CN213842882U - Pressure-bearing test device for cartridge receiver - Google Patents
Pressure-bearing test device for cartridge receiver Download PDFInfo
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- CN213842882U CN213842882U CN202022673098.0U CN202022673098U CN213842882U CN 213842882 U CN213842882 U CN 213842882U CN 202022673098 U CN202022673098 U CN 202022673098U CN 213842882 U CN213842882 U CN 213842882U
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Abstract
The utility model discloses a machine casket pressure-bearing test device for aeroengine's machine casket's pressure-bearing test, include: the test rack is used for mounting a casing to be tested; the pressurizing device comprises a pressurizing pipeline for providing pressure gas to the inner cavity of the casing to be tested; the heating device comprises a plurality of heating parts which are arranged at intervals along the axial direction of the casing to be tested and are used for heating the local wall surface of the casing corresponding to each heating part; and the cooling device comprises a plurality of cooling parts which are arranged in one-to-one correspondence with the heating parts and are used for cooling the local wall surfaces corresponding to the corresponding heating parts.
Description
Technical Field
The utility model relates to an aeroengine field, in particular to casket pressure-bearing test device.
Background
The casing is an important part of an aircraft engine, and plays many roles of bearing parts, limiting a flow passage and the like. For example, a pressure-bearing casing of an aircraft engine is an important pressure-bearing part, and when the engine is proved to be airworthiness, strict test verification is required to verify that the pressure-bearing casing meets the requirement of airworthiness terms. In the test verification, the actual working temperature environment of the casing is fully considered. Therefore, in the test of the pressure-bearing type casing, not only the application of the pressure load but also the simulation of the temperature environment is considered.
At present, the technical difficulty of high-temperature and high-pressure tests of casings at home and abroad focuses on the application mode of temperature loads, and two methods are mainly adopted: 1) directly heating the casing by adopting high-temperature air, an induction coil, a resistance wire and the like, and simulating the actual temperature environment of the casing; 2) the test is carried out at normal temperature, the temperature load equivalence is carried out by adopting a mode of increasing the internal pressure load, and the equivalence method needs to be verified.
However, for a pressure-bearing casing with an obvious temperature gradient along the axial direction, both the two test technologies are difficult to simulate a real temperature environment, and the test effect is not ideal.
Disclosure of Invention
An object of the utility model is to provide a receiver pressure-bearing test device for aeroengine's receiver pressure-bearing test, this receiver pressure-bearing test device can carry out comparatively accurate simulation to the pressure load and the operating temperature environment that the receiver bore.
The utility model discloses a machine casket pressure-bearing test device for aeroengine's machine casket's pressure-bearing test, include:
the test rack is used for mounting a casing to be tested;
the pressurizing device comprises a pressurizing pipeline for providing pressure gas to the inner cavity of the casing to be tested;
the heating device comprises a plurality of heating parts which are arranged at intervals along the axial direction of the casing to be tested and are used for heating the local wall surface of the casing corresponding to each heating part;
and the cooling device comprises a plurality of cooling parts which are arranged in one-to-one correspondence with the heating parts and are used for cooling the local wall surfaces corresponding to the corresponding heating parts.
In some embodiments, the plurality of cooling portions include a plurality of cooling pipes for outputting a cooling fluid to cool the partial wall surface corresponding to each corresponding heating portion
In some embodiments, further comprising:
temperature detection means for detecting a temperature of each of the local wall surfaces;
a control device in signal connection with the heating device, the cooling device and the temperature detection device, and configured to control and adjust heating power of the plurality of heating portions of the heating device and control and adjust flow rate of cooling fluid of the plurality of cooling portions of the cooling device according to a detection result of the temperature detection device.
In some embodiments, the cooling device comprises:
a gas source connected to the plurality of cooling tubes for providing cooling air to the plurality of cooling tubes;
and the adjustable throttle valves are in one-to-one correspondence with the cooling pipes, are respectively connected between the cooling pipes corresponding to the adjustable throttle valves and the air source, and are used for respectively controlling the flow of the cooling air output by the cooling pipes corresponding to the adjustable throttle valves.
In some embodiments, the air source is an air compressor, and the cooling device further comprises a pressure relief valve disposed between the air compressor and the plurality of cooling tubes.
In some embodiments, the pressurizing device comprises:
the air compressor is connected with an inlet of an inner cavity of the casing to be tested through an air inlet pipeline and used for providing pressure air for the inner cavity;
the air heater is arranged on the air inlet pipeline and used for heating the air output by the air compressor;
and the air inlet valve is arranged on the air inlet pipeline, is connected between the air heater and the inlet of the inner cavity and is used for opening or closing the air inlet pipeline for conveying pressure gas to the inlet of the inner cavity.
In some embodiments, the pressurizing device further comprises:
the reversing valve is arranged on an air inlet pipeline between the air compressor and the air inlet valve, and comprises a first air outlet, a second air outlet and an air inlet connected with the air compressor, wherein the first air outlet is connected with the air inlet valve;
the exhaust silencer is connected with the second air outlet through an exhaust pipeline and is used for silencing air passing through the exhaust silencer;
and the air cooler is connected to the exhaust pipeline between the second air outlet and the exhaust silencer and used for cooling air passing through the air cooler.
In some embodiments, the pressurizing device further comprises:
the air outlet pipeline is connected with the outlet of the inner cavity and used for discharging the pressure gas in the inner cavity;
and the air outlet valve is arranged on the air outlet pipeline and used for opening or closing the air outlet pipeline.
In some embodiments, the test rack comprises:
the mounting seat is fixedly and hermetically connected with one end of the casing to be tested and comprises an air inlet communicated with the inner cavity of the casing, and the pressurizing device supplies pressure gas to the inner cavity of the casing to be tested through the air inlet;
the sealing part is fixedly and hermetically connected with the other end of the casing to be tested and comprises an air outlet communicated with the inner cavity of the casing, and pressure gas in the inner cavity of the casing is discharged outwards through the air outlet;
the inner cylinder is used for being arranged inside the casing to be tested, two ends of the inner cylinder are respectively fixedly connected with the mounting seat and the sealing part, and the outer surface of the inner cylinder, the inner surface of the casing, the mounting seat and the sealing part jointly limit the shape of an inner cavity of the casing for bearing the pressure gas during testing.
In some embodiments, the testing device further comprises a heat insulation cover, wherein the heat insulation cover is used for being sleeved outside the casing to be tested so as to insulate the wall surface to be tested of the casing from the outside.
Based on the utility model provides a machine casket pressure-bearing test device, through setting up pressure device, can provide accurate pressure load to the experiment of machine casket, through setting up a plurality of heating portions and the cooling part that corresponds that set up along quick-witted casket axial interval, through the heating of heating portion and the cooling part's cooling control, can comparatively accurately simulate out the temperature environment that experimental machine casket during operation is different along axial temperature, the cooperation of heating portion and cooling part can be adjusted the temperature of the local wall of machine casket fast, satisfy experimental requirement fast.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic structural diagram of a casing pressure-bearing test device according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structural view of a casing pressure-bearing test device according to an embodiment of the present invention;
fig. 3 is a schematic partial sectional structural view of the casing pressure-bearing test device shown in fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 3, the casing pressure-bearing test device of the present embodiment is used for a pressure-bearing test of a casing 100 of an aircraft engine, and includes a test frame, a pressurizing device, a heating device, and a cooling device.
The test stand is used to mount the casing 100 to be tested.
The pressurizing means comprise a pressurizing line for supplying pressurized gas to the inner cavity of the casing 100 to be tested.
The heating device includes a plurality of heating portions 31 arranged at intervals in the axial direction of the casing 100 to be tested, and each heating portion 31 is used for heating a partial wall surface of the casing 100 corresponding to each heating portion. As shown in fig. 1 to 3, in the test, a plurality of heating parts 31 are arranged at intervals in the axial direction of the casing 100. The casing 100 has partial wall surfaces in the axial direction, each heating portion 31 corresponds to one partial wall surface, and each heating portion can independently heat each partial wall surface, so that each heating portion 31 can independently heat the corresponding partial wall surface. In the test, different test temperatures in the axial direction may be designed for the wall surface of the casing 100 according to the operating temperature environment of the casing 100, and the heating units 31 may be distributed in the axial direction of the casing 100 so as to independently heat the corresponding partial wall surface of the casing 100 according to the designed test temperatures. The heating parts 31 may include a high temperature air pipe, a resistance wire, an induction coil, etc., and in the embodiment shown in the drawings, the plurality of heating parts 31 include a plurality of ring-shaped resistance heaters.
The cooling device includes a plurality of cooling units 45 provided in one-to-one correspondence with the plurality of heating units 31, and the plurality of cooling units 45 are configured to cool the partial wall surfaces corresponding to the respective corresponding heating units 31. Each cooling unit 45 corresponds to one heating unit 31, that is, each cooling unit 45 corresponds to one partial wall surface, and each cooling unit 45 can be independently controlled, so that each cooling unit 45 can independently cool the corresponding partial wall surface. In the test, when the temperature of a certain local wall surface of the casing exceeds the target temperature, the cooling unit 45 corresponding to the local wall surface may be turned on to cool down, and when the temperature of the certain local wall surface of the casing is lower than the target temperature, the heating unit 31 corresponding to the local wall surface may be turned on to heat up.
The utility model discloses a machine casket pressure-bearing test device, through setting up pressure device, can provide accurate pressure load to the experiment of machine casket 100, through setting up a plurality of heating portions 31 and the cooling part 45 that corresponds that set up along machine casket 100 axial interval, heating and cooling part 45's cooling control through heating portion 31, can comparatively accurately simulate out the different temperature environment of axial temperature in test machine casket 100 during operation, heating portion 31 and cooling part 45's cooperation, can adjust the temperature of the local wall of machine casket 100 fast, satisfy the test requirement fast.
In some embodiments, as shown in fig. 1 to 3, the plurality of cooling portions 45 includes a plurality of cooling pipes for outputting a cooling fluid to cool the partial wall surface corresponding to each corresponding heating portion 31. In the embodiment shown, the cooling tube outputs cooling air to cool the wall of the casing 100.
In some embodiments, as shown in fig. 1, the casing pressure-bearing testing apparatus further includes a temperature detecting device 51 and a control device 8.
The temperature detection device 51 is used for detecting the temperature of each local wall surface; the temperature detecting device 51 may include a plurality of thermocouples respectively disposed on the plurality of local wall surfaces, and each thermocouple may detect the temperature of the local wall surface in real time.
The control device 8 is in signal connection with the heating device, the cooling device and the temperature detection device 51, and is configured to control and adjust the heating power of the plurality of heating portions 31 of the heating device and the flow rate of the cooling fluid of the plurality of cooling portions 45 of the cooling device according to the detection result of the temperature detection device 51. The temperature detection device 51 can detect the temperature of each local wall surface, and when the local wall surface temperature is different from the target temperature, the control device 8 controls the heating unit 31 to heat the local wall surface or controls the cooling unit 45 to cool the local wall surface according to the target temperature.
In some embodiments, as shown in FIG. 1, the cooling device includes a gas supply and a plurality of adjustable throttle valves 43.
The air supply is connected to the plurality of cooling tubes for providing cooling air to the plurality of cooling tubes.
The plurality of adjustable throttle valves 43 correspond to the plurality of cooling pipes one to one, are respectively connected between the cooling pipes and the air source corresponding to the cooling pipes, and are used for respectively controlling the flow rates of the cooling air output by the cooling pipes corresponding to the cooling pipes. In the embodiment shown in the figures, the cooling device comprises three cooling portions 45, the three cooling portions 45 comprising three cooling pipes. The air source is the air compressor 21, the air compressor 21 outputs cooling air, the cooling air is divided into three branches and enters a cooling pipe through an adjustable throttle valve 43, the cooling pipe of each branch corresponds to a cooling pipe, and the flow rate of the cooling air output by the cooling pipe of each branch can be independently controlled by the adjustable throttle valve 43 on the branch on which the branch is located.
In some embodiments, such as the embodiment shown in FIG. 1, the air source is an air compressor 21, and the cooling device further includes a pressure relief valve 42 disposed between the air compressor 21 and the plurality of cooling tubes. The air compressor 21 outputs compressed air, the compressed air is decompressed by the decompression valve 42, enters each branch, and finally is output as cooling air for cooling the corresponding local wall surface through each cooling pipe. In some embodiments, the cooling device further comprises a plurality of flow meters 44, each branch having a flow meter 44, and a shut-off valve 41 between the pressure reducing valve and the air supply.
In some embodiments, as shown in FIG. 1, the pressurizing means comprises an air compressor 21, an air heater 22, and an intake valve 27.
The air compressor 21 is connected with an inlet of an inner cavity of the casing 100 to be tested through an air inlet pipeline and is used for providing pressure gas for the inner cavity;
the air heater 22 is arranged on the air inlet pipeline, and the air heater 22 is used for heating air output by the air compressor 21;
an inlet valve 27 is arranged on the inlet duct, the inlet valve 27 being connected between the air heater 22 and the inlet of the cavity for opening or closing the inlet duct for feeding pressurized air to the inlet of the cavity. The pressure gas entering the inner cavity of the air casing 100 according to the embodiment can perform pressure loading on the casing 100, and simultaneously can perform primary preheating on the wall surface of the casing 100, and then the temperature of each local wall surface of the casing 100 can be adjusted according to the target temperature under the temperature adjusting effect of the heating device and the cooling device.
In some embodiments, as shown in FIG. 1, the pressurizing device further includes a diverter valve 24, an exhaust muffler, and an air cooler.
The reversing valve 24 is arranged on an air inlet pipeline between the air compressor 21 and the air inlet valve 27 and comprises a first air outlet, a second air outlet and an air inlet connected with the air compressor 21, the first air outlet is connected with the air inlet valve 27, the air inlet is communicated with the first air outlet at the first valve position of the reversing valve 24, and the air inlet is communicated with the second air outlet at the second valve position of the reversing valve 24;
the exhaust silencer is connected with the second air outlet through an exhaust pipeline and is used for silencing air passing through the exhaust silencer;
the air cooler is connected to the exhaust duct between the second air outlet and the exhaust muffler for cooling the air passing therethrough. In the embodiment shown in the figure, the pressurizing means comprises an exhaust muffler first exhaust muffler 26 and a first air cooler 25 which are located on the exhaust pipe, and in the embodiment, when the inlet of the casing 100 is closed, the air output from the air compressor 21 can be discharged to the outside through the exhaust pipe after cooling by the first air cooler and silencing by the first exhaust muffler by switching the valve of the direction valve to the second valve position.
In some embodiments, as shown in fig. 1, the pressurizing means and the cooling means share the same air supply, i.e. share the air compressor 21, and the shut-off valve 41 is opened when the cooling means is active and closed when the cooling means is inactive. A flow regulating valve 23 is arranged between the air compressor and the reversing valve, and the flow regulating valve is a throttle valve with adjustable opening.
In some embodiments, as shown in fig. 1, the pressurizing means further comprises an outlet conduit and an outlet valve 71.
The air outlet pipeline is connected with an outlet of the inner cavity and used for discharging pressure gas in the inner cavity;
the air outlet valve 71 is disposed on the air outlet pipe and is used for opening or closing the air outlet pipe.
In some embodiments, the casing pressure-bearing testing apparatus further includes a pressure detection device 61 for detecting the pressure of the pressure gas in the inner cavity of the casing 100, the control device is in signal connection with the air heater 22, the flow control valve 23, the reversing valve 24, the air inlet valve 27, the heating portion 31, the stop valve 41, the adjustable throttle valve 43, the air outlet valve 71, the temperature detection device 51 and the pressure detection device 61, and the control device 8 is configured to signal control and adjust the actions of the above devices and components.
In the embodiment shown in the figure, a second air cooler 72 and a second exhaust silencer 73 are also provided on the outlet pipe.
In some embodiments, as shown in fig. 2 and 3, the test rig includes a mount 11, a seal 12, and an inner barrel 13.
The mounting seat 11 is used for being fixedly and hermetically connected with one end of the casing 100 to be tested, and comprises an air inlet 111 communicated with the inner cavity of the casing 100, and a pressurizing device supplies pressure gas to the inner cavity of the casing 100 to be tested through the air inlet 111;
the sealing part 12 is used for being fixedly and hermetically connected with the other end of the casing 100 to be tested, and comprises an air outlet 121 communicated with the inner cavity of the casing 100, and pressure gas in the inner cavity of the casing 100 is discharged outwards through the air outlet 121;
the inner cylinder 13 is used for being arranged inside the casing 100 to be tested, two ends of the inner cylinder are respectively and fixedly connected with the mounting seat 11 and the sealing part 12, and the outer surface of the inner cylinder 13, the inner surface of the casing 100, the mounting seat 11 and the sealing part 12 jointly define the shape of an inner cavity of the casing 100 for bearing pressure gas during testing. The inner cylinder 13 and the sealing part 12 and the mounting part 11 can be fixedly connected through bolt connection. The sealing portion 12 is connected to the wall surface of the casing 100 in a sealing manner, and in the embodiment shown in the figure, the casing 100 includes a main body portion 120 and an adapter portion 110, and the sealing portion 12 is connected to the inner wall surface of the adapter portion 110 in a sealing manner. The outer surface of the inner cylinder and the annular cavity between the casing 100 form an inner cavity when the casing 100 is tested, pressure gas is introduced into the annular cavity during the test, and due to the arrangement of the structures such as the mounting part 11, the inner cylinder, the sealing part 12 and the like, the axial force of the pressure gas in the annular cavity is mutually offset by the sealing part 12 and the mounting part 11, so that the pressure gas can not apply the axial force to the casing 100, and the accuracy of the pressure-bearing test of the casing 100 is improved.
In some embodiments, the casing pressure-bearing testing apparatus further includes an insulating cover, and the insulating cover is configured to be sleeved outside the casing 100 to be tested, so as to insulate the wall surface of the casing 100 to be tested from the outside. In the embodiment shown in the figures, the insulating cover comprises an upper insulating portion 93, a middle insulating portion 92 and a lower insulating portion 91.
The working process of the casing pressure-bearing test device of one embodiment of the invention is shown below.
First, the casing 100 was mounted on a test stand, and a heating device, a cooling device, and a pressurizing device were mounted.
A loading stage:
firstly, the air inlet valve 27 and the air outlet valve 71 are opened, the air compressor 21 and the air heater 22 are started, the reversing valve 24 is adjusted to the first valve position, and the pressure air heated by the air heater 22 enters the inner cavity of the casing 100 from the air inlet valve 27 to preheat the wall surface of the casing 100 and is discharged from the air outlet valve 71.
And starting the heating device, adjusting each heating part 31 to different heating powers according to the target temperature of each local wall surface, and when the temperature detection device detects 51 that the temperature of a certain local wall surface is over-adjusted, opening the cooling device, and adjusting the cooling air output by each cooling part to a proper flow rate to enable each local wall surface to reach a preset temperature.
The air outlet valve 71 is closed, when the pressure detecting device 61 detects that the pressure of the pressure gas in the inner cavity of the casing 100 reaches the test value, the air inlet valve 27 is closed, the reversing valve 24 is adjusted to the second valve position, and the air output by the air compressor 21 is exhausted to the outside through the reversing valve 24, the first air cooler 25 and the first exhaust muffler 26. Data such as strength and deformation of the casing 100 during the test are collected.
And (3) a load-holding test stage:
when the temperature of a certain local wall surface exceeds a target temperature, the flow rate of cooling air output by the cooling portion corresponding to the local wall surface is increased, and when the temperature of a certain local wall surface is lower than the target temperature, the power of the heating portion corresponding to the local wall surface is increased, and data such as strength and deformation of the casing 100 in a test are acquired.
An unloading stage:
the gas outlet valve 71 is opened to complete the unloading of the pressure gas of the casing 100, and when the temperature of the local wall surface changes during the unloading process, the heating power of the corresponding heating part or the flow rate of the cooling air of the cooling part is adjusted to the target temperature, and the data of the strength, the deformation and the like of the casing 100 during the test are acquired.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (10)
1. A machine casket pressure-bearing test device for aeroengine's machine casket (100) pressure-bearing test, its characterized in that includes:
a test rack for mounting a casing (100) to be tested;
a pressurizing device comprising a pressurizing pipeline for providing pressure gas to the inner cavity of the casing (100) to be tested;
the heating device comprises a plurality of heating parts (31) which are arranged at intervals along the axial direction of the casing (100) to be tested and are used for heating the partial wall surface of the casing (100) corresponding to each heating part;
the cooling device comprises a plurality of cooling parts (45) which are arranged in one-to-one correspondence with the plurality of heating parts (31), and the plurality of cooling parts (45) are used for cooling the local wall surfaces corresponding to the heating parts (31) respectively.
2. The casing pressure-bearing test apparatus according to claim 1, wherein the plurality of cooling portions (45) include a plurality of cooling pipes for outputting a cooling fluid to cool the partial wall surface corresponding to each corresponding heating portion (31).
3. The receiver pressure test apparatus of claim 2, further comprising:
temperature detection means (51) for detecting the temperature of each of the local wall surfaces;
a control device (8) in signal connection with the heating device, the cooling device and the temperature detection device (51), configured to control and adjust the heating power of the plurality of heating parts (31) of the heating device and the flow rate of the cooling fluid of the plurality of cooling parts (45) of the cooling device according to the detection result of the temperature detection device (51).
4. The receiver pressure test apparatus of claim 2, wherein said cooling means comprises:
a gas source connected to the plurality of cooling tubes for providing cooling air to the plurality of cooling tubes;
and the adjustable throttle valves (43) correspond to the cooling pipes one by one, are respectively connected between the cooling pipes corresponding to the adjustable throttle valves and the air source, and are used for respectively controlling the flow of the cooling air output by the cooling pipes corresponding to the adjustable throttle valves.
5. The receiver pressure test apparatus of claim 4, wherein said air source is an air compressor (21), and said cooling apparatus further comprises a pressure reducing valve (42) disposed between said air compressor (21) and said plurality of cooling tubes.
6. The receiver pressure test apparatus of claim 1, wherein the pressurizing means comprises:
the air compressor (21) is connected with an inlet of an inner cavity of the casing (100) to be tested through an air inlet pipeline and is used for providing pressure gas for the inner cavity;
an air heater (22) arranged on the air inlet pipeline and used for heating the air output by the air compressor (21);
and the air inlet valve (27) is arranged on the air inlet pipeline, is connected between the air heater (22) and the inlet of the inner cavity and is used for opening or closing the air inlet pipeline for conveying the pressure gas to the inlet of the inner cavity.
7. The receiver pressure test apparatus of claim 6, wherein said pressurizing means further comprises:
the reversing valve (24) is arranged on an air inlet pipeline between the air compressor (21) and the air inlet valve (27) and comprises a first air outlet, a second air outlet and an air inlet connected with the air compressor (21), the first air outlet is connected with the air inlet valve (27), the air inlet is communicated with the first air outlet at a first valve position of the reversing valve (24), and the air inlet is communicated with the second air outlet at a second valve position of the reversing valve (24);
the exhaust silencer is connected with the second air outlet through an exhaust pipeline and is used for silencing air passing through the exhaust silencer;
and the air cooler is connected to the exhaust pipeline between the second air outlet and the exhaust silencer and used for cooling air passing through the air cooler.
8. The receiver pressure test apparatus of claim 6, wherein said pressurizing means further comprises:
the air outlet pipeline is connected with the outlet of the inner cavity and used for discharging the pressure gas in the inner cavity;
and the gas outlet valve (71) is arranged on the gas outlet pipeline and used for opening or closing the gas outlet pipeline.
9. The receiver pressure test apparatus of claim 1, wherein the test stand comprises:
the mounting seat (11) is fixedly and hermetically connected with one end of the casing (100) to be tested, and comprises an air inlet (111) communicated with the inner cavity of the casing (100), and the pressurizing device supplies pressure gas to the inner cavity of the casing (100) to be tested through the air inlet (111);
the sealing part (12) is fixedly and hermetically connected with the other end of the casing (100) to be tested and comprises an air outlet (121) communicated with the inner cavity of the casing (100), and pressure gas in the inner cavity of the casing (100) is discharged outwards through the air outlet (121);
the inner cylinder (13) is arranged in the casing (100) to be tested, two ends of the inner cylinder are fixedly connected with the mounting seat (11) and the sealing part (12) respectively, and the outer surface of the inner cylinder (13), the inner surface of the casing (100), the mounting seat (11) and the sealing part (12) jointly limit the shape of an inner cavity of the casing (100) used for bearing the pressure gas during testing.
10. The casing pressure-bearing test device as claimed in claim 1, further comprising a heat-insulating cover, wherein the heat-insulating cover is used for being sleeved outside the casing (100) to be tested so as to insulate the wall surface to be tested of the casing (100) from the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022673098.0U CN213842882U (en) | 2020-11-18 | 2020-11-18 | Pressure-bearing test device for cartridge receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022673098.0U CN213842882U (en) | 2020-11-18 | 2020-11-18 | Pressure-bearing test device for cartridge receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213842882U true CN213842882U (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022673098.0U Active CN213842882U (en) | 2020-11-18 | 2020-11-18 | Pressure-bearing test device for cartridge receiver |
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| CN (1) | CN213842882U (en) |
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2020
- 2020-11-18 CN CN202022673098.0U patent/CN213842882U/en active Active
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