阅读说明：本技术 适用在泵浦机台的排气结构及泵浦机台 (Exhaust structure suitable for pumping machine and pumping machine ) 是由 林敬渊 于 2019-04-17 设计创作，主要内容包括：本发明公开了一种适用在一泵浦机台且可以改变气体压缩比例的排气结构。所述排气结构设置在所述泵浦机台的一机台本体上且位在一进气管与一排气管之间。所述排气结构包含一固定端板及一第一挡部或一第二挡部,所述固定端板具有一挡部固定槽、至少一转子槽及一排气部。所述挡部固定槽连通所述排气部,所述第一挡部或所述第二挡部可拆卸地装设在所述挡部固定槽内且用以遮蔽所述挡部固定槽一第一部分或一第二部分。当气体通过所述挡部固定槽流通至所述排气部时,所述泵浦机台可借由第一挡部或第二挡部遮蔽所述第一部分或所述第二部分以产生不同的压缩比例。(The invention discloses an exhaust structure which is suitable for a pumping machine and can change the gas compression ratio. The exhaust structure is arranged on a machine table body of the pumping machine table and is positioned between an air inlet pipe and an exhaust pipe. The exhaust structure comprises a fixed end plate and a first blocking part or a second blocking part, wherein the fixed end plate is provided with a blocking part fixing groove, at least one rotor groove and an exhaust part. The blocking part fixing groove is communicated with the exhaust part, and the first blocking part or the second blocking part is detachably arranged in the blocking part fixing groove and used for shielding a first part or a second part of the blocking part fixing groove. When the gas flows to the exhaust part through the blocking part fixing groove, the pump station can shield the first part or the second part by the first blocking part or the second blocking part to generate different compression ratios.)

1. An exhaust structure suitable for a pumping machine and capable of changing gas compression ratio, the pumping machine comprises a machine body, an air inlet pipe, an exhaust pipe and a rotor, the air inlet pipe and the exhaust pipe are both arranged on the machine body, the rotor is arranged in the machine body,

it is characterized in that the method comprises the following steps:

the fixed end plate is arranged on the machine table body and positioned between the air inlet pipe and the exhaust pipe, the fixed end plate is provided with a blocking part fixing groove, at least one rotor groove and an exhaust part, the blocking part fixing groove is communicated with the exhaust part, the at least one rotor groove is used for fixing the rotor, and gas is circulated to the exhaust part through the blocking part fixing groove, so that the rotor can be used for discharging the gas from the air inlet pipe to the exhaust pipe;

a first blocking part detachably installed in the blocking part fixing groove and used for shielding a first part of the blocking part fixing groove;

when the gas is circulated to the exhaust part through the blocking part fixing groove, the first blocking part shields the first part of the blocking part fixing groove to generate a first compression ratio of the gas which is circulated to the exhaust pipe by the gas inlet pipe.

2. The exhaust structure as claimed in claim 1, further comprising a second blocking part detachably installed in the blocking part fixing groove and for shielding a second portion of the blocking part fixing groove, wherein when the gas is circulated to the exhaust part through the blocking part fixing groove, the second blocking part generates a second compression ratio of the gas circulated to the exhaust pipe from the gas inlet pipe by shielding the second portion of the blocking part fixing groove, the area of the second portion is greater than that of the first portion, and the second compression ratio is greater than that of the first compression ratio.

3. The exhaust structure according to claim 2, wherein:

the baffle fixing groove is an arc-shaped groove, the radian of the arc-shaped groove is less than 180 degrees, and the baffle fixing groove is arranged on the fixing end plate;

the second blocking part is an arc-shaped block, and the radian of the arc-shaped block is less than 180 degrees.

4. The exhaust structure according to claim 1, wherein:

the baffle fixing groove is an arc-shaped groove, the radian of the arc-shaped groove is less than 180 degrees, and the baffle fixing groove is arranged on the fixing end plate;

the first blocking part is an arc-shaped block, and the radian of the arc-shaped block is less than 180 degrees.

5. The exhaust structure according to claim 1, wherein a cooling portion is formed in the fixed end plate for circulating a cooling liquid.

6. The exhaust structure according to claim 1, wherein a gas line is formed in the fixed end plate for circulating a cleaning gas.

7. A pumping machine with an exhaust structure, comprising:

a machine body;

an air inlet pipe;

the air inlet pipe and the air outlet pipe are both arranged on the machine table body;

a rotor is arranged in the machine table body;

an exhaust structure, comprising:

the fixed end plate is arranged on the machine table body and positioned between the air inlet pipe and the exhaust pipe, the fixed end plate is provided with a blocking part fixing groove, at least one rotor groove and an exhaust part, the blocking part fixing groove is communicated with the exhaust part, the at least one rotor groove is used for fixing the rotor, and gas is circulated to the exhaust part through the blocking part fixing groove, so that the rotor can be used for discharging the gas from the air inlet pipe to the exhaust pipe;

a first blocking part detachably installed in the blocking part fixing groove and used for shielding a first part of the blocking part fixing groove;

when the gas is circulated to the exhaust part through the blocking part fixing groove, the first blocking part shields the first part of the blocking part fixing groove to generate a first compression ratio of the gas which is circulated to the exhaust pipe by the gas inlet pipe.

8. The pump apparatus of claim 7, wherein the exhaust structure further comprises a second blocking portion detachably disposed in the blocking portion fixing groove and configured to shield a second portion of the blocking portion fixing groove, wherein when the gas flows to the exhaust portion through the blocking portion fixing groove, the second blocking portion shields the second portion of the blocking portion fixing groove to generate a second compression ratio of the gas flowing from the gas inlet pipe to the gas outlet pipe, the area of the second portion is larger than that of the first portion, and the second compression ratio is larger than that of the first compression ratio.

9. The pumping station of claim 8, wherein:

the baffle fixing groove is an arc-shaped groove, the radian of the arc-shaped groove is less than 180 degrees, and the baffle fixing groove is arranged on the fixing end plate;

the second blocking part is an arc-shaped block, and the radian of the arc-shaped block is less than 180 degrees.

10. The pumping station of claim 7, wherein:

the baffle fixing groove is an arc-shaped groove, the radian of the arc-shaped groove is less than 180 degrees, and the baffle fixing groove is arranged on the fixing end plate;

the first blocking part is an arc-shaped block, and the radian of the arc-shaped block is less than 180 degrees.

11. The pumping apparatus as claimed in claim 7, wherein a cooling portion is formed in the fixed end plate for circulating a cooling fluid.

12. The pump apparatus of claim 7, wherein a gas line is formed in the fixed end plate for flowing a cleaning gas.

Technical Field

The present invention relates to an exhaust structure and a pump platform, and more particularly, to an exhaust structure capable of changing a gas compression ratio and a pump platform having the same.

Background

When exhausting, the spiral vacuum pump compresses the gas exhausted from the gas inlet end to the gas outlet end and then exhausts the gas. And the ratio of the exhaust end pressure to the intake end pressure (i.e., the compression ratio of the pump) depends on the angle of the exhaust port. The combination of each process and the pump has different optimal compression ratios according to the application of different processes, the temperature of the pump, the pumping efficiency, the pumping energy consumption and the like.

However, in order to adjust the compression ratio, the vacuum pump is required to adjust the angle of the exhaust port by replacing the exhaust port fitting at the end of the rotor. Since the fitting is generally fixedly installed at the end of the pump and is connected to the rest of the pump (e.g., a cooling pipe, a pump base, etc.), the fitting needs to be replaced as a whole after the rest of the parts connected to the fitting are removed when adjusting the compression ratio, thereby increasing the difficulty in adjusting the compression ratio. Therefore, how to simplify the structure for adjusting the compression ratio becomes a problem to be solved in the industry.

Disclosure of Invention

The invention provides an exhaust structure capable of changing gas compression ratio and a pumping machine table with the exhaust structure.

In order to achieve the above object, the present invention discloses an exhaust structure capable of changing a gas compression ratio, wherein the pump comprises a main body, an intake pipe, an exhaust pipe and a rotor, the intake pipe and the exhaust pipe are both disposed on the main body, the rotor is disposed in the main body, and the exhaust structure comprises a fixed end plate and a first stopper. The fixed end plate is arranged on the machine table body and located between the air inlet pipe and the exhaust pipe, and the fixed end plate is provided with a blocking part fixing groove, at least one rotor groove and an exhaust part. The blocking part fixing groove is communicated with the exhaust part, and the at least one rotor groove is used for fixing the rotor. Wherein gas is circulated to the gas discharge part through the stopper fixing groove, so that the rotor can be used to discharge the gas to the gas discharge pipe through the gas inlet pipe. The first blocking part is detachably arranged in the blocking part fixing groove and is used for shielding a first part of the blocking part fixing groove; when the gas is circulated to the exhaust part through the blocking part fixing groove, the first blocking part shields the first part of the blocking part fixing groove to generate a first compression ratio of the gas which is circulated to the exhaust pipe by the gas inlet pipe.

According to one embodiment of the present invention, the exhaust structure further includes a second blocking portion detachably disposed in the blocking portion fixing groove and configured to shield a second portion of the blocking portion fixing groove. When the gas flows to the exhaust part through the blocking part fixing groove, the second blocking part shields the second part of the blocking part fixing groove to generate a second compression ratio of the gas flowing to the exhaust pipe from the gas inlet pipe, the area of the second part is larger than that of the first part, and the second compression ratio is larger than that of the first compression ratio.

According to one embodiment of the present invention, the blocking portion fixing groove is an arc-shaped groove, the arc degree of the arc-shaped groove is less than 180 degrees, and the blocking portion fixing groove is disposed on the fixing end plate. The first blocking part or the second blocking part is an arc-shaped block, and the radian of the arc-shaped block is less than 180 degrees.

According to one embodiment of the present invention, a cooling portion is formed in the fixed end plate for circulating a cooling fluid.

According to one embodiment of the present invention, a gas line is formed in the fixed end plate for flowing a cleaning gas therethrough.

In summary, the exhaust structure of the present invention includes a fixed end plate and a first blocking portion and a second blocking portion that are replaceable. When the first blocking part is arranged in the blocking part fixing groove on the fixed end plate and is used for shielding a first part of the blocking part fixing groove, the first blocking part is used for shielding the first part so as to change the sectional area of the exhaust part of the fixed end plate, and the gas flows into the exhaust part of the fixed end plate when the gas is circulated to the exhaust pipe from the gas inlet pipe. By means of the design of the sectional area, the exhaust structure using the first blocking part can generate a first compression ratio. Similarly, when the second blocking part is arranged in the blocking part fixing groove on the fixed end plate and is used for shielding a second part of the blocking part fixing groove, the second blocking part changes the sectional area of the exhaust part by shielding the second part, and a second compression ratio is generated. Therefore, the design of the replacement baffle part can lead the pump machine station to generate different gas compression ratios. The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings.

Drawings

Fig. 1 is a schematic diagram of relative positions of an exhaust structure and a pump stage according to an embodiment of the invention.

Fig. 2 is a schematic perspective view of a venting structure according to a first embodiment of the present invention.

Fig. 3 is a perspective view of a first embodiment of an exhaust structure in another view according to an embodiment of the invention.

Fig. 4 is a perspective view of a second embodiment of an exhaust structure according to an embodiment of the invention.

FIG. 5 is a cross-sectional view of a first embodiment of a venting structure in accordance with an embodiment of the present invention.

Wherein the reference numerals are as follows:

1 pumping machine

10 exhaust structure

100 fixed end plate

100a cooling part

100b inlet of cooling part

100c cooling part outlet

100d sand escape hole

100e alignment member hole

100f gas pipeline hole

100g gas pipeline

101 blocking part fixing groove

102a first stop

102b first part

102c second stopper

102d second part

103 exhaust part

104 rotor slot

11 rotor

12 rotor housing

13 pumping chamber

14 cavity

15 drive mechanism

16 air inlet pipe

17 exhaust pipe

18 machine body

Detailed Description

Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting. Please refer to fig. 1, fig. 2, fig. 3 and fig. 5. Fig. 1 is a schematic diagram of relative positions of an exhaust structure and a pump platform according to an embodiment of the present invention, fig. 2 is a schematic perspective diagram of a first implementation of the exhaust structure according to the embodiment of the present invention, fig. 3 is a schematic perspective diagram of the first implementation of the exhaust structure according to the embodiment of the present invention at another view angle, and fig. 5 is a cross-sectional diagram of the first implementation of the exhaust structure according to the embodiment of the present invention.

As shown in fig. 1 and fig. 2, in the embodiment of the present invention, the pumping machine 1 adapted to the exhaust structure 10 includes a machine body 18, an air inlet pipe 16, an exhaust pipe 17 and a rotor 11, and the exhaust structure 10 includes a fixed end plate 100. The air inlet pipe 16 and the air outlet pipe 17 are both disposed on the machine body 18, and the rotor 11 is disposed in a rotor housing 12 of the machine body 18, wherein the rotor housing 12 and the air outlet structure 10 together form a pumping chamber 13. The rotor 11 is used to circulate gas from a chamber 14 of the process to be controlled to the exhaust pipe 17 via the inlet pipe 16 and the pumping chamber 13. The fixing end plate 100 is disposed on the machine body 18 and located between the air inlet pipe 16 and the air outlet pipe 17, and the fixing end plate 100 has a blocking portion fixing groove 101, at least one rotor groove 104, an air outlet portion 103, a cooling portion 100a, and a gas pipeline 100. The blocking portion fixing groove 101 is communicated with the gas discharging portion 103, and the at least one rotor groove 104 is used for fixing the rotor 11, wherein the gas flows from the cavity 14 to the pumping chamber 13 through the gas inlet pipe 16, and then flows to the gas discharging portion 103 through the blocking portion fixing groove 101, so that the rotor 11 can discharge the gas from the gas inlet pipe 16 to the gas discharging pipe 17.

As shown in fig. 2, 3 and 5, the exhaust structure 10 further includes a plurality of sand escape holes 100d, at least one alignment member hole 100e, at least one gas pipeline hole 100f, and a plurality of cooling portion inlets 100b and at least one cooling portion outlets 100 c. The sand escape hole 100d is used for escaping sand from a sand core during casting, and the at least one alignment piece hole 100e is used for aligning the exhaust structure 10 with a transmission mechanism 15 (as shown in fig. 1) during installation of the exhaust structure 10. The exhaust structure 10 is internally provided with a hollow cooling portion 100a and a water jacket, and meanwhile, the cooling liquid used by the pumping machine 1 can flow in from the at least one cooling portion inlet 100b, and flow out from the cooling portion outlet 100c, so as to reduce the operating temperature of the pumping machine 1 and the body temperature of the exhaust structure 10 when the pumping machine 1 operates. In the present embodiment, the cooling liquid is water, but the implementation is not limited thereto. In addition, the exhaust structure 10 further has a plurality of gas piping holes 100f and a gas piping 100g for flowing cleaning gas. In the process, the cleaning gas is introduced through the gas line 100g and flows out through an opening in the wall of the rotor groove 104, and is discharged together with the rest of the process gas through the gas discharge portion 103.

In addition, the exhaust structure 10 according to the first aspect of the embodiment of the present invention further includes a first blocking portion 102a detachably installed in the blocking portion fixing groove 101 and used for shielding a first portion 102b of the blocking portion fixing groove 101. In a second aspect of the embodiment of the present invention, the exhaust structure 10 further includes a second blocking portion 102c detachably disposed in the blocking portion fixing groove 101 and used for shielding a second portion 102d of the blocking portion fixing groove 101. The blocking portion fixing groove 101 is disposed on the fixing end plate 100 and is an arc groove perpendicular to the fixing end plate 100, and the radian of the arc groove is less than 180 degrees. The first blocking portion 102a and the second blocking portion 102c are both arc-shaped blocks, and the radian of each arc-shaped block is less than 180 degrees.

Please refer to fig. 1, fig. 2 and fig. 4. Fig. 4 is a perspective view of a second embodiment of an exhaust structure according to an embodiment of the invention.

During the operation of the pump platform 1, the gas flows into the pump chamber 13 from the cavity 14 and the inlet pipe 16 by the operation of the rotor 11. When the first stopper 102a is installed in the stopper fixing groove 101 and shields the first portion 102b of the stopper fixing groove 101, the sectional area of the gas flowing into the gas exhaust part 103 is a first sectional area, and the embodiment of the present invention is in a first aspect. When the pumping stage 1 is operated in the first mode, the gas is discharged from the pumping chamber 13 to the exhaust part 103 and the exhaust pipe 17 through the stopper fixing groove 101. Since the first blocking portion 102a shields the first portion 102b of the blocking portion fixing groove, the gas is compressed and has the first cross-sectional area, and the pumping stage 1 generates a first compression ratio. In a second aspect, the second stopper 102c is disposed in the stopper fixing groove 101 and covers the second portion 102d of the stopper fixing groove 101, so that the gas is compressed and has the second cross-sectional area, and the pumping machine 1 generates a second compression ratio. The first blocking portion 102a and the second blocking portion 102c may have different radians so that the first portion 102b and the second portion 102d have different areas. In this embodiment, the radian of the second blocking portion 102c is larger than the radian of the first blocking portion 102a, so that the second portion 102d blocked by the second blocking portion 102c has a larger area than the first portion 102 b. Thus, the second cross-sectional area of the gas is smaller than the first cross-sectional area, thereby causing the second compression ratio to be greater than the first compression ratio.

In summary, the pump platform 1 of the present invention has the air discharging structure 10, wherein the first blocking portion 102a is installed in the blocking portion fixing groove 101 of the air discharging structure 10 to shield the first portion 102b of the blocking portion fixing groove 101. At this time, the gas flows from the gas inlet pipe 16 to the gas outlet pipe 17, and the pumping machine 1 generates the first compression ratio. When the second blocking portion 102c is installed in the blocking portion fixing groove 101 of the exhaust structure 10 to shield the second portion 102d of the blocking portion fixing groove 101, the pump platform 1 generates the second compression ratio. Wherein the second portion 102d has a larger area than the first portion 102b such that the second compression ratio is larger than the first compression ratio. Therefore, by using the blocking parts with different radians to be installed in the blocking part fixing groove 101, the user can change the compression ratio of the gas generated by the pump platform 1. In addition, the exhaust structure does not need to be dismounted from the pump machine when the blocking part is replaced, so that the structure needed to be used when the compression ratio of the pump machine 1 is adjusted is simplified.

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.