Quick-assembly type refrigerant filling and recycling integrated device

Abstract

The utility model relates to the technical field of power generation systems, in particular to a fast-assembly type refrigerant filling and recycling integrated device which comprises a flat car, a liquid storage tank is arranged at the top of the flat car, the bottom of the liquid storage tank is connected with a filling pump through a conveying pipeline, and the output end of the filling pump is connected to a generator set through a pipeline. A liquid viewing mirror is installed on the outer wall of one side of the liquid storage tank, and rollers are installed at the bottom of the flat car. According to the fast-assembly type refrigerant filling and recycling integrated device, due to the design of the liquid sight glass and the scale marks installed on the liquid storage tank, an operator can visually and accurately read the liquid level of a working medium in the liquid storage tank, and therefore the amount of working medium filled into or extracted from an ORC generator set is accurately controlled; and the system operation problem caused by too much or too little filling of the working medium is avoided. According to the device, the working medium of the ORC generator set can be finely adjusted, it is ensured that the system always operates in an efficient and stable interval, the power generation efficiency and the system stability are improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of power generation system technology, and more specifically, to a quick-installation integrated refrigerant filling and recovery device. Background Technology

[0002] In the current energy utilization field, Organic Rankine Cycle (ORC) power generation technology, as a highly efficient waste heat recovery power generation method, is gradually gaining widespread attention. Unlike traditional waste heat power generation systems that use water as the working fluid, ORC power generation systems employ organic working fluids with lower boiling points (such as R245fa, with a boiling point of 15.3℃ at normal pressure). This allows the system to operate effectively in low-grade waste heat environments below 250℃, thereby achieving efficient recovery and conversion of waste heat resources. This technology not only significantly improves the utilization rate of waste heat resources and reduces waste emissions, but also converts low-grade waste heat into high-quality electricity, facilitating long-distance energy transmission and secondary utilization. It is of great significance for reducing traditional energy consumption and greenhouse gas emissions.

[0003] However, despite the numerous advantages of ORC power generation technology, the filling and recovery of its working fluid face some challenges in practical applications. Because organic working fluids have low boiling points, are easily evaporated, and are gaseous at room temperature, their procurement costs are high, and they typically require large storage tanks for transportation. When ORC generator sets need to add working fluid, the traditional method involves adding it via a working fluid pump and relying on a weighbridge for measurement. This process often requires forklift assistance, making it not only cumbersome but also labor-intensive.

[0004] Furthermore, the quality of the working fluid filling in an ORC generator set directly impacts the system's operational performance. Overfilling can lead to excessively high system pressure, while underfilling can cause system instability. Therefore, precise adjustment of the working fluid filling amount is typically required to ensure efficient and stable system operation. However, in actual operation, due to factors such as working fluid leakage, frequent replenishment of the working fluid is often necessary, which not only increases workload but also consumes considerable time. Utility Model Content

[0005] The purpose of this utility model is to provide a fast-loading integrated refrigerant filling and recovery device to solve the problem mentioned in the background art that the traditional method of adding refrigerant is through a working fluid pump and relies on a weighbridge to measure the weight. This process often requires the cooperation of a forklift, which is not only cumbersome to operate, but also involves a large amount of work.

[0006] To achieve the above objectives, this utility model provides a quick-loading refrigerant filling and recycling integrated device, including a flatbed truck. A liquid storage tank is installed on the top of the flatbed truck, and a filling pump is connected to the bottom of the liquid storage tank through a delivery pipeline. The output end of the filling pump is connected to a generator set through a pipeline. A sight glass is installed on one outer wall of the liquid storage tank, and rollers are installed on the bottom of the flatbed truck.

[0007] Preferably, a glass plate is mounted on the front of the sight glass, and a scale line is provided on one side of the glass plate.

[0008] Preferably, the top of the liquid storage tank is equipped with a first connector for liquid inlet, and the bottom of the liquid storage tank is equipped with a second connector for liquid outlet.

[0009] Preferably, a third connector is installed at one end of the output pipeline of the filling pump.

[0010] Preferably, the delivery pipeline is equipped with a first branch pipe and a second branch pipe.

[0011] Preferably, a third directional valve is installed on the first branch pipe, and a fourth directional valve is installed on the second branch pipe.

[0012] Preferably, a first reversing valve and a second reversing valve are installed on the conveying pipeline, the first reversing valve and the third reversing valve are connected in series, and the second reversing valve and the fourth reversing valve are connected in series.

[0013] Preferably, the input end of the filling pump is connected to the pipeline between the first reversing valve and the third reversing valve, and the output end of the filling pump is connected to the pipeline between the second reversing valve and the fourth reversing valve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this quick-installation refrigerant charging and recovery integrated device, the sight glass and scale design installed on the liquid storage tank allow operators to intuitively and accurately read the working fluid level in the storage tank, thereby precisely controlling the amount of working fluid charged or extracted to the ORC generator set and avoiding system operation problems caused by too much or too little working fluid.

[0016] This device enables fine-tuning of the working fluid in ORC generator sets, ensuring the system always operates within a high-efficiency and stable range, thus improving power generation efficiency and system stability while reducing maintenance costs. By incorporating multiple reversing valves connected in series, this device can flexibly switch the flow direction of the working fluid, enabling rapid switching between filling and recovery functions, thereby enhancing operational flexibility and convenience.

[0017] This device uses a small storage tank and working fluid pump, which reduces procurement and transportation costs compared to traditional large storage tanks and complex filling systems, while also facilitating on-site storage and management. The capacity of the storage tank can be selected according to the specific needs of the ORC generator set, enabling the device to adapt to generator sets of different sizes and improving its practicality and applicability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the viewing mirror in this utility model;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention;

[0021] The meanings of the labels in the diagram are as follows:

[0022] 1. Flatbed truck; 11. Third connector; 2. Storage tank; 21. First connector; 22. Second connector; 3. Sight glass; 31. Glass plate; 32. Scale mark; 4. Delivery pipeline; 41. First directional valve; 42. Second directional valve; 43. First branch pipe; 431. Third directional valve; 44. Second branch pipe; 441. Fourth directional valve; 5. Filling pump; 6. Generator set. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides a quick-loading integrated refrigerant filling and recovery device, such as... Figures 1-3 As shown, the device includes a flatbed cart 1, with a liquid storage tank 2 mounted on top. A filling pump 5 is connected to the bottom of the liquid storage tank 2 via a delivery pipeline 4. The output of the filling pump 5 is connected to a generator set 6 via a pipeline. A sight glass 3 is installed on one outer wall of the liquid storage tank 2, and rollers are installed on the bottom of the flatbed cart 1. This invention integrates key components such as the liquid storage tank 2 and the filling pump 5 onto the flatbed cart 1, enabling rapid movement and deployment of the equipment. This design allows for more flexible refrigerant filling and recovery operations, eliminating the need for fixed filling stations or complex installation processes, significantly improving work efficiency and convenience.

[0025] The sight glass 3 installed on one side of the outer wall of the liquid storage tank 2 allows operators to directly observe the refrigerant level inside the tank, thus enabling them to promptly and accurately understand the status and remaining quantity of the working fluid. This helps to avoid insufficient or excessive working fluid, ensuring the stable operation of the generator set.

[0026] The filling pump 5 serves as a power source, connected to the liquid storage tank 2 and the generator set 6 via the delivery pipeline 4, enabling rapid filling and recovery of refrigerant. This design not only improves filling efficiency but also makes the recovery process more convenient, helping to reduce refrigerant waste and environmental pollution.

[0027] The casters mounted on the bottom of the flatbed trolley 1 allow the entire device to be moved easily, making it very convenient for transferring between different workstations or for long-distance transportation. This enhances the adaptability and flexibility of the device, enabling it to be widely used in various scenarios.

[0028] By compactly integrating all components onto the flatbed cart 1, this invention achieves a smaller footprint. This not only facilitates equipment storage and management but also enables efficient refrigerant charging and recovery operations within limited workspaces.

[0029] In this embodiment, a glass plate 31 is mounted on the front of the sight glass 3, and a scale line 32 is provided on one side of the glass plate 31. The glass plate 31 mounted on the front of the sight glass 3 provides a clear observation window, allowing the operator to directly see the refrigerant level in the storage tank 2. The scale line 32 on one side of the glass plate 31 further helps the operator accurately judge the amount of refrigerant, thereby achieving precise control of the filling and recovery process and avoiding system operation problems caused by too much or too little refrigerant.

[0030] Specifically, the top of the liquid storage tank 2 is equipped with a first connector 21 for liquid inlet, and the bottom of the liquid storage tank 2 is equipped with a second connector 22 for liquid outlet. The first connector 21 at the top of the liquid storage tank 2 is for liquid inlet, and the second connector 22 at the bottom is for liquid outlet. This design makes the refrigerant filling and recovery process smoother. With clearly defined inlet and outlet interfaces, operators can easily connect pipelines to add or remove refrigerant, improving work efficiency and operational convenience.

[0031] Furthermore, a third connector 11 is installed at one end of the output pipeline of the charging pump 5, providing a connection point for charging refrigerant into the generator set 6. This design makes the charging process more flexible, allowing for quick connection or disconnection of the pipeline to the generator set as needed, facilitating maintenance or replacement operations.

[0032] Furthermore, a first branch pipe 43 and a second branch pipe 44 are installed on the delivery pipeline 4, providing additional path options for the refrigerant flow. This design increases the flexibility of the piping system, allowing the refrigerant to be split or combined as needed, meeting the filling and recovery requirements under different operating conditions.

[0033] Furthermore, a third directional valve 431 is installed on the first branch pipe 43, and a fourth directional valve 441 is installed on the second branch pipe 44.

[0034] Furthermore, a first reversing valve 41 and a second reversing valve 42 are installed on the conveying pipeline 4. The first reversing valve 41 is connected in series with the third reversing valve 431, and the second reversing valve 42 is connected in series with the fourth reversing valve 441.

[0035] Furthermore, the input end of the filling pump 5 is connected to the pipeline between the first reversing valve 41 and the third reversing valve 431, and the output end of the filling pump 5 is connected to the pipeline between the second reversing valve 42 and the fourth reversing valve 441.

[0036] The third reversing valve 431 installed on the first branch pipe 43 and the fourth reversing valve 441 installed on the second branch pipe 44, together with the first reversing valve 41 and the second reversing valve 42 installed on the delivery pipeline 4, constitute a complex reversing control system. The series arrangement of these reversing valves allows for flexible switching of the refrigerant flow direction in the pipeline, realizing rapid conversion between filling and recovery functions, and improving the adaptability and operational flexibility of the equipment.

[0037] This utility model's quick-installation integrated refrigerant filling and recovery device allows for easy movement of the entire unit to the location where refrigerant needs to be filled or recovered, first utilizing the rollers at the bottom of the flatbed cart 1. This design enables the equipment to be quickly transferred between different workstations or transported over long distances, greatly improving work efficiency and convenience.

[0038] Operators can directly observe the refrigerant level in the storage tank 2 through the glass plate 31 mounted on the front of the sight glass 3. The scale lines 32 on one side of the glass plate 31 help operators accurately determine the amount of refrigerant, thus ensuring precise control of the filling and recovery processes. The first reversing valve 41, the second reversing valve 42, the third reversing valve 431, and the fourth reversing valve 441 together constitute a complex reversing control system. By flexibly switching the on / off states of these reversing valves, precise control of the refrigerant flow can be achieved, thus meeting the needs of both filling and recovery functions. This design improves the adaptability and operational flexibility of the equipment. Because all components are compactly integrated on the flatbed trolley 1, the entire device occupies a small space. This facilitates equipment storage and management, and also enables efficient refrigerant filling and recovery operations within a limited working space.

[0039] When it is necessary to add working fluid to the ORC generator set, close the third reversing valve 431 and the fourth reversing valve 441, open the first reversing valve 41 and the second reversing valve 42, and start the filling pump 5. The amount of working fluid added to the system can be obtained by observing the liquid level change in the storage tank 2. When it is necessary to extract working fluid from the ORC system, open the first reversing valve 41 and the second reversing valve 42, close the third reversing valve 431 and the fourth reversing valve 441, start the filling pump 5, and the amount of working fluid extracted from the system can be obtained by observing the liquid level change in the storage tank 2. The storage tank 2 of the device is connected to the working fluid pipeline through a quick connector. When the storage tank is full or empty, it can be easily removed for adjustment to ensure that the liquid level is near the middle of the scale.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-loading refrigerant filling and recovery integrated device, comprising a flatbed cart (1), characterized in that: The top of the flatbed (1) is provided with a liquid storage tank (2), and the bottom of the liquid storage tank (2) is connected to a filling pump (5) through a conveying pipeline (4). The output end of the filling pump (5) is connected to a generator set (6) through a pipeline. A sight glass (3) is installed on one side of the outer wall of the liquid storage tank (2), and rollers are installed at the bottom of the flatbed (1).

2. The integrated quick-loading refrigerant filling and recovery device according to claim 1, characterized in that: The sight glass (3) has a glass plate (31) mounted on its front side, and a scale line (32) is provided on one side of the glass plate (31).

3. The integrated quick-loading refrigerant filling and recovery device according to claim 1, characterized in that: The top of the liquid storage tank (2) is equipped with a first connector (21) for liquid inlet, and the bottom of the liquid storage tank (2) is equipped with a second connector (22) for liquid outlet.

4. The integrated quick-loading refrigerant filling and recovery device according to claim 1, characterized in that: A third connector (11) is installed at one end of the output pipe of the filling pump (5).

5. The integrated quick-loading refrigerant filling and recovery device according to claim 1, characterized in that: The delivery pipeline (4) is equipped with a first branch pipe (43) and a second branch pipe (44).

6. The integrated quick-loading refrigerant filling and recovery device according to claim 5, characterized in that: A third directional valve (431) is installed on the first branch pipe (43), and a fourth directional valve (441) is installed on the second branch pipe (44).

7. The integrated quick-loading refrigerant filling and recovery device according to claim 6, characterized in that: The conveying pipeline (4) is equipped with a first reversing valve (41) and a second reversing valve (42). The first reversing valve (41) and the third reversing valve (431) are connected in series, and the second reversing valve (42) and the fourth reversing valve (441) are connected in series.

8. The integrated quick-loading refrigerant filling and recovery device according to claim 7, characterized in that: The input end of the filling pump (5) is connected to the pipeline between the first reversing valve (41) and the third reversing valve (431), and the output end of the filling pump (5) is connected to the pipeline between the second reversing valve (42) and the fourth reversing valve (441).

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