CN111490482A - Low-voltage distribution cabinet convenient to intelligent management - Google Patents
Low-voltage distribution cabinet convenient to intelligent management Download PDFInfo
- Publication number
- CN111490482A CN111490482A CN202010458628.1A CN202010458628A CN111490482A CN 111490482 A CN111490482 A CN 111490482A CN 202010458628 A CN202010458628 A CN 202010458628A CN 111490482 A CN111490482 A CN 111490482A
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- China
- Prior art keywords
- power distribution
- distribution cabinet
- intelligent management
- heat dissipation
- water tank
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
Abstract
The invention discloses a low-voltage power distribution cabinet convenient for intelligent management, which comprises a power distribution cabinet body, wherein an electrical element cabinet box and an intelligent management cabinet box are arranged in the power distribution cabinet body, a heat dissipation device is arranged in the power distribution cabinet body and comprises two air boxes fixed on two sides in the power distribution cabinet body, the two air boxes are respectively opposite to the side surfaces of the electrical element cabinet box and the intelligent management cabinet box, heat dissipation ports are formed in the surfaces of the air boxes at intervals along the vertical direction, heat dissipation fans are fixedly arranged on the inner walls of the heat dissipation ports, the heat dissipation device further comprises coil pipes which are opposite to outer ports of the heat dissipation fans, a configuration box is arranged in the power distribution cabinet body, and a dust removal water tank. According to the invention, the dust-containing air is filtered and removed through the air inlet channel and the dustproof water tank, the purified air flow is used for dissipating heat inside the low-voltage power distribution cabinet, the heat dissipation effect is improved through circulating cooling water, the intelligent management of the power distribution cabinet is facilitated, and the requirements of more intelligent management can be met.
Description
Technical Field
The invention belongs to the technical field of power distribution cabinets, and particularly relates to a low-voltage power distribution cabinet convenient for intelligent management.
Background
The low-voltage distribution cabinet is the integrated equipment of equipment such as concentrated installation switch, instrument for reasonable distribution electric energy conveniently operates opening and shutting of circuit, possesses higher safety protection level, can audio-visual display circuit's the on-state, the management of also being convenient for is favorable to when taking place circuit fault and overhauls, consequently, no matter is in the enterprise today, still in the middle of the house, low-voltage distribution cabinet's use has earlier obtained extensive attention.
The intelligent low-voltage power distribution cabinet in the prior art manages and controls power equipment except that at least two air switches are arranged in the cabinet, acquires power data, and has a GPRS wireless communication network function and a remote monitoring center for data interaction.
However, such intelligent low-voltage power distribution cabinet, in the use and work process, power equipment and electrical components can produce higher heat, the prior art is difficult to carry out better protection to the power system of the intelligent low-voltage power distribution cabinet, and the existing low-voltage power distribution cabinet is also difficult to carry out equalization in dustproof and heat dissipation, so that the intelligent low-voltage power distribution cabinet is difficult to satisfy the operation environment requirements of complete sets of devices such as switches, instruments and the like of the power system, and the requirements of more intelligent management can not be satisfied, thereby leading to the technical problem that the functions of the power distribution cabinet in deep home and work are still single.
Disclosure of Invention
The invention aims to provide a low-voltage power distribution cabinet convenient for intelligent management, which has better heat dissipation and dustproof effects, can meet the requirement of installing more functional power equipment and is convenient for intelligent management of the low-voltage power distribution cabinet.
The invention is realized by the following technical scheme:
the invention relates to a low-voltage power distribution cabinet convenient for intelligent management, which comprises a power distribution cabinet body, wherein an electrical element cabinet box and an intelligent management cabinet box are arranged in the power distribution cabinet body, a heat dissipation device is arranged in the power distribution cabinet body and comprises two air boxes fixed on two sides in the power distribution cabinet body, the two air boxes are respectively opposite to the side surfaces of the electrical element cabinet box and the intelligent management cabinet box, heat dissipation ports are arranged on the surfaces of the air boxes at intervals along the vertical direction, heat dissipation fans are fixedly arranged on the inner walls of the heat dissipation ports, and the heat dissipation device further comprises coil pipes which are opposite to the outer ports of the heat dissipation;
a configuration box is arranged in the power distribution cabinet body, a dust removal water tank and a cooling water tank are fixed in the configuration box, one side of the dust removal water tank is communicated with an air inlet channel, an outer port of the air inlet channel is communicated with the outside of the power distribution cabinet body, an air suction fan is fixedly installed on the inner wall of the outer port of the air inlet channel, an outer port of the air suction fan is provided with a dust filter screen, the inner end of the air inlet channel extends towards the direction close to the bottom of an inner cavity of the dust removal water tank, an air outlet is formed in the upper;
the cooling water tank is communicated with the coil pipe through a water pipe and a water pump to form a circulating pipeline, a semiconductor radiator is fixed on the outer wall of the cooling water tank, and radiating fins are fixed on the outer side of the semiconductor radiator;
and mesh exhaust windows are arranged on the upper parts of the electric element cabinet box and the intelligent management cabinet box.
Preferably, the upper end of the dust removal water tank is provided with an A water inlet pipe, the A water inlet pipe is provided with an A electromagnetic valve, the outer end of the A water inlet pipe is connected with a municipal water supply pipe, the lower end of the dust removal water tank is provided with a water outlet pipe, the water outlet pipe is provided with a B electromagnetic valve, and the inner wall of the dust removal water tank is fixedly provided with a liquid level.
Preferably, a P L C controller is fixedly installed inside the intelligent management cabinet box, and the P L C controller is respectively connected with the liquid level sensor probe, the electromagnetic valve A and the electromagnetic valve B.
Preferably, the upper end of the cooling water tank is provided with a water inlet pipe B, the water inlet pipe B is provided with a manual valve, and the water inlet pipe B is connected with a municipal water supply pipe.
Preferably, the upper portion of the power distribution cabinet body is provided with an exhaust cavity, the electric element cabinet box and the intelligent management cabinet box are communicated with the exhaust cavity through mesh exhaust windows on the upper portion, dust baffles are arranged between the upper inner wall and the lower inner wall of the exhaust cavity in a spaced and staggered mode, a labyrinth-shaped exhaust channel is formed in a gap between the dust baffles, and two sides of the exhaust cavity are communicated with the outside through filter screens.
Preferably, the electric element cabinet box and the intelligent management cabinet box are separated by an intermediate partition plate, side partition plates are arranged on the outer sides of the electric element cabinet box and the intelligent management cabinet box, and ventilation windows opposite to the heat dissipation fans are arranged on the surfaces of the side partition plates.
Preferably, a dust filter screen is fixed on the inner side wall of the dust removal water tank and is positioned above the inner port of the air inlet channel.
Preferably, aeration holes are uniformly formed in the peripheral side face of the inner port of the air inlet channel.
The invention has the following beneficial effects:
compared with the prior art, the dust-laden air is filtered and dedusted through the air inlet channel and the dustproof water tank, the purified air flow is utilized to dissipate heat inside the low-voltage power distribution cabinet through the air box and the heat dissipation fan, and the heat dissipation effect is improved through circulating cooling water, so that the low-voltage power distribution cabinet has the capability of installing more functional power equipment, the intelligent management of the power distribution cabinet is facilitated, and the requirements of more intelligent management can be met.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of the internal structure of a low-voltage distribution cabinet convenient for intelligent management according to the present invention;
fig. 2 is a partial side sectional view of the internal structure of the distribution box.
In the drawings, the components represented by the respective reference numerals are listed below:
1-a power distribution cabinet body, 101-an electrical element cabinet, 102-an intelligent management cabinet, 103-a configuration cabinet, 104-an exhaust cavity, 105-a ventilation window, 2-an air box, 201-a heat dissipation port, 202-a heat dissipation fan, 3-a coil, 4-a dust removal water tank, 5-a cooling water tank, 6-an air inlet channel, 601-an aeration hole, 7-an air suction fan, 8-an exhaust port, 9-an air ventilation pipe, 10-a water pump, 11-a circulation pipeline, 12-a semiconductor radiator, 13-a mesh exhaust window, 14-a water inlet pipe, 15-a electromagnetic valve, 16-water outlet pipe, 17-B electromagnetic valve, 18-city water supply pipe, 19-liquid level sensor probe, 20-P L C controller, 21-B water inlet pipe, 22-manual valve, 23-a dust blocking plate and 24-dust filtering net.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present embodiment provides a low voltage power distribution cabinet convenient for intelligent management, including a power distribution cabinet body 1, an electrical component cabinet 101 and an intelligent management cabinet 102 are provided in the power distribution cabinet body 1, the electrical component cabinet 101 is used for installing a power distribution switch and a cable of an electric power system, and the intelligent management cabinet 102 is used for installing GPRS data transmission equipment and management and control equipment of the electric power system. The electric element cabinet box 101 and the intelligent management cabinet box 102 are separated by an intermediate partition plate, a heat dissipation device is arranged inside the power distribution cabinet body 1, the heat dissipation device comprises two air boxes 2 fixed on two sides inside the power distribution cabinet body 1, the two air boxes 2 are respectively opposite to the electric element cabinet box 101 and the side face of the intelligent management cabinet box 102, heat dissipation openings 201 are formed in the surfaces of the air boxes 2 at intervals in the vertical direction, heat dissipation fans 202 are fixedly installed on the inner walls of the heat dissipation openings 201, the heat dissipation device further comprises coil pipes 3 which are opposite to the outer ports of the heat dissipation fans 202, side partition plates are arranged on the outer sides of the electric element cabinet box 101 and the intelligent management cabinet box 102, ventilation windows 105 opposite to the positions of the heat dissipation fans 202 are arranged on the surfaces of the side partition plates, airflow blown by the heat dissipation fans 202 can sequentially pass through the coil pipes 3, and the.
Wherein, a configuration box 103 is arranged in the power distribution cabinet body 1, a dust removal water tank 4 and a cooling water tank 5 are fixed in the configuration box 103, one side of the dust removal water tank 4 is communicated with an air inlet channel 6, the outer port of the air inlet channel 6 is communicated with the outside of the power distribution cabinet body 1, an air suction fan 7 is fixedly installed on the inner wall of the outer port of the air inlet channel 6, a dust filter net is arranged on the outer port of the air suction fan 7, the inner end of the air inlet channel 6 extends towards the direction close to the bottom of the inner cavity of the dust removal water tank 4, aeration holes 601 are uniformly arranged on the peripheral side surface of the inner port of the air inlet channel 6, an air outlet 8 is arranged on the upper part of the dust removal water tank 4, the air outlet 8 is respectively communicated with the two air boxes 2 through an air pipe 9, a certain amount of water is filled in, the aquatic of dust removal water tank 4 can be stayed to the tiny particle solid dust in the air current, and the air current gets into the cavity more than the 4 surface of water of dust removal water tank, again by gas vent 8 and breather pipe 9 get into two bellows 2, consequently, the heat dissipation fan 202 blows in the heat dissipation air current in the 1 inner chamber of switch board body through effective dust removal processing, can not produce the pollution to the internal environment of cabinet and electrical equipment, and the protection effect is better.
Furthermore, an A water inlet pipe 14 is arranged at the upper end of the dust removal water tank 4, an A electromagnetic valve 15 is arranged on the A water inlet pipe 14, the outer end of the A water inlet pipe 14 is connected with a municipal water supply pipe 18, a water outlet pipe 16 is arranged at the lower end of the dust removal water tank 4, a B electromagnetic valve 17 is arranged on the water outlet pipe 16, a liquid level sensor probe 19 is fixed on the inner wall of the dust removal water tank 4, a dust filter net 24 is fixed on the inner side wall of the dust removal water tank 4, the dust filter net 24 is positioned above an inner port of the air inlet channel 6, the dust filter net 24 can further capture dust particles, a P L C controller 20 is fixedly arranged in the intelligent management cabinet 102, the P L C controller 20 is respectively connected with the liquid level sensor probe 19, the A electromagnetic valve 15 and the B electromagnetic valve 17, the liquid level sensor probe 19 is used for monitoring the liquid level in the dust removal water tank 4, so as to prevent the water surface exhaust port 8 from submerging, a A, B electromagnetic valve is set to be opened or closed periodically through a program in the P L C controller 20, so as to ensure the dust removal effect, the principle that the water is changed periodically, the water level is changed after the B electromagnetic valve 17 is opened, the water level sensor probe is controlled to reach a sewage level after the water level is controlled by the water level of the A water level sensor probe 16, the water outlet pipe is controlled by the P5915, the electromagnetic valve 19, the sewage water outlet pipe is controlled by the electromagnetic valve 19, the P5915, the P.
Wherein, the cooling water tank 5 is communicated with the coil 3 through a water pipe and a water pump 10 to form a circulating pipeline 11, the upper end of the cooling water tank 5 is provided with a B water inlet pipe 21, the B water inlet pipe 21 is provided with a manual valve 22, the B water inlet pipe 21 is connected with a city water supply pipe 18, tap water can be filled in the cooling water tank 5 by opening the manual valve 22, the outer wall of the cooling water tank 5 is fixed with a semiconductor radiator 12, the outer side of the semiconductor radiator 12 is fixed with a radiating fin, the semiconductor radiator 12 and the radiating fin can be communicated with the outside of the power distribution cabinet body 1 when being installed, the side surface of the power distribution cabinet body 1 is provided with an opening matched with the size of the semiconductor radiator 12, when electrical equipment is radiated, the semiconductor radiator 12 is opened to conduct the heat of water in the cooling water tank 5 to the outside, the water in the cooling water tank 5 is driven, the heat dissipation air flow that makes heat dissipation fan 202 blow in switch board body 1 inner chamber has better radiating effect.
Further, the upper portion of the power distribution cabinet body 1 is provided with an exhaust cavity 104, the upper portions of the electrical element cabinet box 101 and the intelligent management cabinet box 102 are provided with mesh exhaust windows 13, the electrical element cabinet box 101 and the intelligent management cabinet box 102 are communicated with the exhaust cavity 104 through the mesh exhaust windows 13, dust baffles 23 are arranged between the upper inner wall and the lower inner wall of the exhaust cavity 104 in a staggered mode at intervals, gaps between the dust baffles 23 form a labyrinth exhaust channel, two sides of the exhaust cavity 104 are communicated with the outside through filter screens, the labyrinth exhaust channel formed by the gaps of the dust baffles 23 can prevent external dust from entering the power distribution cabinet body 1, and heat dissipation airflow blown into the inner cavity of the power distribution cabinet body 1 by the heat dissipation fan 202 is finally exhausted to the outside of the power distribution cabinet body 1 through the mesh exhaust windows 13 and.
When the low-voltage power distribution cabinet is used, in order to facilitate intelligent management and better protect an electric power system, the air switch is arranged in the intelligent management cabinet 102 to control the air suction fan 7, the heat dissipation fan 202 of the heat dissipation device, the water pump 10 and the semiconductor radiator 12, so that the heat dissipation fan 202 dissipates heat of the electric power system through the air after dust removal, and the cooling water in the coil pipe can improve the heat dissipation efficiency and the heat dissipation effect, thereby improving the protection of the low-voltage power distribution cabinet in use.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a low-voltage distribution cabinet convenient to intelligent management, includes switch board body (1), its characterized in that: the power distribution cabinet comprises a power distribution cabinet body (1), wherein an electric element cabinet box (101) and an intelligent management cabinet box (102) are arranged in the power distribution cabinet body (1), a heat dissipation device is arranged in the power distribution cabinet body (1), the heat dissipation device comprises two air boxes (2) fixed on two sides in the power distribution cabinet body (1), the two air boxes (2) are respectively opposite to the side faces of the electric element cabinet box (101) and the intelligent management cabinet box (102), heat dissipation ports (201) are formed in the surfaces of the air boxes (2) at intervals along the vertical direction, heat dissipation fans (202) are fixedly installed on the inner walls of the heat dissipation ports (201), and the heat dissipation device further comprises coil pipes (3) which are opposite;
a configuration box (103) is arranged inside the power distribution cabinet body (1), a dust removal water tank (4) and a cooling water tank (5) are fixed inside the configuration box (103), one side of the dust removal water tank (4) is communicated with an air inlet channel (6), an outer port of the air inlet channel (6) is communicated with the outside of the power distribution cabinet body (1), an air suction fan (7) is fixedly installed on the inner wall of the outer port of the air inlet channel (6), an outer port of the air suction fan (7) is provided with a dust filtering net, the inner end of the air inlet channel (6) extends towards the direction close to the bottom of an inner cavity of the dust removal water tank (4), an exhaust port (8) is arranged at the upper part of the dust removal water tank (4), and the;
the cooling water tank (5) is communicated with the coil (3) through a water pipe and a water pump (10) to form a circulating pipeline (11), a semiconductor radiator (12) is fixed on the outer wall of the cooling water tank (5), and radiating fins are fixed on the outer side of the semiconductor radiator (12);
and mesh exhaust windows (13) are arranged at the upper parts of the electric element cabinet box (101) and the intelligent management cabinet box (102).
2. The low-voltage power distribution cabinet convenient for intelligent management according to claim 1, wherein an A water inlet pipe (14) is arranged at the upper end of the dust removal water tank (4), an A electromagnetic valve (15) is arranged on the A water inlet pipe (14), the outer end of the A water inlet pipe (14) is connected with a city water supply pipe (18), a water outlet pipe (16) is arranged at the lower end of the dust removal water tank (4), a B electromagnetic valve (17) is arranged on the water outlet pipe (16), and a liquid level sensor probe (19) is fixed on the inner wall of the dust removal water tank (4).
3. The low-voltage power distribution cabinet convenient for intelligent management according to claim 1, wherein a P L C controller (20) is fixedly installed inside the intelligent management cabinet (102), and the P L C controller (20) is respectively connected with the liquid level sensor probe (19), the A electromagnetic valve (15) and the B electromagnetic valve (17).
4. The low-voltage power distribution cabinet convenient for intelligent management according to claim 1, wherein a water inlet pipe B (21) is arranged at the upper end of the cooling water tank (5), a manual valve (22) is arranged on the water inlet pipe B (21), and the water inlet pipe B (21) is connected with a municipal water supply pipe (18).
5. The low-voltage power distribution cabinet convenient for intelligent management according to claim 1, wherein an exhaust cavity (104) is arranged at the upper part of the power distribution cabinet body (1), the electric element cabinet box (101) and the intelligent management cabinet box (102) are communicated with the exhaust cavity (104) through a mesh exhaust window (13) at the upper part, dust baffles (23) are arranged between the upper inner wall and the lower inner wall of the exhaust cavity (104) at intervals in a staggered manner, a labyrinth-shaped exhaust channel is formed by gaps between the dust baffles (23), and two sides of the exhaust cavity (104) are communicated with the outside through filter screens.
6. The low-voltage power distribution cabinet convenient for intelligent management according to claim 1, wherein the electrical component cabinet (101) and the intelligent management cabinet (102) are separated by an intermediate partition, side partitions are arranged on the outer sides of the electrical component cabinet (101) and the intelligent management cabinet (102), and ventilation windows (105) opposite to the positions of the heat dissipation fans (202) are arranged on the surfaces of the side partitions.
7. The low-voltage power distribution cabinet convenient for intelligent management according to claim 1, wherein a dust filter screen (24) is fixed on the inner side wall of the dust removal water tank (4), and the dust filter screen (24) is positioned above the inner port of the air inlet channel (6).
8. The low-voltage distribution cabinet convenient for intelligent management according to claim 1, wherein the peripheral side of the inner port of the air inlet channel (6) is uniformly provided with aeration holes (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010458628.1A CN111490482A (en) | 2020-05-27 | 2020-05-27 | Low-voltage distribution cabinet convenient to intelligent management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010458628.1A CN111490482A (en) | 2020-05-27 | 2020-05-27 | Low-voltage distribution cabinet convenient to intelligent management |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111490482A true CN111490482A (en) | 2020-08-04 |
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ID=71795288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010458628.1A Pending CN111490482A (en) | 2020-05-27 | 2020-05-27 | Low-voltage distribution cabinet convenient to intelligent management |
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| Country | Link |
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| CN (1) | CN111490482A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117096740A (en) * | 2023-09-04 | 2023-11-21 | 江苏西力欧智能电气科技有限公司 | Reactive compensation controller with self-protection function |
| CN117134215A (en) * | 2023-10-26 | 2023-11-28 | 国网山东省电力公司东营市垦利区供电公司 | High-low voltage board convenient to dust removal |
-
2020
- 2020-05-27 CN CN202010458628.1A patent/CN111490482A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117096740A (en) * | 2023-09-04 | 2023-11-21 | 江苏西力欧智能电气科技有限公司 | Reactive compensation controller with self-protection function |
| CN117096740B (en) * | 2023-09-04 | 2024-04-12 | 江苏西力欧智能电气科技有限公司 | Reactive compensation controller with self-protection function |
| CN117134215A (en) * | 2023-10-26 | 2023-11-28 | 国网山东省电力公司东营市垦利区供电公司 | High-low voltage board convenient to dust removal |
| CN117134215B (en) * | 2023-10-26 | 2024-01-02 | 国网山东省电力公司东营市垦利区供电公司 | High-low voltage board convenient to dust removal |
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