CN117613574A - Electrode boiler grounding system - Google Patents
Electrode boiler grounding system Download PDFInfo
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- CN117613574A CN117613574A CN202311418010.2A CN202311418010A CN117613574A CN 117613574 A CN117613574 A CN 117613574A CN 202311418010 A CN202311418010 A CN 202311418010A CN 117613574 A CN117613574 A CN 117613574A
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- Prior art keywords
- grounding
- copper bar
- electrode boiler
- welded
- pipeline
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 87
- 229910052802 copper Inorganic materials 0.000 claims abstract description 87
- 239000010949 copper Substances 0.000 claims abstract description 87
- 238000009826 distribution Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000010865 sewage Substances 0.000 claims description 10
- 239000010964 304L stainless steel Substances 0.000 claims description 9
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 238000002161 passivation Methods 0.000 claims description 4
- ZBMRKNMTMPPMMK-UHFFFAOYSA-N 2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid;azane Chemical compound [NH4+].CP(O)(=O)CCC(N)C([O-])=O ZBMRKNMTMPPMMK-UHFFFAOYSA-N 0.000 claims 1
- 108091006146 Channels Proteins 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/30—Electrode boilers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention discloses an electrode boiler grounding system, which belongs to the technical field of electrode boilers and comprises a system frame and electrical equipment, wherein the electrode boiler body and the electrical equipment are arranged in the system frame, a wire inlet box, a bus copper bar and a grounding copper bar are also arranged in the system frame, and the system frame is connected and welded with a grounding main pile head pre-buried in concrete outside the system frame through the grounding copper bar or a grounding cable; three supports are arranged below the electrode boiler body, each support is connected with a base, the base is electrically connected with the bus copper bar through the grounding copper bar, and the wire inlet box is electrically connected with the bus copper bar through the grounding copper bar; and the cable bridge is connected and welded with the grounding copper bar in the distribution room. The invention can meet the grounding requirement in all directions, ensure the system to be electrified safely as expected, and ensure the safe and stable operation of electrical equipment.
Description
Technical Field
The invention belongs to the technical field of electrode boilers, and particularly relates to an electrode boiler grounding system.
Background
The heating principle of the 10KV high-voltage electric steam boiler is based on that three-phase current passes through furnace water with set conductivity to release a large amount of heat energy, so that controllable and utilizable steam is generated, the heating voltage is three-phase three-wire AC 10KV, and other power control voltages are AC 380V/220V.
For a place with compact space, a high-voltage electric steam boiler system and all electric equipment are required to be intensively placed in a system frame, a steam boiler is installed on an equipment base through three supports, the layout mode cannot meet the technical requirements of a boiler plant, and the technical requirements of the boiler plant are that the boiler is placed in an isolated mode and directly placed on the ground, so that higher requirements are required to be put forward on the grounding system.
In the prior art, three-phase electrodes of an electrode steam boiler are arranged in an inner boiler cylinder, the inner cylinder is used as a neutral point, and when three phases are unbalanced, a certain amount of zero sequence current exists in an outer boiler cylinder and a pipeline which are in contact with boiler water, so that safety risks can be caused to operators. In general, the lower the liquid level of the inner cylinder is, the higher the leakage current is, the leakage current is changed along with the length of the electrode immersed in furnace water, the leakage current is very low at the maximum load, and the maximum fault current can reach 6A. Compared with a common hot water boiler, the electrode steam boiler has completely different structural forms, and is characterized in that an insulator is not adopted for insulation between a boiler body and the ground as well as between a water inlet and outlet pipe and an external pipeline, and the electrode steam boiler is used as a product for research and development, and has high design requirement on an electric grounding system and great design difficulty.
The inlet 10KV high-voltage electric steam boiler system is compact in space, and is arranged in a system frame together with all electric equipment, so that the technical requirement that a boiler factory can isolate and place a boiler and directly sit on the ground cannot be met. Compared with a hot water boiler, the steam boiler has completely different structural forms, and no insulator is used for insulation between the boiler body and the ground, between the servo motor and between the water inlet and outlet pipes and the external pipeline.
Therefore, a new technical scheme is needed to solve the problem of safe grounding of the system in the case that the 10KV high-voltage electric steam boiler and the electric equipment are intensively placed in the system frame in the space compact place.
Disclosure of Invention
The invention aims to provide an electrode boiler grounding system which can provide grounding requirements for all electrical equipment, system frame structures, cable bridges and the like in a system frame, ensure that the system is electrified safely as expected, ensure the safe and stable operation of the electrical equipment of the electrode boiler system, ensure the safety and reliability of the grounding system, and provide guarantee for safe production, and have great significance.
In order to achieve the above purpose, the invention provides an electrode boiler grounding system, which comprises a system frame and electrical equipment, wherein the electrode boiler body and the electrical equipment are arranged in the system frame, a wire inlet box, a bus copper bar and a grounding copper bar are also arranged in the system frame, and the system frame is connected and welded with a grounding main pile head pre-buried in concrete outside the system frame through the grounding copper bar or a grounding cable; three supports are arranged below the electrode boiler body, each support is connected with a base, the base is electrically connected with the bus copper bar through the grounding copper bar, and the wire inlet box is electrically connected with the bus copper bar through the grounding copper bar; the electric equipment comprises a high-voltage power distribution system, a low-voltage power distribution system and a cable bridge, wherein the cable bridge is connected and welded with the grounding copper bar in a power distribution room.
Preferably, a grounding copper bar is laid in a cable trench of the high-voltage power distribution system, and the grounding copper bar is connected and welded with the screen cabinet foundation channel steel through a yellow-green grounding wire.
Preferably, a low-voltage power distribution cabinet and a PLC control cabinet are arranged in the low-voltage power distribution system, the low-voltage power distribution cabinet and the PLC control cabinet are welded with the screen cabinet foundation channel steel, and the screen cabinet foundation channel steel is welded and communicated with the frame through a yellow-green grounding wire.
Preferably, the system frame is provided with a grounding pile head, and the grounding pile head is connected and welded with a grounding trunk pile head pre-buried in concrete outside the system frame through the grounding copper bar or the grounding cable.
Preferably, the three supports below the electrode boiler body are respectively and electrically connected with the grounding main pile head embedded in the concrete outside the system frame through the grounding copper bars, and the bus copper bars are connected and welded with the grounding main pile head embedded in the concrete outside the system frame through the grounding copper bars.
Preferably, the electrode boiler body is provided with main steam pipeline and relief valve pipeline, the material of main steam pipeline and relief valve pipeline is carbon steel.
Preferably, the electrode boiler body is provided with water supply pipeline, blow off pipeline, inner tube governing valve interface, inner loop inlet channel, inner loop outlet channel, water supply pipeline, blow off pipeline, inner tube governing valve interface, inner loop inlet channel, inner loop outlet channel's material is 304L stainless steel pipe.
Preferably, a flange is arranged on the outer side of the electrode boiler body, 304L stainless steel pipes are adopted on two sides of the flange, and the 304L stainless steel pipes on two sides of the flange are in parallel contact with and welded with the pipeline on the outer side of the electrode boiler body, and passivation treatment is carried out on the welded part.
Preferably, the main steam pipeline, the safety valve pipeline, the water supply pipeline, the sewage pipeline, the inner cylinder regulating valve interface, the inner circulation water inlet pipeline and the inner circulation water outlet pipeline are all connected to the confluence copper bar.
Preferably, the grounding copper bar in the wire inlet box is connected and welded with the busbar copper bar by a cable with the cross section of not less than 75mm < 2 >; and the shell grounding column of the wire inlet box is connected and welded with the busbar copper bar through a cable of which the thickness is not less than 75mm < 2 >.
Compared with the prior art, the electrode boiler grounding system is characterized in that an electrode boiler body and electrical equipment are arranged in a system frame, a wire inlet box, a bus copper bar and a grounding copper bar are also arranged in the system frame, and the system frame is connected and welded with a grounding main line pile head pre-buried in concrete outside the system frame through the grounding copper bar or a grounding cable; three supports below the electrode boiler body are respectively and electrically connected with a grounding main line pile head pre-buried in the concrete outside the system frame through the grounding copper bars, and the bus copper bars are connected and welded with the grounding main line pile head pre-buried in the concrete outside the system frame through the grounding copper bars; the main steam pipeline, the safety valve pipeline, the water supply pipeline, the sewage pipeline, the inner cylinder regulating valve interface, the inner circulation water inlet pipeline and the inner circulation water outlet pipeline are all connected to the confluence copper bar.
The electrode boiler grounding system provided by the invention has the advantages that grounding requirements are provided for all electrical equipment, system frames, cable bridges and the like in the system frames so as to ensure that the system is electrified safely as expected; proved by practical tests, the safe and stable operation of the electrical equipment of the electrode boiler system is ensured through the reliable grounding design; and further saves the economic cost for the grounding system of the steam boiler.
Drawings
Fig. 1 is a schematic structural view of an electrode boiler grounding system according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
It should be understood that, in various embodiments of the present invention, the sequence number of each process does not mean that the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should be understood that in the present invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present invention, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, and means that three relationships may exist, for example, and/or B may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising A, B and C", "comprising A, B, C" means that all three of A, B, C comprise, "comprising A, B or C" means that one of the three comprises A, B, C, and "comprising A, B and/or C" means that any 1 or any 2 or 3 of the three comprises A, B, C.
It should be understood that in the present invention, "B corresponding to a", "a corresponding to B", or "B corresponding to a" means that B is associated with a, from which B can be determined. Determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information. The matching of A and B is that the similarity of A and B is larger than or equal to a preset threshold value.
As used herein, "if" may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to detection" depending on the context.
The technical scheme of the invention is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
As shown in fig. 1, an electrode boiler grounding system according to a preferred embodiment of the invention comprises a system frame and electrical equipment, wherein an electrode boiler body and the electrical equipment are arranged in the system frame, a wire inlet box, a bus copper bar and a grounding copper bar are also arranged in the system frame, and the system frame is connected and welded with a grounding trunk pile head pre-buried in concrete outside the system frame through the grounding copper bar or a grounding cable; three supports are arranged below the electrode boiler body, each support is connected with a base, the base is electrically connected with the bus copper bar through the grounding copper bar, and the wire inlet box is electrically connected with the bus copper bar through the grounding copper bar; the electric equipment comprises a high-voltage power distribution system, a low-voltage power distribution system and a cable bridge, wherein the cable bridge is connected and welded with the grounding copper bar in a power distribution room. The three supports of the electrode boiler are reliably and electrically connected with pre-buried special grounding main line pile heads in concrete outside the system frame through grounding copper bars of-40 x4mm respectively, and obvious marks are attached to grounding points. The electrode boiler equipment base is reliably and electrically connected with the busbar copper bar of-50 x5mm through the grounding copper bar of-40 x4mm, and the busbar copper bar is connected and welded with a special grounding main line pile head pre-buried in concrete outside the system frame through the grounding copper bar of-40 x4 mm.
In one embodiment of the invention, the wire inlet box is a 10kV wire inlet box, the grounding copper bars in the wire inlet box are reliably connected and welded with the busbar copper bars (-50 x 5) by using cables with the cross section area not smaller than 75mm < 2 >, and the grounding column of the shell of the wire inlet box is reliably connected and welded with the busbar copper bars (-50 x 5) by cables with the cross section area not smaller than 75mm < 2 >.
In one embodiment of the invention, the electrode boiler body is internally provided with a water supply system, a steam system, a sewage disposal system, a chemical dosing system, a sampling system, a compressed air/instrument system and the like, and the main components comprise a deaerator/water supply tank, a water supply pump, a boiler, a circulating pump, a water supplementing pump, a sewage disposal expansion tank and the like.
In one embodiment of the invention, a grounding copper bar is laid in a cable duct of the high-voltage power distribution system, and the grounding copper bar is connected and welded with the screen cabinet foundation channel steel through a yellow-green grounding wire. The equipment base of the electrical equipment is directly welded with the indoor embedded part, and the incoming line cabinet and the feeder line cabinet are led into a grounding trunk reserved in the civil engineering of the power distribution room through single-core grounding wires of 95mm < 2 >. And a grounding copper bar-40 x4mm is laid in the cable duct of the high-voltage distribution room in a flat way, and the grounding wire is connected and welded with at least two parts of the screen cabinet foundation channel steel through a yellow-green grounding wire of which the length is not less than 75mm < 2 >. The cable trench should be kept clean and dry.
In one embodiment of the invention, the low-voltage power distribution system is provided with a low-voltage power distribution cabinet and a PLC control cabinet, the low-voltage power distribution cabinet and the PLC control cabinet are welded with the screen cabinet foundation channel steel, and the screen cabinet foundation channel steel is welded with the system frame through a yellow-green grounding wire to form a good electrical path. The electric working grounding electrode of the low-voltage distribution box, the motor and the valve junction box shell is reliably connected and welded with the backboard of the distribution box and the backboard of the junction box respectively through the yellow-green grounding wire, and the backboard is ensured to be reliably welded with the frame structure of the electrode boiler system. The screen cabinet in the central control room is reliably connected and welded with the foundation channel steel by utilizing the existing grounding copper bar (-40 mmx4mm thick).
In one embodiment of the invention, the system frame is provided with a grounding pile head, and the grounding pile head is connected and welded with a grounding main pile head embedded in concrete outside the system frame through the grounding copper bar or the grounding cable. The system frame is provided with a special grounding pile head, the special grounding pile head is welded through three grounding copper bars-40 x4mm or grounding cables and the special grounding main line pile head pre-buried in concrete outside the system frame, and finally the special grounding main line pile head is communicated with a grounding electrode to form a power system grounding grid, so that the reliable grounding of the system frame is realized, and the grounding cables have measures for preventing mechanical damage.
In one embodiment of the invention, the cable bridge is made of iron material, the cover plate surface of the cable bridge provides good electrical grounding, all the cable bridges are continuous conductors, and the cable bridge is connected and welded with the grounding copper bar-40 x4mm in the distribution room; in the electrode boiler, the electrode boiler is reliably connected and welded with the frame structural steel of the electrode boiler system.
In one embodiment of the invention, the three supports below the electrode boiler body are respectively and electrically connected with the grounding main pile head embedded in the concrete outside the system frame through the grounding copper bars, and the bus copper bars are connected and welded with the grounding main pile head embedded in the concrete outside the system frame through the grounding copper bars.
In an embodiment of the invention, the electrode boiler body is provided with a main steam pipeline and a safety valve pipeline, and the main steam pipeline and the safety valve pipeline are made of carbon steel.
In an embodiment of the invention, the electrode boiler body is provided with a water supply pipeline, a sewage pipeline, an inner cylinder adjusting valve connector, an inner circulation water inlet pipeline and an inner circulation water outlet pipeline, and the water supply pipeline, the sewage pipeline, the inner cylinder adjusting valve connector, the inner circulation water inlet pipeline and the inner circulation water outlet pipeline are all made of 304L stainless steel pipes.
In one embodiment of the invention, a flange is arranged on the outer side of the electrode boiler body, 304L stainless steel pipes are adopted on two sides of the flange, and the 304L stainless steel pipes on two sides of the flange are in parallel contact with and welded with the pipeline on the outer side of the electrode boiler body, and passivation treatment is carried out on the welded part.
In one embodiment of the invention, the main steam pipeline, the safety valve pipeline, the water supply pipeline, the sewage pipeline, the inner cylinder adjusting valve interface, the inner circulation water inlet pipeline and the inner circulation water outlet pipeline are all connected to the busbar copper. Wherein, the water supply pipeline, the sewage pipeline, the inner cylinder regulating valve connector, the inner circulation water inlet pipeline and the inner circulation water outlet pipeline are all made of stainless steel pipes (304L). The two sides of the flange are respectively 60mm in length,The stainless steel pipe (304L) is in parallel contact with the pipeline and welded, and the welded part is subjected to passivation treatment after welding; the copper-plated flat steel with the length of 50-100 mm and the length of 40x4mm is welded to the stainless steel pipe, the grounding leading-out end is reliably welded with the grounding copper bar with the length of-40 x4mm, and the grounding copper bar with the length of 40x4mm is reliably welded with the bus bar with the length of-50 x 5.
In one embodiment of the invention, the main steam pipeline and the safety valve pipeline are both made of carbon steel, copper plated flat steel with the length of 50-100 mm and 40x4mm is adopted at both sides of the flange and is used as a grounding leading-out end, the copper plated flat steel is welded with the main steam pipeline and the safety valve pipeline and is reliably welded with a-40 x4mm grounding copper bar, and the 40x4mm grounding copper bar and a busbar copper bar are reliably welded with-50 x5 mm.
In one embodiment of the invention, the grounding copper bar in the wire inlet box is connected and welded with the bus copper bar by a cable with the cross section of not less than 75mm < 2 >; and the shell grounding column of the wire inlet box is connected and welded with the busbar copper bar through a cable of which the thickness is not less than 75mm < 2 >.
The electrode boiler grounding system provided by the invention has the advantages that grounding requirements are provided for all electrical equipment, system frames, cable bridges and the like in the system frames so as to ensure that the system is electrified safely as expected; proved by practical tests, the safe and stable operation of the electrical equipment of the electrode boiler system is ensured through the reliable grounding design; and further saves the economic cost for the grounding system of the steam boiler.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. The electrode boiler grounding system is characterized by comprising a system frame and electrical equipment, wherein the electrode boiler body and the electrical equipment are arranged in the system frame, a wire inlet box, a bus copper bar and a grounding copper bar are also arranged in the system frame, and the system frame is connected and welded with a grounding main line pile head pre-buried in concrete outside the system frame through the grounding copper bar or a grounding cable; three supports are arranged below the electrode boiler body, each support is connected with a base, the base is electrically connected with the bus copper bar through the grounding copper bar, and the wire inlet box is electrically connected with the bus copper bar through the grounding copper bar; the electric equipment comprises a high-voltage power distribution system, a low-voltage power distribution system and a cable bridge, wherein the cable bridge is connected and welded with the grounding copper bar in a power distribution room.
2. The electrode boiler grounding system of claim 1, wherein a grounding copper bar is laid in a cable trench of the high-voltage distribution system, and the grounding copper bar is connected and welded with the screen cabinet foundation channel steel through a yellow-green grounding wire.
3. The electrode boiler grounding system according to claim 2, wherein a low-voltage power distribution cabinet and a PLC control cabinet are arranged in the low-voltage power distribution system, the low-voltage power distribution cabinet and the PLC control cabinet are welded with the screen cabinet foundation channel steel, and the screen cabinet foundation channel steel is welded with the frame through a yellow-green grounding wire.
4. The electrode boiler grounding system according to claim 1, wherein the system frame is provided with a grounding pile head, and the grounding pile head is connected and welded with a grounding main pile head pre-buried in concrete outside the system frame through the grounding copper bar or the grounding cable.
5. The electrode boiler grounding system according to claim 1, wherein three supports below the electrode boiler body are respectively and electrically connected with a grounding trunk pile head embedded in the concrete outside the system frame through the grounding copper bars, and the bus copper bars are connected and welded with the grounding trunk pile head embedded in the concrete outside the system frame through the grounding copper bars.
6. The electrode boiler grounding system according to claim 1, wherein the electrode boiler body is provided with a main steam pipe and a safety valve pipe, and the main steam pipe and the safety valve pipe are made of carbon steel.
7. The electrode boiler grounding system according to claim 1, wherein the electrode boiler body is provided with a water supply pipeline, a sewage pipeline, an inner cylinder adjusting valve connector, an inner circulation water inlet pipeline and an inner circulation water outlet pipeline, and the water supply pipeline, the sewage pipeline, the inner cylinder adjusting valve connector, the inner circulation water inlet pipeline and the inner circulation water outlet pipeline are all made of 304L stainless steel pipes.
8. The electrode boiler grounding system according to claim 1, wherein a flange is arranged on the outer side of the electrode boiler body, 304L stainless steel pipes are adopted on two sides of the flange, the 304L stainless steel pipes on two sides of the flange are in parallel contact with and welded with a pipeline on the outer side of the electrode boiler body, and passivation treatment is carried out on the welded part.
9. The electrode boiler grounding system according to any of claims 6-8, wherein said main steam pipe, said safety valve pipe, said feedwater pipe, said blowdown pipe, said inner drum regulator valve interface, said inner circulation inlet pipe, said inner circulation outlet pipe are all connected to said buster.
10. The electrode boiler grounding system according to claim 1, wherein the grounding copper bars in the inlet wire box are connected and welded with the bus copper bars by cables with the sectional areas not smaller than 75mm 2; and the shell grounding column of the wire inlet box is connected and welded with the busbar copper bar through a cable of which the thickness is not less than 75mm < 2 >.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311418010.2A CN117613574A (en) | 2023-10-30 | 2023-10-30 | Electrode boiler grounding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311418010.2A CN117613574A (en) | 2023-10-30 | 2023-10-30 | Electrode boiler grounding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117613574A true CN117613574A (en) | 2024-02-27 |
Family
ID=89954095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311418010.2A Pending CN117613574A (en) | 2023-10-30 | 2023-10-30 | Electrode boiler grounding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117613574A (en) |
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2023
- 2023-10-30 CN CN202311418010.2A patent/CN117613574A/en active Pending
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