Remote continuous adjustable low-wind-resistance air distribution tee joint suitable for complex ventilation system

Abstract

The invention discloses a remote continuous adjustable low-wind-resistance air distribution tee joint suitable for a complex ventilation system, and belongs to the technical field of pipeline valves, the remote continuous adjustable low-wind-resistance air distribution tee joint comprises a tee joint body, a branch pipe air adjusting device, an angle control device and a flow guide device, the tee joint body comprises two branch pipe air inlet connecting sections, a tee joint air outlet section and a tee joint base, the top end of the branch pipe air inlet connecting section is connected with an air inlet pipe through a flange, the top end of the three-way air outlet section is connected with the three-way base through a flange, and the bottom end of the three-way air outlet section is connected with an air outlet pipe through a flange. Therefore, by the adoption of the remote continuous adjustable low-wind-resistance air volume distribution tee joint suitable for the complex ventilation system, stepless variable air volume adjustment of all branch pipes of the complex ventilation system is achieved, local resistance of the tee joint is reduced, and the remote continuous adjustable low-wind-resistance air volume distribution tee joint has the advantages of being capable of achieving stepless air volume adjustment, convenient to adjust, stable in working state and the like.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline valves, and in particular to a remotely continuously adjustable low-wind resistance air volume distribution tee suitable for complex ventilation systems. Background Art

[0002] In the production process of industrial and mining enterprises, affected by the production process, the mining industry's rock drilling, blasting, shoveling, and crushing; the mineral processing industry's mineral storage, transportation, crushing, grinding, and washing; the thermal power industry's coal storage, transportation, crushing, and grinding; the construction industry's building materials cutting, grinding, and polishing; cement production and transportation; the furniture industry's cutting, grinding, and polishing; the electronic industry's component welding, etc., will all generate a lot of dust in all aspects of social production. Due to environmental and space restrictions, underground operations in mines, washing operations in mineral processing enterprises, smelting in smelting enterprises, transportation of high-temperature materials, forming and rolling operations of materials, and steam units in power plants. The process generates a lot of steam, and the process has heat sources, which may cause high temperature and high humidity in the working environment. If the dust, heat, and volatile steam generated in the production process of industrial and mining enterprises are not handled in a timely manner, it will inevitably lead to excessive dust in the working environment, excessive temperature, and excessive humidity. This not only seriously affects the working environment, but also threatens the health and life safety of the staff.

[0003] At present, various industrial and mining enterprises mainly adopt ventilation and dust removal and ventilation and cooling and dehumidification measures to improve the working environment. Due to the limitations of the spatial structure of the workplace and the layout of equipment and facilities, centralized ventilation and dust removal systems and centralized ventilation and cooling and dehumidification systems are generally used to reduce the dust concentration, air temperature and humidity in the working environment. Centralized ventilation and dust removal systems and centralized ventilation and cooling and dehumidification systems are favored by various enterprises because of their stable operation and easy unified management. However, due to the wide control range of the centralized ventilation system, there are many system branches, long operating pipelines, and large changes in pipe diameters. This not only increases the operating resistance of the entire system and increases the difficulty of air volume distribution in each branch system, but also easily leads to ventilation resistance mismatching of each branch system, uneven air volume distribution, and even system airflow turbulence, redundant air volume distribution in some branch systems, insufficient air volume distribution in some branch systems or no wind, which seriously affects the operating efficiency of the system and the effective improvement of working environment conditions. The regulation of air volume in each branch system of a complex ventilation system is mainly achieved by installing air valves on the pipes of each branch system. The local resistance of the branch system is changed by adjusting the opening degree of the air valve. The change in local resistance causes the total resistance of the branch system to change. If the resistance of a branch system changes, the air volume distribution balance of the entire system will be broken, and the air volume distribution of the entire system will be readjusted to reach a new balance.

[0004] The traditional tee has the characteristics of simple structure, easy installation and maintenance, and has been widely used. However, in the process of adjusting the air volume, it is impossible to change the air volume distribution of each branch pipe by changing the structure of the tee, nor can it play the role of regulating the air volume. It can only be adjusted by adjusting the valve angle and the depth of the butterfly valve or the plug valve installed on each branch pipe, and it is difficult to achieve continuous adjustment of the air volume distribution. At the same time, due to the limitations of the structure of the butterfly valve and the plug valve, the butterfly valve and the plug valve are prone to generate large local resistance in the process of changing the size of the air duct, which not only changes the ventilation wind resistance of the branch system, but also leads to the resistance balance of the entire ventilation system, changes the air volume distribution of the entire system, and affects the operation effect of the overall system. Summary of the invention

[0005] The purpose of the present invention is to provide a remotely continuously adjustable low-resistance air volume distribution tee suitable for complex ventilation systems, which makes up for the shortcomings that ordinary tees cannot achieve air volume distribution and that traditional butterfly valves and gate valves cannot achieve stepless air volume variable regulation and excessive local resistance generated during the regulation process.

[0006] To achieve the above objectives, the present invention provides a remotely continuously adjustable low-resistance air volume distribution tee suitable for complex ventilation systems, comprising a tee body, a branch pipe air regulating device, an angle control device and a flow guide device.

[0007] Preferably, the tee body includes two branch pipe air inlet connecting sections, a tee air outlet section and a tee base. The top ends of the branch pipe air inlet connecting sections are connected to the air inlet ducts via flanges, the top ends of the tee air outlet sections are connected to the tee base via flanges, and the bottom ends of the tee air outlet sections are connected to the air outlet ducts via flanges.

[0008] Preferably, the branch pipe air regulating device includes two air regulating shells, air volume adjusting plates, reset springs and connecting ropes. The number of air volume adjusting plates, reset springs and connecting ropes is several. The branch pipe air inlet connecting sections are respectively arranged on the top of the two air regulating shells, one end of the air regulating shells is welded to the bottom end of the air inlet connecting section, and the other end of the air regulating shells is connected to the three-way base through a flange. The air volume adjusting plates are equidistantly arranged inside the air regulating shells through shaft sleeves, one end of the reset spring is arranged on a fixing ring 1 inside the air regulating shell, and the other end is arranged on a fixing ring 2 of the air volume adjusting plate, and one end of the connecting rope is connected to the air volume adjusting plate.

[0009] Preferably, a sealing gasket is provided in the middle of the flange.

[0010] Preferably, the number of the air volume regulating pieces is 6-12, and the air volume regulating pieces are curved regulating pieces.

[0011] Preferably, the angle control device includes a pulley, a traction rope, a base and an adjusting sleeve. The number of the pulley, the traction rope and the adjusting sleeve are all two. The pulleys are respectively arranged inside the two branch pipe air inlet connecting sections, the base is arranged between the two branch pipe air inlet connecting sections, the base is rotatably connected to the rotating rod through a fixed bearing, the adjusting sleeves are fixedly sleeved on the outer wall of the rotating rod, the other ends of the two traction ropes are respectively fixedly connected to the two adjusting sleeves, one ends of the two traction ropes are respectively fixedly connected to the two adjusting sleeves, and the other ends respectively bypass the pulley and pass through the two branch pipe air inlet connecting sections to be connected to the other end of the connecting rope.

[0012] Preferably, the angle control device also includes an angle indicator, a gear controller, a worm gear, a worm, a stepper motor and an adjustment handle, one end of the rotating rod is connected to the angle indicator, the other end of the rotating rod is connected to the gear controller, the worm gear is arranged in the middle of the rotating rod, the worm gear is meshingly connected to the worm gear, one end of the worm gear is connected to the stepper motor, and the adjustment handle is fixedly mounted on the worm gear.

[0013] Preferably, the stepper motor is connected to a remote controller.

[0014] Preferably, the angle indicator comprises an angle pointer and an angle disk, and the angle pointer is arranged on the angle disk and is rotationally connected to the angle disk.

[0015] Preferably, the air guide device includes a front air guide plate and a rear air guide plate, the front air guide plate is arranged at the bottom ends of the two branch pipe air inlet connecting sections, and the rear air guide plate is arranged at the bottom ends of the two air regulating shells.

[0016] Therefore, the present invention adopts the above-mentioned remote continuously adjustable low wind resistance air volume distribution tee suitable for complex ventilation systems, which has the following beneficial effects: the configuration of the air volume adjustment plate and the design of the guide plate greatly reduce the flow resistance of the air inlet and outlet, and improve the air flow efficiency; at the same time, it can realize the branch pipe air volume distribution of the complex ventilation system.

[0017] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a remotely continuously adjustable low wind resistance air volume distribution tee applicable to a complex ventilation system according to an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the structure of the air volume regulating piece in different states according to the embodiment of the present invention, (a) shows the air volume regulating piece in a fully reset state, (b) shows the air volume regulating piece in a fully closed state, (c) shows the air volume regulating piece in one air regulating housing in a fully reset state, and the air volume regulating piece in the other air regulating housing in a fully closed state;

[0020] Figure 3The cross-sectional view of the air regulating housing of the embodiment of the present invention, (a) shows the air volume regulating piece in a fully reset state, (b) shows the air volume regulating piece in a fully closed state;

[0021] Figure 4 for Figure 1 The enlarged view of point A in the middle;

[0022] Figure 5 A top view of an adjusting sleeve according to an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of the structure of an adjustment dial according to an embodiment of the present invention;

[0024] Figure 7 is a structural schematic diagram of an angle indicator according to an embodiment of the present invention;

[0025] Reference numerals

[0026] 1. Air inlet duct; 2. Sealing gasket; 3. Flange; 4. Pulley; 5. Traction rope; 6. Base; 7. Worm; 8. Stepper motor; 9. Angle indicator; 91. Angle plate; 92. Angle pointer; 10. Gear controller; 11. Fixed bearing; 12. Adjusting bushing; 13. Adjusting handle; 14. Branch pipe air inlet connecting section; 15. Connecting rope; 16. Air adjustment housing; 17. Front air guide plate; 18. Air volume adjustment plate; 19. Reset spring; 20. Bushing; 21. Rear air guide plate; 22. Three-way base; 23. Three-way air outlet section; 24. Air outlet duct; 25. Worm gear; 26. Rotating rod. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally shown and described in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] Example

[0030] like Figure 1-7 As shown, the present invention provides a remotely continuously adjustable low-resistance air volume distribution tee suitable for complex ventilation systems, comprising a tee body, a branch pipe air regulating device, an angle control device and a flow guide device.

[0031] The tee body includes two branch pipe air inlet connection sections 14, a tee air outlet section 23 and a tee base 22. The top ends of the branch pipe air inlet connection sections 14 are connected to the air inlet duct 1 via flanges 3, the top ends of the tee air outlet sections 23 are connected to the tee base 22 via flanges 3, and the bottom ends of the tee air outlet sections 23 are connected to the air outlet duct 24 via flanges.

[0032] The branch pipe air regulating device includes two air regulating housings 16, air volume regulating pieces 18, reset springs 19 and connecting ropes 15, and the number of air volume regulating pieces 18, reset springs 19 and connecting ropes 15 are all several. The branch pipe air inlet connecting sections 14 are respectively arranged on the top of the two air regulating housings 16, one end of the air regulating housing 16 is connected to the bottom end of the branch pipe air inlet connecting section 14 by welding, and the other end of the air regulating housing 16 is connected to the three-way base 22 by flange 3. The air volume regulating pieces 18 are equidistantly arranged inside the air regulating housing 16 through the shaft sleeve 20, and the air volume regulating pieces 18 are rotatably connected to the air regulating housing 16. The number of air volume regulating pieces 18 is 6-12 pieces, and the number of air volume regulating pieces 18 is preferably 8 pieces, and the air volume regulating pieces 18 are curved surface regulating pieces.

[0033] A sealing gasket is arranged in the middle of the flange 3.

[0034] One end of the reset spring 19 is arranged on the fixed ring 1 inside the air regulating housing 16, and the other end is arranged on the fixed ring 2 of the air volume regulating piece 18, which is used to realize the reset of the air volume regulating piece 18. The reset spring 19 reserves a pre-tension stress to ensure that the air volume regulating piece 18 is always in a reset state, which helps to prevent the position drift of the air volume regulating piece 18 due to mechanical friction or external interference. One end of the connecting rope 15 is connected to the air volume regulating piece 18, and the connecting rope 15 can pull the air volume regulating piece 18 to rotate around the shaft sleeve 20.

[0035] The angle control device includes a pulley 4, a traction rope 5, a base 6, an angle indicator 9, a gear controller 10, an adjustment sleeve 12, a worm gear 25, a worm 7, a stepper motor 8 and an adjustment handle 13. The pulley 4, the traction rope 5 and the adjustment sleeve 12 are each provided in two numbers. The pulley 4 is respectively arranged inside the two branch pipe air inlet connection sections 14, one end of the two traction ropes 5 is respectively fixedly connected to the two adjustment sleeves 12, and the two ends are respectively bypassed by the pulley 4 and passed through the branch pipe air inlet connection section 14 to be connected to the other end of the connection rope 15. The angle control device adjusts the opening angle of the adjustment plate by controlling the position of the connection rope 15.

[0036] The air volume regulating piece 18 rotates in the same direction around the shaft sleeve 20 under the action of the angle control device. The change of the relative position of the air volume regulating piece 18 changes the diameter of the ventilation duct formed by the air volume regulating piece 18, thereby realizing stepless variable adjustment of the air volume.

[0037] The extension and retraction length of the traction rope 5 is controlled by adjusting the rotation of the adjusting sleeve 12 , thereby controlling the opening range of the air volume adjusting piece 18 .

[0038] The air volume adjustment piece 18 can rotate around the shaft sleeve 20 fixed on the shell, and the rotation angle is controlled by the angle control device. By adjusting the rotation angle of the air volume adjustment piece 18, the size of one branch air duct can be changed, or the sizes of two branch air ducts can be changed at the same time, thereby realizing the adjustment of the three-way air volume distribution.

[0039] The base 6 is arranged between the two branch pipe air inlet connection sections 14. The base 6 is rotatably connected with a rotating rod 26 through a fixed bearing 11. One end of the rotating rod 26 is connected to the angle indicator 9, and the other end is connected to the gear controller 10. The adjusting sleeves 12 are fixedly sleeved on the outer wall of the rotating rod 26. A worm gear 25 is arranged in the middle of the rotating rod 26. The worm 7 is meshed and connected with the worm gear 25. One end of the worm 7 is connected to the stepping motor 8. The adjusting handle 13 is fixedly sleeved on the worm 7. The automatic and manual conversion and the conversion between the two adjusting sleeves 12 are realized through the gear controller 10. The adjusting sleeve 12 is manually adjusted under the action of the adjusting handle 13, and automatically adjusted under the action of the stepping motor 8; the stepping motor 8 is connected to a remote controller, and the start and stop of the stepping motor 8 are controlled by the remote controller, which can realize remote control.

[0040] The angle indicator 9 includes an angle disk 91 and an angle pointer 92. The angle pointer 92 is arranged on the angle disk 91 and is rotationally connected to the angle disk 91. The angle disk 91 rotates with the adjustment sleeve 12, and the rotation angle of the air volume adjustment plate 18 can be calibrated. By observing the position of the angle pointer 92 on the angle disk 91, the opening angle of the air volume adjustment plate 18 can be determined.

[0041] The worm 7, worm wheel 25, traction rope 5, reset spring 19 and air volume adjustment piece 18 work together to realize self-locking of the opening angle; the self-locking of the adjusting sleeve 12 is realized by the self-locking function of the worm wheel 25 and worm 7. After the adjusting sleeve 12 is self-locked, the air volume adjustment piece 18 is self-locked under the joint action of the traction rope 5 and the reset spring 19.

[0042] The air guide device includes a front air guide plate 17 and a rear air guide plate 21. The front air guide plate 17 is arranged at the bottom end of the two branch pipe air inlet connection sections 14 (i.e., the inlet end of the branch pipe air regulating device), and the rear air guide plate 21 is arranged at the bottom end of the two air regulating housings 16 (the outlet end of the branch pipe air regulating device). The front air guide plate 17, the rear air guide plate 21 and the air volume adjustment plate 18 work together to effectively guide the airflow into and out of the air volume distribution tee, reduce the local resistance of the tee inlet and outlet, and reduce the air resistance of the tee.

[0043] Therefore, the present invention adopts the above-mentioned remote continuously adjustable low wind resistance air volume distribution tee suitable for complex ventilation systems, realizes stepless variable air volume regulation of each branch of the complex ventilation system, reduces the local resistance of the tee, and has the characteristics of stepless air volume regulation, convenient system adjustment, and stable working state.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A remote, continuously adjustable, low-resistance air volume distribution tee suitable for complex ventilation systems, characterized by: It includes a three-way body, a branch pipe air regulating device, an angle control device and a flow guide device.

2. The remotely continuously adjustable low wind resistance air volume distribution tee for complex ventilation systems according to claim 1, characterized in that: The tee body includes two branch pipe air inlet connection sections, a tee air outlet section and a tee base. The top ends of the branch pipe air inlet connection sections are connected to the air inlet ducts through flanges, the top ends of the tee air outlet sections are connected to the tee base through flanges, and the bottom ends of the tee air outlet sections are connected to the air outlet ducts through flanges.

3. The remotely continuously adjustable low wind resistance air volume distribution tee for complex ventilation systems according to claim 2, characterized in that: The branch pipe air regulating device includes two air regulating shells, air volume adjusting plates, reset springs and connecting ropes. The number of air volume adjusting plates, reset springs and connecting ropes is several. The branch pipe air inlet connecting sections are respectively arranged on the top of the two air regulating shells. One end of the air regulating shell is welded to the bottom end of the air inlet connecting section. The other end of the air regulating shell is connected to the three-way base through a flange. The air volume adjusting plates are arranged at equal distances inside the air regulating shells through shaft sleeves. One end of the reset spring is arranged on a fixing ring 1 inside the air regulating shell, and the other end is arranged on a fixing ring 2 of the air volume adjusting plate. One end of the connecting rope is connected to the air volume adjusting plate.

4. The remotely continuously adjustable low wind resistance air volume distribution tee for complex ventilation systems according to claim 3 is characterized by: A sealing gasket is arranged in the middle of the flange.

5. The remotely continuously adjustable low wind resistance air volume distribution tee for complex ventilation systems according to claim 3, characterized in that: The number of air volume adjustment pieces is 6-12 pieces, and the air volume adjustment pieces are curved adjustment pieces.

6. The remotely continuously adjustable low wind resistance air volume distribution tee for complex ventilation systems according to claim 3, characterized in that: The angle control device includes a pulley, a traction rope, a base and an adjusting sleeve. There are two pulleys, two traction ropes and two adjusting sleeves. The pulleys are respectively arranged inside the two branch pipe air inlet connecting sections, the base is arranged between the two branch pipe air inlet connecting sections, the base is rotatably connected to a rotating rod through a fixed bearing, the adjusting sleeves are fixedly sleeved on the outer wall of the rotating rod, the other ends of the two traction ropes are respectively fixedly connected to the two adjusting sleeves, one ends of the two traction ropes are respectively fixedly connected to the two adjusting sleeves, and the other ends respectively bypass the pulleys and pass through the two branch pipe air inlet connecting sections to be connected to the other ends of the connecting ropes.

7. The remotely continuously adjustable low wind resistance air volume distribution tee for complex ventilation systems according to claim 6, characterized in that: The angle control device also includes an angle indicator, a gear controller, a worm gear, a worm, a stepper motor and an adjustment handle. One end of the rotating rod is connected to the angle indicator, and the other end of the rotating rod is connected to the gear controller. The worm gear is arranged in the middle of the rotating rod, and the worm gear is meshed with the worm gear. One end of the worm gear is connected to the stepper motor, and the adjustment handle is fixedly mounted on the worm gear.

8. The remotely continuously adjustable low wind resistance air volume distribution tee for complex ventilation systems according to claim 7, characterized in that: The stepper motor is connected with a remote controller.

9. The remotely continuously adjustable low wind resistance air volume distribution tee for complex ventilation systems according to claim 7, characterized in that: The angle indicator comprises an angle pointer and an angle disk. The angle pointer is arranged on the angle disk and is rotationally connected to the angle disk.

10. The remotely continuously adjustable low wind resistance air volume distribution tee for complex ventilation systems according to claim 9, characterized in that: The air guide device comprises a front air guide plate and a rear air guide plate. The front air guide plate is arranged at the bottom ends of the two branch pipe air inlet connection sections, and the rear air guide plate is arranged at the bottom ends of the two air regulating shells.

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