CN202947362U - Absorption refrigerating machine for automobile engine waste-heat utilization - Google Patents

Abstract

The utility model belongs to the technical field of refrigeration and meets the requirements of simple structure and compact volume. An adsorption refrigerator for utilization of waste heat from an automobile engine is composed of an adsorption refrigerator, a heat source system, a cooling system, a refrigeration circuit, and a PLC controller. The refrigerator is correspondingly connected into a circuit; the cooling system includes a water storage tank, and the water storage tank is correspondingly connected into a circuit through the second solenoid valve group, the first water pump group and the adsorption refrigerator; The third solenoid valve group, the second water pump group and the adsorption refrigerator are correspondingly connected to form a circuit; the first solenoid valve group, the second solenoid valve group, and the third solenoid valve group are respectively electrically connected to the PLC controller. The utility model utilizes the waste heat of the automobile engine to provide cooling capacity to the driver's cab, reduces the fuel consumption due to cooling, and has obvious energy-saving effect.

Description

An adsorption refrigerating machine for utilizing waste heat of automobile engine

technical field

The utility model belongs to the technical field of refrigeration, in particular to an adsorption refrigerator for utilizing waste heat of an automobile engine. the

Background technique

As of 2009, there are about 70 million cars in the country, and the total amount is still growing at a relatively high rate. The fuel consumption of automobile air conditioners accounts for about 10% of the engine energy consumption, especially in southern China, where air conditioners are used for a long time, and the energy consumption of automobile air conditioners is very obvious. At the same time, the engine can generate a large amount of waste heat. The heat taken away by the cooling water of the automobile engine accounts for about a quarter of the total heat of combustion, and the outlet temperature is about 85°C. At present, it is basically not used effectively. Adsorption refrigerators can use low-grade heat sources for refrigeration without consuming electric energy, and have energy-saving effects. Compared with compression refrigeration, adsorption refrigeration is driven by the waste heat of cooling water in automobile engines, which does not increase fuel consumption or reduce vehicle power. It is more suitable for application in automobile air conditioners; at the same time, it has no leakage and no noise, and also reduces the damage to the environment, which is in line with the development trend of green and environmental protection of automobile air conditioners. the

The Chinese patent application number is 200810048718.2, and the invention name is the truck exhaust adsorption refrigeration cab air conditioner. On January 7, 2009, a truck exhaust adsorption refrigeration cab air conditioner was disclosed, including a generator, a condenser, and a liquid storage. Ammonia is used as the refrigerant, and the ammonia refrigeration cycle is used to drive the ammonia cooler to cool down the truck cab. However, the use of ammonia as a refrigerant is harmful to a certain extent, and the structure is relatively complex and the volume is large, which has certain limitations for application in vehicle air conditioners. Due to the size of the vehicle, the vehicle refrigerator must have the characteristics of small size and compact structure. Possibility of application. However, adsorption refrigerators generally have the characteristics of low cooling efficiency and large volume, which limit the application of adsorption refrigerators in automobiles. Therefore, an adsorption refrigerator with a simple structure and a compact volume is required to meet the requirements of a vehicle-mounted refrigerator. the

Contents of the invention

The utility model provides an adsorption refrigerating machine for utilizing waste heat of an automobile engine, which meets the requirements of energy saving, environmental protection, compact structure and small volume. the

In order to achieve the above object, the utility model takes the following technical solutions:

An adsorption refrigerating machine for utilizing the waste heat of an automobile engine, which is composed of an adsorption refrigerating machine, a heat source system, a cooling system, a refrigeration circuit and a PLC controller. The cooling system includes a water storage tank, and the water storage tank is connected to the adsorption refrigerator through the second solenoid valve group and the first water pump group to form a circuit; the refrigeration circuit includes the cab indoor air conditioner, and the cab indoor air conditioner A part is connected to the adsorption refrigerator through the third solenoid valve group and the second water pump group to form a circuit; the first solenoid valve group, the second solenoid valve group and the third solenoid valve group are respectively electrically connected to the PLC controller. the

The above-mentioned adsorption refrigerator is divided into four chambers by a partition, and the left adsorber, the right adsorber, the condenser and the evaporator are respectively placed in it, and each chamber is connected by a steam valve installed on the partition, in which the condensing The chambers where the evaporator and the evaporator are located are communicated through refrigerant pipes, and the refrigerant is water. the

The above-mentioned first solenoid valve group includes valve 1, valve 2, valve 3 and valve 4. The engine cooling water is respectively connected to the left absorber and the right absorber through valve 1 and valve 3 respectively, and the engine cooling water also passes through valve 2 and valve 4 respectively. Four are respectively connected with the left adsorber and the right adsorber, and the engine cooling water respectively forms a loop with the left adsorber and the right adsorber; the second solenoid valve group includes valve five, valve six, valve seven, valve eight and valve nine, The first water pump group includes water pump 1 and water pump 2. The water storage tank is connected with the left absorber and the right absorber respectively through the water pump 2 through the valve 5 and the valve 7 respectively. The right adsorber is connected, and the water storage tank is respectively connected with the condenser through the water pump 1 and the valve 9. The water storage tank forms a circuit with the left adsorber, the right adsorber and between the water storage tank and the condenser respectively; the third solenoid valve group includes Valve ten, the second water pump group includes water pump three, the air-conditioning part in the cab is connected with the evaporator through valve ten and water pump three respectively, and a circuit is formed between the air-conditioning part in the cab and the evaporator. A fan is also installed on the water storage tank for cooling the water storage tank. the

Compared with the prior art, the utility model has the following advantages:

(1) The cooling water of the automobile engine is directly passed into the adsorber of the adsorption refrigerator for heat exchange, which effectively improves the heat transfer efficiency;

(2) The adsorption refrigerator adopted is simple in structure and compact in size, which meets the volume requirements for vehicle-mounted refrigerators;

(3) The waste heat of the automobile engine is used for refrigeration, which reduces the amount of fuel consumed by refrigeration and has the effect of saving energy. At the same time, it also makes full use of the waste heat of the automobile engine to improve energy utilization. the

Description of drawings

Fig. 1 is the refrigeration system figure of embodiment;

Fig. 2 is a schematic structural diagram of the adsorption refrigerator in Fig. 1 . the

Explanation of reference signs: 1-adsorption refrigerator; 11-right adsorber; 12-left adsorber; 13-evaporator; 14-condenser; 15-steam valve; 17-refrigerant pipeline; 20-valve ten; 21-valve one; 22-valve two; 23-valve three, 24-valve four; 25-valve five; 26-valve six; 27-valve seven; 28-valve eight; 29-valve nine; 31-water storage tank; 41-fan; 51-water pump 1; 52-water pump 2; 53-water pump 3; 61-cab air conditioning part; 71-engine cooling water; 8-PLC controller. the

Detailed ways

Below in conjunction with accompanying drawing and embodiment the content of the utility model is further described. the

As shown in Figures 1 and 2, this embodiment consists of an adsorption refrigerator 1, a heat source system, a cooling system, a refrigeration circuit, and a PLC controller 8. The adsorption refrigerator 1 is divided into four chambers by partitions, and the left adsorber 12. The right adsorber 11, condenser 14 and evaporator 13 are respectively placed in it, and each chamber is connected by a steam valve 15 installed on a partition, wherein the chamber where the condenser 14 and the evaporator 13 are located passes through a refrigerant pipeline 17 is connected, and the refrigerant is water. The heat source system includes engine cooling water 71, and the engine cooling water 71 is correspondingly connected to the adsorption refrigerator 1 through the first solenoid valve group to form a circuit: the first solenoid valve group includes valve one 21, valve two 22, valve three 23 and valve four 24 , the engine cooling water 71 communicates with the left adsorber 12 and the right adsorber 11 through the valve one 21 and the valve three 23 respectively, and the engine cooling water 71 is also respectively connected with the left adsorber 12 and the right adsorber through the valve two 22 and the valve four 24 The engine cooling water 71 forms a circuit with the left adsorber 12 and the right adsorber 11 respectively; the cooling system includes a water storage tank 31, and the water storage tank 31 passes through the second electromagnetic valve group, the first water pump group and the adsorption refrigerator. Correspondingly connected into a circuit: the second electromagnetic valve group includes valve five 25, valve six 26, valve seven 27, valve eight 28 and valve nine 29, the first water pump group includes water pump one 51 and water pump two 52, and the water storage tank 31 passes through water pump two 52 respectively communicates with the left adsorber 12 and the right adsorber 11 through valve five 25 and valve seven 27 respectively, and the water storage tank 31 also communicates with the left adsorber 12 and the right adsorber 11 respectively through valve six 26 and valve eight 28 respectively, and the storage Water tank 31 communicates with condenser 14 through water pump one 51 and valve nine 29 respectively, and water storage tank 31 forms a circuit with left adsorber 12, right adsorber 11 and between water storage tank 31 and condenser 14 respectively; refrigeration circuit includes The cab indoor air-conditioning part 61, the cab indoor air-conditioning part 61 is correspondingly connected to the adsorption refrigerator 1 through the third solenoid valve group and the second water pump group to form a circuit: the third solenoid valve group includes valve ten 20, and the second water pump group includes The water pump three 53 and the cab indoor air-conditioning part 61 communicate with the evaporator 13 through the valve ten 20 and the water pump three 53 respectively, and a circuit is formed between the cab indoor air-conditioning part 61 and the evaporator 13 . The first solenoid valve group, the second solenoid valve group and the third solenoid valve group are electrically connected to the PLC controller 8 respectively. A fan 41 is also installed on the water storage tank 31 for cooling the water storage tank 31 . The working principle of the utility model is that PLC controller 8 controls the opening and closing of the first solenoid valve group, the second solenoid valve group and the third solenoid valve group, and under the action of the first water pump group and the second water pump group, through The circuit between the engine cooling water 71 and the left adsorber 12 and the right adsorber 11 and the circuit between the water storage tank 31 and the left adsorber 12, the right adsorber 11 and the condenser 14 realize alternate heating and cooling of the left adsorber 12 and the right Adsorber 11 process, thus completes the continuous cooling process, and through the circuit between evaporator 13 and cab indoor air-conditioning part 61 to realize the effect of utilizing the waste heat of automobile engine to input cooling capacity for cab. the

Obviously, the above-mentioned specific implementation manners of the present utility model are only examples for clearly illustrating the utility model, but not limitations to the implementation manners of the present utility model. For those skilled in the art, on the basis of the above description Other changes or substitutions can be easily made, and these changes or substitutions will also be included in the protection scope of the utility model. the

Claims (4)

1. An adsorption refrigerator for utilization of waste heat from an automobile engine, consisting of an adsorption refrigerator (1), a heat source system, a cooling system, a refrigeration circuit and a PLC controller (8), characterized in that: the heat source system includes an engine Cooling water (71), the engine cooling water (71) is connected to the adsorption refrigerator (1) through the first solenoid valve group to form a circuit; the cooling system includes a water storage tank (31), and the water storage tank (31) passes through the second The solenoid valve group, the first water pump group and the adsorption refrigerator (1) are correspondingly connected to form a circuit; the refrigeration circuit includes the cab indoor air-conditioning part (61), and the cab indoor air-conditioning part (61) passes through the third solenoid valve group, The second water pump group is correspondingly connected to the adsorption refrigerator (1) to form a circuit; the first solenoid valve group, the second solenoid valve group, and the third solenoid valve group are respectively electrically connected to the PLC controller (8). the 2. The adsorption refrigerator for utilization of automobile engine waste heat according to claim 1, characterized in that: the adsorption refrigerator (1) is divided into four chambers by partitions, the left adsorber (12), the right adsorber The condenser (11), condenser (14) and evaporator (13) are respectively placed in it, and each chamber is connected by a steam valve (15) installed on the partition, wherein the condenser (14) and the evaporator ( 13) The chamber where it is located is connected through the refrigerant pipeline (17), and the refrigerant is water. the 3. The adsorption refrigerator for utilization of automobile engine waste heat according to claim 2, characterized in that: the first electromagnetic valve group includes valve one (21), valve two (22), valve three (23), valve Four (24), the engine cooling water (71) respectively communicates with the left absorber (12) and the right absorber (11) through valve one (21) and valve three (23), and the engine cooling water (71) also passes through Valve two (22) and valve four (24) communicate with the left adsorber (12) and the right adsorber (11) respectively, and the engine cooling water (71) connects with the left adsorber (12) and the right adsorber (11) respectively. A loop is formed between them; the second electromagnetic valve group includes valve five (25), valve six (26), valve seven (27), valve eight (28) and valve nine (29), and the first water pump group includes water pump one ( 51), water pump two (52), the water storage tank (31) communicates with the left absorber (12) and the right absorber (11) respectively through the water pump two (52) through the valve five (25) and the valve seven (27), respectively, The water storage tank (31) is also communicated with the left adsorber (12) and the right adsorber (11) respectively through the valve six (26) and the valve eight (28), and the water storage tank (31) is respectively connected with the water pump one (51) and the valve Nine (29) communicates with the condenser (14), and the water storage tank (31) is respectively formed between the left adsorber (12), the right adsorber (11) and between the water storage tank (31) and the condenser (14). circuit; the third solenoid valve group includes valve ten (20), the second water pump group includes water pump three (53), and the air-conditioning part (61) in the cab is connected to the evaporator ( 13) Communication, a loop is formed between the air-conditioning part (61) in the cab and the evaporator (13). the 4. The adsorption refrigerator according to claim 1, characterized in that: a fan (41) is installed on the water storage tank (31). the

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