Heating device and heating system
By utilizing heat exchangers and exhaust fans to exchange hot air in the heating device and preheating the air with circulating water, the problem of low inlet air temperature in existing heating devices is solved, achieving energy saving, consumption reduction, and cost savings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-03
AI Technical Summary
In existing heating devices, the air passing through the plates is not preheated, resulting in low inlet air temperature, which leads to a large demand for steam, causing steam waste and high energy loss.
The system uses heating elements in the heat exchanger to exchange energy with the hot air discharged by the exhaust fan. Hot water is used to preheat the flowing air in the heater, and the hot water is returned to the heating elements through the circulation pipeline to achieve the preheating of the air.
The increased air intake temperature saved steam consumption and reduced energy consumption and costs.
Smart Images
Figure CN223965613U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heater technology, and in particular to a heating device and heating system. Background Technology
[0002] Existing air heaters and other heating devices work by using steam to heat the air inside the plates, which in turn heats the air passing through the plates. This structure and heating method result in the air not being preheated, leading to low inlet air temperature, a large amount of steam required, significant steam waste, high energy loss, and high cost. Utility Model Content
[0003] The purpose of this invention is to provide a heating device and heating system to alleviate the problem in the prior art that the air passing through the plates cannot be preheated, the air inlet temperature is low, and the required amount of steam is large.
[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:
[0005] In a first aspect, this utility model provides a heating device, comprising:
[0006] A heat exchanger is provided with heating elements, the heating elements contain water for heat exchange, the heat exchanger has an air inlet at the top and an air outlet at the bottom;
[0007] An exhaust fan, wherein the exhaust fan has an exhaust port that is connected to the air inlet;
[0008] A heater is provided with a heating element for heating flowing air. The heater is connected to the heat exchanger through a circulation pipe. The heater can receive water flowing out of the heat exchanger after heat exchange is completed. The water preheats the flowing air in the heater and then flows back to the heating element through the circulation pipe.
[0009] Furthermore, the heater is connected to an air intake fan, which is used to deliver flowing air to the heater.
[0010] Furthermore, the circulation pipeline is equipped with a circulation pump, which is used to transport the water flowing out of the heat exchanger after heat exchange is completed to the heater.
[0011] Furthermore, both the outlet end of the heat exchanger and the inlet end of the heater are equipped with manual valves for opening or closing the water flow in the circulation pipeline.
[0012] Furthermore, a pressure gauge is installed in the circulation pipeline between the circulation pump and the hand valve at the outlet of the heat exchanger.
[0013] Furthermore, the circulation pipeline is equipped with a safety valve for controlling the water pressure within the circulation pipeline.
[0014] Furthermore, the circulation pipeline is equipped with a water supply valve for replenishing water to the circulation pipeline.
[0015] Furthermore, the circulation pipeline is equipped with a gas collecting bottle for collecting the gas within the circulation pipeline.
[0016] Furthermore, the circulation pipeline is equipped with a drain valve for emptying the water in the circulation pipeline.
[0017] Secondly, this utility model provides a heating system, including the heating device described in the first aspect.
[0018] This utility model brings at least the following beneficial effects:
[0019] This utility model provides a heating device, comprising: a heat exchanger having heating elements inside which water is used for heat exchange; an air inlet at the top and an air outlet at the bottom of the heat exchanger; the heat exchanger is a sealed structure with heating elements inside, and water is used as the heat exchange medium inside the heating elements; and an exhaust fan having an exhaust port connected to the air inlet; hot air discharged from the exhaust fan enters the air inlet at the top of the heat exchanger from the exhaust port, and the hot air heats the water inside the heating elements as it flows through the heat exchanger, finally exiting from the air outlet at the bottom of the heat exchanger. The heater contains a heating element for heating flowing air. The heater is connected to the heat exchanger via a circulation pipe. The heater can receive water flowing out of the heat exchanger after heat exchange is completed. The water preheats the flowing air in the heater and then flows back to the heating element through the circulation pipe. Water from the heat exchanger that has been heated by hot air flows into the heater through the circulation pipe. After entering the heater, the water preheats the flowing air, and the heating element heats the flowing air.
[0020] The heating device recovers the heat energy of the exhaust air and exchanges it with the water in the heat exchanger. After the heat exchange is completed, the hot water flows into the heater, which can be used to preheat the air flowing through the heater, effectively increasing the air inlet temperature, saving steam, reducing energy consumption and costs.
[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the heating device provided in Embodiment 1 of this utility model.
[0024] icon:
[0025] 100-Heat exchanger; 200-Exhaust fan; 300-Heater; 310-Inlet fan; 400-Circulation pipeline; 410-Circulation pump; 420-Manual valve; 430-Pressure gauge; 440-Safety valve; 450-Water supply valve; 460-Gas collection bottle; 470-Pull valve; 480-Exhaust valve. Detailed Implementation
[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.
[0029] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other. Figure 1 This is a schematic diagram of the heating device provided in Embodiment 1 of this utility model.
[0032] Example 1
[0033] Existing air heaters and other heating devices work by using steam to heat the air inside the plates, which in turn heats the air passing through the plates. This structure and heating method result in the air not being preheated, leading to low inlet air temperature, a large amount of steam required, significant steam waste, high energy loss, and high cost.
[0034] In view of this, the present invention provides a heating device, comprising: a heat exchanger 100, wherein the heat exchanger 100 is provided with heating elements, the heating elements contain water for heat exchange, the heat exchanger 100 has an air inlet at the top and an air outlet at the bottom; the heat exchanger 100 is a closed structure with heating elements inside, and water is used as the heat exchange medium inside the heating elements. An exhaust fan 200 is provided, the exhaust fan 200 has an exhaust port connected to the air inlet; hot air discharged from the exhaust fan 200 enters the air inlet at the top of the heat exchanger 100 from the exhaust port, and the hot air heats the water inside the heating elements as it flows through the heat exchanger 100, and finally exits from the air outlet at the bottom of the heat exchanger 100. The heater 300 is equipped with a heating element for heating flowing air. The heater 300 is connected to the heat exchanger 100 through a circulation pipe 400. The heater 300 can receive water flowing out of the heat exchanger 100 after heat exchange is completed. The water preheats the flowing air in the heater 300 and then flows back to the heating element through the circulation pipe 400. The water in the heat exchanger 100 after being heated by hot air flows into the heater 300 through the circulation pipe 400. After entering the heater 300, the water preheats the flowing air, and the heating element heats the flowing air.
[0035] It should be noted that the hot air discharged by the exhaust fan 200 comes from the exhaust gas generated by the working mechanism. The working mechanism here can be any mechanical structure or device used in the industrial production process, or it can be a mechanical system composed of multiple mechanical structures or devices. There are no restrictions here.
[0036] The heating device recovers the heat energy of the exhaust air from the exhaust fan 200 and exchanges energy with the water in the heat exchanger 100. After the heat exchange is completed, the hot water flows into the heater 300, which can be used to preheat the air flowing through the heater 300, effectively increasing the air inlet temperature, saving steam, saving energy and reducing costs.
[0037] In an optional embodiment, the heater 300 is connected to an air intake fan 310, which is used to deliver flowing air to the heater 300.
[0038] Please see Figure 1 The air outlet of the air inlet fan 310 is positioned facing the heater 300. The air inlet fan 310 can provide air delivery force, so that the flowing air can be delivered into the heater 300.
[0039] In an optional embodiment, the circulation pipeline 400 is equipped with a circulation pump 410, which is used to transport the water flowing out of the heat exchanger 100 after heat exchange is completed to the heater 300.
[0040] Please see Figure 1A circulation pump 410 is installed outside the heat exchanger 100 to provide power, ensuring that the hot water after heat exchange can flow into the heater 300. The hot water preheats the flowing air in the heater 300 and then flows back to the heat exchanger 100 through the circulation pipe 400.
[0041] In an optional embodiment, both the outlet end of the heat exchanger 100 and the inlet end of the heater 300 are equipped with a hand valve 420 for opening or closing the water flow in the circulation pipe 400.
[0042] Please see Figure 1 A set of manual valves 420 is installed in the circulation pipe 400 at the outlet of the heat exchanger 100, and a set of manual valves 420 is also installed in the circulation pipe 400 at the inlet of the heater 300. When both the manual valves 420 at the outlet of the heat exchanger 100 and the manual valves 420 at the inlet of the heater 300 are open, water can circulate in the circulation pipes 400; when either the manual valve 420 at the outlet of the heat exchanger 100 or the manual valve 420 at the inlet of the heater 300 is closed, water cannot flow from the heat exchanger 100 into the heater 300, and the water circulation path is cut off.
[0043] In an optional embodiment, a pressure gauge 430 is provided in the circulation pipeline 400 between the circulation pump 410 and the hand valve 420 at the outlet of the heat exchanger 100.
[0044] Please see Figure 1 The pressure gauge 430 can be an electronic pressure gauge 430, which can display the pressure of the circulating water in the circulation pipe 400, making observation intuitive and convenient.
[0045] In an optional embodiment, the circulation pipeline 400 is provided with a safety valve 440 for controlling the water pressure inside the circulation pipeline 400.
[0046] Please see Figure 1 Safety valve 440 is an opening and closing element. It is normally closed under external force. When the water pressure in the circulation pipeline 400 rises above a specified value, it discharges the medium to prevent the pressure in the circulation pipeline 400 from exceeding the specified value. Safety valve 440 is an automatic valve that ensures stable water pressure in the circulation pipeline 400.
[0047] In an optional embodiment, the circulation pipeline 400 is provided with a water supply valve 450 for replenishing water to the circulation pipeline 400.
[0048] Please see Figure 1 The water supply valve 450 is located in the circulation pipeline 400 near the heater 300. The water supply valve 450 can provide circulating water to the circulation pipeline 400 to ensure the normal operation of the heating device.
[0049] In an optional embodiment, the circulation pipeline 400 is provided with a gas collecting bottle 460 for collecting gas within the circulation pipeline 400.
[0050] Please see Figure 1 As water circulates within the circulation pipe 400, gas inevitably flows along with it. The gas collecting bottle 460 can collect the gas within the circulation pipe 400, making the water circulation faster and more efficient.
[0051] In an optional embodiment, the circulation pipeline 400 is provided with a drain valve 470 for draining the water in the circulation pipeline 400.
[0052] Please see Figure 1 The drain valve 470 is connected to the heater 300 and can drain the water in the circulation pipe 400. The circulation pipe 400 is also equipped with an air vent valve 480, which provides an open space after the water inside the circulation pipe 400 is drained.
[0053] The circulation process of the heating device in this embodiment is as follows: the hot air with residual heat discharged from the mechanical structure enters the heat exchanger 100 to heat the circulating water. The heated circulating water enters the heater 300 to preheat the cool air blown in by the blower 310. The heating element heats the air. The heated air then enters the mechanical structure for use, thus forming a complete cycle.
[0054] The working process of the heating device provided in this embodiment is as follows:
[0055] The exhaust gas generated by the mechanical structure is discharged through the exhaust fan 200. The hot air, carrying residual heat, enters the air inlet at the top of the heat exchanger 100 from the exhaust port. As the hot air flows through the heat exchanger 100, it heats the water in the heating elements. Finally, the hot air is discharged from the air outlet at the bottom of the heat exchanger 100. The intake fan 310 delivers flowing air to the heater 300. The water in the heat exchanger 100, after being heated by the hot air, flows into the heater 300 through the circulation pipe 400 under the power of the circulation pump 410. After entering the heater 300, the water preheats the flowing air. The heating elements then heat the flowing air, and the heated air is then used inside the mechanical structure.
[0056] Example 2
[0057] This utility model provides a heating system, including the heating device of Embodiment 1. The heating system has all the structures of the heating device and therefore has all the beneficial effects of Embodiment 1, which will not be repeated here.
[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A heating device, characterized in that, include: A heat exchanger (100) is provided with heating elements, the heating elements contain water for heat exchange, the heat exchanger (100) has an air inlet at the top and an air outlet at the bottom; An exhaust fan (200) has an exhaust port that is connected to the air inlet; A heater (300) is provided with a heating element for heating flowing air. The heater (300) is connected to the heat exchanger (100) through a circulation pipe (400). The heater (300) can receive water flowing out of the heat exchanger (100) after heat exchange is completed. The water preheats the flowing air in the heater (300) and then flows back to the heating element through the circulation pipe (400).
2. The heating device according to claim 1, characterized in that, The heater (300) is connected to an air intake fan (310) for delivering flowing air to the heater (300).
3. The heating device according to claim 1, characterized in that, The circulation pipeline (400) is equipped with a circulation pump (410), which is used to transport the water flowing out of the heat exchanger (100) after heat exchange is completed to the heater (300).
4. The heating device according to claim 3, characterized in that, The outlet end of the heat exchanger (100) and the inlet end of the heater (300) are both equipped with hand valves (420) for opening or closing the water flow in the circulation pipeline (400).
5. The heating device according to claim 4, characterized in that, A pressure gauge (430) is installed in the circulation pipeline (400) between the circulation pump (410) and the hand valve (420) at the outlet of the heat exchanger (100).
6. The heating device according to claim 1, characterized in that, The circulation pipeline (400) is equipped with a safety valve (440) for controlling the water pressure inside the circulation pipeline (400).
7. The heating device according to claim 1, characterized in that, The circulation pipeline (400) is equipped with a water supply valve (450) for replenishing water to the circulation pipeline (400).
8. The heating device according to claim 1, characterized in that, The circulation pipeline (400) is provided with a gas collecting bottle (460) for collecting the gas in the circulation pipeline (400).
9. The heating device according to claim 1, characterized in that, The circulation pipeline (400) is equipped with a drain valve (470) for draining the water in the circulation pipeline (400).
10. A heating system, characterized in that, Includes the heating device as described in any one of claims 1-9.