Rotating film type boiler deaerator

Abstract

The utility model provides a rotating membrane type boiler deaerator, which relates to the technical field of boiler deaeration, and comprises a water tank, a hydrogen storage bottle, a membrane separation device and a proton exchange membrane fuel cell, the top of the water tank is provided with a deaeration tower, the top of the deaeration tower is provided with an exhaust pipe, the outside of the hydrogen storage bottle is sleeved with a vacuum bottle, and the membrane separation device is arranged on the vacuum bottle. A heating pipeline is arranged in the vacuum bottle, a hydrogen discharge port is formed in the top of the hydrogen storage bottle, and a fourth conveying pipe is fixedly communicated between the hydrogen discharge port and an anode hydrogen input port of the proton exchange membrane fuel cell. According to the utility model, heat in waste gas discharged in the operation process of a conventional rotating film type filtering deaerator is converted into activation energy of the hydrogen storage bottle, so that the hydrogen storage bottle is promoted to release hydrogen, and a large amount of oxygen in the waste gas is separated out through the film separation device; and the generated hydrogen and oxygen are matched with the proton exchange membrane fuel cell to be converted into electric energy with relatively high economic value, so that reasonable utilization of resources is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler deaeration, in particular to a spin film type boiler deaerator. Background Technique

[0002] In the process of boiler feed water treatment technology, deaeration is a very crucial link. Dissolved oxygen in water is one of the main reasons for the corrosion of thermal equipment. The content of dissolved oxygen in feed water directly affects the safe and economic operation of thermal equipment such as boilers, and the spin film type boiler deaerator mainly consists of a water tank and a deaeration tower.

[0003] The existing spin film type boiler deaerator mainly converts the fed condensate water and make-up water into a spin film state through the deaeration tower, and then fully contacts with the fed high-temperature steam to discharge the oxygen in the water, so as to avoid the effect of oxygen corrosion on the boiler. However, the high-temperature oxygen generated during the operation of the deaeration tower will be directly discharged into the air, and oxygen and heat have certain economic value. Direct discharge is not conducive to the rational utilization of resources. Therefore, in view of the above problems, we propose a new type of spin film type boiler deaerator. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the high-temperature oxygen generated during the operation of the deaeration tower in the prior art will be directly discharged into the air, and oxygen and heat have certain economic value, and direct discharge is not conducive to the rational utilization of resources, and a spin film type boiler deaerator is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a spin film type boiler deaerator, including a water tank, a hydrogen storage bottle, a membrane separation device and a proton exchange membrane fuel cell. An exhaust pipe is arranged at the top of the deaeration tower installed on the top of the water tank. A heat preservation bottle is sleeved outside the hydrogen storage bottle, and a heating pipeline is arranged inside the heat preservation bottle. A hydrogen discharge port is arranged at the top of the hydrogen storage bottle. A fourth delivery pipe is fixedly connected between the hydrogen discharge port and the anode hydrogen input port of the proton exchange membrane fuel cell. A first delivery pipe is fixedly connected between the outside of the heat preservation bottle and the top end of the exhaust pipe.

[0006] Preferably, a second delivery pipe is fixedly connected between the outside of the heat preservation bottle and the gas input port of the membrane separation device. An oxygen discharge port is arranged outside the membrane separation device, and a third delivery pipe is fixedly connected between the oxygen discharge port and the cathode oxygen input port of the proton exchange membrane fuel cell.

[0007] Preferably, one end of the heating pipeline is communicated with the end of the first delivery pipe, and the other end of the heating pipeline is communicated with one end of the second delivery pipe.

[0008] Preferably, the deaeration tower is fixedly installed near the middle position at the top of the water tank, and the deaeration tower and the water tank are in a communicating state. The bottom of the water tank is symmetrically welded with support frames.

[0009] Preferably, symmetrically fixed and communicated with the outer surface of the deaeration tower near the top is a water inlet pipe, and fixedly communicated with the outer surface of the deaeration tower below the water inlet pipe is a first steam pipe.

[0010] Preferably, fixedly communicated with the outer surface of the deaeration tower near the bottom is a second steam pipe. Both the cathode and anode tops of the proton exchange membrane fuel cell are provided with power connection terminals.

[0011] Preferably, the heating pipeline is in a spiral shape. A temperature sensor is installed at the top of the thermos flask, and the detection end of the temperature sensor penetrates through the top of the thermos flask and extends into the hydrogen storage bottle.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, by converting the heat in the waste gas discharged during the operation of the conventional rotary film type filter deaerator into the activation energy of the hydrogen storage bottle, the hydrogen storage bottle is prompted to release hydrogen, and a large amount of oxygen in the waste gas is separated by the membrane separation device. Then, the generated hydrogen and oxygen are used in combination with the proton exchange membrane fuel cell to be converted into electric energy with high economic value, which is beneficial to the rational utilization of resources.

[0014] 2. In the present utility model, by designing a thermos flask outside the hydrogen storage bottle to play a role in reducing heat loss, and the heating pipeline inside the thermos flask is designed in a spiral shape, which greatly increases the length of the waste gas flow path, improves the heat exchange effect, ensures that the hydrogen storage bottle can obtain sufficient activation energy, and by setting a temperature sensor to monitor the temperature of the hydrogen storage bottle, when the temperature of the hydrogen storage bottle is not enough to release hydrogen, the internal heater is used to increase the temperature in time, ensuring the smooth operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the rotary film type boiler deaerator proposed by the present utility model;

[0016] Figure 2 is another three-dimensional view of the rotary film type boiler deaerator proposed by the present utility model;

[0017] Figure 3 is a top view of the rotary film type boiler deaerator proposed by the present utility model;

[0018] Figure 4 is a cross-sectional view of the hydrogen storage bottle of the rotary film type boiler deaerator proposed by the present utility model.

[0019] Legend: 1. Water tank; 12. Support frame; 2. Deaerator tower; 21. Water inlet pipe; 22. First steam pipe; 23. Second steam pipe; 24. Exhaust pipe; 3. First delivery pipe; 4. Thermos flask; 41. Hydrogen storage cylinder; 42. Heating pipeline; 43. Hydrogen discharge port; 44. Temperature sensor; 5. Second delivery pipe; 6. Membrane separation device; 7. Oxygen discharge port; 8. Proton exchange membrane fuel cell; 81. Power connection terminal; 9. Third delivery pipe; 91. Fourth delivery pipe. Detailed implementation

[0020] In order to more clearly understand the above-mentioned objects, features, and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0022] Embodiment 1: As Figures 1 - 4 shown, the present invention provides a rotating film type boiler deaerator, which includes a water tank 1, a hydrogen storage cylinder 41, a membrane separation device 6, and a proton exchange membrane fuel cell 8. An deaerator tower 2 is installed on the top of the water tank 1. An exhaust pipe 24 is provided at the top of the deaerator tower 2. A thermos flask 4 is sleeved outside the hydrogen storage cylinder 41. A heating pipeline 42 is provided inside the thermos flask 4. A hydrogen discharge port 43 is provided at the top of the hydrogen storage cylinder 41. A fourth delivery pipe 91 is fixedly connected between the hydrogen discharge port 43 and the anode hydrogen input port of the proton exchange membrane fuel cell 8. A first delivery pipe 3 is fixedly connected between the outside of the thermos flask 4 and the top end of the exhaust pipe 24. A second delivery pipe 5 is fixedly connected between the outside of the thermos flask 4 and the gas input port of the membrane separation device 6. An oxygen discharge port 7 is provided outside the membrane separation device 6, and a third delivery pipe 9 is fixedly connected between the oxygen discharge port 7 and the cathode oxygen input port of the proton exchange membrane fuel cell 8. One end of the heating pipeline 42 is connected to the end of the first delivery pipe 3, and the other end of the heating pipeline 42 is connected to one end of the second delivery pipe 5. The deaerator tower 2 is fixedly installed near the middle position on the top of the water tank 1, and the deaerator tower 2 and the water tank 1 are in a communicating state. Support frames 12 are symmetrically welded at the bottom of the water tank 1. Water inlet pipes 21 are symmetrically and fixedly connected to the outer surface of the deaerator tower 2 near the top. A first steam pipe 22 is fixedly connected to the outer surface of the deaerator tower 2 at a position below the water inlet pipe 21. A second steam pipe 23 is fixedly connected to the outer surface of the deaerator tower 2 near the bottom. Power connection terminals 81 are provided at the top of both the cathode and anode of the proton exchange membrane fuel cell 8.

[0023] The effect achieved by the entire Embodiment 1 is that when the device is in use, condensate water and make-up water are sent into the deaeration tower 2 through the water inlet pipe 21. At this time, the water entering under the action of gravity will form a water mist through the spray water structure inside the deaeration tower 2. After the high-temperature steam is input through the first steam pipe 22, it plays a role in heating the water mist, thereby increasing the solubility of the water and promoting the escape of oxygen. Subsequently, the water mist enters the liquid-vapor network and the packing layer inside the deaeration tower 2 to form a swirling film, and the surface tension decreases. At this time, the high-temperature steam input through the second steam pipe 23 is used for heat exchange to fully heat the swirling film again, so as to achieve the effect of deep deaeration. At this time, oxygen and other gases in the water will be discharged from the exhaust pipe 24 at the top of the deaeration tower 2 along with the high temperature. When the high-temperature gas containing a large amount of oxygen is discharged, it will enter the heating pipeline 42 inside the thermos flask 4 through the first delivery pipe 3. At this time, the high-temperature gas will heat the hydrogen storage bottle 41 inside the thermos flask 4 through heat exchange to activate it. The hydrogen storage bottle 41 is made of a magnesium-based hydrogen storage material. After activation, the hydrogen storage bottle 41 will decompose into magnesium and hydrogen. The hydrogen will be sent into the hydrogen inlet of the proton exchange membrane fuel cell 8 through the fourth delivery pipe 91. The temperature of the high-temperature gas providing the activation energy will decrease and enter the membrane separation device 6 through the second delivery pipe 5. At this time, different gases are separated by the membrane separation device 6, and then oxygen is discharged through the oxygen discharge port 7. At this time, oxygen is sent into the oxygen inlet of the proton exchange membrane fuel cell 8 through the third delivery pipe 9. At this time, hydrogen and oxygen in the proton exchange membrane fuel cell 8 will react to generate electric energy. The generated electric energy can be used to supply power to the electrical equipment used by the boiler or input into the energy storage battery for storage. This design converts the heat in the waste gas discharged during the operation of the conventional swirling film type filter deaerator into the activation energy of the hydrogen storage bottle 41, promotes the hydrogen storage bottle 41 to release hydrogen, separates a large amount of oxygen in the waste gas through the membrane separation device 6, and then uses the generated hydrogen and oxygen to cooperate with the proton exchange membrane fuel cell 8 to be converted into electric energy with high economic value, which is conducive to the rational utilization of resources.

[0024] Embodiment 2: As Figures 1 - 4 shown, the heating pipeline 42 is in a spiral shape, and a temperature sensor 44 is installed at the top of the thermos flask 4. The detection end of the temperature sensor 44 penetrates through the top of the thermos flask 4 and extends into the hydrogen storage bottle 41.

[0025] The effect achieved by the entire Embodiment 2 is that by designing a thermos 4 outside the hydrogen storage bottle 41, the heat loss is reduced. The heating pipeline 42 inside the thermos 4 is designed in a spiral shape, which greatly increases the length of the exhaust gas flow path, improves the heat exchange effect, ensures that the hydrogen storage bottle 41 can obtain sufficient activation energy, and monitors the temperature of the hydrogen storage bottle 41 by setting a temperature sensor 44. When the temperature of the hydrogen storage bottle 41 is not sufficient to release hydrogen, the temperature is increased in time by using the internal heater, ensuring the smooth operation of the device. All the electrical components in this device are uniformly controlled by an external PLC controller.

[0026] Working principle: When this device is in use, condensate water and make-up water are sent into the deaeration tower 2 through the water inlet pipe 21. At this time, the water entering under the action of gravity will form a water mist through the spray water structure inside the deaeration tower 2. After the high-temperature steam is input through the first steam pipe 22, it plays a role in heating the water mist, thereby increasing the solubility of the water and promoting the escape of oxygen. Subsequently, the water mist enters the liquid-vapor network and the packing layer inside the deaeration tower 2 to form a rotating film, and the surface tension decreases. At this time, the high-temperature steam input through the second steam pipe 23 is used for heat exchange to fully heat the rotating film again, so as to achieve the effect of deep deaeration. At this time, oxygen and other gases in the water will be discharged from the exhaust pipe 24 at the top of the deaeration tower 2 along with the high temperature. After the high-temperature gas containing a large amount of oxygen is discharged, it will enter the heating pipeline 42 inside the thermos flask 4 through the first delivery pipe 3. At this time, the high-temperature gas will heat the hydrogen storage bottle 41 inside the thermos flask 4 through heat exchange to activate it. The activated hydrogen storage bottle 41 will decompose into magnesium and hydrogen. The hydrogen will be sent into the hydrogen inlet of the proton exchange membrane fuel cell 8 through the fourth delivery pipe 91. The thermos flask 4 is designed outside the hydrogen storage bottle 41 to reduce heat loss. The heating pipeline 42 inside the thermos flask 4 is designed in a spiral shape, which greatly increases the length of the exhaust gas flow path, improves the heat exchange effect, ensures that the hydrogen storage bottle 41 can obtain sufficient activation energy, and monitors the temperature of the hydrogen storage bottle 41 by setting a temperature sensor 44. When the temperature of the hydrogen storage bottle 41 is not enough to release hydrogen, the internal heater is used to increase the temperature in time. The temperature of the high-temperature gas providing the activation energy will drop and enter the membrane separation device 6 through the second delivery pipe 5. At this time, different gases are separated through the membrane separation device 6, and then oxygen is discharged through the oxygen discharge port 7. At this time, oxygen is sent into the oxygen inlet of the proton exchange membrane fuel cell 8 through the third delivery pipe 9. At this time, hydrogen and oxygen in the proton exchange membrane fuel cell 8 will react to generate electric energy. The generated electric energy can be used to supply power to the electrical equipment used by the boiler or input into the energy storage battery for storage. This design converts the heat in the waste gas discharged during the operation of the conventional rotating film type filter deaerator into the activation energy of the hydrogen storage bottle 41, promotes the hydrogen storage bottle 41 to release hydrogen, separates a large amount of oxygen in the waste gas through the membrane separation device 6, and then uses the generated hydrogen and oxygen to cooperate with the proton exchange membrane fuel cell 8 to be converted into electric energy with high economic value, which is beneficial to the rational use of resources

[0027] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention

Claims

1. A rotary film boiler deaerator, comprising a water tank (1), a hydrogen storage bottle (41), a membrane separation device (6) and a proton exchange membrane fuel cell (8), characterized in that: A deoxygenation tower (2) is installed on the top of the water tank (1), an exhaust pipe (24) is provided on the top of the deoxygenation tower (2), a thermos bottle (4) is provided on the outside of the hydrogen storage bottle (41), a heating pipeline (42) is provided inside the thermos bottle (4), a hydrogen discharge port (43) is provided on the top of the hydrogen storage bottle (41), a fourth delivery pipe (91) is fixedly connected between the hydrogen discharge port (43) and the anode hydrogen input port of the proton exchange membrane fuel cell (8), and a first delivery pipe (3) is fixedly connected between the outside of the thermos bottle (4) and the top of the exhaust pipe (24).

2. The rotary film boiler deaerator according to claim 1, characterized in that: A second delivery pipe (5) is fixedly connected between the outside of the thermos bottle (4) and the gas input port of the membrane separation device (6), an oxygen exhaust port (7) is provided outside the membrane separation device (6), and a third delivery pipe (9) is fixedly connected between the oxygen exhaust port (7) and the cathode oxygen input port of the proton exchange membrane fuel cell (8).

3. The rotary film boiler deaerator according to claim 2, characterized in that: One end of the heating pipeline (42) is connected to the end of the first delivery pipe (3), and the other end of the heating pipeline (42) is connected to one end of the second delivery pipe (5).

4. The rotary film boiler deaerator according to claim 3, characterized in that: The deaerator (2) is fixedly mounted on the top of the water tank (1) near the middle, and the deaerator (2) and the water tank (1) are in a connected state. A support frame (12) is symmetrically welded to the bottom of the water tank (1).

5. The rotary film boiler deaerator according to claim 4, characterized in that: A water inlet pipe (21) is symmetrically fixedly connected to a position near the top of the outer surface of the deaerator (2), and a first steam pipe (22) is fixedly connected to a position below the water inlet pipe (21) on the outer surface of the deaerator (2).

6. The rotary film boiler deaerator according to claim 5, characterized in that: A second steam pipe (23) is fixedly connected to a position near the bottom of the outer surface of the deoxygenation tower (2), and power connection terminals (81) are provided at the tops of the cathode and anode of the proton exchange membrane fuel cell (8).

7. The rotary film boiler deaerator according to claim 6, characterized in that: The heating pipeline (42) is spiral-shaped, and a temperature sensor (44) is installed on the top of the thermos bottle (4). The detection end of the temperature sensor (44) passes through the top of the thermos bottle (4) and extends into the interior of the hydrogen storage bottle (41).

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