Energy-saving heating device

Abstract

The utility model relates to the technical field of heating devices, and discloses an energy-saving heating device which comprises a heating furnace mechanism, a waste heat treatment mechanism is fixedly arranged at the upper end of the heating furnace mechanism, a smoke treatment mechanism is fixedly arranged on one side of the waste heat treatment mechanism through threads, and the heating furnace mechanism comprises a heating furnace body. An efficient plate heat exchanger is fixedly arranged in the heating furnace body, guide plates are fixedly arranged on one side of the inner bottom face and one side of the inner top face of the heating furnace body, and the waste heat treatment mechanism comprises a heat preservation water tank. According to the device, a tube type heat exchanger in the heating furnace is replaced by the efficient plate type heat exchanger, high energy efficiency and low smoke exhaust temperature can be achieved, energy conservation and environmental protection are facilitated, the device is further provided with the waste heat treatment mechanism, after air is heated, residual gas with waste heat enters the waste heat treatment mechanism to be subjected to secondary heat exchange treatment, and the heat exchange efficiency is improved. And the waste heat utilization rate is increased, and resources are saved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of heating devices, in particular to an energy-saving heating device. Background Art

[0002] The blast furnace gas is a by-product generated in the iron-making process. Its main components are CO, CO₂, H₂, and CH₄. In addition to the above components, the blast furnace gas also contains a certain amount of sulfides. The main component of sulfur in the gas is carbonyl sulfide (COS). Among them, the organic sulfur is mainly carbonyl sulfide (COS). The blast furnace gas is not easy to catch fire, has unstable combustion, and low calorific value. Its main uses include pressure recovery power generation, direct fuel combustion, and combustion power generation. In addition, a small part is used for the purification of chemical product raw materials. From the main uses of the blast furnace gas, the blast furnace gas is mostly used as self-used gas in metallurgical enterprises, such as hot blast stoves and coke ovens, and as fuel for combustion power generation.

[0003] Generally, the blast furnace gas is used in combination with a hot blast stove as a heating device to facilitate resource conservation. The blast furnace gas heater is a device used in an iron-making plant to heat fresh combustion-supporting air. It is one of the main supporting devices of the blast furnace. Its function is to continuously provide high-temperature hot air above 1000 degrees Celsius for the blast furnace. The blast furnace gas heater is divided into two types according to the working principle: regenerative and heat-exchange types. The regenerative hot blast stove uses checker bricks or regenerative balls inside. After being heated by gas, it is then back-blown with fresh cold air to turn the cold air into high-temperature hot air. The heat-exchange hot blast stove uses a high-temperature-resistant heat exchanger as the core component and heats the fresh air by burning blast furnace gas.

[0004] The traditional heat-exchange hot blast stove used internally adopts a shell-and-tube heat exchanger. Both the contact area with air and the heat-exchange efficiency are not ideal. Moreover, the traditional small heat-exchange hot blast stove does not have a waste heat treatment mechanism. The excess flue gas after heating the air is directly discharged through the smoke exhaust system, and the waste heat resources cannot be fully utilized.

[0005] Therefore, the technical personnel in this field provide an energy-saving heating device to solve the problems raised in the above background art. Content of the Utility Model

[0006] The purpose of the utility model is to propose an energy-saving heating device to solve the deficiencies existing in the prior art. In this device, the shell-and-tube heat exchanger inside the heating furnace is replaced with a high-efficiency plate heat exchanger, which can achieve high energy efficiency and low flue gas temperature, contribute to energy conservation and environmental protection. Moreover, this device is also provided with a waste heat treatment mechanism. The gas with remaining heat after heating the air enters the waste heat treatment mechanism for secondary heat exchange treatment, improving the waste heat utilization rate and facilitating resource conservation.

[0007] To achieve the above object, the present utility model provides the following technical solutions: An energy-saving heating device, comprising a heating furnace mechanism, with a waste heat treatment mechanism fixedly arranged at the upper end of the heating furnace mechanism, and a flue gas treatment mechanism fixedly arranged on one side of the waste heat treatment mechanism through threads. The heating furnace mechanism includes a heating furnace body, with a high-efficiency plate heat exchanger fixedly arranged inside the heating furnace body, and flow guide plates fixedly arranged at one side of the inner bottom surface and the inner top surface of the heating furnace body;

[0008] The waste heat treatment mechanism includes a heat preservation water tank, with a tubular heat exchanger fixedly arranged inside the heat preservation water tank, a water pump fixedly arranged at one side of the inner bottom surface of the heat preservation water tank, and a transportation pipe fixedly arranged on the other side of the heat preservation water tank. The flue gas treatment mechanism includes an air purifier, with an exhaust pipe threadedly arranged on one side of the air purifier, and a mounting plate fixedly arranged at the lower end of the exhaust pipe through threads.

[0009] Furthermore, an installation box is fixedly arranged on one side of the heating furnace body through threads, and a first blower is fixedly arranged on one side of the installation box.

[0010] Furthermore, a gas inlet is fixedly arranged at one side position of the lower end of the heating furnace body, and a drain outlet is fixedly arranged at the other side position of the lower end of the heating furnace body.

[0011] Furthermore, an air inlet is fixedly arranged at the middle position of one side of the heating furnace body, and an air outlet is fixedly arranged at the middle position of the other side of the heating furnace body.

[0012] Furthermore, a water inlet is fixedly arranged at one side position of the upper end of the heat preservation water tank, and a water outlet is fixedly arranged at one side position of the front end of the heat preservation water tank.

[0013] Furthermore, a second blower is fixedly arranged at the upper end of the exhaust pipe.

[0014] Furthermore, a control panel is fixedly arranged at the other side position of the front end of the heating furnace body.

[0015] The present utility model has the following beneficial effects:

[0016] 1. An energy-saving heating device proposed by the present utility model. In traditional heat exchange hot blast stoves, shell-and-tube heat exchangers are used inside. The contact area with air and the heat exchange efficiency are not ideal. Moreover, in traditional small heat exchange hot blast stoves, there is no residual heat treatment mechanism. The excess flue gas after heating the air is directly discharged through the exhaust system, and the residual heat resources cannot be fully utilized. In this device, the shell-and-tube heat exchanger inside the heating furnace is replaced with a high-efficiency plate heat exchanger, which can achieve high energy efficiency and low exhaust gas temperature, contributing to energy conservation and environmental protection. In addition, this device is also equipped with a residual heat treatment mechanism. The gas with residual heat after heating the air enters the residual heat treatment mechanism for secondary heat exchange treatment, improving the utilization rate of residual heat and facilitating resource conservation.

[0017] 2. An energy-saving heating device proposed by the present utility model. This device is provided with a heating furnace mechanism, which is conducive to cooperating with gas for heat exchange and heating of air. The residual heat treatment mechanism is provided with a heat preservation water tank, and a tubular heat exchanger is arranged inside the heat preservation water tank, which is conducive to heating the water source in the heat preservation water tank with the remaining residual heat after heating the air, facilitating the full utilization of resources. The setting of the flue gas treatment mechanism is conducive to filtering the flue gas and then discharging it, making it convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Isometric schematic diagram of the present utility model;

[0019] Figure 2 Front isometric schematic diagram of the present utility model;

[0020] Figure 3 Bottom isometric schematic diagram of the present utility model;

[0021] Figure 4 Front cross-sectional schematic diagram of the present utility model.

[0022] LEGEND DESCRIPTION:

[0023] 1. Heating furnace mechanism; 2. Residual heat treatment mechanism; 3. Flue gas treatment mechanism; 101. Heating furnace body; 102. Air inlet; 103. Installation box; 104. First fan; 105. Air outlet; 106. Transport pipe; 107. Control panel; 108. Gas inlet; 109. Drainage port; 110. High-efficiency plate heat exchanger; 111. Deflector; 201. Heat preservation water tank; 202. Water inlet; 203. Water outlet; 204. Tubular heat exchanger; 205. Water pump; 301. Air purifier; 302. Installation plate; 303. Exhaust pipe; 304. Second fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Referring to Figures 1-4 , an embodiment provided by the present invention: an energy-saving heating device, including a heating furnace mechanism 1. The heating furnace mechanism 1 includes a heating furnace body 101. Inside the heating furnace body 101, a high-efficiency plate heat exchanger 110 is fixedly arranged. On one side of the inner bottom surface and the inner top surface of the heating furnace body 101, a flow guide plate 111 is fixedly arranged. On the other side of the heat preservation water tank 201, a transport pipe 106 is fixedly arranged. On one side of the heating furnace body 101, an installation box 103 is fixedly arranged by means of threads. On one side of the installation box 103, a first blower 104 is fixedly arranged. On one side of the lower end of the heating furnace body 101, a gas inlet 108 is fixedly arranged. On the other side of the lower end of the heating furnace body 101, a drain port 109 is fixedly arranged. In the middle of one side of the heating furnace body 101, an air inlet 102 is fixedly arranged. In the middle of the other side of the heating furnace body 101, an air outlet 105 is fixedly arranged. On the other side of the front end of the heating furnace body 101, a control panel 107 is fixedly arranged;

[0026] Specifically, the high-efficiency plate heat exchanger 110 is used to transfer the heat generated by combustion to the air to raise the temperature of the air. The flow guide plate 111 is beneficial to the rapid entry of air into the high-efficiency plate heat exchanger 110. The transport pipe 106 is beneficial to the transport of flue gas. The installation box 103 is beneficial to the threaded installation of the first blower 104 and the air inlet 102. The gas inlet 108 is beneficial to the entry of gas and is beneficial to cooperating with the burner to provide heat. The drain port 109 is beneficial to the timely discharge of the moisture generated inside. The air outlet 105 is beneficial to the discharge of the air after heating. The control panel 107 is beneficial to controlling the heating temperature.

[0027] Referring to Figures 2-4 , at the upper end of the heating furnace mechanism 1, a waste heat treatment mechanism 2 is fixedly arranged. The waste heat treatment mechanism 2 includes a heat preservation water tank 201. Inside the heat preservation water tank 201, a tubular heat exchanger 204 is fixedly arranged. On one side of the inner bottom surface of the heat preservation water tank 201, a water pump 205 is fixedly arranged. On one side of the upper end of the heat preservation water tank 201, a water inlet 202 is fixedly arranged. On one side of the front end of the heat preservation water tank 201, a water outlet 203 is fixedly arranged.

[0028] Specifically, the heat preservation water tank 201 is beneficial to the device of the water source and its heat preservation. The tubular heat exchanger 204 is beneficial to making full use of the remaining heat inside the flue gas. The water pump 205 is beneficial to pressurizing the water source inside the water tank and discharging it through the water outlet 203. The water inlet 202 is beneficial to the injection of the water source.

[0029] Refer to Figures 2-3 , on one side of the waste heat treatment mechanism 2, a flue gas treatment mechanism 3 is fixedly arranged through threads. The flue gas treatment mechanism 3 includes an air purifier 301. On one side of the air purifier 301, a smoke exhaust pipe 303 is arranged through threads. At the lower end of the smoke exhaust pipe 303, a mounting plate 302 is fixedly arranged through threads. At the upper end of the smoke exhaust pipe 303, a second blower 304 is fixedly arranged;

[0030] Specifically, the air purifier 301 is installed and fixed by screws, which is beneficial to purifying and filtering the flue gas and making the flue gas meet the emission standards. The smoke exhaust pipe 303 is beneficial to the emission of the flue gas. The mounting plate 302 is beneficial to assisting in fixing the smoke exhaust pipe 303. Start the second blower 304, and the flue gas can be discharged through the smoke exhaust pipe 303 after being filtered by the air purifier 301.

[0031] Working principle: When the device is in use, the air is transported into the heating furnace body 101 through the air inlet 102 by the first blower 104. The blast furnace gas is transported into the burner through the gas inlet 108. The burner is connected to the high-efficiency plate heat exchanger 110. The high-efficiency plate heat exchanger 110 is used to transfer the heat generated by combustion to the air to raise the temperature of the air. The heated air is discharged through the air outlet 105. The remaining flue gas containing heat inside the high-efficiency plate heat exchanger 110 enters the tubular heat exchanger 204 through the transport pipe 106 to further transfer the remaining heat to the water body, realizing the full utilization of resources;

[0032] Secondly, start the second blower 304, and the flue gas can be discharged through the smoke exhaust pipe 303 after being filtered by the air purifier 301.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy-saving heating device, comprising a heating furnace mechanism (1), characterized in that: A waste heat treatment mechanism (2) is fixedly arranged at the upper end of the heating furnace mechanism (1), a smoke treatment mechanism (3) is fixedly arranged on one side of the waste heat treatment mechanism (2) via a thread, the heating furnace mechanism (1) comprises a heating furnace body (101), a high-efficiency plate heat exchanger (110) is fixedly arranged inside the heating furnace body (101), and a guide plate (111) is fixedly arranged on one side of the inner bottom surface and the inner top surface of the heating furnace body (101); The waste heat treatment mechanism (2) comprises an insulated water tank (201), a tubular heat exchanger (204) is fixedly arranged inside the insulated water tank (201), a water pump (205) is fixedly arranged on one side of the inner bottom surface of the insulated water tank (201), and a transport pipe (106) is fixedly arranged on the other side of the insulated water tank (201); the smoke treatment mechanism (3) comprises an air purifier (301), a smoke exhaust pipe (303) is threadedly arranged on one side of the air purifier (301), and a mounting plate (302) is fixedly arranged on the lower end of the smoke exhaust pipe (303) by means of threads.

2. An energy-saving heating device according to claim 1, characterized in that: A mounting box (103) is fixedly provided on one side of the heating furnace body (101) via threads, and a first fan (104) is fixedly provided on one side of the mounting box (103).

3. An energy-saving heating device according to claim 1, characterized in that: A fuel gas feed port (108) is fixedly disposed at one side of the lower end of the heating furnace body (101), and a drain port (109) is fixedly disposed at the other side of the lower end of the heating furnace body (101).

4. An energy-saving heating device according to claim 1, characterized in that: An air inlet (102) is fixedly provided at the middle position of one side of the heating furnace body (101), and an air outlet (105) is fixedly provided at the middle position of the other side of the heating furnace body (101).

5. The energy-saving heating device according to claim 1, characterized in that: A water inlet (202) is fixedly disposed at one side of the upper end of the thermal insulation water tank (201), and a water outlet (203) is fixedly disposed at one side of the front end of the thermal insulation water tank (201).

6. An energy-saving heating device according to claim 1, characterized in that: A second fan (304) is fixedly arranged on the upper end of the smoke exhaust pipe (303).

7. An energy-saving heating device according to claim 1, characterized in that: A control panel (107) is fixedly disposed at the other side of the front end of the heating furnace body (101).

Images