CN219922351U - Vacuum-pumping anti-suck-back device - Google Patents

Abstract

The utility model relates to a vacuumizing anti-suck-back device, which belongs to the technical field of vacuumizing of glue making machines and comprises a shell, wherein an air inlet and an air outlet positioned above the air inlet are arranged on the shell; and the flow blocking assembly is arranged in the shell, and a variable cross-section annular flow blocking surface which passes through gas and prevents liquid and solid is formed in a protruding mode towards the air inlet direction. When the vacuum filter vacuumizes the glue making machine after the stirring process, the gas mixed with liquid drops or solid particles in the glue making machine is pumped out and passes through the shell, so that the liquid drops or solid particles entrained in the gas can be captured by the variable-section annular baffle surface on the baffle component in the shell by utilizing the inertial collision effect, and then the amount of the liquid drops or solid particles entering the vacuum filter along the inner wall of the pipeline is reduced, so that the cleaning frequency of the vacuum filter and the replacement frequency of the filter element can be reduced, the equipment maintenance cost is reduced, the time is saved, and the efficiency is improved.

Description

Vacuum-pumping anti-suck-back device

Technical Field

The utility model relates to the technical field of vacuumizing of glue making machines, in particular to a vacuumizing anti-suck-back device.

Background

The glue making machine is one kind of equipment suitable for mixing, reacting, dissolving, dispersing, etc. in chemical, light industry, food, building material, etc.

In the related art, liquid drops or solid particles can be mixed in air in the glue making machine after the stirring process, and the air mixed with the liquid drops or the solid particles can be sucked into a vacuum pipeline during the vacuumizing process and intercepted at a vacuum filter, so that the vacuum filter is frequently cleaned, and meanwhile, a filter element is frequently replaced, so that the equipment maintenance cost is increased, and the production efficiency is influenced.

Therefore, it is necessary to design a vacuum anti-suck-back device to overcome the above problems.

Disclosure of Invention

The embodiment of the utility model provides a vacuum pumping anti-suck-back device, which is used for solving the problems that in the prior art, liquid drops or solid particles are mixed in air in a glue making machine after a stirring process, and the air mixed with the liquid drops or the solid particles is sucked into a vacuum pipeline and intercepted at a vacuum filter during the vacuum pumping process, so that the vacuum filter is frequently cleaned and a filter element is frequently replaced.

The embodiment of the utility model provides a vacuum pumping anti-suck-back device, which comprises:

a housing provided with an air inlet and an air outlet above the air inlet;

and the flow blocking assembly is arranged in the shell, and a variable cross-section annular flow blocking surface which passes through gas and prevents liquid and solid is formed in a protruding mode towards the air inlet direction.

In some embodiments, the baffle assembly includes a first baffle member protruding toward the air inlet to form a variable cross-section annular baffle surface for passing air and preventing liquid and solid, and a first through hole is formed at one end of the first baffle member adjacent to the air inlet.

In some embodiments, the first baffle member has an outwardly projecting radially enlarged flange at the first through hole, the flange having an annular shape.

In some embodiments, the flow blocking assembly further includes a second flow blocking member, the second flow blocking member protrudes toward the air inlet to form a variable cross-section annular flow blocking surface for passing the air and blocking the liquid and the solid, and a plurality of second through holes are formed in the second flow blocking member.

In some embodiments, the first and second through holes do not overlap in an axial projection direction.

In some embodiments, the variable cross-section annular baffle surface is a conical surface or a spherical surface.

In some embodiments, the second baffle is proximate to the air outlet of the housing and the first baffle is proximate to the air inlet of the housing.

In some embodiments, the housing includes a plurality of tubes that are in bottom-up communication and are detachable from one another.

In some embodiments, the first baffle and the second baffle are located in different or the same tube;

when the first flow blocking piece and the second flow blocking piece are positioned in different pipe bodies, the first flow blocking piece and the second flow blocking piece are fixedly or detachably connected with the pipe bodies;

when the first flow blocking piece and the second flow blocking piece are positioned in the same pipe body, the first flow blocking piece and the second flow blocking piece are detachably connected with the pipe body.

In some embodiments, a sealing ring is arranged between two adjacent pipe bodies, the two adjacent pipe bodies are fixedly connected through a clamp, and the air inlet end and the air outlet end of the shell are both provided with quick connectors.

The technical scheme provided by the utility model has the beneficial effects that:

the embodiment of the utility model provides a vacuum pumping anti-suck-back device, which is characterized in that an air inlet and an air outlet are arranged on a shell, the air inlet is communicated with a glue making machine, the air outlet is communicated with a vacuum filter, a flow blocking component is arranged in the shell, and the flow blocking component protrudes towards the air inlet to form a variable cross-section annular flow blocking surface which passes through gas and prevents liquid and solid.

Therefore, when the vacuum filter vacuumizes the glue making machine after the stirring process, the gas mixed with liquid drops or solid particles in the glue making machine is pumped out and passes through the shell, and the liquid drops or solid particles entrained in the gas can be captured by the variable-section annular blocking surface on the blocking component in the shell by utilizing the inertial collision effect, so that the gas is purified, and meanwhile, the range of capturing the liquid drops or solid particles by the variable-section annular blocking surface is large and is better than a plane, so that the amount of the liquid drops or solid particles entering the vacuum filter along the inner wall of a pipeline is reduced, and therefore, the cleaning frequency of the vacuum filter and the replacement frequency of the filter element can be reduced, the equipment maintenance cost is reduced, the time is saved, and the efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view of a first baffle according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a second baffle according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a quick connector according to an embodiment of the present utility model;

FIG. 5 is a schematic structural view of a seal ring according to an embodiment of the present utility model;

fig. 6 is a schematic structural view of a clip according to an embodiment of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a housing; 2. a first baffle; 3. a flange; 4. a second baffle; 5. a second through hole; 6. a tube body; 7. a seal ring; 8. a clamp; 9. a quick-fit joint; 10. a first through hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment of the utility model provides a vacuumizing anti-suck-back device, which can solve the problems that in the prior art, liquid drops or solid particles are mixed in air in a glue making machine after a stirring process, and the air mixed with the liquid drops or the solid particles is sucked into a vacuum pipeline and intercepted at a vacuum filter during the vacuumizing process, so that the vacuum filter is frequently cleaned and a filter element is frequently replaced.

Referring to fig. 1, an embodiment of the present utility model provides a vacuum anti-suck-back device, including:

a housing 1 provided with an air inlet and an air outlet above the air inlet;

and a baffle assembly which is arranged in the shell 1 and is provided with a variable cross-section annular baffle surface which is protruded towards the air inlet and used for passing gas and preventing liquid and solid.

The shell 1 of the vacuumizing anti-suck-back device is provided with an air inlet and an air outlet positioned above the air inlet, meanwhile, a flow blocking component is arranged in the shell 1, and the flow blocking component protrudes towards the air inlet to form a variable cross-section annular flow blocking surface which passes through gas and prevents liquid and solid.

When the automatic vacuum control device is particularly used, the air inlet of the shell 1 is connected with a vacuum pipeline extending out of the tank body of the glue making machine, and the air outlet of the shell 1 is connected with an automatic vacuum control valve of the glue making machine.

When the vacuum filter vacuumizes the glue making machine after the stirring process, the gas mixed with liquid drops or solid particles in the glue making machine is pumped out from the glue making machine and enters the shell 1 through the pipeline, the gas mixed with liquid drops or solid particles collides with the variable cross-section annular baffle surface on the baffle component in the shell 1 under the action of inertia, and the liquid drops or solid particles lose motion inertia after contacting with the variable cross-section annular baffle surface and are collected on the variable cross-section annular baffle surface, so that the liquid drops or solid particles entrained in the gas can be trapped by the variable cross-section annular baffle surface, the gas is further purified, and meanwhile, the range of the variable cross-section annular baffle surface for trapping the liquid drops or solid particles is large and is superior to a plane, so that the quantity of the liquid drops or solid particles entering the vacuum filter along the inner wall of the pipeline is reduced, thereby the cleaning frequency of the vacuum filter and the replacement frequency of the filter element can be reduced, the equipment maintenance cost is lowered, the time is saved, and the efficiency is improved.

It should be noted that, the procedure of evacuating the glue making machine is set as follows: and (5) performing the action of pumping for 30 seconds and stopping for 5 seconds to and fro until the vacuum set value is pumped. The time of stopping for 5 seconds is convenient for the liquid drops or solid particles remained on the variable cross-section annular baffle surface and on the inner wall of the pipe fitting to fall back into the glue making machine under the action of gravity.

According to the embodiment of the utility model, the technical characteristics of the vacuumizing anti-suck-back device are added at the front end of the vacuumizing automatic control valve of the glue making machine, so that the defect that liquid enters the vacuum filter and the vacuum source equipment along the inner wall of the vacuum pipeline in the vacuumizing process of the glue making machine is overcome, the frequency of cleaning the vacuum filter is reduced, the filter element is saved, the cost is reduced, the time is saved, and the efficiency is improved.

In some alternative embodiments: referring to fig. 1 to 2, an embodiment of the present utility model provides an evacuation anti-suck-back device, a flow blocking assembly of the evacuation anti-suck-back device includes a first flow blocking member 2, the first flow blocking member 2 protrudes toward an air inlet to form a variable cross-section annular flow blocking surface for passing air and blocking liquid and solid, and a first through hole 10 is provided at one end of the first flow blocking member 2 near the air inlet.

When the device is specifically used, the gas of mixed liquid drops or solid particles in the gas collides with the variable cross-section annular baffle surface on the first baffle member 2 in the shell 1 under the action of inertia, the liquid drops or solid particles lose motion inertia after contacting with the variable cross-section annular baffle surface and are collected on the variable cross-section annular baffle surface, and the liquid drops or solid particles can fall down in a collection manner at the first through hole 10 under the action of gravity and finally fall back into the glue making machine through a pipeline, so that the effect of separating the liquid drops or solid particles in the gas is prevented from being influenced by excessive accumulation of the liquid drops or solid particles on the variable cross-section annular baffle surface.

In some alternative embodiments: referring to fig. 1 to 2, an embodiment of the present utility model provides an evacuation anti-suck-back device, in which a first baffle 2 protrudes outwardly at a first through hole 10 and is radially enlarged with a flange 3, and the flange 3 is in the shape of a ring.

When the device is particularly used, gas of liquid drops or solid particles collides with the variable cross-section annular baffle surface of the conical tube in the shell 1 under the action of inertia, the liquid drops or solid particles lose motion inertia after contacting with the variable cross-section annular baffle surface and are collected on the variable cross-section annular baffle surface, the liquid drops or solid particles are collected and fall down under the action of gravity and flow back into the glue making machine through a pipeline, the effect of separating the liquid drops or solid particles in the gas is prevented from being influenced by excessive accumulation of the liquid drops or solid particles on the variable cross-section annular baffle surface, and meanwhile, as the first baffle member 2 is provided with the annular flange 3 protruding outwards and expanding radially at the first through hole 10, when the liquid drops or solid particles slide down along the flange 3, the liquid drops or solid particles slide down onto the inner wall of the shell 1 along the inclined direction of the inclined plane formed by expanding the flange 3 and finally flow out of the shell 1, and the liquid drops or solid particles sliding down along the variable cross-section annular baffle surface are prevented from being wrapped by the air flow formed by vacuumizing and passing through the first through hole 10, so that the effect of separating the liquid drops or solid particles in the gas is ensured.

Meanwhile, the annular surface on the inner side of the flange 3 can guide the air flow entering the shell 1, so that the influence of the first flow blocking piece 2 on the smoothness of the air flow is avoided.

In some alternative embodiments: referring to fig. 1 to 3, an embodiment of the present utility model provides an evacuation anti-suck-back apparatus, and a flow blocking assembly of the evacuation anti-suck-back apparatus further includes a second flow blocking member 4, wherein the second flow blocking member 4 is formed with a variable cross-section annular flow blocking surface protruding toward an air inlet to pass through air and prevent liquid and solid, and a plurality of second through holes 5 are provided on the second flow blocking member 4.

When the filter is particularly used, the first baffle member 2 serves as a first defense line to block liquid drops or solid particles in the air flow, part of the liquid drops or solid particles in the air flow are blocked on the peripheral side wall of the first baffle member 2, the air flow passes through the first through holes 10 in the middle of the first baffle member 2, the second baffle member 4 serves as a second defense line to block the liquid drops or solid particles in the air flow, the liquid drops or solid particles in the air flow are blocked on the middle part and the periphery of the second baffle member 4, the air flow passes through the second through holes 5 in the peripheral side of the second baffle member 4, and then the liquid drops or solid particles mixed in the air are separated twice, so that the separation effect of the liquid drops or solid particles in the air is improved, and the cleaning frequency of a vacuum filter and the replacement frequency of the filter element are reduced.

In some alternative embodiments: referring to fig. 1 to 3, an embodiment of the present utility model provides an evacuation anti-suck-back device in which a first through hole 10 and a second through hole 5 do not overlap in an axial projection direction.

Because the first through hole 10 and the second through hole 5 are not overlapped in the axial projection direction, the gas which is not collided with the first flow baffle piece 2 can collide with the second flow baffle piece 4, and then the mixed liquid drops or solid particles in the gas are separated for two times, the amount of the liquid drops or solid particles entering the vacuum filter along the inner wall of the pipeline is reduced to the greatest extent, the effect of separating the liquid drops or solid particles in the gas is improved, and the purposes of further reducing the cleaning frequency of the vacuum filter and the replacement frequency of the filter element are achieved.

In some alternative embodiments: referring to fig. 1 to 3, an embodiment of the present utility model provides a vacuum anti-suck-back device, where a variable cross-section annular baffle surface of the vacuum anti-suck-back device is a conical surface or a spherical surface.

In specific use, the first baffle member 2 and the second baffle member 4 are preferably conical shells or spherical shells, and are correspondingly provided with a first through hole 10 and a second through hole 5.

When the first baffle member 2 and the second baffle member 4 are conical shells, the taper of the conical shells is preferably 2, that is, the inclination angle of the central interface of the conical shells is 45 °, so that the processing is facilitated.

It should be noted that, when the conical shell is adopted by the second flow blocking piece 4, the tip portion of the second flow blocking piece 4 can be designed to be a rounded corner, so that liquid drops or solid particles are not affected and fall down together, and meanwhile the effect of avoiding scratching hands of personnel during pipe fitting maintenance can be achieved.

In some alternative embodiments: referring to fig. 1, the embodiment of the utility model provides a vacuum anti-suck-back device, wherein a second baffle 4 of the vacuum anti-suck-back device is close to an air outlet of a shell 1, and a first baffle 2 is close to an air inlet of the shell 1.

When the device is particularly used, the shell 1 is in a vertical placement state, liquid drops or solid particles accumulated on the peripheral side wall of the second baffle 4 can slide down along the peripheral side wall of the second baffle 4 under the action of gravity and fall from the protruding end of the second baffle 4, and the dropped liquid drops or solid particles can pass through the first through holes 10 on the first baffle 2 and finally leave the shell 1, so that the effect of separating the liquid drops or solid particles in gas is prevented from being influenced by excessive accumulation of the liquid drops or solid particles on the second baffle 4.

In some alternative embodiments: referring to fig. 1 and 3, the embodiment of the utility model provides a vacuum anti-suck-back device, wherein a shell 1 of the vacuum anti-suck-back device comprises a plurality of pipes 6 which are communicated from bottom to top and can be detached from each other, and a first baffle 2 and a second baffle 4 are positioned in different or the same pipe 6;

when the first baffle member 2 and the second baffle member 4 are positioned in different pipe bodies 6, the first baffle member 2 and the second baffle member 4 are fixedly or detachably connected with the pipe bodies 6;

when the first baffle 2 and the second baffle 4 are positioned in the same pipe body 6, the first baffle 2 and the second baffle 4 are both detachably connected with the pipe body 6.

Specifically, the first flow blocking member 2 and the second flow blocking member 4 can be installed in different pipe bodies 6 in a fixed or detachable manner, and when the housing 1 is assembled, the first flow blocking member 2 and the second flow blocking member 4 can form an assembly with different pipe bodies 6, so that the installation is convenient.

The first baffle 2 and the second baffle 4 can be detachably arranged in different pipe bodies 6, and when the first baffle 2 and the second baffle 4 need to be cleaned, the first baffle 2 and the second baffle 4 can be detached from the pipe bodies 6, so that the cleaning is convenient.

It should be noted that, the fixed connection may be welded or glued, and the detachable connection may be threaded connection or clamping connection.

In some alternative embodiments: referring to fig. 1 and 6, the embodiment of the utility model provides a vacuum anti-suck-back device, a sealing ring 7 is arranged between two adjacent pipe bodies 6 of the vacuum anti-suck-back device, the two adjacent pipe bodies 6 are fixedly connected through a clamp 8, and a quick connector 9 is arranged at the air inlet end and the air outlet end of a shell 1.

Specifically, a sealing ring 7 is installed between two adjacent pipe bodies 6, the sealing ring 7 can adopt a corrosion-resistant polytetrafluoroethylene O-shaped ring, the two adjacent pipe bodies 6 are fixedly connected through a clamp 8, the clamp 8 is of the prior art, stainless steel can be adopted, and the connecting device is a connecting device for connecting pipe fittings, valves and pipeline fittings with grooves.

When the pipe fitting is specifically used, the clamp 8 can be detached, the pipe bodies 6 are further separated from each other, the pipe bodies 6 are conveniently cleaned or replaced, and meanwhile, the air inlet and the air outlet are both provided with the quick connector 9, so that the pipe fitting is conveniently connected with a pipeline.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that in the present utility model, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The utility model provides a vacuum anti-suck-back device which characterized in that includes:

a shell (1) provided with an air inlet and an air outlet above the air inlet;

a baffle assembly which is arranged in the shell (1) and protrudes towards the air inlet to form a variable cross-section annular baffle surface which passes through gas and prevents liquid and solid;

the flow blocking assembly comprises a first flow blocking piece (2), the first flow blocking piece (2) protrudes towards the direction of the air inlet to form a variable cross-section annular flow blocking surface which passes through air and prevents liquid and solid, and a first through hole (10) is formed in one end, close to the air inlet, of the first flow blocking piece (2).

2. A vacuum anti-suck-back apparatus as claimed in claim 1, wherein:

the first flow blocking piece (2) is provided with a flange (3) which protrudes outwards at the first through hole (10) and expands radially, and the flange (3) is annular.

3. A vacuum anti-suck-back apparatus as claimed in claim 1, wherein:

the flow blocking assembly further comprises a second flow blocking piece (4), the second flow blocking piece (4) protrudes towards the air inlet, a variable cross-section annular flow blocking surface which passes through air and prevents liquid and solid is formed in a protruding mode, and a plurality of second through holes (5) are formed in the second flow blocking piece (4).

4. A vacuum anti-suck-back apparatus as claimed in claim 3, wherein:

the first through hole (10) and the second through hole (5) are not overlapped in the axial projection direction.

5. A vacuum anti-suck-back apparatus as claimed in claim 3, wherein:

the variable cross-section annular flow blocking surface is a conical surface or a spherical surface.

6. A vacuum anti-suck-back apparatus as claimed in claim 3, wherein:

the second flow baffle (4) is close to the air outlet of the shell (1), and the first flow baffle (2) is close to the air inlet of the shell (1).

7. A vacuum anti-suck-back apparatus as claimed in claim 3, wherein:

the shell (1) comprises a plurality of pipe bodies (6) which are communicated from bottom to top and can be detached from each other.

8. A vacuum anti-suck-back apparatus as claimed in claim 3, wherein:

the first baffle (2) and the second baffle (4) are positioned in different or the same pipe body (6);

when the first flow blocking piece (2) and the second flow blocking piece (4) are positioned in different pipe bodies (6), the first flow blocking piece (2) and the second flow blocking piece (4) are fixedly or detachably connected with the pipe bodies (6);

when the first flow blocking piece (2) and the second flow blocking piece (4) are positioned in the same pipe body (6), the first flow blocking piece (2) and the second flow blocking piece (4) are detachably connected with the pipe body (6).

9. The vacuum anti-suck-back apparatus of claim 7 wherein:

a sealing ring (7) is arranged between two adjacent pipe bodies (6), the two adjacent pipe bodies (6) are fixedly connected through a clamp (8), and the air inlet and the air outlet of the shell (1) are respectively provided with a quick connector (9).