CN212483720U

CN212483720U - Automatic test bed for electrical test of electrical equipment

Info

Publication number: CN212483720U
Application number: CN202021044404.8U
Authority: CN
Inventors: 宋超
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-02-05
Anticipated expiration: 2030-06-09

Abstract

The utility model discloses an electrical equipment electrical test's automatic test bench, including electrical test bench and install the power cord in electrical test bench, the power cord is connected with electromagnetic relay, electromagnetic relay facial make-up is equipped with the singlechip, electrical test bench facial make-up is equipped with temperature sensor, the alarm, flame detector, the case of putting out a fire has been installed to electrical test bench upper end, the built-in liquid storage pot that is equipped with of case of putting out a fire, the centrifugal pump has been installed to liquid storage pot one side, auxiliary relay has been installed to centrifugal pump one end, temperature sensor, the singlechip input is connected to flame detector output, electromagnetic relay is connected to the singlechip output, the alarm, the auxiliary. Through the detection effect of the flame detector arranged on the electrical test bed, when a fire disaster occurs, the single chip microcomputer enables the centrifugal pump to be started through the intermediate relay, and the centrifugal pump sprays fire extinguishing liquid in the liquid storage tank through the spray head to perform fire extinguishing operation.

Description

Automatic test bed for electrical test of electrical equipment

Technical Field

The utility model belongs to the technical field of it is electric, concretely relates to electrical equipment electrical test's automatic test bench.

Background

In the electrical test, before an electrical system or an electrical device is put into use, in order to determine whether the electrical system or the electrical device has quality problems in terms of installation or manufacture and determine whether the newly installed or operating electrical device can be put into operation normally, insulation performance, electrical characteristics, mechanical properties, and the like of each electrical device in the electrical system are tested and verified item by item according to relevant regulations in standards, regulations, and specifications.

The electrical test bed is an operation platform used for electrical related tests, in the process of electrical tests, because test requirements generally seek the stable condition of electrical equipment under the maximum operation load, the value of current circulating inside the electrical test bed is generally large in the test process, particularly the heat generation at a lead interface end is obvious, in order to test the use limit or the maximum load continuous operation time of the electrical equipment, the contact work of the electrical equipment generally needs to be ensured, a large amount of heat can be accumulated inside the test bed under the condition that the electrical equipment continuously works, although a heat dissipation system is arranged inside the test bed, mechanical faults and the like can be inevitably generated in long-term use, so that the heat inside the electrical test bed is difficult to dissipate, and in daily use, if an operator operates improperly, short circuit and sparks are easily generated, so that the test bed can generate spontaneous combustion phenomenon, for an electrical test bed, after ignition, electrical equipment may be electrified, if an electric shock accident may be caused without attention, some electrical equipment, such as a power transformer, a multi-oil circuit breaker and the like, are filled with a large amount of oil, oil injection or explosion accidents may occur, fire spread may be caused, and a fire range is enlarged, so that a power supply needs to be turned off in the first time when a fire occurs.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electrical equipment electrical test's automatic test bench to solve prior art and have the problem of certain potential safety hazard at the in-process of putting out a fire.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electrical equipment electrical test's automatic test bench, includes electrical test bench and installs the power cord in electrical test bench, the power cord is connected with electromagnetic relay, electromagnetic relay facial make-up is equipped with the singlechip, electrical test bench facial make-up is equipped with temperature sensor, alarm, flame detector, the case of putting out a fire has been installed to electrical test bench upper end, the built-in liquid storage pot that is equipped with of case of putting out a fire, the centrifugal pump has been installed to liquid storage pot one side, auxiliary relay has been installed to centrifugal pump one end, single chip microcomputer input is connected to temperature sensor, flame detector output, electromagnetic relay, alarm, auxiliary relay input are connected to the single chip microcomputer output.

Preferably, a driving circuit is connected between the electromagnetic relay and the single chip microcomputer, and the input end of the single chip microcomputer is connected with an external power supply.

Preferably, the liquid storage pot bottom is equipped with the drain pipe, the centrifugal pump has been installed to drain pipe one end, external power supply is connected to the centrifugal pump input, the honeycomb duct has been installed to the centrifugal pump other end, fire extinguishing chamber one side is equipped with first perforation, the honeycomb duct runs through first perforation, the electrical test bench upper end is equipped with the second perforation, the honeycomb duct stretches out the end and inserts and locate the second perforation.

Preferably, the end of the draft tube extending out of the second perforation is provided with a fire extinguishing tube, and the lower end of the fire extinguishing tube is uniformly provided with spray heads.

Preferably, the upper end of the liquid storage tank is provided with a liquid inlet, and the upper end of the liquid inlet is provided with a flange cover.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides an electrical equipment electrical test's automatic test bench, through having installed electromagnetic relay at electrical test bench power end, drive circuit is connected to the electromagnetic relay input, the singlechip output is connected to the drive circuit other end, when flame detector detected flame, flame detector passes through the output with the signal and transmits for the singlechip input, the singlechip passes through the output with the signal processing and transmits for drive circuit, drive circuit amplifies the transmission of control signal and gives the electromagnetic relay input, close the power that electrical test bench is connected rapidly behind the electromagnetic relay received signal, avoid the danger that the artificial manual power supply that closes faces, the potential safety hazard of the in-process of putting out a fire has been eliminated.

The utility model provides an electrical equipment electrical test's automatic test bench, through the detection effect of setting up the flame detector on electrical test bench, when the conflagration breaing out, the flame detector passes through the output transmission with detected signal and gives the singlechip input, the singlechip passes through the output transmission with processed signal and gives the auxiliary relay input, auxiliary relay passes through the centrifugal pump start of processed signal control connection external power supply, the operation of putting out a fire is carried out through the shower nozzle blowout in the electrical test bench with the liquid of putting out a fire in the liquid storage tank to the centrifugal pump, whole operation of putting out a fire realizes automaticly, operating personnel's life safety has been guaranteed.

Drawings

Fig. 1 is an isometric view of the present invention;

FIG. 2 is a front partially cut-away schematic view of FIG. 1;

fig. 3 is an enlarged schematic view of a portion of fig. 2.

In the figure: 1 electric test bed, 2 power lines, 3 electromagnetic relays, 4 singlechips, 5 temperature sensors, 6 alarms, 7 flame detectors, 8 fire extinguishing boxes, 9 liquid storage tanks, 10 centrifugal pumps, 11 intermediate relays, 12 liquid outlet pipes, 13 flow guide pipes, 14 first through holes, 15 second through holes, 16 fire extinguishing pipes, 17 spray heads, 18 liquid inlet holes and 19 flange covers.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1, an automatic test bed for electrical tests of electrical equipment comprises an electrical test bed 1 and a power line 2 connected in the electrical test bed 1 in a buckling manner, wherein the input end of the power line 2 is connected with the output end of an electromagnetic relay 3, the model of the electromagnetic relay 3 is JQX-62F, the input end of the electromagnetic relay 3 is connected with a single chip microcomputer 4, the model of the single chip microcomputer 4 is 80C51, a driving circuit is connected between the electromagnetic relay 3 and the single chip microcomputer 4, the driving circuit can amplify a control signal sent by the single chip microcomputer 4 so as to control the electromagnetic relay 3, the input end of the single chip microcomputer 4 is connected with an external power supply, a temperature sensor 5, an alarm 6 and a flame detector 7 are welded on the electrical test bed 1, wherein the models of the temperature sensor 5, the alarm 6 and the flame detector 7 are RTD, nc2101-69 mrysw and a705IR2, temperature sensor 5 transmits the signal for 4 input ends of singlechip through the output, and singlechip 4 transmits the signal of handling for alarm 6 through the output, and alarm 6 reports to the police after receiving the signal of handling, warns operating personnel electrical test platform 1 temperature rise unusually, inspects the potential safety hazard in advance.

Referring to fig. 1, 2 and 3, a fire extinguishing box 8 is welded at the upper end of an electrical test bench 1, a liquid storage tank 9 is welded in the fire extinguishing box 8, carbon tetrachloride fire extinguishing liquid is stored in the liquid storage tank 9, a centrifugal pump 10 is connected to a flange on the right side of the liquid storage tank 9, the centrifugal pump 10 is of an ISW80-160 model, a liquid outlet pipe 12 is arranged at the bottom end of the liquid storage tank 9, the centrifugal pump 10 is connected to a flange on the right end of the liquid outlet pipe 12, the input end of the centrifugal pump 10 is connected to an external power supply, a flow guide pipe 13 is connected to a flange on the right end of the centrifugal pump 10, a first through hole 14 is arranged on the right side of the fire extinguishing box 8, the flow guide pipe 13 is in interference fit with the first through hole 14, a second through hole 15 is arranged at the upper end of the electrical test bench 1, the extending end of the flow guide pipe 13, the model of the spray head 17 is DN15, the upper end of the liquid storage tank 9 is provided with a liquid inlet 18, the upper end of the liquid inlet 18 is connected with a flange cover 19 through a flange, the input end of the centrifugal pump 10 is connected with an intermediate relay 11, the model of the intermediate relay 11 is HH52P AC220V, the output ends of the temperature sensor 5 and the flame detector 7 are connected with the input end of the single chip microcomputer 4, and the output end of the single chip microcomputer 4 is connected with the input ends of the electromagnetic relay.

In the daily use of the electric test bed 1, a temperature sensor 5 welded at the upper end of the electric test bed 1 transmits a real-time monitored temperature signal to the input end of a single chip microcomputer 4 through an output end, the single chip microcomputer 4 judges the temperature signal, when a temperature signal change value or a temperature value exceeds a set value, the single chip microcomputer 4 transmits a processing signal to the input end of an alarm 6 through the output end at the moment, the alarm 6 immediately gives an alarm to warn an operator that the electric test bed 1 is abnormal in temperature and needs to be checked for reasons and needs to be immediately cooled, when spontaneous combustion occurs inside the electric test bed 1, a flame detector 7 positioned on the electric test bed 1 has the characteristic of being sensitive to flame through far infrared rays, the flame detector 7 transmits a monitoring signal to the input end of the single chip microcomputer 4 through the output end, and the single chip microcomputer 4 judges whether, when the values of the flame detector 7 and the temperature sensor 5 are abnormal, the singlechip 4 respectively transmits processing signals to a driving circuit at the end of the electromagnetic relay 3, an alarm 6 and an intermediate relay 11 at the end of the centrifugal pump 10 through output ends, the driving circuit controls the electromagnetic relay 3 to be switched from a closed state to an open state, the effect of instantly cutting off a power supply is achieved, the alarm 6 gives an alarm to warn an operator, the intermediate relay 11 is connected with an external power supply of the centrifugal pump 10 and is not influenced by the power supply of the electrical test bed 1, the intermediate relay 11 sends out an execution signal through the singlechip 4 to control the starting of the centrifugal pump 10, the centrifugal pump 10 pumps carbon tetrachloride liquid in the liquid storage tank 9, the fire extinguishing pipe is sprayed out by the spray heads 17 uniformly arranged at the lower end of the fire extinguishing pipe 16, so that the function of instantly starting a fire extinguishing mechanism for the electrical test stand 1 is achieved, and the life safety of operators is guaranteed.

Claims

1. The utility model provides an electrical equipment electrical test's automatic test bench, includes electrical test bench (1) and installs power cord (2) in electrical test bench (1), its characterized in that: power cord (2) are connected with electromagnetic relay (3), electromagnetic relay (3) facial make-up is equipped with singlechip (4), electrical test platform (1) facial make-up is equipped with temperature sensor (5), alarm (6), flame detector (7), fire extinguishing box (8) have been installed to electrical test platform (1) upper end, fire extinguishing box (8) built-in liquid storage pot (9) that is equipped with, centrifugal pump (10) have been installed to liquid storage pot (9) one side, auxiliary relay (11) have been installed to centrifugal pump (10) one end, singlechip (4) input is connected to temperature sensor (5), flame detector (7) output, electromagnetic relay (3), alarm (6), auxiliary relay (11) input are connected to singlechip (4) output.

2. An automated test stand for electrical testing of electrical equipment according to claim 1, characterized in that: a driving circuit is connected between the electromagnetic relay (3) and the single chip microcomputer (4), and the input end of the single chip microcomputer (4) is connected with an external power supply.

3. An automated test stand for electrical testing of electrical equipment according to claim 1, characterized in that: liquid storage pot (9) bottom is equipped with drain pipe (12), centrifugal pump (10) have been installed to drain pipe (12) one end, external power supply is connected to centrifugal pump (10) input, honeycomb duct (13) have been installed to centrifugal pump (10) other end, fire extinguishing chamber (8) one side is equipped with first perforation (14), honeycomb duct (13) run through first perforation (14), electrical test platform (1) upper end is equipped with the second and perforates (15), honeycomb duct (13) stretch out the end and insert and locate the second and perforate (15).

4. An automated test stand for electrical testing of electrical equipment according to claim 3, characterized in that: the end of the draft tube (13) extending out of the second through hole (15) is provided with a fire extinguishing tube (16), and the lower end of the fire extinguishing tube (16) is uniformly provided with spray heads (17).

5. An automated test stand for electrical testing of electrical equipment according to claim 3, characterized in that: a liquid inlet (18) is arranged at the upper end of the liquid storage tank (9), and a flange cover (19) is arranged at the upper end of the liquid inlet (18).