阅读说明：本技术 测试密封装置及测试部件的安装方法 (Test seal device and method of mounting test member ) 是由 华继伟 肖华中 王立 郭林林 于 2020-05-12 设计创作，主要内容包括：本发明公开了一种测试密封装置及测试部件的安装方法,机匣的测试位置处设有用于穿设测试部件的测试孔,测试密封装置用于将测试部件与机匣密封连接,测试密封装置包括用于安装于机匣的密封座,密封座上设有与机匣的测试孔连通的孔道,密封座的出口端与测试孔密封连接,测试密封装置还包括塞于孔道中的弹性密封机构以及套于弹性密封机构上并沿孔道的轴向与密封座的入口端外壁面螺纹匹配连接的外套螺母,弹性密封机构上设有沿轴向贯穿至孔道的穿孔,以使测试部件的测试端依次穿过弹性密封机构和密封座并伸入机匣内；通过外套螺母在密封座上螺纹行进时的推力将弹性密封机构向孔道内挤压变形,从而使密封座、弹性密封机构以及测试部件三者密封连接。(The invention discloses a test sealing device and a mounting method of the test component, wherein a test hole for penetrating the test component is arranged at a test position of a casing, the test sealing device is used for connecting the test component with the casing in a sealing manner, the test sealing device comprises a sealing seat for mounting the casing, the sealing seat is provided with a pore passage communicated with the test hole of the casing, the outlet end of the sealing seat is connected with the test hole in a sealing manner, the test sealing device also comprises an elastic sealing mechanism plugged in the pore passage and a sleeve nut sleeved on the elastic sealing mechanism and in threaded matching connection with the outer wall surface of the inlet end of the sealing seat along the axial direction of the pore passage, and the elastic sealing mechanism is provided with a through hole penetrating to the pore passage along the axial direction so that the test end of the test component sequentially penetrates through the elastic sealing mechanism and the sealing seat and extends into the casing; the elastic sealing mechanism is extruded and deformed into the pore channel by the thrust of the outer nut in the process of thread advancing on the sealing seat, so that the sealing seat, the elastic sealing mechanism and the test component are in sealing connection.)

1. A test sealing device is used for sealing a test position of an aeroengine casing, a test hole for penetrating a test part (200) is arranged at the test position of the casing (100), the test sealing device is used for connecting the test part (200) with the casing (100) in a sealing way, and is characterized in that,

the test sealing device comprises a sealing seat (1) which is used for being arranged on the casing (100), a pore passage which is communicated with a test hole of the casing (100) is arranged on the sealing seat (1), the outlet end of the sealing seat (1) is connected with the test hole in a sealing way,

the test sealing device also comprises an elastic sealing mechanism plugged in the pore channel and an outer sleeve nut (4) which is sleeved on the elastic sealing mechanism and is in threaded matching connection with the outer wall surface of the inlet end of the sealing seat (1) along the axial direction of the pore channel,

the elastic sealing mechanism is provided with a through hole which penetrates through the pore channel along the axial direction, so that the testing end of the testing component (200) sequentially penetrates through the elastic sealing mechanism and the sealing seat (1) and extends into the casing (100);

the elastic sealing mechanism is extruded and deformed into the pore channel by the thrust of the outer nut (4) during the thread advancing on the sealing seat (1), so that the sealing seat (1), the elastic sealing mechanism and the test component (200) are connected in a sealing manner.

2. The test seal of claim 1,

the elastic sealing mechanism comprises a lower half bowl (2) with an outlet end plugged in the pore passage and an upper half bowl (3) with an outlet end covered on the inlet end of the lower half bowl (2), a sealing cavity is arranged between the lower half bowl (2) and the upper half bowl (3),

the elastic sealing mechanism further comprises an elastic sealing unit arranged in the sealing cavity, and through holes communicated with each other are formed in the lower half bowl (2), the elastic sealing unit and the upper half bowl (3) along the axial direction of the pore channel, so that a through hole is formed.

3. The test seal of claim 2,

the inner cavity of the inlet end of the lower bowl (2) is provided with a lower inner conical cavity with the radial size gradually decreasing from outside to inside, and the inner cavity of the outlet end of the upper bowl (3) is provided with an upper inner conical cavity with the radial size gradually decreasing from outside to inside, so that a sealing cavity for installing an elastic sealing unit is formed between the upper bowl (3) and the lower bowl (2).

4. The test seal of claim 2,

the end face of the inlet end of the pore channel is an inner conical surface with the radial size gradually reduced from outside to inside, and the outlet end of the lower bowl (2) is provided with a lower limiting part which is plugged into the pore channel to limit the lower bowl (2) in the radial direction and an outer conical part matched with the inner conical surface.

5. The test seal of claim 2,

the inlet end of the outer sleeve nut (4) extends inwards to form a compression ring used for compressing the upper half bowl (3) to the sealing seat (1), and the inlet end of the upper half bowl (3) is provided with an upper limiting part used for extending into a central hole of the compression ring to radially limit the upper half bowl (3).

6. The test seal of claim 2,

an annular convex strip is arranged at the outlet end of the upper half bowl (3) along the circumferential direction, and a groove matched with the annular convex strip is arranged at the inlet end of the lower half bowl (2) along the circumferential direction; or

The inlet end of the lower half bowl (2) is provided with an annular convex strip along the circumferential direction, and the outlet end of the upper half bowl (3) is provided with a groove matched with the annular convex strip along the circumferential direction.

7. The test seal of claim 2,

the elastic sealing unit is a sealing ball (5) made of rubber, and the inlet end and the outlet end of the sealing ball (5) are respectively abutted against the wall surface of the inner cavity of the upper half bowl (3) and the wall surface of the inner cavity of the lower half bowl (2).

8. The test seal of claim 2,

the elastic sealing unit is a sealing groove ball (6) made of soft metal, an inlet sealing part (62) which is in fit sealing with the upper half bowl (3) surface, an outlet sealing part (61) which is in fit sealing with the lower half bowl (2) surface and a deformation part (63) which is connected with the inlet sealing part (62) and the outlet sealing part (61) are arranged along the axial direction of the sealing groove ball (6), a plurality of through grooves are uniformly distributed along the circumferential direction of the sealing groove ball (6), and the axial deformation capacity of the sealing groove ball (6) is improved.

9. The test seal of claim 8,

the deformation part (63) and the inlet sealing part (62) and the deformation part (63) and the outlet sealing part (61) are in arc connection transition, and the deformation part (63) is inwards concave, so that the deformation part (63) is corrugated, and the axial deformation capacity of the sealing groove ball (6) is improved.

10. A method of mounting a test component, using a test seal according to any one of claims 1 to 9, comprising the steps of:

fixing the sealing seat (1) at a testing hole of the casing (100);

sequentially enabling a testing end of the testing component (200) to penetrate through the outer sleeve nut (4), the elastic sealing mechanism and the sealing seat (1) and extend into the casing (100);

the outlet end of the elastic sealing mechanism is plugged into a pore channel of the sealing seat (1), and the outer nut (4) is sleeved on the elastic sealing mechanism and is in threaded connection with the outer wall surface of the sealing seat (1);

the outer nut (4) is rotated towards the sealing seat (1), and the elastic sealing mechanism is extruded and deformed towards the pore channel by the extrusion force when the outer nut (4) advances on the sealing seat (1) through the thread, so that the sealing seat (1), the elastic sealing mechanism and the test component (200) are connected in a sealing manner.

Technical Field

The invention relates to the technical field of aircraft engine test devices, in particular to a sealing test device and an installation method of a test part.

Background

During the aeroengine is experimental, need detect various parameters such as pressure, temperature and the air current velocity of flow in the machine casket, if adopt the pressure measurement tubular metal resonator to install the pressure that detects the interior air inlet duct of machine casket in test position department test hole, adopt the armor lead wire to install the temperature that detects the interior air inlet duct of machine casket in test position department test hole department in the machine casket test position, the sealed mounting means of the test part who uses in the aeroengine at present divide into two kinds: the first one is used for the cold end with lower temperature in the casing, and the test hole is directly coated with sealant for sealing; the second type is used for a hot end with higher temperature in the casing, and an armored lead or a pressure measuring metal tube is fixed at a test hole by adopting a welding mode. The first has the following disadvantages: the application range is narrow: it is only suitable for mechanisms with lower internal pressure; poor sealing performance: leakage is easy to occur; poor anti-vibration capability: the device can not work in a vibration environment for a long time and is easy to loosen; polluting the internal medium: the sealant easily pollutes the fuel oil/lubricating oil and other media inside the mechanism; the disassembly is difficult: the sealant is not easy to remove. The second type has the following disadvantages: the lead needs to be welded in advance in the free state of the test mechanism casing, so that the assembly difficulty is improved; the welding process easily causes deformation of the test part and the casing, and causes change of a flow field; the cost is improved: the welding lead of the casing cannot be reused, so that the cost is increased; the labor intensity is increased: the disassembly of the armored lead/metal tube is difficult to test; through welding high temperature, the properties of the armored lead and the pressure measuring metal pipe material are possibly changed, and phenomena such as fracture and the like are easy to occur.

Disclosure of Invention

The invention provides a test sealing device and a test component mounting method, which are used for solving the technical problems of narrow application range, poor sealing performance and unstable structure of the existing test component sealing mounting mode.

According to one aspect of the invention, a test sealing device is provided, which is used for sealing a test position of an aeroengine casing, the test position of the casing is provided with a test hole for penetrating a test component, the test sealing device is used for connecting the test component with the casing in a sealing manner, the test sealing device comprises a sealing seat which is installed on the casing, the sealing seat is provided with a pore passage communicated with the test hole of the casing, the outlet end of the sealing seat is connected with the test hole in a sealing manner, the test sealing device further comprises an elastic sealing mechanism which is plugged in the pore passage and a sleeve nut which is sleeved on the elastic sealing mechanism and is in threaded matching connection with the outer wall surface of the inlet end of the sealing seat along the axial direction of the pore passage, and the elastic sealing mechanism is provided with a through hole which penetrates through the pore passage along the axial direction, so that the test end of the test component sequentially penetrates through the elastic sealing mechanism and the sealing; the elastic sealing mechanism is extruded and deformed into the pore channel by the thrust of the outer nut in the process of thread advancing on the sealing seat, so that the sealing seat, the elastic sealing mechanism and the test component are in sealing connection.

Furthermore, the elastic sealing mechanism comprises a lower bowl with an outlet end plugged in the pore channel and an upper bowl with an outlet end covered on the inlet end of the lower bowl, a sealing cavity is arranged between the lower bowl and the upper bowl, the elastic sealing mechanism also comprises an elastic sealing unit arranged in the sealing cavity, and the lower bowl, the elastic sealing unit and the upper bowl are all provided with through holes communicated with each other along the axial direction of the pore channel, so that a through hole is formed.

Furthermore, a lower inner conical cavity with the radial size gradually decreasing from outside to inside is arranged in the inner cavity of the inlet end of the lower bowl, and an upper inner conical cavity with the radial size gradually decreasing from outside to inside is arranged in the inner cavity of the outlet end of the upper bowl, so that a sealing cavity for installing the elastic sealing unit is formed between the upper bowl and the lower bowl.

Furthermore, the end face of the inlet end of the pore channel is an inner conical surface with the radial size gradually reduced from outside to inside, and the outlet end of the lower half bowl is provided with a lower limiting part which is used for being plugged into the pore channel to limit the lower half bowl in the radial direction and an outer conical part matched with the inner conical surface.

Further, the entry end of overcoat nut inwards extends and forms the clamping ring that is used for compressing tightly upper half bowl to the seal receptacle, and the entry end of upper half bowl is equipped with and is used for stretching into in the centre bore of clamping ring in order to carry out radial spacing upper limit portion to upper half bowl.

Furthermore, an annular convex strip is arranged at the outlet end of the upper half bowl along the circumferential direction, and a groove matched with the annular convex strip is arranged at the inlet end of the lower half bowl along the circumferential direction; or the inlet end of the lower bowl is provided with an annular convex strip along the circumferential direction, and the outlet end of the upper bowl is provided with a groove matched with the annular convex strip along the circumferential direction.

Furthermore, the elastic sealing unit is a sealing ball made of rubber, and the inlet end and the outlet end of the sealing ball are respectively abutted against the upper half bowl inner cavity wall surface and the lower half bowl inner cavity wall surface.

Furthermore, the elastic sealing unit is a sealing groove ball made of soft metal, the sealing groove ball is provided with an inlet sealing part which is sealed by being attached to the upper half bowl surface, an outlet sealing part which is sealed by being attached to the lower half bowl surface and a deformation part which is connected with the inlet sealing part and the outlet sealing part along the axial direction, the deformation part is provided with a through groove along the axial direction, and a plurality of through grooves are uniformly distributed along the circumferential direction of the sealing groove ball so as to improve the axial deformation capacity of the sealing groove ball.

Furthermore, the deformation part and the inlet sealing part and the deformation part and the outlet sealing part are in arc connection transition, and the deformation part is arranged inwards in a concave mode, so that the deformation part is corrugated, and the axial deformation capacity of the sealing groove ball is improved.

According to another aspect of the present invention, there is also provided a method for mounting a test component, using the above test seal device, including the steps of: fixing the sealing seat at the testing hole of the casing; sequentially penetrating a testing end of the testing component through the outer sleeve nut, the elastic sealing mechanism and the sealing seat and extending into the casing; the outlet end of the elastic sealing mechanism is plugged in a pore channel of the sealing seat, and the outer nut is sleeved on the elastic sealing mechanism and is in threaded connection with the outer wall surface of the sealing seat; the outer nut is rotated towards the sealing seat, and the elastic sealing mechanism is extruded and deformed towards the pore channel by the extrusion force of the outer nut when the outer nut advances on the sealing seat, so that the sealing seat, the elastic sealing mechanism and the test component are in sealing connection.

The invention has the following beneficial effects:

the invention relates to a test sealing device, which is characterized in that the outlet end of a sealing seat is arranged on a casing and is in sealing connection with a test hole, the outlet end of an elastic sealing mechanism is plugged in a pore channel, an outer sleeve nut is sleeved on the elastic sealing structure, and an outer sleeve thread is in matching connection with the inlet end thread of the sealing seat, when a test component is installed, the test end of the test component sequentially penetrates through the elastic sealing mechanism and the sealing seat to extend into the casing, then the elastic sealing mechanism is extruded and deformed into the pore channel by thrust force generated when the outer sleeve nut advances on the sealing seat, so that the sealing seat, the elastic sealing mechanism and the test component are in sealing connection, a cold end with lower temperature and a hot end with higher temperature in the casing are both suitable for use, the whole device has stable structure, is simple to install, has low assembly difficulty, cannot cause the deformation of the casing and the test component, and ensures the stable, the test result is ensured to be accurate.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a test seal according to a preferred embodiment of the present invention;

FIG. 2 is a schematic structural view of a test seal according to a preferred embodiment of the present invention;

FIG. 3 is a schematic structural view of a sealed groove ball of a preferred embodiment of the present invention;

fig. 4 is a schematic structural view of a test seal according to a preferred embodiment of the present invention.

Illustration of the drawings:

1. a sealing seat; 2. a lower half bowl; 3. an upper half bowl; 4. a nut is sleeved; 5. a sealing ball; 6. sealing the groove ball; 61. an outlet seal portion; 62. an inlet seal portion; 63. a deformation section; 7. a plug; 100. a case; 200. the part is tested.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.

FIG. 1 is a schematic structural view of a test seal according to a preferred embodiment of the present invention; FIG. 2 is a schematic structural view of a test seal according to a preferred embodiment of the present invention; FIG. 3 is a schematic structural view of a sealed groove ball of a preferred embodiment of the present invention; fig. 4 is a schematic structural view of a test seal according to a preferred embodiment of the present invention.

As shown in fig. 1 and fig. 2, the testing sealing device of the present embodiment is used for sealing a testing position of an aircraft engine casing 100, the testing position of the casing 100 is provided with a testing hole for penetrating a testing component 200, the testing sealing device is used for sealing and connecting the testing component 200 with the casing 100, the testing sealing device includes a sealing seat 1 for being installed on the casing 100, the sealing seat 1 is provided with a hole channel communicated with the testing hole of the casing 100, an outlet end of the sealing seat 1 is connected with the testing hole in a sealing manner, the testing sealing device further includes an elastic sealing mechanism plugged in the hole channel and a cap nut 4 sleeved on the elastic sealing mechanism and in threaded fit connection with an outer wall surface of the inlet end of the sealing seat 1 along an axial direction of the hole channel, the elastic sealing mechanism is provided with a through hole extending to the hole channel along the axial direction, so that the testing end of the testing component 200 sequentially passes through the elastic sealing mechanism and the sealing seat 1 and extends into the casing 100; the elastic sealing mechanism is extruded and deformed into the pore channel by the thrust of the outer nut 4 during the thread advancing on the sealing seat 1, so that the sealing seat 1, the elastic sealing mechanism and the test component 200 are connected in a sealing manner. The end of the test member 200 that penetrates is an entrance end, and the end of the test member 200 that penetrates is an exit end. The testing sealing device of the invention is characterized in that the outlet end of a sealing seat 1 is arranged on a casing 100 and is connected with a testing hole in a sealing way, the outlet end of an elastic sealing mechanism is plugged in a pore channel, an outer sleeve nut 4 is sleeved on the elastic sealing structure and outer sleeve threads are matched and connected with the inlet end threads of the sealing seat 1, when a testing component 200 is installed, the testing end of the testing component 200 sequentially penetrates through the elastic sealing mechanism and the sealing seat 1 to extend into the casing 100, then the elastic sealing mechanism is extruded and deformed into the pore channel by thrust when the outer sleeve nut 4 advances on the sealing seat 1, so that the sealing seat 1, the elastic sealing mechanism and the testing component 200 are connected in a sealing way, a cold end with lower temperature and a hot end with higher temperature in the casing 100 are suitable for both, the whole device has stable structure, is simple to install and low assembling difficulty, and cannot cause the casing 100 and the testing component 200 to deform, the stability of the flow field in the casing 100 is ensured, and the accuracy of the test result is ensured. As shown in fig. 4, when the test component 200 is not required to be installed, the elastic sealing mechanism is replaced by a sealing plug 7 matched with the pore channel, one end of the sealing plug 7 is plugged into the pore channel, and the plug 7 is pressed into the pore channel by thrust generated when the outer nut 4 advances on the sealing seat 1 through threads, so that the pore channel of the sealing seat 1 is plugged.

As shown in fig. 1 and 2, the elastic sealing mechanism includes a lower bowl 2 having an outlet end plugged in the hole, and an upper bowl 3 having an outlet end covering the inlet end of the lower bowl 2, and a sealing cavity is provided between the lower bowl 2 and the upper bowl 3, the elastic sealing mechanism further includes an elastic sealing unit installed in the sealing cavity, and the lower bowl 2, the elastic sealing unit and the upper bowl 3 are all provided with through holes communicated with each other along the axial direction of the hole, thereby forming a through hole. The inner cavity of the inlet end of the lower bowl 2 is provided with a lower inner conical cavity with the radial size gradually decreasing from outside to inside, and the inner cavity of the outlet end of the upper bowl 3 is provided with an upper inner conical cavity with the radial size gradually decreasing from outside to inside, so that a sealing cavity for installing an elastic sealing unit is formed between the upper bowl 3 and the lower bowl 2.

As shown in fig. 1 and fig. 2, the end surface of the inlet end of the duct is an inner conical surface with a radial dimension gradually decreasing from outside to inside, and the outlet end of the lower bowl 2 is provided with a lower limiting portion for being plugged into the duct to radially limit the lower bowl 2 and an outer conical portion matched with the inner conical surface. The outer cone part of the lower bowl 2 is matched with the inner cone surface of the inlet end of the pore passage to form a cone surface sealing structure, so that the sealing performance is more stable. The lower half bowl 2 is limited radially through the lower limiting part, so that the lower half bowl 2 is prevented from deviating radially to influence the sealing performance of the sealing device to be tested when the elastic sealing mechanism is pressed to the sealing seat 1 through the external thread sleeve.

As shown in fig. 1 and 2, an inlet end of the outer nut 4 extends inward to form a compression ring for compressing the upper half bowl 3 to the seal seat 1, and an inlet end of the upper half bowl 3 is provided with an upper limit portion for extending into a central hole of the compression ring to limit the upper half bowl 3 in the radial direction. The upper half bowl 3 is radially limited by the upper limiting part, so that the influence of the radial deviation of the upper half bowl 3 on the sealing performance of the sealing device testing can be prevented when the elastic sealing mechanism is pressed to the sealing seat 1 by the external thread sleeve.

As shown in fig. 1 and 2, an annular convex strip is arranged at the outlet end of the upper half bowl 3 along the circumferential direction, and an annular groove matched with the annular convex strip is arranged at the inlet end of the lower half bowl 2 along the circumferential direction; or the inlet end of the lower bowl 2 is provided with an annular convex strip along the circumferential direction, and the outlet end of the upper bowl 3 is provided with an annular groove matched with the annular convex strip along the circumferential direction.

As shown in fig. 1 and fig. 2, in the present embodiment, the inlet end of the sealing seat 1 is matched with the testing hole, the sealing seat 1 is provided with a baffle plate fastened around the testing hole, and the baffle plate is fixed on the casing 100 by welding.

As shown in fig. 1, preferably, when the testing position is at the cold end of the casing 100, the elastic sealing unit is a sealing ball 5 made of rubber, and the inlet end and the outlet end of the sealing ball 5 respectively abut against the upper half bowl 3 and the lower half bowl 2. The sealing ball 5 is simple to manufacture and has good elastic deformation capability. Alternatively, when the test position is at the cold end of the casing 100, the resilient sealing unit is a soft metal sealing groove ball 6. The axial dimension of the elastic sealing unit is larger than or equal to the axial dimension of the sealing cavity, so that the elastic sealing unit in the sealing cavity has a squeezing effect when the outer sleeve nut 4 advances towards the thread of the sealing seat 1. The radial dimension of the resilient sealing unit is larger than the radial dimension of the perforation.

As shown in fig. 2 and 3, preferably, when the test position is located at the hot end of the casing 100, the elastic sealing unit is a sealing groove ball 6 made of a soft metal, the sealing groove ball 6 is axially provided with an inlet sealing portion 62 in fit sealing with the upper half bowl 3 surface, an outlet sealing portion 61 in fit sealing with the lower half bowl 2 surface, and a deformation portion 63 connecting the inlet sealing portion 62 and the outlet sealing portion 61, a through groove is axially formed in the deformation portion 63, and a plurality of through grooves are uniformly arranged along the circumferential direction of the sealing groove ball 6 to improve the axial deformation capability of the sealing groove ball 6. The inlet seal 62 is a tapered structure that fits axially with the upper inner tapered cavity of the upper bowl 3. The deformation part 63 and the inlet sealing part 62 and the deformation part 63 and the outlet sealing part 61 are in arc connection transition, and the deformation part 63 is concave inwards, so that the deformation part 63 is corrugated, and the axial deformation capacity of the sealing groove ball 6 is improved. The strong axial deformability of the sealing groove ball 6 enables a larger axial clearance to be compensated for by pressing between the sealing seat 1, the lower bowl 2, the upper bowl 3 and the test part 200. The elastic sealing unit in the sealing cavity is extruded and deformed along the axial direction when the outer sleeve nut 4 advances towards the thread of the sealing seat 1, so that the test component 200 is connected with the upper half bowl 3 and the lower half bowl 2 in a sealing mode. In this embodiment, the outlet sealing portion 61 is a conical structure which is matched with the lower inner conical cavity of the lower bowl half 2. The upper half bowl 3, the sealing groove ball 6, the lower half bowl 2 and the sealing seat 1 are mutually pressed through the outer sleeve nut 4, so that the inlet sealing part 62 is attached and sealed with the inner surface of the upper inner conical cavity and the outlet sealing part 61 is attached and sealed with the inner surface of the lower inner conical cavity by utilizing elastic deformation generated by the deformation part 63 of the sealing groove ball 6. During testing, the self resilience of the soft metal is used for compensating the axial clearance generated among the seal seat 1, the lower half bowl 2, the seal groove ball 6, the upper half bowl 3 and the outer sleeve nut 4 due to thermal effect deformation, so that the whole testing process can be effectively sealed, and the change of a flow field in the casing 100 caused by leakage is avoided. Optionally, the soft metal is copper, nickel, a cupronickel alloy and/or an aluminum magnesium alloy. Alternatively, when the test site is at the hot end of the casing 100, the resilient sealing element is a sealing ball 5 made of rubber.

The method for mounting the test component 200 in the embodiment, which adopts the test sealing device, comprises the following steps: fixing the sealing seat 1 at the testing hole of the casing 100; sequentially penetrating a testing end of the testing component 200 through the outer sleeve nut 4, the elastic sealing mechanism and the sealing seat 1 to extend into the casing 100; the outlet end of the elastic sealing mechanism is plugged into a pore channel of the sealing seat 1, and the outer nut 4 is sleeved on the elastic sealing mechanism and is in threaded connection with the outer wall surface of the sealing seat 1; the outer nut 4 is rotated towards the seal holder 1, and the elastic sealing mechanism is extruded and deformed towards the pore channel by the extrusion force when the outer nut 4 advances on the seal holder 1 through the thread, so that the seal holder 1, the elastic sealing mechanism and the test component 200 are connected in a sealing manner.

In the present embodiment, the test part 200 is an armor lead for detecting the temperature inside the casing 100 or a pressure measuring metal pipe for detecting the pressure inside the casing 100. The seal holder 1 is welded and fixed at the test hole of the casing 100. As shown in fig. 4, when the test is not needed, the plug 7 is plugged into the pore passage of the seal holder 1, the plug 7 is sleeved on the plug 7 through the outer sleeve thread and rotates towards the seal holder 1, and the plug 7 is pressed by the extrusion force generated when the outer sleeve nut 4 advances on the seal holder 1 through the thread, so that the pore passage is plugged. As shown in fig. 1, it is desirable to install test components 200 and when the test location is at the cold end of the case 100, the test component 200 sequentially passes through the outer nut 4, the upper bowl 3, the sealing ball 5, the lower bowl 2 and the sealing seat 1 and then extends into the casing 100, the lower limit part of the lower bowl 2 is plugged into the inlet end of the pore channel, the annular convex strip at the outlet end of the upper bowl 3 is matched with the annular groove at the inlet end of the lower bowl 2, the upper limit part of the upper bowl 3 extends into the press ring of the outer nut 4, thereby installing the sealing ball 5 in the sealing cavity, finally rotating the outer sleeve nut 4 towards the sealing seat 1, the upper half bowl 3, the sealing ball 5 and the lower half bowl 2 are extruded and deformed towards the pore channel by the extrusion force of the outer nut 4 when the thread advances on the sealing seat 1, thereby hermetically connecting the seal holder 1, the lower bowl half 2, the seal ball 5, the upper bowl half 3 and the test part 200. As shown in fig. 2, when the testing component 200 needs to be installed and the testing position is located at the hot end of the casing 100, the testing component 200 sequentially passes through the outer nut 4, the upper bowl 3, the sealing groove ball 6, the lower bowl 2 and the seal holder 1 and then extends into the casing 100, the lower limit portion of the lower bowl 2 is inserted into the inlet end of the pore channel, the annular convex strip at the outlet end of the upper bowl 3 is installed in the annular groove at the inlet end of the lower bowl 2 in a matching manner, the upper limit portion of the upper bowl 3 extends into the press ring of the outer nut 4, so that the sealing groove ball 6 is installed in the seal cavity, the inlet sealing portion 62 and the outlet sealing portion 61 of the sealing groove ball 6 are respectively matched with the lower inner conical cavity of the lower bowl 2 and the upper inner conical cavity of the upper bowl 3, finally the outer nut 4 is rotated towards the seal holder 1, and the upper bowl 3, the upper bowl 3 and the lower bowl are pressed by the pressing force, The sealing ball 5 and the lower bowl 2 are pressed and deformed into the pore channel, so that the sealing seat 1, the lower bowl 2, the sealing groove ball 6, the upper bowl 3 and the test component 200 are connected in a sealing manner.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.