Water pressure regulator for hydraulic ram

Abstract

The utility model relates to the technical field of water pressure regulation, and discloses a water pressure regulator for a hydraulic ram, which comprises a reducer pipe, the water outlet end of the reducer pipe is connected with the water inlet end of the hydraulic ram, the water inlet end of the reducer pipe is provided with a water tank, a one-way valve, an inflator, a water pressure gauge and a pressure regulating valve, and the water tank is provided with a crankshaft. The crankshaft is used for pulling a piston rod of the inflator, a waterwheel is installed at the power input end of the crankshaft and rotationally installed on the inner wall of the water tank, a water inlet is formed in the top of the water tank, the waterwheel is located below the water inlet, and a drainage hole is formed in the side wall of the water tank. The water wheel has the advantages that water at the water inlet flows through the water wheel, the water wheel can rotate automatically after reaching a certain weight, water falling from the water wheel is accumulated at the bottom of the water tank and enters the reducer pipe through the one-way valve, and when the water surface in the water tank is close to the bottom of the rotary disc, the water is drained through the drainage hole. And normal work of the waterwheel is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of water pressure regulation, in particular to a water pressure regulator for a water hammer pump. Background Art

[0002] In my country, if electric irrigation is used to irrigate the huge amount of irrigation water, especially in mountainous and hilly areas with high water potential, it will not only consume a lot of electricity, but also require money to purchase a large amount of power equipment. In addition, these power equipment also need to be regularly maintained and overhauled, which increases costs and shortens the actual irrigation time. Since mountain towns mostly use the method of zoned water supply and use multi-stage water lifting or pressure pipeline water delivery, the number of water pumps and pumping stations has increased, making the pump energy consumption involved in the water delivery process obvious, affecting the overall efficiency of the system.

[0003] A water hammer pump is an advanced water-lifting device that uses flowing water as power and produces a water hammer effect through mechanical action, converting low head energy into high head energy. It uses the energy generated when the flowing water is suddenly braked to raise the water pressure of a part of it to a certain height, that is, to generate an instantaneous water hammer pressure that is more than ten times higher than the normal pressure to achieve water lifting. It is a simple machine that can convert kinetic energy into pressure energy. The water hammer pump has no moving working components, a simple structure, and does not require an external power source or special personnel to supervise it.

[0004] The Chinese utility model patent (authorization announcement number: CN203743092U name: a water hammer pump) includes: a power pipe, the power pipe is connected to the pump body, the pump body is connected to the elbow and the bottom of the vertical water inlet pipe, the water inlet pipe is connected to the water delivery valve, the water delivery valve is connected to the air tank, the air tank is connected to the water outlet pipe, the cross-sectional area of ​​the power pipe is equal to the cross-sectional area of ​​the pump body and the elbow, the elbow is connected to the small end of the reducer with one end larger than the other, and the large end of the reducer is connected to the drain valve. The utility model adopts the method of setting the reducer at the position of the drain valve, and concentrating it with the elbow and the drain valve, which can reduce the head loss. Compared with the traditional water hammer pump, the efficiency of the water hammer pump is improved, the head is increased, and the volume of the water hammer pump is reduced. The reduction in the volume of the water hammer pump saves materials for manufacturing the water hammer pump on the one hand, and saves the engineering workload for installing the water hammer pump on the other hand. This is very important for the construction of large-scale water hammer pump stations such as pumped storage or water diversion projects, which can greatly reduce earthwork and installation costs. However, in mountainous water supply systems, they may face large elevation differences and unstable water flows, which may affect normal working results and make it difficult to promote and apply. Utility Model Content

[0005] The utility model aims to provide a water pressure regulator for a water hammer pump to overcome the shortcomings of the prior art.

[0006] The purpose of the utility model is achieved through the following technical solutions: a water pressure regulator for a water hammer pump, comprising a reducer, the water outlet end of the reducer is connected to the water inlet end of the water hammer pump, a water tank is installed at the water inlet end of the reducer, a one-way valve is installed in the reducer near the water tank, the one-way valve is opened toward the water hammer pump, an air pump, a water pressure gauge and a pressure regulating valve are also arranged at the water inlet end of the reducer, the one-way valve, the air pump, the water pressure gauge and the pressure regulating valve are arranged in sequence along the water flow direction of the reducer, a crankshaft is rotatably installed on the water tank, the crankshaft is used to pull the piston rod of the air pump, a water wheel is installed at the power input end of the crankshaft, the water wheel is rotatably installed on the inner wall of the water tank, a water inlet is opened at the top of the water tank, the water wheel is located below the water inlet, a drainage hole is opened on the side wall of the water tank, and the drainage hole is located between the bottom of the water wheel and the top of the water inlet end of the reducer.

[0007] Preferably, a filter is also installed at the water inlet end of the reducer, and the filter is located between the pressure regulating valve and the water hammer pump.

[0008] Preferably, the crankshaft is mounted close to the rotating shaft of the water wheel.

[0009] Preferably, the filter element includes a shell, a filter element and a metal mesh, the top of the shell is openable, the water inlet side wall of the shell is close to its top, the water outlet of the shell is located at the bottom center, the filter element is filled in the metal mesh cover, the metal mesh cover is tightly pressed between the top and bottom of the shell, and the water outlet is located in the metal mesh cover.

[0010] Preferably, the metal mesh cover is tubular, and flanges are provided at both ends of the metal mesh cover, and the flanges are formed by flanging. Annular grooves are provided at the inner top and inner bottom of the shell, and the two annular grooves are coaxial. The water outlet is located in the annular groove, and an O-ring is installed in the annular groove, and the O-ring is pressed into the annular groove through the flange.

[0011] Preferably, the filter element is composed of filter cotton and activated carbon, and the activated carbon is coated in the filter cotton.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The pressure regulating valve and water pressure gauge are set to adjust the unstable water pressure and ensure that the water pressure meets the requirements. When the water pressure reaches a certain value, it can pass to the water hammer pump. When the water flows through the reducer, it is pressurized for the second time under the cooperation of the water's own gravity, so that the flow rate increases when the water hammer pump body sprays out. It has strong practical performance and can ensure water delivery to high water levels. At the same time, the device is not easy to be damaged, which can meet the needs of mountain irrigation in mountainous areas and urban water use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 is a schematic diagram of the structure of the filter element;

[0016] In the figure, 1- reducer, 2- water hammer pump, 3- water tank, 4- air pump, 5- water pressure gauge, 6- pressure regulating valve, 7- crankshaft, 8- water wheel, 9- shell, 10- metal mesh cover, 11- flange, 12- O-ring, 13- filter cotton, 14- activated carbon. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme 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 described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying 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 of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0020] 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.

[0021] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply 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 utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1 and 2As shown, a water pressure regulator for a water hammer pump comprises a reducer 1, the water outlet end of the reducer 1 is connected to the water inlet end of the water hammer pump 2, a water tank 3 is installed at the water inlet end of the reducer 1, a one-way valve is installed near the water tank 3 in the reducer 1, the one-way valve opens toward the water hammer pump 2, an air pump 4, a water pressure gauge 5 and a pressure regulating valve 6 are also arranged at the water inlet end of the reducer 1, and the one-way valve, the air pump 4, the water pressure gauge 5 and the pressure regulating valve 6 are arranged along the water flow direction of the reducer 1 The water tank 3 is provided with a crankshaft 7 which is rotatably mounted on the water tank 3. The crankshaft 7 is used to pull the piston rod of the air pump 4. The upper part of the air pump 4 is connected to the crankshaft 7 through a steel ring so that the rod of the air pump 4 is always along the plumb direction, thereby reducing the friction generated on the wall of the air pump 4. A water wheel 8 is mounted on the power input end of the crankshaft 7. The water wheel 8 is rotatably mounted on the inner wall of the water tank 3. A water inlet is provided on the top of the water tank 3. The water wheel 8 is located below the water inlet. A drainage hole is provided, and the drainage hole is located between the bottom of the water wheel 8 and the top of the water inlet end of the reducer 1. The water tank 3 is fixed at a low-altitude water source, and then water is introduced into the water inlet by a water pipe. After the water flows through the water wheel 8 and reaches a certain weight, the water wheel 8 will rotate by itself, and the water falling from the water wheel 8 is accumulated at the bottom of the water tank 3 and enters the reducer 1 through a one-way valve. When the water level in the water tank 3 is close to the bottom of the turntable, it is discharged through the drainage hole to avoid affecting the normal operation of the water wheel 8. The pressure regulating valve 6 and the water pressure gauge 5 are set to adjust the unstable water pressure and ensure that the water pressure meets the requirements. When the water pressure reaches a certain value, it can be passed to the water hammer pump 2. When the water flows through the reducer 1, it is pressurized twice under the cooperation of the water's own gravity, so that the flow rate of the water hammer pump 2 is increased when the main body is ejected. The practical performance is strong, and it can ensure the delivery of water to high water levels. At the same time, the device is not easy to be damaged, which meets the needs of mountain irrigation and urban water use in mountainous areas.

[0024] In this embodiment, if Figure 1 and 2 As shown, a filter is also installed at the water inlet end of the reducer 1, and the filter is located between the pressure regulating valve 6 and the water hammer pump 2. The filter improves the water quality and prevents the water pipe from being blocked.

[0025] In this embodiment, if Figure 1 and 2 As shown, the crankshaft 7 is installed near the rotating shaft of the water wheel 8 and is eccentrically arranged so that the torque that always exists increases the rotation speed of the water wheel 8.

[0026] In this embodiment, if Figure 1 and 2As shown, the filter element includes a shell 9, a filter element and a metal mesh. The top of the shell 9 can be opened, the side wall of the water inlet end of the shell 9 is close to its top, and the water outlet end of the shell 9 is located at the center of its bottom. The filter element is filled in a metal mesh cover 10, and the metal mesh cover 10 is tightly pressed between the top and the bottom of the shell 9. The water outlet end is located in the metal mesh cover 10. The metal mesh performs coarse filtering on the sand and gravel, and then performs fine filtering through the filter element.

[0027] In this embodiment, if Figure 1 and 2 As shown, the metal mesh cover 10 is tubular, and flanges 11 are provided at both ends of the metal mesh cover 10. The flanges 11 are formed by flanging. Annular grooves are provided at the inner top and the inner bottom of the shell 9. The two annular grooves are coaxial, and the water outlet is located in the annular groove. An O-ring 12 is installed in the annular groove. The O-ring 12 is pressed into the annular groove through the flange 11. The structure is simple and easy to replace.

[0028] In this embodiment, if Figure 1 and 2 As shown, the filter element is composed of filter cotton 13 and activated carbon 14. The activated carbon 14 is coated in the filter cotton 13. The water after coarse filtration is filtered by the filter cotton 13 to make the water quality clear. Finally, the activated carbon 14 absorbs odor, residual chlorine and other chemicals in the water, thereby improving the water quality.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water pressure regulator for a water hammer pump, comprising a reducer (1), wherein the water outlet end of the reducer (1) is connected to the water inlet end of the water hammer pump (2), characterized in that: A water tank (3) is installed at the water inlet end of the reducer (1); a one-way valve is installed in the reducer (1) near the water tank (3); the one-way valve opens toward the water hammer pump (2); an air pump (4), a water pressure gauge (5) and a pressure regulating valve (6) are arranged at the water inlet end of the reducer (1); the one-way valve, the air pump (4), the water pressure gauge (5) and the pressure regulating valve (6) are arranged in sequence along the water flow direction of the reducer (1); a rotating valve on the water tank (3) is installed A crankshaft (7) is provided, the crankshaft (7) being used to pull the piston rod of the air pump (4); a water wheel (8) is provided at the power input end of the crankshaft (7); the water wheel (8) is rotatably mounted on the inner wall of the water tank (3); a water inlet is provided at the top of the water tank (3); the water wheel (8) is located below the water inlet; a drainage hole is provided on the side wall of the water tank (3); the drainage hole is located between the bottom of the water wheel (8) and the top of the water inlet end of the reducer (1).

2. A water pressure regulator for a water hammer pump according to claim 1, characterized in that: A filter is also installed at the water inlet end of the reducer (1), and the filter is located between the pressure regulating valve (6) and the water hammer pump (2).

3. The water pressure regulator for a water hammer pump according to claim 1, characterized in that: The crankshaft (7) is mounted close to the rotating shaft of the water wheel (8).

4. A water pressure regulator for a water hammer pump according to claim 2, characterized in that: The filter element comprises a shell (9), a filter element and a metal mesh cover (10); the top of the shell (9) is openable, the water inlet side wall of the shell (9) is close to the top, the water outlet of the shell (9) is located at the center of the bottom, the filter element is filled in the metal mesh cover (10), the metal mesh cover (10) is tightly pressed between the top and the bottom of the shell (9), and the water outlet is located in the metal mesh cover (10).

5. A water pressure regulator for a water hammer pump according to claim 4, characterized in that: The metal mesh cover (10) is tubular, and flanges (11) are provided at both ends of the metal mesh cover (10), and the flanges (11) are formed by flanging. The inner top and inner bottom of the shell (9) are both provided with annular grooves, and the two annular grooves are coaxial, and the water outlet is located in the annular groove. An O-type sealing ring (12) is installed in the annular groove, and the O-type sealing ring (12) is pressed into the annular groove through the flange (11).

6. A water pressure regulator for a water hammer pump according to claim 4 or 5, characterized in that: The filter element is composed of filter cotton (13) and activated carbon (14), and the activated carbon (14) is coated inside the filter cotton (13).

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