Connecting pipe assembly for distributor

Abstract

The utility model belongs to the technical field of heat exchangers, particularly relates to a connecting pipe assembly for a distributor, and solves the problem that fluid is difficult to uniformly distribute to each liquid outlet hole of the distributor due to the lack of a buffer mixing or turbulent flow assembly between an input pipe and the distributor in the prior art. The connecting pipe assembly for the distributor is connected with a liquid inlet part of the distributor and comprises a tubular main body, a connecting section of the tubular main body is detachably connected with a liquid inlet hole of the liquid inlet part, the connecting section is sealed by an end plate, and a plurality of via holes are formed in the end plate. The perforated end plate is arranged on the fluid flowing channel, so that fluid mixing buffering is achieved, the uniformity effect is improved, and uniform distribution of a subsequent distributor is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heat exchanger technical field, especially relate to a pipe connection assembly for distributor. BACKGROUND

[0002] The distributor of heat exchanger is the key component in heat exchange system, mainly used for ensuring that fluid is evenly distributed to improve heat exchange efficiency and system stability. It can evenly distribute the fluid (liquid or gas) entering the heat exchanger into each heat exchange pipe or channel.

[0003] However, most of the distributors in the prior art are directly connected with the corresponding fluid output pipe, and the fluid directly flows to the distributor, and there is no structure for buffering mixing or turbulence between them, which is not conducive to the uniform distribution of the fluid into each liquid outlet hole of the distributor. INNOVATION

[0004] The utility model discloses a pipe connection assembly for distributor to solve the above problems in the prior art.

[0005] In order to realize the purpose of the utility model, the following technical solutions can be used:

[0006] A pipe connection assembly for distributor is connected with the liquid inlet part of the distributor, including a tubular body, the connecting section of the tubular body is detachably connected with the liquid inlet hole of the liquid inlet part, the connecting section is closed by an end plate, and a plurality of through holes are formed in the end plate.

[0007] The pipe connection assembly is used to connect the distributor and the fluid input pipe, the fluid input pipe is used to input the heat exchange medium fluid into the distributor, and the heat exchange medium fluid is evenly distributed to each shunt pipe by the distributor. The main part of the pipe connection assembly is a tubular body, one end of which is open, and the open end is used to connect with the fluid input pipe, and the other end is closed by an end plate. However, the through holes are provided on the closed end to allow the fluid to pass through, and the through holes are provided to promote fluid mixing through turbulence, thereby ensuring that the fluid downstream of the distributor is evenly distributed.

[0008] In the above-mentioned pipe connection assembly for distributor, the end plate is flush with the front end of the connecting section.

[0009] Alternatively, the end plate is recessed in the connecting section, and an anti-collision space is formed between the outer end face of the end plate and the front end face of the connecting section.

[0010] The end plate is provided at the most front end of the connecting section, or at a position away from the most front end by a certain distance. At this time, a safety space is formed between the end plate and the outer end of the connecting section, which reduces the possibility of deformation or even damage of the end plate caused by collision.

[0011] In the adapter assembly for the dispenser, the cross section of the through hole is one or more of a circle and a polygon.

[0012] The shape of the through hole can be various, but a circle is preferred for easy processing.

[0013] In the adapter assembly for the dispenser, the through hole is an axial hole, and the extension direction is adapted to the axial direction.

[0014] Alternatively, the through hole is an inclined hole, and the extension direction is between the axial direction and the radial direction.

[0015] The extension direction of the through hole can be axial or slightly inclined relative to the axial direction. The inclined hole causes the fluid to change from the axial direction to a circumferential rotation deviation and / or a radial in-out deviation direction when flowing through the hole, has a certain flow disturbance function, and is beneficial to the uniform mixing of the fluid.

[0016] In the adapter assembly for the dispenser, the rotation angle of the inclined hole is greater than 0, and the eccentricity is greater than or equal to 0.

[0017] The rotation angle refers to the circumferential deflection angle of the inclined hole in the axial view, and the eccentricity refers to the radial distance difference between the axial projection of the two ends of the inclined hole and the axis. From the axial direction, a rotation angle greater than 0 means that the fluid flowing through the hole is circumferentially rotated, and an eccentricity greater than 0 means that the fluid flowing through the hole is radially outwardly deviated, further ensuring the uniformity of mixing and enhancing the flow disturbance effect, while also being able to reduce the axial impact force of the fluid on the downstream.

[0018] In the adapter assembly for the dispenser, the end plate is integrally connected or welded to the tubular body.

[0019] Alternatively, the outer side wall of the end plate and the inner side wall of the tubular body are connected through a threaded structure.

[0020] Alternatively, the end plate and the tubular body are fixed by an axial pin shaft, and the end plate and the tubular body are provided with pin grooves matched with the pin shaft on the circumferential surface.

[0021] Alternatively, the end plate and the tubular body are fixed by a radial screw, and the tubular body is provided with a fixed screw hole for the screw to pass through, and the fixed screw hole is a counterbore.

[0022] The end plate can be integrally connected or welded to the tubular body, has higher connection strength and stability, and can also be fixed by means such as threads, pin shafts or set screws, to ensure flexible detachability.

[0023] In the adapter assembly for the dispenser, the outer side wall of the connecting section is provided with external threads, the inner side wall of the outer end of the liquid inlet hole is provided with internal threads, the external threads and the internal threads are connected by engagement, and the liquid inlet hole is provided with an annular step.

[0024] The connecting section is connected to the liquid inlet hole by threads, the fixing is convenient for disassembly and assembly, the annular step is used for radially limiting the installation position of the tubular body, i.e., the screwing depth, the connecting section is tightly abutted against the annular step after being screwed, and the possibility of reverse unscrewing of the connecting section is reduced. As a further optimization, the step surface of the annular step and / or the front end surface of the connecting section can be processed into a rough surface, and the possibility of automatic reverse screwing of the tubular body is reduced.

[0025] In the adapter assembly for the dispenser, the inner end surface of the end plate away from the dispenser is provided with a flow guide cone, and the through holes are distributed on the periphery of the flow guide cone.

[0026] The flow guide cone is provided with a conical surface in the form of a cone or a pyramid, which can guide the fluid to the through holes.

[0027] In the adapter assembly for the dispenser, the end plate is detachably provided with a cover plate, and the outer end surface of the cover plate is tightly attached to the end plate.

[0028] The cover plate is provided with a connecting through hole, and the outer end surface of the end plate is provided with a connecting screw hole, a connecting bolt is inserted through the connecting through hole and connected to the connecting screw hole by engagement.

[0029] The inner end surface of the cover plate is provided with a plurality of sealing protrusions corresponding to the through holes, and the sealing protrusions are in the shape of a circular table or a prismatic table matched with the through holes.

[0030] The cover plate is detachably provided on the end plate by a connecting bolt, and the cover plate can close the front end of the connecting pipe when the dispenser is not connected, which can prevent foreign matter from entering and also play a sealing role similar to a plug to close the through holes. The inner end surface of the cover plate is provided with a sealing protrusion, the axial cross section of the sealing protrusion is a trapezoid, the inclined surface of the trapezoid is tightly attached to the outer end periphery of the through hole, and the sealing performance is ensured.

[0031] In the adapter assembly for the dispenser, the dispenser includes a liquid inlet part in the form of a circular tube and a dispensing part in the form of a cone, the liquid inlet part and the dispensing part are integrally connected, the liquid inlet part is provided with the liquid inlet hole, and the outer end of the liquid inlet hole is provided with an easy-to-enter chamfer.

[0032] The distributor is composed of an inlet part and a distribution part, an easy-to-insert chamfer on the inlet hole is used for guiding the insertion of the tubular body, the small-end of the distribution part is integrally connected with the inlet part, the outlet holes extending outward are arranged between the small-end and the large-end, and each outlet hole is distributed in a shape similar to a horn, and each shunt pipe is connected to the outer end of the outlet hole.

[0033] Compared with the prior art, the utility model mainly has the following advantages:

[0034] 1. The open end of the tubular body is used for being connected with the fluid input pipe, the other end is closed by the end plate, but the through hole is arranged on the closed end to allow the fluid to pass through, and the arrangement of the through hole promotes the mixing of the fluid through the turbulence effect, thereby ensuring the uniform distribution of the fluid downstream of the distributor.

[0035] 2. The end plate can be arranged at a position away from the front end by a certain distance, at this time, a safety space is formed between the end plate and the outer end of the connecting section, and the possibility of deformation or even damage of the end plate caused by collision is reduced.

[0036] 3. The through hole can be an inclined hole extending obliquely, and the fluid changes from the axial direction to the circumferential rotation deviation and / or the radial in-out deviation direction when flowing through, which is more conducive to the uniform mixing of the fluid and enhances the turbulence effect.

[0037] 4. The end plate can be integrally or weldedly fixed with the tubular body, has higher connection strength and stability, and can also be fixed through modes such as threads, pins or set screws, to ensure flexible detachability.

[0038] 5. The guide cone is provided with a conical surface in a conical or pyramid shape, which can guide the fluid to the through hole.

[0039] 6. The end plate is detachably provided with a cover plate through connecting bolts, the cover plate can close the end of the connecting pipe when the distributor is not connected, can prevent sundries from entering, and can also play a sealing role similar to a plug, the through hole is closed, the inclined surface of the sealing convex body on the cover plate is in close contact with the outer end of the through hole, and the sealing performance is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a schematic view of the connection of the pipe joint assembly and the distributor provided by the utility model;

[0041] Figure 2 is a cross-sectional schematic view of the connection of the pipe joint assembly and the distributor provided by the utility model (embodiment 1);

[0042] Figure 3 is a structural schematic view of the tubular body provided by the utility model (embodiment 1);

[0043] Figure 4 is a cross-sectional schematic view of the tubular body provided by the utility model (embodiment 2);

[0044] Figure 5 is a schematic diagram of the extension direction of the via on the end plate (embodiment 3) provided by the utility model;

[0045] Figure 6 is a schematic diagram of the cross section of the end plate provided by the utility model with a cover plate (embodiment 4).

[0046] In the figure, the distributor 1, the liquid inlet part 2, the tubular main body 3, the connecting section 4, the liquid inlet hole 5, the end plate 6, the via 7, the anti-collision space 8, the inclined hole 9, the annular step 10, the flow guide cone 11, the cover plate 12, the connecting through hole 13, the connecting screw hole 14, the connecting bolt 15, the sealing convex body 16, the distribution part 17, the easy-to-enter chamfer 18, and the liquid outlet hole 19. DETAILED DESCRIPTION

[0047] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0048] Embodiment 1

[0049] The specific embodiment is as shown in the figure. Figures 1-3 The pipe connecting assembly for the distributor is connected with the liquid inlet part 2 of the distributor 1 and includes the tubular main body 3. The connecting section 4 of the tubular main body 3 is detachably connected with the liquid inlet hole 5 of the liquid inlet part 2. The connecting section 4 is closed by the end plate 6 which is integrally connected. A plurality of vias 7 are formed in the end plate 6. The end plate 6 is flush with the front end of the connecting section 4. The via 7 is an axial hole with a circular cross section, and the extension direction is adapted to the axial direction.

[0050] Specifically, the pipe connecting assembly is used to connect the distributor 1 and the fluid input pipe. The fluid input pipe is used to input the heat exchange medium fluid into the distributor 1 and then uniformly distribute the fluid to each shunt pipe. The main part of the pipe connecting assembly is the tubular main body 3. One end of the tubular main body 3 is open and used to be connected with the fluid input pipe. The other end is closed by the end plate 6. However, the via 7 is arranged on the closed end to allow the fluid to pass through. The arrangement of the via 7 promotes the mixing of the fluid through the flow disturbance effect, thereby ensuring the uniform distribution of the fluid downstream of the distributor 1.

[0051] In this embodiment, the outer side wall of the connecting section 4 is provided with external threads, the inner side wall of the outer end of the liquid inlet hole 5 is provided with internal threads, the external threads and the internal threads are engaged and connected, the liquid inlet hole 5 is provided with an annular step 10, and the front end of the connecting section 4 abuts against the annular step 10.

[0052] Specifically, the connecting section 4 is connected with the liquid inlet hole 5 through threads (not shown in detail), the fixing is convenient for disassembly and assembly, the annular step 10 is used for radially limiting the installation position of the tubular body 3, i.e. the screwing depth, after screwing, the connecting section 4 is tightly abutted with the annular step 10, and the possibility of reverse unscrewing of the connecting section 4 is reduced. In addition, the step surface of the annular step 10 and the front end surface of the connecting section 4 are processed into rough surfaces, and the possibility of automatic reverse unscrewing of the tubular body 3 is reduced.

[0053] As the optimization of the embodiment, the end plate 6 is provided with a flow guide cone 11 away from the inner end surface of the distributor 1, and the through holes 7 are distributed on the periphery of the flow guide cone 11. The flow guide cone 11 is provided with a conical surface in a conical or pyramidal shape, which can guide the fluid to the through holes 7.

[0054] As shown in Figure 1 , 2 , the distributor 1 comprises a circular tubular liquid inlet part 2 and a conical distribution part 17, the liquid inlet part 2 and the distribution part 17 are integrally connected, the liquid inlet part 2 is provided with a liquid inlet hole 5, and the outer end of the liquid inlet hole 5 is provided with an easy-entry chamfer 18.

[0055] Specifically, the distributor 1 is composed of the liquid inlet part 2 and the distribution part 17, the easy-entry chamfer 18 on the liquid inlet hole 5 is used for guiding the insertion of the tubular body 3, the small end of the distribution part 17 is integrally connected with the liquid inlet part 2, the liquid outlet holes 19 extending outward are arranged between the small end and the large end, the liquid outlet holes 19 are distributed in a shape similar to a horn, and each shunt pipe is connected to the outer end of the liquid outlet hole 19.

[0056] Specific working principle: during installation, the open end of the tubular body 3 is connected with a fluid input pipe, and the connecting section 4 is screwed into the liquid inlet hole 5 to be connected with the distributor 1. During work, the fluid input pipe inputs fluid, the fluid is transported to the distributor 1 through the through holes 7 of the end plate 6, and finally is shunted to each shunt pipe from each liquid outlet hole 19 of the distributor 1.

[0057] Embodiment 2

[0058] The specific working principle of the embodiment is basically the same as that of embodiment 1, and the difference lies in the setting position of the end plate 6.

[0059] Specific embodiments such as Figure 4 As shown in the figure, the end plate 6 is recessed in the connecting section 4, and the anti-collision space 8 is formed between the outer end surface of the end plate 6 and the front end surface of the connecting section 4.

[0060] Specifically, the end plate 6 is arranged at a position away from the front end of the tubular body 3 by a certain distance, at this time, a safety space is formed between the end plate 6 and the outer end of the connecting section 4, and the possibility of deformation or even damage of the end plate 6 caused by collision is reduced.

[0061] Embodiment 3

[0062] The specific working principle of the embodiment is basically the same as that of embodiment 1, and the difference lies in the extension direction of the through hole 7.

[0063] The specific implementation is as follows: Figure 5 As shown in the figure, the through hole 7 is a slant hole 9, and the extension direction is between the axial direction and the radial direction. The rotation angle and the eccentricity of the slant hole 9 are both greater than 0.

[0064] Specifically, the through hole 7 is in the form of a slant hole 9, and the fluid flow is circumferentially rotated and offset when passing through the hole 7, and is also radially offset outward, which further ensures the uniformity of mixing, enhances the turbulence effect, and also reduces the axial impact force of the fluid on the downstream.

[0065] Embodiment 4

[0066] The specific working principle of the embodiment is basically the same as that of embodiment 1, and the difference lies in that the outer side of the end plate 6 is provided with a cover plate 12.

[0067] The specific implementation is as follows: Figure 6 As shown in the figure, the cover plate 12 is detachably arranged on the end plate 6, and the outer end face of the cover plate 12 is tightly attached to the end plate 6; the connecting through hole 13 is arranged on the cover plate 12, and the connecting screw hole 14 is arranged on the outer end face of the end plate 6; the connecting bolt 15 is arranged through the connecting through hole 13 and is connected with the connecting screw hole 14; the inner end face of the cover plate 12 is provided with a plurality of sealing convex bodies 16 corresponding to the through holes 7, and the sealing convex bodies 16 are in the shape of a circular truncated cone matched with the through holes 7; the outer end of the through hole 7 is provided with a matching inclined surface matched with the taper surface of the sealing convex body 16.

[0068] Specifically, the cover plate 12 is detachably arranged on the end plate 6 through the connecting bolt 15, and the cover plate 12 can be capped at the front end of the connecting section 4 when the distributor 1 is not connected, which can prevent foreign matter from entering and also play a sealing role similar to a plug to close the through hole 7; the inner end face of the cover plate 12 is provided with the sealing convex body 16, and the axial cross section of the sealing convex body 16 is a trapezoidal shape, and the taper surface thereof is tightly attached to the matching inclined surface of the through hole 7 to ensure the sealing property.

[0069] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A spout assembly for a dispenser, associated with a liquid inlet (2) of the dispenser (1), characterized in that, The application relates to a distributor (1) comprising a tubular body (3), a connecting section (4) of the tubular body (3) being detachably connected with a liquid inlet hole (5) of a liquid inlet part (2), the connecting section (4) being closed by an end plate (6), and a plurality of through holes (7) being formed in the end plate (6).

2. The spout assembly for a dispenser of claim 1, wherein, The end plate (6) is flush with the front end of the connecting section (4). Alternatively, the end plate is recessed in the connecting section, and an anti-collision space (8) is formed between the outer end surface of the end plate (6) and the front end surface of the connecting section (4).

3. The spout assembly for a dispenser of claim 1, wherein, The cross section of the through hole (7) is one or more of a circle and a polygon.

4. The spout assembly for a dispenser of claim 1, wherein, The through hole (7) is an axial hole, and the extension direction is adapted to the axial direction. Alternatively, the through hole (7) is an inclined hole (9), and the extension direction is between the axial direction and the radial direction.

5. The spout assembly for a dispenser of claim 4, wherein, The rotation angle of the inclined hole (9) is greater than 0, and the eccentric distance is greater than or equal to 0.

6. The spout assembly for a dispenser of claim 1, wherein, The end plate (6) is integrally connected with or fixedly welded to the tubular body (3). Alternatively, the outer side wall of the end plate (6) is connected with the inner side wall of the tubular body (3) through a threaded structure. Alternatively, the end plate (6) and the tubular body (3) are fixedly connected through an axial pin shaft, and the end plate and the tubular body are provided with pin grooves matched with the pin shaft on the circumferential surfaces. Alternatively, the end plate (6) and the tubular body (3) are fixed through a radial screw, and a fixing screw hole for the screw to pass through is radially arranged on the pipe wall of the tubular body, and the fixing screw hole is a counterbore.

7. The spout assembly for a dispenser of claim 1, wherein, An outer thread is arranged on the outer side wall of the connecting section (4), an inner thread is arranged on the inner side wall of the outer end of the liquid inlet hole (5), the outer thread and the inner thread are engaged and connected, an annular step (10) is arranged in the liquid inlet hole (5), and the front end of the connecting section (4) abuts against the annular step (10).

8. The spout assembly for a dispenser of claim 1, wherein, A flow guide cone (11) is arranged on the inner end surface of the end plate (6) away from the distributor (1), and the through holes (7) are distributed on the periphery of the flow guide cone (11).

9. A spout assembly for a dispenser as claimed in any one of claims 1 to 8, wherein, A cover plate (12) is detachably arranged on the end plate (6), and the cover plate (12) is tightly attached to the outer end surface of the end plate (6). A connecting through hole (13) is arranged through the cover plate (12), a connecting screw hole (14) is arranged on the outer end surface of the end plate (6), a connecting bolt (15) passes through the connecting through hole (13) and is engaged and connected with the connecting screw hole (14). A plurality of sealing convex bodies (16) corresponding to the through holes (7) are arranged on the inner end surface of the cover plate (12), and the sealing convex bodies (16) are in the shape of a circular truncated cone or a prismatic truncated cone matched with the through holes (7).

10. A spout assembly for a dispenser as claimed in any one of claims 1 to 8, wherein, The distributor (1) comprises a circular tubular liquid inlet part (2) and a conical distribution part (17), the liquid inlet part (2) and the distribution part (17) are integrally connected, the liquid inlet hole (5) is arranged in the liquid inlet part (2), and an easy-to-enter chamfer (18) is arranged at the outer end of the liquid inlet hole (5).

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