CN218197828U - Temperature control system of cold-chain logistics vehicle - Google Patents
Temperature control system of cold-chain logistics vehicle Download PDFInfo
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- CN218197828U CN218197828U CN202222654009.7U CN202222654009U CN218197828U CN 218197828 U CN218197828 U CN 218197828U CN 202222654009 U CN202222654009 U CN 202222654009U CN 218197828 U CN218197828 U CN 218197828U
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Abstract
The utility model discloses a cold chain logistics car temperature control system, including the railway carriage, be equipped with refrigeration room (1) and a plurality of temperature control unit (2) in the railway carriage respectively, be equipped with refrigerator and first temperature sensor (4) in refrigeration room (1) respectively, all be connected with the air-supply line in every temperature control unit (2) and go out the tuber pipe, the air-supply line with go out the outside of tuber pipe and connect temperature control unit (2) through refrigeration fan (7), be equipped with air door (8) on the air-supply line, all be equipped with second temperature sensor (9) in every temperature control unit (2). The utility model discloses can realize the independent temperature control to different control by temperature change units, have the characteristics that the control by temperature change is with low costs, functional good.
Description
Technical Field
The utility model relates to a commodity circulation car temperature control system, especially a cold chain commodity circulation car temperature control system.
Background
At present, the refrigeration mode of a cold-chain logistics vehicle is generally a single greenhouse, and only substances in the same temperature environment can be stored, but cannot be mixed. If a plurality of refrigerating areas with different temperatures are formed in the carriage, corresponding refrigerating equipment is required to be arranged according to the number of the refrigerating areas, so that the temperature control cost of the cold-chain logistics vehicle is increased, and the functionality of the cold-chain logistics vehicle is reduced. On the other hand, when the cold-chain logistics vehicle temporarily stops, in order to realize the refrigeration and temperature control effects on the substances in the refrigeration area; this commodity circulation car still needs intermittent type nature to open the engine and start refrigeration plant and keep warm to the refrigeration district to increased the temporary stopping degree of difficulty of cold chain commodity circulation car and caused the waste of the energy.
In addition, because refrigeration plant and connection structure thereof need adorn surely when cold chain logistics car production, or install additional by professional producer in the later stage for the quantity in refrigeration district and the volume in every refrigeration district are the fixed value, can't adjust as required temporarily. Therefore, the functionality of the refrigerating system is further reduced, and the refrigerating environment of the cold-chain logistics vehicle cannot be changed according to the demand of carrying goods; the cold-chain logistics vehicle is often carried under the condition that one part of the refrigerating area is insufficient and the other part of the refrigerating area is remained.
Therefore, the existing cold-chain logistics vehicle has the defects of high temperature control cost and poor functionality.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cold chain logistics car temperature control system. The temperature control device has the characteristics of low temperature control cost and good functionality.
The technical scheme of the utility model: the utility model provides a cold chain commodity circulation car temperature control system, includes the railway carriage, is equipped with refrigeration room and a plurality of temperature control unit in the railway carriage respectively, is equipped with refrigerator and first temperature sensor in the refrigeration room respectively, all is connected with the air-supply line in every temperature control unit and goes out the tuber pipe, and the outside of air-supply line and play tuber pipe is connected the temperature control unit through the refrigeration fan, is equipped with the air door on the air-supply line, all is equipped with second temperature sensor in every temperature control unit.
In the aforementioned temperature control system for cold-chain logistics vehicles, the air door is an electric air door, and the controller is connected to the outside of the air door, the outside of the second temperature sensor and the outside of the refrigeration fan.
In the temperature control system of the cold-chain logistics vehicle, when the temperature control system is opened in a driving state, and any one or more air doors are opened, the cooling air in the cooling chamber is sent into the temperature control unit through the air doors by the cooling fan for circulating cooling; when each damper is closed, the cooling fan is closed.
In the aforementioned temperature control system for a cold-chain logistics vehicle, when the temperature control system is turned on in a stopped state, the cooling air in the cooling chamber is continuously sent to the temperature control unit by the cooling fan for cooling.
In the temperature control system for the cold-chain logistics vehicle, the control temperature of the air door is set to be X, the control reference value is set to be n, and the temperature of the temperature control unit detected by the second temperature sensor is set to be Y; when Y = X-n, the damper is closed; when Y = X + n, the damper is opened.
In the aforementioned temperature control system for a cold-chain logistics vehicle, adjacent temperature control units are separated from each other by a movable partition plate.
In the temperature control system of the cold-chain logistics vehicle, the refrigeration temperatures of different temperature control units are the same or different, the temperature control units with the same temperature are communicated with each other through the movable partition plate to form the refrigeration areas, and the refrigeration areas with different temperatures are separated from each other through the movable partition plate.
In the temperature control system of the cold-chain logistics vehicle, an alarm is connected to the outside of the second temperature sensor.
Compared with the prior art, the utility model has the characteristics of it is following:
(1) The utility model enables the refrigerator to refrigerate the air in the refrigerating chamber and form corresponding cooling gas through the matching of the refrigerating chamber, the refrigerator and the refrigerating fan, and then the cooling gas is sent into each temperature control unit by the refrigerating fan to realize refrigeration; through the matching of the air door and the second temperature sensor, the second temperature sensor can open the corresponding air door and realize the air supply of the refrigerating fan when detecting that the temperature of the temperature control unit is higher than a set value, so that each temperature control unit can be independently controlled to realize refrigeration, corresponding refrigerators do not need to be arranged according to the number of the temperature control units, and the temperature control cost of the temperature control units with different temperatures is reduced;
(2) On the basis, the utility model further limits the open-close condition of the air door, so that when the temperature in the temperature control unit reaches the threshold value, the air door can be automatically opened and the refrigeration function is realized; when the temperature in the temperature control unit is reduced to a specified value, the air door can be automatically closed and drive the refrigeration fan to stop, so that the working stability of the utility model is improved;
(3) When the cold-chain logistics vehicle is in a driving state, the cold air can be stored through the refrigerating chamber, and when the cold-chain logistics vehicle is in a stopping state, the temperature control time of the cooling fan on each temperature control unit can be prolonged through the cold air stored in the refrigerating chamber, so that the temperature control effect of the utility model is improved;
(4) Different temperature control units are connected with each other through a movable partition plate, so that a processor can separate or communicate the temperature control units with each other according to needs, refrigeration areas with uniform temperature can be formed after the temperature control units are communicated with each other, and the volume of the refrigeration areas can be adjusted; meanwhile, the refrigeration areas with different temperatures can be mutually separated to realize independent control, so that the functionality of the utility model is improved;
(5) The alarm is connected with the outside of the second temperature sensor, so that when the temperature in the temperature control unit reaches an alarm value, early warning can be performed through the alarm, and the stability of the temperature control device is further improved;
therefore, the utility model has the characteristics of the control by temperature change is with low costs, functional good.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an electrical schematic diagram of the present invention.
The labels in the figures are: the method comprises the following steps of 1-a refrigerating chamber, 2-a temperature control unit, 3-a movable partition plate, 4-a first temperature sensor, 5-a refrigerating area, 6-an alarm, 7-a refrigerating fan, 8-an air door and 9-a second temperature sensor.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Example 1. A temperature control system of a cold-chain logistics vehicle is formed as shown in figure 1 and comprises an LNG refrigerated vehicle carriage, wherein a refrigeration chamber 1 and a plurality of temperature control units 2 are respectively arranged in the carriage, a refrigerator and a first temperature sensor 4 are respectively arranged in the refrigeration chamber 1, and when the first temperature sensor 4 detects that the temperature in the refrigeration chamber 1 is higher than a set value, the refrigerator is started to refrigerate; an air inlet pipe and an air outlet pipe are connected in each temperature control unit 2, the outsides of the air inlet pipe and the air outlet pipe are connected with the temperature control units 2 through a refrigerating fan 7, an air door 8 is arranged on the air inlet pipe, and a second temperature sensor 9 is arranged in each temperature control unit 2.
The refrigerator can select a cold accumulation type evaporator, the cold accumulation type evaporator comprises a first tube shell wrapped outside the LNG vaporizer and a second tube shell wrapped outside the first tube shell, a refrigerating chamber 1 is formed between the first tube shell and the second tube shell, a gap between the first tube shell and the LNG vaporizer is filled with liquid cold accumulation agent, and the outside of the second tube shell is respectively connected with an air inlet pipe and an air outlet pipe; the LNG refrigerator car can vaporize the liquefied natural gas and provide power as fuel in the operation process, and when the liquefied natural gas is vaporized in the LNG vaporizer, the LNG refrigerator car can release cold energy, so that the liquefied cold storage agent on the outer side is utilized to exchange heat for the liquefied natural gas and store the cold energy. After the liquid cold storage agent stores cold energy, the refrigerating fan 7 sends the air in the temperature control unit 2 into the refrigerating chamber 1 to exchange heat with the liquid cold storage agent, and sends the cold air after heat exchange into the temperature control unit 2 again through the air outlet pipe, thereby realizing the circulating refrigeration function of the air.
The air door 8 is an electric air door, the air door 8, the second temperature sensor 9 and the refrigerating fan 7 are all connected with a controller, the controller is a programmable controller, and all parts are controlled to be opened and closed according to program setting by the controller during use.
When the temperature control system is opened in a running state (when an engine works), when any one or more air doors 8 are opened, the refrigerating fan 7 sends cold air in the refrigerating chamber 1 into the temperature control unit 2 through the air doors 8 for circulating refrigeration; when each damper 8 is closed, the cooling fan 7 is closed.
When the vehicle is stopped (the engine is turned off) and the temperature control system is turned on, the low-speed state is turned on by the refrigerating fan 7 and the cold air in the refrigerating chamber 1 is continuously sent to the temperature control unit 2 for refrigeration.
When the LNG refrigerator is in an unloaded state and no goods are placed, the temperature control system is closed and all the components are in a closed state.
Setting the control temperature of the air door 8 as X, wherein the control temperature is the set temperature of the temperature control unit; the control reference value is n, and the control reference value refers to the temperature difference value of the temperature control unit within the acceptable range; the temperature of the temperature control unit detected by the second temperature sensor 9 is Y; when Y = X-n, the damper 8 is closed; when Y = X + n, the damper 8 is opened.
The adjacent temperature control units 2 are mutually separated by a movable partition plate 3, and the movable partition plate 3 can be an electric sliding rail door.
The refrigeration temperatures of different temperature control units 2 are the same or different, the temperature control units 2 with the same temperature are located at adjacent positions during planning, the temperature control units 2 with the same temperature are mutually communicated through movable partition plates 3 to form refrigeration areas 5, and the refrigeration areas 5 with different temperatures are mutually separated through the movable partition plates 3.
And an alarm 6 is connected to the outside of the second temperature sensor 9, and when the temperature in the temperature control unit 2 detected by the second temperature sensor 9 is higher than a set value, the alarm 6 gives a high-temperature alarm to personnel in the cab.
The utility model discloses a theory of operation: the utility model discloses a cold-storage function is realized in the cooperation of refrigerator and refrigeration room 1 for in refrigerating fan 7 can send into temperature control unit 2 with the air conditioning in the refrigeration room 1 through air door 8 when the 2 temperature of temperature control unit reaches the upper threshold value, send into refrigeration room 1 by the air that goes out the tuber pipe in with temperature control unit 2 simultaneously. Under the cooperation, make the utility model discloses can control by temperature change to each temperature control unit 2 respectively under automobile engine operating condition, guarantee that different temperature control units 2 all reach stable temperature range. When the engine is closed, the refrigerating fan 7 can exchange heat for each temperature control unit 2 at the same time under the low-speed condition, so that the temperature control time for the temperature control units 2 is prolonged, and the temperature control units 2 can be continuously in the temperature range in the closing state of the refrigerator.
Through separating each temperature control unit 2 from each other through movable partition plate 3 for cold chain logistics car can also communicate a plurality of temperature control units 2 each other according to the volume of refrigeration district 5, thereby forms refrigeration district 5 after making a plurality of temperature control units 2 communicate each other, thereby realizes improving 5 volumetric adjustments in refrigeration district the utility model discloses a functionality.
Example 2. A temperature control system of a cold-chain logistics vehicle is shown in figure 1 and comprises a vehicle box, wherein a refrigeration chamber 1 and four temperature control units 2 are respectively arranged in the vehicle box, the four temperature control units 2 are sequentially connected, and movable partition plates 3 are arranged at the joints, wherein the movable partition plates 3 between the two temperature control units 2 are in an open state, so that the temperature control units 2 form a refrigeration area after being communicated, the movable partition plates 3 between the other two temperature control units 2 are in an open state, so that the temperature control units 2 form a cold storage area after being communicated, the movable partition plates 3 between the refrigeration area and the cold storage area are in a closed state, so that the refrigeration area and the cold storage area are mutually separated, the set temperature of the refrigeration area is-18 ℃, and the set temperature of the cold storage area is 3 ℃;
a refrigerator and a first temperature sensor 4 are respectively arranged in the refrigeration chamber 1, and when the first temperature sensor 4 detects that the temperature in the refrigeration chamber 1 is higher than a set value, the refrigerator is started to refrigerate; an air inlet pipe and an air outlet pipe are connected in each temperature control unit 2, the outsides of the air inlet pipe and the air outlet pipe are connected with the temperature control units 2 through a refrigerating fan 7, an air door 8 is arranged on the air inlet pipe, and a second temperature sensor 9 is arranged in each temperature control unit 2.
The air door 8 is an electric air door, the controller is connected to the outer portions of the air door 8, the second temperature sensor 9 and the refrigerating fan 7 and is a programmable controller, and when the air door is used, the controller controls all parts to be opened and closed according to program setting.
When the temperature control system is opened in a running state (when an engine works), when any one or more air doors 8 are opened, the refrigerating fan 7 sends cold air in the refrigerating chamber 1 into the temperature control unit 2 through the air doors 8 for circulating refrigeration; when each damper 8 is closed, the cooling fan 7 is closed.
When the vehicle is stopped (the engine is turned off) and the temperature control system is turned on, the low-speed state is turned on by the refrigerating fan 7 and the cold air in the refrigerating chamber 1 is continuously sent to the temperature control unit 2 for refrigeration.
The temperature of the air door 8 of the freezing area is controlled to be-18 ℃, and the reference value is controlled to be 2 ℃; when the temperature of the temperature control unit detected by the second temperature sensor 9 is-16 ℃, at the moment, 16 ℃ below zero is-18 ℃ plus 2 ℃, the air door 8 is opened; when the temperature of the temperature control unit detected by the second temperature sensor 9 is-20 ℃, at the moment, the temperature of-20 ℃ is not larger than-18 ℃ and 2 ℃, and the air door 8 is closed; when any one of the second temperature sensors 9 in the freezing zone detects that the temperature reaches a threshold value, the corresponding damper 8 is controlled by the second temperature sensor 9 to open and close.
The temperature of the air door 8 of the cold storage area is controlled to be 3 ℃, and the control reference value is 2 ℃; when the temperature of the temperature control unit detected by the second temperature sensor 9 is 5 ℃, at this time, 5 ℃ =3 ℃ +2 ℃, the air door 8 is opened; when the temperature of the temperature control unit detected by the second temperature sensor 9 is 1 ℃, at this time, 1 ℃=3 ℃ -2 ℃, and the air door 8 is closed; when any one of the second temperature sensors 9 in the cold storage area detects that the temperature reaches the threshold value, the corresponding damper 8 is controlled by the second temperature sensor 9 to open and close.
And an alarm is connected to the outside of the second temperature sensor 9, and when the temperature in the temperature control unit 2 detected by the second temperature sensor 9 is higher than a set value, the alarm gives a high-temperature alarm to personnel in the cab.
The number and the communication state of the temperature control units 2 are further adjusted in the embodiment, so that the first three temperature control units 2 can be communicated with each other to form a freezing area, the last three temperature control units 2 are communicated with each other to form a refrigerating area, the temperature range of the freezing area can be in the range of-16 to-20 ℃ by utilizing the cooperation of the refrigerating chamber 1 and the refrigerating fan 7, and the temperature range of the refrigerating area can be in the range of 1 to 5 ℃. And realize the zone temperature control between the freezing zone and the cold storage zone.
Example 3. A temperature control system of a cold-chain logistics vehicle is shown in figure 1 and comprises a vehicle box, wherein a refrigeration chamber 1 and four temperature control units 2 are respectively arranged in the vehicle box, the four temperature control units 2 are sequentially connected, movable partition plates 3 are arranged at the joints, and the movable partition plates 3 are all in an open state, so that the temperature control units 2 are sequentially communicated to form a cold storage area, and the set temperature of the cold storage area is 3 ℃;
a refrigerator and a first temperature sensor 4 are respectively arranged in the refrigeration chamber 1, and when the first temperature sensor 4 detects that the temperature in the refrigeration chamber 1 is higher than a set value, the refrigerator is started to refrigerate; an air inlet pipe and an air outlet pipe are connected in each temperature control unit 2, the outer parts of the air inlet pipe and the air outlet pipe are connected with the temperature control units 2 through a refrigerating fan 7, an air door 8 is arranged on the air inlet pipe, and a second temperature sensor 9 is arranged in each temperature control unit 2.
The air door 8 is an electric air door, the air door 8, the second temperature sensor 9 and the refrigerating fan 7 are all connected with a controller, the controller is a programmable controller, and all parts are controlled to be opened and closed according to program setting by the controller during use.
When any one or more air doors 8 are opened under a driving state (the engine works) and the temperature control system is opened, cold air in the refrigerating chamber 1 is sent into the temperature control unit 2 through the air doors 8 by the refrigerating fan 7 for circulating refrigeration; when each damper 8 is closed, the cooling fan 7 is closed.
When the vehicle is stopped (the engine is turned off) and the temperature control system is turned on, the low-speed state is turned on by the refrigerating fan 7 and the cold air in the refrigerating chamber 1 is continuously sent to the temperature control unit 2 for refrigeration.
The temperature of the air door 8 of the cold storage area is controlled to be 3 ℃, and the control reference value is 2 ℃; when the temperature of the temperature control unit detected by the second temperature sensor 9 is 5 ℃, at this time, 5 ℃ =3 ℃ +2 ℃, the air door 8 is opened; when the temperature of the temperature control unit detected by the second temperature sensor 9 is 1 ℃, at this time, 1 ℃=3 ℃ -2 ℃, and the air door 8 is closed; when any one of the second temperature sensors 9 in the cold storage area detects that the temperature reaches the threshold value, the corresponding damper 8 is controlled by the second temperature sensor 9 to open and close.
And an alarm is connected to the outside of the second temperature sensor 9, and when the temperature in the temperature control unit 2 detected by the second temperature sensor 9 is higher than a set value, the alarm gives a high-temperature alarm to personnel in the cab.
This embodiment is through communicateing movable partition 3 each other for each temperature control unit 2 can communicate each other and realize the cold-stored effect entirely. Through the cooperation of the second temperature sensors 9 and the air doors 8 arranged on different temperature control units 2, the temperature detection and the temperature control can be respectively carried out on different areas in the refrigeration area, so that the temperature control precision of the refrigeration area is improved, and the temperature of the refrigeration area is kept within the range of 1-5 ℃.
Claims (8)
1. The utility model provides a cold chain logistics car temperature control system which characterized in that: including the railway carriage, be equipped with refrigeration room (1) and a plurality of temperature control unit (2) respectively in the railway carriage, be equipped with refrigerator and first temperature sensor (4) respectively in refrigeration room (1), all be connected with the air-supply line in every temperature control unit (2) and go out the tuber pipe, temperature control unit (2) are connected through refrigeration fan (7) to the outside of air-supply line and play tuber pipe, are equipped with air door (8) on the air-supply line, all are equipped with second temperature sensor (9) in every temperature control unit (2).
2. The temperature control system of the cold-chain logistics vehicle of claim 1, characterized in that: the air door (8) is an electric air door, and the air door (8), the second temperature sensor (9) and the refrigeration fan (7) are all connected with a controller.
3. The temperature control system of the cold-chain logistics vehicle of claim 2, characterized in that: when the temperature control system is started in a driving state, when any one or more air doors (8) are opened, the refrigerating fan (7) sends cold air in the refrigerating chamber (1) into the temperature control unit (2) through the air doors (8) for circulating refrigeration; when each damper (8) is closed, the cooling fan (7) is closed.
4. The temperature control system of the cold-chain logistics vehicle of claim 2, characterized in that: when the temperature control system is started in a stopped state, the refrigerating fan (7) continuously sends cold air in the refrigerating chamber (1) into the temperature control unit (2) for refrigeration.
5. The temperature control system of the cold-chain logistics vehicle of claim 2, wherein: setting the control temperature of the air door (8) as X, the control reference value as n and the temperature of the temperature control unit detected by the second temperature sensor (9) as Y; when Y = X-n, the damper (8) is closed; when Y = X + n, the damper (8) is opened.
6. The temperature control system of the cold-chain logistics vehicle of claim 1, wherein: the adjacent temperature control units (2) are mutually separated by a movable partition plate (3).
7. The temperature control system of the cold-chain logistics vehicle of claim 6, characterized in that: the refrigeration temperatures of different temperature control units (2) are the same or different, the temperature control units (2) with the same temperature are mutually communicated through movable partition plates (3) to form refrigeration areas (5), and the refrigeration areas (5) with different temperatures are mutually separated through the movable partition plates (3).
8. The temperature control system of the cold-chain logistics vehicle of claim 1, characterized in that: and an alarm (6) is connected to the outside of the second temperature sensor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222654009.7U CN218197828U (en) | 2022-10-08 | 2022-10-08 | Temperature control system of cold-chain logistics vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222654009.7U CN218197828U (en) | 2022-10-08 | 2022-10-08 | Temperature control system of cold-chain logistics vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN218197828U true CN218197828U (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222654009.7U Active CN218197828U (en) | 2022-10-08 | 2022-10-08 | Temperature control system of cold-chain logistics vehicle |
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| CN (1) | CN218197828U (en) |
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2022
- 2022-10-08 CN CN202222654009.7U patent/CN218197828U/en active Active
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