Constant-pressure spiral steam recovery device

Abstract

The invention relates to the field of steam recovery, in particular to a constant-pressure spiral steam recovery device which solves the problem that water absorbing heat is inconvenient to use directly and comprises a shell, a steam pipe is arranged on the shell in the vertical direction in a penetrating mode, a liquid inlet pipe is arranged above the shell, and an upper plate body is rotationally arranged on the periphery, close to the upper portion, of the steam pipe. A plurality of upper liquid through holes are formed in the upper plate body, a liquid through pipe is arranged below the upper liquid through holes, the liquid through pipe is tightly attached to the peripheral side of the steam pipe, a heat conduction part is arranged on the inner side of the liquid through pipe, a lower plate body is slidably arranged on the peripheral side of the steam pipe close to the lower portion in the vertical direction, a plurality of lower liquid through holes are formed in the lower plate body, and the lower liquid through holes are connected with the ends, away from the upper liquid through holes, of the liquid through pipe. A liquid outlet pipe is connected below the lower plate body, a fixing plate is arranged on the periphery of the steam pipe and located below the lower plate body, an elastic piece is arranged between the fixing plate and the lower plate body, the liquid outlet pipe is fixedly connected with the fixing plate, and the end, away from the lower plate body, of the liquid outlet pipe extends out of the shell. According to the invention, the rising temperature of cold water in the liquid supply pipe within a certain time can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of steam recovery, and in particular to a constant pressure steam spiral recovery device. Background Art

[0002] A large amount of steam is generated during industrial production. Steam contains a large amount of heat energy and some chemical substances. If it is directly discharged into the atmosphere, a large amount of heat energy and water resources will be wasted, and some of the chemical substances will also have a certain impact on the environment. Therefore, the steam needs to be recovered and processed.

[0003] At present, a steam recovery device uses the heat energy of steam to heat cold water. Specifically, a cold water pipe is arranged around the steam pipe. When the steam passes through the steam pipe, the heat is transferred to the cold water in the cold water pipe, so that the cold water is heated. After the cold water is heated, it can be used for other purposes, thereby realizing the reuse of heat energy. The steam after heat exchange will cool down and condense, and can be collected as water resources. After searching, the Chinese utility model patent with announcement number CN210801118U discloses a fuel steam generator capable of waste heat recovery, including a support frame, a support bottom plate is installed on the support frame, and an insulation water tank is installed on the top of the support bottom plate. The side top of the insulation water tank The end of the support frame is connected with a liquid outlet pipe, a fixing plate is installed on the top of the fixing plate, a steam generator body is installed on the top of the fixing plate, an inner cylinder is installed in the steam generator body, a heat absorbing pipe is wound around the outer wall of the inner cylinder, one end of the heat absorbing pipe is sealed and connected with one end of the liquid outlet pipe, the other end of the heat absorbing pipe is sealed and connected with a water inlet interface, and a water inlet valve is connected to the water inlet interface; according to the utility model, the water inlet valve is adjusted to slowly transport water into the heat absorbing pipe, the water in the heat absorbing pipe can absorb the residual temperature of the inner cylinder, which can not only realize the rapid cooling of the inner cylinder, but also make full use of the residual temperature, and the generated warm water is stored in the thermal insulation water tank, so that the hot water can be used for other equipment.

[0004] Although the device can heat the water in the heat-absorbing tube for reuse, it cannot control the temperature of the water after absorbing heat. Some other equipment have certain requirements on the water temperature when using water. If it is to be used, the water after absorbing heat needs to be heated or cooled again. That is, the water after absorbing heat cannot be used directly through the device.

[0005] Therefore, the present invention provides a constant pressure steam spiral recovery device to solve the above problems. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a constant pressure steam spiral recovery device, and the problem to be solved is: to provide a constant pressure steam spiral recovery device that can control the temperature of water after reheating using steam thermal energy, so that it can be directly used in other equipment.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] The steam pipe is connected with the steam generator set in the vertical direction, and the steam inlet pipe is connected with the steam generator set at the bottom of the steam generator set, and the steam inlet pipe is connected with the steam generator set at the bottom of the steam generator set.

[0009] Preferably, the circumferential side of the upper plate body is sealed and rotatably connected to the shell, and the portion of the steam pipe located above the upper plate body and the upper plate body are both made of heat-insulating material.

[0010] Preferably, a plurality of upper liquid holes are arranged at equal intervals along the circumference near the inner side of the upper plate body, an upper limit plate is provided below the upper plate body, the upper limit plate is annular, and the inner side is close to the liquid tube, a plurality of lower liquid holes are arranged at equal intervals along the circumference near the inner side of the lower plate body, a lower limit plate is provided above the lower plate body, the lower limit plate is annular, and the inner side is close to the liquid tube.

[0011] Preferably, balls are provided on the inner sides of the upper limit plate and the lower limit plate, and the balls are closely attached to the liquid passage pipe.

[0012] Preferably, an annular groove is provided on the steam pipe, and a connecting mechanism is provided between the annular groove and the liquid pipe, and the connecting mechanism includes a slider slidably arranged in the annular groove, a universal ball is provided on the slider, and a clamp is connected to the universal ball, the inner diameter of the clamp is adapted to the outer diameter of the liquid pipe, and the clamp can slide and rotate relative to the liquid pipe.

[0013] Preferably, the control mechanism includes an annular rack arranged on the upper plate body, the annular rack is meshingly connected with a gear, the gear is connected to a motor, the motor is electrically connected to a controller, and a support plate is provided between the motor and the shell.

[0014] Preferably, a liquid storage cavity is provided below the lower plate body, the liquid storage cavity is connected with the liquid through-hole, the liquid outlet pipe is connected with the liquid storage cavity, the liquid outlet pipe is fixedly connected with the fixed plate, and the part between the fixed plate and the liquid storage cavity adopts a telescopic structure.

[0015] Preferably, the liquid storage chamber is made of heat insulating material.

[0016] Preferably, two ends of the elastic member are connected to the liquid storage chamber and the fixing plate respectively.

[0017] Preferably, a connecting support frame is provided on the peripheral side of the shell.

[0018] The beneficial effects of the present invention are:

[0019] 1. In the present invention, steam is transported through a steam pipe, and cold water is transported through a liquid pipe. The liquid pipe is arranged on the surface of the steam pipe. When in use, a certain amount of cold water is first introduced into the liquid pipe, and then a certain amount of steam is introduced through the steam pipe. When the steam flows through the steam pipe, the liquid pipe absorbs the heat of the steam through the heat conduction part, thereby reusing the heat generated by the steam. Finally, the steam is cooled and condensed into liquid water, which is discharged and collected separately. The cold water heated in the liquid pipe is discharged through the liquid outlet pipe and can be used for other equipment, thereby realizing heat energy and reuse, and avoiding pollution caused by chemical substances in the steam, which is environmentally friendly.

[0020] 2. In the present invention, when the upper plate body is controlled to rotate, the upper end of the liquid pipe is driven to rotate, and at the same time, the lower end of the liquid pipe and the lower plate body are driven to move in the vertical direction, and remain stable under the action of the elastic member, thereby changing the winding mode of the liquid pipe and the overall pipe, changing the contact area between the heat-conducting part of the liquid pipe and the steam pipe, and changing the heat absorption rate of the liquid pipe under the condition of a certain time, thereby controlling the temperature of the cold water in the liquid pipe to rise within a certain period of time. It can be flexibly adjusted according to the needs of other equipment, so that the heated cold water can be directly used for other equipment without the need for other treatments of the heated cold water, which is convenient to use.

[0021] 3. The liquid-passing pipe in the present invention includes a heat-conducting part, through which heat is absorbed, and the remaining part is a heat-insulating part, which can play a certain role in heat preservation of the heated cold water, thereby improving the utilization rate of heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the housing in the present invention;

[0024] Figure 3 It is a schematic diagram of the connection relationship between the liquid-passing pipe and the upper plate body and the lower plate body in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the lower limit plate, the lower plate body and the liquid storage cavity in the present invention;

[0026] Figure 5It is a structural schematic diagram of the control mechanism in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the upper liquid-through hole in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the annular groove, the liquid passage pipe and the connecting mechanism in the present invention;

[0029] Figure 8 It is a schematic structural diagram of the heat-conducting portion of the liquid-through pipe in the present invention.

[0030] In the figure: 1. steam pipe, 2. liquid inlet pipe, 3. shell, 4. liquid outlet pipe, 5. upper liquid hole, 6. upper plate, 7. upper limit plate, 8. annular slide, 9. liquid pipe, 901. heat transfer part, 10. slide, 11. lower limit plate, 12. lower plate, 13. liquid storage chamber, 14. fixed plate, 15. elastic member, 16. lower liquid hole, 17. ball, 18. annular rack, 19. gear, 20. support plate, 21. motor, 22. universal ball, 23. clamp, 24. slider. DETAILED DESCRIPTION

[0031] The following will refer to the attached Figures 1 to 8 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0032] Embodiment 1

[0033] A constant pressure steam spiral recovery device, as shown in the attached Figure 1 As shown, it includes a vertically placed hollow shell 3, a steam pipe 1 is vertically penetrated on the shell 3, the upper and lower ends of the steam pipe 1 are used to connect to corresponding pipelines for air intake and exhaust, a liquid inlet pipe 2 is provided above the shell 3, and a liquid outlet pipe 4 is provided below the shell 3, the liquid inlet pipe 2 and the liquid outlet pipe 4 are used to connect to corresponding pipelines for liquid intake and exhaust, this part is the existing technology, and no further elaboration is made here.

[0034] As attached Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8As shown, an upper plate body 6 is provided near the upper rotation side of the steam pipe 1 located in the shell 3, and a control mechanism for controlling the rotation of the upper plate body 6 is provided. A plurality of upper liquid holes 5 are provided on the upper plate body 6, and a liquid pipe 9 is provided below the upper liquid holes 5. The liquid pipe 9 is made of a flexible material and can be subjected to a certain degree of twisting and deformation. The upper liquid holes 5 are used to receive the cold water discharged from the liquid inlet pipe 2 and discharge the cold water into the liquid pipe 9. The liquid pipe 9 is closely attached to the side of the steam pipe 1. A heat conducting portion 901 is provided on the inner side of the liquid pipe 9, that is, the liquid pipe 9 includes a heat conducting portion 901 and a heat insulating portion. Specifically, the heat conducting portion 901 can refer to the attached Figure 8 As shown, the liquid pipe 9 contacts the steam pipe 1 through the heat conducting part 901, so that the heat of the steam pipe 1 can be absorbed and transferred to the interior of the liquid pipe 9. The interior can be kept warm to a certain extent by the heat insulating part. A lower plate 12 is provided near the bottom of the steam pipe 1 and slides in the vertical direction. Specifically, a slide 10 is also provided in the shell 3, and the lower plate 12 is also slidably provided on the slide 10. The slide 10 assists the lower plate 12 to move in the vertical direction. A plurality of lower liquid holes 16 are provided on the lower plate 12, and the lower liquid holes 16 are connected to the end of the liquid pipe 9 away from the upper liquid hole 5. A liquid outlet pipe 4 is connected to the lower part of the lower plate body 12. The liquid outlet pipe 4 is used to receive the heated cold water discharged from the liquid pipe 9 and discharge the heated cold water. A fixing plate 14 is provided on the periphery of the steam pipe 1 below the lower plate body 12. An elastic member 15 is provided between the fixing plate 14 and the lower plate body 12. Specifically, the elastic member 15 can be directly a spring. The liquid outlet pipe 4 is fixedly connected to the fixing plate 14, and one end away from the lower plate body 12 extends out of the shell 3. When working, the spiral winding mode of the liquid pipe 9 on the steam pipe 1 is changed by changing the relative position of the upper plate body 6 and the lower plate body 12.

[0035] During specific use, the lower end of the liquid inlet pipe 2 is connected to each upper liquid through hole 5 through a certain connecting pipe, and the upper end of the liquid outlet pipe 4 is connected to each lower liquid through hole 16 through a certain connecting pipe, and the upper end of the liquid inlet pipe 2 is connected to the liquid delivery pipe and a one-way valve is provided, the lower end of the liquid outlet pipe 4 is connected to the discharge pipe and a one-way valve is provided, the upper end of the steam pipe 1 is connected to the gas delivery pipe and a one-way valve is provided, the lower end of the steam pipe 1 is connected to the exhaust pipe and a one-way valve is provided, and a constant pressure gas supply system is provided at the same time, which can supply gas to the steam pipe 1 at a constant pressure; during operation, a certain amount of cold water is first input into the liquid through pipe 9 through the liquid inlet pipe 2, so that the cold water stays in the liquid through pipe 9 in advance, and then a certain amount of steam is introduced into the steam pipe 1 and discharged, so that the steam stays in the steam pipe 1 for a certain time. During this time period, the heat of the steam is transferred to the heat conduction part 901 of the steam pipe 1 and the liquid through pipe 9. The cold water in the liquid pipe 9 can then be discharged after the heating. When the temperature of the cold water after heating needs to be adjusted, the upper plate body 6 is controlled to rotate, and the upper plate body 6 drives the upper end of the liquid pipe 9 to rotate. Since the lower end of the liquid pipe 9 is connected to the lower liquid hole 16 of the lower plate body 12, the lower end of the liquid pipe 9 and the lower plate body 12 cannot rotate. When the upper plate body 6 rotates, the lower end of the liquid pipe 9 and the lower plate body 12 move in the vertical direction, thereby changing the winding method of the liquid pipe 9 on the steam pipe 1, and under the action of the elastic member 15, the liquid pipe 9 is subjected to force at both ends and can maintain balance, thereby changing the contact area between the heat conducting part 901 of the liquid pipe 9 and the steam pipe 1, changing the heat transfer rate, and then changing and controlling the temperature of the cold water after heating in the liquid pipe 9, so that it is convenient to be directly used in other equipment.

[0036] In addition, it should be noted that in this embodiment, the connection between the two ends of the liquid pipe 9 and the corresponding liquid holes should be fixedly connected, so that the liquid pipe 9 can be twisted when it is wrapped around the steam pipe 1, so that the heat conducting parts 901 of different areas are in contact with the steam pipe 1, thereby changing the heat transfer rate.

[0037] In addition, it should be noted that, in actual operation, this embodiment needs to be equipped with a corresponding electronic control system to control the inlet and outlet of gas and liquid, and a temperature sensor can be set in the liquid pipe 9 to detect the temperature in the liquid pipe 9.

[0038] In addition, it should be noted that, in actual operation, before the present embodiment is put into operation, the position of the upper plate 6 can be adjusted multiple times, and the real-time temperature can be detected by a temperature sensor, and finally it can be debugged to the required state before use. It should be noted that, in the present embodiment, after each discharge of heated cold water, the entire device needs to be stationary for a certain period of time, and the temperature of the entire device can be restored to its initial state before the next operation can be carried out. A temperature sensor can also be arranged in the steam pipe 1, and the next operation can be carried out when it is detected that the temperature in the steam pipe 1 and the liquid pipe 9 has returned to its initial state, thereby ensuring accurate control of the temperature of the heated cold water.

[0039] In addition, it should be noted that the liquid pipe 9 in this embodiment includes a heat conducting part 901, and the rest is a heat insulating part. Heat is absorbed through the heat conducting part 901, and the heat insulating part can play a certain role in heat preservation of the heated cold water, thereby preventing heat loss and improving the utilization rate of heat. In this embodiment, heat conduction is carried out through multiple liquid pipes 9, and the heat conduction of the entire cold water is also relatively uniform.

[0040] In addition, it should be noted that the principle in this embodiment is to change the heat transfer rate by changing the contact between the heat conducting part 901 of different areas and the steam pipe 1. In addition to setting the heat conducting part 901 and the heat insulating part, the entire liquid pipe 9 can also be set as the heat conducting part. When changing the winding method of the liquid pipe 9, the contact area with the steam pipe 1 will also be slightly changed. This structure can also be adjusted, but the adjustment range is relatively small.

[0041] Embodiment 2

[0042] As attached Figure 2 As shown, the difference from the first embodiment is that, in this embodiment, the upper plate body 6 is sealed and rotatably connected to the shell body 3 on the periphery, and is sealed and rotatably connected to the steam pipe 1 on the inner side. The steam pipe 1 is located above the upper plate body 6 and the upper plate body 6 are both made of heat-insulating materials. In this embodiment, the connecting pipe between the liquid inlet pipe 2 and the upper liquid hole 5 can be omitted. By utilizing the space at the top of the shell body 3, the cold water through the liquid inlet pipe 2 can be directly discharged into the liquid pipe 9, and the space at the top of the shell body 3 can store some cold water, thereby increasing the water storage space and making it more flexible to use.

[0043] As attached Figure 2 , Figure 3 , Figure 4 , Figure 6 As shown, the difference from the first embodiment is that, in this embodiment, a number of upper liquid holes 5 are arranged at equal intervals along the circumference near the inner side of the upper plate body 6, the lower end of the liquid tube 9 is fixedly connected to the lower liquid hole 16, an upper limit plate 7 is provided below the upper plate body 6, the upper limit plate 7 is annular, and the inner side is close to the liquid tube 9, and a number of lower liquid holes 16 are arranged at equal intervals along the circumference near the inner side of the lower plate body 12, and a lower limit plate 11 is provided above the lower plate body 12, the lower limit plate 11 is annular, and the inner side is close to the liquid tube 9. In this embodiment, when the liquid tube 9 is twisted and deformed, the limiting effect of the upper limit plate 7 and the lower limit plate 11 can assist the liquid tube 9 to be close to the steam pipe 1, thereby ensuring the heat conduction effect.

[0044] As attached Figure 2 , Figure 4 As shown, the difference from the first embodiment is that in this embodiment, the inner sides of the upper limit plate 7 and the lower limit plate 11 are both provided with balls 17, and the balls 17 are closely attached to the liquid passage 9, wherein the arrangement of the balls 17 in the lower limit plate 11 can refer to the attached Figure 4The ball 17 in the upper limit plate 7 is the same. In this embodiment, by providing the ball 17, the friction between the liquid pipe 9 and the limit plate can be reduced when the liquid pipe 9 moves relative to the steam pipe 1, so that the liquid pipe 9 can move normally without affecting the limiting function of the limit plate.

[0045] As attached Figure 2 , Figure 7 As shown, the difference from the first embodiment is that in this embodiment, an annular groove 8 is provided on the steam pipe 1, and the annular groove 8 is a groove. A connecting mechanism is provided between the annular groove 8 and the liquid pipe 9, and the connecting mechanism includes a slider 24 slidably arranged in the annular groove 8, and a universal ball 22 is provided on the slider 24. The universal ball 22 is connected to a clamp 23, and the inner diameter of the clamp 23 is adapted to the outer diameter of the liquid pipe 9, and can slide and rotate relative to the liquid pipe 9. The clamp 23 can play a certain limiting role on the liquid pipe 9, and when the liquid pipe 9 moves, the slider 24 and the universal ball 22 can drive the clamp 23 to make adaptive movements. In addition, it should be noted that the clamp 23 in this embodiment can be adapted to the outer diameter of the liquid pipe 9, and can be an arc structure equivalent to the outer diameter of the liquid pipe 9, or can be an annular structure slightly larger than the outer diameter of the liquid pipe 9, which plays a certain limiting role on the liquid pipe 9, thereby assisting the liquid pipe 9 to be close to the steam pipe 1.

[0046] As attached Figure 2 , Figure 5 As shown, the difference from the first embodiment is that the control mechanism in this embodiment includes an annular rack 18 arranged on the upper plate body 6. Specifically, the annular rack 18 is arranged below the upper plate body 6, the annular rack 18 is meshingly connected with a gear 19, the gear 19 is connected to a motor 21, the motor 21 is electrically connected to a controller, and a support plate 20 is provided between the motor 21 and the shell 3. When adjusting the rotation of the upper plate body 6, it is only necessary to control the rotation of the motor 21 through the controller, which is easy to operate. In this embodiment, the rotating shaft of the motor 21 is passed through the shell 3, and the motor 21 and the support plate 20 are arranged outside the shell 3 for easy maintenance.

[0047] As attached Figure 2 , Figure 4 As shown, the difference from the first embodiment is that in this embodiment, a liquid storage chamber 13 is provided below the lower plate body 12, the liquid storage chamber 13 is made of heat insulating material, the two ends of the elastic member 15 are respectively connected to the liquid storage chamber 13 and the fixed plate 14, the liquid storage chamber 13 is connected to the liquid through pipe 9 through the lower liquid through hole 16, the liquid outlet pipe 4 is connected to the liquid storage chamber 13, the liquid outlet pipe 4 is fixedly connected to the fixed plate 14, and the part between the fixed plate 14 and the liquid storage chamber 13 adopts a telescopic structure. In this embodiment, the liquid storage chamber 13 is provided to store some cold water, and with the structure on the top of the shell 3, more cold water can be pre-input, which is more convenient to use.

[0048] During specific use, first, the upper end of the liquid inlet pipe 2 is connected to the liquid delivery pipe and a one-way valve is set, the lower end of the liquid outlet pipe 4 is connected to the drain pipe and a one-way valve is set, the upper end of the steam pipe 1 is connected to the gas delivery pipe and a one-way valve is set, the lower end of the steam pipe 1 is connected to the exhaust pipe and a one-way valve is set, and a constant pressure gas supply system is equipped at the same time, which can supply gas to the steam pipe 1 at a constant pressure; then a certain amount of cold water is discharged through the liquid inlet pipe 2, and the height of the cold water can be higher than the upper plate body 6, and then a certain amount of steam is introduced into the steam pipe 1 and discharged, and then the temperature of the cold water in the liquid pipe 9 after heating can be detected by a temperature sensor, and the temperature of the cold water after heating is detected multiple times by adjusting the upper plate body 6 and the above method until the finally obtained heated cold water meets the required temperature; during operation, a certain amount of cold water and steam are introduced each time to obtain water of the required temperature.

[0049] In this embodiment, a connecting support frame (not shown) is provided on the 3 sides of the shell, and multiple devices can be arranged in parallel through the connecting support frame. Water of different temperatures can be obtained simultaneously during operation, which can be directly used in a variety of equipment and is more convenient to use.

[0050] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0051] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A constant pressure steam spiral recovery device, comprising a shell (3), wherein a steam pipe (1) is vertically penetrated through the shell (3), characterized in that: A liquid inlet pipe (2) is provided above the shell (3); an upper plate body (6) is rotatably provided near the upper side of the steam pipe (1), and a control mechanism for controlling the rotation of the upper plate body (6) is provided; a plurality of upper liquid through holes (5) are provided on the upper plate body (6), and a liquid through pipe (9) is provided below the upper liquid through holes (5); the liquid through pipe (9) is tightly attached to the peripheral side of the steam pipe (1), and a heat conducting portion (901) is provided inside the liquid through pipe (9); a lower plate body (12) is slidably provided near the lower side of the steam pipe (1) in a vertical direction, and a plurality of lower liquid through holes (16) are provided on the lower plate body (12), and the lower liquid through holes (16) are provided on the lower plate body (12). (16) is connected to the end of the liquid pipe (9) away from the upper liquid hole (5), the lower plate body (12) is connected to a liquid outlet pipe (4), a fixed plate (14) is provided on the periphery of the steam pipe (1) below the lower plate body (12), an elastic member (15) is provided between the fixed plate (14) and the lower plate body (12), the liquid outlet pipe (4) is fixedly connected to the fixed plate (14), and the end away from the lower plate body (12) extends out of the shell (3), and when working, the spiral winding mode of the liquid pipe (9) on the steam pipe (1) is changed by changing the relative position of the upper plate body (6) and the lower plate body (12).

2. A constant pressure steam spiral recovery device according to claim 1, characterized in that: The circumferential side of the upper plate body (6) is sealed and rotatably connected to the shell (3), and the portion of the steam pipe (1) located above the upper plate body (6) and the upper plate body (6) are both made of heat-insulating material.

3. A constant pressure steam spiral recovery device according to claim 1, characterized in that: A plurality of upper liquid-through holes (5) are arranged at equal intervals along the circumference near the inner side of the upper plate body (6); an upper limit plate (7) is arranged below the upper plate body (6); the upper limit plate (7) is annular, and the inner side is in close contact with the liquid-through pipe (9); a plurality of lower liquid-through holes (16) are arranged at equal intervals along the circumference near the inner side of the lower plate body (12); a lower limit plate (11) is arranged above the lower plate body (12); the lower limit plate (11) is annular, and the inner side is in close contact with the liquid-through pipe (9).

4. A constant pressure steam spiral recovery device according to claim 3, characterized in that: The upper limit plate (7) and the lower limit plate (11) are both provided with a ball (17) on their inner sides, and are closely attached to the liquid passage pipe (9) through the ball (17).

5. A constant pressure steam spiral recovery device according to claim 3, characterized in that: The steam pipe (1) is provided with an annular slide groove (8), and a connecting mechanism is provided between the annular slide groove (8) and the liquid passage pipe (9). The connecting mechanism comprises a slider (24) slidably arranged in the annular slide groove (8), and a universal ball (22) is provided on the slider (24). The universal ball (22) is connected to a clamp (23), and the inner diameter of the clamp (23) is adapted to the outer diameter of the liquid passage pipe (9), and the clamp (23) can slide and rotate relative to the liquid passage pipe (9).

6. A constant pressure steam spiral recovery device according to claim 1, characterized in that: The control mechanism comprises an annular rack (18) arranged on an upper plate body (6), the annular rack (18) being meshedly connected with a gear (19), the gear (19) being connected with a motor (21), the motor (21) being electrically connected with a controller, and a support plate (20) being provided between the motor (21) and the housing (3).

7. The constant pressure steam spiral recovery device according to claim 1, characterized in that: A liquid storage chamber (13) is provided below the lower plate body (12); the liquid storage chamber (13) is connected to the liquid through pipe (9) through a lower liquid through hole (16); the liquid outlet pipe (4) is connected to the liquid storage chamber (13); the liquid outlet pipe (4) is fixedly connected to the fixed plate (14); and the portion between the fixed plate (14) and the liquid storage chamber (13) adopts a telescopic structure.

8. A constant pressure steam spiral recovery device according to claim 7, characterized in that: The liquid storage chamber (13) is made of heat insulating material.

9. The constant pressure steam spiral recovery device according to claim 7, characterized in that: Two ends of the elastic member (15) are respectively connected to the liquid storage chamber (13) and the fixing plate (14).

10. The constant pressure steam spiral recovery device according to claim 1, characterized in that: A connecting support frame is provided on the peripheral side of the shell (3).

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