Centrifugal machine jacket heat exchange system

Abstract

A jacket heat exchange system of a centrifugal machine relates to the technical field of centrifugal machines and comprises a water storage tank, a centrifugal pump and a heat exchanger. The water storage tank is provided with a water injection pipeline and a liquid level switch used for controlling on-off of the centrifugal pump, the water storage tank is connected to an external water source through the water injection pipeline, the lower portion of the water storage tank is connected to a water inlet of the centrifugal pump through a first water outlet pipeline, and the heat exchanger is provided with a heat exchange pipe array composed of a plurality of heat exchange pipes. A water outlet of the centrifugal pump is connected to a water inlet end pipe opening of each heat exchange pipe through a second water outlet pipeline, a third water outlet pipe is connected to a water outlet end pipe opening of each heat exchange pipe, the heat exchange pipes in the middle of the heat exchange pipe array are divided into multiple groups in pairs, and the heat exchange pipes in the same group are arranged in an X shape; a temperature sensor and a pressure sensor are arranged on the third water outlet pipe, the third water outlet pipe penetrates through the centrifugal machine jacket and then is connected to the water injection pipeline, a refrigerant inlet of the heat exchanger is connected with a feeding pipeline used for supplying refrigerant, and a pressure gauge and a feeding valve are arranged on the feeding pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to the technology of a centrifuge jacket heat exchange system. Background Art

[0002] Heat exchange modules are an indispensable part of many system equipment. Heat exchange modules are usually used in the system to provide heat exchange medium for core process equipment, and heat or cool the product or the environment in which the product is located to the actual use temperature, so as to meet the established production requirements;

[0003] Centrifuge equipment is a relatively early link in the production process and is particularly important for the early processing of raw materials. However, centrifuge systems are often not equipped with corresponding heat exchange systems, and some manufacturers will consider adding centrifuge equipment during the process of upgrading the production process. However, due to the fact that the supporting facilities required for the later transformation were not taken into account in the early planning, the user cannot provide the actual use environment required by the equipment, so the manufacturer mainly relies on its own supporting facilities to meet the use needs;

[0004] The existing heat exchange system has a poor heat exchange effect on the centrifuge. When using the centrifuge, the required production temperature is different for different production raw materials. Poor heat exchange effect will affect production efficiency. Utility Model Content

[0005] In view of the defects existing in the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a centrifuge jacket heat exchange system with good heat exchange effect.

[0006] In order to solve the above technical problems, the utility model provides a centrifuge jacket heat exchange system, which is characterized by comprising a water storage tank, a centrifugal pump and a heat exchanger;

[0007] The water storage tank is provided with a water injection pipe and a liquid level switch for controlling the on and off of the centrifugal pump, the water injection pipe is provided with a water injection valve, the water storage tank is connected to an external water source through the water injection pipe, the lower part of the water storage tank is connected to the water inlet of the centrifugal pump through a first water outlet pipe, and the first water outlet pipe is provided with an overflow pipe connected to the upper part of the water storage tank;

[0008] The heat exchanger is provided with a heat exchange tube array consisting of a plurality of heat exchange tubes, the water outlet of the centrifugal pump is respectively connected to the water inlet end of each heat exchange tube through the second water outlet pipe, the water outlet end of each heat exchange tube is connected to the third water outlet pipe, the heat exchange tubes in the middle of the heat exchange tube array are divided into a plurality of groups in pairs, and the heat exchange tubes in the same group are arranged in an X shape;

[0009] The third water outlet pipe is provided with a temperature sensor and a pressure sensor, and is connected to a water injection pipe after passing through the centrifuge jacket. The refrigerant inlet of the heat exchanger is connected with a feed pipe for supplying refrigerant, and the feed pipe is provided with a pressure gauge and a feed valve.

[0010] Furthermore, the remaining heat exchange tubes on the heat exchanger are arranged in line.

[0011] The centrifuge jacket heat exchange system provided by the utility model utilizes a pressure sensor and a temperature sensor to adjust the cold coal feed amount, thereby controlling the temperature of the cooling water entering the centrifuge; and utilizes heat exchange tubes arranged in an X shape for heat exchange. Compared with the existing heat exchanger in which the heat exchange tubes are arranged in line, the solution of the utility model can expand the heat exchange area within the same heat exchange tube volume, and the heat exchange effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a piping diagram of a centrifuge jacket heat exchange system according to an embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the layout of heat exchange tubes in a centrifuge jacket heat exchange system according to an embodiment of the utility model;

[0014] Figure 3 It is a schematic diagram of the in-line arrangement of heat exchange tubes in an existing heat exchanger. DETAILED DESCRIPTION

[0015] The following is a further detailed description of an embodiment of the utility model in conjunction with the accompanying drawings, but the embodiment is not intended to limit the utility model. All similar structures and similar changes of the utility model should be included in the protection scope of the utility model. The semicolons in the utility model all represent the relationship of and.

[0016] like Figure 1 As shown, a centrifuge jacket heat exchange system provided by an embodiment of the utility model comprises a water storage tank 1, a centrifugal pump 2 and a heat exchanger 3;

[0017] The water storage tank 1 is provided with a water injection pipe 11 and a liquid level switch 12 for controlling the on and off of the centrifugal pump 2. The water injection pipe 11 is provided with a water injection valve 13. The water storage tank 1 is connected to an external water source through the water injection pipe 11. The lower part of the water storage tank 1 is connected to the water inlet of the centrifugal pump 2 through a first water outlet pipe 21. The first water outlet pipe 21 is provided with an overflow pipe 14 connected to the upper part of the water storage tank 1.

[0018] The heat exchanger 3 is provided with a heat exchange tube array consisting of a plurality of heat exchange tubes. The water outlet of the centrifugal pump 2 is connected to the water inlet end of each heat exchange tube through the second water outlet pipe 22. The water outlet end of each heat exchange tube is connected to a third water outlet pipe 31. The heat exchange tubes in the middle of the heat exchange tube array are divided into multiple groups in pairs, and the heat exchange tubes in the same group are arranged in an X shape.

[0019] The third water outlet pipe 31 is provided with a temperature sensor 32 and a pressure sensor 33. The third water outlet pipe 31 passes through the centrifuge jacket and is connected to the water injection pipe 11. The refrigerant inlet of the heat exchanger 3 is connected with a feed pipe 34 for supplying refrigerant. The feed pipe 34 is provided with a pressure gauge 35 and a feed valve 36.

[0020] In the embodiment of the utility model, the remaining heat exchange tubes on the heat exchanger are arranged in line.

[0021] The centrifuge jacket heat exchange system provided in the embodiment of the utility model is suitable for cooling the centrifuge jacket, and its working principle is as follows:

[0022] In the initial state, the water storage tank 1 is in an empty state;

[0023] Open the water injection valve 13 to inject purified water from an external water source into the water storage tank 1 through the water injection pipe 11. When the water level in the water storage tank 1 is higher than the liquid level switch 12, the centrifugal pump 2 is started, and at the same time, the feed pipe 34 for supplying cold coal to the heat exchanger 3 is opened. The purified water passes through the heat exchanger 3 and then enters the centrifuge jacket. The cooled purified water passes through the third water outlet pipe 31 and the centrifuge jacket and then enters the water injection pipe 11 and returns to the water storage tank 1.

[0024] The pressure of the purified water entering the centrifuge housing is monitored by the pressure sensor 33 on the third water outlet pipe 31. When the pressure exceeds or falls below the set parameter, the pressure of the purified water is adjusted by adjusting the speed of the centrifugal pump 2. The temperature of the purified water entering the centrifuge housing is monitored by the temperature sensor 32 on the third water outlet pipe 31. When the temperature of the purified water needs to be adjusted, the opening of the feed valve 36 is adjusted according to the pressure gauge 35 on the feed pipe 34, thereby controlling the amount of refrigerant entering the heat exchanger.

[0025] like Figure 3 As shown, A1 is the water inlet end of the heat exchange tubes arranged in series, and A2 is the water outlet end of the heat exchange tubes arranged in series;

[0026] like Figure 2As shown, B1 is the water inlet end of the heat exchange tube arranged in an X shape, and B2 is the water outlet end of the heat exchange tube arranged in an X shape. The heat exchange tubes in the middle of the heat exchange tube array are arranged in an X shape, so heat exchange tubes with a larger interval between the inlet and outlet ends can be used. While the heat exchange area is expanded, the heat exchange tube outlet end is less affected by the heat at the inlet end of the heat exchange tube, thereby improving the heat exchange efficiency. The inlet end and the outlet end of the heat exchange tube arranged in a straight line have a smaller interval between the inlet end and the outlet end of the heat exchange tube, and the heat is difficult to dissipate.

Claims

1. A centrifuge jacket heat exchange system, characterized in that: Includes water storage tank, centrifugal pump and heat exchanger; The water storage tank is provided with a water injection pipe and a liquid level switch for controlling the on and off of the centrifugal pump, the water injection pipe is provided with a water injection valve, the water storage tank is connected to an external water source through the water injection pipe, the lower part of the water storage tank is connected to the water inlet of the centrifugal pump through a first water outlet pipe, and the first water outlet pipe is provided with an overflow pipe connected to the upper part of the water storage tank; The heat exchanger is provided with a heat exchange tube array consisting of a plurality of heat exchange tubes, the water outlet of the centrifugal pump is respectively connected to the water inlet end of each heat exchange tube through the second water outlet pipe, the water outlet end of each heat exchange tube is connected to the third water outlet pipe, the heat exchange tubes in the middle of the heat exchange tube array are divided into a plurality of groups in pairs, and the heat exchange tubes in the same group are arranged in an X shape; The third water outlet pipe is provided with a temperature sensor and a pressure sensor, and is connected to a water injection pipe after passing through the centrifuge jacket. The refrigerant inlet of the heat exchanger is connected with a feed pipe for supplying refrigerant, and the feed pipe is provided with a pressure gauge and a feed valve.

2. The centrifuge jacket heat exchange system according to claim 1, characterized in that: The remaining heat exchange tubes on the heat exchanger are arranged in line.

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