Tank car cooler

Abstract

The utility model belongs to the field of cooling systems, and particularly relates to a tank car cooler which comprises a refrigerant loop, a secondary refrigerant loop, an evaporator and a frame with the cross section in a right trapezoid shape, the secondary refrigerant loop and the evaporator are both arranged in the frame, and the secondary refrigerant loop is partially located outside the frame. Two ends of the secondary refrigerant loop are respectively connected with a secondary refrigerant inlet and a secondary refrigerant outlet of the evaporator, and two ends of the refrigerant loop are respectively connected with a refrigerant inlet and a refrigerant outlet of the evaporator; according to the tank car, liquid in the tank car can be cooled, and it is guaranteed that the transported liquid is kept within the needed safe temperature range.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of cooling systems, in particular to a tank truck cooler. BACKGROUND

[0002] The tank transport vehicle is used for transporting liquid. Some liquids have no special requirements for temperature, and normal outdoor ambient temperature in four seasons is acceptable. However, some liquids require that the temperature must be maintained within a certain safe range. If the temperature exceeds the allowable range, the physical properties of the liquid may change, resulting in liquid scrap, and even danger. For example, the temperature of the electrolyte of new energy lithium battery is required to be controlled within 0-25℃. The tank truck is transported in outdoor long distance, and the liquid temperature will continue to rise and eventually exceed the allowable temperature in summer. Based on this situation, the liquid in the tank truck needs to be cooled to ensure that the transported liquid is maintained within the required safe temperature range. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the application is mainly to overcome the shortcomings of the prior art. A tank truck cooler is designed by adopting the mode of setting a frame with a right-angled trapezoidal cross section cooperating with a refrigerant circuit, a carrier refrigerant circuit and an evaporator. The right-angled trapezoidal design of the frame enables the frame to be installed in the triangular area formed by the circular tank body and the rectangular frame on the tank truck, without any part protruding from the vehicle body, so as to ensure the normal and safe driving of the tank truck, and solve the problem of how to cool the liquid in the tank truck to ensure that the transported liquid is maintained within the required safe temperature range.

[0004] In order to achieve the above purpose, the technical scheme adopted by the application is:

[0005] A tank truck cooler, comprising a refrigerant circuit, a carrier refrigerant circuit, an evaporator and a frame with a right-angled trapezoidal cross section. The carrier refrigerant circuit and the evaporator are arranged in the frame, and the carrier refrigerant circuit is partially arranged outside the frame. The two ends of the carrier refrigerant circuit are connected with the carrier refrigerant inlet and outlet of the evaporator respectively. The two ends of the refrigerant circuit are connected with the refrigerant inlet and outlet of the evaporator respectively.

[0006] Preferably, the refrigerant circuit comprises a compressor and a condenser. The refrigerant outlet of the evaporator is connected with the input end of the compressor. The output end of the compressor is connected with the input end of the condenser. The output end of the condenser is connected with the refrigerant inlet of the evaporator.

[0007] Preferably, a pressure regulating valve is arranged between the evaporator and the compressor.

[0008] Preferably, the output end of the condenser is provided with a filter and an expansion valve, the output end of the condenser is connected to the input end of the expansion valve, and the output end of the expansion valve is connected to the refrigerant inlet of the evaporator.

[0009] Preferably, the chilled water loop comprises a chilled water pump, a coil, the input end of the chilled water pump is connected to the outlet of the coil, the output end of the chilled water pump is connected to the chilled water inlet of the evaporator, and the chilled water outlet of the evaporator is connected to the inlet of the coil.

[0010] Preferably, the application further comprises a PLC controller, a first temperature sensor, and a second temperature sensor, the first temperature sensor is arranged at the inlet of the coil, the first temperature sensor and the second temperature sensor are both signal connected to the signal input end of the PLC controller, and the signal output end of the PLC controller is signal connected to the compressor, and in use, the second temperature sensor is arranged on the cooled object.

[0011] Preferably, the chilled water outlet of the evaporator is provided with the input end of an expansion tank, and the output end of the expansion tank is connected to the coil.

[0012] Compared with the prior art, the application has the following beneficial effects:

[0013] 1. The application adopts the mode of arranging the frame with a right-angled trapezoidal cross section in cooperation with the refrigerant loop, the chilled water loop, and the evaporator, and designs a tank truck cooler, the design of the right-angled trapezoid on the frame enables the frame to be installed in the triangular area formed by the circular tank body and the rectangular frame on the tank truck, without any part protruding from the vehicle body, so as to ensure the normal and safe driving of the tank truck, and solve the problem of how to cool the liquid in the tank truck and ensure that the transported liquid is maintained in the required safe temperature range.

[0014] 2. When the compressor is running, the low-temperature and low-pressure refrigerant gas is sucked from the output end of the evaporator, compressed into high-temperature and high-pressure gas, and discharged into the condenser, the high-temperature and high-pressure refrigerant gas exchanges heat with the air flowing through the condenser, and the refrigerant gas releases heat and is condensed into liquid, which enters the input end of the evaporator. The refrigerant liquid evaporates and absorbs heat in the evaporator, and the evaporated refrigerant gas is sucked by the compressor, so as to complete the working cycle of the loop I.

[0015] 3. The application can reduce the pressure to the safe working range of the compressor through the setting of the pressure regulating valve, so as to prevent the compressor from being damaged due to overload operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The faraway diagram of the application;

[0017] Figure 2 The image shown is a physical representation of the object in this application.

[0018] Figure 3 for Figure 2 A structural diagram of the back side;

[0019] Figure 4 This is a schematic diagram of the cross-section of the device installed inside the tank truck.

[0020] The components are: 1. Evaporator; 2. Frame; 3. Compressor; 4. Condenser; 5. Pressure regulating valve; 6. Expansion valve; 7. Refrigerant pump; 8. Coil; 9. Expansion tank; 10. Tank body; 11. Tank truck. Detailed Implementation

[0021] like Figures 1-4 As shown, a tank truck cooler includes a refrigerant circuit, a secondary refrigerant circuit, an evaporator 1, and a frame 2 with a right-angled trapezoidal cross-section. The secondary refrigerant circuit and the evaporator 1 are both located inside the frame 2, while the secondary refrigerant circuit is located outside the frame 2. The two ends of the secondary refrigerant circuit are respectively connected to the secondary refrigerant inlet and the secondary refrigerant outlet of the evaporator 1. The two ends of the refrigerant circuit are respectively connected to the refrigerant inlet and the refrigerant outlet of the evaporator 1.

[0022] In use, the portion of the refrigerant circuit outside the frame 2 is wrapped around the tank body of the tanker truck. The entire frame 2 is then placed in the gap between the tank body 10 and the frame of the tanker truck 11. Since the cross-section of the frame 2 is a right-angled trapezoid, the face of the frame 2 corresponding to the hypotenuse of the right-angled trapezoid rests against the tank body 10 of the tanker truck 11. The faces of the frame 2 corresponding to the two right-angled sides opposite the hypotenuse of the right-angled trapezoid rest against the bottom and side walls of the tanker truck 11, respectively. All other components of this application (except the refrigerant circuit wrapped around the tank body 10) are located inside the frame 2, thus not occupying space in the tanker truck 11. The refrigerant in the refrigerant circuit flows back into the evaporator 1 and exchanges heat with the refrigerant circuit within the evaporator 1, resulting in a low-temperature refrigerant flowing from the refrigerant outlet of the evaporator 1, which cools the tank body 10.

[0023] In a preferred embodiment, the refrigerant circuit includes a compressor 3 and a condenser 4. The refrigerant outlet of the evaporator 1 is connected to the input end of the compressor 3, the output end of the compressor 3 is connected to the input end of the condenser 4, and the output end of the condenser 4 is connected to the refrigerant inlet of the evaporator 1.

[0024] After the setting, the compressor 3 runs from the output end of the evaporator 1 to suck in low-temperature and low-pressure refrigerant gas and compress it into high-temperature and high-pressure gas, and then discharge it into the condenser 4. The high-temperature and high-pressure refrigerant gas exchanges heat with the air flowing through the condenser 4 in the condenser 4, and the refrigerant gas releases heat and then condenses into liquid to enter the input end of the evaporator. The refrigerant liquid evaporates in the evaporator 1 to absorb heat, and the evaporated refrigerant gas is sucked into the compressor, thus completing the working cycle of the refrigerant circuit.

[0025] As a preferred mode, a pressure regulating valve 5 is provided between the evaporator 1 and the compressor 3, so that when the evaporation pressure in the evaporator 1 is too high, the pressure regulating valve 5 can reduce the pressure to the safe working range of the compressor 3, preventing the compressor 3 from overloading and being damaged.

[0026] As a preferred mode, the output end of the condenser 4 is provided with a filter 1 and an expansion valve 6, the output end of the condenser 4 is connected to the input end of the expansion valve 6, and the output end of the expansion valve 6 is connected to the refrigerant inlet of the evaporator 1. The low-temperature and low-pressure gas-liquid mixture formed by the refrigerant liquid after throttling and pressure reduction by the expansion valve 6 enters the evaporator 1.

[0027] As a preferred mode, the heat carrier circuit includes a heat carrier pump 7, a coil 8, the input end of the heat carrier pump 7 is connected to the outlet of the coil 8, the output end of the heat carrier pump 7 is connected to the heat carrier inlet of the evaporator 1, and the heat carrier outlet of the evaporator 1 is connected to the inlet of the coil 8.

[0028] In this embodiment, the heat carrier pump 7 pumps the heat carrier whose temperature rises after absorbing heat from the coil 8 wound on the tank into the evaporator 1 to exchange heat with the refrigerant of the refrigerant circuit, the heat carrier releases heat and its temperature decreases, the cooled heat carrier is pumped into the coil 8 to absorb heat, the liquid in the tank transmits heat to the heat carrier and its temperature decreases, thereby maintaining the target temperature range required, the temperature of the heat carrier rises after absorbing heat, and then it is sucked into the heat carrier pump 7, thus completing the working cycle of the heat carrier circuit.

[0029] As a preferred mode, a PLC controller, a first temperature sensor and a second temperature sensor are further included, the first temperature sensor is arranged at the inlet of the coil 8, the first temperature sensor and the second temperature sensor are both signal connected to the signal input end of the PLC controller, and the signal output end of the PLC controller is signal connected to the compressor 3. In use, the second temperature sensor is arranged on the cooled object.

[0030] After the setting, the first temperature sensor is installed at the inlet of the coil 8 to monitor the temperature of the heat carrier, and the second temperature sensor is installed inside the tank to monitor the temperature of the liquid in the tank.

[0031] As a preferred way, the evaporator 1 of the carrier refrigerant outlet is provided with the input end of the expansion tank 9, and the output end of the expansion tank 9 is communicated with the coil 8.

[0032] The liquid temperature in the tank and the lower deviation value are set by the PLC controller, the PLC controller reads the liquid temperature in the tank and the carrier refrigerant temperature, when the liquid temperature in the tank reaches the set value, the system is self-checked, if there is a fault, the fault alarm is sent and the fault code is displayed, if there is no fault, the PLC controller sends the instruction, the carrier refrigerant pump 7 and the condenser 1 are started.

Claims

1. A tank truck cooler characterized by, The application relates to a refrigeration device, which comprises a refrigerant circuit, a carrier refrigerant circuit, an evaporator (1) and a frame (2) with a right-angled trapezoidal cross section, wherein the carrier refrigerant circuit and the evaporator (1) are arranged in the frame (2), the refrigerant circuit is partially arranged outside the frame (2), the two ends of the carrier refrigerant circuit are connected to the carrier refrigerant inlet and outlet of the evaporator (1) respectively, and the two ends of the refrigerant circuit are connected to the refrigerant inlet and outlet of the evaporator (1) respectively.

2. A tank truck cooler according to claim 1, wherein The refrigerant circuit comprises a compressor (3) and a condenser (4), the refrigerant outlet of the evaporator (1) is connected to the input end of the compressor (3), the output end of the compressor (3) is connected to the input end of the condenser (4), and the output end of the condenser (4) is connected to the refrigerant inlet of the evaporator (1).

3. A tank truck cooler according to claim 2, wherein A pressure regulating valve (5) is arranged between the evaporator (1) and the compressor (3).

4. A tank truck cooler according to claim 2, wherein The output end of the condenser (4) is provided with a filter and an expansion valve (6), the output end of the condenser (4) is connected to the input end of the expansion valve (6), and the output end of the expansion valve (6) is connected to the refrigerant inlet of the evaporator (1).

5. A tank truck cooler according to claim 2, wherein The carrier refrigerant circuit comprises a carrier refrigerant pump (7) and a coil (8), the input end of the carrier refrigerant pump (7) is connected to the outlet of the coil (8), the output end of the carrier refrigerant pump (7) is connected to the carrier refrigerant inlet of the evaporator (1), and the carrier refrigerant outlet of the evaporator (1) is connected to the inlet of the coil (8).

6. A tank truck cooler according to claim 5, wherein The refrigeration device further comprises a PLC controller, a first temperature sensor and a second temperature sensor, the first temperature sensor is arranged at the inlet of the coil (8), the first temperature sensor and the second temperature sensor are both signal-connected to the signal input end of the PLC controller, the signal output end of the PLC controller is signal-connected to the compressor (3), and the second temperature sensor is arranged on a cooled object in use.

7. A tank truck cooler according to claim 5 wherein, The carrier refrigerant outlet of the evaporator (1) is provided with the input end of an expansion tank (9), and the output end of the expansion tank (9) is connected to the coil (8).

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