An in-service linear adjustment jet augmentor and method of operation

Abstract

The application relates to an in-service linear regulation jet supercharger and a working method, belonging to the technical field of injectors. The in-service linear regulation jet supercharger comprises an injector base body, an adjustable driving nozzle, a nozzle adjusting mechanism, corresponding temperature and pressure sealing control structures, an adjustable mixing chamber, a mixing chamber adjusting mechanism corresponding temperature and pressure sealing control structures and an intelligent control system. The core lies in that the adjustable driving nozzle and the adjustable mixing chamber can realize longitudinal linear regulation, the longitudinal working surfaces of the adjustable driving nozzle and the adjustable mixing chamber adopt flexible heat-conducting elements, and the flexible heat-conducting elements form pressure and temperature adjustable heat exchange medium sealing cavities with corresponding outer surfaces. When the operation condition changes, the cross sections of the nozzle and the mixing chamber can be adjusted flexibly by using cam adjusting structures or universal flexible shafts, the optimal supercharging ratio and the injection ratio matching function of the injector are completed by the intelligent control system, and in-service adaptive efficient work is realized. The application can be widely applied to unstable multi-phase supercharging or injection work occasions in process devices.

Description

TECHNICAL FIELD

[0001] The application designs a linear adjustment jet ejector in service and working method, belongs to the technical field of ejector. BACKGROUND

[0002] The ejector is a kind of fluid pressurizing equipment with simple system components, convenient operation and no failure in operation, which is widely used in petrochemical, energy and aerospace fields, however, the existing ejector has the defects of fixed structure size, single operation condition and low operation flexibility. How to improve the operation performance of the ejector under different conditions becomes the research focus to adjust the structure of the ejector in service. The traditional structure of the ejector is designed according to the operating pressure, temperature and flow condition, the diameter and length of the driving nozzle, the angle of the suction chamber, the length, diameter of the mixing chamber and the angle and length of the diffusion chamber are fixed, the small change of part of the key size has a great influence on the performance of the ejector, for example, the outlet position of the driving nozzle has a great influence on the performance of the ejector, when the distance is less than the optimal axial size, the fluid mixing area becomes small, the performance of the ejector will decrease, when the distance is too large, the fluid will flow backward in the mixing area. These factors cause the ejector to only achieve the optimal performance under a certain condition, and the applicability is poor under other conditions. It has important engineering practical significance to expand the working condition of the ejector, expand the use range of the ejector and improve the performance of the ejector.

[0003] At present, the structure adjustment of the ejector mainly focuses on the following aspects: one kind is to improve the performance of the ejector by changing the axial distance of the main structure of the ejector; one kind is to improve the performance of the ejector by adjusting the radial diameter of the main structure of the ejector, and these researches have made progress. The patent document "Structure capable of adjusting nozzle position of ejector" (publication number CN109701791A) sets a spiral groove on the outer wall of the nozzle, the inner wall of the ring sleeve sets a sliding key, the sliding key cooperates with the spiral groove to convert the rotation of the ring sleeve into the axial movement of the nozzle, and a transmission member is used to drive the ring sleeve to rotate. The transmission rod of the structure extends from the outlet section of the nozzle to the outer end of the diffusion chamber, which has the problem of hindering the mixing of working fluid and ejecting fluid. The patent document "Ejector with adjustable inner wall structure" (publication number CN105570202B) adjusts the relative axial distance between the mixing chamber and the main flow nozzle by changing the shape of the suction chamber, but the radial size of the nozzle cannot be adjusted. The patent document "Ejector with adjustable structure parameters" (publication number CN108266411A) can realize the adjustment of the structure of the diffusion chamber and the mixing chamber by nesting the three-stage expansion pipe and the straight pipe section, but the adjustment process is troublesome and not easy to operate. The patent document "Ejector with variable shape of elastic material middle section" (publication number CN112727812A) uses special elastic material, and the slider of the shape control system of the ejector is fixed relative to the outlet section through the connecting section. The slider is connected with the screw rod through the thread in the slider, the screw rod drives the slider to translate along the guide rail, and the size adjustment of the mixing chamber is realized. The invention has the problems of low pressure bearing capacity and fixed nozzle size. SUMMARY

[0004] The purpose of the present application is to provide a linear adjustment of the in-service injection pressure booster and working method to solve the above technical problems.

[0005] To optimize the working condition of the ejector and improve the performance of the ejector, the present application adopts the following scheme: a linear adjustment of the in-service injection pressure booster, which comprises a diffusion chamber, a mixing chamber, a fluid inlet section, an end cover and a nozzle connected in sequence, a nozzle adjustment mechanism and a mixing chamber adjustment mechanism, a transverse adjustment base body penetrates the end cover and is inserted into the mixing chamber, one end of the nozzle is connected with the transverse adjustment base body, and the other end is connected with the nozzle inlet pipe.

[0006] The mixing chamber outer wall and the mixing chamber inner cavity wall of the mixing chamber form a first sealed cavity, the nozzle outer wall and the nozzle inner cavity wall of the nozzle form a second sealed cavity, and the mixing chamber inner cavity wall and the nozzle inner cavity wall are made of flexible heat-conducting material.

[0007] The nozzle adjustment mechanism and the mixing chamber adjustment mechanism each independently adopt a cam shaft rod mechanism or a universal flexible shaft mechanism.

[0008] The camshaft rod mechanism comprises a camshaft and at least one cam mechanism, and the cam mechanism comprises a cam and a first guide rod.

[0009] When the nozzle adjusting mechanism or the mixing chamber adjusting mechanism adopts the camshaft rod mechanism, one end of the first guide rod is in contact with the outer periphery of the cam, and the other end is inserted into the inside of the first sealing cavity or the second sealing cavity and in contact with the mixing chamber inner cavity wall or the nozzle inner cavity wall.

[0010] The universal flexible shaft mechanism comprises a universal flexible shaft and a second guide rod.

[0011] When the nozzle adjusting mechanism or the mixing chamber adjusting mechanism adopts the universal flexible shaft mechanism, one end of the second guide rod is connected to the universal flexible shaft, and the other end is inserted into the inside of the first sealing cavity or the second sealing cavity and in contact with the mixing chamber inner cavity wall or the nozzle inner cavity wall.

[0012] The nozzle adjusting mechanism, the mixing chamber adjusting mechanism, and the transverse adjusting base are respectively driven by driving devices. The transverse adjusting base can move transversely along the inner cavity of the supercharger under the driving of the driving devices.

[0013] The in-service linearly-adjustable jet supercharger comprises two nozzle adjusting mechanisms symmetrically arranged on both sides of the nozzle and two mixing chamber adjusting mechanisms symmetrically arranged on both sides of the mixing chamber.

[0014] The in-service linearly-adjustable jet supercharger comprises two nozzle adjusting mechanisms symmetrically arranged on both sides of the nozzle and two mixing chamber adjusting mechanisms symmetrically arranged on both sides of the mixing chamber.

[0015] The in-service linearly-adjustable jet supercharger comprises two nozzle adjusting mechanisms symmetrically arranged on both sides of the nozzle and two mixing chamber adjusting mechanisms symmetrically arranged on both sides of the mixing chamber.

[0016] The driving devices are respectively independently electric motors, hydraulic transmission devices, or pneumatic transmission devices.

[0017] The in-service linearly-adjustable jet supercharger comprises a sealing heat medium inlet guide pipe and a sealing heat medium outlet guide pipe in communication with the second sealing cavity, and a sealing heat medium inlet and a sealing heat medium outlet arranged on the outer wall of the mixing chamber, which are connected to a temperature and pressure control device; the driving devices and the temperature and pressure control device are connected to a control system.

[0018] The in-service linearly-adjustable jet supercharger comprises a sealing heat medium inlet guide pipe and a sealing heat medium outlet guide pipe in communication with the second sealing cavity, and a sealing heat medium inlet and a sealing heat medium outlet arranged on the outer wall of the mixing chamber, which are connected to a temperature and pressure control device; the driving devices and the temperature and pressure control device are connected to a control system.

[0019] The working method of the linearly adjustable ejector supercharger in service, the high-pressure working fluid of the ejector flows into the nozzle from one end, reaches high speed at the outlet of the nozzle, induces the low-pressure fluid entering from the fluid inlet section, mixing occurs in the mixing chamber, and then the fluid flows out from the outlet end; the structure of the system under the initial condition remains unchanged;

[0020] When the system operating pressure, temperature or flow parameter changes, the control system drives the nozzle adjusting mechanism and the mixing chamber adjusting mechanism to adjust the longitudinal size of the nozzle and the ejector supercharger through the driving device, and drives the transverse adjusting base to adjust the transverse position of the nozzle through the driving device.

[0021] In some specific supercharger embodiments, the ports of the transverse adjusting base can be provided with tooth structures.

[0022] Specifically, the number of teeth is 4, 6, 8, 10, 12, etc.

[0023] The inner cavity walls of the nozzle and the mixing chamber are made of flexible heat-conducting materials, and the inner cavity walls of the nozzle and the mixing chamber are deformed by the movement of the guide rods of the nozzle adjusting mechanism and the mixing chamber adjusting mechanism to realize the longitudinal linear adjustment of the driving nozzle and the mixing chamber.

[0024] The outer walls of the nozzle and the mixing chamber are provided with guide rod holes, and the number of the guide rod holes is determined according to the number of the guide rods of the nozzle adjusting mechanism and the mixing chamber adjusting mechanism. The number of the guide rods of the nozzle adjusting mechanism and the mixing chamber adjusting mechanism is determined according to the size and operating condition of the supercharger, and the more the number of the guide rods, the higher the adjustment accuracy of the nozzle and the mixing chamber, which is beneficial to improve the performance and applicable operating condition range of the supercharger.

[0025] The connections between the nozzle and the nozzle adjusting mechanism, and the mixing chamber and the mixing chamber adjusting mechanism are provided with seals to prevent leakage when the guide rods move up and down for adjustment. The inside of the first and second sealing cavities is connected to a sealing heat-conducting medium to improve the sealing of the system while exchanging heat.

[0026] The contact between the universal flexible shaft and the transverse adjusting base and the contact between the universal flexible shaft and the guide sleeve are sealed by packing.

[0027] The outlet end of the transverse adjusting base is provided with at least 4 tooth structures, and the size of the tooth structure can be 0.5mm, 0.75mm, 1mm or more.

[0028] The nozzle adjusting mechanism and the mixing chamber adjusting mechanism each independently use a cam shaft rod structure and a universal flexible shaft mechanism.

[0029] Compared with the adjustment method of some current ejectors, the beneficial effects of the present application include:

[0030] (1) The patent is adjusted and controlled by an intelligent control system, and the temperature and pressure control device and the driving device automatically adjust the nozzle adjusting mechanism and the mixing chamber adjusting mechanism and the lateral adjusting base through the adjustment of the flexible heat exchange element deformation mode to adjust the key structural dimensions of the driving nozzle, the suction chamber, the mixing chamber and the diffusion chamber section, and the adjustment of the lateral nozzle outlet position through the propulsion of the driving device, so that the performance of the ejector is optimal under different pressure, temperature and flow and other working parameters, the operation flexibility of the supercharger is improved, the use range of the ejector is expanded, the entraining performance of the ejector is improved, the adjustment process can be observed more clearly, and real-time control is achieved. Compared with most superchargers at present, the patent realizes the double adjustment of the lateral and longitudinal directions of the jet supercharger, and the nozzle and mixing chamber adjusting mechanism of the patent adopts cam and universal flexible shaft, which is simple in structure, convenient to adjust and has good practicability.

[0031] (2) The temperature and pressure control device is used to control the sealed heat exchange medium cavity, the sealed heat exchange medium in the sealed heat exchange cavity is adjusted, the heat exchange of the main working parts of the ejector is carried out, and the equipment can be effectively applied to the condensation prevention and freezing prevention occasions. The sealed heat exchange medium also acts as a pressure maintaining medium, and pressure balance is performed on the main working parts of the ejector and working fluid, so that effective sealing can be achieved.

[0032] (3) The first driving device is used for propelling the lateral adjusting base, and the sealing ring is tightly attached to the seal, so that the adjustment is simple, convenient and more accurate.

[0033] (4) The cam structure has large dragging force, high control precision, simple composite mechanical structure, adjustable angle and can realize adjustment and change of the transmission mode to a certain extent.

[0034] (5) The outlet end of the lateral adjusting base is provided with a tooth-shaped structure, the momentum enhancement element is used to induce the driving fluid to generate a rotational flow, the driving fluid and the entraining fluid are mixed to cause the boundary layer to wrinkle, the mixing area is expanded, and the entraining performance is improved.

[0035] These advantages make the in-service linear adjustment jet supercharger and the working method widely applied to the multiphase supercharging or entraining working occasions with unstable operating conditions in process devices. BRIEF DESCRIPTION OF DRAWINGS

[0036] The application will be further described below in combination with the drawings and examples.

[0037] Figure 1 It is an internal structure diagram of an in-service linear adjustment jet supercharger.

[0038] Figure 2 It is Figure 1 A local enlarged view of A in the figure.

[0039] Figure 3 is Figure 1 Structure diagram of the mixing chamber adjusting mechanism.

[0040] Figure 4 is Figure 1 Structure diagram of the nozzle adjusting mechanism.

[0041] Figure 5 is the perspective view of the camshaft lever mechanism.

[0042] Figure 6 is the internal structure diagram of another in-service linearly adjusted jet supercharger.

[0043] Figure 7 is Figure 6 Partial enlarged view of B in the structure diagram.

[0044] Figure 8 is the front view of the universal flexible shaft mechanism.

[0045] Figure 9 is the right view of the universal flexible shaft mechanism.

[0046] Figure 10 is the perspective view of the transverse adjusting base.

[0047] Figure 1, diffusion chamber, 2, mixing chamber, 2a, first sealed cavity, 2b, mixing chamber outer wall, 2c, mixing chamber inner cavity wall, 2d1, first sealed heat exchange medium inlet, 2d2, second sealed heat exchange medium inlet, 2e1, first sealed heat exchange medium outlet, 2e2, second sealed heat exchange medium outlet, 3, ejecting fluid inlet section, 4, end cover, 5, transverse adjusting base, 5a, tooth, 6, nozzle, 6a, second sealed cavity, 6b, nozzle outer wall, 6c, nozzle inner cavity wall, 7, nozzle adjusting mechanism, 8, nozzle adjusting base, 9, mixing chamber adjusting mechanism, 10a, first sealed heat exchange medium outlet conduit, 10b, second sealed heat exchange medium outlet conduit, 11a, first sealed heat exchange medium inlet conduit, 11b, second sealed heat exchange medium inlet conduit, 12, camshaft, 12a, cam mechanism, 12b, cam, 12c, first guide rod, 13, universal flexible shaft mechanism, 13a, universal flexible shaft, 13b, second guide rod, 13c, guide sleeve, M1, first driving device, M2, second driving device, M3, third driving device, M4, fourth driving device, M5, fifth driving device, M6, sixth driving device, M7, seventh driving device, M8, eighth driving device, M9, ninth driving device. DETAILED DESCRIPTION

[0048] Now, the adjusting process of an in-service linearly adjusted jet supercharger and working method will be further described in combination with the legends. Example 1

[0049] Figure 1 A structural diagram of a linear regulation jet supercharger in service is shown. In the diagram, the linear regulation jet supercharger in service comprises, in sequence, a diffusion chamber 1, a mixing chamber 2, a fluid inlet section 3, an end cover 4, a nozzle 6, a nozzle adjustment mechanism 7, and a mixing chamber adjustment mechanism 9. A transverse adjustment base 5 is inserted into the mixing chamber 2 through the end cover 4. The nozzle 6 is threadedly connected to one end of the transverse adjustment base 5 and to the other end of a nozzle inlet pipe 8. The nozzle outer wall 6b and the nozzle inner cavity wall 6c of the nozzle 6 enclose a second sealed cavity 6a. The mixing chamber outer wall 2b and the mixing chamber inner cavity wall 2c of the mixing chamber 2 enclose a first sealed cavity 2a. The nozzle inner cavity wall 6c and the mixing chamber inner cavity wall 2c are made of flexible heat-conducting material.

[0050] The two nozzle adjustment mechanisms 7 are symmetrically arranged on both sides of the nozzle 6, and the two mixing chamber adjustment mechanisms 9 are symmetrically arranged on both sides of the mixing chamber 2. The nozzle adjustment mechanism 7 and the mixing chamber adjustment mechanism 9 are both camshaft lever mechanisms. Each mixing chamber adjustment mechanism 9 comprises a camshaft 12 and a plurality of cam mechanisms 12a. Each nozzle adjustment mechanism 7 comprises a camshaft 12 and a plurality of cam mechanisms 12a. The cam mechanism 12a comprises a cam 12b and a first guide rod 12c. The cam 12b is driven to rotate by the camshaft 12. One end of the first guide rod 12c is in contact with the outer periphery of the cam 12b, and the other end is inserted into the interior of the first sealed cavity 2a and the second sealed cavity 6a through the mixing chamber outer wall 2b and the nozzle outer wall 6b, respectively, and is in contact with the mixing chamber inner cavity wall 2c and the nozzle inner cavity wall 6c. The end of the first guide rod 12c is in arc shape (as shown in the figure). Figures 2-5

[0051] Six teeth are arranged on the port of the transverse adjustment base 5. The transverse adjustment base 5 is driven by a first driving device M1. The camshafts of the two mixing chamber adjustment mechanisms 9 are connected to a second driving device M2 and a third driving device M3, respectively. The camshafts of the two nozzle adjustment mechanisms 7 are connected to a fourth driving device M4 and a fifth driving device M5, respectively. The first sealed heat exchange medium outlet conduit 10a, the second sealed heat exchange medium outlet conduit 10b, the first sealed heat exchange medium inlet conduit 11a, the second sealed heat exchange medium inlet conduit 11b, the first sealed heat exchange medium inlet 2d1, the second sealed heat exchange medium inlet 2d2, the first sealed heat exchange medium outlet 2e1, and the second sealed heat exchange medium outlet 2e2 arranged on the mixing chamber outer wall 2b are connected to a temperature and pressure control device. The first driving device M1, the second driving device M2, the third driving device M3, the fourth driving device M4, the fifth driving device M5, and the temperature and pressure control device are connected to an intelligent control system.

[0052] ​The first driving device M1, the second driving device M2, the third driving device M3, the fourth driving device M4 and the fifth driving device M5 can be powered by a stepper motor or a servo motor. In this embodiment, a servo motor is used to provide power.

[0053] The number of the nozzle adjusting mechanism 7 and the mixing chamber adjusting mechanism 9 is set according to the actual application. The guide rod holes of the nozzle adjusting mechanism 7 are marked as AP1, AP2, AP3, …, and the guide rod holes of the mixing chamber adjusting mechanism 9 are marked as AM1, AM2, AM3, … (as shown in Figure 3 and 4 ). Embodiment 2

[0054] Figure 6 Another structure diagram of the in-service linearly adjusted jet booster is shown. In the diagram, the in-service linearly adjusted jet booster includes a jet, a nozzle adjusting mechanism 6 and a mixing chamber adjusting mechanism 7. The jet includes a diffusion chamber 1, a mixing chamber 2, a fluid inlet section 3 and an end cover 4 connected in sequence. A transverse adjusting base 5 is inserted into the mixing chamber 2 through the end cover 4. A nozzle 6 arranged inside the transverse adjusting base 5 is threadedly connected to the transverse adjusting base 5 at one end and threadedly connected to a nozzle inlet pipe 8 at the other end. A nozzle outer wall 6b and a nozzle inner cavity wall 6c of the nozzle 6 enclose a second sealing cavity 6a. A mixing chamber outer wall 2b and a mixing chamber inner cavity wall 2c of the mixing chamber 2 enclose a first sealing cavity 2a. The nozzle inner cavity wall 6c and the mixing chamber inner cavity wall 2c are made of flexible heat-conducting material.

[0055] Two nozzle adjusting mechanisms 7 are symmetrically arranged on both sides of the nozzle 6, and two mixing chamber adjusting mechanisms 9 are symmetrically arranged on both sides of the mixing chamber 2. Each nozzle adjusting mechanism 7 includes a plurality of universal flexible shaft mechanisms 13. Each universal flexible shaft mechanism 13 includes a universal flexible shaft 13a and a second guide rod 13b. The second guide rod 13b of the universal flexible shaft mechanism 13 is inserted into the inside of the second sealing cavity 6a through the nozzle outer wall 6b and is in contact with the nozzle inner cavity wall 6c. One end of the universal flexible shaft 13a is connected to a driving device, and the other end is connected to the second guide rod 13b in a sliding sealing manner through a guide sleeve 13c (as shown in Figures 7-9 ). The mixing chamber adjusting mechanism 9 adopts a cam shaft rod mechanism. Each mixing chamber adjusting mechanism 9 includes a cam shaft 12 and a plurality of cam mechanisms 12a. The cam mechanism 12a includes a cam 12b and a first guide rod 12c. The cam 12b rotates under the drive of the cam shaft 12. One end of the first guide rod 12c is in contact with the outer periphery of the cam 12b, and the other end is inserted into the inside of the first sealing cavity 2a through the mixing chamber outer wall 2b and is in contact with the mixing chamber inner cavity wall 2c. The end portions of the second guide rod 13b and the first guide rod 12c adopt an arc structure.

[0056] Six teeth 5a are arranged on the port of the transverse adjusting base 5 (as shown in Figure 10The lateral adjustment base 5 is driven by the first driving device M1, the universal flexible shafts 13a of the plurality of universal flexible shaft mechanisms 13 are respectively connected with the fourth driving device M4, the fifth driving device M5, the sixth driving device M6, the seventh driving device M7, the eighth driving device M8, the ninth driving device M9, and so on. The cam shafts 12 of the two mixing chamber adjustment mechanisms 9 are respectively connected with the second driving device M2 and the third driving device M3. The first sealed heat exchange medium outlet conduit 10a and the second sealed heat exchange medium outlet conduit 10b which are in communication with the second sealed cavity 6a, the first sealed heat exchange medium inlet conduit 11a and the second sealed heat exchange medium inlet conduit 11b, the first sealed heat exchange medium inlet 2d1 and the second sealed heat exchange medium inlet 2d2 which are arranged on the outer wall 2b of the mixing chamber, and the first sealed heat exchange medium outlet 2e1 and the second sealed heat exchange medium outlet 2e2 are all connected with the temperature and pressure control device; the first driving device M1, the second driving device M2, the third driving device M3, the fourth driving device M4, the fifth driving device M5, the sixth driving device M6, the seventh driving device M7, the eighth driving device M8, the ninth driving device M9, and so on, and the temperature and pressure control device are all connected with the intelligent control system.

[0057] The above only describes the preferred embodiments of the present application and is not used to limit the present application. The adjustment mode of the nozzle (6) and the mixing chamber (2) can be a cam shaft rod mechanism or a universal flexible shaft mechanism, or a combination of the two, according to specific working conditions. Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacement to some of the technical features.

[0058] The first driving device M1, the second device M2, the third driving device M3, the fourth driving device M4, the fifth driving device M5, the sixth driving device M6, the seventh driving device M7, the eighth driving device M8, the ninth driving device M9, and so on, can adopt a step motor or a servo motor, and in the present embodiment, a step motor is adopted.

[0059] Method for operating a linearly adjustable injection supercharger in service

[0060] The operation method of the linear regulation ejector in service is as follows: the high-pressure working fluid of the ejector flows into one end of the nozzle 6, reaches high speed at the outlet of the nozzle (can reach supersonic speed for gas or gas-liquid mixed medium, and can reach more than 50 m / s for liquid medium), forms low-pressure fluid, and injects the low-pressure fluid from the inlet section 3 into the mixing chamber 2 to exchange momentum, and then flows out from the outlet end. The structure of the system under the initial condition remains unchanged. When the working condition (parameters such as pressure, temperature or flow) of the system changes, the optimal structure size of the ejector under the working condition is calculated according to the control system, the longitudinal size of the ejector is adjusted by driving the nozzle adjusting mechanism and the mixing chamber adjusting mechanism through a motor or the like, and the transverse position of the ejector is adjusted by driving the transverse adjusting base through a motor or the like, so as to obtain the corresponding structure size under the optimal performance.

[0061] The adjustment process of the ejector is as follows: when the nozzle adjusting mechanism and the mixing chamber adjusting mechanism adopt cam shaft lever mechanism, the cam shaft is driven by a motor or the like, the cam shaft drives the cam to rotate, and the linear motion of the guide rod is converted to extrude the inner cavity wall of the nozzle and the inner cavity wall of the mixing chamber (flexible heat conduction element), so as to realize the longitudinal adjustment of the ejector. One cam shaft is connected with multiple cams, and different numbers of cam guide rod mechanisms are arranged according to the adjustment range and accuracy. The more the number of cams is, the higher the adjustment accuracy is. In addition, when the nozzle adjusting mechanism and the mixing chamber adjusting mechanism are installed, the installation phase angle and the cam shape of each cam on the cam shaft of the expansion section and the contraction section are accurately adjusted, so that the longitudinal adjustment accuracy of the guide rod to the inner cavity wall of the nozzle and the inner cavity wall of the mixing chamber can be flexibly achieved. The transverse adjustment of the position of the nozzle of the ejector is realized by pushing the axial adjusting base 5 to slide left and right through the first driving device M1 (axial stepping motor).

[0062] The outer wall of the nozzle is provided with a sealed heat exchange medium inlet, a sealed heat exchange medium outlet and a guide rod hole, the sealed heat exchange medium inlet and the sealed heat exchange medium outlet are respectively connected with a sealed heat exchange medium inlet conduit and a sealed heat exchange medium outlet conduit, and the guide rod of the nozzle adjusting mechanism is inserted into the inside of the second sealed cavity through the guide rod hole.

[0063] The inner cavity of the mixing chamber includes a suction section, a mixing section and a diffusion section. The outer wall of the mixing chamber is provided with a sealed heat exchange medium inlet and outlet and a guide rod hole, and the guide rod of the mixing chamber adjusting mechanism is inserted into the inside of the first sealed cavity through the guide rod hole.

[0064] The guide rods move up and down to adjust the nozzle and the mixing chamber by the nozzle adjustment mechanism and the mixing chamber adjustment mechanism, which can realize the adjustment of the key structures of the nozzle, the inlet angle and size of the suction section of the mixing chamber, the longitudinal size of the mixing section, and the angle and size of the diffusion section.

[0065] The transverse adjustment base is connected with the driving mechanism such as a stepper motor at the left end surface, and the control signal comes from the intelligent control system.

[0066] All the guide rod holes are equipped with seals to maintain the system's sealing and stability during the up and down movement of the guide rods.

[0067] The number of guide rods and guide rod holes is not limited, and they are set according to the size of the injector and the adjustment range requirements. More accurate adjustment of the depth of each guide rod is needed, especially to keep the end surface of the mixing chamber in a straight line. Enough guide rods need to be inserted into the same distance, and other sections need to be extruded with different depths according to their contraction or expansion.

[0068] The inlet end of the nozzle is connected with the nozzle inlet pipe by threads, and the outlet end is connected with the inner wall of the transverse adjustment base by threads. No seal is needed. The outlet end of the transverse adjustment base adopts a toothed structure. The toothed port structure makes the fluid rotate at the outlet, increases the contact area of the working fluid and the injected fluid, and mixes more fully.

[0069] The transverse adjustment process uses a transverse stepper or servo motor to move the transverse adjustment base. To ensure the system's sealing, a sealing ring is added at the connection between the transverse adjustment base and the end cover for sealing.

[0070] The intelligent control system controls the temperature and pressure control device and the motor, which in turn controls the operation of the adjustable structure of the injector. The process is simpler and more convenient, and real-time monitoring can be realized.

[0071] The mixing chamber adjustment mechanism and the nozzle adjustment mechanism can also use a universal flexible shaft mechanism. The basic working principle of the universal flexible shaft mechanism is to transmit power to multiple different axis directions through a series of flexible connecting parts. The output axis will rotate with the input axis and change position at the same time. In this way, the output axis can allow any rotation and displacement in different directions, and the transverse position adjustment can be converted into longitudinal adjustment.

Claims

1. An in-service linearly adjustable injection turbocharger, characterized in that, The jet booster includes a diffusion chamber (1), a mixing chamber (2), a fluid inlet section (3), and an end cap (4) connected in sequence. A lateral adjustment base (5) is inserted into the mixing chamber (2) through the end cap (4). The jet booster is characterized in that it also includes a nozzle (6), a nozzle adjustment mechanism (7), and a mixing chamber adjustment mechanism (9). One end of the nozzle (6) is connected to the lateral adjustment base (5), and the other end is connected to the nozzle inlet pipe (8). The outer wall (2b) of the mixing chamber (2) and the inner wall (2c) of the mixing chamber (2) form a first sealed cavity (2a), and the outer wall (6b) of the nozzle (6) and the inner wall (6c) of the nozzle form a second sealed cavity (6a). The inner wall (2c) of the mixing chamber and the inner wall (6c) of the nozzle are both made of flexible thermal conductive material. The nozzle adjustment mechanism (7) and the mixing chamber adjustment mechanism (9) each independently adopt a camshaft mechanism or a universal flexible shaft mechanism; The camshaft linkage mechanism includes a camshaft (12) and at least one cam mechanism (12a), the cam mechanism (12a) including a cam (12b) and a first guide rod (12c). When the nozzle adjustment mechanism (7) or the mixing chamber adjustment mechanism (9) adopts a camshaft mechanism, one end of the first guide rod (12c) contacts the outer periphery of the cam (12b), and the other end is inserted into the interior of the first sealing cavity (2a) or the second sealing cavity (6a) and contacts the inner wall of the mixing chamber (2c) or the inner wall of the nozzle (6c); The universal flexible shaft mechanism (13) includes a universal flexible shaft (13a) and a second guide rod (13b). When the nozzle adjustment mechanism (7) or the mixing chamber adjustment mechanism (9) adopts a universal flexible shaft mechanism, one end of the second guide rod (13b) is connected to the universal flexible shaft (13a), and the other end is inserted into the interior of the first sealing chamber (2a) or the second sealing chamber (6a) and contacts the inner wall (2c) of the mixing chamber or the inner wall (6c) of the nozzle. The nozzle adjustment mechanism (7), the mixing chamber adjustment mechanism (9), and the transverse adjustment base (5) are driven by driving devices respectively; The sealed heat exchange medium inlet conduit and sealed heat exchange medium outlet conduit connected to the second sealed cavity (6a), as well as the sealed heat exchange medium inlet and sealed heat exchange medium outlet provided on the outer wall (2b) of the mixing chamber, are all connected to the temperature and pressure control device; the drive device and the temperature and pressure control device are connected to the control system.

2. The in-service linear regulating injection turbocharger according to claim 1, characterized in that, Two nozzle adjustment mechanisms (7) are symmetrically arranged on both sides of the nozzle (6), and two mixing chamber adjustment mechanisms (9) are symmetrically arranged on both sides of the mixing chamber (2).

3. The in-service linear regulating injection turbocharger according to claim 1, characterized in that, The ends of the first guide rod (12c) and the second guide rod (13b) adopt an arc-shaped structure.

4. The in-service linear regulating injection turbocharger according to claim 1, characterized in that, The lateral adjustment base (5), each camshaft mechanism, and each universal flexible shaft mechanism are driven by an independent drive device. Each of the drive devices independently employs a motor, a hydraulic transmission device, or a pneumatic transmission device.

5. The in-service linear regulating injection turbocharger according to claim 1, characterized in that: The longitudinal adjustment booster adjusts the contraction or expansion of the first sealing chamber (2a) and the second sealing chamber (6a) by adjusting the nozzle adjustment mechanism (7) and the mixing chamber adjustment mechanism (9) respectively; the lateral adjustment booster adjusts the distance of the extension of the lateral adjustment base (5).

6. The operating method of an in-service linear regulating injection turbocharger according to claim 1, characterized in that: The high-pressure working fluid of the ejector flows in from one end of the nozzle (6), reaches high speed at the nozzle outlet, and ejects the low-pressure fluid that enters from the ejector fluid inlet section (3), mixes in the mixing chamber, and then flows out from the outlet end. The structure of the system remains unchanged under the initial conditions. When the system operating conditions, pressure, temperature or flow parameters change, the control system drives the nozzle adjustment mechanism (7) and the mixing chamber adjustment mechanism (9) through the drive device to adjust the longitudinal dimensions of the nozzle (6) and the injection booster, and drives the lateral adjustment base (5) through the drive device to adjust the lateral position of the nozzle (6).

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