Electric heat tracing system for concrete foundation of low-temperature ethylene storage tank

Abstract

The utility model relates to the technical field of ethylene storage tanks, and discloses a low-temperature ethylene storage tank concrete foundation electric heat tracing system which comprises a concrete foundation and a storage tank body located above the concrete foundation, and a plurality of thermal insulation pads are fixedly connected between the top of the concrete foundation and the bottom of the storage tank body. The utility model relates to the technical field of ethylene storage tanks. According to the low-temperature ethylene storage tank concrete foundation electric heat tracing system, the air inlet pipe on the air extracting pump is controlled to extract air to the outside, the outside air enters the arc-shaped pipe through the air outlet pipe, the air enters the multiple heating pipes, the air temperature can rise in high-temperature weather, and therefore the high-temperature air enters the multiple heating pipes; if the weather temperature is low, a plurality of heat tracing belts are controlled to heat the heating pipes, so that the plurality of heating pipes can heat and protect the concrete foundation, the concrete foundation is heated in a dual mode, and more cost is saved during use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ethylene storage tank, concretely to a low temperature ethylene storage tank concrete foundation electric heat tracing system. BACKGROUND

[0002] In today's chemical industry, it is often necessary to store products at low temperature or refrigeration temperature, that is, low temperature storage tanks below zero degrees. According to the physical properties of ethylene, the storage temperature of ethylene stored at normal pressure is about -143°C. Due to the extremely low temperature inside the storage tank, although there is heat preservation by thermal insulation materials, there will still be a loss of part of the cold energy, which will cause the freezing and thawing of the tank bottom foundation and the soil near the tank. The repeated occurrence of this situation will cause the uplift of the soil in this part, thereby causing the damage of the concrete foundation of the storage tank and affecting the safety of the storage tank. There are existing patent documents for improvement.

[0003] In Chinese patent CN220744133U, a low temperature ethylene storage tank concrete foundation electric heat tracing system is disclosed, which comprises a protection pipe and a tank bottom. During use, the design temperature of the electric heat tracing system at the bottom of the storage tank is about 4°C, which can effectively offset the cold energy brought by low temperature ethylene, maintain the constant temperature of the concrete foundation and the surrounding soil at the bottom of the storage tank, and protect the concrete foundation of the storage tank. The installation and operation of the electric heat tracing system at the bottom of the storage tank are simple, safe and reliable, and the operation is automatically controlled by a temperature controller, which is economical and low-carbon and energy-saving.

[0004] Although the above-mentioned patent can heat and protect the concrete foundation by multiple protection pipes and inner heat tracing bands, it is necessary to consume a large amount of energy consumption and cost is higher by heating and protecting through multiple inner heat tracing bands. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a low temperature ethylene storage tank concrete foundation electric heat tracing system, which solves the problem of consuming a large amount of energy consumption and higher cost by heating and protecting through multiple inner heat tracing bands.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a low temperature ethylene storage tank concrete foundation electric heat tracing system, comprising a concrete foundation and a storage tank body located above the concrete foundation, a plurality of temperature insulation pads are fixedly connected between the top of the concrete foundation and the bottom of the storage tank body, a support plate is fixedly connected to one side of the concrete foundation, an air suction pump is fixedly connected to the top of the support plate, an air inlet pipe is communicated with the air inlet end of the air suction pump, an air outlet pipe is communicated with the air outlet end of the air suction pump, an arc-shaped pipe is communicated with one end of the air outlet pipe, a plurality of heating pipes are fixedly installed on one side of the concrete foundation through the opening, one end of the heating pipe is communicated with the surface of the arc-shaped pipe, and a heat tracing band is fixedly installed at the bottom of the inner cavity of the heating pipe.

[0007] Preferably, the bottom of the storage tank body is fixedly connected with a plurality of hollow pipes.

[0008] Preferably, the top of the concrete foundation is provided with a plurality of limiting grooves matched with the hollow pipes.

[0009] Preferably, the top of the concrete foundation and between the plurality of thermal insulation pads is fixedly provided with a plurality of temperature sensors.

[0010] Preferably, the top of the air suction pump is fixedly provided with a display.

[0011] The utility model provides a low temperature ethylene storage tank concrete foundation electric heat tracing system.

[0012] The utility model discloses a low temperature ethylene storage tank concrete foundation electric heat tracing system, which has the following beneficial effects compared with the prior art: BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the external structure schematic diagram of the utility model.

[0014] Figure 2 It is the sectional view of the utility model structure.

[0015] Figure 3 It is the bottom view of the utility model storage tank body and hollow pipe structure.

[0016] Figure 4 It is the structure schematic diagram of the utility model concrete foundation, thermal insulation pad, air suction pump, arc pipe, heating pipe, limiting groove and temperature sensor.

[0017] Figure 5 It is the structure schematic diagram of the utility model air suction pump, air inlet pipe, air outlet pipe, arc pipe and heating pipe.

[0018] Figure 6 It is the internal structure schematic diagram of the utility model heating pipe and heat tracing band.

[0019] In the drawing: 1, concrete foundation;2, storage tank body;3, thermal insulation pad;4, support plate;5, air suction pump;6, air inlet pipe;7, air outlet pipe;8, arc pipe;9, heating pipe;10, heat tracing band;11, hollow pipe;12, limiting groove;13, temperature sensor;14, display. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings in the embodiments of the utility model.

[0021] Please refer to Figures 1-6 The utility model provides a technical scheme: a low temperature ethylene storage tank concrete foundation electric heat tracing system, including concrete foundation 1 and the storage tank body 2 located above concrete foundation 1, the top of concrete foundation 1 is fixedly connected with the bottom of storage tank body 2 between several temperature insulation pads 3, temperature insulation pad 3 is rock wool material, one side of concrete foundation 1 is fixedly connected with support plate 4, the top of support plate 4 is fixedly connected with suction pump 5, and suction pump 5 is electrically connected with external power supply, controls through control switch, and the gas inlet end of suction pump 5 is communicated with gas inlet pipe 6, and the gas outlet end of suction pump 5 is communicated with gas outlet pipe 7, one end of gas outlet pipe 7 is communicated with arc pipe 8, and one side of concrete foundation 1 is fixedly installed with several heating pipes 9 by opening opening, and one end of heating pipe 9 is communicated with the surface of arc pipe 8, and heating band 10 is fixedly installed in the bottom of the inner chamber of heating pipe 9, and heating band 10 is electrically connected with external power supply, controls through control switch.

[0022] Further, in order to facilitate indirect contact and slow down low temperature transmission, the bottom of the storage tank body 2 is fixedly connected with a plurality of hollow pipes 11, characterized in that: a plurality of limiting grooves 12 adapted to the hollow pipes 11 are formed in the top of the concrete foundation 1.

[0023] Further, in order to facilitate detection and display of the temperature on the concrete foundation 1, a plurality of temperature sensors 13 are fixedly installed on the top of the concrete foundation 1 between the plurality of temperature insulation pads 3, the temperature sensors 13 are electrically connected with the external power supply and controlled through the control switch, and a display 14 is fixedly installed on the top of the suction pump 5.

[0024] When the temperature is high, the gas inlet pipe 6 of the suction pump 5 is used to draw air, the high-temperature gas outside is introduced into the gas outlet pipe 7, the gas in the gas outlet pipe 7 is introduced into the heating pipes 9 through the arc pipe 8, and then discharged from the right side of the heating pipes 9, so that the high-temperature gas heats the heating pipes 9, and the plurality of heating pipes 9 heat the concrete foundation 1 to prevent the concrete foundation 1 from being damaged by low temperature;

[0025] In the weather of low temperature, the multiple heating pipes 9 are ventilated by the air pump 5 to heat the concrete foundation 1, the temperature of the concrete foundation 1 is detected by the multiple temperature sensors 13, the detected electric signal is converted into a digital signal by the A / D converter, the digital signal is displayed on the display 14, the temperature on the concrete foundation 1 is observed by the display 14, and if the temperature on the concrete foundation 1 is not enough, the multiple heating pipes 9 are heated by controlling the multiple heat tracing bands 10 to heat and protect the concrete foundation 1.

Claims

1. A low-temperature ethylene storage tank concrete foundation electric heating system, comprising a concrete foundation (1) and a storage tank body (2) located above the concrete foundation (1), characterized in that: A plurality of thermal insulation pads (3) are fixedly connected between the top of the concrete foundation (1) and the bottom of the storage tank body (2); a support plate (4) is fixedly connected to one side of the concrete foundation (1); a vacuum pump (5) is fixedly connected to the top of the support plate (4); an air inlet end of the vacuum pump (5) is connected to an air inlet pipe (6); an air outlet end of the vacuum pump (5) is connected to an air outlet pipe (7); one end of the air outlet pipe (7) is connected to an arc-shaped pipe (8); a plurality of heating pipes (9) are fixedly installed on one side of the concrete foundation (1) through an opening; one end of the heating pipe (9) is connected to the surface of the arc-shaped pipe (8); and a heating belt (10) is fixedly installed at the bottom of the inner cavity of the heating pipe (9).

2. The electric heating system for the concrete foundation of a low-temperature ethylene storage tank according to claim 1, characterized in that: A plurality of hollow tubes (11) are fixedly connected to the bottom of the storage tank body (2).

3. The electric heating system for the concrete foundation of a low-temperature ethylene storage tank according to claim 2, characterized in that: The top of the concrete foundation (1) is provided with a plurality of limiting grooves (12) adapted to the hollow tubes (11).

4. The electric heating system for the concrete foundation of a low-temperature ethylene storage tank according to claim 1, characterized in that: A plurality of temperature sensors (13) are fixedly installed on the top of the concrete foundation (1) and between the plurality of thermal insulation pads (3).

5. The electric heating system for the concrete foundation of a low-temperature ethylene storage tank according to claim 1, characterized in that: A display (14) is fixedly mounted on the top of the air pump (5).

Images