medium filling; By rotating the adjusting seat on the valve rod, the height of the adjusting seat is adjusted, and the pressure of the elastic element and the spring I is adjusted by the adjusting seat, so that the pressure of the elastic element and the spring I is adjusted at the same time, the convenience of adjustment is improved, and more use environments are adapted. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the present application.
[0014] Figure 2 It is a partial enlarged view of A in the present application. Figure 1
[0015] Figure 3 It is a partial structural schematic diagram of the present application.
[0016] Figure 4 It is a structural schematic diagram of the auxiliary valve core assembly of the present application.
[0017] Figure 5 It is a structural schematic diagram of the main valve core of the present application.
[0018] Figure 6 Figure 1 is a structural schematic diagram of the valve stem of the present application.
[0019] Figure 1 is a structural schematic diagram of the valve stem of the present application. DETAILED DESCRIPTION
[0020] In the following, we will combine Figures 1-6 The medium self-regulating self-force valve of the present application is further described.
[0021] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture as shown in the drawings, and if the certain posture changes, the directional indications will also change accordingly.
[0022] Participate Figures 1-6 As shown in the drawings, the medium self-regulating self-force valve of the present application comprises a valve body 1, a valve cover 2 installed on the valve body 1 through bolts, a bracket 3 installed on the valve cover 2, and a valve stem 4 installed in the valve body 1 at one end; characterized in that one end of the valve stem 4 is fixedly installed with a main valve core 6 through threads, a plurality of small flow passages 601 arranged on the main valve core 6, and a vice valve core assembly 7 for realizing small flow adjustment slidably installed and adapted to the small flow passages 601; the valve stem 4 is adjustably installed with an adjusting seat 8 for adjusting the opening pressure of the main valve core 6 and the vice valve core assembly 7, respectively, and an elastic member 9 and a spring I 10 installed between the adjusting seat 8 and the vice valve core assembly 7 and on the vice valve core assembly 7, respectively; the elastic member 9 is a rotary spring, and the elastic member 9 and the spring I 10 have corrosion resistance; the vice valve core assembly 7 comprises an adjusting plate 701 slidably installed on the valve stem 4 and a plurality of small valve cores 702 arranged in a circle on the adjusting plate 701 and adapted to and sealed with the small flow passages 601 on the main valve core 6; the small valve cores 702 are arranged with different lengths; the main valve core 6 is fixedly installed at one end of the valve stem 4, and the vice valve core assembly 7 is movably installed, the small valve cores 702 with different lengths on the vice valve core assembly 7 and the main valve core 6 open the number of small valve cores 702 according to the pressure of the medium itself or open the large valve core together, so that the medium can control the flow according to its own pressure, thereby accurately controlling the flow of the filling medium, and meeting the capacity of the medium filling; By setting the length of the small valve core 702 on the adjusting plate 701 to be different, the small valve core 702 can open different numbers of small flow channels on the main valve core 6 according to different medium pressures, so that the medium can adjust the flow according to its different pressure, and the range of use is expanded.
[0023] By rotating the adjusting seat 8 on the valve stem 4, the height of the adjusting seat 8 is adjusted, and the pressure of the elastic member 9 and the spring 10 is adjusted at the same time, so that the pressure of the elastic member 9 and the spring 10 can be adjusted at the same time, the convenience of adjustment is improved, and more use environments are adapted.
[0024] Participate Figure 4-Figure 5 As shown, the inner wall of the small flow channel 601 and the small valve core 702 are provided with a polytetrafluoroethylene layer; the valve stem 4 is also provided with a limiting boss 401 for preventing the adjusting plate 701 from rotating; the adjusting plate 701 is provided with a limiting groove 703 matched with the limiting boss 401; by matching the limiting groove 703 on the adjusting plate 701 with the limiting boss 401 on the valve stem 4, the adjusting plate 701 slides along the limiting boss 401 when the small valve core 702 is opened, which guides the sliding of the adjusting plate 701 and limits the radial direction of the adjusting plate 701, preventing the adjusting plate 701 from rotating during sliding; by using the pressure of the medium flowing into the small flow channel 601 on the main valve core 6 to push the small valve core 702 upward, the small valve core 702 drives the adjusting plate 701 to move upward along the limiting boss 401 on the valve stem 4, so that the small valve core is opened, thereby facilitating the use of the valve under small flow conditions; by providing the inner wall of the small flow channel 601 and the small valve core 702 with a polytetrafluoroethylene layer, the sealing between the small flow channel 601 and the small valve core 702 is improved, and the smoothness of the small valve core 702 sliding along the small flow channel 601 is also improved.
[0025] Participate Figure 1-Figure 3As shown, the spring upper fixing plate 301 is movably installed on the bracket 3 corresponding to the adjusting seat 8, and the spring one 10 is installed between the adjusting seat 8 and the spring upper fixing plate 301; the adjusting seat 8 comprises a lower spring base 801, a spring upper seat 802 connected with the lower spring base 801 through a screw, and a sealing element 803 installed on the valve cover 2 and sealing between the lower spring base 801 and the valve cover 2; the sealing element 803 has corrosion resistance and wear resistance; by rotating the lower spring base 801, the lower spring base 801 drives the spring upper seat 802 to move downward, and the elastic element 9 between the spring upper seat 802 and the adjusting plate 701 is compressed, at the same time, the spring one 10 pushes the lower spring base 801 downward by using the elasticity of the spring one 10, so that the opening pressure of the main valve core 6 is increased and the opening pressure of the valve core 702 is reduced, or vice versa, the opening pressure of the main valve core 6 is reduced and the opening pressure of the valve core 702 is increased, and the convenience of adjustment is improved; at the same time, the sealing element 803 improves the sealing between the base 801 and the valve cover 2.
[0026] participate Figure 1 As shown, the filler 201 is installed on the filler pressing plate 202 fixed on the valve cover 2; the valve rod 4 is also provided with an outer thread 402 matched with the lower spring base 801; and the valve body 1 is also installed with the valve seat 101 matched with the main valve core 6.
[0027] In the use process of the present application, by rotating the lower spring base 801, the lower spring base 801 drives the spring upper seat 802 to move downward, and the elastic element 9 between the spring upper seat 802 and the adjusting plate 701 is compressed, at the same time, the spring one 10 pushes the lower spring base 801 downward by using the elasticity of the spring one 10, so that the opening pressure of the main valve core 6 is increased and the opening pressure of the valve core 702 is reduced, or vice versa, the opening pressure of the main valve core 6 is reduced and the opening pressure of the valve core 702 is increased, and the convenience of adjustment is improved; at the same time, the sealing element 803 improves the sealing between the base 801 and the valve cover 2. When in use, the medium enters the inside of the valve body 1, and then flows into the small flow channels 601 on the main valve body 1. When the pressure of the medium in the small flow channels 601 is greater than the pressure of the elastic member 9, the medium pushes the small valve core 702 to move upward, the small valve core 702 pushes the adjusting plate 701 to move upward along the limiting boss 401 on the valve rod 4, and at the same time, the elastic member 9 is compressed. First, the shortest small valve core 702 is separated from the small flow channel 601. With the increase of the pressure of the medium in the valve body 1, the number of the small flow channels 601 opened by the small valve core 702 increases, until all the small valve cores are opened. When the pressure of the medium entering the valve body 1 continues to increase, and is greater than the pressure of the spring 10, the medium pushes the main valve core 6 to move upward, the main valve core 6 pushes the valve rod 4 to move upward, the valve rod 4 drives the lower spring base 801 to move upward, the lower spring base 801 drives the spring upper seat to move upward, and the spring 10 is compressed. At this time, the large flow carries out medium filling in the storage tank. When the pressure in the storage tank is greater than the pressure in the valve body 1, the pressure behind the valve is greater than the pressure in front of the valve. The pressure behind the valve pushes the adjusting plate 701 to move downward, the adjusting plate 701 drives the small valve core 702 to move downward. First, the longest small valve core 702 is in contact with the corresponding small flow channel 601 to close. With the increase of the pressure behind the valve, until all the small valve cores 702 are closed, and until the main valve core 6 is also closed, the flow of the medium gradually decreases with the increase of the pressure behind the valve, and the storage tank is filled. When the pressure in the storage tank is less than the pressure in the valve body 1, when the storage tank is about to be filled, the operator only needs to control the opening of the gate valve in front of the valve to gradually reduce the flow of the medium entering the valve body 1, and then gradually reduce the pressure of the medium in the valve body 1. The spring 10 and the reset pressure push the main valve core 6 to move downward until it is closed, and then the elastic member 9 pushes the adjusting plate 701 to move downward, the adjusting plate 701 drives the small valve core 702 to move downward. First, the longest small valve core 702 is in contact with the corresponding small flow channel 601 to close. With the decrease of the pressure of the medium, until all the small valve cores 702 are closed, and then the size of the flow is adjusted according to the pressure of the medium itself, and the storage tank is filled.
[0028] The above examples are illustrative of the present application and are not limiting of the present application. Any simple transformation of the present application belongs to the protection scope of the present application.
Claims
1. A medium self-regulating self-operated valve, comprising a valve body, a valve cover mounted on the valve body, a bracket mounted on the valve cover, and a valve stem with one end mounted in the valve body; One end of the valve stem is fixedly equipped with a main valve core, a plurality of small flow channels arranged on the main valve core, and a sub-valve core assembly that is slidably installed and adapted to the small flow channels to achieve small flow regulation; the valve stem is adjustably equipped with an adjusting seat for adjusting the opening pressure of the main valve core and the sub-valve core assembly respectively, and an elastic member and a spring that are respectively installed between the adjusting seat and the sub-valve core assembly and on the sub-valve core assembly; the sub-valve core assembly includes an adjusting plate slidably mounted on the valve stem and a small valve core circumferentially arranged on the adjusting plate and adapted to seal the small flow channels on the main valve core; the lengths of the small valve cores are different to meet the opening of different numbers of small flow channels by the small valve core under different medium pressures, thereby achieving regulation of different flow sizes.
2. A medium self-regulating self-operated valve according to claim 1, characterized in that: The inner wall of the small flow channel and the small valve core are both provided with a polytetrafluoroethylene layer.
3. A medium self-regulating self-operated valve according to claim 1, characterized in that: The valve stem is also provided with a limiting boss for preventing the regulating plate from rotating.
4. A medium self-regulating self-operated valve according to claim 3, characterized in that: The adjusting plate is provided with a limiting groove adapted to the limiting boss.
5. The medium self-regulating self-operated valve according to claim 1, characterized in that: A spring upper fixing plate is adjustably mounted on the bracket corresponding to the adjusting seat, and the spring is mounted between the adjusting seat and the spring upper fixing plate.
6. A medium self-regulating self-operated valve according to claim 5, characterized in that: The regulating seat comprises a lower spring seat, a spring upper seat connected to the lower spring seat, and a sealing member installed on the valve cover to seal between the lower spring seat and the valve cover.
7. A medium self-regulating self-operated valve according to claim 6, characterized in that: The valve stem is also provided with an external thread adapted to the lower spring base.
8. The medium self-regulating self-operated valve according to claim 1, characterized in that: A packing is installed between the valve stem and the valve cover; a packing pressure plate fixed on the valve cover is installed on the packing; and a valve seat adapted to the main valve core is installed in the valve body.