Guide connecting seat of heat exchanger

Abstract

The heat exchanger comprises a liquid inlet pipe and a plurality of heat exchange pipes, the guide connecting seat comprises a seat body, the seat body is provided with a first connecting end and a second connecting end which are opposite to each other, the first connecting end is connected with the liquid inlet pipe, and the second connecting end is connected with the liquid inlet pipe. The second connecting end is connected with the plurality of heat exchange tubes; a plurality of flow dividing channels penetrating through the first connecting end and the second connecting end at the same time are arranged in the base body, the flow dividing channels gradually incline or bend outwards in the direction from the first connecting end to the second connecting end, and each flow dividing channel is communicated with one heat exchange pipe. According to the utility model, the shunting channels are gradually inclined or bent outwards along the flowing direction of the feed liquid, so that compared with the original arrangement of transverse and longitudinal pipelines, the feed liquid flows more smoothly in the shunting pipelines, the pressure loss is smaller, and turbulent flow is not easy to generate.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a guide connecting seat of a heat exchanger. Background Art

[0002] A heat exchanger is a device used to transfer heat between two or more fluids without requiring direct contact. They are widely used in various industrial processes, HVAC systems, refrigeration systems, and power plants. The fluids must flow simultaneously through multiple heat exchange tubes through an inlet pipe to achieve heat exchange.

[0003] In order to achieve the diversion of the feed liquid, existing heat exchangers are equipped with a connecting seat between the heat exchange tubes and the liquid inlet pipe, and the diversion of the feed liquid is achieved through the connecting seat. However, since the heat exchange tubes are distributed at various positions in the heat exchanger, but the liquid inlet pipe is located in the middle of the heat exchanger, this results in the diversion channel in the connecting seat having not only a longitudinal channel but also a transverse channel, so that the lower end of the diversion channel can communicate with the heat exchange tubes at various positions. Therefore, the connection between the transverse pipe and the longitudinal pipe is bound to be at a right angle, and the flow rate of the feed liquid in the transverse pipe and the longitudinal pipe is uneven. The feed liquid directly hits the right angle, generating turbulence and a large pressure loss. Therefore, when the feed liquid enters the heat exchange tube, it will encounter problems such as uneven flow rate, low pressure, and turbulence. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to propose a guide connecting seat for a heat exchanger, which is used to solve the problems of turbulent flow, low pressure and uneven flow rate of the feed liquid in the heat exchanger in the prior art.

[0005] The technical solution adopted by the utility model to solve the technical problem is a guide connecting seat of a heat exchanger, wherein the heat exchanger includes a liquid inlet pipe and a plurality of heat exchange pipes, and the guide connecting seat includes:

[0006] A base body, the base body having a first connecting end and a second connecting end opposite to each other, the first connecting end being connected to the liquid inlet pipe, and the second connecting end being connected to the plurality of heat exchange tubes;

[0007] A plurality of diversion channels are provided in the seat body and pass through the first connection end and the second connection end at the same time. The diversion channels are gradually inclined or bent outward from the first connection end toward the second connection end. Each of the diversion channels is connected to one of the heat exchange tubes.

[0008] Furthermore, the seat body includes an inner platform and an outer shell, and a plurality of diversion channels are formed between the side wall of the inner platform and the inner wall of the outer shell.

[0009] Further, the side wall of the inner platform is gradually inclined outward from the first connecting end to the second connecting end to form a guide surface.

[0010] Further, the included angle between the guide surface and the axis of the liquid inlet pipe is equal everywhere.

[0011] Further, the included angle between the guide surface and the axis of the liquid inlet pipe gradually increases from the first connecting end to the second connecting end.

[0012] Further, the inner platform is in the shape of a circular truncated cone.

[0013] Further, the inner wall of the shell has a first connecting section and a second connecting section connected to each other, and the first connecting section is at one end of the second connecting section towards the liquid inlet pipe.

[0014] The second connecting section is perpendicular to the cross section of the heat exchange pipe.

[0015] Further, a plurality of the shunt channels are uniformly distributed along the circumference of the seat body.

[0016] Further, the cross-sectional area of the shunt channel gradually decreases from the first connecting end to the second connecting end.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects:

[0018] (1) The shunt channel is gradually inclined or curved outward along the flow direction of the material liquid, so that the shunt channel not only has the shunting effect, but also guides the flow direction of the material liquid, so that the material liquid can flow more smoothly along the inner wall of the shunt channel from the upper end to the lower end. Compared with the original horizontal and vertical pipe arrangement, the flow of the material liquid in the shunt pipe is more smooth, the pressure loss is smaller, and the turbulent flow is not easy to occur.

[0019] (2) The cross-sectional area of the shunt channel gradually decreases from top to bottom, so that the outlet of the lower end of the shunt channel is the smallest, and the pressure at this position is greater than that at other positions of the shunt channel. This can make the material liquid entering the heat exchange pipe have enough kinetic energy to fill every position, so as to ensure that there is no large area of bubbles in the heat exchange pipe, thereby increasing the contact area of the heat exchange pipe and the material liquid and enhancing the heat exchange effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a sectional view of the heat exchanger in the embodiment;

[0021] Fig. 2 It is a sectional view of the guide connecting seat in the embodiment;

[0022] Fig. 3 It is a bottom view of the guide connecting seat in the embodiment;

[0023] Fig.:

[0024] 100, liquid inlet pipe;

[0025] 200, heat exchange pipe;

[0026] 300, guide connecting seat; 310, inner platform; 311, guide surface; 320, outer shell; 321, first connecting section; 322, second connecting section. DETAILED DESCRIPTION

[0027] The following is a specific embodiment of the present application and further describes the technical scheme of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0028] Please refer to Figs. 1-3 The utility model discloses a guide connecting seat of heat exchanger, the heat exchanger includes liquid inlet pipe 100 and multiple heat exchange pipes 200, the guide connecting seat 300 includes:

[0029] The seat body has the first connecting end and the second connecting end that are opposite to each other, the first connecting end is connected with the liquid inlet pipe 100, and the second connecting end is connected with the multiple heat exchange pipes 200.

[0030] Multiple shunt channels that simultaneously penetrate the first connecting end and the second connecting end are arranged in the seat body, the shunt channels gradually incline or bend outward in the direction from the first connecting end to the second connecting end, and each shunt channel is in communication with one heat exchange pipe 200.

[0031] The application arranges multiple shunt channels in the guide connecting seat 300, realizes the shunting of the liquid, and makes the end of each shunt channel in communication with one heat exchange pipe 200, so as to ensure that the liquid simultaneously enters the multiple heat exchange pipes 200 after being shunted from the liquid inlet pipe 100.

[0032] Importantly, the shunt channels gradually incline or bend outward in the flow direction of the liquid, so that the shunt channels not only have the shunting effect, but also guide the flow direction of the liquid, and the liquid can flow more smoothly along the inner wall of the shunt channels from the upper end to the lower end. Compared with the original horizontal and vertical pipeline arrangement, the liquid flows more smoothly in the shunt channels, and the pressure loss is smaller, and turbulence is less likely to occur.

[0033] Further, the seat body includes an inner platform 310 and an outer shell 320, and multiple shunt channels are formed between the side wall of the inner platform 310 and the inner wall of the outer shell 320.

[0034] Further, the side wall of the inner platform 310 gradually inclines outward in the direction from the first connecting end to the second connecting end to form a guide surface 311.

[0035] Specifically, when the feed liquid flows to the upper end of the distribution channel from the liquid inlet pipe 100, the flow direction is vertical (assuming that the heat exchanger is longitudinally arranged), and after the feed liquid flows to the guide surface 311, the feed liquid gradually flows outward along the guide surface 311, thereby achieving a smooth transition of the feed liquid from the liquid inlet pipe 100 to the heat exchange pipe 200.

[0036] Further, the included angle between the guide surface 311 and the axis direction of the liquid inlet pipe 100 is equal at all positions.

[0037] The included angle between the guide surface 311 and the axis direction of the liquid inlet pipe 100 is equal at all positions, which means that the line of the guide surface 311 on any longitudinal section is a tilted line segment. The advantage of this arrangement is that it facilitates the processing of the guide surface 311.

[0038] Further, the included angle between the guide surface 311 and the axis direction of the liquid inlet pipe 100 gradually increases from the first connecting end to the second connecting end.

[0039] The included angle between the guide surface 311 and the axis direction of the liquid inlet pipe 100 gradually increases from top to bottom, and it means that the line of the guide surface 311 on any longitudinal section is a curved arc. The advantage of this arrangement is that the included angle between the guide surface 311 and the vertical direction gradually increases from top to bottom, and the guiding effect of the guide surface 311 on the feed liquid gradually increases from top to bottom, so that the feed liquid can flow more smoothly along the guide surface 311, the flow is more uniform, the pressure loss is smaller, and turbulence is less likely to occur.

[0040] Further, the inner platform 310 is arranged in a circular truncated cone shape.

[0041] Further, the inner wall of the outer shell 320 has a first connecting segment 321 and a second connecting segment 322 connected to each other, and the first connecting segment 321 is located at one end of the second connecting segment 322 facing the liquid inlet pipe 100.

[0042] Among them, the second connecting segment 322 is perpendicular to the cross section of the heat exchange pipe 200.

[0043] Specifically, when the feed liquid flows vertically from the liquid inlet pipe 100 to the guide surface 311, the feed liquid gradually flows outward and downward along the guide surface 311, and after the feed liquid flows to the end of the guide surface 311, the feed liquid flows downward along the second connecting segment 322. It can be seen that the flow direction of the feed liquid at the second connecting segment 322 is vertical, and when the feed liquid continues to flow to the heat exchange pipe 200, the feed liquid can continue to flow along the axis of the heat exchange pipe 200, which makes the feed liquid flow from the second connecting segment 322 to the heat exchange pipe 200 without changing its flow direction. The advantage of this arrangement is that the flow velocity of the feed liquid in the heat exchange pipe 200 is more uniform, turbulence is less likely to occur, and pressure loss is smaller.

[0044] Further, the plurality of the shunt channels are evenly distributed along the circumference of the seat body.

[0045] Further, the cross-sectional area of the shunt channel gradually decreases from the first connecting end towards the second connecting end.

[0046] Specifically, since the cross-sectional area of the shunt channel gradually decreases from top to bottom, the outlet at the lower end of the shunt channel is the smallest, and the pressure at this position is greater than that at other positions of the shunt channel, which can enable the material liquid to have sufficient kinetic energy to fill every position after entering the heat exchange pipe 200, so as to ensure that there is no large area of bubbles in the heat exchange pipe 200, thereby increasing the contact area of the heat exchange pipe 200 and the material liquid and enhancing the heat exchange effect.

[0047] It should be noted that all directional indications, such as up, down, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0048] In addition, the descriptions such as "first", "second", "one" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0049] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

Claims

1. A guide connection seat of a heat exchanger, the heat exchanger comprising a liquid inlet pipe and a plurality of heat exchange pipes, characterized in that, The guiding connecting seat comprises: a seat body having a first connecting end and a second connecting end opposite to each other, the first connecting end being connected with the liquid inlet pipe, and the second connecting end being connected with a plurality of heat exchange pipes; a plurality of shunt channels are arranged in the seat body and penetrate the first connecting end and the second connecting end at the same time, the shunt channels gradually incline or curve outward from the first connecting end to the second connecting end, and each shunt channel is in communication with one heat exchange pipe.

2. The guiding connector of a heat exchanger according to claim 1, wherein The seat body comprises an inner table and an outer shell, and a plurality of shunt channels are formed between the side wall of the inner table and the inner wall of the outer shell.

3. The guiding connector of a heat exchanger according to claim 2, wherein The side wall of the inner table gradually inclines outward from the first connecting end to the second connecting end to form a guiding surface.

4. The guiding connector of a heat exchanger according to claim 3, wherein The included angle between the guiding surface and the axis direction of the liquid inlet pipe is equal everywhere.

5. The guiding connector of a heat exchanger according to claim 3, wherein The included angle between the guiding surface and the axis direction of the liquid inlet pipe gradually increases from the first connecting end to the second connecting end.

6. The guiding connector of a heat exchanger according to claim 2, wherein The inner table is in the shape of a circular truncated cone.

7. The guiding connector of a heat exchanger according to claim 2, wherein The inner wall of the outer shell has a first connecting section and a second connecting section connected with each other, and the first connecting section is located at one end of the second connecting section facing the liquid inlet pipe. The second connecting section is perpendicular to the cross section of the heat exchange pipe.

8. The guiding connector of a heat exchanger according to claim 1, wherein The plurality of shunt channels are uniformly distributed along the circumference of the seat body.

9. The guiding connector of a heat exchanger according to claim 1, wherein The cross-sectional area of the shunt channel gradually decreases from the first connecting end to the second connecting end.

Images