A split type variable water level control device

Abstract

The present invention provides a split type variable water level control device, comprising: a water tank, wherein a water retention baffle is arranged inside the water tank to divide the water tank into a water replenishment side and a water outlet side, and a water through hole is arranged at the lower part of the water retention baffle; a water level balancing cylinder, wherein the water level balancing cylinder is arranged below the water tank, and the height of the water level balancing cylinder can be adjusted arbitrarily; a water pipe, wherein one end of the water pipe passes through the side wall of the water outlet side and enters the interior of the water tank, and a second water pipe orifice at the other end of the water pipe is connected to the water inlet of the water level balancing cylinder, and the highest point of the water pipe is lower than the highest point of the water level in the water tank; the water flow rate per unit time passing through the water through hole is less than the water flow rate per unit time in the water pipe; the device can realize continuous circulation of the water supply and replenishment process, the height of the water level balancing cylinder can be adjusted arbitrarily, the installation is convenient, the adjustment is flexible, and the device is applicable to a variety of water consumption and water supply systems.

Description

Technical Field

[0001] The invention belongs to the technical field of water level control, and in particular relates to a split type variable water level control device. Background Art

[0002] In indoor scientific experiments or in the field of crop growth and cultivation, continuous water supply is usually required. The water supply height requirements vary according to the actual situation, which leads to the need to set up water tanks of different heights for different usage needs. The water tank is used as a replenishment and storage container, and the height of the water tank will affect the water level balance height of the water-demanding device.

[0003] The height of a traditional water tank must be set according to the required water level of the water demanding device, which makes the installation of the water tank and the water level adjustment inflexible.

[0004] Therefore, it is necessary to provide a new technical solution to address the above-mentioned deficiencies in the prior art. Summary of the invention

[0005] The object of the present invention is to provide a split type variable water level control device to at least solve the problem that the installation height of the current water storage tank cannot be adjusted, resulting in inflexible installation and water level adjustment.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A split type variable water level control device, the control device comprising:

[0008] A water storage tank, wherein a water retention baffle is arranged inside the water storage tank, the water retention baffle divides the water storage tank into a water supply side and a water outlet side, a water through hole is arranged at the lower part of the water retention baffle, and water in the water supply side and the water outlet side can flow through the water through the water through hole; a water supply port for water inlet is arranged on the side wall of the water supply side;

[0009] A water level balance cylinder, which is arranged below the water storage tank, the height of which can be adjusted arbitrarily, and the water supply port of which is connected to the water demand device;

[0010] A water pipe, one end of which passes through the side wall of the water outlet side of the water tank and enters the interior of the water tank, and a first water pipe opening located inside the water tank faces downward, and a second water pipe opening at the other end of the water pipe is connected to the water inlet of the water level balancing cylinder, and the highest point of the water pipe is lower than the highest point of the water level in the water tank; the water flow rate per unit time passing through the water hole is less than the water flow rate per unit time in the water pipe.

[0011] In the split-type variable water level control device as described above, preferably, a float limit valve is provided at the water replenishment port, and the float limit valve can automatically control the water replenishment process so that the maximum height of the water level in the water tank reaches the first equilibrium water level.

[0012] In the split-type variable water level control device as described above, preferably, the volume between the first balanced water level on the water outlet side of the water storage tank and the edge of the first water pipe outlet is V1, and the volume of the space above the second balanced water level in the water level balance cylinder is V2, and V1 and V2 satisfy the relationship: V1≤V2.

[0013] In the split-type variable water level control device as described above, preferably, the opening of the first water pipe is a trumpet-shaped opening opening downward.

[0014] In the split-type variable water level control device as described above, preferably, the water pipe is a hose.

[0015] In the split-type variable water level control device as described above, preferably, the diameter of the water pipe is 10-15 mm.

[0016] In the split type variable water level control device as described above, preferably, the device further comprises a hanging rack, a plurality of hanging holes are arranged on the hanging rack from top to bottom, and the water level balance cylinder can be installed in the hanging holes.

[0017] In the split variable water level control device as described above, preferably, the device also includes a slide rail, the slide rail is vertically arranged, the water level balance cylinder is arranged on the slide rail, and can move up and down along the slide rail and can stay at any position of the slide rail.

[0018] In the split type variable water level control device as described above, preferably, a plurality of water holes are provided, and the plurality of water holes are distributed at intervals in the lower part of the water retention baffle.

[0019] In the split type variable water level control device as described above, preferably, the water holes are provided in a plurality of rows, each row is provided with a plurality of water holes, and the hole diameter of the water holes is 1-2 mm.

[0020] Compared with the closest prior art, the technical solution provided by the present invention has the following excellent effects:

[0021] In the split-type variable water level control device of the present invention, the water tank and the water level balance cylinder are connected by a hose water pipe, and the height of the water level balance cylinder can be adjusted arbitrarily, which is convenient for installation and flexible to adjust. The height can be flexibly adjusted according to the water level height requirements of different water-demanding devices, thereby achieving the purpose of dynamic change of the water supply level.

[0022] A float limit valve is provided in the water tank, which can be automatically opened and closed during the water replenishment process; the interior of the water tank is divided into two areas by a porous water-retaining baffle, which plays a role in buffering the retained water and ensuring that the hydraulic connection between the water tank and the water pipe is cut off in time and effectively, and water is supplied to the water-demanding device through the water level balance cylinder in the middle; the pipe mouth of the water pipe on the water outlet side of the water tank is a trumpet-shaped open design, which can achieve the purpose of rapid and effective water sealing and air sealing.

[0023] The variable water level control device of the present invention can realize continuous circulation of the water supply and replenishment process, can adjust the height of the water level balance cylinder according to the use requirements of the water demand device, is easy to install, flexible to adjust, and is suitable for various water consumption and supply systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0025] Figure 1 It is a schematic structural diagram of a split-type variable water level control device according to an embodiment of the present invention.

[0026] In the figure: 1. water storage tank; 11. water replenishment port; 2. water level balance cylinder; 21. water supply port; 3. water pipe; 31. first water pipe outlet; 32. second water pipe outlet; 4. water retention baffle; 41. water hole; 5. float limit valve; 6. first balanced water level; 7. second balanced water level; 8. water demand device; 9. hanger; 91. hanging hole. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0028] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] like Figure 1As shown, according to an embodiment of the present invention, a split type variable water level control device is provided, and the control device comprises:

[0030] A water storage tank 1 is provided with a water retention baffle 4 inside the water storage tank 1, and the water retention baffle 4 divides the water storage tank 1 into two areas, namely a water replenishment side and a water outlet side. The water replenishment side is used for replenishing water, and the water outlet side is used for discharging water and generating an intermittent siphon effect; a water through hole 41 is provided at the lower part of the water retention baffle 4, and the water flow in the water replenishment side can slowly flow into the water outlet side through the water through hole 41, and a water replenishment port 11 for water inlet is provided on the side wall of the water replenishment side, and the water replenishment port 11 is connected to a water source to replenish water into the water storage tank 1.

[0031] The water level balancing cylinder 2 is arranged below the water storage tank 1 , and the height of the water level balancing cylinder 2 can be adjusted arbitrarily. The water supply port 21 of the water level balancing cylinder 2 is connected to the water demanding device 8 , and the water in the water level balancing cylinder 2 flows into the water demanding device 8 through the water supply port 21 .

[0032] A water pipe 3, one end of which passes through the side wall of the water outlet side of the water tank 1 and enters the interior of the water tank 1, and a first water pipe opening 31 located inside the water tank 1 faces downward, and a second water pipe opening 32 at the other end of the water pipe 3 is connected to the water inlet of the water level balance cylinder 2. The highest point of the water pipe 3 is lower than the highest point of the water level in the water tank 1, that is, when the water supply is in a stable state, the water pipe 3 can be completely immersed in water to ensure the generation of a siphon effect; preferably, the water flow rate per unit time through the water hole 41 is less than the water flow rate per unit time in the water pipe 3, to ensure that the hydraulic connection between the water tank 1 and the first water pipe opening 31 can be cut off, to generate a periodic siphon effect, and to achieve pulsed automatic water supply.

[0033] In a specific embodiment of the present invention, a float limit valve 5 is provided at the water replenishment port 11, and the float limit valve 5 can automatically control the water replenishment process. The water replenishment process can be automatically opened or closed, and the maximum water level in the water storage tank 1 reaches the first balance water level 6, which is the water replenishment stop water level.

[0034] In a specific embodiment of the present invention, the vertical distance from the first balanced water level 6 in the water storage tank 1 to the edge of the first water pipe orifice 31 is H1, and the vertical distance from the lower edge of the second water pipe orifice 32 to the second balanced water level 7 in the water level balance cylinder 2 is H2, and the two change dynamically. When the water level control device and the water demand device 8 reach a balanced state, and the water demand device 8 does not consume water, the water level height of the water demand device 8 is the same as the second balanced water level 7 in the water level balance cylinder 2, and is at the same horizontal height, and the siphon effect stops at this time, and H1≤H2.

[0035] In a specific embodiment of the present invention, the volume between the first balanced water level 6 on the water outlet side of the water storage tank 1 and the edge of the first water pipe orifice 31 is V1, and the volume of the space above the second balanced water level 7 in the water level balance cylinder 2 is V2. V1 and V2 satisfy the relationship: V1≤V2, ensuring that when the water pipe 3 produces a siphon effect, the water in the water level balance cylinder 2 will not overflow.

[0036] In the specific embodiment of the present invention, the first water pipe opening 31 is a trumpet-shaped opening with an opening downward, so as to achieve the purpose of rapid and effective water sealing and air blocking, and ensure the effective occurrence and termination of the siphon effect. The reason why the first water pipe opening 31 is a trumpet-shaped opening is that: assuming that the diameter of the water pipe 3 is d, after the siphon effect starts, the water level of the water tank 1 continues to drop. At the moment of air intake in the water pipe 3, the gap height between the water level of the water tank 1 and the water level of the first water pipe opening 31 is Δh. At this time, the volume of air entering the air pipe 3 is Q1=πd 2 If the first water pipe opening 31 is designed as a trumpet-shaped opening (bottom diameter D = 3d), the corresponding volume of air entering the ventilation pipe is Q2 = πD 2 Δh=π(3d) 2 Δh=9Q1. That is, the trumpet-shaped opening design greatly improves the air intake effect of the water pipe 3 and can effectively block the siphon effect.

[0037] Preferably, when the system reaches a water supply balance, the air is enclosed in the trumpet-shaped first water pipe 3, so the effect of the length and direction of the water pipe 3 on the water pressure in the system can be ignored. The water pipe 3 is a hose, and the hose connection allows the water level balance cup to be flexibly adjusted and placed within a larger height range, thereby achieving split water supply and dynamically adjustable water level height. The diameter of the water pipe 3 is 10-15mm (for example, 11mm, 12mm, 13mm, 14mm).

[0038] In a specific embodiment of the present invention, the control device further comprises a hanger 9, on which a plurality of hanger holes 91 are arranged from top to bottom, and the water level balance cylinder 2 can be installed in the hanger holes 91 to achieve dynamic height adjustment of the water level balance cylinder 2. In other embodiments, a slide rail can also be used to achieve dynamic height adjustment of the water level balance cylinder 2, the slide rail is vertically arranged, the water level balance cylinder 2 is arranged on the slide rail, and can move up and down along the slide rail, and can stay at any position of the slide rail.

[0039] In the present invention, the water level balance cylinder 2 is connected to the water tank 1 through a hose, and the length of the hose has no effect on the water supply system. Therefore, the water level balance cylinder 2 can be fixed at any height and flexibly adjusted by a slide rail or hanger vertically installed on the wall.

[0040] There are multiple water holes 41, which are spaced apart at the bottom of the water-retaining baffle 4. In a specific embodiment of the present invention, there are three rows of water holes 41, each row of which is provided with multiple water holes 41. The diameter of the water holes 41 is relatively small, so that the water on the replenishment side of the water storage tank 1 flows slowly to the water outlet side. The diameter of the water holes 41 needs to ensure that the total water flow rate per unit time through the water holes 41 is less than the water flow rate per unit time in the water pipe 3, ensuring that the hydraulic connection between the water storage tank 1 and the first water pipe port 31 can be cut off, terminating the siphon effect and suspending the water supply. Preferably, the diameter of the water holes 41 is 1-2 mm (e.g., 1.2 mm, 1.4 mm, 1.6 mm, 1.8 mm).

[0041] In summary, the split variable water level control device provided by the present invention consists of two major parts: a water tank 1 and a water level balance cylinder 2, which are connected by a hose for water supply. The water tank 1 is divided into two areas by a water retention baffle 4, and the water retention baffle 4 preferably has three rows of fine water holes, so that water can flow slowly from the water supply side of the water tank 1 to the water outlet side of the water tank 1. The water tank 1 is fixedly placed at a higher position, and the water level balance cylinder 2 is flexibly placed at any water level below the water tank 1 as needed, and the height is adjustable to achieve the purpose of dynamic change of the water supply level.

[0042] The working principle and process of the split variable water level control device of the present invention when in use are as follows: at the beginning of operation, the float limit valve 5 is in an open state, water flows continuously into the water tank 1, and the water level of the water tank 1 gradually rises. When the water level of the water tank 1 completely submerges the water pipe 3, the water flows into the water level balance cylinder 2 under the action of siphon, and enters the water demand device 8 through the water supply port 21 of the water level balance cylinder 2. When the liquid level in the water level balance cylinder 2 is consistent with the water level height of the water demand device 8, the water level heights of both are at or above the second balanced water level 7, and the water pressure formed by the liquid surface in the water level balance cylinder 2 is higher than the water pressure at the first water pipe port 31 in the water tank 1, H2>H1, the second water pipe port 32 is blocked, the siphon effect is cut off, and the water pipe 3 stops delivering water. At the same time, the liquid level in the water tank 1 also gradually rises until the float limit valve 5 is closed, reaching the first balanced water level 6, the water tank 1 stops replenishing water, and the water supply reaches a stable state.

[0043] When the water demand device 8 consumes water, the liquid level in the water level balance cylinder 2 drops accordingly, and the liquid level in the water level balance cylinder 2 is below the second balanced water level 7, the water pressure decreases, H2

[0044] This device can be actually applied to indoor and field soil crop water consumption test systems. According to different water supply rate requirements, water storage tanks and water level balance cylinders of appropriate sizes can be flexibly designed, but the water supply principle remains unchanged. This device has been successfully applied to the field water and salt migration test monitoring platform at the Yellow River Delta Research Center of the Chinese Academy of Sciences in Dongying. Each test plot (water supply unit) is 3m×2.2m×2m.

[0045] To sum up, in the split-type variable water level control device of the present invention, the water tank and the water level balance cylinder are connected by a water pipe, and the height of the water level balance cylinder can be adjusted arbitrarily, which is convenient for installation and flexible to adjust. The height can be flexibly adjusted according to the water level requirements of different water-demanding devices, thereby achieving the purpose of dynamic change of the water supply level.

[0046] In the present invention, 1. A float limit valve is provided in the water tank, which can be automatically opened and closed during the water replenishment process. 2. The interior of the water tank is divided into two areas by a porous water-retaining partition, which plays a role in buffering the water retention. Water is supplied to the water-demanding device through the water level balance cylinder in the middle. In a stable state, the amount of water in the device is fixed. When the water-required device consumes water, pulse water supply is realized until balance is reached again; that is, after the water level on the outlet side of the water tank drops rapidly, the water on the water inlet side of the water tank is slowly replenished to the outlet side of the water tank, ensuring that the water pipe can take in air and block the siphon effect. 3. The pipe mouth of the water pipe on the outlet side of the water tank is a trumpet-shaped open design, which can achieve the purpose of rapid and effective water sealing and air-locking. 4. The highest point of the trumpet-mouthed water pipe in the water tank is slightly lower than the water replenishment stop water level of the water tank, that is, when the water supply is in a stable state, the trumpet-mouthed water pipe can be completely immersed in water to ensure the generation of a siphon effect. ​

[0047] The installation height of the traditional water tank must be fixed according to the water level required by the water demanding device, which makes its installation and water level adjustment inflexible. The present invention realizes the separate design of the water tank and the water level balance cylinder. The water tank is larger and can be fixed; the water level balance cylinder is smaller and can be flexibly adjusted in height according to the water level requirements.

[0048] The variable water level control device of the present invention can realize continuous circulation of the water supply and replenishment process, can adjust the height of the water level balance cylinder according to the use requirements of the water demand device, is easy to install, flexible to adjust, and is suitable for various water consumption and supply systems.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A split type variable water level control device, characterized in that: The control device comprises: A water storage tank, wherein a water retention baffle is arranged inside the water storage tank, the water retention baffle divides the water storage tank into a water supply side and a water outlet side, a water through hole is arranged at the lower part of the water retention baffle, and water in the water supply side and the water outlet side can flow through the water through the water through hole; a water supply port for water inlet is arranged on the side wall of the water supply side; A water level balance cylinder, which is arranged below the water storage tank, the height of which can be adjusted arbitrarily, and the water supply port of which is connected to the water demand device; A water pipe, one end of which passes through the water outlet side wall of the water tank and enters the interior of the water tank, and a first water pipe opening located inside the water tank faces downward, and a second water pipe opening at the other end of the water pipe is connected to the water inlet of the water level balance cylinder, and the highest point of the water pipe is lower than the highest point of the water level in the water tank; the water flow rate per unit time passing through the water hole is less than the water flow rate per unit time in the water pipe; A float limit valve is provided at the water replenishment port, and the float limit valve can automatically control the water replenishment process so that the maximum height of the water level in the water storage tank reaches the first balanced water level; The water pipe is a hose.

2. The split type variable water level control device according to claim 1, characterized in that: The volume between the first balanced water level on the water outlet side of the water storage tank and the edge of the first water pipe orifice is V1, and the volume of the space above the second balanced water level in the water level balance cylinder is V2. V1 and V2 satisfy the relationship: V1≤V2.

3. The split type variable water level control device according to claim 1, characterized in that: The first water pipe opening is a trumpet-shaped opening opening downward.

4. The split type variable water level control device according to claim 1, characterized in that: The diameter of the water pipe is 10-15 mm.

5. The split type variable water level control device according to claim 1, characterized in that: The device also includes a hanging rack, on which a plurality of hanging holes are arranged from top to bottom, and the water level balance cylinder can be installed in the hanging holes.

6. The split type variable water level control device according to claim 1, characterized in that: The device also includes a slide rail, which is vertically arranged. The water level balance cylinder is arranged on the slide rail and can move up and down along the slide rail and can stay at any position of the slide rail.

7. The split type variable water level control device according to claim 1, characterized in that: There are a plurality of water holes, which are distributed at intervals at the lower part of the water retention baffle.

8. The split type variable water level control device according to claim 7, characterized in that: The water holes are arranged in multiple rows, each row is provided with multiple water holes, and the hole diameter of the water holes is 1-2 mm.

Images