Oil-fluorine separator for marine water chilling unit

Abstract

The utility model relates to an oil-fluorine separator of a marine water chilling unit. A condenser is connected with a coil exhaust heating interface of the oil-fluorine separator through a high-pressure gaseous refrigerant pipeline, and is connected with an exhaust interface of the oil-fluorine separator through the high-pressure gaseous refrigerant pipeline and a high-pressure exhaust electromagnetic valve; an air suction interface of the oil-fluorine separator is connected with the evaporator through a low-pressure air suction electromagnetic valve and a low-pressure gaseous refrigerant pipeline; a low-pressure gas outlet connector of the oil-fluorine separator is connected with the evaporator through a low-pressure gaseous refrigerant pipeline; the evaporator is connected with a liquid inlet interface of the oil-fluorine separator through an oil-fluorine mixture pipeline and a low-pressure liquid inlet electromagnetic valve; an oil outlet connector of the oil-fluorine separator is connected with an oil tank through a lubricating oil pipeline via a one-way valve; the electrical control box is connected with the high-pressure exhaust electromagnetic valve, the low-pressure air suction electromagnetic valve and the low-pressure liquid inlet electromagnetic valve through signal lines. The oil-fluorine separation device can be used for separating the oil-fluorine mixture on the liquid surface of the flooded evaporator, and the heat exchange effect of the flooded evaporator is improved.

Description

Technical Field

[0001] The utility model relates to an oil-fluorine separator for a marine chiller, in particular to an oil-fluorine separator in a marine centrifugal chiller, suitable for separating oil and fluorine on the liquid surface of a flooded evaporator. Background Art

[0002] In marine chillers, after prolonged operation, an oil-fluorine mixture forms on the liquid surface of the flooded evaporator, severely impacting the heat exchange efficiency of the flooded evaporator. Therefore, oil-fluorine separation is necessary. Currently, oil separators primarily include washing, centrifugal, packing, and filtration types. These types are often integrated into the refrigeration system and require an ejector to inject the liquid mixture of low-pressure refrigeration oil and refrigerant in the evaporator and the liquid mixture of high-pressure refrigeration oil and refrigerant in the condenser into the oil-fluorine separator. These separators produce a small amount of oil and fluorine separation, are energy-intensive, and cannot be used to separate oils and liquids on a regular basis as needed.

[0003] After a marine chiller has been running for a long time, an oil-liquid mixture forms on the liquid surface of the flooded evaporator, seriously affecting the heat exchange efficiency of the flooded evaporator. Therefore, the present invention is proposed to separate the oil-fluorine mixture on the liquid surface of the flooded evaporator, thereby improving the heat exchange efficiency of the flooded evaporator. Summary of the Invention

[0004] The utility model provides an oil-fluorine separator for a marine chiller, which is used for separating the oil-fluorine mixture on the liquid surface of a flooded evaporator and improving the heat exchange effect of the flooded evaporator.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: an oil-fluorine separator for a marine chiller, comprising an electrical control box, a high-pressure exhaust solenoid valve, a low-pressure suction solenoid valve, an evaporator, a low-pressure liquid inlet solenoid valve, an oil-fluorine separator, an oil tank, and a condenser. The condenser is connected to the coil exhaust heating interface of the oil-fluorine separator through a high-pressure gaseous refrigerant pipeline, and is connected to the exhaust interface of the oil-fluorine separator through a high-pressure gaseous refrigerant pipeline and a high-pressure exhaust solenoid valve; the suction interface of the oil-fluorine separator is connected to the evaporator through a low-pressure suction solenoid valve and a low-pressure gaseous refrigerant pipeline; the low-pressure outlet interface of the oil-fluorine separator is connected to the evaporator through a low-pressure gaseous refrigerant pipeline; the evaporator is connected to the liquid inlet interface of the oil-fluorine separator through an oil-fluorine mixture pipeline and a low-pressure liquid inlet solenoid valve; the oil outlet interface of the oil-fluorine separator is connected to the oil tank through a lubricating oil pipeline via a one-way valve; the electrical control box is respectively connected to the high-pressure exhaust solenoid valve, the low-pressure suction solenoid valve, and the low-pressure liquid inlet solenoid valve through signal lines.

[0006] Furthermore, the oil-fluorine separator includes an oil-fluorine separator high-pressure air inlet angle valve II, an oil-fluorine separator high-pressure air inlet angle valve I, a joint, an oil-fluorine separator air suction angle valve, a cover plate, a cylinder, an oil-fluorine separator liquid inlet angle valve, an oil-fluorine separator air outlet angle valve, a base plate, a coil, an electromagnetic liquid level gauge, and an oil-fluorine separator oil outlet angle valve. The top and bottom of the cylinder are fixedly connected with a cover plate and a base plate respectively; a coil is provided in the cylinder, and the side of the cylinder is equipped with an oil-fluorine separator high-pressure air inlet angle valve II, an oil-fluorine separator oil outlet angle valve, an oil-fluorine separator liquid inlet angle valve, and an oil-fluorine separator air outlet angle valve; the cover plate is connected to the oil-fluorine separator high-pressure air inlet angle valve I and the oil-fluorine separator air suction angle valve respectively through joints.

[0007] Furthermore, the oil-fluorine separator high-pressure air inlet angle valve II is connected to the exhaust heating interface of the coil, and the oil-fluorine separator air outlet angle valve is connected to the low-pressure air outlet interface of the coil;

[0008] Furthermore, the cylinder is made of No. 20 carbon steel and is cylindrical in shape as a whole.

[0009] Furthermore, the cover plate and the base plate are made of Q345B material.

[0010] Furthermore, the coil is made of T2 material and is in a winding form.

[0011] The beneficial effects of the utility model are:

[0012] The utility model is a new type of marine chiller oil-fluorine separator, which has the following advantages:

[0013] (1) No ejector is required, and the oil-liquid mixture flows from the evaporator to the oil-fluorine separator by gravity.

[0014] (2) No additional energy (such as electric heating, etc.) is required for oil-fluorine separation, thereby achieving energy saving.

[0015] (3) This oil-fluorine separator is an independent system with strong maintainability and low failure rate.

[0016] (4) The oil can be separated at regular intervals, and the working conditions can meet manual and automatic control.

[0017] (5) High separation efficiency.

[0018] (6) It can meet the marine environment, such as tilting, swaying, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a system diagram of the oil-fluorine separator for a marine chiller of the utility model;

[0020] Figure 2 It is a structural diagram of an oil-fluorine separator;

[0021] In the figure: 1—electrical control box, 2—high-pressure exhaust solenoid valve, 3—oil-fluorine separator high-pressure air inlet angle valve I, 4—oil-fluorine separator air intake angle valve, 5—low-pressure air intake solenoid valve, 6—evaporator, 7—low-pressure liquid inlet solenoid valve, 8—oil-fluorine separator liquid inlet angle valve, 9—oil-fluorine separator air outlet angle valve, 10—oil-fluorine separator, 11—oil-fluorine separator oil outlet angle valve, 12—oil-fluorine separator high-pressure air inlet angle valve II, 13—check valve, 14—oil tank, 15—condenser, 16—connector, 17—cover plate, 18—cylinder, 19—base plate, 20—coil, 21—electromagnetic liquid level gauge. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, a new type of marine chiller oil-fluorine separator proposed in an embodiment of the utility model includes an electrical control box 1, a high-pressure exhaust solenoid valve 2, an oil-fluorine separator high-pressure air inlet angle valve I3, an oil-fluorine separator air intake angle valve 4, a low-pressure air intake solenoid valve 5, an evaporator 6, a low-pressure liquid inlet solenoid valve 7, an oil-fluorine separator liquid inlet angle valve 8, an oil-fluorine separator air outlet angle valve 9, an oil-fluorine separator 10, an oil-fluorine separator oil outlet angle valve 11, an oil-fluorine separator high-pressure air inlet angle valve II 12, a one-way valve 13, an oil tank 14, and a condenser 15.

[0024] The condenser 15 is connected to the exhaust (heating) interface of the oil-fluorine separator 10 through the high-pressure gaseous refrigerant pipeline and the oil-fluorine separator high-pressure air intake angle valve II 12, and is connected to the exhaust interface of the oil-fluorine separator 10 through the high-pressure gaseous refrigerant pipeline, the high-pressure exhaust solenoid valve 2 and the oil-fluorine separator high-pressure air intake angle valve I 3; the intake interface of the oil-fluorine separator 10 is connected to the evaporator 6 through the oil-fluorine separator intake angle valve 4, the low-pressure intake solenoid valve 5 and the low-pressure gaseous refrigerant pipeline; the oil-fluorine separator 10 The low-pressure air outlet interface is connected to the evaporator 6 through the oil-fluorine separator air outlet angle valve 9 and the low-pressure gaseous refrigerant pipeline; the evaporator 6 is connected to the liquid inlet interface through the oil-fluorine mixture pipeline and the low-pressure liquid inlet solenoid valve 7 via the oil-fluorine separator liquid inlet angle valve 8; the oil outlet interface of the oil-fluorine separator 10 is connected to the oil tank 14 through the oil-fluorine separator oil outlet angle valve 11 and the lubricating oil pipeline via the one-way valve 13; the electrical control box 1 is respectively connected to the high-pressure exhaust solenoid valve 2, the low-pressure suction solenoid valve 5, and the low-pressure liquid inlet solenoid valve 7 through signal lines.

[0025] The oil-fluorine separator of the new marine chiller of the utility model is divided into normal working condition and oil-draining working condition. Under normal working condition, the oil-draining working condition is performed once every 200 hours of operation, and the oil-draining working condition is about 10 seconds per time. The high-pressure exhaust solenoid valve 2, the low-pressure suction solenoid valve 5, and the low-pressure liquid inlet solenoid valve 7 are controlled by the electrical control box to start and stop and switch working conditions. When the solenoid valve ( Figure 1 When the fault occurs in No. 2, 5, 7), the angle valve ( Figure 1Serial numbers 3, 4, 8, 9, 11, 12) Manual control working mode switching.

[0026] During normal operating conditions, the high-pressure exhaust solenoid valve 2 is closed, and the low-pressure intake solenoid valve 5 and the low-pressure liquid inlet solenoid valve 7 are open. High-temperature, high-pressure gas from the condenser 15 exchanges heat with the oil-fluorine mixture through the coil of the oil-fluorine separator 10, vaporizing the Freon in the oil-fluorine mixture and discharging it through the intake port of the oil-fluorine separator 10 to the evaporator 6.

[0027] During the oil discharge operation, the high-pressure exhaust solenoid valve 2 is opened, the low-pressure intake solenoid valve 5 and the low-pressure liquid inlet solenoid valve 7 are closed, and the high-temperature and high-pressure gas from the condenser 15 pressurizes the oil separated in the lower layer of the oil-fluorine separator 10 to the oil tank 14.

[0028] like Figure 2 As shown, the oil-fluorine separator 10 mainly includes an oil-fluorine separator high-pressure air intake angle valve II 12, an oil-fluorine separator high-pressure air intake angle valve I 3, a connector 16, an oil-fluorine separator air intake angle valve 4, a low-pressure air intake solenoid valve 5, a cover plate 17, a cylinder 18, an oil-fluorine separator liquid inlet angle valve 8, an oil-fluorine separator air outlet angle valve 9, a bottom plate 19, a coil 20, an electromagnetic liquid level gauge 21, and an oil-fluorine separator oil outlet angle valve 11.

[0029] The top and bottom of the cylinder 18 are fixedly connected with a cover plate 17 and a bottom plate 19 respectively; a coil 20 is provided in the cylinder 18, and the side of the cylinder 18 is installed with an oil-fluorine separator high-pressure air inlet angle valve Ⅱ12, an oil-fluorine separator oil outlet angle valve 11, an oil-fluorine separator liquid inlet angle valve 8, and an oil-fluorine separator air outlet angle valve 9, among which the oil-fluorine separator high-pressure air inlet angle valve Ⅱ12 is connected to the exhaust (heating) interface of the coil 20, and the oil-fluorine separator air outlet angle valve 9 is connected to the low-pressure air outlet interface of the coil 20; the cover plate 17 is connected to the oil-fluorine separator high-pressure air inlet angle valve Ⅰ3 and the oil-fluorine separator air intake angle valve 4 through the joint 16.

[0030] Cylinder 18 is made of No. 20 carbon steel and is cylindrical in shape. Coil 20 is made of T2 material and is wound around the tube, saving space while increasing the heat exchange area between coil 20 and the oil-fluorine mixture. Cover plate 17 and base plate 19 are made of Q345B. After assembly, the oil-fluorine separator undergoes airtightness tests on both the shell and tube sides. If these tests pass, a vacuum test is performed.

Claims

1. An oil-fluorine separator for a marine chiller, characterized by: It includes an electrical control box, a high-pressure exhaust solenoid valve, a low-pressure suction solenoid valve, an evaporator, a low-pressure liquid inlet solenoid valve, an oil-fluorine separator, an oil tank, and a condenser. The condenser is connected to the coil exhaust heating interface of the oil-fluorine separator through a high-pressure gaseous refrigerant pipeline, and is connected to the exhaust interface of the oil-fluorine separator through a high-pressure gaseous refrigerant pipeline and a high-pressure exhaust solenoid valve; the suction interface of the oil-fluorine separator is connected to the evaporator through a low-pressure suction solenoid valve and a low-pressure gaseous refrigerant pipeline; the low-pressure outlet interface of the oil-fluorine separator is connected to the evaporator through a low-pressure gaseous refrigerant pipeline; the evaporator is connected to the liquid inlet interface of the oil-fluorine separator through an oil-fluorine mixture pipeline and a low-pressure liquid inlet solenoid valve; the oil outlet interface of the oil-fluorine separator is connected to the oil tank through a lubricating oil pipeline via a one-way valve; the electrical control box is connected to the high-pressure exhaust solenoid valve, the low-pressure suction solenoid valve, and the low-pressure liquid inlet solenoid valve through signal lines.

2. The marine chiller oil-fluorine separator according to claim 1, characterized in that: The oil-fluorine separator includes an oil-fluorine separator high-pressure air inlet angle valve II, an oil-fluorine separator high-pressure air inlet angle valve I, a joint, an oil-fluorine separator air suction angle valve, a cover plate, a cylinder, an oil-fluorine separator liquid inlet angle valve, an oil-fluorine separator air outlet angle valve, a bottom plate, a coil, an electromagnetic liquid level gauge, and an oil-fluorine separator oil outlet angle valve. The top and bottom of the cylinder are fixedly connected with a cover plate and a bottom plate respectively; a coil is provided in the cylinder, and the side of the cylinder is equipped with an oil-fluorine separator high-pressure air inlet angle valve II, an oil-fluorine separator oil outlet angle valve, an oil-fluorine separator liquid inlet angle valve, and an oil-fluorine separator air outlet angle valve; the cover plate is connected to the oil-fluorine separator high-pressure air inlet angle valve I and the oil-fluorine separator air suction angle valve respectively through joints.

3. The marine chiller oil-fluorine separator according to claim 2, characterized in that: The high-pressure air inlet angle valve II of the oil-fluorine separator is connected to the exhaust heating interface of the coil, and the air outlet angle valve of the oil-fluorine separator is connected to the low-pressure air outlet interface of the coil.

4. The marine chiller oil-fluorine separator according to claim 2, characterized in that: The cylinder is made of No. 20 carbon steel and is cylindrical in shape.

5. The oil-fluorine separator for a marine chiller according to claim 2, characterized in that: The cover and base are made of Q345B material.

6. The marine chiller oil-fluorine separator according to claim 1, characterized in that: The coil is made of T2 material and is in a winding form.

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