Explosive air-dispersing refrigerated truck and control method thereof
By setting up a refrigeration explosion device on the front side of the rear compartment of the refrigeration truck, high-pressure air conditioning and spiral wind blades form a high-speed rotating air mass, the problems of insufficient air conditioning and insignificant refrigeration effect are solved, and efficient and energy-saving air conditioning and uniform refrigeration effect are achieved.
Patent Information
- Application Number
- CN201710217567.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2017-04-05
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2037-04-05
AI Technical Summary
The air-conditioning conveying system of existing refrigerated trucks has problems such as insufficient air-conditioning, insufficient refrigeration effect at the rear of the vehicle, and large energy consumption. The traditional refrigerated structure occupies a large space, reducing the cargo load capacity.
The explosive air-conditioning conveying system is adopted. By setting up a cooling air-conditioning explosion device on the front side of the rear compartment, high-pressure air-conditioning and spiral wind blades form a high-speed rotating air mass, and spraying air-conditioning to the rear of the rear compartment to achieve efficient transmission and uniform distribution of air-conditioning.
While achieving a large amount of air conditioning, it saves energy, ensures that the refrigeration effect of the rear compartment is obvious, and does not occupy additional space, improving the overall transportation efficiency.
Smart Images
Figure CN106864344B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a cold air delivery system for a refrigerated truck, in particular to an explosive-dispersion cold air delivery refrigerated truck and a control method thereof. Background Art
[0002] At present, there are two kinds of refrigerated trucks on the market. One is to simply use an integral trunk for refrigeration, and the other is to separate the trunk by partitions. In this way, it can be reasonably assembled according to the amount of loaded items, and the refrigeration capacity and temperature used can also be adjusted. However, there are certain problems. For example, some structures are too complicated and large in size, which wastes the space in the trunk and reduces the cargo carrying capacity. On the other hand, the rear compartment conducts cold air through the vents, and the cooling effect at the rear of the vehicle is not obvious and energy-consuming. For example, a Chinese patent with publication number CN20383561 discloses a refrigerated compartment, including a compartment body, at least one of the left side wall and the right side wall of the compartment is detachably installed with a compartment inner side refrigeration structure, the compartment inner side refrigeration structure includes a plurality of side-mounted brackets and a plurality of cold storage strips, the side-mounted brackets are vertically attached to the left side wall or the right side wall of the compartment, and a plurality of L-shaped pallets are fixedly connected to the side-mounted brackets from top to bottom in sequence, a U-shaped groove is formed between the side-mounted brackets and the pallets, and the cold storage strips are placed in the U-shaped groove formed between the side-mounted brackets and the pallets. The present invention can have a good refrigeration effect without changing the structure of the compartment body by installing a special refrigeration structure on the inner wall of the compartment. However, the compartment inner side refrigeration structure includes a plurality of side-mounted brackets and a plurality of cold storage strips, which occupy a certain volume, thereby narrowing the overall space of the compartment and reducing the amount of goods transported. Another example is a Chinese patent with publication number CN20362347, which discloses a dual-temperature cold storage refrigerated truck, including a front, a front compartment, a rear compartment and an electrical connection line. A cold storage unit is installed above the front, a movable door is installed on the body of the front compartment, a partition is provided between the front compartment and the rear compartment, and a plurality of rectangular freezing strips are evenly provided at the inner top position of the front compartment; a switching power supply, a battery and a generator are respectively installed at the bottom of the front compartment, the switching power supply is connected to the cold storage unit through an electrical connection line, and the battery is connected to the generator and the cold storage unit in turn through an electrical connection line; a vent is provided at each of the two corners of the upper part of the partition, and an aluminum air guide plate is provided at each of the left and right corners of the top of the rear compartment. The present invention not only supports external 370V power supply, but also can use generator power generation and refrigeration, and the exhaust part of the rear compartment is more sophisticated in design and more convenient to install. The invention conducts the cold air from the front compartment to the rear compartment through two vents on the partition. Although the electronic fan on the top of the rear compartment increases the flow range of the cold air, the cold air naturally conducted from the vents is limited because the compartment of the refrigerated truck is very long. In addition, the temperature difference between the inside and outside of the rear door is extremely large, so the temperature at the rear door is often higher, which fails to achieve the purpose of refrigeration. Summary of the invention
[0003] The purpose of the present invention is to solve the problem that there are many cold storage bars, which are large in size, waste the space in the car and reduce the cargo carrying capacity, while the ordinary vents have limited cold air conduction, the refrigeration effect at the rear of the car is not obvious and energy is consumed. The present invention realizes an energy-saving explosive-dispersion cold air delivery refrigerated car which occupies a small space, has a large cold air delivery volume and ensures an obvious refrigeration effect in the rear compartment.
[0004] The above technical problems of the present invention are mainly solved by the following technical solutions: comprising a front compartment, a rear compartment and a control unit, the front side of the rear compartment is provided with a cold air blasting device, the cold air blasting device comprises a cold air ejection chamber, a high-pressure air inlet, an air outlet and an ejection piston, the left cavity of the cold air ejection chamber gradually becomes smaller and is sealed and connected with the cylindrical pipe air outlet, a switch valve is provided at the right end of the air outlet, an ejection piston adapted thereto is provided in the cold air ejection chamber, the ejection piston is connected with a connecting rod passing through the right side wall of the cold air ejection chamber, the connecting rod is connected to a power device, the power device and the switch valve are connected to the control unit through a control circuit, when the ejection piston moves to the rightmost state of the cold air ejection chamber, the high-pressure air inlet is located on the left side of the ejection piston, an air intake switch device is provided on the outside of the air inlet, the air intake switch device is connected to a high-pressure cold air source, and the control circuit of the high-pressure cold air source is connected to the control unit. The control unit controls the air intake on-off device to open, so that the high-pressure cold air source enters the cold air ejection chamber through the high-pressure air intake port, and then the control unit provides signals to the power unit and the on-off valve, the on-off valve opens, and at the same time the power unit drives the ejection piston to move to the left at high speed. At this time, the gas in the cold air ejection chamber enters the air outlet to form an air mass and sprays toward the rear of the rear compartment, making the temperature in the rear of the rear compartment lower, the temperature of the entire rear compartment more balanced, and the refrigeration effect more obvious.
[0005] Preferably, a spiral blade adapted to the air outlet is fixed in the air outlet, and the spiral blade is provided with a plurality of continuous spirals. Under the action of the spiral blade, the air mass rotates at a high speed, thereby improving the directionality of the air mass and lengthening the range of the air mass, making the force greater and the bursting effect better.
[0006] Preferably, the air intake on-off device includes an air intake chamber, an air intake piston, an elastic telescopic rod and a cold air inlet. A cold air inlet is provided on the right side of the air intake chamber, and an air intake piston adapted thereto is provided in the air intake chamber. An elastic telescopic rod passing through the left wall of the air intake chamber is connected to the left side of the air intake piston, and the other end of the elastic telescopic rod is fixedly mounted to the top of the rear compartment through a fixing rod. When the elastic telescopic rod is not subjected to force, the air intake piston is located on the right side of the air intake port or covers the top of the air intake port. The air intake piston moves left and right through the elastic telescopic rod under the action of high-pressure cold air, and no other separate power is required, which is more energy-saving.
[0007] As a preferred embodiment, the air intake on-off device is provided with an air intake pipe and a pneumatic control valve, and the control pipeline and main air path of the pneumatic control valve are both connected to the high-pressure cold air source. The pneumatic control valve has a simpler structure and can also achieve the purpose.
[0008] Preferably, the high-pressure cold air source includes a booster pump, the air inlet of the booster pump is connected to the front compartment, and the air outlet of the booster pump is connected to the cold air inlet. The booster pump makes the pressure of the high-pressure cold air source higher and exerts a greater force on the air inlet piston.
[0009] Preferably, a temperature sensor is installed at the rear end of the top of the rear compartment, and the temperature sensor is connected to the control unit through a control circuit. After the temperature sensor is installed, the control unit can continuously obtain the temperature value in the rear compartment, and then issue a working state command according to the comparison result between the temperature value and the set temperature value, so as to realize automation.
[0010] As a preferred embodiment, the rear compartment is provided with a plurality of cold air blasting devices, which can be installed according to the size of the compartment and the refrigeration requirements, and are suitable for various work requirements.
[0011] The present invention also provides a control method for a burst-type cold air transport refrigerated vehicle. When the temperature value measured by the temperature sensor is transmitted to the control unit, the control unit performs the following controls according to the obtained temperature value:
[0012] 1. When the temperature value measured by the temperature sensor is equal to the set value of the control unit,
[0013] 1) The control unit sends a signal to the booster pump, and the booster pump starts and stops at a low frequency;
[0014] 2) When the booster pump is started, the high-pressure cold air source enters the air intake chamber through the cold air inlet. The air intake piston moves to the left under the action of the high-pressure cold air, opens the high-pressure air intake port, and lets air into the cold air ejection chamber;
[0015] 3) The control unit controls the booster pump to stop working, the elastic telescopic rod automatically returns to the initial state, the high-pressure air inlet is closed, and the control unit provides signals to the power unit and the on-off valve. The on-off valve opens, and the power unit drives the ejection piston to move left at high speed. At this time, the gas in the cold air ejection chamber enters the spiral fan blade to form a high-speed rotating air mass and sprays to the rear of the rear compartment, and then the high-speed rotating air mass explodes;
[0016] 4) The control unit sends a signal to close the on-off valve and the ejection piston quickly moves to the right stop end;
[0017] 5) Repeat steps 2 to 4 until the temperature value measured by the temperature sensor is lower or higher than the set value of the control unit;
[0018] 2. When the temperature value measured by the temperature sensor is higher than the set value of the control unit,
[0019] 1) The control unit sends a signal to the booster pump, and the booster pump starts and stops at a high frequency;
[0020] 2) When the booster pump is started, the high-pressure cold air source enters the air intake chamber through the cold air inlet. The air intake piston moves to the left under the action of the high-pressure cold air, opens the high-pressure air intake port, and lets air into the cold air ejection chamber;
[0021] 3) The control unit controls the booster pump to stop working, the elastic telescopic rod automatically returns to the initial state, the high-pressure air inlet is closed, and the control unit provides signals to the power unit and the on-off valve. The on-off valve opens, and the power unit drives the ejection piston to move left at high speed. At this time, the gas in the cold air ejection chamber enters the spiral fan blade to form a high-speed rotating air mass and sprays to the rear of the rear compartment, and then the high-speed rotating air mass explodes;
[0022] 4) The control unit sends a signal to close the on-off valve and the ejection piston quickly moves to the right stop end;
[0023] 5) Repeat steps 2 to 4 until the temperature value measured by the temperature sensor is equal to or lower than the set value of the control unit;
[0024] 3. When the temperature value measured by the temperature sensor is lower than the set value of the control unit, the cold air explosion device stops working until the temperature value measured by the temperature sensor is equal to or higher than the set value of the control unit.
[0025] Beneficial effect: The present invention realizes comparison between the temperature measured by the temperature sensor and the temperature value of the control unit to complete various working states, thereby greatly saving energy. On the other hand, the explosive cold air delivery is adopted to form a high-speed rotating air mass that is sprayed to the rear end of the rear compartment, and then the high-speed rotating air mass explodes to reach a temperature at the rear end of the rear compartment lower than that at the front end of the rear compartment. Since the front end of the rear compartment has a heat conduction effect with the front compartment, the temperature at the front end of the rear compartment is easier to maintain, and finally the temperature of the entire rear compartment is uniform, the refrigeration effect is good, and energy conservation is more achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Attached Figure 1 It is a schematic diagram of a first embodiment of an explosion-dispersed cold air transport refrigerated truck according to the present invention.
[0027] Attached Figure 2 It is a schematic diagram of a second embodiment of an explosion-dispersed cold air transport refrigerated truck according to the present invention.
[0028] 1. Front compartment; 2. Rear compartment; 3. Air-conditioning ejection chamber; 4. High-pressure air inlet; 5. Air outlet; 6. Ejection piston; 7. Connecting rod; 8. Spiral fan blade; 9. Air inlet chamber; 10. Air inlet piston; 11. Elastic telescopic rod; 12. Air-conditioning inlet; 13. Fixed rod; 14. Temperature sensor; 15. Air inlet pipe; 16. Pneumatic control valve. DETAILED DESCRIPTION
[0029] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.
[0030] Embodiment 1: As shown in Figure 1 As shown, the present invention is an explosive cold air transport refrigerated truck, comprising a front compartment 1, a rear compartment 2 and a control unit, wherein the front side of the rear compartment 2 is provided with a cold air explosive device, wherein the cold air explosive device comprises a cold air ejection chamber 3, a high pressure air inlet 4, an air outlet 5 and an ejection piston 6, wherein the left cavity of the cold air ejection chamber 3 gradually becomes smaller and is sealed and connected with the cylindrical pipe air outlet 5, wherein the right end of the air outlet 5 is provided with an on-off valve, wherein the cold air ejection chamber 3 is provided with an ejection piston 6 adapted thereto, wherein the ejection piston 6 is connected with a connecting rod 7 passing through the right side wall of the cold air ejection chamber 3, wherein the connecting rod 7 is connected with a power device, wherein the power device and the on-off valve are connected with the control unit through a control circuit, wherein when the ejection piston 6 moves to the rightmost state of the cold air ejection chamber 3, the high pressure air inlet 4 is located on the left side of the ejection piston 6, wherein an air intake on-off device is provided outside the high pressure air inlet 4, wherein the air intake on-off device is connected with a high pressure cold air source, and wherein the control circuit of the high pressure cold air source is connected with the control unit. The control unit controls the air intake on-off device to open, so that the high-pressure cold air source enters the cold air ejection chamber 3 through the high-pressure air intake port 4, and then the control unit provides a signal to the power unit and the on-off valve, the on-off valve opens, and at the same time the power unit drives the ejection piston 6 to move left at high speed. At this time, the gas in the cold air ejection chamber 3 enters the air outlet 5 to form an air mass and is ejected toward the rear of the rear compartment 2, so that the temperature of the rear of the rear compartment 2 is lower, the temperature of the entire rear compartment 2 is more balanced, and the refrigeration effect is more obvious.
[0031] The air outlet 5 is fixed with a spiral blade 8 adapted thereto, and the spiral blade 8 is provided with a plurality of continuous spirals. Under the action of the spiral blade 8, the air mass is rotated at a high speed, thereby improving the directionality of the air mass and lengthening the range of the air mass, with greater force and better bursting effect.
[0032] The air intake on-off device includes an air intake chamber 9, an air intake piston 10, an elastic telescopic rod 11 and a cold air inlet 12. The cold air inlet 12 is provided on the right side of the air intake chamber 9. The air intake piston 10 adapted thereto is provided in the air intake chamber 9. The left side of the air intake piston 10 is connected with an elastic telescopic rod 11 passing through the left side wall of the air intake chamber. The other end of the elastic telescopic rod 11 is fixedly mounted on the top of the rear compartment 2 through a fixing rod 13. When the elastic telescopic rod 11 is not subjected to force, the air intake piston 10 is located on the right side of the high-pressure air intake port 4 or covers the top of the high-pressure air intake port 4. The air intake piston 10 moves left and right through the elastic telescopic rod 11 under the action of high-pressure cold air, without the need for other separate power, and is more energy-saving.
[0033] The high-pressure cold air source includes a booster pump, the air inlet of the booster pump is connected to the front compartment 1, and the air outlet of the booster pump is connected to the cold air inlet 12. The booster pump makes the pressure of the high-pressure cold air source higher and exerts a greater force on the intake piston 10.
[0034] A temperature sensor 14 is installed at the top rear end of the rear compartment 2, and the temperature sensor 14 is connected to the control unit through a control circuit. After the temperature sensor 14 is provided, the control unit can continuously obtain the temperature value in the rear compartment 2, and then issue a working state command according to the comparison result between the temperature value and the set temperature value, thereby realizing automation.
[0035] The rear compartment 2 is provided with a plurality of cold air blasting devices, which can be installed according to the size of the compartment and the refrigeration requirements, and are suitable for various work requirements.
[0036] In the control method of the explosion-type cold air transport refrigerated vehicle described in the present invention, when the temperature value measured by the temperature sensor 14 is transmitted to the control unit, the control unit performs the following controls according to the obtained temperature value:
[0037] 1. When the temperature value measured by the temperature sensor 14 is equal to the set value of the control unit,
[0038] 1) The control unit sends a signal to the booster pump, and the booster pump starts and stops at a low frequency;
[0039] 2) When the booster pump is started, the high-pressure cold air source enters the air intake chamber through the cold air inlet 12, and the air intake piston 10 moves to the left under the action of the high-pressure cold air, opens the high-pressure air intake port 4, and takes air into the cold air ejection chamber 3;
[0040] 3) The control unit controls the booster pump to stop working, the elastic telescopic rod 11 automatically returns to the initial state, the high-pressure air inlet 4 is closed, and the control unit provides a signal to the power device and the on-off valve, the on-off valve is opened, and the power device drives the ejection piston 6 to move leftward at a high speed. At this time, the gas in the cold air ejection chamber 3 enters the spiral fan blade 8 to form a high-speed rotating air mass and is ejected to the rear of the rear compartment 2, and then the high-speed rotating air mass explodes;
[0041] 4) The control unit sends a signal to close the on-off valve, and the ejection piston 6 quickly moves to the right stop end;
[0042] 5) Repeat steps 2 to 4 until the temperature value measured by the temperature sensor 14 is lower than or higher than the set value of the control unit;
[0043] 2. When the temperature value measured by the temperature sensor 14 is higher than the set value of the control unit,
[0044] 1) The control unit sends a signal to the booster pump, and the booster pump starts and stops at a high frequency;
[0045] 2) When the booster pump is started, the high-pressure cold air source enters the air intake chamber through the cold air inlet 12, and the air intake piston 10 moves to the left under the action of the high-pressure cold air, opens the high-pressure air intake port 4, and takes air into the cold air ejection chamber 3;
[0046] 3) The control unit controls the booster pump to stop working, the elastic telescopic rod 11 automatically returns to the initial state, the high-pressure air inlet 4 is closed, and the control unit provides a signal to the power device and the on-off valve, the on-off valve is opened, and the power device drives the ejection piston 6 to move leftward at a high speed. At this time, the gas in the cold air ejection chamber 3 enters the spiral fan blade 8 to form a high-speed rotating air mass and sprays to the rear of the rear compartment 2, and then the high-speed rotating air mass explodes;
[0047] 4) The control unit sends a signal to close the on-off valve, and the ejection piston 6 quickly moves to the right stop end;
[0048] 5) Repeat steps 2 to 4 until the temperature value measured by the temperature sensor 14 is equal to or lower than the set value of the control unit;
[0049] 3. When the temperature value measured by the temperature sensor 14 is lower than the set value of the control unit, the cold air explosion device stops working until the temperature value measured by the temperature sensor 14 is equal to or higher than the set value of the control unit.
[0050] Embodiment 2: As shown in FIG2, the present invention is an explosive air-dispersing cold air transport refrigerated vehicle, comprising a front compartment 1, a rear compartment 2 and a control unit, wherein the front side of the rear compartment 2 is provided with a cold air-dispersing device, wherein the cold air-dispersing device comprises a cold air ejection chamber 3, a high-pressure air inlet 4, an air outlet 5 and an ejection piston 6, wherein the left side of the cold air ejection chamber 3 gradually becomes smaller and is sealed and connected to the cylindrical pipe air outlet 5, wherein the right end of the air outlet 5 is provided with an on-off valve, and the cold air ejection chamber 3 is provided with a corresponding The ejection piston 6 is adapted, and the ejection piston 6 is connected with a connecting rod 7 that passes through the right side wall of the cold air ejection chamber 3. The connecting rod 7 is connected to the power device, and the power device and the on-off valve are connected to the control unit through the control circuit. When the ejection piston 6 moves to the rightmost state of the cold air ejection chamber 3, the high-pressure air inlet 4 is located on the left side of the ejection piston 6, and an air intake on-off device is arranged outside the high-pressure air inlet 4. The air intake on-off device is connected to the high-pressure cold air source, and the control circuit of the high-pressure cold air source is connected to the control unit. The control unit controls the air intake on-off device to open, so that the high-pressure cold air source enters the cold air ejection chamber 3 through the high-pressure air inlet 4, and then the control unit provides a signal to the power device and the on-off valve, the on-off valve is opened, and the power device drives the ejection piston 6 to move left at a high speed. At this time, the gas in the cold air ejection chamber 3 enters the air outlet 5 to form an air mass and sprays to the rear of the rear compartment 2, so that the temperature of the rear of the rear compartment 2 is lower, the temperature of the entire rear compartment 2 is more balanced, and the refrigeration effect is more obvious.
[0051] The air outlet 5 is fixed with a spiral blade 8 adapted thereto, and the spiral blade 8 is provided with a plurality of continuous spirals. Under the action of the spiral blade 8, the air mass is rotated at a high speed, thereby improving the directionality of the air mass and lengthening the range of the air mass, with greater force and better bursting effect.
[0052] The air intake on-off device is provided with an air intake pipe 15 and a pneumatic control valve 16. The control pipeline and the main air pipeline of the pneumatic control valve 16 are both connected to the high-pressure cold air source. The pneumatic control valve structure is simpler and can also achieve the purpose.
[0053] The high-pressure cold air source includes a booster pump, the air inlet of the booster pump is connected to the front compartment 1, and the air outlet of the booster pump is connected to the cold air inlet 12. The booster pump makes the pressure of the high-pressure cold air source higher and exerts a greater force on the intake piston 10.
[0054] A temperature sensor 14 is installed at the top rear end of the rear compartment 2, and the temperature sensor 14 is connected to the control unit through a control circuit. After the temperature sensor 14 is provided, the control unit can continuously obtain the temperature value in the rear compartment 2, and then issue a working state command according to the comparison result between the temperature value and the set temperature value, thereby realizing automation.
[0055] The rear compartment 2 is provided with a plurality of cold air blasting devices, which can be installed according to the size of the compartment and the refrigeration requirements, and are suitable for various work requirements.
[0056] In the control method of the explosion-type cold air transport refrigerated vehicle described in the present invention, when the temperature value measured by the temperature sensor 14 is transmitted to the control unit, the control unit performs the following controls according to the obtained temperature value:
[0057] 1. When the temperature value measured by the temperature sensor 14 is equal to the set value of the control unit,
[0058] 1) The control unit sends a signal to the booster pump, and the booster pump starts and stops at a low frequency;
[0059] 2) When the booster pump is started, the high-pressure cold air source opens the pneumatic control valve through the control pipeline of the pneumatic control valve 16, so that the main air pipeline of the pneumatic control valve 16 is opened, and the high-pressure cold air enters the cold air ejection chamber 3;
[0060] 3) The control unit controls the booster pump to stop working, and the pneumatic control valve 16 is closed. At the same time, the control unit provides signals to the power unit and the on-off valve, and the on-off valve is opened. At the same time, the power unit drives the ejection piston 6 to move leftward at high speed. At this time, the gas in the cold air ejection chamber 3 enters the spiral fan blade 8 to form a high-speed rotating air mass and is ejected to the rear of the rear compartment 2, and then the high-speed rotating air mass explodes;
[0061] 4) The control unit sends a signal to close the on-off valve, and the ejection piston 6 quickly moves to the right stop end;
[0062] 5) Repeat steps 2 to 4 until the temperature value measured by the temperature sensor 14 is lower than or higher than the set value of the control unit;
[0063] 2. When the temperature value measured by the temperature sensor 14 is higher than the set value of the control unit,
[0064] 1) The control unit sends a signal to the booster pump, and the booster pump starts and stops at a high frequency;
[0065] 2) When the booster pump is started, the high-pressure cold air source opens the pneumatic control valve through the control pipeline of the pneumatic control valve, so that the main air pipeline of the pneumatic control valve is opened, and the high-pressure cold air enters the cold air ejection chamber 3;
[0066] 3) The control unit controls the booster pump to stop working, the pneumatic control valve is closed, and at the same time the control unit provides a signal to the power unit and the on-off valve, the on-off valve is opened, and at the same time the power unit drives the ejection piston 6 to move leftward at high speed. At this time, the gas in the cold air ejection chamber 3 enters the spiral fan blade 8 to form a high-speed rotating air mass and is ejected to the rear of the rear compartment 2, and then the high-speed rotating air mass explodes;
[0067] 4) The control unit sends a signal to close the on-off valve, and the ejection piston 6 quickly moves to the right stop end;
[0068] 5) Repeat steps 2 to 4 until the temperature value measured by the temperature sensor 14 is equal to or lower than the set value of the control unit;
[0069] 3. When the temperature value measured by the temperature sensor 14 is lower than the set value of the control unit, the cold air explosion device stops working until the temperature value measured by the temperature sensor 14 is equal to or higher than the set value of the control unit.
Claims
1. An explosive air delivery refrigerated truck, comprising a front compartment, a rear compartment and a control unit, characterized in that: The front side of the rear compartment is provided with a cold air explosion device, which includes a cold air ejection chamber, a high-pressure air inlet, an air outlet and an ejection piston. The left cavity of the cold air ejection chamber gradually becomes smaller and is sealed and connected with the cylindrical pipe air outlet. An on-off valve is provided at the right end of the air outlet. An ejection piston adapted thereto is provided in the cold air ejection chamber. The ejection piston is connected with a connecting rod passing through the right side wall of the cold air ejection chamber. The connecting rod is connected to a power device. The power device and the on-off valve are connected to a control unit through a control circuit. When the ejection piston moves to the rightmost state of the cold air ejection chamber, the high-pressure air inlet is located on the left side of the ejection piston. An air intake on-off device is provided on the outside of the air inlet. The air intake on-off device is connected to a high-pressure cold air source. The control circuit of the high-pressure cold air source is connected to the control unit. A spiral fan blade adapted to the air outlet is fixed in the air outlet, and the spiral fan blade is provided with a plurality of continuous spirals; The air intake on-off device comprises an air intake chamber, an air intake piston, an elastic telescopic rod and a cold air inlet. The cold air inlet is arranged on the right side of the air intake chamber, and an air intake piston adapted thereto is arranged in the air intake chamber. The left side of the air intake piston is connected to an elastic telescopic rod passing through the left side wall of the air intake chamber, and the other end of the elastic telescopic rod is fixedly mounted to the top of the rear compartment through a fixing rod. When the elastic telescopic rod is not subjected to force, the air intake piston is located on the right side of the air intake or covers the top of the air intake. The air intake on-off device is provided with an air intake pipe and a pneumatic control valve, and the control pipeline and the main air pipeline of the pneumatic control valve are both connected to the high-pressure cold air source; The high-pressure cold air source includes a booster pump, the air inlet end of the booster pump is connected to the front compartment, and the air outlet end of the booster pump is connected to the cold air inlet; A temperature sensor is installed at the top rear end of the rear compartment, and the temperature sensor is connected to the control unit through a control circuit; The rear compartment is provided with a plurality of cold air blasting devices.
2. A control method for a refrigerated truck using an explosive air delivery method according to claim 1, characterized in that: The temperature value measured by the temperature sensor is transmitted to the control unit, and the control unit performs the following controls based on the obtained temperature value:
1. When the temperature value measured by the temperature sensor is equal to the set value of the control unit, 1) The control unit sends a signal to the booster pump, and the booster pump starts and stops at a low frequency; 2) When the booster pump is started, the high-pressure cold air source enters the air intake chamber through the cold air inlet. The air intake piston moves to the left under the action of the high-pressure cold air, opens the high-pressure air intake port, and lets air into the cold air ejection chamber; 3) The control unit controls the booster pump to stop working, the elastic telescopic rod automatically returns to the initial state, the high-pressure air inlet is closed, and the control unit provides signals to the power unit and the on-off valve. The on-off valve opens, and the power unit drives the ejection piston to move left at high speed. At this time, the gas in the cold air ejection chamber enters the spiral fan blade to form a high-speed rotating air mass and sprays to the rear of the rear compartment, and then the high-speed rotating air mass explodes; 4) The control unit sends a signal to close the on-off valve and the ejection piston quickly moves to the right stop end; 5) Repeat steps 2 to 4 until the temperature value measured by the temperature sensor is lower or higher than the set value of the control unit; 2. When the temperature value measured by the temperature sensor is higher than the set value of the control unit, 1) The control unit sends a signal to the booster pump, and the booster pump starts and stops at a high frequency; 2) When the booster pump is started, the high-pressure cold air source enters the air intake chamber through the cold air inlet. The air intake piston moves to the left under the action of the high-pressure cold air, opens the high-pressure air intake port, and lets air into the cold air ejection chamber; 3) The control unit controls the booster pump to stop working, the elastic telescopic rod automatically returns to the initial state, the high-pressure air inlet is closed, and the control unit provides signals to the power unit and the on-off valve. The on-off valve opens, and the power unit drives the ejection piston to move left at high speed. At this time, the gas in the cold air ejection chamber enters the spiral fan blade to form a high-speed rotating air mass and sprays to the rear of the rear compartment, and then the high-speed rotating air mass explodes; 4) The control unit sends a signal to close the on-off valve and the ejection piston quickly moves to the right stop end; 5) Repeat steps 2 to 4 until the temperature value measured by the temperature sensor is equal to or lower than the set value of the control unit; 3. When the temperature value measured by the temperature sensor is lower than the set value of the control unit, the cold air explosion device stops working until the temperature value measured by the temperature sensor is equal to or higher than the set value of the control unit.
Citation Information
Patent Citations
It carries refrigerator car to explode formula air conditioning that looses
CN206797229U