Energy-saving control device for refrigeration host

Abstract

The utility model discloses refrigeration host computer energy -conserving control equipment, including base, box, refrigerant return gas pipe and a plurality of mechanics linkage components. The box is located on the base, and the refrigerant return gas pipe one end is connected to the float ball pressure sensing cylinder, and the cylinder is equipped with the float ball and the guide rod structure for responding to the refrigerant return gas pressure change. The float ball guide rod linkage first fixed ring, linkage pull rod, a plurality of cross bars and vertical rods, drive first cross board and valve rod realize to the opening and close control of valve body in pipeline, adjust the refrigerant flow. The system still includes with the linkage pull rod links to each other's first pull rod, spring, damper and slow -opening device for slowing down the impact in the control process, and the compressor, pipeline plays the buffering protection function. The device simple structure, relies on mechanical action to realize the refrigerant regulation and slow -opening control, need not electronic component, possesses energy -conserving, maintenance -free, the strong anti -interference ability etc. advantage, is applicable to a variety of industrial refrigeration scene.

Description

Technical Field

[0001] This invention relates to the field of energy-saving control technology for refrigeration equipment, specifically an energy-saving control device for a refrigeration unit. Background Technology

[0002] Energy-saving control equipment for refrigeration units is a throttling and control mechanism that operates between the refrigeration unit and the refrigerant circulation system. It is an energy-saving control device that integrates energy-saving regulation, load response, and buffer protection. Currently, refrigeration units are widely used in central air conditioning systems, industrial cooling, cold chain transportation, and other fields, and their operating energy consumption accounts for a high proportion of the total energy consumption of the entire refrigeration system. Most existing energy-saving control methods rely on electronic sensors, resulting in complex structures, high failure rates, and slow response times. Utility Model Content

[0003] The purpose of this invention is to solve at least one of the technical problems existing in the prior art, providing an energy-saving control device for refrigeration units. This device uses a float-type pressure sensor to detect the refrigerant return gas pressure. The float automatically rises and falls with the system load, driving a linkage rod to adjust the opening of the valve stem and valve body, achieving on-demand cooling and automatic throttling, significantly reducing energy consumption. The mechanical linkage mechanism, through direct physical transmission, offers a faster response, eliminating the need for signal acquisition and delayed processing, thus improving adjustment accuracy and immediacy. Through the cooperation of the linkage rod, spring, damper, and slow-start device, the rod's movement can be delayed during sudden load changes, providing buffer protection for the compressor and piping.

[0004] This utility model also provides an energy-saving control device for the above-mentioned refrigeration unit, comprising: a base, a housing fixedly connected to the upper surface of the base, a refrigerant return pipe fixedly connected to the left surface of the housing, a float pressure sensing cylinder fixedly connected to the right surface of the refrigerant return pipe, a first float slidably connected to the inner surface of the float pressure sensing cylinder, a float guide rod fixedly connected to the upper surface of the first float, a first fixing ring fixedly connected to the outer surface of the float guide rod, a linkage rod rotatably connected to the outer surface of the first fixing ring, a first horizontal bar rotatably connected to the end of the linkage rod, a first vertical bar fixedly connected to the outer surface of the first horizontal bar, and a fixed lower surface of the first vertical bar. The linkage rod is connected to a first support base. A second crossbar is rotatably connected to the outer surface of the linkage rod. A second vertical rod is rotatably connected to the lower surface of the second crossbar. A first horizontal plate is fixedly connected to the end of the linkage rod. A valve stem is fixedly connected to the upper surface of the first horizontal plate. A pipe is fixedly connected to the bottom surface of the housing. A valve body is fixedly connected to the outer surface of the pipe. The valve stem and valve body are slidably connected. A first pull rod is rotatably connected to the outer surface of the linkage rod. A spring is fixedly connected to the lower surface of the first pull rod. A damper is fixedly connected to the inner surface of the spring. A soft-start device is fixedly connected to the lower surface of the spring. An input shaft is fixedly connected to the lower surface of the soft-start device.

[0005] According to the energy-saving control device for the refrigeration unit provided by this utility model, a support leg is fixedly connected to the lower surface of the base, and a support pad is provided on the lower surface of the support leg. These components can better secure the entire control device, ensuring its normal operation.

[0006] According to the energy-saving control device for the refrigeration unit provided by this utility model, a first mounting port is fixedly connected to the rear surface of the housing, and an observation window is fixedly connected to the inner surface of the first mounting port. These components facilitate observation and control of the device.

[0007] According to the energy-saving control device for the refrigeration unit provided by this utility model, a closed door is rotatably connected to the front surface of the housing, and a handle is fixedly connected to the outer surface of the closed door. These components facilitate opening the control device and inspecting / maintaining the parts.

[0008] According to the energy-saving control device for the refrigeration unit provided by this utility model, a metal fixing ring is fixedly connected to the outer surface of the second vertical rod, and a metal bracket is fixedly connected to the lower surface of the metal fixing ring. These components prevent dust accumulation on the base surface, thus avoiding impact on the machine.

[0009] According to the energy-saving control device for the refrigeration unit provided by this utility model, an elastic air cushion is fixedly connected to the upper surface of the float pressure-sensing cylinder. These components prevent the float from going too low and causing damage to the float cylinder from the float rod.

[0010] According to the energy-saving control device for a refrigeration unit provided by this utility model, a triangular bracket is fixedly connected to the rear surface of the valve body, and the triangular bracket is fixedly connected to the base. These components facilitate the fixing of the valve body and stabilize the device.

[0011] According to the energy-saving control device for the refrigeration unit provided by this utility model, a second fixing ring is fixedly connected to the outer surface of the casing, and a brush is provided on the inner surface of the second fixing ring. These components allow for convenient and immediate cleaning of dust generated inside the equipment.

[0012] Compared with existing technologies, this energy-saving control device for the refrigeration unit, through the cooperation of a float pressure sensing cylinder, float, linkage rod, and valve plate, uses the float pressure sensing cylinder to sense pressure changes in the refrigerant return pipe in real time, reflecting load changes. The rise and fall of the float, via the guide rod, linkage rod, and valve plate, drives the throttling valve rod to automatically adjust the flow rate. Under low load, it reduces refrigerant flow and lowers energy consumption, while under high load, it automatically opens to ensure cooling capacity. Through the cooperation of the linkage rod, spring, damper, and slow-start device, the linkage rod action can be delayed during sudden load changes, providing buffer protection for the compressor and pipelines, reducing electronic failure rate, and improving equipment stability and service life. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a top view of the energy-saving control device for the refrigeration unit of this utility model;

[0015] Figure 2 This is a left-side structural view of the energy-saving control device for the refrigeration unit of this utility model;

[0016] Figure 3 This is a bottom view of the energy-saving control device for the refrigeration unit of this utility model;

[0017] Figure 4 This is a rear view structural diagram of the energy-saving control device for the refrigeration unit of this utility model.

[0018] Legend:

[0019] 1. Base; 2. Housing; 3. Refrigerant return pipe; 4. Float pressure sensing cylinder; 5. First float; 6. Float guide rod; 7. First fixing ring; 8. Linkage rod; 9. First horizontal bar; 10. First vertical bar; 11. First support base; 12. Second horizontal bar; 13. Second vertical bar; 14. First horizontal plate; 15. Valve stem; 16. Pipe; 17. Valve body; 18. First pull rod; 19. Spring; 20. Damper; 21. Soft start device; 22. Input shaft; 23. Support leg; 24. Support pad; 25. First mounting port; 26. Observation window; 27. Closed door; 28. Handle; 29. ​​Metal fixing ring; 30. Metal bracket; 31. Elastic air cushion; 32. Triangular bracket; 33. Second fixing ring; 34. Brush. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Reference Figures 1-4This utility model embodiment of the energy-saving control device for a refrigeration unit includes: a base 1, a housing 2 fixedly connected to the upper surface of the base 1, a first mounting port 25 fixedly connected to the rear surface of the housing 2, and an observation window 26 fixedly connected to the inner surface of the first mounting port 25. A closed door 27 is rotatably connected to the front surface of the housing 2, and a handle 28 is fixedly connected to the outer surface of the closed door 27. A refrigerant return pipe 3 is fixedly connected to the left surface of the housing 2, a second fixing ring 33 is fixedly connected to the outer surface of the housing 2, a brush 34 is provided on the inner surface of the second fixing ring 33, and a float pressure sensing cylinder 4 is fixedly connected to the right surface of the refrigerant return pipe 3, with an elastic air cushion 31 fixedly connected to the upper surface of the float pressure sensing cylinder 4. A first float 5 is slidably connected to the inner surface of the float pressure cylinder 4. A float guide rod 6 is fixedly connected to the upper surface of the first float 5. A first fixing ring 7 is fixedly connected to the outer surface of the float guide rod 6. A linkage rod 8 is rotatably connected to the outer surface of the first fixing ring 7. A first horizontal bar 9 is rotatably connected to the end of the linkage rod 8. A first vertical bar 10 is fixedly connected to the outer surface of the first horizontal bar 9. A first support seat 11 is fixedly connected to the lower surface of the first vertical bar 10. A second horizontal bar 12 is rotatably connected to the outer surface of the linkage rod 8. A second vertical bar 13 is rotatably connected to the lower surface of the second horizontal bar 12. A metal fixing ring 29 is fixedly connected to the outer surface of the second vertical bar 13. A metal bracket 30 is fixedly connected to the lower surface of the metal fixing ring 29. The first horizontal plate 14 is fixedly connected to the end of the linkage rod 8. The valve stem 15 is fixedly connected to the upper surface of the first horizontal plate 14. The pipe 16 is fixedly connected to the bottom surface of the box 2. The valve body 17 is fixedly connected to the outer surface of the pipe 16. The triangular bracket 32 ​​is fixedly connected to the rear surface of the valve body 17. The triangular bracket 32 ​​is fixedly connected to the base 1. The valve stem 15 and the valve body 17 are slidably connected.

[0022] A housing 2 is fixedly connected to the upper surface of the base 1. A refrigerant return pipe 3 is fixedly connected to the left side of the housing 2, and a float pressure sensing cylinder 4 is fixedly connected to the right side of the refrigerant return pipe 3. A first float 5 is slidably connected inside the float pressure sensing cylinder 4. A float guide rod 6 is fixedly connected to the upper part of the first float 5. A first fixing ring 7 is provided on the outside of the float guide rod 6. A linkage rod 8 is rotatably connected to the outside of the first fixing ring 7. The end of the linkage rod 8 is rotatably connected to a first horizontal rod 9 and a first vertical rod 10 in sequence. The lower end of the first vertical rod 10 is fixed to the first support base 11. A second horizontal rod 12 is also rotatably connected to the middle of the linkage rod 8. The lower end of the second horizontal rod 12 is rotatably connected to a second vertical rod 13. A first horizontal plate 14 is fixedly connected to the end of the linkage rod 8. A valve stem 15 is fixedly connected to the first horizontal plate 14. The valve stem 15 slides with a valve body 17 fixed to the outer surface of the pipe 16, thereby realizing load sensing-driven throttling regulation.

[0023] The outer surface of the linkage rod 8 is rotatably connected to the first rod 18. The lower surface of the first rod 18 is fixedly connected to the spring 19. The inner surface of the spring 19 is fixedly connected to the damper 20. The lower surface of the spring 19 is fixedly connected to the soft-start device 21. The lower surface of the soft-start device 21 is fixedly connected to the input shaft 22. The lower surface of the base 1 is fixedly connected to the support leg 23. The lower surface of the support leg 23 is provided with the support pad 24.

[0024] Specifically, a first pull rod 18 is rotatably connected to the outer surface of the linkage pull rod 8. A spring 19 is fixedly connected to the lower surface of the first pull rod 18, and a damper 20 is fixedly connected to the inner surface of the spring 19 to buffer the displacement changes during the movement of the pull rod. A slow-start device 21 is fixedly connected to the lower surface of the spring 19, and an input shaft 22 is fixedly connected to the lower surface of the slow-start device 21. The input shaft 22 is used to link with the power components of the compressor to realize the slow start and stop of the system and shock suppression, thereby improving the stability and safety of the overall machine operation.

[0025] Working Principle: This device senses pressure changes in the refrigerant return pipe 3 via a float-sensing cylinder 4. When the system load increases, the return pressure rises, causing the float 5 to rise accordingly. This, in turn, moves the float guide rod 6 and the first fixed ring 7 upwards, which in turn drives the horizontal rod 9, vertical rod 10, and valve stem 15 to move via the linkage rod 8, opening the valve body 17 and increasing the refrigerant flow to meet cooling demands. Conversely, when the load decreases, the float sinks, and the valve stem 15 closes, reducing refrigerant supply and achieving energy savings. The first linkage rod 18, connected to the linkage rod 8, forms a buffer structure through a spring 19 and a damper 20. Combined with the slow-start device 21 and the input shaft 22, this effectively delays start-stop response, avoids system shock, and provides buffer protection for the compressor and piping, achieving stable control and improved energy efficiency.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A refrigeration unit energy-saving control device, characterized in that, include: A base (1) is fixedly connected to a housing (2) on its upper surface. A refrigerant return pipe (3) is fixedly connected to the left surface of the housing (2). A float pressure sensing cylinder (4) is fixedly connected to the right surface of the refrigerant return pipe (3). A first float (5) is slidably connected to the inner surface of the float pressure sensing cylinder (4). A float guide rod (6) is fixedly connected to the upper surface of the first float (5). A first fixing ring (7) is fixedly connected to the outer surface of the float guide rod (6). A linkage rod (8) is rotatably connected to the outer surface of the first fixing ring (7). A first crossbar (9) is rotatably connected to the end of the linkage rod (8). 9) The outer surface is fixedly connected to the first vertical rod (10), the lower surface of the first vertical rod (10) is fixedly connected to the first support seat (11), the outer surface of the linkage rod (8) is rotatably connected to the second horizontal rod (12), the lower surface of the second horizontal rod (12) is rotatably connected to the second vertical rod (13), the end of the linkage rod (8) is fixedly connected to the first horizontal plate (14), the upper surface of the first horizontal plate (14) is fixedly connected to the valve stem (15), the bottom surface of the box (2) is fixedly connected to the pipe (16), the outer surface of the pipe (16) is fixedly connected to the valve body (17), and the valve stem (15) and the valve body (17) are slidably connected; The outer surface of the linkage rod (8) is rotatably connected to a first rod (18), the lower surface of the first rod (18) is fixedly connected to a spring (19), the inner surface of the spring (19) is fixedly connected to a damper (20), the lower surface of the spring (19) is fixedly connected to a slow-start device (21), and the lower surface of the slow-start device (21) is fixedly connected to an input shaft (22).

2. The energy-saving control device for the refrigeration unit according to claim 1, characterized in that, The base (1) is fixedly connected to a support leg (23), and a support pad (24) is provided on the lower surface of the support leg (23).

3. The energy-saving control device for the refrigeration unit according to claim 1, characterized in that, The rear surface of the housing (2) is fixedly connected to a first mounting port (25), and the inner surface of the first mounting port (25) is fixedly connected to an observation window (26).

4. The energy-saving control device for the refrigeration unit according to claim 1, characterized in that, The front surface of the box (2) is rotatably connected to a closed door (27), and the outer surface of the closed door (27) is fixedly connected to a handle (28).

5. The energy-saving control device for the refrigeration unit according to claim 1, characterized in that, A metal fixing ring (29) is fixedly connected to the outer surface of the second vertical rod (13), and a metal bracket (30) is fixedly connected to the lower surface of the metal fixing ring (29).

6. The energy-saving control device for the refrigeration unit according to claim 1, characterized in that, An elastic air cushion (31) is fixedly connected to the upper surface of the float pressure cylinder (4).

7. The energy-saving control device for the refrigeration unit according to claim 1, characterized in that, A triangular bracket (32) is fixedly connected to the rear surface of the valve body (17), and the triangular bracket (32) is fixedly connected to the base (1).

8. The energy-saving control device for the refrigeration unit according to claim 1, characterized in that, A second fixing ring (33) is fixedly connected to the outer surface of the box (2), and a brush (34) is provided on the inner surface of the second fixing ring (33).

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