CN209671164U - A kind of explosion-proof type vacuum pump - Google Patents
A kind of explosion-proof type vacuum pump Download PDFInfo
- Publication number
- CN209671164U CN209671164U CN201920012974.XU CN201920012974U CN209671164U CN 209671164 U CN209671164 U CN 209671164U CN 201920012974 U CN201920012974 U CN 201920012974U CN 209671164 U CN209671164 U CN 209671164U
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- explosion
- vacuum pump
- air inlet
- inlet pipe
- outer housing
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Abstract
The utility model discloses a kind of explosion-proof type vacuum pumps, including vacuum pump, pump air inlet pipe has been provided at the top of vacuum pump, it is provided on the right side of vacuum pump and pumps out tracheae, explosion-proof casing is covered with above vacuum pump, it is provided on explosion-proof casing for pump air inlet pipe and pumps out the through-hole that tracheae passes through, escape pipe is provided at the top of explosion-proof casing, air inlet pipe is provided on the right side of explosion-proof casing, outer housing is covered with above explosion-proof casing, it is provided on outer housing respectively for pumping air inlet pipe, pump out tracheae, the through-hole that escape pipe and air inlet pipe pass through, bottom surrounding along outer housing is provided with trunnion, the bottom of outer housing is provided with relief valve.A kind of explosion-proof type vacuum pump disclosed by the utility model, can effectively improve the explosion-proof capabilities of vacuum pump, improve the safety in utilization of vacuum pump.
Description
Technical field
The utility model relates to a kind of explosion-proof type vacuum pumps, belong to vacuum pump explosion-proof technology field.
Background technique
With the development that vacuum is applied, the type of vacuum pump has been developed that many kinds, pumping speed are raised to from zero point per second is several
Hundreds of thousands per second, millions of liters；As vacuum technique is applied to the requirement of pressure range in the field of production and scientific research
It is more and more wider, it needs just to be able to satisfy production and scientific research after being evacuated jointly by several vacuum pump groups at vacuum-pumping system mostly
The requirement of process, since vacuum is very wide using the range of operating pressure involved in department, the vacuum of any type
Pump is impossible to be completely suitable for all working pressure ranges, can only be according to different working pressure ranges and different work
It is required that using different types of vacuum pump；The working environment of vacuum pump makes vacuum pump need very high safety when practical
Property meet the requirements, but existing vacuum pump be related at explosion-proof aspect it is not deep so that there are still explosions in use for vacuum pump
Hidden danger.
Summary of the invention
To solve the deficiencies in the prior art, the utility model provides a kind of explosion-proof type vacuum pump, can effectively improve vacuum
The explosion-proof capabilities of pump improve the safety in utilization of vacuum pump.
The technology employed by the present utility model is
A kind of explosion-proof type vacuum pump, including vacuum pump have been provided with pump air inlet pipe, the right side of vacuum pump at the top of vacuum pump
It is provided with and pumps out tracheae, explosion-proof casing is covered with above vacuum pump, be provided on explosion-proof casing for pump air inlet pipe and pumped out
The through-hole that tracheae passes through is provided with escape pipe at the top of explosion-proof casing, air inlet pipe, explosion-proof casing is provided on the right side of explosion-proof casing
Top be covered with outer housing, be provided on outer housing respectively for pump air inlet pipe, pump out tracheae, escape pipe and air inlet pipe and pass through
Through-hole, the bottom surrounding of outer housing is provided with trunnion, the bottom of outer housing is provided with relief valve.
Preferably, valve is provided in escape pipe and air inlet pipe.
Further preferred is provided with sealing ring in pump air inlet pipe and the through-hole junction for pumping out tracheae and explosion-proof casing,
It is being also equipped with sealing ring with the through-hole junction of outer housing respectively for pumping air inlet pipe, pumping out tracheae, escape pipe and air inlet pipe, it is close
Seal ring improves whole sealing performance.
Further preferred, is provided with oxygen analyser in escape pipe, oxygen analyser can be shown in explosion-proof casing in real time and effectively
The content of portion's oxygen.
Further preferred, is covered with rupture pressure disc on the outer surface of outer housing.
Further preferred, outer housing is double-layer hollow structure, and fire retardant is filled with inside double-layer hollow structure.
It is further preferred, inert gas is filled with inside explosion-proof casing.
The utility model has the beneficial effects that:
The pump body portion of vacuum pump is arranged in explosion-proof casing the utility model, and inertia is filled with inside explosion-proof casing
Gas improves the safety of vacuum pump so that vacuum pump body part is isolated with outside air；The shell of double-layer hollow structure
The fire retardant of internal portion's filling, further improves the safety of vacuum pump.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the left plate schematic diagram of outer housing；
Main appended drawing reference meaning is as follows in figure:
1, vacuum pump, 2, explosion-proof casing, 3, outer housing, 4, relief valve, 11, pump air inlet pipe, 12, pump out tracheae, 21, outlet
Pipe, 22, air inlet pipe, 23, oxygen analyser, 31, trunnion.
Specific embodiment
Specific introduction is done to the utility model with reference to the accompanying drawings and examples.
As shown in Figs. 1-2: the present embodiment is a kind of explosion-proof type vacuum pump, including vacuum pump 1, the top setting of vacuum pump 1
There is pump air inlet pipe 11, the right side of vacuum pump 1, which is provided with, pumps out tracheae 12, it is covered with explosion-proof casing 2 in the top of vacuum pump 1,
It is provided on explosion-proof casing 2 for pump air inlet pipe 11 and pumps out the through-hole that tracheae 12 passes through, the top of explosion-proof casing 2 is provided with outlet
Pipe 21, the right side of explosion-proof casing 2 are provided with air inlet pipe 22, and the top of explosion-proof casing 2 is covered with outer housing 3, set on outer housing 3
Be equipped with respectively for pump air inlet pipe 11, pump out the through-hole that tracheae 12, escape pipe 21 and air inlet pipe 22 pass through, along the bottom of outer housing 3
Surrounding is provided with trunnion 31, and the bottom of outer housing 3 is provided with relief valve 4.
Referring to Fig. 1, valve is provided in escape pipe 21 and air inlet pipe 22.
In the present embodiment, pump air inlet pipe 11 and the through-hole junction for pumping out tracheae 12 and explosion-proof casing 2 are provided with sealing
Ring is also set with the through-hole junction of outer housing 3 respectively for pumping air inlet pipe 11, pumping out tracheae 12, escape pipe 21 and air inlet pipe 22
It is equipped with sealing ring.
Referring to Fig. 1, escape pipe 21 is provided with oxygen analyser 23.
In the present embodiment, rupture pressure disc is covered on the outer surface of outer housing 3.
In the present embodiment, inert gas is filled with inside explosion-proof casing 2.
Referring to fig. 2, outer housing 3 is double-layer hollow structure, and fire retardant is filled with inside double-layer hollow structure.
The working principle of the utility model are as follows: open the valve on air inlet pipe 22 and escape pipe 21, inert gas is filled
Into in explosion-proof casing 2, after the oxygen content shown on oxygen analyser 23 is reduced to certain value and does not change, air inlet pipe is simultaneously closed off
22 and escape pipe 21 on valve；The pump body portion of vacuum pump is enclosed in shell filled with inert gas inside explosion-proof casing 2
It is interior, so that pump body portion, which is not contacted with external air, thereby reduces the case where generating accidental explosion；In double-layer hollow structure
Outer housing 3 inside be filled with fire retardant, can effectively completely cut off threat of the external open fire to vacuum pump.
The pump body portion of a kind of explosion-proof type vacuum pump provided by the utility model, vacuum pump is arranged in explosion-proof casing, and
The peace of vacuum pump is improved so that vacuum pump body part is isolated with outside air filled with inert gas inside explosion-proof casing
Quan Xing；The fire retardant filled inside the outer housing of double-layer hollow structure, further improves the safety of vacuum pump.
The above is only the preferred embodiment of the utility model patent, it is noted that for the general of the art
For logical technical staff, under the premise of not departing from the utility model patent principle, several improvements and modifications can also be made, this
A little improvements and modifications also should be regarded as the protection scope of the utility model patent.
Claims (6)
1. a kind of explosion-proof type vacuum pump, it is characterised in that: including vacuum pump (1), be provided with pump at the top of the vacuum pump (1)
Air inlet pipe (11) is provided on the right side of the vacuum pump (1) and pumps out tracheae (12), is covered with above the vacuum pump (1)
Explosion-proof casing (2) is provided on the explosion-proof casing (2) for pump air inlet pipe (11) and pumps out the through-hole that tracheae (12) passes through, institute
It states and is provided at the top of explosion-proof casing (2) escape pipe (21), be provided with air inlet pipe (22), institute on the right side of the explosion-proof casing (2)
State and be covered with outer housing (3) above explosion-proof casing (2), be provided on the outer housing (3) respectively for pump air inlet pipe (11),
The through-hole that tracheae (12), escape pipe (21) and air inlet pipe (22) pass through is pumped out, the bottom surrounding along the outer housing (3) is provided with
The bottom of trunnion (31), the outer housing (3) is provided with relief valve (4).
2. a kind of explosion-proof type vacuum pump according to claim 1, which is characterized in that the escape pipe (21) and air inlet pipe
(22) valve is provided on.
3. a kind of explosion-proof type vacuum pump according to claim 1, which is characterized in that in pump air inlet pipe (11) and pump out tracheae
(12) the through-hole junction of explosion-proof casing (2) is provided with sealing ring, for pumping air inlet pipe (11), pumping out tracheae (12), outlet
It manages the through-hole junction of (21) and air inlet pipe (22) respectively with outer housing (3) and is also equipped with sealing ring.
4. a kind of explosion-proof type vacuum pump according to claim 1, which is characterized in that be provided in the escape pipe (21)
Oxygen analyser (23).
5. a kind of explosion-proof type vacuum pump according to claim 1, which is characterized in that pasted on the outer surface of outer housing (3)
It is covered with rupture pressure disc.
6. a kind of explosion-proof type vacuum pump according to claim 1, which is characterized in that the outer housing (3) is double-deck empty
Core structure is filled with fire retardant inside the double-layer hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920012974.XU CN209671164U (en) | 2019-01-04 | 2019-01-04 | A kind of explosion-proof type vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920012974.XU CN209671164U (en) | 2019-01-04 | 2019-01-04 | A kind of explosion-proof type vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209671164U true CN209671164U (en) | 2019-11-22 |
Family
ID=68564861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920012974.XU Active CN209671164U (en) | 2019-01-04 | 2019-01-04 | A kind of explosion-proof type vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209671164U (en) |
-
2019
- 2019-01-04 CN CN201920012974.XU patent/CN209671164U/en active Active
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