CN210894407U - Acceleration alarm system of new fuel container - Google Patents

Acceleration alarm system of new fuel container Download PDF

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Publication number
CN210894407U
CN210894407U CN202020017724.8U CN202020017724U CN210894407U CN 210894407 U CN210894407 U CN 210894407U CN 202020017724 U CN202020017724 U CN 202020017724U CN 210894407 U CN210894407 U CN 210894407U
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detection module
acceleration detection
acceleration
alarm
fuel container
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CN202020017724.8U
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Inventor
张宝田
马永辉
宋建国
卢本雄
曹勇
宋迎雷
林拓
谢佳彬
李春平
龚建伟
徐嘉旭
陈健菠
孟兵兵
�田�浩
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Fujian Ningde Nuclear Power Co Ltd
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Fujian Ningde Nuclear Power Co Ltd
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Abstract

The utility model provides a new fuel container's acceleration alarm system, include: a detection unit and an alarm unit; the detection unit comprises a first acceleration detection module, a second acceleration detection module, a third acceleration detection module and a fourth acceleration detection module, the first acceleration detection module and the second acceleration detection module are arranged at the upper end of the new fuel container, and the third acceleration detection module and the fourth acceleration detection module are arranged at the lower end of the new fuel container. Use the utility model provides a new fuel container's acceleration alarm system can in time report to the police when the great acceleration action takes place for nuclear fuel assembly to in the field nuclear fuel operating personnel is reminded.

Description

Acceleration alarm system of new fuel container
Technical Field
The utility model relates to a measure technical field, in particular to acceleration alarm system of new fuel container.
Background
With the development of science and technology, nuclear energy needs to be vigorously developed nowadays in order to meet the increasing energy demand of people. However, nuclear energy requires transportation of some nuclear fuel assemblies during development, requires proper fastening, cushioning, shock resistance, and fire resistance of the nuclear fuel assemblies during transportation, and must ensure critical safety. In order to enable the nuclear fuel assembly to be transported without being damaged, technicians produce a new fuel container dedicated to transporting the nuclear fuel assembly that has just been produced from the nuclear fuel plant.
The inventor researches and discovers that the nuclear fuel assembly in the new fuel container is easily subjected to longitudinal and transverse acceleration in the transportation, unpacking and packing processes of the new fuel container, however, technicians often cannot find the action condition of an accelerometer switch in the new fuel container in time so as to judge whether the assembly is damaged or not.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an acceleration alarm system of new fuel container is provided, can in time report to the police when the great acceleration action takes place for nuclear fuel assembly.
An acceleration warning system for a new fuel container comprising:
a detection unit and an alarm unit;
the detection unit comprises a first acceleration detection module, a second acceleration detection module, a third acceleration detection module and a fourth acceleration detection module, wherein the first acceleration detection module and the second acceleration detection module are arranged at the upper end of a new fuel container, and the third acceleration detection module and the fourth acceleration detection module are arranged at the lower end of the new fuel container;
the first end of the first acceleration detection module is connected with the first input end of the alarm unit, and the second end of the first acceleration detection module is connected with the second input end of the alarm unit;
the first end of the second acceleration detection module is connected with the first input end of the alarm unit, and the second end of the second acceleration detection module is connected with the second input end of the alarm unit;
the first end of the third acceleration detection module is connected with the first input end of the alarm unit, and the second end of the third acceleration detection module is connected with the second input end of the alarm unit;
the first end of the fourth acceleration detection module is connected with the first input end of the alarm unit, and the second end of the fourth acceleration detection module is connected with the second input end of the alarm unit.
Optionally, the first acceleration detection module includes a first accelerometer switch and a first resistor, and the first accelerometer switch is connected in parallel with the first resistor.
Optionally, the second acceleration detection module includes a second accelerometer switch and a second resistor, and the second accelerometer switch is connected in parallel with the second resistor.
Optionally, in the acceleration alarm system for a new fuel container, the third acceleration detection module includes a third accelerometer switch and a third resistor, and the third accelerometer switch is connected in parallel with the third resistor.
Optionally, in the acceleration alarm system for a new fuel container, the fourth acceleration detection module includes a fourth accelerometer switch and a fourth resistor, and the fourth accelerometer switch is connected in parallel with the fourth resistor.
Optionally, the alarm unit comprises an ohmmeter and an alarm;
the first end of the alarm is connected with a zero line of a power supply, the second end of the alarm is connected with the first end of an alarm contact switch in the ohmmeter, and the second end of the alarm contact switch is connected with a live line of the power supply;
the live wire end of the ohmmeter is connected with the live wire of the power supply, the zero line end of the ohmmeter is connected with the zero line of the power supply, and the grounding end of the ohmmeter is connected with the ground wire of the power supply.
Optionally, the alarm unit further comprises an alarm switch and a circuit breaker;
the first end of the alarm switch is connected with the second end of the alarm, the second end of the alarm switch is connected with the first end of the alarm contact switch, and the second end of the alarm contact switch is connected with the live wire of the power supply;
the first end of the circuit breaker is connected with the live wire of the power supply, and the second end of the circuit breaker is connected with the live wire end of the ohmmeter.
Compared with the prior art, the utility model discloses a following advantage:
the utility model provides a new fuel container's acceleration alarm system, include: a detection unit and an alarm unit; the detection unit comprises a first acceleration detection module, a second acceleration detection module, a third acceleration detection module and a fourth acceleration detection module, wherein the first acceleration detection module and the second acceleration detection module are arranged at the upper end of a new fuel container, and the third acceleration detection module and the fourth acceleration detection module are arranged at the lower end of the new fuel container; the first end of the first acceleration detection module is connected with the first input end of the alarm unit, and the second end of the first acceleration detection module is connected with the second input end of the alarm unit; the first end of the second acceleration detection module is connected with the first input end of the alarm unit, and the second end of the second acceleration detection module is connected with the second input end of the alarm unit; the first end of the third acceleration detection module is connected with the first input end of the alarm unit, and the second end of the third acceleration detection module is connected with the second input end of the alarm unit; the first end of the fourth acceleration detection module is connected with the first input end of the alarm unit, and the second end of the fourth acceleration detection module is connected with the second input end of the alarm unit. Use the utility model provides a new fuel container's acceleration alarm system can in time report to the police when the great acceleration action takes place for nuclear fuel assembly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an acceleration alarm system of a new fuel container provided by the present invention;
fig. 2 is a schematic structural diagram of an acceleration warning system of a new fuel container according to the present invention;
fig. 3 is a schematic diagram of the distribution of the accelerometer switches of the new fuel container provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides a new fuel container's acceleration alarm system can be applied to in each system of the new fuel container acceleration that receives of monitoring, the utility model provides a new fuel container's acceleration alarm system need not observe in real time through nuclear fuel operating personnel with the naked eye, when the action takes place for the accelerometer switch in new fuel container, can send the buzzer in order to remind at nuclear fuel operating personnel for nuclear fuel operating personnel can know nuclear fuel assembly's action condition in real time.
The embodiment of the utility model provides a new fuel container's acceleration alarm system, as shown in FIG. 1, specifically can include:
detection unit 101 and alarm unit 102.
It should be noted that the alarm unit 102 may include an ohmmeter and an alarm, a first end of the alarm is connected to a zero line N of the power supply, a second end of the alarm is connected to a first end of an alarm contact switch in the ohmmeter, and a second end of the alarm contact switch is connected to a live line L of the power supply. The range of the power supply can be AC220VAC +/-15%, the power supply can be a built-in power supply, can also be an external power supply, and can also be set as the power supply according to actual needs.
The live wire end of the ohmmeter is connected with the live wire L of the power supply, the zero line end of the ohmmeter is connected with the zero line N of the power supply, and the grounding end of the ohmmeter is connected with the ground wire PE of the power supply.
It should be further noted that the alarm unit 102 may further include an alarm switch and a circuit breaker, and referring to fig. 2, a first end of the alarm switch is connected to a second end of the alarm, a second end of the alarm switch is connected to a first end of the alarm contact switch, and a second end of the alarm contact switch is connected to the live line L of the power supply; the first end of the circuit breaker is connected with the live wire L of the power supply, and the second end of the circuit breaker is connected with the live wire end of the ohmmeter.
Alternatively, the alarm unit 102 may be built into the control box, and then connected to the detection unit 101 through signal connection cables with quick plugs, and then connected to a power panel of a power supply through a power supply cable, so as to supply power to each component in the control box.
The ohmmeter has the function of displaying the resistance value of the detection unit 101, the resistance measurement range is 0-1000 omega, and the precision is less than 0.5% FS; the alarm switch is used for interrupting the alarm function of the alarm through the alarm switch if the site nuclear fuel operator determines the specific position of the nuclear fuel assembly which acts when the alarm sounds, and the breaker is used for cutting off the circuit of the power supply when the detection of the acceleration borne by the nuclear fuel assembly in the new fuel container is finished.
The detection unit 101 includes a first acceleration detection module 201, a second acceleration detection module 202, a third acceleration detection module 203, and a fourth acceleration detection module 204, wherein the first acceleration detection module 201 and the second acceleration detection module 202 are disposed at an upper end of a new fuel container, and the third acceleration detection module 203 and the fourth acceleration detection module 204 are disposed at a lower end of the new fuel container.
Based on the example of fig. 1, referring to fig. 3, the first acceleration detection module 201 may be configured to detect a lateral acceleration and a longitudinal acceleration experienced by an upper end of a new fuel container, the second acceleration detection module 202 may be configured to detect a longitudinal acceleration experienced by an upper end of a new fuel container, the third acceleration detection module 203 may be configured to detect a longitudinal acceleration of a lower end of a new fuel container, and the fourth acceleration detection module 204 may be configured to detect a lateral acceleration and a longitudinal acceleration of a lower end of a new fuel container.
A first end of the first acceleration detection module 201 is connected to a first input end of the alarm unit 102, and a second end of the first acceleration detection module 201 is connected to a second input end of the alarm unit 102.
It should be noted that the first acceleration detection module 201 includes a first accelerometer switch S1 and a first resistor R1, and the first accelerometer switch S1 is connected in parallel to the first resistor R1, where a nominal value of the first accelerometer switch S1 may be 6g, and a resistance value of the first resistor R1 may be 1000 Ω.
It should be further noted that a first input end of the alarm unit 102 may be a resistance input end Ω, which is used to detect an output resistance of the first acceleration detection module 201, and a second input end of the alarm unit 102 may be a common ground end COM, which is used to ground the first end of the first acceleration detection module 201.
A first end of the second acceleration detection module 202 is connected to a first input end of the alarm unit 102, and a second end of the second acceleration detection module 202 is connected to a second input end of the alarm unit 102.
It should be noted that the second acceleration detection module 202 includes a second accelerometer switch S2 and a second resistor R2, and the second accelerometer switch S2 is connected in parallel with the second resistor R2, wherein a nominal value of the second accelerometer switch S2 may be 4g, and a resistance value of the second resistor R2 may be 1000 Ω.
A first end of the third acceleration detection module 203 is connected to a first input end of the alarm unit 102, and a second end of the third acceleration detection module 203 is connected to a second input end of the alarm unit 102.
The third acceleration detection module 203 includes a third accelerometer switch S3 and a third resistor R3, the third accelerometer switch S3 is connected to the third resistor R3 in parallel, wherein a nominal value of the third accelerometer switch S3 may be 4g, and a resistance of the third resistor R3 may be 1000 Ω.
A first end of the fourth acceleration detection module 204 is connected to a first input end of the alarm unit 102, and a second end of the fourth acceleration detection module 204 is connected to a second input end of the alarm unit 102.
Specifically, the fourth acceleration detection module 204 includes a fourth accelerometer switch S4 and a fourth resistor R4, the fourth accelerometer switch S4 is connected in parallel to the fourth resistor R4, wherein a nominal value of the fourth accelerometer switch S4 may be 6g, and a resistance value of the fourth resistor R4 may be 1000 Ω.
When any accelerometer switch in the detection unit 101 acts, the accelerometer switch which acts is closed, the resistors connected in parallel with the accelerometer switch are short-circuited, and at this time, the resistance value of the resistors connected in parallel with the accelerometer switch is 0 Ω. The ohmmeter in the alarm unit 102 obtains the current resistance value of the detection unit 101 through measurement, compares the current resistance value of the detection unit 101 with a preset threshold value, and judges whether the current resistance value of the detection unit 101 meets the preset threshold value, if the current resistance value of the detection unit 101 meets the preset threshold value, an alarm contact switch in the ohmmeter is closed to trigger the alarm to give out a buzzer to prompt a nuclear fuel operator.
Preferably, the alarm unit 102 may also alarm the loosening problem of the internal relevant connection of the accelerometer switch, so as to prompt the on-site nuclear fuel operator to repair the relevant line of the accelerometer switch in time.
The threshold value may be set as needed, for example: the resistance value of the normal resistor is 250 omega, the error precision is +/-1.25 omega, and the alarm unit 102 is triggered to alarm when the resistance of the detection unit 101 is larger than 300 omega or smaller than 200 omega.
The embodiment of the utility model provides an acceleration alarm system of new fuel container, including detecting element and alarm unit; the detection unit comprises a first acceleration detection module, a second acceleration detection module, a third acceleration detection module and a fourth acceleration detection module, wherein the first acceleration detection module and the second acceleration detection module are arranged at the upper end, and the third acceleration detection module and the fourth acceleration detection module are arranged at the lower end; the first end of the first acceleration detection module is connected with the first input end of the alarm unit, and the second end of the first acceleration detection module is connected with the second input end of the alarm unit; the first end of the second acceleration detection module is connected with the first input end of the alarm unit, and the second end of the second acceleration detection module is connected with the second input end of the alarm unit; the first end of the third acceleration detection module is connected with the first input end of the alarm unit, and the second end of the third acceleration detection module is connected with the second input end of the alarm unit; the first end of the fourth acceleration detection module is connected with the first input end of the alarm unit, and the second end of the fourth acceleration detection module is connected with the second input end of the alarm unit. Use the utility model provides a new fuel container's acceleration alarm system can in time report to the police when the great acceleration action takes place for nuclear fuel assembly.
In order to introduce the utility model in more detail, the present embodiment provides a specific application scenario of the acceleration alarm system of the new fuel container, which specifically includes:
the nominal value of the first accelerometer switch S1 is 6g, the nominal value of the second accelerometer switch S2 is 4g, the nominal value of the third accelerometer switch S3 is 4g, and the nominal value of the fourth accelerometer switch S4 is 6 g; the resistance of the first resistor R1 is 1000 Ω, the resistance of the second resistor R2 is 1000 Ω, the resistance of the third resistor R3 is 1000 Ω, and the resistance of the fourth resistor R4 is 1000 Ω. Technicians can set the resistance threshold of the detection unit 101 according to field requirements, the resistance value of the normal resistor is 250 Ω, the error precision is ± 1.25 Ω, and the alarm unit 102 is triggered to alarm when the resistance of the detection unit 101 is greater than 300 Ω or less than 200 Ω.
When any one of the accelerometer switches is activated during transportation of a new fuel assembly in a new fuel container, the resistance connected in parallel with the first accelerometer switch S1 is shorted, and then the resistances in the detection unit 101 are shorted, for example: when the first accelerometer switch S1 is actuated, the first accelerometer switch S1 is closed, so that the first resistor R1 connected in parallel with the first accelerometer switch S1 is short-circuited, that is, the first resistor R1 is 0 Ω, then the second resistor R2, the third resistor R3 and the fourth resistor R4 in the detection unit 101 are also short-circuited in succession, the ohmmeter in the alarm unit 102 obtains the resistance value of the current detection unit 101 to be about 0 Ω through measurement, by comparing the resistance value of the current detection unit 101 with a preset threshold value, it is known that the resistance value of the current detection unit 101 meets the preset threshold value, and then the alarm contact switch in the ohmmeter is closed, so that the alarm sends out a buzzer to prompt a nuclear fuel operator.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. An acceleration warning system for a new fuel container, comprising:
a detection unit and an alarm unit;
the detection unit comprises a first acceleration detection module, a second acceleration detection module, a third acceleration detection module and a fourth acceleration detection module, wherein the first acceleration detection module and the second acceleration detection module are arranged at the upper end of a new fuel container, and the third acceleration detection module and the fourth acceleration detection module are arranged at the lower end of the new fuel container;
the first end of the first acceleration detection module is connected with the first input end of the alarm unit, and the second end of the first acceleration detection module is connected with the second input end of the alarm unit;
the first end of the second acceleration detection module is connected with the first input end of the alarm unit, and the second end of the second acceleration detection module is connected with the second input end of the alarm unit;
the first end of the third acceleration detection module is connected with the first input end of the alarm unit, and the second end of the third acceleration detection module is connected with the second input end of the alarm unit;
the first end of the fourth acceleration detection module is connected with the first input end of the alarm unit, and the second end of the fourth acceleration detection module is connected with the second input end of the alarm unit.
2. The acceleration warning system of a new fuel container of claim 1 wherein the first acceleration detection module includes a first accelerometer switch and a first resistor, the first accelerometer switch connected in parallel with the first resistor.
3. The acceleration warning system of a new fuel container of claim 1, characterized in that the second acceleration detection module comprises a second accelerometer switch and a second resistor, the second accelerometer switch being connected in parallel with the second resistor.
4. The acceleration warning system of a new fuel container of claim 1, characterized in that the third acceleration detection module comprises a third accelerometer switch and a third resistor, the third accelerometer switch being connected in parallel with the third resistor.
5. The acceleration warning system of a new fuel container of claim 1, characterized in that the fourth acceleration detection module comprises a fourth accelerometer switch and a fourth resistor, the fourth accelerometer switch being connected in parallel with the fourth resistor.
6. The acceleration warning system of a new fuel container according to claim 1, characterized in that the warning unit comprises an ohmmeter and an alarm;
the first end of the alarm is connected with a zero line of a power supply, the second end of the alarm is connected with the first end of an alarm contact switch in the ohmmeter, and the second end of the alarm contact switch is connected with a live line of the power supply;
the live wire end of the ohmmeter is connected with the live wire of the power supply, the zero line end of the ohmmeter is connected with the zero line of the power supply, and the grounding end of the ohmmeter is connected with the ground wire of the power supply.
7. The acceleration warning system of a new fuel container as set forth in claim 6, wherein the warning unit further comprises a warning switch and a circuit breaker;
the first end of the alarm switch is connected with the second end of the alarm, the second end of the alarm switch is connected with the first end of the alarm contact switch, and the second end of the alarm contact switch is connected with the live wire of the power supply;
the first end of the circuit breaker is connected with the live wire of the power supply, and the second end of the circuit breaker is connected with the live wire end of the ohmmeter.
CN202020017724.8U 2020-01-06 2020-01-06 Acceleration alarm system of new fuel container Active CN210894407U (en)

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CN202020017724.8U CN210894407U (en) 2020-01-06 2020-01-06 Acceleration alarm system of new fuel container

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113514665A (en) * 2021-05-28 2021-10-19 成都工业职业技术学院 Acceleration monitoring system and method for spent fuel assembly transport container

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113514665A (en) * 2021-05-28 2021-10-19 成都工业职业技术学院 Acceleration monitoring system and method for spent fuel assembly transport container

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