Detachable heat exchanger suitable for concrete steel mould and assembling method

Abstract

The invention discloses a detachable heat exchanger suitable for a concrete steel mold and an assembling method, and belongs to the field of construction equipment. A heat exchanger is fixedly connected in each mounting seat; the water outlet pipe on the side face of the shell of any heat exchanger communicates with the water inlet pipe on the side face of the shell of the adjacent heat exchanger through a pipeline, and the pipeline is fixedly connected with the water outlet pipe and the water inlet pipe through threaded pipes. A through hole I communicated with the water outlet pipe is formed in the side surface of the shell; a through hole II communicated with the water inlet pipe is formed in the bottom of the shell; the interior of the shell is fixedly connected with a vertically-arranged limiting rod. A sliding plate I, a sliding plate II and a plurality of sliding plates III which are in sliding fit with the limiting rod are arranged on the limiting rod. The multiple detachable heat exchangers are arranged, the modular design is suitable for steel molds of various sizes and shapes, especially when the steel molds face complex structures, flexible adjustment can be achieved, meanwhile, after heating is completed, water in the heat exchangers can be automatically discharged, and the weight can be reduced conveniently when the heat exchangers are disassembled and moved subsequently.

Description

Technical Field

[0001] This invention relates to a detachable heat exchanger suitable for concrete steel formwork and its assembly method, belonging to the field of construction equipment. Background Technology

[0002] In the construction of precast concrete, controlling the temperature of the steel mold is a key factor in ensuring concrete quality and construction schedule. To achieve rapid and effective temperature control of the steel mold, installing a heat exchanger on the surface of the steel mold, allowing the hot water to circulate within the heat exchanger and exchange heat with the steel mold, is an important temperature control method.

[0003] However, due to the dense structure of ribs and supports on the surface of the steel mold, and the fact that drilling is usually not allowed, the size and installation method of the heat exchanger are often limited. Welding a heat exchanger with heat-conducting plates onto the steel mold surface not only reduces heat exchange efficiency due to increased contact thermal resistance, but also prevents the heat exchanger from being disassembled and reused. Furthermore, it makes it difficult to clean scale from the inside of the heat exchanger and the heat exchange surface of the steel mold, increasing the modification cost of the steel mold and the maintenance cost of the heat exchanger. In addition, hot water remains inside the heat exchanger after use; when disassembling the heat exchanger, this hot water adds to the overall weight, requiring workers to expend more physical effort to complete the work. Therefore, it is necessary to improve the design. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems existing in the background art and to provide a detachable heat exchanger and assembly method suitable for concrete steel molds.

[0005] The present invention achieves the above objectives by adopting the following technical solution:

[0006] A detachable heat exchanger suitable for concrete steel molds includes multiple mounting bases; a heat exchanger is fixedly connected in each mounting base; the water outlet pipe on the outer shell side of any one of the heat exchangers is connected to the water inlet pipe on the outer shell side of the adjacent heat exchanger through a pipe, and the pipe is fixedly connected to the water outlet pipe and the water inlet pipe through a threaded pipe.

[0007] The outer shell has a through hole I on its side that communicates with the water outlet pipe, and a through hole II on its bottom that communicates with the water inlet pipe; a vertically arranged limiting rod is fixedly connected inside the outer shell; the limiting rod is provided with sliding plates I, II and multiple sliding plates III that slide with it.

[0008] A method for assembling a detachable heat exchanger suitable for concrete steel formwork, the method comprising the following steps:

[0009] Step 1: Weld the mounting base to the outside of the steel mold;

[0010] Step 2: Install the heat exchanger on the mounting base with bolts, and then connect the outlet and inlet pipes of adjacent heat exchangers together through pipes and threaded cylinders;

[0011] Step 3: Inject hot water into the inlet pipe of the edge heat exchanger using a water pump. Compared with the prior art, the advantages of this invention are: This invention not only features multiple detachable heat exchangers, but its modular design is also suitable for steel molds of various sizes and shapes, allowing for flexible adjustments, especially when dealing with complex structures. Furthermore, after heat exchange is completed, this invention can automatically drain the water from the heat exchanger, facilitating subsequent disassembly and relocation of the heat exchanger and reducing its weight. Attached Figure Description

[0012] Figure 1 This is a front sectional view of a detachable heat exchanger suitable for concrete steel molds according to the present invention.

[0013] Figure 2 This is a schematic diagram of the structure of a mounting base for a detachable heat exchanger suitable for concrete steel molds according to the present invention.

[0014] Figure 3 This is a schematic diagram of the structure of a detachable heat exchanger suitable for concrete steel molds according to the present invention.

[0015] Figure 4 This is a bottom view of the slide plate Ⅲ of a detachable heat exchanger suitable for concrete steel molds according to the present invention;

[0016] Figure 5 This is a cross-sectional view of the slide plate II of a detachable heat exchanger suitable for concrete steel molds according to the present invention.

[0017] Figure 6 This is a cross-sectional view of the slide plate I of a detachable heat exchanger suitable for concrete steel molds according to the present invention;

[0018] Figure 7 This is a cross-sectional view of a limiting rod for a detachable heat exchanger suitable for concrete steel molds according to the present invention.

[0019] Figure 8 This is a schematic diagram of the drainage state of a detachable heat exchanger suitable for concrete steel molds according to the present invention. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Specific implementation method one: as follows Figure 1-8 As shown, this embodiment describes a detachable heat exchanger suitable for concrete steel molds, including multiple mounting bases 2; each mounting base 2 is fixedly connected to a heat exchanger 3; the size of the heat exchanger 3 matches the mounting base 2, and the outlet pipe 32 on the side of the outer shell 31 of any heat exchanger 3 is connected to the inlet pipe 310 on the side of the outer shell 31 of the adjacent heat exchanger 3 via a pipe 4. The ends of the pipe 4, the outlet pipe 32, and the inlet pipe 310 are all threaded and fixedly connected via a threaded pipe 5; the heat exchanger 3, the pipe 4, and the threaded pipe 5 are all detachable, facilitating maintenance or use on other steel molds 1, thus saving costs. The pipe 4 can be a flexible hose with a threaded joint to bypass the ribs and supports on the outer wall of the steel mold 1.

[0022] The outer casing 31 has a through hole I 33 on its side, communicating with the water outlet pipe 32, and a through hole II 39 on its bottom, communicating with the water inlet pipe 310. A vertically arranged limiting rod 34 is fixedly connected inside the outer casing 31. The limiting rod 34 has sliding plates I 37, II 36, and multiple sliding plates III 35 that slide with it. Sliding plates I 37, II 36, and multiple sliding plates III 35 can slide relative to the limiting rod 34 to facilitate... Figure 8 In the state shown, water inside the outer casing 31 can be drained. Figure 3 In the indicated state, the hot water introduced at the inlet 310 can be discharged from the outlet 32.

[0023] Slide I 37, Slide II 36, and Slide III 35 are all made of a material with a density greater than water. When heat exchanger 3 is not working, slide I 37, slide II 36, and slide III 35 can move downwards under their own weight.

[0024] The mounting base 2 is rectangular. The outer shell 31 is detachably connected to the mounting base 2 by means of bolts or buckles, and a sealing gasket is provided between the outer shell 31 and the mounting base 2. The side of the outer shell 31 near the steel mold 1 is hollowed out to reduce thermal resistance.

[0025] A gap is left between the sliding plates I 37, II 36, and III 35 and the outer wall of the steel mold 1 to prevent incomplete cleaning of dirt on the outer wall of the steel mold 1 from affecting the up-and-down sliding of the sliding plates I 37, II 36, and III 35. At the same time, the fluid flow rate per unit time in the gap between the sliding plates I 37, II 36, and III 35 and the outer wall of the steel mold 1 is less than the flow rate per unit time in the water inlet pipe 310, so as to ensure that the hot water can provide sufficient external force to the sliding plates I 37, II 36, and III 35 during the operation of the heat exchanger 3, so that a flow channel for the hot water to flow is left between the sliding plates I 37, II 36, and III 35.

[0026] The sliding plate I37 is located near the bottom of the outer shell 31. The sliding plate I37 is provided with a through hole I371 that slides with the limiting rod 34. A slider I372 is fixedly connected to the inner wall of the through hole I371.

[0027] The slide plate II 36 is disposed between two adjacent slide plates III 35. The slide plate II 36 is provided with a through hole II 361 that slides with the limiting rod 34. A slider II 362 is fixedly connected to the inner wall of the through hole II 361.

[0028] The sliding plate Ⅲ35 is provided with a through hole Ⅲ351 that slides with the limiting rod 34, and a slider Ⅲ352 is fixedly connected to the inner wall of the through hole Ⅲ351.

[0029] One end of each of the slide plates I 37, II 36 and III 35 contacts the opposite sidewall of the outer shell 31, forming a reciprocating flow channel inside the outer shell 31.

[0030] The side of the limiting rod 34 is provided with a slide rail 341 that slides with slider I 372, slider II 362, and slider III 352. This facilitates the up-and-down sliding of slider I 37, slider II 36, and multiple slider III 35.

[0031] The slide 341 increases in depth from top to bottom, and the lengths of sliders I 372, II 362, and III 352 match the depth of the corresponding positions in the slide 341. This limits the sliding height of sliders I 37, II 36, and multiple sliders III 35, preventing vertically adjacent sliders I 37, III 35, or II 36, III 35 from sticking together and affecting water flow.

[0032] The slide plate I 37 has a vertical circular hole 374 located above the through hole II 39. A cylinder 375 communicating with the circular hole 374 is fixedly connected to the upper end of the slide plate I 37. A fixed cylinder 38, which slidably engages with the circular hole 374, is fixedly connected to the bottom surface of the outer casing 31. By positioning the cylinder 375 and the fixed cylinder 38 above the water inlet 310, after water enters the interior of the outer casing 31, the height of the slide plate I 37 is preferentially increased, thereby causing the plug 311 to block the hole at the bottom of the outer casing 31, preventing water leakage during water intake.

[0033] The bottom of the sliding plate II 36 is provided with a groove 364 that slides with the cylinder 375. Figure 8 In the state shown, water can move continuously towards the bottom of the outer shell 31 through the groove 364 under the action of gravity, and eventually be discharged through the hole.

[0034] The bottom of the outer shell 31 is provided with a hole, and a plug 311 is provided in the hole for sliding cooperation with it; the upper end of the plug 311 is fixedly connected to a sleeve 312 that is sleeved on the outside of the limiting rod 34; the sleeve 312 is fixedly connected to the lower end of the slide plate I 37.

[0035] When the sliding plate I 37 is against the bottom surface of the outer shell 31, the plug 311 is disengaged from the hole at the bottom of the outer shell 31; when the height of the sliding plate I 37 is higher than the fixed cylinder 38, the plug 311 is located in the hole at the bottom of the outer shell 31.

[0036] The bottoms of the slide plates I 37, II 36 and III 35 are respectively provided with arc-shaped grooves I 373, II 363 and III 353 for water flow.

[0037] A method for assembling a detachable heat exchanger suitable for concrete steel formwork, the method comprising the following steps:

[0038] Step 1: Weld the mounting base 2 to both sides of the steel mold 1;

[0039] Step 2: Install the heat exchanger 3 on the mounting base 2 with bolts, and then connect the outlet pipe 32 and inlet pipe 310 of the adjacent heat exchangers 3 together through the pipe 4 and threaded cylinder 5.

[0040] Step 3: Use a water pump to introduce hot water into the inlet pipe 310 of the edge heat exchanger 3.

[0041] The working principle of this invention is as follows: When using this device, the mounting base 2 is welded to both sides of the steel mold 1;

[0042] Heat exchanger 3 is installed on mounting base 2 with bolts, and then the outlet pipe 32 and inlet pipe 310 of adjacent heat exchangers 3 are connected together through pipe 4 and threaded cylinder 5.

[0043] Hot water is pumped into the inlet pipe 310 of the edge heat exchanger 3. The hot water then enters the fixed cylinder 38 through the perforation II 39. When no hot water is pumped in, slide plates I 37, II 36, and III 35 move to their lowest points under their own gravity (e.g., ...). Figure 8 (As shown in the diagram), after hot water is introduced, it passes through the fixed cylinder 38 and enters the cylindrical cylinder 375. Under water pressure, the cylindrical cylinder 375 moves upward, which in turn moves the sliding plates I 37, II 36, and III 35 upward together. The upward movement of sliding plate I 37 moves the sleeve 312 below it upward, which in turn moves the plug 311 upward, blocking the hole at the bottom of the outer shell 31 until the height of sliding plate I 37 is higher than the upper end of the fixed cylinder 38. This allows water in the fixed cylinder 38 and the cylindrical cylinder 375 to flow into the lower end of sliding plate I 37 inside the outer shell 31 through the gap between sliding plate I 37 and the fixed cylinder 38. As the water volume increases, when the lower end of sliding plate I 37 is filled, the continuous introduction of hot water will move sliding plates III 35 and II 36 upward, achieving the desired effect. Figure 3As shown, the water flows through the outlet pipe 32 into the pipe 4, and then through the pipe 4 into the adjacent heat exchanger 3, until hot water is discharged from the outlet pipe 32 of the end heat exchanger 3. The hot water flows in the heat exchanger 3 and exchanges heat with the steel mold 1 to heat the steel mold 1.

[0044] After heating is complete, the water pump is turned off, and no more hot water is supplied to the heat exchanger 3. Under the action of gravity, slide plates II 36 and III 35 move downwards inside the outer shell 31 and stack on top of slide plate I 37, increasing the gravity on slide plate I 37 and causing it to move downwards continuously. This drives sleeve 312 and plug 311 downwards until plug 311 disengages from the hole at the bottom of the outer shell 31, allowing the water inside the outer shell 31 to drain out through the hole, and finally reaching the desired temperature again. Figure 8 As shown, drainage is complete. After drainage, the overall weight of heat exchanger 3 is reduced, making it easier to move, disassemble, or reinstall, and preventing water from remaining inside heat exchanger 3 for extended periods.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A detachable heat exchanger suitable for concrete steel formwork, characterized in that: It includes multiple mounting bases (2); each mounting base (2) is fixedly connected to a heat exchanger (3); the water outlet pipe (32) on the side of the shell (31) of any heat exchanger (3) is connected to the water inlet pipe (310) on the side of the shell (31) of the adjacent heat exchanger (3) through a pipe (4), and the pipe (4) is fixedly connected to the water outlet pipe (32) and the water inlet pipe (310) through a threaded pipe (5); The outer shell (31) has a through hole I (33) on its side that communicates with the water outlet pipe (32), and a through hole II (39) at the bottom of the outer shell (31) that communicates with the water inlet pipe (310); a vertically arranged limiting rod (34) is fixedly connected inside the outer shell (31); the limiting rod (34) is provided with a sliding plate I (37), a sliding plate II (36) and a plurality of sliding plates III (35) that slide with it.

2. A detachable heat exchanger suitable for concrete steel formwork according to claim 1, characterized in that: The slide plate I (37) is located near the bottom of the outer shell (31). The slide plate I (37) is provided with a through hole I (371) that slides with the limiting rod (34). A slider I (372) is fixedly connected to the inner wall of the through hole I (371). The slide plate II (36) is set between two adjacent slide plates III (35). The slide plate II (36) is provided with a through hole II (361) that slides with the limiting rod (34). A slider II (362) is fixedly connected to the inner wall of the through hole II (361). The slide plate Ⅲ (35) is provided with a through hole Ⅲ (351) that slides with the limiting rod (34), and a slider Ⅲ (352) is fixedly connected to the inner wall of the through hole Ⅲ (351).

3. A detachable heat exchanger suitable for concrete steel formwork according to claim 2, characterized in that: The side of the limiting rod (34) is provided with a slide (341) that slides with slider I (372), slider II (362) and slider III (352).

4. A detachable heat exchanger suitable for concrete steel formwork according to claim 3, characterized in that: The depth of the slide (341) increases from top to bottom, and the lengths of slider I (372), slider II (362), and slider III (352) match the depth of the corresponding position of the slide (341).

5. A detachable heat exchanger suitable for concrete steel formwork according to claim 1 or 4, characterized in that: The slide plate I (37) is provided with a vertical circular hole (374), which is located above the through hole II (39); the upper end of the slide plate I (37) is fixedly connected to a cylinder (375) communicating with the circular hole (374); the bottom surface of the outer shell (31) is fixedly connected to a fixed cylinder (38) that slides with the circular hole (374).

6. A detachable heat exchanger suitable for concrete steel formwork according to claim 5, characterized in that: The bottom of the slide plate II (36) is provided with a groove (364) that slides with the cylinder (375).

7. A detachable heat exchanger suitable for concrete steel formwork according to claim 6, characterized in that: The bottom of the outer shell (31) is provided with a hole, and a plug (311) is provided in the hole for sliding cooperation with it; a sleeve (312) is fixedly connected to the upper end of the plug (311) and sleeved on the outside of the limiting rod (34); the sleeve (312) is fixedly connected to the lower end of the slide plate I (37).

8. A detachable heat exchanger suitable for concrete steel formwork according to claim 7, characterized in that: When the sliding plate I (37) is against the bottom surface of the outer shell (31), the plug (311) is disengaged from the hole at the bottom of the outer shell (31); when the height of the sliding plate I (37) is higher than that of the fixed cylinder (38), the plug (311) is located in the hole at the bottom of the outer shell (31).

9. A detachable heat exchanger suitable for concrete steel formwork according to claim 8, characterized in that: The bottom of the slide plate I (37), slide plate II (36) and slide plate III (35) are respectively provided with arc-shaped groove I (373), arc-shaped groove II (363) and arc-shaped groove III (353) for water flow.

10. The assembly method of a detachable heat exchanger suitable for concrete steel formwork according to claim 9, characterized in that: The assembly method includes the following steps: Step 1: Weld the mounting base (2) to the outside of the steel mold (1); Step 2: Install the heat exchanger (3) on the mounting base (2) with bolts, and then connect the outlet pipe (32) and inlet pipe (310) of the adjacent heat exchanger (3) together through the pipe (4) and threaded cylinder (5); Step 3: Use a water pump to introduce hot water into the inlet pipe (310) of the edge heat exchanger (3).

Images