阅读说明：本技术 一种节能机械液压蓄能的设备及方法 (energy-saving mechanical hydraulic energy storage equipment and method ) 是由 魏其山 于 2019-08-14 设计创作，主要内容包括：本发明公开了一种节能机械液压蓄能的设备及方法,包括蓄能部分、油阀系统、配重水箱系统、滑轮部分,蓄能部分是蓄能器,用于储存经油阀系统吞吐出的高压工作液压油,油阀系统是与蓄能部分组成油液循环管路系统,用于传递液压油在本蓄能的设备中流通运行,配重水箱系统中分为配重部分和水球阀管路部分,配重部分包括蓄水箱、牵引钢丝绳和配重装置,配重装置、蓄水箱通过牵引钢丝绳和滑轮部分组成本蓄能设备的运动系统。本发明主要利用自身水资源的势能转化为可方便使用的液压势能,既减少能量转换环节,也减少电机对电能的消耗,控制简单,减少成本投入,维护方便,运行成本低,势能等级不同均可方便切换,可建立气系统、油系统的能源站。(The invention discloses energy-saving mechanical hydraulic energy storage equipment and a method, and the energy-saving mechanical hydraulic energy storage equipment comprises an energy storage part, an oil valve system, a counterweight water tank system and a pulley part, wherein the energy storage part is an energy accumulator and is used for storing high-pressure working hydraulic oil swallowed and spit out by the oil valve system, the oil valve system and the energy storage part form an oil circulating pipeline system and is used for transferring the circulation and operation of the hydraulic oil in the energy storage equipment, the counterweight water tank system is divided into a counterweight part and a water ball valve pipeline part, the counterweight part comprises a water storage tank, a traction steel wire rope and a counterweight device, and the counterweight device and the water storage tank form a movement system of the energy storage equipment through the traction steel. The invention mainly converts the potential energy of the water resource into hydraulic potential energy which can be conveniently used, thereby reducing the energy conversion link, reducing the consumption of the electric energy by the motor, having simple control, low cost input, convenient maintenance, low operation cost and convenient switching of different potential energy grades, and being capable of establishing energy stations of a gas system and an oil system.)

1. The utility model provides an energy-conserving mechanical hydraulic pressure energy storage equipment and method, includes energy storage part, fuel tap system, counter weight water tank system, pulley part, its characterized in that: the energy storage part is an energy accumulator (13) and is used for storing high-pressure working hydraulic oil which is swallowed and spit out through an oil valve system, the oil valve system and the energy storage part form an oil liquid circulation pipeline system and is used for transferring the hydraulic oil to flow through and run in the energy storage equipment, the counterweight water tank system is divided into a counterweight part and a water ball valve pipeline part, the counterweight part comprises a water storage tank (28), a traction steel wire rope (33) and a counterweight device (36), and the counterweight device (36), the water storage tank (28) and a pulley part form a movement system of the energy storage equipment through the traction steel wire rope (33) and the pulley part.

2. An energy-saving mechano-hydraulic energy-storage apparatus and method according to claim 1, characterized in that: the oil valve system comprises an oil tank (1), an oil absorption filter screen a (2), an overflow valve (3), an oil absorption filter screen b (4), a quantitative plunger pump (5), a coupler (6), a bell jar (7), a motor (8), a high-pressure filter (9), a one-way valve (10), a high-pressure ball valve (11), an oil discharge ball valve (12), a high-pressure instrument ball valve (14), a pressure gauge (15), a pressure switch (16), a pressure transmitter (17), an oil supply ball valve a (18), an oil return ball valve (19), an oil supply ball valve b (20), an oil supply one-way valve (21), an oil return one-way valve (22), an oil cylinder foundation (23) and an oil cylinder (24), wherein the high-pressure filter (9), the one-way valve (10), the high-pressure ball valve (11), the oil discharge ball valve (12), the high-pressure instrument ball valve (, The oil supply ball valve a (18) is sequentially arranged and installed on an oil circulation pipeline, the oil circulation pipeline is in a cross shape, four inlet and outlet ends are arranged on the cross pipeline, the energy accumulator (13) is arranged at one end, close to the oil drain ball valve (12), of the oil circulation pipeline, an oil inlet is formed in one side of the oil supply ball valve a (18), one end, close to the high-pressure filter (9), of the oil circulation pipeline is provided with an overflow valve (3), an oil absorption filter screen b (4), a quantitative plunger pump (5), a coupler (6), a bell jar (7) and a motor (8), the motor (8) is connected with the quantitative plunger pump (5) and used for controlling the speed and the volume of oil entering a circulation pipeline system, one end, close to the oil supply check valve (21), of the oil circulation pipeline is connected with an oil outlet of an oil cylinder (24.

3. An energy-saving mechano-hydraulic energy storage apparatus and method according to claim 2, characterized in that: one side of the quantitative plunger pump (5) is provided with a coupler (6) and a bell jar (7), the coupler (6) is connected with the overflow valve (3), and the oil absorption filter screens (a (2) and b (4)) are used for filtering impurities in the hydraulic oil.

4. An energy-saving mechano-hydraulic energy storage apparatus and method according to claim 2, characterized in that: oil absorption filter screen a (2) and return ball valve (19), return check valve (22), hydro-cylinder basis (23) between be equipped with the tube coupling, and the pipeline is located between oil tank (1), hydro-cylinder (24), hydraulic oil flow direction is by directional hydro-cylinder (24) of oil tank (1) in the pipeline.

5. An energy-saving mechano-hydraulic energy-storage apparatus and method according to claim 1, characterized in that: the balance weight water tank system is divided into a balance weight part and a water ball valve pipeline part, the balance weight part comprises a water storage tank (28), a traction steel wire rope (33) and a balance weight device (36), the water ball valve pipeline part comprises a manual water discharging ball valve (25), an electric water discharging valve (26), a water discharging groove (27), a liquid level sensor (29), a water storage tank movement guide rail (30), a manual water supply ball valve (31) and an electric water supply ball valve (32), the water ball valve pipeline part is sequentially arranged and installed on the water ball valve pipeline, a water inlet is formed in one side of the manual water supply ball valve (31), and the water discharging groove (27) is formed in one end, close to the electric water discharging valve (26), of the water ball valve pipeline part.

6. An energy-saving mechano-hydraulic energy-storage device and method according to claim 5, characterized in that: the water ball valve pipeline part is connected with a water storage tank (28) to form one end of the counterweight part, wherein the weight of the counterweight part can be changed.

7. An energy-saving mechano-hydraulic energy-storage device and method according to claim 5, characterized in that: the manual water supply ball valve (31) and the electric water supply ball valve (32) are connected in parallel, and are a selective extension of automatic (normal operation) and manual (black start) control modes.

8. An energy-saving mechano-hydraulic energy-storage apparatus and method according to claim 1, characterized in that: the pulley part comprises a directional pulley block a (34) and a directional pulley block b (35), and the traction steel wire rope (33) penetrates through the directional pulley block a (34) and the directional pulley block b (35).

Technical Field

The invention relates to a hydraulic control device and a hydraulic control energy storage method, in particular to energy-saving mechanical hydraulic energy storage equipment and a method.

Background

At present, hydraulic equipment is commonly used for hydropower stations and hydraulic facilities, conventional hydraulic system energy storage is realized by using a motor and an oil pump, the oil pump consumes electric energy during operation, and the operation and maintenance cost is high. At present, hydraulic energy is reserved in a black start scheme of a security system, and the traditional equipment has limited stored energy; if the spare energy of the energy storage device is insufficient or accidentally lost, an emergency operation system is required, and the traditional device solves the problem that the limitation of a starting system is more prominent.

Disclosure of Invention

The invention aims to solve the technical problem of providing an energy-saving mechanical hydraulic energy storage device and method.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides an energy-conserving mechanical hydraulic pressure energy storage equipment and method, includes energy storage part, fuel tap system, counter weight water tank system, pulley part, its characterized in that: the energy storage part is an energy accumulator and is used for storing high-pressure working hydraulic oil which is swallowed and spit out through an oil valve system, the oil valve system and the energy storage part form an oil liquid circulation pipeline system and is used for transferring the hydraulic oil to flow through and run in the energy storage equipment, the counterweight water tank system is divided into a counterweight part and a water ball valve pipeline part, the counterweight part comprises a water storage tank, a traction steel wire rope and a counterweight device, and the counterweight device and the water storage tank form a movement system of the energy storage equipment through the traction steel wire rope and a pulley part.

Compared with the prior art, the invention has the advantages that: the invention mainly converts the potential energy of the water resource into hydraulic potential energy which can be conveniently used, thereby reducing the energy conversion link and reducing the consumption of the electric energy by the motor. The control is simple, the cost input is reduced, the maintenance is convenient, the operation cost is low, the potential energy grades can be conveniently switched, and an energy station of a gas system and an oil system can be established. Accords with the national policy of energy conservation and emission reduction. The most outstanding advantage is that: one of the most critical energy points for providing black start for creating intelligent power stations and intelligent water conservancy facilities is the hydraulic energy stored in a hydraulic system. The hydraulic energy water and electricity set speed regulating system can be started, and the hydraulic gate of the water conservancy facility can be opened and closed. At present, hydraulic energy storage of hydropower stations and hydraulic equipment is basically static energy storage (hydraulic tanks), and the stored energy is limited. When the energy storage is insufficient or the energy is lost accidentally, the traditional method is to store energy by using a manual pump. Has the disadvantages of slow pressure build-up, large physical consumption and the like. In this case, if a quick response emergency guarantee is required, an important problem to be solved urgently is. The method fills a gap for solving the problem.

As an improvement, the oil valve system comprises an oil tank, an oil absorption filter screen a, an oil cylinder overflow valve, an oil absorption filter screen b, a quantitative plunger pump, a coupler, a bell jar, a motor, a high-pressure filter, a one-way valve, a high-pressure ball valve, an oil discharge ball valve, a high-pressure instrument ball valve, a pressure gauge, a pressure switch, a pressure transmitter, an oil supply ball valve a, an oil return ball valve, an oil supply ball valve b, an oil supply one-way valve, an oil return one-way valve, an oil cylinder base and an oil cylinder, wherein the high-pressure filter, the one-way valve, the high-pressure ball valve, the oil discharge ball valve, the high-pressure instrument ball valve, the pressure gauge, the pressure switch, the pressure transmitter and the oil supply ball valve a are sequentially arranged and installed on an oil circulation pipeline, the oil circulation pipeline is in a cross shape, the, the oil circulation pipeline is close to one end of the high-pressure filter, is provided with an overflow valve, an oil absorption filter screen b, a quantitative plunger pump, a coupler, a bell jar and a motor, and is arranged in an oil tank, wherein the motor is connected with the quantitative plunger pump and is used for controlling the speed and the volume of oil entering the circulation pipeline system, and the oil circulation pipeline is close to one end of the oil supply one-way valve and is connected with an oil inlet of the oil cylinder.

As an improvement, one side of the quantitative plunger pump is provided with a coupler and a bell jar, and the coupler is connected with an overflow valve.

As the improvement, be equipped with the tube coupling between oil absorption filter screen a and return ball valve, return check valve, the hydro-cylinder basis, and the pipeline is located between oil tank, the hydro-cylinder, the hydraulic oil flow direction is by the directional hydro-cylinder of oil tank in the pipeline.

As an improvement, the counterweight water tank system is divided into a counterweight part and a water ball valve pipeline part, the counterweight part comprises a water storage tank, a traction steel wire rope and a counterweight device, the water ball valve pipeline part comprises a manual water drain ball valve, an electric water drain valve, a water drainage tank, a liquid level sensor, a water storage tank motion guide rail, a manual water supply ball valve and an electric water supply ball valve, the water ball valve pipeline part is sequentially arranged and installed on the water ball valve pipeline, a water inlet is formed in one side of the manual water supply ball valve, and a water drainage tank is formed in one end, close to the electric water drain valve, of the water ball valve pipeline part.

As an improvement, the water ball valve pipeline part is connected with the water storage tank to form one end of the counterweight part, wherein the weight of the counterweight part can be changed.

As an improvement, the manual water supply ball valve and the electric water supply ball valve are connected in parallel and are a selective extension of an automatic (in normal operation) and manual (in black start) control mode.

As an improvement, the pulley part comprises a directional pulley block a and a directional pulley block b, and the traction steel wire rope passes through the directional pulley block a and the directional pulley block b.

Drawings

FIG. 1 is a schematic diagram of an apparatus and method for energy efficient mechanical hydraulic energy storage.

As shown in the figure: 1. an oil tank, 2, oil absorption filter screens a and 3, an overflow valve, 4, oil absorption filter screens b and 5, a quantitative plunger pump, 6, a coupler, 7, a bell jar, 8, a motor, 9, a high-pressure filter, 10, a one-way valve, 11, a high-pressure ball valve, 12, an oil discharge ball valve, 13, an energy accumulator, 14, a high-pressure instrument ball valve, 15, a pressure gauge, 16, a pressure switch, 17, a pressure transmitter, 18, oil supply ball valves a and 19, an oil return ball valve, 20, oil supply ball valves b and 21, an oil supply one-way valve, 22, an oil return one-way valve, 23, an oil cylinder base, 24, an oil cylinder, 25, a manual water discharge ball valve, 26, an electric water discharge valve, 27, a water drainage tank, 28, a water storage tank, 29, a liquid level sensor, 30, a water storage tank moving guide rail, 31, a manual water supply ball valve, 32, an electric water supply ball, 36. counterweight device, 37, safety net.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

When the invention is implemented, the equipment and the method for energy-saving mechanical hydraulic energy storage comprise an energy storage part, an oil valve system, a counterweight water tank system and a pulley part, and are characterized in that: the energy storage part is an energy accumulator 13 and is used for storing high-pressure working hydraulic oil which is swallowed and spit out through an oil valve system, the oil valve system and the energy storage part form an oil liquid circulation pipeline system and is used for transferring the hydraulic oil to flow through and run in the energy storage equipment, the counterweight water tank system is divided into a counterweight part and a water ball valve pipeline part, the counterweight part comprises a water storage tank 28, a traction steel wire rope 33 and a counterweight device 36, and the counterweight device 36 and the water storage tank 28 form a movement system of the energy storage equipment through the traction steel wire rope 33 and a pulley part

The oil valve system comprises an oil tank 1, an oil absorption filter screen a2, an overflow valve 3, an oil absorption filter screen b4, a quantitative plunger pump 5, a coupler 6, a bell jar 7, a motor 8, a high-pressure filter 9, a one-way valve 10, a high-pressure ball valve 11, an oil discharge ball valve 12, a high-pressure instrument ball valve 14, a pressure gauge 15, a pressure switch 16, a pressure transmitter 17, an oil supply ball valve a18, an oil return ball valve 19, an oil supply ball valve b20, an oil supply one-way valve 21, an oil return one-way valve 22, an oil cylinder base 23 and an oil cylinder 24, wherein the high-pressure filter 9, the one-way valve 10, the high-pressure ball valve 11, the oil discharge ball valve 12, the high-pressure instrument ball valve 14, the pressure gauge 15, the pressure switch 16, the pressure transmitter 17 and the oil supply ball valve a18 are sequentially arranged on an oil circulation pipeline, the oil circulation pipeline is in a cross shape and, one side of the oil supply ball valve a18 is provided with an oil inlet, one end of the oil circulation pipeline close to the high pressure filter 9 is provided with an overflow valve 3, an oil absorption filter screen b4, a quantitative plunger pump 5, a coupler 6, a bell jar 7 and a motor 8, wherein the motor 8 is connected with the quantitative plunger pump 5 and used for controlling the speed and the volume of oil entering the circulation pipeline system, and one end of the oil circulation pipeline close to the oil supply one-way valve 21 is connected with the oil inlet of the oil cylinder 24.

And a coupler 6 and a bell jar 7 are arranged on one side of the quantitative plunger pump 5, and the coupler 6 is connected with the overflow valve 3.

The oil suction filter screen a2 is connected with the oil return ball valve 19, the oil return check valve 22 and the oil cylinder foundation 23 through pipelines, the pipelines are arranged between the oil tank 1 and the oil cylinder 24, and the flow direction of hydraulic oil in the pipelines is directed to the oil cylinder 24 from the oil tank 1.

The counterweight water tank system is divided into a counterweight part and a water ball valve pipeline part, the counterweight part comprises a water storage tank 28, a traction steel wire rope 33 and a counterweight device 36, the water ball valve pipeline part comprises a manual water drain ball valve 25, an electric water drain valve 26, a water drainage tank 27, a liquid level sensor 29 (a turnover plate type), a water storage tank motion guide rail 30, a manual water supply ball valve 31 and an electric water supply ball valve 32, the water ball valve pipeline part is sequentially arranged and installed on the water ball valve pipeline, a water inlet is formed in one side of the manual water supply ball valve 31, and the water drainage tank 27 is formed in one end, close to the electric water drain valve 26, of the water ball valve pipeline part.

the water ball valve pipe section is connected with the water storage tank 28 and forms one end of the counterweight section, wherein the weight of the counterweight section can be changed.

The manual water supply ball valve 31 and the electric water supply ball valve 32 are connected in parallel, and the electric water supply ball valves are connected in parallel, so that the manual water supply ball valves and the electric water supply ball valves are selectively expanded in an automatic (normal operation) control mode and a manual (black start) control mode.

The pulley part comprises a directional pulley block a34 and a directional pulley block b35, and the traction steel wire rope 33 passes through the directional pulley block a34 and the directional pulley block b35

The working principle of the invention is as follows: 1. according to the principle of gravity formula P ═ F/S; f is G;

The formula: density (ρ) mass (m)/volume (v)

Obtaining m ═ rho water v; the water storage height of the water storage tank is G ═ rho water gv G ═ rho gS water storage tank bottom area ═ h water storage tank

And P is F/S oil cylinder interface area, rho water gS bottom area of the water storage tank, h water storage height of the water storage tank and S oil cylinder interface area.

And calculating the pressure grade and the pressure building time required by the accumulator according to the formula principle. The water level is calibrated by means of a level sensor 29 (of the reversible type).

2. Pressure building first step: the water storage tank 28 is lifted under the guidance of the water storage tank moving guide rail 30 by the counterweight device 36 through a pulley mechanism, and the water storage tank 28 drives the oil cylinder 24 to suck the hydraulic oil in the oil tank 1 into the rodless cavity A of the oil cylinder 24 through the oil return ball valve 19 and the oil return one-way valve 22;

3. And a second step of pressure building: the water source with potential energy flows into the water storage tank 28 through the manual water supply ball valve 31 or the electric water supply ball valve 32 in a self-flowing mode; according to the calculation, when the water level height reaches the water stop level, the manual water supply ball valve 31 or the electric water supply ball valve 32 is closed, at this time, when the pressure of the energy accumulator 13 is smaller than the pressure in the rodless cavity a of the oil cylinder 24, the hydraulic oil in the rodless cavity a of the oil cylinder 24 passes through the oil supply one-way valve 21, the oil supply ball valve b20 and the high-pressure ball valve 11 under the action of gravity and enters the energy accumulator 13, and thus the pressure building unilateral flow is completed.

4. The first pressure building flow returns to the original point: after the oil in the rodless cavity A of the oil cylinder 24 is pressed into the energy accumulator 13, the pressure building unilateral process is finished. The manual drain ball valve 25 or the electric drain valve 26 is opened, and the water in the water reservoir 28 is discharged into the drain tank 27 while flowing by gravity. The water storage tank 28 gradually reaches the lifting fixed point under the gravity of the counterweight device 36, and the hydraulic oil in the oil tank 1 is sucked into the rodless cavity A of the oil cylinder 24 again through the oil return ball valve 19 and the oil return one-way valve 22. And finishing the first oil filling and the second voltage building origin of the first energy accumulator 13.

5. In the state of item 4, the above steps of items 1, 2 and 3 are repeated to perform the reciprocating operation. To complete the pressurization of the accumulator 13 and maintain the pressure in the accumulator 13 within a specified range.

6. If the PLC automatic measurement and control box is used for controlling the components 15-17 and 29, the electric water drain valve 26 and the electric water supply ball valve 32 together, the energy accumulator 13 can be automatically maintained within a pressure range. Therefore, the full-automatic (non-manual) control system for converting potential energy into hydraulic kinetic energy is an energy-saving mode in the normal running state of the system.

The invention has wide application field, can be applied to the high-energy-consumption industrial and mining industry with the advantage of water source, and can also be applied to hydraulic energy-making facilities in remote areas. The most prominent is a hydraulic control unit of gates of hydropower stations and reservoir dam regions because of the advantages of water sources. China is a country with wide water resource utilization, water conservancy and hydropower technology is mature and advanced, hydropower is also a clean energy source, and the country advocates industries. The invention can be applied to the construction of new factories and mines and can also be used for upgrading and transforming old factories and mines.

At present, policies such as energy conservation and emission reduction are advocated in China, and technical upgrading and optimization are required to be carried out on the supply side. The high-quality industrial system with safe production and guaranteed emergency is achieved.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, reference to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. Such as: the difference between buoyancy and gravity is utilized to drive the oil cylinder to reciprocate up and down.