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CN-224215902-U - Indirect heat exchange system for cooling water

CN224215902UCN 224215902 UCN224215902 UCN 224215902UCN-224215902-U

Abstract

The utility model belongs to the technical field of heating ventilation and discloses a cooling water indirect heat exchange system. The device comprises a plate heat exchanger and a buffer water tank, wherein a cooling water supply pipe, one side of the plate heat exchanger and a cooling water return pipe are connected to form closed circulation, the other side of the plate heat exchanger is respectively connected with a softened water supply pipe and a softened water return pipe, the buffer water tank is arranged between the plate heat exchanger and the softened water return pipe and is connected with the plate heat exchanger, the softened water supply pipe and the softened water return pipe are respectively connected with a user end, a pipeline pulse descaling device is arranged on the softened water supply pipe, and a chemical feeder is connected in parallel with a pipeline connected with the pipeline pulse descaling device and the user end. The circulating cooling water is used as a cold source to circularly cool the softened water, and the system is a closed system. The system indirectly exchanges heat, supplements water for cyclic utilization once, increases the performance of the system, saves the cost, and realizes the secondary reverse osmosis in a long-distance conveying pipe network to ensure the water quality.

Inventors

  • WANG RENTAO
  • GAO TIANJIAO
  • GUO YONGDONG

Assignees

  • 大连鸿鼎热能技术有限公司

Dates

Publication Date
20260508
Application Date
20250430

Claims (6)

  1. 1. A cooling water indirect heat exchange system is characterized by comprising a plate heat exchanger (1) and a buffer water tank (3), wherein a cooling water supply pipe (6), one side of the plate heat exchanger (1) and a cooling water return pipe (7) are connected to form a closed cycle, the other side of the plate heat exchanger (1) is respectively connected with a softened water supply pipe (8) and a softened water return pipe (9), the buffer water tank (3) is arranged between the plate heat exchanger (1) and the softened water return pipe (9), the buffer water tank (3) is connected with the plate heat exchanger (1), the softened water supply pipe (8) and the softened water return pipe (9) are respectively connected with a user end (5), a pipeline pulse descaling device (11) is arranged on the softened water supply pipe (8), and a chemical feeder (12) is connected in parallel on a pipeline connected with the pipeline pulse descaling device (11) and the user end (5).
  2. 2. A cooling water indirect heat exchange system according to claim 1 wherein the cooling water supply pipe (6) is externally connected to the cooling water inlet pipe.
  3. 3. A cooling water indirect heat exchange system according to claim 1, characterized in that a softened water circulation pump (2) is arranged on the pipeline connecting the buffer water tank (3) and the plate heat exchanger (1).
  4. 4. The indirect cooling water heat exchange system according to claim 1, wherein the buffer water tank (3) is further connected with a softened water replenishing pipe (10), and a water replenishing valve (4) is arranged on the softened water replenishing pipe (10).
  5. 5. A cooling water indirect heat exchange system according to claim 1 characterized in that the cooling water supply pipe (6), the cooling water return pipe (7), the softened water supply pipe (8), the softened water return pipe (9) and the softened water replenishing pipe (10) are provided with butterfly valves.
  6. 6. A cooling water indirect heat exchange system according to claim 1 characterized in that a level gauge is arranged in the buffer water tank (3).

Description

Indirect heat exchange system for cooling water Technical Field The utility model belongs to the technical field of heating ventilation, and relates to a cooling water indirect heat exchange system. In particular to a cooling water indirect heat exchange system polluted by a secondary pipeline. Background The existing system directly cools the equipment for cooling water, after the temperature of the cooling water rises, the equipment is seriously scaled in the equipment, the operation of the equipment is influenced, the cooling water is seriously polluted, the waste is caused, and the performance and the efficiency of the system are further influenced. After the cooling water is subjected to primary reverse osmosis treatment in the machine room, iron ions are separated out again in the long-distance conveying pipeline, so that the requirements of users cannot be met. Disclosure of utility model The utility model aims to overcome the defects in the background technology, and provides a cooling water indirect heat exchange system which is a closed system for cooling softened water in a circulating way by taking circulating cooling water as a cold source in order to ensure that a cooling system stably and effectively operates for a long time. The system indirectly exchanges heat, supplements water for cyclic utilization once, increases the performance of the system, saves the cost, and realizes the secondary reverse osmosis in a long-distance conveying pipe network to ensure the water quality. The technical scheme includes that the cooling water indirect heat exchange system comprises a plate heat exchanger and a buffer water tank, wherein a cooling water supply pipe, one side of the plate heat exchanger and a cooling water return pipe are connected to form closed circulation, the other side of the plate heat exchanger is respectively connected with a softened water supply pipe and a softened water return pipe, the buffer water tank is arranged between the plate heat exchanger and the softened water return pipe and is connected with the plate heat exchanger, the softened water supply pipe and the softened water return pipe are respectively connected with a user side, a pipeline pulse descaling device is arranged on the softened water supply pipe, and a chemical feeder is connected in parallel with a pipeline connected with the user side through the pipeline pulse descaling device. Further, the cooling water supply pipe is externally connected with a cooling water inlet pipe. Further, a softened water circulating pump is arranged on a pipeline connected with the buffer water tank and the plate heat exchanger. Furthermore, the buffer water tank is also connected with a softened water replenishing pipe, and a water replenishing valve is arranged on the softened water replenishing pipe. Further, the cooling water supply pipe, the cooling water return pipe, the softened water supply pipe, the softened water return pipe and the softened water supplementing pipe are all provided with butterfly valves. Further, a liquid level meter is arranged in the buffer water tank. The system is also provided with a PLC control system, and the plate heat exchanger, the softened water circulating pump, the water supplementing valve, the pipeline pulse descaling instrument, the medicine feeder and the liquid level meter are respectively connected with the PLC control system, and the plate heat exchanger, the softened water circulating pump, the water supplementing valve, the pipeline pulse descaling instrument and the medicine feeder are not limited by a specific model, and the working function of the plate heat exchanger is realized. Compared with the prior art, the utility model has the following beneficial effects: According to the cooling water indirect heat exchange system provided by the utility model, softened water is cooled by utilizing cooling water indirect heat exchange, so that the equipment can stably and efficiently operate, the water quality entering the equipment is improved, a large amount of cooling water is saved, and the operation cost is reduced. Drawings The utility model is further illustrated by the following examples in conjunction with the accompanying drawings: FIG. 1 is a schematic diagram of a cooling water indirect heat exchange system of the present utility model. The device comprises a plate heat exchanger 1, a softened water circulating pump 2, a buffer water tank 4, a water supplementing valve 5, a user end 6, a cooling water supply pipe 7, a cooling water return pipe 8, a softened water supply pipe 9, a softened water return pipe 10, a softened water supplementing pipe 11, a pipeline pulse scale remover 12 and a drug feeder. Detailed Description The present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to the following examples. Example 1 A cooling water indirect heat exchange system is shown in fig. 1 and compris