CN115738538A - Filtering device - Google Patents

Abstract

The application discloses filter equipment, the novel nipple rectifier comprises a cylindrical shel, from supreme condensate water container part, one-level filtering portion and the second grade gas-water separation portion of having set gradually down in the barrel, the side of one-level filtering portion is provided with gas inlet and inside and is provided with eccentric one-level filter screen block group spare, the side of second grade gas-water separation portion is provided with gas outlet and inside and is provided with second grade gas-water separation part, the lower part of second grade gas-water separation portion has the condensate water outlet, the lower part of one-level filtering portion is provided with the condensate water pipe under, the lower extreme of condensate water pipe is located in the condensate water container part. Utilize above-mentioned filter equipment, use before the vacuum pump, can avoid quartz sand granule and moisture to get into the vacuum pump, avoid the vacuum pump impeller card to die and cause the condition emergence of evacuation efficiency step-down or inefficacy, make the high-efficient reliable operation of vacuum pump, promote the quality and the production stability of crucible.

Description

Filtering device

Technical Field

The invention belongs to the technical field of filtering equipment, and particularly relates to a filtering device.

Background

The quartz crucible is a tool for producing monocrystalline silicon, and is generally processed by an electric arc method, quartz sand is firstly added into a forming die, the quartz sand is uniformly laid on the inner wall of the forming die by using a forming rod, the quartz sand is melted and formed by heat generated by electrode arcing, and is taken out from the die after forming, then is cooled and is processed in a subsequent process to form a finished product. In the production process of the quartz crucible, when the crucible is melted, a vacuum pump is required to pump and reduce pressure of quartz sand within a specific time to form the quartz crucible, and whether the vacuum pumping pressure of the vacuum pump can meet the process requirement and whether the vacuum pumping is reliable and efficient is a necessary condition for determining whether a high-quality quartz crucible can be obtained. However, in the existing production process, because no filtering device is arranged in front of the vacuum pump, the vacuum pump can suck quartz sand particles and other impurities, the vacuum pump can be blocked due to long-time suction, an impeller of the vacuum pump is blocked, the suction pressure of the vacuum pump is insufficient, even the vacuum pump fails, and the key process in the crucible forming process cannot be effectively ensured and implemented.

Disclosure of Invention

In order to solve the problems, the invention provides a filtering device which is applied to the front of a vacuum pump and can prevent quartz sand particles and moisture from entering the vacuum pump, so that the situation that the vacuum pumping efficiency is lowered or the vacuum pumping efficiency is invalid due to the fact that an impeller of the vacuum pump is blocked is avoided, the vacuum pump is enabled to operate efficiently and reliably, and the quality and the production stability of a crucible are improved.

The invention provides a filtering device which comprises a barrel, wherein a condensed water containing part, a primary filtering part and a secondary gas-water separating part are sequentially arranged in the barrel from bottom to top, a gas inlet is formed in the side surface of the primary filtering part, an eccentric primary filtering screen block assembly is arranged in the primary filtering part, a gas outlet is formed in the side surface of the secondary gas-water separating part, a secondary gas-water separating part is arranged in the secondary gas-water separating part, a condensed water outlet hole is formed in the lower part of the secondary gas-water separating part, a condensed water pipe is arranged in the lower part of the primary filtering part, and the lower end of the condensed water pipe is positioned in the condensed water containing part.

Preferably, in the above-mentioned filtering apparatus, the primary filtering portion further includes a primary liquid receiving tray and a spiral guide cylinder, and the eccentric primary filter screen block assembly is located on the gas flow path.

Preferably, in the above-mentioned filter device, the second-stage gas-water separation part further includes a second-stage liquid receiving disc, the second-stage gas-water separation part includes a plurality of layers of columnar filter screen blocks, the plurality of layers of columnar filter screen blocks are located on the gas flow path, and the condensed water outlet is located on the second-stage liquid receiving disc.

Preferably, in the above-mentioned filter device, the second grade gas-water separation part is still including being used for fixing filter core auto-lock clamping ring, filter core locating pin and the filter core auto-lock cardboard of multilayer column filter screen piece, wherein, filter core auto-lock cardboard is fixed in on the filter core locating pin and can be circular rotary motion, filter core auto-lock clamping ring weld in on the inner wall of barrel, will the filter core auto-lock cardboard is rotatory outwards makes filter core auto-lock cardboard card in the lower part of filter core auto-lock clamping ring.

Preferably, in the above filtration device, a right-angle shut-off valve is provided on a side surface of the primary filtration unit near the bottom.

Preferably, in the above-described filter device, a condensed water discharge port is provided in a bottom portion of the condensed water storage unit.

Preferably, in the above-mentioned filtering apparatus, an overflow port is further provided in the condensed water containing portion, and the overflow port is located at a side surface that is a predetermined distance above the bottom of the condensed water containing portion.

Preferably, in the above-described filter device, a liquid level observation mirror is provided on a side surface of the condensed water storage unit located above the overflow port.

Preferably, in the above filtration device, a detachable flange member is provided on a side surface of the cylinder near the top end.

Preferably, in the above filtering device, a support member is further provided at the bottom of the cylinder.

According to the above description, the filtering device provided by the invention comprises the cylinder body, the condensed water containing part, the primary filtering part and the secondary gas-water separating part are sequentially arranged in the cylinder body from bottom to top, the side surface of the primary filtering part is provided with the gas inlet, the eccentric primary filtering net block component is arranged in the primary filtering part, the side surface of the secondary gas-water separating part is provided with the gas outlet, the secondary gas-water separating component is arranged in the secondary gas-water separating part, the lower part of the secondary gas-water separating part is provided with the condensed water outlet, the lower part of the primary filtering part is provided with the condensed water pipe, and the lower end of the condensed water pipe is positioned in the condensed water containing part, so that quartz sand particles and moisture can be prevented from entering the vacuum pump when the filtering device is applied to the vacuum pump, the situation that the vacuumizing efficiency is lowered or fails due to the clamping of the impeller of the vacuum pump is avoided, the vacuum pump is enabled to operate efficiently and reliably, and the quality and the production stability of the crucible are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of an embodiment of a filter apparatus according to the present invention;

FIG. 2 is a top view of section B-B of FIG. 1;

fig. 3 isbase:Sub>A top view of sectionbase:Sub>A-base:Sub>A of fig. 1.

Detailed Description

The core of the invention is to provide a filtering device, which is applied in front of a vacuum pump, can prevent quartz sand particles and moisture from entering the vacuum pump, and avoid the situation that the vacuum pump impeller is blocked to cause the vacuum pumping efficiency to be lowered or to be invalid, so that the vacuum pump can operate efficiently and reliably, and the quality and the production stability of a crucible can be improved.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 shows an embodiment of a filtering apparatus according to the present invention, where fig. 1 is a schematic diagram of an embodiment of a filtering apparatus according to the present invention, the filtering apparatus may include a cylinder 1, a condensed water containing part 2, a primary filtering part 3, and a secondary gas-water separating part 4 are sequentially arranged in the cylinder 1 from bottom to top, a gas inlet 5 is arranged on a side surface of the primary filtering part 3, an eccentric primary filter block assembly 31 is arranged inside the primary filtering part for intercepting solid impurities in gas from entering a subsequent flow path, a gas outlet 6 is arranged on a side surface of the secondary gas-water separating part 4, a secondary gas-water separating assembly 41 is arranged inside the secondary gas-water separating part for separating water from gas to avoid moisture in the gas entering the subsequent flow path, and a negative pressure is provided at a position of the gas outlet 6, including but not limited to forming a negative pressure thereon by a vacuum pump connected thereto, so as to drive the gas to enter the filtering apparatus from the gas inlet 5 and pass through the filtering part 3 and the secondary separating part 4, and then to be discharged from the gas outlet 6 after filtering the water from the filtering part 3 and the primary condensed water contained in the primary filtering part 32 under the water, and the primary condensed water containing the filtering part 32 is arranged below the primary condensed water to avoid accumulation.

It should be noted that, the above-mentioned filtering device is placed in front of a vacuum pump, the gas can enter the filtering device through the gas inlet 5 under the negative pressure of the gas outlet, and enter the eccentric primary filter block assembly 31 through diversion, the eccentric primary filter block assembly 31 can primarily filter coarse quartz sand particles and other impurities in the vacuum gas, then the filtered gas enters the secondary gas-water separation part 4 from bottom to top, and can be condensed into water drops in the secondary gas-water separation part 41, the liquid can fall to the bottom of the secondary gas-water separation part, and then flows down from the condensed water outlet, and finally falls into the condensed water containing part 2 after passing through the primary filtering part 3, and the gas after being filtered and separated from the gas can be discharged to subsequent equipment such as a vacuum pump through the gas outlet 6, so that the full and effective filtration of the vacuumized gas is completed, and the quartz sand particles, other impurities and moisture can be prevented from entering the vacuum pump.

According to the embodiment of the filter device provided by the invention, the filter device comprises the cylinder, the condensed water containing part, the primary filtering part and the secondary gas-water separating part are sequentially arranged in the cylinder from bottom to top, the side surface of the primary filtering part is provided with the gas inlet, the eccentric primary filtering net block component is arranged in the primary filtering part, the side surface of the secondary gas-water separating part is provided with the gas outlet, the secondary gas-water separating component is arranged in the secondary gas-water separating part, the lower part of the secondary gas-water separating part is provided with the condensed water outlet, the lower part of the primary filtering part is provided with the condensed water underwater pipe, and the lower end of the condensed water underwater pipe is positioned in the condensed water containing part.

In one embodiment of the above-mentioned filtering apparatus, with continued reference to fig. 1, the primary filtering portion 3 may further include a primary liquid receiving tray 32 and a spiral guide cylinder 33, and the eccentric primary filter block assembly 31 is located on the gas flow path. The gas inlet 5 and the guide cylinder 33 are inclined at a certain angle, so that the gas inlet is an eccentric design, specifically referring to fig. 2, fig. 2 is a top view of a section B-B of fig. 1, it should be noted that after the gas enters, the gas flows to the gas outlet 6 with lower gas pressure at the upper part along the outer side of the guide cylinder 33 because the guide cylinder 33 and the gas inlet 5 form an included angle, and the spiral guide cylinder can ensure that the gas can be continuously contacted with the eccentric primary filter screen block assembly and impurities in the gas can be filtered.

In another embodiment of the above-mentioned filtering apparatus, with continued reference to fig. 1, the secondary gas-water separating portion 4 may further include a secondary liquid receiving pan 42, and the secondary gas-water separating member 41 may include a multi-layer cylindrical filter block 411, and the multi-layer cylindrical filter block 411 is located on the gas flow path, and the above-mentioned condensed water outflow hole is located on the secondary liquid receiving pan 42. By utilizing the larger contact area between the multi-layer cylindrical filter screen block 411 and the gas flow path, the spirally rising gas can be condensed into water drops when meeting the multi-layer cylindrical filter screen block 411, so that the water in the flowing gas can be more effectively absorbed, the gas from the gas outlet is prevented from containing water, and the absorbed water can fall onto the secondary liquid receiving disc 42 under the action of gravity and then flow down from the condensed water outlet. Further, with reference to fig. 1 and fig. 3, fig. 3 isbase:Sub>A top view ofbase:Sub>A sectionbase:Sub>A-base:Sub>A of fig. 1, the second-stage gas-water separation component 41 may further includebase:Sub>A filter element self-locking press ring 412,base:Sub>A filter element positioning pin 413, andbase:Sub>A filter element self-locking clamp plate 414 for fixing the multi-layer cylindrical filter screen block 411, wherein the filter element self-locking clamp plate 414 is fixed on the filter element positioning pin 413 and can performbase:Sub>A circular rotation motion, the filter element self-locking press ring 412 is welded on an inner wall of the barrel 1, and the filter element self-locking clamp plate 414 is rotated outward to clamp the filter element self-locking clamp plate 414 atbase:Sub>A lower portion of the filter element self-locking press ring 412. By utilizing the connection mode, the multi-layer cylindrical filter screen blocks 411 can be more firmly fixed, and can be distributed on the gas flow path, so that the water absorption effect is better, other connection modes can be selected according to actual needs, and the connection mode is not limited here.

In another embodiment of the above-mentioned filtering apparatus, with reference to fig. 1, the side surface of the primary filtering portion 3 near the bottom is provided with a right-angle stop valve 7, and it should be noted that, when the primary liquid receiving tray 32 is full of liquid, if it reaches a certain height, liquid will be automatically discharged from the right-angle stop valve 7, so as to avoid the absorption of moisture in the gas due to too high liquid. Of course, other forms of water outlets can be selected according to actual needs, and the water outlets are not limited here. In addition, with reference to fig. 1, the bottom of the condensed water container 2 may be provided with a condensed water discharge port 8, which can be opened when water needs to be discharged, and an overflow port 9 may be further disposed in the condensed water container 2, where the overflow port 9 is located at a side surface of a preset distance above the bottom of the condensed water container 2, so that water can be discharged from the overflow port 9 to the outside under a long-time non-drainage condition, thereby avoiding excessive water in the condensed water container 2, so as to avoid the internal water filling, and it should be noted that an overflow port is formed by using a bent pipe in fig. 1, and other connection modes may be actually selected as needed, and there is no limitation. Furthermore, the side position of the condensed water containing part 2 above the overflow port 9 is provided with a liquid level observation mirror 10, so that an operator can observe the liquid level in the condensed water containing part conveniently, corresponding judgment and operation can be made, and further operation is facilitated.

In a preferred embodiment of the above-mentioned filtering device, the side surface of the cylinder 1 near the top end can be provided with a detachable flange part 11, and the flange part 11 is used for connecting with the top cover of the cylinder, when the parts in the cylinder need to be cleaned or replaced, the flange part 11 can be conveniently removed to remove the top cover, so that the parts in the filtering device can be further conveniently cleaned and replaced.

In another preferred embodiment of the above filtering device, the bottom of the cylinder 1 may be further provided with a support part 12, specifically four support legs, which can stably place the filtering device on the ground, although other support parts may be selected according to actual needs, and are not limited herein.

In conclusion, the filter device arranged in front of the vacuum pump can guide the flow of vacuum gas and control the flow direction of the vacuum gas, so that the gas enters the filter device in a spiral acceleration mode, and the filter device can be quickly and efficiently separated, wherein two stages of filter assemblies are arranged, one stage of filter assembly is used for filtering quartz sand and other foreign matter large granular media, the second stage of filter assembly is used for filtering water in the vacuum gas, and the filter device can achieve the filtering effect of gas-water separation.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. 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 invention. Thus, the present invention 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 (10)

1. The utility model provides a filter equipment, a serial communication port, the novel nipple rectifier comprises a cylindrical shel, from supreme condensate water container, one-level filtering portion and the second grade gas-water separation portion of having set gradually down in the barrel, the side of one-level filtering portion is provided with gas inlet and inside and is provided with eccentric one-level filter screen block group spare, the side of second grade gas-water separation portion is provided with gas outlet and inside and is provided with second grade gas-water separation part, the lower part of second grade gas-water separation portion has the condensate water outlet, the lower part of one-level filtering portion is provided with the condensate water pipe under, the lower extreme of condensate water pipe is located in the condensate water container.

2. The filtration apparatus of claim 1, wherein the primary filter portion further comprises a primary liquid receiving pan and a spiral draft tube, and the eccentric primary filter screen block assembly is located in the gas flow path.

3. The filtration apparatus of claim 1, wherein the secondary gas-water separation part further comprises a secondary liquid receiving tray, the secondary gas-water separation part comprises a plurality of layers of cylindrical filter screen blocks, the plurality of layers of cylindrical filter screen blocks are positioned on a gas flow path, and the condensed water outlet is positioned on the secondary liquid receiving tray.

4. The filtering device according to claim 3, wherein the second-stage gas-water separation part further comprises a filter element self-locking clamping ring, a filter element positioning pin and a filter element self-locking clamping plate, the filter element self-locking clamping plate is used for fixing the multilayer cylindrical filter screen block, the filter element self-locking clamping plate is fixed on the filter element positioning pin and can do circular rotation motion, the filter element self-locking clamping ring is welded on the inner wall of the barrel, and the filter element self-locking clamping plate rotates outwards to enable the filter element self-locking clamping plate to be clamped at the lower part of the filter element self-locking clamping ring.

5. The filter device according to claim 1, wherein a side surface of the primary filter portion adjacent to the bottom is provided with a right-angle cut-off valve.

6. The filtering device as claimed in claim 1, wherein a condensed water discharging port is provided at a bottom of the condensed water containing portion.

7. The filtering device as claimed in claim 6, wherein an overflow port is further provided in the condensed water containing portion, the overflow port being located at a side of the condensed water containing portion which is a predetermined distance above a bottom thereof.

8. The filtration apparatus as claimed in claim 7, wherein a liquid level observation mirror is provided at a side position of the condensed water containing portion above the overflow port.

9. A filter device as claimed in any one of claims 1 to 8, wherein the side of the cartridge adjacent the top end is provided with a removable flange member.

10. A filter device as claimed in any one of claims 1 to 8, wherein the base of the cartridge is further provided with support means.

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