CN216922417U - Small-size oil-free vacuum integrated system - Google Patents

Abstract

The utility model discloses a small-sized oil-free vacuum integrated system, which comprises: a vacuum pump; the buffer tank is arranged at the bottom of the vacuum pump; the connecting pipe is connected between the pump port at the top of the vacuum pump and the buffer tank; the air port is formed in the buffer tank and is used for being communicated with external equipment; a control cabinet for controlling the vacuum pump; the buffer tank is including setting up an inclined plane at its tank bottoms to and set up the turnover structure of inclined plane bottom, the feed liquor one side of turnover structure with the inclined plane meets, goes out liquid one side and communicates with each other through buffer tank and external filter, through the difference in height that utilizes buffer tank and connecting pipe, moisture content and condensation gas that can the filter segment brought from the gas in the plastic envelope position avoid in moisture content or condensation gas gets into the vacuum, reduce the influence of dust and moisture content to the vacuum pump, even have the part to rise to the top, also can fall back to the bottom of buffer tank.

Description

Small-size oil-free vacuum integrated system

Technical Field

The utility model relates to a vacuum integrated system, in particular to a small-sized oil-free vacuum integrated system.

Background

The existing material needs to utilize a vacuum pump to pump out air in a plastic packaging bag when plastic packaging is carried out, namely, a degassing process, the process is usually simple, most methods are carried out by utilizing a vacuum generator, and the vacuum generator is directly connected with the bag needing to be pumped.

However, the above method has the following problems:

condensed gas or moisture may exist in the plastic packaging bag to be vacuumized, and if the condensed gas or the moisture enters the vacuum pump along with the evacuated gas, the influence on the vacuum pump is easily generated, and the moisture is difficult to block and discharge only by the conventional buffer tank.

SUMMERY OF THE UTILITY MODEL

The utility model provides a small-sized oil-free vacuum integrated system which can effectively solve the problems.

The utility model is realized by the following steps:

a compact oil-free vacuum integrated system comprising:

a vacuum pump;

the buffer tank is arranged at the bottom of the vacuum pump;

the connecting pipe is connected between the pump port at the top of the vacuum pump and the buffer tank;

the air port is formed in the buffer tank and is used for being communicated with external equipment;

a control cabinet for controlling the vacuum pump;

the buffer tank comprises an inclined plane arranged at the bottom of the buffer tank, an

The turnover structure is arranged at the bottom end of the inclined plane, one side of the turnover structure for liquid inlet is connected with the inclined plane, and one side of the turnover structure for liquid outlet is communicated with an external filter through a buffer tank.

As a further improvement, the revolving structure includes a first chamber communicated with the buffer tank, a second chamber connected to one side of the first chamber far away from the buffer tank and communicated with an external filter, a first separation layer arranged between the first chamber and the buffer tank, a second separation layer arranged between the first chamber and the second chamber, a third separation layer arranged between the second chamber and the external filter, and a push rod motor controlling the lifting states of the first separation layer, the second separation layer and the third separation layer.

As a further improvement, an air release valve is connected in the buffer tank.

As a further improvement, a pressure gauge is further arranged on the air release valve and is connected into the buffer tank.

As a further improvement, the pump opening of the vacuum pump is provided with a dust filter.

As a further improvement, a manual valve is arranged between the dust filter and the vacuum pump.

The utility model has the beneficial effects that:

according to the utility model, by utilizing the height difference between the buffer tank and the connecting pipe, moisture and condensed gas brought by gas in the plastic package position can be partially filtered, so that the moisture or the condensed gas is prevented from entering vacuum, the influence of dust and moisture on the vacuum pump is reduced, and even if part of the moisture rises to the topmost end, the moisture can fall back to the bottom of the buffer tank.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a small oil-free vacuum integrated system according to the present invention.

Fig. 2 is a schematic side view of a small oil-free vacuum integrated system according to the present invention.

Fig. 3 is a schematic view of the internal structure of a surge tank of the present invention.

Fig. 4 is a schematic structural diagram of a revolving structure of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any 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 invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-4, a small oil-free vacuum integrated system includes: a vacuum pump 1; a buffer tank 3 arranged at the bottom of the vacuum pump 1; the connecting pipe 2 is connected between a pump port at the top of the vacuum pump 1 and the buffer tank 3; an air port 4 which is arranged on the buffer tank 3 and is used for being communicated with external equipment; a control cabinet 5 for controlling the vacuum pump 1; buffer tank 3 is including setting up an inclined plane 31 at its tank bottoms to and set up the turnover structure 32 of inclined plane 31 bottom, the feed liquor one side of turnover structure 32 with inclined plane 31 meets, goes out liquid one side and communicates with each other with the external filter through buffer tank 3.

When using, connect gas port 4 together with the opening of plastic packaging sack, seal the hookup location of the two, then open vacuum pump 1, make vacuum pump 1 carry out the evacuation processing in to the plastic packaging sack, at the in-process of extraction, the inside steam of plastic packaging sack or moisture content can flow into buffer tank 3 together, flow to connecting pipe 2 along buffer tank 3 on, finally because the difference in height between connecting pipe 2 and the buffer tank 3 falls back to in the buffer tank 3.

However, if moisture or water vapor is accumulated in the buffer tank 3, a part of the moisture or water vapor is filled into the vacuum pump 1 in time after reaching a certain amount, so that the bottom of the buffer tank 3 is provided with an inclined surface, the initial end of the inclined surface is arranged below the projection position of the air port 4, and the projection position of the connecting pipe 2 is located at the midpoint of the inclined surface, so that the dropped moisture can be transmitted to the circulating structure 32 and discharged through the circulating structure 32.

The following problems are encountered in the discharge through the epicyclic 32: if directly discharge, then be difficult to guarantee the vacuum degree of buffer tank 3 itself, have outside gas to gush in at the in-process of evacuation, if not directly discharge, wait to after the evacuation process, then probably lead to the storage space of buffer tank 3 inside not enough, if only increase buffer tank 3 volume alone, let the whole system become extremely bloated when increase cost.

Therefore, in order to solve the above problems, the revolving structure 32 includes a first chamber 321 communicating with the buffer tank 3, a second chamber 322 connected to a side of the first chamber 321 away from the buffer tank 3 and communicating with an external filter, a first partition 323 disposed between the first chamber 321 and the buffer tank 3, a second partition 324 disposed between the first chamber 321 and the second chamber 322, a third partition 325 disposed between the second chamber 322 and the external filter, and a push rod motor 326 controlling a lifting state of the first partition 323, the second partition 324, and the third partition 325.

Firstly, the two chambers are divided into an inner first chamber 321 and an outer second chamber 322, and three separation layers are arranged between the two chambers, when the exhaust and drainage are required, the first separation layer 323 and the second separation layer 324 can be opened by retracting the push rod motor 326 inwards, so that the fluid flows into the first chamber 321 and the second chamber 322 along with the inclined plane 31, then the first separation layer 323 is closed, the third separation layer 325 is opened, all the fluid is drained, and at the moment, due to the blocking, the external environment is not communicated with the buffer tank 3, and the vacuum degree of the buffer tank is not influenced.

On the basis of the above, if the safety is improved, when the buffer tank is opened for the first time, only the first partition 323 is opened, the fluid is firstly allowed to enter the first chamber 321, then the first partition 323 is closed, the second partition 324 is opened, the fluid is allowed to enter the second chamber 322, then the second partition 324 is closed, and the third partition 325 is opened, so that the fluid is led out to the outside, thereby forming two blocking measures and protecting the closed environment of the buffer tank 3.

The push rod motors 326 are arranged corresponding to the number of the separation layers, the first separation layer 323, the second separation layer 324 and the third separation layer 325 are respectively fixed on the push rods of the three push rod motors 326, and the running state of the push rod motors 326 is controlled through the control cabinet 5, so that the separation layers can be matched with one another.

Preferably, the control cabinet 5 adopts a PLC control device, can be programmed in advance, and is a prior art with respect to a programming principle and a button control principle by matching a program with a manual control device, which is not described in detail herein.

In order to better facilitate the fluid conduction, the slope of the slope 31 is directed toward the revolving structure 32, so that the fluid possibly present in the buffer tank 3 can be quickly and without a margin led out.

In the embodiment, the vacuum generator for conventional vacuum pumping is replaced by the vacuum pump, so that the vacuum pumping effect is better.

And in order to improve the safety factor of the buffer tank 3, a gas release valve 6 is connected in the buffer tank 3.

In order to further monitor the pressure change in the buffer tank 3, the vent valve 6 is further provided with a pressure gauge, the pressure gauge is connected into the buffer tank 3, what needs to be emphasized here is that the pressure change in the buffer tank 3 is the pressure change in the equipment, namely the pressure change in the plastic packaging bag to be vacuumized, whether the vacuum degree in the plastic packaging bag meets the requirement can be judged according to the pressure gauge change in the buffer tank 3, the equipment can be closed after meeting the requirement, and the resource waste is avoided.

In the embodiment, a dust filter 7 is installed at the inlet of the vacuum pump 1, and dust brought from the plastic packaging bag to be pumped is greatly filtered.

In order to ensure safety after accidents or shutdown, a manual valve is also arranged between the dust filter 7 and the vacuum pump 1, so that the vacuum pump 1 can be protected by manual intervention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A small oil-free vacuum integrated system, comprising:

a vacuum pump (1);

a buffer tank (3) arranged at the bottom of the vacuum pump (1);

the connecting pipe (2) is connected between a pump port at the top of the vacuum pump (1) and the buffer tank (3);

the air port (4) is formed in the buffer tank (3) and is used for being communicated with external equipment;

a control cabinet (5) for controlling the vacuum pump (1);

the buffer tank (3) comprises a bevel (31) arranged at the bottom of the buffer tank, and

the turnover structure (32) is arranged at the bottom end of the inclined plane (31), one liquid inlet side of the turnover structure (32) is connected with the inclined plane (31), and one liquid outlet side is communicated with an external filter through the buffer tank (3).

2. A small oil-free vacuum integrated system according to claim 1, wherein the revolving structure (32) comprises a first chamber (321) communicating with the buffer tank (3), a second chamber (322) connected to a side of the first chamber (321) remote from the buffer tank (3) and communicating with an external filter, a first separation layer (323) disposed between the first chamber (321) and the buffer tank (3), a second separation layer (324) disposed between the first chamber (321) and the second chamber (322), a third separation layer (325) disposed between the second chamber (322) and the external filter, and a push rod motor (326) controlling a lifting state of the first separation layer (323), the second separation layer (324), and the third separation layer (325).

3. A small oil-free vacuum integrated system as claimed in claim 1, wherein the buffer tank (3) is further connected with a relief valve (6).

4. A small-sized oil-free vacuum integrated system as claimed in claim 3, wherein the relief valve (6) is further provided with a pressure gauge, and the pressure gauge is connected into the buffer tank (3).

5. A small oil-free vacuum integrated system as claimed in claim 1, wherein the pump port of the vacuum pump (1) is provided with a dust filter (7).

6. A small oil-free vacuum integrated system as claimed in claim 5, wherein a manual valve is further provided between the dust filter (7) and the vacuum pump (1).

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