CN218086986U - Vacuumizing joint and vacuum cooling box - Google Patents

Abstract

The application provides a vacuumizing joint and vacuum cold box relates to the vacuumizing joint field, and the vacuumizing joint is including takeover, explosion-proof end cap and protective cover, one end is equipped with first contact surface in the takeover, first contact surface is the inclined plane, explosion-proof end cap set up in the takeover, and with first contact surface cooperatees, explosion-proof end cap is close to the sectional area that the sectional area of takeover one end is less than the other end, the takeover is close to the one end of first contact surface with the protective cover can be dismantled and connect, keeps away from the one end of first contact surface is connected with the evacuation pipe, the protective cover lid is located with the backstop on the takeover explosion-proof end cap, the slope first contact surface be favorable to with explosion-proof function in the takeover, improved the explosion-proof function explosion-proof end cap's installation effectiveness, the protective cover can backstop explosion-proof end cap has improved operational environment's security.

Description

Vacuumizing joint and vacuum cooling box

Technical Field

The application relates to the field of vacuumizing joints, in particular to a vacuumizing joint and a vacuum cooling box.

Background

The air separation device is a set of industrial equipment which can realize separation of main gas components in air by deeply cooling the air to be in a liquid state and gradually separate oxygen, nitrogen and argon due to different boiling points of all components in the liquid air.

The vacuum cold box is one of the key equipment of air separation plant, and the vacuum cold box has the characteristics such as high efficiency, compact structure, be applicable to heterogeneous stream, and the vacuum cold box can provide vacuum adiabatic environment, can reduce cold volume loss, and the equipment evacuation mouth pipe and the explosion-proof equipment among the current vacuum cold box equipment are split devices mostly, need carry out trompil many times to the box, and manufacturing cost is high, and the intensity of labour of installation explosion-proof equipment is big.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough among the prior art, this application provides an evacuation joint and vacuum cold box.

In a first aspect, the present application provides an evacuation connector, comprising: take over, explosion-proof end cap and protective cover, one end is equipped with first contact surface in the takeover, first contact surface is the inclined plane, explosion-proof end cap set up in the takeover, and with first contact surface cooperatees, explosion-proof end cap is close to the sectional area of taking over one end is less than the sectional area of the other end, the takeover is close to the one end of first contact surface with the protective cover can be dismantled the connection, keeps away from the one end and the vacuum tube connection of first contact surface, the protective cover lid is located with the backstop on the takeover explosion-proof end cap.

With reference to the first aspect, in a possible implementation manner, an opening structure is disposed on the explosion-proof plug, and the opening structure is located at an end of the explosion-proof plug, which is far away from the evacuation tube.

With reference to the first aspect, in a possible implementation manner, the vacuum joint further includes: seal assembly, seal assembly set up in explosion-proof end cap with between the takeover, seal assembly includes: the first sealing ring is sleeved on the anti-explosion plug, the second sealing ring is sleeved on the anti-explosion plug, and the second sealing ring is located at one end, close to the vacuum tube, of the anti-explosion plug.

With reference to the first aspect, in one possible implementation manner, the vacuum pumping joint further includes: a first connecting piece, the first connecting piece is connected the protective cover with take over, so that the protective cover with take over can dismantle the connection.

In a second aspect, the present application provides a vacuum cooling box, which includes the vacuum-pumping joint.

With reference to the second aspect, in one possible embodiment, the vacuum cooling box further comprises: the vacuum tube is arranged in the box body, the elbow is connected with the vacuum joint and the vacuum tube, the fixing component is arranged in the box body, and the fixing component is connected with the box body and the vacuum tube.

With reference to the second aspect, in one possible embodiment, the fixing assembly includes: the vacuum tube is sleeved with the sleeve, the connecting plate is connected with the box body and the sleeve, and the fixing ring is sleeved on the sleeve.

With reference to the second aspect, in one possible embodiment, the vacuum cooling box further comprises: and the filtering component is sleeved in the vacuumizing pipe and is connected with the vacuumizing pipe.

With reference to the second aspect, in one possible embodiment, the vacuum cooling box further comprises: and the second connecting piece is arranged in the vacuum-pumping pipe and is connected with the filtering component and the vacuum-pumping pipe.

With reference to the second aspect, in one possible embodiment, the vacuum cooling box further includes: a partition plate;

the baffle is sleeved in the vacuum-pumping pipe and connected with the vacuum-pumping pipe.

Compared with the prior art, the beneficial effects of the application are that:

the application provides an evacuation connects, after accomplishing the evacuation, will explosion-proof end cap insert in the connecting pipe, make explosion-proof end cap laminating first contact surface, it is right to take over and carry out the shutoff, then will the protective cover with take over and connect, because after the evacuation is accomplished pressure in the vacuum cold box is less than the outer pressure of vacuum cold box, explosion-proof end cap atress is to being close to the direction removal of evacuation pipe has improved explosion-proof end cap with leakproofness between the first contact surface and the steadiness of being connected work as pressure in the vacuum cold box is greater than during the outer pressure of vacuum cold box, explosion-proof end cap atress is to keeping away from the direction removal of evacuation pipe, explosion-proof end cap is followed is released in the take over, can effectively prevent because of the explosion that too big unable pressure release of pressure leads to in the vacuum cold box, the evacuation connects has the function, need not to add explosion-proof equipment in addition, has reduced manufacturing cost, the slope first contact surface is favorable to with explosion-proof pushes in the take over, improved explosion-proof function explosion-proof end cap, explosion-proof end cap installation efficiency has just improved the safety end cap, the environmental protection end cap, has the effect to explosion-proof end cap, has improved the backstop effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, 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 shows a schematic cross-sectional view of the overall structure of an evacuation connection;

FIG. 2 shows a schematic cross-sectional view of a nozzle of the evacuation connection;

FIG. 3 shows a schematic cross-sectional view of a protective cover of an evacuation fitting;

FIG. 4 shows a schematic cross-sectional view of an explosion-proof bulkhead of the evacuation connector;

FIG. 5 is an enlarged cross-sectional view of a first seal ring of the evacuation fitting;

FIG. 6 is a schematic sectional view showing the overall structure of the vacuum cooling box;

FIG. 7 shows a schematic cross-sectional view of a fixture assembly of the vacuum cooler block;

FIG. 8 shows a schematic cross-sectional view of the hoop of the vacuum cooler;

FIG. 9 shows a schematic cross-sectional view of a second connection of the vacuum cooling box;

FIG. 10 shows a schematic cross-sectional view of a baffle of a vacuum cold box.

Description of the main element symbols:

100-connecting pipe; 110 — a first threaded through hole; 120-contact surface; 200-explosion-proof plug; 210-an open structure; 220-a first mounting groove; 230-a second mounting groove; 300-protective cover; 310-a second threaded through hole; 400-a seal assembly; 410-a first seal ring; 420-a second sealing ring; 500-a first connector; 600-a box body; 610-bend; 620-evacuation tube; 621-mounting holes; 630-a stationary component; 631-a connecting plate; 632-a sleeve; 633-a fixed ring; 640-a filter assembly; 641-glass cloth; 642-phosphor copper wire mesh; 650-a second connector; 660-a separator; 670-a reinforcing ring; 680-hoop.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

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," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to 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 to implicitly indicate 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, "a plurality" means two or more 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; can be mechanically or electrically connected; 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.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1, an embodiment of the present application provides a vacuum connector, including: the connecting pipe 100, the explosion-proof plug 200, the protective cover 300, the sealing assembly 400 and the first connecting piece 500. One end of the connection pipe 100 penetrates through the vacuum cooling box and is connected with the vacuum pumping pipe 620 in the vacuum cooling box, and the other end of the connection pipe is sleeved in the protective cover 300. The explosion-proof plug 200 is sleeved in the connecting pipe 100, and the explosion-proof plug 200 is located at one end of the connecting pipe 100 far away from the vacuum-pumping pipe 620. The sealing assembly 400 is sleeved on the explosion-proof plug 200. The protective cover 300 is located outside the vacuum cooling box. The first connector 500 connects the adapter tube 100 and the protective cover 300, so that the adapter tube 100 and the protective cover 300 can be detachably connected.

Referring to fig. 1, in some embodiments, the first connectors 500 are screws, a central axis of the first connectors 500 is perpendicular to a central axis of the barrier cover 300, the first connectors 500 are located in a radial direction of the barrier cover 300, and the number of the first connectors 500 is 3.

Referring to fig. 2, in some embodiments, the adapter tube 100 is made of brass, and the adapter tube 100 is provided with a first threaded through hole 110 and a contact surface 120. The first threaded through holes 110 are matched with the first connectors 500, and the number of the first threaded through holes 110 is equal to that of the first connectors 500. The contact surface 120 is a contact surface in the connecting pipe 100, which is in contact with the explosion-proof plug 200, the contact surface 120 is an annular contact surface, and the contact surface 120 is an inclined surface. The contact surface 120 is matched with the explosion-proof plug 200, the contact surface 120 is attached to the explosion-proof plug 200, and the included angle between the contact surface 120 and the central axis of the connecting pipe 100 ranges from 4.9 degrees to 5.1 degrees.

In some embodiments, the outer diameter of the adapter 100 is 60.3 mm.

Referring to fig. 3, in some embodiments, the protecting cover 300 is cylindrical, and an end of the protecting cover 300 close to the evacuation tube 620 is open. The protective cover 300 is provided with a second threaded through hole 310. The second threaded through hole 310 is opposite to the first threaded through hole 110, and the second threaded through hole 310 is matched with the first connecting piece 500. The central axis of the second threaded through hole 310 is perpendicular to the central axis of the protecting cover 300, and the second threaded through hole 310 is located in the radial direction of the protecting cover 300.

In some embodiments, the outer diameter of the protective cover 300 is 90 mm, the length of the protective cover 300 along the direction of the nozzle 100 is 70 mm, and the wall thickness of the protective cover 300 is 3 mm. The distance between the central axis of the second threaded through hole 310 and one end of the protective cover 300 close to the evacuation tube 620 is 15 mm.

In some embodiments, the vacuum pumping operation is performed on the vacuum cooling box through the vacuum pumping tube 620, after the vacuum pumping is completed, the explosion-proof plug 200 is inserted into the connection tube 100, so that the explosion-proof plug 200 is attached to the contact surface 120 to plug the connection tube 100, then the protection cover 300 is sleeved outside the connection tube 100, the first connecting member 500 is inserted into the first threaded through hole 110 and the second threaded through hole 310, the first connecting member 500 is screwed to connect the protection cover 300 and the connection tube 100, since the pressure inside the vacuum cooling box is lower than the pressure outside the vacuum cooling box after the vacuum pumping is completed, the explosion-proof plug 200 is forced to move in a direction close to the vacuum pumping tube 620, so that the sealing performance and the connection stability between the explosion-proof plug 200 and the contact surface 120 are improved, and the inclined contact surface 120 is favorable for pushing the plug 200 into the connection tube 100, so that the efficiency of plugging the connection tube 100 is improved, and the installation efficiency of the explosion-proof plug 200 with an explosion-proof function is improved.

In some embodiments, when the pressure inside the vacuum cooling box is greater than the pressure outside the vacuum cooling box, the explosion-proof plug 200 is forced to move in a direction away from the evacuation tube 620, the explosion-proof plug 200 is pushed out of the connection tube 100, so that explosion caused by too high pressure inside the vacuum cooling box and incapability of pressure relief can be effectively prevented, the safety is good, the explosion-proof plug 200 has an explosion-proof function, the explosion-proof plug 200 is installed in the connection tube 100, an additional explosion-proof device is not required to be additionally arranged, the production cost is reduced, the protective cover 300 has an interception function on the discharged explosion-proof plug 200, the situation that the pushed explosion-proof plug 200 flies and flees can be effectively prevented, and the safety of the environment is improved.

Referring to fig. 1 and 5, in some embodiments, the seal assembly 400 includes: a first seal 410 and a second seal 420. The first sealing ring 410 is sleeved on the explosion-proof plug 200, and the first sealing ring 410 is an O-shaped sealing ring. The second sealing ring 420 is sleeved on the explosion-proof plug 200, the second sealing ring 420 is located at one end of the explosion-proof plug 200 close to the evacuation tube 620, and the second sealing ring 420 is an O-shaped sealing ring.

Referring to fig. 4, in some embodiments, the explosion-proof plug 200 is provided with an opening structure 210, a first mounting groove 220, and a second mounting groove 230. The explosion-proof plug 200 is an annular explosion-proof plug, and the sectional area of one end, close to the vacuum tube 620, of the explosion-proof plug 200 is smaller than that of the other end.

In some embodiments, the explosion-proof plug 200 is made of rubber, the inner diameter of one end of the explosion-proof plug 200, which is close to the first mounting groove 220, is 49.5 mm, the inner diameter of the other end of the explosion-proof plug is 44.2 mm, and the length of the explosion-proof plug 200 along the direction of the connecting pipe 100 is in a range of 16 mm to 17 mm.

In some embodiments, the central axis of the opening structure 210 coincides with the central axis of the explosion-proof plug 200, the central axis of the adapter tube 100, and the central axis of the protective cover 300. Open structure 210 is located explosion-proof end cap 200 is kept away from the one end of evacuation pipe 620, open structure 210 is kept away from the sectional area of evacuation pipe 620 one end is greater than the other end, works as after the evacuation is accomplished to the cold case in vacuum, take over 100 outer air admission in open structure 210 in order to promote explosion-proof end cap 200 is to being close to evacuation pipe 620's direction removes, can increase explosion-proof end cap 200's stress surface, is convenient for explosion-proof end cap 200 is inhaled fast in taking over 100, has further improved explosion-proof end cap 200 with leakproofness and the steadiness of connecting between the contact surface 120, just open structure 210 makes things convenient for the manual work to follow take over 100 and takes out explosion-proof end cap 200, and the practicality is strong.

Referring to fig. 4, in some embodiments, the first mounting groove 220 is disposed on the anti-explosion plug 200, and the first mounting groove 220 is an annular mounting groove. The second mounting groove 230 is disposed on the explosion-proof plug 200, the second mounting groove 230 is located at one side of the first mounting groove 220 close to the evacuation tube 620, and the second mounting groove 230 is an annular mounting groove.

In some embodiments, the width of the first mounting groove 220 is 5 mm. The width of the second mounting groove 230 is 3 mm, and the distance between the second mounting groove 230 and the first mounting groove 220 is 3 mm.

Referring to fig. 4 and 5, in some embodiments, the first sealing ring 410 is sleeved in the first mounting groove 220. The second sealing ring 420 is sleeved in the second mounting groove 230. The first sealing ring 410 and the second sealing ring 420 are used for improving the sealing performance and the friction force between the explosion-proof plug 200 and the contact surface 120, reducing the impact force of the pushed explosion-proof plug 200, having a buffering effect, and improving the safety.

Example two

Referring to fig. 1 to 5, an embodiment of the present application provides a vacuum cooling box, which includes the vacuum connector.

Referring to fig. 6, in some embodiments, the vacuum cooling box further comprises: the filter comprises a box body 600, an elbow 610, a vacuum tube 620, a fixing component 630, a filter component 640, a second connecting piece 650, a partition 660, a reinforcing ring 670 and a hoop 680. The elbow 610 is disposed in the box body 600, and the elbow 610 connects the vacuum-pumping connector and the vacuum-pumping pipe 620. The fixing assembly 630 is disposed in the box 600, and the fixing assembly 630 connects the box 600 and the evacuation tube 620. The filtering assembly 640 is sleeved in the evacuation tube 620 and connected to the evacuation tube 620. The second connector 650 connects the filter assembly 640 and the evacuation tube 620. The partition plate 660 is sleeved in the evacuation tube 620 and connected to the evacuation tube 620. The reinforcing ring 670 is disposed in the case 600. The hoop 680 is sleeved on the evacuation tube 620, and the hoop 680 is connected with the reinforcing ring 670.

In some embodiments, one end of the adapter tube 100 penetrates through the inner wall of the box 600 to be connected to the evacuation tube 620, and the other end is located outside the box 600.

In some embodiments, the distance between the end of the adapter tube 100 away from the evacuation tube 620 and the inner wall of the box 600 is 60 mm. The outer diameter of the vacuum-pumping pipe 620 is 60.3 mm, and the distance between the central axis of the vacuum-pumping pipe 620 and the inner wall of the box body 600 is 172 mm.

Referring to fig. 6 and 7, in some embodiments, the fixing assembly 630 is used for fixing the position of the evacuation tube 620, the fixing assembly 630 is a plurality of fixing assemblies that are uniformly distributed, and the fixing assembly 630 includes: a connecting plate 631, a sleeve 632, and a fixing ring 633. The casing 632 is sleeved on the evacuation tube 620. The connecting plate 631 connects the inner side wall of the box 600 with the casing 632, and the connecting plate 631 is a rib plate. The fixing ring 633 is sleeved on the sleeve 632.

In some embodiments, the outer diameter of the sleeve 632 is 73 mm.

In some embodiments, the connection plate 631 is welded at one end to the inner sidewall of the case 600 and at the other end to the pipe housing.

In some embodiments, the second connection 650 is a copper wire.

Referring to fig. 9, in some embodiments, the inner sidewall of the evacuation tube 620 is provided with a plurality of mounting holes 621, and the mounting holes 621 are uniformly arranged. The copper wire passes through the mounting hole 621 to bind the filter assembly 640 to the inner sidewall of the evacuation tube 620, so as to fix the position of the filter assembly 640.

Referring to fig. 10, in some embodiments, the filter assembly 640 is used for filtering impurities in the evacuation pipe 620, and the filter assembly 640 includes: glass cloth 641 and phosphor-copper wire mesh 642. The glass fiber cloth 641 is a glass fiber cloth 641 after degreasing treatment, the glass fiber cloth 641 is annular, and the glass fiber cloth 641 is two layers which are mutually nested. Phosphor copper silk screen 642 is the annular, phosphor copper silk screen 642 is nested two-layer each other, phosphor copper silk screen 642 is located between glass silk cloth 641 and the inside wall of fidelity orifice pipe, phosphor copper silk screen 642 cover is located on the glass silk cloth 641. The copper wire penetrates through the mounting hole 621 to bind the phosphorus copper wire mesh 642 and the glass wire cloth 641 on the inner side wall of the vacuum tube 620, so that the phosphorus copper wire mesh 642 is attached to the inner side wall of the vacuum tube 620.

Referring to fig. 10, in some embodiments, the partition plate 660 is welded inside the evacuation tube 620, and the partition plate 660 is used to divide the evacuation tube 620 into 4 equal-sized air ducts. The partition plate 660 is an angle iron.

Referring to fig. 8, in some embodiments, the hoop 680 and the reinforcing ring 670 are used to fix the position of the vacuum tube 620, so as to reduce the shaking of the vacuum tube 620 during the vacuum-pumping operation, and improve the stability of the vacuum tube 620 during the vacuum-pumping operation, and the hoop 680 is a plurality of hoops that are uniformly distributed. The number of the reinforcing rings 670 is equal to that of the anchor ears 680.

In some embodiments, the distance between the anchor ear 680 and the inner side wall of the box body 600 is 74 mm.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are exemplary and should not be construed as limiting the present application and that changes, modifications, substitutions and alterations in the above embodiments may be made by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. An evacuated joint, comprising: the connecting pipe, the explosion-proof plug and the protective cover;

a first contact surface is arranged at one end in the connecting pipe, and the first contact surface is an inclined surface;

the explosion-proof plug is arranged in the connecting pipe and matched with the first contact surface;

the sectional area of one end, close to the connecting pipe, of the explosion-proof plug is smaller than that of the other end of the explosion-proof plug;

one end of the connecting pipe, which is close to the first contact surface, is detachably connected with the protective cover, and one end of the connecting pipe, which is far away from the first contact surface, is connected with the vacuumizing pipe;

the protective cover is arranged on the connecting pipe to stop the explosion-proof plug.

2. The evacuation connection of claim 1, wherein the explosion-proof plug is provided with an opening structure, and the opening structure is located at an end of the explosion-proof plug far away from the evacuation tube.

3. The evacuation fitting of claim 1, further comprising: a seal assembly;

the seal assembly set up in explosion-proof end cap with between the takeover, seal assembly includes: a first seal ring and a second seal ring;

the first sealing ring is sleeved on the anti-explosion plug;

the second sealing ring is sleeved on the anti-explosion plug, and the second sealing ring is located at one end, close to the vacuumizing tube, of the anti-explosion plug.

4. The evacuation fitting of claim 3, further comprising: a first connecting member;

the first connecting piece is connected the protective cover with take over to the messenger the protective cover with take over can dismantle the connection.

5. A vacuum cooling box characterized by comprising the vacuum-pumping joint as claimed in any one of claims 1 to 4.

6. The vacuum cooling box of claim 5, further comprising: the vacuum pump comprises a box body, a vacuumizing pipe, an elbow and a fixing component;

the vacuum-pumping pipe is arranged in the box body;

the elbow is arranged in the box body and connected with the vacuumizing joint and the vacuumizing pipe;

the fixing component is arranged in the box body and is connected with the box body and the vacuumizing tube.

7. The vacuum cooler of claim 6, wherein said mounting assembly comprises: a connecting plate, a sleeve and a fixing ring;

the sleeve is sleeved on the vacuumizing tube;

the connecting plate is connected with the box body and the sleeve;

the fixing ring is sleeved on the sleeve.

8. The vacuum cooling box of claim 6, further comprising: a filter assembly;

the filtering component is sleeved in the vacuum tube and connected with the vacuum tube.

9. The vacuum cooling box of claim 8, further comprising: a second connecting member;

the second connecting piece is arranged in the vacuum-pumping pipe and is connected with the filtering component and the vacuum-pumping pipe.

10. The vacuum cooling box of claim 6, further comprising: a partition plate;

the baffle is sleeved in the vacuum-pumping pipe and connected with the vacuum-pumping pipe.

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