Circulating water heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a circulating water heat exchanger which comprises a heat exchanger body, a circulating assembly is arranged on one side of the heat exchanger body, the circulating assembly is provided with a circulating pipe, and the circulating pipe is fixedly installed at a circulating water inlet of the heat exchanger body. The end, away from the heat exchanger body, of the circulating pipe is connected with a water inlet pipe through a flexible hose, the position, close to one side, of the outer ring of the circulating pipe is connected with a first conveying pipe, the end, away from the circulating pipe, of the first conveying pipe is connected with a first pressurizing circulating pump, and a water outlet of the first pressurizing circulating pump is connected with a second conveying pipe. Through the circulating assembly, stable conveying of circulating water can be achieved, equipment does not need to be stopped for maintenance after damage, long-term stable operation of the system is facilitated, the effect that circulating water conducts circulating heat exchange through the pressure of the circulating water can be achieved through adjustment, the error-tolerant rate of the heat exchange system can be increased conveniently, and transmission resistance encountered in a pipeline can be reduced so that the liquid flow speed can be increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field, concretely is a circulating water heat exchanger. BACKGROUND

[0002] Circulating water heat exchanger is a kind of heat exchange equipment using circulating water as cooling or heating medium, mainly based on the heat exchange between cold and hot fluid, its core is through circulating water to take away heat or provide heat, reaction polymerization heat in polypropylene device, through circulating gas cooler to withdraw heat, wherein circulating water in circulating gas cooler is speeded up by supporting circulating water pump, to achieve the fast heat dissipation of polymerization reaction system, to ensure that reaction temperature is stably controlled.

[0003] Chinese patent provides a kind of circulating water monitoring heat exchanger, and the publication number is CN217877301U, including heat exchanger body, the one end of heat exchanger body is provided with cold import, cold export, hot import and hot export, the one end of cold import is provided with circulating water monitoring filter, the one end inside circulating water monitoring filter is provided with filter plate.

[0004] The above-mentioned heat exchanger can drive the paddle to rotate by using the thrust of circulating water flow by setting the impurity crushing assembly composed of supporting arm, connecting block, shaft and a plurality of paddles, and the larger impurities in circulating water can be broken by the paddle to avoid the impurities entering the inside of heat exchanger and causing the blockage of heat exchanger;

[0005] But most circulating water heat exchanger, circulating water pump only as speed increasing effect, without pressure increasing effect, its rated power is large, power consumption is high, and only one circulating water pump is speeded up, when circulating water pump cannot run due to failure or other reasons, it will cause system forced shutdown, and the fault tolerance of entire heat exchange system is low. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of circulating water heat exchanger, can effectively solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A kind of circulating water heat exchanger, including heat exchanger body, the one side of heat exchanger body is provided with circulating assembly, the circulating assembly has circulating pipe, the circulating pipe is fixedly installed at the circulating water inlet of heat exchanger body, the one end of the circulating pipe away from heat exchanger body is connected with water inlet pipe by flexible hose;

[0009] The outer ring of the circulating pipe is connected with a conveying pipe I at one side, the conveying pipe I is connected with a booster circulating pump I at the far end from the circulating pipe, the water outlet of the booster circulating pump I is connected with a conveying pipe II, the conveying pipe II is connected with the outer ring of the circulating pipe at the far end from the booster circulating pump I, and the booster circulating pump II is installed on the inner side of the conveying pipe I and the conveying pipe II and above the booster circulating pump I through a sealing flange.

[0010] Preferably, the outer ring of the circulating pipe is provided with an adjusting valve near the side of the conveying pipe I, and the connecting part of the conveying pipe I and the circulating pipe is provided with a reversing valve.

[0011] Preferably, the circulating pipe is installed with an electric hydraulic telescopic rod at one side through a mounting plate, the top end of the electric hydraulic telescopic rod is installed with a push rod, and the top end of the push rod is connected with the outer ring of the water inlet pipe at the lower position through a connecting sheet.

[0012] Preferably, the inner walls of the conveying pipe I, the conveying pipe II and the circulating pipe are all provided with a plurality of longitudinal ribs, and the plurality of longitudinal ribs are equidistantly arranged inside the conveying pipe I, the conveying pipe II and the circulating pipe.

[0013] Preferably, the outer ring of the conveying pipe I is provided with a cut-off valve II between the booster circulating pump II and the water inlet of the booster circulating pump I.

[0014] Preferably, the outer ring of the conveying pipe II is provided with a cut-off valve I between the booster circulating pump II and the water outlet of the booster circulating pump I.

[0015] Preferably, the connecting part of the conveying pipe II and the circulating pipe is provided with a check valve, and the water blocking surface of the check valve faces the circulating pipe.

[0016] Preferably, the conveying pipe I, the conveying pipe II and the circulating pipe are all hollow hard pipes, and the specifications of the conveying pipe I, the conveying pipe II and the circulating pipe are consistent.

[0017] Preferably, the water inlet pipe is provided with a flexible joint pipe at the far end from the flexible hose, and the water inlet pipe is connected with an external cooling tower through the flexible joint pipe.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The utility model discloses a circulating assembly is arranged with heat exchanger body, in the use process, through the mode of replacing different booster circulating pump I and booster circulating pump II, the stable conveying of circulating water can be realized, and the equipment does not need to be stopped for maintenance when being damaged, so that the system can be conveniently and stably operated for a long time, and through the cooperation of the water inlet pipe, the flexible hose, the adjusting valve and the reversing valve, when the booster circulating pump I and the booster circulating pump II are all stopped, the circulating water can be circulated and heat-exchanged through the self-pressure by adjustment, so that the fault tolerance of the heat exchange system can be improved.

[0020] By setting up the heat exchanger body, inlet pipe, electric hydraulic telescopic rod, and push rod in coordination, and by installing the heat exchanger body at an angle, the residence time of the liquid in the heat exchanger can be reduced, avoiding the formation of air pockets in the gas-liquid mixture within the heat exchanger, thus improving heat exchange efficiency. Furthermore, by adjusting the height of the inlet pipe, pressure loss caused by height differences can be reduced. In addition, longitudinal ribs are set inside the first delivery pipe, the circulation pipe, and the second delivery pipe to reduce transmission resistance encountered in the pipeline, thereby increasing the liquid flow rate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a circulating water heat exchanger according to an embodiment of the present utility model;

[0022] Figure 2 As an embodiment of this utility model Figure 1 Enlarged view of area A;

[0023] Figure 3 This is a schematic diagram of the internal structure of the circulation pipe in an embodiment of this utility model;

[0024] Figure 4 As an embodiment of this utility model Figure 3 Enlarged view of area A;

[0025] Figure 5 This is a schematic diagram of the structure of booster circulating pump one and booster circulating pump two in the embodiments of this utility model.

[0026] In the diagram: 1. Heat exchanger body; 2. Circulation assembly; 3. Circulation pipe; 4. Flexible hose; 5. Inlet pipe; 6. Electro-hydraulic telescopic rod; 7. Push rod; 8. Connecting piece; 9. Delivery pipe one; 10. Regulating valve; 11. Reversing valve; 12. Booster circulation pump one; 13. Delivery pipe two; 14. Shut-off valve one; 15. Shut-off valve two; 16. Booster circulation pump two; 17. Check valve; 18. Longitudinal rib. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] Combination Figures 1-5The utility model provides a circulating water heat exchanger, including heat exchanger body 1, one side of heat exchanger body 1 is provided with circulating assembly 2, circulating assembly 2 has circulating pipe 3, circulating pipe 3 fixed mounting is at the circulating water inlet of heat exchanger body 1, and the one end of circulating pipe 3 away from heat exchanger body 1 is connected with water inlet pipe 5 through flexible hose 4.

[0030] Refer to Figure 2 And Figure 3 And Figure 4 Further, the outer ring of the circulating pipe 3 is connected with a delivery pipe one 9 at one side position, the one end of the delivery pipe one 9 away from the circulating pipe 3 is connected with a booster circulating pump one 12, the water outlet of the booster circulating pump one 12 is connected with a delivery pipe two 13, the one end of the delivery pipe two 13 away from the booster circulating pump one 12 is connected with the outer ring of the circulating pipe 3 at the other side position, the inner side of the delivery pipe one 9 and the delivery pipe two 13 and located above the booster circulating pump one 12 is installed with a booster circulating pump two 16 through a sealing flange, the outer ring of the circulating pipe 3 near the delivery pipe one 9 is provided with a regulating valve 10, the connection of the delivery pipe one 9 and the circulating pipe 3 is provided with a reversing valve 11, the outer ring of the delivery pipe one 9 and located between the booster circulating pump two 16 and the water inlet of the booster circulating pump one 12 is provided with a cut-off valve two 15, the outer ring of the delivery pipe two 13 and located between the booster circulating pump two 16 and the water outlet of the booster circulating pump one 12 is provided with a cut-off valve one 14, the connection of the delivery pipe two 13 and the circulating pipe 3 is provided with a check valve 17, the water blocking surface of the check valve 17 faces the circulating pipe 3, the delivery pipe one 9, the delivery pipe two 13 and the circulating pipe 3 are hollow hard pipes, and the specifications of the delivery pipe one 9, the delivery pipe two 13 and the circulating pipe 3 are consistent.

[0031] Specifically, during normal water delivery, the booster circulating pump two 16 can be controlled to be opened, and the cut-off valve two 15, the cut-off valve one 14 and the regulating valve 10 are closed, so that the water inlet pipe 5, the flexible hose 4, the delivery pipe one 9, the delivery pipe two 13 and the circulating pipe 3 form a path, and the booster circulating pump two 16 is used for pressurized delivery of liquid, so as to ensure the heat exchange effect; when the booster circulating pump two 16 is found to be damaged during use, the cut-off valve two 15 and the cut-off valve one 14 are opened, and the booster circulating pump one 12 is started, so as to play a switching role of the delivery device, so as to realize stable operation of the heat exchanger; and the damaged booster circulating pump two 16 can be repaired subsequently, so as to increase the fault tolerance of the circulating system.

[0032] Embodiment two

[0033] Refer to Figure 3 And Figure 5And on the basis of example one, further obtained that one side of the circulating pipe 3 is installed with an electric hydraulic telescopic rod 6 through a mounting plate, the top end of the electric hydraulic telescopic rod 6 is installed with a push rod 7, and the top end of the push rod 7 is connected with the lower position of the outer ring of the water inlet pipe 5 through a connecting sheet 8, the inner walls of the delivery pipe one 9, the delivery pipe two 13 and the circulating pipe 3 are all provided with a plurality of longitudinal ribs 18, and the plurality of longitudinal ribs 18 are equidistantly arranged inside the delivery pipe one 9, the circulating pipe 3 and the delivery pipe two 13, and the end of the water inlet pipe 5 away from the flexible hose 4 is provided with a flexible joint pipe, and the water inlet pipe 5 is connected with the external cooling tower through the flexible joint pipe.

[0034] Specifically, and in use, because the heat exchanger is installed obliquely, and the oblique angle of the heat exchanger is-7° to-8°, the residence time of the liquid in the heat exchanger can be reduced after oblique installation, and the gas-liquid mixture can be prevented from forming a gas pocket in the heat exchanger, thereby improving the heat exchange efficiency. Meanwhile, after the booster circulating pump one 12 and the booster circulating pump two 16 are all damaged, the reversing valve 11 can be closed, and the regulating valve 10 can be opened, so that the circulating pipe 3, the flexible hose 4 and the water inlet pipe 5 form a passage, and the push rod of the electric hydraulic telescopic rod 6 is retracted as needed to reduce the highest point of the water inlet pipe 5, thereby reducing the circulating resistance, and the flow rate of the circulating water can be effectively improved by combining the enhanced turbulence caused by the oblique installation, so that the circulating water can be circulated and heat exchanged by the pressure of the circulating water itself. During the heat exchange process, personnel can not need to shut down to repair and replace the booster circulating pump two 16 and the booster circulating pump one 12, and after the repair of the booster circulating pump two 16 and the booster circulating pump one 12 is completed, the circulating water can be circulated and heat exchanged again in the above-mentioned manner to reduce the interference caused by the change of the external environment.

[0035] In actual operation, when the circulating water is normally delivered, the booster circulating pump two 16 can be started to be opened, and the cut-off valve two 15, the cut-off valve one 14 and the regulating valve 10 can be closed to make the water inlet pipe 5, the flexible hose 4, the delivery pipe one 9, the delivery pipe two 13 and the circulating pipe 3 form a passage, and the liquid can be delivered by the booster circulating pump two 16 to ensure the heat exchange effect. When the booster circulating pump two 16 is found to be damaged during use, the cut-off valve two 15 and the cut-off valve one 14 can be opened, and the booster circulating pump one 12 can be started to play a role in switching the delivery device, so as to realize the stable operation of the heat exchanger. The damaged booster circulating pump two 16 can be repaired subsequently to increase the fault tolerance of the circulating system.

[0036] And in use, because the heat exchanger is installed obliquely, and the oblique angle of the heat exchanger is -7° to -8°, the residence time of liquid in the heat exchanger can be reduced after oblique installation, and the gas-liquid mixture can be prevented from forming a gas pocket in the heat exchanger, thereby improving the heat exchange efficiency, and at the same time, after all the booster circulating pumps 12 and 16 are damaged, the reversing valve 11 can be closed, and the regulating valve 10 can be opened, so that the circulating pipe 3, the flexible hose 4 and the water inlet pipe 5 form a passage, and the push rod of the electric hydraulic telescopic rod 6 can be retracted according to the need;

[0037] The highest point of the water inlet pipe 5 is lowered, thereby reducing the circulating resistance, and combined with the turbulence enhancement caused by the oblique installation, the flow rate of the circulating water can be effectively improved, so that the circulating water can be circulated and heat exchanged by the self-pressure of the circulating water, and in the heat exchange process, personnel can not need to shut down to repair and replace the booster circulating pump two 16 and the booster circulating pump one 12, and after the booster circulating pump two 16 and the booster circulating pump one 12 are repaired, the circulating water can be again circulated and heat exchanged in the above-mentioned manner, so as to reduce the interference caused by the change of external environment.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A recirculating water heat exchanger characterized by: The application relates to a heat exchanger, which comprises a heat exchanger body (1), one side of the heat exchanger body (1) is provided with a circulating assembly (2), the circulating assembly (2) is provided with a circulating pipe (3), the circulating pipe (3) is fixedly installed at a circulating water inlet of the heat exchanger body (1), and one end of the circulating pipe (3) away from the heat exchanger body (1) is connected with a water inlet pipe (5) through a flexible hose (4). The outer ring of the circulating pipe (3) is connected with a conveying pipe I (9) at one side position, one end of the conveying pipe I (9) away from the circulating pipe (3) is connected with a booster circulating pump I (12), the water outlet of the booster circulating pump I (12) is connected with a conveying pipe II (13), one end of the conveying pipe II (13) away from the booster circulating pump I (12) is connected with the outer ring of the circulating pipe (3) at the other side position, and the booster circulating pump II (16) is installed on the inner side of the conveying pipe I (9) and the conveying pipe II (13) and above the booster circulating pump I (12) through a sealing flange.

2. A water-to-water heat exchanger according to claim 1, wherein: The outer ring of the circulating pipe (3) is provided with an adjusting valve (10) close to the conveying pipe I (9) at one side, and the connecting position of the conveying pipe I (9) and the circulating pipe (3) is provided with a reversing valve (11).

3. A water-to-water heat exchanger according to claim 1, wherein: One side of the circulating pipe (3) is installed with an electric hydraulic telescopic rod (6) through a mounting plate, the top end of the electric hydraulic telescopic rod (6) is installed with a push rod (7), and the top end of the push rod (7) is connected with the outer ring of the water inlet pipe (5) at a lower position through a connecting sheet (8).

4. A water-to-water heat exchanger according to claim 1, wherein: The inner walls of the conveying pipe I (9), the conveying pipe II (13) and the circulating pipe (3) are all provided with a plurality of longitudinal ribs (18), and the plurality of longitudinal ribs (18) are equidistantly arranged in the conveying pipe I (9), the circulating pipe (3) and the conveying pipe II (13).

5. A water-to-water heat exchanger according to claim 1, wherein: The outer ring of the conveying pipe I (9) is provided with a cut-off valve II (15) between the booster circulating pump II (16) and the water inlet of the booster circulating pump I (12).

6. A water-to-water heat exchanger according to claim 5, wherein: The outer ring of the conveying pipe II (13) is provided with a cut-off valve I (14) between the booster circulating pump II (16) and the water outlet of the booster circulating pump I (12).

7. A water-to-water heat exchanger according to claim 6, wherein: The connecting position of the conveying pipe II (13) and the circulating pipe (3) is provided with a one-way valve (17), and the water blocking surface of the one-way valve (17) faces the circulating pipe (3).

8. A water-to-water heat exchanger according to claim 1 wherein: The conveying pipe I (9), the conveying pipe II (13) and the circulating pipe (3) are hollow hard pipes, and the specifications of the conveying pipe I (9), the conveying pipe II (13) and the circulating pipe (3) are consistent.

9. A water-to-water heat exchanger according to claim 3 wherein: The end of the water inlet pipe (5) away from the flexible hose (4) is provided with a flexible joint pipe, and the water inlet pipe (5) is connected with an external cooling tower through the flexible joint pipe.

Images