Liquid energy heating thermostats

This liquid energy heating device, which utilizes electromagnetic heating and spiral blade flow guidance, solves the problems of heat loss and noise in liquid energy insulation in high-altitude and cold regions. It achieves efficient, energy-saving, safe, and convenient heating, and is suitable for liquid energy insulation of drilling platforms.

CN224680953UActive Publication Date: 2026-08-25CNPC BOHAI DRILLING ENG +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522117654.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-08-25
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

Existing liquid energy heating devices suffer from problems such as large heat loss, high noise, large equipment size, high maintenance costs, and poor safety in high-altitude and cold regions. In particular, they cannot effectively keep diesel fuel warm in drilling platforms, which affects production.

Method used

The antifreeze is heated by an electromagnetic heating element and heat exchange occurs within the insulated housing via a spiral blade. Combined with a control device and leakage protection device, the current is stable, heat loss and noise are reduced, and the use of an explosion-proof box enhances safety and facilitates handling.

Benefits of technology

It achieves efficient and energy-saving heating, reduces heat loss and noise, lowers maintenance costs, and improves safety and convenience, making it suitable for liquid energy insulation in cold regions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224680953U_ABST
    Figure CN224680953U_ABST
Patent Text Reader

Abstract

The utility model belongs to liquid energy heating and heat preservation technical field discloses a kind of liquid energy heating thermostats, including box, water tank filled with antifreeze is fixedly arranged in box, water pump for circulating antifreeze, electromagnetic heating assembly for heating antifreeze and control device, the water inlet of water pump is connected with water tank by pipeline, the water outlet of water pump is connected with electromagnetic heating assembly by pipeline;It also includes heat exchange device being located at the outside of box, heat exchange device includes the heat preservation shell for circulating antifreeze, the heat exchange pipe for circulating liquid energy is penetrated through heat preservation shell, spiral blade for flow guide is fixedly arranged in heat preservation shell, the water outlet of electromagnetic heating assembly is fixedly connected with heat preservation shell by outlet tube, heat preservation shell is fixedly connected with water tank by backwater pipe.The utility model can efficiently energy-saving heating, reduce maintenance cost, reduce heating noise, and be applicable to liquid energy heating and heat preservation in high-cold region.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of liquid energy heating and heat preservation technology, and relates to a liquid energy heating device, specifically a liquid energy heating constant temperature device. Background Technology

[0002] In the process of oil extraction in cold regions, the insulation measures of the liquid energy (diesel) used in drilling platforms are crucial. If the diesel in the drilling platform's fuel tank is waxed due to low temperature, production cannot proceed. Currently, in the cold season, the liquid energy is generally insulated by wrapping the equipment with felt, heating tape, or using resistance heaters (such as electric steam generators). However, the insulation effect of wrapping with felt and heating tape is poor. Resistance heating has the following disadvantages: (1) Whether the resistance material is inside or outside, it is conducted through the heat transfer medium, which poses a risk of leakage due to corrosion or breakdown of the medium; (2) The relay directly supplies power to the resistance rod, resulting in a large impact current, which is prone to overcurrent impact or voltage fluctuation, causing damage to other electrical appliances; (3) The liquid energy is insulated by wrapping the equipment with felt, heating tape, or using resistance heaters (such as electric steam generators) in the cold season. Heat is transferred to the water tank, resulting in large heat loss and localized heating, which easily leads to scale buildup, affecting heat conduction. Furthermore, the material degrades significantly, resulting in low thermal efficiency. (4) The resistance wire (tube) generally needs to be replaced every 15,000 hours. Otherwise, the increased energy consumption and reduced heating efficiency will increase the cost of insulation. Regular descaling is also required, increasing the cost of manual maintenance. (5) The resistance heating power supply produces a "buzzing" noise, and when the surface water temperature is high, bubbles will make the sound of boiling water, making the entire production environment noisier. (6) The large size makes it inconvenient to move the equipment. Utility Model Content

[0003] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a liquid energy heating and constant temperature device to achieve efficient heating of liquid energy, reduce heat loss, reduce damage to other electrical appliances, and reduce noise.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A liquid energy heating and temperature control device includes a housing, inside which is fixed a water tank for holding antifreeze, a water pump for circulating antifreeze, an electromagnetic heating component for heating antifreeze, and a control device. The inlet of the water pump is connected to the water tank through a pipeline, and the outlet of the water pump is connected to the electromagnetic heating component through a pipeline. The signal output terminal of the control device is connected to the signal input terminals of the water pump and the electromagnetic heating component, respectively. It also includes a heat exchange device located outside the box. The heat exchange device includes an insulated shell for circulating antifreeze, a heat exchange pipe that passes through the insulated shell for circulating liquid energy, a spiral blade for guiding flow fixed inside the insulated shell, and the outlet of the electromagnetic heating component is fixedly connected to the insulated shell through an outlet pipe. The insulated shell is fixedly connected to the water tank through a return pipe.

[0005] As a limitation of this utility model, the box is a positive pressure explosion-proof box, and the box is provided with a compressed gas interface.

[0006] As another limitation of this utility model, the top of the box is provided with a water inlet, which is sealed by a cover, and the water inlet is connected to the water tank through a pipe.

[0007] As a limitation of this utility model, the cover has a built-in vent hole, and a filter screen is fixedly installed at the vent hole.

[0008] As a further limitation of this utility model, a leakage current protection device is fixedly provided on the box.

[0009] As a third limitation of this utility model, a temperature sensor is provided on the output pipe of the electromagnetic heating assembly, and the signal output terminal of the temperature sensor is connected to the signal input terminal of the control device.

[0010] As a limitation of this utility model, the water pump is a high-temperature circulating water pump.

[0011] As a further limitation of this utility model, the heat exchange tube is fixed at the center of the insulation shell.

[0012] As a further limitation of this utility model, the control device includes a controller disposed inside the box and a control panel fixed on the box. The signal output terminal of the temperature sensor is connected to the signal input terminal of the controller, and the signal output terminal of the controller is connected to the signal input terminals of the water pump and the electromagnetic heating component, respectively.

[0013] As a further limitation of this utility model, a baffle is fixedly provided inside the box, dividing the box into two cavities. The control device is located in the cavity on one side of the baffle, and the water tank, water pump and electromagnetic heating assembly are located in the cavity on the other side of the baffle.

[0014] By adopting the above-mentioned technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows: (1) This utility model heats the antifreeze by electromagnetic heating and delivers the high-temperature antifreeze to the heat insulation shell. The liquid in the heat exchange tube can absorb the heat of the antifreeze evenly and quickly through the guide of the spiral blades in the heat insulation shell, avoiding uneven temperature conduction of the antifreeze in the shell. This ensures a high heat exchange rate and saves the electrical energy used for heating, achieving the purpose of high efficiency and energy saving. At the same time, the antifreeze has a low freezing point, so even if the machine stops or the heating is interrupted due to a fault, it can still maintain a liquid state and can circulate quickly when restarted. (2) The electromagnetic heating method of this utility model eliminates resistance, which can not only maintain stable current and voltage, reduce damage to other electrical appliances, but also prevent local high temperature from producing scale, reduce the cost of later replacement and maintenance, and improve heating efficiency. (3) The electromagnetic heating method of this utility model has low noise and can optimize the production environment; (4) The box of this utility model is an explosion-proof box, which can meet the needs of the on-site production environment, prevent flammable gas outside the box from entering the box, improve production safety, and the leakage protection device cuts off the power supply in time when leakage occurs, further improving safety. (5) The handle on the box of this utility model is easy to carry and improves the convenience of use.

[0015] In summary, this invention provides efficient and energy-saving heating, reduces maintenance costs and heating noise, and is suitable for liquid energy heating and insulation in cold regions. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a perspective exploded view of an embodiment of the present invention; Figure 3 This is a perspective structural diagram of the box body according to an embodiment of the present utility model; Figure 4 This is a perspective structural diagram of the heat exchange device according to an embodiment of the present utility model; Figure 5 This is a right-side structural schematic diagram of the box body according to an embodiment of the present utility model.

[0018] In the diagram: 1. Housing; 11. Compressed gas interface; 12. Baffle; 13. Handle; 14. Water inlet; 2. Water tank; 3. Water pump; 4. Electromagnetic heating assembly; 5. Heat exchange device; 51. Insulation shell; 52. Spiral blades; 53. Heat exchange tube; 54. Water outlet pipe; 55. Water return pipe; 6. Control device; 61. Controller; 62. Control panel; 63. Temperature sensor; 7. Power switch; 8. Residual current device. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0020] Example: Liquid energy heating and constant temperature device like Figure 1 , Figure 2 As shown, this embodiment includes a housing 1, a water tank 2 fixed inside the housing 1, a water pump 3, an electromagnetic heating component 4, and a control device 6. A heat exchange device 5 is provided outside the housing 1. The water tank 2 contains antifreeze. The water pump 3 pumps the antifreeze in the water tank 2 into the electromagnetic heating component 4 for heating. After heating, the antifreeze is passed into the heat exchange device 5 and then back to the water tank 2, forming a circulation path. This ensures that the temperature of the antifreeze is always maintained within a certain range during the circulation process, achieving the purpose of heat preservation and preventing the liquid energy from freezing.

[0021] like Figure 3 As shown, the enclosure 1 in this embodiment is a positive pressure explosion-proof enclosure. Enclosure 1 is equipped with a compressed gas interface 11, through which compressed air of 100-700 Pa is connected to prevent flammable gases from outside the enclosure 1 from entering, thus meeting on-site explosion-proof requirements. A baffle 12 is fixedly installed inside enclosure 1, dividing it into two chambers. The baffle 12 has ventilation holes. The control device 6 is located in the chamber on one side of the baffle 12, while the water tank 2, water pump 3, and electromagnetic heating assembly 4 are located in the chamber on the other side of the baffle 12, achieving electro-hydraulic separation and enhancing safety. Two handles 13 are fixedly installed on the top of enclosure 1 for easy handling.

[0022] Water tank 2 is fixed to the inner wall of tank body 1. A water inlet 14 is located on the top of tank body 1. Water inlet 14 is connected to water tank 2 via a pipe, through which antifreeze is added to water tank 2. Water inlet 14 is sealed with a cap. The cap uses a structure with a built-in breather hole, as is common in the prior art, for the exchange of hot and cold gases. A filter screen is installed at the breather hole to prevent debris from entering water tank 2 through the breather hole.

[0023] In this embodiment, water pump 3 is used to circulate antifreeze. The inlet of water pump 3 is connected to water tank 2 via a pipeline, and the outlet of water pump 3 is connected to electromagnetic heating assembly 4 via a pipeline, circulating the antifreeze in water tank 2 to electromagnetic heating assembly 4 for heating. In this embodiment, water pump 3 is a 160W three-speed adjustable high-temperature circulating pump, located below electromagnetic heating assembly 4, used to circulate antifreeze throughout the entire circuit.

[0024] In this embodiment, the electromagnetic heating component 4 uses a 3.5KW electromagnetic heating drive board. Based on factors such as current, voltage, frequency, and temperature, the MCU automatically adjusts the power to the maximum and optimal level to improve product lifespan. The electromagnetic heating component 4 is used to heat the antifreeze and then deliver the heated antifreeze to the heat exchange device 5. A temperature sensor 63 is installed on the output pipe of the electromagnetic heating component 4 to detect the temperature of the antifreeze after electromagnetic heating.

[0025] like Figure 4 As shown, the heat exchange device 5 includes an insulated shell 51 for circulating antifreeze and a heat exchange tube 53 penetrating the insulated shell 51 for circulating liquid energy. In this embodiment, the heat exchange tube 53 is made of copper, which can quickly conduct heat and raise the temperature, improving heat exchange efficiency. The insulated shell 51 has a cylindrical structure and is sealed at both ends. A spiral blade 52 for guiding the flow is fixed inside the insulated shell 51. The outer diameter of the spiral blade 52 is close to the inner wall of the insulated shell 51, and the two ends of the spiral blade 52 are fixed to the inner walls at both ends of the insulated shell 51. The outlet of the electromagnetic heating component 4 is fixedly connected to the insulated shell 51 through an outlet pipe 54, and the insulated shell 51 is fixedly connected to the water tank 2 through a return pipe 55. The heat exchange tube 53 passes through the spiral blade 52 and runs through both ends of the insulation shell 51. The heat exchange tube 53 is used to circulate liquid energy and exchange heat with the antifreeze in the insulation shell 51. The heat exchange tube 53 is located at the center of the spiral blade 52 (i.e., the center of the insulation shell 51) and can fully absorb the heat of the antifreeze.

[0026] like Figure 5As shown, the control device 6 includes a controller 61 housed inside the enclosure 1 and a control panel 62 fixed to the enclosure 1. The control panel 62 is fixed to the enclosure 1, and the required parameters, namely the minimum and maximum temperatures for antifreeze heating, are set on the control panel 62. The signal output terminal of the control panel 62 is connected to the signal input terminal of the controller 61, and the signal output terminal of the temperature sensor 63 is connected to the signal input terminal of the controller 61. The signal output terminal of the controller 61 is connected to the signal input terminals of the water pump 3 and the electromagnetic heating assembly 4, respectively. When the temperature sensor 63 detects that the antifreeze temperature after electromagnetic heating has risen to the set temperature, the controller 61 stops supplying power to the water pump 3 and the electromagnetic heating assembly 4 to prevent overheating. When the temperature sensor 63 detects that the antifreeze temperature is lower than the set temperature, the controller 61 resumes supplying power to the water pump 3 and the electromagnetic heating assembly 4 to continue circulating the antifreeze, ensuring that the antifreeze temperature is maintained at a basically constant temperature. A power switch 7 is installed on the enclosure 1 to cut off the power supply. A leakage current protector 8 is also installed on the enclosure 1 to automatically cut off the power supply when there is a leakage, so as to prevent electric shock accidents and electrical fires.

[0027] When using this embodiment, antifreeze is added to the water tank 2 through the water inlet 14, liquid energy is introduced into the heat exchange tube 53, and the whole device is started. After being electromagnetically heated, the antifreeze enters the insulation shell 51. The liquid energy in the insulation shell 51 exchanges heat with the antifreeze, so that the liquid energy absorbs heat and achieves the purpose of antifreeze.

[0028] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A liquid energy heating and temperature control device, characterized in that: The device includes a housing, inside which is fixed a water tank for holding antifreeze, a water pump for circulating antifreeze, an electromagnetic heating component for heating the antifreeze, and a control device. The water pump inlet is connected to the water tank via a pipeline, and the water pump outlet is connected to the electromagnetic heating component via a pipeline. The signal output terminal of the control device is connected to the signal input terminals of the water pump and the electromagnetic heating component, respectively. It also includes a heat exchange device located outside the box. The heat exchange device includes an insulated shell for circulating antifreeze, a heat exchange pipe that passes through the insulated shell for circulating liquid energy, a spiral blade for guiding flow fixed inside the insulated shell, and the outlet of the electromagnetic heating component is fixedly connected to the insulated shell through an outlet pipe. The insulated shell is fixedly connected to the water tank through a return pipe.

2. The liquid energy heating and constant temperature device according to claim 1, characterized in that: The enclosure is a positive pressure explosion-proof enclosure, and a compressed gas interface is provided on the enclosure.

3. The liquid energy heating and constant temperature device according to claim 1 or 2, characterized in that: The top of the box is equipped with a water inlet, which is sealed with a cover. The water inlet is connected to the water tank through a pipe.

4. The liquid energy heating and constant temperature device according to claim 3, characterized in that: The cover has a built-in vent, and a filter screen is fixed at the vent.

5. The liquid energy heating and constant temperature device according to claim 4, characterized in that: A leakage current protection device is fixed on the enclosure.

6. The liquid energy heating and constant temperature device according to claim 1, 2, 4 or 5, characterized in that: A temperature sensor is installed on the output pipe of the electromagnetic heating assembly, and the signal output terminal of the temperature sensor is connected to the signal input terminal of the control device.

7. The liquid energy heating and constant temperature device according to claim 6, characterized in that: The water pump is a high-temperature circulating water pump.

8. The liquid energy heating and constant temperature device according to claim 7, characterized in that: The heat exchange tube is fixed at the center of the insulation shell.

9. The liquid energy heating and constant temperature device according to claim 7 or 8, characterized in that: The control device includes a controller located inside the housing and a control panel fixed to the housing. The signal output terminal of the temperature sensor is connected to the signal input terminal of the controller, and the signal output terminal of the controller is connected to the signal input terminals of the water pump and the electromagnetic heating assembly, respectively.

10. The liquid energy heating and constant temperature device according to claim 9, characterized in that: A baffle is fixed inside the box, dividing the box into two cavities. The control device is located in the cavity on one side of the baffle, while the water tank, water pump, and electromagnetic heating assembly are located in the cavity on the other side of the baffle.