CN105649993A - Double-clip type vacuum jacket flange plate - Google Patents
Double-clip type vacuum jacket flange plate Download PDFInfo
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- CN105649993A CN105649993A CN201510339872.5A CN201510339872A CN105649993A CN 105649993 A CN105649993 A CN 105649993A CN 201510339872 A CN201510339872 A CN 201510339872A CN 105649993 A CN105649993 A CN 105649993A
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- ring flange
- main body
- roots
- vacuum pump
- pipe
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Abstract
The invention relates to a double-clip type vacuum jacket flange plate which comprises a flange plate main body and is characterized in that the flange plate main body is internally provided with a heat exchange chamber, a spiral coil is arranged in the heat exchange chamber, a jacket layer is arranged at the side wall of the flange plate main body, and the jacket layer is connected with the spiral coil to form a medium channel; and a temperature detection channel is arranged at one side of the flange plate main body. The double-clip type jacket flange can be connected with a flange at the exhaust side of a roots vacuum pump and can be directly fixed on the flange at the exhaust side of the roots vacuum pump by a connecting bolt, a finned spiral coil can be inversely inserted into a roots inner chamber at the exhaust side of the roots vacuum pump (without affecting the roots operating track), cooling water can directly cool high temperature gas at the exhaust side during overpressure difference operation of the roots pump by the jacket layer and spiral finned tubes so as to lower the temperature of gas in a pump chamber at the exhaust side of the roots vacuum pump, so that the roots vacuum pump can reliably and safely operate at higher pressure difference.
Description
Technical field
The present invention relates to the technical field of a kind of wafer type vacuum jacket ring flange, be specifically related to a kind of can the wafer type vacuum jacket ring flange of adjustments of gas passage temperature.
Background technology
There are two weak points being difficult to overcome in current Roots vaccum pump when running, owing to Roots vaccum pump can not be used alone as vacuum pump, need to be equipped with forevacuum pump, forvacuum pump intake needs the tolerance discharging Roots vacuum pump exhaust inlet in time, otherwise gas can be caused in the accumulation of Roots vacuum pump exhaust inlet, form the venting port of lobe pump and the pressure reduction of suction port. When pressure reduction is excessive, the rotor of Roots vaccum pump is when exhaust side carries out gas compression, it is necessary to bigger acting, and according to gas compression thermal equilibrium, gas compression acting is more big, and the heat of generation is also more big. If these heats can not removed in time or dispel the heat away, then the rotor that heat is delivered in the Roots vaccum pump pump housing, the pump housing, axle, on end cap, and these metal partss are heated and can expand. When the temperature in the Roots vaccum pump pump housing is more and more higher, the expansion of inner metal parts can exceed safe limit value, namely exceed rotor and the pump housing or and Roots vaccum pump end cap between gap and there is metal bump, until rotor is stuck, cause Roots vaccum pump to damage.
Although the gap between Roots vacuum pump rotor and the pump housing or end cap can be strengthened, but bigger gap can make Roots vaccum pump enter bigger backflowing occur, thus cause inlet vacuum degree to have very big loss, and cause the decline of actual rate of air sucked in required further, i.e. the degradation in efficiency of Roots vaccum pump. In order to ensure that Roots vacuum pump intake reaches specified vacuum degree and pumping efficiency, it is necessary to the rotor of Roots vaccum pump and the pump housing or and end cap between gap determine. But this gap but is not easy to meet the excessive high compression heat caused of pressure reduction and can not be removed in time and cause rotor and the pump housing, and end cap is stuck. Simultaneously concerning the environment for use of some harshnesses, pump housing surface temperature is too high also can cause dangerous hidden danger, so removing Roots vaccum pump gas compression heat in time is improve the core key of Roots vacuum pump performance and use safety.
If the heat of compression can not be removed in time simultaneously, this heat accumulation causes cavity temperature in the Roots vaccum pump pump housing to raise, end cap can be passed to, and it is delivered to the part of end caps further, these parts are made to comprise bearing, place is at high temperature run by sealing member and lubricating oil, once temperature is too high, will seriously have impact on the work-ing life of this part.If the heat of compression of Roots vaccum pump can be removed rapidly, it is possible not only under the requirement ensureing vacuum tightness, improve the operation pressure reduction of Roots vaccum pump, and when running under equal operating mode, remove the heat of compression fast, it is ensured that heat does not accumulate in this pump chamber, reduce the temperature of venting port, also namely reduce the exhaust volume (temperature is more high, becomes big with equipressure lower volume) of venting port, it is more conducive to the free air delivery that forepump receptivity meets vacuum lobe pump.
Summary of the invention
It is an object of the invention to provide a kind of wafer type vacuum jacket ring flange, peace wafer type vacuum jacket ring flange is contained in gas passage equipment, it is possible to reduce or improve the temperature of gas.
In order to realize above-mentioned purpose, the technical scheme of the present invention is as follows: a kind of wafer type vacuum jacket ring flange, comprise ring flange main body, it is characterized in that being provided with a heat exchanging chamber in described ring flange main body, being provided with spiral pipe in heat exchanging chamber, ring flange main body wall is provided with a chuck layer, and described chuck layer is connected with spiral pipe, forming medium channel, described ring flange body side is also provided with a temperature detection channels.
According to a preferred embodiment of the invention, described ring flange main body is arranged on Roots vacuum pump exhaust inlet, spiral pipe stretches into Roots vacuum pump exhaust inlet, ring flange main body is connected with Roots vacuum pump exhaust inlet by joint bolt, is provided with flange seal circle between ring flange main body and Roots vacuum pump exhaust inlet.
Described spiral pipe comprises internal screw coil pipe and outer spiral pipe, the coil diameter of outer spiral pipe is greater than internal screw coil pipe, internal screw coil pipe is set in outer spiral pipe, arrange chuck layer in ring flange main body wall side to be connected with inner spiral fin coil pipe, arranging communicating passage in another side of ring flange main body wall to be connected with outer spiral fin coil pipe, described communicating passage all arranges tube stub and is connected with the external world with chuck layer.
Described internal and external screw coil pipe adopts seamless tube or corrugated tube or uses finned copper tube.
Wafer type jacket flange dish adopts the mode of docking to be connected with other systems, it may also be useful to flange seal circle seals so that namely device may be used for vacuum environment, it is also possible to for normal pressure or low pressure environment. Joint bolt is passed through fastening, it may also be useful to gland ring defines closed chuck layer so that the thermal source passed through in chuck closed cavities or coolant media can not contact with overcurrent gas between wafer type jacket flange dish and gland.
The present invention is mainly used in reducing in Roots vaccum pump exhaust pump chamber, side a kind of refrigerating unit of the heat of compression, it is also possible to is arranged on any gas passage equipment, carries out heat exchange, or reduces gas temperature or improve gas temperature. the wafer type vacuum jacket ring flange of the present invention can be vented side flange with Roots vaccum pump and be connected, the exhaust side flange of Roots vaccum pump can be directly fixed on by joint bolt, fin spiral pipe can pour into Roots vaccum pump and be vented in Roots's inner chamber of side (but not interfering Roots's running orbit), water coolant can directly cool, by chuck layer and helical fin pipe, the high-temperature gas that lobe pump is vented side when overpressure difference runs, reduce the gas temperature in Roots vaccum pump exhaust pump chamber, side, can so that reliable and safety when Roots vaccum pump runs under more High Pressure Difference. the present invention adopt wafer type vacuum jacket ring flange not only solve Roots vaccum pump long-term existence cannot under higher pressure reduction long-play, under the requirement ensureing vacuum tightness, improve its stability and bear higher pressure reduction, and reduce exhaust port temperatures under equal operating mode, reduce power consumption, the work-ing life of prolongation part.Meanwhile, the present invention also can be arranged on any gas passage equipment, leads to and establishes coolant media or connect thermal source, the gas in gas passage is carried out heat exchange in spiral pipe, or reduce gas temperature or improve gas temperature.
Accompanying drawing explanation
Fig. 1 is a diagrammatic cross-section of the present invention.
Fig. 2 is another diagrammatic cross-section of the present invention.
Fig. 3 is the scheme of installation of the present invention.
Figure comprises:
1-wafer type jacket flange dish,
2-gland,
3-spiral pipe,
4-tube stub,
5-flange seal circle,
6-gland ring,
7-joint bolt,
8-chuck layer,
9-temperature detection channels,
10-communicating passage,
11-Roots vaccum pump discharge chamber,
The 12-Roots vaccum pump pump housing.
Embodiment
Following examples can make the technician of this area more clearly understand how practice. Although it is to be understood that describe the present invention in conjunction with its preferred specific embodiments, but these embodiments are intended setting forth, instead of limit the scope of the invention.
A kind of wafer type vacuum jacket ring flange 1, comprise ring flange main body, it is characterized in that being provided with a heat exchanging chamber in described ring flange main body, spiral pipe 3 it is provided with in heat exchanging chamber, the inwall contacted with overcurrent gas inside ring flange main body is provided with chuck layer 8, an airtight chuck chamber is formed after being fixed by gland 2 and joint bolt 7, it is connected with tube stub 4 and spiral pipe 3, define the medium channel that is refused gaseous media contact, can lead to, into thermal source or refrigerant, overcurrent gas be carried out heat exchange, described ring flange body side is also provided with a temperature detection channels 9, can direct measurement gas temperature by this temperature detection channels, this passage both can be the straight channel without screw thread, make to use at its peripheral equipment, it can also be screw thread, independent connection thermometer or temperature transmitter etc.
According to a preferred embodiment of the invention, described wafer type vacuum jacket ring flange 1 is arranged on Roots vacuum pump exhaust inlet, spiral pipe 3 stretches in Roots vacuum pump exhaust inlet, wafer type vacuum jacket ring flange 1 is connected with Roots vacuum pump exhaust inlet by joint bolt 7, is provided with flange seal circle 5 between wafer type vacuum jacket ring flange 1 and Roots vacuum pump exhaust inlet.
Described spiral pipe 3 comprises internal screw coil pipe and outer spiral pipe, the coil diameter of outer spiral pipe is greater than internal screw coil pipe, internal screw coil pipe is set in outer spiral pipe, internal screw coil pipe and outer spiral pipe utilize the integrated structure of same pipeline coiling formation, do not connected by welding or alternate manner, arrange chuck layer in ring flange main body wall side to be connected with inner spiral fin coil pipe, arrange communicating passage 10 in another side of ring flange main body wall to be connected with outer spiral fin coil pipe, described communicating passage is all connected with medium pipeline by tube stub 4 with chuck layer.
Described spiral pipe can adopt internal and external screw formula fin coil pipe, the copper tube coil of common spiral can also be adopted, also or common stainless steel pipes or stainless steel corrugated bellows, or other forms of heat exchange pipeline, as long as the maximum external diameter of air-flow passage in the blue dish of shape non-interferometric method.
In the specific implementation, two threaded holes are had in wafer type flange side, it is cooling fluid admission port and cooling fluid relief outlet respectively, coil pipe in flange adopts internal and external screw form, the length of cooling fluid coil pipe is made to reach maximumization, not only increase coil surface area (i.e. heat interchanging area), the resistance of overcurrent gas is reduced to minimum simultaneously.
First utilize wafer type jacket flange dish 1 and flange seal circle 5 can directly directly be connected with Roots vacuum pump exhaust inlet with joint bolt 7 and fixing, install, dismounting and facilitate and ensure that stopping property. Make chuck layer 8 and spiral pipe 3 can more go deep into the exhaust side inner chamber of Roots vaccum pump, but can not collide with the operating range of Roots's wind leaf. The spiral pipe 3 of inside and outside two layers makes to realize maximized surface-area under less cavity volume, namely maximum heat interchanging area, and the drag losses that the geometry shape of helical fin coil pipe 3 makes overcurrent gas cause simultaneously reaches minimum.
Internal and external screw coil pipe can adopt seamless tube, corrugated tube can also be used, but it is still further preferred that use finned copper tube, because adopting this kind of pipe, it is possible to have the performance of bigger bending winding and enough fin heat interchanging areas so that the heat interchanging area of water cooler increases several times, especially under vacuum conditions, air-flow can also be made by producing much little vortex during fin, increase the probability of collision, thus increase the effect of heat exchange. Spiral pipe 3 adopts copper pipe or stainless steel pipes, it is possible to avoid the chlorion in water to corrosive pipeline, it is also possible to resist the sour gas of some corrosion.
Secondary processing is carried out and become after the cast casting of the grey iron HT250 that wafer type jacket flange dish 1 adopts, owing to gray iron material has extremely weak heat distortion amount, even if the distortion amount of the very high generation of gas temperature is minimum really, ensure that this part with Roots vaccum pump in join dress more closely. It is utilize gland 2 to carry out airtight to chuck layer 8 simultaneously, therefore can carry out doing antirust, rotproofing before completing chuck layer 8 and be airtight, such as, plate PTFE, avoid corrosion and the scale formation of thermal source or refrigerant appearance under long-time use.
Owing to having occurred that chuck layer 8 makes this device have double cooling performance for Roots vaccum pump at wafer type jacket flange dish 1, better than single helical fin coil pipe cooling performance, significantly increase heat interchanging area; The mode of connection of the simple tube joint 4 adopted makes the connection of helical fin coil pipe and wafer type jacket flange dish and fixes also more convenient.
Temperature detection channels 9 be solve original cannot the temperature of direct detection Roots vaccum pump discharge chamber, laying temperature meter or temperature transmitter can realize coordinated signals by this passage.
Present invention uses wafer type spiral pipe water cooler, this wafer type spiral pipe water cooler has novel inside and outside integrity spiral pipe pipeline, and its structure is different from prior art and is: existing coiled pipe cooler all can not directly be used in the function of inner chamber for cooled compressed heat of Roots vaccum pump exhaust side. General mode of connection is all two ends Flange joint, and chuck coil pipe type, is equal to tube and shell heat exchanger, most for laboratory etc. First this new-type wafer type spiral pipe water cooler is used in Roots vaccum pump exhaust side inner chamber, removes the heat of compression fast, reduces thermal stresses and the power of Roots vaccum pump. This new-type wafer type spiral pipe water cooler can be used in any one blower fan venting port or pipeline simultaneously, reduces temperature out.
Such as, for new-type wafer type spiral pipe water cooler except water can be used as cooling fluid, it is also possible to using other cooling fluid, propylene glycol, chilled brine and cold gasoline etc. can meet requirement.
The above is only the preferred embodiment of the present invention; it is noted that for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a wafer type vacuum jacket ring flange, comprise ring flange main body, it is characterized in that being provided with a heat exchanging chamber in described ring flange main body, spiral pipe it is provided with in heat exchanging chamber, ring flange main body wall is provided with a chuck layer, described chuck layer is connected with spiral pipe, forms medium channel, and described ring flange body side is also provided with a temperature detection channels.
2. a kind of wafer type vacuum jacket ring flange according to claim 1, it is characterized in that described ring flange main body is arranged on Roots vacuum pump exhaust inlet, spiral pipe stretches into Roots vacuum pump exhaust inlet, ring flange main body is connected with Roots vacuum pump exhaust inlet by joint bolt, is provided with flange seal circle between ring flange main body and Roots vacuum pump exhaust inlet.
3. a kind of wafer type vacuum jacket ring flange according to claim 2, it is characterized in that described spiral pipe comprises internal screw coil pipe and outer spiral pipe, the coil diameter of outer spiral pipe is greater than internal screw coil pipe, internal screw coil pipe is set in outer spiral pipe, arrange chuck layer in ring flange main body wall side to be connected with inner spiral fin coil pipe, arranging communicating passage in another side of ring flange main body wall to be connected with outer spiral fin coil pipe, described communicating passage all arranges tube stub and is connected with the external world with chuck layer.
4. a kind of wafer type vacuum jacket ring flange according to claim 2, it is characterised in that described internal and external screw coil pipe adopts seamless tube or corrugated tube or uses finned copper tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510339872.5A CN105649993A (en) | 2015-06-18 | 2015-06-18 | Double-clip type vacuum jacket flange plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510339872.5A CN105649993A (en) | 2015-06-18 | 2015-06-18 | Double-clip type vacuum jacket flange plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105649993A true CN105649993A (en) | 2016-06-08 |
Family
ID=56481577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510339872.5A Pending CN105649993A (en) | 2015-06-18 | 2015-06-18 | Double-clip type vacuum jacket flange plate |
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| Country | Link |
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| CN (1) | CN105649993A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483586A (en) * | 2022-02-08 | 2022-05-13 | 迈科微真空技术(苏州)有限公司 | Cooling device and vacuum pump comprising same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2453452A1 (en) * | 1974-11-12 | 1976-05-13 | Leybold Heraeus Gmbh & Co Kg | Rotor pump for vacuum generation - uses part of cooled outlet medium to cool the rotor |
| CN203335406U (en) * | 2013-01-19 | 2013-12-11 | 上海零澜机械科技有限公司 | Convection all-cooling end cover structure for novel Roots pump |
| CN103511280A (en) * | 2013-06-08 | 2014-01-15 | 苏州伊莱茨流体装备有限公司 | Novel vacuum opposite-clamping coiled pipe cooler |
| CN203822629U (en) * | 2014-02-28 | 2014-09-10 | 东莞市雅之雷德机电科技有限公司 | Roots vacuum pump with cooling device |
| CN104632630A (en) * | 2013-11-13 | 2015-05-20 | 中国科学院沈阳科学仪器股份有限公司 | System and method for controlling thermal expansion of Roots dry pump |
| CN204941966U (en) * | 2015-06-18 | 2016-01-06 | 上海伊莱茨真空技术有限公司 | A kind of wafer type vacuum jacket flange plate |
-
2015
- 2015-06-18 CN CN201510339872.5A patent/CN105649993A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2453452A1 (en) * | 1974-11-12 | 1976-05-13 | Leybold Heraeus Gmbh & Co Kg | Rotor pump for vacuum generation - uses part of cooled outlet medium to cool the rotor |
| CN203335406U (en) * | 2013-01-19 | 2013-12-11 | 上海零澜机械科技有限公司 | Convection all-cooling end cover structure for novel Roots pump |
| CN103511280A (en) * | 2013-06-08 | 2014-01-15 | 苏州伊莱茨流体装备有限公司 | Novel vacuum opposite-clamping coiled pipe cooler |
| CN104632630A (en) * | 2013-11-13 | 2015-05-20 | 中国科学院沈阳科学仪器股份有限公司 | System and method for controlling thermal expansion of Roots dry pump |
| CN203822629U (en) * | 2014-02-28 | 2014-09-10 | 东莞市雅之雷德机电科技有限公司 | Roots vacuum pump with cooling device |
| CN204941966U (en) * | 2015-06-18 | 2016-01-06 | 上海伊莱茨真空技术有限公司 | A kind of wafer type vacuum jacket flange plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483586A (en) * | 2022-02-08 | 2022-05-13 | 迈科微真空技术(苏州)有限公司 | Cooling device and vacuum pump comprising same |
| CN114483586B (en) * | 2022-02-08 | 2024-09-13 | 迈科微真空技术(苏州)有限公司 | Cooling device and vacuum pump comprising same |
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Application publication date: 20160608 |
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