Photo-thermal Rafael jet device

Abstract

The utility model discloses a photo-thermal Laval jet device which comprises a high-pressure fan and photo-thermal Laval transduction assemblies, and a plurality of photo-thermal Laval transduction assemblies are connected in series to form a main path. The photo-thermal Laval transduction assembly comprises an air supply inner pipe, an air outlet outer pipe, a jet pipe and solar vacuum pipes, the air supply inner pipe is arranged in the air outlet outer pipe, an air outlet channel is formed between the air supply inner pipe and the air outlet outer pipe, and a plurality of solar vacuum pipes are connected to the side wall of the air outlet outer pipe in parallel; a plurality of jet pipes in one-to-one correspondence with the solar vacuum pipes are connected to the side wall of the air supply inner pipe in parallel, one end of each jet pipe is communicated with an inner cavity of the air supply inner pipe, the other end of each jet pipe extends into the corresponding solar vacuum pipe, one end of the air supply inner pipe is an inner pipe air inlet end, and the other end of the air supply inner pipe is an inner pipe closed end. And the other end is a channel closed end. According to the sludge drying device, solar energy can be utilized for photo-thermal conversion, hot air is provided for sludge drying, waste of resources is reduced, and environmental pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photothermal conversion equipment, in particular to a photothermal Laval jet device. Background Art

[0002] Municipal sewage treatment plants, industrial wastewater treatment plants, and various industries such as the chemical, pharmaceutical, refining, and papermaking process generate sludge during wastewater treatment. Common sludge treatment methods include concentration, digestion, dehydration, drying, incineration, solidification, and comprehensive utilization. Another final disposal method is sanitary landfill.

[0003] The main methods for treating municipal sludge include thermal drying. Thermal drying involves treating the sludge with drying equipment and then reusing it. This method effectively reduces the sludge's volume, stabilizes it, and eliminates odors and pathogens. Dried sludge can be used as both a soil conditioner and an energy source.

[0004] Existing sludge drying equipment mostly utilizes electricity to generate heat, heating air to evaporate the water-rich sludge and achieve dehydration and drying. However, electricity is currently mostly generated by thermal power plants, which use combustible materials (such as coal) as fuel to produce electricity. These fuels are non-renewable resources, and as they are used, they are depleted, leading to resource waste. Furthermore, the energy utilization rate during the conversion process is low, resulting in significant losses, further exacerbating resource depletion. Furthermore, during thermal power generation, the combustion of coal produces a large amount of harmful substances, causing environmental pollution.

[0005] Solar energy is a renewable and clean energy source. There are two ways to utilize solar energy: photothermal conversion and photoelectric conversion. Therefore, how to convert solar energy into photothermal energy and apply it to the sludge drying and dehydration process to reduce resource waste and reduce environmental pollution is a technical problem that we urgently need to solve. Utility Model Content

[0006] The purpose of this utility model is to provide a photothermal Lafarge jet device to solve the problems existing in the above-mentioned prior art. It can use solar energy for photothermal conversion, provide hot air for sludge drying, reduce resource waste and reduce environmental pollution.

[0007] To achieve the above purpose, the present invention provides the following solutions:

[0008] The utility model provides a photothermal Lafayette jet device, comprising a high-pressure blower and a photothermal Lafayette transducer assembly, wherein a plurality of the photothermal Lafayette transducer assemblies are connected in series to form a main circuit;

[0009] The solar thermal Lafarge energy conversion assembly includes an inner air supply tube, an outer air outlet tube, a jet tube and a solar vacuum tube. The inner air supply tube is arranged in the outer air outlet tube, an air outlet channel is formed between the inner air supply tube and the outer air outlet tube. A plurality of the solar vacuum tubes are connected in parallel on the side wall of the outer air outlet tube, and each of the solar vacuum tubes is communicated with the air outlet channel. A plurality of the jet tubes corresponding to each of the solar vacuum tubes are connected in parallel on the side wall of the inner air supply tube. One end of the jet tube is communicated with the inner cavity of the inner air supply tube, and the other end extends into the corresponding solar vacuum tube and is communicated with the inner cavity of the solar vacuum tube. An air flow channel is formed between the jet tube and the corresponding solar vacuum tube. One end of the inner air supply tube is the air inlet end of the inner tube, and the other end is the closed end of the inner tube. One end of the air outlet channel is the channel air outlet end, and the other end is the channel closed end.

[0010] In the two adjacent photothermal Lafarge transducer assemblies on the main road, the channel air outlet end of the preceding photothermal Lafarge transducer assembly is connected to the inner tube air inlet end of the following photothermal Lafarge transducer assembly through a pipeline;

[0011] The inner tube air inlet end of the photothermal Lafarge transducer assembly at the head end on the main line is connected to the air outlet of the high-pressure blower.

[0012] Preferably, a plurality of air outlet branch pipes are connected in parallel on the main line, each of the air outlet branch pipes is connected to a photothermal Lafarge energy conversion component, and the air inlet end of the inner tube of the photothermal Lafarge energy conversion component is connected to the air outlet end of the corresponding air outlet branch pipe.

[0013] Preferably, a plurality of air inlet branch pipes are connected in parallel on the main road, each of the air inlet branch pipes is connected to a photothermal Lafarge energy conversion component, and the channel air outlet end of the photothermal Lafarge energy conversion component is connected to the air inlet end of the corresponding air inlet branch pipe, and the inner tube air inlet end of the photothermal Lafarge energy conversion component is connected to a high-pressure fan and is connected to the air outlet of the high-pressure fan.

[0014] Preferably, a temperature sensor is provided at the air outlet end of the channel of the photothermal Lafarge transducer assembly for measuring the air flow temperature at the air outlet end of the channel.

[0015] Preferably, a first air outlet switch is provided on the connecting pipe between the photothermal Laval transducer component at the end of the main line and the adjacent photothermal Laval transducer component.

[0016] Preferably, each of the air outlet branch pipes is provided with a second air outlet switch.

[0017] Preferably, the inner air supply pipe and the outer air outlet pipe are coaxially arranged, and the air outlet channel is an annular air outlet channel.

[0018] Preferably, the jet tube and the solar vacuum tube are coaxially arranged, and the airflow channel is an annular airflow channel.

[0019] Preferably, the jet tube and the solar vacuum tube are both perpendicular to the air outlet outer tube.

[0020] Preferably, a plurality of the solar vacuum tubes are connected in parallel to both ends of the side wall of the air outlet outer pipe.

[0021] Compared with the prior art, the utility model has achieved the following technical effects:

[0022] The utility model provides a solar thermal Lafarge jet device. A high-pressure blower draws air from the inner air supply pipe at the head end into the jet pipe within the solar vacuum tube, displacing the trapped heat within the solar vacuum tube. The air then enters the outer air outlet pipe and then the inner air supply pipe of the next solar thermal Lafarge energy conversion assembly. The first set of hot air at the outlet serves as the second set of inlet air, further displacing the trapped heat within the solar vacuum tube. Similarly, the airflow temperature is increased through each series-connected solar thermal Lafarge energy conversion assembly, generating a high-temperature solar thermal heat source to provide the hot air required for sludge drying. In the utility model, the inner air supply pipe is installed within the large-diameter outer air outlet pipe of the solar thermal Lafarge energy conversion assembly. The inner air supply pipe is equipped with a micro-jet pipe inserted into the solar vacuum tube, forming a Rafarge nozzle structure. This generates a high-speed airflow within the solar vacuum tube. The high-speed airflow can quickly remove the hot air within the solar vacuum tube, fully utilizing the heat energy generated by the solar vacuum tube and ensuring the final output airflow temperature. The utility model utilizes solar energy to perform light-heat conversion to produce hot gas required for sludge drying, thereby reducing resource waste caused by power generation in thermal power plants and being able to reduce environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic structural diagram of a photothermal Laval jet device in an embodiment of the present invention;

[0025] Figure 2 Schematic diagram of the structure of the photothermal Lafarge transducer assembly in an embodiment of the present invention.

[0026] In the figure: 1-high-pressure fan, 2-photothermal Lafarge transducer assembly, 201-inner air supply pipe, 202-outer air outlet pipe, 203-jet tube, 204-solar vacuum tube, 205-air outlet channel, 206-air flow channel, 207-inner pipe air inlet end, 208-inner pipe closed end, 209-channel air outlet end, 210-channel closed end, 3-main road, 4-outlet branch pipe, 5-inlet branch pipe, 6-temperature sensor, 7-first air outlet switch, 8-second air outlet switch. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying 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.

[0028] The purpose of the utility model is to provide a photothermal Lafarge jet device to solve the problems existing in the prior art. It can use solar energy for photothermal conversion, provide hot air for sludge drying, reduce resource waste and reduce environmental pollution.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0030] like Figure 1-Figure 2 As shown, the utility model provides a photothermal Laval jet device, comprising a high-pressure blower 1 and a photothermal Laval transducer assembly 2, wherein a plurality of photothermal Laval transducer assemblies 2 are connected in series to form a main path 3;

[0031] The solar thermal Lafarge energy conversion assembly 2 includes an inner air supply tube 201, an outer air outlet tube 202, a jet tube 203 and a solar vacuum tube 204. The inner air supply tube 201 is arranged in the outer air outlet tube 202. An air outlet channel 205 is formed between the inner air supply tube 201 and the outer air outlet tube 202. A plurality of solar vacuum tubes 204 are connected in parallel on the side wall of the outer air outlet tube 202. Each solar vacuum tube 204 is connected to the air outlet channel 205. The side wall of the inner air supply tube 201 is connected in parallel with each solar vacuum tube 204. Corresponding to a plurality of jet tubes 203, one end of the jet tube 203 is connected to the inner cavity of the air supply inner tube 201, and the other end extends into the corresponding solar vacuum tube 204 and is connected to the inner cavity of the solar vacuum tube 204. An air flow channel 206 is formed between the jet tube 203 and the corresponding solar vacuum tube 204. One end of the air supply inner tube 201 is an inner tube air inlet end 207, and the other end is an inner tube closed end 208. One end of the air outlet channel 205 is a channel air outlet end 209, and the other end is a channel closed end 210.

[0032] In two adjacent photothermal Lafarge transducer assemblies 2 on the main path 3, the channel air outlet end 209 of the preceding photothermal Lafarge transducer assembly 2 is connected to the inner tube air inlet end 207 of the following photothermal Lafarge transducer assembly 2 through a pipeline;

[0033] The inner tube air inlet end 207 of the photothermal Lafarge transducer assembly 2 at the head end of the main path 3 is connected to the air outlet of the high-pressure blower 1 .

[0034] When in use, the high-pressure blower 1 inputs air from the air supply inner pipe 201 at the head end into the jet tube 203 in the solar vacuum tube 204, displacing the hot air trapped in the solar vacuum tube 204, and then enters the air outlet outer pipe 202, and then enters the air supply inner pipe 201 of the next solar thermal Lafarge energy conversion component 2, using the first group of outlet hot air as the second group of inlet air, further displacing the heat energy trapped in the solar vacuum tube 204, and so on. The air flow temperature is increased through the series-connected solar thermal Lafarge energy conversion components 2, and a solar thermal high-temperature heat source is produced to provide the hot air required for sludge drying. The large-diameter outer air outlet pipe 202 of the solar-thermal Lafarge energy conversion assembly 2 is fitted with an inner air supply pipe 201. This inner air supply pipe 201 is fitted with a micro-jet tube 203 inserted into a solar vacuum tube 204, forming a Lafarge nozzle structure. This generates a high-speed airflow within the solar vacuum tube 204, which rapidly displaces the heat within the solar vacuum tube 204, fully utilizing the heat energy generated by the solar vacuum tube 204 and ensuring the final airflow temperature. The outer air outlet pipe 202 is a DN100 pipe, the inner air supply pipe 201 is a DN50 pipe, the jet tube 203 is an 8mm diameter pipe, and the solar vacuum tube 204 is a DN15 pipe. This device utilizes solar energy for photothermal conversion, producing the hot air required for sludge drying. This reduces resource waste associated with thermal power generation and reduces environmental pollution.

[0035] Several outlet branch pipes 4 are connected in parallel to the main circuit 3. Each outlet branch pipe 4 is connected to a respective solar thermal Lafarge transducer assembly 2. The inner tube air inlet end 207 of each solar thermal Lafarge transducer assembly 2 is connected to the outlet end of the corresponding outlet branch pipe 4. The parallel arrangement of the outlet branch pipes 4 and the solar thermal Lafarge transducer assemblies 2 connected to them increases the air outlet area while further displacing the hot air within the solar vacuum tubes 204, thereby raising the outlet air temperature. Specifically, in this embodiment, two outlet branch pipes 4 are connected in parallel to the main circuit 3.

[0036] Several air inlet branches 5 are also connected in parallel to the main circuit 3. Each air inlet branch 5 is connected to a respective solar thermal Laval transducer assembly 2. The channel outlet end 209 of the solar thermal Laval transducer assembly 2 is connected to the air inlet end of the corresponding air inlet branch 5. The inner tube air inlet end 207 of the solar thermal Laval transducer assembly 2 is connected to a high-pressure blower 1 and communicates with the air outlet of the high-pressure blower 1. The parallel arrangement of the air inlet branch 5 and the high-pressure blower 1 connected thereto increases the air flow rate. Furthermore, the solar thermal Laval transducer assembly 2 connected to the air inlet branch 5 displaces the hot air within the solar vacuum tubes 204 of each branch, thereby increasing the air temperature of each branch. Specifically, in this embodiment, one air inlet branch 5 is connected in parallel to the main circuit 3.

[0037] In this embodiment, a temperature sensor 6 is provided at the channel air outlet 209 of the photothermal Lafarge transducer assembly 2 for measuring the air flow temperature at the channel air outlet 209 so as to monitor the air temperature at each channel air outlet 209 .

[0038] In this embodiment, a first air outlet switch 7 is installed on the connecting pipe between the CTA Laval energy converter assembly 2 at the end of the main line 3 and the adjacent CTA Laval energy converter assembly 2. A second air outlet switch 8 is installed on each outlet branch pipe 4. Depending on the actual situation, either the first air outlet switch 7 or the second air outlet switch 8 can be selectively opened. For example, in winter, the first air outlet switch 7 can be opened, while the second air outlet switches 8 can be closed. This increases the temperature of the final exhaust gas through the CTA Laval energy converter assemblies 2 connected in series on the main line 3 and the CTA Laval energy converter assemblies 2 connected to the air inlet branch pipe 5, thereby generating a high-temperature CTA heat source. In summer, the first air outlet switch 7 can be closed, while the second air outlet switches 8 can be opened. This increases the airflow rate while maintaining the final exhaust gas temperature to meet the sludge drying requirements through the CTA Laval energy converter assemblies 2 on the upstream side of the outlet branch pipe 4, the CTA Laval energy converter assemblies 2 connected to the outlet branch pipe 4, and the high-pressure blower 1.

[0039] In this embodiment, the inner air supply pipe 201 and the outer air outlet pipe 202 are coaxially arranged, and the air outlet channel 205 is an annular air outlet channel. The jet pipe 203 and the solar vacuum tube 204 are coaxially arranged, and the air flow channel 206 is an annular air flow channel.

[0040] In this embodiment, the jet tube 203 and the solar vacuum tube 204 are both perpendicular to the air outlet outer tube 202 .

[0041] In this embodiment, a plurality of solar vacuum tubes 204 are connected in parallel to both ends of the side wall of the outer air outlet pipe 202 .

[0042] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A photothermal Laval jet device, characterized in that: It includes a high-pressure blower and a photothermal Lafarge transducer assembly, wherein a plurality of the photothermal Lafarge transducer assemblies are connected in series to form a main circuit; The solar thermal Lafarge energy conversion assembly includes an inner air supply tube, an outer air outlet tube, a jet tube and a solar vacuum tube. The inner air supply tube is arranged in the outer air outlet tube, an air outlet channel is formed between the inner air supply tube and the outer air outlet tube. A plurality of the solar vacuum tubes are connected in parallel on the side wall of the outer air outlet tube, and each of the solar vacuum tubes is communicated with the air outlet channel. A plurality of the jet tubes corresponding to each of the solar vacuum tubes are connected in parallel on the side wall of the inner air supply tube. One end of the jet tube is communicated with the inner cavity of the inner air supply tube, and the other end extends into the corresponding solar vacuum tube and is communicated with the inner cavity of the solar vacuum tube. An air flow channel is formed between the jet tube and the corresponding solar vacuum tube. One end of the inner air supply tube is the air inlet end of the inner tube, and the other end is the closed end of the inner tube. One end of the air outlet channel is the channel air outlet end, and the other end is the channel closed end. In the two adjacent photothermal Lafarge transducer assemblies on the main road, the channel air outlet end of the preceding photothermal Lafarge transducer assembly is connected to the inner tube air inlet end of the following photothermal Lafarge transducer assembly through a pipeline; The inner tube air inlet end of the photothermal Lafarge transducer assembly at the head end on the main line is connected to the air outlet of the high-pressure blower.

2. The photothermal Laval jet device according to claim 1, characterized in that: A plurality of air outlet branch pipes are connected in parallel on the main road, each of the air outlet branch pipes is connected to a photothermal Lafarge energy conversion component, and the air inlet end of the inner tube of the photothermal Lafarge energy conversion component is connected to the air outlet end of the corresponding air outlet branch pipe.

3. The photothermal Laval jet device according to claim 1, characterized in that: Several air inlet branch pipes are connected in parallel on the main road, and each of the air inlet branch pipes is connected to a photothermal Lafarge energy conversion component, and the channel air outlet end of the photothermal Lafarge energy conversion component is connected to the air inlet end of the corresponding air inlet branch pipe, and the inner tube air inlet end of the photothermal Lafarge energy conversion component is connected to a high-pressure fan and is connected to the air outlet of the high-pressure fan.

4. The photothermal Laval jet device according to claim 1, characterized in that: A temperature sensor is provided at the air outlet end of the channel of the photothermal Lafarge transducer assembly for measuring the air flow temperature at the air outlet end of the channel.

5. The photothermal Laval jet device according to claim 1, characterized in that: A first air outlet switch is provided on the connecting pipe between the photothermal Lafarge transducer component at the end of the main line and the adjacent photothermal Lafarge transducer component.

6. The photothermal Laval jet device according to claim 2, characterized in that: Each of the air outlet branch pipes is provided with a second air outlet switch.

7. The photothermal Laval jet device according to claim 1, characterized in that: The inner air supply pipe and the outer air outlet pipe are coaxially arranged, and the air outlet channel is an annular air outlet channel.

8. The photothermal Laval jet device according to claim 7, characterized in that: The jet tube is coaxially arranged with the solar vacuum tube, and the air flow channel is an annular air flow channel.

9. The photothermal Laval jet device according to claim 8, characterized in that: The jet tube and the solar vacuum tube are both perpendicular to the air outlet outer tube.

10. The photothermal Laval jet device according to claim 1, characterized in that: Both ends of the side wall of the air outlet outer pipe are respectively connected in parallel with a plurality of the solar vacuum tubes.

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