A heat recovery heating room

Abstract

The utility model discloses a kind of waste heat recovery heating room, belong to heating equipment technical field, including air compressor room, heating room, double helix one-way pipe heat exchanger and double helix two-way pipe heat exchanger;The double helix one-way pipe heat exchanger includes first casing, open spiral pipe, first air inlet end, first exhaust end, and the double helix two-way pipe heat exchanger includes second casing, closed spiral pipe, second air inlet end, second exhaust end, third air inlet end and third exhaust end;The third air inlet end is connected with the air pump, and the second air inlet end and second exhaust end pass through the closed spiral pipe by pipeline, and the closed spiral pipe is filled with paraffin base composite phase change material.The utility model can effectively utilize the waste heat of different temperature generated by air compressor room, avoid resource waste, make the heat of heating room stable, reduce the need of additional heating.

Description

Technical Field

[0001] This utility model belongs to the technical field of heating equipment, and in particular relates to a waste heat recovery heating room. Background Technology

[0002] In the door panel manufacturing industry, heating chambers play a crucial role in the production process as equipment for drying door panel materials. Most existing heating chambers utilize heat pump systems to provide the heat source, which then exchanges heat with the environment through heat exchangers in the air handling unit. Because the heat pump needs to operate continuously to maintain the temperature of the drying chamber, this results in significant energy consumption and increases the operating costs for businesses.

[0003] Existing systems that recover waste heat from air compressors in heated rooms include a drying chamber, an air compressor unit, and a heat exchanger. The hot air discharged from the air compressor provides heat to the heated room through the heat exchanger. By using the waste heat from the air compressor to make up for the heat gap in the heated room, the power consumption of the heat pump is reduced, thus reducing energy waste.

[0004] However, the heat generated by the air compressor varies under different loads. Directly introducing the high-temperature waste heat into the heating chamber will affect the processing, while the low-temperature waste heat generated by the air compressor is difficult to utilize. The existing system is unable to effectively utilize the waste heat of the air compressor at different temperatures.

[0005] Therefore, a waste heat recovery heating room is needed to effectively utilize the waste heat at different temperatures from the air compressor. Utility Model Content

[0006] The purpose of this invention is to provide a waste heat recovery heating room to solve the problems existing in the background technology.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A waste heat recovery heating room includes an air compressor room, a heating room, a double-helix unidirectional tubular heat exchanger and a double-helix bidirectional tubular heat exchanger, wherein the double-helix unidirectional tubular heat exchanger and the double-helix bidirectional tubular heat exchanger are located between the air compressor room and the heating room.

[0009] The double-helix unidirectional tubular heat exchanger includes a first shell, an open spiral tube, a first inlet end, and a first outlet end; the double-helix bidirectional tubular heat exchanger includes a second shell, a closed spiral tube, a second inlet end, a second outlet end, a third inlet end, and a third outlet end.

[0010] The first and second air inlets are connected to the heat dissipation vents of the air compressor room via electromagnetic three-way valves, and the first and third exhaust ends are connected to the heating chamber via electromagnetic three-way valves; the third air inlet is connected to the air pump, and the second air inlet and the second exhaust end pass through the closed spiral tube via pipelines, with the closed spiral tube filled with paraffin-based composite phase change material;

[0011] The open spiral tube includes a first inlet and a first outlet. The first inlet is connected to the third air inlet via a solenoid three-way valve, and the first outlet is connected to the second air inlet.

[0012] Furthermore, the first air intake end is located below one side of the first housing, and the first exhaust end is located above the first housing on the side away from the first air intake end.

[0013] Furthermore, the open spiral tube is fixed inside the first housing, and both the first inlet and the first outlet extend above the first housing.

[0014] Furthermore, the third air intake end is located above one side of the second housing, the third exhaust end is located below the third air intake end on the same side, and the second exhaust end extends out from the top of the second housing.

[0015] Furthermore, the closed spiral tube is fixed inside the second housing, and the closed spiral tube is made of copper-nickel alloy.

[0016] Furthermore, a one-way valve is provided at the first outlet near the second air inlet.

[0017] Furthermore, an electric louvered air vent is provided at the connection between the heating chamber and the first exhaust end, and a fresh air assembly is provided on the top of the heating chamber.

[0018] The beneficial effects of this utility model are:

[0019] The medium- and high-temperature waste heat in the air compressor room can be directly introduced into the heating room for heat supply; the higher-temperature waste heat is cooled before entering the heating room to avoid the heating room temperature from becoming too high; the medium- and low-temperature waste heat in the air compressor room is conducted to the paraffin-based composite phase change material inside the closed spiral tube through the copper-nickel alloy tube wall to complete the thermal energy storage; when additional heating is needed, cold air is introduced into the third exhaust end, flows through the phase change material to absorb heat, and then is discharged into the heating room.

[0020] The heat generated by the high-temperature waste heat after heat exchange in the first shell can be stored in the relative material of the closed spiral tube, which can supplement part of the heat gap when the heat of the subsequent heating chamber is insufficient.

[0021] After the high-temperature waste heat enters the heating chamber from the first exhaust end, the direction and volume of airflow can be adjusted by the electric louvered air vents to prevent the heating chamber from becoming too hot. At the same time, the fresh air component can exhaust and blow air into the heating chamber to maintain the temperature of the heating chamber. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a waste heat recovery heating room according to the present invention;

[0023] In the diagram, 1-heating room, 2-air compressor room, 3-double spiral unidirectional tubular heat exchanger, 31-first inlet end, 32-first exhaust end, 33-first shell, 34-open spiral tube, 35-first inlet, 36-first outlet, 4-double spiral bidirectional tubular heat exchanger, 41-second inlet end, 42-second exhaust end, 43-third inlet end, 44-third exhaust end, 45-second shell, 46-closed spiral tube. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] See Figure 1 This utility model provides a technical solution:

[0026] like Figure 1 As shown, a waste heat recovery heating room includes an air compressor room 2, a heating room 1, a double-helix unidirectional tubular heat exchanger 3 and a double-helix bidirectional tubular heat exchanger 4, wherein the double-helix unidirectional tubular heat exchanger 3 and the double-helix bidirectional tubular heat exchanger 4 are located between the air compressor room 2 and the heating room 1.

[0027] The double-helix unidirectional tube heat exchanger 3 includes a first shell 33, an open spiral tube 34, a first inlet end 31, and a first outlet end 32. The double-helix bidirectional tube heat exchanger 4 includes a second shell 45, a closed spiral tube 46, a second inlet end 41, a second outlet end 42, a third inlet end 43, and a third outlet end 44.

[0028] The first air inlet 31 and the second air inlet 41 are connected to the heat dissipation vent of the air compressor room 2 via electromagnetic three-way valves. The first exhaust end 32 and the third exhaust end 44 are connected to the heating room 1 via electromagnetic three-way valves. The third air inlet 43 is connected to the air pump. The second air inlet 41 and the second exhaust end 42 pass through the closed spiral tube 46 via pipelines. The closed spiral tube 46 is filled with paraffin-based composite phase change material.

[0029] The open spiral tube 34 includes a first inlet 35 and a first outlet 36. The first inlet 35 is connected to the third air inlet 43 via a solenoid three-way valve, and the first outlet 36 is connected to the second air inlet 41.

[0030] Through the above technical solution, a temperature sensor is installed at the heat dissipation vent of the air compressor room 2. When the air compressor room 2 generates medium-to-high temperature waste heat, the electromagnetic three-way valve is opened, allowing medium-to-high temperature air to enter the first housing 33 through the first inlet end 31. Since the first inlet end 31 is located on the lower side of the first housing 33, and the first exhaust end 32 is located on the upper side of the first housing 33 away from the first inlet end 31, the high-temperature air expands in volume after being heated. The low-density high-temperature air generates buoyancy in the surrounding cooler, denser air environment, thus moving upwards, facilitating the upward discharge of the hot air from the first exhaust end into the heating chamber 1. At this time, the waste heat of the air compressor room 2 is just right for the temperature required by the hot air.

[0031] When the air compressor room 2 generates high-temperature waste heat, the solenoid three-way valve is opened, allowing medium-high temperature air to enter the first housing 33 through the first inlet 31. At this time, cold air is introduced into the open spiral tube 34, and the air pump pumps the cold air into the first inlet 35. After circulating through the open spiral tube 34, the cold air is discharged from the first outlet 36 into the second inlet 41. The cold air fully exchanges heat with the high-temperature air in the first housing 33 in the open spiral tube 34, carrying away the heat of the high-temperature waste heat and lowering the temperature as much as possible, so that the heat of the air discharged from the first exhaust end 32 is suitable for heating room 1.

[0032] The hot air after heat exchange in the open spiral tube 34 is discharged into the second air inlet 41 through the first outlet 36, and then exits from the second exhaust end 42 along the pipeline. At this time, the closed spiral tube 46 inside the second shell 45 is wrapped around the pipeline. Since the closed spiral tube 46 is made of copper-nickel alloy and filled with paraffin-based composite phase change material, when the hot air after heat exchange passes through the closed spiral tube 46, it is conducted to the internal phase change material through the copper-nickel alloy tube wall to complete the heat energy storage. At this time, the paraffin-based composite phase change material absorbs heat and undergoes a phase change, changing from solid to liquid, storing latent heat.

[0033] When heat replenishment is needed, the air pump pumps cold air into the third air inlet 43. The cold air enters the second housing 45. At this time, the paraffin-based composite phase change material releases heat and turns back to solid. It absorbs heat through the cold air, and then the heated air is introduced into the heating chamber 1 from the third exhaust end 44 to replenish the heat.

[0034] Through the above technical solution, the medium and high temperature waste heat of the air compressor room 2 can be directly introduced into the heating room 1 for heat supply; the higher temperature waste heat is cooled before entering the heating room 1 to avoid the temperature of the heating room 1 being too high; and the heat generated by the high temperature waste heat after heat exchange can be stored in the relative material of the closed spiral tube 46, which can supplement a part of the heat gap when the heat of the heating room 1 is insufficient.

[0035] Furthermore, the low-temperature waste heat in the air compressor room 2 enters the second housing 45 directly through the second air inlet 41 via the electromagnetic three-way valve, and is conducted to the paraffin-based composite phase change material inside through the copper-nickel alloy tube wall of the closed spiral tube 46 to complete the thermal energy storage; when heat supplementation is required, cold air is introduced through the third exhaust end 44, flows through the phase change material to absorb heat, and then is discharged to the heating room 1.

[0036] Furthermore, the open spiral tube 34 is fixed inside the first housing 33, and the first inlet 35 and the first outlet 36 both extend above the first housing 33.

[0037] Through the above technical solution, the open spiral tube 34 forms a double-loop winding structure, which maximizes the contact area of ​​the open spiral tube 34 in the first housing 33 and greatly improves the cooling and heat exchange effect on the high-temperature air in the first housing 33.

[0038] Furthermore, the third air inlet 43 is located above one side of the second housing 45, the third exhaust end 44 is located below the third air inlet 43 on the same side, and the second exhaust end 42 extends out from the top of the second housing 45.

[0039] With the above technical solution, the cold air in the third intake end 43 can enter from the top and then be discharged from the third exhaust end 44 at the bottom. The downward flow of the cold air can improve the contact with the internal closed spiral tube 46 and improve the heating effect of the cold air.

[0040] Furthermore, a one-way valve is provided at the first outlet 36 near the second air inlet 41.

[0041] Through the above technical solution, by setting a one-way valve, the low-temperature waste heat entering the second air inlet 41 from the air compressor room 2 will not enter the closed spiral tube 46 from the second outlet.

[0042] Furthermore, an electric louvered air vent is provided at the connection between the heating chamber 1 and the first exhaust end 32, and a fresh air assembly is provided on the top of the heating chamber 1.

[0043] Through the above technical solution, after the high-temperature waste heat enters the heating chamber 1 from the first exhaust end 32, the blowing direction and air volume can be adjusted by the electric louvered air outlet to avoid the heating chamber 1 from getting too hot. At the same time, the fresh air component can exhaust and blow air into the heating chamber 1 to maintain the heat temperature of the heating chamber 1.

[0044] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A waste heat recovery heating room, characterized in that: It includes an air compressor room (2), a heating room (1), a double-helix unidirectional tube heat exchanger (3) and a double-helix bidirectional tube heat exchanger (4), wherein the double-helix unidirectional tube heat exchanger (3) and the double-helix bidirectional tube heat exchanger (4) are located between the air compressor room (2) and the heating room (1); The double-helix unidirectional tube heat exchanger (3) includes a first shell (33), an open spiral tube (34), a first air inlet (31), and a first exhaust end (32). The double-helix bidirectional tube heat exchanger (4) includes a second shell (45), a closed spiral tube (46), a second air inlet (41), a second exhaust end (42), a third air inlet (43), and a third exhaust end (44). The first air inlet (31) and the second air inlet (41) are connected to the heat dissipation port of the air compressor room (2) through an electromagnetic three-way valve. The first exhaust end (32) and the third exhaust end (44) are connected to the heating room (1) through an electromagnetic three-way valve. The third air inlet (43) is connected to the air pump. The second air inlet (41) and the second exhaust end (42) pass through the closed spiral tube (46) through a pipeline. The closed spiral tube (46) is filled with paraffin-based composite phase change material. The open spiral tube (34) includes a first inlet (35) and a first outlet (36). The first inlet (35) is connected to the third air inlet (43) through an electromagnetic three-way valve, and the first outlet (36) is connected to the second air inlet (41).

2. The waste heat recovery heating room according to claim 1, characterized in that: The first air intake end (31) is located below one side of the first housing (33), and the first exhaust end (32) is located above the first housing (33) on the side away from the first air intake end (31).

3. The waste heat recovery heating room according to claim 1, characterized in that: The open spiral tube (34) is fixed inside the first housing (33), and the first inlet (35) and the first outlet (36) both extend above the first housing (33).

4. The waste heat recovery heating room according to claim 1, characterized in that: The third air intake end (43) is located above one side of the second housing (45), the third exhaust end (44) is located below the third air intake end (43) on the same side, and the second exhaust end (42) extends out of the top of the second housing (45).

5. The waste heat recovery heating room according to claim 1, characterized in that: The closed spiral tube (46) is fixed inside the second housing (45), and the closed spiral tube (46) is made of copper-nickel alloy.

6. The waste heat recovery heating room according to claim 1, characterized in that: A one-way valve is provided at the first outlet (36) near the second air inlet (41).

7. The waste heat recovery heating room according to claim 1, characterized in that: The heating chamber (1) is provided with an electric louvered air vent at the connection between it and the first exhaust end (32), and a fresh air assembly is provided on the top of the heating chamber (1).

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