Heat supply energy-saving device cooperatively controlled by PLC (Programmable Logic Controller) and frequency converter

Abstract

The utility model discloses a heat supply energy-saving device cooperatively controlled by a PLC and a frequency converter, and belongs to the technical field of heat supply energy-saving devices. Comprising a heat supply shell and a wall body, a right-angle plate is fixedly connected to the face, close to the wall body, of the heat supply shell, a mounting plate is fixedly mounted on the face, away from the heat supply shell, of the right-angle plate, four box bodies are fixedly connected to the face, close to the wall body, of the mounting plate, and rectangular grooves matched with the box bodies are formed in the wall body; through cooperation of a box body, a rectangular groove and a fixing mechanism, after the face, away from the mounting plate, of the box body is inserted into the rectangular groove, a limiting rod can be inserted into a limiting hole only by rotating a rotary knob in the forward direction, so that the mounting plate can be fixed, and at the moment, mounting of the heat supply device is completed; the heat supply device can be unfixed only by reversely rotating the knob, and the whole disassembly and assembly process is very convenient, so that the maintenance efficiency of the heat supply device can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of heating energy-saving device technology, and in particular to a heating energy-saving device controlled by a PLC and a frequency converter. Background Technology

[0002] In today's society, with economic development and improved living standards, heating systems are increasingly widely used in residential and industrial production. To optimize energy efficiency in heating systems, automation control technology has been gradually introduced. Programmable Logic Controllers (PLCs), with their powerful logic control capabilities, reliability, and flexibility, are widely used in industrial automation. Variable frequency drives (VFDs), on the other hand, can precisely adjust motor speeds according to load demands, thereby achieving energy-efficient motor operation. Applying PLCs and VFDs in conjunction with heating systems allows for real-time adjustment of pump and fan speeds based on actual heat load changes, ensuring the heating system's output power matches actual demand and effectively reducing energy consumption.

[0003] A heating energy-saving device for public buildings, with announcement number CN216281677U, includes an inlet pipe, a first main valve embedded in the surface of one end of the inlet pipe, a first pipe welded to the bottom of the inlet pipe, a solenoid valve embedded in the surface of the first pipe, a heating pipe welded to the free end of the first pipe, outlet pipes welded to both ends of the heating pipe, and a second main valve embedded in the surface of one end of the outlet pipe.

[0004] The aforementioned device can increase the contact area with air through heat sinks, thereby improving the heating effect. However, the device is fixed to the wall with screws. Since the heating device is usually fixed outside, the screws will oxidize and rust after being exposed to wind and sun for a long time, making the disassembly and maintenance of the heating device inconvenient. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that the existing technology fixes the heating device to the wall with screws, which makes the disassembly and maintenance of the heating device inconvenient. The present invention proposes a heating energy-saving device that is controlled by PLC and frequency converter in a coordinated manner.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A heating energy-saving device controlled by a PLC and a frequency converter includes a heating shell and a wall. A right-angle plate is fixedly connected to the side of the heating shell near the wall. An mounting plate is fixedly installed on the side of the right-angle plate away from the heating shell. Four boxes are fixedly connected to the side of the mounting plate near the wall. The interior of the wall has rectangular slots that fit the boxes, and the rectangular slots correspond one-to-one with the boxes. The side of the box away from the mounting plate is inserted into the interior of the rectangular slot. A fixing mechanism is provided on the mounting plate.

[0008] Preferably, the fixing mechanism includes a U-shaped plate fixedly connected to the outer surface of the mounting plate, and a bidirectional lead screw is rotatably installed inside the U-shaped plate. The outer surface of the bidirectional lead screw is threaded with two symmetrical threaded plates, and both threaded plates are slidably connected to the outer surface of the U-shaped plate.

[0009] Preferably, a knob is fixedly connected to one end of the bidirectional lead screw.

[0010] Preferably, rectangular columns are fixedly connected to the upper and bottom surfaces of the two threaded plates, connecting rods are fixedly connected to the outer surfaces of the four rectangular columns, and movable plates are fixedly connected to the other ends of the four connecting rods. The four movable plates are slidably connected to the interiors of the four boxes respectively.

[0011] Preferably, the outer surfaces of the four movable plates are all fixedly connected with limit rods, and the interior of the wall is provided with limit holes that are adapted to the limit rods. The end of the limit rod away from the movable plate slides through the box and is inserted into the interior of the limit hole.

[0012] Preferably, a water inlet pipe is fixedly connected to one side of the heating shell, and a first valve is installed on the water inlet pipe. A water outlet pipe and a pressure relief pipe are fixedly connected to the other side of the heating shell, and a second valve is installed on the water outlet pipe and a third valve is installed on the pressure relief pipe.

[0013] Preferably, a set of equidistant heat sinks are installed on the outer surface of the heating shell.

[0014] Compared with the prior art, this utility model provides a heating energy-saving device that uses PLC and frequency converter for coordinated control, which has the following beneficial effects.

[0015] This utility model utilizes the cooperation between the box body, the rectangular groove, and the fixing mechanism. After inserting the side of the box body away from the mounting plate into the rectangular groove, simply turning the knob in the forward direction will insert the limiting rod into the limiting hole, thereby fixing the mounting plate. At this point, the installation of the heating device is complete. When disassembling the heating device, simply turning the knob in the reverse direction will release the fixing of the heating device. The entire disassembly and assembly process is very convenient, thus greatly improving the maintenance efficiency of the heating device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a structural schematic diagram of the hidden wall of this utility model.

[0018] Figure 3 This is a schematic diagram showing the connection between the movable plate and the limiting rod of this utility model.

[0019] Figure 4 This is a structural schematic diagram of the wall structure of this utility model.

[0020] In the picture:

[0021] 1. Heating shell; 2. Wall; 3. Right angle plate; 4. Mounting plate; 5. Box body; 6. Rectangular groove; 7. U-shaped plate; 8. Two-way threaded rod; 9. Threaded plate; 10. Rectangular column; 11. Moving plate; 12. Limiting rod; 13. Limiting hole; 14. Water inlet pipe; 15. Water outlet pipe; 16. Pressure relief pipe; 17. Heat sink; 18. Connecting rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 A heating energy-saving device controlled by a PLC and a frequency converter includes a heating shell 1 and a wall 2. A water inlet pipe 14 is fixedly connected to one side of the heating shell 1, and a first valve is installed on the water inlet pipe 14. A water outlet pipe 15 and a pressure relief pipe 16 are fixedly connected to the other side of the heating shell 1, and a second valve is installed on the water outlet pipe 15. A third valve is installed on the pressure relief pipe 16. A set of equidistantly arranged heat dissipation fins 17 are installed on the outer surface of the heating shell 1. The water inlet pipe 14 and the water outlet pipe 15 are connected to the municipal heating pipe. By opening the first valve and the second valve, hot water can flow through the heating pipe to achieve energy-saving heating. Closing the first valve and the second valve can end the heating. By setting the heat dissipation fins 17, the contact area with air can be increased, thereby improving the heating effect.

[0024] A right-angle plate 3 is fixedly connected to the side of the heating shell 1 closest to the wall 2. An installation plate 4 is fixedly installed on the side of the right-angle plate 3 away from the heating shell 1. Four boxes 5 are fixedly connected to the side of the installation plate 4 closest to the wall 2. A rectangular groove 6 is opened inside the wall 2 to fit the box 5. The rectangular groove 6 corresponds one-to-one with the box 5. The side of the box 5 away from the installation plate 4 is inserted into the inside of the rectangular groove 6. There are four boxes 5 and four rectangular grooves 6.

[0025] The mounting plate 4 is equipped with a fixing mechanism, which includes a U-shaped plate 7 fixedly connected to the outer surface of the mounting plate 4. A bidirectional lead screw 8 is rotatably mounted inside the U-shaped plate 7. Two symmetrical threaded plates 9 are threadedly connected to the outer surface of the bidirectional lead screw 8. Both threaded plates 9 are slidably connected to the outer surface of the U-shaped plate 7. A knob is fixedly connected to one end of the bidirectional lead screw 8. When the knob is turned in the forward direction, the knob can drive the bidirectional lead screw 8 to rotate in the forward direction. The forward rotation of the bidirectional lead screw 8 can drive the two threaded plates 9 to move horizontally away from each other. When the knob is turned in the reverse direction, the knob can drive the bidirectional lead screw 8 to rotate in the reverse direction. The reverse rotation of the bidirectional lead screw 8 can drive the two threaded plates 9 to move horizontally closer to each other.

[0026] Rectangular columns 10 are fixedly connected to the upper and bottom surfaces of the two threaded plates 9. Connecting rods 18 are fixedly connected to the outer surfaces of the four rectangular columns 10. Movable plates 11 are fixedly connected to the other ends of the four connecting rods 18. The four movable plates 11 are slidably connected to the interiors of the four boxes 5. Limiting rods 12 are fixedly connected to the outer surfaces of the four movable plates 11. Limiting holes 13 that match the limiting rods 12 are opened inside the wall 2. The end of the limiting rod 12 away from the movable plate 11 slides through the box 5 and is inserted into the limiting hole 13. When the box 5 is pushed into the rectangular groove 6 to the maximum extent, the limiting rod 12 and the limiting hole 13 are aligned. Then, by controlling the bidirectional lead screw 8 to rotate forward, the threaded plate 9 will drive the moving plate 11 and the limiting rod 12 to move towards the limiting hole 13. Thus, the end of the limiting rod 12 away from the moving plate 11 can be inserted into the inside of the limiting hole 13, thereby fixing the mounting plate 4. At this point, the installation of the heating device is completed. By controlling the bidirectional lead screw 8 to rotate in the reverse direction, the threaded plate 9 will drive the moving plate 11 and the limiting rod 12 to move away from the limiting hole 13. When the limiting rod 12 is completely removed from the inside of the limiting hole 13, the fixing of the mounting plate 4 can be released. At this point, the heating device can be removed from the wall 2 for maintenance, which is very convenient.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heating energy-saving device controlled by a PLC and a frequency converter, comprising a heating shell (1) and a wall (2), characterized in that: A right-angle plate (3) is fixedly connected to the side of the heating shell (1) near the wall (2). An installation plate (4) is fixedly installed on the side of the right-angle plate (3) away from the heating shell (1). Four boxes (5) are fixedly connected to the side of the installation plate (4) near the wall (2). A rectangular groove (6) adapted to the box (5) is opened inside the wall (2), and the rectangular groove (6) corresponds to the box (5) one by one. The side of the box (5) away from the installation plate (4) is inserted into the inside of the rectangular groove (6). A fixing mechanism is provided on the installation plate (4).

2. The heating energy-saving device with PLC and frequency converter coordinated control according to claim 1, characterized in that, The fixing mechanism includes a U-shaped plate (7) fixedly connected to the outer surface of the mounting plate (4). A bidirectional lead screw (8) is rotatably installed inside the U-shaped plate (7). Two symmetrical threaded plates (9) are threadedly connected to the outer surface of the bidirectional lead screw (8). Both threaded plates (9) are slidably connected to the outer surface of the U-shaped plate (7).

3. A heating energy-saving device with PLC and frequency converter coordinated control according to claim 2, characterized in that, A knob is fixedly connected to one end of the bidirectional lead screw (8).

4. A heating energy-saving device with PLC and frequency converter coordinated control according to claim 2, characterized in that, Rectangular columns (10) are fixedly connected to the upper and lower surfaces of the two threaded plates (9), and connecting rods (18) are fixedly connected to the outer surfaces of the four rectangular columns (10). The other ends of the four connecting rods (18) are fixedly connected to movable plates (11), and the four movable plates (11) are slidably connected to the interiors of the four boxes (5).

5. A heating energy-saving device with PLC and frequency converter coordinated control according to claim 4, characterized in that, Limiting rods (12) are fixedly connected to the outer surfaces of the four movable plates (11). The wall (2) has a limiting hole (13) that matches the limiting rod (12). The end of the limiting rod (12) away from the movable plate (11) slides through the box (5) and is inserted into the limiting hole (13).

6. A heating energy-saving device with PLC and frequency converter coordinated control according to claim 1, characterized in that, A water inlet pipe (14) is fixedly connected to one side of the heating shell (1), and a first valve is installed on the water inlet pipe (14). A water outlet pipe (15) and a pressure relief pipe (16) are fixedly connected to the other side of the heating shell (1), and a second valve is installed on the water outlet pipe (15) and a third valve is installed on the pressure relief pipe (16).

7. A heating energy-saving device with PLC and frequency converter coordinated control according to claim 6, characterized in that, A set of equidistant heat sinks (17) are installed on the outer surface of the heating shell (1).

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