Water spraying assembly and water spraying cooling device

Abstract

The invention provides a water spraying assembly and a water spraying cooling device, and relates to the technical field of high-temperature gas cooling, the water spraying assembly comprises a water spraying pipe, a pipe sleeve, an adjuster and an elastic piece, the water spraying pipe is provided with a containing cavity and comprises a mounting section and a water spraying section which are communicated, and a water inlet channel is formed between the inner circumferential surface of the pipe sleeve and the outer circumferential surface of the mounting section; the mounting section is provided with a water inlet communicated with the water inlet channel, and the water spraying section is provided with an adjustable spraying hole group; the adjustor is slidably matched in the containing cavity in the first direction and divides the containing cavity into a first cavity and a second cavity, the water inlet is communicated with the first cavity, the adjustor is provided with a first position and a second position, and the adjustor blocks the adjustable spray hole set at the first position and blocks the adjustable spray hole set at the second position. When the adjuster slides from the first position to the second position, the communication area of the adjustable spray hole group and the first cavity is gradually increased or increased in a stepped manner; the elastic piece is matched in the second cavity and presses the regulator towards the first position. The water spraying flow can be adjusted in a graded mode by adjusting the spraying holes, and the overall structure is simple.

Description

Technical Field

[0001] The present invention relates to the technical field of high-temperature gas cooling, and particularly relates to a water spraying assembly and a water spraying cooling device. Background Art

[0002] The temperature of the exhaust gas after combustion of a gas turbine and an aero-engine can reach up to 2000°C. In the high-temperature test of the combustion chamber of a gas turbine and an aero-engine, it is necessary to reduce the discharged high-temperature gas to about 300°C. Therefore, in the whole-machine commissioning test, a water spraying cooling device is often used to cool the tail gas to protect the pipelines and equipment at the rear end.

[0003] To avoid the phenomena of insufficient cooling or excessive water spraying, it is necessary to adjust the cooling water spraying amount according to the gas flow rate or temperature during the test. Therefore, the related technology adopts a centrifugal atomization cooling method. However, this cooling method needs to increase the number of water inlet pipelines and supporting equipment to achieve the function of grading the adjustment of the water spraying flow rate, increasing the complexity of control and the equipment cost. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to some extent.

[0005] For this purpose, an embodiment of one aspect of the present invention provides a water spraying assembly, which can achieve the function of grading the adjustment of the water spraying flow rate by adjusting its own spray hole mode, with a simple overall structure and low cost.

[0006] An embodiment of another aspect of the present invention provides a water spraying cooling device.

[0007] A water spraying assembly according to an embodiment of the present invention includes a water spraying pipe, a pipe sleeve, a regulator and an elastic member. The water spraying pipe has a receiving cavity and includes a connected installation section and a water spraying section. The pipe sleeve is sleeved on the installation section, and an inlet channel is formed between the inner peripheral surface of the pipe sleeve and the outer peripheral surface of the installation section. The installation section is provided with a water inlet communicating with the inlet channel, and the water spraying section is provided with an adjustable spray hole group. The regulator is slidably fitted in the receiving cavity along a first direction and divides the receiving cavity into a first chamber and a second chamber. The water inlet is communicated with the first chamber. The regulator has a first position and a second position. The regulator blocks the adjustable spray hole group at the first position, and when the regulator slides from the first position to the second position, the communication area between the adjustable spray hole group and the first chamber gradually increases or increases step by step. The elastic member is fitted in the second chamber and presses the regulator towards the first position.

[0008] According to the water spray assembly of the embodiment of the present invention, the water inlet channel and the water inlet hole cooperate to guide the cooling water to the first chamber. Since the regulator can slide in the accommodating chamber to switch between the first position and the second position, the connecting area between the adjustable spray hole group and the first chamber is changed to adjust the external water spray amount of the first chamber, thereby realizing multi-stage water spray adjustment of the water spray assembly, thereby matching the cooling requirements of high-temperature combustion gases with different flow rates. Therefore, compared with the related art, the present invention can achieve the effect of graded adjustment of the water spray flow rate by adjusting its own spray holes, and the overall structure is simple and the cost is low.

[0009] In some embodiments, the regulator includes a first end and a rod body connected to each other, an end surface of the first end facing away from the rod body abuts against the elastic member, the first end separates the accommodating cavity into the first chamber and the second chamber, and the rod body is provided with a first baffle;

[0010] The adjustable spray hole group includes a first spray hole, which is opened on the circumference of the water spray section. When the regulator switches from the first position to the second position, the first baffle gradually avoids the first spray hole along the first direction.

[0011] In some embodiments, the adjustable spray hole group further includes a second spray hole, the second spray hole is opened on the circumference of the water spray section, the regulator further has an intermediate position between the first position and the second position, and the rod body is provided with a second baffle;

[0012] When the regulator switches from the first position to the middle position, the first baffle blocks the first spray hole, and the second baffle gradually avoids the second spray hole along the first direction. When the regulator is in the second position, the second spray hole is completely connected with the first chamber.

[0013] In some embodiments, there are a plurality of the first spray holes and a plurality of the second spray holes, the plurality of the first spray holes include two rows of first spray holes that are mirror-symmetrical relative to a reference plane, the reference plane is parallel to the first direction, the center of the water spray section is coplanar with the reference plane, each row of first spray holes includes at least two first spray holes arranged at intervals along the first direction, and the plurality of the second spray holes are arranged at intervals along the first direction;

[0014] There are a plurality of first baffles corresponding to the first spray holes one by one, and there are a plurality of second baffles corresponding to the second spray holes one by one.

[0015] In some embodiments, the regulator further includes a second end, and the second end and the first end are respectively arranged at two ends of the rod body along the first direction;

[0016] The adjustable spray hole group also includes a third spray hole, which is opened on the end face of the water spray section. The second end head abuts against the end face of the water spray section in the first position to block the third spray hole, and the second end head is spaced apart from the end face of the water spray section along the first direction when switching from the first position to the second position.

[0017] In some embodiments, a guide structure is provided between the first chamber and the second end head, the guide structure comprising a guide rail and a guide groove, one of the guide rail and the guide groove is provided on the first chamber, and the other is provided on the second end head.

[0018] In some embodiments, the water spray section is further provided with a fixed spray hole, the fixed spray hole is located on the circumference of the water spray section and is connected to the first chamber, and the second spray hole is located between the fixed spray hole and the first spray hole in the first direction.

[0019] In some embodiments, there are a plurality of fixed spray holes, and the plurality of fixed spray holes include two rows of fixed spray holes that are mirror-symmetrical with respect to the reference plane, and each row of fixed spray holes includes at least two fixed spray holes that are spaced apart and arranged along the first direction.

[0020] In some embodiments, the water spray pipe further includes an end cover, which is connected to the end of the mounting section away from the water spray section and seals the second chamber, and the elastic member is clamped between the end cover and the first end head.

[0021] A water spray cooling device according to an embodiment of the present invention includes a cooling pipe and a water spray assembly, wherein the cooling pipe has a cooling cavity; the water spray assembly is the water spray assembly described in any of the above embodiments, the water spray assembly is connected to the cooling pipe, at least part of the water spray section is located in the cooling cavity, and the fixed spray hole and the adjustable spray hole group are both connected to the cooling cavity.

[0022] According to the water spray cooling device of the embodiment of the present invention, the water spray component is designed as a structure with adjustable spray holes, that is, the cooling water flow rate sprayed into the cooling chamber by the adjustable spray hole group of the water spray component is changed to achieve the effect of graded regulation of the water spray flow rate and reduce the temperature of high-temperature combustion gas with different flow rates. Therefore, compared with the related art, the water spray cooling device using the water spray component can adjust the cooling water spray amount, has less supporting equipment and low maintenance cost.

[0023] In some embodiments, the water spray assembly is detachably connected to the cooling pipe.

[0024] In some embodiments, there are multiple water spray assemblies, and the multiple water spray assemblies are arranged at intervals along the circumference of the cooling pipe.

[0025] In some embodiments, the water spraying cooling device further includes a booster pump, which is communicated with the water inlet passage to adjust the pressure of the cooling water entering the water inlet passage by the booster pump.

[0026] In some embodiments, the water spraying cooling device further includes a monitoring component, which is connected to the water inlet passage, and the monitoring component is used to monitor at least one parameter information of the cooling water flow rate and the cooling water pressure in the water inlet passage.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of a water spraying component according to an embodiment of the present invention.

[0029] Figure 2 is Figure 1 a cross-sectional structural diagram taken at A-A in

[0030] Figure 3 is a cross-sectional structural diagram of a water spraying component according to an embodiment of the present invention (the arrow in the figure is the flowing direction of the cooling water).

[0031] Figure 4 is a cross-sectional structural diagram of a regulator in a water spraying component according to an embodiment of the present invention.

[0032] Figure 5 is Figure 4 a cross-sectional structural diagram taken at B-B in

[0033] Figure 6 is a schematic structural diagram of a water spraying cooling device according to an embodiment of the present invention.

[0034] Reference Signs:

[0035] 10. Water spraying cooling device;

[0036] 100. Water spraying component;

[0037] 200. Cooling pipe;

[0038] 1. Spray water pipe; 11. Accommodation cavity; 12. Installation section; 13. Water spraying section; 14. End cover;

[0039] 2. Pipe sleeve;

[0040] 3. Regulator; 31. First end; 32. Rod body; 321. First stop piece; 322. Second stop piece; 33. Second end;

[0041] 4. Elastic member;

[0042] 5. Water inlet channel; 51. Water inlet

[0043] 6. Adjustable nozzle group; 61. First nozzle; 62. Second nozzle; 63. Third nozzle

[0044] 7. Guide structure; 71. Guide rail; 72. Guide groove

[0045] 8. Fixed nozzle

[0046] 9. Cooling cavity Specific embodiments

[0047] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0048] As Figures 1 to 3 shown, a water spraying assembly 100 according to an embodiment of the present invention includes a water spraying pipe 1, a pipe sleeve 2, a regulator 3 and an elastic member 4. The water spraying pipe 1 has a receiving cavity 11 and includes a connected installation section 12 and a water spraying section 13. The pipe sleeve 2 is sleeved on the installation section 12. An inlet channel 5 is formed between the inner peripheral surface of the pipe sleeve 2 and the outer peripheral surface of the installation section 12. The installation section 12 is provided with a water inlet 51 communicating with the inlet channel 5. The water spraying section 13 is provided with an adjustable nozzle group 6. The regulator 3 is slidably engaged in the receiving cavity 11 along a first direction and divides the receiving cavity 11 into a first chamber and a second chamber. The water inlet 51 communicates with the first chamber. The regulator 3 has a first position and a second position. The regulator 3 blocks the adjustable nozzle group 6 at the first position. When the regulator 3 slides from the first position to the second position, the communication area between the adjustable nozzle group 6 and the first chamber gradually increases or increases step by step. The elastic member 4 is engaged in the second chamber and presses the regulator 3 towards the first position.

[0049] According to the water spraying assembly 100 of the embodiment of the present invention, the cooling water can be guided to the first chamber by the cooperation of the inlet channel 5 and the water inlet. Since the regulator 3 can slide in the receiving cavity 11 to switch between the first position and the second position, changing the communication area between the adjustable nozzle group 6 and the first chamber to adjust the external water spraying amount of the first chamber, realizing the multi-stage water spraying adjustment of the water spraying assembly 100, so as to match the cooling requirements of high-temperature gas with different flow rates. Therefore, compared with the related art, the present invention can achieve the function of grading and adjusting the water spraying flow by adjusting its own nozzle method, and the overall structure is simple and the cost is low.

[0050] Specifically, the water spray pipe 1, the accommodating chamber 11 and the pipe sleeve 2 can all extend along the first direction. The contour line of the cross section of each of the water spray pipe 1, the accommodating chamber 11 and the pipe sleeve 2 is not limited to a circle. The mounting section 12 and the water spray section 13 are arranged and connected along the first direction. The water inlet 51 can be opened on the circumferential surface of the mounting section 12, and the extension direction of the water inlet 51 can be 90° with the first direction, so that the cooling water entering the water inlet channel 5 is diverted 90° and enters the first chamber. The first chamber and the second chamber are arranged along the first direction. The elastic member 4 can be extended and retracted along the first direction, and the elastic member 4 is not limited to a spring, such as a columnar spring.

[0051] It can be understood that the connecting area between the adjustable spray hole group 6 and the first chamber is gradually increased or increased in steps, that is, the amount of water sprayed outward from the first chamber in the water spray pipe 1 is increased. Therefore, the connecting area between the adjustable spray hole group 6 and the first chamber can be adjusted by sliding the regulator 3 in the accommodating chamber 11 to change its specific position.

[0052] In addition, the first end of the elastic member 4 can be fixed to the mounting section 12, and the second end of the elastic member 4 can be fixed to the regulator 3; or, the first end of the elastic member 4 can be fixed to the mounting section 12, and the second end of the elastic member 4 can be pressed against the regulator 3; or, the first end of the elastic member 4 can be pressed against the mounting section 12, and the second end of the elastic member 4 can be fixed to the regulator 3; or, the first end of the elastic member 4 can be pressed against the mounting section 12, and the second end of the elastic member 4 can be pressed against the regulator 3.

[0053] like Figures 1 to 5 As shown, in some embodiments, the regulator 3 includes a first end 31 and a rod body 32 connected to each other, the end surface of the first end 31 facing away from the rod body 32 abuts against the elastic member 4, the first end 31 divides the accommodating cavity 11 into a first chamber and a second chamber, and the rod body 32 is provided with a first baffle 321.

[0054] The adjustable spray hole group 6 includes a first spray hole 61, which is provided on the circumference of the water spray section 13. When the regulator 3 is in the first position, the first baffle 321 completely blocks the first spray hole 61. When the regulator 3 switches from the first position to the second position, the first baffle 321 gradually avoids the first spray hole 61 along the first direction. In other words, the first baffle 321 gradually moves away from (or gradually opens) the first spray hole 61 along the first direction. When the regulator 3 is in the second position, the first spray hole 61 is completely connected with the first chamber.

[0055] It can be understood that after the cooling water is injected into the first chamber, when the pressure of the cooling water in the first chamber is greater than the sum of the elastic force of the elastic member 4 and the air pressure in the second chamber, the pressure of the cooling water in the first chamber will push the first end 31 and the rod body 32 to slide in the accommodating cavity 11 along the first direction. At this time, the first blocking piece 321 will act accordingly, and can gradually avoid or block the first spray hole 61 along the first direction, so as to change the communication area between the first spray hole 61 and the first chamber.

[0056] Specifically, the first end 31 and the rod body 32 are both slidably fitted in the accommodating cavity 11. The first end 31 and the rod body 32 are arranged and connected along the first direction. A sealing ring can be clamped between the outer peripheral surface of the first end 31 and the inner peripheral surface of the accommodating cavity 11 to ensure the sealing performance of the first chamber. For example, a sealing ring can be sleeved on the first end 31. The rod body 32 can extend along the first direction.

[0057] It should be noted that when the water spraying assembly 100 is arranged in the height direction, the pressure of the cooling water in the first chamber needs to be greater than the sum of the elastic force of the elastic member 4 + the air pressure in the second chamber + the gravity of the regulator 3, so as to be able to push the regulator 3 to slide along the first direction.

[0058] As Figures 1 to 5 shown, in some embodiments, the adjustable spray hole group 6 further includes a second spray hole 62. The second spray hole 62 is opened on the peripheral surface of the water spraying section 13. The regulator 3 further has an intermediate position between the first position and the second position. The rod body 32 is provided with a second blocking piece 322.

[0059] When the regulator 3 switches from the first position to the intermediate position, the first blocking piece 321 blocks the first spray hole 61, and the second blocking piece 322 gradually avoids the second spray hole 62 along the first direction. When the regulator 3 is in the second position, the second spray hole 62 is completely communicated with the first chamber.

[0060] It can be understood that the opening of the second spray hole 62 can further broaden the water spraying adjustment range to improve the applicability of the water spraying assembly 100. Similarly, when the pressure of the cooling water in the first chamber pushes the first end 31 and the rod body 32 to slide in the accommodating cavity 11 along the first direction, the first blocking piece 321 will act accordingly, and can gradually avoid or block the second spray hole 62 along the first direction. Among them, the second spray hole 62 is completely communicated with the first chamber before the first spray hole 61. Therefore, the water spraying assembly 100 has at least two gears, that is, the gear in which the second spray hole 62 is completely communicated with the first chamber, and the gear in which both the first spray hole 61 and the second spray hole 62 are completely communicated with the first chamber.

[0061] As Figures 1 to 3As shown, in some embodiments, there are multiple first spray holes 61 and multiple second spray holes 62. The multiple first spray holes 61 include two columns of first spray holes 61 that are mirror-symmetrical with respect to a reference plane. The reference plane is parallel to the first direction, and the center of the water spraying section 13 is coplanar with the reference plane, that is, the central axis of the water spraying section 13 is coplanar with the reference plane. Each column of first spray holes 61 includes at least two first spray holes 61 arranged at intervals along the first direction, and the multiple second spray holes 62 are arranged at intervals along the first direction.

[0062] There are multiple first baffles 321 and they correspond to the first spray holes 61 one by one. There are multiple second baffles 322 and they correspond to the second spray holes 62 one by one.

[0063] It can be understood that the arrangement of the multiple first spray holes 61 and the multiple second spray holes 62 can ensure the normal operation of the two types of spray holes (i.e., the first spray holes 61 and the second spray holes 62). That is, when one of them is blocked and cannot spray water externally, the other spray holes of the same type can still ensure the realization of external water spraying. At the same time, it improves the uniformity of the distribution of the cooling water flow rate during external water spraying to ensure the cooling effect on the high-temperature gas.

[0064] For example, in the figure, the first baffle 321 and the second baffle 322 can be integrated together to form a block with a semicircular arc cross-section and the thickness direction being the first direction. There are 5 such blocks and they are arranged at equal intervals along the first direction on the rod body 32.

[0065] Preferably, each column of first spray holes 61 includes at least two first spray holes 61 arranged at equal intervals along the first direction, and the multiple second spray holes 62 are arranged at equal intervals along the first direction, so as to make the cooling water flow rate evenly distributed along the first direction, ensure a good cooling effect on the high-temperature gas, and further simplify the structure of the water spraying assembly 100 and reduce the production difficulty.

[0066] As Figures 3 to 5 As shown, in some embodiments, the regulator 3 further includes a second end 33. The second end 33 and the first end 31 are respectively arranged at both ends of the rod body 32 along the first direction, that is, the first end 31, the rod body 32, and the second end 33 are arranged in sequence and connected along the first direction. For example, in the figure, the first end 31, the rod body 32, and the second end 33 are arranged in an "I" shape. At this time, the rod body 32 is located at the central position between the first end 31 and the second end 33.

[0067] The adjustable spray hole group 6 further includes a third spray hole 63. The third spray hole 63 is opened on the end face of the water spraying section 13. The second end 33 abuts against the end face of the water spraying section 13 at a first position to block the third spray hole 63. When the second end 33 switches from the first position to the second position, it is spaced apart from the end face of the water spraying section 13 along the first direction, so that the third spray hole 63 is completely communicated with the first chamber.

[0068] It can be understood that by opening the third spray hole 63 on the end face of the water spraying section 13, the water spraying adjustment range of the water spraying assembly 100 can be further increased. When the cooling water pressure in the first chamber pushes the first end 31 and the rod body 32 to slide in the accommodating chamber 11 in the first direction, the second end 33 acts accordingly, and the third spray hole 63 can be opened or closed in the first direction. Among them, the third spray hole 63 is completely communicated with the first chamber prior to the second spray hole 62. Therefore, the water spraying assembly 100 also has a gear position where the third spray hole 63 is completely communicated with the first chamber.

[0069] For example, in the figure, there is one third spray hole 63 and it is located at the center of the end face of the water spraying section 13.

[0070] As Figures 3 to 5 shown, in some embodiments, a guiding structure 7 is provided between the first chamber and the second end 33. The guiding structure 7 includes a guiding rail 71 and a guiding groove 72. One of the guiding rail 71 and the guiding groove 72 is provided in the first chamber, and the other is provided on the second end 33 to limit the circumferential rotation of the regulator 3 in the accommodating chamber 11, so that the regulator 3 can only slide in the first direction, ensuring the smooth realization of the multi-stage water spraying adjustment of the water spraying assembly 100.

[0071] Specifically, the guiding rail 71 can extend in the first direction. For example, in the figure, the inner circumferential surface of the first chamber can be provided with the guiding rail 71, and the outer circumferential surface of the second end 33 can be provided with the guiding groove 72, and the guiding groove 72 is in sliding fit with the guiding rail 71.

[0072] As Figures 1 to 3 shown, in some embodiments, the water spraying section 13 is further provided with a fixed spray hole 8. The fixed spray hole 8 is located on the circumferential surface of the water spraying section 13 and is communicated with the first chamber. The second spray hole 62 is located between the fixed spray hole 8 and the first spray hole 61 in the first direction.

[0073] It can be understood that the fixed spray hole 8 is communicated with the first chamber, so that the cooling water entering the first chamber can directly spray out from the fixed spray hole 8, forming the first-stage water spraying structure of the water spraying assembly 100.

[0074] That is to say, the water spraying gears of the water spraying assembly 100 in the present invention can be the first gear where the fixed spray hole 8 is completely communicated with the first chamber; the second gear where the fixed spray hole 8 and the third spray hole 63 are both completely communicated with the first chamber; the third gear where the fixed spray hole 8, the second spray hole 62 and the third spray hole 63 are all completely communicated with the first chamber; and the fourth gear where the fixed spray hole 8, the first spray hole 61, the second spray hole 62 and the third spray hole 63 are all completely communicated with the first chamber. Therefore, the specific water spraying gears of the water spraying assembly 100 of the present invention can be the foregoing four gears respectively.

[0075] As Figures 1 to 3As shown, in some embodiments, there are multiple fixed spray holes 8, and the multiple fixed spray holes 8 include two rows of fixed spray holes 8 that are mirror-symmetrical relative to the reference plane, and each row of fixed spray holes 8 includes at least two fixed spray holes 8 spaced apart along the first direction.

[0076] Specifically, the first spray hole 61, the second spray hole 62, the third spray hole 63 and the fixed spray hole 8 can all be direct spray holes, wherein the diameter of the spray hole can be designed according to the specific specifications of the water spray assembly 100, such as 1mm to 2mm. Taking the figure as an example, the fixed spray hole 8 can be arranged in the front half of the cooling water flow direction of the water spray section 13, and the number is 20; the first spray hole 61 can be arranged on the intersection line of the longitudinal section of the water spray section 13 and the circumference of the water spray section 13, and the number is 10; the second spray hole 62 can be arranged at the tail of the cooling water flow direction of the water spray section 13, and the number is 5; the third spray hole 63 can be arranged at the end face center of the water spray pipe 1, and the number is 1.

[0077] It should be noted that the diameters and quantities of all the spray holes (including the first spray hole 61, the second spray hole 62, the third spray hole 63 and the fixed spray hole 8) in the present invention are not limited to the above-mentioned values ​​and can be adjusted and designed according to actual conditions to match the water spray cooling requirements within the corresponding range. They will not be elaborated here.

[0078] Preferably, each column of fixed spray holes 8 includes at least two fixed spray holes 8 arranged at equal intervals along the first direction, so that the cooling water flow is evenly distributed along the first direction, ensuring a good cooling effect on the high-temperature combustion gas, and further simplifying the structure of the water spray assembly 100 to reduce production difficulty.

[0079] It can be understood that when there are multiple fixed spray holes 8, first spray holes 61 and second spray holes 62 and they are designed as the above-mentioned structure, in order to ensure the normal operation of the water spray assembly 100, the fixed spray holes 8, the first spray holes 61 and the second spray holes 62 are arranged on the peripheral surface of the water spray section 13 as follows: on the reference plane, the projection of any fixed spray holes 8 in each column of fixed spray holes 8, the projection of any first spray holes 61 in each column of first spray holes 61, and the projection of any second spray holes 62 are staggered in the first direction.

[0080] like Figure 3 As shown, in some embodiments, the water spray pipe 1 further includes an end cap 14, which is connected to the end of the mounting section 12 away from the water spray section 13 and covers the second chamber, that is, the water spray pipe 1 as a whole is a hollow structure tube body with one end open, and the open end of the tube body is covered by the end cap 14. The elastic member 4 is sandwiched between the end cap 14 and the first end 31.

[0081] Specifically, the end cap 14 is detachably connected to the end of the installation section 12 away from the water spray section 13, for example, by threads, to facilitate the disassembly and assembly of the regulator 3 and the elastic member 4 in the water spray pipe 1, and also facilitates the subsequent disassembly of the water spray assembly 100 as a whole to remove scale, thereby ensuring the service life of the water spray assembly 100 and saving costs.

[0082] like Figure 6 As shown, a water spray cooling device 10 of an embodiment of the present invention includes a cooling pipe 200 and a water spray assembly 100, the cooling pipe 200 has a cooling cavity 9; the water spray assembly 100 is the water spray assembly 100 of any of the above embodiments, the water spray assembly 100 is connected to the cooling pipe 200, at least part of the water spray section 13 is located in the cooling cavity 9, and the fixed spray hole 8 and the adjustable spray hole group 6 are both connected to the cooling cavity 9.

[0083] According to the water spray cooling device 10 of the embodiment of the present invention, the water spray component 100 is designed as a structure with adjustable spray holes, that is, the cooling water flow rate sprayed into the cooling chamber 9 by the adjustable spray hole group 6 of the water spray component 100 is changed to achieve the effect of graded regulation of the water spray flow rate and reduce the temperature of high-temperature combustion gas with different flow rates. Therefore, compared with the related art, the water spray cooling device 10 using the water spray component 100 can adjust the cooling water spray amount, has fewer supporting equipment and low maintenance costs.

[0084] It should be noted that the cooling pipe 200 is not limited to the cooling pipe 200 in the water spray cooling device 10 used in high temperature tests of gas turbines and aircraft engine combustion chambers, but may also be applicable to other occasions where cooling is required.

[0085] like Figure 6 As shown, in some embodiments, the water spray assembly 100 is detachably connected to the cooling pipe 200, so that when the spray hole of the water spray assembly 100 is blocked and cannot spray water after long-term use, the water spray assembly 100 can be removed from the water spray pipe 1 to remove scale, or when the water spray assembly 100 is damaged, the water spray assembly 100 can be replaced alone without affecting the use of the entire water spray cooling device 10, which is easy to clean, highly replaceable, and has low maintenance costs.

[0086] For example, a mounting seat flange can be formed on the tube wall of the cooling pipe 200. At this time, a flange plate can be fixedly connected to the pipe sleeve 2 of the water spray assembly 100. The water spray assembly 100 is inserted into the cooling cavity 9 through the mounting seat flange, and the flange plate on the pipe sleeve 2 is fastened to the mounting seat flange by bolts, so that the water spray assembly 100 can be installed on the cooling pipe 200.

[0087] like Figure 6As shown, in some embodiments, there are multiple water spraying assemblies 100. The multiple water spraying assemblies 100 are arranged at intervals along the circumferential direction of the cooling pipe 200. Preferably, the multiple water spraying assemblies 100 are arranged at equal intervals along the circumferential direction of the cooling pipe 200, so as to be able to spray water evenly into the cooling cavity 9 and ensure the cooling effect of the water spraying cooling device 10.

[0088] As Figure 6 shown, in some embodiments, the water spraying cooling device 10 further includes a booster pump (not shown in the figure). The booster pump is communicated with the water inlet channel 5 to adjust the pressure of the cooling water entering the water inlet channel 5 by the booster pump.

[0089] It can be understood that by cooperating the booster pump with the water spraying assembly 100, the water spraying cooling device 10 can meet the cooling requirements for high-temperature gas with different flow rates. Compared with the related art that uses a centrifugal nozzle for water spraying cooling, when the water spraying cooling device 10 needs to meet the cooling water volume requirements in a wide range, it will result in more supporting equipment, a more complex control system, and high costs. The water spraying cooling device 10 of the present invention has simple maintenance operations, low maintenance costs, few supporting equipment, strong interchangeability, and low usage costs.

[0090] In some embodiments, the water spraying cooling device 10 further includes a monitoring assembly (not shown in the figure). The monitoring assembly is connected to the water inlet channel 5 and is used to monitor at least one parameter information of the cooling water flow rate and the cooling water pressure in the water inlet channel 5. Preferably, the monitoring assembly is used to monitor the cooling water flow rate parameter information and the cooling water pressure parameter information in the water inlet channel 5.

[0091] Among them, the monitoring assembly may include at least one of a flow meter and a pressure gauge. That is to say, the monitoring assembly may be a flow meter; or the monitoring assembly may be a pressure gauge; or the monitoring assembly includes a flow meter and a pressure gauge.

[0092] It should be noted that a gas temperature monitoring point may also be set on the test exhaust pipeline to facilitate real-time monitoring of the gas discharge temperature and judge the water spraying cooling effect of the water spraying cooling device 10. Thus, it is beneficial for the operator to adjust the working gear of the water spraying assembly 100 in a timely manner to ensure good cooling of the high-temperature gas and make the gas discharge temperature reach the design requirements (such as being reduced to about 300 °C). Therefore, the cooperation of the monitoring assembly, the gas temperature monitoring point and the water spraying assembly 100 forms a closed-loop control system for water spraying cooling of high-temperature gas, with better functionality.

[0093] Now, in combination with the specific structure of the water spraying assembly 100, taking the water spraying assembly 100 having three gears and being arranged along the height direction as an example, its working process will be described as follows:

[0094] During the working process, the lower end face of the first end 31 of the regulator 3 is subjected to the upward water pressure positive pressure F1, and the upper end face is subjected to the resultant force F2 of the spring force, air pressure, and gravity downward. When the required water spray volume is small, the water pressure can be adjusted to a low water pressure by adjusting the booster pump, so that F1 is less than F2, and the water spray volume only sprays water through the fixed spray holes 8. This is the first gear water spray adjustment;

[0095] When the required water spray volume is medium, the water pressure can be adjusted to a medium water pressure by adjusting the booster pump. F1 is slightly greater than F2, and the regulator 3 moves upward. The water spray volume can spray water through the fixed spray holes 8, the second spray holes 62, and the third spray holes 63. This is the second gear water spray adjustment;

[0096] When the required water spray volume is high, the water pressure can be adjusted to a high water pressure by adjusting the booster pump. F1 is much greater than F2, and the regulator 3 continues to move upward. The water spray volume can spray water through the fixed spray holes 8, the first spray holes 61, the second spray holes 62, and the third spray holes 63. This is the third gear water spray adjustment.

[0097] The above three - gear adjustment can meet the control of small, medium, and large cooling water flow rates, so as to meet the cooling requirements of high - temperature gas in small, medium, and large states during the test process. Among them, when water spray cooling is required in a low - pressure and high - temperature environment, it can be controlled according to the third - gear water spray adjustment method; when water spray cooling is required in a high - pressure and low - temperature environment, it can also be controlled according to the third - gear water spray adjustment method. The excess water sprayed can flow out through the exhaust pipe without affecting the test adjustment.

[0098] In addition, during the adjustment process, only one booster pump is needed to control the displacement of the regulator 3, and at the same time, monitor the flow rate, pressure parameters, and temperature parameters of the cooling water.

[0099] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0100] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0101] In the present invention, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0102] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0103] In the present invention, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0104] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A water spray assembly, characterized in that: include: A water spray pipe and a pipe sleeve, wherein the water spray pipe has a containing cavity and includes a mounting section and a water spray section that are connected, the pipe sleeve is sleeved on the mounting section, a water inlet channel is formed between the inner circumference of the pipe sleeve and the outer circumference of the mounting section, the mounting section is provided with a water inlet connected to the water inlet channel, and the water spray section is provided with an adjustable spray hole group; a regulator, wherein the regulator is slidably engaged in the accommodating chamber along a first direction and divides the accommodating chamber into a first chamber and a second chamber, the water inlet is communicated with the first chamber, the regulator has a first position and a second position, the regulator blocks the adjustable spray hole group at the first position, and the communicating area between the adjustable spray hole group and the first chamber is gradually increased or increased in steps when the regulator slides from the first position to the second position; and An elastic member is fitted in the second chamber and presses the regulator toward the first position.

2. The water spray assembly according to claim 1, characterized in that: The regulator comprises a first end and a rod body connected to each other, the end surface of the first end facing away from the rod body abuts against the elastic member, the first end separates the accommodating cavity into the first chamber and the second chamber, and the rod body is provided with a first baffle; The adjustable spray hole group includes a first spray hole, which is opened on the circumference of the water spray section. When the regulator switches from the first position to the second position, the first baffle gradually avoids the first spray hole along the first direction.

3. The water spray assembly according to claim 2, characterized in that: The adjustable spray hole group further includes a second spray hole, the second spray hole is opened on the peripheral surface of the water spray section, the regulator also has an intermediate position between the first position and the second position, and the rod body is provided with a second baffle; When the regulator switches from the first position to the middle position, the first baffle blocks the first spray hole, and the second baffle gradually avoids the second spray hole along the first direction. When the regulator is in the second position, the second spray hole is completely connected with the first chamber.

4. The water spray assembly according to claim 3, characterized in that: There are a plurality of the first spray holes and the second spray holes, the plurality of the first spray holes include two rows of first spray holes that are mirror-symmetrical relative to a reference plane, the reference plane is parallel to the first direction, the center of the water spray section is coplanar with the reference plane, each row of the first spray holes includes at least two first spray holes arranged at intervals along the first direction, and the plurality of the second spray holes are arranged at intervals along the first direction; There are a plurality of first baffles corresponding to the first spray holes one by one, and there are a plurality of second baffles corresponding to the second spray holes one by one.

5. The water spray assembly according to claim 3, characterized in that: The regulator further includes a second end, wherein the second end and the first end are respectively arranged at two ends of the rod body along the first direction; The adjustable spray hole group also includes a third spray hole, which is opened on the end face of the water spray section. The second end head abuts against the end face of the water spray section in the first position to block the third spray hole, and the second end head is spaced apart from the end face of the water spray section along the first direction when switching from the first position to the second position.

6. The water spray assembly according to claim 5, characterized in that: A guide structure is provided between the first chamber and the second end. The guide structure comprises a guide rail and a guide groove. One of the guide rail and the guide groove is provided on the first chamber, and the other is provided on the second end.

7. The water spray assembly according to any one of claims 3 to 6, characterized in that: The water spray section is further provided with a fixed spray hole, which is located on the circumference of the water spray section and communicated with the first chamber, and the second spray hole is located between the fixed spray hole and the first spray hole in the first direction.

8. A water spray cooling device, characterized in that: include: A cooling tube, wherein the cooling tube has a cooling cavity; as well as A water spray assembly, wherein the water spray assembly is the water spray assembly according to any one of claims 1 to 7, wherein the water spray assembly is connected to the cooling pipe, wherein at least a portion of the water spray section is located in the cooling cavity, and the fixed spray hole and the adjustable spray hole group are both connected to the cooling cavity.

9. The water spray cooling device according to claim 8, characterized in that: The water spray assembly is detachably connected to the cooling pipe; And / or, there are multiple water spray assemblies, and the multiple water spray assemblies are arranged at intervals along the circumference of the cooling pipe.

10. The water spray cooling device according to claim 8 or 9, characterized in that: Also includes: a booster pump, the booster pump being in communication with the water inlet channel so as to adjust the pressure of cooling water entering the water inlet channel by the booster pump; and / or A monitoring component is connected to the water inlet channel, and is used to monitor at least one parameter information of cooling water flow and cooling water pressure in the water inlet channel.

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