Electric heating thermal insulation system

Abstract

The utility model belongs to the technical field of heating and heat preservation, and discloses an electric heating and heat preservation system which comprises a box body, a plurality of longitudinal partition plates are arranged in the box body, the longitudinal partition plates are fixedly installed in the box body, so that a plurality of partition spaces are formed in the box body, and each partition space comprises a heating cavity, a circulating cavity and a heat preservation cavity which are sequentially arranged from left to right; a control module and a display module are arranged on the outer side wall of the box body; the control module comprises a main controller and a plurality of control buttons electrically connected with the main controller; a power supply module and a heat pump circulating device are mounted in the heating cavity, and the heat pump circulating device communicates with the circulating cavity through a connecting pipeline; a fan is arranged in the circulating cavity; a plurality of temperature sensors are mounted in the heating cavity, the circulating cavity and the heat preservation cavity; the fan, the display module, the heat pump circulating device, the power supply module and the temperature sensors are all electrically connected with the main controller. According to the technical scheme of the utility model, accurate temperature control can be realized. Meanwhile, the characteristics of high efficiency and energy conservation are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating and heat preservation, in particular to an electric heating and heat preservation system. Background Art

[0002] With the rapid development of modern technology and the improvement of people's living standards, the demand for temperature control is becoming more and more precise and diversified. As an efficient, safe and environmentally friendly temperature control solution, the electric heating and insulation system has received widespread attention and application.

[0003] In traditional thermal insulation systems, there are problems such as inaccurate temperature control, low energy efficiency, and slow system response. Especially in places where precise temperature control is required, such as laboratories, hospitals, and scientific research institutions, the requirements for thermal insulation systems are higher. At the same time, the effective use of energy and energy saving and consumption reduction are also the focus of current social attention. Utility Model Content

[0004] The purpose of the utility model is to provide an electric heating and heat preservation system to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above object, the utility model provides an electric heating and heat preservation system, comprising a box body, the interior of the box body comprises a plurality of longitudinal partitions, the longitudinal partitions are fixedly installed inside the box body, so that a plurality of partition spaces are formed inside the box body, the partition spaces comprise a heating chamber, a circulation chamber and a heat preservation chamber arranged in sequence from left to right; a control module and a display module are arranged on the outer side wall of the box body;

[0006] The control module includes a main controller and several control buttons electrically connected to the main controller; a power supply module and a heat pump circulation device are installed in the heating chamber, and the heat pump circulation device is connected to the circulation chamber through a connecting pipe; a fan is arranged in the circulation chamber; several temperature sensors are installed in the heating chamber, the circulation chamber and the insulation chamber; the fan, the display module, the heat pump circulation device, the power supply module and each of the temperature sensors are electrically connected to the main controller.

[0007] Optionally, the heat pump circulation device includes an evaporator, a regenerator, a compressor, an air cooler, an expander, a booster pump, a flash tank, a motor, a water tank and a steam compressor;

[0008] The heat release side outlet of the air cooler is connected to the inlet of the expander through the subcooling side of the regenerator, the inlet of the evaporator is connected to the outlet of the expander, the outlet of the evaporator is connected to the inlet of the compressor through the superheating side of the regenerator, and the compressor unit is also connected to the heat release side inlet of the air cooler; the compressor and the expander are both connected to motors, and each of the motors is electrically connected to the power supply module; the booster pump is connected to the water inlet of the flash tank through the heat absorption side of the air cooler; the air outlet of the flash tank is connected to the air inlet of the steam compressor; the water outlet of the flash tank and the water outlet of the water tank are both connected to the water inlet of the booster pump, the water inlet of the evaporator is connected to the water outlet of the water tank, and the air outlet of the evaporator is connected to the circulation chamber.

[0009] Optionally, sensors are provided at the water outlet of the flash tank and the gas outlet of the flash tank.

[0010] Optionally, a water level sensor is installed in the water tank.

[0011] Optionally, the control module also includes a communication module electrically connected to the main controller.

[0012] Optionally, the communication module includes one or more of a LoRa module, a 2.5G communication module, a 3G communication module, a 4G communication module, and a 5G communication module.

[0013] Optionally, a plurality of through holes are provided on the partition between the heating chamber and the circulation chamber.

[0014] Optionally, the partition between the circulation chamber and the heat preservation chamber is a grid plate.

[0015] Optionally, one or more of a workpiece clamping mechanism, a workpiece bearing mechanism and a grid mesh are installed in the heat preservation chamber.

[0016] Optionally, a heat insulation layer is adhered to the inner wall of the heat preservation cavity.

[0017] The technical effects of the utility model are:

[0018] The heating and heat preservation device provided by the utility model has precise temperature control. Since a plurality of temperature sensors are arranged in the system and are electrically connected to the main controller, precise control of the temperature in the heating chamber, the circulation chamber and the heat preservation chamber can be achieved. At the same time, it has the characteristics of high efficiency and energy saving. The use of the heat pump circulation device can improve energy utilization efficiency and reduce energy consumption. The main controller of the utility model receives operation instructions through the control button, can quickly adjust the working state of the system, and achieve rapid response to temperature. The setting of the control module and the display module enables the user to conveniently operate the system and understand the working state of the system in real time, and the operation is convenient; the system is not only suitable for laboratories, hospitals, scientific research institutions and other occasions where precise temperature control is required, but also suitable for other occasions where heat preservation is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the external structure of the electric heating and heat preservation system in the embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the internal structure of the electric heating and heat preservation system in the embodiment of the utility model;

[0023] Explanation of reference numerals: 1. Heating chamber; 2. Circulation chamber; 3. Insulation chamber; 4. Display module; 5. Control module; 6. Power supply module; 7. Evaporator; 8. Regenerator; 9. Compressor; 10. Air cooler; 11. Expander; 12. Booster pump; 13. Flash tank; 14. Motor; 15. Water tank; 16. Steam compressor; 17. Fan. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element in the middle; when an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element in the middle at the same time; the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only;

[0027] The words “include,” “including,” “have,” “contain,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] Embodiment 1

[0031] like Figure 1-Figure 2 As shown, in this embodiment, an electric heating and heat preservation system is provided, including a box body, the interior of the box body includes a plurality of longitudinal partitions, the longitudinal partitions are fixedly installed inside the box body, so that a plurality of partition spaces are formed inside the box body, the partition spaces include a heating chamber 1, a circulation chamber 2 and a heat preservation chamber 3 arranged in sequence from left to right; a control module 5 and a display module 4 are provided on the outer side wall of the box body;

[0032] The control module 5 includes a main controller and several control buttons electrically connected to the main controller; a power supply module 6 and a heat pump circulation device are installed in the heating chamber 1, and the heat pump circulation device is connected to the circulation chamber 2 through a connecting pipe; a fan 17 is arranged in the circulation chamber 2; several temperature sensors are installed in the heating chamber 1, the circulation chamber 2 and the insulation chamber 3; the fan 17, the display module 4, the heat pump circulation device, the power supply module 6 and each of the temperature sensors are electrically connected to the main controller.

[0033] The main controller adopts a PLC control system and reserves interfaces for detecting air volume, wind speed, humidity, oxygen concentration, CO2 concentration, and pressure to facilitate future system expansion.

[0034] It is feasible that a plurality of through holes are provided on the partition between the heating chamber 1 and the circulation chamber 2; and a grid plate is used as the partition between the circulation chamber 2 and the heat preservation chamber 3.

[0035] It is feasible that one or more of a workpiece clamping mechanism, a workpiece bearing mechanism and a grid net are installed in the heat preservation chamber 3 ; and a heat insulation layer is pasted on the inner wall of the heat preservation chamber 3 .

[0036] The heating and heat preservation device provided in this embodiment has precise temperature control. Since multiple temperature sensors are provided in the system and are electrically connected to the main controller, precise control of the temperature in the heating chamber 1, the circulation chamber 2 and the heat preservation chamber 3 can be achieved. At the same time, it has the characteristics of high efficiency and energy saving. The use of the heat pump circulation device can improve energy utilization efficiency and reduce energy consumption. The heating and heat preservation device provided in this embodiment is suitable for special working environments such as high temperature and high pressure.

[0037] The main controller of this embodiment receives operation instructions through the control button, can quickly adjust the system working state, and realize rapid response to temperature. The setting of the control module 5 and the display module 4 allows the user to conveniently operate the system and understand the working state of the system in real time, and the operation is convenient; the system is not only suitable for occasions such as laboratories, hospitals, scientific research institutions, etc. that require precise temperature control, but also suitable for other occasions that require heat preservation.

[0038] It can be implemented that the heat pump circulation device includes an evaporator 7, a regenerator 8, a compressor 9, an air cooler 10, an expander 11, a booster pump 12, a flash tank 13, a motor 14, a water tank 15 and a steam compressor 16;

[0039] The heat release side outlet of the air cooler 10 is connected to the inlet of the expander 11 through the subcooling side of the regenerator 8, the inlet of the evaporator 7 is connected to the outlet of the expander 11, the outlet of the evaporator 7 is connected to the inlet of the compressor 9 through the superheating side of the regenerator 8, and the compressor 9 unit is also connected to the heat release side inlet of the air cooler 10; the compressor 9 and the expander 11 are both connected to a motor 14, and each of the motors 14 is electrically connected to the power supply module 6; the booster pump 12 is connected to the water inlet of the flash tank 13 through the heat absorption side of the air cooler 10; the air outlet of the flash tank 13 is connected to the air inlet of the steam compressor 9; the water outlet of the flash tank 13 and the water outlet of the water tank 15 are both connected to the water inlet of the booster pump 12, the water inlet of the evaporator 7 is connected to the water outlet of the water tank 15, and the air outlet of the evaporator 7 is connected to the circulation chamber 2.

[0040] The working process of the heat pump circulation device is as follows: set parameters through the control module 5, start the device, the power supply module 6 supplies power to each device, control the expansion machine 11 and the compressor 9 to start, and the low-pressure and low-temperature working fluid enters the regenerator 8 to heat up to superheated steam, and is compressed by the compressor 9 to become a high-temperature and high-pressure working fluid. The high-temperature and high-pressure working fluid enters the air cooler 10, and the pressurized water in the water tank 15 and the flash tank 13 passes through the air cooler 10, and the working fluid temperature is reduced to become a high-pressure medium-temperature working fluid. The water side inlet temperature of the air cooler 10 is relatively high, so the working fluid temperature leaving the air cooler 10 is relatively high. In order to make full use of the waste heat of the working fluid, a regenerator 8 is set, and the waste heat of the working fluid at the outlet of the air cooler 10 is used to heat the low-temperature working fluid at the outlet of the evaporator 7, thereby improving the system performance. The high-pressure working fluid leaving the air cooler 10 heats the low-temperature working fluid in the regenerator 8, and the temperature is reduced to become a high-pressure and low-temperature working fluid. In order to reduce throttling losses, the expander 11 is used to recover expansion work, and the internal energy of the working fluid is converted into mechanical work output by the expander 11. The temperature and pressure of the working fluid drop, and it becomes a low-temperature and low-pressure two-phase working fluid, enters the evaporator 7 to absorb heat from the low-temperature heat source, evaporates into saturated steam, and returns to the starting point of the cycle.

[0041] In the above circulation process, the pressurized water after the booster pump 12 is heated in the air cooler 10 to become high-temperature pressurized water. The mixed high-temperature pressurized water enters the flash tank 13 for throttling flash evaporation and is divided into two paths: low-pressure saturated water and low-pressure saturated steam. The saturated water enters the circulation chamber 2 and then flows back to the heating chamber 1 body, mixes with the supplementary water source W3 in the loop, and then enters the booster pump 12 for pressure increase and returns to the starting point. After the saturated water enters the circulation chamber 2, it heats the surrounding air and heats the workpiece in the insulation chamber 3 in combination with the fan 17; the saturated steam enters the steam compressor 9 and is compressed, providing a low-temperature water source to eliminate the overheating effect of the compression process and become steam of different temperatures and pressures. In the flash evaporation process, the high-temperature pressurized water is directly throttled and flashed to low pressure, and the throttling loss is large. The multi-stage flash evaporation technology is adopted in the loop, and the throttling flash evaporation is carried out by stepping down the pressure at different pressures to produce multiple saturated water and saturated steam. The saturated water of the previous stage is supplied to the next stage of flash evaporation, which can reduce losses and increase steam production. The multiple streams of saturated steam generated by flash evaporation can be flexibly configured according to industrial needs. When a single steam is needed, it is compressed to the same pressure and combined into one channel to increase the steam supply; when steam of different pressures is needed, the steam is provided separately. After the steam enters the circulation chamber 2, it is blown into the insulation chamber 3 by the fan 17 to heat the workpiece; in the actual operation process, according to the heating requirements of the workpiece, a suitable bearing device can be selected for installation, and hot air heating and steam heating can be flexibly selected;

[0042] It is feasible that temperature sensors are provided at the water outlet of the flash tank 13 and the gas outlet of the flash tank 13 .

[0043] It is feasible that a water level sensor is installed in the water tank 15, and the water level sensor is also electrically connected to the main controller.

[0044] The main controller automatically adjusts the output of the heat pump circulation device according to the set temperature range and the data collected by each temperature sensor to keep the temperature of the insulation object constant;

[0045] Automatic power adjustment: A temperature sensor connected to the main controller is also installed on the outside of the box. As the temperature outside the box changes, the system can automatically adjust the power of the electric heater, reduce operating costs, and avoid frequent start and stop of the heating and insulation system.

[0046] The control buttons include: lock / unlock, power control, temperature setting, upper / lower temperature limit adjustment, mode selection, timing function, display switching, fault indicator light, fan 17 control, etc.

[0047] Display switching includes: displaying real-time temperature: switching to display the current temperature in heating chamber 1, circulation chamber 2 or insulation chamber 3; displaying working status: displaying the current working mode, power output and other information of the system;

[0048] Mode selection includes: normal heating mode: continuous heating to the set temperature and maintaining it; energy-saving mode: reducing energy consumption by optimizing heating strategies; constant temperature mode: keeping the set temperature constant to prevent temperature fluctuations; other specific modes (such as rapid heating, timed heating, etc.): providing different heating strategies according to user needs.

[0049] It is feasible that the control module 5 further comprises a communication module electrically connected to the main controller. The main controller can communicate with a user terminal or a cloud platform through the communication module for transmitting or storing data.

[0050] The communication module includes one or more of a LoRa module, a 2.5G communication module, a 3G communication module, a 4G communication module, and a 5G communication module.

[0051] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An electric heating and heat preservation system, characterized in that: The invention comprises a box body, wherein the interior of the box body comprises a plurality of longitudinal partitions, wherein the longitudinal partitions are fixedly installed inside the box body, so that a plurality of partition spaces are formed inside the box body, wherein the partition spaces comprise a heating chamber (1), a circulation chamber (2) and a heat preservation chamber (3) arranged in sequence from left to right; a control module (5) and a display module (4) are arranged on the outer side wall of the box body; The control module (5) comprises a main controller and a plurality of control buttons electrically connected to the main controller; a power supply module (6) and a heat pump circulation device are installed in the heating chamber (1), and the heat pump circulation device is connected to the circulation chamber (2) through a connecting pipe; a fan (17) is arranged in the circulation chamber (2); a plurality of temperature sensors are installed in the heating chamber (1), the circulation chamber (2) and the heat preservation chamber (3); the fan (17), the display module (4), the heat pump circulation device, the power supply module (6) and each of the temperature sensors are electrically connected to the main controller.

2. An electric heating and heat preservation system according to claim 1, characterized in that: The heat pump circulation device comprises an evaporator (7), a regenerator (8), a compressor (9), an air cooler (10), an expander (11), a booster pump (12), a flash tank (13), a motor (14), a water tank (15) and a steam compressor (16); The heat release side outlet of the air cooler (10) is connected to the inlet of the expander (11) through the subcooling side of the regenerator (8), the inlet of the evaporator (7) is connected to the outlet of the expander (11), the outlet of the evaporator (7) is connected to the inlet of the compressor (9) through the superheating side of the regenerator (8), and the compressor (9) unit is also connected to the heat release side inlet of the air cooler (10); the compressor (9) and the expander (11) are both connected to motors (14), and each of the motors (14) The booster pump (12) is connected to the water inlet of the flash tank (13) through the heat absorption side of the air cooler (10); the air outlet of the flash tank (13) is connected to the air inlet of the compressor (9); the water outlet of the flash tank (13) and the water outlet of the water tank (15) are both connected to the water inlet of the booster pump (12), the water inlet of the evaporator (7) is connected to the water outlet of the water tank (15), and the air outlet of the evaporator (7) is connected to the circulation chamber (2).

3. An electric heating and heat preservation system according to claim 2, characterized in that: Sensors are provided at the water outlet of the flash tank (13) and the gas outlet of the flash tank (13).

4. The electric heating and heat preservation system according to claim 2, characterized in that: A water level sensor is installed in the water tank (15).

5. The electric heating and heat preservation system according to claim 1, characterized in that: The control module (5) also includes a communication module electrically connected to the main controller.

6. The electric heating and heat preservation system according to claim 5, characterized in that: The communication module includes one or more of a LoRa module, a 2.5G communication module, a 3G communication module, a 4G communication module, and a 5G communication module.

7. The electric heating and heat preservation system according to claim 1, characterized in that: A plurality of through holes are provided on the partition between the heating chamber (1) and the circulation chamber (2).

8. The electric heating and heat preservation system according to claim 1, characterized in that: The partition between the circulation chamber (2) and the heat preservation chamber (3) is a grid plate.

9. The electric heating and heat preservation system according to claim 1, characterized in that: One or more of a workpiece clamping mechanism, a workpiece bearing mechanism and a grid net are installed in the heat preservation chamber (3).

10. The electric heating and heat preservation system according to claim 1, characterized in that: A heat insulation layer is pasted on the inner wall of the heat preservation cavity (3).

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