A refrigerant leakage monitoring device

Abstract

The utility model discloses a refrigerant leakage monitoring device relates to refrigerant technical field. The utility model discloses a box body, the inboard bottom wall fixedly connected with control module of box body, the inboard bottom wall fixedly connected with fixed base of box body, the top fixedly connected with refrigerant tank body of fixed base, the side surface of refrigerant tank body is penetrated and has output pipeline, and the circumferential surface of output pipeline is provided with gas leakage monitoring device. The utility model discloses a connecting ring fixed in the gas leakage monitoring device in the connecting place of easy leakage of pipeline, can fix gas monitor stably in the leakage high incidence area of output pipeline, ensures the accurate monitoring position, and gas monitor can real -time monitoring refrigerant leakage situation of output pipeline, and the valve is closed and provides the basis for subsequent cut -off leakage channel, realizes the preliminary monitoring and prevention and control of refrigerant leakage, avoids the diffusion of leakage gas, causes environmental pollution and refrigerant waste.

Description

Technical Field

[0001] This invention relates to the field of refrigerant technology, and in particular to a refrigerant leakage monitoring device. Background Technology

[0002] Refrigerant is the working medium that transfers heat in a refrigeration system. It is commonly known as refrigerant or refrigerant and achieves heat absorption and release through changes in state.

[0003] A refrigerant leak monitoring device for refrigeration equipment (publication number: CN218937691U) includes a pipe. A gas pressure sensor and a gas flow sensor are installed on the outer surface of the pipe, and collars are fixedly installed on the outer surfaces of both ends of the pipe. The advantages of this invention are: through the coordinated arrangement of the gas pressure sensor, gas flow sensor, collars, controller, alarm, motor, lead screw, moving block, U-shaped moving frame, connecting slot, connecting block, arc ring, and gas sensor, it can monitor the pipe for leaks in real time. When a leak occurs, the arc ring moves to the leak location, and the alarm sounds, allowing personnel to quickly identify the leaking pipe without having to check each pipe individually, reducing the time required for investigation and increasing the speed of investigation.

[0004] In the aforementioned application, although the cooperation of components such as gas pressure sensors, gas flow sensors, movable arc rings, and alarms can achieve preliminary monitoring and location of pipeline leaks, reducing manual inspection time, the device is not adapted to pipeline connections in areas prone to refrigerant leaks. It can only achieve large-scale monitoring of the entire pipeline, making it difficult to solve the problem of monitoring leak risk points. Furthermore, it lacks an emergency shut-off function after a leak, which means that when a refrigerant leak occurs, the leak path cannot be quickly cut off. The leaked refrigerant can easily spread directly into the external environment, causing safety hazards, environmental pollution, and refrigerant waste, while also increasing the difficulty of subsequent handling. Therefore, we propose a refrigerant leak monitoring device. Utility Model Content

[0005] The purpose of this invention is to provide a refrigerant leak monitoring device. By fixing the device to the connection point of the pipeline where leakage is likely to occur through the connecting ring in the gas leak monitoring device, the problem of existing gas monitors being unable to monitor the refrigerant leak in the output pipeline in real time and close the valve in time to avoid the spread of leaked gas, which would cause environmental pollution and refrigerant waste is solved.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a refrigerant leakage monitoring device, comprising: a box, a control module fixedly connected to the inner bottom wall of the box, a fixed base fixedly connected to the inner bottom wall of the box, a refrigerant tank fixedly connected to the top of the fixed base, an output pipe penetrating the side of the refrigerant tank, and a gas leakage monitoring device provided on the circumferential surface of the output pipe. The gas leak monitoring device includes a connecting ring. The inner wall of the connecting ring is fixedly connected to the circumferential surface of the output pipeline. A gas detector is snapped onto the circumferential surface of the connecting ring. An electrical wire is fixedly connected to the side of the gas detector. A shut-off valve is fixedly connected to one end of the output pipeline. In the gas leak monitoring device, the connecting ring is fixed at a connection point in the pipeline that is prone to leakage, which can stably fix the gas detector in the high-leakage area of ​​the output pipeline, ensuring accurate monitoring location.

[0007] Furthermore, the gas detector is electrically connected to the control module via a wire. This connection allows leak signals detected by the gas detector to be quickly transmitted to the control module without manual intervention, significantly improving the response speed of leak signals.

[0008] Furthermore, the side of the shut-off valve is electrically connected to the control module via a wire, and the connecting ring is installed at the pipe connection. The electrical connection between the shut-off valve and the control module allows the control module to directly control the shut-off valve to close the output pipeline upon receiving a leak signal, achieving automatic shut-off after a leak. This effectively prevents continuous refrigerant leakage, reduces the risk of leak escalation, and the connecting ring, installed at a leak-prone pipe connection, allows the gas detector to accurately target high-risk leak locations, improving the targeting and sensitivity of leak detection and further ensuring the device's leak prevention and control effectiveness.

[0009] Furthermore, the number of gas detectors is set to two, and they are symmetrically distributed along the vertical central axis of the connecting ring. The two gas detectors can fully cover the circumferential area of ​​the pipeline connection point that is prone to leakage, avoiding the monitoring blind spots that exist with a single monitoring point.

[0010] Furthermore, a sealing monitoring and pressure relief device is provided on the circumferential surface of the output pipeline. This device includes a sealing housing, the side of which extends through the circumferential surface of the output pipeline. A heat sensor is fixedly connected to the inner wall of the sealing housing. A pressure relief pipe extends through the side of the sealing housing, and a one-way valve is fixedly connected to the circumferential surface of the pressure relief pipe. The sealing housing, installed on the circumferential surface of the output pipeline, provides sealing protection for critical areas of the pipeline. Even in the event of a leak, the refrigerant is confined within the sealing housing, preventing the spread of leaked gas.

[0011] Furthermore, a pressure relief box is fixedly connected to the inner wall of the enclosure, and the heat sensor is electrically connected to the control module via wires. The pressure relief box fixed to the inner wall of the enclosure provides a dedicated collection and storage space for leaked gas, preventing leaked refrigerant from being directly released into the external environment and causing pollution or safety hazards. The heat sensor is electrically connected to the control module via wires, enabling the temperature signal to be transmitted to the control module in real time, complementing the signal from the gas monitor. The control module can determine whether a leak has occurred through cross-verification of the dual signals, reducing false triggering.

[0012] Furthermore, the side of the pressure relief box is connected to the sealed box via a pressure relief pipe. Leaking gas inside the sealed box can be stably introduced into the pressure relief box through the pressure relief pipe, achieving safe containment of the leaking gas, avoiding pressure accumulation inside the sealed box, and facilitating subsequent centralized treatment or recovery of leaked refrigerant.

[0013] This utility model has the following beneficial effects: The connecting ring in this gas leak monitoring device is fixed at the connection point of the pipeline where leakage is likely to occur. This allows the gas monitor to be stably fixed in the high-leakage area of ​​the output pipeline, ensuring accurate monitoring location. The gas monitor can monitor the refrigerant leakage in the output pipeline in real time and can promptly close the valve to provide a basis for cutting off the leakage channel. This achieves the initial monitoring and prevention of refrigerant leakage, avoiding the spread of leaked gas and preventing environmental pollution and refrigerant waste.

[0014] The sealing housing in this utility model's sealing monitoring and pressure relief device is installed on the circumference of the output pipeline, which can seal and protect the critical areas of the output pipeline. Even if a leak occurs, the refrigerant can be confined within the sealing housing to prevent the leakage gas from spreading.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the overall three-dimensional appearance of this utility model; Figure 2 This is a schematic diagram of the internal structure of the utility box; Figure 3 This is a schematic diagram of the gas leak monitoring device of this utility model; Figure 4 This is a schematic diagram of the sealing monitoring and pressure relief device of this utility model; Figure 5 This utility model Figure 4 A schematic diagram of the structure of A in the diagram.

[0018] The attached diagram lists the components represented by each number as follows: 1. Housing; 2. Control module; 3. Mounting base; 5. Gas leak monitoring device; 6. Sealing monitoring and pressure relief device; 7. Output pipeline; 8. Refrigerant tank; 501. Connecting ring; 502. Gas monitor; 503. Wire; 504. Shut-off valve; 601. Sealed housing; 602. Heat sensor; 603. Pressure relief pipeline; 604. Pressure relief box; 605. Check valve. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-5 The present invention is a refrigerant leakage monitoring device, comprising: a housing 1, a control module 2 fixedly connected to the inner bottom wall of the housing 1, a fixed base 3 fixedly connected to the inner bottom wall of the housing 1, a refrigerant tank 8 fixedly connected to the top of the fixed base 3, an output pipe 7 penetrating through the side of the refrigerant tank 8, and a gas leakage monitoring device 5 provided on the circumferential surface of the output pipe 7. The gas leak monitoring device 5 includes a connecting ring 501. The inner wall of the connecting ring 501 is fixedly connected to the circumferential surface of the output pipeline 7. A gas detector 502 is snapped onto the circumferential surface of the connecting ring 501. An electric wire 503 is fixedly connected to the side of the gas detector 502. A shut-off valve 504 is fixedly connected to one end of the output pipeline 7. In the gas leak monitoring device 5, the connecting ring 501 is fixed at the connection point of the pipeline that is prone to leakage, which can stably fix the gas detector 502 in the high-leakage area of ​​the output pipeline 7, ensuring accurate monitoring location.

[0021] As shown in the figure, the gas detector 502 is electrically connected to the control module 2 via a wire 503. This connection allows the leak signal detected by the gas detector 502 to be quickly transmitted to the control module 2 without manual intervention, significantly improving the response speed of the leak signal.

[0022] As shown in the figure, the side of the shut-off valve 504 is electrically connected to the control module 2 via wire 503, and the connecting ring 501 is installed at the pipe connection. The electrical connection between the shut-off valve 504 and the control module 2 via wire 503 allows the control module 2 to directly control the shut-off valve 504 to close the output pipe 7 upon receiving a leak signal, achieving automatic shut-off after a leak, effectively preventing continuous refrigerant leakage, and reducing the risk of leak expansion. The connecting ring 501, installed at a pipe connection prone to leakage, allows the gas detector 502 to accurately target high-risk leakage points, improving the targeting and sensitivity of leak detection, and further ensuring the leak prevention and control effect of the device.

[0023] As shown in the figure, two gas detectors 502 are set and symmetrically distributed along the vertical central axis of the connecting ring 501. The two gas detectors 502 can fully cover the circumferential area of ​​the pipeline connection that is prone to leakage, avoiding the monitoring blind spots that exist with a single monitoring point.

[0024] As shown in the figure, a sealing monitoring and pressure relief device 6 is installed on the circumferential surface of the output pipeline 7. The sealing monitoring and pressure relief device 6 includes a sealing housing 601, the side of which extends through the circumferential surface of the output pipeline 7. A heat sensor 602 is fixedly connected to the inner wall of the sealing housing 601. A pressure relief pipe 603 extends through the side of the sealing housing 601, and a one-way valve 605 is fixedly connected to the circumferential surface of the pressure relief pipe 603. The sealing housing 601 is installed on the circumferential surface of the output pipeline 7, which can seal and protect the critical area of ​​the output pipeline 7. Even if a leak occurs, the refrigerant can be confined within the sealing housing 601 to prevent the spread of leaked gas.

[0025] As shown in the figure, a pressure relief box 604 is fixedly connected to the inner wall of the housing 1, and a heat sensor 602 is electrically connected to the control module 2 via a wire 503. The pressure relief box 604 fixed to the inner wall of the housing 1 provides a dedicated collection and storage space for leaked gas, preventing leaked refrigerant from being directly discharged into the external environment and causing pollution or safety hazards. The heat sensor 602 is electrically connected to the control module 2 via a wire 503, enabling the temperature signal to be transmitted to the control module 2 in real time, complementing the signal from the gas detector 502. The control module 2 can determine whether a leak has occurred through cross-verification of the dual signals, reducing false triggering.

[0026] As shown in the figure, the side of the pressure relief box 604 is connected to the sealed box 601 via a pressure relief pipe 603. Leaked gas in the sealed box 601 can be stably introduced into the pressure relief box 604 through the pressure relief pipe 603, achieving safe containment of leaked gas, avoiding pressure accumulation in the sealed box 601, and facilitating subsequent centralized treatment or recovery of leaked refrigerant.

[0027] A specific application of this embodiment is as follows: After the device is powered on and started, the control module 2 synchronously establishes communication and electrical connections with the gas leak monitoring device 5 and the sealing monitoring and pressure relief device 6. The housing 1 provides a closed protection and stable installation environment for the internal control module 2, the fixed base 3, and the refrigerant tank 8. The fixed base 3 provides a firm support for the refrigerant tank 8, preventing the tank from shaking during transportation and causing loosening at the connection of the output pipeline 7. The refrigerant in the refrigerant tank 8 is normally transported along the output pipeline 7. The valve 504 is kept open to ensure that the transportation channel is unobstructed. In the gas leak monitoring device 5, the connecting ring 501 is pre-fixed at the connection point of the pipeline that is prone to leakage. Two gas detectors 502, symmetrically distributed along the vertical central axis of the connecting ring 501, simultaneously monitor the gas composition over a wide range in areas prone to leakage. Meanwhile, the sealed housing 601 of the sealed monitoring and pressure relief device 6 is installed on the circumference of the output pipeline 7, forming a sealed enclosure for critical areas of the pipeline. The internal heat sensor 602 monitors the temperature changes inside the housing in real time. The pressure relief pipeline 603 remains unobstructed, and the one-way valve 605 is closed to isolate external gases and impurities. If the leakage occurs... If a refrigerant leak occurs in the outlet pipe 7, especially at the pipe connection, the leaking gas is first confined inside the sealed enclosure 601 to prevent diffusion. The gas monitor 502 detects that the refrigerant concentration exceeds the standard and immediately transmits the leak signal to the control module 2 via the wire 503. At the same time, the heat sensor 602 captures the heat absorption and cooling signal of the refrigerant leak and also feeds it back to the control module 2 via the wire 503. After receiving the dual signals, the control module 2 cross-verifies them and immediately triggers an emergency command upon confirming the leak: on the one hand, it controls the shut-off valve 504 to close quickly, cutting off the refrigerant delivery channel of the outlet pipe 7 and preventing the leak from expanding; on the other hand, when the pressure inside the sealed enclosure 601 reaches the preset value, the leaking gas is directed into the pressure relief box 604 through the pressure relief pipe 603 for centralized storage, preventing secondary damage caused by excessive pressure in the sealed enclosure 601. The leaking gas is completely confined within the pressure relief box 604. The control module 2 continues to receive signals from the gas monitor 502 and the heat sensor 602 until it is confirmed that the leak has stopped and the pressure has returned to normal. The entire device can maintain a safe state or issue an alarm to prompt manual handling according to the preset program.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A refrigerant leak monitoring device, characterized in that, include: The box (1) has a control module (2) fixedly connected to the inner bottom wall of the box (1), a fixed base (3) fixedly connected to the inner bottom wall of the box (1), a refrigerant tank (8) fixedly connected to the top of the fixed base (3), an output pipe (7) passing through the side of the refrigerant tank (8), and a gas leak monitoring device (5) provided on the circumferential surface of the output pipe (7). The gas leak monitoring device (5) includes a connecting ring (501), the inner wall of which is fixedly connected to the circumferential surface of the output pipeline (7), a gas detector (502) is snapped onto the circumferential surface of the connecting ring (501), an electric wire (503) is fixedly connected to the side of the gas detector (502), and a shut-off valve (504) is fixedly connected to one end of the output pipeline (7).

2. The refrigerant leakage monitoring device according to claim 1, characterized in that, The gas detector (502) is electrically connected to the control module (2) via a wire (503).

3. The refrigerant leakage monitoring device according to claim 2, characterized in that, The side of the shut-off valve (504) is electrically connected to the control module (2) via a wire (503), and the connecting ring (501) is installed at the pipe connection.

4. The refrigerant leak monitoring device according to claim 3, characterized in that, The number of gas monitors (502) is set to two, and they are symmetrically distributed along the vertical central axis of the connecting ring (501).

5. A refrigerant leakage monitoring device according to claim 4, characterized in that, The output pipeline (7) is provided with a sealing monitoring and pressure relief device (6) on its circumferential surface. The sealing monitoring and pressure relief device (6) includes a sealing housing (601). The side of the sealing housing (601) extends through the circumferential surface of the output pipeline (7). A heat sensor (602) is fixedly connected to the inner wall of the sealing housing (601). A pressure relief pipe (603) extends through the side of the sealing housing (601). A one-way valve (605) is fixedly connected to the circumferential surface of the pressure relief pipe (603).

6. A refrigerant leakage monitoring device according to claim 5, characterized in that, The inner wall of the box (1) is fixedly connected to a pressure relief box (604), and the heat sensor (602) is electrically connected to the control module (2) through a wire (503).

7. A refrigerant leakage monitoring device according to claim 6, characterized in that, The side of the pressure relief box (604) is connected to the sealed box body (601) through a pressure relief pipe (603).

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