Pipeline self-operated flow regulating valve
By adopting a double parallel diaphragm design in the self-operated flow regulating valve, the pressure difference on the pressure diaphragm is mutually balanced, which solves the problem that traditional valves are susceptible to pressure fluctuations, improves adjustment accuracy and stability, and reduces energy consumption and production costs.
Patent Information
- Application Number
- CN202421202587.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-29
AI Technical Summary
Traditional self-operated flow regulating valves are easily affected by inlet and outlet pressure fluctuations when regulating flow, resulting in low adjustment accuracy.
A self-forced flow regulating valve of pipeline is designed, adopting a double parallel diaphragm design, with a pressure-sensitive diaphragm at the upper and lower ends of the valve plug. The pressure difference between the two diaphragms is opposite, which can balance each other and reduce the interference of pressure fluctuations. .
Through the double parallel diaphragm design, the valve plug works in a more stable state, reduces interference caused by pressure fluctuations, improves regulation accuracy, and is suitable for stabilizing and regulating the heating branch pipes in the home, reducing energy consumption, and controlling production costs. .
Smart Images
Figure CN222437138U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of flow control, in particular to a pipeline self-operated flow regulating valve. [Background technology]
[0002] Self-operated flow control valves are widely used in closed water circulation systems (such as hot water heating systems, air conditioning and refrigeration systems). Since they do not require external power drive, they are easy to use. At present, the self-operated flow control valve relies on the change of the pressure difference between the medium in the positive pressure chamber and the negative pressure chamber in the diaphragm head to move the diaphragm, thereby driving the valve core to produce relative displacement to the valve seat through the valve stem, until the feedback torque generated by the feedback spring offsets the medium pressure difference and stops the valve core from moving. According to this torque balance principle, the valve core produces corresponding resistance to the water flow, thereby achieving the purpose of regulating the flow. In traditional self-operated flow control valves, there is usually only one pressure-sensitive diaphragm, which is easily affected by inlet and outlet pressure fluctuations. [Contents of the utility model]
[0003] In view of the deficiencies in the prior art, the purpose of the present application is to provide a multifunctional helmet that has the function of reducing the interference caused by pressure fluctuations during self-regulation of the valve body and improving the adjustment accuracy.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A pipeline self-operated flow regulating valve comprises a valve body, wherein a first regulating component and a second regulating component are arranged in the valve body;
[0006] The valve body is provided with a water inlet chamber, a water outlet chamber and a connecting channel provided between the water inlet chamber and the water outlet chamber, the connecting channel is communicated with the water inlet chamber, and a valve port for communicating with the water outlet chamber is provided on the connecting channel;
[0007] The first regulating assembly includes a first pressure regulating chamber arranged at the bottom of the valve body, and the second regulating assembly includes a second pressure regulating chamber arranged at the top of the valve body. A valve plug is also slidably arranged in the valve body, and the valve plug can slide close to or away from the valve port to close or open the valve port.
[0008] The first pressure regulating chamber is communicated with the water inlet chamber and the connecting channel respectively, and the second pressure regulating chamber is communicated with the water inlet chamber and the connecting channel respectively. The first pressure regulating chamber and the second pressure regulating chamber are both configured to drive the valve plug to slide close to the valve port when the pressure of the water inlet chamber is greater than the pressure of the connecting channel.
[0009] The utility model is further configured as follows: a first elastic diaphragm sealedly connected to the inner wall of the first pressure regulating chamber is arranged in the first pressure regulating chamber, and the first elastic diaphragm is connected to the valve plug.
[0010] The utility model is further configured as follows: the first pressure regulating cavity is divided into a first cavity and a second cavity by the first elastic diaphragm, the first cavity is communicated with the water inlet cavity, and the second cavity is communicated with the connecting channel.
[0011] The utility model is further configured as follows: a second elastic diaphragm sealed and connected to the inner wall of the second pressure regulating chamber is arranged in the second pressure regulating chamber, and the second elastic diaphragm is connected to the valve plug.
[0012] The utility model is further configured as follows: the second pressure regulating cavity is divided into a third cavity and a fourth cavity by the second elastic diaphragm, the fourth cavity is communicated with the water inlet cavity, and the third cavity is communicated with the connecting channel.
[0013] The utility model is further configured as follows: a first elastic member is arranged between the valve body and the valve plug, and the first elastic member is used to drive the valve plug away from the valve port.
[0014] The utility model is further configured as follows: a second elastic member is arranged between the valve body and the valve plug, and the second elastic member is used for driving the valve plug away from the valve port.
[0015] The utility model is further configured as follows: a flexible sealing member is provided at the position of the valve plug that abuts against the valve port.
[0016] The utility model is further configured as follows: a portion of the valve plug that abuts against the valve port is provided with a plurality of throttling holes.
[0017] The utility model is further configured as follows: a flow control component for adjusting the size of a communication port communicating with the water inlet cavity is arranged on the connection channel.
[0018] Compared with the prior art, the utility model has the following advantages:
[0019] 1. The utility model is simple and practical, adopts a double parallel diaphragm design, and sets a pressure-sensitive diaphragm at the upper and lower ends of the valve plug. The pressure difference between the two diaphragms is opposite and can balance each other, so that the valve plug can work in a more stable state, reduce the interference caused by pressure fluctuations, and improve the adjustment accuracy.
[0020] 2. The utility model can realize the flow stabilization and flow regulation of the household heating branch pipe, avoid overheating and overcurrent, reduce energy consumption (gas and electricity consumption), and thus achieve the purpose of controlling production costs. Secondly, it can solve the hydraulic balance problem caused by the difference in apartment area among users on the same floor.
[0021] 3. The utility model is also provided with a flow control component, which can adjust the maximum flow rate that the valve body can circulate according to actual conditions, so as to better control the production cost according to actual needs and meet the application requirements of the system.
Brief Description of the Drawings
[0022] Figure 1 This is a diagram of the internal structure of the pipeline self-operated flow regulating valve of this embodiment.
[0023] Figure numerals: 1. valve body; 11. water inlet chamber; 111. water inlet; 12. water outlet chamber; 121. water outlet; 13. connecting channel; 14. slide; 21. first pressure regulating chamber; 211. first cavity; 212. second cavity; 22. second pressure regulating chamber; 221. third cavity; 222. fourth cavity; 3. valve plug; 31. plug; 32. flexible seal; 4. valve port; 51. first elastic diaphragm; 52. second elastic diaphragm; 6. flow control assembly. [Specific implementation method]
[0024] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.
[0025] It should be understood that the various steps described in the method implementation of the present utility model can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this respect.
[0026] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.
[0027] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0028] like Figure 1 As shown, the utility model discloses a pipeline self-operated flow regulating valve, comprising a valve body 1, in which a first regulating component and a second regulating component are arranged;
[0029] The valve body 1 is provided with a water inlet chamber 11, a water outlet chamber 12, and a connecting passage 13 provided between the water inlet chamber 11 and the water outlet chamber 12. The connecting passage 13 is communicated with the water inlet chamber 11, and a valve port 4 for communicating with the water outlet chamber 12 is provided on the connecting passage 13.
[0030] The first regulating assembly includes a first pressure regulating chamber 21 arranged at the bottom of the valve body 1, and the second regulating assembly includes a second pressure regulating chamber 22 arranged at the top of the valve body 1. A valve plug 3 is also slidably arranged in the valve body 1, and the valve plug 3 can slide close to or away from the valve port 4 to close or open the valve port 4.
[0031] The first pressure regulating chamber 21 is communicated with the water inlet chamber 11 and the connecting channel 13 respectively, and the second pressure regulating chamber 22 is communicated with the water inlet chamber 11 and the connecting channel 13 respectively. The first pressure regulating chamber 21 and the second pressure regulator are both configured to drive the valve plug 3 to slide close to the valve port 4 when the pressure of the water inlet chamber 11 is greater than the pressure of the connecting channel 13.
[0032] Among them, the water inlet chamber 11 in the valve body 1 is a chamber for communicating with the flow inlet, and a water inlet 111 is provided on one side of the valve body 1 where the water inlet chamber 11 is provided, and a connection structure for connecting with a pipeline is provided on the water inlet 111. The water outlet chamber 12 in the valve body 1 is a chamber for communicating with the flow outlet, and a water outlet 121 is provided on one side of the valve body 1 where the water outlet chamber 12 is provided, and a connection structure for connecting with a pipeline is provided on the water outlet 121. Specifically, the connection structures on the water inlet 111 and the water outlet 121 can be set as threaded connection structures. A connecting channel 13 is provided between the water inlet chamber 11 and the water outlet chamber 12 in the valve body 1, and the connecting channel 13 is directly connected with the water inlet chamber 11, and the connecting channel 13 is connected with the water outlet chamber 12 by providing a valve port 4, so that the flow rate flowing into the water outlet chamber 12 can be controlled by controlling the opening or closing of the valve port 4. A valve plug 3 is also slidably disposed in the valve body 1 , and the sliding of the valve plug 3 can be controlled to drive the valve plug 3 to slide closer to or away from the valve port 4 , thereby enabling the valve port 4 to be opened or closed.
[0033] Two groups of regulating components are provided in the valve body 1 of the present application. The first regulating component is provided at the bottom of the valve body 1, and includes a first pressure regulating chamber 21, which is respectively connected to the water inlet chamber 11 and the connecting channel 13, and can be simultaneously subjected to the water pressure applied by the water inlet chamber 11 and the connecting channel 13, and the first pressure regulating chamber 21 is configured to drive the valve plug 3 to slide close to the valve port 4 when the pressure of the water inlet chamber 11 is greater than the pressure of the connecting channel 13, so that when the pressure of the water inlet chamber 11 is too high, the valve plug 3 will be pushed close to the valve port 4, thereby reducing the flow rate that can flow through the valve port 4, so that the pressure in the connecting channel 13 is increased, and the effect of automatically regulating the flow rate of the water outlet chamber 12 is achieved. The second regulating assembly is arranged at the top of the valve body 1, and includes a second pressure regulating chamber 22. The second pressure regulating chamber 22 is also connected to the water inlet chamber 11 and the connecting channel 13 respectively, and can be simultaneously subjected to the water pressure applied by the water inlet chamber 11 and the connecting channel 13. The second pressure regulating chamber 22 is arranged to drive the valve plug 3 to slide close to the valve port 4 when the pressure of the water inlet chamber 11 is greater than the pressure of the connecting channel 13. When the pressure of the water inlet chamber 11 is too high, the valve plug 3 will be pushed close to the valve port 4, thereby reducing the flow rate that can flow through the valve port 4, so that the pressure in the connecting channel 13 increases, and the effect of automatically regulating the flow rate of the water outlet chamber 12 is achieved. The two groups of regulating assemblies are used to achieve mutual adjustment, and the position of the valve plug 3 is adjusted one up and one down, and then they can be balanced with each other, so that the valve plug 3 works in a more stable state, reducing the interference caused by water pressure fluctuations, and improving the adjustment accuracy.
[0034] Reference Figure 1As shown, in some possible embodiments, a first elastic diaphragm 51 sealedly connected to the inner wall of the first pressure regulating chamber 21 may be provided in the first pressure regulating chamber 21, and the first elastic diaphragm 51 will divide the interior of the first pressure regulating chamber 21 into two upper and lower cavities, namely, a first cavity 211 at the lower part and a second cavity 212 at the upper part. The first elastic diaphragm 51 is connected to the end of the valve plug 3, and then when the pressure of the first cavity 211 at the lower side is greater than the pressure of the second cavity 212 at the upper side, the valve plug 3 will be driven to slide upward to approach the valve port 4. Similarly, a second elastic diaphragm 52 sealedly connected to the inner wall of the second pressure regulating chamber 22 may be provided in the second pressure regulating chamber 22, and the second elastic diaphragm 52 will divide the interior of the second pressure regulating chamber 22 into two upper and lower cavities, namely, a third cavity 221 at the lower part and a fourth cavity 222 at the upper part. The second elastic diaphragm 52 is connected to the valve plug 3, and when the pressure of the fourth cavity 222 on the upper side is greater than the pressure of the third cavity 221 on the lower side, the valve plug 3 will be driven to slide downward to approach the valve port 4. At this time, it can be understood that the cavity in the first pressure regulating cavity 21 that is connected to the water inlet cavity 11 is located at the lower side, and the cavity in the second pressure regulator that is connected to the water inlet cavity 11 is located at the upper side, so that the two cavities are connected. Therefore, in this embodiment, the first cavity 211 in the first pressure regulating cavity 21 needs to be connected to the water inlet cavity 11, the second cavity 212 needs to be connected to the connecting channel 13, the fourth cavity 222 in the second pressure regulating cavity 22 needs to be connected to the water inlet cavity 11, and the third cavity 221 needs to be connected to the connecting channel 13. Therefore, when the pressure of the water inlet cavity 11 is greater than the pressure in the connecting channel 13, the first pressure regulating cavity 21 and the second pressure regulating cavity 22 can drive the valve plug 3 to move toward the valve port 4.
[0035] Reference Figure 1 As shown, the valve plug 3 can be set to a cylindrical structure, in which a plug head 31 for sealing against the valve port 4 is provided in the middle, and then the sliding connection between the valve plug 3 and the valve body 1 can be set to be provided in the valve body 1 with a slideway 14 for the valve plug 3 to slide, and the shape of the slideway 14 is adapted to the plug, and is cylindrical, and is respectively provided at the upper and lower parts of the valve plug 3. At the same time, the first elastic member and the second elastic member can also be correspondingly provided between the valve plug 3 and the first elastic diaphragm 51 and the second elastic diaphragm 52, and the first elastic member and the second elastic member can be specifically set to springs, and the first elastic diaphragm 51 and the second elastic diaphragm 52 can be provided with a mounting plate for resisting against the spring, so as to realize the installation of the first elastic member and the second elastic member.
[0036] Reference Figure 1As shown, in some preferred embodiments, a flexible seal 32 may be provided at the plug head 31 of the valve plug 3, so as to better abut against the valve port 4, so as to achieve a better sealing effect than the rigid contact between metals. Specifically, the flexible seal 32 may be a sealing ring made of a flexible material (such as PTFE, NBR, etc.).
[0037] In some possible implementations, a plurality of throttling holes may be provided at the plug head 31 of the valve plug 3. Compared with a single large throttling hole, this implementation can form multi-stage throttling, which can obtain a larger throttling pressure difference at the same opening, thereby improving the adjustment accuracy and sensitivity. At the same time, multi-stage throttling can also reduce the flow velocity at the throttling part, reducing noise and vibration.
[0038] In some possible implementations, the connection channel 13 may also be provided with a flow control component 6 for adjusting the size of the channel opening connected to the water inlet chamber 11. The flow control component 6 may be a throttle valve commonly used in the prior art, and the blocking valve may be adjusted by turning the adjusting screw to block the maximum flow that can flow from the water inlet chamber 11 to the connection channel 13, thereby manually adjusting the maximum flow to the water outlet chamber 12. Furthermore, a driving module for driving the blocking valve to move may also be provided. In this case, the flow control component 6 may be set as a throttle valve operated by electric control, and the driving module may be remotely controlled to remotely control the maximum flow that can flow through the pipeline self-operated flow regulating valve of the present application.
[0039] In summary, the pipeline self-operated flow control valve provided by the present application has the following beneficial effects:
[0040] The pipeline self-operated flow regulating valve of the utility model is provided with a structural design of two sets of upper and lower elastic diaphragms to balance the sliding of the valve plug 3, so that the valve plug 3 can work in a more stable state, reduce the interference caused by pressure fluctuations, and improve the adjustment accuracy. At the same time, the pipeline self-operated flow regulating valve of the utility model can be used for the flow stabilization and flow regulation of the household heating branch pipe, avoid overheating and overcurrent, reduce energy consumption (gas consumption and electricity consumption), so as to achieve the purpose of controlling production costs. Secondly, it can solve the hydraulic balance problem caused by the difference in apartment area among users on the same floor.
[0041] Some exemplary embodiments of the utility model are described above, but those skilled in the art will appreciate that changes may be made to these exemplary embodiments without departing from the principles or spirit of the utility model, and the scope of the utility model is defined by the claims and their equivalents.
Claims
1. A pipeline self-operated flow control valve, characterized in that: It comprises a valve body (1), wherein a first adjusting component and a second adjusting component are arranged in the valve body (1); The valve body (1) is provided with a water inlet chamber (11), a water outlet chamber (12), and a connecting channel (13) provided between the water inlet chamber (11) and the water outlet chamber (12); the connecting channel (13) is in communication with the water inlet chamber (11), and a valve port (4) for communicating with the water outlet chamber (12) is provided on the connecting channel (13); The first regulating assembly comprises a first pressure regulating chamber (21) arranged at the bottom of the valve body (1), and the second regulating assembly comprises a second pressure regulating chamber (22) arranged at the top of the valve body (1). A valve plug (3) is also slidably arranged in the valve body (1), and the valve plug (3) can slide towards or away from the valve port (4) to close or open the valve port (4). The first pressure regulating chamber (21) is communicated with the water inlet chamber (11) and the connecting channel (13) respectively, and the second pressure regulating chamber (22) is communicated with the water inlet chamber (11) and the connecting channel (13) respectively. The first pressure regulating chamber (21) and the second pressure regulating chamber are both configured to drive the valve plug (3) to slide close to the valve port (4) when the pressure of the water inlet chamber (11) is greater than the pressure of the connecting channel (13).
2. The pipeline self-operated flow control valve according to claim 1 is characterized in that: A first elastic diaphragm (51) is provided in the first pressure regulating chamber (21) and is sealed to the inner wall of the first pressure regulating chamber (21); the first elastic diaphragm (51) is connected to the valve plug (3).
3. The pipeline self-operated flow control valve according to claim 2 is characterized in that: The first pressure regulating chamber (21) is divided into a first chamber (211) and a second chamber (212) by the first elastic diaphragm (51); the first chamber (211) is connected to the water inlet chamber (11), and the second chamber (212) is connected to the connecting channel (13).
4. The pipeline self-operated flow control valve according to claim 1, characterized in that: A second elastic diaphragm (52) is provided in the second pressure regulating chamber (22) and is sealed to the inner wall of the second pressure regulating chamber (22); the second elastic diaphragm (52) is connected to the valve plug (3).
5. The pipeline self-operated flow regulating valve according to claim 4, characterized in that: The second pressure regulating chamber (22) is divided into a third chamber (221) and a fourth chamber (222) by the second elastic diaphragm (52); the fourth chamber (222) is connected to the water inlet chamber (11); and the third chamber (221) is connected to the connecting channel (13).
6. The pipeline self-operated flow regulating valve according to claim 3, characterized in that: A first elastic member is provided between the valve body (1) and the valve plug (3), and the first elastic member is used to drive the valve plug (3) away from the valve port (4).
7. The pipeline self-operated flow control valve according to claim 5, characterized in that: A second elastic member is provided between the valve body (1) and the valve plug (3), and the second elastic member is used to drive the valve plug (3) away from the valve port (4).
8. The pipeline self-operated flow regulating valve according to claim 1, characterized in that: A flexible sealing member (32) is provided at the portion of the valve plug (3) that abuts against the valve port (4).
9. The pipeline self-operated flow regulating valve according to claim 1, characterized in that: The valve plug (3) is provided with a plurality of throttling holes at a position where it abuts against the valve port (4).
10. The pipeline self-operated flow regulating valve according to claim 1, characterized in that: The connecting channel (13) is provided with a flow control component (6) for adjusting the size of a communication port connected to the water inlet chamber (11).