Pipeline redundancy collecting device

Abstract

The utility model relates to the technical field of liquid rocket engine tests. The utility model discloses a pipeline redundancy collecting device which comprises a pipe connecting nozzle, a collecting structure and a silencing structure. The first end of the pipe connecting nozzle is connected with a to-be-checked pipeline, the first end of the collecting structure is connected with the second end of the pipe connecting nozzle, and the second end of the collecting structure is connected with the silencing structure; and air flow in the to-be-checked pipeline passes through the pipe connecting nozzle and the collecting structure and is exhausted through the silencing structure. Through the arrangement of the silencing structure, high-speed airflow flowing through the pipe connecting nozzle and the collecting structure is discharged in a noise reduction mode, and the safety of testers is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid rocket engine testing, in particular to a pipeline surplus material collecting device. Background Art

[0002] The rocket engine ground test system has extremely strict requirements for the cleanliness of the air supply pipeline and the control of excess materials. Before the engine is debugged with real media, the engine air supply pipeline must be inspected for excess materials before the pipeline can be docked. After the engine air supply pipeline is purged with a high-pressure gas source for a period of time, an excess material collection device is used to collect excess materials at the end of the pipeline air supply (i.e., the docking position with the engine air port). If there is no debris, dust, grease or other excess materials in the excess material collection device, it is qualified (according to QJ3062-1998 "Cleanliness and Excess Material Control Requirements for Liquid Rocket Engine Test Systems"). However, in a high-speed purge environment, the existing excess material collection device is prone to noise, affecting the safety of test personnel. Utility Model Content

[0003] In view of this, the utility model provides a pipeline excess material collecting device.

[0004] Specifically, the following technical solutions are included:

[0005] A pipeline excess material collecting device, comprising:

[0006] Take-over nozzle, collection structure and silencer structure;

[0007] The first end of the pipe connection nozzle is connected to the pipeline to be inspected, the first end of the collection structure is connected to the second end of the pipe connection nozzle, and the second end of the collection structure is connected to the muffler structure;

[0008] The airflow in the pipeline to be inspected passes through the connecting nozzle and the collecting structure and is discharged through the muffler structure.

[0009] Preferably, the connecting nozzle and the collecting structure are threadedly connected, and the collecting structure and the muffler structure are threadedly connected.

[0010] Preferably, the collecting structure comprises a compression head, a filter element and a compression nut;

[0011] The first end of the clamping head is threadedly connected to the pipe nozzle, the clamping nut is sleeved on the clamping head, the clamping nut is clamped with the clamping head, the second end of the clamping head is against the silencer structure, and the clamping nut is threadedly connected to the silencer structure;

[0012] The filter element is compressed between the second end of the compression head and the sound-absorbing structure.

[0013] Preferably, the compression head comprises a compression tube and a clamping seat;

[0014] The noise reduction structure includes a placement groove;

[0015] The first end of the compression tube is threadedly connected to the pipe nipple, the second end of the compression tube is inserted into the placement groove, and the filter element is compressed between the second end of the compression tube and the bottom of the placement groove;

[0016] The clamping seat is arranged on the outer wall of the compression tube, the clamping seat and the compression nut are clamped, and the compression nut and the outer wall of the muffler structure are screwed.

[0017] Preferably, the collection structure further comprises a porous plate;

[0018] The porous plate is arranged on a side of the filter element away from the pressing head, the porous plate is clamped with the muffler structure, and the porous plate and the filter element are pressed between the second end of the pressing head and the muffler structure.

[0019] Preferably, the collection structure further comprises a first clamping plate and a second clamping plate, and the first clamping plate and the second clamping plate are both annular plates;

[0020] The edge of the filter element is clamped between the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate are clamped;

[0021] The first clamping plate, the filter element and the second clamping plate are compressed between the second end of the compression head and the sound-absorbing structure.

[0022] Preferably, the diameter of the annular hole of the first clamping plate is equal to the diameter of the annular hole of the second clamping plate;

[0023] The diameter of the annular ring of the first clamping plate and the diameter of the annular ring of the second clamping plate are both smaller than the diameter of the filter element.

[0024] Preferably, the first clamping plate is provided with a protrusion, and the second clamping plate is provided with a groove;

[0025] The protrusion is arranged on the outer edge of the first clamping plate, the groove is arranged on the outer edge of the second clamping plate, the protrusion and the groove are arranged correspondingly, and the protrusion and the groove are plugged.

[0026] Preferably, the collection structure further comprises a collection basket, and the bottom of the collection basket is an annular plate;

[0027] The collecting basket is arranged at one end of the silencer structure, the bottom of the collecting basket abuts against the bottom of the mounting groove of the silencer structure, the first clamping plate, the filter element and the second clamping plate are arranged in the collecting basket, the second end of the pressing head is inserted into the collecting basket, and the first clamping plate, the filter element, the second clamping plate and the bottom of the collecting basket are pressed between the second end of the pressing head and the silencer structure.

[0028] Preferably, the collection basket is provided with a clamping column, and the muffler structure is provided with a clamping slot;

[0029] The clamping column is clamped with the clamping slot.

[0030] The beneficial effects of the technical solution provided by the utility model include at least:

[0031] The present application provides a silencer structure to reduce the noise emission of the high-speed airflow passing through the connecting nozzle and the collecting structure, thereby ensuring the safety of the test personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 This is a schematic diagram of the structure of a pipeline excess material collection device according to an embodiment of the utility model;

[0034] Figure 2 This is a schematic diagram of the explosion structure of a pipeline excess material collection device according to one embodiment of the utility model;

[0035] Figure 3 It is a schematic exploded cross-sectional view of the structure of a pipeline excess material collection device according to one embodiment of the utility model;

[0036] Figure 4 The present invention is a schematic cross-sectional view of the structure of a device for collecting excess matter in a pipeline according to an embodiment of the present invention.

[0037] The reference numerals in the figures represent respectively:

[0038] 1-pipe nozzle; 11-first chamber; 2-clamping head; 21-holder; 22-clamping tube; 23-second chamber; 3-clamping nut; 31-nut groove; 4-collecting basket; 41-basket bottom; 42-basket edge; 43-basket wall; 5-first clamping plate; 51-protrusion; 6-filter element; 7-second clamping plate; 71-groove; 8-porous plate; 81-notch; 9-silencing structure; 91-positioning block; 92-receiving groove; 93-air hole; 94-third chamber.

[0039] The above drawings have shown clear embodiments of the present invention, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Before further describing the embodiments of the present invention in detail, the directional nouns involved in the embodiments of the present invention, such as "upper part", "lower part", "side part", etc., are Figure 1 The orientation shown in is a reference and does not limit the protection scope of the present utility model.

[0042] In order to make the technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] like Figure 1 As shown, a pipe waste collection device comprises: a pipe connection nozzle 1, a collection structure and a silencer structure 9; the first end of the pipe connection nozzle 1 is connected to the pipe to be checked, the first end of the collection structure is connected to the second end of the pipe connection nozzle 1, and the second end of the collection structure is connected to the silencer structure 9; the airflow in the pipe to be checked passes through the pipe connection nozzle 1 and the collection structure, and is discharged through the silencer structure 9. The present application provides the silencer structure 9, so that the high-speed airflow passing through the pipe connection nozzle 1 and the collection structure is discharged with reduced noise, thereby ensuring the safety of the tester.

[0044] Specifically, the connecting nozzle 1 is connected to the pipeline to be inspected through a ball head. By changing the specifications of the ball head, the pipeline waste collection device of the present application can be connected to pipelines of various specifications to collect waste in the pipeline.

[0045] Specifically, the collecting structure is used to collect excess matter in the pipeline to be inspected, and the excess matter includes debris, dust, grease, etc.

[0046] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, the muffler structure 9 is a cylindrical structure, and the outer wall of the open end is provided with an external thread, which is screwed with the collecting structure through the external thread. A plurality of evenly arranged air holes 93 are provided on the wall surface of the muffler structure 9, and the high-speed airflow flowing through the nozzle 1 and the collecting structure is discharged to the outside through the air holes 93.

[0047] Specifically, Figure 3 As shown, the silencer structure 9 includes a third chamber 94, which is a gradually expanding structure capable of reducing the velocity of the airflow. Through the cooperation of the third chamber 94 and the air hole 93, the velocity of the airflow after passing through the collecting structure is reduced, the noise of the airflow discharge is reduced, and the safety of personnel is ensured.

[0048] Specifically, Figure 1 and Figure 3 As shown, both ends of the pipe nozzle 1 are provided with external threads, one end is connected with the pipeline to be inspected through the external threads, and the other end is connected with the collecting structure through the external threads. The present application adopts the threaded interface form, which is convenient for docking and installation.

[0049] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the collecting structure includes a clamping head 2, a filter element 6 and a clamping nut 3; the first end of the clamping head 2 is threadedly connected to the pipe nozzle 1, the clamping nut 3 is sleeved on the clamping head 2, the clamping nut 3 and the clamping head 2 are clamped, the second end of the clamping head 2 is abutted against the silencer structure 9, and the clamping nut 3 and the silencer structure 9 are threadedly connected; the filter element 6 is clamped between the second end of the clamping head 2 and the silencer structure 9.

[0050] Specifically, the filter element 6 is a porous structure, which can intercept the excess material carried in the air flow without hindering the air flow. Preferably, the filter element 6 is a white silk cloth.

[0051] Specifically, Figure 3 As shown, the pressing head 2 is a hollow structure, the first end of the pressing head 2 is the left end of the pressing head 2 , and the second end of the pressing head 2 is the right end of the pressing head 2 .

[0052] After the clamping nut 3 is clamped with the clamping head 2, when the clamping nut 3 is screwed with the silencer structure 9, the clamping nut 3 applies a force to the clamping head 2 in the direction of the silencer structure 9 until the screw connection between the clamping nut 3 and the silencer structure 9 is completed. The clamping head 2 and the silencer structure 9 are tightly abutted against each other, and the filter element 6 is clamped between the clamping head 2 and the silencer structure 9 to prevent the filter element 6 from being blown off.

[0053] Preferably, Figure 3 and Figure 4 As shown, the compression head 2 includes a compression tube 22 and a clamping seat 21; the muffler structure 9 includes a placement groove 92. The first end of the compression tube 22 is screwed to the nozzle 1, the second end of the compression tube 22 is inserted into the placement groove 92, and the filter element 6 is compressed between the second end of the compression tube 22 and the bottom of the placement groove 92; the clamping seat 21 is arranged on the outer wall of the compression tube 22, the clamping seat 21 is clamped to the compression nut 3, and the compression nut 3 is screwed to the outer wall of the muffler structure 9.

[0054] Specifically, Figure 3 As shown, the compression nut 3 includes a nut groove 31, and the clamping seat 21 is an annular plate arranged on the outer wall of the compression tube 22, and the bottoms of the clamping seat 21 and the nut groove 31 abut against each other. The bottom of the nut groove 31 is provided with an assembly hole, and the diameter of the assembly hole is slightly larger than the outer diameter of the compression tube 22 and smaller than the diameter of the clamping seat 21, so that the bottom of the groove and the clamping seat 21 abut against each other.

[0055] Specifically, Figure 3 As shown, the placement groove 92 is arranged at the left end of the muffler structure 9, and the right end of the compression tube 22 is inserted into the placement groove 92, so that the filter element 6 is compressed between the compression tube 22 and the bottom of the placement groove 92 to prevent the airflow from blowing off the filter element 6 when the airflow flows through the filter element 6. The inlet of the third chamber 94 is located at the bottom of the placement groove 92.

[0056] Specifically, Figure 2 , Figure 3 and Figure 4 As shown, the collection structure also includes a porous plate 8, which is provided with a plurality of through holes to facilitate the circulation of airflow, while reducing the pressure of the airflow flowing through the collection structure and reducing noise. The porous plate 8 is arranged on the side of the filter element 6 away from the compression head 2, and the porous plate 8 and the muffler structure 9 are clamped, and the porous plate 8 and the filter element 6 are compressed between the second end of the compression head 2 and the muffler structure 9.

[0057] Specifically, a positioning block 91 is provided on the bottom of the placement groove 92, and a notch 81 is provided on the edge of the porous plate 8. The positioning block 91 and the notch 81 are arranged in a one-to-one correspondence, and the positioning block 91 and the notch 81 are engaged to limit the displacement of the porous plate 8.

[0058] Specifically, the porous plate 8 is arranged downstream of the filter element 6. While facilitating the circulation of the airflow, it also plays a certain protective and supporting role for the filter element 6, preventing the filter element 6 from being blown away directly after falling off.

[0059] Preferably, Figure 2 , Figure 3 and Figure 4As shown, the collecting structure further includes a first clamping plate 5 and a second clamping plate 7. The first clamping plate 5 and the second clamping plate 7 are both annular plates. The middle parts of the first clamping plate 5 and the second clamping plate 7 are provided with an annular hole, and the diameter of the annular hole on the first clamping plate 5 is equal to the diameter of the annular hole on the second clamping plate 7. The diameter of the annular hole on the first clamping plate 5 is less than or equal to the inner diameter of the second port of the compression tube 22, and less than or equal to the inlet diameter of the third chamber 94.

[0060] The edge of the filter element 6 is clamped between the first clamping plate 5 and the second clamping plate 7, and the first clamping plate 5 and the second clamping plate 7 are clamped. The first clamping plate 5, the filter element 6 and the second clamping plate 7 are pressed between the second end of the pressing head 2 and the muffler structure 9.

[0061] Furthermore, in order to facilitate the clamping of the filter element 6 , the diameter of the annular ring of the first clamping plate 5 and the diameter of the annular ring of the second clamping plate 7 are both smaller than the diameter of the filter element 6 .

[0062] Further, if Figure 2 and Figure 3 The first clamping plate 5 is provided with a protrusion 51, and the second clamping plate 7 is provided with a groove 71. The protrusion 51 is arranged on the outer edge of the first clamping plate 5, and the groove 71 is arranged on the outer edge of the second clamping plate 7. The protrusion 51 and the groove 71 are arranged correspondingly, and the protrusion 51 and the groove 71 are plugged, as shown in FIG. Figure 4 The protrusion 51 is arranged at the edge of the first clamping plate 5, and the protrusion 51 is extended in the direction of the second clamping plate 7. After the protrusion 51 and the groove 71 are plugged, the filter element 6 is clamped between the first clamping plate 5 and the second clamping plate 7. The diameter of the filter element 6 is smaller than the outer diameter of the first clamping plate 5 to prevent the protrusion 51 from interfering with the filter element 6.

[0063] Preferably, Figures 2 to 4 As shown, the collecting structure further includes a collecting basket 4, and the basket bottom 41 of the collecting basket 4 is an annular plate. The collecting basket 4 is arranged at one end of the silencing structure 9, the basket bottom 41 of the collecting basket 4 and the bottom of the placement groove 92 of the silencing structure 9 are against each other, the first clamping plate 5, the filter element 6 and the second clamping plate 7 are arranged in the collecting basket 4, the second end of the pressing head 2 is inserted into the collecting basket 4, and the first clamping plate 5, the filter element 6, the second clamping plate 7 and the basket bottom 41 of the collecting basket 4 are pressed between the second end of the pressing head 2 and the silencing structure 9.

[0064] Specifically, the basket bottom 41 of the collection basket is used to carry the assembled first clamping plate 5, the filter element 6 and the second clamping plate 7. The basket bottom 41 of the collection basket is placed in the placement groove 92. The basket peripheral wall 43 of the collection basket 4 and the inner wall of the placement groove 92 are engaged or abutted. The basket edge 42 of the collection basket 4 extends in a direction away from the axis of the collection basket 4, and the outer diameter of the basket edge 42 is less than or equal to the outer diameter of the left end of the muffler structure 9 or the diameter of the nut groove 31. The arrangement of the basket edge 42 facilitates the installation and removal of the collection basket 4.

[0065] Specifically, a clamping column is provided on the collection basket 4, and a clamping slot is provided on the muffler structure 9, and the clamping column and the clamping slot are clamped together.

[0066] Specifically, the clamping column is arranged on the outer wall of the basket peripheral wall 43 , and the clamping groove is arranged on the inner wall of the accommodating groove 92 . The clamping column and the clamping groove are clamped to limit the displacement of the collecting basket 4 .

[0067] The setting of the collection basket 4 can avoid the situation where the excess material collection result is contaminated by manual direct removal of the white silk cloth, and further ensure the integrity and accuracy of the pipeline excess material inspection result.

[0068] Specifically, the pipeline excess material collection device is assembled in the following order:

[0069] ①: The porous plate 8 is placed in the placement groove 92 of the muffler structure, and the notch 81 and the positioning block 91 are aligned and assembled;

[0070] ②: Place the circular filter element 6 between the first clamping plate 5 and the second clamping plate 7, and fix the filter element 6 between the first clamping plate 5 and the second clamping plate 7 by means of the protrusion 51 and the groove 71;

[0071] ③: Place the assembled first clamping plate 5, filter element 6 and second clamping plate 7 into the collection basket 4;

[0072] ④: Place the collecting basket 4 into the placement groove 92, the basket bottom 41 of the collecting basket 4 abuts against the porous plate 8, and the collecting basket 4 and the placement groove 92 are connected by the clamping column and the clamping groove;

[0073] ⑤: The clamping nut 3 is sleeved on the clamping head 2, the second end of the clamping head 2 is inserted into the collecting basket 4 and abuts against the first clamping plate 5, and the clamping nut 3 and the silencer structure 9 are connected by threads;

[0074] ⑥: Thread the second end of the pipe nozzle 1 to the compression head 2, and thread the first end of the pipe nozzle 1 to the pipe to be inspected;

[0075] The assembly is now complete. The disassembly sequence of the pipeline waste collection device is opposite to the assembly sequence, which will not be repeated here.

[0076] like Figure 4 As shown, the nozzle 1 includes a first chamber 11, the compression pipe 22 includes a second chamber 23, and the muffler structure 9 includes a third chamber 94. The first chamber 11, the second chamber 23 and the third chamber 94 are connected. The first chamber 11 is a gradually contracting structure, and the second chamber 23 is a gradually expanding structure. The first chamber 11 and the second chamber 23 form a throat structure, which is conducive to further improving the air flow speed from the pipeline to be inspected and enhancing the ability of the air flow to flow through the filter element 6. The third chamber 94 is a gradually expanding structure. The cooperation of the porous plate 8 and the third chamber 94 can reduce the speed of the air flow after flowing through the filter element 6 and reduce the noise of the exhaust air flow.

[0077] The pipe connection nozzle 1 in this application is a standard aerospace joint, adapted to the beacon interface, and convenient for pipe connection. After the collection is completed, the white silk cloth can be taken out for inspection, which is convenient for observing the excess. During the excess collection process, the high-speed airflow can be decelerated and discharged with reduced noise, ensuring the safety of use and personnel during the collection process. It can be used for the collection and inspection of excess in rocket engine ground air supply systems or systems with high requirements for pipeline cleanliness and excess control.

[0078] In the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0079] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the present invention disclosed herein. The present invention is intended to cover any variation, use, or adaptation of the present invention that follows the general principles of the present invention and includes common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only.

[0080] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline excess material collection device, characterized in that: include: Take-over nozzle, collection structure and silencer structure; The first end of the pipe connection nozzle is connected to the pipeline to be inspected, the first end of the collection structure is connected to the second end of the pipe connection nozzle, and the second end of the collection structure is connected to the muffler structure; The airflow in the pipeline to be inspected passes through the connecting nozzle and the collecting structure and is discharged through the muffler structure.

2. A pipeline waste collection device according to claim 1, characterized in that: The connecting nozzle and the collecting structure are threadedly connected, and the collecting structure and the muffler structure are threadedly connected.

3. A pipeline waste collection device according to claim 1, characterized in that: The collecting structure comprises a compression head, a filter element and a compression nut; The first end of the clamping head is threadedly connected to the pipe nozzle, the clamping nut is sleeved on the clamping head, the clamping nut is clamped with the clamping head, the second end of the clamping head is against the silencer structure, and the clamping nut is threadedly connected to the silencer structure; The filter element is compressed between the second end of the compression head and the sound-absorbing structure.

4. A pipeline waste collection device according to claim 3, characterized in that: The compression head comprises a compression tube and a clamping seat; The noise reduction structure includes a placement groove; The first end of the compression tube is threadedly connected to the pipe nipple, the second end of the compression tube is inserted into the placement groove, and the filter element is compressed between the second end of the compression tube and the bottom of the placement groove; The clamping seat is arranged on the outer wall of the compression tube, the clamping seat and the compression nut are clamped, and the compression nut and the outer wall of the muffler structure are threaded.

5. A pipeline waste collection device according to claim 3, characterized in that: The collection structure also includes a porous plate; The porous plate is arranged on a side of the filter element away from the pressing head, the porous plate is clamped with the muffler structure, and the porous plate and the filter element are pressed between the second end of the pressing head and the muffler structure.

6. A pipeline waste collection device according to claim 3, characterized in that: The collecting structure further comprises a first clamping plate and a second clamping plate, wherein the first clamping plate and the second clamping plate are both annular plates; The edge of the filter element is clamped between the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate are clamped; The first clamping plate, the filter element and the second clamping plate are compressed between the second end of the compression head and the sound-absorbing structure.

7. A pipeline waste collection device according to claim 6, characterized in that: The diameter of the annular hole of the first clamping plate is equal to the diameter of the annular hole of the second clamping plate; The diameter of the annular ring of the first clamping plate and the diameter of the annular ring of the second clamping plate are both smaller than the diameter of the filter element.

8. A pipeline waste collection device according to claim 6, characterized in that: The first clamping plate is provided with a protrusion, and the second clamping plate is provided with a groove; The protrusion is arranged on the outer edge of the first clamping plate, the groove is arranged on the outer edge of the second clamping plate, the protrusion and the groove are arranged correspondingly, and the protrusion and the groove are plugged.

9. A pipeline waste collection device according to claim 6, characterized in that: The collection structure further comprises a collection basket, the bottom of which is an annular plate; The collecting basket is arranged at one end of the silencer structure, the bottom of the collecting basket abuts against the bottom of the mounting groove of the silencer structure, the first clamping plate, the filter element and the second clamping plate are arranged in the collecting basket, the second end of the pressing head is inserted into the collecting basket, and the first clamping plate, the filter element, the second clamping plate and the bottom of the collecting basket are pressed between the second end of the pressing head and the silencer structure.

10. A pipeline waste collection device according to claim 9, characterized in that: The collecting basket is provided with a clamping column, and the muffler structure is provided with a clamping slot; The clamping column is clamped with the clamping slot.

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