Heat supply unit waste heat recovery equipment

Abstract

The utility model relates to waste heat recovery equipment for a heat supply unit, which belongs to the technical field of heat supply units and comprises a base and a heat supply unit body fixedly connected to the top of the base, and one side of the heat supply unit body is provided with a flue gas waste heat recovery mechanism for recovering waste heat of the heat supply unit body. The waste heat recovery mechanism comprises a flue gas heat exchanger arranged on the top of the heat supply unit body. According to the waste heat recovery equipment for the heat supply unit, heat exchange treatment can be conducted on smoke exhausted by the heat supply unit body through the smoke heat exchanger, heat in the smoke is separated, then the heat conveying pipe and the heat conduction pipeline are arranged, the separated heat enters the heat conduction pipeline, and the water storage tank is arranged, so that the heat exchange efficiency is improved. And heat in the heat conduction pipeline can heat water in the water storage tank, so that the waste heat recycling effect is achieved, the situation that a large amount of heat is lost is avoided, and the waste heat recycling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating units, in particular to waste heat recovery equipment for heating units. Background Art

[0002] A heating unit is a device that converts energy into heat and transfers it to users through a specific method to provide heating and other functions. Heating units primarily provide heating and can be categorized into various types, depending on the energy source and operating principle, including coal-fired heating units, oil-fired heating units, natural gas-fired heating units, and heat pump heating units. Heat pump heating units, with their energy-saving and environmentally friendly features, have garnered widespread attention and application in the market in recent years.

[0003] During the use of the heating unit, waste heat recovery equipment is required. The Chinese utility model patent with the announcement number CN214009576U discloses a waste heat recovery condensing heating unit, which includes a condensing heating unit body, two symmetrical sides of the shell of the condensing heating unit body are fixed with two base plates by screws, and the top of the base plates is provided with two adjustment mechanisms. The two adjustment mechanisms are distributed on both sides of the condensing heating unit body, and the adjustment mechanisms include two symmetrically arranged support rods, which are fixed to the top of the base plates by screws. The sides of the two support rods are provided with corresponding long strip holes, and a fixing rod is provided between the two support rods. The utility model provides a water delivery pipe and a water supply mechanism. The water supply mechanism circulates the aqueous solution into the interior of the water delivery pipe, so that the aqueous solution absorbs the heat emitted by the condensing heating unit during the flow in the water delivery pipe, which is used to heat the aqueous solution, avoiding heat waste and improving the efficiency of heat recovery.

[0004] However, during the use of this utility model, since the water delivery pipe and the metal flap are exposed to the outside world, most of the heat in the water delivery pipe and the metal flap will be dissipated into the air at the same time, which will lead to heat loss, and it is impossible to achieve a good waste heat recovery effect and meet production needs. Therefore, a waste heat recovery device for a heating unit is proposed to solve the above problems. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a waste heat recovery device for a heating unit, which has the advantage of good waste heat recovery effect. It solves the problem that since the water delivery pipes and metal flaps are exposed to the outside world, most of the heat in the water delivery pipes and metal flaps will be dissipated into the air at the same time, which will lead to heat loss, and it is impossible to achieve a good waste heat recovery effect and cannot meet production needs.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a waste heat recovery device for a heating unit, comprising a base and a heating unit body fixedly connected to the top of the base, wherein a flue gas waste heat recovery mechanism for recovering waste heat from the heating unit body is provided on one side of the heating unit body;

[0007] The waste heat recovery mechanism includes a flue gas heat exchanger arranged on the top of the heating unit body, the bottom of the flue gas heat exchanger is fixedly connected to an air intake pipe connected to the heating unit body, the top of the base is fixedly connected to a waste heat recovery box, the interior of the waste heat recovery box is fixedly connected to a water storage tank extending to its upper surface, a heat conduction pipe is fixedly connected between the interior of the waste heat recovery box and the water storage tank, and a heat transfer pipe is fixedly connected between the flue gas heat exchanger and the heat conduction pipe.

[0008] Furthermore, a dust screen is fixedly connected to the interior of the air intake duct, and an exhaust duct is fixedly connected to a side of the flue gas heat exchanger away from the air intake duct.

[0009] Furthermore, a drainage pipe extending to the outside of the waste heat recovery tank is fixedly connected to the side of the water storage tank away from the heating unit, and a solenoid valve is fixedly installed on the outside of the heat transfer pipe.

[0010] Furthermore, a water level sensor is fixedly mounted on the inner wall of the water tank, and a water inlet pipe communicating with the interior of the water tank is fixedly connected to the top of the water tank.

[0011] Furthermore, a support frame is fixedly connected to a side of the top of the base away from the waste heat recovery box, and a steam condensation tank is fixedly connected to the interior of the support frame.

[0012] Furthermore, a steam delivery pipe is fixedly connected between the top of the steam condensation tank and the heating unit body, and a water outlet pipe communicating with the interior of the steam condensation tank is fixedly connected to the bottom of the steam condensation tank.

[0013] Furthermore, the interior of the steam condensation tank is slidably connected to a filter plate extending to the front thereof, the number of the filter plates is two, and the filter holes of the two filter plates have different diameters.

[0014] Furthermore, sliders extending into the interior of the steam condensation tank are fixedly connected to the left and right sides of the filter plate, and a sliding groove adapted to the sliders is provided on the inner wall of the steam condensation tank.

[0015] Compared with the existing technology, the present invention provides a waste heat recovery device for a heating unit, which has the following beneficial effects:

[0016] 1. The waste heat recovery equipment of the heating unit can perform heat exchange treatment on the flue gas discharged by the heating unit body by setting a flue gas heat exchanger, separate the heat in the flue gas, and then make the separated heat enter the heat conduction pipe by setting a heat transmission pipe and a heat conduction pipe. By setting a water storage tank, the heat in the heat conduction pipe can heat the water inside the water storage tank, thereby achieving the effect of waste heat recovery, avoiding the loss of a large amount of heat, and improving the waste heat recovery effect.

[0017] 2. The waste heat recovery equipment of the heating unit is equipped with a steam delivery pipe and a steam condenser, so that the steam discharged from the heating unit body can enter the steam condenser, and the steam condenses into small water droplets. A part of the heat will remain in the small water droplets, and then the small water droplets are collected through the water outlet pipe, thereby achieving the effect of waste heat recovery. It solves the problem that since the delivery water pipe and the metal flap are exposed to the outside world, most of the heat in the delivery water pipe and the metal flap will dissipate into the air at the same time, which will lead to heat loss, and it is impossible to achieve a good waste heat recovery effect and cannot meet production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0019] Figure 2 This is a structural stereogram of the flue gas heat exchanger of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the steam condenser of the utility model;

[0021] Figure 4 This is a three-dimensional diagram of the structure of the utility model.

[0022] In the figure: 1 base, 2 heating unit body, 3 flue gas heat exchanger, 4 air inlet pipe, 5 waste heat recovery box, 6 water storage tank, 7 heat conduction pipe, 8 heat transmission pipe, 9 dust removal net, 10 exhaust pipe, 11 drain pipe, 12 support frame, 13 steam condensation tank, 14 steam transmission pipe, 15 water outlet pipe, 16 filter plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1:

[0025] See also Figures 1 to 4 In this embodiment, a waste heat recovery device for a heating unit includes a base 1 and a heating unit body 2 fixedly connected to the top of the base 1. A flue gas waste heat recovery mechanism for recovering waste heat is provided on one side of the heating unit body 2. The waste heat recovery mechanism includes a flue gas heat exchanger 3 provided on the top of the heating unit body 2. The bottom of the flue gas heat exchanger 3 is fixedly connected to an air intake pipe 4 connected to the heating unit body 2. A waste heat recovery box 5 is fixedly connected to the top of the base 1. A water storage tank 6 extending to its upper surface is fixedly connected to the interior of the waste heat recovery box 5. A heat conduction pipe 7 is fixedly connected between the interior of the waste heat recovery box 5 and the water storage tank 6. A heat transfer pipe 8 is fixedly connected between the flue gas heat exchanger 3 and the heat conduction pipe 7.

[0026] Among them, a dustproof net 9 is fixedly connected to the inside of the air intake pipe 4, an exhaust pipe 10 is fixedly connected to the side of the flue gas heat exchanger 3 away from the air intake pipe 4, a drain pipe 11 extending to the outside of the waste heat recovery box 5 is fixedly connected to the side of the water tank 6 away from the heating unit 2, and a solenoid valve is fixedly installed on the outside of the heat transfer pipe 8.

[0027] It should be noted that a water level sensor is fixedly installed on the inner wall of the water tank 6, a water inlet pipe connected to the interior of the water tank 6 is fixedly connected to the top of the water tank 6, and a control panel is fixedly installed on the front of the waste heat recovery tank 5, which can monitor the water level and temperature inside the water tank 6 in real time.

[0028] Example 2:

[0029] See also Figures 1 to 3 On the basis of embodiment 1, it includes a support frame 12 fixedly connected to the top of the base 1 away from the side of the waste heat recovery box 5, a steam condenser 13 is fixedly connected to the inside of the support frame 12, a steam delivery pipe 14 is fixedly connected between the top of the steam condenser 13 and the heating unit body 2, a water outlet pipe 15 connected to the inside of the steam condenser 13 is fixedly connected, and a filter plate 16 extending to the front of the steam condenser 13 is slidably connected to the inside of the steam condenser 13. There are two filter plates 16, and the filter pore diameters of the two filter plates 16 are different.

[0030] In this embodiment, the left and right sides of the filter plate 16 are fixedly connected with sliders extending into the interior of the steam condenser 13. A slide groove adapted to the slider is provided on the inner wall of the steam condenser 13. The diameter of the filter hole of the top filter plate 16 is larger than the diameter of the filter hole of the bottom filter plate 16. A valve is fixedly installed on the outside of the water outlet pipe 15.

[0031] By adopting the above technical solution, by setting up a steam delivery pipe 14 and a steam condenser 13, the steam discharged from the heating unit body 2 can enter the steam condenser 13, so that the steam condenses into small water droplets. A part of the heat will remain in the small water droplets, and the small water droplets will be collected through the water outlet pipe 15, thereby achieving the effect of waste heat recovery and recovering part of the water resources at the same time.

[0032] The working principle of the above embodiment is:

[0033] First, when the heating unit body 2 is working, a large amount of flue gas will be generated. At this time, the flue gas will pass through the flue gas heat exchanger 3 to separate the heat therein, and the treated flue gas can be discharged. The separated heat enters the heat conduction pipe 7 through the heat transfer pipe 8. At this time, the heat inside the heat conduction pipe 7 will heat the water inside the water tank 6. At the same time, the steam generated by the heating unit body 2 during operation will enter the steam condensation tank 13, pass through two filter plates 16 to filter the steam, and then condense into water droplets for collection.

[0034] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for a heating unit, comprising a base (1) and a heating unit body (2) fixedly connected to the top of the base (1), characterized in that: A flue gas waste heat recovery mechanism for recovering waste heat from the heat supply unit body (2) is provided on one side of the heat supply unit body (2); The waste heat recovery mechanism includes a flue gas heat exchanger (3) arranged on the top of the heating unit body (2); the bottom of the flue gas heat exchanger (3) is fixedly connected to an air intake pipe (4) connected to the heating unit body (2); the top of the base (1) is fixedly connected to a waste heat recovery box (5); the interior of the waste heat recovery box (5) is fixedly connected to a water storage tank (6) extending to its upper surface; a heat conduction pipe (7) is fixedly connected between the interior of the waste heat recovery box (5) and the water storage tank (6); and a heat transfer pipe (8) is fixedly connected between the flue gas heat exchanger (3) and the heat conduction pipe (7).

2. The waste heat recovery device for a heating unit according to claim 1, characterized in that: A dust screen (9) is fixedly connected to the interior of the air intake pipe (4), and an exhaust pipe (10) is fixedly connected to the side of the flue gas heat exchanger (3) away from the air intake pipe (4).

3. The waste heat recovery device for a heating unit according to claim 1, characterized in that: A drainage pipe (11) extending to the outside of the waste heat recovery tank (5) is fixedly connected to the side of the water storage tank (6) away from the heating unit body (2), and a solenoid valve is fixedly installed on the outside of the heat transfer pipe (8).

4. The waste heat recovery device for a heating unit according to claim 1, characterized in that: A water level sensor is fixedly mounted on the inner wall of the water storage tank (6), and a water inlet pipe communicating with the interior of the water storage tank (6) is fixedly connected to the top of the water storage tank (6).

5. The waste heat recovery device for a heating unit according to claim 1, characterized in that: A support frame (12) is fixedly connected to the top of the base (1) at a side away from the waste heat recovery box (5), and a steam condensation tank (13) is fixedly connected to the interior of the support frame (12).

6. The waste heat recovery device for a heating unit according to claim 5, characterized in that: A steam delivery pipe (14) is fixedly connected between the top of the steam condensation tank (13) and the heating unit body (2), and a water outlet pipe (15) communicating with the interior of the steam condensation tank (13) is fixedly connected to the bottom of the steam condensation tank (13).

7. The waste heat recovery device for a heating unit according to claim 5, characterized in that: The steam condensation tank (13) is internally slidably connected to a filter plate (16) extending to the front thereof. There are two filter plates (16), and the filter holes of the two filter plates (16) have different diameters.

8. The waste heat recovery device for a heating unit according to claim 7, characterized in that: Sliders extending into the interior of the steam condensation tank (13) are fixedly connected to the left and right sides of the filter plate (16), and a sliding groove adapted to the sliders is provided on the inner wall of the steam condensation tank (13).

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