CN105954704A - Power examination special-purpose load case - Google Patents
Power examination special-purpose load case Download PDFInfo
- Publication number
- CN105954704A CN105954704A CN201610479676.2A CN201610479676A CN105954704A CN 105954704 A CN105954704 A CN 105954704A CN 201610479676 A CN201610479676 A CN 201610479676A CN 105954704 A CN105954704 A CN 105954704A
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- China
- Prior art keywords
- casing
- support
- heat pipe
- add heat
- power
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
Abstract
The invention relates to a power examination special-purpose load case. The power examination special-purpose load case comprises a casing, a support and heating pipes, wherein the support is fixed on the casing, the heating pipes are installed in a U-shaped groove of the support, the two ends of each heating pipe pass through the U-shaped groove and the two sides of the heating pipes are disposed at intervals between the support and the casing, contact positions between the heating pipes and the support are provided with the mica porcelain plugs, and the two ends of each heating pipe are provided with binding posts; and the top portion of the casing and the top portion of the support are provided with radiating holes, the bottom of the casing is provided with cooling fans, and the outer side of the casing is provided with a switch control apparatus. The power examination special-purpose load case employs a casing type semi-closed structure, is internally provided with a straight pipe type resistance heating pipe in a clamped mode and is firm and compact in structure and moderate in volume and weight. The apparatus provided by the invention is internally provided with a terminal insulation plate, the radiating holes, the cooling fans and the like, is good in overall thermal insulation heat dissipation effect, enables the casing to maintain a proper temperature, ensures normal work of the apparatus and is safe and reliable. Besides, the power examination special-purpose load case is provided with the power supply control apparatus, onsite power failure is unnecessary during operation, and the operation is more practical.
Description
Technical field
The present invention relates to for electrical domain, be specifically related to a kind of special load box of power utility check.
Background technology
Three-phase (single-phase) multifunctional electric energy meter on-site calibrator is to the main tool for low meter metering device synthetic error on-the-spot test verification.Its operation principle is accurately to be connected with instrument by instrument electric current, voltage sampling dedicated line, is equivalent to one group of STANDARD MEASURING APPARATUS FOR in parallel at stoichiometric point.Function electric energy meter on-site calibrator can directly test out all parameters such as active power, reactive power, electric current, voltage, frequency, phase place.Meanwhile, function electric energy meter on-site calibrator is manually entered on-the-spot various measuring parameter, gather electric energy meter pulse signal by photometer head.Through intellectual analysis, the synthetic error of this metering device can be directly displayed.In test process, use requirement according to function electric energy meter on-site calibrator, all have to be larger than 10A for three-phase primary current at low meter stoichiometric point.And in current check, often can run into three-phase primary current does not all reach 10A, or a certain phase does not reaches 10A, and especially metering device during final acceptance of construction is all the more so.
For reaching test request, use in one's early years and connected, by the barrel shape heating collar star of three single-phase fixed capacities (4kW), the load device formed.Owing to heating collar belongs to heater element; in test process, continuous conduction time is typically at about tens seconds to 120 seconds; heating collar surface temperature has bigger rising; even burn red; often can cause: 1) roasting bad test site ground (ceramic tile, cement, insulation offset plate), user's production environment is damaged；2) make connection cable conductor exterior insulation skin season cracking, easily cause electric leakage, short circuit, the person, power supply unit, test equipment are brought potential safety hazard；3) test terminate after, heating collar can not fast cooling, staff is caused scalded skin, burns out the danger such as clothes；4) when accessing primary circuit, need power failure operation, user is caused artificial power failure；5) contact bad error table meter is stopped power transmission, easily cause test erroneous judgement；6) it is electrified for a long time heating, heating collar appearance iron sheet corrosion can be caused, break down；7) volume is big, Heavy Weight, and remaining temperature temperature fall time is long, causes vehicle-mounted carrying inconvenience, and row access cycle is long, the work efficiency of the business such as reduction special examination.
In site inspection work, improve user and the person of staff, equipment safety, facilitate work on the spot to carry out, be effectively improved the safety in production of work efficiency guarantee.The special load device used in one's early years can not reach the necessary requirement of safety in production, brings many potential safety hazards to safety in production.
Summary of the invention
It is an object of the invention to solve fragile equipment, the production scene that above-mentioned prior art exists, the person is caused potential safety hazard, hinder the deficiency of user power utilization, there is provided a kind of the most safe and reliable to equipment and the person, ensure user's normal electricity consumption, heat insulation and dissipation is effective, service life length the special load box of power utility check.
The present invention is achieved by the following technical solutions:
The special load box of power utility check, is characterized in that and includes casing 1, support 2 and add heat pipe 3, described support 2 is in inverted U structure, and support 2 is fixed on casing 1 by U-type groove two ends, and U-type groove both sides are provided with thermal insulation board 4；Add in the U-type groove that heat pipe 3 is installed on support 2, add heat pipe 3 two ends and be placed at the interval of support 2 and casing 1 through U-type groove two, add heat pipe 3 and support 2 contact position is provided with Muscovitum porcelain and blocks up 5, add heat pipe 3 two ends and be provided with binding post 6；Described casing 1 and support 2 top are provided with louvre 8, cooling fan 9 is installed bottom casing 1, being provided with switch controlling device 7 outside casing 1, add heat pipe 3 and connect cable by binding post 6 and be connected with switch controlling device 7, the cable other end welding cable of Access Control switch presss from both sides；Described switch controlling device 7 is all connected with power supply outside casing 1 with cooling fan 9；
The described heat pipe 3 that adds includes rustless steel main body and protective layer; protective layer is sintered in rustless steel body surfaces; by weight, described protective layer is composed of the following components: 8.2 parts of acrylic resins, 2.6 parts of dimethoxydimethylsilane; 0.9 part of hexamethyl disiloxane; 2.1 parts of polyoxyethylene octyl phenol ethers, 1.5 part 3,6-dioxa-1; 8-octamethylenediamine tetraacethyl, 0.1 part of mono phosphoric acid ester isobutyl di-potassium.
A modification of the present invention is, described in add the longitudinally spaced arrangement of heat pipe 3, to add the thermal diffusivity between heat pipe 3.
The another kind of improvement of the present invention is that described thermal insulation board 4 is fixed on support 2 by rigid staybolt.
Another improvement of the present invention is that described casing 1 uses high-strength waterproof material to prepare.
The special load box of this power utility check, uses box-type semi-closed structure, and internal Ka Zhuan straight tube city resistance heating tube, sound construction is compact, and volume weight is moderate.Being provided with thermal insulation board, louvre, cooling fan etc. in device, overall heat insulation and dissipation is effective, and beneficially casing keeps preference temperature, it is ensured that device normally works, safe and reliable.Additionally, the present invention is provided with power control, on-the-spot without having a power failure during operation, operate the most practical.
Accompanying drawing explanation
The structural representation of Fig. 1: the present invention；
The structural representation of Fig. 2: support；
Fig. 3: support and the side view adding heat pipe；
In figure: 1: casing: 2: support；3: add heat pipe；4: thermal insulation board；5: Muscovitum porcelain blocks up；6: binding post；7: switch controlling device；8: louvre；9: cooling fan.
Detailed description of the invention
Referring to the drawings, provide the detailed description of the invention of the present invention, be used for the structure of the present invention is further described.
Embodiment 1
The special load box of power utility check of the present embodiment, including casing 1, support 2 with add heat pipe 3, casing 1 uses high-strength waterproof material to prepare, support 2 is in inverted U structure, it is internal that support 2 is installed on casing 1, U-type groove two ends are fixed on casing 1, and U-type groove both sides are provided with and are fixed with thermal insulation board 4 by rigid staybolt, in order to carry out the most heat insulation to support 2.
Add in the U-type groove that heat pipe 3 is installed on support 2, and add the longitudinally spaced arrangement of heat pipe 3, it is beneficial to heat radiation, adds heat pipe 3 two ends and be placed at the interval support 2 and casing 1 through U-type groove two, add heat pipe 3 and support 2 contact position is provided with Muscovitum porcelain and blocks up 5, to guarantee the sealing adding heat pipe 3 with support 2.
Described casing 1 and support 2 top are provided with louvre 8, are provided with cooling fan 9 bottom casing 1, coordinate the thermal insulation board 4 of U-type groove both sides that support and interior device thereof are thermally shielded and are dispelled the heat, it is ensured that the normal work of the suitable operating temperature of device, beneficially apparatus of the present invention.
Simultaneously, add heat pipe 3 two ends and be provided with binding post 6, power control 7 is installed outside casing 1, add heat pipe 3 and connect cable by binding post 6 and be connected with switch controlling device 7, the cable other end welding cable folder of Access Control switch, can control to add the work of heat pipe 3 by switch controlling device 7.
During operation element, test site can not have a power failure, the safe clamping connection load device of charged not on-load, by on-load switch free break-make load, the most convenient for repeated measure.Meanwhile, the performance of on-load switch also plays the effect of protection.
Wherein, described switch controlling device 7 is all connected with power supply outside casing 1 with cooling fan 9, and the switch of switch controlling device 7 can not affect the work of cooling fan 9, thus the continuous firing of beneficially cooling fan 9, the waste heat adding heat pipe 3 can rapid dispersion.
The above-mentioned heat pipe 3 that adds includes rustless steel main body and protective layer; protective layer is sintered in rustless steel body surfaces; by weight, described protective layer is composed of the following components: 8.2g acrylic resin, 2.6g dimethoxydimethylsilane; 0.9g hexamethyl disiloxane; 2.1g polyoxyethylene octyl phenol ether, 1.5g3,6-dioxa-1; 8-octamethylenediamine tetraacethyl, 0.1g mono phosphoric acid ester isobutyl di-potassium.
At normal temperatures; weigh 8.2g acrylic resin in 200ml beaker; weigh 2.6g dimethoxydimethylsilane, 0.9g hexamethyl disiloxane, 1.5g3 the most respectively; 6-dioxa-1; 8-octamethylenediamine tetraacethyl adds in beaker, stirs, and finally weighs in 2.1g polyoxyethylene octyl phenol ether, 0.1g mono phosphoric acid ester isobutyl di-potassium addition beaker; stir, protecting layer compositions in the preparation present invention.
The protecting layer compositions obtained in above-described embodiment is used to prepare sample to be tested (being scratched on the thermal transfer film aluminized by metal coating layer composition, be then coated hot stamping glue, carry out thermoprint with thermoprinting machine on cheque paper and test).The following describe and adhesiveness and drying property are evaluated.
The PET film of band peel ply is coated with in above-described embodiment with Wen Kaier automatic coating instrument the protecting layer compositions obtained, hot air drying, aluminizes in coating the most again, prepare thermal transfer film.With the protecting layer compositions obtained in coating Examples corresponding on Wen Kaier automatic coating instrument on thermal transfer film, hot air drying, coating thickness is 1-2 micron.It is coated with hot stamping glue, hot air drying the most again with Wen Kaier automatic coating instrument.Placing 8 hours at 50 DEG C, with thermoprinting machine, coating is transferred on cheque paper from thermal transfer film, the cheque paper of coating is the test sample of preparation.
Adhesiveness
Adhesive tape is laminated in the coating of test sample, the most gently adhesive tape is torn, see the combination situation of aluminium coated and protective layer.If aluminium coated entirely without separating, is cited as " good " with protective layer, if aluminium coated has small part to separate with protective layer, be cited as " in ", otherwise it is cited as " poor ".
Drying property
The protecting layer compositions obtained it is coated with in above-described embodiment with Wen Kaier automatic coating instrument, after hot air drying, thermal transfer film doubling (coated face is to coated face), firmly compacting.Opening again, if there being coating to be sticked out by the other side after opening, being cited as " poor ", if coating is not sticked out by the other side, but have tacky phenomenon be then cited as " in ", be otherwise cited as " good ".
Table 1: protective layer test sample test performance
The special load box of power utility check of the present invention, it is ensured that casing external temperature, quickly reduces box interior temperature, reduces user's frequency of power cut.Its concrete advantage is as follows:
1, the present invention is box-type semi-closed structure, internal card dress straight pipe type resistance heating tube, contrasts original load device, and entirety of the present invention is the compactest, and volume, weight decrease about 1/3rd, and volume weight is the most moderate.
2, utilize the feature heating pipe volume dispersed arrangement few, longitudinally spaced, meeting power needs, control switch adding star-like being connected to of heat pipe packet.The cable other end welding cable folder of Access Control switch, it is achieved be not required to user and have a power failure and load can be added access customer repeated measure.
3, by fixing adding the dispersed installation of heat pipe, install thermal insulation board, support in the stent side portion adding heat pipe both sides and be integrally attached on casing adding heat pipe mounting bracket, it is achieved reduce and add the amount of radiation that when heat pipe runs, heat is outside, it is ensured that casing external temperature.
4, lower box installs cooling fan, upwards air blast, and casing and frame upper are provided with louvre, can realize quickly reducing box interior temperature.Owing to cooling fan power supply is connected on control Switching Power Supply side, controlling switch even if disconnecting, cooling fan is still in work, the problem that can preferably solve to add heat pipe waste heat fast cooling.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing; but; the present invention is not limited to the detail in above-mentioned embodiment; in the technology concept of the present invention; technical scheme can be carried out multiple simple deformation, these simple deformation belong to protection scope of the present invention.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in the case of reconcilable, can be combined by any suitable means, in order to avoid unnecessary repetition, various possible compound modes are illustrated by the present invention the most separately.
Additionally, can also carry out combination in any between the various different embodiment of the present invention, as long as it is without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (4)
1. the special load box of power utility check, it is characterized in that: include casing (1), support (2) and add heat pipe (3), described support (2) is in inverted U structure, and support (2) is fixed on casing (1) by U-type groove two ends, and U-type groove both sides are provided with thermal insulation board (4)；Add heat pipe (3) to be installed in the U-type groove of support (2), add heat pipe (3) two ends and be placed at the interval of support (2) and casing (1) through U-type groove two, add heat pipe (3) and support (2) contact position is provided with Muscovitum porcelain and blocks up (5), add heat pipe (3) two ends and be provided with binding post (6)；Described casing (1) and support (2) top are provided with louvre (8), casing (1) bottom is provided with cooling fan (9), casing (1) outside is provided with switch controlling device (7), add heat pipe (3) to be connected with switch controlling device (7) by binding post (6) connection cable, the cable other end welding cable folder of Access Control switch；Described switch controlling device (7) is all connected with casing (1) outside power supply with cooling fan (9)；
The described heat pipe (3) that adds includes rustless steel main body and protective layer; protective layer is sintered in rustless steel body surfaces; by weight, described protective layer is composed of the following components: 8.2 parts of acrylic resins, 2.6 parts of dimethoxydimethylsilane; 0.9 part of hexamethyl disiloxane; 2.1 parts of polyoxyethylene octyl phenol ethers, 1.5 part 3,6-dioxa-1; 8-octamethylenediamine tetraacethyl, 0.1 part of mono phosphoric acid ester isobutyl di-potassium.
2. the special load box of power utility check as claimed in claim 1, it is characterised in that add heat pipe (3) longitudinally spaced arrangement described in:.
3. the special load box of power utility check as claimed in claim 1, it is characterised in that: described thermal insulation board (4) is fixed on support (2) by rigid staybolt.
4. the special load box of power utility check as claimed in claim 1, it is characterised in that: described casing (1) uses high-strength waterproof material to prepare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479676.2A CN105954704A (en) | 2016-06-27 | 2016-06-27 | Power examination special-purpose load case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479676.2A CN105954704A (en) | 2016-06-27 | 2016-06-27 | Power examination special-purpose load case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105954704A true CN105954704A (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610479676.2A Pending CN105954704A (en) | 2016-06-27 | 2016-06-27 | Power examination special-purpose load case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105954704A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188280A (en) * | 2018-09-27 | 2019-01-11 | 江苏瑞昌哥尔德发电设备股份有限公司 | A kind of generating set load device for testing |
| CN110631118A (en) * | 2019-10-21 | 2019-12-31 | 广东澳特利灯光有限公司 | Superconducting heater and production process thereof |
| CN114545758A (en) * | 2022-01-07 | 2022-05-27 | 浙江八达电子仪表有限公司 | Testing device for debugging daily timing error of electric energy meter |
Citations (3)
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| CN201096812Y (en) * | 2007-08-31 | 2008-08-06 | 刘伟 | Intelligent load device for automatic test |
| CN202975291U (en) * | 2012-12-13 | 2013-06-05 | 吴江市华诚电子有限公司 | Load case |
| CN203337693U (en) * | 2013-07-30 | 2013-12-11 | 重庆长安伟世通发动机控制系统有限公司 | Engine controller electromagnetic compatibility experiment load box |
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2016
- 2016-06-27 CN CN201610479676.2A patent/CN105954704A/en active Pending
Patent Citations (3)
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|---|---|---|---|---|
| CN201096812Y (en) * | 2007-08-31 | 2008-08-06 | 刘伟 | Intelligent load device for automatic test |
| CN202975291U (en) * | 2012-12-13 | 2013-06-05 | 吴江市华诚电子有限公司 | Load case |
| CN203337693U (en) * | 2013-07-30 | 2013-12-11 | 重庆长安伟世通发动机控制系统有限公司 | Engine controller electromagnetic compatibility experiment load box |
Non-Patent Citations (1)
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| 单海峰等: "互感器测试中全电子式负载箱的研制", 《电测与仪表》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188280A (en) * | 2018-09-27 | 2019-01-11 | 江苏瑞昌哥尔德发电设备股份有限公司 | A kind of generating set load device for testing |
| CN110631118A (en) * | 2019-10-21 | 2019-12-31 | 广东澳特利灯光有限公司 | Superconducting heater and production process thereof |
| CN114545758A (en) * | 2022-01-07 | 2022-05-27 | 浙江八达电子仪表有限公司 | Testing device for debugging daily timing error of electric energy meter |
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