A gravity self-regulating hydraulic pressure stabilizing device

Abstract

The present invention belongs to the technical field of regulating equipment, and specifically discloses a gravity self-regulating hydraulic pressure stabilizing device, comprising a water inlet pipe, a water outlet pipe, a regulating box, a fixed fulcrum with a rotating mechanism, a flow limiting device, an external water resistance regulating device, and a pressure balancing device. A fixed fulcrum with a rotating mechanism is arranged above the water inlet inside the regulating box, and a flow limiting device is arranged on the fixed fulcrum with the rotating mechanism. The flow limiting device comprises a connecting piece, a water flow resistance plate, and a gravity resistance regulating block. The water flow resistance plate is installed on the fixed fulcrum with a rotating mechanism through a connecting piece, and the water flow resistance plate is connected to the connecting piece at a certain angle. The water flow resistance plate is vertically placed on the water inlet of the water inlet pipe, and the gravity resistance regulating block is arranged on the water flow resistance plate.

Description

Technical Field

[0001] The invention relates to the field related to regulating equipment, in particular to a gravity self-regulating hydraulic pressure stabilizing device. Background Art

[0002] The cooling tower system needs to maximize the cooling area utilization, which puts forward new requirements for the cooling tower hardware conditions. Especially in the cooling tower system during the low and medium load period, because the total operating load does not reach the maximum load designed for the cooling tower, the traditional cooling tower is not adapted to the flow rate reduction, and part of the cooling area cannot be effectively utilized. It is impossible to fully prioritize the use of the cooling tower cooling area.

[0003] Why can't the cooling tower area be fully utilized during low and medium load periods? This is mainly because the cooling tower system is composed of multiple independent cooling towers. When the actual operating flow rate is less than the maximum design flow rate, hydraulic distribution abnormality is particularly serious. The main reasons for hydraulic distribution abnormality are the following two aspects.

[0004] Reason 1: The conventional piping structure has inconsistent distances, resulting in inconsistent resistance losses in each water supply pipe. The pipe with less resistance will get water flow first, and it is impossible to ensure that each cooling tower water inlet system can be evenly distributed with cooling water.

[0005] Reason 2: Water flow potential plus gravity. In all water supply branches, cooling water will flow out first from branches with small water resistance. In theory, as the flow volume increases, the pipe resistance increases, and cooling water will also flow out from branches with large resistance. In fact, in a system with insufficient total volume, branches with large resistance basically cannot flow out. The reason is that we may have overlooked another actual physical property, which is that the flow potential plus gravity causes the resistance of the flowing branch to be smaller, and the flow becomes faster and faster (gravitational acceleration), and the branch with large resistance is even less likely to be allocated water flow.

[0006] The traditional solution is to adjust the valve on the water inlet branch to make a preliminary resistance adjustment, but the result is still that the effect is difficult to guarantee. Even if the water resistance of all branch pipes is adjusted to be consistent, the effect cannot be guaranteed, because the problem lies in which pipe discharges water first, which will lead to the above problems. And when adjusting the water inlet valve, the water outlet resistance of the entire pipeline is greatly increased, which increases the energy consumption of the circulation system.

[0007] According to the above situation, a small flow external water resistance regulating device was invented, but the existing small flow external water resistance regulating device 1. is large in size; 2. is set at the upper end of the cooling tower, protruding from the cooling tower, and is easy to attract lightning; 3. is inconvenient to install and must be installed at a corner, which is labor-intensive to install; 3. When the water volume is large, the water resistance is too large and the energy consumption of the circulation system is high; 4. The outlet negative pressure problem cannot be solved; if the outlet pipe is too long, the effect is not good; 5. The inlet and outlet must be vertical and cannot be installed in a horizontal pipe; 6. The installation requirements are high and the adaptability is poor (it cannot be applied to a built-in cooling tower); 7. The cost is high (in order to overcome the problems of pipeline vibration and wind resistance, high-cost materials need to be used) and the economy is poor. Now a gravity self-regulating hydraulic pressure stabilizing device is designed to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to provide a gravity self-regulating hydraulic pressure stabilizing device to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gravity self-regulating hydraulic pressure stabilizing device, comprising a water inlet pipe, a water outlet pipe, an adjusting box, a fixed fulcrum with a rotating mechanism, a flow limiting device, an external water resistance adjusting device, and a pressure balancing device. A fixed fulcrum with a rotating mechanism is arranged above the water inlet inside the adjusting box, and a flow limiting device is arranged on the fixed fulcrum with the rotating mechanism. The flow limiting device comprises a connecting piece, a water flow resistance plate, and a gravity resistance adjusting block. The water flow resistance plate is installed on the fixed fulcrum with a rotating mechanism through a connecting piece. The water flow resistance plate is connected to the connecting piece at a certain angle. The water flow resistance plate is placed on the water inlet of the water inlet pipe, and the gravity resistance adjusting block is arranged on the water flow resistance plate.

[0010] Preferably, the pressure balancing device comprises a water baffle and a breathing port, wherein the breathing port is arranged on one side above the regulating box, and a water baffle is arranged below the breathing port.

[0011] Preferably, the fixed fulcrum with a rotating mechanism comprises a shaft sleeve, a rotating shaft, a limiting plate and a driven block, the shaft sleeve is fixed to the inner wall of the regulating box, and the rotating shaft is installed in the shaft sleeve through the limiting plate.

[0012] Preferably, a gravity resistance adjustment block is provided on the water flow resistance plate via a connecting shaft, and a knob is provided on the connecting shaft.

[0013] Preferably, the water inlet pipe and the water outlet pipe can be arranged horizontally, or the water inlet pipe and the water outlet pipe can be arranged vertically, and the regulating box is made of a transparent material.

[0014] Preferably, the external water resistance adjustment device includes an adjustment groove, a mounting sleeve, an adjustment shaft, a rotary sleeve, an angle disk, a turntable, a pointer and two magnets, the adjustment groove being correspondingly arranged at the top of the adjustment box, an adjustment shaft being arranged at the upper end of the adjustment groove through the mounting sleeve, a rotary sleeve being connected to the bottom end of the adjustment shaft, the rotary sleeve and the knob fitting together, a turntable being arranged at the top end of the adjustment shaft, an angle disk being arranged on the adjustment shaft, the pointer being arranged on one side of the angle disk, one of the magnets being fixedly mounted on the connecting piece, and the other magnet being mounted on one side of the rotary sleeve, and the magnetic poles of the two magnets repel each other.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention is a gravity self-regulating hydraulic pressure stabilizing device. With the increase of flow rate, the angle between the water flow resistance plate and the water inlet increases, and the horizontal distance between the center of gravity of the water flow resistance plate and the fixed fulcrum with a rotating mechanism increases, resulting in an increase in the pressure of the water flow resistance plate on the water flow. The greater the flow rate, the greater the pressure of the water flow resistance plate on the water flow, and the water flow will flow to other pipes that have not discharged water, thereby ensuring that multiple branches with different resistances are finally balanced under the same or similar water outlet resistance to achieve hydraulic automatic balance adjustment. The internal structure is cleverly designed. After the resistance reaches a value, the reaction resistance remains unchanged, ensuring that the overall pipeline resistance of the pipeline does not increase substantially at a large flow rate. At the same time, the flow rate of the water inlet pipeline can be calculated by the angle at which the water flow resistance plate is lifted.

[0017] 2. The magnet arranged on the external water resistance regulating device acts on the magnet on the connecting piece, thereby giving the water flow resistance plate a nonlinear resistance acting in the opposite direction to the water inlet pipe, further increasing the resistance of the water flow resistance plate to the water flow and expanding the flow range of the liquid supply system applicable to the device.

[0018] 3. Set up a breathing port to ensure the balance of internal and external pressures, solve the problem of negative pressure at the outlet, and maintain the balance of pipeline resistance.

[0019] The invention has the advantages of simple structure, small volume, convenient installation, simple and accurate adjustment, small water resistance, small vibration and low cost, and can be applied to horizontal pipelines, thus having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of a fixed fulcrum and a current limiting device with a rotating mechanism of the present invention;

[0022] Figure 3 It is a schematic diagram of the external water resistance regulating device of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the present invention;

[0024] In the figure: 1. water inlet pipe; 2. water outlet pipe; 3. adjustment box; 4. fixed fulcrum with rotating mechanism; 5. flow limiting device; 6. external water resistance adjusting device; 7. pressure balancing device; 8. water baffle; 9. pointer; 10. connecting piece; 11. water flow resistance plate; 12. connecting shaft; 13. gravity resistance adjusting block; 14. knob; 15. bushing; 16. rotating shaft; 17. limit plate; 18. breathing port; 19. magnet; 20. adjusting slot; 21. mounting sleeve; 22. adjusting shaft; 23. rotating sleeve; 24. angle disk; 25. turntable. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1: Please refer to Figure 1-3The present invention provides a technical solution: a gravity self-regulating hydraulic pressure stabilizing device, comprising a water inlet pipe 1, a water outlet pipe 2, a regulating box 3, a fixed fulcrum 4 with a rotating mechanism, a flow limiting device 5, an external water resistance regulating device 6, and a pressure balancing device 7. A fixed fulcrum 4 with a rotating mechanism is arranged above the water inlet inside the regulating box 3, and a flow limiting device 5 is arranged on the fixed fulcrum 4 with a rotating mechanism. The flow limiting device 5 comprises a connecting piece 10, a water flow resistance plate 11, and a gravity resistance regulating block 13. The water flow resistance plate 11 is installed on the fixed fulcrum 4 with a rotating mechanism through the connecting piece 10, and the water flow resistance plate 11 is connected to the connecting piece 10 at a certain angle. The water flow resistance plate 11 is placed on the water inlet of the water inlet pipe 1, and the gravity resistance regulating block 13 is arranged on the water flow resistance plate.

[0029] Furthermore, the pressure balancing device 7 includes a water baffle plate 8 and a breathing port 18 . The breathing port 18 is arranged on one side above the regulating box 3 , and a water baffle plate 8 is arranged below the breathing port 18 .

[0030] Furthermore, the fixed fulcrum 4 with a rotating mechanism includes a sleeve 15 , a rotating shaft 16 , a limiting plate 17 and a driven block 18 . The sleeve 15 is fixed to the inner wall of the regulating box 3 , and the rotating shaft 16 is installed in the sleeve 15 through the limiting plate 17 .

[0031] Furthermore, a gravity resistance adjustment block 13 is provided on the water flow resistance plate 11 via a connecting shaft 12 , and a knob 14 is provided on the connecting shaft 12 .

[0032] Furthermore, the water inlet pipe 1 and the water outlet pipe 2 are vertically arranged, and the regulating box 3 is made of a transparent material.

[0033] Furthermore, the external water resistance adjusting device 6 includes an adjusting groove 20, a mounting sleeve 21, an adjusting shaft 22, a rotating sleeve 23, an angle disk 24, a rotating disk 25, a pointer 9 and two magnets 19. The adjusting groove 20 is correspondingly arranged at the top of the adjusting box 3. The upper end of the adjusting groove 20 is provided with an adjusting shaft 22 through the mounting sleeve 21. The bottom end of the adjusting shaft 22 is connected with a rotating sleeve 23. The rotating sleeve 23 and the knob 14 fit together. A rotating disk 25 is provided at the top of the adjusting shaft 22. An angle disk 24 is provided on the adjusting shaft 22. The pointer 9 is provided on one side of the angle disk 24. One magnet 19 is fixedly mounted on the connecting member 10, and the other magnet 19 is mounted on one side of the rotating sleeve 23. The magnetic poles of the two magnets 19 repel each other.

[0034] Example 2: Please refer to Figure 4The present invention provides a technical solution: a gravity self-regulating hydraulic pressure stabilizing device, comprising a water inlet pipe 1, a water outlet pipe 2, an adjusting box 3, a fixed fulcrum 4 with a rotating mechanism, a flow limiting device 5, an external water resistance adjusting device 6, and a pressure balancing device 7. A fixed fulcrum 4 with a rotating mechanism is arranged above the water inlet inside the adjusting box 3, and a flow limiting device 5 is arranged on the fixed fulcrum 4 with a rotating mechanism. The flow limiting device 5 comprises a connecting piece 10, a water flow resistance plate 11, and a gravity resistance adjusting block 13. The water flow resistance plate 11 is installed on the fixed fulcrum 4 with a rotating mechanism through the connecting piece 10, and the water flow resistance plate 11 is connected to the connecting piece 10 at a certain angle, and the water flow resistance plate 11 is placed on the water inlet of the water inlet pipe 1.

[0035] Furthermore, the pressure balancing device 7 includes a water baffle plate 8 and a breathing port 18 . The breathing port 18 is arranged on one side above the regulating box 3 , and a water baffle plate 8 is arranged below the breathing port 18 .

[0036] Furthermore, the fixed fulcrum 4 with a rotating mechanism includes a sleeve 15 , a rotating shaft 16 , a limiting plate 17 and a driven block 18 . The sleeve 15 is fixed to the inner wall of the regulating box 3 , and the rotating shaft 16 is installed in the sleeve 15 through the limiting plate 17 .

[0037] Furthermore, a gravity resistance adjustment block 13 is provided on the water flow resistance plate 11 via a connecting shaft 12 , and a knob 14 is provided on the connecting shaft 12 .

[0038] In the initial state, the horizontal distance between the gravity resistance adjusting block 13 and the fixed fulcrum 4 with the rotating mechanism is relatively close, and most of the gravity of the gravity resistance adjusting block is borne by the fixed fulcrum 4. The water outlet resistance of the water inlet pipe is relatively small. When water flows through, the water flow gravity resistance plate is pushed away, so that the horizontal distance between the gravity resistance block 13 and the fixed fulcrum 4 becomes larger, and the proportion of the gravity borne by the fixed fulcrum 4 to the gravity resistance adjusting block 13 is reduced, and the water outlet pressure borne by the pipe outlet gradually increases, so that the greater the water flow, the greater the water outlet resistance of the pipe outlet is achieved.

[0039] Furthermore, the water inlet pipe 1 and the water outlet pipe 2 are arranged horizontally, and the regulating box 3 is made of a transparent material.

[0040] Furthermore, the external water resistance adjusting device 6 includes an adjusting groove 20, a mounting sleeve 21, an adjusting shaft 22, a rotating sleeve 23, an angle disk 24, a rotating disk 25, a pointer 9 and two magnets 19. The adjusting groove 20 is correspondingly arranged at the top of the adjusting box 3. The upper end of the adjusting groove 20 is provided with an adjusting shaft 22 through the mounting sleeve 21. The bottom end of the adjusting shaft 22 is connected with a rotating sleeve 23. The rotating sleeve 23 and the knob 14 fit together. A rotating disk 25 is provided at the top of the adjusting shaft 22. An angle disk 24 is provided on the adjusting shaft 22. The pointer 9 is provided on one side of the angle disk 24. One magnet 19 is fixedly mounted on the connecting member 10, and the other magnet 19 is mounted on one side of the rotating sleeve 23. The magnetic poles of the two magnets 19 repel each other.

[0041] Working principle: The present invention discloses a gravity self-regulating hydraulic pressure stabilizing device, which is applied to a cooling tower system in an industrial system, and usually two or more such devices are installed.

[0042] Because the fixed fulcrum 4 with the rotating mechanism and the water flow resistance plate 11 are not on the same vertical line, and an angle is formed between the water flow resistance plate 11 and the connector 10. Assuming that there are device A and device B, device A is closer to the cooling tower, causing most of the water flow to enter device A, making the water flow rate of the water inlet pipe of device A larger, and the water flow rate of the water inlet pipe of device B smaller. When the water flow enters the water inlet pipe of device A at the beginning, the water flow rate at the water inlet increases from a small amount, causing the angle between the water flow resistance plate of device A and the fixed fulcrum with the rotating mechanism to increase, causing the center of gravity of the water flow resistance plate 11 and the fixed fulcrum 4 with the rotating mechanism to increase the horizontal distance, causing the water flow pressure of the water flow resistance plate of device A on the water inlet pipe to increase, slowing down the water flow growth rate of the water inlet pipe of device A, and allocating part of the water flow to the water inlet pipe of device B, thereby increasing the water flow rate of the water inlet pipe of device B, and achieving the water flow balance of the water inlet pipes of device A and device B.

[0043] The breathing port 18 disposed at the top of the regulating box 3 can ensure the balance of internal and external pressures, solve the problem of negative pressure at the outlet, and maintain the balance of pipeline resistance.

[0044] The magnet 19 on the rotary sleeve 23 of the external water resistance regulating device acts on the magnet 19 on the connecting piece 10, thereby giving the water flow resistance plate 11 a nonlinear resistance to act in the opposite direction on the water inlet pipe 1, so that the larger the flow rate, the greater the reaction resistance, thereby ensuring that multiple branches with different resistances are finally balanced under the same or similar water outlet resistance to achieve hydraulic automatic balance adjustment. At the same time, the rotary sleeve 23 is rotated by the turntable 25 in the external resistance regulating device 6, so that the position of the magnet 19 on the rotary sleeve 23 and the magnet 19 on the connecting piece 10 is offset from This changes the resistance of the magnet 19 on the rotary sleeve 23 to the magnet 19 on the connecting piece 10, thereby being able to adjust the water flow resistance. Because the connecting piece 10 is connected to the water flow resistance plate 11 at a certain angle, the water flow resistance plate 11 is vertically placed on the water inlet of the water inlet pipe 1 when no water flows through, thereby achieving effective flow resistance. At the same time, the water outlet pipe 2 can be set on the left side of the regulating box 3 or at the bottom of the regulating box 3, preferably at the bottom of the regulating box 3. The gravity resistance adjusting block 13 arranged on the water flow resistance plate 11 can also be of other shapes.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gravity self-regulating hydraulic pressure stabilizing device, characterized in that: The invention comprises a water inlet pipe (1), a water outlet pipe (2), a regulating box (3), a fixed fulcrum (4) with a rotating mechanism, a flow limiting device (5), an external water resistance regulating device (6), and a pressure balancing device (7); a fixed fulcrum (4) with a rotating mechanism is arranged above the water inlet inside the regulating box (3); a flow limiting device (5) is arranged on the fixed fulcrum (4) with the rotating mechanism; the flow limiting device (5) comprises a connecting piece (10), a water flow resistance plate (11), and a gravity resistance regulating block (13); the water flow resistance plate (11) is mounted on the fixed fulcrum (4) with the rotating mechanism through the connecting piece (10); the water flow resistance plate (11) is connected to the connecting piece (10) at a certain angle; the water flow resistance plate (11) is placed on the water inlet of the water inlet pipe (1); and the gravity resistance regulating block (13) is arranged on the water flow resistance plate; The external water resistance regulating device (6) comprises an regulating groove (20), a mounting sleeve (21), an regulating shaft (22), a rotating sleeve (23), an angle disc (24), a rotating disc (25), a pointer (9) and two magnets (19); the regulating groove (20) is correspondingly arranged at the top end of the regulating box (3); the upper end of the regulating groove (20) is provided with an regulating shaft (22) through the mounting sleeve (21); the bottom end of the regulating shaft (22) is connected with a rotating sleeve (23); the rotating sleeve (23) and the knob (14) fit each other; the top end of the regulating shaft (22) is provided with a rotating disc (25); the regulating shaft (22) is provided with an angle disc (24); the pointer (9) is arranged on one side of the angle disc (24); one magnet (19) is fixedly mounted on the connecting member (10); the other magnet (19) is mounted on one side of the rotating sleeve (23); and the magnetic poles of the two magnets (19) repel each other.

2. A gravity self-regulating hydraulic pressure stabilizing device according to claim 1, characterized in that: The pressure balancing device (7) comprises a water baffle (8) and a breathing port (18), wherein the breathing port (18) is arranged on one side above the regulating box (3), and a water baffle (8) is arranged below the breathing port (18).

3. The gravity self-regulating hydraulic pressure stabilizing device according to claim 1, characterized in that: The fixed fulcrum (4) with a rotating mechanism comprises a shaft sleeve (15), a rotating shaft (16), and a limiting plate (17); the shaft sleeve (15) is fixed to the inner wall of the adjustment box (3); and the rotating shaft (16) is installed in the shaft sleeve (15) via the limiting plate (17).

4. The gravity self-regulating hydraulic pressure stabilizing device according to claim 1, characterized in that: A gravity resistance adjustment block (13) is provided on the water flow resistance plate (11) via a connecting shaft (12), and a knob (14) is provided on the connecting shaft (12).

5. The gravity self-regulating hydraulic pressure stabilizing device according to claim 1, characterized in that: The regulating box (3) is made of transparent material.

Images