CN217813810U - Box evacuating device and fluid system - Google Patents
Box evacuating device and fluid system Download PDFInfo
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- CN217813810U CN217813810U CN202221074875.2U CN202221074875U CN217813810U CN 217813810 U CN217813810 U CN 217813810U CN 202221074875 U CN202221074875 U CN 202221074875U CN 217813810 U CN217813810 U CN 217813810U
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- vacuum generator
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- pressure measuring
- vacuum
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Abstract
The embodiment of the application provides a box body vacuumizing device and a fluid system, and relates to the technical field of mechanical engineering, wherein the device mainly comprises a vacuum generator, a one-way fluid control structure and a pressure measuring device; one end of the vacuum generator is provided with a one-way fluid control structure, the bottom of the vacuum generator is provided with a pressure measuring structure, and a box body interface is arranged below the pressure measuring structure. The embodiment of the application prevents that liquid from leaking outward for the negative pressure is taken out to box upper portion space through the outside compressed air and the vacuum generator that produce of device. The use of this device will further shorten the working time of field maintenance, promote work efficiency, reduce working strength to stronger flexibility and commonality have.
Description
Technical Field
The application relates to the technical field of mechanical engineering, in particular to a box body vacuumizing device and a fluid system.
Background
The vacuum generator is a novel, efficient, clean, economic and small vacuum component which utilizes a positive pressure air source to generate negative pressure, and the vacuum generator is widely applied to devices such as various non-metallic materials adsorption, carrying and the like.
In the prior art, a hydraulic oil tank is taken as an example. When connecting pipelines and elements of an open oil tank commonly used by a hydraulic system need to be maintained, under the unnecessary condition, oil in the oil tank is generally not discharged, so that the leakage of oil is inevitable during maintenance, the leaked oil is generally difficult to recycle, the maintenance cost is improved, the environment is also polluted, and the maintenance efficiency is also influenced. If oil is firstly discharged and then added, the time and the labor are wasted, and secondary pollution is easily caused to the oil liquid in the oil discharging process.
Disclosure of Invention
In order to solve one of the above technical drawbacks, an embodiment of the present application provides a tank vacuum-pumping device and a fluid system.
According to a first aspect of embodiments of the present application, there is provided a tank vacuumizing apparatus including a vacuum generator; one end of the vacuum generator is provided with a one-way fluid control structure, the bottom of the vacuum generator is provided with a pressure measuring structure, and a box body interface is arranged below the pressure measuring structure.
According to the box body vacuumizing device, one end of the vacuum generator, which is far away from the one-way fluid control structure, is also provided with the silencing structure.
According to the box body vacuumizing device, one end, far away from the vacuum generator, of the pressure measuring structure is fixedly connected with the box body interface.
According to the tank body vacuumizing device, the one-way fluid control structure is a one-way throttle valve.
Furthermore, connecting pipe fittings are arranged between the vacuum generator and the one-way fluid control structure, between the vacuum generator and the pressure measuring structure, between the pressure measuring structure and the box body interface, and between the vacuum generator and the silencing structure.
The one-way fluid control structure includes a one-way throttle valve for air flow regulation.
The noise reduction structure comprises a silencer, and the silencer is used for eliminating air noise.
The pressure measuring structure comprises a vacuum gauge, and the vacuum gauge is used for measuring and indicating the pressure in the pressure product.
The tank body interface is an oil tank interface.
According to the box body vacuumizing device, the connecting pipe fitting is provided with the sealing thread, and the locking thread is arranged outside the sealing thread.
In a second aspect of the embodiments of the present application, there is provided a method for using a fluid system, including: and the tank body is used for containing liquid fluid, and the top of the tank body is connected with the tank body vacuumizing device.
The vacuum-pumping device for the box body is applied to a fluid system which takes fluid as a medium to work circularly. When the pipeline overhauls, prevent that liquid from leaking outward through taking out oil tank upper portion space for the negative pressure, conveniently maintain being less than the pipeline and the device of oil tank. The application of the device further shortens the labor time, improves the working efficiency, reduces the working intensity, reduces the maintenance cost and reduces the pollution to the environment.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic view of an overall structure of a box body vacuumizing device provided in an embodiment of the present application.
Fig. 2 is a schematic diagram of a principle of a box body vacuumizing device provided by the embodiment of the application.
Reference numerals: the device comprises a one-way throttle valve 1, a vacuum generator 2, a silencer 3, a vacuum gauge 4 and an oil tank interface 5.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the course of carrying out the present application, the inventors have found that the prior art devices are complicated to operate and are too large.
In view of the above problems, the embodiments of the present application provide a vacuum pumping apparatus for a tank, where the tank may contain a liquid medium, such as: the present embodiment will be described by taking an example of a tank for containing a liquid medium such as an oil medium or an aqueous medium.
Fig. 1 is a schematic view of an overall structure of a box body vacuumizing device provided in an embodiment of the present application, and fig. 2 is a schematic view of a principle of the box body vacuumizing device provided in the embodiment of the present application. As shown in figures 1 and 2 of the drawings,
the box body vacuumizing device comprises a vacuum generator 2. One end of the vacuum generator 2 is provided with a one-way fluid control structure, the bottom of the vacuum generator 2 is provided with a pressure measuring structure, and a box body interface is arranged below the pressure measuring structure.
The tank body interface is used for being connected with the top of the oil tank, and the vacuum generator can pump out air on the upper portion of the oil tank to enable the upper portion of the oil tank to keep a certain vacuum degree.
In the actual engineering, the part pipeline height is less than the oil tank, when this part pipeline of maintenance, often need empty with the oil in the oil tank, just can maintain, otherwise can lead to a large amount of fluid to flow from the oil tank connecting pipe, it is comparatively consuming time work to manage to find time with fluid in the oil tank, through using this device, be connected the box interface and the box of the device bottom, manage to find time the air on oil tank upper portion through vacuum generator, form the negative pressure between fluid and box top, make fluid can't follow the outflow of oil tank lower part, reach the mesh that prevents that liquid from leaking outward in the box when the pipeline maintenance.
Furthermore, a silencing structure is arranged at one end of the vacuum generator 2 far away from the one-way fluid control structure, and is used for eliminating and reducing noise generated in the operation of the device. The silencing structure is specifically a silencer.
One end of the pressure measuring structure far away from the vacuum generator 2 is fixedly connected with the tank body interface, for example, an oil tank interface is arranged for connecting with an oil tank.
The pressure measuring structure can be a pressure sensor or a vacuum meter 4 and is used for detecting the pressure in a pipeline between the vacuum generator and the box body. When the vacuum gauge 4 is adopted, an operator can visually observe the pressure, and when the vacuum degree in the box body is too high, the flow of compressed air is timely reduced through the one-way throttle valve, so that the deformation caused by the too high vacuum degree in the box body is avoided.
The one-way fluid control structure is specifically a one-way throttle valve 1, and ensures one-way flow of liquid.
And connecting pipe fittings are arranged between the vacuum generator 2 and the one-way fluid control structure, between the vacuum generator 2 and the pressure measuring structure and between the pressure measuring structure and the box body interface. The connecting pipe fitting is provided with a sealing thread, a locking screw is arranged outside the sealing thread, and the connecting pipe fitting is connected in a thread fastening mode.
The specific principle is as follows:
from fluid dynamics, the equation of continuity for an incompressible gas (a gas that travels at low speeds, can be considered approximately as an incompressible gas) is:
A 1 V 1 ＝A 2 V 2
in the formula: a. The 1 ，A 2 The cross-sectional area of the pipe, m 2
V 1 ，V 2 -flow velocity of gas stream, m/s
From the above formula, the cross section is increased and the flow velocity is reduced; the cross-section decreases and the flow velocity increases.
For horizontal piping, the Bernoulli ideal energy equation for incompressible air is
In the formula: p 1 ，P 2 Section A 1 ，A 2 At a corresponding pressure, pa
V 1 ，V 2 Section A 1 ，A 2 Flow velocity of air stream, m/s
Rho-density of gas, kg/m 3
From the above formula, the flow rate increases and the pressure decreases when V 2 >V 1 When is, P 1 >P 2 . When V is 2 When increasing to a certain value, P 2 The negative pressure is generated when the pressure is less than one atmosphere, so that the flow rate can be used for obtaining the negative pressure to generate suction force to evacuate the air on the upper part of the oil tank. The working principle of the application is as follows: the device is arranged on an oil tank, compressed air flows out of the device from the silencer after passing through the vacuum generator, and in the process of flowing through the vacuum generator, air at the upper part of the oil tank is gradually sucked to be emptied according to the principle, so that the air and the compressed air are discharged out of the device together, negative pressure is formed at the upper part of the oil tank, and oil cannot flow out of the bottom of the oil tank.
A specific implementation manner is as follows: the apparatus comprises a vacuum generator 2; the both ends of vacuum generator 2 are provided with one-way choke valve 1 and muffler 3 through the connecting pipe, and the connecting pipe sets up a plurality ofly, and vacuum generator 2's bottom is provided with vacuum meter 4 through the connecting pipe, and vacuum meter 4's one end is passed through connecting pipe and 5 fixed connection of oil tank interface. The direction indicated by the arrow S1 in fig. 2 is the flow direction of the compressed air, the direction indicated by the arrow S2 is the air flow direction, and the direction indicated by the arrow S3 is the air flow direction in the tank.
In actual use, because complete sealing with the box body cannot be achieved, the device needs to work all the time, so the vacuum degree in the oil tank needs to be controlled through the combination of the throttle valve and the vacuum meter, the deformation of the box body caused by overhigh vacuum degree is prevented, the throttle valve controls the air flow, the vacuum meter is used for displaying the vacuum degree in the box body, and in consideration of the fact that the device can generate large noise all the time, the silencer is particularly added at an air outlet, the noise is reduced, and the use environment is improved.
The present embodiments also provide a fluid system, comprising: the tank body is used for containing liquid fluid, and the top of the tank body is connected with a tank body vacuumizing device. The gas on the upper part of the box body is pumped out through the vacuumizing device, so that negative pressure is formed on the upper part of the box body, oil cannot leak from the bottom of the oil tank, the box body or a pipeline is convenient to maintain, the labor time is shortened, the working efficiency is improved, and the working intensity is also reduced.
In the description of the present application, 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", etc. indicate orientations or positional relationships based on those shown in the drawings, merely 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 thus, should not be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; may be mechanically, electrically or otherwise in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. The utility model provides a box evacuating device, includes vacuum generator (2), its characterized in that, the one end of vacuum generator (2) is provided with one-way fluid control structure, the bottom of vacuum generator (2) is provided with the pressure measurement structure, the pressure measurement structure has the box interface.
2. The box body vacuumizing device according to claim 1, wherein a silencing structure is further disposed at an end of the vacuum generator (2) away from the one-way fluid control structure.
3. The box body vacuumizing device according to claim 1, wherein one end of the pressure measuring structure, which is far away from the vacuum generator (2), is fixedly connected with the box body interface.
4. A tank evacuation system as claimed in claim 1, wherein the one-way flow control arrangement is a one-way throttle valve (1).
5. A vacuum pumping apparatus for a box body according to claim 1, wherein the pressure measuring structure is a vacuum gauge (4).
6. The box body vacuumizing device according to claim 1, wherein connecting pipe fittings are arranged between the vacuum generator (2) and the one-way fluid control structure, between the vacuum generator (2) and the pressure measuring structure, and between the pressure measuring structure and a box body interface.
7. A tank evacuation device as claimed in claim 1, wherein the tank port is a tank port (5).
8. A tank evacuation device according to claim 2, characterised in that the sound-attenuating structure is a sound-attenuator (3).
9. The vacuum pumping device for the box body as claimed in claim 6, wherein the connecting pipe is provided with a sealing thread, and a locking screw is arranged outside the sealing thread.
10. A fluid system, comprising: tank for containing a liquid fluid, the top of which is connected to a tank evacuation device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221074875.2U CN217813810U (en) | 2022-05-07 | 2022-05-07 | Box evacuating device and fluid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221074875.2U CN217813810U (en) | 2022-05-07 | 2022-05-07 | Box evacuating device and fluid system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217813810U true CN217813810U (en) | 2022-11-15 |
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ID=83981158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221074875.2U Active CN217813810U (en) | 2022-05-07 | 2022-05-07 | Box evacuating device and fluid system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217813810U (en) |
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2022
- 2022-05-07 CN CN202221074875.2U patent/CN217813810U/en active Active
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