CN216306165U - Noise reduction structure for air compressor and negative oxygen ion generator equipment - Google Patents
Noise reduction structure for air compressor and negative oxygen ion generator equipment Download PDFInfo
- Publication number
- CN216306165U CN216306165U CN202122515453.6U CN202122515453U CN216306165U CN 216306165 U CN216306165 U CN 216306165U CN 202122515453 U CN202122515453 U CN 202122515453U CN 216306165 U CN216306165 U CN 216306165U
- Authority
- CN
- China
- Prior art keywords
- baffle
- air
- air inlet
- noise reduction
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides a noise reduction structure and negative oxygen ion generation equipment for an air compressor, wherein the noise reduction structure comprises: the shell is internally provided with a flow guide cavity, the shell is provided with an air inlet and an air outlet which are communicated with the flow guide cavity, and the air inlet or the air outlet is communicated with the air compressor; the baffle sets up the water conservancy diversion intracavity, the baffle has relative both ends in extending direction, and wherein one end is the link, and the other end is the free end, the link with the casing is connected, the free end with the casing interval sets up to form the passageway that is used for switching on gas.
Description
Technical Field
The utility model belongs to the technical field of noise reduction, and particularly relates to a noise reduction structure for an air compressor and negative oxygen ion generation equipment.
Background
The negative oxygen ion generating equipment is mainly used for connecting high-pressure air into the cavity and generating negative oxygen ions through impact with liquid in the cavity, however, in the air supply process, the air compressor inevitably generates large noise in the air flow generating process, and therefore the effect of using the negative oxygen ion generating equipment by a user is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a noise reduction structure and a negative oxygen ion generating device, so as to solve the technical problem of how to reduce the noise generated by the air compressor.
The technical scheme of the utility model is realized as follows:
the embodiment of the utility model provides a noise reduction structure for an air compressor, which comprises: the shell is internally provided with a flow guide cavity, the shell is provided with an air inlet and an air outlet which are communicated with the flow guide cavity, and the air inlet or the air outlet is communicated with the air compressor; the baffle sets up the water conservancy diversion intracavity, the baffle has relative both ends in extending direction, and wherein one end is the link, and the other end is the free end, the link with the casing is connected, the free end with the casing interval sets up to form the passageway that is used for switching on gas.
In some embodiments, the housing comprises first and second oppositely disposed sidewalls; the baffle plates are arranged in a plurality at intervals, and the first side wall and the second side wall are alternately connected with the baffle plates.
In some embodiments, the plurality of baffles each extend in a first direction, adjacent baffles being partially coincident in a second direction, the second direction being perpendicular to the first direction.
In some embodiments, the first sidewall and the second sidewall both extend in the second direction, and a ratio of an extension length of the baffle to a distance between the first sidewall and the second sidewall is greater than 0.5 and less than or equal to 0.9.
In some embodiments, the air inlet and the air outlet are respectively disposed at opposite ends of the housing in the second direction.
In some embodiments, the air inlet extends in the second direction, and/or the air outlet extends in the first direction.
In some embodiments, the plurality of baffles includes a first baffle adjacent to the air inlet in the second direction, and a region between a free end of the first baffle and the housing and the air inlet are spaced apart in the first direction.
In some embodiments, the plurality of baffles includes a second baffle adjacent to the air outlet in the second direction, and a region between a free end of the second baffle and the housing and the air outlet are spaced apart in the first direction.
The embodiment of the utility model also provides negative oxygen ion generating equipment, which comprises: an air compressor for generating compressed air; the negative oxygen ion generator is provided with a container for containing liquid, an air inlet pipe inserted into the container and an air outlet pipe communicated with the container; the air inlet pipe is communicated with an outlet of the air compressor; wherein, the inlet or the outlet of the air compressor is provided with the noise reduction structure.
In some embodiments, further comprising: the coil pipe, the coil pipe intercommunication the gas outlet of structure of making an uproar with negative oxygen ion generator the intake pipe, just the coil pipe is the heliciform and encircles the setting.
The noise reduction structure comprises a shell and a baffle, wherein a flow guide cavity is formed in the shell, the baffle is arranged in the flow guide cavity, the connecting end of the baffle is connected with the shell, the free end of the baffle is spaced from the shell to form a gas conduction channel, the baffle is arranged to interfere gas entering the flow guide cavity, the agitation frequency of the gas flow is relieved, noise in the gas flow is reduced, and user experience is improved.
Drawings
FIG. 1 is a perspective view of a noise reducing structure according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a noise reduction structure according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a negative oxygen ion generating apparatus according to an embodiment of the present invention.
Description of reference numerals:
1. a noise reduction structure; 11. a housing; 111. a flow guide cavity; 112. an air inlet; 113. an air outlet; 114. a channel; 115. a first side wall; 116. a second side wall; 12. a baffle plate; 12a, a first baffle; 12b, a second baffle; 121. a connecting end; 122. a free end; 2. an air compressor; 3. a negative oxygen ion generator; 31. a container; 32. an air inlet pipe; 33. an air outlet pipe; 4. and (4) coiling the pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The individual features described in the embodiments can be combined in any suitable manner without departing from the scope, for example different embodiments and aspects can be formed by combining different features. In order to avoid unnecessary repetition, various possible combinations of the specific features of the utility model will not be described further.
In the following description, the term "first/second/so" is used merely to distinguish different objects and does not mean that there is a common or relationship between the objects. It should be understood that the description of the "upper", "lower", "outer" and "inner" directions as related to the orientation in the normal use state, and the "left" and "right" directions indicate the left and right directions indicated in the corresponding schematic drawings, and may or may not be the left and right directions in the normal use state. The direction indicated by the arrows in the figure is the gas flow direction.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. "plurality" means greater than or equal to two.
The embodiment of the utility model provides a noise reduction structure for an air compressor, which can be applied to devices such as negative oxygen ion generating equipment, a humidifier and the like. It should be noted that the application scenario type of the embodiment of the present invention does not limit the noise reduction structure of the embodiment of the present invention.
The following description will be made on the working principle of the negative oxygen ion generating device, taking the application of the noise reduction structure to the negative oxygen ion generating device as an example:
the negative oxygen ion generating device can be seen as a closed hollow container, a cavity in the negative oxygen ion generating device is filled with water, compressed air is introduced into the cavity and used for impacting the water to generate a gas-water mixture containing a large number of bubbles, kinetic energy formed by the compressed air acts on water molecules in the water to break the water molecules and crack the water molecules into positive and negative oxygen ions, and the negative oxygen ions are combined with the air to form negative oxygen ion gas, so that the gas-water mixture contains a large number of negative oxygen ions.
The principle of compressed air generation is explained below:
the crankshaft in the air compressor is driven by the motor to rotate, and the crankshaft drives the connecting rod to move, so that the piston reciprocates, and the volume of a cylinder in the air compressor is changed. In the compression stroke, air enters the cylinder through the air filter by the air inlet valve, and due to the reduction of the volume of the cylinder, the compressed air enters the air storage tank through the exhaust pipe and the one-way valve under the action of the exhaust valve, and is automatically stopped under the control of the pressure switch when the exhaust pressure reaches the rated pressure.
In the process of generating the compressed gas, the gas needs to be introduced by opening and closing a valve. The pressure and speed of the air inside the air compressor are fluctuated due to the periodical opening and closing of the valve, continuous pulse gas can be generated at the air inlet end and the air outlet end of the air compressor, the pulse gas passes through the air inlet end or the air outlet end at a high speed, and the pressure and the moving speed of the pulse gas have larger difference with the ambient air, so that aerodynamic noise is generated. This noise will radiate outward through the air inlet, the gas outlet of air compressor and the casing of air compressor machine.
The embodiment of the utility model provides a noise reduction structure for an air compressor. As shown in fig. 1 and 2, the noise reduction structure 1 includes a housing 11 and a baffle 12. The shell 11 is provided with a flow guide cavity 111 inside, the shell 11 is provided with an air inlet 112 and an air outlet 113 which are communicated with the flow guide cavity 111, air can enter the flow guide cavity 111 from the air inlet 112, and the air in the flow guide cavity 111 can flow out from the air outlet 113. The air inlet 112 or the air outlet 113 of the noise reduction structure is communicated with the air compressor 2, that is, the air compressor in the embodiment of the present invention may be connected to the air inlet 112 of the noise reduction structure 1, so that the noise reduction structure 1 is used for reducing the noise of the high-pressure gas led out by the air compressor; the air compressor in the embodiment of the present invention may also be connected to the air outlet 113 of the noise reduction structure 1, so that the noise reduction structure 1 can reduce the noise of the air before entering the air compressor. Of course, the noise reduction structure 1 in the embodiment of the present invention may also be disposed at both the air inlet end and the air outlet end of the air compressor.
As shown in fig. 2, the baffle 12 is disposed in the diversion cavity 111, the baffle 12 has two opposite ends in the extending direction, the extending direction represents the maximum dimension direction of the baffle 12, the baffle 12 in the embodiment of the present invention may be a flat plate structure, or may be a curved surface structure, and the embodiment of the present invention may change the resistance effect on the gas flowing through the diversion cavity 111 by adjusting the structure of the baffle 12. One end of the baffle 12 in the extending direction is a connecting end 121, the other end of the baffle 12 in the extending direction is a hanging end 122, the connecting end 121 is connected with the shell 11, and the hanging end 122 and the shell 11 are arranged at an interval, so that a channel 114 for conducting gas is formed between the hanging end 122 of the baffle 12 and the shell 11.
It should be noted that, in the embodiment of the present invention, the connection form of the baffle 12 and the casing 11 is not limited, and the baffle 12 and the casing 11 may be fixed by injection molding or welding, as long as the baffle 12 can be kept relatively stationary with respect to the diversion cavity 111 during the noise reduction process.
The noise reduction principle of the noise reduction structure is explained as follows:
the gas enters the flow guide cavity 111 from the gas inlet 112 of the shell 11, the gas entering the flow guide cavity 111 has a certain direction and initial speed, and because the gas is obstructed by the baffle 12, the gas in the flow guide cavity 111 cannot directly pass through the gas outlet 113 of the shell 11, and the gas needs to flow to the gas outlet 113 after bypassing the suspended end 122 of the baffle 12 and the channel 114 spaced from the shell 11, so that the gas in the flow guide cavity 111 changes the direction of the gas flow under the action of the baffle 12, and in the process of changing the direction of the gas flow, part of energy of the gas flow can be dissipated, so that the speed of the gas flow is reduced, and the noise in the flowing process of the gas flow is reduced; on the other hand, the airflow enters the diversion cavity 111 from the air inlet 112, the volume of the diversion cavity 111 relative to the air inlet 112 is increased, the density of sound energy in the diversion cavity 111 is reduced, and the sound pressure level of noise is reduced. The flow guide cavity 111 can disturb the resonance and the waveform of the pulse in the air flow noise, reduce the pulse of high frequency in the noise, reduce the flow velocity of the air flow and reduce the noise generated in the air flow.
The noise reduction structure is arranged at the air inlet or the air outlet of the air compressor and comprises a shell and a baffle, wherein a flow guide cavity is formed in the shell, the baffle is arranged in the flow guide cavity, the connecting end of the baffle is connected with the shell, the suspended end of the baffle is spaced from the shell to form a channel for conducting gas, and the gas entering the flow guide cavity relieves the agitation frequency of the gas flow under the action of the baffle, so that the noise in the gas flow is reduced.
In some embodiments, as shown in fig. 2, the housing 11 includes oppositely disposed first and second sidewalls 115, 116; the housing 11 is composed of a plurality of walls to form the inner diversion cavity 111, and the first side wall 115 is relatively far away from the second side wall 116, and the shape of the housing 11 in the embodiment of the present invention may be various, for example, rectangular, circular, square, etc., and in the case that the housing 11 is configured as a rectangular shape, the first side wall 115 and the second side wall 116 may be two relatively parallel walls. Wherein, the baffle 12 is provided with a plurality of intervals, and the first side wall 115 and the second side wall 116 are alternately connected with the baffle 12. That is, the plurality of baffles 12 are arranged between the first side wall 115 and the second side wall 116 at intervals, and the plurality of baffles 12 are connected with the first side wall 115 and the second side wall 116 in turn. In the embodiment shown in fig. 2, two baffles 12, namely a first baffle 12a and a second baffle 12b, are disposed in the diversion cavity 111, the first baffle 12a is disposed near the air inlet 112, the first baffle 12a is connected to the second sidewall 116, and the second baffle 12b is connected to the second sidewall 116. It should be noted that the number of the baffles 12 is not limited in the embodiment of the present invention, and the specific number of the baffles 12 depends on the volume of the diversion cavity 111 and the actual application scenario.
According to the embodiment of the utility model, the baffle plates are alternately connected between the first side wall and the second side wall, so that the airflow forms a zigzag path in the flow guide cavity, the path can be similar to an S-shaped path, the flow speed of the air in the flow guide cavity is reduced, pulse signals in airflow noise are reduced, and the noise reduction effect of the noise reduction structure is improved.
In some embodiments, as shown in fig. 2, the baffles 12 extend along a first direction (the up-down direction shown in fig. 2), that is, the baffles 12 are substantially parallel in the first direction, and it should be noted that the substantially parallel indicates that an angle between the extending direction of the baffles 12 and the first direction is not strictly 0 degree, and it can be considered that an angle between the two directions is less than 10 degrees, that is, the two directions are substantially parallel, so that processing and installation errors can be covered. Adjacent baffles 12 partially overlap in a second direction (the left-right direction shown in fig. 2) that is perpendicular to the first direction. For example, the first baffle 12a and the second baffle 12b coincide in the second direction such that the passage 114 formed between each baffle 12 and the housing 11 has a curved shape. According to the embodiment of the utility model, the baffle plates are partially overlapped in the second direction, so that the airflow is not directly led out from the air outlet after passing through the air inlet, but sequentially passes through the channels at different positions in the first direction, the flow path of the airflow is prolonged, the pulse signals in the noise of the airflow are reduced, the high-frequency pulses in the noise are reduced, and the noise generated by the airflow is reduced.
In some embodiments, as shown in fig. 2, the first side wall 115 and the second side wall 116 both extend in the second direction (the left-right direction shown in fig. 2), and the ratio of the extension length L1 of the baffle 12 to the distance L2 between the first side wall 115 and the second side wall 116 is greater than 0.5 and less than or equal to 0.9. In the case where the baffle plate 12 has a plurality of baffle plates, the extension lengths of the baffle plates of the respective baffle plates 12 may be the same or different, as long as the extension length L1 of each baffle plate 12 satisfies the above ratio relationship. The baffles 12 extend along a first direction, the first side wall 115 and the second side wall 116 both extend along a second direction, and the first direction is perpendicular to the second direction, so that the baffles 12 are perpendicular to the first side wall 115 and the second side wall 116, in the embodiment of the present invention, the extension length of each baffle 12 in the first direction is equal, and the extension length of the baffle 12 in the first direction is L1, and by setting the ratio of the extension length of the baffle to the distance between the first side wall and the second side wall to be greater than 0.5 and less than or equal to 0.9, the baffles can be overlapped in the second direction, so that the baffles can disturb the airflow, and a certain gap is provided between the free end of the baffle and the shell for the airflow to be conducted.
In some embodiments, as shown in fig. 2, the air inlet 112 and the air outlet 113 are respectively disposed at opposite ends of the housing 11 in the second direction. It should be noted that the air inlet 112 and the air outlet 113 may be disposed on two end walls of the housing 11 disposed opposite to each other in the second direction, and the air inlet 112 and the air outlet 113 may not be disposed on the two opposite end walls, for example, in the embodiment shown in fig. 2, the air inlet 112 is disposed on the end wall on one side (right side in fig. 2) of the second direction, the air outlet 113 is disposed on the first side wall 115, and the air outlet 113 is disposed on one end (upper left end in fig. 2) of the first side wall 115 far from the air inlet 112, as long as the air inlet 112 and the air outlet 113 are disposed on two ends of the housing 11 relatively far from each other in the second direction. According to the embodiment of the utility model, the air inlet and the air outlet are arranged at the two opposite ends of the shell in the second direction, so that the length of the flow path of the air flow can be increased under the condition that the volume and the length of the flow guide cavity are fixed, the flow process of the air flow is prolonged, and the noise reduction effect of the flow guide cavity is improved.
In some embodiments, as shown in fig. 2, the gas inlet 112 extends along the second direction, and the gas inlet 112 represents a pipe with a certain extending length, and the extending direction of the gas inlet 112 can affect the flowing direction of the gas introduced into the diversion cavity 111, that is, in the embodiment shown in fig. 2, the gas flowing into the diversion cavity from the gas inlet flows towards the second direction.
In some embodiments, as shown in fig. 2, the plurality of baffles 12 includes a first baffle 12a adjacent to the air inlet 112 in the second direction (the left-right direction shown in fig. 2), and a region between the free end 122 of the first baffle 12a and the housing 11 and the air inlet 112 are spaced apart in the first direction (the up-down direction shown in fig. 2). That is to say, the gas flowing in from the gas inlet 112 originally flows in from the second direction (leftward in fig. 2), and the gas entering the diversion cavity is blocked by the first baffle plate, so that the flowing direction of the gas is changed, and the gas flow needs to flow to the passage between the first baffle plate and the housing, thereby extending the flowing path of the gas flow, dissipating the sound energy in the gas noise, and relieving the pulse of the gas flow in the cavity, thereby reducing the noise.
In some embodiments, as shown in FIG. 2, air outlet 113 extends in a first direction. Gas outlet 113 represents a pipe having an extended length, and the extending direction of gas outlet 113 may affect the direction of gas guiding out from flow guiding chamber 111, that is, in the embodiment shown in fig. 2, gas outlet 113 guides gas out from flow guiding chamber to flow in the first direction.
In some embodiments, the plurality of baffle plates 12 includes a second baffle plate 12b adjacent to the air outlet 113 in the second direction, and a region between the free end 122 of the second baffle plate 12b and the housing 11 and the air outlet 113 are spaced apart in the first direction (up-down direction shown in fig. 2). That is, the gas flowing out of the channel 114 between the second baffle 12b and the housing 11 cannot directly flow out of the diversion cavity 111, but the flowing direction of the gas is changed, so that the gas flows out of the diversion cavity 111 after bypassing the spaced gas outlets 113, thereby prolonging the flowing path of the gas flow, dissipating the sound energy in the gas noise, and relieving the pulse of the gas flow in the cavity, thereby reducing the noise.
As shown in fig. 3, an embodiment of the present invention further provides a negative oxygen ion generating apparatus, which includes an air compressor 2, a negative oxygen ion generator 3, and the noise reduction structure 1 according to any of the above embodiments. The air compressor 2 is used to generate compressed air. The negative oxygen ion generator 3 has a container 31 for containing liquid, an air inlet pipe 32 inserted into the container 31, and an air outlet pipe 33 communicated with the container 31; the intake pipe 32 communicates with the outlet of the air compressor 2; wherein, the inlet or the outlet of the air compressor 2 is provided with the noise reduction structure 1. That is, the noise reduction structure 1 may be used to reduce the noise of the gas entering the air compressor 2, and the noise reduction structure 1 may also be used to reduce the noise generated after the compression by the air compressor 2. According to the embodiment of the utility model, the noise reduction structure is applied to the negative oxygen ion generating equipment, so that the noise generated in the negative oxygen ion generating equipment can be reduced, and the comfort level of user experience is improved.
In some embodiments, as shown in fig. 3, the negative oxygen ion generating device further comprises a coil 4. The coil 4 is communicated with the air outlet 113 of the noise reduction structure 1 and the air inlet pipe 32 of the negative oxygen ion generator 3, and the coil 4 is spirally arranged in a surrounding manner. The air current is at 4 in-process through helical shape coil pipe, and the inner wall of coil pipe 4 can produce certain resistance to air current for the amplitude of air current noise reduces, and the frequency reduces, and the 4 inner walls of coil pipe have absorbed the noise of pulsed, form gentle air current, thereby reduced the noise in the gas.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. A noise reducing structure for an air compressor, comprising:
the shell is internally provided with a flow guide cavity, the shell is provided with an air inlet and an air outlet which are communicated with the flow guide cavity, and the air inlet or the air outlet is communicated with the air compressor;
the baffle sets up the water conservancy diversion intracavity, the baffle has relative both ends in extending direction, and wherein one end is the link, and the other end is the free end, the link with the casing is connected, the free end with the casing interval sets up to form the passageway that is used for switching on gas.
2. The noise reducing structure of claim 1, wherein the housing includes first and second oppositely disposed sidewalls; the baffle plates are arranged in a plurality at intervals, and the first side wall and the second side wall are alternately connected with the baffle plates.
3. The noise reduction structure of claim 2, wherein the plurality of baffles each extend in a first direction, adjacent baffles being partially coincident in a second direction, the second direction being perpendicular to the first direction.
4. The noise reduction structure according to claim 3, wherein the first side wall and the second side wall each extend in the second direction, and a ratio of an extension length of the baffle to a distance between the first side wall and the second side wall is greater than 0.5 and less than or equal to 0.9.
5. The noise reduction structure according to claim 4, wherein the air inlet and the air outlet are provided at opposite ends of the housing in the second direction, respectively.
6. Noise reduction structure according to claim 5, wherein the air inlet extends in the second direction and/or the air outlet extends in the first direction.
7. Noise reducing structure according to claim 6,
the plurality of baffles include a first baffle adjacent to the air inlet in the second direction, and a region between a free end of the first baffle and the housing and the air inlet are spaced apart in the first direction.
8. The noise reducing structure of claim 6, wherein the plurality of baffles includes a second baffle adjacent the air outlet in the second direction, and a region between a free end of the second baffle and the housing and the air outlet are spaced apart in the first direction.
9. An oxygen anion generating apparatus, comprising:
an air compressor for generating compressed air;
the negative oxygen ion generator is provided with a container for containing liquid, an air inlet pipe inserted into the container and an air outlet pipe communicated with the container; the air inlet pipe is communicated with an outlet of the air compressor;
wherein an inlet or an outlet of the air compressor is provided with a noise reducing structure according to any of claims 1-8.
10. The negative oxygen ion generating apparatus according to claim 9, further comprising:
the coil pipe, the coil pipe intercommunication the gas outlet of structure of making an uproar with negative oxygen ion generator the intake pipe, just the coil pipe is the heliciform and encircles the setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122515453.6U CN216306165U (en) | 2021-10-19 | 2021-10-19 | Noise reduction structure for air compressor and negative oxygen ion generator equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122515453.6U CN216306165U (en) | 2021-10-19 | 2021-10-19 | Noise reduction structure for air compressor and negative oxygen ion generator equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216306165U true CN216306165U (en) | 2022-04-15 |
Family
ID=81115391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122515453.6U Active CN216306165U (en) | 2021-10-19 | 2021-10-19 | Noise reduction structure for air compressor and negative oxygen ion generator equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216306165U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115046127A (en) * | 2022-06-24 | 2022-09-13 | 江苏南大光电材料股份有限公司 | Steel cylinder structure for supplying solid compound |
-
2021
- 2021-10-19 CN CN202122515453.6U patent/CN216306165U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115046127A (en) * | 2022-06-24 | 2022-09-13 | 江苏南大光电材料股份有限公司 | Steel cylinder structure for supplying solid compound |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216306165U (en) | Noise reduction structure for air compressor and negative oxygen ion generator equipment | |
| CN105134349A (en) | Exhaust gas disposal device | |
| CN108645248A (en) | A kind of volumetric heat exchanger and its working method of self-pulsating enhanced heat exchange | |
| CN204646380U (en) | Two-layer hybrid pipe and exhaust gas treatment device thereof | |
| CN204485604U (en) | A kind of muffler of absorption drier | |
| CN217068807U (en) | Gas generating device | |
| CN205613285U (en) | RO membrane filter core | |
| CN209952609U (en) | Microbubble generator and washing device | |
| CN209952608U (en) | Microbubble generator and washing device | |
| CN109488485B (en) | Supersonic mixing reinforced structure with adjustable frequency characteristic and rocket-based combined engine | |
| RU2309340C2 (en) | Apparatus for converting kinetic energy of liquid flow to heat | |
| CN204877616U (en) | Exhaust treatment appts | |
| KR102352057B1 (en) | Cooling-water heater | |
| CN216598399U (en) | Airflow dispersing device and negative oxygen ion generating device | |
| KR20110062363A (en) | Material-based hydrogen storage system for a vehicle | |
| CN202787260U (en) | Cylinder type diesel pile hammer capable of carrying out forced cooling | |
| CN104088698A (en) | Silent diesel generator set structure | |
| CN217270838U (en) | Roots blower silencer | |
| CN203669963U (en) | Rear muffler assembly | |
| CN205613204U (en) | Novel air purifier | |
| CN202523969U (en) | Gas laser | |
| CN111659273A (en) | Microbubble generator and washing device | |
| CN203926826U (en) | Water Proportional valve for gas water-heater | |
| CN116632661B (en) | Negative oxygen ion generator | |
| CN218442220U (en) | Overheat steam generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |