CN210567509U - High-purity nitrogen gas recovery unit - Google Patents
High-purity nitrogen gas recovery unit Download PDFInfo
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- CN210567509U CN210567509U CN201920894294.5U CN201920894294U CN210567509U CN 210567509 U CN210567509 U CN 210567509U CN 201920894294 U CN201920894294 U CN 201920894294U CN 210567509 U CN210567509 U CN 210567509U
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Abstract
The utility model discloses a high-purity nitrogen recovery device in the technical field of vacuum furnaces, which comprises a vacuum furnace, a gas storage tank, a liquid nitrogen tank and a sealing cover, wherein the gas storage tank is fixedly arranged at the left side of the vacuum furnace, the liquid nitrogen tank is fixedly arranged at the left side of the gas storage tank, the sealing cover is fixedly arranged at the middle of the right side arm of the vacuum furnace, supporting columns are arranged at four corners of the bottom of the vacuum furnace, a pressure release valve is arranged at the middle of the top of the vacuum furnace, a manhole is arranged on the right side wall of the vacuum furnace, a filtering device is arranged at the upper side of the left side wall of the vacuum furnace, a first transmission pipe is arranged at the upper side of the right side wall of the gas storage tank, a pressure increasing valve is arranged at the middle section of the first transmission pipe, the high-purity nitrogen recovery device has reasonable structural design, the filtering device is additionally, the function of circulating cooling is realized, and the efficient utilization of nitrogen resources is realized.
Description
Technical Field
The utility model relates to a vacuum furnace technical field specifically is a high-purity nitrogen gas recovery unit.
Background
When the vacuum furnace is used for cooling by strong refrigeration, inert gas (usually high-purity nitrogen) is adopted for circulating cooling, so that the cooling of workpieces in the furnace is accelerated, and the efficiency is improved. Taking nitrogen as an example: high-pressure nitrogen generated after liquid nitrogen gasification is filled into a gas storage tank, and the nitrogen in the gas storage tank can be filled into production equipment according to actual requirements during production to realize the circulating cooling function. In the conventional production process, after the production of high-purity nitrogen in a vacuum furnace is finished, the high-purity nitrogen is discharged into the atmosphere through a pressure relief valve. And when the next furnace is in regeneration, new nitrogen is filled into the gas storage tank, and the process is circulated.
The existing vacuum furnace directly discharges gas of the vacuum furnace in the processing and production process, the gas cannot be recycled, the use cost of nitrogen resources is increased, the use efficiency is reduced, and therefore a high-purity nitrogen recovery device is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-purity nitrogen gas recovery unit to solve the problem that the gas with the vacuum furnace that proposes in the above-mentioned background art directly discharges, can't retrieve.
In order to achieve the above object, the utility model provides a following technical scheme: a high-purity nitrogen recovery device comprises a vacuum furnace, a gas storage tank, a liquid nitrogen tank and a sealing cover, wherein the gas storage tank is fixedly installed on the left side of the vacuum furnace, the liquid nitrogen tank is fixedly installed on the left side of the gas storage tank, the sealing cover is fixedly installed in the middle of a right side arm of the vacuum furnace, supporting columns are arranged at four corners of the bottom of the vacuum furnace, a pressure release valve is arranged in the middle of the top of the vacuum furnace, a manhole is arranged on the right side wall of the vacuum furnace, a filtering device is arranged on the upper side of the left side wall of the vacuum furnace, a first transmission pipe is arranged on the upper side of the right side wall of the gas storage tank, a booster valve is arranged in the middle of the first transmission pipe, a second transmission pipe is arranged on the lower side of the right side wall of the gas storage tank, an inflation valve is arranged in the middle of the second transmission, the upper side and the lower side of the left side wall of the sealing cover are provided with connecting blocks, and connecting pieces are arranged inside the connecting blocks.
Preferably, support column fixed connection is in the bottom four corners of vacuum furnace, relief valve fixed connection is in the middle of the top of vacuum furnace, the right side wall at the vacuum furnace is seted up to the manhole, filter equipment fixed connection is on the left side wall upside of vacuum furnace.
Preferably, the one end of first transmission pipe and the right side wall upside fixed connection of gas holder, the other end of first transmission pipe and filter equipment's left side wall fixed connection, pressure-increasing valve fixed connection is at the interlude of first transmission pipe, the one end of second transmission pipe and the right side wall downside fixed connection of gas holder, the other end of second transmission pipe and the left side wall downside fixed connection of vacuum furnace, inflation valve fixed connection is at the interlude of second transmission pipe, first transmission pipe and second transmission pipe all adopt stainless steel to make.
Preferably, one end of the third transmission pipe is fixedly connected with the upper side of the right side wall of the liquid nitrogen tank, the other end of the third transmission pipe is fixedly connected with the upper side of the left side wall of the gas storage tank, and the third transmission pipe is made of an aluminum alloy material.
Preferably, the connecting block is fixedly connected to the upper side and the lower side of the left side wall of the sealing cover, the connecting piece is in threaded connection with the inside of the connecting block, and the connecting piece is a bolt.
Compared with the prior art, the beneficial effects of the utility model are that: this high-purity nitrogen gas recovery unit, structural design is reasonable, and the filter equipment who adds is in cooperation pressure intensifying valve and is originally discharged the nitrogen gas recovery pressurization to the atmosphere, and the recharge gas holder is retrieved again, realizes circulative cooling's function, realizes the high-efficient utilization of nitrogen gas resource.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
fig. 2 is a schematic view of the side view structure of the utility model.
In the figure: the vacuum furnace 100, the support column 110, the pressure relief valve 120, the manhole 130, the filtering device 140, the gas storage tank 200, the first transfer pipe 210, the pressurization valve 211, the second transfer pipe 220, the aeration valve 221, the liquid nitrogen tank 300, the third transfer pipe 310, the pressure regulating valve 311, the sealing cover 400, the connecting block 410 and the connecting piece 411.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a following technical scheme: referring to fig. 1-2, a high purity nitrogen gas recovery device, which enables nitrogen gas recovery to realize a circulating cooling function and realizes efficient utilization of nitrogen gas resources, includes a vacuum furnace 100, a gas storage tank 200, a liquid nitrogen tank 300 and a sealing cover 400;
referring to fig. 1-2 again, the four corners of the bottom of the vacuum furnace 100 are provided with support pillars 110, the middle of the top of the vacuum furnace 100 is provided with a pressure release valve 120, the right side wall of the vacuum furnace 100 is provided with a manhole 130, the upper side of the left side wall of the vacuum furnace 100 is provided with a filter device 140, the vacuum furnace 100 is used for a furnace body for workpiece processing, the support pillars 110 are used for the installation and support of the vacuum furnace 100, the pressure release valve 120 is used for the pressure release of the vacuum furnace 100, the manhole 130 is used for the maintenance entrance of the vacuum furnace 100, and the filter device 140 is used for the filtration of impurities and toxic gases in the gas;
referring to fig. 1-2 again, the upper side of the right side wall of the gas storage tank 200 is provided with a first transmission pipe 210, the middle section of the first transmission pipe 210 is provided with a pressure increasing valve 211, the lower side of the right side wall of the gas storage tank 200 is provided with a second transmission pipe 220, the middle section of the second transmission pipe 220 is provided with an inflating valve 221, the gas storage tank 200 is fixedly installed at the left side of the vacuum furnace 100, specifically, the gas storage tank 200 is fixedly connected at the left side of the vacuum furnace 100 through the first transmission pipe 210 and the second transmission pipe 220, the gas storage tank 200 is used for storing nitrogen, the first transmission pipe 210 and the second transmission pipe 220 are used for transmitting nitrogen gas from the gas storage tank 200 to the vacuum furnace 100, the pressure increasing valve 211 is used for increasing nitrogen gas, and the inflating valve 221;
referring to fig. 1-2 again, the upper side of the right side wall of the liquid nitrogen tank 300 is provided with a third transmission pipe 310, the middle section of the third transmission pipe 310 is provided with a pressure regulating valve 311, the liquid nitrogen tank 300 is fixedly installed at the left side of the gas storage tank 200, specifically, the liquid nitrogen tank 300 is fixedly connected at the left side of the gas storage tank 200 through the third transmission pipe 310, the pressure regulating valve 311 is fixedly connected at the middle section of the third transmission pipe 310, the liquid nitrogen tank 300 is used for storing liquid nitrogen and providing recycling function, the third transmission pipe 310 is used for the nitrogen gas transmission function of the gas storage tank 200 and the liquid nitrogen tank 300, and the pressure regulating valve 311;
referring to fig. 1-2 again, the sealing cover 400 has a connecting block 400 on the upper and lower sides of the left sidewall thereof, a connecting member 411 is provided inside the connecting block 400, the sealing cover 400 is fixedly installed in the middle of the right sidewall of the vacuum furnace 100, specifically, the sealing cover 400 is screwed in the middle of the right sidewall of the vacuum furnace 100 through the connecting block 400 and the connecting member 411, the sealing cover 400 is used for sealing the vacuum furnace 100, and the connecting block 400 and the connecting member 411 are used for installing and connecting the sealing cover 400 and the vacuum furnace 100.
When in specific use, a person skilled in the art adjusts the pressure regulating valve 311 to enable high-pressure nitrogen generated after liquid nitrogen is gasified to be filled into one gas storage tank 200 through the third transmission pipe 310, the nitrogen in the gas storage tank 200 can be enabled to be filled into the vacuum furnace 100 for processing and production by opening the charging valve 220 according to actual requirements, then the nitrogen originally discharged into the atmosphere is recovered and pressurized by opening the pressurizing valve 211 manually and is filled into the gas storage tank again through the first transmission pipe 210 in cooperation with the filtering device 140, the use of nitrogen circulation cooling is realized, and during maintenance, the sealing cover 400 is opened to enter a manhole for maintenance.
Referring to fig. 1-2 again, the supporting columns 110 are fixedly connected to four corners of the bottom of the vacuum furnace 100, the pressure release valve 120 is fixedly connected to the middle of the top of the vacuum furnace 100, the manhole 130 is arranged on the right side wall of the vacuum furnace 100, and the filtering device 140 is fixedly connected to the upper side of the left side wall of the vacuum furnace 100 and provided with the manhole 130, so that the maintenance of maintenance personnel is facilitated.
Referring to fig. 1-2 again, one end of the first transfer pipe 210 is fixedly connected to the upper side of the right side wall of the gas storage tank 200, the other end of the first transfer pipe 210 is fixedly connected to the left side wall of the filter device 140, the pressure increasing valve 211 is fixedly connected to the middle section of the first transfer pipe 210, one end of the second transfer pipe 220 is fixedly connected to the lower side of the right side wall of the gas storage tank 200, the other end of the second transfer pipe 220 is fixedly connected to the lower side of the left side wall of the vacuum furnace 100, the gas filling valve 221 is fixedly connected to the middle section of the second transfer pipe 220, both the first transfer pipe 210 and the second transfer pipe 220 are made of stainless steel, and the first transfer pipe 210 and the second transfer pipe 220 made of stainless steel have a good corrosion resistance.
Referring to fig. 1-2 again, one end of the third transfer pipe 310 is fixedly connected to the upper side of the right side wall of the liquid nitrogen tank 300, the other end of the third transfer pipe 310 is fixedly connected to the upper side of the left side wall of the gas storage tank 200, the third transfer pipe 310 is made of an aluminum alloy material, and the third transfer pipe 310 made of the aluminum alloy material has a good corrosion resistance.
Referring to fig. 1-2 again, the connecting block 410 is fixedly connected to the upper and lower sides of the left sidewall of the sealing cover 400, the connecting member 411 is screwed inside the connecting block 410, the connecting member 411 is a bolt, and the bolt is used as the connecting member 411 to perform a good dismounting and mounting function.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. The utility model provides a high-purity nitrogen gas recovery unit which characterized in that: including vacuum furnace (100), gas holder (200), liquid nitrogen container (300) and sealed lid (400), the left side fixed mounting of vacuum furnace (100) gas holder (200), the left side fixed mounting of gas holder (200) liquid nitrogen container (300), fixed mounting in the middle of the right side arm of vacuum furnace (100) sealed lid (400), the bottom four corners of vacuum furnace (100) has support column (110), relief valve (120) have in the middle of the top of vacuum furnace (100), the right side wall of vacuum furnace (100) has manhole (130), the left side wall upside of vacuum furnace (100) has filter equipment (140), the right side wall upside of gas holder (200) has first transmission pipe (210), the interlude of first transmission pipe (210) has booster valve (211), the right side wall downside of gas holder (200) has second transmission pipe (220), the middle section of the second delivery pipe (220) is provided with an inflation valve (221), the upper side of the right side wall of the liquid nitrogen tank (300) is provided with a third delivery pipe (310), the middle section of the third delivery pipe (310) is provided with a pressure regulating valve (311), the upper side and the lower side of the left side wall of the sealing cover (400) are provided with connecting blocks (410), and the connecting blocks (411) are arranged inside the connecting blocks (410).
2. The apparatus for recovering high purity nitrogen gas according to claim 1, wherein: support column (110) fixed connection is in the bottom four corners of vacuum furnace (100), relief valve (120) fixed connection is in the middle of the top of vacuum furnace (100), the right side wall at vacuum furnace (100) is seted up in manhole (130), filter equipment (140) fixed connection is on the left side wall upside of vacuum furnace (100).
3. The apparatus for recovering high purity nitrogen gas according to claim 1, wherein: one end of the first transmission pipe (210) is fixedly connected with the upper side of the right side wall of the air storage tank (200), the other end of the first transmission pipe (210) is fixedly connected with the left side wall of the filtering device (140), the booster valve (211) is fixedly connected with the middle section of the first transmission pipe (210), one end of the second transmission pipe (220) is fixedly connected with the lower side of the right side wall of the air storage tank (200), the other end of the second transmission pipe (220) is fixedly connected with the lower side of the left side wall of the vacuum furnace (100), the inflation valve (221) is fixedly connected with the middle section of the second transmission pipe (220), and the first transmission pipe (210) and the second transmission pipe (220) are both made of stainless steel.
4. The apparatus for recovering high purity nitrogen gas according to claim 1, wherein: one end of the third transmission pipe (310) is fixedly connected with the upper side of the right side wall of the liquid nitrogen tank (300), the other end of the third transmission pipe (310) is fixedly connected with the upper side of the left side wall of the gas storage tank (200), and the third transmission pipe (310) is made of aluminum alloy materials.
5. The apparatus for recovering high purity nitrogen gas according to claim 1, wherein: connecting block (410) fixed connection is downside on the left side wall of sealed lid (400), connecting piece (411) threaded connection is in the inside of connecting block (410), connecting piece (411) are the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920894294.5U CN210567509U (en) | 2019-06-14 | 2019-06-14 | High-purity nitrogen gas recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920894294.5U CN210567509U (en) | 2019-06-14 | 2019-06-14 | High-purity nitrogen gas recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210567509U true CN210567509U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920894294.5U Active CN210567509U (en) | 2019-06-14 | 2019-06-14 | High-purity nitrogen gas recovery unit |
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| CN (1) | CN210567509U (en) |
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- 2019-06-14 CN CN201920894294.5U patent/CN210567509U/en active Active
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