Over-temperature alarm device for grease purification

Abstract

The utility model relates to the technical field of grease treatment, in particular to an over-temperature alarm device for grease purification, which comprises a heating chamber and is characterized in that one end of the heating chamber is communicated with an air supplement fan through an air supplement pipeline, an air supplement adjusting valve is arranged on the air supplement pipeline, an electric heater and a plurality of temperature measuring elements are arranged in the heating chamber, and the temperature measuring elements are connected with the electric heater. The temperature measuring element is connected with the controller; an early warning assembly is arranged on the outer side of the heating chamber and comprises a protection box installed on the ground through a support, a displayer is arranged in the protection box, an operation indicating lamp and an overtemperature indicating lamp are arranged below the displayer, and an alarm is further arranged in the protection box. The controller is further connected with an air supplement adjusting valve, an air supplement machine, a displayer, an operation indicating lamp, an overtemperature indicating lamp and an alarm. According to the utility model, the temperature value monitored by the temperature measuring element can be accurately judged, and early warning can be timely given out, so that a worker can quickly know early warning information so as to timely respond.

Description

Technical Field

[0001] The utility model relates to the technical field of grease treatment, in particular to an over-temperature alarm device for grease purification. Background Art

[0002] A large amount of waste gas will be generated during the grease treatment process, and the waste gas contains some organic pollutants. Therefore, the waste gas generated by the grease treatment needs to be purified before it can be discharged.

[0003] Exhaust gas purification equipment is generally composed of a flame arrester and a catalyst chamber. A heating chamber and a catalyst bed are arranged in the catalyst chamber. That is, the exhaust gas containing organic pollutants is sent into the purification equipment through the induced draft fan. After a series of treatment reactions, the effective removal rate of the exhaust gas reaches the standard, and it is discharged after meeting the national emission standards. Especially in the heating chamber, because a heating device is required to heat the gas to reach the combustion reaction temperature, and then the organic gas is decomposed into carbon dioxide and water through the catalyst bed, the temperature control in the heating chamber is particularly important. At present, the temperature control of the heating device in the heating chamber mostly adopts shutdown operation control, that is, when the temperature is too high, the heating device is stopped to cool it down, but the cooling process of this method is slow, which seriously affects the efficiency of exhaust gas treatment. In addition, there is no corresponding early warning device when the temperature is too high, and the staff cannot be informed in time. Utility Model Content

[0004] The utility model aims to solve the above problem and provides an over-temperature alarm device for grease purification.

[0005] The utility model is realized through the following technical scheme: an over-temperature early warning device for grease purification comprises a heating chamber, characterized in that one end of the heating chamber is connected with an air supply fan through an air supply duct, an air supply regulating valve is provided on the air supply duct, an electric heater and a plurality of temperature measuring elements are provided in the heating chamber, and the temperature measuring elements are connected to a controller; an early warning component is provided outside the heating chamber, the early warning component comprises a protective box installed on the ground through a bracket, a display is provided in the protective box, an operation indicator light and an over-temperature indicator light are provided below the display, and an alarm is also provided in the protective box; the controller is also respectively connected to the air supply regulating valve, the air supply fan, the display, the operation indicator light, the over-temperature indicator light and the alarm.

[0006] Furthermore, the temperature measuring element is a thermocouple element or a thermal resistor element.

[0007] Furthermore, the supplementary air fan adopts a variable frequency fan.

[0008] The beneficial effect of the utility model is that the utility model can accurately judge the temperature value monitored by the temperature measuring element and issue an early warning in time, so that the staff can quickly learn the early warning information so as to respond in time.

[0009] The utility model is connected with other devices through a controller to improve the automatic control of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] In the attached drawings, 1 is a heating chamber, 2 is an air supply regulating valve, 3 is an air supply fan, 4 is an electric heater, 5 is a temperature measuring element, 6 is a protection box, 7 is a display, 71 is an operating indicator light, 72 is an over-temperature indicator light, 8 is an alarm, and 9 is a controller. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and beneficial effects of the present invention more clearly understood, the technical solution of the present invention is further described below in conjunction with embodiments.

[0013] like Figure 1 As shown, an over-temperature warning device for grease purification comprises a heating chamber 1, characterized in that one end of the heating chamber 1 is connected to the supply air fan 3 through a supply air duct, an supply air regulating valve 2 is provided on the supply air duct, in order to facilitate adjustment, the supply air fan 3 adopts a variable frequency fan, and the supply air regulating valve 2 adopts an electric valve with adjustable opening, an electric heater 4 and a plurality of temperature measuring elements 5 are provided in the heating chamber 1, the temperature measuring element 5 adopts a thermocouple element or a thermal resistor element, the temperature measuring element 5 is connected to a controller, and the controller adopts a PLC programmable logic controller; an early warning component is provided on the outside of the heating chamber 1, the early warning component comprises a protective box 6 installed on the ground through a bracket, a display 7 is provided in the protective box 6, an operation indicator light 71 and an over-temperature indicator light 72 are provided below the display 7, and an alarm 8 is also provided in the protective box 6; the controller is also respectively connected to the supply air regulating valve 2, the supply air fan 3, the display 7, the operation indicator light 71, the over-temperature indicator light 72 and the alarm 8.

[0014] When in use, the electric heater 4 heats the heating chamber 1, and after reaching the combustion reaction temperature of the gas, if the electric heater 4 continues to heat, the temperature measuring element 5 transmits the monitored temperature to the controller, and the controller displays the signal through the display 7. The controller is provided with a first-level alarm setting value and a second-level alarm setting value. The temperature monitored by the temperature measuring element 5 is transmitted to the controller for comparison with the alarm setting value. If it is higher than the alarm setting value, the over-temperature indicator light 72 lights up red, and the alarm 8 emits a flashing alarm. At the same time, if it is higher than the first-level alarm setting value, the controller sends a command to the air supply regulating valve 2 and the air supply fan 3 to add fresh air to the heating chamber 1 to dilute and cool the exhaust gas; if it is higher than the second-level alarm setting value, the controller directly sends a command to stop the heater and start the air supply fan 3 and the air supply regulating valve 2 at the same time.

[0015] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art.

Claims

1. An over-temperature alarm device for grease purification, comprising a heating chamber (1), characterized in that: One end of the heating chamber (1) is connected to the air supply fan (3) through an air supply duct, and an air supply regulating valve (2) is provided on the air supply duct. An electric heater (4) and a plurality of temperature measuring elements (5) are provided in the heating chamber (1), and the temperature measuring elements (5) are connected to a controller. An early warning component is provided on the outside of the heating chamber (1), and the early warning component comprises a protection box (6) installed on the ground through a bracket, a display (7) is provided in the protection box (6), and an operation indicator light (71) and an over-temperature indicator light (72) are provided below the display (7). An alarm (8) is also provided in the protection box (6). The controller is also respectively connected to the air supply regulating valve (2), the air supply fan (3), the display (7), the operation indicator light (71), the over-temperature indicator light (72) and the alarm (8).

2. The over-temperature alarm device for grease purification according to claim 1, characterized in that: The temperature measuring element (5) is a thermocouple element or a thermal resistance element.

3. The over-temperature alarm device for grease purification according to claim 1, characterized in that: The air supply fan (3) adopts a variable frequency fan.

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