CN217403633U - Quick response high pressure water temperature caliber - Google Patents
Quick response high pressure water temperature caliber Download PDFInfo
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- CN217403633U CN217403633U CN202221416200.1U CN202221416200U CN217403633U CN 217403633 U CN217403633 U CN 217403633U CN 202221416200 U CN202221416200 U CN 202221416200U CN 217403633 U CN217403633 U CN 217403633U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The utility model discloses a quick response water under high pressure temperature caliber, include: a mounting bracket detachably disposed in a cooling water pipe of the arc heater; a plurality of flow guide holes are formed in the mounting frame; the detection rod of the temperature sensor is clamped on the mounting frame; gaps exist between the detection head at the front end of the detection rod and the plurality of flow guide holes. The utility model has the advantages of easy integral assembly, convenient control, simple component structure, low cost and strong applicability and functionality of the device; the device can be applied to temperature measurement of water flow in the cooling water pipe of the electric arc heater, so that the thermal efficiency of the electric arc heater is evaluated, the total gas enthalpy of high-temperature air generated by the electric arc heater is calculated, and the device plays a role in closing the work parameters and the running health state of the electric arc heater.
Description
Technical Field
The utility model relates to a pneumatic heat protection ground test of aerospace vehicle is related to the device field, specifically is a quick response water under high pressure temperature caliber.
Background
At present, with the development of aerospace craft, the requirements for ground heat protection tests are higher and higher, the model size is larger and larger, the test time is longer and longer, and the flow field parameters are higher and higher, and the requirements of generating high-temperature and high-pressure air flow by an electric arc heater are fully met.
The basic working principle of the arc heater is as follows: compressed air with adjustable pressure and flow is injected into an electric arc heater, a power supply system breaks down and ionizes the air to form plasma electric arcs, the air is heated to a high-temperature state, and the accuracy of required temperature is guaranteed by stable electric parameters and airflow parameters. The high-temperature gas is accelerated to the required speed through the conical spray pipe to form high-enthalpy and high-speed gas flow, and the model is pneumatically heated in the test section. And after the plasma gas flow flowing out of the test section is subjected to speed reduction and pressure rise through the diffusion section, the plasma gas flow is cooled in a cooler, flows into a vacuum system and is finally recycled to a gas tank for the next test. High-pressure air, cooling water, a power supply and the like are uniformly regulated and controlled by the central control system, the system cooperation test is completed, the severe environment when the spacecraft enters the atmosphere or flies at supersonic speed is simulated, and relevant test data are provided for aircraft researchers.
The temperature of cooling water of the electric arc heater is a key parameter for calculating the total enthalpy of high-pressure high-temperature airflow output by the electric arc heater and evaluating the efficiency and the health state of the heater.
When the temperature of cooling water of an electric arc heater is measured at present, because a temperature sensor detection rod is thin and has insufficient strength, vibration damage can be easily caused by direct installation in high-pressure high-speed water flow, the measurement depth cannot be quickly adjusted, and different test requirements cannot be easily met; the tightness of the directly assembled temperature sensor is not strong, and high-pressure water is easy to leak; the problems of poor water temperature measurement precision and narrow measurement window period also exist.
In view of the above, it is highly desirable to design a high-pressure water temperature measuring device which can achieve fast response, high precision, fast adjustment of measuring depth, and is suitable for the water temperature measuring requirements of high-pressure high-speed water flow measuring environment.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages which will be described later. To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a fast response high pressure water temperature measurer comprising:
a mounting bracket detachably disposed in a cooling water pipe of the arc heater; a plurality of flow guide holes are formed in the mounting frame;
the detection rod of the temperature sensor is clamped on the mounting frame; the detection head at the front end of the detection rod corresponds to the plurality of flow guide holes at intervals.
Preferably, the device further comprises an assembling pipe; the lower end of the assembling pipe is fixedly connected on a cooling water pipe of the electric arc heater in a conducting manner; the upper end of the mounting rack is provided with a supporting disk; the outer diameter of the support disc is larger than the inner diameter of the assembling pipe; the lower end of the mounting rack is a strip-shaped plate; the strip-shaped plate is matched with the inner cavity of the assembly pipe; after the strip-shaped plate is inserted into the inner cavity of the assembling pipe, the supporting disk is lapped and abutted against the port at the upper end of the assembling pipe, so that detachable connection is realized.
Preferably, an annular limiting groove is formed in the upper end port of the assembly pipe; a limiting ring matched with the limiting groove is integrally arranged on the outer side of the supporting plate in a surrounding manner; the limiting ring is embedded into the limiting groove to realize stable connection.
Preferably, a plurality of grooves are arranged on the strip-shaped plate at equal intervals; a fixing ring is fixedly welded in each groove; the detection rod of the temperature sensor integrally and movably penetrates through the plurality of fixed rings to form clamping.
Preferably, the support plate is provided with a limiting hole; the limiting holes correspond to the fixing rings; and the detection rod of the temperature sensor penetrates through the limiting hole and then sequentially penetrates through the multiple fixing rings.
Preferably, wherein an external thread is provided at an upper end of the fitting pipe; the top of the pressing screw cover is provided with an opening; the lower part of the pressing screw cap is provided with an internal thread matched with the external thread; the pressing screw cap is screwed on the upper end of the assembling pipe and presses the supporting plate through the edge part of the opening; the detection rod of the temperature sensor penetrates through the opening, the limiting hole and the fixing rings in a movable mode, and accordingly clamping is achieved.
Preferably, the plurality of flow guiding holes are arranged on the strip-shaped plate at intervals to form a conducting state; every two be provided with two water conservancy diversion holes between the solid fixed ring.
Preferably, an O-shaped damping ring is sleeved on the inner ring of each fixing ring; the detection rod of the temperature sensor integrally and movably penetrates into the O-shaped damping rings, so that the clamping is formed.
Preferably, wherein, the internal diameter of the lower extreme internal diameter of the upper end internal diameter of spacing hole is little big, and the inside cover of lower extreme is equipped with O type sealing washer.
Preferably, the temperature sensor is a PT100 platinum resistance temperature sensor; and the detection head of the temperature sensor is packaged by a copper shell.
The utility model discloses at least, include following beneficial effect:
the utility model discloses in, the mounting bracket loading and unloading are convenient, can be convenient quick insert to the cooling water pipe, set up a plurality of water conservancy diversion holes along the rivers direction on the mounting bracket, can let the rivers of different radial depth in the cooling water pipe can flow through different water conservancy diversion holes, reduce flow resistance and rivers impact force, improve flow velocity and convection heat transfer coefficient, have improved and measured response speed promptly, have reduced the requirement to the mounting bracket bulk strength again; because the temperature sensor only can sense the temperature by the detection head, in order to measure the water temperatures at different depths, the insertion depth of the detection rod is adjusted by stretching, so that the detection head at the front end of the detection rod can correspond to a plurality of diversion holes at intervals, and the temperature of the water flow flowing through the diversion holes can be detected, thereby realizing the purpose of detecting the temperature of the water flow in the pipe at different radial depths; the device is easy to assemble, convenient to control, simple in component structure, low in cost and strong in applicability and functionality; the device can be applied to temperature measurement of water flow in the cooling water pipe of the electric arc heater, so that the thermal efficiency of the electric arc heater is evaluated, the total gas enthalpy of high-temperature air generated by the electric arc heater is calculated, and the device plays a role in closing the work parameters and the running health state of the electric arc heater.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a general block diagram of the present invention assembled to a cooling water tube of an electric arc heater;
FIG. 2 is a detailed structural view of the upper end of the present invention;
FIG. 3 is a side view of the overall structure of the present invention;
fig. 4 is a bottom view of the overall structure of the present invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description. It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or combinations thereof. It should be noted that, in the description of the present invention, the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, such as "connected," which may be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or a connection between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention in a specific context. Furthermore, in the present disclosure, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature in direct contact with the first and second features, or in indirect contact with the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. Fig. 1-4 show that the utility model provides a quick response water under high pressure temperature measurement ware, include:
a mounting bracket 1 detachably disposed in a cooling water pipe 10 of the arc heater; a plurality of flow guide holes 11 are formed in the mounting rack 1;
the temperature sensor 2 is provided with a detection rod 21 clamped on the mounting rack 1; gaps exist between the detection head 22 at the front end of the detection rod 21 and the guide holes 11.
The working principle is as follows: when an electric arc wind tunnel ground heat protection test is carried out, high-temperature air is generated in the wind tunnel immediately after an electric arc heater is started, and cooling water is continuously introduced into a cooling water pipe 10 of the electric arc heater so as to carry out water-cooling circulation cooling on the electric arc heater for the purpose that the electric arc heater can continuously and stably work; in the operation process, the detection rod 21 is clamped on the mounting frame 1, and the relative position between the detection rod 21 and the mounting frame 1 can only be changed by pulling and pulling external force, when the detection rod 21 loses the external force, the relative position between the detection rod 21 and the mounting frame 1 can be kept unchanged, so that an operator can change the radial depth of the whole detection rod 21 in the cooling water pipe 10 by pushing and pulling the detection rod 21 according to different test requirements, and a plurality of diversion holes 11 with different positions are completely immersed in high-pressure high-speed water flow in the cooling water pipe 10; at the moment, an operator can pull the detection rod 21 of the temperature sensor 2, so that the detection head 22 at the front end of the detection rod can touch different radial depths in the water flow in the pipe, the purpose of measuring the water temperatures of different radial depths in the cooling water pipe 10 is achieved, and different test requirements of the operator are met;
in the design, the mounting frame 1 is convenient to assemble and disassemble and can be conveniently and quickly connected to the cooling water pipe 10, the mounting frame 1 is provided with the plurality of flow guide holes 11 along the water flow direction, so that water flows with different radial depths in the cooling water pipe 10 can flow through different flow guide holes 11, the flow resistance and the water flow impact force are reduced, the flow speed and the convective heat transfer coefficient are improved, the measurement response speed is improved, and the requirement on the overall strength of the mounting frame 1 is reduced; because the temperature sensor 2 can only sense the temperature by the detection head 22, in order to measure the water temperatures at different depths, the insertion depth of the detection rod 21 is adjusted in a telescopic way, so that the detection head 22 at the front end of the detection rod 21 can correspond to a plurality of the diversion holes 11 at intervals, and the temperature of the water flow flowing through the diversion holes 11 can be detected, thereby realizing the purpose of detecting the temperature of the water flow at different radial depths in the pipe;
the device is easy to assemble, convenient to control, simple in component structure, low in cost and strong in applicability and functionality; the device can be applied to the temperature measurement of water flow in the cooling water pipe 10 of the electric arc heater, so that the heat efficiency of the electric arc heater is evaluated, the total gas enthalpy of high-temperature air generated by the electric arc heater is calculated, and the device plays a role in verifying the working parameters and the running health state of the electric arc heater.
In the above technical solution, the device further comprises an assembly pipe 3; the lower end of the assembling pipe 3 is fixedly connected with a cooling water pipe 10 of the electric arc heater in a conducting way; the upper end of the mounting rack 1 is provided with a support disc 12; the outer diameter of the support disc 12 is larger than the inner diameter of the assembling pipe 3; the lower end of the supporting disc 12 is a strip-shaped plate 13; the strip-shaped plate 13 is matched with the inner cavity of the assembling pipe 3; after the strip-shaped plate 13 is inserted into the inner cavity of the assembling pipe 3, the supporting disk 13 is lapped and abutted against the upper end port of the assembling pipe 3, so that detachable connection is realized.
The working principle is as follows: in this kind of design, the side at electric arc heater's condenser tube 10 is fixed in whole assembly pipe 3 direct external connection, make things convenient for the operation personnel in time to put in mounting bracket 1, bar 13 matches with the inner chamber of assembly pipe 3, can be smooth insert the inside of condenser tube 10 with mounting bracket 1 from the inner chamber of assembly pipe 3, because the external diameter of supporting disk 12 is greater than the internal diameter of assembly pipe 3, so can let whole supporting disk 12 direct overlap joint support lean on the upper end port of assembly pipe 3, keep overall structure stable, it is all comparatively convenient to take out to insert mounting bracket 1.
In the above technical solution, an annular limiting groove 31 is provided on an upper end port of the assembly pipe 3; a limiting ring 121 matched with the limiting groove 31 is integrally arranged on the outer side of the supporting disc 12 in a surrounding mode; the spacing ring 121 is embedded in the spacing groove 31 to realize stable connection.
The working principle is as follows: in this kind of design, when the whole supporting disk 12 of overlap joint installation, can be with the spacing ring 121 joint of supporting disk 12 lower extreme in spacing groove 31 for the assembly connection of the whole and assembly pipe 3 of mounting bracket 1 is more stable.
In the above technical solution, the strip-shaped plate 13 is provided with a plurality of grooves 131 at equal intervals; a fixing ring 132 is fixedly welded in each groove 131; the detecting rod 21 of the temperature sensor 2 is integrally inserted into the plurality of fixing rings 132 to form a clamping device.
The working principle is as follows: in this design, the plurality of fixing rings 132 function to fix and protect the slender detecting rod 21 of the temperature sensor 2, and prevent the detecting rod 21 of the temperature sensor 2 from being damaged by the impact of high-pressure and high-speed water; because the temperature can be sensed to the detection head 22 of detection pole 2 only front end, for the temperature of measuring the different degree of depth, just need adjust the depth of insertion of detection pole 2, a plurality of solid fixed rings 132 of interval welded can realize still effectively fixing detection pole 2 when the depth of insertion is adjusted to detection pole 2 to satisfy under the condition of not dismantling mounting bracket 1, realize the measurement demand of the different degree of depth temperature fast.
In the above technical solution, the supporting disc 12 is provided with a limiting hole 122; the limiting hole 122 is coaxially arranged with the plurality of fixing rings 132; the detection rod 21 of the temperature sensor 2 penetrates through the limiting hole 122 and then sequentially penetrates through the multiple fixing rings 132.
The working principle is as follows: in this design, before the detection rod 21 of the temperature sensor 2 is inserted into the plurality of fixing rings, the detection rod is firstly inserted into the limiting hole 122 of the support plate in a penetrating manner, so as to form primary stable fixing, and further improve the overall stability of the detection rod 21 after being assembled.
In the above technical solution, the upper end of the assembly pipe 3 is provided with an external thread 32; the pressing screw cap 4 is provided with an opening 41 at the top; the lower part of the pressing screw cap 4 is provided with an internal thread 42 matched with the external thread 32; the pressing screw cap 4 is screwed on the upper end of the assembling pipe 3, and presses the supporting disk 12 through the edge part of the opening 41; the detection rod 21 of the temperature sensor 2 is movably inserted from the opening 41, the limiting hole 122 and the plurality of fixing rings 132 in sequence, so that the clamping is realized.
The working principle is as follows: in the design, the pressing screw cap 4 is arranged and can be stably screwed on the upper end of the assembling pipe 3, so that the supporting plate 12 of the mounting frame 1 is pressed and sealed, and the mounting frame 1 is ensured to be more stable after being inserted into and mounted on the assembling pipe 3; meanwhile, the upper end of the compression screw cap 4 is provided with an opening 41, so that a detection rod of the temperature sensor can be conveniently inserted from the outer side, and the overall improvement adaptability of the device is improved.
In the above technical solution, a plurality of flow guiding holes 11 are arranged on the strip-shaped plate 13 at intervals to form a conducting state; two diversion holes 11 are arranged between every two fixing rings 132.
The working principle is as follows: in this kind of design, when personnel control temperature sensor 2's measuring rod 21 stretches out and draws back, when measuring head 22 at measuring rod 21 front end can just be located two solid fixed ring 132 between to by the rivers submergence that two water conservancy diversion holes 11 on the corresponding position flow out, make the effect that detects head 23 response this degree of depth rivers more evenly stable, and then guarantee the precision that temperature detected under this degree of depth.
In the above technical solution, an O-shaped damping ring 51 is sleeved on an inner ring of each fixing ring 132; the whole detection rod 21 of the temperature sensor 2 is movably inserted into a plurality of O-shaped damping rings 51, so as to form a clamping device.
The working principle is as follows: in this kind of design, every solid fixed ring 132 is inside all to set up an O type damping ring 51 effect and to guarantee that slender temperature sensor 2 detection pole 21 can not destroy because of the vibration in high-speed rivers, can keep the damping effect of flexible roll adjustment in-process when the depth of insertion of adjustment detection pole 21 simultaneously, has certain lubrication action again for the flexible adjustment of dragging of detection pole 21 is more smooth and easy.
In the above technical solution, the inner diameter of the upper end of the limiting hole 122 is small, and the inner diameter of the lower end is large, and the O-ring 52 is sleeved inside the lower end.
The working principle is as follows: in this design, by sleeving the O-ring 52 on the thicker portion of the limiting hole 122, the gap between the detection rod 21 of the temperature sensor 2 and the support plate 12 can be sealed in a lateral extrusion manner, so as to ensure that the high-pressure water flow inside the cooling water pipe 10 does not leak.
In the above technical solution, the type of the temperature sensor 2 is PT100 platinum resistance temperature sensor; the detection head 22 of the temperature sensor 2 is packaged by a copper shell.
The working principle is as follows: in the design, the reason for selecting the model is that the high-precision PT100 platinum resistance temperature sensor can reach the measurement precision of 0.2 ℃ and can meet the temperature measurement precision requirement within 10 ℃; the detection head 22 (namely the sensing end) of the temperature sensor 2 is packaged by a copper shell, so that the temperature response speed can be improved, the T90 time (the time required by the temperature sensor 2 to rise from the reading 0 to 90% of the temperature measured in the environment) is less than 11s, and the measurement requirement that the temperature measurement window period of the cooling water of the arc heater is less than 20s is met.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art. While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, particular embodiments, but rather to those skilled in the art, having the benefit of the teachings of the present invention, which is capable of numerous modifications and alternative forms, and will be readily apparent to those skilled in the art, and it is not intended to limit the invention to the details shown and described without departing from the general concepts defined by the appended claims and their equivalents.
Claims (10)
1. A fast response high pressure water temperature gauge comprising:
a mounting bracket detachably disposed in a cooling water pipe of the arc heater; a plurality of flow guide holes are formed in the mounting frame;
the detection rod of the temperature sensor is clamped on the mounting frame; gaps exist between the detection head at the front end of the detection rod and the plurality of flow guide holes.
2. A rapid response high pressure water temperature measurer as claimed in claim 1, further comprising an assembling pipe; the lower end of the assembling pipe is fixedly connected on a cooling water pipe of the electric arc heater in a conducting manner; the upper end of the mounting rack is provided with a supporting plate; the outer diameter of the support disc is larger than the inner diameter of the assembling pipe; the lower end of the mounting rack is a strip-shaped plate; the strip-shaped plate is matched with the inner cavity of the assembly pipe; after the strip-shaped plate is inserted into the inner cavity of the assembling pipe, the supporting disk is lapped and abutted against the port at the upper end of the assembling pipe, so that detachable connection is realized.
3. The rapid response high pressure water temperature measurer according to claim 2, wherein an annular stopper groove is provided on the upper end port of the assembly pipe; a limiting ring matched with the limiting groove is integrally arranged on the outer side of the supporting plate in a surrounding manner; the limiting ring is embedded into the limiting groove to realize stable connection.
4. The rapid response high pressure water temperature measurer according to claim 2, wherein the strip is provided with a plurality of grooves at equal intervals; a fixing ring is fixedly welded in each groove; the detection rod of the temperature sensor integrally and movably penetrates through the plurality of fixed rings, so that the clamping device is formed.
5. The rapid response high pressure water temperature measurer according to claim 2, wherein the support plate is provided with a limiting hole; the limiting holes and the fixing rings are coaxially arranged; and the detection rod of the temperature sensor penetrates through the limiting hole and then sequentially penetrates through the multiple fixing rings.
6. The rapid response high pressure water temperature measuring instrument according to claim 2, wherein the fitting pipe is provided at an upper end thereof with a male screw; the pressing screw cap is provided with an opening at the top; the lower part of the compression screw cap is provided with an internal thread matched with the external thread; the pressing screw cap is screwed on the upper end of the assembling pipe and presses the supporting plate through the edge part of the opening; the detection rod of the temperature sensor penetrates through the opening, the limiting hole and the fixing rings in a movable mode, and accordingly clamping is achieved.
7. The rapid response high pressure water temperature measurer according to claim 4, wherein a plurality of the flow guide holes are arranged on the strip-shaped plate at intervals to form a conduction state; two flow guide holes are formed between every two fixing rings.
8. The rapid response high pressure water temperature measurer according to claim 4, wherein an O-shaped damping ring is sleeved on an inner ring of each fixing ring; the detection rod of the temperature sensor integrally and movably penetrates into the O-shaped damping rings, so that the clamping is formed.
9. The rapid response high pressure water temperature measurer according to claim 5, wherein the upper end of the limit hole has a smaller inner diameter and a larger inner diameter, and an O-ring is sleeved inside the lower end.
10. The rapid response high pressure water temperature measurer according to claim 1, wherein the temperature sensor is a PT100 platinum resistance temperature sensor; and the detection head of the temperature sensor is packaged by a copper shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221416200.1U CN217403633U (en) | 2022-06-08 | 2022-06-08 | Quick response high pressure water temperature caliber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221416200.1U CN217403633U (en) | 2022-06-08 | 2022-06-08 | Quick response high pressure water temperature caliber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217403633U true CN217403633U (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221416200.1U Active CN217403633U (en) | 2022-06-08 | 2022-06-08 | Quick response high pressure water temperature caliber |
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| CN (1) | CN217403633U (en) |
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2022
- 2022-06-08 CN CN202221416200.1U patent/CN217403633U/en active Active
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