Heating core assembly

Abstract

The utility model relates to a heating core assembly which comprises a tube plate connected with a heating assembly. The heat exchange pipe is communicated with the pipe plate; at least two first baffle plates and at least two second baffle plates are arranged; the heat exchange tube penetrates through the first baffle plate or the second baffle plate; acute angles are formed between the first baffle plate and the heat exchange tube as well as between the second baffle plate and the heat exchange tube; all the first baffle plates are sequentially arranged in the length direction of the heat exchange tube, and the adjacent first baffle plates are obliquely arranged to form a continuous first spiral. The second baffle plates are sequentially arranged in the length direction of the heat exchange tube, and the adjacent second baffle plates are obliquely arranged to form a continuous second spiral; and the first spiral and the second spiral are wound. A first spiral and a second spiral which are continuous are respectively formed through the first baffle plate and the second baffle plate. When the heating core assembly heats fluid, the fluid spirally flows along the first spiral and the second spiral along the heat exchange tube, and the fluid is more uniformly heated by the heat exchange tube.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heater, especially relates to heating core subassembly. BACKGROUND

[0002] The baffle type electric heater is a common heating equipment in industry, a plurality of baffles of which force to change the direction of fluid flow in the heater, form transverse scour, destroy the boundary layer of fluid in the heating equipment and enhance the turbulent effect, thereby improve the heat transfer coefficient of the electric heater.

[0003] But the baffle type electric heater has flow dead zone, the fluid flow resistance and pressure drop in the heater are big, the heat exchange pipe of heating is easy to scale, is easy to have tube bundle vibration, even lead to heat exchange pipe fatigue fracture, influence the service life of the heater.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. UTILITY MODEL CONTENT

[0005] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a heating core subassembly to reduce the fluid flow resistance in the heater and reduce the pressure drop.

[0006] The technical scheme of the utility model is as follows:

[0007] A heating core subassembly, the heating core subassembly comprises:

[0008] A tube sheet connected to a heating assembly;

[0009] A heat exchange pipe in communication with the tube sheet;

[0010] A first baffle and a second baffle, each of which is provided with at least two blocks; the heat exchange pipe passes through the first baffle or the second baffle; the first baffle and the second baffle are arranged at an acute angle with the heat exchange pipe;

[0011] Wherein, along the length direction of the heat exchange pipe, all the first baffles are sequentially arranged, and the adjacent first baffles are arranged at an angle to form a continuous first spiral; along the length direction of the heat exchange pipe, the second baffles are sequentially arranged, and the adjacent second baffles are arranged at an angle to form a continuous second spiral; the first spiral and the second spiral are arranged in a spiral manner.

[0012] Further technical scheme, the tube sheet is provided with a fixing rod; the fixing rod is parallel to the heat exchange pipe; the first baffle and the second baffle are connected to the fixing rod respectively.

[0013] Further, the fixed rod is provided with external threads, and the first limiting sleeve is provided with internal threads to engage the external threads.

[0014] Further, the fixed rod is provided with external threads, and the first limiting sleeve is provided with internal threads to engage the external threads.

[0015] Further, the fixed rod is provided with external threads, and the first limiting sleeve is provided with internal threads to engage the external threads.

[0016] Further, the fixed rod is provided with external threads, and the first limiting sleeve is provided with internal threads to engage the external threads.

[0017] Further, the fixed rod is provided with external threads, and the first limiting sleeve is provided with internal threads to engage the external threads.

[0018] Further, the fixed rod is provided with external threads, and the first limiting sleeve is provided with internal threads to engage the external threads.

[0019] Further, the fixed rod is provided with external threads, and the first limiting sleeve is provided with internal threads to engage the external threads.

[0020] Further, the fixed rod is provided with external threads, and the first limiting sleeve is provided with internal threads to engage the external threads.

[0021] The beneficial technical effects of the utility model are as follows:

[0022] (1) the heating core assembly in the utility model, setting up heat exchange pipe, first baffle and second baffle. Heat exchange pipe exchanges heat with fluid in the heater. The first baffle and the second baffle form continuous first spiral and second spiral respectively. When the heating core assembly heats fluid, fluid spirally flows along the first spiral and the second spiral, and the centrifugal force of spiral flow thins the laminar flow bottom layer of fluid, so that the heat exchange pipe heats fluid more evenly, and the heat transfer coefficient of the heating core assembly is improved. At the same time, fluid uniformly advances along the first spiral and the second spiral, avoids energy loss caused by fluid acute angle turning, and avoids the large pressure drop caused by fluid acute angle turning, thereby improving the stability of the heating core assembly during operation and the service life of the heating core assembly.

[0023] (2) further, the fixed rod is provided with external threads, and the first limiting sleeve is provided with internal threads to engage the external threads.

[0024] (3) Further, the fixed rod is sleeved with a first limiting sleeve and a second limiting sleeve. The first limiting sleeve and the second limiting sleeve are threadedly connected with the fixed rod. Rotating the first limiting sleeve on the fixed rod can quickly adjust the fixed position of the first baffle plate and the second baffle plate on the fixed rod. Rotating the second limiting sleeve on the fixed rod can quickly adjust the position relationship between the fixed rod and the tube plate. Through the arrangement of the first limiting sleeve and the second limiting sleeve, the adjusting performance of the heating core assembly is improved to adapt to different working conditions. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A front structural schematic view of a heating core assembly of an embodiment of the present disclosure is shown.

[0026] Figure 2 A sectional view of the heating core assembly of an embodiment of the present disclosure at A is shown.

[0027] Figure 3 A connection structure between a fixed rod and a tube plate in a heating core assembly of an embodiment of the present disclosure is shown.

[0028] Figure 4 A front structural schematic view of a heating core assembly of an embodiment of the present disclosure is shown.

[0029] Markings in the drawings:

[0030] 1, heating assembly; 11, electric heating pipe; 12, control box; 2, tube plate; 3, heat exchange pipe; 4, fixed rod; 41, first limiting sleeve; 42, second limiting sleeve; 5, first baffle plate; 6, second baffle plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, please refer to the drawings. It should be noted that the structure, proportion, size, etc. shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions for implementing the present application, so they do not have substantial technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0032] In the description of the utility model, the orientation or positional relationship indicated by the limited terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" are the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] Figure 1 The utility model discloses a heating core assembly's front structure schematic diagram of one embodiment of the present disclosure is shown. Figure 1 The heating core assembly includes a tube plate 2, a heat exchange pipe 3, a first baffle 5 and a second baffle 6. The tube plate 2 is connected to the heating assembly 1. The heat exchange pipe 3 is connected to the tube plate 2. The medium of the heating assembly 1 exchanges heat with the fluid in the heater through the heat exchange pipe 3. The first baffle 5 and the second baffle 6 are respectively provided with at least two pieces. The heat exchange pipe 3 passes through the first baffle 5 or the second baffle 6. The first baffle 5 and the second baffle 6 are arranged at an acute angle with the heat exchange pipe 3. Among them, along the length direction of the heat exchange pipe 3, all the first baffles 5 are sequentially arranged, and the adjacent first baffles 5 are arranged at an angle to form a continuous first spiral. Along the length direction of the heat exchange pipe 3, the second baffles 6 are sequentially arranged, and the adjacent second baffles 6 are arranged at an angle to form a continuous second spiral. The first spiral and the second spiral are arranged in a spiral. When the heating core assembly heats the fluid, the fluid flows in a spiral along the first spiral and the second spiral, the centrifugal force of the spiral flow thins the laminar flow bottom layer of the fluid, so that the heat exchange pipe 3 heats the fluid more uniformly, and the heat transfer coefficient of the heating core assembly is improved. At the same time, the fluid uniformly advances along the first spiral and the second spiral, avoids energy loss caused by acute angle turning of the fluid, and also avoids the large pressure drop generated by the acute angle turning of the fluid, thereby improving the stability of the heating core assembly during operation and the service life of the heating core assembly.

[0034] Figure 2 The utility model discloses a heating core assembly at A of one embodiment of the present disclosure is shown. Figure 3 The utility model discloses a heating core assembly in one embodiment of the present disclosure, the connecting structure schematic diagram between fixed rod and tube plate is shown. Figure 1 、 Figure 2 And Figure 3 The tube plate 2 is provided with a fixed rod 4. The fixed rod 4 is arranged parallel to the heat exchange pipe 3. The first baffle 5 and the second baffle 6 are respectively connected to the fixed rod 4. The first baffle 5 and the second baffle 6 are respectively connected to the fixed rod 4 through the first baffle 5 and the second baffle 6. The position of the first baffle 5 and the second baffle 6 is further stabilized through the fixed rod 4, and the overall stability of the heating core assembly is improved.

[0035] Preferably, two fixed rods 4 are provided. The two fixed rods 4 are arranged symmetrically around the rotation axis of the first spiral. The two fixed rods 4 jointly fix the positions of the first baffle 5 and the second baffle 6, and improve the stability of the fixed first baffle 5 and the second baffle 6.

[0036] Please refer to Figure 1 and Figure 3 At least three first limiting sleeves 41 are sleeved on the fixed rod 4. Adjacent first limiting sleeves 41 clamp the first baffle 5 and the second baffle 6. External threads are arranged on the fixed rod 4, and internal threads are arranged on the first limiting sleeve 41 to engage the external threads. By rotating the first limiting sleeve 41 on the fixed rod 4, the position of the first baffle 5 and the second baffle 6 fixed on the fixed rod 4 can be quickly adjusted. Through the arrangement of the first limiting sleeve 41, the first baffle 5 and the second baffle 6 can be quickly connected, and the first baffle 5 and the second baffle 6 are convenient to disassemble. The first limiting sleeve 41 and the fixed rod 4 are connected by threads, the connection strength is high, and the connection structure is stable.

[0037] Preferably, two second limiting sleeves 42 are further sleeved on the fixed rod 4. The two second limiting sleeves 42 are arranged on both sides of the tube plate 2. External threads are arranged on the fixed rod 4, and internal threads are arranged on the second limiting sleeve 42 to engage the external threads. By rotating the second limiting sleeve on the fixed rod 4, the positional relationship between the fixed rod 4 and the tube plate 2 can be quickly adjusted. The position of the fixed rod 4 relative to the tube plate 2 is moved, and the first baffle 5 and the second baffle 6 on the fixed rod 4 are moved. By adjusting the relative positions of the two fixed rods 4, the included angle between the first baffle 5, the second baffle 6 and the heat exchange pipe 3 can be quickly adjusted to adapt to different working conditions. The second limiting sleeve 42 and the fixed rod 4 are connected by threads, the connection strength is high, and the connection structure is stable.

[0038] Figure 4 A front structure schematic diagram of a heating core assembly of an embodiment of the present disclosure is shown. Please refer to Figure 1 and Figure 4 One end of the heat exchange pipe 3 communicates with the tube plate 2, and the other end of the heat exchange pipe 3 is also bent to communicate with the tube plate 2. The fluid heated by the electric heating pipe 11 flows into the tube plate 2 again for heating after flowing into the heat exchange pipe 3.

[0039] Preferably, the heating assembly 1 comprises a control box 12 and an electric heating pipe 11 connected to the control box 12. The power supply line is driven by the control box 12 to supply power to the electric heating pipe 11, and then the electric heating pipe 11 is heated to heat the fluid. The fluid heated by the electric heating pipe 11 flows into the heat exchange pipe 3 for heat exchange.

[0040] In the embodiment, the other end of the heat exchange pipe 3 is also communicated with the tube plate 2 after being bent. In other embodiments, the heat exchange pipe 3 can also be straightly arranged. Correspondingly, the tube plate 2 is arranged in parallel with two tube plates, and the heat exchange pipe 3 is arranged between the two tube plates 2. Specifically, the heat exchange pipe 3 is arranged on the two tube plates 2 respectively, and the heat exchange pipes 3 arranged on the two tube plates 2 are arranged in parallel. At this time, the fluid to be heated flowing through the heat exchange pipe 3 can flow to the heat exchange pipe 3 from positions close to different tube plates 2 respectively and flow through the heat exchange pipe 3 along the first spiral and the second spiral respectively to interfere complementarily. In this way, the fluid at both ends of the entire heat exchange pipe 3 can be heated sufficiently. When the heating assembly 1 is arranged at only one end, the temperature of the one end of the heat exchange pipe 3 close to the heating assembly 1 is not enough, and the heating effect on the fluid is poor.

[0041] The specific working process of the utility model is as follows:

[0042] When heating other medium, first rotate the position of the two second limiting sleeves 42 around the fixed rod 4 to adjust the positional relationship between the fixed rod 4 and the tube plate 2. Follow the position change of the fixed rod 4, the first baffle plate 5 and the second baffle plate 6 connected with the fixed rod 4 are driven to rotate by the fixed rod 4. At this time, rotate the first limiting sleeve 41 around the fixed rod 4 to drive the first limiting rod to move along the fixed rod 4, and further adjust the positional relationship between the first baffle plate 5 and the second baffle plate 6 and the fixed rod 4. Then, the heating core assembly is installed in the heater for heating. During the heating process, the fluid in the heater flows through the heat exchange pipe 3 along the first spiral and the second spiral.

[0043] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0044] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, on the premise of not departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A heating core assembly, characterized in that, The heating core assembly includes: Tube sheet, connecting to heating components; Heat exchange tubes, connected to the tube sheet; At least two first baffles and two second baffles are provided; the heat exchange tube passes through the first baffle or the second baffle; the first baffle and the second baffle are set at an acute angle to the heat exchange tube; Along the length of the heat exchange tube, all the first baffles are arranged sequentially, and adjacent first baffles are inclined to form a continuous first spiral; along the length of the heat exchange tube, the second baffles are arranged sequentially, and adjacent second baffles are inclined to form a continuous second spiral; the first spiral and the second spiral are wound together. A fixing rod is provided on the tube sheet; the fixing rod is arranged parallel to the heat exchange tube; the first baffle and the second baffle are respectively connected to the fixing rod; Two second limiting sleeves and at least three first limiting sleeves are fitted onto the fixing rod; the two second limiting sleeves are disposed on both sides of the tube sheet; adjacent first limiting sleeves clamp and fix the first baffle and the second baffle at the position connecting the fixing rod; the fixing rod is provided with external threads, and the first limiting sleeves and the second limiting sleeves are provided with internal threads that engage with the external threads.

2. The heating core assembly as described in claim 1, characterized in that: Two fixing rods are provided; the two fixing rods are symmetrically arranged around the rotation axis of the first spiral.

3. The heating core assembly as described in claim 1, characterized in that: One end of the heat exchange tube is connected to the tube sheet, and the other end of the heat exchange tube is bent and also connected to the tube sheet.

4. The heating core assembly as described in claim 1, characterized in that: Two tube sheets are arranged in parallel; the heat exchange tubes are arranged between the two tube sheets.

5. The heating core assembly as described in claim 1, characterized in that: The heating assembly includes a control box and an electric heating element connected to the control box.

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