Heat balance unit with anti-freezing protection structure
By introducing an antifreeze protection structure consisting of an insulation layer, heating wire, and electric heating tape into the heat balance unit, the problem of pipeline freezing in low-temperature environments was solved, achieving stable operation and improved efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GREE NEW ENERGY MANAGEMENT (LIAONING) CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-03
AI Technical Summary
When existing heat balance units operate in low-temperature environments, the temperature difference between the inside and outside of the unit causes the pipes to freeze, affecting the equipment's lifespan and operating efficiency.
It adopts an anti-freeze protection structure, including an insulation layer, heating wire, temperature sensor and electric heating tape. By monitoring the temperature in real time and controlling the heating of the heating wire and electric heating tape, the internal temperature of the unit is regulated to prevent the pipes from freezing.
It effectively prevents pipeline freezing, extends equipment life, improves operating efficiency, reduces downtime for maintenance, and enhances the practical value of the unit.
Smart Images

Figure CN224454712U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat balance unit technology, and in particular to a heat balance unit with an antifreeze protection structure. Background Technology
[0002] A heat balance unit is a device or system used to maintain or regulate the thermal balance of a system. By controlling the input, output or exchange of heat, it ensures that the internal temperature of the system is stable or reaches a preset thermodynamic equilibrium state. It is widely used in industries, buildings, energy management and other fields.
[0003] Most current heat balance units have relatively simple protective structures. When operating in low-temperature environments, there is a certain temperature difference between the inside and outside of the unit. External pipes are more prone to freezing, and when the internal temperature of the unit falls below a certain level, it can also damage the equipment, shorten its service life, require shutdown for maintenance, and may also affect the operating efficiency of the unit, affecting its normal operation and increasing operating costs.
[0004] Therefore, considering that existing heat balance units are prone to damage in low-temperature environments, heat balance units with antifreeze protection structures can be designed. By locally heating the units, the internal temperature can be flexibly adjusted according to changes in ambient temperature. At the same time, targeted insulation treatment can be applied to the pipes to ensure the fluidity of the liquid inside, thereby effectively enhancing the practical value of the heat balance unit. Utility Model Content
[0005] In order to overcome the problem that most heat balance units operate in low-temperature environments all year round, there is a certain temperature difference between the inside and outside of the unit, the external pipes are more likely to freeze, and the equipment will be damaged when the internal temperature of the unit is lower than a certain level, thus affecting the normal operation of the unit, this utility model is proposed.
[0006] The technical solution of this utility model is as follows: a heat balance unit with an antifreeze protection structure, including a unit shell, unit components, external pipes, internal pipes, circulation components, insulation layer, inner shell, temperature control plate, heating wire, temperature sensor, heating component, external electric heating tape, internal electric heating tape, and antifreeze component. The unit components are arranged on the outside of the unit shell, the insulation layer is arranged on the inside of the unit shell, the inner shell is arranged on the inside of the insulation layer, the temperature control plate is arranged at the rear end of the inner shell, the heating wire is arranged on the inside of the temperature control plate, the temperature sensor is arranged at the left end of the inner shell, the heating component is arranged at the left end of the outer side of the unit shell, the external pipe is arranged on the outside of the unit shell, the internal pipe is arranged on the inside of the inner shell, the circulation component is arranged on the outside of the internal pipe, the external electric heating tape is wrapped around the outside of the water inlet pipe of the external pipe, the internal electric heating tape is wrapped around the outside of the water inlet pipe of the internal pipe, and an antifreeze component is arranged at one end of the external and internal electric heating tapes.
[0007] Preferably, the unit's outer casing is fixed by setting unit components, and an insulation layer is used to prevent heat loss from the inner casing. The inner casing protects all the unit's structures. A circulation component controls the water flow through the outer and inner pipes to ensure normal operation of the unit. A temperature control board fixes the position of the heating wire, and a temperature sensor monitors the internal ambient temperature of the inner casing in real time. When the ambient temperature is lower than the set value, an antifreeze component controls the heating of the external electric heating tape to raise the temperature at the water inlet pipe of the outer pipe, preventing it from freezing. When the temperature sensor detects an even lower set value, a heating component controls the heating of the heating wire to raise the internal ambient temperature of the inner casing. At the same time, an antifreeze component controls the heating of the internal electric heating tape to raise the temperature at the water inlet pipe of the inner pipe. This allows for flexible adjustment of the unit's internal ambient temperature according to changes in ambient temperature. In addition, targeted insulation treatment is applied to the pipes to ensure the fluidity of the liquid inside the pipes, enhancing the practical value of the heat balance unit.
[0008] Preferably, multiple sets of heating wires are provided, with the outer pipe extending into the inner shell and the inner pipe connected to the outer pipe.
[0009] Preferably, the unit assembly includes support legs and door panels. Support legs are provided at the four corners of the bottom outer side of the unit housing, and two sets of door panels are symmetrically provided at the front end of the unit housing. One side of the door panel is rotatably connected to the unit housing.
[0010] Preferably, the heating component includes a heating motor and a controller, with the heating motor located on the outer side of the temperature control board and the controller located on the outer left side of the unit casing.
[0011] Preferably, the controller is electrically connected to the heating motor and the temperature sensor, and the output terminal of the heating motor is connected to the heating wire.
[0012] Preferably, the circulation component includes a support block and a water pump. Multiple sets of support blocks are provided on the inner side of the inner shell. The other end of the support block is nested and connected to the inner pipeline. A water pump is provided on the outer side of the inner pipeline and is electrically connected to the controller.
[0013] Preferably, the antifreeze component includes an external power supply and an internal power supply. One end of the external electric heating tape is equipped with an external power supply, which is located on the outside of the unit casing. One end of the internal electric heating tape is equipped with an internal power supply, which is located on the inside of the inner casing. The external power supply and the internal power supply are electrically connected to the controller.
[0014] The beneficial effects of this utility model are:
[0015] When using a heat balancing unit, the unit's various structures are protected by the outer casing. An insulation layer prevents heat loss from the inner casing. Water flows through both the outer and inner pipes, ensuring normal operation. A temperature control board fixes the position of the heating wires, and a temperature sensor monitors the internal ambient temperature in real time. When the ambient temperature falls below the set value, the external electric heating tape heats up, raising the temperature at the water inlet pipe and preventing it from freezing. Conversely, when the temperature sensor detects an even lower set value, the heating wires heat up, raising the internal ambient temperature, and the internal electric heating tape heats up, raising the temperature at the water inlet pipe. This addresses the common problem in most heat balancing units operating in consistently low-temperature environments: temperature differences between the internal and external environments, making external pipes prone to freezing and internal temperatures below a certain level damaging the equipment, shortening its lifespan, requiring maintenance shutdowns, and potentially affecting operating efficiency. This enhances the practical value of the heat balancing unit. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the heat balance unit with antifreeze protection structure of this utility model.
[0017] Figure 2 The diagram shown is a three-dimensional cross-sectional view of the outer casing of the heat balance unit with antifreeze protection structure according to this utility model.
[0018] Figure 3 The diagram shown is a three-dimensional structural diagram of the outer shell of the heat balance unit with antifreeze protection structure according to this utility model.
[0019] Figure 4 The diagram shows a three-dimensional structure of the external and internal pipes of the heat balance unit with antifreeze protection structure according to this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Unit outer shell; 101. Support leg; 102. Door panel; 2. Insulation layer; 3. Inner shell; 4. Temperature control board; 5. Heating wire; 501. Heating motor; 6. Temperature sensor; 601. Controller; 7. External pipe; 8. Internal pipe; 801. Support block; 802. Water pump; 9. External electric heating tape; 901. External power supply; 10. Internal electric heating tape; 1001. Internal power supply. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figure 2 and Figure 3This utility model provides an embodiment of a heat balance unit with an antifreeze protection structure, including a unit shell 1, unit components, external pipes 7, internal pipes 8, circulation components, insulation layer 2, inner shell 3, temperature control plate 4, heating wire 5, temperature sensor 6, heating component, external electric heating cable 9, internal electric heating cable 10, and antifreeze component. The unit components are arranged on the outer side of the unit shell 1, and the insulation layer 2 is arranged on the inner side of the unit shell 1. The inner shell 3 is arranged on the inner side of the insulation layer 2, and the temperature control plate 4 is arranged at the rear end of the inner side of the inner shell 3. The heating wire 5 is arranged on the inner side of the temperature control plate 4, and the heating wire 5 has multiple... The unit has a temperature sensor 6 (PT100) installed on the inner left side of the inner shell 3. A heating component is installed on the outer left side of the outer shell 1. An outer pipe 7 is installed on the outer side of the outer shell 1, extending into the inner shell 3. An inner pipe 8 is installed on the inner side of the inner shell 3, connecting to the outer pipe 7. A circulation component is installed on the outer side of the inner pipe 8. An outer electric heating tape 9 is wrapped around the water inlet pipe of the outer pipe 7, and an inner electric heating tape 10 is wrapped around the water inlet pipe of the inner pipe 8. An antifreeze component is installed at one end of the outer electric heating tape 9 and the inner electric heating tape 10.
[0023] Please see Figure 1 and Figure 2 In this embodiment, the unit assembly includes support legs 101 and door panels 102. Support legs 101 are provided at the four corners of the bottom outer side of the unit housing 1. Two sets of door panels 102 are symmetrically provided at the front end of the unit housing 1. One side of the door panel 102 is rotatably connected to the unit housing 1. The support legs 101 support and fix the unit housing 1, ensuring that the unit housing 1 is placed stably. Rotating the door panel 102 flexibly opens the unit housing 1, making it convenient to maintain the internal structure of the unit housing 1.
[0024] The heating component includes a heating motor 501 and a controller 601. The heating motor 501 is located on the outside of the temperature control board 4. The output end of the heating motor 501 is connected to the heating wire 5. The controller 601 is located on the left side of the outer side of the unit casing 1. The controller 601 is electrically connected to the heating motor 501 and the temperature sensor 6. The controller 601 controls the operation of the heating motor 501, and starts the heating motor 501 to supply current to the heating wire 5, thereby flexibly controlling the heating of the heating wire 5.
[0025] Please see Figure 3 and Figure 4 In this embodiment, the circulation component includes a support block 801 and a water pump 802. Multiple sets of support blocks 801 are arranged inside the inner shell 3. The other end of the support block 801 is nested and connected to the inner pipe 8. The water pump 802 is arranged outside the inner pipe 8. The water pump 802 is electrically connected to the controller 601. The inner pipe 8 is supported and fixed by the support block 801. The controller 601 controls the operation of the water pump 802. The water pump 802 is started to control the water flow through the outer pipe 7 and the inner pipe 8 to ensure the normal operation of the unit.
[0026] The antifreeze assembly includes an external power supply 901 and an internal power supply 1001. The external power supply 901 is installed at one end of the external electric heating tape 9 and is located on the outside of the unit casing 1. The internal power supply 1001 is installed at one end of the internal electric heating tape 10 and is located on the inside of the inner casing 3. The external power supply 901 and the internal power supply 1001 are electrically connected to the controller 601. The controller 601 flexibly controls the connection of the external power supply 901 and the internal power supply 1001. The external power supply 901 controls the heating of the external electric heating tape 9, and the internal power supply 1001 controls the heating of the internal electric heating tape 10.
[0027] Before using the unit, the unit housing 1 is supported and fixed by the outriggers 101. The unit housing 1 is placed in the designated position, and the door panel 102 is rotated to open and close the unit housing 1 flexibly, making it convenient to carry out inspection and maintenance of the unit.
[0028] When using the unit, the water pump 802 is controlled by the controller 601 to start the water pump 802, and the water is controlled to flow through the external pipe 7 and the internal pipe 8 fixed by the support block 801 to control the normal operation of the unit.
[0029] Meanwhile, the temperature sensor 6 monitors the internal ambient temperature of the inner shell 3 in real time. When the temperature is above the set value, the insulation layer 2 is used to insulate the unit. When the temperature is below the first set value, the controller 601 connects the external power supply 901 and uses the external power supply 901 to control the external electric heating tape 9 to heat up, thereby raising the temperature of the water inlet pipe of the external pipe 7.
[0030] Subsequently, when the temperature is lower than the second set value, the controller 601 controls the heating motor 501 to run, and the heating motor 501 controls the heating wire 5 in the temperature control board 4 to heat up, thereby raising the internal ambient temperature of the unit casing 1. At the same time, the internal power supply 1001 is turned on to control the internal electric heating tape 10 to heat up, thereby raising the temperature of the water inlet pipe of the internal pipeline 8. The second set value is lower than the first set value.
[0031] Through the above steps, the unit's outer casing 1 is fixed by setting the unit components, the insulation layer 2 prevents heat loss from the inner casing 3, and the inner casing 3 protects the various structures of the unit. The circulation component controls the water flow through the outer pipe 7 and the inner pipe 8 to ensure the normal operation of the unit. The heating wire 5 is fixed by the temperature control board 4, and the temperature sensor 6 monitors the internal ambient temperature of the inner casing 3 in real time. When the ambient temperature is lower than the set value, the antifreeze component controls the heating of the outer electric heating tape 9 to raise the temperature at the water inlet of the outer pipe 7, preventing the outer water inlet from freezing. When the temperature sensor 6 detects an even lower set value, the heating component controls the heating of the heating wire 5 to raise the internal ambient temperature of the inner casing 3. At the same time, the antifreeze component controls the heating of the inner electric heating tape 10 to raise the temperature at the water inlet of the inner pipe 8. Thus, the internal ambient temperature of the unit is flexibly adjusted according to changes in ambient temperature. At the same time, targeted insulation treatment is applied to the pipes to ensure the fluidity of the liquid inside the pipes.
[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A heat balance unit with anti-freezing protection structure, comprising a unit shell (1), a unit component, an outer pipeline (7), an inner pipeline (8), and a circulating component, characterized in that: It also includes an insulation layer (2), an inner shell (3), a temperature control plate (4), a heating wire (5), a temperature sensor (6), a heating component, an external electric heating cable (9), an internal electric heating cable (10), and an antifreeze component. The unit components are installed on the outside of the unit shell (1). An insulation layer (2) is installed on the inside of the unit shell (1). An inner shell (3) is installed on the inside of the insulation layer (2). A temperature control plate (4) is installed on the rear end of the inner shell (3). A heating wire (5) is installed on the inside of the temperature control plate (4). A temperature sensor (6) is provided on the inner left side of the unit. A heating component is provided on the outer left side of the unit casing (1). An outer pipe (7) is provided on the outer side of the unit casing (1). An inner pipe (8) is provided on the inner side of the inner shell (3). A circulation component is provided on the outer side of the inner pipe (8). An outer electric heating tape (9) is wrapped around the water inlet pipe of the outer pipe (7). An inner electric heating tape (10) is wrapped around the water inlet pipe of the inner pipe (8). An antifreeze component is provided at one end of the outer electric heating tape (9) and the inner electric heating tape (10).
2. The heat balance unit with antifreeze protection structure according to claim 1, characterized in that: Multiple sets of heating wires (5) are provided, and the outer pipe (7) runs through the inner shell (3). The inner pipe (8) is connected to the outer pipe (7).
3. The heat balance unit with antifreeze protection structure according to claim 1, characterized in that: The unit components include support legs (101) and door panels (102). Support legs (101) are provided at the four corners of the bottom outer side of the unit housing (1). Two sets of door panels (102) are symmetrically provided at the front end of the unit housing (1). One side of the door panel (102) is rotatably connected to the unit housing (1).
4. The heat balance unit with antifreeze protection structure according to claim 1, characterized in that: The heating component includes a heating motor (501) and a controller (601). The heating motor (501) is located on the outside of the temperature control board (4), and the controller (601) is located on the left side of the outer side of the unit casing (1).
5. The heat balance unit with antifreeze protection structure according to claim 4, characterized in that: The controller (601) is electrically connected to the heating motor (501) and the temperature sensor (6), and the output end of the heating motor (501) is connected to the heating wire (5).
6. The heat balance unit with antifreeze protection structure according to claim 4, characterized in that: The circulation component includes a support block (801) and a water pump (802). Multiple sets of support blocks (801) are provided on the inner side of the inner shell (3). The other end of the support block (801) is nested and connected to the inner pipeline (8). A water pump (802) is provided on the outer side of the inner pipeline (8). The water pump (802) is electrically connected to the controller (601).
7. The heat balance unit with antifreeze protection structure according to claim 4, characterized in that: The antifreeze assembly includes an external power supply (901) and an internal power supply (1001). One end of the external electric heating tape (9) is provided with an external power supply (901), which is located on the outside of the unit casing (1). One end of the internal electric heating tape (10) is provided with an internal power supply (1001), which is located on the inside of the inner casing (3). The external power supply (901) and the internal power supply (1001) are electrically connected to the controller (601).