Automatic siphon device for controlling large-flow liquid discharge through small-flow liquid inlet and use method of automatic siphon device

Abstract

The invention discloses an automatic siphon device for controlling large-flow liquid discharge through small-flow liquid inlet. The automatic siphon device comprises a siphon pipe. The upper part of the siphon is bent and extends below the liquid level to be drained; a liquid outlet is formed in the side surface of the lower part of the siphon; a piston is arranged in the siphon; a magnet is arranged in the piston; an armature attracted with the magnet is also arranged in the siphon; an exhaust pipe is arranged on the piston; and the exhaust pipe penetrates through the lower part of the piston and extends into the siphon. According to the device, small-flow liquid feeding can be utilized, large-flow liquid discharging is achieved, liquid discharging is automatically stopped after the liquid reaches the set liquid level, liquid discharging is conducted again after the liquid reaches the set liquid level along with rising of the outer liquid level, the process is repeated continuously, and the device is quite suitable for water changing and pollution discharging of the land-based aquatic product culture pond.

Description

Technical Field

[0001] The present invention belongs to the technical field of drain valves, and in particular relates to an automatic siphon device for controlling large-flow liquid discharge with small-flow liquid intake and a use method thereof. Background Art

[0002] A common way of draining sewage in land-based aquaculture is to manually pull out the pipe or manually start the valve to drain the sewage. The disadvantage is that it requires a lot of work and has a great risk of error. The second way of draining sewage is to use a pneumatic automatic sewage discharge device, which requires compressed air as the power to open and close the drainage valve and is controlled by a control circuit. The whole system is relatively complex and prone to failure. The third is a simple siphon drainage, which automatically discharges when the external liquid surface reaches a certain level and stops automatically when the set drainage volume is reached. However, this device has high requirements for the inlet flow rate of the external liquid surface. The inlet flow rate must basically reach the drainage flow rate to trigger siphoning. In actual production, if the inlet flow rate and the drainage flow rate are basically equal, there is no need to drain the liquid at all. Therefore, this type of siphon drainage device cannot be used in the drainage of such fish ponds. The advantage of this device is that it can use a small flow rate to inlet liquid, so that the system suddenly discharges a large flow rate after reaching the set liquid level, and automatically stops draining after reaching the set liquid level. As the external liquid level rises and reaches the set liquid level, it will drain again, and this cycle will continue. Summary of the invention

[0003] The purpose of the present invention is to address the problems that the siphon drainage device in the prior art has a high requirement for the inlet flow rate to start the drainage and is not suitable for the drainage of land-based fish ponds. An automatic siphon device with a small inlet flow to control a large discharge flow and a method of using the same are proposed. The device of the present invention can use a small inlet flow to achieve a large discharge flow, automatically stop the discharge after reaching the set liquid level, and discharge again after the external liquid level rises to reach the set liquid level, and so on. The cycle is continuous and reciprocating, and is very suitable for the drainage of land-based aquatic product breeding ponds.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An automatic siphon device for controlling large-flow liquid discharge by small-flow liquid intake comprises a siphon tube; the upper part of the siphon tube is bent and extends below the surface of liquid to be discharged; a liquid outlet is provided on the lower side of the siphon tube; a piston is provided in the siphon tube; a magnet is provided in the piston; an armature attracted to the magnet is also provided in the siphon tube; an exhaust pipe is provided on the piston; the exhaust pipe passes through the lower part of the piston and extends into the upper part of the siphon tube.

[0006] The upper part of the siphon is bent and passed under the liquid surface of the fish pond. When the liquid surface in the fish pond exceeds the lowest point of the bent part of the siphon, water enters the siphon and the air in the tube is discharged from the exhaust pipe. The water in the siphon accumulates continuously. When the gravity of the water in the siphon is greater than the sum of the suction force of the armature and the magnet and the friction force of the piston on the inside of the siphon, the piston moves downward until the piston reaches below the liquid outlet. At this time, the water in the siphon is discharged from the liquid outlet, the pressure in the siphon is reduced instantly, and the water in the pool is pressed into the siphon under atmospheric pressure, so that a small amount of liquid is triggered to drain a large amount of water. When the water level in the pool to be drained is lower than the siphon orifice, air enters the siphon, destroying the siphon effect, the siphon stops, the piston returns to the top of the liquid outlet, and the drainage is closed.

[0007] As a further technical improvement, the armature is connected with a fixing frame; the fixing frame is connected with the inner wall of the siphon; the fixing frame is provided with a through slot through which water can flow. The fixing frame is used to install the armature; the water in the siphon can flow out through the through slot; the fixing frame can be a thin bracket, which ensures that the gap between the fixing frame and the inner wall of the siphon, i.e., the through slot, is large enough to not affect the flow of water while ensuring stability.

[0008] As a further technical improvement, it also includes a piston top force adjustment shaft; the lower end of the piston top force adjustment shaft is connected to the piston, and the middle part passes through the armature and the fixing frame; the upper part of the piston top force adjustment shaft is provided with an adjustment nut; an adjustment spring is sleeved on the piston top force adjustment shaft between the adjustment nut and the fixing frame. The piston top force adjustment shaft can move with the piston; the adjustment nut is rotated to change the compression amount of the adjustment spring. The greater the compression amount of the adjustment spring, the greater the force of the adjustment nut, the piston top force adjustment shaft and the piston to push upward, thereby adjusting the pressure on the piston when it is pressed downward by water, that is, adjusting the amount of liquid required when the siphon starts to drain; at this time, the piston can only be pushed open when the pressure of the water in the siphon on the piston is greater than the sum of the suction force of the armature and the magnet plus the friction force on the piston plus the elastic force of the spring pushing upward.

[0009] As a further technical improvement, it also includes a siphon liquid level control tube; one end of the siphon liquid level control tube is connected to the top of the upper curved part of the siphon tube, and the other end is bent and extends below the surface of the liquid to be discharged. The siphon liquid level control tube is used to control the liquid level of the siphon start and stop, that is, the outside air will not enter the siphon tube when the liquid level in the fish pond is higher than the pipe mouth of the siphon liquid level control tube, and the siphon can be realized; on the contrary, when the liquid level in the fish pond is lower than the pipe mouth of the siphon liquid level control tube, air will enter the siphon tube, the siphon effect will be destroyed, and the siphon will stop; therefore, the position of the pipe mouth of the siphon liquid level control tube is adjusted to adjust the liquid level in the fish pond to stop the siphon drainage.

[0010] As a further technical improvement, a detachable bottom tube is provided at the lower part of the siphon tube; the connection position of the bottom tube and the siphon tube body is higher than the fixed position of the armature. The bottom tube can be connected to the siphon tube by threaded connection or the like, and is sealed with a sealing ring; the connection position of the bottom tube and the siphon tube is on the fixing frame, so that the fixing frame, the armature, the piston, the magnet and the piston force adjustment shaft are all located on the bottom tube, and the adjusting nut can be rotated after the bottom tube is removed, so as to control the amount of water in the siphon tube that pushes the piston open; the liquid outlet is located at the lower part of the bottom tube.

[0011] As a further technical improvement, the exhaust pipe extends to the curved part of the upper part of the siphon pipe. The inlet of the exhaust pipe exceeds the lowest point of the curved part of the upper part of the siphon pipe, so that the water level in the siphon pipe is sufficient to push open the piston, and will not enter the exhaust pipe before pushing open the piston.

[0012] As a further technical improvement, the siphon liquid level control tube is a movable tube, and its opening position is adjustable. The siphon liquid level control tube can be a telescopic tube or a bendable gooseneck tube, etc., as long as the opening position can be adjusted.

[0013] As a further technical improvement, the upper part of the piston force adjustment shaft is provided with threads; the adjustment nut is movably arranged on the piston force adjustment shaft through the threads. The adjustment nut can be moved to different positions of the piston force adjustment shaft through the threads, and as the adjustment nut moves, the adjustment spring can be compressed to different lengths by the adjustment nut.

[0014] The method of using the automatic siphon device described above for controlling large-flow liquid discharge by small-flow liquid inlet is as follows:

[0015] Generate siphon drainage: when in use, extend the curved part of the siphon tube below the liquid surface of the pool to be drained; as the water level in the pool to be drained continues to rise, when the liquid level in the pool reaches and exceeds the lowest position of the curved section of the siphon tube, the water will enter the siphon tube, and the air in the siphon tube will be discharged from the exhaust pipe; because the piston is blocked at a position above the liquid outlet below the siphon tube, the liquid level in the siphon tube continues to rise, and as the amount of water increases, the pressure of the water in the siphon tube on the piston continues to increase; when the amount of water in the siphon tube is large enough, the downward pressure of the water on the piston is greater than the sum of the suction force of the armature and the magnet, the friction force of the piston on the pipe wall, and the elastic force of the adjusting spring pushing upward, at this time, the magnet and the armature suddenly separate, the piston is pushed downward, and the piston exceeds the position of the liquid outlet, causing the water in the siphon tube to instantly flow out of the liquid outlet in large quantities; this causes a sharp drop in the pressure in the siphon tube, and the water in the pool to be drained is pressed into the siphon tube under atmospheric pressure and discharged from the liquid outlet, achieving the effect of small flow inlet in the siphon tube starting large flow drainage;

[0016] Siphon drainage stops: adjust the position of the siphon liquid level control pipe orifice. When the water level of the pool to be drained drops below the position of the siphon liquid level control pipe orifice, air enters the siphon pipe 1, destroying the vacuum in the pipe, and the siphon drainage stops, thereby controlling the siphon drainage stop level. At this time, there is no water flow impacting the piston. Under the action of the spring force and the suction force of the magnet and the armature, the piston moves upward until the magnet and the armature are completely attracted, and the lower part of the siphon pipe is sealed again.

[0017] Siphon drainage again: Since the pool to be drained is no longer siphoning, the liquid level starts to rise again with the continuous increase of the inflow flow rate, until the liquid level exceeds the lowest position of the curved section of the siphon pipe, and a new siphon drainage process begins, and so on;

[0018] Siphon drainage start adjustment: Before the above-mentioned use process, you can also change the upward elastic force of the adjusting spring on the piston by turning the adjusting nut, thereby changing the amount of siphon starting water accumulated in the siphon tube; adjust the position of the siphon liquid level control tube outlet to adjust the siphon water level depth.

[0019] The technical solution of the present invention has the following beneficial effects:

[0020] 1. This device can achieve sealing in the siphon tube through components such as pistons, magnets, armatures, and adjusting springs. When there is enough water in the siphon tube, the piston is pushed open and siphon drainage begins, thereby achieving small flow liquid inlet to start large flow liquid discharge, making it easier to start siphon drainage and water exchange in land-based fish ponds, and simple and convenient to use.

[0021] 2. This device can change the force required for the piston to be flushed open by water by adjusting the spring and the adjusting nut, thereby controlling the start of the siphon effect of the siphon tube, making the entire siphon drainage adjustable, which is beneficial for users to adjust the use according to actual conditions.

[0022] 3. This device can control the stop liquid level of the siphon effect through the siphon liquid level control tube, thereby controlling the liquid level in the pool to be drained, so that the siphon drainage effect of the siphon tube can be automatically reciprocated.

[0023] 4. This device uses a simple mechanical structure to control a small flow rate to drain a large flow rate. It has a simple and ingenious structure, does not require electricity, has low cost, and a low failure rate. It is very suitable for sewage drainage and water exchange in fish ponds. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0025] Figure 1 It is the overall structural diagram of this device.

[0026] Figure 2 Schematic diagram of the bottom tube and its internal structure.

[0027] Figure numerals: 1-siphon, 2-liquid outlet, 3-piston, 4-magnet, 5-armature, 6-fixed frame, 7-piston top force adjustment shaft, 8-adjusting spring, 9-adjusting nut, 10-exhaust pipe, 11-siphon liquid level control pipe, 12-pool body to be drained, 13-lowest position of the bending section, 14-position of the siphon liquid level control pipe outlet, 15-bottom pipe. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment 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.

[0029] Embodiment 1:

[0030] like Figures 1-2 As shown, an automatic siphon device for controlling large-flow liquid discharge by small-flow liquid intake comprises a siphon tube 1; the upper part of the siphon tube 1 is bent and extends under the surface of liquid to be discharged; a liquid outlet 2 is provided on the lower side of the siphon tube 1; a piston 3 is provided in the siphon tube 1; a magnet 4 is provided in the piston 3; an armature 5 attracted to the magnet 4 is also provided in the siphon tube 1; an exhaust pipe 10 is provided on the piston 3; the exhaust pipe 10 passes through the lower part of the piston 3 and extends into the upper part of the siphon tube 1.

[0031] The armature 5 is connected to a fixing frame 6 ; the fixing frame 6 is connected to the inner wall of the siphon 1 ; the fixing frame 6 is provided with a channel through which water can flow.

[0032] It also includes a piston top force adjustment shaft 7; the lower end of the piston top force adjustment shaft 7 is connected to the piston 3, and the middle part passes through the armature 5 and the fixing frame 6; the upper part of the piston top force adjustment shaft 7 is provided with an adjusting nut 9; and an adjusting spring 8 is sleeved on the piston top force adjustment shaft 7 between the adjusting nut 9 and the fixing frame 6.

[0033] It also includes a siphon liquid level control tube 11; one end of the siphon liquid level control tube 11 is connected to the upper part of the siphon tube 1, and the other end extends below the surface of the liquid to be discharged.

[0034] A detachable bottom tube 15 is provided at the lower part of the siphon tube 1 ; the connection position between the bottom tube 15 and the main body of the siphon tube 1 is higher than the fixing position of the armature 5 .

[0035] The exhaust pipe 10 extends into the curved portion of the upper portion of the siphon pipe 1 .

[0036] The method of use of the present invention is as follows:

[0037] Generate siphon drainage: When in use, extend the curved part of the siphon tube 1 below the liquid surface of the pool body 12 to be drained; as the water level in the pool body 12 to be drained continues to rise, when the liquid level in the pool reaches and exceeds the lowest position 13 of the curved section of the siphon tube, water will enter the siphon tube 1, and the air in the siphon tube 1 will be discharged from the exhaust pipe 10; because the piston 3 is blocked at a position above the liquid outlet 2 below the siphon tube 1, the liquid level in the siphon tube 1 continues to rise, and as the amount of water increases, the pressure of the water in the siphon tube 1 on the piston 3 continues to increase; when the amount of water in the siphon tube 1 is sufficient, , the downward pressure of the water on the piston 3 is greater than the sum of the suction force of the armature 5 and the magnet 4, the friction force of the piston 3 on the pipe wall, and the elastic force of the adjusting spring 8 pushing upward. At this time, the magnet 4 and the armature 5 suddenly separate, the piston 3 is pushed downward, and the piston 3 exceeds the position of the liquid outlet 2, so that the water in the siphon 1 instantly flows out of the liquid outlet 2 in large quantities; this causes a sharp drop in the pressure in the siphon 1, and the water in the pool body 12 to be drained is pressed into the siphon 1 under atmospheric pressure and discharged from the liquid outlet 2, so that the small flow of liquid inlet in the siphon 1 starts the large flow of drainage;

[0038] Stop siphon drainage: adjust the position 14 of the siphon liquid level control pipe orifice. When the water level of the pool body 12 to be drained drops below the position 14 of the siphon liquid level control pipe orifice, air enters the siphon pipe 1, destroying the vacuum in the pipe, and the siphon drainage stops, thereby controlling the siphon drainage stop level; at this time, no water flow impacts the piston 3. Under the action of the elastic force of the regulating spring 8 and the suction force of the magnet 4 and the armature 5, the piston 3 moves upward until the magnet 4 and the armature 5 are completely attracted, and the lower part of the siphon pipe 1 is sealed again;

[0039] Siphon drainage again: Since the water tank 12 to be drained no longer siphons water, the liquid level starts to rise again with the continuous increase of the inflow flow rate, until the liquid level exceeds the lowest position 13 of the curved section of the siphon pipe, and a new siphon drainage process begins, and so on;

[0040] Siphon drainage start adjustment: Before the above-mentioned use process, the upward elastic force of the adjusting spring 8 on the piston 3 can be changed by rotating the adjusting nut 9, thereby changing the amount of siphon start water accumulated in the siphon tube 1; adjusting the position of the siphon liquid level control pipe outlet to adjust the siphon water level depth.

[0041] Embodiment 2:

[0042] The difference between this embodiment and the first embodiment is that the siphon liquid level control tube 11 is a movable tube, and its opening position is adjustable.

[0043] The method of use of this embodiment is the same as that of the first embodiment.

[0044] Embodiment three:

[0045] The difference between this embodiment and the second embodiment is that: the upper portion of the piston top force adjusting shaft 7 is provided with threads; and the adjusting nut 9 is movably arranged on the piston top force adjusting shaft 7 through the threads.

[0046] The method of use of this embodiment is the same as that of the first embodiment.

[0047] Embodiment 4:

[0048] The difference between this embodiment and the third embodiment is that the siphon liquid level control tube 11 is a movable tube, and its opening position is adjustable. The upper part of the piston top force adjustment shaft 7 is provided with threads; and the adjustment nut 9 is movably arranged on the piston top force adjustment shaft 7 through the threads.

[0049] The method of use of this embodiment is the same as that of the first embodiment.

[0050] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

[0051] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inside", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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 an indirect connection 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 terms in the present invention can be understood according to specific circumstances.

Claims

1. An automatic siphon device for controlling large-flow liquid discharge by small-flow liquid inlet, characterized in that: The invention comprises a siphon tube (1); the upper part of the siphon tube (1) is bent and extends below the surface of the liquid to be discharged; a liquid outlet (2) is provided on the side of the lower part of the siphon tube (1); a piston (3) is provided in the siphon tube (1); a magnet (4) is provided in the piston (3); an armature (5) attracted to the magnet (4) is also provided in the siphon tube (1); an exhaust pipe (10) is provided on the piston (3); the exhaust pipe (10) passes through the lower part of the piston (3) and extends into the upper part of the siphon tube (1).

2. The automatic siphon device for controlling large flow discharge by small flow liquid inlet according to claim 1 is characterized in that: The armature (5) is connected to a fixing frame (6); the fixing frame (6) is connected to the inner wall of the siphon tube (1); and the fixing frame (6) is provided with a channel through which water can flow.

3. The automatic siphon device for controlling large flow discharge by small flow liquid inlet according to claim 2 is characterized by: It also includes a piston top force adjustment shaft (7); the lower end of the piston top force adjustment shaft (7) is connected to the piston (3), and the middle part passes through the armature (5) and the fixing frame (6); the upper part of the piston top force adjustment shaft (7) is provided with an adjustment nut (9); and an adjustment spring (8) is sleeved on the piston top force adjustment shaft (7) between the adjustment nut (9) and the fixing frame (6).

4. The automatic siphon device for controlling large flow discharge by small flow liquid inlet according to claim 1 is characterized in that: It also comprises a siphon liquid level control tube (11); one end of the siphon liquid level control tube (11) is connected to the upper part of the siphon tube (1), and the other end extends below the surface of the liquid to be discharged.

5. The automatic siphon device for controlling large flow discharge by small flow liquid inflow according to claim 1 is characterized in that: A detachable bottom tube (15) is provided at the lower part of the siphon tube (1); the connection position between the bottom tube (15) and the main body of the siphon tube (1) is higher than the fixing position of the armature (5).

6. The automatic siphon device for controlling large flow discharge by small flow liquid inlet according to claim 1 is characterized in that: The exhaust pipe (10) extends into the curved portion of the upper part of the siphon pipe (1).

7. The automatic siphon device for controlling large flow discharge by small flow liquid inlet according to claim 4 is characterized in that: The siphon liquid level control tube (11) is a movable tube, and its opening position is adjustable.

8. The automatic siphon device for controlling large flow rate discharge by small flow rate liquid inflow according to claim 3 is characterized in that: The upper portion of the piston top force adjustment shaft (7) is provided with a thread; the adjustment nut (9) is movably arranged on the piston top force adjustment shaft (7) via the thread.

9. The method for using the automatic siphon device for controlling large-flow liquid discharge by small-flow liquid inlet according to any one of claims 1 to 8, characterized in that: The following steps are involved: 1) Produce siphon drainage: when in use, the curved portion of the siphon tube (1) is extended below the liquid surface of the pool body (12) to be drained; as the water level in the pool body (12) to be drained continues to rise, when the liquid level in the pool reaches and exceeds the lowest position of the curved section of the siphon tube (1), water will enter the siphon tube (1), and the air in the siphon tube (1) will be discharged from the exhaust pipe (10); because the piston (3) is blocked at a position above the liquid outlet (2) below the siphon tube (1), the liquid level in the siphon tube (1) continues to rise, and as the amount of water increases, the pressure of the water in the siphon tube (1) on the piston (3) continues to increase; when the amount of water in the siphon tube (1) is sufficient, the water will flow out of the siphon tube (1) and the piston (3) will be discharged. The downward pressure on the piston (3) is greater than the sum of the suction force of the armature (5) and the magnet (4), the friction force of the piston (3) on the pipe wall, and the elastic force of the adjusting spring (8) pushing upward. At this time, the magnet (4) and the armature (5) suddenly separate, the piston (3) is pushed downward, and the piston (3) exceeds the position of the liquid outlet (2), so that the water in the siphon (1) instantly flows out from the liquid outlet (2) in large quantities; this causes the pressure in the siphon (1) to drop sharply, and the water in the pool body (12) to be drained is pressed into the siphon (1) under atmospheric pressure and discharged from the liquid outlet (2), so that the small flow of liquid inlet in the siphon (1) starts the large flow of drainage; 2) Stopping siphon drainage: adjusting the position of the siphon liquid level control pipe orifice. When the water level of the pool (12) to be drained drops below the position of the siphon liquid level control pipe orifice, air enters the siphon pipe 1, destroying the vacuum in the pipe and stopping the siphon drainage, thereby controlling the siphon drainage stop level. At this time, no water flow impacts the piston (3). Under the action of the elastic force of the adjustment spring (8) and the suction force of the magnet (4) and the armature (5), the piston (3) moves upward until the magnet (4) and the armature (5) are completely attracted, and the lower part of the siphon pipe (1) is sealed again. 3) Siphon drainage again: Since the water in the drainage pool (12) is no longer siphoning, the liquid level starts to rise again with the continuous increase of the inflow flow rate until the liquid level exceeds the lowest position of the curved section of the siphon pipe and a new siphon drainage process begins, and this cycle repeats; 4) Adjustment of siphon drainage start-up: Before the above-mentioned use process, the adjustment nut (9) can be rotated to change the upward elastic force of the adjustment spring (8) on the piston (3), thereby changing the amount of siphon start-up water accumulated in the siphon tube (1); the position of the siphon liquid level control tube outlet is adjusted to adjust the siphon water level depth.

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