Heat energy recovery device for medical molecular sieve oxygen generation equipment

Abstract

The utility model relates to the technical field of oxygen generation equipment, in particular to a medical molecular sieve oxygen generation equipment heat energy recovery device which comprises a bottom plate. An adsorption tank is arranged at the upper end of the bottom plate, an oxygen tank is arranged on the right side of the adsorption tank, a heat exchange tank is arranged on the rear side of the adsorption tank, and a supporting plate is fixedly arranged at the top of the bottom plate; through the arrangement of the adsorption tank, the heat exchange tank, the circulating pump, the first connecting pipe, the first spiral heat exchange pipe, the second connecting pipe, the second spiral heat exchange pipe and the third connecting pipe, the circulating pump is started, and liquid in the first spiral heat exchange pipe and the second spiral heat exchange pipe can circulate through the circulating pump; heat of compressed gas in the adsorption tank can be exchanged into liquid in the heat exchange tank through the first spiral heat exchange pipe and the second spiral heat exchange pipe, and the liquid in the heat exchange tank can be continuously heated, so that heat can be continuously provided for an external heating system through the liquid inlet pipe and the liquid outlet pipe, the utilization rate of the heat is increased, and the energy consumption is reduced. And waste of heat energy is avoided.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generation equipment technology, and in particular to a heat recovery device for medical molecular sieve oxygen generation equipment. Background Art

[0002] Medical molecular sieve oxygen generators mainly utilize the pressure swing adsorption (PSA) principle. During operation, air is injected into a sealed container containing a double molecular sieve, causing the pressure inside the container to rise. As the ambient pressure increases, the molecular sieve adsorbs a large amount of nitrogen gas from the air, while the oxygen gas remains in gaseous form and is collected through certain pipes. This process is usually called the adsorption process. When the molecular sieve in the container adsorbs nitrogen to a certain extent, the container is vented and the pressure is reduced. As the ambient pressure decreases, the molecular sieve's ability to adsorb nitrogen decreases, and the nitrogen gas is released from the molecular sieve as waste gas. This process is usually called the desorption process.

[0003] Currently available medical molecular sieve oxygen generators cannot recover and utilize the heat generated when the compressor compresses air. During the desorption process, the heat in the exhaust gas is directly released, resulting in a waste of thermal energy.

[0004] Therefore, existing medical molecular sieve oxygen generators cannot recover and utilize the heat generated during air compression. During desorption, the heat in the exhaust gas is directly released, resulting in energy waste. A heat recovery device for medical molecular sieve oxygen generators can be designed. This device consists of an adsorption tank, a heat exchange tank, a circulation pump, connecting pipe one, spiral heat exchange tube one, connecting pipe two, spiral heat exchange tube two, and connecting pipe three. Activating the circulation pump allows the liquid inside spiral heat exchange tube one and spiral heat exchange tube two to circulate. The heat from the compressed gas inside the adsorption tank is transferred to the liquid inside the heat exchange tank through spiral heat exchange tubes one and two. The liquid inside the heat exchange tank is continuously heated, and this heat is then continuously supplied to the external heating system through the inlet and outlet pipes, improving heat utilization and preventing energy waste. Utility Model Content

[0005] To overcome the problem that existing medical molecular sieve oxygen generators cannot recover and utilize the heat generated when the compressor compresses air, and that the heat in the exhaust gas is directly released during the desorption process, resulting in a waste of thermal energy.

[0006] The technical solution of this utility model is as follows: a heat recovery device for a medical molecular sieve oxygen generator, comprising a base plate; an adsorption tank is provided at the upper end of the base plate, an oxygen tank is provided on the right side of the adsorption tank, and a heat exchange tank is provided at the rear side of the adsorption tank; a support plate is fixedly provided at the top of the base plate, the support plate is located on the right side of the adsorption tank and the heat exchange tank, a circulation pump is fixedly provided at the top of the support plate, a connecting pipe 1 is fixedly provided at the liquid suction end of the circulation pump, the other end of the connecting pipe 1 passes through the adsorption tank and a spiral heat exchange tube 1 is fixedly provided, the spiral heat exchange tube 1 is located inside the adsorption tank, a connecting pipe 2 is fixedly provided at the other end of the spiral heat exchange tube 1, the other end of the connecting pipe 2 passes through the adsorption tank and the heat exchange tank and a spiral heat exchange tube 2 is fixedly provided, the spiral heat exchange tube 2 is located inside the heat exchange tank, a connecting pipe 3 is fixedly provided at the other end of the spiral heat exchange tube 2, the other end of the connecting pipe 3 passes through the heat exchange tank and is fixedly provided at the liquid outlet end of the circulation pump, an inlet pipe is provided at the upper rear side of the heat exchange tank, and an outlet pipe is provided at the lower rear side of the heat exchange tank.

[0007] Preferably, the inlet pipe and outlet pipe are connected to the external heating system. When the circulation pump is started, the circulation pump can transport the liquid inside the spiral heat exchange tube 1 to the spiral heat exchange tube 2 through connecting pipe 1 and connecting pipe 3. Then, the liquid is transported back to the spiral heat exchange tube 1 through connecting pipe 2, thus forming a circulation. The liquid inside the spiral heat exchange tube 1 can continuously exchange heat with the compressed gas inside the adsorption tank. The heat can then be exchanged to the liquid inside the heat exchange tank through the spiral heat exchange tube 2. The liquid inside the heat exchange tank can thus be continuously heated, thereby continuously providing heat to the external heating system through the inlet pipe and outlet pipe.

[0008] Preferably, a filter box and an air compressor are fixedly installed on the top left side of the base plate, with the air compressor located on the right side of the filter box.

[0009] Preferably, the air compressor has an intake pipe fixedly installed at the intake end, the other end of which is opened at the outlet of the filter box, the filter box has an intake pipe at the inlet, and the air compressor has an outlet pipe fixedly installed at the outlet end, the other end of which is opened at the bottom of the adsorption tank.

[0010] Preferably, molecular sieve one and molecular sieve two are fixedly installed at the top of the adsorption tank, with molecular sieve two located inside molecular sieve one and molecular sieve one located inside spiral heat exchange tube one.

[0011] Preferably, the top of the adsorption tank is provided with a connecting pipe, the other end of which is located inside the top of the oxygen tank, and a one-way valve is installed inside the connecting pipe.

[0012] Preferably, an exhaust pipe is provided at the lower right side of the oxygen cylinder, and a solenoid valve is installed inside the exhaust pipe.

[0013] Preferably, the bottom of the adsorption tank, oxygen tank, and heat exchange tank are all fixedly equipped with four support legs, and the other end of the support legs is fixedly installed on the top of the base plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting up an adsorption tank, a heat exchange tank, a circulation pump, connecting pipe one, spiral heat exchange tube one, connecting pipe two, spiral heat exchange tube two, and connecting pipe three, and starting the circulation pump, the liquid inside spiral heat exchange tube one can be transported to spiral heat exchange tube two through connecting pipe one and connecting pipe three. Then, the liquid is transported back to spiral heat exchange tube one through connecting pipe two, thus forming a circulation. The liquid inside spiral heat exchange tube one can continuously exchange heat with the compressed gas inside the adsorption tank. The heat can then be exchanged to the liquid inside the heat exchange tank through spiral heat exchange tube two. The liquid inside the heat exchange tank can thus be continuously heated, thereby continuously providing heat to the external heating system through the liquid inlet and liquid outlet pipes, improving the utilization rate of thermal energy. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the heat energy recovery device of the medical molecular sieve oxygen generator of this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the circulating pump of the heat recovery device in the medical molecular sieve oxygen generator of this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural representation of the internal structure of the adsorption tank and heat exchange tank of the heat recovery device of the medical molecular sieve oxygen generator of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the adsorption tank of the heat recovery device in the medical molecular sieve oxygen generator of this utility model.

[0020] Explanation of reference numerals in the attached diagram: 1. Base plate; 2. Adsorption tank; 3. Oxygen tank; 4. Heat exchange tank; 5. Support plate; 6. Circulation pump; 7. Connecting pipe one; 8. Spiral heat exchange tube one; 9. Connecting pipe two; 10. Spiral heat exchange tube two; 11. Connecting pipe three; 12. Liquid inlet pipe; 13. Liquid outlet pipe; 14. Filter box; 15. Air inlet pipe; 16. Air compressor; 17. Suction pipe; 18. Air outlet pipe; 19. Molecular sieve one; 20. Molecular sieve two; 21. Connecting pipe; 22. One-way valve; 23. Exhaust pipe; 24. Solenoid valve; 25. Support leg. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4This utility model provides an embodiment of a heat recovery device for a medical molecular sieve oxygen generator, comprising a base plate 1; an adsorption tank 2 is disposed at the upper end of the base plate 1, an oxygen tank 3 is disposed on the right side of the adsorption tank 2, and a heat exchange tank 4 is disposed at the rear side of the adsorption tank 2; a support plate 5 is fixedly disposed at the top of the base plate 1, the support plate 5 being located on the right side of the adsorption tank 2 and the heat exchange tank 4; a circulation pump 6 is fixedly disposed at the top of the support plate 5; a connecting pipe 7 is fixedly disposed at the liquid suction end of the circulation pump 6; a spiral heat exchange tube 8 is fixedly disposed at the other end of the connecting pipe 7 through the adsorption tank 2, the spiral heat exchange tube 8 being disposed inside the adsorption tank 2; a connecting pipe 9 is fixedly disposed at the other end of the spiral heat exchange tube 8; a spiral heat exchange tube 10 is fixedly disposed at the other end of the connecting pipe 9 through the adsorption tank 2 and the heat exchange tank 4, the spiral heat exchange tube 10 being disposed inside the heat exchange tank 4; and a connecting pipe 31 is fixedly disposed at the other end of the spiral heat exchange tube 10. 1. The other end of the connecting pipe 3 11 passes through the heat exchange tank 4 and is fixedly installed at the liquid outlet of the circulating pump 6. The upper rear end of the heat exchange tank 4 is provided with an inlet pipe 12, and the lower rear end of the heat exchange tank 4 is provided with an outlet pipe 13. The inlet pipe 12 and the outlet pipe 13 are connected to the external heating system. When the circulating pump 6 is started, the circulating pump 6 can transport the liquid inside the spiral heat exchange tube 1 8 to the spiral heat exchange tube 2 10 through the connecting pipe 1 7 and the connecting pipe 3 11. Then the liquid is transported back to the spiral heat exchange tube 1 8 through the connecting pipe 2 9, thus forming a circulation. The liquid inside the spiral heat exchange tube 1 8 can continuously exchange heat with the compressed gas inside the adsorption tank 2. The heat can then be exchanged to the liquid inside the heat exchange tank 4 through the spiral heat exchange tube 2 10. The liquid inside the heat exchange tank 4 can thus be continuously heated, thereby continuously providing heat to the external heating system through the inlet pipe 12 and the outlet pipe 13.

[0023] Please see Figures 1-4In this embodiment, a filter box 14 and an air compressor 16 are fixedly installed on the top left side of the base plate 1. The air compressor 16 is located on the right side of the filter box 14. An air intake pipe 17 is fixedly installed at the intake end of the air compressor 16, and the other end of the air intake pipe 17 is opened at the air outlet of the filter box 14. An air inlet pipe 15 is opened at the air inlet of the filter box 14. An air outlet pipe 18 is fixedly installed at the air outlet end of the air compressor 16, and the other end of the air outlet pipe 18 is opened at the bottom of the adsorption tank 2. Molecular sieve 19 and molecular sieve 20 are fixedly installed at the top of the adsorption tank 2. Molecular sieve 20 is located inside molecular sieve 19, and molecular sieve 19 is located inside the spiral heat exchange tube 8. A connecting pipe 21 is opened at the top of the adsorption tank 2, and the other end of the connecting pipe 21 is opened at the top of the oxygen tank 3. A one-way valve 22 is installed inside the pipe 21. An exhaust pipe 23 is opened at the lower right end of the oxygen tank 3. A solenoid valve 24 is installed inside the exhaust pipe 23. When the air compressor 16 is started, the air compressor 16 can draw outside air into the filter box 14 through the air inlet pipe 15. After being filtered by the filter box 14, the air is delivered to the adsorption tank 2 through the air inlet pipe 17 and the air outlet pipe 18. At this time, the nitrogen in the air can be adsorbed by molecular sieve 19 and molecular sieve 20. The oxygen in the air can enter the oxygen tank 3 through molecular sieve 19, molecular sieve 20 and the connecting pipe 21. The oxygen tank 3 can thus play the role of collecting oxygen. When the oxygen in the oxygen tank 3 needs to be used, the solenoid valve 24 is opened and the oxygen in the oxygen tank 3 can be used through the exhaust pipe 23.

[0024] Please see Figures 1-4 In this embodiment, four support legs 25 are fixedly installed at the bottom of the adsorption tank 2, oxygen tank 3 and heat exchange tank 4. The other end of the support legs 25 is fixedly installed on the top of the base plate 1. The support legs 25 can support the adsorption tank 2, oxygen tank 3 and heat exchange tank 4.

[0025] When working and oxygen production is required, the air compressor 16 is started. The air compressor 16 draws in outside air through the intake pipe 15 into the filter box 14. After being filtered by the filter box 14, the air is delivered to the adsorption tank 2 through the intake pipe 17 and the outlet pipe 18. At this time, nitrogen in the air can be adsorbed by molecular sieve 19 and molecular sieve 20, and oxygen in the air can enter the oxygen tank 3 through molecular sieve 19, molecular sieve 20, connecting pipe 21 and one-way valve 22. The oxygen tank 3 then plays the role of collecting oxygen. The air compressor 16 delivers compressed gas to... Inside the adsorption tank 2, the circulating pump 6 transports the liquid inside the spiral heat exchange tube 18 to the spiral heat exchange tube 20 through the connecting pipe 17 and the connecting pipe 311. Then, the liquid is transported back to the spiral heat exchange tube 18 through the connecting pipe 29, thus forming a circulation. The liquid inside the spiral heat exchange tube 18 can continuously exchange heat with the compressed gas inside the adsorption tank 2. The heat can then be exchanged to the liquid inside the heat exchange tank 4 through the spiral heat exchange tube 20. The liquid inside the heat exchange tank 4 can thus be continuously heated, thereby continuously providing heat to the external heating system through the liquid inlet pipe 12 and the liquid outlet pipe 13.

[0026] Through the above steps, by setting up adsorption tank 2, heat exchange tank 4, circulation pump 6, connecting pipe 1 7, spiral heat exchange tube 1 8, connecting pipe 2 9, spiral heat exchange tube 2 10, and connecting pipe 3 11, and starting circulation pump 6, the liquid inside spiral heat exchange tube 1 8 and spiral heat exchange tube 2 10 can circulate. The heat of the compressed gas inside adsorption tank 2 can be transferred to the liquid inside heat exchange tank 4 through spiral heat exchange tube 1 8 and spiral heat exchange tube 2 10. The liquid inside heat exchange tank 4 can be continuously heated, and thus can continuously provide heat to the external heating system through liquid inlet pipe 12 and liquid outlet pipe 13, improving the heat utilization rate and avoiding the waste of heat energy. This solves the problem that existing medical molecular sieve oxygen generators cannot recover and utilize the heat generated when the compressor compresses air. During the desorption process, the heat in the exhaust gas is directly released, resulting in the waste of heat energy.

Claims

1. A heat recovery device for medical molecular sieve oxygen generator, comprising a base plate (1); characterized in that: An adsorption tank (2) is installed at the upper end of the base plate (1). An oxygen tank (3) is installed on the right side of the adsorption tank (2). A heat exchange tank (4) is installed at the rear side of the adsorption tank (2). A support plate (5) is fixedly installed on the top of the base plate (1). The support plate (5) is located on the right side of the adsorption tank (2) and the heat exchange tank (4). A circulation pump (6) is fixedly installed on the top of the support plate (5). A connecting pipe (7) is fixedly installed at the liquid suction end of the circulation pump (6). The other end of the connecting pipe (7) passes through the adsorption tank (2) and a spiral heat exchange tube (8) is fixedly installed inside the adsorption tank (2). A connecting pipe 2 (9) is fixedly installed at the other end of the spiral heat exchange tube 1 (8). The other end of the connecting pipe 2 (9) passes through the adsorption tank (2) and the heat exchange tank (4). A spiral heat exchange tube 2 (10) is fixedly installed inside the heat exchange tank (4). A connecting pipe 3 (11) is fixedly installed at the other end of the spiral heat exchange tube 2 (10). The other end of the connecting pipe 3 (11) passes through the heat exchange tank (4) and is fixedly installed at the outlet end of the circulating pump (6). An inlet pipe (12) is opened at the upper rear side of the heat exchange tank (4), and an outlet pipe (13) is opened at the lower rear side of the heat exchange tank (4).

2. The heat recovery device for medical molecular sieve oxygen generator according to claim 1, characterized in that: A filter box (14) and an air compressor (16) are fixedly installed on the top left side of the base plate (1), with the air compressor (16) located on the right side of the filter box (14).

3. The heat recovery device for medical molecular sieve oxygen generator according to claim 1, characterized in that: An air compressor (16) is fixedly provided with an air intake pipe (17), the other end of which is opened at the air outlet of the filter box (14). An air intake pipe (15) is opened at the air inlet of the filter box (14). An air outlet pipe (18) is fixedly provided at the air outlet of the air compressor (16), the other end of which is opened at the bottom of the adsorption tank (2).

4. The heat recovery device for medical molecular sieve oxygen generator according to claim 1, characterized in that: Molecular sieve one (19) and molecular sieve two (20) are fixedly installed on the top of the adsorption tank (2). Molecular sieve two (20) is located inside molecular sieve one (19), and molecular sieve one (19) is located inside the spiral heat exchange tube one (8).

5. The heat recovery device for medical molecular sieve oxygen generator according to claim 1, characterized in that: The top of the adsorption tank (2) is provided with a connecting pipe (21), and the other end of the connecting pipe (21) is located inside the top of the oxygen tank (3). A one-way valve (22) is installed inside the connecting pipe (21).

6. The heat recovery device for medical molecular sieve oxygen generator according to claim 1, characterized in that: An exhaust pipe (23) is provided at the lower right end of the oxygen tank (3), and a solenoid valve (24) is installed inside the exhaust pipe (23).

7. The heat recovery device for medical molecular sieve oxygen generator according to claim 1, characterized in that: The bottom of the adsorption tank (2), oxygen tank (3) and heat exchange tank (4) are all fixedly provided with four support legs (25), and the other end of the support legs (25) is fixedly provided on the top of the base plate (1).

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