Improved electric heat tracing heat preservation box

Abstract

The utility model provides an improved electric heat tracing heat insulation box which can find faults in time, and is good in heat insulation effect and high in measurement efficiency. The device comprises a box body, a measuring instrument and a temperature control system are installed in the box body, a measuring pipeline extends into the box body from the outside of the box body to be connected with the measuring instrument, a heat tracing cable is wound on the measuring pipeline, the temperature control system comprises a temperature controller, a heater and a heat tracing cable junction box, and the temperature controller is in electric control connection with the heater. The heat tracing cable junction box is in electric control connection with a heat tracing cable; the temperature control system is in electric control connection with a remote control system; the temperature control system further comprises a fuse and four circuit break switches, and the four circuit break switches are respectively connected with a main power supply, a temperature controller, a heater and a heat tracing cable junction box of the temperature control system in an electric control mode. The two fuses are respectively connected with a main power supply of the temperature control system and the heat tracing cable junction box; and a temperature measuring thermal resistor is also arranged in the box body and is in electric control connection with a remote control system.

Description

Technical Field

[0001] The utility model relates to the field of power plant instrument heating, in particular to an improved electric heating insulation box. Background Art

[0002] In the low temperature environment of high-cold areas, when the measured medium is transmitted to the measuring instrument through the measuring pipeline, the measuring medium often freezes, solidifies, and precipitates crystals due to the low ambient temperature, causing the material to block the instrument measuring pipeline, abnormal feedback signals, and damage the instrument equipment, affecting the safe and stable operation of the device. Therefore, the effectiveness of the insulation and heating of the instrument and the instrument measuring pipeline is extremely important.

[0003] At present, the electric heating of transmitters is mostly heated by an insulation box. The temperature in the insulation box is usually automatically controlled within a range. However, since the measurement and insulation operations are usually automated and unmanned, when the temperature of the insulation box is too high or too low due to a fault in the electric heating circuit, the staff cannot discover it in time. The fault can only be discovered during regular inspections, causing the instrument and the insulation box to be unable to operate for a long time, affecting the insulation effect and measurement efficiency. Summary of the invention

[0004] Aiming at the problem that the failure of the existing insulation box cannot be discovered in time, which affects the insulation effect and measurement efficiency, the utility model provides an improved electric heating insulation box, which can discover the failure in time, has good insulation effect and high measurement efficiency.

[0005] An improved electric heating insulation box, comprising a box body, wherein a measuring instrument and a temperature control system are installed in the box body, a measuring pipeline extends from outside the box body into the box body to connect the measuring instrument, the measuring pipeline is wound with a heating cable, the temperature control system comprises a temperature controller, a heater, and a heating cable junction box, the temperature controller is electrically connected to the heater, and the heating cable junction box is electrically connected to the heating cable, characterized in that: the temperature control system is electrically connected to a remote control system; the temperature control system also comprises a fuse and a circuit breaker, the circuit breaker has four circuit breakers, and the four circuit breakers are electrically connected to the main power supply of the temperature control system, the temperature controller, the heater and the heating cable junction box respectively; there are two fuses, which are respectively connected to the main power supply of the temperature control system and the heating cable junction box; a temperature measuring thermal resistor is also installed in the box body, and the temperature measuring thermal resistor is electrically connected to the remote control system.

[0006] It is further characterized by:

[0007] The temperature control system also includes a switch indicator light, which is electrically connected to the main power supply of the temperature control system and the heating cable junction box;

[0008] The inner wall of the box body is connected with a heat-insulating material layer;

[0009] A rainproof eave is installed on the top of the box;

[0010] The box body is provided with a transparent observation port;

[0011] The material of the thermal insulation material layer is plastic foam, or heat-resistant sponge, or high-temperature resistant asbestos;

[0012] The remote control system is a Siemens PCS7 control system or a Zhejiang Zhongkong ECS700 control system.

[0013] After adopting the above structure of the utility model, the staff can remotely know the temperature measured by the temperature measuring resistor in the incubator and the circuit operation status of the temperature control system in real time through the remote control system. When the temperature is abnormal or the circuit of the incubator fails, the staff can timely discover and handle the failure through the remote control system, ensuring a better insulation effect and improving the measurement efficiency. The setting of the insulation material layer can prevent the heat loss of the heater, and the rainproof eaves can prevent the rain and snow from covering the box body and causing the heat loss in the incubator, further ensuring a better insulation effect. The setting of the switch indicator light and the transparent observation port allows the staff to quickly know the working status of the temperature control system of the incubator by observing the switch indicator light when the remote control system fails, further improving the measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 2 This is a circuit diagram of the temperature control system of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the box body of the utility model. DETAILED DESCRIPTION

[0017] See Figures 1 to 3 An improved electric heat tracing insulation box includes a box body 1, a measuring instrument (not shown in the figure) and a temperature control system are installed in the box body 1, a measuring pipeline (not shown in the figure) extends from the outside of the box body 1 into the box body 1 to connect the measuring instrument, and a heating cable 9 is wound around the measuring pipeline. The temperature control system includes a temperature controller 2, a heater 3, and a heating cable junction box 4. The temperature controller 2 is electrically connected to the heater 3, and the heating cable junction box 4 is electrically connected to the heating cable. The heating cable junction box 4 controls the switch of the heating cable 9, and the heating cable 9 is used to prevent the measurement medium in the measuring pipeline outside the insulation box from condensing. Figure 1 , Figure 2 The arrangement in the figure does not represent the spatial position of the components, and the heater 3 can be arranged on the side or bottom of the box 1.

[0018] The temperature control system is electrically connected to a remote control system (not shown in the figure), which is a Siemens PCS7 control system or a Zhejiang Zhongkong ECS700 control system. A temperature measuring thermal resistor 5 is also installed in the box 1, which is electrically connected to the remote control system. The temperature measuring thermal resistor 5 is used to measure the temperature in the incubator in real time and transmit it to the remote control system; the temperature control system also includes a fuse 6 and a circuit breaker 7. There are four circuit breakers 7, and the four circuit breakers 7 are electrically connected to the main power supply of the temperature control system, the temperature controller 2, the heater 3 and the heating cable junction box 4; there are two fuses 6, which are respectively connected to the main power supply of the temperature control system and the heating cable junction box 4. The fuse 6 can be blown in time when the temperature control system is short-circuited to prevent the components from burning. The circuit breaker 7 controls the opening and closing of the main power supply of the temperature control system, the temperature controller 2, the heater 3 and the heating cable junction box 4. The main power failure signal and the junction box power failure signal are connected to the remote control system to realize remote real-time monitoring of the on-site incubator.

[0019] The temperature control system also includes a switch indicator light 8, which is electrically connected to the main power supply of the temperature control system and the heating cable junction box 4, and is used to display the power switch status of the temperature control system; the box body 1 is provided with a transparent observation port for observing the switch indicator light 8.

[0020] The inner wall of the box body 1 is connected with a thermal insulation material layer, which is made of plastic foam, heat-resistant sponge, or high-temperature resistant asbestos to prevent heat loss from the heater 3; a rainproof eaves is installed on the top of the box body 1 to prevent rain and snow from covering the box body 1 and causing heat loss in the insulation box.

[0021] When in use, a normal temperature range of the incubator is set, and the temperature control system monitors the temperature in real time. When the air temperature is close to the condensation point of the measured medium, the temperature controller 2 controls the heater 3 to start heating. After heating to the specified temperature, the temperature controller 2 controls the heater 3 to stop heating. When the incubator is operating normally, the temperature of the incubator is always within the specified temperature range due to the automatic adjustment of the temperature control system. When the incubator fails, the temperature of the incubator deviates from the normal value, and the temperature measuring thermal resistor 5 and the temperature control system send a high temperature alarm or a low temperature alarm to the remote control system, and display the circuit fault location, so that the staff can take corresponding measures in time.

Claims

1. An improved electric heating insulation box, comprising a box body, a measuring instrument and a temperature control system installed in the box body, a measuring pipeline extending from the outside of the box body into the box body to connect the measuring instrument, the measuring pipeline is wound with a heating cable, the temperature control system comprises a temperature controller, a heater, and a heating cable junction box, the temperature controller is electrically connected to the heater, and the heating cable junction box is electrically connected to the heating cable, characterized in that: The temperature control system is electrically connected to a remote control system; the temperature control system further comprises a fuse and a circuit breaker, wherein there are four circuit breakers, and the four circuit breakers are electrically connected to a main power supply of the temperature control system, the temperature controller, the heater and the heating cable junction box respectively; There are two fuses, which are respectively connected to the main power supply of the temperature control system and the heating cable junction box; a temperature measuring thermal resistor is also installed in the box, and the temperature measuring thermal resistor is electrically connected to the remote control system.

2. The improved electric heating insulation box according to claim 1, characterized in that: The temperature control system also includes a switch indicator light, which is electrically connected to a main power supply of the temperature control system and the heating cable junction box.

3. An improved electric heating insulation box according to claim 1 or 2, characterized in that: The inner wall of the box body is connected with a heat-insulating material layer.

4. An improved electric heating insulation box according to claim 1 or 2, characterized in that: A rainproof eave is installed on the top of the box body.

5. An improved electric heating insulation box according to claim 1 or 2, characterized in that: The box body is provided with a transparent observation port.

6. The improved electric heating insulation box according to claim 3, characterized in that: The material of the thermal insulation material layer is plastic foam, or heat-resistant sponge, or high-temperature-resistant asbestos.

7. An improved electric heating insulation box according to claim 1 or 2, characterized in that: The remote control system is a Siemens PCS7 control system or a Zhejiang Zhongkong ECS700 control system.

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