Intelligent pipe network balance regulation and control device

Abstract

The utility model discloses an intelligent pipe network balance regulation and control device which comprises an actuating mechanism and a valve body part, the actuating mechanism comprises a pneumatic regulation box body, the pneumatic regulation box body is in sealing connection with an end cover at the top of the pneumatic regulation box body through an O-shaped ring, the valve body part comprises a valve body and a flange plate, and a sleeve penetrating through the inner side and the outer side of the valve body is arranged on the flange plate. A valve core and a valve rod which is connected with the valve core and extends into the valve body are arranged in the sleeve; a free end of the valve rod is provided with a valve disc which is matched with a valve seat arranged at a rotary passage of the valve body in an opening and closing manner; according to the utility model, the traditional drum-type structure is replaced by the rectangular body, and the bolt connection is replaced by the O-shaped ring sealing with the upper part covered, so that the sealing performance is better; the structure of the valve element is redesigned, through cooperation of components, upward impact of water flow can be prevented no matter in the flow opening and closing state of balanced regulation and control, corrosion and impact abrasion of the water flow to the valve element on the upper portion can be effectively prevented, reliability is higher, and the service life of the device is further prolonged.

Description

Technical Field

[0001] The utility model relates to a pipe network balancing control device, in particular to an intelligent pipe network balancing control device. Background Art

[0002] An intelligent pipe network balancing and control device issues valve opening commands to achieve hydraulic balance in the pipe network. Hydraulic balance involves properly regulating water flow and pressure so that each branch or device in the pipe network receives the required water flow and maintains a stable operating state.

[0003] At present, the intelligent pipe network balancing and control device is divided into two parts: the actuator and the valve body. The diaphragm housing of the actuator of the existing intelligent pipe network balancing and control device is usually a drum structure, that is, the actuator is connected to the drum shape by bolts of the upper and lower covers. Due to the size limitation of such a traditional structure, the deformation pressure borne by the diaphragm is relatively low, and the output force is limited. Moreover, the method of bolting the upper and lower covers has poor sealing performance and low adaptability to flammable, explosive, and dusty working environments. After long-term work, dust and other pollutants can easily enter through the bolted joints. When the valve body of the existing intelligent pipe network balancing and control device is adjusted to a large opening, the water flow pressure is very high, and it is easy to directly penetrate into the valve core and valve stem under long-term impact wear and corrosion, causing damage to the mechanism. Utility Model Content

[0004] In order to solve the deficiencies of the above technologies, the present invention provides an intelligent pipe network balancing and control device.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an intelligent pipe network balancing control device, including an actuator and a valve body part respectively arranged upper and lower to cooperate with each other;

[0006] The actuator includes a pneumatic adjustment box in a rectangular shape, and the pneumatic adjustment box is sealed and connected to the end cover on its top through an O-ring;

[0007] The valve body part includes a valve body and a flange connected to the upper end of the valve body. A sleeve is provided on the flange and passes through both sides of the valve body. A valve stem is provided in the sleeve and is driven by an actuator and connected to the valve core and is inserted into the valve body. The free end of the valve stem is provided with a valve disc that cooperates with the valve seat provided in the rotary passage of the valve body to open and close.

[0008] A movable sealing block is sleeved on the core body of the valve core close to the valve stem, and a fixed sealing block is arranged just above the movable sealing block and is located around the periphery of the valve core. A spring is arranged between the end of the valve core and the fixed sealing block.

[0009] Furthermore, the top cover of the pneumatic adjustment box is implemented in a manner of completely covering the upper opening of the pneumatic adjustment box.

[0010] Furthermore, the rotary passage of the valve body is arranged between the inlet end and the outlet end of the valve body and is located directly below the flange.

[0011] Furthermore, the valve seat is provided with a through opening that matches the size of the valve disc.

[0012] Furthermore, the fixed sealing block and the movable sealing block are both arranged in the sleeve, and mutually wedged wedge sealing inclined surfaces are formed between the fixed sealing block and the movable sealing block, and the movable sealing block dynamically weds with the fixed sealing block in a manner of following the up and down displacement of the valve core.

[0013] Furthermore, the fixed sealing block is fixedly connected in the sleeve, and a wide channel and a narrow channel are formed between the fixed sealing block and the valve core, and a 90° bent limiting step is formed as a transition between the narrow channel and the wide channel.

[0014] Furthermore, the valve core is integrally formed from top to bottom and comprises an end portion, a wide portion, a middle portion, and a narrow portion, the maximum diameters of which decrease in sequence.

[0015] Furthermore, a spring is sleeved on the periphery of the wide section, the maximum diameter of the wide section is greater than the maximum diameter of the wide channel, the maximum diameter of the middle section is adapted to the maximum diameter of the wide channel, the maximum diameter of the middle section is greater than the maximum diameter of the narrow channel, and the maximum diameter of the narrow section is adapted to the maximum diameter of the narrow channel.

[0016] Furthermore, the end head is connected to the driving rod of the actuator, and the free end of the narrow section is integrally connected to the valve stem.

[0017] An intelligent pipe network balancing and control device replaces the traditional drum structure with a rectangular body and the bolt connection with an O-ring seal with a cover on the upper part, which has better sealing performance; the structure of the valve core is innovatively redesigned, and through the coordination of components, it can prevent the upward impact of water flow regardless of the flow opening and closing state of balanced regulation, and can effectively prevent the corrosion and impact wear of the upper valve core by water flow, thereby enhancing reliability and further improving the life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 This is a schematic diagram of the inner cross-section structure of the valve body of the present invention.

[0020] Figure 3 This is an assembly cross-sectional view of the valve core and its connection structure of the utility model.

[0021] In the figure: 1. Actuator; 2. Valve body; 3. Valve body; 4. Valve seat; 5. Valve stem; 6. Valve disc; 7. Sleeve; 8. Flange; 9. Valve core; 10. Fixed sealing block; 11. Movable sealing block; 12. Wedge sealing slope; 13. Narrow channel; 14. Wide channel; 15. Narrow section; 16. Middle section; 17. Wide section; 18. End; 19. Spring; 20. Pneumatic adjustment box. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] like Figure 1-3 As shown together, this embodiment relates to an intelligent pipe network balancing and control device, comprising an actuator 1 and a valve body 2, which are respectively arranged up and down to cooperate with each other;

[0024] like Figure 1 As shown, the actuator 1 includes a pneumatic adjustment box 20 in a rectangular shape, and the pneumatic adjustment box 20 is sealed with the end cover on its top by an O-ring (not shown in the figure). Specifically, the top cover of the pneumatic adjustment box 20 is implemented in a manner that completely covers the upper opening of the pneumatic adjustment box 20. The sealing connection by the O-ring is a prior art. Through the above arrangement, the present embodiment has better dustproof performance than the traditional form when used in a dusty environment, and the pneumatic adjustment box 20 has a larger volume and a larger longitudinal space in the length direction, so the diaphragm can deform more, and thus the diaphragm can withstand a higher deformation pressure.

[0025] It should be noted that the other parts of the actuator 1 are existing technologies, which are not improved in this embodiment, so the relevant parts of the existing technologies are not shown in detail. This is hereby explained.

[0026] like Figure 1-3 As shown together, the valve body part 2 includes a valve body 3 and a flange 8 located at the upper end of the valve body 3 and connected by a flange. The flange 8 serves as a sealing connection for the top opening. A sleeve 7 is provided on the flange 8 and passes through the inner and outer sides of the valve body 3. A valve stem 5 connected to a valve core 9 and extending deep into the valve body 3 is provided in the sleeve 7 and driven by an actuator 1. The free end of the valve stem 5 is provided with a valve disc 6 that cooperates with the valve seat 4 provided at the rotary passage of the valve body 3 for opening and closing. The valve seat 4 is the existing technology, and the valve seat 4 is provided with a through opening that is adapted to the size of the valve disc 6; a movable sealing block 11 is provided on the core of the valve core 9 near the valve stem 5, and a fixed sealing block 10 is provided directly above the movable sealing block 11 and is located in a circle around the outer periphery of the valve core 9. A spring 19 is provided between the end 18 of the valve core 9 and the fixed sealing block 10.

[0027] Preferably, the rotary passage of the valve body 3 is provided between the inlet end and the outlet end of the valve body 3 and is located directly below the flange 8 .

[0028] like Figure 3 As shown, the fixed sealing block 10 and the movable sealing block 11 are both arranged in the sleeve 7, and a wedge sealing inclined surface 12 that is wedged with each other is formed between the fixed sealing block 10 and the movable sealing block 11. The movable sealing block 11 is dynamically wedged with the fixed sealing block 10 in a manner of following the up and down displacement of the valve core 9. It can be understood that when the fixed sealing block 10 and the movable sealing block 11 are wedged with each other, the valve core 9 drives the movable sealing block 11 upward, and the upper channel is closed, and the water in the valve seat 4 cannot penetrate. Therefore, the mutual wedging of the fixed sealing block 10 and the movable sealing block 11 is equivalent to closing the channel.

[0029] Preferably, the fixed sealing block 10 is fixedly connected in the sleeve 7, as shown in FIG. Figure 3 As shown, the fixed sealing block 10 is fixedly connected to the sleeve 7 through the boss at its widest edge, specifically by setting a step or a fixed block at the corresponding position of the sleeve 7. This is the existing technology in the processing field; further, a wide channel 14 and a narrow channel 13 are formed between the fixed sealing block 10 and the valve core 9, which are opened in sequence from top to bottom. The transition between the narrow channel 13 and the wide channel 14 forms a limiting step with a 90° bend. It can be understood that the narrow channel 13 and the wide channel 14 together form a channel with upper and lower openings.

[0030] The valve core 9 is integrally formed from top to bottom and has an end head 18, a wide section 17, a middle section 16, and a narrow section 15 with decreasing maximum diameters in sequence. The end head 18 is connected to the drive rod of the actuator 1, which is a prior art. The free end of the narrow section 15 is integrally connected to the valve stem 5, which is a prior art. Therefore, when the actuator 1 is driven, the conductive valve core 9 simultaneously drives the valve disc 6 and the valve seat 4 to open and close through the valve stem 5.

[0031] Preferably, a spring 19 is sleeved on the periphery of the wide section 17, so that the compression of the spring 19 is implemented by changing the distance between the end head 18 and the fixed sealing block 10, that is, when the valve core 9 descends, the end head 18 follows the downward movement, and the distance between the end head 18 and the fixed sealing block 10 becomes smaller, and the spring 19 is compressed; the maximum diameter of the wide section 17 is greater than the maximum diameter of the wide channel 14. It can be understood that this setting limits the downward limit position of the wide section 17, that is, the wide section 17 cannot enter the wide channel 14. In actual processing, the maximum distance that the wide section 17 can travel unidirectionally on the wide channel 14 is equal to the maximum travel distance of the valve disc 6 and the valve seat 4 for opening and closing. ; The maximum diameter of the middle section 16 is adapted to the maximum diameter of the wide channel 14, so the middle section 16 can move in the wide channel 14. Then, the maximum diameter of the middle section 16 is greater than the maximum diameter of the narrow channel 13. It can be understood that this setting limits the downward limit position of the middle section 16, that is, the middle section 16 cannot enter the narrow channel 13. In actual processing, the maximum distance that the middle section 16 can move in one direction above the limit of the narrow channel 13 is equal to the maximum travel distance of the opening and closing coordination of the valve disc 6 and the valve seat 4; the maximum diameter of the narrow section 15 is adapted to the maximum diameter of the narrow channel 13, so the narrow section 15 can move in the narrow channel 13.

[0032] In actual operation, when the flow rate needs to be increased through balanced regulation, the valve core 9 and the valve stem 5 move upward under the control drive of the actuator 1, and the valve disc 6 leaves the through hole of the valve seat 4. Water flows in from the through hole of the valve seat 4, and the valve core 9 and the valve stem 5 continue to move upward until the movable sealing block 11 and the fixed sealing block 10 are wedged with each other. The passing gap at the lower end of the narrow channel 13 is closed by the wedge sealing inclined surface 12. Even if water enters the sleeve 7, it cannot continue to impact the wear parts upward. The dynamic sealing under different states is achieved through the structural setting to protect the life of the components.

[0033] During actual operation, when balance regulation needs to be carried out and the flow needs to be closed, the valve core 9 and the valve stem 5 move downward under the control and drive of the actuator 1, and the movable sealing block 11 and the fixed sealing block 10 are wedged and disengaged until the valve disc 6 dynamically seals and fits in the through hole of the valve seat 4 when moving downward. At this time, the transition part between the wide section 17 and the middle section 16 abuts against the upper port of the wide channel 14, and the transition part between the middle section 16 and the narrow section 15 abuts against the limit steps of the wide channel 14 and the narrow channel 13. At this time, two upper and lower sealing relationships are formed, and the water flow that is not removed in time cannot impact upward to cause leakage, corrosion, and damage.

[0034] The above-mentioned implementation manner is not a limitation of the present invention, and the present invention is not limited to the above-mentioned examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. An intelligent pipe network balancing and control device, characterized by: It comprises an actuator (1) and a valve body (2) which are respectively arranged above and below to cooperate with each other; The actuator (1) comprises a pneumatic adjustment box (20) in a rectangular shape, and the pneumatic adjustment box (20) is sealed and connected to an end cover on its top via an O-ring; The valve body portion (2) comprises a valve body (3) and a flange (8) located at the upper end of the valve body (3) and connected to the flange. The flange (8) is provided with a sleeve (7) that penetrates the inner and outer sides of the valve body (3). The sleeve (7) is provided with a valve core (9) driven by an actuator (1) and a valve stem (5) connected to the valve core (9) and extending into the valve body (3). The free end of the valve stem (5) is provided with a valve disc (6) that cooperates with a valve seat (4) provided at a rotary passage of the valve body (3) for opening and closing. A movable sealing block (11) is sleeved on the core of the valve core (9) close to the valve stem (5); a fixed sealing block (10) is arranged directly above the movable sealing block (11) and is located around the periphery of the valve core (9); and a spring (19) is arranged between the end (18) of the valve core (9) and the fixed sealing block (10).

2. The intelligent pipe network balancing and control device according to claim 1, characterized in that: The top cover of the pneumatic adjustment box (20) is implemented in a manner of completely covering the upper opening of the pneumatic adjustment box (20).

3. The intelligent pipe network balancing and control device according to claim 1, characterized in that: The rotary passage of the valve body (3) is arranged between the inlet end and the outlet end of the valve body (3) and is located directly below the flange (8).

4. The intelligent pipe network balancing and control device according to claim 1, characterized in that: The valve seat (4) is provided with a through opening that matches the size of the valve disc (6).

5. The intelligent pipe network balancing and control device according to claim 1, characterized in that: The fixed sealing block (10) and the movable sealing block (11) are both arranged in the sleeve (7), and mutually wedged wedge sealing inclined surfaces (12) are formed between the fixed sealing block (10) and the movable sealing block (11). The movable sealing block (11) is dynamically wedged with the fixed sealing block (10) in a manner of following the upward and downward displacement of the valve core (9).

6. The intelligent pipe network balancing and control device according to claim 5, characterized in that: The fixed sealing block (10) is fixedly connected in the sleeve (7), and a wide channel (14) and a narrow channel (13) are formed between the fixed sealing block (10) and the valve core (9), and a 90°-bent limiting step is formed as a transition between the narrow channel (13) and the wide channel (14).

7. The intelligent pipe network balancing and control device according to claim 6, characterized in that: The valve core (9) is integrally formed from top to bottom and comprises an end portion (18), a wide section (17), a middle section (16), and a narrow section (15), the maximum diameters of which decrease in sequence.

8. The intelligent pipe network balancing and control device according to claim 7, characterized in that: A spring (19) is sleeved around the wide section (17); the maximum diameter of the wide section (17) is greater than the maximum diameter of the wide channel (14); the maximum diameter of the middle section (16) is adapted to the maximum diameter of the wide channel (14); the maximum diameter of the middle section (16) is greater than the maximum diameter of the narrow channel (13); and the maximum diameter of the narrow section (15) is adapted to the maximum diameter of the narrow channel (13).

9. The intelligent pipe network balancing and control device according to claim 7, characterized in that: The end head (18) is connected to the driving rod of the actuator (1), and the free end of the narrow section (15) is integrally connected to the valve stem (5).

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