High temperature steam generator

Abstract

The present invention discloses a high-temperature steam generating device, comprising a primary heating chamber, wherein a first electromagnetic heating coil is provided on the outer wall of the primary heating chamber, and the device is characterized in that: a steam collecting pipe is provided in the middle of the primary heating chamber, and the steam collecting pipe is separated from the upper and lower parts by a plurality of arched discs to enclose a multi-stage steam generating chamber, a steam flow hole is provided between the steam generating chamber and the steam collecting pipe, and a water drop hole is provided near the outer edge of the arched disc, and a water spray pipe is further provided in the primary heating chamber, the water spray pipe is connected to the water inlet pipe, and the water spray pipe is located above the uppermost arched disc. The present invention can realize the simultaneous evaporation of saturated steam in the multi-stage steam generating chamber, with a fast steam exhaust speed and a large steam flow rate, and the secondary heating of saturated steam converts the saturated steam into high-temperature superheated steam with a high steam temperature; the water inlet flow rate is controlled by a variable frequency metering pump, and the primary heating chamber and the secondary heating chamber heat the water and the saturated steam respectively, so that the steam quantity and steam temperature are conveniently adjustable.

Description

Technical Field

[0001] The invention relates to a high-temperature steam generating device. Background Art

[0002] Steam is widely used in civil, industrial, and pharmaceutical sectors. Steam is generated by heating water. Existing steam generators, limited by their technical design, are unable to produce high-volume, high-temperature, high-pressure steam in a short period of time. They also suffer from shortcomings such as slow steam exhaust and low steam temperature. Applicants have devised numerous solutions, conducted trial production for many years, and applied for multiple patents, but the results have fallen short of expectations. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a high-temperature steam generating device that can achieve fast steam outlet speed, large steam flow, high steam temperature, and conveniently adjust the steam temperature and steam volume.

[0004] The present invention is accomplished by taking the following technical solutions:

[0005] A high-temperature steam generating device includes a primary heating chamber, and a first electromagnetic heating coil is arranged on the outer wall of the primary heating chamber. The device is characterized in that a steam collecting pipe is arranged in the middle of the primary heating chamber, and the steam collecting pipe is separated from the upper and lower parts by multiple layers of arched discs to form a multi-stage steam generating chamber. A steam flow hole is provided between the steam generating chamber and the steam collecting pipe, and a water droplet is provided near the outer edge of the arched disc. A water spray pipe is also provided in the primary heating chamber, and the water spray pipe is connected to the water inlet pipe. The water spray pipe is located above the uppermost arched disc.

[0006] The positions of the water holes on the upper and lower arched discs are staggered with each other.

[0007] The diameter of the water drain hole on the arched disc is larger at the top and smaller at the bottom.

[0008] The inclination angle of the arched disc is 6-10 degrees.

[0009] The water spray pipe is an annular water spray pipe.

[0010] The outer end of the arched disc is welded and fixed to the inner wall of the primary heating chamber, and the inner end of the arched disc is welded and fixed to the outer wall of the steam collecting pipe.

[0011] It also includes a secondary heating chamber, a second electromagnetic heating coil is arranged on the outer wall of the secondary heating chamber, the secondary heating chamber is connected to the heating steam output pipe, a primary steam nozzle is arranged in the middle of the secondary heating chamber, the primary steam nozzle is communicated with the steam collecting pipe through a steam circulation pipe, a multi-layer partition arranged up and down is arranged outside the primary steam nozzle, a primary steam nozzle hole is provided between the upper and lower partitions, and the primary steam nozzle hole is located on the primary steam nozzle.

[0012] After adopting the above technical solution, the present invention can achieve fast steam exhaust speed, large steam flow and high steam temperature. Its working principle is: first, the first electromagnetic heating coil is used to heat the primary heating bin at high temperature, and the water inlet of the water inlet pipe is dispersed and sprayed around the inner wall of the primary heating bin through the annular water spray pipe. The water flows along the inner wall of the primary heating bin to the uppermost arched disc and the inclined angle of the inner wall of the primary heating bin to heat and evaporate the steam. The excess water falls on the arched disc of the next layer through the water drop holes on the uppermost arched disc, and flows freely to the arched disc of the next layer and the inclined angle of the inner wall of the primary heating bin to heat and evaporate the steam. This is carried out in multiple stages, and the multi-layer arched discs form a multi-stage steam generating chamber, and the water drop holes on the arched discs The position and aperture design of the water ensure optimal evaporation. The water flow rate of the water inlet pipe is controlled by a variable frequency high-pressure metering pump, which adjusts the water flow rate. Combined with the heating power of the first electromagnetic heating coil, a large saturated steam flow rate can be generated (for example, with a power of 50 kW, the steam output can reach 85 kg / h, and the steam exhaust speed is fast, with saturated steam output within 3 minutes). If a high steam temperature is required, the second electromagnetic heating coil is used to heat the secondary heating chamber at high temperature. The steam in the steam manifold is ejected out of the primary steam nozzle through the primary steam nozzle pipe. After the primary saturated steam contacts the partition and the inner wall of the secondary heating chamber, it is converted into high-temperature steam. The temperature of the high-temperature steam can reach as high as 300 degrees Celsius (superheated steam). During the above process, the steam temperature and steam volume can be conveniently adjusted by regulating the power of the first and second electromagnetic heating coils and adjusting the water flow rate via the variable frequency high-pressure metering pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention has the following accompanying drawings:

[0014] Figure 1 It is a structural schematic diagram of the present invention,

[0015] Figure 2 for Figure 1 Enlarged view of the left half. DETAILED DESCRIPTION

[0016] As shown in the figure, the high-temperature steam generating device of the present invention includes a primary heating chamber 1 and a secondary heating chamber 10. The outer wall of the primary heating chamber 1 is provided with a first electromagnetic heating coil 2. A steam collecting pipe 8 is provided in the middle of the primary heating chamber 1. The steam collecting pipe 8 is separated from the upper and lower parts by fifteen layers of arched discs 3 to enclose a multi-stage steam generating chamber A. The inclination angle of the arched disc 3 is 8 degrees. The outer end of the arched disc 3 is welded and fixed to the inner wall of the primary heating chamber 1. The arched disc 3 and the primary heating chamber 1 are made of the same stainless steel material. In this way, when the first electromagnetic heating coil 2 is heated to the primary heating chamber 1, the steam generating chamber A is heated to the lower part of the primary heating chamber 1. When electric heating is performed, the arched disc 3 is also heated quickly, which is conducive to the rapid heating of water to generate steam. The inner end of the arched disc 3 is welded and fixed to the outer wall of the steam collecting pipe 8. A steam flow hole 5 is provided between the steam generating chamber A and the steam collecting pipe 8. The arched disc 3 is provided with a water drop hole 4 near the outer edge. There are twelve water drop holes 4 on each arched disc 3. The positions of the water drop holes on the upper and lower arched discs are staggered in the circumferential direction. The aperture of the water drop holes on the arched disc is larger at the top and smaller at the bottom (fifteen arched discs, from top to bottom, the top first The diameter of the water hole of the arched disc is 9.0 mm, the diameter of the water hole of the second arched disc is 8.5 mm, and the diameter decreases successively. The diameter of the water hole of the fifteenth arched disc at the bottom is 2.0 mm); an annular water spray pipe 6 is also provided in the primary heating chamber 1. The annular water spray pipe 6 is connected to the water inlet pipe 7. The annular water spray pipe 6 is located above the uppermost arched disc. When working, the water sprayed by the annular water spray pipe is dispersed and sprayed around the inner wall of the primary heating chamber 1. The water flows along the inner wall of the primary heating chamber 1 to the uppermost arched disc and the inclined angle of the inner wall of the primary heating chamber 1 for heating and evaporation. Steam, excess water falls onto the arched disc of the next layer through the water drop holes on the arched disc; a second electromagnetic heating coil 11 is provided on the outer wall of the secondary heating bin 10, the top of the secondary heating bin 10 is connected to the heating steam output pipe 15, a primary steam nozzle 12 is provided in the middle of the secondary heating bin 10, the primary steam nozzle 12 is communicated with the steam collecting pipe 8 through the steam circulation pipe 9, a multi-layer partition 13 arranged up and down is provided outside the primary steam nozzle 12, a primary steam nozzle hole 14 is provided between the upper and lower partitions 13, and the primary steam nozzle hole 14 is located on the primary steam nozzle 12.

Claims

1. A high-temperature steam generating device comprising a primary heating chamber, wherein the outer wall of the primary heating chamber is provided with a first electromagnetic heating coil, characterized in that: A steam collecting pipe is arranged in the middle of the primary heating chamber. The steam collecting pipe is separated from the upper and lower parts by multiple layers of arched discs to form a multi-stage steam generating chamber. Steam circulation holes are provided between the steam generating chamber and the steam collecting pipe. A water droplet hole is provided near the outer edge of the arched disc. A water spray pipe is also arranged in the primary heating chamber. The water spray pipe is connected to the water inlet pipe and is located above the uppermost arched disc.

2. The high-temperature steam generating device according to claim 1, wherein: The positions of the water holes on the upper and lower arched discs are staggered with each other.

3. The high-temperature steam generating device according to claim 2, wherein: The diameter of the water drain hole on the arched disc is larger at the top and smaller at the bottom.

4. The high-temperature steam generating device according to claim 1, 2 or 3, characterized in that: The inclination angle of the arched disc is 6-10 degrees.

5. The high-temperature steam generating device according to claim 1, wherein: The water spray pipe is an annular water spray pipe.

6. The high-temperature steam generating device according to claim 1, wherein: The outer end of the arched disc is welded and fixed to the inner wall of the primary heating chamber, and the inner end of the arched disc is welded and fixed to the outer wall of the steam collecting pipe.

7. The high-temperature steam generating device according to claim 1, wherein: It also includes a secondary heating chamber, a second electromagnetic heating coil is arranged on the outer wall of the secondary heating chamber, the secondary heating chamber is connected to the heating steam output pipe, a primary steam nozzle is arranged in the middle of the secondary heating chamber, the primary steam nozzle is communicated with the steam collecting pipe through a steam circulation pipe, a multi-layer partition arranged up and down is arranged outside the primary steam nozzle, a primary steam nozzle hole is provided between the upper and lower partitions, and the primary steam nozzle hole is located on the primary steam nozzle.

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