CN202952416U - Conduction oil heat supplying system of open mill - Google Patents
Conduction oil heat supplying system of open mill Download PDFInfo
- Publication number
- CN202952416U CN202952416U CN 201220597219 CN201220597219U CN202952416U CN 202952416 U CN202952416 U CN 202952416U CN 201220597219 CN201220597219 CN 201220597219 CN 201220597219 U CN201220597219 U CN 201220597219U CN 202952416 U CN202952416 U CN 202952416U
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- Prior art keywords
- oil
- electric heater
- conduction oil
- mill
- solenoid valve
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Abstract
The utility model discloses a conduction oil heat supplying system of an open mill. The conduction oil heat supplying system of the open mill system comprises an oil storage tank, an oil circulating pump and an electric heater, wherein an inlet end of the oil circulating pump is communicated with the oil storage tank, an outlet end of the oil circulating pump is communicated with the electric heater, the electric heater is connected with a front roller and a rear roller through pipelines, the conduction oil heat supplying system also comprises an expanding oil tank, the expanding oil tank is communicated with the electric heater through a connecting pipeline, the connecting pipeline is provided with a normally open solenoid valve, the expanding oil tank is positioned above the electric heater, and when the normally open solenoid valve is in an open state, normal temperature conduction oil in the expanding oil tank flows into the electric heater through the connecting pipeline. The conduction oil heat supplying system disclosed by the invention has the beneficial effects that after power is cut off, the normally open solenoid valve on the connecting pipeline is in the open state, the normal temperature conduction oil in the expanding oil tank is directly injected into the electric heater, high temperature hot oil in the electric heater is pushed to be discharged from an outlet, the temperature of an electrical heating element in the electric heater is reduced, and the problems of easy decomposition and serious coking of the conduction oil are solved.
Description
Technical field
The utility model relates to the conduction oil of laboratory blender mill to hot system.
Background technology
Need forward and backward two rollers are warmed to design temperature in the plastic milling process, mainly contain the method for two kinds of pair roller barrel heat temperature raisings at present: one is that Electric heating directly heats; Another is to adopt conduction oil circulating-heating mode.
Adopting the maximum deficiency of electrical heating is that waste heat can not recycle, and cause the waste of resource, and environmental pollution is serious; And conduction oil is circulating-heating, utilize the pipeline roller of coming in and going out, after supplying with the roller heat, with the conduction oil of heat, can carry out a do action at pipeline, so waste heat can 100% recycle and reuse, therefore this structure adopts in a large number in plastic process.
But in the conduction oil flow process, conduction oil easily decomposes and is coking serious at present, has affected the service life of heat transfer efficiency and conduction oil.In addition, existing conduction oil can only be controlled forward and backward two rollers to hot system and synchronously heat up, synchronously lowers the temperature, separately the control roll drum surface temperature.
The utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of mill conduction oil to hot system, to solve conduction oil in prior art, easily decomposes and coking serious problem.
To achieve these goals, the technical solution of the utility model is as follows:
The mill conduction oil is given hot system, comprise oil storage tank, oil circulating pump and electric heater, the entrance point of described oil circulating pump is communicated with oil storage tank, the port of export of oil circulating pump is communicated with electric heater, described electric heater by pipeline respectively with front, rear roller connects, it is characterized in that, also comprise oil expansion tank, oil expansion tank is communicated with electric heater by connecting line, be provided with normally open solenoid valve on described connecting line, and oil expansion tank is positioned at the top of electric heater, when normally open solenoid valve during in open mode, normal temperature conduction oil in oil expansion tank flows in electric heater through connecting line.
In a preferred embodiment of the present utility model, also be provided with ball valve and check valve on the connecting line between described oil expansion tank and electric heater.
In a preferred embodiment of the present utility model, on described oil expansion tank, be provided with liquid level gauge.
In a preferred embodiment of the present utility model, described oil storage tank is provided with emptying pipe.
In a preferred embodiment of the present utility model, the capacity of described oil expansion tank is at least the twice of electric heater internal memory oil capacity.
In a preferred embodiment of the present utility model, also be provided with the oil temperature adjusting device between described electric heater and forward and backward roller, described oil temperature adjusting device comprises the distributing valve that is connected with electric heater, two groups of heat-exchanger rigs and cooling water system, described distributing valve is connected with rear roller with preliminary roller respectively by two groups of heat-exchanger rigs, described heat-exchanger rig comprises normally open solenoid valve, normally closed solenoid valve, heat exchanger and check valve, and described normally closed solenoid valve, heat exchanger, check valve are connected afterwards and normally open solenoid valve is connected in parallel; Described cooling water system is connected with two heat exchangers respectively.
Further, described heat exchanger is plate type heat exchanger.
Further, described forward and backward roller is connected with oil path block, and this oil path block is communicated with oil storage tank by pipeline.
Further, the coolant outlet of cooling water system is communicated with the cooling water inlet of heat exchanger, and the coolant outlet of heat exchanger is communicated with the cooling water refluxing opening of cooling water system by control valve.
The beneficial effects of the utility model are:
1, after outage, normally open solenoid valve on connecting line is open mode, normal temperature conduction oil in oil expansion tank directly injects in electric heater, the high-temperature hot oil that promotes electric heater inside is discharged from outlet, reduce the temperature of heating in electric heater, solve conduction oil and easily decompose and coking serious problem.
2, can regulate arbitrarily the surface temperature of forward and backward two rollers by the oil temperature adjusting device.
Characteristics of the present utility model can be consulted the detailed description of the graphic and following better embodiment of this case and be obtained and be well understood to.
The accompanying drawing explanation
Fig. 1 is principle schematic of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, further set forth the utility model below in conjunction with specific embodiment.
Referring to Fig. 1, the mill conduction oil is given hot system, mainly comprises oil expansion tank 15, oil storage tank 16, oil circulating pump 1, electric heater 2, preliminary roller 8 and rear roller 9.
The entrance point of oil circulating pump 1 is communicated with oil storage tank 16, and the port of export of oil circulating pump 1 is communicated with electric heater 2, the normal temperature oil in oil storage tank 16 is delivered to electric heater and is heated.Be provided with emptying pipe on oil storage tank 16, so that the used time is not discharged conduction oil.
The oil mass that oil expansion tank 15 produces while itself being the conduction oil expanded by heating, collect container of eminence, and the problem raise to overcome oil pressure, be provided with liquid level gauge 14 on oil expansion tank 15.The normal temperature conduction oil is housed in oil expansion tank 15.Oil expansion tank 15 is connected with electric heater 2 by connecting line, is disposed with ball valve 18, normally open solenoid valve 10 and check valve on this connecting line.When design, the capacity of oil expansion tank is at least the twice of electric heater internal memory oil capacity.When mounted, oil expansion tank is positioned at the top of electric heater, so that realize: when normally open solenoid valve, during in open mode, the normal temperature conduction oil in oil expansion tank, under the effect of self gravitation, flows in electric heater through connecting line.
From oil expansion tank 15 top tank filler sleeves add the normal temperature conduction oil, the normal temperature conduction oil is after normally open solenoid valve 10 enters the electric heater heating, flow to the swivel coupling entrance from electric heater top, current, after the oil duct of rear roller is full of oil, flow to oil path block 5 through roller inner tube outside from the swivel coupling bottom, along reflux line, flow to again oil circulating pump suction inlet (or oil storage tank 16) afterwards, after the liquid level gauge 14 of oil expansion tank demonstrates in tank and reaches certain liquid level, falling heat-transfer oil in illustrative system, now due to not energising of system, normally open solenoid valve is in open mode.After energising, normally open solenoid valve 10 cuts out, no longer the new normal temperature conduction oil to the interior injection of electric heater 2.Once have a power failure, normally open solenoid valve 10 is opened, the normal temperature conduction oil in oil expansion tank directly injects in electric heater, and the high-temperature hot oil that promotes electric heater inside is discharged from outlet.
Electric heater 2 and forward and backward roller also are provided with the oil temperature adjusting device between (8,9), and the oil temperature adjusting device comprises the distributing valve 3 be connected with electric heater, two groups of heat-exchanger rigs and cooling water systems 11.The import of distributing valve 3 is communicated with electric heater 2.Distributing valve 3 is connected with rear roller 9 with preliminary roller 8 respectively by two groups of heat-exchanger rigs.In the present embodiment, heat-exchanger rig comprises normally open solenoid valve 12, normally closed solenoid valve 13, plate type heat exchanger 4 and check valve 7, and normally closed solenoid valve 13, plate type heat exchanger 4, check valve 7 connect successively after and normally open solenoid valve 12 be connected in parallel.Be provided with swivel coupling 6 between heat-exchanger rig and preliminary roller or rear roller.Swivel coupling 6 is connected with oil storage tank 16 by an oil path block 5.The deep fat that forward and backward roller flows out enters in oil storage tank 16 after oil path block 5 merges, and forms the action of oil circulation.
The coolant outlet of cooling water system 11 is communicated with the cooling water inlet of heat exchanger, and the coolant outlet of heat exchanger is communicated with the cooling water refluxing opening of cooling water system by control valve 17.After control valve 17 is opened, the cooling water of cooling water system enters plate type heat exchanger, and flows out from coolant outlet, then flow in cooling water system, forms a circulation.When forward and backward roller requires uniform temp, by PLC, control, make deep fat directly enter forward and backward roller by the normally open solenoid valve 12 of two groups of heat-exchanger rigs is rear respectively, heated; When forward and backward roller requires different temperatures, by PLC, control, make normally open solenoid valve 12 energisings of heat-exchanger rig close, normally closed solenoid valve 13 is opened, and deep fat enters in plate type heat exchanger 4, simultaneously along another pipeline, controlling control valve by PLC opens and closes, the cooling water of controlling cooling water system flows in heat exchanger, reduces and enters the oil temperature of roller, thereby reach the temperature requirement of forward and backward roller.Cooling water finally flow in cooling water system, forms a circulation.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has the changes and improvements of various operating conditions, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (9)
1. the mill conduction oil is given hot system, comprise oil storage tank, oil circulating pump and electric heater, the entrance point of described oil circulating pump is communicated with oil storage tank, the port of export of oil circulating pump is communicated with electric heater, described electric heater by pipeline respectively with front, rear roller connects, it is characterized in that, also comprise oil expansion tank, oil expansion tank is communicated with electric heater by connecting line, be provided with normally open solenoid valve on described connecting line, and oil expansion tank is positioned at the top of electric heater, when normally open solenoid valve during in open mode, normal temperature conduction oil in oil expansion tank flows in electric heater through connecting line.
2. mill conduction oil according to claim 1 is given hot system, it is characterized in that, also is provided with ball valve and check valve on the connecting line between described oil expansion tank and electric heater.
3. mill conduction oil according to claim 1 is given hot system, it is characterized in that, on described oil expansion tank, is provided with liquid level gauge.
4. mill conduction oil according to claim 1 is given hot system, it is characterized in that, described oil storage tank is provided with emptying pipe.
5. mill conduction oil according to claim 1 is given hot system, it is characterized in that, the capacity of described oil expansion tank is at least the twice of electric heater internal memory oil capacity.
6. mill conduction oil according to claim 1 is given hot system, it is characterized in that, also be provided with the oil temperature adjusting device between described electric heater and forward and backward roller, described oil temperature adjusting device comprises the distributing valve that is connected with electric heater, two groups of heat-exchanger rigs and cooling water system, described distributing valve is connected with rear roller with preliminary roller respectively by two groups of heat-exchanger rigs, described heat-exchanger rig comprises normally open solenoid valve, normally closed solenoid valve, heat exchanger and check valve, and described normally closed solenoid valve, heat exchanger, check valve are connected afterwards and normally open solenoid valve is connected in parallel; Described cooling water system is connected with two heat exchangers respectively.
7. mill conduction oil according to claim 6 is given hot system, it is characterized in that, described heat exchanger is plate type heat exchanger.
8. mill conduction oil according to claim 6 is given hot system, it is characterized in that, described forward and backward roller is connected with oil path block, and this oil path block is communicated with oil storage tank by pipeline.
9. mill conduction oil according to claim 6 is given hot system, it is characterized in that, the coolant outlet of cooling water system is communicated with the cooling water inlet of heat exchanger, and the coolant outlet of heat exchanger is communicated with the cooling water refluxing opening of cooling water system by control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597219 CN202952416U (en) | 2012-11-12 | 2012-11-12 | Conduction oil heat supplying system of open mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597219 CN202952416U (en) | 2012-11-12 | 2012-11-12 | Conduction oil heat supplying system of open mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202952416U true CN202952416U (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220597219 Expired - Fee Related CN202952416U (en) | 2012-11-12 | 2012-11-12 | Conduction oil heat supplying system of open mill |
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| CN (1) | CN202952416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950665A (en) * | 2012-11-12 | 2013-03-06 | 天津麦世科尔科技咨询有限公司 | Conduction oil heat supplying system of open mill |
| CN106273179A (en) * | 2015-06-02 | 2017-01-04 | 上海泓阳机械有限公司 | The press production line energy-saving and emission-reduction system of a kind of non-pooled heat supply and technique thereof |
-
2012
- 2012-11-12 CN CN 201220597219 patent/CN202952416U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950665A (en) * | 2012-11-12 | 2013-03-06 | 天津麦世科尔科技咨询有限公司 | Conduction oil heat supplying system of open mill |
| CN102950665B (en) * | 2012-11-12 | 2015-05-27 | 天津麦世科尔科技咨询有限公司 | Conduction oil heat supplying system of open mill |
| CN106273179A (en) * | 2015-06-02 | 2017-01-04 | 上海泓阳机械有限公司 | The press production line energy-saving and emission-reduction system of a kind of non-pooled heat supply and technique thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20151112 |
|
| EXPY | Termination of patent right or utility model |