Liquid extraction device

Abstract

The utility model provides liquid extraction equipment, and relates to the technical field of liquid extraction equipment. The liquid extraction equipment comprises a first pressure tank, a second pressure tank and an air compression device, an air inlet pipe, an air outlet pipe and an air supplementing pipe are arranged on the air compression device, the first pressure tank and the second pressure tank are both communicated with the air outlet pipe through air inlet pipelines, and a first air inlet valve and a second air inlet valve are arranged on the two air inlet pipelines respectively. The first pressure tank and the second pressure tank are both communicated with the air inlet pipe through air outlet pipelines, a first air outlet valve and a second air outlet valve are arranged on the two air outlet pipelines respectively, the first pressure tank and the second pressure tank are both communicated with liquid inlet pipelines, and a first liquid inlet one-way valve and a second liquid inlet one-way valve are arranged on the two liquid inlet pipelines respectively. The first pressure tank and the second pressure tank are both communicated with liquid outlet pipelines, and the two liquid outlet pipelines are provided with a first liquid outlet valve and a second liquid outlet valve respectively. The liquid extraction equipment can reduce the energy consumption, and has the advantages of energy conservation and environmental protection.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid extraction equipment, in particular to a liquid extraction equipment. Background Art

[0002] Liquid extraction equipment is a machine that transports liquid or pressurizes liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the liquid energy. It is mainly used to transport liquids including water, oil, acid and alkali liquids, emulsions, suspensions and liquid metals. It can also transport liquids, gas mixtures and liquids containing suspended solids.

[0003] Traditional liquid extraction equipment uses diesel engines, which consume a lot of oil resources, are expensive, have high operating costs, and the exhaust gas they emit will not only pollute the environment, but also enhance the greenhouse effect of the atmosphere. Therefore, it is necessary to design a liquid extraction equipment that can reduce energy consumption, save energy and be environmentally friendly. Utility Model Content

[0004] In view of the above problems in the prior art, the present application proposes a liquid extraction device that can reduce energy consumption and has the advantages of energy saving and environmental protection.

[0005] One aspect of the utility model provides a liquid extraction device, the liquid extraction device includes a first pressure tank, a second pressure tank and an air compression device, the air compression device is provided with an air inlet pipe, an air outlet pipe and an air supply pipe, the first pressure tank and the second pressure tank are both connected to the air outlet pipe through an air inlet pipe, the two air inlet pipes are respectively provided with a first air inlet valve and a second air inlet valve, the first pressure tank and the second pressure tank are both connected to the air inlet pipe through an air outlet pipe, the two air outlet pipes are respectively provided with a first air outlet valve and a second air outlet valve, the first pressure tank and the second pressure tank are both connected to a liquid inlet pipe, the two liquid inlet pipes are respectively provided with a first liquid inlet check valve and a second liquid inlet check valve, the first pressure tank and the second pressure tank are both connected to a liquid outlet pipe, the two liquid outlet pipes are respectively provided with a first liquid outlet valve and a second liquid outlet valve, the first pressure tank and the second pressure tank are both connected to an exhaust pipe, the two exhaust pipes are respectively provided with a first exhaust valve and a second exhaust valve, and the first pressure tank and the second pressure tank are respectively provided with a first pressure detector and a second pressure detector.

[0006] As a further improvement of the above technical solution:

[0007] The above-mentioned liquid extraction equipment, further, the first pressure tank is provided with a first proximity switch at the upper end of its liquid outlet, and the first proximity switch is used to detect the liquid level of the liquid in the first pressure tank; the second pressure tank is provided with a second proximity switch at the upper end of its liquid outlet, and the second proximity switch is used to detect the liquid level of the liquid in the second pressure tank.

[0008] The above-mentioned liquid extraction equipment, further, wherein a first float switch is placed in the first pressure tank, and the first float switch can float on the upper surface of the liquid in the first pressure tank and can block the air inlet and outlet of the first pressure tank; a second float switch is placed in the second pressure tank, and the second float switch can float on the upper surface of the liquid in the second pressure tank and can block the air inlet and outlet of the second pressure tank.

[0009] The above-mentioned liquid extraction device further comprises a filter provided on the liquid inlet pipe, and the filter is used to filter the liquid entering the liquid inlet pipe.

[0010] The above-mentioned liquid extraction equipment further comprises an air supply one-way valve provided on the air supply pipe, and the air supply one-way valve is used to supply gas to the air compression device.

[0011] In the above-mentioned liquid extraction equipment, further, the air inlet valve, the air outlet valve, the liquid outlet valve and the exhaust valve are all solenoid valves.

[0012] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the utility model can be achieved.

[0013] The utility model provides a liquid extraction device, which has at least the following beneficial effects compared with the prior art: when the liquid extraction device is running to extract liquid, firstly, high-pressure gas will enter the pressure tank storing low-pressure liquid from a pressure tank, so that the high-pressure gas assists the air compression device to convert the low-pressure liquid in the pressure tank into high-pressure liquid, and the high-pressure liquid is discharged from the liquid outlet pipe through the liquid outlet valve to realize the extraction of liquid. Under the same power condition, the high-pressure gas in the liquid extraction device can reduce the operating energy consumption of the air compression device, thereby achieving the effect of reducing energy consumption, and has the advantages of energy saving and environmental protection.

[0014] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0017] Figure 1 A schematic structural diagram of a liquid extraction device provided in an embodiment of the utility model is shown.

[0018] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0019] Description of reference numerals:

[0020] 100-liquid extraction equipment, 110-first pressure tank, 111-first proximity switch, 112-first float switch, 113-exhaust pipe, 114-first exhaust valve, 115-first pressure detector, 120-second pressure tank, 121-second proximity switch, 122-second float switch, 123-second exhaust valve, 124-second pressure detector, 130-air compression device, 131-inlet pipe, 132-outlet pipe, 133-air supply pipe, 1 34-air supply one-way valve, 140-air inlet pipe, 141-first air inlet valve, 142-second air inlet valve, 150-air outlet pipe, 151-first air outlet valve, 152-second air outlet valve, 160-liquid inlet pipe, 161-first liquid inlet one-way valve, 162-second liquid inlet one-way valve, 163-filter, 170-liquid outlet pipe, 171-first liquid outlet valve, 172-second liquid outlet valve, 173-liquid discharge pipe, 174-liquid discharge one-way valve, 180-isolation wall. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "liquid level", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher liquid level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower liquid level than the second feature.

[0026] The utility model will be further described below in conjunction with the accompanying drawings.

[0027] The embodiment of the utility model provides a liquid extraction device 100, which can reduce the amount of energy used and has the advantages of energy saving and environmental protection. The liquid extraction device 100 provided by the embodiment of the utility model can be used in the South-to-North Water Diversion Project, water plants, pumped storage power stations, and oil extraction. The utility model can also be installed in the hull of a ship and can be used as a power output for the ship.

[0028] See also Figure 1 The liquid extraction device 100 provided by the embodiment of the utility model comprises a first pressure tank 110, a second pressure tank 120 and an air compression device 130. The air compression device 130 is provided with an air inlet pipe 131, an air outlet pipe 132 and an air supply pipe 133. The first pressure tank 110 and the second pressure tank 120 are both connected to the air outlet pipe 132 through an air inlet pipe, and the two air inlet pipes are respectively provided with a first air inlet valve 141 and a second air inlet valve 142. The first pressure tank 110 and the second pressure tank 120 are both connected to the air inlet pipe 131 through an air outlet pipe, and the two air outlet pipes are respectively provided with a first air outlet valve 151 and a second air outlet valve 152. The pressure tank 110 and the second pressure tank 120 are both connected with a liquid inlet pipe 160, and the two liquid inlet pipes 160 are respectively provided with a first liquid inlet check valve 161 and a second liquid inlet check valve 162; the first pressure tank 110 and the second pressure tank 120 are both connected with a liquid outlet pipe 170, and the two liquid outlet pipes 170 are respectively provided with a first liquid outlet valve 171 and a second liquid outlet valve 172; the first pressure tank 110 and the second pressure tank 120 are both connected with an exhaust pipe 113, and the two exhaust pipes 113 are respectively provided with a first exhaust valve 114 and a second exhaust valve 123; the first pressure tank 110 and the second pressure tank 120 are respectively provided with a first pressure detector 115 and a second pressure detector 124.

[0029] When the liquid extraction device 100 provided by the embodiment of the utility model is operating to extract liquid, firstly, high-pressure gas will enter the pressure tank storing low-pressure liquid from a pressure tank, so that the high-pressure gas assists the air compression device 130 to convert the low-pressure liquid in the pressure tank into high-pressure liquid, and the high-pressure liquid is discharged from the liquid outlet pipe 170 through the liquid outlet valve to achieve the extraction of liquid. Under the same power condition, the high-pressure gas in the liquid extraction device 100 provided by the embodiment of the utility model can reduce the operating energy consumption of the air compression device 130, thereby achieving the effect of reducing energy consumption, and has the advantages of energy saving and environmental protection.

[0030] The liquid extraction device 100 provided in the embodiment of the present utility model, further, please refer to Figure 1The first pressure tank 110 is provided with a first proximity switch 111 at the upper end of its liquid outlet, and the first proximity switch 111 is used to detect the liquid level of the liquid in the first pressure tank 110; the second pressure tank 120 is provided with a second proximity switch 121 at the upper end of its liquid outlet, and the second proximity switch 121 is used to detect the liquid level of the liquid in the second pressure tank 120. When the liquid level in the first pressure tank 110 drops to the first proximity switch 111, the first proximity switch 111 is triggered to control the first air inlet valve 141, the second air outlet valve 152 and the first liquid outlet valve 171 to be closed, and at the same time, the second air inlet valve 142, the first air outlet valve 151 and the second liquid outlet valve 172 to be opened; when the liquid level in the second pressure tank 120 drops to the second proximity switch 121, the second proximity switch 121 is triggered to control the second air inlet valve 142, the first air outlet valve 151 and the second liquid outlet valve 172 to be closed, and at the same time, the first air inlet valve 141, the second air outlet valve 152 and the first liquid outlet valve 171 to be opened.

[0031] The liquid extraction device 100 provided in the embodiment of the present utility model, further, please refer to Figure 1 A first float switch 112 is placed in the first pressure tank 110. The first float switch 112 can float on the upper surface of the liquid in the first pressure tank 110 and can block the air inlet and outlet of the first pressure tank 110. A second float switch 122 is placed in the second pressure tank 120. The second float switch 122 can float on the upper surface of the liquid in the second pressure tank 120 and can block the air inlet and outlet of the second pressure tank 120. When the liquid inlet pipe 160 feeds liquid into the pressure tank through the liquid inlet check valve, the float switch can float on the upper surface of the liquid in the pressure tank. As the amount of liquid in the pressure tank increases, the liquid level rises, and the float switch floating on the upper surface of the liquid in the pressure tank can block the air inlet and outlet of the pressure tank, thereby preventing the liquid in the pressure tank from entering the air compression device 130 from the air inlet and outlet. The first exhaust valve 114 and the second exhaust valve 123 are provided with opening signals by the first pressure detector 115 and the second pressure detector 124 respectively, and are also provided with closing signals by the first float switch 112 and the second float switch 122.

[0032] The liquid extraction device 100 provided in the embodiment of the present utility model, further, please refer to Figure 1 , a filter 163 is provided on the liquid inlet pipe 160, and the filter 163 is used to filter the liquid entering the liquid inlet pipe 160. A gas replenishment check valve 134 is provided on the air supply pipe 133, and the gas replenishment check valve 134 is used to replenish gas to the air compression device 130. In this embodiment, the air inlet valve, the air outlet valve, the liquid outlet valve and the exhaust valve are all solenoid valves. The liquid outlet ends of the two liquid outlet pipes 170 are connected to the same drainage pipe 173, and a drainage check valve 174 is installed on the drainage pipe 173.

[0033] The present utility model also provides a liquid extraction method, which is applied to the liquid extraction device 100 provided in the above embodiment. The liquid extraction device 100 is in an initial state before operation. In the initial state:

[0034] The first pressure tank 110 is filled with liquid, the second pressure tank 120 is filled with high-pressure air, and each air inlet valve, each air outlet valve, each liquid inlet check valve, each liquid outlet valve and each exhaust valve are in a closed state; the liquid inlet pipeline, the filter, the first pressure tank and the second pressure tank are all installed below the water surface. If the compressor is waterproof, it can also be installed below the water surface, but the air supply pipe 133 and the exhaust pipe 113 are both located above the water surface. The main function of the exhaust valve is to quickly exhaust the pressure tank so that the liquid can quickly fill the pressure tank with liquid through the water inlet check valve.

[0035] In this embodiment, the liquid inlet pipe, the filter, the first pressure tank, and the second pressure tank are all installed below the water surface, and can be directly immersed in the liquid, or a partition wall 180 can be built below the water surface and installed inside the partition wall 180. However, the air supply pipe 133 and the exhaust pipe 113 are both above the water surface. The main function of the exhaust valve is to quickly exhaust the pressure tank so that the liquid can pass through the water inlet check valve and quickly fill the pressure tank with liquid.

[0036] The liquid extraction method provided by the embodiment of the utility model comprises the following steps:

[0037] S10: Open the first air inlet valve 141, the second air outlet valve 152 and the first liquid outlet valve 171, and start the air compression device 130; the high-pressure air in the second pressure tank 120 enters the air compression device 130 through the second air outlet valve 152, and the high-pressure gas discharged from the air compression device 130 enters the first pressure tank 110 through the first air inlet valve 141, and the normal-pressure liquid in the first pressure tank 110 is converted into a high-pressure liquid. When the second pressure detector 124 detects that the pressure in the second pressure tank 120 is less than the set value or equal to the normal pressure, the second exhaust valve 123 is controlled to open, and the liquid in the liquid inlet pipeline 160 enters the second pressure tank 120 through the second liquid inlet check valve 162 due to the effect of atmospheric pressure. When the second float switch 122 blocks the air inlet and outlet of the second pressure tank 120, the second exhaust valve 123 is controlled to close, and the high-pressure liquid in the first pressure tank 110 flows out of the liquid outlet pipeline 170 through the first liquid outlet valve 171;

[0038] S20: When the liquid level in the first pressure tank 110 drops to the first proximity switch 111, the first proximity switch 111 is triggered to control the first air inlet valve 141, the second air outlet valve 152 and the first liquid outlet valve 171 to be closed. At the same time, the second air inlet valve 142, the first air outlet valve 151 and the second liquid outlet valve 172 are opened. The high-pressure air in the first pressure tank 110 enters the air compression device 130 through the first air outlet valve 151, and the high-pressure gas discharged from the air compression device 130 enters the second pressure tank 120 through the second air inlet valve 142. The normal pressure liquid in the tank 120 is converted into high pressure liquid. When the first pressure detector 115 detects that the pressure in the first pressure tank 110 is less than the set value or equal to the normal pressure, the first exhaust valve 114 is controlled to open, and the liquid in the liquid inlet pipe 160 enters the first pressure tank 110 through the first liquid inlet check valve 161 due to the effect of atmospheric pressure. When the first float switch 112 blocks the air inlet and outlet of the first pressure tank 110, the first exhaust valve 114 is controlled to close, and the high pressure liquid in the second pressure tank 120 flows out from the liquid outlet pipe 170 through the second liquid outlet valve 172;

[0039] S30: When the liquid level in the second pressure tank 120 drops to the second proximity switch 121, the second proximity switch 121 is triggered; then steps S10-S20 are looped to achieve continuous operation of the liquid extraction device 100.

[0040] The liquid extraction device 100 contains two media, air and liquid. The air and liquid run in the gas circuit and liquid circuit in the system respectively. The air compression device 130 directly provides the functions of air pressurization and air flow in the gas circuit, and indirectly provides the functions of liquid pressurization and liquid flow in the liquid circuit. The liquid in the liquid circuit is pressurized by the high-pressure air in the gas circuit to form a high-pressure liquid. The high-pressure liquid flows out of the liquid outlet pipe 170 through the liquid circuit to realize the extraction of the liquid.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0042] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. A liquid extraction device, characterized in that: The liquid extraction equipment includes a first pressure tank, a second pressure tank and an air compression device, the air compression device is provided with an air inlet pipe, an air outlet pipe and an air supply pipe, the first pressure tank and the second pressure tank are both connected to the air outlet pipe through an air inlet pipe, the two air inlet pipes are respectively provided with a first air inlet valve and a second air inlet valve, the first pressure tank and the second pressure tank are both connected to the air inlet pipe through an air outlet pipe, the two air outlet pipes are respectively provided with a first air outlet valve and a second air outlet valve, the first pressure tank and the second pressure tank are both connected to a liquid inlet pipe, the two liquid inlet pipes are respectively provided with a first liquid inlet check valve and a second liquid inlet check valve, the first pressure tank and the second pressure tank are both connected to a liquid outlet pipe, the two liquid outlet pipes are respectively provided with a first liquid outlet valve and a second liquid outlet valve, the first pressure tank and the second pressure tank are both connected to an exhaust pipe, the two exhaust pipes are respectively provided with a first exhaust valve and a second exhaust valve, and the first pressure tank and the second pressure tank are respectively provided with a first pressure detector and a second pressure detector.

2. The liquid extraction device according to claim 1, characterized in that The first pressure tank is provided with a first proximity switch at the upper end of its liquid outlet, and the first proximity switch is used to detect the liquid level of the liquid in the first pressure tank; the second pressure tank is provided with a second proximity switch at the upper end of its liquid outlet, and the second proximity switch is used to detect the liquid level of the liquid in the second pressure tank.

3. The liquid extraction device according to claim 1, characterized in that A first float switch is placed in the first pressure tank, and the first float switch can float on the upper surface of the liquid in the first pressure tank and can block the air inlet and outlet of the first pressure tank; a second float switch is placed in the second pressure tank, and the second float switch can float on the upper surface of the liquid in the second pressure tank and can block the air inlet and outlet of the second pressure tank.

4. The liquid extraction device according to claim 1, characterized in that The liquid inlet pipeline is provided with a filter, and the filter is used to filter the liquid entering the liquid inlet pipeline.

5. The liquid extraction device according to claim 1, characterized in that: The air supply pipe is provided with an air supply one-way valve, and the air supply one-way valve is used to supply gas to the air compression device.

6. The liquid extraction device according to claim 1, characterized in that The air inlet valve, the air outlet valve, the liquid outlet valve and the exhaust valve are all solenoid valves.

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