Hydrogen energy heat pump for improving heat exchange efficiency

Abstract

The utility model relates to the technical field of hydrogen energy heat pump, proposes a kind of hydrogen energy heat pump of improving heat exchange efficiency, including rack, hydrogen-oxygen gas generator and heat exchange mechanism are fixed on the rack, the heat exchange mechanism includes several heat exchange box, the heat exchange box bottom has burner, the heat exchange box top is connected with cover through a communicating pipe, the cover is connected with the air pipe, the cover inside rotatably connected with the rotation block matched with its inner wall, the rotation block is connected with the power source that it rotates, the rotation block has gap, the communicating pipe and air pipe are angle fixed, and the angle of both is less than the angle of gap. The utility model has the beneficial effects that: by using power source to drive multiple rotation blocks to rotate, intermittent opening air pipe, make flue gas stay in heat exchange box temporarily, extend the contact time with heat exchange tube, fully release waste heat before discharging equipment, improve heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of hydrogen heat pumps, specifically to a hydrogen heat pump with improved heat exchange efficiency. Background Technology

[0002] Hydrogen heat pumps, as a highly efficient and clean energy utilization device, are widely used in industrial and residential heating due to the high calorific value and clean products of hydrogen-oxygen combustion. Their core principle is the complete combustion of hydrogen and oxygen gas in a burner to release heat, which is then transferred to the medium being heated via a heat exchange mechanism, achieving efficient energy conversion. Existing equipment often employs a continuous exhaust mode, where the flue gas produced by combustion is directly and continuously discharged through an exhaust pipe. This results in a short and high-speed flow path for the flue gas within the heat exchange chamber, leading to a short contact time between the high-temperature flue gas and the heat exchange tubes. Consequently, a large amount of heat is not fully absorbed before being discharged with the flue gas, resulting in low heat exchange efficiency. Utility Model Content

[0003] This invention proposes a hydrogen heat pump to improve heat exchange efficiency. By using a power source to drive multiple rotating blocks to rotate and intermittently opening the gas outlet pipe, the flue gas can stay briefly in the heat exchange box, prolonging the contact time with the heat exchange tubes, fully releasing the waste heat before being discharged from the equipment, thereby improving heat exchange efficiency.

[0004] Therefore, the technical solution adopted is as follows:

[0005] A hydrogen-powered heat pump with improved heat exchange efficiency includes a frame on which a hydrogen-oxygen gas generator and a heat exchange mechanism are fixed. The heat exchange mechanism includes several heat exchange chambers, each with a burner at its bottom. A cover is connected to the top of each heat exchange chamber via a connecting pipe. The cover is connected to an outlet pipe. A rotating block, fitted to the inner wall of the cover, is rotatably connected inside the cover. A power source is connected to the rotating block to drive its rotation. The rotating block has a notch. The connecting pipe and the outlet pipe are at a fixed angle, which is smaller than the angle of the notch. An inlet pipe is connected to the hydrogen-oxygen gas generator and is connected to several burners. Heat exchange tubes are located inside the heat exchange chambers, with an inlet pipe and a drain pipe connected to both ends of each tube.

[0006] A further technical solution is that a uniform distribution plate is fixed at the bottom of the burner, and the air inlet pipe is fixedly connected to the uniform distribution plate.

[0007] A further technical solution is that the heat exchange tube comprises multiple arrays of serpentine tubes connected end to end.

[0008] A further technical solution is that the water inlet pipe includes a main water inlet pipe and multiple water inlet branch pipes connected thereto, each water inlet branch pipe being connected to a heat exchange pipe.

[0009] A further technical solution is that the drain pipe includes a main drain pipe and multiple branch drain pipes connected thereto, each branch drain pipe being connected to a heat exchange pipe.

[0010] A further technical solution is that a rotating block in several shrouds is connected in series with a rotating shaft and fixed to the rotating shaft. The rotating shaft is fixed to the outer wall of the heat exchange box by a support block and is rotatably connected to each shroud.

[0011] A further technical solution is that the power source includes a motor and a driven gear, the driven gear is fixedly sleeved on the rotating shaft, and the output end of the motor is keyed to a driving gear that meshes with the driven gear.

[0012] The working principle and beneficial effects of this application are as follows:

[0013] The flue gas generated by combustion is discharged to the outside through the exhaust pipe. Multiple rotating blocks are driven by a power source to rotate. When the notch on one side of the rotating block is connected to the exhaust pipe and the connecting pipe at the same time, the flue gas in the heat exchange box can be discharged to the outside. When the notch is not aligned, the solid part of the rotating block blocks the inlet of the two pipes. As the rotating block continues to rotate, the exhaust channel is opened intermittently, allowing the flue gas to stay in the heat exchange box for a short time, prolonging the contact time with the heat exchange tubes, fully releasing the residual heat before being discharged from the equipment, and improving the heat exchange efficiency. Attached Figure Description

[0014] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of this application;

[0016] Figure 2 This is a schematic diagram of the overall structure from another perspective of this application;

[0017] Figure 3 This is a schematic diagram of the heat exchange mechanism described in this application;

[0018] Figure 4 This is a schematic diagram of the internal structure of the heat exchange box described in this application;

[0019] Figure 5 This is a schematic diagram of the structure of the cover described in this application;

[0020] Figure 6 This is a schematic diagram of the power source described in this application.

[0021] In the diagram: 1. Frame; 2. Hydrogen-oxygen gas generator; 3. Heat exchange mechanism; 31. Heat exchange box; 32. Burner; 33. Distribution plate; 34. Heat exchange tube; 35. Cover; 36. Gas outlet pipe; 37. Connecting pipe; 38. Rotating block; 39. Rotating shaft; 310. Driven gear; 311. Support block; 312. Motor; 313. Drive gear; 4. Water inlet pipe; 5. Gas inlet pipe; 6. Drain pipe. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. 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 of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0023] like Figures 1-6 As shown, a hydrogen heat pump with improved heat exchange efficiency includes a frame 1, on which a hydrogen-oxygen gas generator 2 and a heat exchange mechanism 3 are fixed. The heat exchange mechanism 3 includes several heat exchange chambers 31. Each heat exchange chamber 31 has a burner 32 at its bottom. The top of each heat exchange chamber 31 is connected to a cover 35 via a connecting pipe 37. The cover 35 is connected to an outlet pipe 36. A rotating block 38 is rotatably connected inside the cover 35 and fits against its inner wall. A power source is connected to the rotating block 38 to drive its rotation. The rotating block 38 has a notch. The connecting pipe 37 and the outlet pipe 36 are fixed at an angle, and the angle between them is smaller than the angle of the notch. The hydrogen-oxygen gas generator 2 is connected to an inlet pipe 5, which is connected to several burners 32. The heat exchange chambers 31 have heat exchange tubes 34 inside, and both ends of the heat exchange tubes 34 are connected to a water inlet pipe 4 and a drain pipe 6, respectively.

[0024] In this embodiment, the frame 1 is an integral load-bearing structure used to fix and install all components such as the hydrogen-oxygen gas generator 2 and the heat exchange box 31, ensuring the overall stability of the equipment. The hydrogen-oxygen gas generator 2 is used to generate a hydrogen-oxygen mixture to provide a combustion medium for the burner 32. The burner 32 receives the hydrogen-oxygen mixture and releases high-temperature heat through the combustion reaction, providing a heat source for heat exchange. Water enters the heat exchange tubes 34 in multiple heat exchange boxes 31 from the water inlet pipe 4. The high-temperature flue gas flows upward in the heat exchange box 31 and comes into full contact with the heat exchange tubes 34. The heat is transferred to the cold water in the tube through the tube wall, and the cold water is heated into hot water. The water after heat exchange is discharged to the outside through the drain pipe 6.

[0025] The flue gas generated by combustion is discharged to the outside through the exhaust pipe. Multiple rotating blocks 38 are driven to rotate by a power source. When the notch on one side of the rotating block 38 is connected to the exhaust pipe 36 and the connecting pipe 37 at the same time, the flue gas in the heat exchange box 31 can be discharged to the outside. When the notch is not aligned, the solid part of the rotating block 38 blocks the inlet of the two pipes. As the rotating block 38 continues to rotate, the exhaust channel is opened intermittently, allowing the flue gas to stay in the heat exchange box 31 for a short time, prolonging the contact time with the heat exchange tube 34, fully releasing the residual heat before being discharged from the equipment, and improving the heat exchange efficiency.

[0026] like Figure 2 As shown, a uniform distribution plate 33 is installed at the bottom of the burner 32, and the air inlet pipe 5 is fixedly connected to the bottom of the uniform distribution plate 33. The uniform distribution plate 33 distributes the hydrogen-oxygen mixed gas transported by the air inlet pipe 5 evenly to the surface of the burner 32, avoiding local gas accumulation that could lead to uneven combustion.

[0027] like Figure 4 As shown, the heat exchange tube 34 includes multiple sets of pipes, which are arranged vertically at equal intervals and are fixedly connected end to end. The pipes are arranged in a serpentine shape. The serpentine structure can significantly increase the contact area between the pipes and the high-temperature flue gas, and the vertical arrangement ensures that the flue gas exchanges heat fully with the pipes during its ascent.

[0028] like Figures 1-2 As shown, the drain pipe 6 includes a main inlet pipe and multiple inlet branch pipes. Each branch pipe is connected to the main inlet pipe and fixedly connected to a number of heat exchange tubes 34. The drain pipe 6 also includes a main drain pipe and multiple drain branch pipes. Each branch pipe is connected to the main drain pipe and fixedly connected to the other end of each heat exchange tube 34. During transmission, the main inlet pipe receives external cold water and connects to the inlet of each heat exchange tube 34 in each heat exchange chamber 31 via multiple branch pipes, distributing the cold water evenly within each heat exchange tube 34 to ensure stable water intake for each heat exchange unit. The multiple drain branch pipes connect to the outlet of each heat exchange tube 34 in each heat exchange chamber 31, collecting the heated hot water from the heat exchange tubes 34 into the main drain pipe for external discharge.

[0029] like Figures 5-6 As shown, several rotating blocks 38 in the enclosures 35 are connected in series by a rotating shaft 39 and fixed to the shaft 39. The rotating shaft 39 is fixed to the outer wall of the heat exchange box 31 by a support block 311 and is rotatably connected to each enclosure 35. The power source includes a motor 312 and a driven gear 310. The driven gear 310 is fixedly sleeved on the rotating shaft 39. The output end of the motor 312 is keyed to a driving gear 313 that meshes with the driven gear 310. The motor 312 drives the driving gear 313 to rotate, which in turn drives the driven gear 310 to rotate, thereby driving all the rotating blocks 38 to rotate synchronously through the rotating shaft 39, achieving the purpose of intermittent exhaust.

[0030] During operation, the hydrogen-oxygen gas generator 2 produces a hydrogen-oxygen mixture, which is transported through the inlet pipe 5 to the distribution plate 33 at the bottom of the burner 32. The distribution plate 33 evenly distributes the gas onto the surface of the burner 32. After ignition, the burner 32 undergoes complete combustion, releasing high-temperature flue gas. The cold water to be heated is distributed to each branch pipe through the main inlet pipe 4 and enters the serpentine heat exchange tube 34 in the corresponding heat exchange box 31. The high-temperature flue gas flows upward in the heat exchange box 31 and comes into full contact with the serpentine heat exchange tube 34. Heat is transferred through the tube wall. The heat exchanger transfers the cold water inside the pipe to hot water. The heated water inside the heat exchanger tube 34 flows into the main drain pipe through the branch pipe of the drain pipe 6 and is eventually transported to the outside. Meanwhile, the flue gas after heat exchange rises to the hood 35, the motor 312 starts, and drives the driven gear 310 to rotate through the drive gear 313. The rotating shaft 39 rotates accordingly and drives all rotating blocks 38 to rotate synchronously. The rotating blocks 38 intermittently open the exhaust passage, allowing the flue gas to stay in the hood for a short time, prolonging the contact time with the heat exchanger tube, and finally the flue gas is discharged.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hydrogen heat pump with improved heat exchange efficiency, comprising a frame (1), characterized in that, A hydrogen-oxygen gas generator (2) and a heat exchange mechanism (3) are fixed on the frame (1). The heat exchange mechanism (3) includes several heat exchange boxes (31). The bottom of each heat exchange box (31) has a burner (32). The top of each heat exchange box (31) is connected to a cover (35) through a connecting pipe (37). The cover (35) is connected to an outlet pipe (36). A rotating block (38) that fits and matches the inner wall of the cover (35) is rotatably connected inside the cover (35). 8) is connected to a power source that drives its rotation. The rotating block (38) has a notch. The connecting pipe (37) and the gas outlet pipe (36) are fixed at an angle, and the angle between them is smaller than the angle of the notch. The hydrogen-oxygen gas generator (2) is connected to an air inlet pipe (5). The air inlet pipe (5) is connected to several burners (32). The heat exchange box (31) has a heat exchange tube (34) inside. The two ends of the heat exchange tube (34) are connected to a water inlet pipe (4) and a drain pipe (6) respectively.

2. A hydrogen heat pump with improved heat exchange efficiency according to claim 1, characterized in that, The burner (32) has a uniform distribution plate (33) fixed at the bottom, and the air inlet pipe (5) is fixedly connected to the uniform distribution plate (33).

3. A hydrogen heat pump with improved heat exchange efficiency according to claim 1, characterized in that, The heat exchange tube (34) includes multiple sets of arrayed, serpentine tubes connected end to end.

4. A hydrogen heat pump with improved heat exchange efficiency according to claim 1, characterized in that, The water inlet pipe (4) includes a main water inlet pipe and multiple water inlet branch pipes connected thereto, each water inlet branch pipe being connected to a heat exchange pipe (34).

5. A hydrogen heat pump with improved heat exchange efficiency according to claim 1, characterized in that, The drain pipe (6) includes a main drain pipe and multiple branch drain pipes connected thereto, each branch drain pipe being connected to a heat exchange pipe (34).

6. A hydrogen heat pump with improved heat exchange efficiency according to claim 1, characterized in that, A rotating block (38) in several enclosures (35) is connected in series through a rotating shaft (39) and fixed to the rotating shaft (39). The rotating shaft (39) is fixed to the outer wall of the heat exchange box (31) by a support block (311) and is rotatably connected to each enclosure (35).

7. A hydrogen heat pump with improved heat exchange efficiency according to claim 6, characterized in that, The power source includes a motor (312) and a driven gear (310). The driven gear (310) is fixedly mounted on the rotating shaft (39). The output end of the motor (312) is keyed to a driving gear (313) that meshes with the driven gear (310).

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