Steam recovery booster unit and method of boosting thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HANGZHOU ANGGUAN ENERGY SAVING TECHNOLOGY CO LTD
- Filing Date
- 2026-06-11
- Publication Date
- 2026-07-24
Smart Images

Figure FT_1 
Figure FT_2 
Figure FT_3
Abstract
Description
Technical Field
[0001] This invention relates to the field of steam recovery technology, specifically a steam recovery booster unit and its booster method. Background Technology
[0002] Garment processing involves multiple steps, including material preparation, cutting, sewing, ironing, and quality inspection. The ironing process, in particular, involves steam being output from a boiler and piped to an iron. After use, the steam is released, containing both high-temperature water vapor and small water droplets. The release site typically presents as a large area of white smoke and continuously dripping liquid water, posing a significant risk of burns to anyone approaching. Furthermore, the steam carries a large amount of heat, and direct release results in a waste of heat and energy. Recycling is a better solution. However, the high-temperature water vapor and small water droplets have different densities, making simultaneous recycling difficult. Separate recycling requires additional equipment and piping, leading to equipment complexity and reduced efficiency. Moreover, the small water droplets inevitably carry impurities from the pipes, such as rust. Recycling rust increases maintenance costs and can even damage the equipment. Therefore, how to efficiently recover used steam from the ironing process in garment processing while minimizing damage to the recycling equipment caused by impurities like rust has become a pressing issue for technical personnel. Summary of the Invention
[0003] To address the aforementioned technical problems, this invention provides a steam recovery booster unit and its booster method.
[0004] A steam recovery booster unit includes a main cylinder, characterized in that: a top cover is fixedly installed on the upper part of the main cylinder; a steam inlet pipe is installed on the lower part of one side of the main cylinder; a steam outlet pipe is installed on the upper part of the other side of the main cylinder; one-way valves are installed on the surfaces of both the steam inlet pipe and the steam outlet pipe; a lifting rod is slidably installed at the center of the top cover; a piston is installed inside the main cylinder; the piston is fixedly connected to the lifting rod; a through hole is vertically penetrating inside the piston; and a one-way valve is fixedly installed on the upper part of the piston at a position corresponding to the through hole.
[0005] Furthermore, the piston side is provided with a first lower retaining groove and a second lower retaining groove. There are two sets of the first lower retaining grooves. The second lower retaining groove is located between the first lower retaining grooves. A first lower sealing ring is provided inside the first lower retaining groove, and a second lower sealing ring is provided inside the second lower retaining groove. Both the first lower sealing ring and the second lower sealing ring slide against the inner wall of the main cylinder.
[0006] Furthermore, the piston's stroke is between the upper edge of the steam inlet pipe and the lower edge of the steam outlet pipe.
[0007] Furthermore, a first upper slot is provided on the lower side of the top cover, and a second upper slot is provided on the lower edge of the top cover. The opening direction of the first upper slot is horizontally outward, and the opening direction of the second upper slot is vertically downward. A first upper sealing ring is provided inside the first upper slot, and a second upper sealing ring is provided inside the second upper slot. Both the first and second upper sealing rings are tightly fitted to the main cylinder.
[0008] Furthermore, a third upper groove is provided on the inner wall surface of the center of the top cover, and a third upper sealing ring is provided inside the third upper groove. A third lower groove is provided on the lower side of the lifting rod, and a third lower sealing ring is provided inside the third lower groove. Both the third upper sealing ring and the third lower sealing ring are tightly fitted to the lifting rod.
[0009] Furthermore, a bottom cover is provided at the lower part of the main cylinder. The bottom cover is an integral structure with the main cylinder. The bottom cover is in the shape of an inverted cone. A drain pipe is provided at the bottom end of the bottom cover. A one-way valve is provided on the surface of the drain pipe.
[0010] Furthermore, a method for pressurizing a steam recovery booster unit is as follows: (1) Set the main cylinder vertically behind the garment processing ironing equipment, connect the steam inlet pipe to the exhaust pipe of the ironing equipment, connect the steam outlet pipe to the subsequent equipment, connect the upper end of the lifting rod to the power device such as the cylinder or hydraulic cylinder, and pre-fill the main cylinder with clean water so that the piston is immersed in clean water when it is at the lowest position of its stroke. (2) Open the steam inlet pipe, steam outlet pipe and one-way valve on the piston. The steam discharged from the exhaust pipe is introduced into the main cylinder and below the piston through the steam inlet pipe. The high temperature water vapor in the steam enters the piston above the piston through the one-way valve on the piston. The small water droplets in the steam are absorbed into the clean water below the piston and increase the water volume. The space below the piston is limited. The increased water enters the piston above the piston through the one-way valve on the piston. During the ironing process, the small water droplets inevitably carry the rust in the pipe. The rust is denser than water and settles directly to the bottom cover and does not enter the piston above the piston. (3) After steam is introduced for a certain period of time, the lifting rod and piston are pulled up as a whole by the power device. The piston drives the clean water above it to move up and pressurizes the high temperature steam above it until it reaches the highest position of its stroke. At this time, the clean water above the piston enters the subsequent equipment through the steam outlet pipe, and the high temperature steam above the piston enters the subsequent equipment quickly through the steam outlet pipe in a pressurized state. (4) The piston returns to its original position and continues the above process of introducing, pressurizing and discharging, so that the steam emitted by the garment ironing equipment can be continuously recovered. (5) The recycled high-temperature steam and clean water can be heated to the required temperature and reused for ironing clothes, or the recycled high-temperature steam can be used to heat clean water for production and daily life needs, thereby saving energy; (6) After running for a period of time, some rust has accumulated at the bottom of the cover. Open the one-way valve on the drain pipe to discharge the rust and the water that may be contaminated nearby.
[0011] The beneficial effects of the steam recovery booster unit and its booster method of the present invention are as follows: 1. Each one-way valve provides a good structural basis for the unidirectional flow of steam within the unit. Simply move the lifting rod upwards to compress the main cylinder space above it through the piston, pressurizing the steam in that space and allowing it to be discharged through the steam outlet pipe for direct use or further processing. In this way, there is no need to add equipment or pipelines. The unidirectional flow prevents the steam from "wandering" in the main cylinder, and the pressurization improves the steam flow efficiency, thus achieving efficient recovery of steam used in the garment processing ironing process. 2. The inverted conical design of the bottom cover provides a good structural foundation for the collection of small water droplets in the steam and the impurities they inevitably carry, such as rust. The piston can be immersed in the upper layer of clean water after the impurities have settled, which not only allows the impurities in the steam, such as rust, to be discharged smoothly, but also avoids the impurities from damaging the recovery equipment. 3. The first upper sealing ring and the second upper sealing ring effectively ensure the airtightness of the connection between the top cover and the main cylinder. The first lower sealing ring and the second lower sealing ring effectively ensure the airtightness between the piston and the main cylinder. The third upper sealing ring and the third lower sealing ring effectively ensure the airtightness between the top cover, the piston and the lifting rod. This effectively avoids air leakage and provides a good structural foundation for the smooth pressurization of the space above the piston. 4. The piston stroke is limited to between the upper edge of the steam inlet pipe and the lower edge of the steam outlet pipe, which effectively avoids the first and second lower sealing rings from rubbing against the openings of the steam inlet and steam outlet pipes, thereby effectively extending the service life of the first and second lower sealing rings and the machine unit. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below, but this is not a limitation on the scope of protection of the present invention.
[0013] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a cross-sectional structural diagram (I) of the present invention; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 for Figure 2 A magnified view of a section at point B in the middle; Figure 5 This is a cross-sectional structural schematic diagram (II) of the present invention; Figure 6 for Figure 5 A magnified view of a section at point C; Figure 7 for Figure 5 A magnified view of a section at point D; Figure 8 This is an enlarged schematic diagram of the piston structure of the present invention.
[0014] Among them, 1-lifting rod, 2-top cover, 3-main cylinder, 4-steam inlet pipe, 5-sewage pipe, 6-steam outlet pipe, 7-bottom cover, 8-third upper sealing ring, 9-first upper sealing ring, 10-second upper sealing ring, 11-one-way valve, 12-first lower sealing ring, 13-second lower sealing ring, 14-piston, 15-third lower sealing ring, 16-second upper slot, 17-first upper slot, 18-third upper slot, 19-second lower slot, 20-first lower slot, 21-third lower slot. Detailed Implementation
[0015] To make the description clearer, a steam recovery booster unit and its booster method according to the present invention will be further described in conjunction with the accompanying drawings.
[0016] A steam recovery booster unit includes a main cylinder 3, characterized in that: a top cover 2 is fixedly installed on the upper part of the main cylinder 3; a steam inlet pipe 4 is installed on the lower part of one side of the main cylinder 3; a steam outlet pipe 6 is installed on the upper part of the other side of the main cylinder 3; a one-way valve 11 is installed on the surface of both the steam inlet pipe 4 and the steam outlet pipe 6; a lifting rod 1 is slidably installed at the center of the top cover 2; a piston 14 is installed inside the main cylinder 3; the piston 14 is fixedly connected to the lifting rod 1; a through hole is vertically penetrating inside the piston 14; and a one-way valve 11 is fixedly installed on the upper part of the piston 14 at a position corresponding to the through hole.
[0017] Furthermore, the piston 14 is provided with a first lower retaining groove 20 and a second lower retaining groove 19 on its side. There are two sets of the first lower retaining groove 20. The second lower retaining groove 19 is located between the first lower retaining grooves 20. A first lower sealing ring 12 is provided inside the first lower retaining groove 20. A second lower sealing ring 13 is provided inside the second lower retaining groove 19. Both the first lower sealing ring 12 and the second lower sealing ring 13 are slidably attached to the inner wall of the main cylinder 3.
[0018] Furthermore, the stroke of the piston 14 is between the upper edge of the steam inlet pipe 4 and the lower edge of the steam outlet pipe 6.
[0019] Furthermore, a first upper groove 17 is provided on the lower side of the top cover 2, and a second upper groove 16 is provided on the lower edge of the top cover 2. The opening direction of the first upper groove 17 is horizontally outward, and the opening direction of the second upper groove 16 is vertically downward. A first upper sealing ring 9 is provided inside the first upper groove 17, and a second upper sealing ring 10 is provided inside the second upper groove 16. Both the first upper sealing ring 9 and the second upper sealing ring 10 are tightly fitted to the main cylinder 3.
[0020] Furthermore, a third upper groove 18 is provided on the inner wall surface of the center of the top cover 2, and a third upper sealing ring 8 is provided inside the third upper groove 18. A third lower groove 21 is provided on the lower side of the lifting rod 1, and a third lower sealing ring 15 is provided inside the third lower groove 21. Both the third upper sealing ring 8 and the third lower sealing ring 15 are tightly fitted to the lifting rod 1.
[0021] Furthermore, a bottom cover 7 is provided at the lower part of the main cylinder 3. The bottom cover 7 is an integral structure with the main cylinder 3. The bottom cover 7 is in the shape of an inverted cone. A drain pipe 5 is provided at the bottom end of the bottom cover 7. A one-way valve 11 is provided on the surface of the drain pipe 5.
[0022] Furthermore, a method for pressurizing a steam recovery booster unit is as follows: (1) The main cylinder 3 is set vertically behind the garment processing ironing equipment. The steam inlet pipe 4 is connected to the exhaust pipe of the ironing equipment, the steam outlet pipe 6 is connected to the subsequent equipment, and the upper end of the lifting rod 1 is connected to the power device such as the cylinder or hydraulic cylinder. Clean water is pre-filled into the main cylinder 3 so that the piston 14 is immersed in clean water when it is at the lowest position of its stroke. (2) Open the steam inlet pipe 4, the steam outlet pipe 6, and the one-way valve 11 on the piston 14. The steam discharged from the exhaust pipe is introduced into the main cylinder 3 and below the piston 14 through the steam inlet pipe 4. The high-temperature water vapor in the steam enters the piston 14 above the piston 14 through the one-way valve 11 on the piston 14. The small water droplets in the steam are integrated into the clean water below the piston 14 and increase the water volume. The space below the piston 14 is limited. The increased water enters the piston 14 above the piston 14 through the one-way valve 11 on the piston 14. During the ironing process, the small water droplets inevitably carry the rust in the pipe. The rust is denser than water and sinks directly to the bottom cover 7 instead of entering the piston 14 above the piston. (3) After steam is introduced for a certain period of time, the lifting rod 1 and piston 14 are pulled up as a whole by the power device. The piston 14 drives the clean water above it to move up and pressurizes the high temperature steam above it until it reaches the highest position of its stroke. At this time, the clean water above the piston 14 enters the subsequent equipment through the steam outlet pipe 6, and the high temperature steam above the piston 14 enters the subsequent equipment quickly through the steam outlet pipe 6 in a pressurized state. (4) Piston 14 returns to its original position and continues the above-mentioned process of introducing, pressurizing and discharging steam, so that the steam emitted by the garment ironing equipment can be continuously recovered. (5) The recycled high-temperature steam and clean water can be heated to the required temperature and reused for ironing clothes, or the recycled high-temperature steam can be used to heat clean water for production and daily life needs, thereby saving energy; (6) After running for a period of time, some rust has accumulated on the bottom of the cover 7. Open the one-way valve 11 on the drain pipe 5 to discharge the rust and the water that may be contaminated nearby.
[0023] The working principle of the steam recovery booster unit and its booster method of the present invention is as follows: by performing the above steps (1)-(6), the steam used in the ironing process of garment processing can be efficiently recovered.
[0024] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions conceived without inventive effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.
Claims
1. A steam recovery booster unit, comprising a main cylinder, characterized in that: A top cover is fixedly installed on the upper part of the main cylinder. A steam inlet pipe is installed on the lower part of one side of the main cylinder, and a steam outlet pipe is installed on the upper part of the other side of the main cylinder. One-way valves are installed on the surface of both the steam inlet pipe and the steam outlet pipe. A lifting rod is slidably installed at the center of the top cover. A piston is installed inside the main cylinder. The piston is fixedly connected to the lifting rod. A through hole is vertically penetrating inside the piston. A one-way valve is fixedly installed on the upper part of the piston at the position corresponding to the through hole.
2. The steam recovery booster unit according to claim 1, characterized in that, The piston side is provided with a first lower retaining groove and a second lower retaining groove. There are two sets of the first lower retaining grooves. The second lower retaining groove is located between the first lower retaining grooves. A first lower sealing ring is provided inside the first lower retaining groove, and a second lower sealing ring is provided inside the second lower retaining groove. Both the first lower sealing ring and the second lower sealing ring slide against the inner wall of the main cylinder.
3. The steam recovery booster unit according to claim 1, characterized in that, The piston's stroke is between the upper edge of the steam inlet pipe and the lower edge of the steam outlet pipe.
4. The steam recovery booster unit according to claim 1, characterized in that, The lower side of the top cover is provided with a first upper slot, and the lower edge of the top cover is provided with a second upper slot. The opening direction of the first upper slot is horizontally outward, and the opening direction of the second upper slot is vertically downward. A first upper sealing ring is provided inside the first upper slot, and a second upper sealing ring is provided inside the second upper slot. Both the first upper sealing ring and the second upper sealing ring are tightly fitted to the main cylinder.
5. A steam recovery booster unit according to claim 1, characterized in that, The inner wall surface at the center of the top cover is provided with a third upper groove, and a third upper sealing ring is provided inside the third upper groove. The lower side of the lifting rod is provided with a third lower groove, and a third lower sealing ring is provided inside the third lower groove. Both the third upper sealing ring and the third lower sealing ring are tightly fitted to the lifting rod.
6. A steam recovery booster unit according to claim 1, characterized in that, The main cylinder is provided with a bottom cover at its lower part. The bottom cover is an integral structure with the main cylinder. The bottom cover is in the shape of an inverted cone. A drain pipe is provided at the bottom end of the bottom cover. A one-way valve is provided on the surface of the drain pipe.
7. A steam recovery booster unit according to claim 1, characterized in that, The pressurization method is as follows: (1) Set the main cylinder vertically behind the garment processing ironing equipment, connect the steam inlet pipe to the exhaust pipe of the ironing equipment, connect the steam outlet pipe to the subsequent equipment, connect the upper end of the lifting rod to the power device such as the cylinder or hydraulic cylinder, and pre-fill the main cylinder with clean water so that the piston is immersed in clean water when it is at the lowest position of its stroke. (2) Open the steam inlet pipe, steam outlet pipe and one-way valve on the piston. The steam discharged from the exhaust pipe is introduced into the main cylinder and below the piston through the steam inlet pipe. The high temperature water vapor in the steam enters the piston above the piston through the one-way valve on the piston. The small water droplets in the steam are absorbed into the clean water below the piston and increase the water volume. The space below the piston is limited. The increased water enters the piston above the piston through the one-way valve on the piston. During the ironing process, the small water droplets inevitably carry the rust in the pipe. The rust is denser than water and settles directly to the bottom cover and does not enter the piston above the piston. (3) After steam is introduced for a certain period of time, the lifting rod and piston are pulled up as a whole by the power device. The piston drives the clean water above it to move up and pressurizes the high temperature steam above it until it reaches the highest position of its stroke. At this time, the clean water above the piston enters the subsequent equipment through the steam outlet pipe, and the high temperature steam above the piston enters the subsequent equipment quickly through the steam outlet pipe in a pressurized state. (4) The piston returns to its original position and continues the above process of introducing, pressurizing and discharging, so that the steam emitted by the garment ironing equipment can be continuously recovered. (5) The recycled high-temperature steam and clean water can be heated to the required temperature and reused for ironing clothes, or the recycled high-temperature steam can be used to heat clean water for production and daily life needs, thereby saving energy; (6) After running for a period of time, some rust has accumulated at the bottom of the cover. Open the one-way valve on the drain pipe to discharge the rust and the water that may be contaminated nearby.