DC UPS system metering box

Abstract

The utility model relates to the technical field of metering boxes, and particularly discloses a DC UPS system metering box which comprises a box body, a box door and a back plate, the interior of the box body is hollow, one side of the box body is provided with an opening, and the box door is installed on the opening side of the box body through a hinge; the back plate is fixed on one side, opposite to the box door, of the box body through a screw rod, the back plate is sequentially provided with a surge lightning protection protector, an air switch circuit breaker, a direct current UPS module, a temperature transmitter, a data acquisition module and a differential pressure alarm module, and the inner wall of the box door is provided with a flow meter secondary meter; a partition plate is arranged in the box body, the internal space of the box body is divided into two parts by the partition plate, a 4G network switch is arranged on the partition plate, and a lead-acid battery is arranged on a bottom plate of the box body; according to the utility model, the DC UPS module is adopted to replace an original AC UPS device, so that energy loss caused by conversion from UPS AC to DC is reduced, and the service time of battery power supply is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of meter boxes, in particular to a DC UPS system meter box. Background Art

[0002] The steam meter box is a collection of metering instruments and auxiliary equipment necessary for measuring steam. It usually has a steam flow meter secondary meter, battery, UPS, 24V switching power supply, 4G communication terminal, data conversion module and its secondary circuit, etc. The meter box can be installed in a hanging or floor-standing manner. The meter box is an indispensable part of the heat network system engineering. Because UPS equipment needs to dissipate heat, the meter box must have a ventilation louver, which will cause dust and humid air to enter the meter box, causing interference to the equipment in the meter box. Utility Model Content

[0003] The utility model aims to provide a DC UPS system meter box to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a DC UPS system metering box, comprising a box body, a box door, and a back plate, wherein the box body is hollow inside, an opening is arranged on one side of the box body, and the box door is installed on the side of the box opening by a hinge; the back plate is fixed to the side of the box body facing away from the box door by screws, and a surge lightning protector, an air switch circuit breaker, a DC UPS module, a temperature transmitter, a data acquisition module, and a differential pressure alarm module are installed on the back plate in sequence, and a flow meter secondary meter is arranged on the inner wall of the box door; a partition is arranged in the box body, a 4G network switch is arranged on the partition, and a lead-acid battery is arranged on the bottom plate of the box body.

[0005] Preferably, the flow meter secondary meter is connected to a field pressure transmitter, a field differential pressure transmitter, a temperature transmitter, a DC UPS module, and a 4G network switch; the 4G network switch is connected to a data acquisition module and a differential pressure alarm module; one end of the surge arrester is connected to a thermal power source entering the city power supply, and the other end is grounded; the temperature transmitter is connected to a field thermal resistor, and the differential pressure alarm module is connected to a field differential pressure transmitter.

[0006] Preferably, the air switch circuit breaker is provided with two groups, the upper end of one group is connected to the live wire and neutral wire entering the mains, and the lower end is connected to the live wire and neutral wire terminal of the DC UPS module; the upper end of the other group is connected to the bat terminal of the DC UPS module, and the lower end is connected to the terminal and connected to the lead-acid battery.

[0007] Preferably, the lead-acid battery is connected to a DC UPS module, and the DC UPS module is connected to a data acquisition module, a 4G network switch, and a differential pressure alarm module.

[0008] Preferably, wiring troughs are provided on the upper and side surfaces of the back panel, and the surge protector, air switch circuit breaker, DC UPS module, temperature transmitter, data acquisition module, and differential pressure alarm module are arranged on the guide rails on the surface of the back panel, and the connected cables are stored in the wiring troughs.

[0009] Preferably, an observation window is provided on the outside of the box door, and the observation window corresponds to the secondary meter of the flow meter; a handle is provided on one side of the box door, and lock holes are provided on the box door on the upper and lower sides of the handle, and a locking plate is provided in the box body to cooperate and pass through the lock hole.

[0010] Preferably, fixing plates are arranged on the upper and lower sides of the box body facing away from the box door, fixing holes are arranged in the fixing plates, and the fixing holes are arranged as waist-shaped holes.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adopts a DC UPS module to replace the original AC UPS equipment, directly supplies the 24V DC power of the lead-acid battery to the equipment in the box, reduces the energy loss caused by the lead-acid battery converting the 24V DC power into 220V AC power through the AC UPS equipment, and the external switching power supply converting the 220V AC power into 24V DC power, thereby extending the battery power supply use time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0014] Numbers in the figure: 1. Box body; 11. Partition; 12. Locking plate; 13. Fixing plate; 14. 4G network switch; 15. Lead-acid battery; 16. Fixing hole; 2. Box door; 21. Observation window; 22. Handle; 23. Locking hole; 3. Back panel; 31. Surge arrester; 32. Air switch circuit breaker; 33. DC UPS module; 34. Temperature transmitter; 35. Data acquisition module; 36. Differential pressure alarm module; 37. Wiring duct; 4. Flow meter secondary table. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] See also Figure 1-2 The utility model provides a technical solution: a DC UPS system metering box, comprising a box body 1, a box door 2, and a back plate 3. The box body 1 is hollow inside, and an opening is set on one side of the box body 1. The box door 2 is installed on the open side of the box body 1 through a hinge; the back plate 3 is fixed to the side of the box body 1 facing away from the box door 2 through a screw, and a surge lightning protector 31, an air switch circuit breaker 32, a DC UPS module 33, a temperature transmitter 34, a data acquisition module 35, and a differential pressure alarm module 36 are installed on the back plate 3 in sequence, and a flow meter secondary meter 4 is arranged on the inner wall of the box door 2; a partition 11 is arranged in the box body 1, a 4G network switch 14 is arranged on the partition 11, and a lead-acid battery 15 is arranged on the bottom plate of the box body 1.

[0019] Furthermore, the flow meter secondary meter 4 is connected to a field pressure transmitter, a field differential pressure transmitter, a temperature transmitter 34, a DC UPS module 33, and a 4G network switch 14; the 4G network switch 14 is connected to a data acquisition module 35 and a differential pressure alarm module 36; one end of the surge arrester 31 is connected to the thermal power entering the city power, and the other end is grounded; the temperature transmitter 34 is connected to a field thermal resistor, and the differential pressure alarm module 36 is connected to a field differential pressure transmitter.

[0020] Furthermore, the air switch circuit breaker 32 is provided with two groups, the upper end of one group is connected to the live wire and neutral wire entering the mains, and the lower end is connected to the live wire and neutral wire terminal of the DC UPS module 33; the upper end of the other group is connected to the bat terminal of the DC UPS module 33, and the lower end is connected to the terminal and connected to the lead-acid battery 15.

[0021] Furthermore, the lead-acid battery 15 is connected to a DC UPS module 33 , and the DC UPS module 33 is connected to a data acquisition module 35 , a 4G network switch 14 , and a differential pressure alarm module 36 .

[0022] Furthermore, wiring troughs 37 are provided on the upper side and the side of the back panel 3. The surge protector 31, the air switch circuit breaker 32, the DC UPS module 33, the temperature transmitter 34, the data acquisition module 35, and the differential pressure alarm module 36 are arranged on the guide rails on the surface of the back panel 3, and the connected cables are stored in the wiring trough 37.

[0023] Furthermore, an observation window 21 is provided on the outer side of the box door 2, and the observation window 21 corresponds to the flow meter secondary table 4; a handle 22 is provided on one side of the box door 2, and lock holes 23 are provided on the box door 2 on the upper and lower sides of the handle 22, and a locking plate 12 is provided in the box body 1 to cooperate with and pass through the lock hole 23.

[0024] Furthermore, the upper and lower sides of the box body 1 facing away from the box door 2 are provided with fixing plates 13 , and the fixing plates 13 are provided with fixing holes 16 , and the fixing holes 16 are configured as waist-shaped holes.

[0025] Working principle: the box body 1 is suspended on the wall through the fixing plate 13, the back plate 3 is installed with a detachable structure, and the box door 2 is locked by locking the locking piece 12, so as to ensure the safety inside the equipment.

[0026] The flow meter secondary table 4 is connected with a field pressure transmitter, a field differential pressure transmitter, a temperature transmitter 34, a DC UPS module 33, and a 4G network switch 14. The 4G network switch 14 is connected with a data acquisition module 35 and a differential pressure alarm module 36 to collect field temperature, pressure, and differential pressure data to calculate the instantaneous flow of steam and accumulate them; the 4G network switch 14 is connected with a data acquisition module 35 and a differential pressure alarm module 36 to provide wireless data communication, collect field data and transmit it to the server. The surge lightning protector 31 is connected to the thermal power entering the mains at one end, and the other end is grounded to protect the power supply safety of the metering box. The air switch circuit breaker 32 is provided with two groups, one of which is connected to the live wire and neutral wire entering the mains at the upper end, and the live wire and neutral wire terminals of the DC UPS module 33 at the lower end; the other group is connected to the bat terminal of the DC UPS module 33 at the upper end, and the lower end is connected to the terminal block and connected to the lead-acid battery 15 to control the mains channel and protect the circuit from overload, and control the lead-acid battery 15 channel and protect the circuit from overload.

[0027] The lead-acid battery 15 is connected to the DC UPS module 33, and the DC UPS module 33 is connected to the data acquisition module 35, the 4G network switch 14, and the differential pressure alarm module 36. The lead-acid battery 15 provides a 24V DC power supply, and the DC UPS module 33 converts the AC power into 24V DC power, providing a DC UPS function and a AC power judgment function.

[0028] The temperature transmitter 34 is connected to the field thermal resistor, converts the field thermal resistor resistance signal into a current signal and outputs it to the secondary meter; the data acquisition module 35 determines whether the city power is on or off, and the differential pressure alarm module 36 is connected to the field differential pressure transmitter to collect the current signal of the field differential pressure transmitter.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A DC UPS system meter box, characterized in that: The invention comprises a box body (1), a box door (2), and a back plate (3); the box body (1) is hollow inside, one side of the box body (1) is open, and the box door (2) is mounted on the open side of the box body (1) by means of a hinge; the back plate (3) is fixed to the side of the box body (1) facing away from the box door (2) by means of a screw, a surge lightning protector (31), an air switch circuit breaker (32), a DC UPS module (33), a temperature transmitter (34), a data acquisition module (35), and a differential pressure alarm module (36) are mounted on the back plate (3) in sequence, and a flow meter secondary meter (4) is mounted on the inner wall of the box door (2); a partition plate (11) is arranged inside the box body (1), a 4G network switch (14) is arranged on the partition plate (11), and a lead-acid battery (15) is arranged on the bottom plate of the box body (1).

2. A DC UPS system meter box according to claim 1, characterized in that: The flow meter secondary meter (4) is connected to an on-site pressure transmitter, an on-site differential pressure transmitter, a temperature transmitter (34), a DC UPS module (33), and a 4G network switch (14); the 4G network switch (14) is connected to a data acquisition module (35) and a differential pressure alarm module (36); one end of the surge arrester (31) is connected to a thermal power source entering the city power supply, and the other end is grounded; the temperature transmitter (34) is connected to an on-site thermal resistor, and the differential pressure alarm module (36) is connected to an on-site differential pressure transmitter.

3. A DC UPS system meter box according to claim 1, characterized in that: The air switch circuit breaker (32) is provided with two groups, the upper end of one group is connected to the live wire and the neutral wire entering the mains, and the lower end is connected to the live wire and the neutral wire terminal of the DC UPS module (33); the upper end of the other group is connected to the bat terminal of the DC UPS module (33), and the lower end is connected to the terminal block and connected to the lead-acid battery (15).

4. A DC UPS system meter box according to claim 1, characterized in that: The lead-acid battery (15) is connected to a DC UPS module (33), and the DC UPS module (33) is connected to a data acquisition module (35), a 4G network switch (14), and a differential pressure alarm module (36).

5. A DC UPS system meter box according to claim 1, characterized in that: The upper side and the side of the back plate (3) are both provided with wiring troughs (37); the surge arrester (31), the air switch circuit breaker (32), the DC UPS module (33), the temperature transmitter (34), the data acquisition module (35), and the differential pressure alarm module (36) are arranged on the guide rails on the surface of the back plate (3); and the connected cables are stored in the wiring troughs (37).

6. A DC UPS system meter box according to claim 1, characterized in that: An observation window (21) is arranged on the outside of the box door (2), and the observation window (21) corresponds to the secondary flow meter (4); a handle (22) is arranged on one side of the box door (2), and lock holes (23) are arranged on the box door (2) at the upper and lower sides of the handle (22); a lock sheet (12) is arranged in the box body (1) and cooperates to pass through the lock hole (23).

7. A DC UPS system meter box according to claim 1, characterized in that: The upper and lower sides of the box body (1) facing away from the box door (2) are provided with fixing plates (13), and the fixing plates (13) are provided with fixing holes (16), and the fixing holes (16) are configured as waist-shaped holes.

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