Constant temperature water tank structure of diesel engine

Abstract

The invention discloses a constant temperature water tank structure of a diesel engine; the constant temperature water tank comprises a constant temperature water tank body; the constant temperature water tank body is provided with a flat surface which is fixedly connected with an auxiliary supporting tank of the diesel engine; a high temperature water backflow opening and a low temperature water backflow opening are arranged on the flat surface and are respectively communicated with a high temperature backwater opening and a low temperature backwater opening which are arranged on the auxiliary supporting tank of the diesel engine and are led out from the interior of the diesel engine; a high temperature water circulating area and a low temperature water circulating area which are respectively provided with three layers of hollow structures are arranged in the constant temperature water tank body; constant temperature valves arranged in the high temperature water circulating area and the low temperature water circulating area can be used for carrying out cooling water flow direction regulation; plug screws are arranged between the high temperature water circulating area and the low temperature water circulating area by an arched cover cap or a flat surface cover plate and screw holes arranged among the hollow structures of the high temperature water circulating area and the low temperature water circulating area so as to be used for flexibly converting the single circulation or double circulation of cooling water in the whole constant temperature water tank body. The constant temperature water tank structure is independent of the auxiliary supporting tank, thereby the casting and machining difficulty is reduced; the rejection rate is reduced; the integrated level is high; auxiliary pipelines are few; the assembling technology is simplified; the maintenance is convenient; and the overhauling and the installation are very convenient after faults are found.

Description

technical field [0001] The invention relates to the technical field of constant temperature, in particular to a constant temperature water tank structure used in diesel engines, and also belongs to the technical field of diesel engines. Background technique [0002] At present, the auxiliary systems such as the oil circuit and the water circuit of the domestic mainstream marine diesel engine are bloated and complicated. The three channel interfaces of the cooling water circulation temperature adjustment controller all need to be connected and cooperated with external pipes, that is, the inlet of the cooling circulating water, the outlet of the high-temperature circulating water and the The outlets of the cooling circulating water all need to be connected with external pipes. This way of pipe arrangement requires a lot of space and the structure is not compact. The assembly process is complicated; while the structure of the constant temperature water tank and the auxiliary su...

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Problems solved by technology

[0002] At present, the auxiliary systems such as the oil circuit and water circuit of the domestic mainstream marine diesel engine are bloated and complicated. The three channel interfaces of the cooling water circulation temperature adjustment controller all need to be connected and cooperated with external pipes, that is, the inlet of the cooling circulating water, the outlet of the high temperature circulating water and the outlet of the cooling water. The outlets of the cooling circulating water need to be connected with external pipes. This method of pipe layout needs to occupy a lot of space and the structure is not compact.

The assembly process is complicated; while the structure of the constant temperature water tank and the auxiliary support tank or the constant temperature water tank and the high and low temperature water pump in the foreign marine diesel engine structure has a large body, high processing precision requirements, difficult assembly and disassembly, and inconvenient maintenance and high cost defects

[0003] At the same time, in terms of adaptability, there is the inflexibility of switching between single and double circulation of cooling water, that is, the problem that it cannot be used as a marine machine and a land machine at the same time.

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