Experimental device for researching influence on growth speed of algae

Abstract

The invention relates to the technical field of algae culture and testing, in particular to an experimental device for researching influence on the growth speed of algae, which comprises a constant-temperature water tank and further comprises an algae culture cavity detachably mounted in the constant-temperature water tank; the illumination system is arranged in the algae culture cavity; the exhaust hole is formed in the top of the algae culture cavity; the carbon dioxide aeration pipe is mounted in the algae culture cavity; the gas impact part is mounted at the top of the exhaust hole in a communicating manner and is used for generating impact force for driving the water body to fluctuate through exhaust when the gas is accumulated to a threshold value; through the arrangement of the air impact piece, a driving structure does not need to be additionally arranged in the device to drive the water body to flow, and extra energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the field of algae cultivation and testing, and in particular to an experimental device for studying factors affecting the growth rate of algae. Background Art

[0002] The hazards of algae mainly include destroying the aquatic ecosystem, affecting water quality, and endangering human health. When algae over-reproduce, algal blooms will form, causing the dissolved oxygen content in the water to decrease, affecting the survival of fish and other aquatic organisms, and even causing mass deaths. In addition, some algae, such as cyanobacteria, release toxins after their death, which pose a threat to human health.

[0003] There are many factors that affect the growth of algae. In practice, the factors affecting algae outbreaks are often comprehensive. Therefore, an experimental device is needed that can easily adjust multiple influencing factors when cultivating algae. By continuously measuring the algae density, the growth rate of algae under multiple influencing conditions can be studied, thereby evaluating the possibility of algae outbreaks under such conditions. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose an experimental device for studying the influence on the growth rate of algae.

[0005] In a first aspect, the present invention provides an experimental device for studying factors affecting the growth rate of algae, comprising a constant temperature water tank, and further comprising:

[0006] An algae culture chamber, which is detachably mounted inside the constant temperature water tank;

[0007] A lighting system is arranged inside the algae culture chamber;

[0008] An exhaust hole is provided at the top of the algae culture chamber;

[0009] A carbon dioxide aeration pipe is installed inside the algae culture chamber;

[0010] An air impact part is connected and installed on the top of the exhaust hole, and is used to generate an impact force to drive the water body to fluctuate by exhausting gas when the gas generated by photosynthesis accumulates to a threshold value;

[0011] The constant temperature water tank provides a constant temperature environment for the algae cultured in the algae culture chamber. The culture temperature of the algae can be controlled by adjusting the temperature of the constant temperature water tank, so as to test the effect of water temperature on the growth of algae. The lighting system can provide light for the growth of algae, so as to control the effect of light intensity, light cycle, spectrum combination, etc. on the growth of algae. The exhaust hole can discharge the gas generated by photosynthesis. The carbon dioxide aeration pipe can input carbon dioxide gas into the algae culture chamber to provide the necessary gas for the generation of algae.

[0012] When algae produce gas through photosynthesis, the produced gas enters the interior of the air impulse through the exhaust hole and gradually accumulates inside the air impulse. When the exhausted gas accumulates to the gas threshold that can be stored inside the air impulse, the accumulated gas exceeds the threshold and releases the exhaust gas instantly. The action of releasing the exhaust gas produces an impact force on the water body, thereby driving the water body to fluctuate. Through the setting of the air impulse, there is no need for an external driving structure inside the device to drive the flow of the water body. Instead, the flow of the water body is driven by the gas generated by the photosynthesis of the algae in the algae culture chamber itself, so that the flow of the water body is driven by its own photosynthesis, thereby reducing additional energy consumption.

[0013] Preferably, the gas punch comprises:

[0014] A curved pipe is fixed to the top of the exhaust hole after passing through the opening opened on the constant temperature water tank through an extension pipe fixed at the lowest end, and the curved pipe includes a bottom bend and a top bend;

[0015] A plugging liquid is placed in the bottom bend;

[0016] A pressure relief member is used to drive the water flow to generate fluctuations through the process of pressure release after the air pressure rises;

[0017] When the algae in the algae culture chamber produce gas through photosynthesis, the gas enters the interior of the curved tube through the exhaust hole. The gas entering the curved tube cannot be discharged due to the presence of the plugging liquid in the curved tube. As the gas accumulates, the air pressure in the algae culture chamber increases. Under the action of the increased air pressure, the gas pushes the plugging liquid in the curved tube to move until the plugging liquid is pushed to move out from the bottom bend, so that the gas that pushes the plugging liquid to move reaches the bottom of the plugging liquid, and then the gas can break through the plugging liquid to be discharged. Due to the high pressure generated by the gas accumulated in the algae culture chamber, when the gas breaks through the plugging liquid to be discharged, the pressure is released all at once, so that the air pressure in the algae culture chamber is restored, and the water body in the algae culture chamber is driven to fluctuate by the instantaneous recovery of the air pressure;

[0018] When the air pressure inside the algae culture chamber gradually increases, the air pressure inside the pressure relief piece increases. When the air pressure inside the algae culture chamber recovers instantly, the air pressure inside the pressure relief piece recovers synchronously. Since the pressure relief piece is placed inside the water body, the air pressure of the pressure relief piece recovers and has an impact on the water body, thereby driving the water body to fluctuate, thereby achieving fluctuations in the water body.

[0019] Preferably, the gas punch also includes:

[0020] The inner diameter of the curved tube decreases from the turning point near the bottom bend to become a U-shaped thin tube;

[0021] The funnel mouth is fixed to the top of the U-shaped capillary tube and is fixed to the top of the constant temperature water tank through a bracket;

[0022] The setting of the U-shaped capillary allows the inner diameter of the curved tube to decrease at the turning point of the bottom bend, so that when the gas pushes the plugging liquid through the U-shaped capillary, due to the small inner diameter of the U-shaped capillary, under the surface tension of the plugging liquid inside the U-shaped capillary, the gas can continue to push the plugging liquid upward when passing through the bottom bend until the plugging liquid is completely pushed into the inside of the funnel mouth. At the position of the funnel mouth, the inner diameter of the funnel mouth suddenly increases. At this time, the plugging effect of water on the gas disappears, and the gas can break through the plugging liquid and be discharged. Moreover, due to the sudden increase in the inner diameter of the funnel mouth, the gas can be discharged in large quantities in an instant, so that the air pressure inside the algae culture chamber is restored in a short time, thereby realizing the air pressure release in a short time, shortening the gas release process, and increasing the impact force when the air pressure is released, thereby increasing the impact force on the water flow;

[0023] The plugging liquid is stored at the bottom bend, and one end of the bottom bend is a curved tube with a larger inner diameter, and the other end is a U-shaped thin tube with a reduced inner diameter, so that a large amount of the plugging liquid is located inside the plugging liquid when stored, which helps to prevent the air pressure change inside the algae culture chamber from easily pushing the plugging liquid to the inside of the funnel mouth, so that gas release occurs when the air pressure inside the algae culture chamber does not change much.

[0024] Preferably, the gas punch also includes:

[0025] The middle side wall of the curved tube is an elastic side wall with a rebound effect;

[0026] The middle side wall of the curved tube is an elastic side wall. When the gas inside the algae culture chamber enters and accumulates inside the curved tube, the air pressure inside the curved tube increases. The increased air pressure causes the elastic side wall of the curved tube to expand outward. When the air pressure inside the curved tube is restored, due to the rebound effect of the elastic side wall of the curved tube, when the air pressure is instantly restored, the elastic side wall of the curved tube rebounds inward, thereby pushing the gas to break through the plugging liquid through the rebound force, thereby increasing the amount of gas discharged. After the gas is discharged, the elastic side wall of the curved tube is restored, so that the air pressure inside the curved tube is lower than the external air pressure, thereby pushing the plugging liquid to reset, so that the plugging liquid can return to the bottom bend inside the curved tube, and still maintain a large amount of plugging liquid at one end of the curved tube, which is conducive to avoiding the plugging liquid from being difficult to bend and reset after being pushed to the funnel mouth many times, resulting in a decrease in the pressure difference generated by the impact of the algae culture chamber and a gradual decrease in the impact on the water flow.

[0027] Preferably, the pressure release member comprises:

[0028] A gas spring is fixed on the side wall of the algae culture chamber, the bottom of the gas spring is connected to the algae culture chamber, and the top of the gas spring is located above the liquid level of the algae culture chamber;

[0029] When the internal air pressure of the algae culture chamber increases, the air pressure pushes the liquid surface, causing the water to flow toward the inside of the gas spring, so that the water flows into the inside of the gas spring to squeeze the air at the end of the gas spring, causing the space at the end of the gas spring to increase in air pressure after being squeezed, and then when the gas inside the algae culture chamber is discharged, the air pressure inside the algae culture chamber is instantly restored, so that the air pressure at the end of the gas spring instantly pushes the water flow entering the gas spring to be discharged, thereby driving the water body inside the algae culture chamber to flow in a spiral shape, so as to achieve the effect of driving the water flow;

[0030] The greater the air pressure at the end of the gas spring, the faster the water flow will be pushed when it is released instantly. Therefore, by controlling the air pressure difference inside the algae culture chamber, the fluctuation amplitude of the water flow can be controlled. That is, by controlling the increase in air pressure inside the algae culture chamber to push the plugging liquid to reach the threshold of the funnel mouth, the fluctuation amplitude of the water flow can be controlled and adjusted.

[0031] Preferably, the pressure release member further comprises:

[0032] The gas spring has pressure-release gas stored inside;

[0033] A special pressure-releasing gas is stored inside the gas spring, so that when the air pressure inside the algae culture chamber increases, water flows into the gas spring and pushes the pressure-releasing gas, causing the air pressure to increase after compression. As a result, the pressure-releasing gas can push the water flow out and cause water fluctuations when the air pressure inside the algae culture chamber is restored.

[0034] Preferably, the pressure-releasing gas is an inert gas that is insoluble in water;

[0035] If the gas inside the gas spring is ordinary air, which contains water-soluble gas, as the gas spring is gradually used, the water-soluble gas in the air gradually dissolves in water, which reduces the gas inside the gas spring. The reduced gas will affect the pushing effect of the gas on the water when it is released, thereby affecting the fluctuation effect on the water body.

[0036] By injecting an inert gas that is insoluble in water into the gas spring, on the one hand, the gas is insoluble in water, which can reduce the loss of gas during use; on the other hand, the inert gas is not easy to react, which is beneficial to reduce the loss caused by the reaction of the gas, thereby helping to keep the gas inside the gas spring stable, thereby maintaining the driving effect on the water flow when the gas is released.

[0037] Preferably, the pressure release member further comprises:

[0038] The connection point between the bottom of the gas spring and the algae culture chamber is set as a drain outlet;

[0039] The inner diameter of the drain port is smaller than the inner diameter of the gas spring. When the water flows through the drain port and enters the interior of the gas spring, the air pressure inside the algae culture chamber slowly increases with the photosynthesis of the algae, so that the water flows slowly from the drain port to the gas spring, and the setting of the drain port will not interfere with it.

[0040] When the air pressure inside the algae culture chamber is instantly restored, the gas inside the gas spring releases pressure and pushes the water to be discharged through the drain port. When the water flows along the gas spring to the drain port, the flow radius of the water flow suddenly decreases. Therefore, under the same driving force, the water flow speed when passing through the drain port increases, thereby increasing the speed of the water discharged from the gas spring. By increasing the speed of the discharged water flow, the fluctuation of the water body inside the algae culture chamber can be increased, thereby achieving a better effect of driving the flow of water.

[0041] Preferably, the inner diameter of the drain port is at least smaller than half of the inner diameter of the gas spring.

[0042] Preferably, the angle between the connecting section between the gas spring and the algae culture chamber and the algae culture chamber is 5 to 10°;

[0043] The gas spring is tilted downward and has an angle of 5 to 10 degrees with the algae culture chamber, so that when there is water flow inside the algae culture chamber, there is water flow at the bottom of the gas spring to block the gas inside the gas spring, which helps to avoid the gas inside the gas spring from leaking into the algae culture chamber from below after the water flow inside the algae culture chamber is reduced.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] The present invention adopts the arrangement of the gas impulse component so that no external driving structure is required inside the device to drive the water flow. Instead, the water flow is driven by the gas generated by the photosynthesis of the algae in the algae culture chamber itself, so that the flow of the water is driven by its own photosynthesis, thereby reducing additional energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0047] Figure 2 The structure of the thermostatic water tank of the present invention is shown in the cross section. Figure 1 .

[0048] Figure 3 For the present invention Figure 2Schematic diagram of the enlarged structure at point A in the middle.

[0049] Figure 4 The structure of the thermostatic water tank of the present invention is shown in the cross section. Figure 2 .

[0050] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0051] Figure 6 The structure of the thermostatic water tank of the present invention is shown in the cross section. Figure 3 .

[0052] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at point C in the middle.

[0053] In the figure: 1. Constant temperature water tank; 2. Algae culture chamber; 3. Lighting tube; 4. Exhaust hole; 401. Extension tube; 401. Through port; 5. Carbon dioxide aeration tube; 6. Curved tube; 601. Sealing liquid; 7. U-shaped capillary; 8. Funnel mouth; 801. Bracket; 9. Gas spring; 10. Drain port. DETAILED DESCRIPTION

[0054] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0055] like Figures 1 to 7 An experimental device for studying the influence of algae growth rate shown includes a constant temperature water tank 1, and also includes:

[0056] The algae culture chamber 2 is detachably mounted inside the constant temperature water tank 1;

[0057] A lighting system is arranged inside the algae culture chamber 2;

[0058] An exhaust hole 4 is provided at the top of the algae culture chamber 2;

[0059] A carbon dioxide aeration pipe 5 is installed inside the algae culture chamber 2;

[0060] The gas impact part is connected and installed on the top of the exhaust hole 4, and is used to generate an impact force to drive the water body to fluctuate by exhausting gas when the gas generated by photosynthesis accumulates to a threshold value;

[0061] There are many factors that affect algae growth. In practice, the factors affecting algae outbreaks are often comprehensive. Therefore, an experimental device is needed that can conveniently adjust multiple influencing factors when cultivating algae, and continuously measure the algae density to study the growth rate of algae under multiple influencing conditions, so as to evaluate the possibility of algae outbreaks under such conditions.

[0062] Factors that affect the growth rate of algae include the effect of water fluidity on it. When studying the effect of water fluidity, the existing technology usually uses an external force to drive the water to flow. However, by applying an external force to drive the water to flow, the water flow driven by the external force is mechanized, which requires additional energy consumption and may cause mechanical failures.

[0063] This embodiment of the present invention can solve the above problems. The specific implementation method is as follows: the constant temperature water tank 1 provides a constant temperature environment for the algae cultured in the algae culture chamber 2. The culture temperature of the algae can be controlled by adjusting the temperature of the constant temperature water tank 1, so as to control the influence of the water temperature on the growth of the algae by controlling the water temperature test. The lighting system can provide light for the growth of the algae, so as to control the influence of the light intensity, light cycle, spectrum combination, etc. on the growth of the algae. The exhaust hole 4 can discharge the gas generated by the photosynthesis of the algae. The carbon dioxide aeration pipe 5 can input carbon dioxide gas into the algae culture chamber 2 to provide the required gas for the generation of the algae.

[0064] As an optional embodiment, the algae culture chamber 2 is tilted inside the constant temperature water tank 1, so that the gas generated inside the algae culture chamber 2 flows toward the tilted top, which is conducive to the gas flowing to the position of the exhaust hole 4, thereby facilitating exhaust;

[0065] As an optional embodiment, the lighting system includes a plurality of lighting tubes 3, all of which are installed on the top of the algae culture chamber 2;

[0066] When the algae produce gas through photosynthesis, the produced gas enters the interior of the air impulse through the exhaust hole 4 and gradually accumulates inside the air impulse. When the exhausted gas accumulates to the gas threshold that can be stored inside the air impulse, the accumulated gas exceeds the threshold and releases the exhaust gas instantly. The action of releasing the exhaust gas generates an impact force on the water body, thereby driving the water body to fluctuate. Through the setting of the air impulse, there is no need for an external driving structure inside the device to drive the flow of the water body. Instead, the flow of the water body is driven by the gas produced by the photosynthesis of the algae in the algae culture chamber 2 itself, so that the flow of the water body is driven by its own photosynthesis, thereby reducing additional energy consumption.

[0067] As an optional embodiment, multiple constant temperature water tanks 1 and internal structures can be provided, so that the algae culture chambers 2 inside the multiple constant temperature water tanks 1 can culture multiple groups of algae at the same time. By setting up multiple experimental groups, different factors affecting the growth rate of algae can be controlled inside each experimental group. By controlling the variables, it is helpful to conduct adjustment experiments on the degree of influence of different factors affecting the growth of algae, which is conducive to obtaining the optimal environment and the most unfavorable environment for algae growth.

[0068] As an optional embodiment, the air punch comprises:

[0069] The curved tube 6 is fixed to the top of the exhaust hole 4 after passing through the opening 402 opened on the constant temperature water tank 1 through the extension tube 401 fixed at the lowest end, and the curved tube 6 includes a bottom bend and a top bend;

[0070] The plugging fluid 601 is placed in the bottom bend;

[0071] A pressure relief member is used to drive the water flow to generate fluctuations through the process of pressure release after the air pressure rises;

[0072] When the algae in the algae culture chamber 2 produce gas through photosynthesis, the gas enters the curved tube 6 through the exhaust hole 4. The gas entering the curved tube 6 cannot be discharged due to the presence of the plugging liquid 601 in the curved tube 6. As the gas accumulates, the air pressure in the algae culture chamber 2 increases. Under the action of the increased air pressure, the gas pushes the plugging liquid 601 in the curved tube 6 to move until the plugging liquid 601 is pushed to move out from the bottom bend, so that the gas that pushes the plugging liquid 601 to move reaches the bottom of the plugging liquid 601, and then the gas can break through the plugging liquid 601 to be discharged. Due to the high pressure generated by the gas accumulated in the algae culture chamber 2, when the gas breaks through the plugging liquid 601 to be discharged, the pressure is released once, so that the air pressure in the algae culture chamber 2 is restored, and the water body in the algae culture chamber 2 is driven to fluctuate by the instantaneous recovery of the air pressure.

[0073] When the air pressure inside the algae culture chamber 2 gradually increases, the air pressure inside the pressure relief piece increases. When the air pressure inside the algae culture chamber 2 recovers instantly, the air pressure inside the pressure relief piece recovers synchronously. Since the pressure relief piece is placed inside the water body, the air pressure of the pressure relief piece recovers and has an impact on the water body, thereby driving the water body to fluctuate and realizing the fluctuation of the water body.

[0074] As an optional embodiment, the air punch also includes:

[0075] The inner diameter of the curved tube 6 decreases from the turning point near the bottom bend to become a U-shaped thin tube 7;

[0076] The funnel mouth 8 is fixed to the top of the U-shaped capillary 7 and is fixed to the top of the thermostatic water tank 1 through a bracket 801;

[0077] When the curved tube 6 is a common pipe, the accumulated gas breaks through the plugging liquid 601 and overflows when pushing the plugging liquid 601 inside the curved tube 6 to move out of the bottom bend. At this time, the overflow of the gas is delayed, that is, on the one hand, the gas can break through the plugging liquid 601 and be discharged when the plugging liquid 601 moves out of the bottom bend. On the other hand, due to the limited inner diameter of the curved tube 6, the gas cannot achieve an instantaneous effect when breaking through the plugging liquid 601 and being discharged, thereby slowing down the release of the air pressure inside the algae culture chamber 2. The slow release of the air pressure will cause the impact force in the process of air pressure release to be dispersed to a longer period of time, thereby weakening the impact force when the air pressure is released, and reducing the impact force on the water flow;

[0078] This embodiment of the present invention can solve the above problems. The specific implementation method is as follows: the U-shaped capillary 7 is arranged so that the inner diameter of the curved tube 6 is reduced at the turning point of the bottom bend, so that when the gas pushes the plugging liquid 601 through the U-shaped capillary 7, due to the small inner diameter of the U-shaped capillary 7, under the surface tension of the plugging liquid 601 inside the U-shaped capillary 7, the gas can continue to push the plugging liquid 601 to move upward when passing through the bottom bend, until the plugging liquid 601 is pushed into the inside of the funnel mouth 8. At the position of the funnel mouth 8, the inner diameter of the funnel mouth 8 suddenly increases. At this time, the plugging effect of water on the gas disappears, and the gas can break through the plugging liquid 601 and be discharged. Moreover, due to the sudden increase in the inner diameter of the funnel mouth 8, the gas can be discharged in large quantities in an instant, so that the air pressure inside the algae culture chamber 2 is restored in a short time, thereby realizing the air pressure release in a short time, shortening the gas release process, and increasing the impact force when the air pressure is released, thereby increasing the impact force on the water flow;

[0079] The plugging liquid 601 is stored at the bottom bend, and one end of the bottom bend is a curved tube 6 with a larger inner diameter, and the other end is a U-shaped capillary 7 with a reduced inner diameter, so that a large amount of the plugging liquid 601 is located inside the plugging liquid 601 when stored, which helps to prevent the air pressure change inside the algae culture chamber 2 from easily pushing the plugging liquid 601 to the inside of the funnel mouth 8, so that gas release occurs when the air pressure change inside the algae culture chamber 2 is not large.

[0080] As an optional embodiment, the air punch also includes:

[0081] The middle side wall of the curved tube 6 is an elastic side wall with a rebound effect;

[0082] The middle side wall of the curved tube 6 is an elastic side wall. When the gas inside the algae culture chamber 2 enters and accumulates inside the curved tube 6, the air pressure inside the curved tube 6 increases. The increased air pressure causes the elastic side wall of the curved tube 6 to expand outward. When the air pressure inside the curved tube 6 is restored, due to the rebound effect of the elastic side wall of the curved tube 6, when the air pressure is instantly restored, the elastic side wall of the curved tube 6 rebounds inward, thereby pushing the gas to break through the plugging liquid 601 through the rebound force, thereby increasing the amount of gas discharged, so that when the gas is discharged Afterwards, the elastic side wall of the curved tube 6 recovers, so that the air pressure inside the curved tube 6 is lower than the external air pressure, thereby pushing the blocking liquid 601 to reset, so that the blocking liquid 601 can return to the bottom bend inside the curved tube 6 and still maintain a large amount of blocking liquid 601 at one end of the curved tube 6, which helps to avoid the blocking liquid 601 being difficult to bend and reset after being pushed to the funnel mouth 8 many times, resulting in a decrease in the air pressure difference that impacts the algae culture chamber 2 and a gradual decrease in the impact on the water flow.

[0083] As an optional embodiment, the pressure relief member includes:

[0084] The gas spring 9 is fixed on the side wall of the algae culture chamber 2, the bottom of the gas spring 9 is connected with the algae culture chamber 2, and the top of the gas spring 9 is located above the liquid level of the algae culture chamber 2;

[0085] When the internal air pressure of the algae culture chamber 2 increases, the action of the air pressure pushes the liquid surface, causing the water to flow toward the inside of the gas spring 9, so that the water flows into the inside of the gas spring 9 to squeeze the air at the end of the gas spring 9, so that the air pressure in the space at the end of the gas spring 9 increases after being squeezed, and then when the gas inside the algae culture chamber 2 is discharged, the air pressure inside the algae culture chamber 2 is instantly restored, so that the air pressure at the end of the gas spring 9 instantly pushes the water flow entering the gas spring 9 to be discharged, thereby driving the water body inside the algae culture chamber 2 to flow in a spiral shape, so as to achieve the effect of driving the water flow;

[0086] The greater the air pressure at the end of the gas spring 9, the faster the water flow will be pushed when it is released instantly. Therefore, by controlling the air pressure difference inside the algae culture chamber 2, the fluctuation amplitude of the water flow can be controlled. That is, by controlling the increase in air pressure inside the algae culture chamber 2 to push the blocking liquid 601 to reach the threshold of the funnel mouth 8, the fluctuation amplitude of the water flow can be controlled and adjusted.

[0087] As an optional embodiment, the pressure release member further includes:

[0088] The gas spring 9 stores decompressed gas inside;

[0089] The gas spring 9 stores a special pressure-releasing gas inside, so that when the air pressure inside the algae culture chamber 2 increases, water flows into the gas spring 9 and pushes the pressure-releasing gas, causing the air pressure to increase after compression, so that the pressure-releasing gas can push the water flow out and cause the water body to fluctuate when the air pressure inside the algae culture chamber 2 is restored.

[0090] As an optional embodiment, the pressure-releasing gas is an inert gas that is insoluble in water;

[0091] If the gas inside the gas spring 9 is ordinary air, ordinary air contains gas that can be dissolved in water. As the gas spring 9 is gradually used, the gas that can be dissolved in water in the air gradually dissolves in water, causing the gas inside the gas spring 9 to decrease. The reduced gas will affect the pushing effect of the gas on the water when it is released, thereby affecting the wave effect on the water body.

[0092] By injecting an inert gas that is insoluble in water into the gas spring 9, on the one hand, the gas is insoluble in water, which can reduce the loss of gas during use; on the other hand, the inert gas is not easy to react, which is beneficial to reduce the loss caused by the reaction of the gas, thereby helping to keep the gas inside the gas spring 9 stable, thereby maintaining the driving effect on the water flow when the gas is released.

[0093] As an optional embodiment, the pressure release member further includes:

[0094] The connection point between the bottom of the gas spring 9 and the algae culture chamber 2 is set as a drain port 10;

[0095] The inner diameter of the drain port 10 is smaller than the inner diameter of the gas spring 9. When the water flows through the drain port 10 and enters the interior of the gas spring 9, the air pressure inside the algae culture chamber 2 increases slowly with the photosynthesis of the algae, so that the water flows slowly from the drain port 10 to the gas spring 9, and the setting of the drain port 10 will not interfere with it.

[0096] When the air pressure inside the algae culture chamber 2 is instantly restored, the gas inside the gas spring 9 releases pressure to push the water to be discharged through the drain port 10. When the water flows along the gas spring 9 to the drain port 10, the flow radius of the water flow suddenly decreases. Therefore, under the same driving force, the water flow speed increases when passing through the drain port 10, thereby increasing the water flow speed discharged from the gas spring 9. By increasing the speed of the discharged water flow, the fluctuation of the water body inside the algae culture chamber 2 can be increased, thereby achieving a better effect of driving the flow of water.

[0097] As an optional embodiment, the inner diameter of the drain port 10 is at least smaller than half of the inner diameter of the gas spring 9 .

[0098] As an optional embodiment, the angle between the connecting section of the gas spring 9 and the algae culture chamber 2 and the algae culture chamber 2 is 5 to 10°;

[0099] The gas spring 9 is tilted downward and has an angle of 5 to 10 degrees with the algae culture chamber 2, so that when there is water flow inside the algae culture chamber 2, there is water flow at the bottom of the gas spring 9 to block the gas inside the gas spring 9, which helps to avoid the gas inside the gas spring 9 from leaking into the algae culture chamber 2 from below after the water flow inside the algae culture chamber 2 is reduced.

[0100] Working principle of the present invention: the constant temperature water tank 1 provides a constant temperature environment for the algae cultured in the algae culture chamber 2. The culture temperature of the algae can be controlled by adjusting the temperature of the constant temperature water tank 1, so as to test the influence of water temperature on the growth of algae by controlling the water temperature. The lighting system can provide light for the growth of algae, so as to control the influence of light intensity, light cycle, spectrum combination, etc. on the growth of algae. The exhaust hole 4 can discharge the gas generated by the photosynthesis of the algae. The carbon dioxide aeration pipe 5 can input carbon dioxide gas into the algae culture chamber 2 to provide the required gas for the generation of algae.

[0101] When the algae produce gas through photosynthesis, the produced gas enters the interior of the air impulse through the exhaust hole 4 and gradually accumulates inside the air impulse. When the exhausted gas accumulates to the gas threshold that can be stored inside the air impulse, the accumulated gas exceeds the threshold and releases the exhaust gas instantly. The action of releasing the exhaust gas generates an impact force on the water body, thereby driving the water body to fluctuate. Through the setting of the air impulse, there is no need for an external driving structure inside the device to drive the flow of the water body. Instead, the flow of the water body is driven by the gas produced by the photosynthesis of the algae in the algae culture chamber 2 itself, so that the flow of the water body is driven by its own photosynthesis, thereby reducing additional energy consumption.

[0102] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. An experimental device for studying the influence of algae growth rate, comprising a constant temperature water tank (1), characterized in that: Also includes: An algae culture chamber (2) is detachably mounted inside the constant temperature water tank (1); A lighting system, arranged inside the algae culture chamber (2); An exhaust hole (4) is provided at the top of the algae culture chamber (2); A carbon dioxide aeration pipe (5) is installed inside the algae culture chamber (2); The gas impact piece is connected and installed on the top of the exhaust hole (4) and is used for instantaneous exhaust when the photosynthetic gas accumulates to a threshold value to generate an impact force that drives the water body to fluctuate.

2. The experimental device for studying the influence on the growth rate of algae according to claim 1, characterized in that: The gas punch comprises: The curved tube (6) is fixed to the top of the exhaust hole (4) after passing through the opening (402) opened on the constant temperature water tank (1) through the extension tube (401) fixed at the lowest end, and the curved tube (6) includes a bottom bend and a top bend; A plugging liquid (601) is placed in the bottom bend; The pressure relief piece is used to drive the water flow to produce fluctuations through the process of releasing pressure after the air pressure rises.

3. The experimental device for studying the influence on the growth rate of algae according to claim 2, characterized in that: The gas punch also includes: The inner diameter of the curved tube (6) decreases from the turning point near the bottom bend to become a U-shaped thin tube (7); The funnel mouth (8) is fixed to the top of the U-shaped capillary (7) and is fixed to the top of the constant temperature water tank (1) via a bracket (801).

4. The experimental device for studying the influence on the growth rate of algae according to claim 3, characterized in that: The gas punch also includes: The middle side wall of the curved tube (6) is an elastic side wall with a rebound effect.

5. The experimental device for studying the influence on the growth rate of algae according to claim 2, characterized in that: The pressure relief member comprises: The gas spring (9) is fixed on the side wall of the algae culture chamber (2), and the bottom is connected to the algae culture chamber (2). The top of the gas spring (9) is located above the liquid level of the algae culture chamber (2).

6. The experimental device for studying the influence on the growth rate of algae according to claim 5, characterized in that: The pressure release member further comprises: The gas spring (9) stores decompressed gas inside.

7. The experimental device for studying the influence on the growth rate of algae according to claim 6, characterized in that: The pressure-releasing gas is an inert gas that is insoluble in water.

8. The experimental device for studying the influence on the growth rate of algae according to claim 6, characterized in that: The pressure release member also includes: The connection point between the bottom of the gas spring (9) and the algae culture chamber (2) is arranged as a drainage outlet (10).

9. The experimental device for studying the influence on the growth rate of algae according to claim 8, characterized in that: The inner diameter of the water drain port (10) is at least smaller than half the inner diameter of the gas spring (9).

10. The experimental device for studying the influence on the growth rate of algae according to claim 5, characterized in that: It also includes that the angle between the connecting section between the gas spring (9) and the algae culture chamber (2) and the algae culture chamber (2) is 5 to 10 degrees.

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