CN207145169U - A kind of vacuum system - Google Patents
A kind of vacuum system Download PDFInfo
- Publication number
- CN207145169U CN207145169U CN201721069938.4U CN201721069938U CN207145169U CN 207145169 U CN207145169 U CN 207145169U CN 201721069938 U CN201721069938 U CN 201721069938U CN 207145169 U CN207145169 U CN 207145169U
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- China
- Prior art keywords
- vacuum
- pump
- magnetic valve
- conduit
- stage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
It the utility model is related to a kind of vacuum system, the vacuum system includes vacuum pump system and vacuum buffer system, vacuum pump system includes primary pump, two stage pump and the first magnetic valve being sequentially connected with, vacuum buffer system includes vacuum buffer tank, the first vacuum transducer and second solenoid valve, one end of first magnetic valve is connected with the two stage pump, the other end connection vacuum buffer tank of first magnetic valve, first vacuum transducer is connected with vacuum buffer tank, and vacuum buffer tank is connected by second solenoid valve with the vacuum end of conduit；So that realizing rapid vacuumizing during conduit vacuumizes, reduce the time that operation waits, improve the efficiency vacuumized.
Description
Technical field
It the utility model is related to vacuum instrument field, and in particular to a kind of vacuum system.
Background technology
With the extensive use of Refrigeration Technique, its principle is evaporated by the heat absorption of liquid refrigerant, takes away tissue heat,
Make target site cryoablation, cell tissue is killed by cooling, in order to prevent ablation catheter from being lost on blood flow paths
Excessive energy is, it is necessary to there is supporting vacuum heat-preserving technology.Existing vacuum heat-preserving technology only has vacuum pump system, system master
Vacuumized if being coordinated by primary pump and two stage pump and being directly connected to conduit, enable vacuum be extracted into a high value so as to
Protection ablation catheter is reduced as far as energy loss in non-frozen ablation areas, but vacuum is from 9.0*102Torr passes through true
Empty set system is extracted into conduit working vacuum degree 1.0*10-3Below Torr is, it is necessary to first open primary pump, when vacuum reaches 1.0*10- 1During below Torr, two stage pump could be opened and continue to vacuumize, this process needs longer time, and after operation terminates
Vacuum pump system is closed, two stage pump slowly slows down, and electric brake is closed, and whole process needs 3-5 minutes again, and when vacuum reaches
To 1.0*100During more than Torr, conduit is pulled up, opens magnetic valve, vacuum pump system takes out air (broken sky), when vacuum reaches
9.0*102During Torr, pass hull closure, it is seen that vavuum pump slowly stops being also required to the long period to pass hull closure, so as to add
Operation duration.In addition, traditional vacuum technique is all to be used as primary pump from oil pump, and it is to start soon the advantages of oil pump, it is prolonged resistance to
With, but oil pump can produce oil vapour, its meeting contaminated operation environment, so developed country all forbids in regulation under medical environment
Use oil pump.
Chinese patent CN201310309448.7 discloses a kind of cryoablation treatment system, and the vacuum system has vacuum
Pump unit, vacuum pressure sensor and vacuum valve.Vacuum pump unit has a two-stage type vavuum pump.The first order, which is one, to produce
The rough pump of the vacuum pressure (1 support=1mmHg) of raw 10 supports.The second level can provide the vacuum level of a 10-8 support, its
It can be a turbomolecular pump.These pumps work together as a single pump unit.The outlet of vacuum pump unit is split out very
Pneumatics force snesor and vacuum valve.Vacuum valve can be an electronically controlled ON/OFF magnetic valve closed usually.But this is special
The technical scheme of profit is still no to solve the problems, such as that the pumpdown time is long, time-consuming for operation.
The content of the invention
In view of the drawbacks described above of prior art, technical problem to be solved in the utility model, which is to provide one kind, quickly to take out
The vacuum system of vacuum.
Technical scheme is used by the utility model solves its technical problem：
A kind of vacuum system, including vacuum pump system and vacuum buffer system, the vacuum pump system include being sequentially connected with
Primary pump, two stage pump and the first magnetic valve, the vacuum buffer system includes vacuum buffer tank, the first vacuum transducer and the
Two magnetic valves, one end of first magnetic valve are connected with the two stage pump, described in the other end connection of first magnetic valve
Vacuum buffer tank, first vacuum transducer are connected with the vacuum buffer tank, and the vacuum buffer tank passes through described second
Magnetic valve connects with the vacuum end of conduit.
Further technical scheme is used by the utility model solves its technical problem：
Preferably, open to atmosphere 3rd magnetic valve of the company of setting between the primary pump and two stage pump, in the two stage pump
(port of export is provided with the second vacuum transducer.
It is furthermore preferred that four-way connector is provided with pipeline between the primary pump and the two stage pump, described four
The two of which port for leading to fitting connects with the primary pump and the two stage pump respectively, the 3rd of the four-way connector
Port connects with the 3rd magnetic valve, and the 4th port of the four-way connector connects with one end of the 4th magnetic valve, institute
The other end for stating the 4th magnetic valve connects with the air return end of conduit, the primary pump) pass through the 4th magnetic valve and conduit
Air return end connects.
It is furthermore preferred that it is provided with the 5th electromagnetism on pipeline between the 4th magnetic valve and the air return end of the conduit
Valve, one end connection air of the 5th magnetic valve, the other end connect the air return end of the conduit.
Preferably, the primary pump is the vavuum pump that low vacuum is provided for the two stage pump, including：Membrane pump, vortex pump,
Lobe pump.
Preferably, the two stage pump is the vavuum pump that high vacuum or ultrahigh vacuum are provided for the vacuum system, including：Point
Sub- pump, cryosorption pump, sputter ion pump.
Compared with the existing technology, it is as follows with progress the advantages of the utility model：
1st, vacuum system provided by the utility model is provided with vacuum buffer tank so that real during conduit vacuumizes
Existing rapid vacuumizing, reduce the time that operation waits, after operation terminates, can quickly stop vacuum pump system, further
Ground reduces the time that operation waits.
2nd, the vavuum pump that the utility model is selected all is dry vacuum pump, can so overcome oil vapour during from oil pump dirty
The problem of contaminating surgical environments.Preferable membrane pump and molecular pump are both dry vacuum pump again with small volume, cheap excellent
Point, easy systematization and commercialization.
3rd, open to atmosphere 3rd electromagnetism of vacuum system provided by the utility model company of setting between primary pump and two stage pump
Valve, primary pump are vacuumized and are difficult with after long-time disables, and primary pump, which is not used, mainly due to long-time causes water to steam
Gas enters, and at this moment starts primary pump, and vacuum does not reach minimum start of two stage pump and required, so as to cause two stage pump not start,
The normal use of equipment is have impact on, now opens the 3rd magnetic valve, air is directly taken out by primary pump, discharges the water in primary pump
Steam, improve the utilization rate of primary pump so that two stage pump normally can start and run.
4th, vacuum system provided by the utility model had not only been provided with the 3rd magnetic valve but also set between primary pump and two stage pump
Put the 4th magnetic valve of connecting tube air return end, one end connection air of the 5th magnetic valve, other end connecting tube air return end,
In two stage pump in use, closing the 4th magnetic valve, the 5th magnetic valve is opened, return-air directly sprays to air, when two stage pump stops making
Used time, the 5th magnetic valve is closed, open the 4th magnetic valve, primary pump directly draws back gas, and being pumped back to gas by one-level can improve
The flow velocity of return-air, air inlet and the conversion of return-air are increased, improve the performance of conduit.
Brief description of the drawings
Fig. 1 is the structural representation of the first vacuum system；
Fig. 2 is the structural representation of second of vacuum system；
Fig. 3 is the structural representation of the third vacuum system；
Wherein, 100 be vacuum system, and 110 be vacuum pump system, and 111 be primary pump, and 112 be two stage pump, and 113 be first
Magnetic valve, 114 be the 3rd magnetic valve, and 115 be the second vacuum transducer, and 116 be the 4th magnetic valve, and 117 be the 5th magnetic valve,
120 be vacuum buffer system, and 121 be vacuum buffer tank, and 122 be the first vacuum transducer, and 123 be second solenoid valve, and A is conduit
Vacuum end, B is the air return end of conduit, and C is air.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, develop simultaneously reality referring to the drawings
Example is applied the utility model is described in detail.
Embodiment 1：
As shown in figure 1, a kind of vacuum system 100, the vacuum system 100 includes vacuum pump system 110 and vacuum buffer
System 120, the vacuum pump system 110 include primary pump 111, the and of two stage pump 112 being sequentially connected with by pipeline fluid sealing
First magnetic valve 113, the vacuum buffer system 120 include vacuum buffer tank 121, the first vacuum transducer 122 and the second electricity
Magnet valve 123, one end of first magnetic valve 113 are connected with the two stage pump 112, the other end and the vacuum buffer tank 121
It is tightly connected by pipeline fluid, first vacuum transducer 122 is connected with threeway respectively with the vacuum buffer tank 121
The both ends of part are tightly connected by pipeline fluid, the 3rd end of the three-way connector and one end of the second solenoid valve 123
It is tightly connected by pipeline fluid, the other end of the second solenoid valve 123 passes through pipe with one end of equipment vacuum snap joint
The connection of road Fluid Sealing, the pin end and catheter fluid for the vacuum end A that the other end of equipment vacuum snap joint passes through conduit are close
Envelope connection.When first magnetic valve 113 is opened, the vacuum buffer system 120 circulates with the vacuum pump system 110,
When first magnetic valve 113 and second solenoid valve 123 are switched on, the vacuum end A of conduit and the vacuum buffer system
120 and the vacuum pump system 110 be in fluid communication.The primary pump 111 is membrane pump, and the two stage pump 112 is molecular pump.
The sealed connection includes spinning and snapping.
After cryoablation equipment is pushed into operating room, doctor also starts vacuum pump system 110 in preparatory stage can,
Without just starting vacuum pump system 110 after waiting conduit installation, be advantageous to save the time.Open vacuum pump system
After 110, first primary pump 111 is carried out to take out the i.e. broken vacancy reason of air, the performance of primary pump 111 is lifted, opens the first magnetic valve
113 and second solenoid valve 123, vacuum buffer tank 121 circulated with vacuum pump system 110, vacuum buffer tank 121 and air C flow
It is logical, therefore primary pump 111 and air C circulates, and after the completion of broken sky, second solenoid valve 123 is closed, due to second solenoid valve 123
Closing vacuum buffer tank 121 is not circulated with air C, and because vacuum buffer tank 121 and the first vacuum transducer 122 flow
Body connects, and the vacuum in vacuum buffer tank 121 can be judged by observing the first vacuum transducer 122, so as to judge one
Level pump 111, the unlatching situation of two stage pump 112.Primary pump 111 starts, because primary pump 111 and the fluid of vacuum buffer tank 121 connect
It is logical, primary pump 111 to the evacuating air in vacuum buffer tank 121, with the first vacuum transducer 122 vacuum it is slow
Reduce, when vacuum is less than 1.0*10-1During Torr, two stage pump 112 starts, and vacuum rapid decrease, is finally reached 1.0*10- 5Torr, when doctor is ready to complete, the vacuum end A of conduit pin end insertion equipment vacuum snap joint simultaneously snaps connection, and opens
Second solenoid valve 123, the vacuum end of vacuum buffer tank 121 and conduit circulate, and the air in conduit vacuum chamber flows into vacuum buffer
In tank 121, because the volume of vacuum buffer tank 121 is far longer than the volume of conduit vacuum chamber, so even if vacuum buffer tank 121
Vacuum have it is certain reduce but reduce little, on influenceing can be ignored caused by vacuum pump system 110, conduit can
To begin to use, and because vacuum pump system 110 connects with vacuum buffer system 120, vacuum pump system 110 continues to operate,
Observe vacuum in the first vacuum transducer 122 and be finally reached 1.0*10-5During Torr, the first magnetic valve 113 is closed, now very
Empty pumping system 110 does not circulate with vacuum buffer tank 121, because the volume of vacuum buffer tank 121 is far longer than conduit vacuum chamber
Volume, so by the vacuum can supplying duct vacuum of vacuum buffer tank 121 itself, the vacuum of conduit declines quickly.
The time of termination of pumping can be so saved, greatly accelerates the flow of operation.The stand-by period is operated so as to reduce doctor, is also reduced
The loss of vacuum pump system 110.Close vacuum pump system 110, the slowly closing of two stage pump 112, when two stage pump 112 completely closes
The slowly closing again of rear stage pump 111, until primary pump 111 completely closes.After the completion of conduit use, second solenoid valve is closed
123, conduit is pulled up, closes cryoablation equipment, terminates operation.This vacuum feed conduit by vacuum buffer tank 121
Vacuum, the reduction speed of conduit vacuum can be accelerated, serve the effect of rapid vacuumizing.
Embodiment 2：
As shown in Fig. 2 based on embodiment 1, difference is：Pass through between the primary pump 111 and two stage pump 112
Three-way connection sets even open to atmosphere 3rd magnetic valve 114, and the port of export of the two stage pump 112 is provided with the second vacuum sensing
Device 115.
Because primary pump 111 is membrane pump so when hospital is for a long time without using (evening or 3 day time, seeing urban air
Wetness), easily there is vapor to concentrate in primary pump 111, cause the vacuum of primary pump 111 to be taken out to go down, primary pump
111 the 3rd magnetic valves 114 of connection directly take out air, increase the load of primary pump 111, help to remove the water in primary pump 111
Steam.
Before vacuum pump system 110 is opened, the 3rd magnetic valve 114 is opened, opens primary pump 111, primary pump 111 is taken out greatly
Gas, load is larger, and vacuum is low vacuum, understands that vacuum does not reach two stage pump 112 by observing the second vacuum transducer 115
Minimum unlatching requirement, therefore two stage pump 112 is not turned on, and so individually can be taken out air with primary pump 111, be excluded primary pump
The vapor assembled in 111, improve the utilization rate of primary pump 111 so that two stage pump can normally start, when primary pump 111 operates
After a period of time, the 3rd magnetic valve 114 is closed.
Embodiment 3：
As shown in figure 3, based on embodiment 2, difference is：On pipeline between primary pump 111 and two stage pump 112
Be provided with four-way connector, the two of which port of the four-way connector respectively with the primary pump 111 and the two stage pump
112 connections, the 3rd port of the four-way connector connect with the 3rd magnetic valve 114, and the of the four-way connector
Four ports connect with one end of the 4th magnetic valve 116, and the other end of the 4th magnetic valve 116 and the air return end B of conduit connect
Logical, the primary pump 111 is connected by the 4th magnetic valve 116 with the air return end B of conduit.In the 4th magnetic valve 116
The 5th magnetic valve 117 is provided with pipeline between the air return end B of the conduit, one end connection of the 5th magnetic valve 117 is big
Gas C, the air return end B of other end connecting tube.
When vacuum pump system 110 operates, the 4th magnetic valve 116 is closed, opens the 5th magnetic valve 117, the return-air of conduit
End B is connected by the 5th magnetic valve 117 with air C, and conduit return-air is directly arranged to air C；When vacuum pump system 110 is closed,
Two stage pump 112 shuts down, and opens the 4th magnetic valve 116, closes the 5th magnetic valve 117, and the air return end B of conduit is directly with one
Level pump 111 connects, and primary pump 111 directly takes out the air return end B of conduit, after the completion of conduit use, closes primary pump 111, then
Cryoablation equipment is closed, terminates to use.Primary pump 111 directly takes out the air return end B of conduit, can accelerate the stream of conduit return-air
Amount, the conversion ratio of air inlet and return-air is improved, so as to improve the performance of conduit.
Finally it should be noted that the foregoing is only preferred embodiment of the present utility model, it is not used to limit
The utility model processed, all made within spirit of the present utility model and principle all any modification, equivalent and improvement etc.,
It should be included within the scope of protection of the utility model.
Claims (6)
- A kind of 1. vacuum system, it is characterised in that：The vacuum system (100) includes vacuum pump system (110) and vacuum buffer System (120), the vacuum pump system (110) include primary pump (111), two stage pump (112) and the first electromagnetism being sequentially connected with Valve (113), the vacuum buffer system (120) include vacuum buffer tank (121), the first vacuum transducer (122) and the second electricity Magnet valve (123), one end of first magnetic valve (113) are connected with the two stage pump (112), first magnetic valve (113) The other end connect the vacuum buffer tank (121), first vacuum transducer (122) and the vacuum buffer tank (121) Connection, the vacuum buffer tank (121) are connected by the second solenoid valve (123) with the vacuum end of conduit.
- 2. vacuum system according to claim 1, it is characterised in that：The primary pump (111) and two stage pump (112) it Between open to atmosphere 3rd magnetic valve (114) of the company of setting, the port of export of the two stage pump (112) is provided with the second vacuum transducer (115)。
- 3. vacuum system according to claim 2, it is characterised in that：In the primary pump (111) and the two stage pump (112) be provided with four-way connector on the pipeline between, the two of which port of the four-way connector respectively with the one-level Pump (111) connects with the two stage pump (112), the 3rd port and the 3rd magnetic valve (114) of the four-way connector Connection, the 4th port of the four-way connector connect with one end of the 4th magnetic valve (116), the 4th magnetic valve (116) the other end connects with the air return end of conduit, and the primary pump (111) passes through the 4th magnetic valve (116) and conduit Air return end connection.
- 4. vacuum system according to claim 3, it is characterised in that：In the 4th magnetic valve (116) and the conduit Air return end between pipeline on be provided with the 5th magnetic valve (117), one end connection air of the 5th magnetic valve (117), The other end connects the air return end of the conduit.
- 5. vacuum system according to claim 1, it is characterised in that：The primary pump (111) is for the two stage pump (112) vavuum pump of low vacuum is provided, including：Membrane pump, vortex pump, lobe pump.
- 6. vacuum system according to claim 1, it is characterised in that：The two stage pump (112) is for the vacuum system (100) vavuum pump of high vacuum or ultrahigh vacuum is provided, including：Molecular pump, cryosorption pump, sputter ion pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721069938.4U CN207145169U (en) | 2017-08-25 | 2017-08-25 | A kind of vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721069938.4U CN207145169U (en) | 2017-08-25 | 2017-08-25 | A kind of vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207145169U true CN207145169U (en) | 2018-03-27 |
Family
ID=61669935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721069938.4U Withdrawn - After Issue CN207145169U (en) | 2017-08-25 | 2017-08-25 | A kind of vacuum system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207145169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387364A (en) * | 2017-08-25 | 2017-11-24 | 康沣生物科技(上海)有限公司 | A kind of vacuum system |
-
2017
- 2017-08-25 CN CN201721069938.4U patent/CN207145169U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387364A (en) * | 2017-08-25 | 2017-11-24 | 康沣生物科技(上海)有限公司 | A kind of vacuum system |
| CN107387364B (en) * | 2017-08-25 | 2020-09-08 | 康沣生物科技(上海)有限公司 | Vacuum system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180327 Effective date of abandoning: 20200908 |