Closed photobioreactor water circulation device
By introducing initial bristle filtration and water tank buffer into the closed photobioreactor water circulation device, the problem of impurities in the water entering the filter directly is solved, extending the filter life and ensuring a clean water circulation.
Patent Information
- Application Number
- CN202420946415.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the cooling process of existing closed photobioreactor water circulation devices, impurities in the water enter the filter directly without preliminary filtering, resulting in a shortening of the service life of the filter.
Design a closed photobioreactor water circulation device, use bristles to perform preliminary filtering in the water collection pipe, remove impurities such as dust in the water, and combine the buffering and precipitation of the water tank to drive the water flow through the filter through the circulation pump to ensure that Clean the water and return it to the reactor.
It effectively extends the service life of the filter, ensures the cleanliness of cooling water, avoids the sound of water dripping directly, and forms a stable water circulation system.
Smart Images
Figure CN222286668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reactor water circulation, in particular to a closed photobioreactor water circulation device. Background Art
[0002] Microalgae are ubiquitous single-celled photoautotrophic microorganisms that play an important role in climate change and the supply of essential substances for life. Therefore, they are listed as important supply crops for future energy, industrial raw materials, and food. In the process of industrial large-scale cultivation of microalgae, a closed photoreactor is required. The closed photobioreactor is provided with the dripping pipe on the culture tube, which is connected to the external coolant supply pipeline. After the water discharged from the dripping pipe flows to the surface of the culture tube, it flows down from the water guide racks with convex teeth facing downwards, which are symmetrically arranged on both sides of the bottom of the culture tube. The liquid flow passes through the surface of the culture tube for cooling, and the water guide racks are used to promote the uniform distribution of water flow on the culture tube. The existing water circulation device uses the method of directly collecting the water flowing down from the water guide rack into the water collection tank, and then draining it to the filter through the water pipe of the water collection tank for filtration. However, due to the cooling process of the culture tube, a large amount of impurities in the air are easily adsorbed in the water, and the prior art does not perform preliminary filtration before passing the water into the filter, resulting in a large amount of impurities entering the filter, which greatly shortens the service life of the filter. Utility Model Content
[0003] In view of the above-mentioned prior art, the utility model provides a closed photobioreactor water circulation device, which uses the drainage of bristles to guide water into a water collecting pipe. The bristles have a filtering function, which preliminarily filters impurities such as dust in the water and increases the service life of the filter.
[0004] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:
[0005] A closed photobioreactor water circulation device comprises a water collecting pipe, a water storage tank, a filter, a circulation pump and a water supply pipe, wherein the first section of the water collecting pipe is connected to the water storage tank, and the end is provided with a strip-shaped water collecting through hole, wherein a plurality of bristles for guiding flow are provided in the water collecting through hole, and the bristles are in contact with the water guiding rack of the closed photobioreactor, the water storage tank, the filter, the circulation pump and the water supply pipe are connected in sequence, and the water supply pipe is connected to the cooling liquid supply pipeline of the closed photobioreactor.
[0006] Furthermore, the filter includes an outer shell, a filter baffle and a flow equalizing plate. The first end of the outer shell is connected to the water storage tank, and the second end is connected to the circulation pump. A plurality of filter baffles are arranged in sequence from left to right in the outer shell. The filter baffles are conical. The flow equalizing plate is arranged between the filter baffles. The flow equalizing plate is a conical plate with a plurality of water holes. The concave surfaces of the filter baffles and the flow equalizing plate face the first end of the outer shell.
[0007] Furthermore, the filter baffle includes an outer ring, a center disk, connecting rods and filter plates. The center disk is connected to the outer ring through the connecting rods, and the filter plates are fixed between the connecting rods.
[0008] Furthermore, the four sides of the filter plate are sealed and connected to the connecting rod, the center disk and the edge of the outer ring respectively.
[0009] Furthermore, the shell includes an upper half shell and a lower half shell, the contact surfaces of the upper half shell and the lower half shell are provided with a sealing gasket, the upper half shell and the lower half shell are provided with convex eaves, the convex eaves are provided with through holes, and the through holes are penetrated by fastening bolts.
[0010] Furthermore, a plurality of grooves are provided at the bottom of the shell, the grooves are arranged at intervals along the axial direction of the shell, and the grooves are located in the cavity between the filter baffle and the second end of the shell, a accommodating cavity is provided in the shell, a pry bar is provided in the accommodating cavity, a clamping head that is inserted into the grooves is provided at the bottom of the pry bar, and a push rod for pushing the center disk is hinged in the middle of the pry bar.
[0011] Furthermore, the central disk is provided with a slot, and the push rod can be inserted into the slot.
[0012] Furthermore, the lower half shell is connected to the water storage tank through a first pipe, the first pipe is provided with a first valve, and the upper half shell is provided with a second valve.
[0013] The beneficial effect of the utility model is that the water flowing downward from the water guide rack of the closed photobioreactor falls on the bristles, and the water is guided into the water collecting pipe by the drainage of the bristles. The bristles have a filtering effect, and dust and other impurities in the water are initially filtered. The drainage effect of the bristles can also prevent water from dripping directly into the water collecting pipe and making noise. After entering the water collecting pipe, the water flows from the head end to the end, and finally flows into the water storage tank. The water storage tank has the functions of buffering and sedimentation, which promotes the filtration of water flow. The water storage tank, filter, circulation pump and water supply pipe are connected in sequence. Under the action of the circulation pump, water flows through the filter and is discharged from the water supply pipe. The water supply pipe is connected with the coolant supply pipeline of the closed photobioreactor, and the filtered water returns to the closed photobioreactor for cooling. The cooled water flows back to the water collecting pipe from the water guide rack again, forming a water cycle. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic structural diagram of a closed photobioreactor water circulation device in Example 1 of the present application;
[0015] Figure 2 This is a schematic diagram of the structure of the water collecting pipe and the bristles in Example 1 of the present application;
[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the filter in Example 1 of the present application;
[0017] Figure 4 This is a schematic diagram of the structure of the filter partition in Example 1 of the present application;
[0018] Figure 5 This is a schematic diagram of the structure of the current equalizing plate in Example 1 of the present application;
[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the filter in Example 2 of the present application;
[0020] Figure 7 This is a schematic diagram of the cross-sectional structure of the filter in Example 2 of the present application;
[0021] Description of Figure Numbers:
[0022] 1 water collecting pipe, 2 water storage tank, 3 filter, 4 circulation pump, 5 water supply pipe, 6 bristles, 7 water guide rack, 8 coolant supply pipe, 9 shell, 10 filter baffle, 11 flow equalizing plate, 12 water hole, 13 outer ring, 14 center plate, 15 connecting rod, 16 filter plate, 17 upper half shell, 18 lower half shell, 19 convex eaves, 20 through hole, 21 fastening bolt, 22 groove, 23 pry bar, 24 clamp head, 25 push rod, 26 slot, 27 first valve, 28 second valve, 29 culture tube, 30 drip tube. DETAILED DESCRIPTION
[0023] The technical solution of the utility model is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.
[0024] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0025] Example 1
[0026] Please refer to the attached Figures 1 to 5 The present application provides a closed photobioreactor water circulation device, including a water collecting pipe 1, a water storage tank 2, a filter 3, a circulation pump 4 and a water supply pipe 5. The first section of the water collecting pipe 1 is connected to the water storage tank 2, and a strip-shaped water collecting through hole is provided at the end. A plurality of bristles 6 for diversion are provided in the water collecting through hole. The bristles 6 are in contact with the water guide rack 7 of the closed photobioreactor. The water flowing downward from the water guide rack 7 of the closed photobioreactor falls on the bristles 6. The water is guided into the water collecting pipe 1 by the drainage of the bristles 6. The bristles 6 have a filtering function, and dust and other impurities in the water are preliminarily filtered. The drainage function of the bristles 6 can also prevent water from dripping directly into the water collecting pipe 1 and making a sound. After entering the water collecting pipe 1, the water flows from the head end to the end, and finally flows into the water storage tank 2. The water storage tank 2 has the functions of buffering and sedimentation, and promotes the filtering of water flow. The water storage tank 2, filter 3, circulation pump 4 and water supply pipe 5 are connected in sequence. Under the action of circulation pump 4, water flows through filter 3 and is discharged from water supply pipe 5. Water supply pipe 5 is connected with coolant supply pipe 8 of closed photobioreactor. The filtered water returns to the closed photobioreactor for cooling. The cooled water flows back to water collecting pipe 1 from water guide rack 7 again, forming a water cycle.
[0027] Specifically, the filter 3 includes a shell 9, a filter baffle 10 and a flow equalizer 11. The first end of the shell 9 is connected to the water storage tank 2, and the second end is connected to the circulation pump 4. A plurality of filter baffles 10 are arranged in sequence from left to right in the shell 9. The filter baffles 10 are conical. The flow equalizer 11 is arranged between the filter baffles 10. The flow equalizer 11 is a conical plate with a plurality of water holes 12. The concave surfaces of the filter baffles 10 and the flow equalizer 11 face the first end of the shell 9. After being discharged from the water storage tank 2, the water enters the cavity from the first end of the shell 9, passes through a plurality of filter baffles 10 and the flow equalizer 11, and then is discharged from the second end to the circulation pump 4. Impurities in the water are filtered out when passing through the filter plate. The flow equalizer 11 is a conical plate with a plurality of water holes 12. When the water flows through the two filter plates, it needs to pass through the water holes 12, so that the water flow is more evenly distributed in the inner cavity of the filter 3. The filter baffle 10 is conical in shape, which can increase the filtering area of the filter baffle 10. After the water flows into the middle of the first end, the distance difference between the middle of the filter baffle 10 and the distance difference between the middle of the filter baffle 10 and the distance difference between the middle of the flat filter plate and the distance difference between the surrounding areas is reduced, which can promote more uniform water flow in different parts of the filter plate, thereby making full use of the filter baffles 10 in different parts.
[0028] Example 2
[0029] Please refer to the attached Figures 6-7 The difference between this embodiment and the first embodiment is that the filter baffle 10 includes an outer ring 13, a center disk 14, a connecting rod 15 and a filter plate 16. The center disk 14 is connected to the outer ring 13 through the connecting rod 15. The outer ring 13 has a certain strength, which can make the filter baffle 10 and the housing 9 in close contact, improve the sealing performance, and prevent the water flow from passing through the side of the filter plate. The filter plate 16 is fixed between the connecting rods 15, which improves the strength of the filter plate 16.
[0030] Specifically, the four sides of the filter plate 16 are sealed and connected to the edges of the connecting rod 15, the center disk 14 and the outer ring 13 respectively, so as to prevent water from directly flowing through the gaps around the filter plate 16, thereby improving the filtering capacity.
[0031] Specifically, the housing 9 includes an upper half shell 17 and a lower half shell 18, a sealing gasket is provided on the contact surface of the upper half shell 17 and the lower half shell 18, and a convex eave 19 is provided on the upper half shell 17 and the lower half shell 18, and the convex eave 19 is provided with a through hole 20, and a fastening bolt 21 is passed through the through hole 20. The upper half shell 17 and the lower half shell 18 can be opened to facilitate the replacement of the filter partition 10. After replacing the filter partition 10, the upper half shell 17 and the lower half shell 18 are aligned again, and the fastening bolts 21 are passed through the through hole 20 and then tightened to re-seal the upper half shell 17 and the lower half shell 18. A sealing gasket is provided on the contact surface of the upper half shell 17 and the lower half shell 18, and the sealing gasket improves the sealing between the upper half shell 17 and the lower half shell 18 to prevent the housing 9 from leaking.
[0032] Specifically, the bottom of the shell 9 is provided with a plurality of grooves 22, the grooves 22 are arranged at intervals along the axial direction of the shell 9, and the grooves 22 are located in the cavity between the filter partition 10 and the second end of the shell 9, the shell 9 is provided with a receiving cavity, the receiving cavity is provided with a pry bar 23, the bottom of the pry bar 23 is provided with a clamping head 24 inserted into the groove 22, and the middle of the pry bar is hinged with a push rod 25 for pushing the center disk 14. The bottom of the pry bar 23 is inserted into the groove 22, and then the push rod 25 is aligned with the center disk 14, and the pry bar 23 is moved to make the push rod 25 push the center disk 14 to move. Since the center disk 14 is connected to the outer ring 13 through the connecting rod 15, the pry bar 23 pushes multiple filter partitions 10 to move along the axial direction. When replacing the filter partition 10, the filter partition and the flow equalizer 11 near the first end can be taken out, and then the filter partition 10 and the flow equalizer 11 can be pushed to move toward the first end, and then the flow equalizer 11 and the new filter partition are placed at the second end, and the filter partition 10 at the filter end is reused. After use, the pry bar 23 is placed in the accommodating cavity to prevent the pry bar 23 from being lost.
[0033] Specifically, the central disk 14 is provided with a slot 26, and the push rod 25 can be inserted into the slot 26. This can prevent the push rod 25 and the central disk 14 from slipping, thereby improving the stability of pushing the filter partition 10.
[0034] Specifically, the lower half shell 18 is connected to the water storage tank 2 through a first pipe, the first pipe is provided with a first valve 27, and the upper half shell 17 is provided with a second valve 28. When replacing the filter baffle 10, the first valve 27 is closed first, and then the second valve 28 is opened, and the water in the filter 3 is pumped out under the action of the circulation pump 4, which can avoid a large amount of water overflowing when the outer shell 9 is opened.
[0035] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A closed photobioreactor water circulation device, characterized in that: It includes a water collecting pipe, a water storage tank, a filter, a circulation pump and a water supply pipe. The first section of the water collecting pipe is connected to the water storage tank, and the end is provided with a strip-shaped water collecting hole. A plurality of bristles for diversion are provided in the water collecting hole, and the bristles are in contact with the water guide rack of the closed photobioreactor. The water storage tank, the filter, the circulation pump and the water supply pipe are connected in sequence, and the water supply pipe is connected to the cooling liquid supply pipeline of the closed photobioreactor.
2. A closed photobioreactor water circulation device according to claim 1, characterized in that: The filter includes an outer shell, a filter baffle and a flow equalizing plate. The first end of the outer shell is connected to the water storage tank, and the second end is connected to the circulation pump. A plurality of filter baffles are arranged in sequence from left to right in the outer shell. The filter baffles are conical. The flow equalizing plate is arranged between the filter baffles. The flow equalizing plate is a conical plate with a plurality of water holes. The concave surfaces of the filter baffle and the flow equalizing plate face the first end of the outer shell.
3. A closed photobioreactor water circulation device according to claim 2, characterized in that: The filter baffle comprises an outer ring, a center disk, connecting rods and filter plates. The center disk is connected to the outer ring through the connecting rods, and the filter plates are fixed between the connecting rods.
4. A closed photobioreactor water circulation device according to claim 3, characterized in that: The four sides of the filter plate are respectively sealed and connected to the connecting rod, the center plate and the edge of the outer ring.
5. The closed photobioreactor water circulation device according to claim 2, characterized in that: The shell comprises an upper half shell and a lower half shell, a sealing gasket is arranged on the contact surface of the upper half shell and the lower half shell, a convex eave is arranged on the upper half shell and the lower half shell, a through hole is arranged on the convex eave, and a fastening bolt is passed through the through hole.
6. A closed photobioreactor water circulation device according to claim 4, characterized in that: A plurality of grooves are provided at the bottom of the shell, and the grooves are arranged at intervals along the axial direction of the shell, and the grooves are located in the cavity between the filter partition and the second end of the shell. A accommodating cavity is provided in the shell, and a pry bar is provided in the accommodating cavity. A clamping head that is inserted into the groove is provided at the bottom of the pry bar, and a push rod for pushing the center disk is hinged in the middle of the pry bar.
7. A closed photobioreactor water circulation device according to claim 6, characterized in that: The central disk is provided with a slot, and the push rod can be inserted into the slot.
8. The closed photobioreactor water circulation device according to claim 5, characterized in that: The lower half shell is connected to the water storage tank through a first pipeline, the first pipeline is provided with a first valve, and the upper half shell is provided with a second valve.