High-precision dynamic flow balance valve

Abstract

The utility model discloses a high-precision dynamic flow balance valve, which relates to the technical field of balance valves and comprises an electric actuator, a balance valve component is arranged below the electric actuator, and two flow pressure monitoring meters are arranged on the front surface and the rear surface of the top of the balance valve component. The front portion and the rear portion of the balance valve assembly are in threaded connection with two external assemblies. According to the high-precision dynamic flow balance valve, the threaded plastic inner layer fixedly connected to the outer surface of the mounting opening achieves the effect that a connecting water pipe is not rusted after being used for a long time, and later mounting and dismounting are affected, meanwhile, a mounting groove ring formed in the inner wall of an externally-connected threaded block is used for assisting mounting of a damper and a second spring, and the service life of the damper and the second spring is prolonged. The external threaded block is connected with an external water pipe through the threaded plastic inner layer, applies pressure to the rubber ring and transmits the pressure to the first springs and the hard rubber ring, and the damper and the second spring are used for achieving the effects of extruding and buffering the pressure and improving the sealing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of balancing valves, in particular to a high-precision dynamic flow balancing valve. Background Art

[0002] At present, a large number of dynamic flow balancing valves of foreign imported brands generally adopt integrated assembly. This high-precision automatic flow balancing valve is not convenient for later inspection, maintenance and cleaning. After long-term operation, it leads to decreased control accuracy and increased energy consumption. The dynamic flow balancing valve is also called self-operated flow control valve, self-operated balancing valve, constant flow valve, automatic balancing valve, etc. It automatically changes the resistance coefficient according to the changes in system operating conditions. Within a certain pressure difference range, it can effectively control the flow rate to maintain a constant value, that is, when the pressure difference before and after the valve increases, the automatic closing action of the valve can keep the flow rate from increasing. Conversely, when the pressure difference decreases, the valve automatically opens and the flow rate remains constant.

[0003] For example, the Chinese patent with publication number CN103742688B discloses a high-precision dynamic flow balancing valve, including a valve core assembly and a valve cover installed on a valve body. The valve core assembly is composed of a valve core, a valve core housing, a spring, and a locking screw. The valve core is provided with an end surface fixed hole and a symmetrical side flow channel on both sides. The side flow channel includes two evenly distributed fixed elliptical holes and two or four evenly distributed variable holes. The two fixed elliptical holes are respectively connected to two symmetrically distributed variable holes one by one. The high-precision dynamic flow balancing valve of the present invention has a simple structure, a small volume, good valve core stiffness performance, convenient processing, and cost saving.

[0004] The existing technology has the following problems:

[0005] However, it did not solve the problem that the high-precision dynamic flow balancing valve has a low degree of automation and requires frequent manual intervention, which increases labor costs and operation and maintenance costs. It also did not solve the problem that the high-precision dynamic flow balancing valve is prone to rust over a long period of time when connected to an external water pipe and that unexpected factors may cause connection leakage. Utility Model Content

[0006] The utility model provides a high-precision dynamic flow balancing valve to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A high-precision dynamic flow balancing valve comprises an electric actuator, a balancing valve assembly is arranged below the electric actuator, two flow pressure monitoring gauges are arranged on the front and rear surfaces of the top of the balancing valve assembly, and two external components are connected to the front and rear threads of the balancing valve assembly.

[0009] Preferably: the balancing valve assembly includes a high-precision dynamic flow balancing valve body, the top front and rear surfaces of the high-precision dynamic flow balancing valve body are arranged at the bottom of two flow pressure monitoring gauges, the top of the high-precision dynamic flow balancing valve body is arranged at the bottom of the electric actuator, the outer surface of the high-precision dynamic flow balancing valve body is fixedly connected to two outer fixing plates at the front and rear, and the two outer fixing plates are located between the two flow pressure monitoring gauges, and the two outer fixing plates are provided with mounting holes on the left and right sides.

[0010] Preferably, the high-precision dynamic flow balancing valve body is provided with threaded shafts at the front and rear ends, and the outer surfaces of the front and rear threaded shafts are threadedly connected to the outer surfaces of two external components.

[0011] Preferably, a plurality of mounting holes 2 are provided around the front and rear threaded shafts, and sealants are fixedly connected around the bottom of the inner walls of the front and rear threaded shafts.

[0012] Preferably: the external component includes an external threaded block and a rubber ring, the rear outer surface of the external threaded block is threadedly connected to the inner wall of the threaded shaft, the front of the external threaded block is provided with a mounting opening, the front of the external threaded block is provided with a plurality of mounting holes three and the plurality of mounting holes three are located around the front of the mounting opening, and the outer surface of the mounting opening is fixedly connected with a threaded plastic inner layer.

[0013] Preferably, the inner wall of the externally connected threaded block is provided with a mounting groove ring, the bottom of the inner wall of the mounting groove ring is fixedly connected with a plurality of dampers, and the outer surfaces of the plurality of dampers are movably sleeved with springs 2.

[0014] Preferably, the output ends of the plurality of dampers are fixedly connected with a hard rubber ring, the inner wall of the hard rubber ring is connected with a plurality of springs 1 around, and the outer surface of the rubber ring is fixedly connected with the surfaces of the plurality of springs 1 around.

[0015] Preferably, the outer surface of the rubber ring is slidably connected to the inner wall of the mounting groove ring, and the height of the rubber ring at the mounting opening is higher than the height of the inner layer of the threaded plastic.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a high-precision dynamic flow balancing valve, which feeds back to the electric actuator in the form of current signals to control the opening of the valve to the high-precision dynamic flow balancing valve body, thereby realizing balanced control of the flow in the pipeline, realizing automatic adjustment without manual operation, and realizing remote control, thereby improving the accuracy of flow regulation. At the same time, it is easy to maintain and has a high degree of automation, which can effectively reduce the number of manual interventions, reduce labor costs and operation and maintenance costs, and at the same time, the two flow and pressure monitoring meters arranged on the front and rear surfaces of the top of the high-precision dynamic flow balancing valve body can facilitate the observation of the front and rear flow and pressure data, and facilitate the recording and intuitive comparison.

[0018] 2. The utility model provides a high-precision dynamic flow balancing valve, which is connected to the water pipe by a threaded plastic inner layer fixedly connected to the outer surface of the installation port. It will not rust after long-term use, which will affect the later installation and disassembly. At the same time, the installation groove ring opened on the inner wall of the external threaded block is used to assist the installation of the damper and the spring 2, so that the external threaded block uses the connection between the threaded plastic inner layer and the external water pipe to apply pressure to the rubber ring, and the pressure is transmitted to a plurality of springs 1 and hard rubber rings. The damper and spring 2 are used to squeeze the buffer pressure and improve the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is an enlarged structural diagram of the balancing valve assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the external component of the utility model;

[0022] Figure 4 It is a schematic diagram of the enlarged structure of the hard rubber ring of the utility model;

[0023] Figure 5 For the utility model Figure 4 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1. Electric actuator; 2. Balancing valve assembly; 21. High-precision dynamic flow balancing valve body; 22. Outer fixing plate; 23. Mounting hole one; 24. Threaded shaft; 25. Mounting hole two; 26. Sealant; 3. Flow pressure monitoring gauge; 4. External assembly; 41. External threaded block; 42. Mounting hole three; 43. Mounting port; 44. Threaded plastic inner layer; 45. Mounting groove ring; 46. Rubber ring; 47. Spring one; 48. Hard rubber ring; 49. Damper; 410. Spring two. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 As shown, a high-precision dynamic flow balancing valve includes an electric actuator 1, a balancing valve assembly 2 is arranged below the electric actuator 1, two flow pressure monitoring gauges 3 are arranged on the top front and rear surfaces of the balancing valve assembly 2, and the front and rear threads of the balancing valve assembly 2 are connected to two external components 4.

[0027] The balancing valve assembly 2 assists the electric actuator 1, the two flow and pressure monitoring meters 3 and the two external components 4 to be stably installed at the predetermined positions.

[0028] like Figure 2 As shown, the balancing valve assembly 2 includes a high-precision dynamic flow balancing valve body 21, and the front and rear surfaces of the top of the high-precision dynamic flow balancing valve body 21 are arranged at the bottom of two flow pressure monitoring gauges 3, and the top of the high-precision dynamic flow balancing valve body 21 is arranged at the bottom of the electric actuator 1. The outer surface of the high-precision dynamic flow balancing valve body 21 is fixedly connected with two outer fixing plates 22 at the front and rear, and the two outer fixing plates 22 are located between the two flow pressure monitoring gauges 3, and the left and right sides of the two outer fixing plates 22 are provided with mounting holes 23, and the front and rear of the high-precision dynamic flow balancing valve body 21 are both provided with threaded shafts 24, and the outer surfaces of the front and rear threaded shafts 24 are threadedly connected to the outer surfaces of the two external components 4, and a plurality of mounting holes 25 are opened around the front and rear threaded shafts 24, and the inner wall bottom of the front and rear threaded shafts 24 is fixedly connected with sealant 26 around.

[0029] By using the sensor feedback and control valve opening of the electric actuator 1, the real-time monitoring and regulation of the pipeline system flow can be achieved through electronic intelligent control. The function of the sensor is to sense the pressure difference or temperature and other parameters in the pipeline, and feed these parameters back to the electric actuator 1 in the form of current signals, so as to control the valve opening of the high-precision dynamic flow balancing valve body 21, thereby achieving balanced control of the flow in the pipeline, achieving automatic adjustment without manual operation, and achieving remote control, thereby improving the accuracy of flow regulation. At the same time, it is easy to maintain and has a high degree of automation, which can effectively reduce the number of manual interventions, reduce labor costs and operation and maintenance costs, and reuse the high-precision dynamic flow balancing valve body 21 The two flow and pressure monitoring gauges 3 arranged on the front and rear surfaces of the top can facilitate the observation of the front and rear flow and pressure data, and are convenient for recording and intuitive comparison. The two outer fixing plates 22 fixedly connected on the front and rear outer surfaces of the high-precision dynamic flow balancing valve body 21 and the mounting holes 23 opened on the left and right sides of the two outer fixing plates 22 are convenient for reinforcing the balance after connection to prevent misalignment and easy leakage due to unexpected factors. The two external threaded blocks 41 are threadedly connected to the front and rear threaded shafts 24 of the high-precision dynamic flow balancing valve body 21, and the sealant 26 fixedly connected around the bottom of the inner wall of the threaded shaft 24 is used to strengthen the sealing effect after the external threaded block 41 is connected to the high-precision dynamic flow balancing valve body 21.

[0030] like Figure 3 - Figure 5 As shown, the external component 4 includes an external thread block 41 and a rubber ring 46, the rear outer surface of the external thread block 41 is threadedly connected to the inner wall of the threaded shaft 24, the front of the external thread block 41 is provided with a mounting port 43, the front of the external thread block 41 is provided with a plurality of mounting holes three 42 and the plurality of mounting holes three 42 are located around the front of the mounting port 43, the outer surface of the mounting port 43 is fixedly connected with a threaded plastic inner layer 44, the inner wall of the external thread block 41 is provided with a mounting groove ring 45, the bottom of the inner wall of the mounting groove ring 45 is fixedly connected with a plurality of dampers 49, the outer surfaces of the plurality of dampers 49 are movably sleeved with springs two 410, the output ends of the plurality of dampers 49 are fixedly connected with hard rubber rings 48, the inner wall of the hard rubber ring 48 is connected with a plurality of springs one 47, and the outer surface of the rubber ring 46 is fixedly connected with the surfaces of the plurality of springs one 47.

[0031] The combination of the mounting holes 25 opened around the threaded shaft 24 and the mounting holes 3 42 opened at the front of the external threaded block 41 is connected by bolts to achieve reinforcement, and the threaded plastic inner layer 44 fixedly connected to the outer surface of the mounting port 43 is used to connect the water pipe for long-term use without rusting, which affects the later installation and disassembly. At the same time, the mounting groove ring 45 opened on the inner wall of the external threaded block 41 assists in the installation of the damper 49 and the spring 2 410, so that the external threaded block 41 utilizes the connection between the threaded plastic inner layer 44 and the external water pipe to apply pressure to the rubber ring 46, and the pressure is transmitted to a number of springs 1 47 and hard rubber rings 48. The damper 49 and the spring 2 410 are used to squeeze the buffer pressure and improve the sealing effect. At the same time, the mounting hole 3 42 opened at the front of the external threaded block 41 and the external water pipe can also be used to strengthen the connection balance.

[0032] like Figure 3 As shown, the outer surface of the rubber ring 46 is slidably connected to the inner wall of the mounting groove ring 45 , and the height of the rubber ring 46 at the mounting opening 43 is higher than the height of the threaded plastic inner layer 44 .

[0033] The installation of the rubber ring 46 is assisted by the installation groove ring 45, which expands and slides on the inner wall thereof. Moreover, since the height of the rubber ring 46 at the installation opening 43 is higher than the height of the threaded plastic inner layer 44, a better sealing effect is achieved.

[0034] The working principle of the utility model is as follows: the sensor feedback and control valve opening of the electric actuator 1 are used to realize real-time monitoring and regulation of the flow of the pipeline system through electronic intelligent control. The function of the sensor is to sense the pressure difference or temperature and other parameters in the pipeline, and feed these parameters back to the electric actuator 1 in the form of current signals, so as to control the valve opening of the high-precision dynamic flow balancing valve body 21, so as to realize the balance control of the flow in the pipeline, realize automatic adjustment, no manual operation is required, and remote control can be realized, which improves the accuracy of flow regulation. At the same time, it is easy to maintain and has a high degree of automation, which can effectively reduce the number of manual interventions, reduce labor costs and operation and maintenance costs, and at the same time, the two flow pressure monitoring meters 3 set on the front and back surfaces of the top of the high-precision dynamic flow balancing valve body 21 can be used to observe the front and back flow and pressure data, and record the intuitive comparison. The two outer fixing plates 22 fixedly connected to the front and back of the outer surface of the high-precision dynamic flow balancing valve body 21 and the mounting holes 23 opened on the left and right sides of the two outer fixing plates 22 are convenient for strengthening the balance after connection to prevent misalignment and leakage due to unforeseen factors. The two external threaded blocks 41 are threadedly connected to the front and rear threaded shafts 24 of the high-precision dynamic flow balancing valve body 21, and the sealant 26 fixedly connected around the bottom of the inner wall of the threaded shaft 24 is used to strengthen the sealing effect after the external threaded block 41 is connected to the high-precision dynamic flow balancing valve body 21. The second mounting hole 25 opened around the threaded shaft 24 and the third mounting hole 42 opened at the front of the external threaded block 41 are combined to achieve a reinforcement effect by bolt connection, and the threaded plastic inner layer 44 fixedly connected to the outer surface of the mounting port 43 is used to connect the water pipe for long-term use. There will be no rust, which will affect the later installation and disassembly. At the same time, the installation groove ring 45 opened on the inner wall of the external threaded block 41 is used to assist the installation of the damper 49 and the spring 2 410, so that the external threaded block 41 can use the connection between the threaded plastic inner layer 44 and the external water pipe to apply pressure to the rubber ring 46, and transfer the pressure to several springs 1 47 and hard rubber rings 48. The damper 49 and the spring 2 410 are used to squeeze and buffer the pressure to improve the sealing effect. At the same time, the installation hole 3 42 opened on the front of the external threaded block 41 can also be used to strengthen the connection balance with the external water pipe.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-precision dynamic flow balancing valve, comprising an electric actuator (1), characterized in that: A balancing valve assembly (2) is arranged below the electric actuator (1); two flow and pressure monitoring gauges (3) are arranged on the front and rear surfaces of the top of the balancing valve assembly (2); and two external components (4) are connected to the front and rear threads of the balancing valve assembly (2); The balancing valve assembly (2) comprises a high-precision dynamic flow balancing valve body (21), the front and rear surfaces of the top of the high-precision dynamic flow balancing valve body (21) are arranged at the bottom of two flow pressure monitoring meters (3), the top of the high-precision dynamic flow balancing valve body (21) is arranged at the bottom of the electric actuator (1), the outer surface of the high-precision dynamic flow balancing valve body (21) is fixedly connected to two outer fixing plates (22) at the front and rear, and the two outer fixing plates (22) are located between the two flow pressure monitoring meters (3), the left and right sides of the two outer fixing plates (22) are provided with mounting holes (23), the front and rear of the high-precision dynamic flow balancing valve body (21) are provided with threaded shafts (24), the outer surfaces of the front and rear threaded shafts (24) are threadedly connected to the outer surfaces of the two external components (4), the front and rear threaded shafts (24) are provided with a plurality of mounting holes (25) around them, and the inner wall bottom of the front and rear threaded shafts (24) is fixedly connected with sealant (26) around them.

2. A high-precision dynamic flow balancing valve according to claim 1, characterized in that: The external connection component (4) comprises an external thread block (41) and a rubber ring (46); the rear outer surface of the external thread block (41) is threadedly connected to the inner wall of the threaded shaft (24); the front of the external thread block (41) is provided with a mounting opening (43); the front of the external thread block (41) is provided with a plurality of mounting holes (42), and the plurality of mounting holes (42) are located around the front of the mounting opening (43); and the outer surface of the mounting opening (43) is fixedly connected with a threaded plastic inner layer (44).

3. A high-precision dynamic flow balancing valve according to claim 2, characterized in that: The inner wall of the externally connected threaded block (41) is provided with a mounting groove ring (45), the bottom of the inner wall of the mounting groove ring (45) is fixedly connected with a plurality of dampers (49), and the outer surfaces of the plurality of dampers (49) are movably sleeved with springs 2 (410).

4. A high-precision dynamic flow balancing valve according to claim 3, characterized in that: The output ends of the plurality of dampers (49) are fixedly connected to a hard rubber ring (48), the inner wall of the hard rubber ring (48) is connected to a plurality of springs (47) around the inner wall, and the outer surface of the rubber ring (46) is fixedly connected to the surfaces of the plurality of springs (47) around the outer surface.

5. A high-precision dynamic flow balancing valve according to claim 4, characterized in that: The outer surface of the rubber ring (46) is slidably connected to the inner wall of the mounting groove ring (45), and the height of the rubber ring (46) at the mounting opening (43) is higher than the height of the threaded plastic inner layer (44).

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