Limited heating device of closed-cup flash point equipment

Abstract

The utility model discloses a heating limiting device of closed-cup flash point equipment, which is used on equipment for testing closed-cup flash points of oil products, and comprises a heating component, a voltage regulator and a time relay which are connected in series on a bus, and the two ends of the bus are connected to equipment for testing the closed-cup flash point of the oil product. The heating device can prevent safety and environmental protection risks and equipment safety risks caused by oil evaporation after testers forget to turn off a power supply and continuously heat the oil after the test is finished.

Description

Technical Field

[0001] The utility model relates to the technical field of oil product detection, in particular to a limiting heating device for closed cup flash point equipment. Background Art

[0002] Flash point is a safety indicator for the storage, transportation and use of flammable liquids, and is also an indicator of the volatility of flammable liquids. It is the lowest temperature at which a liquid can vaporize and catch fire using a certain ignition source under a standard pressure of 101.3 kPa and specific test conditions.

[0003] The principle of closed-cup flash point determination for oil products is to load the sample into the oil cup to the ring mark, heat the sample at a very slow and constant speed under continuous stirring, introduce a small flame into the cup at the specified temperature interval while interrupting stirring, and the lowest temperature when the test flame causes the vapor on the sample to flash is taken as the closed-cup flash point. When the closed-cup flash point is determined manually, the oil cup is heated and ignited in an electric furnace, and the flash indicates the end of the flash point test. In the actual process, some quality inspectors forget to turn off the heating after determining the flash point. After they leave, the oil cup continues to be heated, causing the oil vapor to volatilize, affecting the safety, environmental protection, and health of the site. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a limited heating device for closed flash point equipment, which can prevent the test personnel from forgetting to turn off the power after the test and continuing to heat the oil, causing oil evaporation and bringing safety and environmental risks, as well as equipment safety risks.

[0005] The present application provides a limiting heating device for a closed flash point device, which is used on a test device for a closed flash point of an oil product. The heating device comprises a heating component, a voltage regulator and a time relay connected in series to a bus bar; both ends of the bus bar are connected to the test device for a closed flash point of an oil product.

[0006] Furthermore, the heating component is a heating wire with a pressure gauge.

[0007] Furthermore, the voltage regulator is one of a variable resistor, an adjustable resistor, a sliding resistor, and a rotary resistor.

[0008] As a preferred embodiment of the present application, a switch is provided in the heating device.

[0009] Compared with the existing device for limiting heating of closed flash point equipment, the utility model has the following beneficial effects:

[0010] The utility model is an automatic closed cup flash point determination, which can prevent the safety and environmental risks and equipment safety risks caused by the evaporation of oil products due to the continuous heating of oil products by test personnel forgetting to turn off the power after the test is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the structural scheme of the present invention, the following briefly introduces the drawings required for use in the present invention.

[0012] Figure 1 This is a schematic diagram of the control circuit structure for limiting heating of the closed flash point device of this application;

[0013] In the figure, 1-heating component, 2-voltage regulator, 3-time relay, 4-switch. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0015] like Figure 1 As shown, the present application provides a limiting heating device for a closed flash point device, the heating device is used on a test device for a closed flash point of an oil product, the heating device comprises a heating component 1, a voltage regulator 2 and a time relay 3 connected in series on a bus; both ends of the bus are connected to the test device for a closed flash point of an oil product.

[0016] Furthermore, the heating component 1 is a heating wire with a pressure gauge.

[0017] Furthermore, the voltage regulator 2 is one of a variable resistor, an adjustable resistor, a sliding resistor, and a rotary resistor.

[0018] As a preferred embodiment of the present application, a switch 4 is provided in the heating device.

[0019] The heating device of the present application controls the switch of the branch of the heating device by adjusting the duration of the time relay 3, thereby controlling the heating time, and preventing the test personnel from forgetting to turn off the power after the test and continuing to heat the oil, which causes the oil to evaporate and bring safety and environmental risks. Furthermore, according to the big data statistics of gas stations, 99.98% of diesel has a closed cup flash point below 110°C. According to the test method, the heating start and end time is calculated to be 45 minutes, so the time relay 3 is fixed to 45 minutes.

[0020] When it comes to special ultra-high flash point oils, the control time of the time relay can be adjusted to extend, effectively ensuring the safety of equipment use and personnel safety.

[0021] The above description of the embodiments is to facilitate the understanding and application of the present invention by those skilled in the art. It is obvious that those skilled in the art can easily make various improvements to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the embodiments herein, and improvements and modifications that do not depart from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A limited heating device for closed cup flash point equipment, It is characterized in that The heating device is used on the testing equipment for the closed cup flash point of the oil product, and the heating device comprises a heating component, a voltage regulator and a time relay connected in series on the bus; the two ends of the bus are connected to the testing equipment for the closed cup flash point of the oil product.

2. A limiting heating device for a closed cup flash point device according to claim 1, It is characterized in that The heating component is a heating wire with a pressure gauge.

3. The limiting heating device for a closed cup flash point device according to claim 1, It is characterized in that The voltage regulator is one of a variable resistor, an adjustable resistor, a sliding resistor, and a rotary resistor.

4. A limited heating device for a closed cup flash point device according to any one of claims 1 to 3, It is characterized in that The heating device is provided with a switch.

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