CN211852105U

CN211852105U - Rotary disc type centralized multi-stage vacuum-pumping system

Info

Publication number: CN211852105U
Application number: CN201922457767.8U
Authority: CN
Inventors: 朱海啸; 房传球; 唐兴顶; 吴海波; 朱子天
Original assignee: Hubei Tims Machinery Equipment Co ltd; Shenzhen Tims Technology Co ltd; Dongguan Tianmeixin Automation Equipment Co ltd
Current assignee: Hubei Tims Machinery Equipment Co ltd; Shenzhen Tims Technology Co ltd; Dongguan Tianmeixin Automation Equipment Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-11-03
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a multistage evacuation system is concentrated to carousel formula, including main evacuation part, main evacuation part includes main evacuation pump and the vacuum tube that is used for connecting main evacuation pump and work piece, be equipped with the control valve in the pipeline of vacuum tube, and be equipped with the connector that is used for being connected with the work piece at the free end of vacuum tube, still include the evacuation part in advance, the evacuation part is including establishing on the carousel in advance, can be along with carousel pivoted evacuation pump in advance, the circle shape evacuation pipe of establishing on the carousel, the circle shape evacuation pipe in advance is connected with the evacuation pump in advance, the circle shape evacuation pipe in advance is equipped with a plurality of and the pipe connection of circle shape evacuation pipe intercommunication in advance, the pipe connection between the pipeline that the evacuation control valve and vacuum tube connector are passed through in advance to the branch vacuum tube. The utility model discloses can do the diameter of carousel littleer, also can not produce when the work piece of every set of branch pipe gets into the evacuation environment, it is serious to the vacuum destruction of other branch pipes, the great problem of whole vacuum fluctuation.

Description

Rotary disc type centralized multi-stage vacuum-pumping system

Technical Field

The utility model belongs to the technical field of compressor evacuation production facility technique and specifically relates to a multistage evacuation system is concentrated to carousel formula for compressor.

Background

In the field of compressor manufacturing, moisture in a refrigerant storage tank of a compressor needs to be removed as much as possible before the refrigerant storage tank is used, and the currently adopted method is to heat the refrigerant storage tank, then vacuumize the heated refrigerant storage tank to further remove the moisture, and then refill a dry gas (generally adopting nitrogen, of course, any dry gas can be used, including but not limited to dry air and other inert gases) into the refrigerant storage tank after the requirement is met. Compared with the traditional vacuum-pumping system, the center of the vacuum-pumping system is a gas cavity, branch pipelines are fully distributed on the periphery of the vacuum-pumping system, the branch pipelines are used for pumping vacuum and are used as gas-filled pipelines, and meanwhile, the branch pipelines are also used as supporting frameworks of the rotary table, each set of branch pipelines cannot be independently controlled and mutually influence, and the vacuum-pumping effect is poor.

In order to solve the above problems, chinese patent document CN107989771A discloses a centralized vacuum pumping device for a turntable of a compressor, which includes a frame, a turntable rotatably connected to the frame, an air supply duct, a branch duct for connecting the air supply duct with an external work station, and a vacuum pumping assembly; the gas supply pipeline is arranged on the turntable; the vacuumizing assembly comprises a vacuum pump processor arranged on the rack, a first main pipeline, a first vacuum connecting pipe, a second vacuum connecting pipe and a first electromagnetic valve arranged on the second vacuum connecting pipe; has the advantages that: through separating carousel, evacuation subassembly and gas supply line, realize the purpose that the speed of evacuation improves, every group evacuation subassembly all is furnished with first solenoid valve, controls the break-make of every set of evacuation subassembly for every set of evacuation subassembly is independent controllable, is not influenced mutually, and the evacuation effect obviously improves.

However, the centralized vacuumizing device for the turntable of the compressor has the following problems that firstly, under the condition of the running speed of the existing workpiece, the diameter of the turntable needs to be larger in order to ensure the vacuumizing effect, so that the requirement on the floor area of a use factory is larger, and the centralized vacuumizing device is not suitable for being installed in places with small and large earth and small gold; secondly, even if factories are used for installing plants with low price, the existing device still has the problems that when workpieces of each branch pipe enter a vacuumizing environment, the vacuum degree of other branch pipes is seriously damaged, the overall vacuum degree changes frequently, the fluctuation of the vacuum degree is large in the whole vacuumizing process, and the vacuumizing effect is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses to the society provide a multistage evacuation system is concentrated to carousel formula, this system can do the diameter of carousel littleer, also can not produce when the work piece of every set of branch pipe gets into the evacuation environment, and the vacuum to other branch pipes destroys seriously, the great problem of whole vacuum fluctuation.

The technical scheme of the utility model is that: the rotary disc type centralized multistage vacuumizing system comprises a main vacuumizing part, a pre-vacuumizing part and a plurality of branch vacuumizing pipes, wherein the main vacuumizing part comprises a main vacuumizing pump and a vacuum pipe used for connecting the main vacuumizing pump with a workpiece, a control valve is arranged in a pipeline of the vacuum pipe, a connector used for being connected with the workpiece is arranged at the free end of the vacuum pipe, the pre-vacuumizing part comprises a pre-vacuumizing pump which is arranged on a rotary disc and can rotate along with the rotary disc, and a ring-shaped pre-vacuumizing pipe arranged on the rotary disc, the ring-shaped pre-vacuumizing pipe is connected with the pre-vacuumizing pump, the ring-shaped pre-vacuumizing pipe is provided with a plurality of branch vacuumizing pipes communicated with the ring-shaped pre-vacuumizing pipe, and the branch vacuumizing pipes are connected with the control valve and the connector through pipelines between the pre-vacuumizing control valve; when the pre-vacuumizing is needed, closing the control valve and opening the pre-vacuumizing control valve; and after the pre-vacuumizing is finished, the pre-vacuumizing control valve is closed, the control valve is opened, and the main vacuumizing part works.

As an improvement, the ring-shaped pre-vacuuming tube is annular, and the ring-shaped pre-vacuuming tube and the rotating shaft of the turntable are coaxial.

As right the utility model discloses an it is right the improvement, the utility model discloses still include the dry gas and return the part of filling, the dry gas returns to fill the part and is responsible for the joint, returns inflation body pipeline and returns inflation body control valve including returning to inflate, it passes through to return to inflate the person in charge joint return inflation body pipeline and return inflation body control valve with the connector is connected.

As an improvement to the utility model, the inflation body control valve is an electromagnetic valve.

The utility model is additionally provided with the pre-vacuumizing part, the pre-vacuumizing part can pre-vacuumize the workpiece before the workpiece enters the main vacuumizing part, so that the vacuum degree in the workpiece reaches the preset requirement, and then the workpiece enters the main vacuumizing part, therefore, on one hand, the time on the turntable can be saved, and thus, the diameter of the turntable can be reduced, and the installation site is reduced; if the carousel size is unchangeable, the time of work piece on the carousel is unchangeable, the utility model discloses also can not produce when the work piece of every set of branch pipe gets into the evacuation environment, it is serious to the vacuum destruction of other branch pipes, the great problem of whole vacuum fluctuation.

Drawings

Fig. 1 is a schematic side view of an embodiment of the present invention.

Fig. 2 is a schematic top plan view of the structure of fig. 1.

Fig. 3 is an enlarged schematic view of a portion a in fig. 1.

Wherein, the main vacuum-pumping part 1;

a main vacuum pump 11;

a workpiece 12;

a vacuum tube 13;

a control valve 14; a pipe 141;

a connector 15;

a turntable 16;

a pre-vacuum part 2;

a pre-vacuum pump 21;

a hose 211;

a ring-shaped pre-vacuum tube 22;

a pre-vacuum control valve 23;

the manual control valve 231;

a branch vacuum tube 24;

a dry gas recharging part 3; a return air main pipe joint 31; a return gas delivery conduit 32; the gas control valve 33 is inflated.

Detailed Description

Referring to fig. 1 to 3, fig. 1 to 3 disclose a turntable type centralized multi-stage vacuum pumping system, which includes a main vacuum pumping part 1, the main vacuum pumping part 1 includes a main vacuum pumping pump 11 and a vacuum pipe 13 for connecting the main vacuum pumping pump 11 and a workpiece 12, a control valve 14 is disposed in a pipeline of the vacuum pipe 13, a connector 15 is disposed at a free end of the vacuum pipe 13 for connecting with the workpiece 12, and a pre-vacuum pumping part 2, the pre-vacuum pumping part 2 includes a pre-vacuum pumping pump 21 disposed on a turntable and capable of rotating with the turntable 16, a ring-shaped pre-vacuum pumping pipe 22 disposed on the turntable 16, the ring-shaped pre-vacuum pumping pipe 22 is connected with the pre-vacuum pumping pump 21, the ring-shaped pre-vacuum pumping pipe 22 is provided with a plurality of branch vacuum pipes 24 communicated with the ring-vacuum pumping pipe 22 (as can be seen from fig. 2, the number of the branch vacuum pipes 24 is equal to the number of the pipelines 141, and is rotatable with the turntable 16), the branch vacuum pipe 24 is connected with the pipeline 141 between the control valve 14 and the connector 15 through the pre-vacuum control valve 23 (the pre-vacuum control valve 23 is an electromagnetic valve); when the pre-vacuum pumping is needed, closing the control valve 14 and opening the pre-vacuum pumping control valve 23; after the pre-vacuum pumping is finished, the pre-vacuum pumping control valve 23 is closed, the control valve 14 is opened, and the main vacuum pumping part 1 works.

A manual control valve 231 is also provided in the line before the pre-vacuum control valve 23.

As an improvement of the present invention, the ring-shaped pre-vacuuming tube 22 is annular, and the ring-shaped pre-vacuuming tube 22 and the rotation axis of the turntable 16 have the same axis.

As right the utility model discloses an it is right the improvement, the utility model discloses still include the dry gas and return partial 3 of filling, the dry gas returns partial 3 of filling is responsible for joint 31, the inflation body pipeline 32 and the inflation body control valve 33 of returning including returning the inflation, the inflation body pipeline 31 of returning passes through inflation body pipeline 32 and inflation body control valve 33 with connector 15 is connected. In this embodiment, the backfill gas delivery line 32 is annular, and the backfill gas delivery line 32 is disposed about the rotational axis of the turntable 16. The backfilling part 3 is mainly used for backfilling dry gas such as dry air or dry inert gas such as nitrogen and the like.

As an improvement to the present invention, the inflation body control valve 33 is a solenoid valve.

The utility model adds a set of pre-vacuum pump and a ring-shaped pre-vacuum pipe arranged on the turntable; a pre-vacuum control valve is added on each original vacuum branch pipe; and starting the pre-vacuum pump, and performing pre-vacuum pumping operation on the entering branch pipe. The pre-vacuum pipe runs synchronously with the turntable. The branch vacuum tube is connected with the pipeline between the control valve and the connector through the pre-vacuum control valve. And after the pre-vacuumizing is finished, opening the main vacuumizing electromagnetic valve, and performing a conventional vacuumizing process.

The present invention does not describe the main vacuum-pumping part in detail, and if there is an unknown part, please refer to the content of the turntable centralized vacuum-pumping device of the compressor disclosed in chinese patent document CN 107989771A.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The utility model provides a multistage evacuation system is concentrated to carousel formula, includes main evacuation portion (1), main evacuation portion (1) includes main evacuation pump (11) and is used for connecting vacuum tube (13) of main evacuation pump (11) and work piece (12) be equipped with control valve (14) in the pipeline of vacuum tube (13), and the free end of vacuum tube (13) is equipped with and is used for connector (15) be connected with work piece (12), its characterized in that: the device is characterized by further comprising a pre-vacuumizing part (2), wherein the pre-vacuumizing part (2) comprises a pre-vacuumizing pump (21) which is arranged on the rotary disc and can rotate along with the rotary disc (16), and a ring-shaped pre-vacuumizing pipe (22) which is arranged on the rotary disc (16), the ring-shaped pre-vacuumizing pipe (22) is connected with the pre-vacuumizing pump (21), the ring-shaped pre-vacuumizing pipe (22) is provided with a plurality of branch vacuum pipes (24) which are communicated with the ring-shaped pre-vacuumizing pipe (22), and the branch vacuum pipes (24) are connected with a pipeline (141) between the control valve (14) and the connector (15) through a pre-vacuumizing control valve (23); when the pre-vacuum pumping is needed, the control valve (14) is closed, and the pre-vacuum pumping control valve (23) is opened; and after the pre-vacuum pumping is finished, the pre-vacuum pumping control valve (23) is closed, the control valve (14) is opened, and the main vacuum pumping part (1) works.

2. The rotating disc type centralized multi-stage vacuum pumping system as set forth in claim 1, wherein: the ring-shaped pre-vacuum pipe (22) is annular, and the ring-shaped pre-vacuum pipe (22) and the rotating shaft of the rotating disc (16) are coaxial.

3. The carousel-type centralized multi-stage vacuum pumping system as set forth in claim 1 or 2, wherein: still include dry gas and return partial (3) of filling, dry gas returns partial (3) of filling is responsible for joint (31), returns inflation gas pipeline (32) and returns inflation gas body control valve (33) including returning the inflation gas, it is responsible for joint (31) to pass through to return inflation gas pipeline (32) and inflation gas body control valve (33) with connector (15) are connected.

4. The rotating disc type centralized multi-stage vacuum pumping system as set forth in claim 3, wherein: the recharge gas control valve (33) is an electromagnetic valve.