CN220775384U - Nuclear magnetic technology control box - Google Patents
Nuclear magnetic technology control box Download PDFInfo
- Publication number
- CN220775384U CN220775384U CN202322329777.XU CN202322329777U CN220775384U CN 220775384 U CN220775384 U CN 220775384U CN 202322329777 U CN202322329777 U CN 202322329777U CN 220775384 U CN220775384 U CN 220775384U
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- Prior art keywords
- control box
- alternating
- current contactor
- relay
- power supply
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- 238000005516 engineering process Methods 0.000 title description 6
- 229910052734 helium Inorganic materials 0.000 claims abstract description 35
- 239000001307 helium Substances 0.000 claims abstract description 35
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000000819 phase cycle Methods 0.000 claims abstract description 27
- 238000012544 monitoring process Methods 0.000 claims abstract description 24
- 230000002159 abnormal effect Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract 2
- 239000010963 304 stainless steel Substances 0.000 claims description 7
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000005311 nuclear magnetism Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a nuclear magnetic control box, in particular to the technical field of control boxes, which comprises a control box body, wherein three mounting cavities are sequentially arranged in the control box body from top to bottom, mounting plates are fixedly arranged in the three mounting cavities, four alternating-current contactors are arranged on the mounting plates in the upper mounting cavities, the four alternating-current contactors are an alternating-current contactor I, an alternating-current contactor II, an alternating-current contactor III and an alternating-current contactor IV respectively, a switching power supply, a transformer and two delay relays are fixedly arranged on the mounting plates in the middle mounting cavity, the two delay relays are arranged between the switching power supply and the transformer, the two delay relays are a delay relay I and a delay relay II respectively, and a phase sequence relay and an overvoltage and undervoltage monitoring relay are arranged on the mounting plates in the bottom mounting cavities. The method is used for detecting and controlling the helium compressor in the container and preventing unnecessary loss caused by abnormal shutdown of the helium compressor.
Description
Technical Field
The utility model relates to the technical field of control boxes, in particular to a nuclear magnetic technology control box.
Background
The container is internally provided with liquid helium, and the boiling point of the liquid helium is the lowest in known substances, so that the liquid helium is easy to be vaporized into helium and overflows out of the nuclear magnetic equipment, and great loss is caused, therefore, the compressor is connected to the nuclear magnetic equipment to introduce the escaped helium into the compressor, the helium is compressed to be reduced into liquid, and then the reduced liquid helium is recovered into the nuclear magnetic equipment, so that the loss of the liquid helium is reduced.
In order to enable the compressor to work normally in different working environments, the power supply of the compressor must be redesigned to meet the requirement of normal use under different voltages.
Disclosure of Invention
The utility model aims to provide a nuclear magnetic technology control box which is used for detecting and controlling a helium compressor in a container and preventing unnecessary loss caused by abnormal shutdown of the helium compressor.
In order to achieve the above object, the present utility model provides the following technical solutions: the nuclear magnetic technology control box comprises a control box body and a control box door hinged at the front end of the control box body, wherein three mounting cavities are sequentially formed in the control box body from top to bottom, and mounting plates are fixedly arranged in the three mounting cavities through bolts;
four alternating current contactors are arranged on the mounting plate in the upper mounting cavity, and are an alternating current contactor I, an alternating current contactor II, an alternating current contactor III and an alternating current contactor IV respectively;
a switching power supply, a transformer and two delay relays are fixedly arranged on a mounting plate in the middle mounting cavity, the two delay relays are arranged between the switching power supply and the transformer, and the two delay relays are a delay relay I and a delay relay II respectively;
a phase sequence relay and an overvoltage and undervoltage monitoring relay are arranged on a mounting plate in the bottom mounting cavity;
the container is provided with a breaker outside, the transformer, the first alternating-current contactor and the second alternating-current contactor are connected to the output end of the breaker, the switching power supply is connected to the output end of the transformer, the transformer converts three-phase power of the breaker into single-phase power and supplies power to the switching power supply, and then the switching power supply supplies 24V direct current to supply power to the control box;
the overvoltage and undervoltage monitoring relay is connected to the output end of the circuit breaker, the third AC contactor and the fourth AC contactor are both arranged at the output end of the overvoltage and undervoltage monitoring relay, the third AC contactor and the fourth AC contactor are connected to the input end of the helium compressor and the cold machine, and the overvoltage and undervoltage monitoring relay is used for supplying power to the helium compressor in a wide voltage range when the third AC contactor and the fourth AC contactor switch different gears.
Preferably, the mounting plate in the upper mounting cavity is fixedly provided with a fixed block, the four alternating current contactors are fixedly arranged on the fixed block, one side of the fixed block is provided with a grounding row, and the grounding row is fixedly arranged on the mounting plate in the upper mounting cavity.
Preferably, the fuse and the wiring terminal are fixedly arranged on the mounting plate in the bottom mounting cavity, and the phase sequence relay and the overvoltage and undervoltage monitoring relay are arranged between the fuse and the wiring terminal.
Preferably, the phase sequence relay is connected to the output end of the circuit breaker, the delay relay I and the delay relay II are both arranged at the output end of the phase sequence relay, the relay I and the delay relay II are respectively connected to the input ends of the AC contactor I and the AC contactor II, the AC contactor I and the AC contactor II are both arranged at the input end of the helium compressor, when the phase sequence relay detects that the phase sequence is abnormal, the delay relay I and the delay relay II respectively control the AC contactor I and the AC contactor II to switch different phase sequences, and the delay relay I and the delay relay II are used for avoiding a cold machine and a helium compressor to simultaneously lead to instant starting current of a circuit to be overlarge, so that the AC contactor I and the AC contactor II are prevented from causing short circuit during switching.
Preferably, the front end of the control box door is fixedly provided with a monitor, the monitor is arranged at the output end of the transformer, and the monitor is a multifunctional ammeter and is used for monitoring the supply voltage, current, frequency, electric energy and the like of the three-phase power of the main circuit.
Preferably, a power input indicator lamp is fixedly arranged on one side of the front end of the control box door, a helium compressor power supply indicator lamp is fixedly arranged on the other side of the front end of the control box door, and the power input indicator lamp and the helium compressor power supply indicator lamp are both arranged at the top of the monitor.
Preferably, the front end of the control box door is also fixedly provided with a door handle and a warning sign, the warning sign is arranged on one side of the door handle, and the door handle and the warning sign are arranged between the monitor and the power input indicator.
Preferably, a plurality of 304 stainless steel waterproof cable joints are arranged at the bottom of one side of the control box body, the control box body and the control box door are made of anti-corrosion waterproof 304 stainless steel materials, and a wall hanging bracket is welded at the rear end of the control box body.
In the technical scheme, the utility model has the technical effects and advantages that:
1. monitoring is carried out when the third alternating-current contactor and the fourth alternating-current contactor are switched to different gears by installing an overvoltage and undervoltage monitoring relay so as to adapt to a wide voltage range to supply power to the helium compressor;
2. when the phase sequence relay detects that the phase sequence is abnormal, the first and second alternating current contactors are respectively controlled by the first and second delay relays to switch different phase sequences, the corresponding power supply circuits are switched when the voltage is over or under, and the normal power supply circuits are switched when the phase sequence is reversed;
3. the delay relay avoids the phenomenon that the instantaneous starting current of a circuit is overlarge due to the simultaneous starting of a refrigerator and a helium compressor, and meanwhile, the on-off of the first alternating-current contactor and the second alternating-current contactor is switched through delay so as to prevent the short circuit caused by the switching of the first alternating-current contactor and the second alternating-current contactor;
4. the control box is integrally designed by 304 stainless steel, and has the functions of corrosion resistance and water resistance.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a front view of the present utility model;
FIG. 2 is a side view of the present utility model;
FIG. 3 is a block diagram of the control box, control box door and wall mount bracket of the present utility model;
FIG. 4 is a view showing the construction of the inside of the control box according to the present utility model;
fig. 5 is a system diagram of the present utility model.
Reference numerals illustrate:
1 control box, 2 control chamber door, 3 mounting panel, 4 AC contactor, 5 AC contactor two, 6 AC contactor three, 7 AC contactor four, 8 switching power supply, 9 transformer, 10 time delay relay one, 11 time delay relay two, 12 phase sequence relay, 13 under-voltage monitoring relay, 14 fixed block, 15 earth bar, 16 fuses, 17 binding post, 18 watch-dog, 19 power input pilot lamp, 20 helium compressor power supply pilot lamp, 21 door handle, 22 warning sign, 23304 stainless steel waterproof cable joint, 24 hanging support.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
The utility model provides a nuclear magnetic technology control box as shown in figures 1-5, which comprises a control box body 1 and a control box door 2 hinged at the front end of the control box body 1, wherein a plurality of 304 stainless steel waterproof cable joints 23 are arranged at the bottom of one side of the control box body 1, the control box body 1 and the control box door 2 are made of 304 stainless steel materials and have the functions of corrosion resistance, water resistance and the like, a wall hanging bracket 24 is welded at the rear end of the control box body 1, the wall hanging installation of the control box is facilitated, a door handle 21 and a warning sign 22 are fixedly arranged at the front end of the control box door 2, and the warning sign 22 is arranged at one side of the door handle 21.
The control box 1 is internally provided with three installation cavities from top to bottom in sequence, and the installation plates 3 are fixedly arranged in the three installation cavities through bolts.
Four alternating-current contactors are arranged on the mounting plate 3 in the upper mounting cavity, the four alternating-current contactors are an alternating-current contactor I4, an alternating-current contactor II 5, an alternating-current contactor III 6 and an alternating-current contactor IV 7 respectively, a fixed block 14 is fixedly arranged on the mounting plate 3 in the upper mounting cavity, the four alternating-current contactors are fixedly arranged on the fixed block 14, one side of the fixed block 14 is provided with a grounding row 15, and the grounding row 15 is fixedly arranged on the mounting plate 3 in the upper mounting cavity so as to facilitate the installation of the four alternating-current contactors.
The mounting plate 3 in the middle mounting cavity is fixedly provided with a switching power supply 8, a transformer 9 and two delay relays, the two delay relays are arranged between the switching power supply 8 and the transformer 9, and the two delay relays are respectively a delay relay I10 and a delay relay II 11.
The container is equipped with the circuit breaker outward, transformer 9, AC contactor one 4 and AC contactor two 5 all connect at the circuit breaker output, switching power supply 8 connects at transformer 9 output, and transformer 9 turns the three-phase electricity of circuit breaker into single-phase electricity to supply power for switching power supply 8, then switching power supply 8 provides 24V direct current and supplies power for the control box.
The mounting plate 3 in the bottom mounting cavity is provided with a phase sequence relay 12 and an overvoltage and undervoltage monitoring relay 13, the overvoltage and undervoltage monitoring relay has an overvoltage or undervoltage alarm function, the mounting plate 3 in the bottom mounting cavity is fixedly provided with a fuse 16 and a wiring terminal 17, and the phase sequence relay 12 and the overvoltage and undervoltage monitoring relay 13 are arranged between the fuse 16 and the wiring terminal 17.
The overvoltage and undervoltage monitoring relay 13 is connected to the output end of the circuit breaker, the third AC contactor 6 and the fourth AC contactor 7 are arranged at the output end of the overvoltage and undervoltage monitoring relay 13, the third AC contactor 6 and the fourth AC contactor 7 are connected to the input end of the helium compressor, and the overvoltage and undervoltage monitoring relay 13 is used for monitoring when the third AC contactor 6 and the fourth AC contactor 7 switch different gears so as to adapt to a wide voltage range to supply power to the helium compressor, and the helium compressor can adapt to voltages in three-phase wide ranges of AC 360V-AC 528V and 50/60 Hz.
The phase sequence relay 12 is connected to the output end of the circuit breaker, the delay relay I10 and the delay relay II 11 are both arranged at the output end of the phase sequence relay 12, the relay I10 and the delay relay II 11 are respectively connected to the input ends of the AC contactor I4 and the AC contactor II 5, the AC contactor I4 and the AC contactor II 5 are both arranged at the input end of the helium compressor, and when the phase sequence relay 12 detects that the phase sequence is abnormal, the delay relay I10 and the delay relay II 11 respectively control the AC contactor I4 and the AC contactor II 5 to switch different phase sequences; the corresponding power supply circuit is switched when overvoltage or undervoltage is carried out, and the normal power supply circuit is switched when the phase sequence is reversed.
The circuit breaker is connected at the cold machine input, delay relay 12 is used for avoiding cold machine and helium compressor simultaneous start to lead to the circuit to start the electric current excessively in the twinkling of an eye, switches the break-make of AC contactor one and 4 AC contactor two 5 simultaneously through the delay to prevent AC contactor one 4 and AC contactor two 5 to lead to the short circuit when switching.
The front end of the control box door 2 is fixedly provided with a monitor 18, the monitor 18 is arranged at the output end of the transformer 9, the monitor 18 is a multifunctional ammeter and is used for monitoring the power supply voltage, current, frequency, electric energy and the like of the three-phase power of the main circuit, and the power supply voltage, the current, the frequency, the electric energy and the like are fed back to the upper computer through RS485 communication, so that the control box has remote control and monitoring functions.
The control box door is characterized in that a power input indicator lamp 19 is fixedly arranged on one side of the front end of the control box door 2 and used for displaying whether the control box is electrified, a helium compressor power supply indicator lamp 20 is fixedly arranged on the other side of the front end of the control box door 2 and used for displaying whether the helium compressor is electrified, the power input indicator lamp 19 and the helium compressor power supply indicator lamp 20 are both arranged at the top of the monitor 18, and the door handle 21 and the warning sign 22 are both arranged between the monitor 18 and the power input indicator lamp 19.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (8)
1. The utility model provides a nuclear magnetism technique control box, includes control box (1) and articulates in control box door (2) of control box (1) front end, its characterized in that: three mounting cavities are sequentially formed in the control box body (1) from top to bottom, and mounting plates (3) are fixedly arranged in the three mounting cavities;
four alternating-current contactors are arranged on the mounting plate (3) in the upper mounting cavity, and are an alternating-current contactor I (4), an alternating-current contactor II (5), an alternating-current contactor III (6) and an alternating-current contactor IV (7) respectively;
a switching power supply (8), a transformer (9) and two delay relays are fixedly arranged on a mounting plate (3) in the middle mounting cavity, and the two delay relays are arranged between the switching power supply (8) and the transformer (9) and are respectively a first delay relay (10) and a second delay relay (11);
a phase sequence relay (12) and an overvoltage and undervoltage monitoring relay (13) are arranged on a mounting plate (3) in the bottom mounting cavity;
the container is provided with a circuit breaker, the transformer (9), the first alternating-current contactor (4) and the second alternating-current contactor (5) are connected to the output end of the circuit breaker, the switching power supply (8) is connected to the output end of the transformer (9), the transformer (9) converts three-phase electricity of the circuit breaker into single-phase electricity and supplies power to the switching power supply (8), and then the switching power supply (8) supplies power to the control box;
the overvoltage and undervoltage monitoring relay (13) is connected to the output end of the circuit breaker, the third alternating current contactor (6) and the fourth alternating current contactor (7) are arranged at the output end of the overvoltage and undervoltage monitoring relay (13), the third alternating current contactor (6) and the fourth alternating current contactor (7) are connected to the input end of the helium compressor and the input end of the refrigerator, and the third alternating current contactor (6) and the fourth alternating current contactor (7) are used for supplying power to the helium compressor in a wide voltage range when the third alternating current contactor (6) and the fourth alternating current contactor (7) switch different gears.
2. A nuclear magnetic control box as claimed in claim 1, wherein: fixed block (14) are fixed on mounting panel (3) in the upper portion installation cavity, and four alternating current contactor are all fixed to be located on fixed block (14), fixed block (14) one side is equipped with ground connection row (15), ground connection row (15) is fixed to be located on mounting panel (3) in the upper portion installation cavity.
3. A nuclear magnetic control box as claimed in claim 1, wherein: and a fuse (16) and a wiring terminal (17) are fixedly arranged on the mounting plate (3) in the bottom mounting cavity, and the phase sequence relay (12) and the overvoltage and undervoltage monitoring relay (13) are arranged between the fuse (16) and the wiring terminal (17).
4. A nuclear magnetic control box as claimed in claim 1, wherein: the phase sequence relay (12) is connected to the output end of the circuit breaker, the first delay relay (10) and the second delay relay (11) are both arranged at the output end of the phase sequence relay (12), the first delay relay (10) and the second delay relay (11) are respectively connected to the input ends of the first alternating-current contactor (4) and the second alternating-current contactor (5), the first alternating-current contactor (4) and the second alternating-current contactor (5) are both arranged at the input ends of the helium compressor, and when the first delay relay (12) detects that the phase sequence is abnormal, the first alternating-current contactor (4) and the second alternating-current contactor (5) are respectively controlled to switch different phase sequences through the first delay relay (10) and the second delay relay (11).
5. A nuclear magnetic control box as claimed in claim 1, wherein: the intelligent control box is characterized in that a monitor (18) is fixedly arranged at the front end of the control box door (2), the monitor (18) is arranged at the output end of the transformer (9), and the monitor (18) is a multifunctional ammeter and is used for monitoring the power supply voltage, current, frequency and electric energy of the three-phase power of the main circuit.
6. The nuclear magnetic control box of claim 5, wherein: the helium compressor power supply control box is characterized in that a power supply input indicator lamp (19) is fixedly arranged on one side of the front end of the control box door (2), a helium compressor power supply indicator lamp (20) is fixedly arranged on the other side of the front end of the control box door (2), and the power supply input indicator lamp (19) and the helium compressor power supply indicator lamp (20) are both arranged at the top of the monitor (18).
7. The nuclear magnetic control box of claim 6, wherein: the door handle (21) and the warning sign (22) are further fixedly arranged at the front end of the control box door (2), the warning sign (22) is arranged on one side of the door handle (21), and the door handle (21) and the warning sign (22) are arranged between the monitor (18) and the power input indicator lamp (19).
8. A nuclear magnetic control box as claimed in claim 1, wherein: the control box body (1) is characterized in that a plurality of 304 stainless steel waterproof cable connectors (23) are arranged at the bottom of one side of the control box body (1), the control box body (1) and the control box door (2) are made of 304 stainless steel materials, and a wall-mounted bracket (24) is welded at the rear end of the control box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322329777.XU CN220775384U (en) | 2023-08-29 | 2023-08-29 | Nuclear magnetic technology control box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322329777.XU CN220775384U (en) | 2023-08-29 | 2023-08-29 | Nuclear magnetic technology control box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220775384U true CN220775384U (en) | 2024-04-12 |
Family
ID=90600028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322329777.XU Active CN220775384U (en) | 2023-08-29 | 2023-08-29 | Nuclear magnetic technology control box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220775384U (en) |
-
2023
- 2023-08-29 CN CN202322329777.XU patent/CN220775384U/en active Active
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