CN216468036U - A portable integrated device for blasting valve cartridge case drive arrangement is experimental in labour - Google Patents
A portable integrated device for blasting valve cartridge case drive arrangement is experimental in labour Download PDFInfo
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- CN216468036U CN216468036U CN202121817875.2U CN202121817875U CN216468036U CN 216468036 U CN216468036 U CN 216468036U CN 202121817875 U CN202121817875 U CN 202121817875U CN 216468036 U CN216468036 U CN 216468036U
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Abstract
The utility model relates to the technical field of nuclear power explosion valve test equipment, and particularly discloses a movable integrated device for an in-service test of an explosion valve cartridge case driving device, which comprises an explosion force limiting barrel, a rotation limiting device and an integrated device bottom plate, wherein the explosion force limiting barrel is connected with the rotation limiting device through a connecting rod; the explosion force limiting barrel is arranged on the bottom plate of the integrated device, and the rotary limiting device is arranged on the explosion force limiting barrel; the rotary limiting device comprises a rotary shaft, a limiting handle, a limiting rotary seat, a limiting base, a supporting stand column and a bronze bushing, the supporting stand column is installed on the outer side of the explosive force limiting barrel, the limiting rotary seat is installed on the top end of the supporting stand column, and the limiting base is fixed on the limiting rotary seat. The device possesses the ability of removing the explosive force restriction bucket that 3 specifications are different simultaneously of transportation, and explosive force restriction bucket can be injectd in level and vertical direction through rotatory stop device, and the personnel's of being convenient for dismouting explosive force restriction bucket, place cartridge case drive arrangement, carry out the washing to explosive force restriction bucket after labour test and experiment.
Description
Technical Field
The utility model relates to the technical field of nuclear power explosion valve test equipment, in particular to a movable integrated device for an in-service test of an explosion valve cartridge drive device.
Background
The blast valve is introduced into a passive pressurized water reactor nuclear power plant for the first time and is arranged on a fourth-stage pipeline, a low-pressure safety injection pipeline and a containment vessel recycling pipeline of an automatic pressure relief system (ADS). The blast valve is key equipment for executing passive core cooling, has the advantages of simple and compact structure, zero leakage, good flow capacity, high reliability, convenient maintenance and the like, can meet the functional requirements of a core cooling loop on the valve in normal operation and accidents of a nuclear power plant, and improves the safety and the economy of a nuclear power unit.
The blast valve is one of key devices in a passive pressurized water reactor nuclear power plant and is very important for the safe operation of the power plant. The burst valve requires a certain number of cartridge drives to be spot checked for in-service testing during each plant refueling shut-down period. The in-service test contents are as follows: the cartridge case driving device is detached from the explosion valve, the output performance (pressure-time/P-t) of the cartridge case driving device is tested, the output performance of the cartridge case driving device is evaluated, and the reliability of the expected safety-related function of the explosion valve is ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a movable integrated device for an in-service test of a cartridge driving device of a blasting valve, which aims to solve the problems in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: a movable integrated device for an in-service test of a cartridge case driving device of a blasting valve comprises an explosive force limiting barrel, a rotary limiting device and an integrated device bottom plate; the left side and the right side of the bottom of the integrated device bottom plate are respectively provided with two front trundles and two rear trundles through mounting pieces, the explosive force limiting barrel is arranged on the integrated device bottom plate, and the rotation limiting device is arranged on the explosive force limiting barrel; the rotation limiting device comprises a rotating shaft, a limiting handle, a limiting rotating seat, a limiting base, a supporting upright post and a bronze bushing, the supporting upright post is installed on the outer side of the explosive force limiting barrel, the limiting rotating seat is installed at the top end of the supporting upright post, and the limiting base is fixed on the outer side wall of the limiting rotating seat;
mounting groove has been seted up on the top of spacing base, and mounting groove is used for installing rotatory fixture block, spacing handle and rotation axis, and spacing handle screw thread is installed on rotatory fixture block, and the rotation axis is connected with rotatory fixture block, and the one end that rotatory fixture block was kept away from to the rotation axis runs through behind the spacing roating seat and is connected with the lateral wall of explosive force limiting barrel, and the bronze bushing cover is established on the rotation axis, can reduce the wearing and tearing of rotation axis, avoids the clearance increase between the through-hole in rotation axis and the spacing roating seat.
As a preferable scheme of the present invention, the explosive force limiting barrel includes a first explosive force limiting barrel, a second explosive force limiting barrel and a third explosive force limiting barrel of three different specifications, the explosive force limiting barrels have a safety distance therebetween without mutual interference, and the explosive force limiting barrels are used for placing the cartridge driving device of the explosion valve to perform an in-service test.
As a preferable scheme of the present invention, each of the explosive force limiting barrels includes a barrel body, an upper cover plate, a lower cover plate, a pressure sensor interface, and a sealing ring.
As a preferable scheme of the utility model, the upper cover plate and the lower cover plate are respectively installed at the upper end and the lower end of the barrel body through bolts, a driving device installation cavity is formed between the barrel body and the upper cover plate, a pressure measurement cavity is formed between the barrel body and the lower cover plate, and a sealing ring for preventing gas leakage in the pressure measurement cavity is arranged between the lower cover plate and the barrel body.
As a preferred scheme of the utility model, a plurality of pressure sensor interfaces are distributed on the circumferential outer side wall of each explosive force limiting barrel in an annular array manner, the cartridge barrel driving device is placed in the driving device mounting cavity during a service test, the external pressure sensor is connected with the pressure sensor interfaces after the cartridge barrel driving device is detonated, and the pressure of the pressure measuring cavity is measured for a tester to analyze.
As a preferred scheme of the present invention, each of the explosive force limiting barrels is provided with two sets of rotation limiting devices, the two sets of rotation limiting devices are arranged in bilateral symmetry and are connected to the left and right side walls of the explosive force limiting barrel through rotation shafts on the two sets of rotation limiting devices, the center of each rotation shaft and the center of the corresponding explosive force limiting barrel are located at the same horizontal position, so that the function of manually turning over the explosive force limiting barrel can be realized, and the upper cover plate and the lower cover plate can be disassembled and assembled without disassembling and transporting.
As a preferable aspect of the present invention, the rotation shaft includes a large rotation end and a small rotation end, the large rotation end is connected to an outer sidewall of the explosive force limiting barrel, and the small rotation end is mounted on the limiting base.
As a preferred scheme of the present invention, the small rotating end is a square head structure, the rotation limiting device limits the corresponding explosive force limiting barrel in the vertical and horizontal directions through the cooperation of the square head terminal of the rotating shaft and the rotating fixture block, and the rotating fixture block is operated through the limiting handle, so as to realize the omnibearing observation and operation of the explosive force limiting barrel. The small rotating end penetrates through a through hole in the limiting rotating seat and is positioned and installed through a shaft step on the rotating shaft.
As a preferable scheme of the utility model, the left side and the right side of the rotating clamping block are arranged on the limiting base through the rotating shaft, the limiting base is connected with the limiting rotating seat through a bolt, and the limiting rotating seat is detachably connected with the supporting upright through a bolt.
As a preferred scheme of the utility model, the rear end of the bottom plate of the integrated device is provided with a handle, the height of the handle from the ground is about 630mm, and the height accords with the principle of human engineering, so that the integrated device is convenient for personnel to push and pull; install the toolbox on the integrated device bottom plate of handle bottom, can embed spare parts and specialized tool that installation and experiment required such as fastener, moment spanner, concentrate and place, the management of being convenient for.
As a preferred scheme of the utility model, the rear caster adopts a universal wheel form, is a movable caster, can realize 360-degree rotation, and the front caster adopts a directional wheel without a rotating mechanism; the front caster wheel and the rear caster wheel are matched for use, so that the integrated device is flexible to turn; the front caster wheel and the rear caster wheel are both provided with pedal brake structures, so that the integrated device is convenient to temporarily fix, and the phenomenon of sliding when the integrated device stops is prevented.
The front caster wheel, the rear caster wheel and the foot brake metal part are made of SUS304, and the rear caster wheel part is made of conductive MC nylon.
As a preferred scheme of the utility model, the front sides of the front caster and the rear caster are respectively provided with a fixed support leg, and the fixed support legs are fixedly connected with the mounting piece; rubber foot pad is equipped with to fixed stabilizer blade bottom, when explosion valve cartridge case drive arrangement carries out at the time of the labour test, for the sake of safety, makes 4 fixed stabilizer blades prop ground (fixed stabilizer blade can be cylinder drive formula mechanism, is vertical structure with ground), four truckle bottoms apart from ground 10mm this moment, integrated device is fixed in subaerially completely this moment, produces the skew when preventing to test.
Compared with the prior art, the utility model has the beneficial effects that:
1. the movable integrated device for the in-service test of the cartridge case driving device of the explosion valve has the capability of simultaneously moving and transporting 3 explosion force limiting barrels, has the in-service test function of the cartridge case driving device of the single explosion valve, is safe and reliable, and saves the test time.
2. According to the movable integrated device for the in-service test of the cartridge case driving device of the explosion valve, the explosive force limiting barrel can be limited in the horizontal direction and the vertical direction through the rotation limiting device, so that personnel can conveniently disassemble and assemble the explosive force limiting barrel, place the cartridge case driving device and clean the explosive force limiting barrel after the in-service test and the test, and the explosive force limiting barrel can be recycled, so that the energy is saved and the environment is protected.
3. The movable integrated device for the in-service test of the cartridge case driving device of the explosion valve can facilitate personnel to transport the explosion force limiting barrel, and effectively reduces the risk caused by the manual carrying of the explosion force limiting barrel by the personnel.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a specific structure of the rotation limiting device of the present invention;
fig. 3 is a sectional view of a second explosive force limiting barrel of the present invention.
In the figure: 1. a handle; 2. a first explosive force limiting barrel; 3. a second explosive force limiting barrel; 31. an upper cover plate; 32. a barrel body; 33. a pressure sensor interface; 34. a lower cover plate; 35. a seal ring; 36. a pressure measurement cavity; 37. a drive device mounting cavity; 4. a tool box; 5. a third explosive force limiting barrel; 6. a rotation limiting device; 61. a limiting rotary seat; 62. a bronze bushing; 63. a rotating shaft; 631. rotating the big end; 632. rotating the small end; 64. a limiting handle; 65. rotating the fixture block; 66. a limiting base; 7. supporting the upright post; 8. an integrated device backplane; 9. a rear caster; 10. a fixed leg; 11. a front caster.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-3, the present invention provides a technical solution: a movable integrated device for an in-service test of a cartridge case driving device of a blasting valve comprises an explosive force limiting barrel, a rotary limiting device 6 and an integrated device bottom plate 8; the left side and the right side of the bottom of the integration device bottom plate 8 are respectively provided with two front trundles 11 and two rear trundles 9 through mounting pieces, the explosive force limiting barrel is arranged on the integration device bottom plate 8, and the rotation limiting device 6 is arranged on the explosive force limiting barrel; the rotation limiting device 6 comprises a rotating shaft 63, a limiting handle 64, a limiting rotating seat 61, a limiting base 66, a supporting upright post 7 and a bronze bushing 62, wherein the supporting upright post 7 is arranged on the outer side of the explosive force limiting barrel, the limiting rotating seat 61 is arranged at the top end of the supporting upright post 7, and the limiting base 66 is fixed on the outer side wall of the limiting rotating seat 61;
mounting groove has been seted up on the top of spacing base 66, mounting groove is used for installing rotatory fixture block 65, spacing handle 64 and rotation axis 63, spacing handle 64 threaded mounting is on rotatory fixture block 65, rotation axis 63 is connected with rotatory fixture block 65, the one end that rotatory fixture block 65 was kept away from to rotation axis 63 runs through behind the spacing roating seat 61 and is connected with the lateral wall of explosive force restriction bucket, bronze bushing 62 cover is established on rotation axis 63, can reduce the wearing and tearing of rotation axis 63, avoid the clearance increase between the through-hole in rotation axis 63 and the spacing roating seat 61.
Further, the explosive force limiting barrel comprises a first explosive force limiting barrel 2, a second explosive force limiting barrel 3 and a third explosive force limiting barrel 5 of three different specifications, safety distances and mutual noninterference exist among the explosive force limiting barrels, and the explosive force limiting barrels are used for placing an explosive valve cartridge driving device to perform in-service tests.
Further, each explosive force limiting barrel comprises a barrel body 32, an upper cover plate 31, a lower cover plate 34, a pressure sensor interface 33 and a sealing ring 35.
Further, the upper cover plate 31 and the lower cover plate 34 are respectively installed at the upper end and the lower end of the barrel body 32 through bolts, a driving device installation cavity 37 is formed between the barrel body 32 and the upper cover plate 31, a pressure measurement cavity 36 is formed between the barrel body 32 and the lower cover plate 34, and a sealing ring 35 for preventing gas in the pressure measurement cavity 36 from leaking is arranged between the lower cover plate 34 and the barrel body 32.
Furthermore, 4 pressure sensor interfaces 33 are distributed on the circumferential outer side wall of each explosive force limiting barrel in an annular array mode, the cartridge barrel driving device is placed in the driving device installation cavity 37 during the service test, the external pressure sensor is connected with the pressure sensor interfaces 33 after detonation, and the pressure of the pressure measuring cavity 36 is measured and analyzed by testers.
Further, all be provided with two sets of rotatory stop device 6 on each explosive force limit barrel, two sets of rotatory stop device 6 bilateral symmetry set up to be connected with the lateral wall about the explosive force limit barrel through the rotation axis 63 on two sets of rotatory stop device 6, the center of rotation axis 63 is located same horizontal position with the center of the explosive force limit barrel that corresponds, can realize the function of manual upset explosive force limit barrel, need not to dismantle and carry and can realize upper cover plate 31, lower cover plate 34's dismouting operation.
Further, the rotation shaft 63 includes a rotation large end 631 and a rotation small end 632, the rotation large end 631 is connected to an outer sidewall of the explosive force limiting barrel, and the rotation small end 632 is installed on the limiting base 66.
Further, rotatory tip 632 is the square head structure, and rotatory stop device 6 is injectd the explosive force restriction bucket that corresponds in vertical and horizontal two directions through the square head terminal of rotation axis 63 and the cooperation of rotatory fixture block 65, and rotatory fixture block 65 passes through spacing handle 64 operation, realizes the omnidirectional observation and the operation of explosive force restriction bucket.
The small rotating end 632 passes through a through hole in the limit rotating base 61 and is positioned and installed through an axial step on the rotating shaft 63.
Further, the left side and the right side of the rotating fixture block 65 are installed on the limiting base 66 through the rotating shaft, the limiting base 66 is connected with the limiting rotating base 61 through bolts, and the limiting rotating base 61 is detachably connected with the supporting upright 7 through bolts.
Further, a handle 1 is arranged at the rear end of the integrated device bottom plate 8, the height of the handle 1 from the ground is about 630mm, and the height accords with the human engineering principle, so that personnel can conveniently push and pull the integrated device; install toolbox 4 on the integrated device bottom plate 8 of handle 1 bottom, can embed spare parts and specialized tool that installation and experiment required such as fastener, moment spanner, concentrate and place the management of being convenient for.
Furthermore, the rear caster wheel 9 is in a universal wheel form and is a movable caster wheel, 360-degree rotation can be realized, and the front caster wheel 11 is a directional wheel and is not provided with a rotating mechanism; the front caster wheel 11 and the rear caster wheel 9 are matched for use, so that the integrated device is flexible to turn; the front caster 11 and the rear caster 9 are both provided with a foot brake structure, so that the integrated device is convenient to temporarily fix, and the phenomenon of sliding when the integrated device stops is prevented.
The front caster 11, the rear caster 9 and the foot brake metal part are made of SUS304, and the roller part of the rear caster 9 is made of conductive MC nylon.
Further, the front sides of the front caster 11 and the rear caster 9 are respectively provided with a fixed support leg 10, and the fixed support legs 10 are fixedly connected with the mounting piece; rubber foot pad is equipped with to fixed stabilizer blade 10 bottom, when explosion valve cartridge case drive arrangement carries out at the time of the test of using a service, for the sake of safety, makes 4 fixed stabilizer blade 10 props ground (fixed stabilizer blade 10 can be cylinder drive formula mechanism, is vertical structure with ground), and four truckle bottoms are apart from ground 10mm this moment, and integrated device is fixed in subaerially completely this moment, produces the skew during the prevention test.
The working principle is as follows: the operation steps of the in-service test of the explosion valve cartridge case driving device by adopting the mobile integrated device are as follows: the rotation limiting means 6 is operated to fix the rotation small end 632 of the rotation shaft 23 by the rotation fixture block 25, and the first, second and third explosion force limiting tubs 2, 3 and 5 are limited in the vertical position. Then, the device is pushed to a test site, and 4 fixing support legs 10 are supported on the ground (the fixing support legs can be cylinder driving mechanisms and are in a vertical structure with the ground), so that the four caster wheels leave the ground.
The lower cover plate 34 of each explosive force limiting barrel is checked for fixing and a torque wrench is used to test whether the bolt has reached a specified tightening torque value. Checking whether the model of the pressure sensor, the model of the cartridge driving device and various parameters are correct and corresponding. And 4 pressure sensors are connected with corresponding pressure sensor interfaces 33, and whether the pressure sensors are loosened or not is checked after the pressure sensors are installed.
Opening the upper cover plate 31 of the corresponding explosion force limiting barrel, and placing the tested explosion valve cartridge driving device into the driving device installation cavity 37; installing an upper cover plate 31, tightening bolts by using a torque wrench, and after reaching a specified tightening torque value, withdrawing an operator to keep a safe distance from the equipment; the cartridge drive is fired and the pressure value of the pressure sensing chamber 36 measured by the pressure sensor is recorded.
And (3) waiting for at least two hours, opening the upper cover plate 31 after the first explosive force limiting barrel 2, the second explosive force limiting barrel 3 and the third explosive force limiting barrel 5 are cooled to normal temperature, taking out the cartridge driving device of the explosion valve, and taking down the pressure sensor. The rotation limiting device 6 is operated to manually turn the first explosion force limiting barrel 2, the second explosion force limiting barrel 3 and the third explosion force limiting barrel 5 so that the lower cover plate 34 faces upward.
The lower cover plate 34 is opened, the explosive force limiting barrel is cleaned, the lower cover plate 34 is installed after the surface is dried, and a new seal ring 35 is installed. The rotatory stop device 6 of operation, manual 180 of upset with first explosive force restriction bucket 2, second explosive force restriction bucket 3 and third explosive force restriction bucket 5, install upper cover plate 31, pack up fixed stabilizer blade 10, push away equipment to the storage place can.
It is worth noting that: the whole device realizes control to the device through the controller, and the controller is common equipment and belongs to the existing mature technology, and the electrical connection relation and the specific circuit structure of the controller are not repeated herein.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a portable integrated device that is used for blast valve cartridge case drive arrangement in service test which characterized in that: comprises an explosive force limiting barrel, a rotary limiting device (6) and an integrated device bottom plate (8); the left side and the right side of the bottom of the integrated device bottom plate (8) are respectively provided with two front trundles (11) and two rear trundles (9) through mounting pieces, the explosive force limiting barrel is arranged on the integrated device bottom plate (8), and the rotary limiting device (6) is arranged on the explosive force limiting barrel; the rotation limiting device (6) comprises a rotating shaft (63), a limiting handle (64), a limiting rotating seat (61), a limiting base (66), a supporting upright post (7) and a bronze bushing (62), the supporting upright post (7) is installed on the outer side of the explosive force limiting barrel, the limiting rotating seat (61) is installed at the top end of the supporting upright post (7), and the limiting base (66) is fixed on the outer side wall of the limiting rotating seat (61);
mounting groove has been seted up on the top of spacing base (66), and mounting groove is used for installing rotatory fixture block (65), spacing handle (64) and rotation axis (63), and spacing handle (64) screw thread is installed on rotatory fixture block (65), and rotation axis (63) are connected with rotatory fixture block (65), and the one end that rotatory fixture block (65) were kept away from in rotation axis (63) runs through behind spacing roating seat (61) and is connected with the lateral wall of explosive force restriction bucket, and bronze bushing (62) cover is established on rotation axis (63).
2. The portable integrated device for in-service testing of a cartridge drive of a burst valve of claim 1, wherein: the explosive force limiting barrel comprises a first explosive force limiting barrel (2), a second explosive force limiting barrel (3) and a third explosive force limiting barrel (5) which are different in three specifications.
3. The portable integrated device for in-service testing of a cartridge drive of a burst valve of claim 1, wherein: each explosive force limiting barrel comprises a barrel body (32), an upper cover plate (31), a lower cover plate (34), a pressure sensor interface (33) and a sealing ring (35).
4. The portable integrated device for in-service testing of a cartridge drive device of a burst valve of claim 3, wherein: the upper cover plate (31) and the lower cover plate (34) are respectively installed at the upper end and the lower end of the barrel body (32) through bolts, a driving device installation cavity (37) is formed between the barrel body (32) and the upper cover plate (31), a pressure measurement cavity (36) is formed between the barrel body (32) and the lower cover plate (34), and a sealing ring (35) used for preventing gas in the pressure measurement cavity (36) from leaking is arranged between the lower cover plate (34) and the barrel body (32).
5. The portable integrated device for in-service testing of a cartridge drive of a burst valve of claim 1, wherein: and 4 pressure sensor interfaces (33) are distributed on the circumferential outer side wall of each explosive force limiting barrel in an annular array mode.
6. The portable integrated device for in-service testing of a cartridge drive of a burst valve of claim 1, wherein: each all be provided with two sets of rotatory stop device (6) on the explosive force restriction bucket, two sets of rotatory stop device (6) bilateral symmetry set up to be connected with the lateral wall about the explosive force restriction bucket through rotation axis (63) on two sets of rotatory stop device (6), the center of rotation axis (63) and the center of the explosive force restriction bucket that corresponds are located same horizontal position.
7. The portable integrated device for in-service testing of a cartridge drive of a burst valve of claim 1, wherein: the rotating shaft (63) comprises a large rotating end (631) and a small rotating end (632), the large rotating end (631) is connected with the outer side wall of the explosive force limiting barrel, and the small rotating end (632) is mounted on the limiting base (66).
8. The portable integrated device for in-service testing of a cartridge drive unit of a burst valve of claim 7, wherein: rotatory tip (632) are square head structure, and rotatory stop device (6) are restricted the bucket with the explosive force who corresponds in vertical and horizontal two directions through the cooperation of the square head terminal of rotation axis (63) and rotatory fixture block (65).
9. The portable integrated device for in-service testing of a cartridge drive of a burst valve of claim 1, wherein: the left side and the right side of the rotating fixture block (65) are mounted on the limiting base (66) through rotating shafts, the limiting base (66) is connected with the limiting rotating seat (61) through bolts, and the limiting rotating seat (61) is connected with the supporting upright post (7) through bolts.
10. The portable integrated device for in-service testing of a cartridge drive of a burst valve of claim 1, wherein: handle (1) are installed to the rear end of integrated device bottom plate (8), install toolbox (4) on integrated device bottom plate (8) of handle (1) bottom, and fixed stabilizer blade (10), fixed stabilizer blade (10) and installed part fixed connection are all installed to the front side of preceding truckle (11) and back truckle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121817875.2U CN216468036U (en) | 2021-08-05 | 2021-08-05 | A portable integrated device for blasting valve cartridge case drive arrangement is experimental in labour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121817875.2U CN216468036U (en) | 2021-08-05 | 2021-08-05 | A portable integrated device for blasting valve cartridge case drive arrangement is experimental in labour |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216468036U true CN216468036U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121817875.2U Active CN216468036U (en) | 2021-08-05 | 2021-08-05 | A portable integrated device for blasting valve cartridge case drive arrangement is experimental in labour |
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| Country | Link |
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| CN (1) | CN216468036U (en) |
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2021
- 2021-08-05 CN CN202121817875.2U patent/CN216468036U/en active Active
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |