CN215454790U - Low-head potential energy jet pump and land-based box-type circulating water aquaculture system - Google Patents
Low-head potential energy jet pump and land-based box-type circulating water aquaculture system Download PDFInfo
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- CN215454790U CN215454790U CN202121679503.8U CN202121679503U CN215454790U CN 215454790 U CN215454790 U CN 215454790U CN 202121679503 U CN202121679503 U CN 202121679503U CN 215454790 U CN215454790 U CN 215454790U
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Abstract
The utility model discloses a low-head potential energy jet pump and a land-based box-type circulating water aquaculture system, which comprise: the outer sleeve is provided with a first liquid inlet and a first liquid outlet, and the first liquid inlet is lower than the first liquid outlet; the outer sleeve inlet section control valve is arranged on the outer sleeve and used for controlling the opening and closing of the first liquid inlet; the outer sleeve outlet section control valve is arranged on the outer sleeve and used for controlling the opening and closing of the first liquid outlet; the jet pipe is provided with a second liquid inlet and a second liquid outlet, the second liquid inlet is higher than the second liquid outlet, the second liquid outlet is positioned in the outer sleeve, and the outlet direction of the second liquid outlet faces the first liquid outlet; and the jet flow control valve is arranged on the jet pipe and used for controlling the opening and closing of the second liquid outlet. The utility model can lift the liquid with the lowest potential to a certain height between the liquid with the highest potential and the liquid with the lowest potential by utilizing the potential energy of the liquid with the highest potential, and the continuous lifting process does not need any external power.
Description
Technical Field
The utility model relates to the technical field of water pump equipment, in particular to a low-water-head potential energy jet pump and a land-based box type circulating water aquaculture system.
Background
Pumps are common devices used to lift liquids, and usually require power to drive, i.e., consume energy. The jet pump commonly used in industry uses an active pump to generate high-pressure jet flow to drive the jet pump to work, or uses high-pressure jet flow with large water head difference (usually not less than 20m) to drive the jet pump to work. Both of the above cases are high voltage and high energy consumption with efficiency not exceeding 40%.
In some occasions, when the two parts of liquid have a height difference and need or can be mixed, although the height difference is relatively small and the potential energy is limited, the flow is large and lasts for 24 hours every day, the well designed low-water-head potential energy jet pump is used for lifting the liquid at the lower position by utilizing the potential energy of the liquid at the higher position, and therefore the jet pump has important significance of energy conservation and consumption reduction.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a low-water-head potential energy jet pump which can utilize potential energy formed by a small liquid level difference as power to lift liquid at a low level.
The utility model also provides a land-based box type circulating water aquaculture system with the low-head potential energy jet pump.
A low head potential jet pump according to an embodiment of a first aspect of the present invention comprises:
the outer sleeve is provided with a first liquid inlet and a first liquid outlet, and the first liquid inlet is lower than the first liquid outlet;
the outer sleeve inlet section control valve is arranged on the outer sleeve and used for controlling the opening and closing of the first liquid inlet;
the outer sleeve outlet section control valve is arranged on the outer sleeve and used for controlling the opening and closing of the first liquid outlet;
the jet pipe is provided with a second liquid inlet and a second liquid outlet, the second liquid inlet is higher than the second liquid outlet, the second liquid outlet is positioned in the outer sleeve, and the outlet direction of the second liquid outlet faces the first liquid outlet;
and the jet flow control valve is arranged on the jet pipe and used for controlling the opening and closing of the second liquid outlet.
The low-water-head potential energy jet pump provided by the embodiment of the utility model at least has the following beneficial effects: the working principle of the low-head potential energy jet pump is as follows: the high-level fluid is driven by potential energy to form a jet flow with higher flow speed at the outlet of the jet flow pipe through the jet flow infusion pipe, and the jet flow can form negative pressure in the area near the outlet of the jet flow pipe, so that the low-level liquid is sucked from the inlet end of the outer sleeve and flows out from the outlet end of the outer sleeve under the drive of the jet flow, and continuous lifting of the low-level liquid is formed. The device can lift the liquid with the lowest potential to a certain height between the liquid with the highest potential and the liquid with the lowest potential by utilizing the potential energy of the liquid with the highest potential, and does not need any external power for the continuous lifting process.
According to some embodiments of the utility model, the jet pipe comprises an inner jet pipe and a jet infusion pipe which are communicated end to end, the inner jet pipe is located in the outer sleeve, the second liquid outlet is arranged on the inner jet pipe, and the second liquid inlet is arranged on the jet infusion pipe.
According to some embodiments of the utility model, the inner jet pipe has a length of 3 to 8 times its pipe diameter.
According to some embodiments of the utility model, the outer sleeve has a tube diameter of 1.5-2.5 times the tube diameter of the inner fluidic tube.
According to some embodiments of the present invention, the length of the outer sleeve from the second liquid outlet to the first liquid outlet is 10-30 times the diameter of the inner fluidic tube.
According to some embodiments of the present invention, a shrinking section is disposed on the outer sleeve, the shrinking section is disposed from the second liquid outlet to the first liquid outlet, and a length of the shrinking section is 4-8 times an aperture of the second liquid outlet.
According to some embodiments of the utility model, the jet infusion tube has a tube diameter equal to or greater than the inner jet tube.
According to some embodiments of the utility model, the exhaust pipe is communicated with the outer sleeve, and the exhaust pipe is provided with an exhaust pipe control valve for controlling the opening and closing of the exhaust pipe.
A land-based box-type circulating water aquaculture system according to a second aspect embodiment of the utility model comprises the above-mentioned low head potential energy jet pump; and
a cultivation tank for aquatic organism cultivation;
the tail water treatment channel is provided with a starting end and a tail end, the liquid level of the starting end is higher than that of the tail end, the liquid level of the culture box is higher than that of the starting end, and liquid in the starting end can freely flow to the tail end;
the first liquid inlet extends into the position below the liquid level of the tail end;
the first liquid outlet extends to the position below the liquid level of the starting end;
the second liquid inlet extends into the liquid in the culture box.
The land-based box-type circulating water aquaculture system provided by the embodiment of the utility model at least has the following beneficial effects: the device can lift the liquid in the tail end of the tail water treatment ditch liquid with the lowest potential to the liquid height in the starting end of the tail water treatment ditch liquid between the tail water treatment ditch liquid and the tail water treatment ditch liquid by utilizing the potential energy of the liquid in the culture box with the highest potential, and the continuous lifting process does not need any external power and maintains the continuous circulating flow in the tail water treatment ditch by adding tail water raw water from the culture box continuously.
According to the land-based box-type circulating water aquaculture system provided by the embodiment of the utility model, the first liquid inlet and the/or
Or the second liquid inlet is provided with a filtering grid.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a low head potential jet pump according to an embodiment of the utility model;
FIG. 2 is a schematic structural diagram of a land-based box-type circulating water aquaculture system according to an embodiment of the present invention.
Reference numerals:
100. an outer sleeve; 110. a first liquid inlet; 120. a first liquid outlet; 130. a contraction section;
200. an outer sleeve inlet section control valve;
300. a control valve at the outlet section of the outer sleeve;
400. a jet pipe; 410. a second liquid inlet; 420. a second liquid outlet; 430. an inner jet pipe; 440. a jet flow transfusion tube;
500. a jet control valve;
600. an exhaust pipe;
700. an exhaust pipe control valve;
810. a breeding box; 820. a starting end; 830. and (4) ending.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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 thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1, a low head potential jet pump according to an embodiment of the present invention includes:
an outer sleeve 100, the outer sleeve 100 having a first inlet 110 and a first outlet 120, the first inlet 110 being lower than the first outlet 120;
the outer sleeve inlet section control valve 200 is arranged on the outer sleeve 100 and is used for controlling the opening and closing of the first liquid inlet 110;
an outer sleeve outlet section control valve 300 disposed on the outer sleeve 100 for controlling opening and closing of the first liquid outlet 120;
the jet pipe 400, the jet pipe 400 has a second liquid inlet 410 and a second liquid outlet 420, the second liquid inlet 410 is higher than the second liquid outlet 420, the second liquid outlet 420 is located in the outer sleeve 100, and the outlet direction of the second liquid outlet 420 faces the first liquid outlet 120;
and the jet flow control valve 500 is arranged on the jet pipe 400 and used for controlling the opening and closing of the second liquid outlet 420.
The exhaust pipe 600 is communicated with the outer sleeve 100, and an exhaust pipe control valve 700 is arranged on the exhaust pipe 600 and used for controlling the opening and closing of the exhaust pipe 600.
As shown in fig. 1 and fig. 2, the low head potential energy jet pump of the utility model works according to the following principle: the fluid at the high level is driven by the potential energy to form a jet flow with a higher flow velocity at the second liquid outlet 420 through the jet pipe 400, and the jet flow forms a negative pressure in the vicinity of the second liquid outlet 420, so that the liquid at the low level is sucked from the first liquid inlet 110 and flows out from the first liquid outlet 120 under the drive of the jet flow, that is, a continuous lift of the liquid at the low level is formed.
The utility model discloses a low water head potential energy jet pump opening method, which comprises the following general steps:
firstly, exhausting air, and draining air in the jet pump by filling water into the low-head potential energy jet pump. There are two types of exhaust methods:
1.1, when the exhaust pipe 600 is not provided, submerging the second liquid outlet 420 below the liquid level of the middle position, closing the jet control valve 500, opening the outer sleeve inlet section control valve 200 and the outer sleeve outlet section control valve 300, and allowing the liquid to flow into the outer sleeve 100 from the first liquid outlet 120 to fill the outer sleeve 100, thereby completing the exhaust.
After the exhaust is completed, the jet flow control valve 500 is opened, and the low-head potential energy jet pump is started, so that the low-position liquid can be lifted to the middle position.
1.2, when the exhaust pipe 600 is arranged, the jet flow control valve 500, the outer sleeve inlet section control valve 200 and the outer sleeve outlet section control valve 300 are closed at the same time, the exhaust pipe control valve 700 is opened, liquid is filled from the outlet of the exhaust pipe 600, and the outer sleeve 100 is filled to exhaust air in the pump. After the exhaust is finished, the jet flow control valve 500, the outer sleeve inlet section control valve 200 and the outer sleeve outlet section control valve 300 are sequentially opened, the low-water-head potential energy jet pump is started, and finally the exhaust pipe control valve 700 is closed, so that the low-position liquid can be lifted to the middle position.
In some embodiments of the present invention, the jet pipe 400 comprises an inner jet pipe 430 and a jet infusion pipe 440 which are connected end to end, the inner jet pipe 430 is located in the outer sleeve 100, the second liquid outlet 420 is disposed on the inner jet pipe 430, and the second liquid inlet 410 is disposed on the jet infusion pipe 440.
In some embodiments of the present invention, the length of the inner fluidic tube 430 is 3-8 times its tube diameter.
In some embodiments of the present invention, the outer sleeve 100 has a tube diameter that is 1.5-2.5 times the tube diameter of the inner fluidic tube 430.
In some embodiments of the present invention, the length of the outer sleeve 100 from the second liquid outlet 420 to the first liquid outlet 120 is 10-30 times the diameter of the inner fluid pipe 430.
In some embodiments of the present invention, the outer sleeve 100 is provided with a contracting section 130, the contracting section 130 is arranged from the second liquid outlet 420 to the first liquid outlet 120, and the length of the contracting section 130 is 4-8 times of the aperture of the second liquid outlet 420.
In some embodiments of the present invention, the diameter of the jet infusion tube 440 is equal to or larger than the inner jet tube 430.
In some embodiments of the present invention, the exhaust pipe 600 is further included, the exhaust pipe 600 is communicated with the outer sleeve 100, and the exhaust pipe 600 is provided with an exhaust pipe control valve 700 for controlling opening and closing of the exhaust pipe 600.
The utility model also discloses a land-based box-type circulating water aquaculture system which comprises the low-water-head potential energy jet pump; and
a cultivation tank 810 for aquatic organism cultivation;
the tail water treatment channel is provided with a starting end 820 and a tail end 830, the liquid level of the starting end 820 is higher than that of the tail end 830, the liquid level of the culture box 810 is higher than that of the starting end 820, and liquid in the starting end 820 can freely flow to the tail end 830;
the first liquid inlet 110 extends below the liquid level at the tail end 830;
the first liquid outlet 120 extends below the liquid level at the beginning 820;
the second inlet port 410 extends into the liquid in the cultivation tank 810.
In some embodiments of the utility model, it is determined whether a filter grid is provided at the first intake port 110 and the second intake port 410 based on whether larger size solid impurities are present in the habitat 810.
Based on the installation manner of fig. 2, the water level in the cultivation box 810 on the land is higher than the water level at the beginning of the tail water treatment channel (including oxidation channel, ecological channel, etc.), and the water flowing from the beginning 820 to the end 830 of the tail water treatment channel will fall by H meters. In the culture process, tail water in the channel is lifted from the tail end 830 of the tail water treatment channel to the starting end 820 according to the reflux rate, and tail water raw water from the culture tank 810 is continuously added to maintain continuous circulating flow in the tail water treatment channel.
Definition VA、VB、VB'、VC、VDAverage flow velocities, p, at duct sections A, B, B', C and D, respectivelyB、pB'B, B ', wherein A is the section of the first liquid outlet 120, B is the section of the second liquid inlet 410, B' is the section of the outer sleeve 100 which is on the same section with B, C is the section of the first liquid inlet 110, D is the section of the second liquid inlet 410, Q is the flow rate of the jet flow, and Q is the flow rate lifted by the jet flow. Neglecting the finite influence of pipe diameter on water head, the continuous equation, momentum equation and energy equation give:
wherein H, H and q are known, RD、RB、RC、RA、RB'Diameter of pipe of corresponding cross-section, paIs the ground atmospheric pressure; h isf1Is the sum of local and on-way energy losses of the inner jet pipe, hf2The total loss of the outer sleeve from the inlet to the outlet of the inner jet pipe is the sum of local loss and path loss, and F tau is the total frictional resistance of the outer sleeve pipe wall from the inner jet outlet to the outer sleeve outlet, and needs to be estimated by a hydraulic method respectively. According to the above calculation formula, in the practical application process, each parameter is set according to the lifting condition of the water level.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like are intended to mean 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 utility model. 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.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A low head potential energy jet pump, comprising:
the outer sleeve is provided with a first liquid inlet and a first liquid outlet, and the first liquid inlet is lower than the first liquid outlet;
the outer sleeve inlet section control valve is arranged on the outer sleeve and used for controlling the opening and closing of the first liquid inlet;
the outer sleeve outlet section control valve is arranged on the outer sleeve and used for controlling the opening and closing of the first liquid outlet;
the jet pipe is provided with a second liquid inlet and a second liquid outlet, the second liquid inlet is higher than the second liquid outlet, the second liquid outlet is positioned in the outer sleeve, and the outlet direction of the second liquid outlet faces the first liquid outlet;
and the jet flow control valve is arranged on the jet pipe and used for controlling the opening and closing of the second liquid outlet.
2. The low head potential jet pump of claim 1 wherein: the jet pipe comprises an inner jet pipe and a jet liquid conveying pipe which are communicated end to end, the inner jet pipe is positioned in the outer sleeve, the second liquid outlet is arranged on the inner jet pipe, and the second liquid inlet is arranged on the jet liquid conveying pipe.
3. The low head potential jet pump of claim 2, wherein: the length of the inner jet pipe is 3-8 times of the pipe diameter of the inner jet pipe.
4. The low head potential jet pump of claim 2, wherein: the pipe diameter of the outer sleeve is 1.5-2.5 times of the pipe diameter of the inner jet pipe.
5. The low head potential jet pump of claim 2, wherein: the length of the outer sleeve corresponding to the second liquid outlet to the first liquid outlet is 10-30 times of the pipe diameter of the inner jet pipe.
6. The low head potential jet pump of claim 2, wherein: the outer sleeve is provided with a contraction section, the contraction section is arranged from the second liquid outlet to the first liquid outlet, and the length of the contraction section is 4-8 times of the caliber of the second liquid outlet.
7. The low head potential jet pump of claim 2, wherein: the pipe diameter of the jet flow transfusion pipe is equal to or larger than that of the inner jet flow pipe.
8. The low head potential jet pump of claim 1 wherein: the exhaust pipe is communicated with the outer sleeve, and an exhaust pipe control valve is arranged on the exhaust pipe and used for controlling the opening and closing of the exhaust pipe.
9. A land-based box-type circulating water aquaculture system is characterized in that: a low head potential jet pump comprising the low head potential jet pump of any one of claims 1 to 8; and
a cultivation tank for aquatic organism cultivation;
the tail water treatment channel is provided with a starting end and a tail end, the liquid level of the starting end is higher than that of the tail end, the liquid level of the culture box is higher than that of the starting end, and liquid in the starting end can freely flow to the tail end;
the first liquid inlet extends into the position below the liquid level of the tail end;
the first liquid outlet extends to the position below the liquid level of the starting end;
the second liquid inlet extends into the liquid in the culture box.
10. The land-based box-type circulating water aquaculture system of claim 9, wherein: and a filtering grid is arranged on the first liquid inlet and/or the second liquid inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679503.8U CN215454790U (en) | 2021-07-22 | 2021-07-22 | Low-head potential energy jet pump and land-based box-type circulating water aquaculture system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679503.8U CN215454790U (en) | 2021-07-22 | 2021-07-22 | Low-head potential energy jet pump and land-based box-type circulating water aquaculture system |
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| Publication Number | Publication Date |
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| CN215454790U true CN215454790U (en) | 2022-01-11 |
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|---|---|---|---|
| CN202121679503.8U Active CN215454790U (en) | 2021-07-22 | 2021-07-22 | Low-head potential energy jet pump and land-based box-type circulating water aquaculture system |
Country Status (1)
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| CN (1) | CN215454790U (en) |
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2021
- 2021-07-22 CN CN202121679503.8U patent/CN215454790U/en active Active
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