CN220496235U

CN220496235U - Flow control mechanism and gas mixing device

Info

Publication number: CN220496235U
Application number: CN202321868216.0U
Authority: CN
Inventors: 罗文涛; 季家弘; 杨婷; 陈艳
Original assignee: Guizhou Zhongming Biotechnology Co ltd
Current assignee: Guizhou Zhongming Biotechnology Co ltd
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-02-20
Anticipated expiration: 2033-07-17

Abstract

The utility model relates to the technical field of microalgae culture gas control and provides a flow control mechanism and a gas mixing device, which comprise a pipe body assembly, an opening control assembly and a non-return assembly, wherein the opening control assembly comprises a rotating plate arranged in the pipe body assembly, a baffle plate in sliding connection with the rotating plate, a driving piece arranged on one side of the rotating plate and an opening ruler arranged on the outer side surface of the pipe body assembly; the non-return subassembly, include with the sealing membrane of body subassembly inside wall contact and setting are in regulating part on the body subassembly, control the gas through the cross-sectional area of gas passage between the driving part adjustment separation blade and let in the proportion to reduce the influence that non-return subassembly produced gas flow state through regulating part, monitor the environmental condition that little algae was cultivated in real time through central controller, finely tune the gas mixing proportion, make environmental condition more suitable little algae growth.

Description

Flow control mechanism and gas mixing device

Technical Field

The utility model relates to the technical field of microalgae culture gas control, in particular to a flow control mechanism and a gas mixing device.

Background

Microalgae are one of the oldest species on earth, and their birth can be traced back to 35 hundred million years ago. Microalgae are very abundant in variety and various in morphology. Microalgae generally contain chloroplasts, so photosynthesis can be performed, and researches show that the microalgae fix CO ₂ Is 10 times more powerful than terrestrial plants. Microalgae have wide application in renewable energy sources, biological medicine, food industry, environmental monitoring and other aspects by virtue of rich metabolites and unique physiological characteristics. Carbon dioxide gas provides a carbon source required by microalgae propagation, and when the content of the culture solution is too high, the culture solution is acidified by the carbon dioxide gas, so that algae cells can be killed; when the content of the carbon dioxide in the culture solution is too low, carbon sources required by the growth of algae are insufficient, and the propagation of algae is affected.

In the prior art, the mixing of carbon dioxide gas and air comprises two modes of manual regulation and semi-automatic regulation, and for the manual regulation mode, the gas is measured gas flow through a flowmeter after passing through a valve, and the valve is manually regulated to control the flow of the mixed gas, so that the regulation is complicated, the gas mixing is unstable, and the error is large. For the semi-automatic regulation mode, the gas valve is controlled, the gas flow is measured by the flow measuring device, but only the time for opening and closing the valve is used for controlling the quantity of the mixed gas, only quantitative gas delivery can be achieved, the mixing proportion of carbon dioxide gas and air can not be controlled, closed loop control is not adopted, and the mixing precision is low. At the same time, different pH values can also have different effects on the growth of microalgae, while CO ₂ Is also dissolved in waterThe PH value in the water is changed to a certain extent, so that the gas proportion needs to be adjusted in time along with the environmental state.

When the existing gas mixing device is used, gas enters a two-stage or multi-stage pressure balancing device through a one-way valve to balance the input pressure difference, then the flow control valve is adjusted to adjust the flow of various gases according to the expected gas mixing ratio, however, the valve core is difficult to fully balance due to the complex flow characteristic of the fluid.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.

In view of the fact that the existing gas mixing device is inconvenient to adjust the gas proportion in time when in use, the utility model aims to provide a flow control mechanism, so that the stabilized gas can be input in equal flow proportion, and the gas proportion can be adjusted flexibly.

In order to solve the technical problems, the utility model provides the following technical scheme: a flow control mechanism comprising a tube assembly; the opening control assembly comprises a rotating plate arranged in the pipe body assembly, a baffle plate in sliding connection with the rotating plate, a driving piece arranged on one side of the rotating plate and an opening ruler arranged on the outer side surface of the pipe body assembly; the non-return assembly comprises a sealing film contacted with the inner side wall of the pipe body assembly and an adjusting piece arranged on the pipe body assembly.

As a preferred embodiment of the flow control mechanism of the present utility model, wherein: the pipe body assembly is provided with a mounting cavity, a first sliding groove, a second sliding groove and a positioning hole, the mounting cavity is formed in one side of the pipe body assembly, the first sliding groove is formed in the side wall of the mounting cavity, the second sliding groove is formed in the side wall, close to the opening degree ruler, of the pipe body assembly, and the positioning hole is formed in one side, close to the adjusting piece, of the pipe body assembly.

As a preferred embodiment of the flow control mechanism of the present utility model, wherein: the surface of the rotating plate is provided with a third sliding groove and the peripheral side surface of the airflow through hole is provided with teeth.

As a preferred embodiment of the flow control mechanism of the present utility model, wherein: the driving piece comprises a worm, a worm wheel and a gear, wherein the worm is meshed with the worm wheel, the gear is fixedly connected with the worm wheel, and the gear is meshed with teeth of the rotating plate.

As a preferred embodiment of the flow control mechanism of the present utility model, wherein: the opening ruler is characterized in that a rack is arranged on one side of the opening ruler, the rack is arranged in the second sliding groove in a sliding mode and meshed with the gear, a pointer is arranged on the rack, and the pointer is in sliding contact with the opening ruler.

As a preferred embodiment of the flow control mechanism of the present utility model, wherein: one side of the sealing film, which is contacted with the inner wall of the pipe body component, is provided with a sealing ring, the other side of the sealing film is provided with a first spring and a guide rod, one end of the first spring is connected with the sealing film, and the other end of the first spring is connected with the adjusting piece.

As a preferred embodiment of the flow control mechanism of the present utility model, wherein: the adjusting piece comprises an adjusting tube, a locking bolt and a second spring, wherein the locking bolt penetrates through the positioning hole.

As a preferred embodiment of the flow control mechanism of the present utility model, wherein: the baffle is close to one side of the rotating plate and is provided with a first sliding block, the other side of the baffle is provided with a second sliding block, the first sliding block is arranged inside the third sliding groove in a sliding mode, and the second sliding block is arranged inside the first sliding groove in a sliding mode.

The utility model has the beneficial effects that: when the gas mixing device is used, the pressure of the gas to be mixed is regulated to be equal, the input pressure difference is balanced, then the gas is introduced into the pipe body, the opening and closing of the inner diameter of the pipe are flexibly controlled through the opening control assembly, the influence on the flowing state of the fluid in the middle part of the pipe is small because the opening is arranged at the central part of the pipe, the gas mixing proportion is regulated at any time according to the opening proportion of the gas channel formed in the middle part of the baffle plate, and the gas mixing proportion is convenient to be regulated at any time.

In view of the above-mentioned flow control mechanism, in the course of operation, can not be adjusted automatically according to the environment state of the microalgae, and still need to mix the gas fully.

In order to solve the technical problems, the utility model also provides the following technical scheme: a gas mixing device comprising a flow control mechanism as described above; the mixing assembly comprises a mixing box connected with the output end of the pipe body assembly; the control assembly comprises a central controller, a pH value sensor and a temperature sensor, wherein the pH value sensor is electrically connected with the central controller, and the central controller is electrically connected with the opening control assembly.

As a preferred embodiment of the gas mixing device according to the utility model, wherein: the inside baffle and the runner of being provided with of mixing box, the baffle is crisscross to be set up.

The utility model has another beneficial effect: through passing through the body subassembly with the gas that needs to mix and lets in the mixing box, carry out preliminary mixing through the runner, later through the interior baffle region of mixing box, make gas form the turbulent flow when passing through the baffle, different regional gases have the differential speed and pressure for the final misce bene of mutual extrusion attraction between different gases.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic view of the overall structure of the flow control mechanism of the present utility model.

FIG. 2 is a schematic cross-sectional view of a flow control mechanism according to the present utility model.

FIG. 3 is a schematic view of the flow control mechanism of the present utility model at section A.

Fig. 4 is a schematic structural view of an opening adjusting assembly of a flow control mechanism according to the present utility model.

FIG. 5 is a schematic view showing the overall structure of the gas mixing device of the present utility model.

FIG. 6 is a diagram of a control system of a gas mixing apparatus according to the present utility model.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Further, in describing the embodiments of the present utility model in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

Example 1

Referring to fig. 1 to 3, for the first embodiment of the present utility model, there is provided a flow control mechanism for controlling the ratio of gas flowing through by controlling the size of the cross-sectional area of the gas passage formed between the baffle plates 202, and rotating the rotating plate 201 by the driving member 203, thereby deflecting the baffle plates 202, and the cross-sectional area of the gas passage is varied.

Specifically, the tube assembly 100; the opening control assembly 200 comprises a rotating plate 201 arranged in the pipe body assembly 100, a baffle plate 202 in sliding connection with the rotating plate 201, a driving piece 203 arranged on one side of the rotating plate 201 and an opening ruler 204 arranged on the outer side surface of the pipe body assembly 100; the non-return assembly 300 includes a sealing membrane 301 in contact with the inner sidewall of the tube assembly 100 and an adjustment member 302 disposed on the tube assembly 100.

The pipe body assembly 100 is provided with a mounting cavity 101, a first sliding groove 102, a second sliding groove 103 and a positioning hole 104, the mounting cavity 101 is formed in one side of the pipe body assembly 100, the first sliding groove 102 is formed in the side wall of the mounting cavity 101, the second sliding groove 103 is formed in the side wall, close to the opening degree ruler 204, of the pipe body assembly 100, and the positioning hole 104 is formed in one side, close to the adjusting piece 302, of the pipe body assembly 100.

Further, the rotating plate 201 is provided with a third sliding groove 201a on the surface and teeth 201c on the peripheral side surface of the ventilation hole 201 b.

Preferably, the driving member 203 includes a worm 203a, a worm wheel 203b, and a gear 203c, wherein the worm 203a is engaged with the worm wheel 203b, the gear 203c is fixedly connected with the worm wheel 203b, and the gear 203c is engaged with the teeth 201c of the rotating plate 201.

Preferably, a rack 204a is arranged on one side of the opening ruler 204, the rack 204a is slidably arranged in the second chute 103 and is meshed with the gear 203c, a pointer 204b is arranged on the rack 204a, and the pointer 204b is in sliding contact with the opening ruler 204.

Still further, a first sliding block 202a is disposed on one side of the baffle plate 202 adjacent to the rotating plate 201, a second sliding block 202b is disposed on the other side of the baffle plate, the first sliding block 202a is slidably disposed in the third sliding groove 201a, and the second sliding block 202b is slidably disposed in the first sliding groove 102.

In summary, when the opening degree control assembly 200 is adjusted according to the required gas proportion, the worm 203a of the rotation driving member 203 drives the worm wheel 203b to rotate, the gear 203c is fixed with the worm wheel 203b and rotates synchronously with the worm wheel 203b, the gear 203c is meshed with the teeth 201c of the rotating plate 201 to drive the rotating plate 201 to rotate, the second sliding block 202b slides in the first sliding block 102 under the limit of the first sliding block 102, meanwhile, the third sliding block 201a deflects along with the rotating plate 201, and is limited by the cooperation of the third sliding block 201a and the first sliding block 202a, the baffle 202 deflects, an airflow channel is formed in the middle, and the area of the airflow channel controls the flow. Since the gear 203c rotates and the rack 204a is engaged with the gear 203c, it slides in the second chute 103, and the pointer 204b slides on the surface of the opening scale 204 to indicate the corresponding opening indication.

The ratio of the required mixing of each gas is determined, then the opening control assembly 200 is adjusted according to the ratio, so that the ratio of the gas flow channel area between the baffle plates 202 is equal to the gas mixing ratio, meanwhile, the input valve of each gas is opened and closed, the gas is limited by the gas flow channel area, because the fluid flow characteristics are complex, the influence of the gas flow impinging on the baffle plates 202 to form turbulent flow can be reduced as far as possible when the gas channel is positioned in the middle of the pipe body, the difference between the gas flow channel area ratio and the introducing volume ratio is reduced, the gas flow channel area ratio is approximately equal to the introducing volume ratio, and the ratio of the gas mixing can be controlled by the gas formula pv=nrt (P refers to the gas pressure, V refers to the gas volume, n refers to the number of molecules, R refers to the constant, and T refers to the absolute temperature).

Example 2

Referring to fig. 5, a second embodiment of the present utility model is shown, which is different from the first embodiment in that: when the gas passes through the check valve at different pressures, the valve body affects the gas flow, and the pressure of the valve body is regulated by the regulating piece 302, so that the gas flow regulator adapts to the gas at different pressures, and the influence of the valve body on the gas is reduced as much as possible.

Specifically, a sealing ring 301a is disposed on one side of the sealing film 301 contacting the inner wall of the pipe body assembly, a first spring 301b and a guiding rod 301c are disposed on the other side of the sealing film 301, one end of the first spring 301b is connected with the sealing film 301, and the other end is connected with the adjusting member 302.

Further, the adjustment member 302 includes an adjustment tube 302a, a locking bolt 302b, and a second spring 302c, the locking bolt 302b passing through the positioning hole 104.

The rest of the structure is the same as in embodiment 1.

In summary, when the gas pressure is smaller, the locking bolt 302b is pulled outwards, so that the locking bolt 302b is separated from the adjusting tube 302a, and meanwhile, the adjusting tube 302a is pulled to one side, so that the shrinkage of the first spring 301b is reduced, the gas pressure required for pushing the sealing film 301 is reduced, thereby avoiding the greater obstruction of the valve body to the gas flow, causing the imbalance of the gas pressure, further reducing the influence on the gas inlet volume ratio, and further reducing the influence on the gas mixing ratio.

Example 3

Referring to fig. 6, for the third embodiment of the present utility model, this embodiment is different from the first two embodiments in that: there is provided a gas mixing apparatus for sufficiently mixing gas through a flow passage 401b and a partition 401a, and for monitoring the state of the microalgae environment through a central controller 501 to adjust the mixing ratio of the gas.

Specifically, the mixing assembly 400 includes a mixing tank 401 connected to the output end of the tube assembly 100; the control assembly 500 comprises a central controller 501, a PH value sensor 502 and a temperature sensor 503, wherein the PH value sensor 502 is electrically connected with the central controller 501, and the central controller 501 is electrically connected with the opening control assembly 200.

Wherein, the mixing box 401 is internally provided with a baffle 401a and a flow channel 401b, and the baffles 401a are staggered.

Setting pH value regulating strategy, and controlling pH value of algae liquid to be not lower than balance during scale culture, wherein CO in algae liquid ₂ Will not go into the gas phase (CO) ₂ ) The mixed gas release, "equilibrium PH" is defined as: the relationship between the equilibrium pH and the concentration of the carbon source can be determined by the regression equation y= 0.3504ln (x) +8.9647 (R) ² = 0.9708).

To sum up, the gas to be mixed is introduced into the mixing box 401 through the pipe body assembly 100, preliminary mixing is performed through the flow channel 401b, turbulence is formed when the gas passes through the partition plate 401a, different areas of gas form speed difference and pressure difference, further different areas of gas are mutually extruded and attracted, final mixing is uniformly performed, the central controller 501 monitors the corresponding culture temperature and pH value in real time, the pH value sensor 502 and the temperature sensor 503 upload signals to the central controller 501, and the central controller 501 controls the opening control assembly 200 to perform fine adjustment of the gas mixing proportion.

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims

1. A flow control mechanism, characterized by: comprising the steps of (a) a step of,

a tube assembly (100);

the opening control assembly (200) comprises a rotating plate (201) arranged in the pipe body assembly (100), a baffle (202) in sliding connection with the rotating plate (201), a driving piece (203) arranged on one side of the rotating plate (201) and an opening ruler (204) arranged on the outer side surface of the pipe body assembly (100);

the non-return assembly (300) comprises a sealing film (301) contacted with the inner side wall of the pipe body assembly (100) and an adjusting piece (302) arranged on the pipe body assembly (100).

2. The flow control mechanism of claim 1, wherein: the pipe body assembly (100) is provided with a mounting cavity (101), a first sliding groove (102), a second sliding groove (103) and a positioning hole (104), the mounting cavity (101) is formed in one side of the pipe body assembly (100), the first sliding groove (102) is formed in the side wall of the mounting cavity (101), the second sliding groove (103) is formed in the side wall, close to the opening ruler (204), of the pipe body assembly (100), and the positioning hole (104) is formed in one side, close to the adjusting piece (302), of the pipe body assembly (100).

3. The flow control mechanism of claim 2, wherein: the surface of the rotating plate (201) is provided with a third sliding groove (201 a) and an air flow hole (201 b), and the peripheral side surface of the rotating plate is provided with teeth (201 c).

4. A flow control mechanism as claimed in claim 3, wherein: the driving piece (203) comprises a worm (203 a), a worm wheel (203 b) and a gear (203 c), wherein the worm (203 a) is meshed with the worm wheel (203 b), the gear (203 c) is fixedly connected with the worm wheel (203 b), and the gear (203 c) is meshed with teeth (201 c) of the rotating plate (201).

5. The flow control mechanism of claim 4, wherein: one side of the opening ruler (204) is provided with a rack (204 a), the rack (204 a) is slidably arranged in the second chute (103) and is meshed with the gear (203 c), the rack (204 a) is provided with a pointer (204 b), and the pointer (204 b) is slidably contacted with the opening ruler (204).

6. A flow control mechanism according to any one of claims 3 to 5, wherein: one side of the sealing film (301) contacted with the inner wall of the pipe body assembly is provided with a sealing ring (301 a), the other side of the sealing film is provided with a first spring (301 b) and a guide rod (301 c), one end of the first spring (301 b) is connected with the sealing film (301), and the other end of the first spring is connected with the adjusting piece (302).

7. The flow control mechanism of claim 6, wherein: the adjustment member (302) includes an adjustment tube (302 a), a locking bolt (302 b), and a second spring (302 c), the locking bolt (302 b) passing through the positioning hole (104).

8. The flow control mechanism of claim 7, wherein: one side of the baffle plate (202) close to the rotating plate (201) is provided with a first sliding block (202 a), the other side of the baffle plate is provided with a second sliding block (202 b), the first sliding block (202 a) is arranged inside the third sliding groove (201 a) in a sliding mode, and the second sliding block (202 b) is arranged inside the first sliding groove (102) in a sliding mode.

9. A gas mixing device, characterized in that: comprising a flow control mechanism according to any one of claims 1 to 8; also included is a method of manufacturing a semiconductor device,

a mixing assembly (400) comprising a mixing box (401) connected to the output of the tube assembly (100);

the control assembly (500) comprises a central controller (501), a pH value sensor (502) and a temperature sensor (503), wherein the pH value sensor (502) is electrically connected with the central controller (501), and the central controller (501) is electrically connected with the opening control assembly (200).

10. A gas mixing device according to claim 9, wherein: the mixing box (401) is internally provided with a partition plate (401 a) and a flow channel (401 b), and the partition plates (401 a) are arranged in a staggered mode.