RU65191U1 - PHASE TRANSITION HEAT BATTERY - Google Patents

Abstract

The utility model relates to engine building, and in particular to devices for heating a diesel diesel engine at negative ambient temperatures. The phase-transition heat accumulator contains a thermally insulated evacuated cylindrical body with a removable cover having an inlet and an outlet, an inlet and an outlet pipe, a block of capsules filled with the same heat-accumulating material and made of coaxially arranged cylinders with the formation of annular gaps between them for the passage of the liquid coolant. It contains at least two capsule blocks with different heat-accumulating material located in one evacuated casing, has common inlet and outlet pipelines, and the inlet pipes of the capsule blocks are connected by the bypass pipes to the inlet pipe, and the outlet pipes of the capsule blocks are connected by the bypass pipes with the inlet pipes of the blocks with a lower operating temperature range and a shut-off valve is installed on each bypass pipe. Such a battery allows the extraction of thermal energy from the exhaust gases of the internal combustion engine in a wider temperature range and thereby accumulate and retain a greater amount of heat, and also ensures the selectivity of the operating temperature range.

Description

The utility model relates to engine building, and in particular to devices for heating a diesel diesel engine at negative ambient temperatures.

A device for heating the internal combustion engine of a mobile machine is known, consisting of a thermally insulated evacuated cylindrical body with a removable cover having an inlet and outlet openings, inlet and outlet pipes pressed into them, housed in a block body made of tubular capsules parallel to the staggered shape filled with an aggregate state operating temperature range with storage material. The device is connected to the internal combustion engine cooling system of a mobile machine [Application RU No. 97113939/06, IPC 6 F 24 H 7/00, 1999].

The disadvantage is the presence of a large number of tubular capsules, the manufacture and filling of which is a laborious process. A large number of capsules in turn leads to a decrease in the reliability of the battery design.

Known heat accumulator phase transition, consisting of a thermally insulated evacuated cylindrical body, removable cover, inlet and outlet openings. Intake and exhaust pipes are pressed into these holes. Inside the housing is a heat exchanger consisting of coaxially arranged cylindrical capsules. Capsules are filled with heat storage material. The heat exchanger is mounted on a removable cover using a bolted connection and is welded to the body. This battery is included in the cooling system of the internal combustion engine of a mobile machine [RF Patent No. 2187049, IPC 7 F 24 H 7/00, publ.

12/25/2002. Shulgin V.V., Gulin S.D., Nikiforov G.I. and others. "Thermal battery phase transition"].

Such a design cannot provide heating of the coolant from the ambient temperature above + 50 ° C and regulation of the amount of heat supplied.

This technical solution is selected by the authors as a prototype.

The technical result is the expansion of functionality, due to the structural support of the intake of thermal energy of the exhaust gases in a wider temperature range and the ability to control the amount of heat supplied.

The technical result is achieved in that in a heat accumulator containing a thermally insulated evacuated cylindrical body with a removable cover having an inlet and an outlet, an inlet and an outlet pipe, a block of capsules filled with the same heat storage material and made of coaxially arranged cylinders with the formation of ring gaps between them for the passage of the liquid coolant, at least two more blocks of capsules with different heat-storage material are additionally introduced, common input and output pipelines, the inlet pipes of the capsule blocks being connected by the bypass pipes to the inlet pipe, and the exhaust pipes of the capsule blocks are connected by the bypass pipes to the inlet pipes of the blocks with a lower operating temperature range and a shut-off valve is installed on each bypass pipe.

Figure 1 presents the heat accumulator of the phase transition.

The phase transition thermal accumulator consists of a vacuum case 1, a removable cover 2, having inlet 3, 4, 5 and outlet 6, 7, 8 openings into which inlet 9, 10, 11 and outlet 12, 13, 14 pipe blocks are pressed. Inside the case there are blocks 15, 16, 17,

consisting of coaxially arranged cylindrical capsules 18 with gaps 19 for the passage of fluid. The entire design of the heat exchanger is mounted on a removable cover 2, which is fixed by means of a bolted connection 20 to the ring 21 welded to the body. The amount of heat supplied can be controlled by the presence of shut-off valves 22, 23, 24, 25, 26 on the bypass pipes.

The device operates as follows. When the internal combustion engine is operating, the exhaust gas stream enters the inlet pipe 9 through the inlet pipe, then passes through the annular openings 19, leaves the block 15 with medium-temperature heat-accumulating material (350 ° C) into the exhaust pipe 12, and then passes sequentially through the inlet 10, 11 and the outlet 13 of the pipe to the block with a low-temperature heat storage material (120 ° C) exits through the outlet pipe 14. In this case, the heat storage material located in the cylindrical capsules 18 is heated in the solid phase to the melting temperature It melts and then heats up in the liquid phase to a certain temperature at which thermal equilibrium sets in between it and the exhaust gases. The heat is accumulated due to the presence of a vacuum case 1. Cover 2 with input 3, 4, 5 and output 6, 7, 8 holes is removable and fastens with a bolt connection 20 to the ring 21 welded to the body.

The battery returns heat energy in the general case by pumping the heat carrier through the inlet pipe 9, inlet and outlet pipes of blocks 15, 16, 17, annular gaps 19 and the outlet pipe 14. In this case, a reversible phase transition occurs, as a result of which the heat-accumulating material crystallizes and gives off previously stored energy to the coolant. The coolant is heated by ambient temperature and transfers this energy to engine parts. Air is used as a heat carrier in the self-heating mode of a diesel diesel engine, and 16 are working units

diesel uses air, and the working blocks are 16 and 17; in the mode of connection to the cooling system of the internal combustion engine, the coolant is the coolant, the working unit 17; in the mode of connecting the locomotive to the heating system during the sludge in the box, the coolant is water, working blocks 15, 16, 17. The amount of heat supplied is controlled by bypass shut-off valves 22, 23, 24, 25, 26 (the binding of heat-accumulating blocks and ICE systems is conditional not shown).

The use of this device will reduce the cost of diesel fuel for heating locomotives in the cold season.

Claims (1)

Phase-transition heat accumulator containing a thermally insulated evacuated cylindrical body with a removable cover having an inlet and outlet, an inlet and an outlet pipe, a capsule block filled with the same heat-accumulating material and made of coaxially arranged cylinders with the formation of annular gaps between them for the passage of a liquid coolant, different the fact that it contains at least two blocks of capsules with different heat storage material, placed in one evacuated the casing, has common inlet and outlet pipelines, and the inlet pipes of the capsule blocks are connected by the bypass pipes to the inlet pipe, and the outlet pipes of the capsule blocks are connected by the bypass pipes with the inlet pipes of the blocks with a lower operating temperature range and a shut-off valve is installed on each bypass pipe.