Pipeline connecting structure for vertical spiral-plate heat exchanger

Abstract

The utility model discloses a pipeline connecting structure for a vertical spiral-plate heat exchanger, relates to the technical field of vertical spiral-plate heat exchangers, and aims to solve the problems that two fluids are convenient to carry out heat exchange treatment through two feeding pipes and two discharging pipes of the conventional vertical spiral-plate heat exchanger; the vertical spiral-plate heat exchanger comprises a vertical spiral-plate heat exchanger body, liquid outlets are formed in the front end face and the rear end face of the vertical spiral-plate heat exchanger body, two liquid inlets are formed in the top of the vertical spiral-plate heat exchanger body, and the liquid inlets are communicated with the liquid outlets. A vertical support is welded to the bottom of the vertical spiral-plate heat exchanger. The liquid storage tanks are arranged at the front end and the rear end of the vertical support, the two liquid storage tanks are arranged below the two liquid outlets respectively, and booster pumps are arranged on one sides of the two liquid storage tanks; and the injection-back guide pipe is arranged at the liquid outlet end of the booster pump.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical spiral plate heat exchangers, in particular to a pipeline connection structure for a vertical spiral plate heat exchanger. Background Art

[0002] A vertical spiral plate heat exchanger is a heat exchanger that uses two parallel metal plates rolled into two spiral channels. The heat exchange between hot and cold fluids occurs through the spiral plate walls. Spiral plate heat exchangers are available in two types: detachable and non-detachable.

[0003] For example, the announcement number is: CN220398316U (named a vertical spiral plate heat exchanger), which includes a heat exchanger cavity with a spiral plate and two end plates. The interior of the heat exchanger cavity is formed with a heat exchange channel through the spiral plate. A spiral heat exchange tube is fixed inside the heat exchange channel. The spiral heat exchange tube is bent into a vortex linear structure through a bending process. The two ends of the spiral heat exchange tube are respectively fixed with a second discharge pipe and a second feed pipe. The second discharge pipe and the second feed pipe are connected to the external connecting pipe through a connecting flange. By setting the spiral heat exchange tube, it is possible to achieve During the cooling process, the cold medium enters the interior of the heat exchanger cavity through the first feed pipe. After the cold medium flows in the heat exchange channel, the cold medium is discharged through the first discharge pipe. At the same time, the hot medium is transported to the interior of the spiral heat exchange tube by the second feed pipe. In addition, the flow directions of the cold medium and the hot medium are opposite, so that the hot medium fully contacts the cold medium in the heat exchange channel through the spiral heat exchange tube for heat exchange. The cooled hot medium is discharged through the second discharge pipe. The same applies to the heating process. It is only necessary to interchange the inlet ends of the cold medium and the hot medium. Through the mutual use of the above parts, fast and efficient heat exchange can be achieved.

[0004] The above-mentioned vertical spiral plate heat exchanger facilitates heat exchange between two fluids by setting two feed pipes and two discharge pipes. However, the fluid can only exchange heat once when passing through the spiral plate, resulting in poor heat exchange effect. To this end, we provide a pipe connection structure for a vertical spiral plate heat exchanger. Utility Model Content

[0005] The purpose of the present utility model is to provide a pipe connection structure for a vertical spiral plate heat exchanger to solve the problem proposed in the above background technology that the existing vertical spiral plate heat exchanger facilitates heat exchange between two fluids by setting two feed pipes and two discharge pipes, but the fluid can only exchange heat once when flowing through the spiral plate, resulting in poor heat exchange effect.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a pipe connection structure for a vertical spiral plate heat exchanger, comprising a vertical spiral plate heat exchanger, wherein the front and rear surfaces of the vertical spiral plate heat exchanger are both provided with liquid outlets, the top of the vertical spiral plate heat exchanger is provided with two liquid inlets, and the bottom of the vertical spiral plate heat exchanger is welded with a vertical bracket;

[0007] Also includes:

[0008] Liquid-filling tanks are arranged at the front and rear ends of the vertical support, with the two liquid-filling tanks being located below the two liquid outlets respectively, and a booster pump is provided on one side of the two liquid-filling tanks;

[0009] A return conduit is provided on the liquid outlet of the booster pump, with both ends of the return conduit being connected to the booster pump and the liquid inlet respectively, and flanges are installed at one end of the liquid outlet, the return conduit and the liquid inlet;

[0010] The temperature monitor is fixed on the outer wall of the other side of the liquid tank by screws, and a temperature probe is provided inside the liquid tank, and the wiring at one end of the temperature probe is plugged into the temperature monitor.

[0011] Preferably, an assembly pipe is provided at one end of the flange, the assembly pipe and the flange are an integrated structure, and a threaded wall is provided on the outer wall of the assembly pipe.

[0012] Preferably, a threaded pipe groove is provided at the connection position between the assembly pipe and the liquid outlet, the return pipe and the liquid inlet, and the assembly pipe is sealed and fixedly connected to the threaded pipe groove through the threaded wall.

[0013] Preferably, six flange bolts are installed at the connection position of two adjacent flanges, and wire through-holes are provided inside the flange bolts, and the wire through-holes and the top caps of the flange bolts are an integrated structure.

[0014] Preferably, the six steel wire through-holes are internally connected with series steel wires, and the head and tail ends of the series steel wires are knotted and connected.

[0015] Preferably, a liquid discharge port is provided on the outer wall of the bottom of the liquid storage tank, one end of the liquid discharge port is sealed and connected to a liquid extraction pipe, and the liquid extraction pipe is connected to the liquid inlet end of the booster pump.

[0016] Preferably, an inner lining filter screen is provided inside the drain port, and the inner lining filter screen is welded to the inner wall of the drain port.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model injects a hot fluid and a cold fluid into the interior of a vertical spiral plate heat exchanger through two liquid inlets respectively, and the hot and cold fluids exchange heat between them through the spiral plate wall. After the heat exchange, the hot and cold fluids are discharged through the two liquid outlets at the front end and the rear end respectively and flow into the interior of the liquid filling tank. The temperature of the fluid inside the liquid filling tank is monitored by a temperature monitor to judge the effect of the heat exchange operation. When it is found that the temperature of the cold fluid does not reach the required temperature, the two booster pumps are used to pump the fluid inside the two liquid filling tanks back to the two liquid inlets, so that the heat exchange operation is performed again in the vertical spiral plate heat exchanger, thereby improving the heat exchange effect of the vertical spiral plate heat exchanger and overcoming the problem that the existing vertical spiral plate heat exchanger facilitates heat exchange between the two fluids by setting two feed pipes and two discharge pipes, but the fluid can only exchange heat once when passing through the spiral plate once, resulting in poor heat exchange effect.

[0019] 2. Use a pipe connection structure to connect the two liquid outlets and two liquid inlets of the vertical spiral plate heat exchanger respectively, and monitor the fluid temperature. Flanges can be installed on the liquid outlet, liquid inlet and return pipe to facilitate pipe docking. After the adjacent flanges are fixed with flange bolts, series steel wires are passed through each steel wire perforation respectively, and the two ends of the series steel wires are knotted and fixed to avoid loosening of the flange bolts and improve the stability of the pipe connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the pipe connection structure for the vertical spiral plate heat exchanger of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the liquid storage tank and the booster pump of the utility model;

[0022] Figure 3 This is a schematic diagram of the flange installation structure of the present utility model;

[0023] Figure 4 This is a schematic diagram of the flange structure of the present utility model;

[0024] In the figure: 1. Vertical spiral plate heat exchanger; 2. Vertical bracket; 3. Liquid outlet; 4. Flange; 5. Liquid storage tank; 6. Booster pump; 7. Return pipe; 8. Liquid inlet; 9. Liquid extraction pipe; 10. Liquid discharge port; 11. Lined filter; 12. Temperature monitor; 13. Temperature probe; 14. Threaded pipe groove; 15. Assembly pipe; 16. Threaded wall; 17. Flange bolt; 18. Steel wire hole; 19. Series steel wire. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] See also Figure 1-4 The present invention provides an embodiment of a pipe connection structure for a vertical spiral plate heat exchanger, comprising a vertical spiral plate heat exchanger 1, wherein a liquid outlet 3 is provided on the front end surface and the rear end surface of the vertical spiral plate heat exchanger 1, two liquid inlets 8 are provided on the top of the vertical spiral plate heat exchanger 1, and a vertical bracket 2 is welded to the bottom of the vertical spiral plate heat exchanger 1;

[0027] Also includes:

[0028] Liquid-filling tanks 5 are provided at the front and rear ends of the vertical support 2. The two liquid-filling tanks 5 are respectively located below the two liquid outlets 3, and a booster pump 6 is provided on one side of the two liquid-filling tanks 5.

[0029] The return conduit 7 is provided on the liquid outlet of the booster pump 6. The two ends of the return conduit 7 are respectively connected to the booster pump 6 and the liquid inlet 8. The liquid outlet 3, the return conduit 7 and one end of the liquid inlet 8 are all provided with a flange 4.

[0030] The temperature monitor 12 is fixed on the other side outer wall of the liquid tank 5 by screws, and a temperature probe 13 is provided inside the liquid tank 5 , and the wiring at one end of the temperature probe 13 is plugged into the temperature monitor 12 .

[0031] During use, a hot fluid and a cold fluid are respectively injected into the interior of the vertical spiral plate heat exchanger through the two liquid inlets, and the hot and cold fluids exchange heat through the spiral plate wall. After the heat exchange, the hot and cold fluids are discharged through the two liquid outlets at the front and rear ends respectively and flow into the interior of the liquid tank. The temperature of the fluid inside the liquid tank is monitored by a temperature monitor to judge the effect of this heat exchange operation. When it is found that the temperature of the cold fluid does not reach the required temperature, the two booster pumps are used to pump the fluid inside the two liquid tanks back to the two liquid inlets, so that another heat exchange operation is carried out in the vertical spiral plate heat exchanger.

[0032] See also Figure 3 An assembly pipe 15 is provided at one end of the flange 4. The assembly pipe 15 and the flange 4 are an integrated structure. A threaded wall 16 is provided on the outer wall of the assembly pipe 15. The assembly pipe 15 provided at one end of the flange 4 serves to facilitate the installation of the flange 4.

[0033] See also Figure 3A threaded pipe groove 14 is provided at the connection position between the assembly pipe 15 and the liquid outlet 3, the return injection conduit 7 and the liquid inlet 8. The assembly pipe 15 is sealed and fixedly connected to the threaded pipe groove 14 through the threaded wall 16. The threaded pipe groove 14 provided at the connection position between the assembly pipe 15 and the liquid outlet 3, the return injection conduit 7 and the liquid inlet 8 serves to facilitate the corresponding connection of the threaded wall 16 on the assembly pipe 15.

[0034] See also Figure 4 Six flange bolts 17 are installed at the connection position of two adjacent flanges 4. A wire through-hole 18 is provided inside the flange bolt 17. The wire through-hole 18 and the top cap of the flange bolt 17 are an integrated structure. The six flange bolts 17 installed at the connection position of two adjacent flanges 4 play the role of fastening the two flanges 4.

[0035] See also Figure 4 The six steel wire through holes 18 are internally connected with series steel wires 19 , and the head and tail ends of the series steel wires 19 are knotted and connected. The series steel wires 19 provided internally with the six steel wire through holes 18 prevent the flange bolts 17 from loosening.

[0036] See also Figure 2 A liquid discharge port 10 is provided on the bottom outer wall of the liquid storage tank 5, and one end of the liquid discharge port 10 is sealed and connected to a liquid extraction pipe 9, which is connected to the liquid inlet end of the booster pump 6. The liquid discharge port 10 provided on the bottom outer wall of the liquid storage tank 5 serves to discharge the fluid.

[0037] See also Figure 2 The drain port 10 is provided with an inner lining filter 11, which is welded to the inner wall of the drain port 10. The inner lining filter 11 provided inside the drain port 10 plays a role in filtering the fluid.

[0038] Working principle: When in use, a hot fluid and a cold fluid are respectively injected into the interior of the vertical spiral plate heat exchanger 1 through the two liquid inlets 8, and the hot and cold fluids exchange heat through the spiral plate wall. After the heat exchange, the hot and cold fluids are discharged through the two liquid outlets 3 at the front and rear ends respectively and flow into the interior of the liquid tank 5. The temperature of the fluid inside the liquid tank 5 is monitored by the temperature monitor 12 to judge the effect of the heat exchange operation. When it is found that the temperature of the cold fluid does not reach the required temperature, the two booster pumps 6 are used to pump the fluid inside the two liquid tanks 5 back to the two liquid inlets 8, so that another heat exchange operation is carried out in the vertical spiral plate heat exchanger 1, thereby improving the vertical spiral. To improve the heat exchange effect of the plate heat exchanger 1, a pipeline connection structure is used to connect the two liquid outlets 3 and the two liquid inlets 8 of the vertical spiral plate heat exchanger 1 respectively, and monitor the fluid temperature. Flanges 4 can be installed on the liquid outlet 3, the liquid inlet 8 and the return pipe 7 to facilitate pipeline docking. After the adjacent flanges 4 are fixed by flange bolts 17, the series steel wires 19 are respectively passed through each steel wire through-hole 18, and the two ends of the series steel wires 19 are knotted and fixed to avoid loosening of the flange bolts 17 and improve the stability of the pipeline connection. The model of the temperature monitor 12 is: SR-100S, completing the use of the pipeline connection structure for the vertical spiral plate heat exchanger.

[0039] 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 present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A pipe connection structure for a vertical spiral plate heat exchanger, comprising a vertical spiral plate heat exchanger (1), wherein a liquid outlet (3) is provided on the front end face and the rear end face of the vertical spiral plate heat exchanger (1), two liquid inlets (8) are provided on the top of the vertical spiral plate heat exchanger (1), and a vertical bracket (2) is welded to the bottom of the vertical spiral plate heat exchanger (1); Its characteristics are: Also includes: Liquid-filling tanks (5) are arranged at the front and rear ends of the vertical support (2), the two liquid-filling tanks (5) being located below the two liquid outlets (3) respectively, and a booster pump (6) is provided on one side of each of the two liquid-filling tanks (5); A return conduit (7) is provided on the liquid outlet end of the booster pump (6), with both ends of the return conduit (7) being connected to the booster pump (6) and the liquid inlet (8), respectively, and a flange (4) is installed at one end of the liquid outlet (3), the return conduit (7) and the liquid inlet (8); A temperature monitor (12) is fixedly mounted on the other outer wall of the liquid tank (5) by screws, and a temperature probe (13) is disposed inside the liquid tank (5), with a wiring at one end of the temperature probe (13) being plug-connected to the temperature monitor (12).

2. The pipe connection structure for a vertical spiral plate heat exchanger according to claim 1, characterized in that: An assembly pipe (15) is provided at one end of the flange (4). The assembly pipe (15) and the flange (4) are an integrated structure, and a threaded wall (16) is provided on the outer wall of the assembly pipe (15).

3. The pipe connection structure for a vertical spiral plate heat exchanger according to claim 2, characterized in that: A threaded pipe groove (14) is provided at the connection position between the assembly pipe (15) and the liquid outlet (3), the return pipe (7) and the liquid inlet (8), and the assembly pipe (15) is sealed and fixedly connected to the threaded pipe groove (14) via a threaded wall (16).

4. The pipe connection structure for a vertical spiral plate heat exchanger according to claim 1, characterized in that: Six flange bolts (17) are installed at the connection position of two adjacent flanges (4), and steel wire through holes (18) are provided inside the flange bolts (17). The steel wire through holes (18) and the top caps of the flange bolts (17) are an integrated structure.

5. The pipe connection structure for a vertical spiral plate heat exchanger according to claim 4, characterized in that: The six steel wire through holes (18) are internally connected with series steel wires (19), and the head and tail ends of the series steel wires (19) are connected by knots.

6. The pipe connection structure for a vertical spiral plate heat exchanger according to claim 1, characterized in that: A liquid discharge port (10) is provided on the outer wall of the bottom of the liquid storage tank (5), one end of the liquid discharge port (10) is sealed and connected to a liquid extraction pipe (9), and the liquid extraction pipe (9) is connected to the liquid inlet end of the booster pump (6).

7. The pipe connection structure for a vertical spiral plate heat exchanger according to claim 6, characterized in that: An inner lining filter screen (11) is provided inside the liquid discharge port (10), and the inner lining filter screen (11) is welded to the inner wall of the liquid discharge port (10).

Images