Sealing end cover with temperature adjusting structure

Abstract

The utility model provides a sealing end cover with a temperature adjusting structure, which comprises a main body supporting component, an axial limiting component, an assembling and positioning component, a rotating shaft shielding component, an inflow switching component and a backflow switching component, and is provided with a primary stage ring, a secondary stage ring and a final stage ring to position and limit the end face of a static ring in different stages. The multi-stage limiting structure can more accurately control the position of the static ring and prevent the static ring from axially moving, and the shielding convex ring can prevent the tail end of the rotating shaft from being accidentally damaged or sundries from entering, so that key parts of the sealing mechanism are protected, the service life of the sealing mechanism is prolonged, and the sealing efficiency is improved. The inlet flow through hole and the outlet flow through hole can ensure that a refrigerant is uniformly distributed and effectively discharged in an assembly space, the efficiency and the stability of temperature regulation are improved, the sealing mechanism can stably operate under various environments and use conditions, the operation reliability of the sealing mechanism is improved, and the service life of the sealing mechanism is prolonged.

Description

Technical Field

[0001] The utility model relates to a sealing component, in particular to a sealing end cover with a temperature regulating structure. Background Art

[0002] In a mechanical sealing mechanism, an end cover is required to fix the stationary ring. Such an end cover, such as the structure disclosed in patent document CN202056204U, includes a cylindrical body, a convex ring also in the shape of a cylinder is connected to the center of the body, a through hole is provided in the center of the body and the convex ring, a groove 1 is provided on the outer circle of the convex ring, a sealing ring is provided in the groove 1, and a groove 2 is also provided on the end face of the body for placing the sealing ring, and a chamfer is provided on the outer edge of the body, and the depth of the groove 2 is less than the depth of the groove 1. The end cover has a simple structure and low production cost, and is also easy to install. Even if the sealing ring is damaged after long-term use, it is easy to unload and install the sealing ring. However, during the use of an end cover, the internal rotating parts tend to dissipate a large amount of heat, which increases the temperature of the mating part between the stationary ring and the dynamic ring, causing deformation of the parts, forming leakage points, and shortening the service life of the entire sealing structure. Therefore, it is necessary to optimize the structure of this end cover to overcome the above-mentioned defects. Utility Model Content

[0003] The utility model aims to provide a sealing end cover with a temperature regulating structure to improve its operating reliability and prolong its service life.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A sealing end cover with a temperature regulating structure, comprising:

[0006] A main body supporting member, wherein the main body supporting member has an assembly space, wherein the assembly space has an assembly space whose shape matches the outer wall surface of the static ring of the sealing mechanism, and the static ring can be installed in the main body supporting member and supported by the main body supporting member;

[0007] An axial limiting member, which is formed in the main supporting member and has a shape that matches the end face of the stationary ring, and is used to axially limit the stationary ring in the main supporting member;

[0008] An assembly positioning member is formed in the main body support member and is adapted to the shape of the support housing of the sealing mechanism. The assembly positioning member can be installed on the end of the support housing through a connector adapted thereto, and the main body support member is positioned by the assembly positioning member;

[0009] A rotating shaft shielding member is formed in the main body supporting member, and has a shielding space inside thereof that matches the shape of the rotating shaft end, and the rotating shaft shielding member shields and protects the rotating shaft end;

[0010] An inlet flow transfer component is formed in the main body support component and communicated with the inside of the main body support component, and can be communicated with a refrigerant supply device through the inlet flow transfer component. The refrigerant supply device delivers refrigerant to the main body support component through the inlet flow transfer component to cool the main body support component;

[0011] A reflux transfer component is formed in the main body support component and is connected to the inside of the main body support component. The reflux transfer component can be connected to the refrigerant recovery device through the reflux transfer component. The refrigerant in the main body support component can be returned to the refrigerant recovery device through the reflux transfer component.

[0012] Specifically, the main body support member includes:

[0013] The supporting base cylinder has a cylindrical assembly space inside, the outer wall of the stationary ring abuts against the inner wall of the supporting base cylinder, and the supporting base cylinder radially supports the stationary ring.

[0014] The axial limiting component includes:

[0015] A primary step ring is formed on the inner wall of the support base tube, extends along the circumference of the support base tube, and protrudes radially toward the inner side of the support base tube. The primary step ring performs primary positioning on the end face of the stationary ring;

[0016] A secondary step ring is formed on the inner wall of the support base tube, extends along the circumference of the support base tube, and protrudes radially toward the inner side of the support base tube. Its height is greater than that of the primary step ring, and the secondary step ring performs secondary positioning on the end face of the stationary ring;

[0017] The final step ring is formed on the inner wall of the supporting base tube. It extends along the circumference of the supporting base tube and protrudes radially toward the inner side of the supporting base tube. Its height is greater than that of the secondary step ring. The final step ring performs final positioning on the end face of the stationary ring.

[0018] In one embodiment of the present invention, the primary step ring, the secondary step ring and the final step ring are arranged in sequence along the axial direction of the supporting base tube, the primary step ring is located at the inner end, and the final step ring is located at the outer end.

[0019] In one embodiment of the utility model, a limiting groove is further provided on the inner end surface of the supporting base tube, the limiting groove extends along the circumference of the supporting base tube and is recessed radially toward the inner side of the supporting base tube, and the end of the support shell is limited by the limiting groove.

[0020] The assembly and positioning components include:

[0021] The assembly notches have a group, each of which is respectively opened on the outer wall of the support base tube, axially penetrates both ends of the support base tube, and is arranged in sequence along the circumference of the support base tube, and is adapted to the shape of the bolt head of the locking bolt;

[0022] The positioning inner edge has a group, each positioning inner edge is formed on the inner wall of the assembly notch, protrudes radially toward the inner side of the assembly notch, and is adapted to the shape of the bolt rod of the locking bolt.

[0023] The rotating shaft shielding component comprises:

[0024] A shielding convex ring is formed at the outer end of the supporting base cylinder and protrudes axially toward the outside of the supporting base cylinder. The interior of the shielding convex ring is provided with a avoidance opening connected to the assembly space. The end of the rotating shaft connected to the stationary ring can be exposed from the avoidance opening, and the end of the rotating shaft is shielded and protected by the shielding convex ring.

[0025] The inlet flow transfer components include:

[0026] An inlet port is provided on the outer wall of the supporting base tube and extends radially along the supporting base tube. A supply pipeline of a refrigerant supply device can be screwed into the inlet port through a thread.

[0027] The inlet flow hole is opened in the inlet port and is connected with the assembly space inside the support base cylinder. Refrigerant can be supplied to the assembly space through the inlet flow hole to adjust the temperature of the support base cylinder and the static ring.

[0028] The drainage adapter component includes:

[0029] A discharge port is provided on the outer wall of the supporting base tube and extends radially along the supporting base tube. The return pipe of the refrigerant recovery device can be screwed into the discharge port through a thread;

[0030] A discharge flow hole is provided in the discharge port and is communicated with the assembly space inside the supporting base cylinder. The assembly space can transport the refrigerant to the refrigerant recovery device through the discharge flow hole.

[0031] In one embodiment of the present invention, the diameter of the exhaust flow hole is smaller than the diameter of the inlet flow hole, so that the residence time of the refrigerant in the assembly space is prolonged.

[0032] The advantages of the utility model are:

[0033] The sealing end cover is provided with primary, secondary and final step rings to perform different levels of positioning and limiting on the end face of the static ring. This multi-stage limiting structure can more accurately control the position of the static ring to prevent its axial movement. The shielding convex ring can prevent the end of the rotating shaft from accidental damage or the entry of debris, thereby protecting the key parts of the sealing mechanism and extending its service life. The inlet flow holes and the exhaust flow holes can ensure the uniform distribution and effective discharge of the refrigerant in the assembly space, improve the efficiency and stability of temperature regulation, and ensure that the sealing mechanism can operate stably in various environments and use conditions, thereby improving the operating reliability of the sealing mechanism and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is one of the structural schematic diagrams of the sealing end cover proposed by the utility model;

[0035] Figure 2 This is the second structural schematic diagram of the sealing end cover;

[0036] Figure 3 It is a schematic diagram of the cross-sectional structure of the sealing end cover. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0038] like Figure 1 to Figure 3As shown, the sealing end cover with a temperature regulating structure proposed by the utility model includes a main body supporting component, an axial limiting component, an assembly positioning component, a rotating shaft shielding component, an inlet flow transition component and a return flow transition component. The main body supporting component has an assembly space, and the interior thereof has an assembly space whose shape is adapted to the outer wall surface of the stationary ring of the sealing mechanism. The stationary ring can be installed in the main body supporting component and supported by the main body supporting component. The axial limiting component is formed in the main body supporting component, and its shape is adapted to the end surface of the stationary ring. The stationary ring in the main body supporting component is axially limited by the axial limiting component. The assembly positioning component is formed in the main body supporting component and is adapted to the shape of the support shell of the sealing mechanism. The assembly positioning component can be installed on the support shell through a connecting piece adapted thereto. At the end of the shell, the main body supporting member is positioned by an assembly positioning member, a rotating shaft shielding member is formed in the main body supporting member, and has a shielding space inside that matches the shape of the end of the rotating shaft, and the end of the rotating shaft is shielded and protected by the rotating shaft shielding member, an inlet flow transfer member is formed in the main body supporting member, and is connected to the inside of the main body supporting member, and can be connected to the refrigerant supply device through the inlet flow transfer member, and the refrigerant supply device transports the refrigerant to the main body supporting member through the inlet flow transfer member to cool the main body supporting member, a reflux transfer member is formed in the main body supporting member, and is connected to the inside of the main body supporting member, and can be connected to the refrigerant recovery device through the reflux transfer member, and the refrigerant in the main body supporting member can be returned to the refrigerant recovery device through the reflux transfer member.

[0039] In Embodiment 1, the main supporting member includes a supporting base cylinder 100, a cylindrical assembly space is provided inside the supporting base cylinder, the outer wall of the stationary ring abuts against the inner wall of the supporting base cylinder, and the supporting base cylinder radially supports the stationary ring.

[0040] The axial limiting member includes a primary step ring 210, a secondary step ring 220 and a final step ring 230. The primary step ring is formed on the inner wall of the supporting base tube, extends along the circumference of the supporting base tube, and protrudes radially toward the inner side of the supporting base tube. The primary step ring performs primary positioning on the end face of the stationary ring. The secondary step ring is formed on the inner wall of the supporting base tube, extends along the circumference of the supporting base tube, and protrudes radially toward the inner side of the supporting base tube. Its height is greater than the height of the primary step ring. The secondary step ring performs secondary positioning on the end face of the stationary ring. The final step ring is formed on the inner wall of the supporting base tube, extends along the circumference of the supporting base tube, and protrudes radially toward the inner side of the supporting base tube. Its height is greater than the height of the secondary step ring. The final step ring performs final positioning on the end face of the stationary ring.

[0041] The assembly positioning component includes an assembly notch 310 and a positioning inner edge 320. There is a group of assembly notches, each of which is respectively opened on the outer wall of the supporting base tube. It axially penetrates both ends of the supporting base tube and is arranged sequentially along the circumference of the supporting base tube. It is adapted to the shape of the bolt head of the locking bolt. There is a group of positioning inner edges, each of which is respectively formed on the inner wall of the assembly notch. It protrudes radially toward the inner side of the assembly notch and is adapted to the shape of the bolt rod of the locking bolt.

[0042] The rotating shaft shielding component includes a shielding convex ring 400, which is formed at the outer end of the supporting base cylinder and protrudes axially toward the outside of the supporting base cylinder. It has an avoidance opening connected to the assembly space. The end of the rotating shaft connected to the static ring can be exposed from the avoidance opening, and the shielding convex ring is used to shield and protect the end of the rotating shaft.

[0043] The inlet flow adapter component includes an inlet port 510 and an inlet flow hole 520. The inlet port is opened on the outer wall of the supporting base cylinder and extends radially along the supporting base cylinder. The supply pipeline of the refrigerant supply equipment can be screwed into the inlet port through a thread. The inlet flow hole is opened in the inlet port and communicates with the assembly space inside the supporting base cylinder. The refrigerant can be supplied to the assembly space through the inlet flow hole to adjust the temperature of the supporting base cylinder and the static ring.

[0044] The discharge adapter component includes a discharge port 610 and a discharge flow hole 620. The discharge port is opened on the outer wall of the supporting base tube and extends radially along the supporting base tube. The return pipeline of the refrigerant recovery equipment can be screwed into the discharge port through a thread. The discharge flow hole is opened in the discharge port and communicates with the assembly space inside the supporting base tube. The assembly space can transport refrigerant to the refrigerant recovery equipment through the discharge flow hole.

[0045] In Embodiment 2, the main supporting member includes a supporting base cylinder 100, a cylindrical assembly space is provided inside the supporting base cylinder, the outer wall of the stationary ring abuts against the inner wall of the supporting base cylinder, and the supporting base cylinder radially supports the stationary ring.

[0046] The axial limiting member includes a primary step ring 210, a secondary step ring 220 and a final step ring 230. The primary step ring is formed on the inner wall of the supporting base tube, extends along the circumference of the supporting base tube, and protrudes radially toward the inner side of the supporting base tube. The primary step ring performs primary positioning on the end face of the stationary ring. The secondary step ring is formed on the inner wall of the supporting base tube, extends along the circumference of the supporting base tube, and protrudes radially toward the inner side of the supporting base tube. Its height is greater than the height of the primary step ring. The secondary step ring performs secondary positioning on the end face of the stationary ring. The final step ring is formed on the inner wall of the supporting base tube, extends along the circumference of the supporting base tube, and protrudes radially toward the inner side of the supporting base tube. Its height is greater than the height of the secondary step ring. The final step ring performs final positioning on the end face of the stationary ring.

[0047] In this embodiment, the primary step ring, the secondary step ring and the final step ring are arranged in sequence along the axial direction of the supporting base tube, the primary step ring is located at the inner end, and the final step ring is located at the outer end.

[0048] In this embodiment, a limiting groove 240 is further provided on the inner end surface of the support base tube. The limiting groove extends along the circumference of the support base tube and is recessed radially toward the inner side of the support base tube. The limiting groove limits the end of the support shell.

[0049] The assembly positioning component includes an assembly notch 310 and a positioning inner edge 320. There is a group of assembly notches, each of which is respectively opened on the outer wall of the supporting base tube. It axially penetrates both ends of the supporting base tube and is arranged sequentially along the circumference of the supporting base tube. It is adapted to the shape of the bolt head of the locking bolt. There is a group of positioning inner edges, each of which is respectively formed on the inner wall of the assembly notch. It protrudes radially toward the inner side of the assembly notch and is adapted to the shape of the bolt rod of the locking bolt.

[0050] The rotating shaft shielding component includes a shielding convex ring 400, which is formed at the outer end of the supporting base cylinder and protrudes axially toward the outside of the supporting base cylinder. It has an avoidance opening connected to the assembly space. The end of the rotating shaft connected to the static ring can be exposed from the avoidance opening, and the shielding convex ring is used to shield and protect the end of the rotating shaft.

[0051] The inlet flow adapter component includes an inlet port 510 and an inlet flow hole 520. The inlet port is opened on the outer wall of the supporting base cylinder and extends radially along the supporting base cylinder. The supply pipeline of the refrigerant supply equipment can be screwed into the inlet port through a thread. The inlet flow hole is opened in the inlet port and communicates with the assembly space inside the supporting base cylinder. The refrigerant can be supplied to the assembly space through the inlet flow hole to adjust the temperature of the supporting base cylinder and the static ring.

[0052] The discharge adapter component includes a discharge port 610 and a discharge flow hole 620. The discharge port is opened on the outer wall of the supporting base tube and extends radially along the supporting base tube. The return pipeline of the refrigerant recovery equipment can be screwed into the discharge port through a thread. The discharge flow hole is opened in the discharge port and communicates with the assembly space inside the supporting base tube. The assembly space can transport refrigerant to the refrigerant recovery equipment through the discharge flow hole.

[0053] In this embodiment, the diameter of the exhaust flow hole is smaller than the diameter of the inlet flow hole, so that the residence time of the refrigerant in the assembly space is prolonged.

[0054] In the description of the present utility model, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", "right" and the like indicating orientation or positional relationship appear, it should be understood that the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" 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, or it can be the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A sealing end cover with a temperature regulating structure, characterized in that: include: A main body supporting member, wherein the main body supporting member has an assembly space, wherein the assembly space has an assembly space whose shape matches the outer wall surface of the static ring of the sealing mechanism, and the static ring can be installed in the main body supporting member and supported by the main body supporting member; An axial limiting member is formed in the main supporting member, and its shape is adapted to the end face of the stationary ring. The axial limiting member is used to axially limit the stationary ring in the main supporting member; An assembly positioning member is formed in the main body support member and is adapted to the shape of the support housing of the sealing mechanism. The assembly positioning member can be installed on the end of the support housing through a connector adapted thereto, and the main body support member is positioned by the assembly positioning member; A rotating shaft shielding member is formed in the main body supporting member, and has a shielding space inside thereof that matches the shape of the rotating shaft end, and the rotating shaft shielding member shields and protects the rotating shaft end; An inlet flow transfer component is formed in the main body support component and communicated with the inside of the main body support component, and can be communicated with a refrigerant supply device through the inlet flow transfer component. The refrigerant supply device delivers refrigerant to the main body support component through the inlet flow transfer component to cool the main body support component; A reflux transfer component is formed in the main body support component and is connected to the inside of the main body support component. The reflux transfer component can be connected to the refrigerant recovery device through the reflux transfer component. The refrigerant in the main body support component can be returned to the refrigerant recovery device through the reflux transfer component.

2. The sealing end cover with a temperature regulating structure according to claim 1, characterized in that: The main support member comprises: The supporting base cylinder has a cylindrical assembly space inside, the outer wall of the stationary ring abuts against the inner wall of the supporting base cylinder, and the supporting base cylinder radially supports the stationary ring.

3. The sealing end cover with a temperature regulating structure according to claim 2, characterized in that: The axial limiting component includes: A primary step ring is formed on the inner wall of the support base tube, extends along the circumference of the support base tube, and protrudes radially toward the inner side of the support base tube. The primary step ring performs primary positioning on the end face of the stationary ring; A secondary step ring is formed on the inner wall of the support base tube, extends along the circumference of the support base tube, and protrudes radially toward the inner side of the support base tube. Its height is greater than that of the primary step ring, and the secondary step ring performs secondary positioning on the end face of the stationary ring; The final step ring is formed on the inner wall of the supporting base tube. It extends along the circumference of the supporting base tube and protrudes radially toward the inner side of the supporting base tube. Its height is greater than that of the secondary step ring. The final step ring performs final positioning on the end face of the stationary ring.

4. The sealing end cover with a temperature regulating structure according to claim 2, characterized in that: The assembly and positioning components include: The assembly notches have a group, each of which is respectively opened on the outer wall of the support base tube, axially penetrates both ends of the support base tube, and is arranged in sequence along the circumference of the support base tube, and is adapted to the shape of the bolt head of the locking bolt; The positioning inner edge has a group, each positioning inner edge is formed on the inner wall of the assembly notch, protrudes radially toward the inner side of the assembly notch, and is adapted to the shape of the bolt rod of the locking bolt.

5. The sealing end cover with a temperature regulating structure according to claim 2, characterized in that: The rotating shaft shielding component comprises: A shielding convex ring is formed at the outer end of the supporting base cylinder and protrudes axially toward the outside of the supporting base cylinder. The interior of the shielding convex ring is provided with a avoidance opening connected to the assembly space. The end of the rotating shaft connected to the stationary ring can be exposed from the avoidance opening, and the end of the rotating shaft is shielded and protected by the shielding convex ring.

6. The sealing end cover with a temperature regulating structure according to claim 2, characterized in that: The inlet flow transfer components include: An inlet port is provided on the outer wall of the supporting base tube and extends radially along the supporting base tube. A supply pipeline of a refrigerant supply device can be screwed into the inlet port through a thread. The inlet flow hole is opened in the inlet port and is connected with the assembly space inside the support base cylinder. Refrigerant can be supplied to the assembly space through the inlet flow hole to adjust the temperature of the support base cylinder and the static ring.

7. The sealing end cover with a temperature regulating structure according to claim 6, characterized in that: The drainage adapter component includes: A discharge port is provided on the outer wall of the supporting base tube and extends radially along the supporting base tube. The return pipe of the refrigerant recovery device can be screwed into the discharge port through a thread; A discharge flow hole is provided in the discharge port and is communicated with the assembly space inside the supporting base cylinder. The assembly space can transport the refrigerant to the refrigerant recovery device through the discharge flow hole.

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