An adaptive regulation type intelligent jet pump and a method thereof

Abstract

This invention provides an adaptive adjustment intelligent jet pump and its method. The adaptive adjustment intelligent jet pump includes a connecting pipe, a nozzle, a suction chamber, a mixing chamber, and an expansion pipe connected in sequence. The other end of the connecting pipe is fixedly connected to the output end of the jetting device. A rotary drive component is fixed on the outside of the suction chamber. A variable length jetting assembly for adapting to changes in steam flow is rotatably arranged inside the mixing chamber. Multiple rotating blades are rotatably arranged inside the variable length jetting assembly. Each of the multiple rotating blades has an elastic telescopic component on its surface. One end of the variable length jetting assembly is detachably connected to one end of the rotary drive component. The adaptive adjustment intelligent jet pump and its method provided by this invention solve the problems of insufficient jet velocity or excessive diffusion that occur in traditional steam jet pumps due to the fixed nozzle structure when the steam flow deviates from the design value due to insufficient boiler fuel supply or a sudden increase in process demand.

Description

Technical Field

[0001] This invention relates to the field of hydraulic machinery technology, and in particular to an adaptive adjustment type intelligent jet pump and its method. Background Technology

[0002] Steam jet pumps, as an important type of fluid transport and energy conversion equipment, are widely used in chemical, energy, and environmental protection fields. Their core principle is to accelerate high-pressure steam through a nozzle to form a high-speed jet, creating a low-pressure zone in the suction chamber to draw in low-pressure gas or liquid media. Then, momentum exchange and pressure recovery are completed in the mixing chamber, and finally, the pressurized mixed fluid is output through the diffuser.

[0003] In actual operation, the steam parameters of traditional steam jet pumps often deviate from the design values ​​due to heat source fluctuations, load changes, or system aging, resulting in a significant decrease in pump efficiency. For example, when the boiler fuel supply, such as natural gas or pulverized coal, is insufficient, the boiler combustion intensity weakens, and the steam flow rate decreases, the jet velocity of the fixed nozzle is insufficient, and it is impossible to form an effective low-pressure zone in the suction chamber, thus weakening the suction capacity. Conversely, when the load suddenly increases due to process requirements, the boiler combustion intensity needs to be increased, the steam flow rate is too high, the jet diffuses excessively, the energy loss in the mixing chamber increases, and the output pressure is unstable. Existing technologies include methods for controlling flow rate by adjusting steam valves. However, such passive adjustment methods suffer from problems such as response lag and cannot solve the energy loss caused by uneven flow field distribution in the mixing chamber. For example, when the steam flow rate decreases, a flow dead zone appears at the top of the mixing chamber due to excessive jet attenuation, while the bottom experiences local overload due to jet concentration, resulting in reduced overall efficiency and inconvenience in actual use.

[0004] Therefore, it is necessary to provide a new adaptive adjustment intelligent jet pump and its method to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides an adaptive adjustment intelligent jet pump and its method.

[0006] The adaptive adjustment intelligent jet pump provided by the present invention includes: a connecting pipe, a nozzle, a suction chamber, a mixing chamber, and an expansion pipe connected in sequence. The other end of the connecting pipe is fixedly connected to the output end of the jetting device. A rotary drive component is fixed on the outside of the suction chamber. A variable length jetting assembly for adapting to changes in steam flow is rotatably arranged inside the mixing chamber. Multiple rotating blades are rotatably arranged inside the variable length jetting assembly. Each of the multiple rotating blades is provided with an elastic telescopic component on its surface. One end of the variable length jetting assembly is detachably connected to one end of the rotary drive component. When the variable length injection assembly rotates, the length of the rotating blades inside the variable length injection assembly dynamically changes with the rotation position. The length of the rotating blades located at the top of the variable length injection assembly is shorter than the length of the rotating blades located at the bottom of the variable length injection assembly. When the rotating blade moves downward, the increased thrust from the nozzle jet causes the elastic telescopic component to stretch, and the rotating blade is in an elongated state. When the rotating blade moves upward, the decreased thrust from the nozzle jet causes the elastic telescopic component to recover its elastic deformation, and the rotating blade is in a shortened state.

[0007] Preferably, the variable length telescopic assembly includes a rotating rod, and a plurality of rotating blades are arranged around the outside of the rotating rod. Each of the plurality of rotating blades includes a first rotating plate and a second rotating plate. One end of each of the first rotating plates is fixedly connected to the outside of the rotating rod, and one end of each of the plurality of second rotating plates rotates at the other end of the plurality of first rotating plates away from the rotating rod via a plurality of rotating shafts.

[0008] Preferably, a mounting groove is provided on one side of the plurality of first rotating plates, a mounting seat is fixed on the surface of the plurality of second rotating plates, the bottom of the plurality of elastic telescopic components rotates on the bottom wall of the plurality of mounting grooves, a guide component is provided on one side of the rotating blade, and the other end of the plurality of elastic telescopic components passes through the surface of the guide component and is fixedly connected to one side of the mounting seat.

[0009] Preferably, each of the plurality of elastic telescopic components includes a turntable, the bottom of which rotates on the bottom wall of the mounting groove, a first I-shaped plate fixed to the top of the turntable, a second I-shaped plate fixed to the top of the first I-shaped plate, a torsion spring sleeved on the inner sidewall of the surface of the first I-shaped plate, the bottom of the torsion spring passing through the bottom of the first I-shaped plate and fixedly connected to the bottom wall of the mounting groove, the top of the torsion spring being fixedly connected to the top wall of the first I-shaped plate, and a pull rope wound around the top of the second I-shaped plate, one end of which passes through the guide assembly and is fixedly connected to one side of the mounting base.

[0010] Preferably, an elastic element is further provided between the first rotating plate and the second rotating plate; The elastic element includes two mounting plates, which are respectively fixed to the surfaces of the first rotating plate and the second rotating plate. An elastic plate is provided between the two mounting plates, and the two ends of the elastic plate are fixed between the first rotating plate and the second rotating plate by a plurality of second bolts.

[0011] Preferably, the guide assembly includes a bracket, two second mounting brackets, and multiple first mounting brackets. The multiple first mounting brackets are equidistantly fixed to the top of the first rotating plate. Each of the multiple first mounting brackets has two first pulleys rotatably disposed on its inner sidewall. The two second mounting brackets are respectively fixed to the top of the two mounting plates. Each of the two second mounting brackets has a first guide rod rotatably disposed on its inner sidewall. The bracket is fixed to the top of the second rotating plate. The bracket has two second pulleys fixed to its inner sidewall. One end of the pull rope passes sequentially between the two first pulleys, the bottom of the first guide rod, and between the two second pulleys, and is fixedly connected to one side of the mounting base.

[0012] Preferably, two sealing boxes are provided between the first rotating plate and the second rotating plate. The two sealing boxes are respectively fixed to the top of the first rotating plate and the second rotating plate. The interior of the two sealing boxes forms an installation cavity. There is an internally hollow flexible connecting plate between the two sealing boxes. The turntable, the first I-shaped plate, the torsion spring, the second I-shaped plate, the pull rope, the first mounting bracket, the first pulley, the second mounting bracket, the first guide rod, the bracket, the second pulley, and the mounting base are all located in the sealing cavity.

[0013] Preferably, the rotary drive includes a housing, a cover plate is rotatably mounted on the top of the housing, a pull ring is also installed on the surface of the cover plate, the housing is fixed to the outside of the suction chamber, a motor is fixed inside the housing, one end of the rotating rod passes through the surface of the suction chamber and extends into the inside of the housing, and the output end of the motor is detachably connected to one end of the rotating rod through a limiting component.

[0014] Preferably, the limiting component includes clamping plates, with two fixing plates fixed to the top and bottom of the two clamping plates, the rotating rod and the output end of the motor located between the two clamping plates, the four fixing plates being fixed together by a plurality of first bolts, and a rubber pad being provided between the two clamping plates.

[0015] A method for using an adaptive adjustment intelligent jet pump includes the following operating steps: Step 1, Preparation Stage: First, align the connecting pipe with the output end of the injection equipment, manually tighten the flange bolts until the contact surfaces are flush, check whether the sealing ring at the connection between the suction chamber and the mixing chamber is flat, and lightly press the edge of the sealing ring to verify its resilience. Step 2, Low Flow Start-up Stage: After the preparation stage is completed, slowly open the valve at the output end of the injection equipment to allow steam to enter the nozzle through the connecting pipe. At low flow rates, the jet thrust of the nozzle is small, and the second rotating plate is kept in a folded state by the pre-tightening force of the elastic plate. The effective length of the rotating blade is shortened. Observe whether the pull rope in the guide assembly is loose and confirm that there is no interference between the first pulley and the second pulley. Step 3, Flow Surge Response Stage: At this time, the output pressure of the injection equipment is gradually increased to increase the steam flow rate. The high-speed jet impacts the second rotating plate, overcomes the resistance of the elastic plate, and causes it to unfold around the axis. The pull rope is pulled by the mounting seat to rotate the turntable. The torque of the torsion spring increases, driving the stretching elongation. The first guide rod in the guide assembly guides the pull rope path. Step 4, Flow Reduction Response Stage: Gradually reduce the output pressure of the jetting equipment. After the jet thrust decreases, the elastic plate restores its deformation, driving the second rotating plate to fold. The length of the rotating blades shortens, the torque of the torsion spring is released, the pull rope is tightened, and the turntable returns to its initial angle. Step 5, Shutdown Phase: Close the output valve of the spraying equipment and disconnect the motor power.

[0016] Compared with related technologies, the adaptive adjustment intelligent jet pump and method provided by the present invention have the following beneficial effects: 1. The variable length injection assembly of the present invention dynamically responds to changes in steam flow rate through the synergistic effect of rotating blades and elastic telescopic components. When the steam flow rate is lower than the design value, the rotating drive is activated, driving the variable length injection assembly to rotate. This causes the blades at the top of the variable length injection assembly to shorten and the rotating blades at the bottom to lengthen. The shortened top rotating blades reduce collision losses between the jet and the mixing chamber wall, maintaining stability in the low-pressure zone. The lengthened bottom blades enhance the kinetic energy of the jet core area and improve suction efficiency. When the steam flow rate exceeds the design threshold, the connection between the variable length injection assembly and the rotating drive is disassembled. The rotating blades independently extend and adapt under the action of jet thrust. At this time, the bottom rotating blades of the variable length injection assembly further lengthen due to the increased thrust, suppressing excessive jet diffusion. The shortened top blades of the variable length injection assembly avoid flow dead zones. To a certain extent, this solves the problems of insufficient jet velocity or excessive diffusion that occur in traditional steam jet pumps, which use a fixed nozzle structure, when the steam flow rate deviates from the design value due to insufficient boiler fuel supply or a sudden increase in process demand. 2. Traditional jet pumps suffer from significant energy conversion efficiency losses due to uneven circumferential distribution of the flow field within the mixing chamber. This invention addresses this by employing a dynamic gradient distribution design for the blade length. The shortened top rotating blades reduce premature attenuation in the jet edge region, ensuring uniform intake of low-pressure gas or liquid media and preventing pumping interruptions caused by dead zones. The elongated bottom rotating blades enhance momentum exchange between the jet core region and the medium, alleviating local overload and preventing energy dissipation caused by severe turbulence. Furthermore, the blade length continuously changes with position during rotation, forming a gradient structure with a shorter top and longer bottom. This, to a certain extent, makes the pressure and velocity distribution within the mixing chamber more uniform. The bottom rotating blades also propel the fluid, creating an axial flow field that suppresses collision losses between the jet and the mixing chamber wall. Simultaneously, the rotating flow channel enhances the radial mixing effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an existing steam jet pump. Figure 2 This is a schematic diagram of the adaptive adjustment intelligent jet pump provided by the present invention; Figure 3 This is a schematic diagram of the motor structure; Figure 4 This is a schematic cross-sectional view of an existing steam jet pump. Figure 5 A cross-sectional structural schematic diagram of the adaptive adjustment intelligent jet pump provided by the present invention; Figure 6 This is a schematic diagram of the main structure of the fastener; Figure 7 This is a schematic diagram of the clamping plate structure; Figure 8 This is a schematic diagram of the variable length injection assembly. Figure 9 This is a schematic diagram of the structure of the first rotating blade; Figure 10 for Figure 9 Enlarged view of point A in the middle; Figure 11 This is a schematic diagram of the cross-sectional structure of the rotating blade; Figure 12 for Figure 11 Enlarged view of point B in the middle; Figure 13 This is a schematic diagram of the structure of the second elastic telescopic component.

[0018] The diagram shows the following components: 1. Inhalation chamber; 2. Connecting pipe; 21. Nozzle; 3. Expanding pipe; 31. Mixing chamber; 4. Housing; 41. Cover plate; 42. Motor; 421. Clamping plate; 422. Fixing plate; 423. First bolt; 424. Rubber pad; 43. Rotating rod; 44. First rotating plate; 45. Rotating shaft; 46. Second rotating plate; 461. Mounting plate; 462. Second bolt; 463. Elastic plate; 5. Mounting groove; 51. Turntable; 52. First I-beam; 521. Torsion spring; 522. Second I-beam; 53. Pull rope; 54. First mounting bracket; 541. First pulley; 55. Second mounting bracket; 551. First guide rod; 56. Bracket; 561. Second pulley; 57. Mounting seat; 6. Sealing box; 61. Mounting cavity; 62. Flexible connecting plate. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to the following: Figures 1 to 13 ,in, Figure 1 This is a schematic diagram of an existing steam jet pump. Figure 2 This is a schematic diagram of the adaptive adjustment intelligent jet pump provided by the present invention; Figure 3 This is a schematic diagram of the motor structure; Figure 4 This is a schematic cross-sectional view of an existing steam jet pump. Figure 5 A cross-sectional structural schematic diagram of the adaptive adjustment intelligent jet pump provided by the present invention; Figure 6 This is a schematic diagram of the main structure of the fastener; Figure 7 This is a schematic diagram of the clamping plate structure; Figure 8 This is a schematic diagram of the variable length injection assembly. Figure 9 This is a schematic diagram of the structure of the first rotating blade; Figure 10 for Figure 9 Enlarged view of point A in the middle; Figure 11 This is a schematic diagram of the cross-sectional structure of the flow guiding component; Figure 12 for Figure 11 Enlarged view of point B in the middle; Figure 13 This is a schematic diagram of the structure of the second elastic telescopic component.

[0021] In some embodiments, such as Figures 1 to 13 As shown, it includes a connecting pipe 2, a nozzle 21, a suction chamber 1, a mixing chamber 31, and an expansion pipe 3 connected in sequence. The other end of the connecting pipe 2 is fixedly connected to the output end of the injection device. A rotary drive is fixed on the outside of the suction chamber 1. A variable length injection assembly for adapting to changes in steam flow is rotatably arranged inside the mixing chamber 31. Multiple rotating blades are rotatably arranged inside the variable length injection assembly. The surfaces of the multiple rotating blades are provided with elastic telescopic components. One end of the variable length injection assembly is detachably connected to one end of the rotary drive. When the variable length injection assembly rotates, the length of the rotating blades inside the assembly changes dynamically with the rotation position. The length of the rotating blades located at the top of the variable length injection assembly is shorter than the length of the rotating blades located at the bottom of the assembly. When the rotating blade moves downward, the increased thrust from the jet of nozzle 21 causes the elastic telescopic component to stretch, and the rotating blade is in an elongated state. When the rotating blade moves upward, the decreased thrust from the jet of nozzle 21 causes the elastic telescopic component to return to its elastic deformation, and the rotating blade is in a shortened state.

[0022] The bottom of the suction chamber 1 is used to draw in the fluid to be mixed; Specifically, the variable-length injection assembly of the present invention dynamically responds to changes in steam flow rate through the synergistic effect of rotating blades and elastic telescopic components. When the steam flow rate is lower than the design value, the rotating drive is activated, driving the variable-length injection assembly to rotate. This causes the blades at the top of the variable-length injection assembly to shorten and the rotating blades at the bottom to lengthen. The shortened top rotating blades reduce collision losses between the jet and the inner wall of the mixing chamber 31, maintaining stability in the low-pressure zone. The lengthened bottom blades enhance the kinetic energy of the jet core area and improve suction efficiency. When the steam flow rate exceeds the design threshold, the connection between the variable-length injection assembly and the rotating drive is disassembled and released. The rotating blades independently extend and adapt under the thrust of the jet. At this time, the bottom rotating blades of the variable-length injection assembly further lengthen due to the increased thrust, suppressing excessive jet diffusion; the top blades of the variable-length injection assembly shorten to avoid flow dead zones. Furthermore, traditional jet pumps suffer from significant energy conversion efficiency losses due to uneven circumferential flow field distribution within the mixing chamber 31. This invention addresses this by employing a dynamic gradient distribution design for blade length. The shortened top rotating blades reduce premature attenuation in the jet edge region, ensuring uniform intake of low-pressure gas or liquid media and preventing pumping interruptions caused by dead zones. The elongated bottom rotating blades enhance momentum exchange between the jet core region and the medium, alleviating local overload and preventing energy dissipation caused by severe turbulence. During rotation, the blade length continuously changes with position, forming a gradient structure of short top and long bottom. To a certain extent, this makes the pressure and velocity distribution within the mixing chamber more uniform. The bottom rotating blades also propel the fluid, creating an axial flow field that suppresses collision losses between the jet and the inner wall of the mixing chamber 31. Simultaneously, the rotating flow channel enhances the radial mixing effect.

[0023] In some embodiments, reference is made to Figure 1 , Figure 5 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 as well as Figure 13As shown, the variable length telescopic assembly includes a rotating rod 43, and multiple rotating blades are arranged around the outside of the rotating rod 43. Each of the multiple rotating blades includes a first rotating plate 44 and a second rotating plate 46. One end of the first rotating plate 44 is fixedly connected to the outside of the rotating rod 43, and one end of each of the multiple second rotating plates 46 rotates at the other end of the multiple first rotating plates 44 away from the rotating rod 43 through multiple rotating shafts 5. A mounting groove 5 is provided on one side of a plurality of first rotating plates 44, and mounting bases 57 are fixed on the surface of a plurality of second rotating plates 46. The bottoms of a plurality of elastic telescopic components rotate on the bottom wall of a plurality of mounting grooves 5 respectively. A guide component is also provided on one side of the rotating blades. The other end of a plurality of elastic telescopic components passes through the surface of the guide component and is fixedly connected to one side of the mounting base 57. Multiple elastic telescopic components include a turntable 51. The bottom of the turntable 51 rotates on the bottom wall of the mounting groove 5. A first I-shaped plate 52 is fixed to the top of the turntable 51. A second I-shaped plate 521 is fixed to the top of the first I-shaped plate 52. A torsion spring 521 is sleeved on the inner side wall of the surface of the first I-shaped plate 52. The bottom of the torsion spring 521 passes through the bottom of the first I-shaped plate 52 and is fixedly connected to the bottom wall of the mounting groove 5. The top of the torsion spring 521 is fixedly connected to the top wall of the first I-shaped plate 52. A pull rope 53 is wound around the top of the second I-shaped plate 521. One end of the pull rope passes through the guide assembly and is fixedly connected to one side of the mounting base 57. An elastic element is also provided between the first rotating plate 44 and the second rotating plate 46; The elastic element includes two mounting plates 461, which are respectively fixed to the surfaces of the first rotating plate 44 and the second rotating plate 46. An elastic plate 463 is provided between the two mounting plates 461. The two ends of the elastic plate 463 are fixed between the first rotating plate 44 and the second rotating plate 46 by multiple second bolts 462. The elastic plate 463 is preferably a rubber plate, which has a certain elasticity and the elastic force is greater than that of the torsion spring 521. The specific material design of the torsion spring 521 and the elastic plate 463 can be selected according to actual needs, and will not be described in detail here. The guide assembly includes a bracket 56, two second mounting brackets 55, and multiple first mounting brackets 54. The multiple first mounting brackets 54 are equidistantly fixed to the top of the first rotating plate 44. Two first pulleys 541 are rotatably arranged on the inner sidewall of each of the multiple first mounting brackets 54. The two second mounting brackets 55 are respectively fixed to the top of the two mounting plates 461. A first guide rod 551 is rotatably arranged on the inner sidewall of each of the two second mounting brackets 55. The bracket 56 is fixed to the top of the second rotating plate 46. Two second pulleys 561 are fixed on the inner sidewall of the bracket 56. One end of the pull rope 53 passes through the space between the two first pulleys 541, the bottom of the first guide rod 551, and the space between the two second pulleys 561 in sequence and is fixedly connected to one side of the mounting base 57. Two sealing boxes 6 are provided between the first rotating plate 44 and the second rotating plate 46. The two sealing boxes 6 are fixed to the top of the first rotating plate 44 and the second rotating plate 46 respectively. The interior of the two sealing boxes 6 forms an installation cavity 61. There is a hollow flexible connecting plate 62 between the two sealing boxes 6. The turntable 51, the first I-shaped plate 52, the torsion spring 521, the second I-shaped plate 521, the pull rope 53, the first mounting bracket 54, the first pulley 541, the second mounting bracket 55, the first guide rod 551, the bracket 56, the second pulley 561, and the mounting base 57 are all located in the sealing cavity 61.

[0024] Among them, the shortening of the rotating blades reduces jet collision loss, maintains the stability of the low-pressure area, and solves the problem of insufficient suction capacity of traditional equipment. The elongation of the rotating blades enhances the jet kinetic energy, suppresses excessive diffusion, avoids energy loss, and overcomes the defect of output pressure fluctuation of traditional equipment. The shortening and elongation of the rotating blades is the angle of rotation of the second rotating plate 46 on the surface of the first rotating plate 44. Specifically, when the steam flow rate is lower than the design value, the rotary drive is activated, driving the rotating rod 43 and the rotating blades to rotate. The centrifugal force generated by the rotation causes the second rotating plate 46 to rotate around the rotating shaft 5 towards the first rotating plate 44. The overall length of the rotating blades shortens, the torsion spring 521 is compressed, and the pull rope 53 is unwound. The centrifugal force provided by the rotary drive overcomes the spring force of the torsion spring, maintaining the shortened state of the rotating blades. The shortened rotating blades reduce the collision loss between the jet and the inner wall of the mixing chamber 31, maintain the stability of the low-pressure area, and improve the suction capacity. When the steam flow rate increases, the jet thrust exceeds the centrifugal force provided by the rotary drive, and the variable length injection assembly is disconnected from the rotary drive. The jet thrust causes the second rotating plate 46 to rotate around the rotating shaft 5 away from the first rotating plate 44. The length of the rotating blades lengthens, the torsion spring 521 lengthens, and the pull rope 53 is stretched. The second rotating plate 46 is guided to lengthen through the guide assembly, and the elastic plate 463 is stretched, providing additional elastic recovery force. The lengthened rotating blades enhance the kinetic energy of the jet core area, suppress excessive jet diffusion, and reduce the energy loss of the mixing chamber 31. Furthermore, the pull rope 53 is guided by the first pulley 541, the first guide rod 551 and the second pulley 561, so that the second rotating plate 46 on the surface of the first rotating plate 44 is more stable when it extends or shortens and rotates, avoiding jamming. In addition, the establishment of the sealing cavity 61 prevents steam or impurities from entering the elastic telescopic component, reducing the failure rate.

[0025] In some embodiments, reference is made to Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 as well as Figure 8As shown, the rotary drive unit includes a housing 4. A cover plate 41 is rotatably mounted on the top of the housing 1. The cover plate 41 is connected to the housing 1 by a hinge. A pull ring is also installed on the surface of the cover plate 41. The housing 4 is fixed to the outside of the suction chamber 1. A motor 42 is fixed inside the housing 4. The motor 42 is used to drive the rotating rod 43 to rotate. One end of the rotating rod 43 passes through the surface of the suction chamber 1 and extends into the interior of the housing 4. A sealed bearing is used at the contact point between the rotating rod 43 and the suction chamber 1 to prevent steam leakage. The output end of the motor 42 is detachably connected to one end of the rotating rod 43 through a limiting component. The limiting assembly includes a clamping plate 421. Two semi-circular clamping plates 421 are symmetrically arranged to cover the connection between the output end of the motor 42 and the rotating rod 43. Two fixing plates 422 are fixed at the top and bottom of the two clamping plates 421. The four fixing plates 422 are fixed together by multiple first bolts 423. A rubber pad 424 is also provided between the two clamping plates 421.

[0026] Specifically, when the motor 42 is needed, the two semi-circular clamps 421 are arranged symmetrically to cover the connection between the output end of the motor 42 and the rotating rod 43. When the motor 42 is not needed, i.e. the process demand increases sharply and the steam flow increases, the clamps are removed by loosening the first bolt 423, and the motor 42 and the rotating rod 43 can be quickly separated. Furthermore, a flow meter can be installed on the outside of the suction chamber 1, with its installation position adjacent to the housing 4. The sensor probe adopts a non-invasive ultrasonic sensor or a thermal flow sensor, which is fixed to the outer wall of the suction chamber 1. The fluid velocity is measured by penetrating the pipe wall through a waveguide or thermal element. The cable between the housing 4 and the flow meter 5 is connected through a waterproof connector. The flow rate of the steam detected by the flow meter is used to determine whether it is necessary to disassemble or install the output end of the rotating rod 43 and the motor 42. Installing the flow meter and connecting the flow meter to the signal of the external display screen are common knowledge in the art and will not be described in detail here.

[0027] A method for using an adaptive adjustment intelligent jet pump, see reference. Figures 1 to 13 As shown, the operation steps are as follows: Step 1, Preparation Stage: First, align the connecting pipe 2 with the output end of the injection equipment, manually tighten the flange bolts until the contact surfaces are flush, check whether the sealing ring at the connection between the suction chamber 1 and the mixing chamber 31 is flat, and lightly press the edge of the sealing ring to verify its resilience. Step 2, Low Flow Start-up Stage: After the preparation stage is completed, slowly open the valve at the output end of the injection equipment to allow steam to enter the nozzle 21 through the connecting pipe 2. At low flow rate, the jet thrust of the nozzle 21 is small. The second rotating plate 46 is kept in a folded state by the pre-tightening force of the elastic plate 463. The effective length of the rotating blade is shortened. Observe whether the pull rope 53 in the guide assembly is loose and confirm that there is no interference between the first pulley 541 and the second pulley 561. Step 3, Flow surge response stage: At this time, the output pressure of the injection equipment is gradually increased to increase the steam flow. The high-speed jet impacts the second rotating plate 46, overcomes the resistance of the elastic plate 463 and causes it to unfold around the rotating shaft 5. The pull rope 53 is pulled by the mounting base 57 to rotate the turntable 51. The torque of the torsion spring 521 increases, driving the tension 53 to extend. The first guide rod 551 in the guide assembly guides the path of the pull rope 53. Step 4, Flow Reduction Response Stage: Gradually reduce the output pressure of the jetting equipment. After the jet thrust decreases, the elastic plate 463 restores its deformation, driving the second rotating plate 46 to fold. The length of the rotating blades shortens, the torque of the torsion spring 521 is released, the pull rope 53 is tightened, and the turntable 51 returns to its initial angle. Step 5, Shutdown phase: Close the output valve of the spraying equipment and disconnect the power supply to motor 42.

[0028] It is worth noting that if the valve is not closed and the machine is stopped directly, the residual pressure inside the spraying equipment will impact the nozzle 21 in the opposite direction through the connecting pipe 2, causing the nozzle 21 to deform or the sealing ring to fail due to compression.

[0029] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0030] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An adaptive adjustment type intelligent jet pump, comprising a connecting pipe (2), a nozzle (21), a suction chamber (1), a mixing chamber (31), and an expansion pipe (3) connected in sequence, wherein the other end of the connecting pipe (2) is fixedly connected to the output end of the jetting device, characterized in that, A rotary drive is fixed to the outside of the suction chamber (1), and a variable length injection assembly for adapting to changes in steam flow is rotatably arranged inside the mixing chamber (31). Multiple rotating blades are rotatably arranged inside the variable length injection assembly, and elastic telescopic components are provided on the surface of each of the multiple rotating blades. One end of the variable length injection assembly is detachably connected to one end of the rotary drive.

2. The adaptive adjustment intelligent jet pump according to claim 1, characterized in that, The variable length telescopic assembly includes a rotating rod (43), and a plurality of rotating blades are arranged around the outside of the rotating rod (43). Each of the plurality of rotating blades includes a first rotating plate (44) and a second rotating plate (46). One end of each of the first rotating plates (44) is fixedly connected to the outside of the rotating rod (43), and one end of each of the plurality of second rotating plates (46) rotates at the other end of the plurality of first rotating plates (44) away from the rotating rod (43) via a plurality of rotating shafts (5).

3. The adaptive adjustment intelligent jet pump according to claim 2, characterized in that, A mounting groove (5) is provided on one side of a plurality of first rotating plates (44), and a mounting seat (57) is fixed on the surface of a plurality of second rotating plates (46). The bottoms of a plurality of elastic telescopic components rotate on the bottom wall of a plurality of mounting grooves (5). A guide component is also provided on one side of the rotating blade. The other end of a plurality of elastic telescopic components passes through the surface of the guide component and is fixedly connected to one side of the mounting seat (57).

4. The adaptive adjustment intelligent jet pump according to claim 3, characterized in that, Each of the aforementioned elastic telescopic components includes a turntable (51), the bottom of which rotates on the bottom wall of the mounting groove (5). A first I-plate (52) is fixed to the top of the turntable (51), and a second I-plate (521) is fixed to the top of the first I-plate (52). A torsion spring (521) is sleeved on the inner side wall of the surface of the first I-plate (52). The bottom of the torsion spring (521) passes through the bottom of the first I-plate (52) and is fixedly connected to the bottom wall of the mounting groove (5). The top of the torsion spring (521) is fixedly connected to the top wall of the first I-plate (52). A pull rope (53) is wound around the top of the second I-plate (521). One end of the pull rope passes through the guide assembly and is fixedly connected to one side of the mounting base (57).

5. The adaptive adjustment intelligent jet pump according to claim 4, characterized in that, An elastic element is also provided between the first rotating plate (44) and the second rotating plate (46); The elastic element includes two mounting plates (461), which are respectively fixed on the surfaces of the first rotating plate (44) and the second rotating plate (46). An elastic plate (463) is provided between the two mounting plates (461), and the two ends of the elastic plate (463) are fixed between the first rotating plate (44) and the second rotating plate (46) by a plurality of second bolts (462).

6. The adaptive adjustment intelligent jet pump according to claim 5, characterized in that, The guide assembly includes a bracket (56), two second mounting brackets (55) and a plurality of first mounting brackets (54). The plurality of first mounting brackets (54) are fixed at equal intervals on the top of the first rotating plate (44). Two first pulleys (541) are rotatably provided on the inner sidewall of each of the plurality of first mounting brackets (54). The two second mounting brackets (55) are respectively fixed on the top of the two mounting plates (461). A first guide rod (551) is rotatably provided on the inner sidewall of each of the two second mounting brackets (55). The bracket (56) is fixed on the top of the second rotating plate (46). Two second pulleys (561) are fixed on the inner sidewall of the bracket (56). One end of the pull rope (53) passes sequentially between the two first pulleys (541), the bottom of the first guide rod (551), and between the two second pulleys (561) and is fixedly connected to one side of the mounting base (57).

7. The adaptive adjustment intelligent jet pump according to claim 6, characterized in that, Two sealing boxes (6) are provided between the first rotating plate (44) and the second rotating plate (46). The two sealing boxes (6) are fixed on the top of the first rotating plate (44) and the second rotating plate (46) respectively. The two sealing boxes (6) have an installation cavity (61) inside. There is a hollow flexible connecting plate (62) between the two sealing boxes (6). The turntable (51), the first I-shaped plate (52), the torsion spring (521), the second I-shaped plate (521), the pull rope (53), the first mounting bracket (54), the first pulley (541), the second mounting bracket (55), the first guide rod (551), the bracket (56), the second pulley (561), and the mounting seat (57) are all located in the sealing cavity (61).

8. The adaptive adjustment intelligent jet pump according to claim 7, characterized in that, The rotating drive includes a housing (4), a cover plate (41) is rotatably provided on the top of the housing (1), and a pull ring is also installed on the surface of the cover plate (41). The housing (4) is fixed to the outside of the suction chamber (1), and a motor (42) is fixed inside the housing (4). One end of the rotating rod (43) passes through the surface of the suction chamber (1) and extends into the inside of the housing (4). The output end of the motor (42) is detachably connected to one end of the rotating rod (43) through a limiting component.

9. The adaptive adjustment intelligent jet pump according to claim 8, characterized in that, The limiting assembly includes clamps (421), and two fixing plates (422) are fixed at the top and bottom of the two clamps (421). The output ends of the rotating rod (43) and the motor (42) are located between the two clamps (421). The four fixing plates (422) are fixed together by multiple first bolts (423), and a rubber pad (424) is provided between the two clamps (421).

10. A method of using the adaptive adjustment intelligent jet pump according to any one of claims 1-9, characterized in that, The following steps are included: Step 1, Preparation stage: First, align the connecting pipe (2) with the output end of the injection equipment, manually tighten the flange bolts until the contact surfaces are in contact, check whether the sealing ring at the connection between the suction chamber (1) and the mixing chamber (31) is flat, and lightly press the edge of the sealing ring to verify the resilience; Step 2, Low flow start-up stage: After the preparation stage is completed, slowly open the valve at the output end of the injection equipment to allow steam to enter the nozzle (21) through the connecting pipe (2). At low flow rate, the jet thrust of the nozzle (21) is small. The second rotating plate (46) is kept in a folded state by the pre-tightening force of the elastic plate (463). The effective length of the rotating blade is shortened. Observe whether the pull rope (53) in the guide assembly is loose and confirm that the first pulley (541) and the second pulley (561) do not interfere. Step 3, Flow surge response stage: At this time, the output pressure of the jetting equipment is gradually increased to increase the steam flow rate. The high-speed jet impacts the second rotating plate (46), overcomes the resistance of the elastic plate (463) and causes it to unfold around the rotating shaft (5). The pull rope (53) is pulled by the mounting base (57) to rotate the turntable (51). The torque of the torsion spring (521) increases, driving the tension (53) to elongate. The first guide rod (551) in the guide assembly guides the path of the pull rope (53). Step 4, Flow Reduction Response Stage: Gradually reduce the output pressure of the jetting equipment. After the jet thrust decreases, the elastic plate (463) restores its deformation and drives the second rotating plate (46) to fold. The length of the rotating blade is shortened, the torque of the torsion spring (521) is released, the pull rope (53) is tightened, and the turntable (51) returns to its initial angle. Step 5, Shutdown phase: Close the valve at the output end of the spraying equipment and cut off the power supply to the motor (42).

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