A dual-station water flow test bench and its use method

Abstract

A double-station water flow test bench is used to measure the flow rate of an injection ring nozzle, and includes a first-station water flow test bench, a second-station water flow test bench, and a control console. The first-station water flow test bench and the second-station water flow test bench are respectively arranged on both sides of the control console and have the same structure. The first-station water flow test bench includes a base frame, a water flow test bench collecting device, and a water flow test bench tooling. The water flow test bench tooling is arranged inside the base frame, and the water flow test bench collecting device is arranged on the side of the base frame. The test bench of the present invention is used to measure the flow rate of an injection ring nozzle. The overall design is reasonable, and the collection of the flow rate of the injection ring nozzle is effectively realized. The collection efficiency is high, the collection is complete, and the weighing precision is high. At the same time, the double-station water flow bench is set, which realizes dual operation of one machine and improves efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of engine testing, specifically to a double-station water flow test bench and a method of using the same, and is particularly used for engine fuel injection ring testing. Background Art

[0002] The fuel injection ring and injector are important components of aerospace engines. For different fuel injection rings, measuring the flow rate of aviation kerosene in the fuel injection ring at a predetermined pressure is one of the key test parameters. In the existing technology, liquid water is usually injected into the fuel injection ring and the water flow rate is converted into the flow rate of aviation kerosene in the fuel injection ring by measuring it. However, the existing water flow test bench has problems with low collection efficiency and incomplete collection of water sprayed through the fuel injection ring, as well as low weighing accuracy.

[0003] In addition, in the existing technology, most water flow test benches are single-station test benches that cannot meet the test requirements. Summary of the Invention

[0004] The technical problem solved by the present invention is: to overcome the shortcomings of the existing technology and provide a double-station water flow test bench, which is used to measure the flow rate of the injection ring nozzle, including a first-station water flow test bench, a second-station water flow test bench and a control console. The first-station water flow test bench and the second-station water flow test bench are respectively arranged on both sides of the control console and have the same structure. The first-station water flow test bench includes a base frame, a water flow test bench collecting device, and a water flow test bench tooling. The water flow test bench tooling is arranged inside the base frame, and the water flow test bench collecting device is arranged on the side of the base frame.

[0005] Furthermore, the test bench includes a water tank, which is located on one side of the first-station water flow test bench, the second-station water flow test bench and the control console.

[0006] Furthermore, the base frame is a rectangular frame structure, with a guide rail fixedly connected inside the base frame, a tooling base provided above the guide rail, the tooling base can move along the guide rail, two tooling columns are fixedly installed on the upper surface of the tooling base, the top of the two tooling columns is fixedly connected to a tooling top plate, a tooling distance adjustment device is fixedly installed on the upper surface of the tooling base, and the tooling distance adjustment device is located between the two tooling columns; a drainage trough is provided in the base frame, and the drainage trough is located below the guide rail; two base water diversion connecting conduit mounting plates are symmetrically arranged relative to the axis of the base frame, and each base diversion conduit mounting plate is symmetrically arranged relative to the axis of the base frame. The two ends of the water connection conduit mounting plate are fixedly connected by two adjacent columns of the base frame. Each base water diversion connection conduit mounting plate is provided with a plurality of base water diversion connection conduits; a water diversion trough is fixedly connected to the outside of each base water diversion connection conduit mounting plate, and a plurality of water diversion trough connection conduits and funnels are provided in the water diversion trough. The number of base water diversion connection conduits, water diversion trough connection conduits and funnels is the same. The base water diversion connection conduit and the water diversion trough connection conduit are connected by a hose, and the funnel is located directly below the water diversion trough connection conduit; a return water trough is provided in the base frame, and the return water trough is located below the drainage trough;

[0007] Furthermore, the tooling distance adjustment device is a hydraulic cylinder or a pneumatic cylinder.

[0008] Furthermore, the water flow test bench collecting device includes a collecting device base, a weighing mechanism mounting seat, a weighing mechanism and a drainage device; the weighing mechanism mounting seat is fixedly installed on the collecting device base, the weighing mechanism is arranged on the weighing mechanism mounting seat, and the drainage device is fixedly connected to the collecting device base and communicated with the weighing mechanism; the collecting device base includes a first column, a second column, a third column, a fourth column, a first beam, a second beam and a longitudinal beam, the first column and the second column are vertically arranged, the first beam is horizontally arranged, the two ends of the first beam are respectively fixedly connected to the first column and the second column, the third column and the fourth column are vertically arranged, the second beam is horizontally arranged, and the two ends of the second beam are respectively It is fixedly connected to the third column and the fourth column, the longitudinal beam is arranged horizontally, and both ends of the longitudinal beam are fixedly connected to the first crossbeam and the second crossbeam respectively; the weighing mechanism mounting seat includes the first column of the weighing mechanism, the second column of the weighing mechanism and the horizontal mounting plate of the weighing mechanism, the first column of the weighing mechanism and the second column of the weighing mechanism are arranged vertically, one end of the first column of the weighing mechanism and the second column of the weighing mechanism are fixedly connected to the first crossbeam and the second crossbeam respectively, and the other end is fixedly connected to the bottom of the horizontal mounting plate of the weighing mechanism; the weighing mechanism includes the first weighing mechanism and the second weighing mechanism, and along the axis direction of the horizontal mounting plate of the weighing mechanism, the first weighing mechanism and the second weighing mechanism are relative to the axis of the horizontal mounting plate of the weighing mechanism The first weighing mechanism and the second weighing mechanism are arranged symmetrically on the horizontal mounting plate of the weighing mechanism; the first weighing mechanism and the second weighing mechanism have the same structure; the first weighing mechanism includes a weighing mechanism mounting seat, a weighing sensor, a liquid collecting tank mounting seat and a water accumulation tank, and there are multiple weighing sensors, liquid collecting tank mounting seats and water accumulation tanks, and the number of weighing sensors, liquid collecting tank mounting seats, water accumulation tanks and funnels is the same, and the water accumulation tanks are connected to the funnel; the bottom of the weighing mechanism mounting seat is fixedly connected to the top of the weighing mechanism horizontal mounting plate, one end of each weighing sensor is connected to the top surface of the weighing mechanism mounting seat, and the other end is connected to the corresponding liquid collecting tank mounting seat, and each liquid collecting tank mounting seat is connected to a water accumulation tank; the drainage device includes a first drainage device and a second A drainage device, along the longitudinal beam axis, the first drainage device and the second drainage device are symmetrically arranged relative to the longitudinal beam axis; the first drainage device and the second drainage device have the same structure; the first drainage device includes a drain valve mounting seat, a drain valve, a liquid collecting tank connecting pipe and a drain valve drain pipe, the bottom of the drain valve mounting seat is fixedly connected to the top of the first column and the third column respectively, there are multiple drain valves, liquid collecting tank connecting pipes and drain valve drain pipes, the number of which is the same as the number of weighing sensors, liquid collecting tank mounting seats and water accumulation tanks, each drain valve is fixedly installed on the drain valve mounting seat, the inlet of each drain valve is connected to the bottom of the corresponding water accumulation tank through the liquid collecting tank connecting pipe, and the outlet is connected to the drain valve drain pipe.

[0009] Furthermore, a water flow test bench tooling is used to receive liquid water sprayed from the nozzle of the oil injection ring. The inner ring of the oil injection ring is provided with an inner nozzle, and the outer ring is provided with an outer nozzle; the water flow test bench tooling includes an oil injection ring fixing device, an inner nozzle collecting assembly, an outer nozzle collecting assembly, and a tooling fixing plate; the oil injection ring fixing device is fixedly connected to the oil injection ring, the inner nozzle collecting assembly is communicated with the inner nozzle of the inner ring of the oil injection ring, the inner nozzle collecting assembly is communicated with the outer nozzle of the oil injection ring, and the inner nozzle collecting assembly and the outer nozzle collecting assembly are fixedly connected to the tooling fixing plate; the oil injection ring fixing device includes an oil injection ring fixing nut, an oil injection ring fixing device connecting frame and an oil injection ring fixing device clamp, and there are multiple oil injection ring fixing device connecting frames, and multiple oil injection ring fixing devices are connected The connecting frame is fixedly connected to the fuel injection ring fixing nut, and each fuel injection ring fixing device connecting frame is provided with a fuel injection ring fixing device clamp, and each fuel injection ring fixing device clamp is detachably connected to the fuel injection ring; the inner nozzle collecting assembly includes an inner nozzle, a hinged connecting seat, an inner nozzle connecting block and an inner nozzle longitudinal moving mechanism, the inner nozzle and the hinged connecting seat are multiple and the number is the same, one end of each inner nozzle is provided with an inner nozzle nozzle connecting port, the other end is provided with an inner nozzle drain port, the inner nozzle nozzle connecting port is connected with the internal nozzle drain port, the internal nozzle nozzle connecting port is connected with the inner nozzle of the inner ring of the fuel injection ring, and an inner nozzle hinge hole is provided on each inner nozzle body, and the hinge bolt of the inner nozzle collecting assembly passes through the inner nozzle The nozzle hinge hole hinges the internal nozzle and the corresponding hinge connection seat, each hinge connection seat is fixedly connected to the internal nozzle connection block through the internal nozzle connection block, the bottom of the internal nozzle connection block is fixedly connected to the internal nozzle longitudinal movement mechanism, and the internal nozzle longitudinal movement mechanism is fixedly connected to the tooling fixed plate through the tooling fixed plate; the cross-section of the internal nozzle nozzle connection port is rectangular, and the cross-section of the internal nozzle drain port is circular; the external nozzle collection assembly includes an external nozzle nozzle, a first external nozzle nozzle connection block, a second external nozzle nozzle connection block, an external nozzle nozzle fixed mounting seat and an external nozzle nozzle longitudinal movement mechanism, there are multiple external nozzles, each external nozzle nozzle is provided with an external nozzle nozzle nozzle connection port at one end, and an external nozzle nozzle is provided at the other end The nozzle drain port is connected to the outer nozzle nozzle connection port and the outer nozzle nozzle drain port, the outer nozzle nozzle connection port is connected to the outer nozzle of the injection ring, and the multiple outer nozzle nozzles are divided into two groups, one group of outer nozzle nozzles is fixedly connected to the first outer nozzle nozzle connection block, and the other group of outer nozzle nozzles is fixedly connected to the second outer nozzle nozzle connection block, the bottom of the first outer nozzle nozzle connection block and the second outer nozzle nozzle connection block are fixedly connected to the outer nozzle nozzle fixed mounting seat, the bottom of the outer nozzle nozzle fixed mounting seat is fixedly connected to the outer nozzle nozzle longitudinal moving mechanism, and the outer nozzle nozzle longitudinal moving mechanism passes through the tooling fixed disk and is fixedly connected to the tooling fixed disk; the cross-section of the outer nozzle nozzle connection port is rectangular, and the cross-section of the outer nozzle nozzle drain port is circular;

[0010] Furthermore, the internal nozzle longitudinal movement mechanism is a cylinder or a hydraulic cylinder.

[0011] Furthermore, the longitudinal movement mechanism of the outer nozzle is a cylinder or a hydraulic cylinder.

[0012] The method for using the above-mentioned dual-station water flow test bench includes the following steps:

[0013] S100, install the test piece fuel injection ring

[0014] Use the injection ring fixing device clamp in the water flow test bench fixture to fix the injection ring of the test piece;

[0015] S200, connect the injection port, inject

[0016] S210. Connect one end of a hose to the fuel injector of the fuel injection ring of the test piece, and the other end to the water tank. A pressure pump is installed in the water tank or in the middle of the hose, and the pressure of the pressure pump is adjustable.

[0017] S220, start the pressure pump, and after water is sprayed out from the inner nozzle and the outer nozzle of the oil spray ring of the test piece, stop the pressure pump;

[0018] S300, tooling installation

[0019] S310, coarse adjustment

[0020] Start the tooling distance adjustment device to make the inner nozzle collection assembly and the outer nozzle collection assembly on the tooling fixing plate in the water flow test bench tooling reach the predetermined position;

[0021] S320, fine-tuning

[0022] S321, start the longitudinal movement mechanism of the outer nozzle in the water flow test bench fixture to move the outer nozzle to a predetermined position, so that the nozzle connection port of the outer nozzle in the water flow test bench fixture is connected and fixed with the outer nozzle of the oil injection ring;

[0023] S322: Activate the longitudinal movement mechanism of the internal nozzle in the water flow test bench fixture to move the internal nozzle to a predetermined position, adjust the hinge point between the internal nozzle in the water flow test bench fixture and the hinged connection seat, and ensure that the nozzle connection port of the internal nozzle in the water flow test bench fixture is connected and fixed to the internal nozzle port of the inner ring of the fuel injection ring;

[0024] S400, measuring the flow rate of the injection ring nozzle

[0025] S410. Adjust the pressure pump to a predetermined pressure, start the pressure pump, and simultaneously start the timing. Water in the water tank enters the fuel injection ring through the fuel injector, is ejected from the inner and outer nozzles of the fuel injection ring, and then enters the inner nozzle and outer nozzle of the water flow test bench fixture. The water then passes through the base water diversion connecting conduit, the water diversion trough connecting conduit, the funnel, and the water storage tank of the water flow test bench collection device. The weighing sensor in the water flow test bench collection device weighs the water in the water storage tank.

[0026] S420: Stop the booster pump and start timing. Remove the hose connected to the fuel injector. Connect one end of a dry hose to the fuel injector and the other end to the booster pump. Adjust the booster pump to a predetermined pressure, start the booster pump, and start timing. High-pressure gas ejects the retained water in the fuel injection ring from the inner and outer nozzles of the fuel injection ring, then into the inner and outer nozzles, and then passes through the base water diversion connecting conduit, the water diversion trough connecting conduit, the funnel, and the water storage tank. The weighing sensor weighs the water in the water storage tank. When the hose leading to the water storage tank stops discharging water, the booster pump is turned off and timing is stopped.

[0027] S430, the final weight weighed by each weighing sensor in step S420 / (the time of step S410+the time of step S420) is the flow rate of each inner nozzle and outer nozzle of the oil injection ring.

[0028] The advantages of the present invention compared with the prior art are:

[0029] 1. The test bench of the present invention is used to measure the flow rate of the injection ring nozzle. The overall design is reasonable and the collection of the flow rate of the injection ring nozzle is effectively realized. The collection efficiency is high, the collection is complete, and the weighing precision is high. At the same time, a double-station water flow table is set to realize dual operation of one machine and improve efficiency.

[0030] 2. The test bench of the present invention has a water flow test bench collecting device, which introduces the water in the water flow test bench sump into the liquid collecting tank through a hose, thereby achieving complete collection of water sprayed by the injection ring and high collection efficiency. At the same time, the weighing sensor weighs the water in the liquid collecting tank, improving the weighing quality and making the overall structure reasonably arranged.

[0031] 3. The test bench and flow test bench tooling of the present invention are aimed at the test piece fuel injection ring. By setting an inner nozzle collecting assembly and an outer nozzle collecting assembly, the inner nozzle nozzle connecting port is connected with the inner nozzle of the inner ring of the fuel injection ring, and the outer nozzle nozzle connecting port is connected with the outer nozzle nozzle drain port, thereby realizing the collection of liquid water in the inner and outer nozzles of the fuel injection ring. The collection is complete and the collection efficiency is high. At the same time, the inner nozzle collecting assembly and the outer nozzle collecting assembly are modularly designed with a simple structure. In addition, the inner nozzle collecting assembly is hingedly set. After the outer nozzle collecting assembly is connected and fixed to the outer nozzle of the fuel injection ring, the inner nozzle collecting assembly is connected to the inner nozzle of the inner ring of the fuel injection ring through hinge adjustment. It is suitable for a variety of fuel injection ring test pieces and has a wide range of applications. Finally, by setting an inner nozzle longitudinal moving mechanism and an outer nozzle longitudinal moving mechanism, the height of the inner nozzle collecting assembly and the outer nozzle collecting assembly can be adjusted. In combination with the fuel injection ring fixing device, it is suitable for a variety of fuel injection ring test pieces, and the range of application is further expanded. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1This is a three-dimensional perspective view of the dual-station water flow test bench of the present invention from one angle.

[0033] Figure 2 This is a three-dimensional stereoscopic view of the dual-station water flow test bench of the present invention from another angle.

[0034] Figure 3 for Figure 1 Magnified view of part A in the middle.

[0035] Figure 4 for Figure 1 Magnified view of part B in the middle.

[0036] Figure 5 This is a three-dimensional diagram of the water flow test bench collecting device in the double-station water flow test bench of the present invention from a first perspective.

[0037] Figure 6 This is a stereoscopic view of the water flow test bench collecting device in the double-station water flow test bench of the present invention from a second perspective.

[0038] Figure 7 for Figure 6 Magnified view of middle C.

[0039] Figure 8 It is a schematic diagram of the three-dimensional structure of the water flow test bench tooling in the double-station water flow test bench of the present invention.

[0040] Figure 9 It is a schematic diagram of the three-dimensional structure of the inner nozzle collection component of the water flow test bench tooling in the double-station water flow test bench of the present invention from one perspective.

[0041] Figure 10 This is a schematic diagram of the three-dimensional structure of the inner nozzle collection component of the water flow test bench tooling in the double-station water flow test bench of the present invention from another perspective.

[0042] Figure 11 It is a schematic diagram of the three-dimensional structure of the internal nozzle of the water flow test bench tooling in the double-station water flow test bench of the present invention.

[0043] Figure 12 It is a schematic diagram of the three-dimensional structure of the outer nozzle collection component of the water flow test bench tooling in the double-station water flow test bench of the present invention.

[0044] Figure 13 It is a schematic diagram of the three-dimensional structure of the outer nozzle of the water flow test bench tooling in the double-station water flow test bench of the present invention.

[0045] Figure 14 It is a structural schematic diagram of the fuel injector in the double-station water flow test bench of the present invention. DETAILED DESCRIPTION

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to 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, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0047] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "abutted" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0048] like Figure 1-4 As shown, a double-station water flow test bench is used to measure the flow rate of the injection ring nozzle, including a first-station water flow test bench 10, a second-station water flow test bench 20 and a control console 30. The first-station water flow test bench 10 and the second-station water flow test bench 20 are respectively arranged on both sides of the control console 30 and have the same structure, including a base frame 100, a water flow test bench collecting device 200, and a water flow test bench tooling 300. The water flow test bench tooling 300 is arranged inside the base frame 100, and the water flow test bench collecting device 200 is arranged on the side of the base frame 100.

[0049] Preferably, a water tank 40 is included, and the water tank is located on one side of the first-station water flow test bench 10 , the second-station water flow test bench 20 and the control console 30 .

[0050] The base frame 100 is a rectangular parallelepiped frame structure. A guide rail 110 is fixedly connected to the base frame 100. A tooling base 120 is provided above the guide rail 110. The tooling base 120 is movable along the guide rail 110. Two tooling columns 130 are fixedly mounted on the upper surface of the tooling base 120. A tooling top plate 140 is fixedly connected to the top of the two tooling columns 130. A tooling distance adjustment device 150 is fixedly mounted on the upper surface of the tooling base 120. The tooling distance adjustment device 150 is located between the two tooling columns 130. A drainage trough 160 is provided in the base frame 100 and is located below the guide rail 110.

[0051] The two base water diversion connecting conduit mounting plates 170 are symmetrically arranged relative to the axis of the base frame 100, and the two ends of each base water diversion connecting conduit mounting plate 170 are fixedly connected through two adjacent columns of the base frame 100. Each base water diversion connecting conduit mounting plate 170 is provided with a plurality of base water diversion connecting conduits 171.

[0052] Each base water diversion connecting conduit mounting plate 170 is fixedly connected to a water diversion trough 180 on its outer side. Several water diversion trough connecting conduits 181 and funnels 182 are provided within the water diversion trough 180. The base water diversion connecting conduits 171, the water diversion trough connecting conduits 181, and the funnels 182 are identical in number. The base water diversion connecting conduits 171 and the corresponding water diversion trough connecting conduits 181 are connected via hoses. The funnels 182 are located directly below the corresponding water diversion trough connecting conduits 181. A return water trough 190 is provided within the base frame 100 and is located below the drainage trough 160.

[0053] There are two sets of water flow test bench collecting devices with the same structure, which are symmetrically arranged at the sides of the bottom of the base frame 100.

[0054] like Figure 5-7 As shown, the water flow test bench collecting device includes a collecting device base 210, a weighing mechanism mounting seat 220, a weighing mechanism 230 and a drainage device 240; the weighing mechanism mounting seat 220 is fixedly installed on the collecting device base 210, the weighing mechanism 230 is arranged on the weighing mechanism mounting seat 220, and the drainage device 240 is fixedly connected to the collecting device base 210 and communicated with the weighing mechanism 230.

[0055] The collecting device base 210 includes a first column 211, a second column 212, a third column 213, a fourth column 214, a first crossbeam 215, a second crossbeam 216 and a longitudinal beam 217. The first column 211 and the second column 212 are vertically arranged, the first crossbeam 215 is horizontally arranged, and the two ends of the first crossbeam 215 are respectively fixedly connected to the first column 211 and the second column 212. The third column 213 and the fourth column 214 are vertically arranged, the second crossbeam 216 is horizontally arranged, and the two ends of the second crossbeam 216 are respectively fixedly connected to the third column 213 and the fourth column 214. The longitudinal beam 217 is horizontally arranged, and the two ends of the longitudinal beam 217 are respectively fixedly connected to the first crossbeam 215 and the second crossbeam 216.

[0056] The weighing mechanism mounting seat 220 includes a first weighing mechanism column 221, a second weighing mechanism column 222 and a weighing mechanism horizontal mounting plate 223. The first weighing mechanism column 221 and the second weighing mechanism column 222 are vertically arranged, and one end of the first weighing mechanism column 221 and the second weighing mechanism column 222 are fixedly connected to the first beam 215 and the second beam 216 respectively, and the other ends are fixedly connected to the bottom of the weighing mechanism horizontal mounting plate 223.

[0057] The weighing mechanism 230 includes a first weighing mechanism 230-1 and a second weighing mechanism 230-2. Along the axis direction of the weighing mechanism horizontal mounting plate 223, the first weighing mechanism 230-1 and the second weighing mechanism 230-2 are symmetrically arranged on the weighing mechanism horizontal mounting plate 223 relative to the axis of the weighing mechanism horizontal mounting plate 223.

[0058] The first weighing mechanism 230 - 1 and the second weighing mechanism 230 - 2 have the same structure.

[0059] The first weighing mechanism 230-1 includes a weighing mechanism mounting seat 231, a weighing sensor 232, a liquid collecting tank mounting seat 233 and a water storage tank 234. There are multiple weighing sensors 232, liquid collecting tank mounting seat 233 and water storage tank 234, and the number of weighing sensors 232, liquid collecting tank mounting seat 233 and water storage tank 234 is the same as the number of funnels 182, and the water storage tank 234 is connected to the funnel 182 through a hose.

[0060] The bottom of the weighing mechanism mounting seat 231 is fixedly connected to the top of the weighing mechanism horizontal mounting plate 223. One end of each weighing sensor 232 is connected to the top surface of the weighing mechanism mounting seat 231, and the other end is connected to the corresponding liquid collecting tank mounting seat 233. Each liquid collecting tank mounting seat 233 is connected to a water storage tank 234.

[0061] The drainage device 240 includes a first drainage device 240 - 1 and a second drainage device 240 - 2 . Along the axis of the longitudinal beam 217 , the first drainage device 240 - 1 and the second drainage device 240 - 2 are symmetrically arranged relative to the axis of the longitudinal beam 217 .

[0062] The first drainage device 240 - 1 and the second drainage device 240 - 2 have the same structure.

[0063] The first drainage device 240-1 includes a drain valve mounting seat 241, a drain valve 242, a liquid collecting tank connecting pipe 243 and a drain valve drain pipe 244. The bottom of the drain valve mounting seat 241 is fixedly connected to the top of the first column 211 and the third column 213 respectively. There are multiple drain valves 242, liquid collecting tank connecting pipes 243 and drain valve drain pipes 244, and the number is the same as the number of the weighing sensor 232, liquid collecting tank mounting seat 233 and water accumulation tank 234. Each drain valve 242 is fixedly mounted on the drain valve mounting seat 241. The inlet of each drain valve 242 is connected to the bottom of the corresponding water accumulation tank 234 through the liquid collecting tank connecting pipe 243, and the outlet is connected to the drain valve drain pipe.

[0064] like Figure 8-14 As shown, the water flow test bench tooling is used to receive liquid water sprayed from the nozzle of the oil injection ring 1. The oil injection ring 1 is provided with a plurality of oil injectors 2. The inner ring of the oil injection ring 1 is provided with an inner nozzle, and the outer ring is provided with an outer nozzle; the water flow test bench tooling includes an oil injection ring fixing device 310, an inner nozzle collecting assembly 320, an outer nozzle collecting assembly 330, and a tooling fixing plate 340; the oil injection ring fixing device 310 is fixedly connected to the oil injection ring 1, the inner nozzle collecting assembly 320 is communicated with the inner nozzle of the inner ring of the oil injection ring 1, the inner nozzle collecting assembly 320 is communicated with the outer nozzle of the oil injection ring 1, the inner nozzle collecting assembly 320 and the outer nozzle collecting assembly 330 are fixedly connected to the tooling fixing plate 340, and the bottom of the tooling fixing plate 340 is fixedly connected to the tooling distance adjustment device 150.

[0065] The oil spray ring fixing device 310 includes an oil spray ring fixing nut 311, an oil spray ring fixing device connecting frame 312 and an oil spray ring fixing device clamp 313. There are multiple oil spray ring fixing device connecting frames 312, and multiple oil spray ring fixing device connecting frames 312 are fixedly connected to the oil spray ring fixing nut 311. Each oil spray ring fixing device connecting frame 312 is provided with an oil spray ring fixing device clamp 313. Each oil spray ring fixing device clamp 313 is detachably connected to the oil spray ring 1, and the oil spray ring fixing nut 311 is fixedly connected to the bottom of the tooling top plate 140.

[0066] The inner nozzle collection assembly 320 includes an inner nozzle 321, an articulated connection seat 325, an inner nozzle connection block 327 and an inner nozzle longitudinal movement mechanism 328. The inner nozzle 321 and the articulated connection seat 325 are multiple and the number is the same. Each of the inner nozzles 321 is provided with an inner nozzle nozzle connection port 322 at one end and an inner nozzle drain port 323 at the other end. The inner nozzle nozzle connection port 322 is connected to the inner nozzle drain port 323. The inner nozzle drain port 323 is connected to the base water diversion connection conduit 171 through a hose. The inner nozzle nozzle connection port 322 is connected to the inner nozzle of the injection ring 1 The inner nozzle of the ring is connected, and an inner nozzle hinge hole 324 is provided on the body of each inner nozzle 321. The inner nozzle collection assembly hinge bolt 326 passes through the inner nozzle hinge hole 324 to hinge the inner nozzle 321 and the corresponding hinge connection seat 325. Each hinge connection seat 325 passes through the inner nozzle connection block 327 and is fixedly connected to the inner nozzle connection block 327. The bottom of the inner nozzle connection block 327 is fixedly connected to the inner nozzle longitudinal moving mechanism 328. The inner nozzle longitudinal moving mechanism 328 passes through the tooling fixing plate 340 and is fixedly connected to the tooling fixing plate 340.

[0067] Preferably, there are five internal nozzles 321 and five hinged connection seats 325.

[0068] Preferably, the cross section of the internal nozzle spout connection port 322 is rectangular, and the cross section of the internal nozzle drain port 323 is circular.

[0069] The external nozzle collection assembly 330 includes an external nozzle 331, a first external nozzle connection block 334, a second external nozzle connection block 335, an external nozzle fixed mounting seat 336 and an external nozzle longitudinal moving mechanism 337. There are multiple external nozzles 331, and each of the external nozzles 331 is provided with an external nozzle nozzle connection port 332 at one end and an external nozzle nozzle drain port 333 at the other end. The external nozzle nozzle connection port 332 is connected to the external nozzle nozzle drain port 333, and the external nozzle nozzle drain port 333 is connected to the base water diversion connection conduit 171. The external nozzle nozzle nozzle connection port 332 is connected to the injection ring 1 is connected, and the multiple external nozzle nozzles 331 are divided into two groups, one group of external nozzle nozzles 331 is fixedly connected to the first external nozzle nozzle connecting block 334, and the other group of external nozzle nozzles 331 is fixedly connected to the second external nozzle nozzle connecting block 335, the bottoms of the first external nozzle nozzle connecting block 334 and the second external nozzle nozzle connecting block 335 are fixedly connected to the external nozzle nozzle fixed mounting seat 336, the bottom of the external nozzle nozzle fixed mounting seat 336 is fixedly connected to the external nozzle nozzle longitudinal moving mechanism 337, and the external nozzle nozzle longitudinal moving mechanism 337 passes through the tooling fixed plate 340 and is fixedly connected to the tooling fixed plate 340.

[0070] Preferably, each group of outer nozzles 331 is 4.

[0071] Preferably, the cross section of the external nozzle nozzle connection port 332 is rectangular, and the cross section of the external nozzle nozzle drainage port 333 is circular.

[0072] Preferably, the tooling distance adjustment device 150 is a hydraulic cylinder or a pneumatic cylinder.

[0073] Preferably, the drain valve 242 is a solenoid valve.

[0074] Preferably, the internal nozzle longitudinal movement mechanism 328 is a pneumatic cylinder or a hydraulic cylinder.

[0075] Preferably, the outer nozzle longitudinal movement mechanism 337 is a cylinder or a hydraulic cylinder.

[0076] The method for using the test bench for measuring the flow rate of the fuel injection ring nozzle comprises the following steps:

[0077] S100, install the test piece fuel injection ring

[0078] Use the injection ring fixing device clamp 313 to fix the test piece injection ring 1;

[0079] S200, connect the injection port, inject

[0080] S210, using a hose to connect one end to the injector 2 of the test piece's injection ring 1 and the other end to the water tank, wherein a pressure pump is provided in the water tank 40 or in the middle of the hose, and the pressure of the pressure pump is adjustable;

[0081] S220, starting the pressure pump to spray water from the inner nozzle and the outer nozzle of the oil spray ring 1 of the test piece, and then stopping the pressure pump;

[0082] S300, tooling installation

[0083] S310, coarse adjustment

[0084] Activate the tooling distance adjustment device 150 to position the inner nozzle collection assembly 320 and the outer nozzle collection assembly on the tooling fixing plate 340 to a predetermined position;

[0085] S320, fine-tuning

[0086] S321, start the outer nozzle longitudinal movement mechanism 337 to move the outer nozzle 331 to a predetermined position, so that the outer nozzle nozzle connection port 332 is connected and fixed with the outer nozzle of the fuel injection ring 1;

[0087] S322, start the internal nozzle longitudinal movement mechanism 328 to move the internal nozzle 321 to a predetermined position, adjust the hinge point between the internal nozzle 321 and the hinge connection seat 325, and connect the internal nozzle nozzle connection port 322 to the inner nozzle of the inner ring of the fuel injection ring;

[0088] S400, measuring the flow rate of the injection ring nozzle

[0089] S410: Adjust the pressure pump to a predetermined pressure, start the pressure pump, and simultaneously start the timing. Water in the water tank 40 enters the fuel injection ring 1 through the fuel injector 2, is ejected from the inner and outer nozzles of the fuel injection ring 1, and then enters the internal nozzle 321 and the outer nozzle 331. The water then passes through the base water diversion connecting conduit 171, the water diversion trough connecting conduit 181, the funnel 182, and the water storage tank 234. The weighing sensor 232 weighs the water in the water storage tank 234.

[0090] S420, stop the pressure pump and start timing, remove the hose connected to the injector 2, connect one end of a dry hose to the injector 2, and connect the other end to the pressure pump. Adjust the pressure pump to a predetermined pressure, start the pressure pump and start timing. The high-pressure gas will spray the retained water in the injection ring 1 from the inner nozzle and outer nozzle of the injection ring 1, and then enter the inner nozzle 321 and the outer nozzle 331, and then pass through the base water diversion connecting pipe 171, the water diversion trough connecting pipe 181, the funnel 182 and the water storage tank 234 in sequence. The weighing sensor 232 weighs the water in the water storage tank 234. When the hose introduced into the water storage tank 234 stops discharging water, turn off the pressure pump and stop timing.

[0091] In steps S430 and S420 , the final weighing weight of each weighing sensor 232 / (the time of step S410 + the time of step S420 ) is the flow rate of each inner nozzle and outer nozzle of the injection ring 1 .

[0092] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0093] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A double-station water flow test bench for measuring the flow rate of the injection ring nozzle, characterized by: It includes a first-station water flow test bench, a second-station water flow test bench and a control console. The first-station water flow test bench and the second-station water flow test bench are respectively arranged on both sides of the control console and have the same structure. The first-station water flow test bench includes a base frame, a water flow test bench collecting device, and a water flow test bench tooling. The water flow test bench tooling is arranged inside the base frame, and the water flow test bench collecting device is arranged on the side of the base frame; The test bench includes a water tank, which is located on one side of the first station water flow test bench, the second station water flow test bench and the control console; The base frame is a rectangular parallelepiped frame structure, with a guide rail fixedly connected inside the base frame, a tooling base provided above the guide rail, the tooling base being movable along the guide rail, two tooling columns fixedly installed on the upper surface of the tooling base, a tooling top plate fixedly connected to the top of the two tooling columns, a tooling distance adjustment device fixedly installed on the upper surface of the tooling base, and the tooling distance adjustment device being located between the two tooling columns; A drainage trough is provided in the base frame and is located below the guide rail; Two base water diversion connection conduit mounting plates are symmetrically arranged relative to the axis of the base frame, and both ends of each base water diversion connection conduit mounting plate are fixedly connected through two adjacent columns of the base frame. Each base water diversion connection conduit mounting plate is provided with a plurality of base water diversion connection conduits; The outer side of each base water diversion connection pipe mounting plate is fixedly connected to a water diversion trough, and a number of water diversion trough connection pipes and funnels are arranged in the water diversion trough. The number of base water diversion connection pipes, water diversion trough connection pipes and funnels is the same. The base water diversion connection pipe and the water diversion trough connection pipe are connected by a hose, and the funnel is located directly below the water diversion trough connection pipe. A return water trough is provided in the base frame and is located below the drainage trough; A water flow test bench fixture is used to receive liquid water sprayed from the nozzles of the oil injection ring. The inner ring of the oil injection ring is provided with an inner nozzle, and the outer ring is provided with an outer nozzle. The water flow test bench fixture includes an oil injection ring fixture, an inner nozzle collection assembly, an outer nozzle collection assembly, and a fixture fixing plate. The oil injection ring fixture is fixedly connected to the oil injection ring, the inner nozzle collection assembly is connected to the inner nozzle of the inner ring of the oil injection ring, the inner nozzle collection assembly is connected to the inner nozzle of the oil injection ring, and the inner nozzle collection assembly and the outer nozzle collection assembly are fixedly connected to the fixture fixing plate. The fuel injection ring fixing device includes a fuel injection ring fixing nut, a fuel injection ring fixing device connecting frame and a fuel injection ring fixing device clamp. There are multiple fuel injection ring fixing device connecting frames, and the multiple fuel injection ring fixing device connecting frames are fixedly connected to the fuel injection ring fixing nut. Each fuel injection ring fixing device connecting frame is provided with a fuel injection ring fixing device clamp, and each fuel injection ring fixing device clamp is detachably connected to the fuel injection ring. The internal nozzle collection assembly includes an internal nozzle, an articulated connecting seat, an internal nozzle connecting block and an internal nozzle longitudinal movement mechanism. There are multiple internal nozzles and articulated connecting seats and the same number. An internal nozzle nozzle connecting port is provided at one end of each internal nozzle, and an internal nozzle drain port is provided at the other end. The internal nozzle nozzle connecting port is connected to the internal nozzle drain port, and the internal nozzle nozzle connecting port is connected to the internal nozzle of the inner ring of the injection ring. An internal nozzle hinge hole is provided on each internal nozzle body. The articulated bolt of the internal nozzle collection assembly passes through the internal nozzle hinge hole to articulate the internal nozzle and the corresponding articulated connecting seat. Each articulated connecting seat passes through the internal nozzle connecting block and is fixedly connected to the internal nozzle connecting block. The bottom of the internal nozzle connecting block is fixedly connected to the internal nozzle longitudinal movement mechanism. The internal nozzle longitudinal movement mechanism passes through the tooling fixing plate and is fixedly connected to the tooling fixing plate. The cross section of the internal nozzle spout connection port is rectangular, and the cross section of the internal nozzle drain port is circular; The external nozzle collecting assembly includes an external nozzle nozzle, a first external nozzle nozzle connecting block, a second external nozzle nozzle connecting block, an external nozzle nozzle fixed mounting seat and an external nozzle nozzle longitudinal moving mechanism, there are multiple external nozzle nozzles, one end of each external nozzle nozzle is provided with an external nozzle nozzle nozzle connecting port, the other end is provided with an external nozzle nozzle drain port, the external nozzle nozzle nozzle connecting port is connected with the external nozzle of the injection ring, the multiple external nozzle nozzles are divided into two groups, one group of external nozzle nozzles is fixedly connected to the first external nozzle nozzle connecting block, the other group of external nozzle nozzles is fixedly connected to the second external nozzle nozzle connecting block, the bottom of the first external nozzle nozzle connecting block and the second external nozzle nozzle connecting block are fixedly connected to the external nozzle nozzle fixed mounting seat, the bottom of the external nozzle nozzle fixed mounting seat is fixedly connected to the external nozzle nozzle longitudinal moving mechanism, and the external nozzle nozzle longitudinal moving mechanism is fixedly connected to the tooling fixed disk through the tooling fixed disk; The cross section of the nozzle connection port of the outer nozzle is rectangular, and the cross section of the discharge port of the outer nozzle is circular.

2. The test bench according to claim 1, characterized in that: The tooling distance adjustment device is a hydraulic cylinder or a pneumatic cylinder.

3. The test bench according to claim 1, characterized in that: The water flow test bench collecting device includes a collecting device base, a weighing mechanism mounting base, a weighing mechanism and a drainage device.

4. The test bench according to claim 3, characterized in that: The weighing mechanism mounting seat is fixedly installed on the collecting device base, the weighing mechanism is arranged on the weighing mechanism mounting seat, the drainage device is fixedly connected to the collecting device base and is in communication with the weighing mechanism; the collecting device base includes a first column, a second column, a third column, a fourth column, a first crossbeam, a second crossbeam and a longitudinal beam, the first column and the second column are vertically arranged, the first crossbeam is horizontally arranged, two ends of the first crossbeam are respectively fixedly connected to the first column and the second column, the third column and the fourth column are vertically arranged, the second crossbeam is horizontally arranged, two ends of the second crossbeam are respectively fixedly connected to the third column and the fourth column, the longitudinal beam is horizontally arranged, and two ends of the longitudinal beam are respectively fixedly connected to the first crossbeam and the second beam; The weighing mechanism mounting seat includes a first column of the weighing mechanism, a second column of the weighing mechanism and a horizontal mounting plate of the weighing mechanism. The first column of the weighing mechanism and the second column of the weighing mechanism are vertically arranged. One end of the first column of the weighing mechanism and the second column of the weighing mechanism are fixedly connected to the first beam and the second beam respectively, and the other end is fixedly connected to the bottom of the horizontal mounting plate of the weighing mechanism. The weighing mechanism includes a first weighing mechanism and a second weighing mechanism, and the first weighing mechanism and the second weighing mechanism are symmetrically arranged on the weighing mechanism horizontal mounting plate along the axis direction of the weighing mechanism horizontal mounting plate relative to the axis of the weighing mechanism horizontal mounting plate; The first weighing mechanism and the second weighing mechanism have the same structure; The first weighing mechanism includes a weighing mechanism mounting seat, a weighing sensor, a liquid collecting tank mounting seat and a water accumulation tank. There are multiple weighing sensors, liquid collecting tank mounting seats and water accumulation tanks, and the number of weighing sensors, liquid collecting tank mounting seats and water accumulation tanks is the same as the number of funnels. The water accumulation tank is connected to the funnel. The bottom of the weighing mechanism mounting seat is fixedly connected to the top of the weighing mechanism horizontal mounting plate. One end of each weighing sensor is connected to the top surface of the weighing mechanism mounting seat, and the other end is connected to the corresponding liquid collecting tank mounting seat. Each liquid collecting tank mounting seat is connected to a water storage tank. The drainage device includes a first drainage device and a second drainage device, and along the longitudinal beam axis, the first drainage device and the second drainage device are symmetrically arranged relative to the longitudinal beam axis; The first drainage device and the second drainage device have the same structure; The first drainage device includes a drain valve mounting seat, a drain valve, a liquid collecting tank connecting pipe and a drain valve drain pipe. The bottom of the drain valve mounting seat is fixedly connected to the top of the first column and the third column respectively. There are multiple drain valves, liquid collecting tank connecting pipes and drain valve drain pipes, and the number is the same as the number of weighing sensors, liquid collecting tank mounting seats and water accumulation tanks. Each drain valve is fixedly installed on the drain valve mounting seat. The inlet of each drain valve is connected to the bottom of the corresponding water accumulation tank through the liquid collecting tank connecting pipe, and the outlet is connected to the drain valve drain pipe.

5. The test bench according to claim 1, characterized in that: The internal nozzle longitudinal movement mechanism is a cylinder or a hydraulic cylinder.

6. The test bench according to claim 1, characterized in that: The longitudinal movement mechanism of the outer nozzle is a cylinder or a hydraulic cylinder.

7. A method for using the dual-station water flow test bench according to any one of claims 1 to 6, characterized in that: The steps include: S100, install the test piece fuel injection ring Use the injection ring fixing device clamp in the water flow test bench fixture to fix the injection ring of the test piece; S200, connect the injection port, inject S210. Connect one end of a hose to the fuel injector of the fuel injection ring of the test piece, and the other end to the water tank. A pressure pump is installed in the water tank or in the middle of the hose, and the pressure of the pressure pump is adjustable. S220, start the pressure pump, and after water is sprayed out from the inner nozzle and the outer nozzle of the oil spray ring of the test piece, stop the pressure pump; S300, tooling installation S310, coarse adjustment Start the tooling distance adjustment device to make the inner nozzle collection assembly and the outer nozzle collection assembly on the tooling fixing plate in the water flow test bench tooling reach the predetermined position; S320, fine-tuning S321, start the longitudinal movement mechanism of the outer nozzle in the water flow test bench fixture to move the outer nozzle to a predetermined position, so that the nozzle connection port of the outer nozzle in the water flow test bench fixture is connected and fixed with the outer nozzle of the oil injection ring; S322: Activate the longitudinal movement mechanism of the internal nozzle in the water flow test bench fixture to move the internal nozzle to a predetermined position, adjust the hinge point between the internal nozzle in the water flow test bench fixture and the hinged connection seat, and ensure that the nozzle connection port of the internal nozzle in the water flow test bench fixture is connected and fixed to the internal nozzle port of the inner ring of the fuel injection ring; S400, measuring the flow rate of the injection ring nozzle S410. Adjust the pressure pump to a predetermined pressure, start the pressure pump, and simultaneously start the timing. Water in the water tank enters the fuel injection ring through the fuel injector, is ejected from the inner and outer nozzles of the fuel injection ring, and then enters the inner nozzle and outer nozzle of the water flow test bench fixture. The water then passes through the base water diversion connecting conduit, the water diversion trough connecting conduit, the funnel, and the water storage tank of the water flow test bench collection device. The weighing sensor in the water flow test bench collection device weighs the water in the water storage tank. S420: Stop the booster pump and start timing. Remove the hose connected to the fuel injector. Connect one end of a dry hose to the fuel injector and the other end to the booster pump. Adjust the booster pump to a predetermined pressure, start the booster pump, and start timing. High-pressure gas ejects the retained water in the fuel injection ring from the inner and outer nozzles of the fuel injection ring, then into the inner and outer nozzles, and then passes through the base water diversion connecting conduit, the water diversion trough connecting conduit, the funnel, and the water storage tank. The weighing sensor weighs the water in the water storage tank. When the hose leading to the water storage tank stops discharging water, the booster pump is turned off and timing is stopped. S430, the final weight weighed by each weighing sensor in step S420 / (the time of step S410+the time of step S420) is the flow rate of each inner nozzle and outer nozzle of the oil injection ring.

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