Waste heat recovery device of tubular steam generator

Abstract

The utility model discloses a waste heat recovery device of a through-flow type steam generator. The waste heat recovery device comprises a through-flow type steam generator body, a recovery box, a smoke exhaust pipe, a filtering structure and a heat exchange structure. One side of the top of the through-flow type steam generator body is fixedly connected with a smoke exhaust pipe, the recycling box is arranged on one side of the through-flow type steam generator body, the filtering structure is arranged on one side in the recycling box, and the heat exchange structure is arranged on the other side in the recycling box. Compared with the prior art, the through-flow type steam generator has the advantages that filtered smoke can be used for preheating water to be input into the through-flow type steam generator body, so that the added water has a relatively high temperature, the energy consumption of the through-flow type steam generator body for heating the water is reduced, and the through-flow type steam generator is more energy-saving and environment-friendly, and is more energy-saving and environment-friendly. And meanwhile, the time for generating steam through water heating is saved, and the steam generation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam generators, in particular to a waste heat recovery device for a cross-flow steam generator. Background Art

[0002] A tubular steam generator is a commonly used steam-generating device, primarily used to produce high-temperature, high-pressure steam. Its operating principle is to heat water to its boiling point, converting it into steam. The steam is then continuously output through pipes for use in a variety of industrial and commercial applications.

[0003] Patent document with announcement number CN220750099U discloses a cross-flow fuel gas steam generator, including a fuel gas steam generator body, the fuel gas steam generator body is connected to a first exhaust pipe, the first exhaust pipe is connected to an operating block, the operating block is connected to a second exhaust pipe, the operating block is connected to a filter, the operating block is connected to a striking mechanism, the striking mechanism includes a horizontal plate, the horizontal plate is connected to a traction rod, the traction rod is connected to a striking block, the traction rod is connected to a push plate, and the traction rod is connected to a telescopic spring. The above-mentioned cross-flow fuel gas steam generator solves the problem that the existing flue gas contains a large amount of dust particles and water vapor through the cooperation of the striking block and the push plate, and when the flue gas is filtered through the filter, dust particles and water vapor are easily attached to the filter, and the filter holes on the filter are easily fouled, which clogs the filter holes on the filter. However, the existing technology still has defects:

[0004] (1) The existing technology does not have the function of waste heat recovery. The flue gas generated by the cross-flow steam generator is directly discharged into the external environment after filtering, and the heat contained in the flue gas cannot be well utilized, resulting in energy waste.

[0005] (2) The conventional cross-flow steam generator cannot preheat water before supplying it to the steam generating chamber. Since the water supply line supplies unheated cold water, the steam generation efficiency of the cross-flow steam generator is reduced. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide a waste heat recovery device for a cross-flow steam generator.

[0007] In order to solve the above technical problems, the present invention provides a technical solution: a waste heat recovery device for a cross-flow steam generator, comprising:

[0008] A cross-flow steam generator body, wherein a smoke exhaust pipe is fixedly connected to one side of the top of the cross-flow steam generator body;

[0009] A recovery box, the recovery box being arranged on one side of the cross-flow steam generator body, a filter chamber being provided at the top of the recovery box near the cross-flow steam generator body, a heat exchange chamber being provided at the side of the recovery box away from the cross-flow steam generator body, a pressure gauge being provided at the top of the heat exchange chamber, a water storage chamber being provided at the bottom of the recovery box near the cross-flow steam generator body, and an inner wall of the water storage chamber being provided with insulation material;

[0010] The filter structure is arranged on one side of the interior of the recovery box, and the filter structure includes a rectangular through hole 1 opened on the top of the filter chamber, and there are two rectangular through holes 1; a card slot block corresponding to the rectangular through hole 1 is fixedly connected to the bottom of the inner wall of the filter chamber; a filter screen plate and an activated carbon adsorption layer are inserted into the rectangular through hole 1; the filter screen plate and the bottom of the activated carbon adsorption layer are snap-connected to the card slot block; rubber sealing rings are provided around the filter screen plate and the activated carbon adsorption layer; handles are fixedly connected to the top of the filter screen plate and the activated carbon adsorption layer; an air duct is fixedly connected to the top of the filter chamber close to the heat exchange chamber; one end of the air duct extends into the bottom of the heat exchange chamber; a sealed box door is hinged at the front end of the filter chamber;

[0011] A heat exchange structure is provided on the other side of the recovery box, and the heat exchange structure includes a water inlet pipe fixedly connected to one side of the top of the heat exchange chamber. A spiral heat exchange tube is provided inside the heat exchange chamber, and one end of the top of the spiral heat exchange tube is connected to the water inlet pipe. One end of the bottom of the spiral heat exchange tube is fixedly connected to a water guide pipe, and the water guide pipe is connected to the inside of the water storage chamber.

[0012] Furthermore, one end of the smoke exhaust pipe is fixedly connected to one side of the top of the filter chamber close to the cross-flow steam generator body.

[0013] Furthermore, an exhaust pipe is fixedly connected to the top of the heat exchange chamber.

[0014] Furthermore, a water pipe is fixedly connected between the cross-flow steam generator body and the bottom of the water storage chamber.

[0015] Furthermore, a transparent observation window is provided at the front end of the water storage chamber.

[0016] The advantages of this utility model compared with the prior art are:

[0017] (1) In the present invention, the high-temperature flue gas generated by the cross-flow steam generator body is discharged into the filter chamber through the exhaust pipe, and the impurities in the flue gas are filtered by the filter screen and the activated carbon adsorption layer to prevent the substances in the flue gas from polluting the environment. The filtered flue gas enters the bottom of the heat exchange chamber through the air guide pipe, and then exchanges heat with the water inside the spiral heat exchange tube, thereby increasing the temperature of the water inside the spiral heat exchange tube. The heated water can enter the water storage chamber through the water guide pipe. The spiral arrangement of the spiral heat exchange tube increases the contact area with the high-temperature flue gas inside the heat exchange chamber, thereby improving the flue gas waste heat recovery effect;

[0018] (2) In the present invention, water is introduced through the water inlet pipe, and after heat exchange in the heat exchange chamber, the water itself has a relatively high temperature and is transported to the inside of the water storage chamber through the water pipe. When the cross-flow steam generator body needs to add water, the preheated water can be directly extracted through the water pipe, thereby achieving the effect of waste heat recovery, reducing the energy consumption of the cross-flow steam generator body when heating water, being more energy-saving and environmentally friendly, and at the same time saving the time required for heating water to generate steam, thereby improving the efficiency of steam generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This utility model is a three-dimensional waste heat recovery device for a cross-flow steam generator. Figure 1 .

[0020] Figure 2 This utility model is a three-dimensional waste heat recovery device for a cross-flow steam generator. Figure 2 .

[0021] Figure 3 This is a front view of a waste heat recovery device for a cross-flow steam generator according to the present invention.

[0022] Figure 4 The utility model is a cross-sectional view of a box body of a waste heat recovery device for a cross-flow steam generator.

[0023] Markings in the figure: 1. Cross-flow steam generator body; 2. Recovery box; 21. Filter chamber; 22. Heat exchange chamber; 23. Water storage chamber; 3. Smoke exhaust pipe; 4. Filter structure; 41. Rectangular through hole 1; 42. Slot block; 43. Filter screen; 44. Activated carbon adsorption layer; 45. Handle; 46. Air guide pipe; 47. Sealed box door; 5. Heat exchange structure; 51. Water inlet pipe; 52. Spiral heat exchange tube; 53. Water guide pipe; 6. Exhaust pipe; 7. Water supply pipe; 8. Transparent observation window. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 4 As shown, this embodiment proposes a waste heat recovery device for a cross-flow steam generator, comprising a cross-flow steam generator body 1, a recovery box 2 is provided on one side of the cross-flow steam generator body 1, a filter chamber 21 is provided at the top of the recovery box 2 near the cross-flow steam generator body 1, a heat exchange chamber 22 is provided on the side of the recovery box 2 away from the cross-flow steam generator body 1, a water storage chamber 23 is provided at the bottom of the recovery box 2 near the side of the cross-flow steam generator body 1, and an inner wall of the water storage chamber 23 is provided with a thermal insulation material, a smoke exhaust pipe 3 is fixedly connected to one side of the top of the cross-flow steam generator body 1, and one end of the smoke exhaust pipe 3 is fixedly connected to the side of the top of the filter chamber 21 near the cross-flow steam generator body 1. When in use, the smoke exhaust pipe 3 discharges the high-temperature flue gas generated by the cross-flow steam generator body 1 into the filter chamber 21.

[0027] A filter structure 4 is provided on one side of the interior of the recycling box 2. The filter structure 4 includes a rectangular through hole 41 opened at the top of the filter chamber 21. There are two rectangular through holes 41. The bottom of the inner wall of the filter chamber 21 is fixedly connected to a card slot block 42 corresponding to the rectangular through hole 41. A filter screen plate 43 and an activated carbon adsorption layer 44 are inserted into the rectangular through hole 41. The filter screen plate 43 and the bottom of the activated carbon adsorption layer 44 are snap-fitted and connected to the card slot block 42. Rubber sealing rings are provided around the filter screen plate 43 and the activated carbon adsorption layer 44. The tops of the filter screen plate 43 and the activated carbon adsorption layer 44 are fixedly connected to handles 4. 5. An air duct 46 is fixedly connected to the top of the filter chamber 21 near the heat exchange chamber 22. One end of the air duct 46 extends into the bottom of the heat exchange chamber 22. A sealed door 47 is hinged at the front end of the filter chamber 21. The filter screen 43 and the activated carbon adsorption layer 44 are used to filter impurities in the flue gas to prevent the substances in the flue gas from polluting the environment. The filtered flue gas enters the bottom of the heat exchange chamber 22 through the air duct 46. The inside of the filter chamber 21 can be cleaned by opening the sealed door 47. The filter screen 43 and the activated carbon adsorption layer 44 can be easily removed for cleaning or replacement through the handle 45.

[0028] A heat exchange structure 5 is provided on the other side of the recovery box 2. The heat exchange structure 5 includes a water inlet pipe 51 fixedly connected to one side of the top of the heat exchange chamber 22. A spiral heat exchange tube 52 is provided inside the heat exchange chamber 22. One end of the top of the spiral heat exchange tube 52 is connected to the water inlet pipe 51, and one end of the bottom of the spiral heat exchange tube 52 is fixedly connected to a water guide pipe 53. The water guide pipe 53 is connected to the inside of the water storage chamber 23. A water supply pipe 7 is fixedly connected between the cross-flow steam generator body 1 and the bottom of the water storage chamber 23. A transparent observation window 8 is provided at the front end of the water storage chamber 23. The spiral arrangement of the spiral heat exchange tube 52 increases the contact area with the high-temperature flue gas inside the heat exchange chamber 22, thereby improving the waste heat recovery effect of the flue gas. After heat exchange in the heat exchange chamber 22, the water in the spiral heat exchange tube 52 has a relatively high temperature and is transported to the inside of the water storage chamber 23 through the water guide pipe 53. When the cross-flow steam generator body 1 needs to add water, the preheated water can be directly extracted through the water supply pipe 7, thereby achieving the effect of waste heat recovery.

[0029] An exhaust pipe 6 is fixedly connected to the top of the heat exchange chamber 22, wherein the exhaust pipe 6 is provided with a valve, and a pressure gauge is provided on the top of the heat exchange chamber 22, so as to facilitate observation of the pressure value inside the heat exchange chamber 22 and timely opening of the valve for discharge.

[0030] During the specific implementation of the present invention, the high-temperature flue gas generated by the cross-flow steam generator body 1 is discharged into the filter chamber 21 through the exhaust pipe 3, and then the filter screen 43 and the activated carbon adsorption layer 44 filter the impurities in the flue gas to prevent the substances in the flue gas from polluting the environment. The filtered flue gas enters the bottom of the heat exchange chamber 22 through the air guide pipe 46, and at the same time, the water inlet pipe 51 is connected to the external water source to feed water, and then the water inside the spiral heat exchange tube 52 exchanges heat with the high-temperature flue gas in the heat exchange chamber 22, thereby increasing the water temperature inside the spiral heat exchange tube 52, and the heated water can enter the water storage chamber 23 through the water guide pipe 53. When the cross-flow steam generator body 1 needs to add water, the preheated water can be directly extracted through the water supply pipe 7, so as to achieve the effect of waste heat recovery, reduce the energy consumption of the cross-flow steam generator body 1 when heating water, be more energy-saving and environmentally friendly, and at the same time save the time required for heating water to generate steam, thereby improving the efficiency of steam generation.

[0031] 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 cross-flow steam generator, characterized in that: include: A cross-flow steam generator body (1), wherein a smoke exhaust pipe (3) is fixedly connected to one side of the top of the cross-flow steam generator body (1); A recovery box (2), the recovery box (2) being arranged on one side of the cross-flow steam generator body (1), a filter chamber (21) being provided at the top of the recovery box (2) on the side close to the cross-flow steam generator body (1), a heat exchange chamber (22) being provided at the side of the recovery box (2) away from the cross-flow steam generator body (1), a pressure gauge being provided at the top of the heat exchange chamber (22), a water storage chamber (23) being provided at the bottom of the recovery box (2) on the side close to the cross-flow steam generator body (1), and an inner wall of the water storage chamber (23) being provided with a heat insulation material; The filter structure (4) is provided on one side of the interior of the recovery box (2), and the filter structure (4) includes a rectangular through hole (41) opened on the top of the filter cavity (21), and there are two rectangular through holes (41). The bottom of the inner wall of the filter cavity (21) is fixedly connected with a card slot block (42) corresponding to the rectangular through hole (41), and a filter screen plate (43) and an activated carbon adsorption layer (44) are inserted in the rectangular through hole (41). The filter screen plate (43) and the activated carbon adsorption layer (44) are connected to each other. The bottom of the attachment layer (44) is snap-fitted and connected to the card slot block (42); rubber sealing rings are provided around the filter screen plate 43 and the activated carbon adsorption layer 44; handles (45) are fixedly connected to the top of the filter screen plate (43) and the activated carbon adsorption layer (44); an air guide pipe (46) is fixedly connected to the top of the filter chamber (21) on the side close to the heat exchange chamber (22); one end of the air guide pipe (46) extends into the bottom of the heat exchange chamber (22); and a sealed box door (47) is hinged at the front end of the filter chamber (21); A heat exchange structure (5) is provided on the other side of the recovery box (2), the heat exchange structure (5) comprises a water inlet pipe (51) fixedly connected to one side of the top of the heat exchange chamber (22), a spiral heat exchange pipe (52) is provided inside the heat exchange chamber (22), one end of the top of the spiral heat exchange pipe (52) is connected to the water inlet pipe (51), and one end of the bottom of the spiral heat exchange pipe (52) is fixedly connected to a water guide pipe (53), and the water guide pipe (53) is connected to the inside of the water storage chamber (23).

2. The waste heat recovery device for a cross-flow steam generator according to claim 1, characterized in that: One end of the smoke exhaust pipe (3) is fixedly connected to the top of the filter chamber (21) and is close to one side of the cross-flow steam generator body (1).

3. The waste heat recovery device for a cross-flow steam generator according to claim 1, characterized in that: An exhaust pipe (6) is fixedly connected to the top of the heat exchange chamber (22).

4. The waste heat recovery device for a cross-flow steam generator according to claim 1, characterized in that: A water delivery pipe (7) is fixedly connected between the cross-flow steam generator body (1) and the bottom of the water storage chamber (23).

5. The waste heat recovery device for a cross-flow steam generator according to claim 1, characterized in that: A transparent observation window (8) is provided at the front end of the water storage chamber (23).

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