CN218936314U - A high temperature and low pressure steam generator - Google Patents

Abstract

The utility model provides a high-temperature low-pressure steam generator, which comprises a reaction chamber, a high-temperature medium and a steam generating pipe for generating steam; the high-temperature medium is arranged in the reaction chamber, and the steam generating pipe is arranged in the high-temperature medium; the steam generating pipe is contacted with the high-temperature medium; the high-pressure spraying device is used for outputting water mist to the steam generating pipe; the pipe diameter of the steam generating pipe is gradually increased along the conveying direction of the steam; the steam generating reaction speed is high, the pressure can be adjusted by adjusting the flow of the high-pressure spraying device, the steam generating reaction device can be used immediately after being opened, compared with the traditional boiler, the energy is saved by 20-30%, the pipe diameter is gradually increased, the steam flows smoothly along the flowing direction, and the steam generating reaction device is beneficial to the steam generation.

Description

A high temperature and low pressure steam generator

technical field

The utility model relates to the technical field of steam generators, in particular to a high-temperature and low-pressure steam generator.

Background technique

A steam generator, also called a steam heat source machine (commonly known as a boiler), is a mechanical device that uses the thermal energy of fuel or other energy sources to heat water into hot water or steam. Traditional boilers require high energy consumption and take a long time to generate steam. The steam generated by the boiler makes the inside of the boiler in a state of high temperature and high pressure, which has high requirements for the structural strength of the boiler; and the equal diameter of the steam generation pipe is not conducive to steam the transmission process.

In view of this, the inventor of this case conducted in-depth research on the above-mentioned problem, and then this case was produced.

Utility model content

The purpose of the utility model is to provide a high-temperature and low-pressure steam generator to solve the problem mentioned in the background art that the equal pipe diameters of steam generating pipes are not conducive to steam transmission.

In order to achieve the above object, the utility model adopts such technical scheme:

A high-temperature and low-pressure steam generator, comprising a reaction chamber, a high-temperature medium, and a steam generation tube for generating steam; the high-temperature medium is arranged in the reaction chamber, and the steam generation pipe is arranged in the high-temperature medium; The steam generating tube is in contact with the high-temperature medium; it also includes a high-pressure spray device that outputs water mist to the steam generating tube; the diameter of the steam generating tube gradually increases along the direction of steam delivery.

Further, the steam generation tube is arranged in a spiral manner.

Further, the steam generation pipe includes several steam pipe sections connected in sequence and with different pipe diameters; the pipe diameters of the steam pipes in each individual steam pipe section are equal, and along the steam flow direction, the pipe diameters of several steam pipe sections increase sequentially .

Further, the steam generating pipe includes a first steam pipe, a second steam pipe and a third steam pipe; the second steam pipe is connected between the first steam pipe and the third steam pipe, and the first steam pipe, The pipe diameters of the second steam pipe and the third steam pipe increase sequentially.

Further, the output end of the steam generation pipe is connected to the sub-cylinder.

Further, it also includes a water mist flow pipe arranged in the high-temperature medium; the high-pressure spray device is arranged at one end of the water mist flow pipe, and the water mist flow pipe passes through the connecting pipe and the steam on the side away from the high-pressure spray device. The generation pipes are connected; the water mist circulation pipe also includes the other end passing through the side wall of the reaction chamber, and the end of the water mist circulation pipe close to the connecting pipe is provided with an end cap to seal the end of the water mist circulation pipe.

Further, a heating device for heating the high-temperature medium is also included, and the heating device includes a plurality of electric heaters.

Further, a plurality of electric heaters are arranged vertically and arranged in a matrix.

Further, the high-temperature medium includes molten salt, and the heating temperature range of the molten salt is 150-1200°C.

Further, there are two steam generating tubes and two high-pressure spray devices respectively.

After adopting the above structure, the utility model relates to a high-temperature and low-pressure steam generator, which has at least the following beneficial effects:

1. The high-temperature spray device transports water mist into the steam generating tube, and the high-temperature medium heats the steam generating tube to convert the water mist in the steam generating tube into steam. The diameter of the steam generating tube increases gradually along the direction of steam delivery. The problem of backflow due to the increase of expansion pressure in the process of water mist turning into steam is avoided. The gradual increase of pipe diameter makes the steam generation and transportation process smoother. The utility model has a fast reaction speed of steam generation. The flow rate allows the pressure to be adjusted, and it can be used immediately when it is turned on. Compared with traditional boilers, it can save energy by 20-30%, and the pipe diameter gradually increases to make the steam flow more smoothly along the flow direction, which is conducive to the generation of steam.

2. The steam generation tube is arranged in circles, which makes the heat conduction efficiency higher while reducing the space ratio; the steam pipe sections with different pipe diameters make the steam more and more effective during the process of gradually heating up along the flow direction of the steam generation tube. The large circulation space ensures the smoothness of steam flow.

3. By adjusting the temperature of the high-temperature medium, superheated steam or supercritical water can be directly generated as required.

4. When there is a lot of steam required, turn on the second high-pressure spray device to make the water mist form steam in the second steam generating tube to meet the use requirements.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of a high-temperature and low-pressure steam generator related to the present invention;

Fig. 2 is a schematic diagram of the three-dimensional structure of the utility model.

In the figure: reaction chamber 1, steam generating pipe 2, water mist circulation pipe 3, connecting pipe 4, heating device 5, electric heater 51.

Detailed ways

In order to further explain the technical solution of the present utility model, the specific examples are described in detail below.

As shown in Figures 1 and 2, a high-temperature and low-pressure steam generator of the present invention includes a reaction chamber 1, a high-temperature medium, and a steam generating tube 2 for generating steam; the high-temperature medium is arranged in the reaction chamber 1, and the steam The generating tube 2 is set in the high-temperature medium; the steam generating tube 2 is in contact with the high-temperature medium; it also includes a high-pressure spray device for outputting water mist to the steam generating tube 2; the diameter of the steam generating tube 2 gradually increases along the direction of steam delivery.

In this way, the high-temperature spraying device transports water mist into the steam generating tube 2, and the high-temperature medium heats the steam generating tube 2 to convert the water mist in the steam generating tube 2 into steam. The diameter of the steam generating tube 2 is along the direction of steam delivery. The gradually increasing setting avoids the problem of backflow caused by the increase of the expansion pressure of the water mist in the process of turning into steam. The gradual increase of the pipe diameter makes the steam generation and transportation process more smooth. The utility model has a fast reaction speed of steam generation. By adjusting the flow rate of the high-pressure spray device, the pressure can be adjusted, and it can be used immediately. Compared with traditional boilers, it can save energy by 20-30%, and the pipe diameter gradually increases to make the steam flow more smoothly along the flow direction, which is conducive to the generation of steam.

Preferably, the steam generating tubes 2 are arranged in a spiral manner. Preferably, the steam generation pipe 2 includes several steam pipe sections connected in sequence and with different pipe diameters; the pipe diameters of the steam pipes in each individual steam pipe section are equal, and the pipe diameters of several steam pipe sections increase sequentially along the steam flow direction . The steam generation tube is arranged in a circle, which reduces the space ratio and makes the heat conduction efficiency higher; the steam pipe sections with different pipe diameters make the steam gradually heat up along the flow direction of the steam generation tube 2. The circulation space ensures the fluency of steam flow; preferably, the steam generating tube includes a first steam tube, a second steam tube and a third steam tube; the second steam tube is connected between the first steam tube and the third steam tube During the period, the diameters of the first steam pipe, the second steam pipe and the third steam pipe increase sequentially; the first steam pipe section, the second steam pipe section and the third steam pipe section are all spirally arranged in the reaction chamber 1, and the first steam pipe The inner diameter of the steam pipe is equal from the steam input end to the steam output end, the inner diameter of the second steam pipe is equal from the steam input end to the steam output end, and the inner diameter of the third steam pipe is along the steam input end to the steam output end. Evenly equal, the diameter of the steam pipe of the third steam pipe is larger than that of the second steam pipe, and the diameter of the steam pipe of the second steam pipe is larger than that of the first steam pipe. Preferably, the output end of the steam generation pipe 2 is connected with the sub-cylinder. By dividing the cylinders, the steam generated can be used in many different places to meet the demand for steam usage.

Preferably, it also includes a water mist flow pipe 3 located in the high-temperature medium; a high-pressure spray device is arranged at one end of the water mist flow pipe 3, and the water mist flow pipe 3 is generated by connecting pipe 4 and steam on the side away from the high-pressure spray device. The pipes 2 are connected; the water mist circulation pipe 3 also includes the other end passing through the side wall of the reaction chamber 1 , and the end of the water mist circulation pipe 3 close to the connecting pipe 4 is provided with an end cap to seal the end of the water mist circulation pipe 3 . The water mist is input into the water mist circulation pipe 3 through the high-pressure spraying device, and the water mist advances a certain distance in the water mist circulation pipe 3 to diverge, and then enters the steam generation pipe 2 through the connecting pipe 4, which is beneficial for the water mist to form steam, and the water The other end of the mist circulation pipe 3 passes through the side wall of the reaction chamber 1 to improve the structural strength of the water mist circulation pipe 3 .

Preferably, a heating device 5 for heating the high-temperature medium is also included, and the heating device 5 includes a plurality of electric heaters 51 . The use of electric energy facilitates the heating of high-temperature media. Preferably, a plurality of electric heaters 51 are arranged vertically and arranged in a matrix. The heating effect of the electric heater 51 on the high-temperature medium is improved, and the high-temperature medium is heated to a predetermined temperature more quickly. Preferably, the high-temperature medium includes molten salt, and the heating temperature range of the molten salt is 150-1200°C. As a high-temperature medium, molten salt has a wide range of operating temperatures, volumetric heat capacity, stable physical and chemical properties, high energy transfer efficiency, and molten salt can store energy. During use, adjust the temperature of the electric heating rod to increase the temperature of the molten salt , can obtain steam at different temperatures, such as superheated steam or supercritical water, which is very suitable for the scene of using steam at different temperatures. More preferably, the heating temperature range of the molten salt is 185-600°C. Preferably, two steam generation pipes 2 and two high-pressure spray devices are respectively provided to meet the demand for steam use. At the same time, in order to make the process of steam generation smoother, the steam generation pipe 2 is equipped with a water mist circulation pipe 3; specifically, if one end of the water mist circulation pipe 3 is not sealed, it can be installed in the middle of the water mist circulation pipe 3. The connecting pipe 4 communicated with the steam generating pipe 2, and the high-pressure spraying device is respectively arranged at both ends of the water mist circulation pipe 3, so that the water mist enters from the two ends of the water mist circulation pipe 3, and enters the steam through the connecting pipe 4 in tube 2.

The product form of the present utility model is not limited to the illustrations and examples of this case, and anyone who makes appropriate changes or modifications of similar ideas to it should be considered as not departing from the patent category of the present utility model.

Claims (10)

1. A high temperature low pressure steam generator, characterized by: comprises a reaction chamber, a high-temperature medium and a steam generating pipe for generating steam; the high-temperature medium is arranged in the reaction chamber, and the steam generating pipe is arranged in the high-temperature medium; the steam generating pipe is contacted with the high-temperature medium; the high-pressure spraying device is used for outputting water mist to the steam generating pipe; the pipe diameter of the steam generating pipe is gradually increased along the conveying direction of the steam.

2. A high temperature low pressure steam generator as claimed in claim 1, wherein: the steam generating pipe is spirally arranged.

3. A high temperature low pressure steam generator as claimed in claim 2, wherein: the steam generating pipe comprises a plurality of steam pipe sections which are connected in sequence and have different pipe diameters; the pipe diameters of the steam pipes in each independent steam pipe section are equal, and the pipe diameters of a plurality of steam pipe sections are sequentially increased along the circulation direction of steam.

4. A high temperature low pressure steam generator according to claim 3, wherein: the steam generating pipe comprises a first steam pipe, a second steam pipe and a third steam pipe; the second steam pipe is connected between the first steam pipe and the third steam pipe, and the pipe diameters of the first steam pipe, the second steam pipe and the third steam pipe are sequentially increased.

5. A high temperature low pressure steam generator as claimed in claim 1, wherein: the output end of the steam generating pipe is connected with the branch cylinder.

6. A high temperature low pressure steam generator as claimed in claim 1, wherein: the water mist circulating pipe is arranged in the high-temperature medium; the high-pressure spraying device is arranged at one end of the water mist flow pipe, and the water mist flow pipe is communicated with the steam generation pipe through a connecting pipe at one side far away from the high-pressure spraying device; the water mist runner pipe further comprises the other end penetrating through the side wall of the reaction chamber, and an end cover is arranged at one end, close to the connecting pipe, of the water mist runner pipe to seal the end part of the water mist runner pipe.

7. A high temperature low pressure steam generator as claimed in claim 1, wherein: the heating device is used for heating the high-temperature medium and comprises a plurality of electric heaters.

8. A high temperature low pressure steam generator as defined in claim 7, wherein: the electric heaters are vertically arranged and are arranged in a matrix.

9. A high temperature low pressure steam generator as claimed in claim 1, wherein: the high-temperature medium comprises molten salt, and the heating temperature of the molten salt is in the range of 150-1200 ℃.

10. A high temperature low pressure steam generator as claimed in claim 1, wherein: the steam generating pipe and the high-pressure spraying device are respectively provided with two steam generating pipes and two high-pressure spraying devices.

Images