CN209492931U - Nitrogen sealing system for die heater oil tank - Google Patents
Nitrogen sealing system for die heater oil tank Download PDFInfo
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- CN209492931U CN209492931U CN201920025457.6U CN201920025457U CN209492931U CN 209492931 U CN209492931 U CN 209492931U CN 201920025457 U CN201920025457 U CN 201920025457U CN 209492931 U CN209492931 U CN 209492931U
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- oil tank
- solenoid valve
- pressure difference
- die heater
- air inlet
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Abstract
The utility model discloses a kind of nitrogen sealing systems for die heater oil tank, comprising: oil tank, the top of oil tank are equipped with repairing mouth, and the bottom of oil tank is equipped with oil outlet, and the side wall of oil tank is equipped with collection port and liquidometer.The first pressure difference switch, the second pressure difference switch, pressure gauge and safety relief valve are additionally provided at the top of oil tank, the first pressure difference switch and the second pressure difference switch are electrically connected with the electric cabinet of die heater.The side wall of oil tank is additionally provided with exhaust outlet, is equipped with the first solenoid valve in exhaust outlet, the first solenoid valve is electrically connected with electric cabinet.The side wall of oil tank is additionally provided with air inlet, and air inlet is connect with external source nitrogen, and second solenoid valve is equipped in air inlet, and second solenoid valve is electrically connected with electric cabinet.The utility model has the beneficial effects that the service life of conduction oil can be extended effectively by high temperature heat conductive oil and air exclusion；More accurate and system the operating pressure of temperature control is more stable；Air pressure and nitrogen amount Automatic Control can be achieved.
Description
Technical field
The utility model relates to the oil tank technical field of sealing technology of die heater, in particular to a kind of nitrogen for die heater oil tank
Sealing system.
Background technique
Die heater controls temperature mistake during copper-clad plate compression moulding, and to chemical reaction kettle and special steel glass etc.
Cheng Zhong, it is desirable that it is higher and higher to the thermally conductive oil temperature used in die heater, and if the temperature of Mo Wennei conduction oil is higher, make
Can all have a great impact with performance and service life.For conduction oil in low-temperature working, operation viscosity is low, and heat conductivity is good, boiling
Point is higher, but in hot operation, easily oxidation, volatilization and coking is contacted with air, to greatly reduce thermally conductive
The service life of oil.Existing die heater is all open type and semi-enclosed state to the graviation tank of die heater system repairing,
All cannot the oxidation of conduction oil easily be caused, is reduced the service life completely and air exclusion.
Utility model content
In view of the problems of the existing technology, the main purpose of the utility model is to provide a kind of for die heater oil tank
Nitrogen sealing system, it is intended to solve the problems, such as that existing oil tank sealing system cannot completely cut off completely conduction oil with air.
To achieve the above object, the utility model proposes the nitrogen sealing system for die heater oil tank, comprising: oil tank,
The top of oil tank is equipped with repairing mouth, and the bottom of oil tank is equipped with oil outlet, and the side wall of oil tank is equipped with collection port and liquidometer.Oil tank
Top is additionally provided with the first pressure difference switch, the second pressure difference switch, pressure gauge and safety relief valve, the first pressure difference switch and the second pressure difference
Switch is electrically connected with the electric cabinet of die heater.The side wall of oil tank is additionally provided with exhaust outlet, and the first solenoid valve is equipped in exhaust outlet, the
One solenoid valve is electrically connected with electric cabinet.The side wall of oil tank is additionally provided with air inlet, and air inlet is connect with external source nitrogen, and air inlet
Second solenoid valve is equipped in mouthful, second solenoid valve is electrically connected with electric cabinet.
Preferably, first by-passing valve in parallel with the first solenoid valve is additionally provided in exhaust outlet.
Preferably, second by-passing valve in parallel with second solenoid valve is equipped in air inlet.
Preferably, third pressure difference switch is additionally provided in air inlet, third pressure difference switch is arranged in second solenoid valve and second
The inlet end of by-passing valve.
Preferably, liquid level is calculated as magnetic double level gauge.
Compared with prior art, the utility model has the beneficial effects that: can effectively by high temperature heat conductive oil and air every
Absolutely, extend the service life of conduction oil；More accurate and system the operating pressure of temperature control is more stable；Air pressure and nitrogen can be achieved
Measure Automatic Control.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is structural schematic diagram of the utility model for one embodiment of nitrogen sealing system of die heater oil tank；
The utility model aim is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific embodiment
The utility model proposes a kind of nitrogen sealing systems for die heater oil tank.
Referring to Fig.1, Fig. 1 is structural representation of the utility model for one embodiment of nitrogen sealing system of die heater oil tank
Figure.
As shown in Figure 1, this is used for the nitrogen sealing system of die heater oil tank, comprising: oil tank in the utility model embodiment
1, the top of oil tank 1 is equipped with repairing mouth, and the bottom of oil tank 1 is equipped with oil outlet 2, and the side wall of oil tank 1 is equipped with collection port 3 and liquidometer
4.When work, oil tank 1 is equipped with the ball valve for preventing conduction oil from flowing back by the repairing into oil tank 1 of repairing mouth, and in repairing mouth
5, by oil outlet 2 to die heater fuel feeding.It is connect by collection port 3 with the expansion cylinder oil spilling mouth pipe of die heater, it is swollen for recycling
Oil vapour in swollen cylinder, and the liquid level in oil tank 1 is detected by liquidometer 4.
The top of oil tank 1 is additionally provided with the first pressure difference switch 6, the second pressure difference switch 7, pressure gauge 8 and safety relief valve 9, the
One pressure difference switch 6 and the second pressure difference switch 7 are electrically connected with the electric cabinet of die heater 10, the first pressure difference switch 6 and the second pressure difference
Whether the pressure value that switch 7 is used to detect nitrogen in oil tank 1 exceeds the preset pressure value of electric cabinet 10 of die heater, pressure gauge 8
For the pressure value in real-time monitoring oil tank 1, safety relief valve 9 is used for 1 exhaust pressure relief of oil tank, to prevent pressure in oil tank 1 super
The safe pressure value that oil tank 1 is born out.
The side wall of oil tank 1 is additionally provided with exhaust outlet 11, is equipped with the first solenoid valve 12, the first solenoid valve 12 in the exhaust outlet 11
It is electrically connected with the electric cabinet 10 of die heater.The side wall of oil tank 1 is additionally provided with air inlet 13, and air inlet 13 and external source nitrogen connect
It connects, and is equipped with second solenoid valve 14 in air inlet 13, second solenoid valve 14 is electrically connected with the electric cabinet 10 of die heater.When work,
The electric cabinet 10 of die heater is preset with the high-pressure value and triggering 7 work of the second pressure difference switch of triggering the first pressure difference switch 6 work
The low pressure value of work.When the pressure in oil tank 1 is higher than preset high-pressure value, the first pressure difference switch 6 is triggered, automatically controlled
Case 10 controls the first solenoid valve 12 conducting in exhaust outlet 11, and the extra pressure in oil tank 1 is discharged by exhaust outlet 11.Work as oil
When pressure in tank 1 is lower than preset low pressure value, the second pressure difference switch 7 is triggered, and electric cabinet 10 controls in air inlet 13
Second solenoid valve 14 be connected, source nitrogen supplements nitrogen into oil tank 1 by air inlet 13.
Specifically, in the present embodiment, it is the pressure for balancing both ends when the first solenoid valve 12 is opened, is also set in exhaust outlet 11
There is first by-passing valve 15 in parallel with the first solenoid valve 12.
Specifically, in the present embodiment, it is the pressure for balancing both ends when second solenoid valve 14 is opened, is equipped in air inlet 13
Second by-passing valve 16 in parallel with second solenoid valve 14.
The working principle of technical solutions of the utility model:
Before work, the first solenoid valve 12 in the second solenoid valve 14 and exhaust outlet 11 in air inlet 13 is both turned on, nitrogen
Source inputs nitrogen into oil tank 1 through air inlet 13, and the air in oil tank 1 is discharged by exhaust outlet 11, until liquid in oil tank 1
Face is completely filled with nitrogen, and realization completely cuts off high temperature heat conductive oil with air completely.
When work, since temperature constantly increases, the volume expansion of conduction oil leads to nitrogen in oil tank 1 for conduction oil in oil tank 1
Atmospheric pressure increases, and when the pressure in oil tank 1 is higher than 10 preset high-pressure value of electric cabinet, the first pressure difference switch 6 is triggered,
Electric cabinet 10 controls the first solenoid valve 12 conducting in exhaust outlet 11, and the extra pressure in oil tank 1 is discharged by exhaust outlet 11.
When stopping working or switching to low-temperature working by high temperature, if the pressure in oil tank 1 is lower than the preset low pressure value of electric cabinet 10
When, the second pressure difference switch 7 is triggered, electric cabinet 10 control air inlet 13 in second solenoid valve 14 be connected, source nitrogen by into
Port 13 supplements nitrogen into oil tank 1, to realize that the conduction oil in oil tank 1 also completely cuts off with air completely during the work time.
Compared with prior art, the utility model has the beneficial effects that: can effectively by high temperature heat conductive oil and air every
Absolutely, extend the service life of conduction oil；More accurate and system the operating pressure of temperature control is more stable；Air pressure and nitrogen can be achieved
Measure Automatic Control.
Preferably, in the present embodiment, pressure when nitrogen is supplemented, to nitrogen sealing system for convenience of detection source nitrogen with true
Protecting source nitrogen has enough pressure to add in nitrogen sealing system, and third pressure difference switch 17, third pressure are additionally provided in air inlet 13
The inlet end of second solenoid valve 14 and the second by-passing valve 16 is arranged in difference switch 17.When third pressure difference switch 17 detects source nitrogen
Pressure when supplementing nitrogen to nitrogen sealing system is less than setting value, illustrates that source nitrogen is in nitrogen deficiency or nitrogen-free state, at this time
Warning device can issue warning note, and staff is prompted to replace source nitrogen.
Preferably, in the present embodiment, for convenience of the case where intuitively checking oil level in oil tank 1, liquidometer 4 is magnetic turning plate
Liquidometer 4.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (5)
1. a kind of nitrogen sealing system for die heater oil tank, comprising: oil tank, the top of the oil tank is equipped with repairing mouth, described
The bottom of oil tank is equipped with oil outlet, and the side wall of the oil tank is equipped with collection port and liquidometer；It is characterized in that, the top of the oil tank
Portion is additionally provided with the first pressure difference switch, the second pressure difference switch, pressure gauge and safety relief valve, first pressure difference switch and described
Two pressure difference switches are electrically connected with the electric cabinet of die heater；The side wall of the oil tank is additionally provided with exhaust outlet, sets in the exhaust outlet
There is the first solenoid valve, first solenoid valve is electrically connected with the electric cabinet；The side wall of the oil tank is additionally provided with air inlet, described
Air inlet is connect with external source nitrogen, and second solenoid valve, the second solenoid valve and the electricity are equipped in the air inlet
Control case electrical connection.
2. being used for the nitrogen sealing system of die heater oil tank as described in claim 1, which is characterized in that also set in the exhaust outlet
There is first by-passing valve in parallel with first solenoid valve.
3. being used for the nitrogen sealing system of die heater oil tank as described in claim 1, which is characterized in that be equipped in the air inlet
Second by-passing valve in parallel with the second solenoid valve.
4. being used for the nitrogen sealing system of die heater oil tank as described in claim 1, which is characterized in that also set in the air inlet
There is third pressure difference switch, the inlet end of the second solenoid valve and the second by-passing valve is arranged in the third pressure difference switch.
5. the nitrogen sealing system according to any one of claims 1-4 for die heater oil tank, which is characterized in that the liquid level
It is calculated as magnetic double level gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920025457.6U CN209492931U (en) | 2019-01-07 | 2019-01-07 | Nitrogen sealing system for die heater oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920025457.6U CN209492931U (en) | 2019-01-07 | 2019-01-07 | Nitrogen sealing system for die heater oil tank |
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| Publication Number | Publication Date |
|---|---|
| CN209492931U true CN209492931U (en) | 2019-10-15 |
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ID=68155341
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920025457.6U Active CN209492931U (en) | 2019-01-07 | 2019-01-07 | Nitrogen sealing system for die heater oil tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109775166A (en) * | 2019-01-07 | 2019-05-21 | 深圳市奥德机械有限公司 | Nitrogen sealing system for die heater oil tank |
-
2019
- 2019-01-07 CN CN201920025457.6U patent/CN209492931U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109775166A (en) * | 2019-01-07 | 2019-05-21 | 深圳市奥德机械有限公司 | Nitrogen sealing system for die heater oil tank |
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