A heat exchanger pipe connecting structure

Abstract

The utility model discloses a heat exchanger pipeline connection structure, including the first sleeve pipe and the second sleeve pipe of same structure and the rubber ring and the fixed snap ring, the first sleeve pipe with the second sleeve pipe setting bearing pipe, two the bearing pipe butt joint, the rubber ring is set up on two bearing pipes, the fixed snap ring is located between the first sleeve pipe with the second sleeve pipe, the fixed snap ring sets up long bolt, and the inner end of long bolt is tightly pressed the rubber ring. The utility model sets up the rubber ring and realizes the sealing effect, and cooperation fixed snap ring and long bolt improve the anti -leakage performance, and convenient to use.

Description

Technical Field

[0001] This utility model relates to heat exchanger pipe connection, specifically a heat exchanger pipe connection structure. Background Technology

[0002] Connectors are used when connecting the heat exchanger body pipes to the inlet and outlet water pipes. Current connectors consist of two sleeves that are respectively fitted onto the body pipe and the inlet and outlet water pipes, and then fastened with two sealing rings and bolts, which poses a risk of leakage. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides a heat exchanger pipe connection structure. This utility model uses a rubber ring to achieve a sealing effect, and works in conjunction with a fixing ring and long bolts to improve leak prevention performance, making it convenient to use.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution: a heat exchanger pipe connection structure, including a first sleeve and a second sleeve with identical structures, as well as a rubber ring and a fixing ring. The first sleeve and the second sleeve are provided with bearing pipes, and the two bearing pipes are connected together. The rubber ring is sleeved on the two bearing pipes. The fixing ring is located between the first sleeve and the second sleeve, and the fixing ring is provided with a long bolt. The inner end of the long bolt is pressed against the rubber ring.

[0005] The first sleeve has a central hole for installing heat exchanger pipes, the outer side of the bearing pipe has a groove for holding the rubber ring, and the outer edge of the first sleeve has a fixing hole for fixing the fixing ring.

[0006] The rubber ring has rubber holes for fitting onto the bearing tube. The outer surface of the rubber ring has two annular grooves, and a clamping ring is installed in each annular groove. The two annular grooves are symmetrical.

[0007] The clamping ring is long and narrow, with fixing plates at both ends, and the two fixing plates are fastened together with bolts.

[0008] At least two tightening grooves are provided on the outer surface of the rubber ring. The tightening grooves are evenly distributed around the circumference and are located in the middle of the rubber ring.

[0009] The inner end of the long bolt is rounded, and the tightening groove is an arc-shaped groove.

[0010] The retaining ring is a ring structure formed by splicing two halves, with a rubber pad on the splicing surface; the retaining ring is provided with a retaining ring hole, the inner diameter of which is larger than the outer diameter of the rubber ring.

[0011] The retaining ring has a threaded hole in the radial direction at the middle position, and the long bolt is located in the threaded hole.

[0012] The retaining ring has connection holes on both sides of its outer edge for fixed connection with the first sleeve and the second sleeve.

[0013] In summary, this utility model achieves the following technical effects: The first and second sleeves have the same structure and are processed uniformly. Any two sleeves can be connected together for use, resulting in low mold costs. The two sleeves are connected to the pipes and inlet / outlet water pipes of the heat exchanger body, respectively. The joint is sealed with an internal rubber ring to prevent leakage. The two sleeves are fixed together with a retaining ring, and the rubber ring is squeezed again with a long bolt for better sealing effect. Attached Figure Description

[0014] Figure 1 It is a heat exchanger pipe connection structure; Figure 2 This is a cross-sectional schematic diagram of the first casing; Figure 3 This is a cross-sectional schematic diagram of the rubber ring; Figure 4 This is a cross-sectional view of the retaining ring. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings.

[0016] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] Example: Figure 1 It is a heat exchanger pipe connection structure, including a first sleeve 1 and a second sleeve 2 with identical structures, as well as a rubber ring 3 and a fixing ring 4. The first sleeve 1 and the second sleeve 2 are provided with a support pipe 102, and the two support pipes 102 are connected together. The rubber ring 3 is sleeved on the two support pipes 102. The fixing ring 4 is located between the first sleeve 1 and the second sleeve 2. The fixing ring 4 is provided with a long bolt 5, and the inner end of the long bolt 5 is pressed against the rubber ring 3.

[0022] The first sleeve 1 and the second sleeve 2 have the same structure and are processed uniformly. Any two sleeves can be connected together for use, resulting in low mold opening costs. The two sleeves are respectively connected to the pipe 7 and the inlet and outlet water pipes 8 of the heat exchanger body. The joint is sealed by the internal rubber ring 3 to prevent leakage. The two sleeves are fixed together by the fixing ring, and the rubber ring is squeezed again by the long bolt 5 for better sealing effect.

[0023] Figure 2This is a cross-sectional view of the first sleeve. The first sleeve and the second sleeve have the same structure. This embodiment uses the first sleeve as an example. The first sleeve 1 is provided with a central hole 101 for installing heat exchanger pipes. The outer side of the bearing pipe 102 is provided with a groove 103 for holding the rubber ring 3. The outer edge of the first sleeve 1 is provided with a fixing hole 105 for fixing the fixing ring 4.

[0024] The two sleeves have their support rings 102 joined together to support the external rubber ring. A gap exists between the two support rings when joined. To prevent leakage from this gap, this invention incorporates a rubber ring. The rubber ring has a ring-shaped structure and a relatively large thickness to improve sealing performance. A groove 103 is provided to limit the two ends of the rubber ring 3. When the rubber ring is clamped by the clamping ring 6, causing contraction at the clamping point and deformation at other locations, the two ends deform due to compression, resulting in better contact with the groove 103 and improving the sealing effect. A fixing ring 104 is provided on the outer edge of the two sleeves for fixing the internal retaining ring 4, thus connecting the two sleeves.

[0025] Figure 3 This is a cross-sectional schematic diagram of the rubber ring 3. The rubber ring 3 is provided with rubber holes 301 for fitting onto the bearing tube 102. The outer surface of the rubber ring 3 is provided with two annular grooves 302, and a clamping ring 6 is provided in the annular grooves 302. The two annular grooves 302 are symmetrical.

[0026] The rubber ring 3 is clamped by two clamping rings 6. The clamping point is squeezed to make the connection between the ring and the bearing tube tighter and the leakage prevention better. This causes deformation at both ends and in the middle. The deformation at both ends makes better contact with the groove, further improving the leakage prevention effect. The deformation in the middle may cause it to lift up. This utility model sets a long bolt to tighten the middle, further improving the sealing performance.

[0027] The clamping ring 6 is elongated and has fixing plates 601 at both ends, which are fastened together with bolts. The clamping ring is made of stainless steel and its length is less than the outer diameter of the rubber ring. When tightened with bolts, it can contract to compress the rubber ring, thereby better gripping the bearing tube.

[0028] At least two tightening grooves 303 are provided on the outer surface of the rubber ring 3. The tightening grooves 303 are evenly distributed around the circumference and are located in the middle of the rubber ring 3.

[0029] The inner end of the long bolt 5 is a round head 501, and the tightening groove 303 is an arc-shaped groove.

[0030] The circular clamping structure allows for better contact between the long bolts and the rubber ring, preventing them from popping out. In this embodiment, four long bolts are evenly distributed around the circumference, which can clamp the rubber ring from four directions.

[0031] Figure 4This is a cross-sectional schematic diagram of the retaining ring 4. The retaining ring 4 is a ring structure formed by splicing two halves together, and a rubber pad is provided on the splicing surface. The retaining ring 4 is provided with a retaining ring hole 401, and the inner diameter L1 of the retaining ring hole 401 is larger than the outer diameter L2 of the rubber ring 3.

[0032] L1 is greater than L2, so that the retaining ring and the rubber ring do not contact each other, leaving space for the clamping ring 6 to be fixed.

[0033] The retaining ring 4 has a threaded hole 403 radially provided at the middle position, and the long bolt 5 is provided in the threaded hole 403 shown.

[0034] The tightness of the long bolts can be freely adjusted, resulting in a better sealing effect.

[0035] The fixing ring 4 has connection holes 402 on both sides of its outer edge for fixed connection with the first sleeve 1 and the second sleeve 2.

[0036] The two ends of the retaining ring are fixedly connected to the two sleeves respectively, so that the two sleeves are connected and fixed.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A heat exchanger pipe connection structure, characterized in that: Includes a first sleeve (1) and a second sleeve (2) with the same structure, as well as a rubber ring (3) and a retaining ring (4). The first sleeve (1) and the second sleeve (2) are provided with a bearing tube (102), and the two bearing tubes (102) are connected together. The rubber ring (3) is sleeved on the two bearing tubes (102). The retaining ring (4) is located between the first sleeve (1) and the second sleeve (2). The retaining ring (4) is provided with a long bolt (5), and the inner end of the long bolt (5) is pressed against the rubber ring (3).

2. The heat exchanger pipe connection structure according to claim 1, characterized in that: The first sleeve (1) is provided with a central hole (101) for installing heat exchanger pipes, and the outer side of the bearing pipe (102) is provided with a groove (103) for locking the rubber ring (3). The outer edge of the first sleeve (1) is provided with a fixing hole (105) for fixing the fixing ring (4).

3. The heat exchanger pipe connection structure according to claim 1, characterized in that: The rubber ring (3) is provided with a rubber hole (301) for sleeve on the bearing tube (102). The outer surface of the rubber ring (3) is provided with two ring grooves (302). A clamping ring (6) is provided in the ring groove (302). The two ring grooves (302) are symmetrical.

4. The heat exchanger pipe connection structure according to claim 3, characterized in that: The clamping ring (6) is long and strip-shaped, and both ends are provided with fixing pieces (601), which are fastened with bolts.

5. A heat exchanger pipe connection structure according to claim 3, characterized in that: At least two tightening grooves (303) are provided on the outer surface of the rubber ring (3). The tightening grooves (303) are evenly distributed around the circumference and are located in the middle of the rubber ring (3).

6. The heat exchanger pipe connection structure according to claim 5, characterized in that: The inner end of the long bolt (5) is a round head (501), and the tightening groove (303) is an arc-shaped groove.

7. The heat exchanger pipe connection structure according to claim 1, characterized in that: The fixing ring (4) is a ring structure formed by splicing two halves, and a rubber pad is provided on the splicing surface; the fixing ring (4) is provided with a ring hole (401), and the inner diameter of the ring hole (401) is larger than the outer diameter of the rubber ring (3).

8. A heat exchanger pipe connection structure according to claim 7, characterized in that: The retaining ring (4) has a threaded hole (403) radially arranged in the middle position, and the long bolt (5) is arranged in the threaded hole (403).

9. A heat exchanger pipe connection structure according to claim 7, characterized in that: The fixing ring (4) has connecting holes (402) on both sides of its outer edge for fixed connection with the first sleeve (1) and the second sleeve (2).

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