CN214635405U - Landscape type formaldehyde removing device based on microorganism-plant combined action - Google Patents
Landscape type formaldehyde removing device based on microorganism-plant combined action Download PDFInfo
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- CN214635405U CN214635405U CN202120641881.0U CN202120641881U CN214635405U CN 214635405 U CN214635405 U CN 214635405U CN 202120641881 U CN202120641881 U CN 202120641881U CN 214635405 U CN214635405 U CN 214635405U
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 204
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 134
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- 241000196324 Embryophyta Species 0.000 claims description 98
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 229920001971 elastomer Polymers 0.000 claims description 10
- 230000000813 microbial effect Effects 0.000 claims description 8
- 241001312214 Epipremnum aureum Species 0.000 claims description 7
- 239000000661 sodium alginate Substances 0.000 claims description 7
- 229940005550 sodium alginate Drugs 0.000 claims description 7
- 241000233866 Fungi Species 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 description 13
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- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
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- 241000193830 Bacillus <bacterium> Species 0.000 description 2
- 241000563903 Bacillus velezensis Species 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
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- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical class OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
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- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a view formula removes formaldehyde device based on microorganism-plant combined action, include: a plant water tank and a microorganism water tank; the plant water tank is arranged in the plant water tank, handles are arranged on two sides of the plant water tank, a water outlet is formed in the bottom of the plant water tank, a light bar is arranged on the outer side wall of the plant water tank, two plant fixing devices are arranged in the plant water tank and are respectively located on two sides of the plant water tank, plants are arranged in the plant fixing devices, a water circulating device is arranged at the bottom of the microorganism water tank, and microorganism bacterium balls growing with methylotrophic bacteria are arranged in the microorganism water tank. The landscape type formaldehyde removing device based on the combined action of the microorganism and the plant absorbs formaldehyde by adopting the mode of combining the microorganism and the plant, and obviously improves the efficiency of removing the formaldehyde.
Description
Technical Field
The utility model relates to a formaldehyde treatment technical field, more specifically say, the utility model relates to a view formula removes formaldehyde device based on microorganism-plant combined action.
Background
The formaldehyde pollution has the characteristics of various sources, trace accumulation, long-term durability and the like. At present, the formaldehyde removal technology mainly exists: chemical and biological methods, including pharmaceutical method, catalytic conversion (photocatalyst decomposition), plasma purification, ventilation method, plant purification technology, activated carbon adsorption, anion purification, ozone purification, and their combination technology. Different purification products and purification modes have different removal efficiency and removal characteristics for formaldehyde due to different action principles and action modes.
In addition, considering that people have urgent need for removing formaldehyde after house decoration at present, residual formaldehyde is difficult to completely remove, and indoor ventilation needs to be kept for a long time or other effective measures are taken to accelerate the complete removal of the indoor formaldehyde. Meanwhile, the existing formaldehyde removing devices on the market, such as chemical formaldehyde removing devices, are cheap, but have low efficiency, and the removal effectiveness is difficult to ensure. Some methods and devices capable of effectively removing formaldehyde have high requirements on equipment technology or reaction conditions, and are difficult to realize. For example, some formaldehyde removing devices on the market can utilize the synergistic effect of a microorganism purifying column and an anion generator, and then the ultraviolet light source and the photocatalyst pipeline are matched for treatment, so that the air quality is improved. However, the ultraviolet light source and the photocatalyst pipeline adopt a photocatalytic technology with higher cost, strict requirements on equipment and technology and limited audience groups, so that the ultraviolet light source and the photocatalyst pipeline are not suitable for large-scale popularization. Therefore, there is a need to provide a landscape formaldehyde removal device based on the combined action of microorganism and plant to at least partially solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
In order to solve the above problems, the present invention provides a landscape-type formaldehyde removing device based on the combined action of microorganism and plant, comprising: a plant water tank and a microorganism water tank; the plant water tank is arranged in the plant water tank, handles are arranged on two sides of the plant water tank, a water outlet is formed in the bottom of the plant water tank, a light bar is arranged on the outer side wall of the plant water tank, two plant fixing devices are arranged in the plant water tank and are respectively located on two sides of the plant water tank, plants are arranged in the plant fixing devices, a water circulating device is arranged at the bottom of the microorganism water tank, and microorganism bacterium balls growing with methylotrophic bacteria are arranged in the microorganism water tank.
Preferably, the plant is scindapsus aureus.
Preferably, the microbial ball is prepared by taking polyvinyl alcohol-sodium alginate-activated carbon as a composite carrier.
Preferably, the bottom of the water circulation device is provided with a plurality of strong suction cups.
Preferably, the symmetry is provided with water tank draw-in groove and two fixed slot on the inner wall of plant water tank, two fixed slot sets up the both sides of water tank draw-in groove, the microorganism water tank sets up in the water tank draw-in groove, the microorganism water tank passes through the water tank draw-in groove with plant water tank joint, two plant fixing device sets up respectively in the fixed slot.
Preferably, a rubber plug is arranged on the water outlet and comprises a top layer, a hollow layer and a bottom layer; the top layer with the bottom sets up respectively the both ends of cavity layer, the cavity layer with the delivery port joint, the top layer is located on the interior bottom surface of plant water tank, the bottom is located on the outer bottom surface of plant water tank, be provided with the through-hole on the bottom, the through-hole with cavity layer intercommunication.
Compared with the prior art, the utility model discloses at least, including following beneficial effect:
1. the landscape type formaldehyde removing device based on the combined action of the microorganisms and the plants absorbs formaldehyde by adopting the mode of combining the microorganisms and the plants, and obviously improves the formaldehyde removing efficiency compared with a single formaldehyde removing method.
2. The problem of secondary pollution can be avoided by using biodegradable formaldehyde, and the arranged lamp strip (3) can ensure that plants can also carry out photosynthesis to absorb formaldehyde, release oxygen and purify air at night, so that the safety of the plants is ensured.
3. After the formaldehyde concentration reaches the standard, can remove the interior microorganism fungus ball of device, place this device in indoor one corner as plant water planting case, the aesthetic property also can be satisfied.
4. The utility model provides a view formula removes formaldehyde device not only overcomes among the prior art formaldehyde and gets rid of the limitation such as inefficiency, secondary pollution are obvious, the mechanism security is still unclear, has increased the use aesthetic property of device simultaneously, improves user experience and feels, enlarges audience group. The device utilizes the characteristic that the methylotrophic bacillus takes formaldehyde as a unique carbon source for rapid metabolism and the characteristic that the scindapsus aureus absorbs the formaldehyde, directly absorbs the formaldehyde in the air through the combined action of plants and microorganisms, and also degrades the formaldehyde dissolved in water through the methylotrophic bacteria, thereby realizing the double removal of the formaldehyde.
The utility model discloses a view formula removes formaldehyde device based on microorganism-plant combined action, other advantages, objects and characteristics of the utility model will be embodied in part through the following description, and part will still be understood through the research and practice to the utility model and for technical personnel in the field understand.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the landscape formaldehyde removal device based on the combined action of microorganism and plant.
Fig. 2 is a schematic structural diagram of the landscape formaldehyde removal device based on the combined action of the microorganism and the plant.
Fig. 3 is a schematic structural diagram of the landscape formaldehyde removal device based on the combined action of microorganisms and plants.
Fig. 4 is a cross-sectional view of the landscape formaldehyde removing device based on the combined action of the microorganism and the plant.
Fig. 5 is a schematic structural diagram of the landscape type center-removing rubber plug based on the combined action of the microorganism and the plant of the present invention.
Fig. 6 is an explosion section of the landscape formaldehyde removing device based on the combined action of the microorganism and the plant.
FIG. 7 is a scatter diagram of formaldehyde concentration over time under the action of the landscape formaldehyde removal device based on the combined action of microorganisms and plants (experiment I).
FIG. 8 is a scatter diagram of formaldehyde concentration over time under the action of the landscape formaldehyde removal device based on the combined action of microorganisms and plants (experiment II).
In the figure: 1 plant water tank, 11 water tank draw-in grooves, 12 fixed card grooves, 2 microorganism water tanks, 3 lamp strips, 4 rubber plugs, 41 top layers, 42 hollow layers, 43 bottom layers, 5 plant fixing device.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-8, the utility model provides a landscape formaldehyde removing device based on the combined action of microorganism and plant, which comprises: a plant water tank 1 and a microorganism water tank 2; microorganism water tank 2 sets up the inside of plant water tank 1, plant water tank 1 with the both sides of microorganism water tank 2 all are provided with the handle, the bottom of plant water tank 1 is equipped with the delivery port, set up lamp strip 3 on the 1 lateral wall of plant water tank, be provided with two plant fixing device 5 in the plant water tank 1, two plant fixing device 5 is located respectively the both sides of microorganism water tank 2, be provided with the plant in the plant fixing device 5, the bottom of microorganism water tank 2 is provided with water circle device, be provided with the microbial ball that has methylotrophic fungi in the microorganism water tank 2.
The working principle of the technical scheme is as follows: the plant water tank 1 and the microorganism water tank 2 are mutually independent and do not influence each other, the plant water tank 1 and the microorganism water tank 2 can be moved and placed through the handle, the situation that the plant and microorganisms in the bacteria balls can have independent living environments is effectively guaranteed, the light bar 3 is arranged on the plant water tank 1, the light bar 3 adopts a full-spectrum quasi-light lamp to simulate solar irradiation, the situation that the plant can also carry out photosynthesis at night is guaranteed, the plant fixing devices 5 are arranged on two sides of the microorganism water tank 2, the plant for absorbing formaldehyde can be planted in the plant fixing devices 5, the water circulating device can enable water in the microorganism water tank 2 to circularly flow, the oxygen content in water in the microorganism water tank 2 is guaranteed to be sufficient, the situation that a large amount of anaerobic microorganisms breed odorous water can be avoided, and the microorganism balls are scattered and float in the microorganism water tank 2 to be in direct contact with air, can ensure that the methylotrophic bacillus in the microbial community can take in enough oxygen and nutrients.
The beneficial effects of the above technical scheme are that: during the use, place the device and reach the purpose of getting rid of formaldehyde promptly at airtight environment a period, the nutrient solution in plant water tank 1 and the microorganism water tank 2 is changed every certain period, get rid of formaldehyde device during operation, rely on the metabolism of microorganism, turn into carbon dioxide and water with formaldehyde fast degradation, the plant absorbs carbon dioxide and carries out photosynthesis, also directly absorb formaldehyde simultaneously, both combine to get rid of indoor formaldehyde jointly, air-purifying, after the purification is accomplished, can get rid of the interior microorganism fungus ball of device, place this device in indoor one corner as plant water planting case, delicacy and pleasing to the eye.
In one example, two sets of experiments were performed for formaldehyde removal, experiment one: the experiment place is a wood cabinet in a house which is just finished with decoration, the experiment temperature is 10-14 ℃, and the initial concentration of formaldehyde is 0.113mg/m3The experimental group is the change of formaldehyde of the wood cabinet under the action of the device under the closed condition, the control group is the change of formaldehyde of the wood cabinet under the closed condition without the device under the same experimental condition, the plant is scindapsus aureus, the microbial ball is prepared by taking polyvinyl alcohol-sodium alginate-activated carbon as a composite carrier, and a plurality of strong suction cups are arranged at the bottom of the water circulation device;
experiment two: the experiment place is a wood cabinet which is just painted, the experiment temperature is 25-30 ℃, and the initial concentration of formaldehyde is 0.2mg/m3The concentration in the cabinet reached 1.1mg/m due to the concentrated release of paint formaldehyde in the first four days3The experiment group is that under the confined condition the wooden cabinet is in the utility model discloses the change of formaldehyde under the device effect, the contrast group then is that under the confined condition the wooden cabinet is not taking the formaldehyde change under the same experimental condition of device.
The working principle of the technical schemeThe beneficial effects are that: in the first experiment, the initial concentration of formaldehyde is 0.113mg/m at 10-14 DEG C3The removal rate of the device to formaldehyde is 34-36 percent and is obviously higher than the removal rate of a control group by 27-29 percent (t test, p) after testing for 12 days under the condition of<0.1); in the second experiment, the formaldehyde concentration of the experimental group is always lower than that of the control group, and the daily reduction rate of the formaldehyde concentration of the experimental group is 45.45%, 16.67% and 20.00% from the fifth day to the seventh day of the experiment, and is obviously higher than that of the control group by 33.33%, 0 and 0; the plant planted in the plant fixing device 5 is scindapsus aureus, and when the scindapsus aureus is planted, the root of the scindapsus aureus is ensured to be deeply inserted into water in the plant water tank 1, and the microbial ball is prepared by taking polyvinyl alcohol-sodium alginate-activated carbon as a composite carrier, and the preparation method comprises the steps of adding 5% of Sodium Alginate (SA) and 8% of polyvinyl alcohol (PVA) into 100ml of deionized water, heating in a constant-temperature water bath to completely dissolve the sodium alginate and the activated carbon, cooling to room temperature, adding 1% of activated carbon powder, and culturing until the dry weight is 45 mg.L-1Uniformly mixing the cell suspension and the PVA-SA mixed solution in a volume ratio of 1:1, slowly dripping the mixed solution into a mixed solution of saturated boric acid and calcium chloride by using an injector, standing for 1-2 days at a constant temperature of 40 ℃ to fully calcify the mixed solution into balls, taking out the balls after the balls are completely molded, washing the balls with physiological saline, sucking surface moisture by using filter paper, and storing the balls at 4 ℃ for later use; the microorganism in the microorganism bacterium ball selects Bacillus methylotrophicus (Bacillus methylotrophicus), is purchased from China general microorganism bacterium preservation management center (number CMGCC1.12059), grows by taking formaldehyde as the only carbon source and energy, and purifies the formaldehyde through dissimilation and assimilation; the water circle device is the cuboid water pump, the motor winding insulation of water pump is totally closed and adopt the good low pressure direct current brushless motor of security performance, and the water pump shell adopts ABS environmental protection material, and the encapsulating is sealed, and the side is from taking the filter screen, and the water pump bottom is equipped with 3 powerful sucking disc wares and is equipped with high-quality 5V lithium cell group, the lift 1 meter, flow 120L/h, lasting duration need not to insert the electricity, and concrete model is no longer repeated.
In one embodiment, a water tank clamping groove 11 and two fixing clamping grooves 12 are symmetrically arranged on the inner wall of the plant water tank 1, the two fixing clamping grooves 12 are arranged on two sides of the water tank clamping groove 11, the microbial water tank 2 is arranged in the water tank clamping groove 11, the microbial water tank 2 is clamped with the plant water tank 1 through the water tank clamping groove 11, and the two plant fixing devices 5 are respectively arranged in the fixing clamping grooves 12.
The working principle and the beneficial effects of the technical scheme are as follows: through the design of above-mentioned structure, can make things convenient for the installation of microorganism water tank 2 in plant water tank 1, only need can accomplish placing of microorganism water tank 2 with microorganism water tank 2 along water tank draw-in groove 11 slips into to plant water tank 1 in, water tank draw-in groove 11 can also prevent that microorganism water tank 2 from taking place the displacement in plant water tank 1 simultaneously, fixed slot 12 can carry out the position to plant fixing device 5 equally and prescribe a limit to, prevent that it from removing in plant water tank 1.
In one embodiment, a rubber stopper 4 is arranged on the water outlet, and the rubber stopper 4 comprises a top layer 41, a hollow layer 42 and a bottom layer 43; top layer 41 with bottom 43 sets up respectively the both ends of hollow layer 42, hollow layer 42 with the delivery port joint, top layer 41 is located on the interior bottom surface of plant water tank 1, bottom 43 is located on the outer bottom surface of plant water tank 1, be provided with the through-hole on the bottom 43, the through-hole with hollow layer 42 intercommunication.
The working principle and the beneficial effects of the technical scheme are as follows: through the design of above-mentioned structure, directly take off rubber buffer 4 can follow the delivery port and carry out the drainage operation in the drainage of plant water tank 1, convenience of customers excretes the waste water in the plant water tank 1, simultaneously after filling liquid in plant water tank 1, water pressure can compress tightly top layer 41 downwards, the leakproofness of bottom surface in top layer 41 and the plant water tank 1 is increased, simultaneously because hydraulic effect, the center department of top layer 41 can be impressed downwards the inside of cavity layer 42, and then outwards extrude cavity layer 42 from the inside of cavity layer 42, the leakproofness between the lateral wall of cavity layer 42 and the delivery port has been increased, be provided with the through-hole simultaneously on bottom 43, only need upwards mention rubber buffer 4 in the drainage, bottom 43 can contract through the through-hole, convenience of customers takes off rubber buffer 4 and carries out the drainage.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details shown and described herein without departing from the general concept defined by the claims and their equivalents.
Claims (6)
1. A landscape type formaldehyde removing device based on combined action of microorganisms and plants is characterized by comprising: a plant water tank (1) and a microorganism water tank (2); microorganism water tank (2) set up the inside of plant water tank (1), plant water tank (1) with the both sides of microorganism water tank (2) all are provided with the handle, the bottom of plant water tank (1) is equipped with the delivery port, set up lamp strip (3) on plant water tank (1) lateral wall, be provided with two plant fixing device (5) in plant water tank (1), two plant fixing device (5) are located respectively the both sides of microorganism water tank (2), be provided with the plant in plant fixing device (5), the bottom of microorganism water tank (2) is provided with water circle device, be provided with the microbial ball that has methylotrophic fungi in a long time in microorganism water tank (2).
2. The landscape formaldehyde removal device based on the combined action of microorganisms and plants of claim 1, wherein the plant is scindapsus aureus.
3. The landscape type formaldehyde removal device based on the combined action of the microorganisms and the plants as claimed in claim 1, wherein the microorganism bacterium ball is prepared by using polyvinyl alcohol-sodium alginate-activated carbon as a composite carrier.
4. The landscape type formaldehyde removing device based on the combined action of the microorganism and the plant as claimed in claim 1, wherein the bottom of the water circulation device is provided with a plurality of strong suction cups.
5. The landscape type formaldehyde removing device based on the combined action of the microorganisms and the plants as claimed in claim 1, wherein the plant water tank (1) is symmetrically provided with a water tank clamping groove (11) and two fixing clamping grooves (12) on the inner wall, the two fixing clamping grooves (12) are arranged on two sides of the water tank clamping groove (11), the microorganism water tank (2) is arranged in the water tank clamping groove (11), the microorganism water tank (2) is clamped with the plant water tank (1) through the water tank clamping groove (11), and the two plant fixing devices (5) are respectively arranged in the fixing clamping grooves (12).
6. The landscape type formaldehyde removal device based on the combined action of microorganisms and plants as claimed in claim 1, wherein a rubber plug (4) is arranged on the water outlet, and the rubber plug (4) comprises a top layer (41), a hollow layer (42) and a bottom layer (43); top layer (41) with bottom (43) set up respectively the both ends of hollow layer (42), hollow layer (42) with the delivery port joint, top layer (41) are located on the interior bottom surface of plant water tank (1), bottom (43) are located on the outer bottom surface of plant water tank (1), be provided with the through-hole on bottom (43), the through-hole with hollow layer (42) intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120641881.0U CN214635405U (en) | 2021-03-30 | 2021-03-30 | Landscape type formaldehyde removing device based on microorganism-plant combined action |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120641881.0U CN214635405U (en) | 2021-03-30 | 2021-03-30 | Landscape type formaldehyde removing device based on microorganism-plant combined action |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214635405U true CN214635405U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120641881.0U Active CN214635405U (en) | 2021-03-30 | 2021-03-30 | Landscape type formaldehyde removing device based on microorganism-plant combined action |
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| Country | Link |
|---|---|
| CN (1) | CN214635405U (en) |
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2021
- 2021-03-30 CN CN202120641881.0U patent/CN214635405U/en active Active
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