CN206488885U - A kind of pressure sensor cooling device - Google Patents
A kind of pressure sensor cooling device Download PDFInfo
- Publication number
- CN206488885U CN206488885U CN201720151082.9U CN201720151082U CN206488885U CN 206488885 U CN206488885 U CN 206488885U CN 201720151082 U CN201720151082 U CN 201720151082U CN 206488885 U CN206488885 U CN 206488885U
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- Prior art keywords
- cooling
- pressure
- chamber
- heat exchange
- pressure sensor
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Abstract
The utility model discloses a kind of pressure sensor cooling device, including the cooling heat exchange structure with hollow cavity, the hollow cavity of the cooling heat exchange structure is divided into inside and outside two cavitys, and outer chamber is spaced apart two parts of bottom connection, the cooling water inlet pipe being connected with a part of outer chamber is provided with the top of cooling heat exchange structure, and the cooling water outlet pipe being connected with another part outer chamber, sensor installation seat is provided with the top of inner chamber body, bottom is provided with pressure guiding pipe, the temperature sensor mounting seat for being provided through a part of outer chamber in the circumference for cooling down heat exchange structure and being connected with inner chamber body, and the nitrogen supply pipe being connected through another part outer chamber and with inner chamber body.The utility model can reduce the error of unstable state fluid working substance dynamic pressure measurement under existing hot environment.
Description
Technical field：
The utility model is related to a kind of pressure sensor cooling structure, more particularly to a kind of tests suitable for hot environment
Pressure sensor cooling device.
Background technology：
Pressure is the important state parameter for characterizing studied subject fluid mechanical characteristic, for unstable state flow process, work
The state parameters such as pressure, the temperature of matter are by time to time change, with dynamic change characterization.At present, dynamic pressure extensive use
In industrial production and scientific research field, such as the pressure in internal combustion engine, gas turbine, steam turbine, rocket engine is substantially
Dynamically, the gun pressure and explosion wave of firearms are dynamic pressures, hydraulic pressure in various industrial control equipments and dynamic power machine,
The pulse of pneumatic means is also dynamic pressure.Therefore the measurement of progress dynamic pressure is needed, it is special to study its hydrodynamics
Property.
Because the measurement of dynamic pressure usually requires that the faster response time, common dynamic pressure transducer mainly has pressure
Electric-type sensor and piezoresistive transducer.Commercially use silicon pressure sensor is mainly silicon diffused pressure drag type pressure sensing
Device, its technical maturity and excellent performance, but it is limited by P-N junction heatproof, and pressure measxurement can only be carried out below 120 DEG C, is exceeded
At 120 DEG C, plastic deformation and current leakage can occur at 600 DEG C, cause so that failing for the performance meeting severe exacerbation of sensor
Signal processing system and the imbalance of the extreme of circuit, far from meeting the field such as Aero-Space, generating, petrochemical industry, automobile high temperature
Pressure measxurement demand under environment.Further for the measurement of high-temp combustion fluid working substance, there is thermal shock problem in pressure sensor,
I.e. during fuel combustion, the heat for being delivered to pressure sensor primary element is sharply increased, so as to occur thermal shock, causes pressure
Force snesor deformation failure.
Conventional high-temperature environment liquid working medium dynamic pressure measurement mainly realizes that high temperature is tested working medium by longer pressure guiding pipe
Heat gradually scatters and disappears after pressure guiding pipe, Temperature of Working eventually drop to sensor stabilization run allowed maximum operation temperature with
Under.This method of testing is relatively specific for the dynamic pressure measurement of low frequency pulsating fluid working substance, but is pulsed for high frequency unstable state
Flow working medium, after longer pressure guiding pipe, between the pressure signal and fluid working substance true pressure signal measured by sensor
Amplitude-frequency and phase-frequency characteristic there will be larger difference, and the size and impulse length of tube of measurement error are proportional, and pressure guiding pipe is got over
Long measurement error is bigger.
Utility model content：
The purpose of this utility model is to reduce unstable state fluid working substance dynamic pressure measurement under existing hot environment
There is provided a kind of pressure sensor cooling device tested suitable for hot environment for error.The technical solution of the utility model is：
To reach above-mentioned purpose, the utility model adopts the following technical scheme that to realize：
A kind of pressure sensor cooling device, including the cooling heat exchange structure with hollow cavity, the cooling heat exchange
The hollow cavity of structure is divided into inside and outside two cavitys, and outer chamber is spaced apart two parts of bottom connection, cools down heat exchange knot
The cooling water inlet being connected with a part of outer chamber is provided with the top of structure to manage, and be connected with another part outer chamber
Sensor installation seat is provided with the top of cooling water outlet pipe, inner chamber body, bottom is provided with pressure guiding pipe, cooling heat exchange structure
The temperature sensor mounting seat that a part of outer chamber is provided through in circumference and is connected with inner chamber body, and through another portion
Exceptionally cavity and the nitrogen supply pipe being connected with inner chamber body.
The utility model, which is further improved, to be, the installation site of nitrogen supply pipe is higher than temperature sensor mounting seat
Installation site.
The utility model, which is further improved, to be, nitrogen stop valve is additionally provided with nitrogen supply pipe, cold for controlling
But the supply of nitrogen.
The utility model, which is further improved, to be, cooling device installation is additionally provided with the circumference for cooling down heat exchange structure
Seat.
The utility model, which is further improved, to be, cooling device mounting seat installs two kinds of forms using flange and screw thread.
The utility model, which is further improved, to be, pressure guiding pipe uses two kinds of stagnation pressure pressure guiding pipe and static pressure pressure guiding pipe, respectively
For measuring the stagnation pressure and static pressure of tested working medium.
The utility model, which is further improved, to be, sensor installation seat is connected through a screw thread the top for being arranged on inner chamber body
Portion, pressure guiding pipe is connected through a screw thread the bottom for being arranged on inner chamber body.
The utility model, which is further improved, to be, the cooling cavity outer wall of cooling heat exchange structure including concentric arrangement and
Cavity wall is cooled down, the cooling chamber cover plate at the top of cooling cavity outer wall and at the top of cooling cavity wall is arranged on, and be arranged on cooling chamber
Outer wall bottom and the cooling chamber bottom plate of cooling cavity wall bottom, wherein, cooling cavity wall and cooling chamber cover plate and cooling chamber bottom plate
Between form inner chamber body, form outer chamber between cooling cavity outer wall and cooling cavity wall and cooling chamber cover plate and cooling chamber bottom plate,
The outer chamber is two parts by cooling chamber baffle interval, and a part is left semicircle shape cooling flowing path, and another part is right semi-circle
Shape cooling flowing path, the left cooling that left and right semicircle cooling flowing path is connected by being formed between cooling chamber dividing plate and cooling chamber bottom plate
Stream hole and right cooling flowing path hole.
The utility model, which is further improved, to be, the cooling first-class even angle of cavity wall rounded internal surface is disposed with some
Strip heat exchange fin.
The utility model, which is further improved, to be, inner chamber body is circular cylindrical cavity, and outer chamber is annular cavity.
The utility model has following beneficial effect：
The utility model proposes a kind of pressure sensor cooling device, using preliminary filling cold conditions nitrogen, water cooling and fin
The method of heat exchange, can be effectively isolated the tested working medium of high temperature and be in contact with pressure sensor, exist while strengthening high temperature and being tested working medium
The heat measured in stream scatters and disappears, it is therefore prevented that pressure sensor measures end face by the high wind-warm syndrome of tested high temperature refrigerant, carries
The high acclimation to heat ability of sensor.
Further, the installation site of nitrogen supply pipe is higher than temperature sensor mounting seat, and this is mainly due to tested working medium
Upper end is flowed to from cooling device lower end, when temperature sensor, which experiences tested Temperature of Working, to transfinite, nitrogen cut-off is opened at once
Valve, cooling nitrogen is filled with sensor measurement end, can effectively prevent high temperature from being tested working medium feeler measuring cell.In addition it is set
The fluid working substance temperature point of meter can monitor the real time temperature of pressure sensor measurement end fluid working substance, facilitate user to grasp pressure
The real-time working environment of sensor, and can for pressure sensor damage fail the reason for analysis effective test data is provided.
Further, nitrogen supply pipe and nitrogen stop valve, previously-introduced before experimental test can be slightly above test environment pressure
The cold conditions nitrogen of power, the cold conditions nitrogen being pre-filled with cold conditions nitrogen stream, test pipeline is blocked during beginning to be tested to be had
Effect prevents high temperature refrigerant to the direct high wind-warm syndrome of sensor, improves the hot adaptability of pressure sensor.
Further, the thread connecting mode of pressure guiding pipe facilitates removing and installing for pressure guiding pipe, and cooling device stagnation pressure can be achieved
Or static pressure measurement function.
Further, cooling cavity wall is cooled down by the semicircle cooling flowing path in left and right, accelerates high temperature and be tested working medium
The heat for passing to cooling cavity wall scatters and disappears；High temperature is strengthened by strip heat exchange fin and is tested working medium and cooling cavity wall
Heat exchange efficiency.The above-mentioned cooling effectiveness for improving tested high temperature refrigerant, accelerates scattering and disappearing for tested working medium heat, shortens tested
The length of working medium impulse stream, improves the intrinsic dynamic characteristic of cooling device, reduces the pressure signal measured by sensor
Amplitude-frequency and phase frequency difference between tested working medium true pressure signal, reduce unstable state fluid working substance dynamic under hot environment
Pressure measurement errors.
Brief description of the drawings：
Fig. 1 is normal axomometric drawing of the utility model screw thread mounting means pressure sensor cooling device with stagnation pressure pressure guiding pipe；
Fig. 2 a are the top views of the pressure sensor cooling device shown in Fig. 1, and Fig. 2 b are Fig. 2 a A-A to sectional view；
Fig. 3 a are the front views of the pressure sensor cooling device shown in Fig. 1, and Fig. 3 b are Fig. 3 a A-A to sectional view, figure
3c is Fig. 3 a B-B direction sectional view；
Fig. 4 is normal axomometric drawing of the utility model flange mounting means pressure sensor cooling device with stagnation pressure pressure guiding pipe；
Fig. 5 is front view of the utility model pressure sensor cooling device with static pressure pressure guiding pipe.
In figure：1st, cooling water inlet is managed；2nd, sensor installation seat；3rd, cooling water outlet pipe；4th, temperature sensor mounting seat；
5th, cooling device mounting seat；6th, heat exchange structure is cooled down；7th, pressure guiding pipe；8th, nitrogen supply pipe；9th, nitrogen stop valve；10th, cool down
Chamber dividing plate；11st, exchange heat fin；12nd, cavity outer wall is cooled down；13rd, cavity wall is cooled down；14th, cooling chamber bottom plate；15th, cooling chamber cover plate；
16th, left semicircle shape cooling flowing path；17th, right semicircular cooling flowing path；18th, left cooling flowing path hole；19th, right cooling flowing path hole；20th, quilt
Survey working medium stream.
Embodiment：
It is further to the utility model with reference to the accompanying drawings and examples to describe in detail.
Fig. 1 to Fig. 5 is referred to, the utility model discloses a kind of pressure sensor cooling device, including cooling water inlet
Pipe 1, sensor installation seat 2, cooling water outlet pipe 3, temperature sensor mounting seat 4, cooling device mounting seat 5, cooling heat exchange
Structure 6, pressure guiding pipe 7 and nitrogen supply pipe 8.
Refer to Fig. 2 a to Fig. 3 c, the cooling heat exchange structure 6, by cooling cavity outer wall 12, cooling cavity wall 13, heat exchange
Fin 11, cooling chamber dividing plate 10, cooling chamber bottom plate 14, cooling chamber cover plate 15 are constituted.In circle cooling cavity outer wall 12 and cooling chamber
Wall 13 is in concentric arrangement, shape between cooling cavity outer wall 12, cooling cavity wall 13, cooling chamber bottom plate 14 and cooling chamber cover plate 15
Into the cooling annular space chamber dividing plate 10 that is cooled averagely be divided into left semicircle shape cooling flowing path 16 and right semicircular cooling flowing path
17, left and right semicircle cooling flowing path by the left cooling flowing path hole 18 that is formed between cooling chamber dividing plate 10 and cooling chamber bottom plate 14 and
Right cooling flowing path hole 19 is connected.Strip heat exchange fin 11 is angularly evenly arranged in the cooling rounded internal surface of cavity wall 13
On, to lift the cooling effectiveness of the high-temperature medium in the tested working medium stream 20 that cooling cavity wall 13 is formed.Cool down cavity wall
13 inner surface close to the side of cooling chamber bottom plate 14 is designed to female thread structure, to facilitate various forms of impulses such as stagnation pressure, static pressure
Pipe 7 is removed and installed.
The cooling water inlet pipe 1 is connected by cooling chamber cover plate 15 with left semicircle shape cooling flowing path 16, sensor peace
The bore design for filling seat 2 is screwed hole, and aperture and axle center are identical with cooling cavity wall 13, and it passes through cooling chamber cover plate 15 and cooling
The endoporus of cavity wall 13 is connected.Cooling water outlet pipe 3 and cooling water inlet pipe 1 are centrosymmetric arrangement, and pass through cooling chamber lid
Plate 15 is connected with right semicircular cooling flowing path 17.The bore design of temperature sensor mounting seat 4 has screw thread, to facilitate temperature to pass
The installation of sensor, it is through cooling cavity outer wall 12, left semicircle shape cooling flowing path 16 and cools down cavity wall 13 and tested working medium stream
Road 20 is connected.For convenience of the installation of the pressure sensor cooling device, cooling device is designed with cooling cavity outer wall 12
Mounting seat 5, it has flange and screw thread to install two kinds of forms.Pressure guiding pipe 7 is by cooling down the internal face screw thread of cavity wall 13 and tested work
Mass flow road 20 is connected, and it is designed with two kinds of stagnation pressure pressure guiding pipe and static pressure pressure guiding pipe, is respectively used for measuring the stagnation pressure of tested working medium
And static pressure.Nitrogen supply pipe 8 is through cooling cavity outer wall 12, right semicircular cooling flowing path 17 and cooling cavity wall 13 and tested work
Mass flow road 20 is connected, and its position, which is higher than in temperature sensor mounting seat 4, nitrogen supply pipe 8, is designed with nitrogen stop valve
9, the supply for controlling cooling nitrogen.
Embodiment：
The long 80mm of heat exchange structure 6 is cooled down in the present embodiment, cooling cavity outer wall 12 is in concentric cloth with cooling cavity wall 13
Put, cool down cavity outer wall 12 external diameter 25mm, internal diameter 21mm, wall thickness 2mm, cool down cavity wall 13 external diameter 9mm, internal diameter 5mm, wall thickness 2mm,
The standard female of long 15mm M6 × 0.5, cooling are designed with cooling inner surface of the cavity wall 13 away from the end of cooling chamber bottom plate 14
Bottom of chamber plate 14 and the wall thickness 2mm of cooling chamber cover plate 15；Cooling chamber dividing plate 10 long 70mm, thick 2mm, with cooling cavity outer wall 12 and cooling chamber
Inwall 13 is connected, and will cool down cavity outer wall 12 and cool down the annular space formed between cavity wall 13 and be divided into left semicircle shape and cool down and flow
Road 16 and right semicircular cooling flowing path 17；8 heat exchange fins 11 are angularly evenly arranged in the inner surface of cooling cavity wall 13, change
The hot thickness of fin 11 0.5mm, wide 1mm, long 65mm；Cooling water inlet pipe 1 external diameter 5mm, internal diameter 3mm, the external diameter of cooling water outlet pipe 3
5mm, internal diameter 3mm, the two arrangement that is centrosymmetric, and by cooling chamber cover plate 15 respectively with left semicircle shape cooling flowing path 16 and the right side
Semicircle cooling flowing path 17 is connected；The external diameter 9mm of sensor installation seat 2, high 12mm, Center is the through hole mark of M5 × 0.5
Quasi- internal thread, it is in concentric arrangement with cooling cavity wall 13, is connected by cooling chamber cover plate 15 with tested working medium stream 20；
Nitrogen supply pipe 8 external diameter 5mm, internal diameter 3mm, its axle center are 13mm from the distance between cooling chamber cover plate 15, nitrogen supply pipe 8 according to
It is secondary to be connected through cooling cavity outer wall 12 and cooling cavity wall 13 with tested working medium stream 20, designed simultaneously in nitrogen supply pipe 8
There is nitrogen stop valve 9, to control the supply of cold conditions nitrogen；The external diameter 10mm of temperature sensor mounting seat 4, internal diameter 6mm, construction section is set
In respect of the standard female of long 15mm M6 × 1.0, its axle center is 20mm, TEMP from the distance between cooling chamber cover plate 15
Device mounting seat 4 sequentially passes through cooling cavity outer wall 12 and cooling cavity wall 13 is connected with tested working medium stream 20；The external diameter of pressure guiding pipe 7
6mm, internal diameter 3mm, the upper end of pressure guiding pipe 7 are designed with the standard external of long 15mm M6 × 0.5, by screw thread by pressure guiding pipe 7 and cold
But heat exchange structure 6 is connected；Cooling device mounting seat 5 is designed with the standard external of long 15mm M30 × 1.5, cooling dress
It is 35mm that the upper surface of the hex nut of mounting seat 5, which is put, from the distance between cooling chamber cover plate 15.
The specific works mode that the present embodiment is applied to the pressure sensor cooling device that hot environment is tested is as follows：
Cooling water enters through cooling water inlet pipe 1 when being worked suitable for the pressure sensor cooling device that hot environment is tested
Left semicircle shape cooling flowing path 16, the then left cooling flowing path hole 18 by being formed between cooling chamber dividing plate 10 and cooling chamber bottom plate 14
And right cooling flowing path hole 19 enters right semicircular cooling flowing path 17, is most flowed out afterwards through cooling water outlet pipe.It is straight that high temperature is tested working medium
Connect and be in contact with cooling cavity wall 13 and heat exchange fin 11, the heat that high temperature is tested working medium is mainly final by heat convection form
Cooling cavity wall 13 is passed to, heat exchange fin 11 improves the transmission efficiency of tested working medium heat because adding heat exchange area；
The heat for passing to cooling cavity wall 13 is mainly scattered and disappeared by cooling water with cooling cavity wall 13 outside wall surface heat convection, remaining
A part of heat then by cooling chamber dividing plate 10 by heat-conducting mode pass to cooling cavity outer wall 12, then by cooling cavity outer wall 12 with
Cooled external air and internal cooling water heat convection scatter and disappear.
Before pressure sensor is formally measured, nitrogen stop valve 9 is opened, and pressure is slightly above the cold conditions nitrogen warp of tested working medium
Nitrogen supply pipe 8 flows into tested working medium stream 20, is discharged after being full of through pressure guiding pipe 7, nitrogen when pressure sensor is formally measured
Stop valve 9 is closed.Cold conditions nitrogen is pre-charged with tested working medium stream 20, pressure sensor is tested working medium with high temperature and is separated by
Open, it is to avoid pressure sensor is directly tested working medium with high temperature and is in contact, and has preferable protective effect to sensor.Pressure is passed
When sensor starts measurement, the cold conditions nitrogen full of stagnation in tested working medium stream becomes a kind of good pressure fluctuation transmission and is situated between
Matter, and under the efficient cooling of cooling water, long-time is maintained into low-temperature condition, is conducive under pressure sensor hot environment
Long-term measurement, improves the hot adaptability of pressure sensor.
Claims (10)
1. a kind of pressure sensor cooling device, it is characterised in that including the cooling heat exchange structure (6) with hollow cavity,
The hollow cavity of the cooling heat exchange structure (6) is divided into inside and outside two cavitys, and outer chamber is spaced apart two of bottom connection
Point, the cooling water inlet pipe (1) being connected with a part of outer chamber, Yi Jiyu are provided with the top of cooling heat exchange structure (6)
Sensor installation seat (2), bottom are provided with the top of the cooling water outlet pipe (3) that another part outer chamber is connected, inner chamber body
It is provided with and is provided through a part of outer chamber in pressure guiding pipe (7), the circumference of cooling heat exchange structure (6) and is connected with inner chamber body
Logical temperature sensor mounting seat (4), and the nitrogen supply pipe being connected through another part outer chamber and with inner chamber body
(8)。
2. a kind of pressure sensor cooling device according to claim 1, it is characterised in that the peace of nitrogen supply pipe (8)
Holding position is higher than the installation site of temperature sensor mounting seat (4).
3. a kind of pressure sensor cooling device according to claim 1, it is characterised in that in nitrogen supply pipe (8) also
Nitrogen stop valve (9) is provided with, the supply for controlling cooling nitrogen.
4. a kind of pressure sensor cooling device according to claim 1, it is characterised in that cooling heat exchange structure (6)
Circumference on be additionally provided with cooling device mounting seat (5).
5. a kind of pressure sensor cooling device according to claim 4, it is characterised in that cooling device mounting seat (5)
Two kinds of forms are installed using flange and screw thread.
6. a kind of pressure sensor cooling device according to claim 1, it is characterised in that pressure guiding pipe (7) uses stagnation pressure
Two kinds of pressure guiding pipe and static pressure pressure guiding pipe, are respectively used for measuring the stagnation pressure and static pressure of tested working medium.
7. a kind of pressure sensor cooling device according to claim 1, it is characterised in that sensor installation seat (2) leads to
The top that threaded connection is arranged on inner chamber body is crossed, pressure guiding pipe (7) is connected through a screw thread the bottom for being arranged on inner chamber body.
8. a kind of pressure sensor cooling device according to claim 1, it is characterised in that cooling heat exchange structure (6)
Cooling cavity outer wall (12) and cooling cavity wall (13) including concentric arrangement, are arranged at the top of cooling cavity outer wall (12) and cooling
Cooling chamber cover plate (15) at the top of cavity wall (13), and it is arranged on cooling cavity outer wall (12) bottom and cooling cavity wall (13) bottom
The cooling chamber bottom plate (14) in portion, wherein, shape between cooling cavity wall (13) and cooling chamber cover plate (15) and cooling chamber bottom plate (14)
Into inner chamber body, shape between cooling cavity outer wall (12) and cooling cavity wall (13) and cooling chamber cover plate (15) and cooling chamber bottom plate (14)
Into outer chamber, the outer chamber is by cooling chamber dividing plate (10) at intervals of two parts, and a part is left semicircle shape cooling flowing path (16),
Another part is right semicircular cooling flowing path (17), and left and right semicircle cooling flowing path passes through cooling chamber dividing plate (10) and cooling chamber bottom
The left cooling flowing path hole (18) being connected and right cooling flowing path hole (19) are formed between plate (14).
9. a kind of pressure sensor cooling device according to claim 8, it is characterised in that cooling cavity wall (13) is circular
The first-class even angle of inner surface is disposed with some strip heat exchange fins (11).
10. a kind of pressure sensor cooling device according to claim 8, it is characterised in that inner chamber body is cylindrical cavity
Body, outer chamber is annular cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151082.9U CN206488885U (en) | 2017-02-20 | 2017-02-20 | A kind of pressure sensor cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151082.9U CN206488885U (en) | 2017-02-20 | 2017-02-20 | A kind of pressure sensor cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206488885U true CN206488885U (en) | 2017-09-12 |
Family
ID=59764628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720151082.9U Expired - Fee Related CN206488885U (en) | 2017-02-20 | 2017-02-20 | A kind of pressure sensor cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206488885U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057254A (en) * | 2019-05-07 | 2019-07-26 | 中北大学 | A kind of device and method for testing process for monitoring closed container fast cook off test |
| CN110081782A (en) * | 2019-05-07 | 2019-08-02 | 中北大学 | It is a kind of for monitoring the device and method of slow cook-off test temperature pressure |
| CN110425785A (en) * | 2019-08-27 | 2019-11-08 | 神华（福建）能源有限责任公司 | A kind of spiral cooler and sensor cooling device |
| CN115219100A (en) * | 2022-09-21 | 2022-10-21 | 中国空气动力研究与发展中心空天技术研究所 | Total pressure measuring structure of combustion heater |
-
2017
- 2017-02-20 CN CN201720151082.9U patent/CN206488885U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057254A (en) * | 2019-05-07 | 2019-07-26 | 中北大学 | A kind of device and method for testing process for monitoring closed container fast cook off test |
| CN110081782A (en) * | 2019-05-07 | 2019-08-02 | 中北大学 | It is a kind of for monitoring the device and method of slow cook-off test temperature pressure |
| CN110425785A (en) * | 2019-08-27 | 2019-11-08 | 神华（福建）能源有限责任公司 | A kind of spiral cooler and sensor cooling device |
| CN115219100A (en) * | 2022-09-21 | 2022-10-21 | 中国空气动力研究与发展中心空天技术研究所 | Total pressure measuring structure of combustion heater |
| CN115219100B (en) * | 2022-09-21 | 2022-11-25 | 中国空气动力研究与发展中心空天技术研究所 | Total pressure measuring structure of combustion heater |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 Termination date: 20190220 |