Quantitative determination method for oxygenation by utilizing Venturi effect and related equipment

Abstract

The invention discloses a quantitative determination method and device for oxygenation by utilizing a Venturi effect, electronic equipment and a storage medium. The method comprises the following steps: acquiring a pressure difference between the pressure of an inlet of a second narrow tube in an oxygenation tube and the pressure in the second narrow tube; according to the pressure difference, the ratio of the diameter of the second narrowed tube to the diameter of the oxygenation tube and the sectional area of the oxygenation tube, the gas volume flow in the oxygenation tube is determined based on the Venturi effect; according to the gas volume flow and the gas flowing time, the theoretical gas increasing amount is obtained through calculation; according to the theoretical oxygen increasing amount and the air oxygen content ratio, the theoretical oxygen increasing amount is obtained through calculation; liquid dissolved oxygen amount values before and after oxygenation of liquid in the irrigation pipe are obtained, and the actual oxygenation amount of the liquid is calculated; and correcting the theoretical oxygen increasing amount according to the actual oxygen increasing amount to obtain a correction function relationship between the actual oxygen increasing amount and the theoretical oxygen increasing amount. According to the invention, the oxygen increasing amount in the water body can be quantitatively measured by utilizing the Venturi effect. And the relationship between the size of the second narrow tube bundle and the oxygenation amount is indicated.

Description

Technical Field

[0001] The invention relates to the technical field of venturi tube oxygenation measurement, and in particular to a quantitative determination method, device, electronic equipment and storage medium for oxygenation using the venturi effect. Background Art

[0002] In the process of plant irrigation, ensuring the oxygen content in the water plays a key role in plant growth. The Venturi effect can be used for oxygenation. The Venturi effect is that when a fluid flows through a confined flow section in a pipe, the flow velocity of the fluid increases and the pressure of the fluid decreases.

[0003] In the prior art, when a venturi tube is used for oxygenated irrigation, an opening is generally made on one side of the throat section of the venturi tube, and air is introduced into the venturi tube from the opening of the throat section by utilizing the characteristics of high flow velocity and low pressure of the fluid in the throat of the venturi tube, and mixed with the fluid in the venturi tube, so as to increase air in the liquid in the venturi tube and achieve oxygenated irrigation.

[0004] However, there is currently no method to quantitatively detect the amount of gas and oxygen added during Venturi tube irrigation, and there is no indication of the relationship between the diameter of the throat section and its oxygen addition. Summary of the invention

[0005] The main purpose of the present invention is to propose a quantitative determination method of oxygenation using the Venturi effect, aiming to solve the problem that the amount of aeration and oxygenation during irrigation is not quantitatively measured and there is no relationship between the diameter of the throat section and its aeration amount.

[0006] To achieve the above object, the present invention proposes a quantitative determination method for oxygenation using the Venturi effect, the quantitative determination method for oxygenation using the Venturi effect comprising:

[0007] Obtaining the pressure difference between the inlet pressure of the second bundle of narrow tubes in the aeration tube and the pressure inside the second bundle of narrow tubes;

[0008] According to the pressure difference, the ratio of the diameter of the second narrow tube bundle to the diameter of the oxygenation tube, and the cross-sectional area of ​​the oxygenation tube, the volume flow rate of the gas in the oxygenation tube is determined based on the Venturi effect;

[0009] Calculating a theoretical gas increase amount according to the gas volume flow rate and the gas flow time;

[0010] The theoretical oxygen increase amount is calculated according to the theoretical air increase amount and the oxygen content ratio of the air;

[0011] Obtain the dissolved oxygen content of the liquid in the irrigation pipe before and after oxygenation, and calculate the actual oxygenation amount of the liquid;

[0012] The theoretical oxygen increase amount is corrected according to the actual oxygen increase amount to obtain a correction function relationship between the actual oxygen increase amount and the theoretical oxygen increase amount.

[0013] Preferably, a first gas pressure value at the inlet of the second bundle of narrow tubes in the oxygenation tube is obtained;

[0014] Obtaining the second gas pressure values ​​in the second narrow tubes of different sizes;

[0015] Calculating the gas volume flow rate corresponding to the second bundle of narrow tubes of different sizes according to the first gas pressure value and the second gas pressure value;

[0016] A first functional relationship between the size of the second bundle of narrow tubes and the theoretical oxygen increase amount is established according to the gas volume flow rate.

[0017] Preferably, before obtaining the dissolved oxygen content values ​​of the liquid in the irrigation pipe before and after oxygenation, the method further includes:

[0018] Obtaining a first liquid pressure value at an inlet of a first bundle of narrow tubes in the irrigation pipe;

[0019] Obtaining pressure values ​​of the second liquid in the first bundle of narrow tubes of different sizes;

[0020] The liquid volume flow rates corresponding to the first bundles of narrow tubes of different sizes are calculated according to the first liquid pressure value and the second liquid pressure value.

[0021] Preferably, the calculation of the actual oxygenation amount of the liquid comprises:

[0022] Calculating the liquid flow volume according to the liquid volume flow rate and the liquid flow time;

[0023] Calculating the actual oxygen increase amount according to the liquid dissolved oxygen content and the liquid flow volume;

[0024] A second functional relationship between the size of the first bundle of narrow tubes and the actual oxygen increase amount is established.

[0025] Preferably, based on the first functional relationship and the second functional relationship, a total functional relationship between the size of the second bundle of narrow tubes and the size of the first bundle of narrow tubes and the actual oxygen increase amount is established.

[0026] Preferably, the oxygenation tube can also be used for other liquids.

[0027] Preferably, the oxygen proportion in the air is calculated according to the theoretical gas increase amount and the oxygen content value of the liquid after gas increase.

[0028] The present invention further proposes a quantitative determination device for oxygenation using the Venturi effect, comprising:

[0029] An oxygenation pipe, wherein a second bundle of narrow tubes is arranged in the oxygenation pipe; the outer wall of the second bundle of narrow tubes abuts against a second threaded rod, and the second threaded rod is used to quantitatively change the size of the second bundle of narrow tubes;

[0030] An irrigation pipe, wherein a first bundle of narrow tubes is arranged inside the irrigation pipe, and the outlet of the aeration pipe is connected to the tube wall of the first bundle of narrow tubes; the outer wall of the first bundle of narrow tubes abuts against a first threaded rod, and the first threaded rod is used to quantitatively change the size of the first bundle of narrow tubes;

[0031] A pressure probe, disposed in the aeration pipe and the irrigation pipe, for detecting the fluid pressure in the pipe;

[0032] The test probes are arranged at the inlet and outlet of the irrigation pipe and are used to detect the oxygen content of the liquid in the irrigation pipe.

[0033] The present invention also provides an electronic device, comprising:

[0034] a memory for storing program instructions; and

[0035] A processor is used to execute the program instructions to implement any of the methods described above.

[0036] The present invention also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, wherein the computer instructions are used to enable a computer to execute any of the above methods.

[0037] In the present invention, by measuring the precise flow rate and time of the gas in the oxygenation pipe, the theoretical gas increase amount and the theoretical oxygen increase amount are calculated, which can be compared and analyzed with the actual oxygen increase amount; by dynamically adjusting the size of the second bundle of narrow tubes, the theoretical gas increase amount and the theoretical oxygen increase amount under different conditions can be quickly determined, and the functional relationship between the size of the second bundle of narrow tubes and the theoretical oxygen increase amount is obtained, which intuitively reflects the connection between the two and makes the oxygenation regulation more accurate; further, by measuring the dissolved oxygen content of the liquid in the irrigation pipe before and after oxygenation, the functional relationship is corrected, and the relationship between the second bundle of narrow tubes and the actual oxygen increase amount is established, so that the operator can adjust the size of the second bundle of narrow tubes to adjust the actual oxygen increase amount of the irrigation pipe, so as to meet the needs of oxygenated irrigation of different crops and optimize the utilization efficiency of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic flow chart of a quantitative determination method of oxygenation using the Venturi effect in one embodiment of the present invention;

[0039] Figure 2 A flow chart for establishing a first functional relationship in one embodiment of the present invention;

[0040] Figure 3 A flow chart of measuring liquid volume flow rate in one embodiment of the present invention;

[0041] Figure 4 A flow chart of establishing a second functional relationship in one embodiment of the present invention;

[0042] Figure 5 It is a schematic structural diagram of a quantitative determination device for oxygenation using the Venturi effect in one embodiment of the present invention;

[0043] Figure 6 The figure is a schematic structural diagram of an electronic device of the present invention. DETAILED DESCRIPTION

[0044] The scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0047] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their 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 at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] Reference Figure 1 As shown, in one embodiment, a quantitative determination method of oxygenation using the Venturi effect is provided, which specifically includes the following steps.

[0049] Step S102, obtaining the pressure difference between the inlet pressure of the second bundle of narrow tubes in the oxygenation tube and the pressure inside the second bundle of narrow tubes.

[0050] A second bundle of narrow tubes is provided inside the aeration pipe. A tapered section is provided at the inlet of the second bundle of narrow tubes and a diffuser section is provided at the outlet. The second bundle of narrow tubes is fixed inside the aeration pipe so that the gas flows through the tapered section, the bundle of narrow tubes and the diffuser section in sequence. The bundle of narrow tubes is used to control the gas flow rate. The inlet pressure P of the second bundle of narrow tubes in and the pressure in the second narrow tube P c The pressure difference is calculated by real-time measurement of the pressure gauge: AP = P in -P c .

[0051] Step S104, determining the volume flow rate of gas in the oxygenation pipe based on the Venturi effect according to the pressure difference, the ratio of the diameter of the second bundle of narrow pipes to the diameter of the oxygenation pipe, and the cross-sectional area of ​​the oxygenation pipe.

[0052] According to the Venturi effect, the Bernoulli equation and the continuity equation can be used to calculate the gas volume flow rate Q in the aeration tube. gas :

[0053]

[0054] in:

[0055] ρ gas is the gas density (for example, the density of air is 1.29 kg / m 3 ).

[0056] C is the flow coefficient (usually calibrated through experiments, generally in the range of 0.95-0.99).

[0057] A gas is the cross-sectional area of ​​the aeration pipe inlet.

[0058] Δp is the pressure difference, that is, the difference between the inlet pressure of the second bundle of narrow tubes and the static pressure inside the second bundle of narrow tubes.

[0059] β is the ratio of the diameter of the second bundle of narrow tubes to the diameter of the oxygenation tube.

[0060] Step S106, calculating a theoretical gas increase amount according to the gas volume flow rate and the gas flow time.

[0061] Gas flow time refers to the time between when the pressure gauge measures the gas pressure and when the pressure gauge stops measuring the gas pressure, which can be used to calculate the flow volume of the gas.

[0062] According to the gas volume flow Q gaa and gas flow time T, calculate the theoretical gas increase V gas :

[0063] V gas =Q gas ·T

[0064] Step S108, according to the theoretical air increase amount and the oxygen content ratio of the air, the theoretical oxygen increase amount V is calculated. According to the volume ratio of oxygen in the air (usually 21%), the theoretical oxygen increase amount V is calculated. 0 :

[0065] V 0 =V gas ·twenty one%

[0066] Step S110, obtaining the dissolved oxygen content of the liquid in the irrigation pipe before and after oxygenation, and calculating the actual oxygenation content of the liquid.

[0067] The inlet and outlet of the irrigation pipe are equipped with test probes or sampling ports. The dissolved oxygen value of the liquid is directly obtained through the test probe or the dissolved oxygen value of the liquid is calculated by sampling through the sampling port. The dissolved oxygen concentration DO in the liquid before liquid oxygenation is measured in the irrigation pipe. in , the dissolved oxygen concentration DO in the liquid after liquid oxygenation out , according to the liquid flow volume V liq and the difference in dissolved oxygen ΔDO=DO out -DO in , calculate the actual oxygen increase M 1 :

[0068] M 1 =V liq ΔDO

[0069] The actual oxygen increase is expressed in volume: V 1 =M 1 ·ρ gas

[0070] Step S112, correcting the theoretical oxygen increase amount according to the actual oxygen increase amount, and obtaining a correction function relationship between the actual oxygen increase amount and the theoretical oxygen increase amount.

[0071] Comparison of theoretical oxygen increase V 0 The actual oxygen increase V 1 , and calculate the correction factor α:

[0072]

[0073] According to the correction factor α Establish correction function relationship with related variables (such as flow rate, pressure difference, liquid flow):

[0074] V 1 =α·V 0

[0075] The inner diameter of the second narrow tube bundle of the oxygenation tube, the gas flow rate and the liquid flow rate are optimized using a correction function relationship to achieve dynamic adjustment of the oxygenation efficiency.

[0076] In this embodiment, by measuring the pressure difference before and after the gas enters the second bundle of narrow tubes in real time, calculating the gas flow rate, and combining the change in dissolved oxygen concentration before and after liquid oxygenation, the relationship between the theoretical oxygenation amount and the actual oxygenation amount can be obtained, which can reflect the difference between theory and practice and provide better guidance for oxygenated irrigation. in is 101 kpa, and the pressure in the second narrow tube is P C is 98kpa, gas density ρ gas 1.29kg / m 3 , the inner diameter of the aeration tube is 100MM, then its cross-sectional area A gas 0.00785m 2 , gas flow time T is 60s, oxygen content in air is 21%, irrigation pipe liquid volume flow rate Q liq 10m 3 / s, dissolved oxygen content DO of liquid before aeration in 5mg / L, the dissolved oxygen content of the liquid after oxygenation is DO in is 20mg / L. According to the above assumptions, AP = 3kpa, Q gas =0.5814m 3 / s,V gas =34.88m 3 , V 0 =7.326m 3 , V 1 =6.29m 3 , then α is 0.8585. It can be seen that the actual oxygen increase is lower than the theoretical oxygen increase, and some air is not dissolved in the liquid.

[0077] Reference Figure 2 As shown, in one embodiment, the quantitative determination method further comprises:

[0078] Step S202, obtaining a first gas pressure value at an inlet of a second bundle of narrow tubes in the oxygenation tube.

[0079] The first gas pressure value is obtained by a pressure gauge, which is installed on the oxygenation pipe near the inlet of the second bundle of narrow tubes and away from the tapered section of the inlet of the second bundle of narrow tubes.

[0080] Step S204, obtaining the second gas pressure values ​​in the second bundle of narrow tubes of different sizes.

[0081] The second gas pressure value is obtained by a pressure gauge, which is installed on the second bundle of narrow tubes at the inlet thereof. The cross-sectional area of ​​the second bundle of narrow tubes can be changed to obtain second bundles of narrow tubes of different sizes, and the change in the cross-sectional area is reflected by the change in the gas pressure in the second bundle of narrow tubes.

[0082] Step S206, calculating the gas volume flow rate corresponding to the second bundle of narrow tubes of different sizes according to the first gas pressure value and the second gas pressure value.

[0083] When calculating the gas volume flow rate of the second bundle of narrow tubes of different sizes, other variables should be controlled. For example, the pressure of the gas entering the oxygenation tube should remain unchanged. In this way, there is only one variable of the size of the second bundle of narrow tubes, and the relationship between the variable and the gas flow rate is obtained, and then the relationship between the variable and the theoretical oxygenation amount is obtained. The diameter of the second bundle of narrow tubes is used as the independent variable d 2 , calculate the gas volume flow rate Q gas :

[0084]

[0085] in:

[0086] d 1 is the diameter of the aeration pipe. 2 is the diameter of the second narrow tube.

[0087] Step S208: establishing a first functional relationship between the size of the second bundle of narrow tubes and the theoretical oxygen increase amount according to the gas volume flow rate.

[0088]

[0089] The second bundle of narrow tubes is connected to its corresponding outer layer aeration tube through a screw rod, and a knob with a scale is provided on one side of the outer tube wall of the aeration tube. By rotating the knob with a scale, the size of the second bundle of narrow tubes can be changed. The cross-sectional area of ​​the second bundle of narrow tubes corresponding to different scales of the knob is recorded in advance.

[0090] In this embodiment, according to the Venturi effect, when the fluid flows in a confined space, the flow cross-sectional area decreases, causing its flow rate to increase and the pressure to decrease. Therefore, as the size of the second bundle of narrow tubes gradually decreases, the pressure difference gradually increases, and the theoretical oxygen increase gradually increases, but the growth rate slows down. When reducing the inner diameter of the second bundle of narrow tubes to increase the oxygen increase, the staff needs to consider the physical limitations and fluid resistance in actual applications to avoid excessive reduction of the inner diameter, which leads to a decrease in system efficiency. The staff selects the optimal range of the inner diameter of the second bundle of narrow tubes based on the oxygen increase demand and actual working conditions, so that the oxygen increase tube takes into account both oxygen increase performance and stability.

[0091] Reference Figure 3As shown, in one embodiment, before obtaining the dissolved oxygen value of the liquid in the irrigation pipe before and after oxygenation, the method further includes:

[0092] Step S302, obtaining a first liquid pressure value at an inlet of a first bundle of narrow tubes in the irrigation pipe.

[0093] A first bundle of narrow tubes is also provided in the irrigation pipe. A tapered section is provided at the inlet of the first bundle of narrow tubes and a diffuser section is provided at the outlet. The first bundle of narrow tubes is fixed inside the irrigation pipe so that the liquid flows through the tapered section, the bundle of narrow tubes section and the diffuser section in sequence. The bundle of narrow tubes is used to control the flow rate of the liquid. The pressure value of the first liquid is obtained by a pressure gauge. The pressure gauge is installed on the irrigation pipe near the inlet of the first bundle of narrow tubes and avoids the tapered section of the inlet of the first bundle of narrow tubes.

[0094] Step S304, obtaining the second liquid pressure values ​​in the first bundle of narrow tubes of different sizes.

[0095] The second liquid pressure value is obtained by a pressure gauge installed on the first bundle of narrow tubes at the inlet thereof. The cross-sectional area of ​​the first bundle of narrow tubes can be changed to obtain first bundles of narrow tubes of different sizes, and the change in the cross-sectional area is reflected by the change in the liquid pressure in the first bundle of narrow tubes.

[0096] Step S306, calculating the liquid volume flow rate corresponding to the first bundle of narrow tubes of different sizes according to the first liquid pressure value and the second liquid pressure value.

[0097] When calculating the liquid volume flow rate of the first bundle of narrow tubes of different sizes, other variables should be controlled. For example, the pressure of the liquid entering the irrigation pipe should remain unchanged, so that there is only one variable of the size of the first bundle of narrow tubes, and the relationship between the variable and the liquid flow rate is obtained. The first bundle of narrow tubes is connected to its corresponding outer irrigation pipe through a screw. The screw is provided with a knob with a scale on one side of the outer pipe wall of the irrigation pipe. By rotating the knob with a scale, the size of the first bundle of narrow tubes can be changed. The cross-sectional area of ​​the first bundle of narrow tubes corresponding to different scales of the knob is recorded in advance.

[0098] In this embodiment, the diameter of the first bundle of narrow tubes is used as the independent variable d 3 , calculate the liquid volume flow rate Q liq :

[0099]

[0100] Where ΔP liq is the pressure difference between the inlet of the first bundle of narrow tubes and the pressure inside the first bundle of narrow tubes. liq is the density of the liquid (for example, the density of water is 1000 kg / m 3 ). 4 is the irrigation pipe diameter.

[0101] Reference Figure 4 As shown, in one embodiment, the calculation of the actual oxygenation amount of the liquid includes:

[0102] Step S402, calculating the liquid flow volume according to the liquid flow rate, the cross-sectional area of ​​the irrigation pipe and the liquid flow time.

[0103] According to the liquid volume flow Q liq and liquid flow time T liq , calculate the liquid flow volume V liq :

[0104] V liq =Q liq ·T liq

[0105] Step S404: Calculate the actual oxygen increase amount according to the liquid dissolved oxygen amount and the liquid flow volume.

[0106] According to the liquid flow volume V liq and the difference in dissolved oxygen ΔDO=DO out -DO in , calculate the actual oxygen increase M 1 :

[0107] M 1 =V liq ΔDO

[0108] The actual oxygen increase is expressed in volume, V 1 =M 1 ·ρ gas .

[0109] Step S406: establishing a second functional relationship between the size of the first bundle of narrow tubes and the actual oxygen increase amount.

[0110] The second functional relationship:

[0111]

[0112] In one embodiment, a total functional relationship between the size of the second bundle of narrow tubes and the size of the first bundle of narrow tubes and the actual oxygen increase amount is established based on the first functional relationship and the second functional relationship.

[0113] V 1 =α·V 0

[0114] In this embodiment, the size parameters of the second bundle of narrow tubes and the first bundle of narrow tubes are adjusted according to the actual amount of oxygen added to the water body, and the oxygen addition effect is dynamically optimized to maximize the oxygen addition efficiency. For example, in agricultural irrigation, the size of the second bundle of narrow tubes and the first bundle of narrow tubes is directly adjusted according to the oxygen demand of the crop to match the oxygen addition amount with the crop demand.

[0115] In one embodiment, the oxygenation tube can also be used for other liquids.

[0116] In this embodiment, the aeration pipe can not only inject air, but also inject other liquids (such as fertilizer solutions or medicines), thereby achieving multi-functional use and improving the adaptability of the equipment.

[0117] In one embodiment, the oxygen ratio in the air is calculated according to the theoretical gas increase amount and the oxygen content value of the liquid after gas increase.

[0118] In this embodiment, when the oxygen content in the air at a certain place is unknown, the device can be used to obtain the air increase volume, the functional relationship between the size of the venturi narrow tube section and its air increase volume, and then by measuring the oxygen content before and after the venturi tube intake, the oxygen content in the air at a certain place can be reversed.

[0119] Reference Figure 5 As shown, the embodiment of the present invention further provides a quantitative determination device for oxygenation using the Venturi effect, to which the above method embodiment can be applied, and the device comprises:

[0120] The oxygenation pipe 500 has a second bundle of narrow tubes 510 disposed therein; the outer wall of the second bundle of narrow tubes 510 abuts against a second threaded rod 520, and the second threaded rod 520 is used to quantitatively change the size of the second bundle of narrow tubes 510;

[0121] An irrigation pipe 530, wherein a first bundle of narrow tubes 540 is disposed in the irrigation pipe 530, and the outlet of the oxygenation pipe 500 is connected to the tube wall of the first bundle of narrow tubes 540; the outer wall of the first bundle of narrow tubes 540 abuts against a first threaded rod 550, and the first threaded rod 550 is used to quantitatively change the size of the first bundle of narrow tubes 540;

[0122] A pressure gauge 560 is disposed in the aeration pipe 500 and the irrigation pipe 530 and is used to detect the fluid pressure in the pipe;

[0123] The test probe 570 is disposed at the inlet and outlet of the irrigation pipe 530 and is used to detect the oxygen content of the liquid in the irrigation pipe 530 .

[0124] In this embodiment, by arranging narrow tubes in the irrigation tube 530 and the oxygenation tube 500, a Venturi effect is formed locally in the tube, so that the oxygenation process in the water body can be quantitatively measured and optimized.

[0125] Reference Figure 6As shown, an embodiment of the present invention further provides an electronic device, which can be applied to the above method embodiment, and can include: a memory 1010 and a processor 1020. The memory 1010 is used to store program instructions; the processor 1020 is used to execute the program instructions to implement the method in the above embodiment.

[0126] The processor 1020 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0127] The memory 1010 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1010 may store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory 1010 and are called and executed by the processor 1020.

[0128] It should be noted that, although the above device only shows the processor 1020 and the memory 1010. However, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, it can be understood by those skilled in the art that the above device may also only include the components necessary for implementing the embodiments of this specification, and does not necessarily include all the components shown in the figure.

[0129] The electronic device of the above embodiment is used to implement the corresponding method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0130] An embodiment of the present invention further provides a non-transitory computer-readable storage medium, which stores computer instructions, and the computer instructions are used to enable a computer to execute the method described in any of the above embodiments.

[0131] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0132] The computer instructions stored in the storage medium of the above embodiments are used to enable the computer to execute the method described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0133] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A quantitative determination method for oxygenation using the Venturi effect, characterized in that: include: Obtaining the pressure difference between the inlet pressure of the second bundle of narrow tubes in the aeration tube and the pressure inside the second bundle of narrow tubes; Determining the volume flow rate of gas in the oxygenation tube based on the Venturi effect according to the pressure difference, the ratio of the diameter of the second narrow tube bundle to the diameter of the oxygenation tube, and the cross-sectional area of ​​the oxygenation tube; Calculating a theoretical gas increase amount according to the gas volume flow rate and the gas flow time; The theoretical oxygen increase amount is calculated according to the theoretical air increase amount and the oxygen content ratio of the air; Obtain the dissolved oxygen content of the liquid in the irrigation pipe before and after oxygenation, and calculate the actual oxygenation amount of the liquid; The theoretical oxygen increase amount is corrected according to the actual oxygen increase amount to obtain a correction function relationship between the actual oxygen increase amount and the theoretical oxygen increase amount.

2. The quantitative determination method of oxygenation using the Venturi effect according to claim 1, characterized in that: Also includes: Obtaining a first gas pressure value at an inlet of a second bundle of narrow tubes in the aeration tube; Obtaining the second gas pressure values ​​in the second narrow tubes of different sizes; Calculating the gas volume flow rate corresponding to the second bundle of narrow tubes of different sizes according to the first gas pressure value and the second gas pressure value; A first functional relationship between the size of the second bundle of narrow tubes and the theoretical oxygen increase amount is established according to the gas volume flow rate.

3. The quantitative determination method of oxygenation using the Venturi effect according to claim 2, characterized in that: Before obtaining the dissolved oxygen value of the liquid in the irrigation pipe before and after aeration, the following steps are also included: Obtaining a first liquid pressure value at an inlet of a first bundle of narrow tubes in the irrigation pipe; Obtaining pressure values ​​of the second liquid in the first bundle of narrow tubes of different sizes; The liquid volume flow rates corresponding to the first bundles of narrow tubes of different sizes are calculated according to the first liquid pressure value and the second liquid pressure value.

4. The quantitative determination method of oxygenation using the Venturi effect according to claim 3, characterized in that: The calculation of the actual oxygenation amount of the liquid comprises: Calculating the liquid flow volume according to the liquid volume flow rate and the liquid flow time; Calculating the actual oxygen increase amount according to the liquid dissolved oxygen amount and the liquid flow volume; A second functional relationship between the size of the first bundle of narrow tubes and the actual oxygen increase amount is established.

5. The quantitative determination method of oxygenation using the Venturi effect according to claim 4, characterized in that: According to the first functional relationship and the second functional relationship, a total functional relationship between the size of the second bundle of narrow tubes, the size of the first bundle of narrow tubes and the actual oxygen increase amount is established.

6. The quantitative determination method of oxygenation using the Venturi effect according to claim 1, characterized in that: The oxygenation tube can also be used for other liquids.

7. The quantitative determination method of oxygenation using the Venturi effect according to claim 1, characterized in that: The oxygen ratio in the air is calculated according to the theoretical gas increase amount and the oxygen content value of the liquid after gas increase.

8. A quantitative determination device for oxygenation using the Venturi effect, using the quantitative determination method for oxygenation according to any one of claims 1 to 7, characterized in that: The quantitative determination device comprises: An oxygenation pipe, wherein a second bundle of narrow tubes is arranged in the oxygenation pipe; the outer wall of the second bundle of narrow tubes abuts against a second threaded rod, and the second threaded rod is used to quantitatively change the size of the second bundle of narrow tubes; An irrigation pipe, wherein a first bundle of narrow tubes is arranged inside the irrigation pipe, and the outlet of the aeration pipe is connected to the tube wall of the first bundle of narrow tubes; the outer wall of the first bundle of narrow tubes abuts against a first threaded rod, and the first threaded rod is used to quantitatively change the size of the first bundle of narrow tubes; A pressure probe, disposed in the aeration pipe and the irrigation pipe, for detecting the fluid pressure in the pipe; The test probes are arranged at the inlet and outlet of the irrigation pipe and are used to detect the oxygen content of the liquid in the irrigation pipe.

9. An electronic device, characterized in that: include: A memory for storing program instructions; as well as A processor, configured to execute the program instructions to implement the method according to any one of claims 1 to 7. 10 . A non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause a computer to execute the method according to claim 1 .

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