Air-cooled heat pump evaporator mechanical seal type pipe interface device

Abstract

The utility model relates to air-cooled heat pump evaporator technical field, concretely is air-cooled heat pump evaporator mechanical sealing type pipeline interface device, including evaporator body, be provided with connecting pipe on the evaporator body, the one end of connecting pipe is provided with the interface pipe, the inner wall on the one end of connecting pipe is provided with the internal thread groove, the one end of interface pipe is provided with the external thread connecting end, and the external thread connecting end is connected with internal thread groove threadedly. This air-cooled heat pump evaporator mechanical sealing type pipeline interface device, through the cooperation of evaporator body, connecting pipe, interface pipe, external thread connecting end, internal thread groove, first sealing sleeve, second sealing sleeve, O ring gasket, embedding groove, first flange and second flange, the connection of interface pipe and connecting pipe realizes three -fold sealing by first sealing sleeve, second sealing sleeve and O ring gasket, effectively prevents refrigerant leakage, improves sealing performance, ensures the normal operation of air-cooled heat pump evaporator.

Description

Technical Field

[0001] This utility model relates to the field of air-cooled heat pump evaporator technology, specifically to a mechanically sealed pipe interface device for air-cooled heat pump evaporators. Background Technology

[0002] The air-cooled heat pump evaporator is an important component of the air-cooled heat pump unit, which achieves cooling or heating functions by exchanging heat with the outside air. During the operation of the air-cooled heat pump evaporator, it needs to be connected to other components (such as compressors, condensers, etc.) through pipe interface devices to achieve the circulation of refrigerant.

[0003] The sealing design of existing air-cooled heat pump evaporator pipe interface devices has significant shortcomings. Most employ a simple sealing method, directly fixing the pipe interface via a connecting flange, with rubber sealing rings only installed at the pipe connection. This single sealing structure lacks redundancy, and under long-term operation, the rubber sealing rings are prone to aging and deformation due to temperature and pressure changes and vibration, leading to seal failure. Furthermore, the pipe connections rely solely on flange positioning, resulting in low stability at the pipe interfaces.

[0004] Therefore, it is necessary to provide a mechanically sealed pipe interface device for air-cooled heat pump evaporators to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a mechanically sealed pipe interface device for air-cooled heat pump evaporators to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mechanically sealed pipe interface device for an air-cooled heat pump evaporator, comprising:

[0008] An evaporator body is provided with a connecting pipe. One end of the connecting pipe is provided with an interface pipe. An internal thread groove is opened on the inner wall of one end of the connecting pipe. One end of the interface pipe is provided with an external thread connection end, and the external thread connection end is threadedly connected to the internal thread groove.

[0009] The internal thread groove is provided with a first sealing sleeve, one end of the connecting pipe is provided with an embedding groove, and the embedding groove is connected to the interior of the internal thread groove. The outer wall of the external thread connection end is provided with a second sealing sleeve, and the second sealing sleeve is adapted to the embedding groove.

[0010] A first flange is fixedly installed on the outer wall of one end of the connecting pipe, and a second flange is provided on the outer wall of one end of the interface pipe.

[0011] Preferably, an annular slide is provided on the outer wall of one end of the interface pipe, and a number of sliders are fixedly installed at equal intervals and uniformly on the inner surface of the second flange, and the sliders are slidably connected to the annular slide.

[0012] Preferably, the outer diameter of the first sealing sleeve is adapted to the diameter of the internal thread groove.

[0013] Preferably, the inner diameter of the second sealing sleeve is adapted to the outer diameter of the external threaded connection end, and the outer diameter of the second sealing sleeve is adapted to the diameter of the embedded groove.

[0014] Preferably, an O-ring gasket is provided between the first flange and the second flange.

[0015] Preferably, the interface tube and the external threaded connection end are integrally formed.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model utilizes the combined use of an evaporator body, connecting pipe, interface pipe, external threaded connection end, internal threaded groove, first sealing sleeve, second sealing sleeve, O-ring gasket, embedded groove, first flange, and second flange. The connection between the interface pipe and the connecting pipe relies on the first sealing sleeve, second sealing sleeve, and O-ring gasket to achieve a triple seal, effectively preventing refrigerant leakage, improving sealing performance, and ensuring the normal operation of the air-cooled heat pump evaporator. Furthermore, before the flange is fixed, the external threaded connection end of the interface pipe is screwed into the internal threaded groove, mutually limiting the connection between the connecting pipe and the interface pipe, enhancing the stability of the pipe interface connection, and overcoming the problems of existing devices having a single sealing structure prone to failure and poor stability relying solely on flange positioning.

[0018] 2. This utility model utilizes the combined use of a slider and an annular slide rail to enhance the sealing performance of the first and second sealing sleeves. The external threaded connection end is tightened into the internal thread groove, effectively limiting the positioning of both the first and second sealing sleeves and achieving a good seal. If the mounting holes of the second flange and the first flange cannot be aligned during installation, the second flange can slide along the annular slide rail and rotate on the outer wall of the interface pipe, ensuring precise alignment of the mounting holes before securing with bolts and nuts. This design locks the position of the second flange without affecting the stability of the connection between the connecting pipe and the interface pipe flange, ensuring accurate and proper installation, and offering high practicality. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the second flange in this utility model;

[0022] Figure 4 This is a schematic diagram of the interface tube in this utility model.

[0023] In the figure: 1. Evaporator body; 2. Connecting pipe; 3. Interface pipe; 4. External threaded connection end; 5. Internal threaded groove; 6. First sealing sleeve; 7. Second sealing sleeve; 8. O-ring gasket; 9. Embedded groove; 10. First flange; 11. Second flange; 12. Sliding block; 13. Annular slide. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] 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.

[0028] Please see Figures 1-4 The embodiments provided by this utility model are as follows:

[0029] A mechanically sealed pipe interface device for an air-cooled heat pump evaporator, comprising:

[0030] Evaporator body 1, evaporator body 1 is provided with connecting pipe 2, one end of connecting pipe 2 is provided with interface pipe 3, one end of connecting pipe 2 is provided with internal thread groove 5, one end of interface pipe 3 is provided with external thread connection end 4, and the external thread connection end 4 is threadedly connected to the internal thread groove 5.

[0031] The inner thread groove 5 is provided with a first sealing sleeve 6, and one end of the connecting pipe 2 is provided with an embedding groove 9, which is connected to the interior of the inner thread groove 5. The outer wall of the external thread connecting end 4 is provided with a second sealing sleeve 7, which is adapted to the embedding groove 9.

[0032] A first flange 10 is fixedly installed on the outer wall of one end of the connecting pipe 2, and a second flange 11 is provided on the outer wall of one end of the interface pipe 3.

[0033] An annular slide rail 13 is provided on the outer wall of one end of the interface pipe 3. Several sliders 12 are fixedly installed at equal intervals and evenly on the inner surface of the second flange 11, and the sliders 12 are slidably connected to the annular slide rail 13, so that the second flange 11 can rotate flexibly and is easy to install and align.

[0034] In one embodiment, the outer diameter of the first sealing sleeve 6 is matched with the diameter of the internal thread groove 5, which can ensure that the two fit tightly and enhance the sealing performance.

[0035] In one preferred embodiment, the inner diameter of the second sealing sleeve 7 is adapted to the outer diameter of the external threaded connection end 4, and the outer diameter of the second sealing sleeve 7 is adapted to the diameter of the embedded groove 9, which can ensure tight installation and improve sealing effect and connection stability.

[0036] In one embodiment, an O-ring gasket 8 is provided between the first flange 10 and the second flange 11 to fill the flange face gap, enhance the seal, prevent media leakage, and also buffer and reduce shock, thereby improving connection stability and reliability.

[0037] In one preferred embodiment, the interface tube 3 and the external threaded connection end 4 are integrally formed, which can enhance the structural strength and integrity, prevent loosening and leakage of the connection parts, reduce processing and assembly steps, improve production efficiency and reduce costs.

[0038] The working principle of this utility model is as follows: All parts not covered in this device follow existing technology or can be implemented using existing technology. When connecting the interface pipe 3 and the connecting pipe 2, firstly, the first sealing sleeve 6 is placed at the end of the internal thread groove 5, and the second sealing sleeve 7 is placed in the embedding groove 9. Then, the interface pipe 3 is screwed on so that the external threaded connection end 4 and the internal thread groove 5 are threadedly engaged. After both are fully tightened, the end of the external threaded connection end 4 tightly presses against the end of the internal thread groove 5, and one end of the interface pipe 3 also tightly presses against the second sealing sleeve 7 in the embedding groove 9. During this process, the threaded connection between the external threaded connection end 4 and the internal thread groove 5, in conjunction with the first sealing sleeve 6 and the second sealing sleeve 7, achieves a double seal. After the interface pipe 3 and the connecting pipe 2 are initially connected, the second flange 11 is fitted against the first flange 10, fixed with bolts and nuts, and an O-ring gasket 8 is installed to further strengthen the seal and ensure the stability of the sealing assembly structure. The connection between interface pipe 3 and connecting pipe 2 relies on a triple seal achieved by the first sealing sleeve 6, the second sealing sleeve 7, and the O-ring gasket 8, effectively preventing refrigerant leakage, improving sealing performance, and ensuring the normal operation of the air-cooled heat pump evaporator. Furthermore, before the flange is fixed, the external threaded connection end 4 of interface pipe 3 is screwed into the internal threaded groove 5, causing the connecting pipe 2 and interface pipe 3 to mutually limit each other, enhancing the stability of the pipe interface connection and overcoming the problems of existing devices having a single sealing structure prone to failure and poor stability relying solely on flange positioning.

[0039] The sealing performance of the first sealing sleeve 6 and the second sealing sleeve 7 mainly relies on the tightening operation of the external threaded connection end 4 within the internal threaded groove 5, thereby effectively limiting the first sealing sleeve 6 and the second sealing sleeve 7, and thus achieving a good sealing effect. When the interface pipe 3 is installed, if the mounting hole on the second flange 11 cannot be aligned with the mounting hole on the first flange 10, it will affect the installation process. Therefore, after the interface pipe 3 is initially installed, the second flange 11 can slide within the annular slide 13 using the slider 12, achieving rotation on the outer wall of the interface pipe 3, thereby precisely aligning it with the mounting hole on the first flange 10, and then fixing it with bolts and nuts. After the bolts and nuts are tightened, the position of the second flange 11 on the interface pipe 3 will be locked, without affecting the stability of the flange connection between the connecting pipe 2 and the interface pipe 3. Through the rotatable design of the second flange 11, the first flange 10 and the second flange 11 can be accurately installed while ensuring that all pipeline structures are installed in place, which has high practicality.

[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 mechanically sealed pipe interface device for an air-cooled heat pump evaporator, characterized in that, It includes: Evaporator body (1), the evaporator body (1) is provided with a connecting pipe (2), one end of the connecting pipe (2) is provided with an interface pipe (3), an internal thread groove (5) is opened on the inner wall of one end of the connecting pipe (2), and an external thread connection end (4) is provided at one end of the interface pipe (3), and the external thread connection end (4) is threadedly connected to the internal thread groove (5). The inner thread groove (5) is provided with a first sealing sleeve (6), and one end of the connecting pipe (2) is provided with an embedding groove (9), which is connected to the inner thread groove (5). The outer wall of the external thread connecting end (4) is provided with a second sealing sleeve (7), which is adapted to the embedding groove (9). A first flange (10) is fixedly installed on the outer wall of one end of the connecting pipe (2), and a second flange (11) is provided on the outer wall of one end of the interface pipe (3).

2. The mechanically sealed pipe interface device for an air-cooled heat pump evaporator according to claim 1, characterized in that: An annular slide (13) is provided on the outer wall of one end of the interface pipe (3). Several sliders (12) are fixedly installed at equal intervals and uniformly on the inner surface of the second flange (11), and the sliders (12) are slidably connected to the annular slide (13).

3. The mechanically sealed pipe interface device for an air-cooled heat pump evaporator according to claim 1, characterized in that: The outer diameter of the first sealing sleeve (6) is matched with the diameter of the internal thread groove (5).

4. The mechanically sealed pipe interface device for an air-cooled heat pump evaporator according to claim 1, characterized in that: The inner diameter of the second sealing sleeve (7) is adapted to the outer diameter of the external thread connection end (4), and the outer diameter of the second sealing sleeve (7) is adapted to the diameter of the embedded groove (9).

5. The mechanically sealed pipe interface device for an air-cooled heat pump evaporator according to claim 1, characterized in that: An O-ring gasket (8) is provided between the first flange (10) and the second flange (11).

6. The mechanically sealed pipe interface device for an air-cooled heat pump evaporator according to claim 1, characterized in that: The interface tube (3) and the external threaded connection end (4) are integrally formed.

Images