CN204800997U - Cooler for vacuum system with negative pressure self sealss end cover - Google Patents
Cooler for vacuum system with negative pressure self sealss end cover Download PDFInfo
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- CN204800997U CN204800997U CN201520417979.2U CN201520417979U CN204800997U CN 204800997 U CN204800997 U CN 204800997U CN 201520417979 U CN201520417979 U CN 201520417979U CN 204800997 U CN204800997 U CN 204800997U
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- circular body
- cooler
- end cap
- circular
- vacuum system
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Abstract
The utility model provides a cooler for vacuum system with negative pressure self sealss end cover, including circular body, it is sealed with round end cover that O type sealing washer is passed through to the upper end of this circular body, and the contained angle department of this round end cover and circular body inner wall is provided with the separation ware that is arranged in separation gas gaseous state molecule, this separation ware and circular body and round end cover clearance are sealed, the lower extreme of circular body is connected with album dirty a fill, and the dirty bottom of fighting of this collection is provided with the fluid -discharge tube, circular the internal flow distribution plate that still is provided with. Adopt the utility model discloses the cooler of end cover draw bail is dismantled, the round end cover at installation cooler top is quick, laborsaving, efficiency is fast, and non -maintaining.
Description
Technical field
The utility model relates to vacuum system cooler technical field, be specifically related to a kind of draw bail for PET film production line auxiliary extruder vacuum system cooler top circular end cap and circular body, can high temperature-proof, the cooling of dust-proof, anti-gaseous molecular time solidify attachment pickup, quick detachable, easy installation, non-maintaining.
Background technology
At present, the auxiliary extruder vacuum system of known PET film production line is made up of vacuum (-tight) housing, cooler, filter, roots blower, oil water separator, screw pump, tube connector and magnetic valve.In the operating temperature of auxiliary extruder system 270 DEG C, evaporate in the melt and dissolved material of terephthalate fat, with the mist that Small molecular and steam are Main Ingredients and Appearance, initiatively connecting tube is incubated through electrical heating to 250 DEG C by the vacuum (-tight) housing of vacuum system, enter cooler to cool, cooled mixed gas enters filter through the tube connector of the active of electrical heating to 180 DEG C insulation and magnetic valve again, filter flow channel cross-section is long-pending to be strengthened suddenly, reduced velocity flow, filter is without Insulation, mixed gas cools naturally, the nearly step of temperature declines, Small molecular in mist is condensed into tiny free state dust, and elimination in the filter, remaining Main Ingredients and Appearance is that the mist of steam is connected by connecting tube and magnetic valve and roots blower, there is provided one-level to vacuumize power by roots blower to aspirate, gas is through water-cooling type oil separator oil-water separation, discharge after screw pump provides secondary to vacuumize power isolated at suction profit again.The pressure of vacuum system is absolute pressure 5mbar, is approximately 0.005 atmospheric pressure, i.e.-0.995 atmospheric vacuum, removes impurity in the melt and dissolved material of auxiliary extruder with this, reliably produces guarantee for production line downstream process provides.
Wherein the project organization of cooler and operation principle are: cooler is with the cooling of inside center coldplate, and shunt gas, change the flow direction of gas, circular outer wall is the active insulation that electricity consumption is heated to 180 DEG C.Top is the circular end cap seal of flange connect, end cap has cooling water inlet/outlet pipe connect, and is connected with the inside center coldplate of cooler, inseparable.Bottom is the liquid collecting bucket of flange connect, and have discharging tube bottom liquid collecting bucket and connection valve, the gas flow cross section of cooler is narrow, suitable with the gas flow cross section of turnover cooler connecting tube, forms very fast gas flow rate with this.Mist is when entering cooler cooling, and water vapor condensation Cheng Shui falls into liquid collecting bucket, and Small molecular is condensed into tiny free state dust, follows the very fast gas of flow velocity, enters filter through the connecting tube of the active insulation of electrical heating to 220 DEG C and magnetic valve.
But, under vacuum system 5mbar absolute pressure, negative pressure makes the large molecule gasification point in the melt and dissolved material of terephthalate fat of in auxiliary extruder system 270 DEG C reduce and evaporate, and this makes mist composition be not only Small molecular and steam, also has a small amount of large molecule.When entering cooler containing the macromolecular mist of gasification, the large molecule setting temperature critical point of gaseous state is high, becomes solid in the cooler rapid condensation through 180 DEG C.Because gas flow rate is fast, again because circular outer wall is electrical heating initiatively insulation, have a narrow range of temperature with mist, therefore, molecule is frozen into solid at the circular inner wall of cooler and the contact of center coldplate, condensation attachment cooler inwall from level to level, blocking cooler, the dirt of attachment is solidified in contact from level to level, and close structure, quality are solid.Blocked cooler changes the flow regime of mixed gas and cooler is lost the job function, until block cooler gas runner, vacuum system can not be worked, affect production run.
Reliable in order to make production line downstream process produce, often will stop production line clears up by the cooler of contamination blocking inner by machine maintenance, the circular end cap that often dismounting cooler top flange connects is needed to clear up, the circular end cap of dismounting flange connect need dismantle eight bolts, installed by the circular end cap that top flange connects again after having cleared up, the circular end cap that mounting flange connects needs again fastening eight bolts.Therefore, dismantle, install the circular end cap effort of cooler top flange connection, time-consuming, efficiency is low.
Utility model content
In order to overcome cooler dismounting, install the circular end cap effort of cooler top flange connection, time-consuming, inefficient deficiency, the utility model provides a kind of vacuum system cooler with negative pressure self sealss end cap, this cooler top circular end cap connection dismounting, install, easy, quick, laborsaving, efficiency is fast, non-maintaining.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of vacuum system cooler with negative pressure self sealss end cap, comprise circular body, the upper end of this circular body is by O RunddichtringO and circular end cap seal, the angle of this circular end cap and circular body inwall is provided with the obstructing instrument for intercepting gaseous molecular in gas, this obstructing instrument and described circular body and circular end cap clearance seal; The lower end of described circular body is connected with dirt collecting bucket, and the bottom of this dirt collecting bucket is provided with discharging tube; Also flow distribution plate is provided with in described circular body.
Further, described obstructing instrument is ring-shaped component, this ring-shaped component is provided with the annular groove of opening upwards, and described obstructing instrument is by being arranged on the back-up block location on circular body inwall.
Described annular groove can to stop in cooler high-temperature gas mixture body to the direct heat radiation of O RunddichtringO, and heat radiation need through obstructing instrument inner ring, then through annular groove, again through obstructing instrument outer shroud, could heat radiation O RunddichtringO, reduce heat trnasfer, prevent that temperature is too high to be damaged to O RunddichtringO.Clearance seal between obstructing instrument and cooler top circular end cap, therefore corresponding gas exchange is had to high-temperature gas mixture body in cooler, the annular groove of opposing seal adds the space in clearance seal, can reduce the flowing velocity of gas exchanges, reduces gas motion kinetic energy.Obstructing instrument is close to the internal layer cooling interface of cooler water leg, and the high-temperature gas mixture body in space in cooling obstructing instrument annular recess, because gas motion energy in obstructing instrument annular groove is lowered, therefore flowing velocity is slow, adds the cooling effect time.Because gas motion energy in obstructing instrument annular groove is lowered, flowing velocity is slow, therefore the gas exchanges at space gases and cooler top circular end cap O RunddichtringO place in the annular groove blocking obstructing instrument, reduce thermal convection current to O RunddichtringO, prevent that temperature is too high to be damaged to O RunddichtringO.In obstructing instrument annular groove, the high-temperature gas mixture body of the gaseous molecular of the terephthalate fat in space is by when this cools, form solid-state dust and dirt, can help to remove terephthalate fat molecule contained in gas, make the cleaning gas in space in obstructing instrument annular groove, therefore the direct gas exchanges at high-temperature gas mixture body and O RunddichtringO place in cooler can be intercepted, reduce O RunddichtringO and solidified attachment by molecule contacts, prevent dust and dirt pollution from damaging to O RunddichtringO.
Further, step clearance hermetically-sealed construction is arranged in sealing place of described circular body and circular end cap.
Between circular end cap and circular body, a step is set, increase gas flow through passage length, stop high-temperature gas mixture body to the thermal convection current of O RunddichtringO, gas exchanges between simultaneously stoping in space, O RunddichtringO place and cooler, O RunddichtringO is stoped to be solidified attachment by gaseous molecular contact, prevent from the too high or dust and dirt of temperature from polluting to damage to O RunddichtringO, step also plays positioning action when installing circular end cap.
Further, described flow distribution plate (400) is fixed by being arranged on locating slot (113) in circular body, and described circular body is positioned at position immediately below this locating slot and is provided with bracing frame (114) for supporting flow distribution plate.
Further, between described flow distribution plate (400) top and described circular end cap (200), there is gap one, have gap two between described flow distribution plate (400) bottom and described dirt collecting bucket (300) top, this gap one and gap two are all for the gas by needing cooling.
From above technical scheme, adopt the cooler of the utility model end cap draw bail, the circular end cap at dismounting, installation cooler top is quick, laborsaving, efficiency fast, and non-maintaining.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model, and shows the axial sectional view of circular end cap and circular body;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the schematic diagram that in Fig. 1, circular body is connected with circular end cap;
Fig. 4 is the axial sectional view of obstructing instrument in the utility model.
In figure: 100, circular body, 101, O RunddichtringO, 110, body internal layer, 111, gas access, 112, gas vent, 120, this volume surrounding, 121, cooling water inlet, 122, coolant outlet, 200, circular end cap, 300, obstructing instrument, 310, annular groove, 320, back-up block, 400, dirt collecting bucket, 410, discharging tube, 500, flow distribution plate, 510, locating slot, 520, bracing frame.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of preferred embodiment of the present utility model is described in detail.
As illustrated in fig. 1 and 2, the utility model cooler is used in the auxiliary extruder vacuum system of PET film production line, the mist that the melt and dissolved material of the terephthalate fat of 270 DEG C produces is cooled, described cooler comprises the circular body 100 for passing into mist, this circular body upper end is sealed by circular end cap 200, there is dirt collecting bucket 400 lower end by Flange joint, the bottom of this dirt collecting bucket is provided with discharging tube 410, flow distribution plate 500 is provided with in described circular body, mist enter cool in circular body time, under the effect of flow distribution plate, water vapor condensation Cheng Shui in mist falls into dirt collecting bucket, and discharge outside cooler by discharging tube, Small molecular in mist is condensed into tiny free state dust, follow the very fast gas of flow velocity, filter is entered through the connecting tube of the active insulation of electrical heating to 220 DEG C and magnetic valve.
The water leg that in the utility model, circular body 100 is made up of body internal layer 110 and this volume surrounding 120 is formed, cooling water is passed in water leg, the mist entered in circular body can be cooled, replace the refrigerating function of former cooler inside center coldplate, increase the film-cooled heat of cooler.
The both sides of described volume surrounding 120 offer cooling water inlet 121 and coolant outlet 122 respectively, the both sides of described body internal layer 110 offer gas access 111 and gas vent 112 respectively, wherein coolant outlet 122 and gas access 111 are arranged on the upside of circular body, described cooling water inlet 121 and gas vent 112 are arranged on the downside of circular body, in order to reach best cooling effect, be arranged on directly over gas access 111 by described coolant outlet 122, described cooling water inlet 121 is arranged on immediately below gas vent 112.
Described flow distribution plate 500 is by being arranged on locating slot 510 on body internal layer 110 and bracing frame 520 is fixed, wherein locating slot is evenly equipped with multiple up and down, bracing frame is positioned at bottom immediately below locating slot, vertically being placed by flow distribution plate during installation snaps in locating slot, flow distribution plate be just in time against on bracing frame bottom.Between described flow distribution plate 500 top and described circular end cap 200, there is gap one, between described flow distribution plate 500 bottom and described dirt collecting bucket 400 top, there is gap two, the horizontal level of described gas access 111 and gas vent 112 is between described gap one and gap two, described gap one and gap two are all for passing through mist, therefore in cooler, define two refrigerating gas runners, two refrigerating gas runners are substantially identical cooling length, the refrigerating gas runner wherein comprising gap two is identical with former refrigerating gas runner, from top to down through flow distribution plate 400, again upwards to gas vent 112, another refrigerating gas runner comprising gap 1 is from below to up through flow distribution plate, again down to gas vent 112.Two refrigerating gas runners reduce gas flow rate, two refrigerating gas runners add film-cooled heat, same volumes of gas within the coolant flat time, improve cooling effect, two refrigerating gas runners have also delayed blocking speed, the center of cooler also adopts flow distribution plate, when keeping original film-cooled heat, shortens gas flow length.Simultaneously during machine maintenance clean coolers, only can pull down the circular end cap of flange connect, directly clear up from top to the suitable instrument in cooler inside, the top of circular end cap is provided with handle, handled easily.Because the upper space of cooler is high, wide ranges, when pulling down the top of circular end cap from cooler and clearing up its inside, have and enough clear up space, therefore dedicated cleaning tool can be used, as the simple tough and tensile instruments such as microscler thick round steel, microscler thick square steel are directly cleared up, and directly from the clean level of cooler top visualization cleaning, when dust and dirt expired by the dirt collecting bucket collection of bottom, then can pull down collection.
As shown in Figure 3, in order to reach quick-detachment, install the object of cooler top circular end cap, the upper end of described circular body 100 is sealed by O RunddichtringO 101 and circular end cap 200, replaces Flange joint of the prior art.The sealing of cooler top circular end cap adopts negative pressure self-sealing mechanism, the O RunddichtringO of defeating between circular body that circular end cap deadweight and negative pressure produce, and obtains the effect sealed.
But because cooler will cool the mist of 270 DEG C, O RunddichtringO operating temperature can not be too high, and fluororubber O-type ring operating temperature is no more than 240 DEG C, nitrile rubber O type circle operating temperature is no more than 120 DEG C, therefore O RunddichtringO Yao You thermal resistance mechanism; Mist gaseous molecular when cooling can solidify, contact attachment O RunddichtringO, the adhesive force solidifying attachment due to contact is large, close structure, during dismounting top circular end cap, O RunddichtringO can be caused to damage, and therefore O RunddichtringO has the obstruct mechanism stoping the contact of the gaseous molecular in mist to solidify attachment O type circle again.
As shown in Figures 3 and 4, the utility model employing arranges the object that obstructing instrument 300 intercepts to reach thermal resistance in circular end cap 200 and the angle of body internal layer 110, described obstructing instrument is ring-shaped component, this ring-shaped component is provided with the annular groove 310 of opening upwards, described obstructing instrument is by being arranged on the back-up block location 320 on circular body inwall, this obstructing instrument and body internal layer and circular end cap clearance seal, stop high-temperature gas mixture body to the thermal convection current of O RunddichtringO, gas exchanges between simultaneously stoping in space, O RunddichtringO place and cooler, O RunddichtringO is stoped to be solidified attachment by gaseous molecular contact, prevent from the too high or dust and dirt of temperature from polluting to O RunddichtringO to damage.
As shown in Figure 3, described circular body 100 is arranged to step clearance hermetically-sealed construction with sealing place of circular end cap 200, between circular end cap and circular body, a step is set, gas flow can be increased through passage length, have the effect identical with obstructing instrument, step also plays positioning action when installing circular end cap simultaneously.
Described O RunddichtringO 101 is arranged on the annular groove on circular body water leg top, utilizes water-cooling pattern, the gas in coolant seal Mechanism Clearance, reduces gas temperature, reduces high-temperature gas to the heat trnasfer of O RunddichtringO.
Above-mentioned thermal resistance, obstruct measure make the operating temperature of O RunddichtringO 101 be less than 100 DEG C, keep O RunddichtringO working environment totally to clean.Like this when dismantling cooler top circular end cap, open the pressure-relief valve of vacuum system, after removal negative pressure, the handle covered by round nose is directly unloaded.When mounted, the handle covered by round nose is directly installed, and closes the pressure-relief valve of vacuum system.
The above embodiment is only be described preferred embodiment of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that claims of the present utility model determine.
Claims (5)
1. one kind has the vacuum system cooler of negative pressure self sealss end cap, it is characterized in that, comprise circular body (100), the upper end of this circular body is sealed by O RunddichtringO (101) and circular end cap (200), the angle of this circular end cap and circular body inwall is provided with the obstructing instrument (300) for intercepting gaseous molecular in gas, this obstructing instrument and described circular body and circular end cap clearance seal; The lower end of described circular body (100) is connected with dirt collecting bucket (400), and the bottom of this dirt collecting bucket is provided with discharging tube (410), is also provided with flow distribution plate (500) in described circular body (100).
2. vacuum system cooler according to claim 1, it is characterized in that, described obstructing instrument (300) is ring-shaped component, this ring-shaped component is provided with the annular groove (310) of opening upwards, described obstructing instrument is by being arranged on back-up block (320) location on circular body inwall.
3. vacuum system cooler according to claim 1, is characterized in that, described circular body (100) is arranged to step clearance hermetically-sealed construction with sealing place of circular end cap (200).
4. vacuum system cooler according to claim 1, it is characterized in that, described flow distribution plate (500) is fixed by being arranged on locating slot (510) in circular body, and described circular body is positioned at position immediately below this locating slot and is provided with bracing frame (520) for supporting flow distribution plate.
5. vacuum system cooler according to claim 1, it is characterized in that, between described flow distribution plate (500) top and described circular end cap (200), there is gap one, have gap two between described flow distribution plate (500) bottom and described dirt collecting bucket (400) top, this gap one and gap two are all for the gas by needing cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520417979.2U CN204800997U (en) | 2015-06-17 | 2015-06-17 | Cooler for vacuum system with negative pressure self sealss end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520417979.2U CN204800997U (en) | 2015-06-17 | 2015-06-17 | Cooler for vacuum system with negative pressure self sealss end cover |
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| Publication Number | Publication Date |
|---|---|
| CN204800997U true CN204800997U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520417979.2U Active CN204800997U (en) | 2015-06-17 | 2015-06-17 | Cooler for vacuum system with negative pressure self sealss end cover |
Country Status (1)
| Country | Link |
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| CN (1) | CN204800997U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106217805A (en) * | 2016-08-11 | 2016-12-14 | 安徽国风塑业股份有限公司 | Negative pressure cleaning system for film line auxiliary extruder vacuum system cooler |
| CN115008708A (en) * | 2022-07-01 | 2022-09-06 | 曾益洪 | Cooling water internal circulation type cooling mechanism and cooling method for injection mold |
-
2015
- 2015-06-17 CN CN201520417979.2U patent/CN204800997U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106217805A (en) * | 2016-08-11 | 2016-12-14 | 安徽国风塑业股份有限公司 | Negative pressure cleaning system for film line auxiliary extruder vacuum system cooler |
| CN106217805B (en) * | 2016-08-11 | 2018-08-03 | 安徽国风塑业股份有限公司 | Negative pressure cleaning system for the auxiliary extruder vacuum system cooler of film line |
| CN115008708A (en) * | 2022-07-01 | 2022-09-06 | 曾益洪 | Cooling water internal circulation type cooling mechanism and cooling method for injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 230088 No.1000, Mingchuan Road, high tech Zone, Hefei City, Anhui Province Patentee after: Anhui Guofeng New Material Co.,Ltd. Address before: Tianzhi Road, national high tech Industrial Development Zone, Hefei City, Anhui Province, No. 36 230088 Patentee before: ANHUI GUOFENG PLASTIC CO.,LTD. |
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| CP03 | Change of name, title or address |