Heat transfer fluid plant

Claim 2

In a heat transfer fluid plant wherein the fluid used is of such nature that contacting of the fluid when hot with air would be detrimental to the fluid, and the presence of gases in the fluid would be detrimental to the general operation of the plant, said plant comprising a boiler means, at least one heat exchanger means, an expansion vessel means, a deaerator means, a damping receiver means, and conduit means connecting said boiler, heat exchanger, expansion vessel, deaerator and damping receiver means to form a fluid circuit; the improvement wherein said deaerator means and said damping receiver means are thermally insulated from and connected to said expansion vessel to form a unitary structure, and said structure is positioned at the highest point of said plant.

Claim 3

The heat transfer fluid plant of claim 1 wherein said deaerator means is in communication with the upper portion of said expansion vessel means and said damping receiver means, and said damping receiver means is in communication with the lower end of said expansion vessel means.

Claim 4

Heat transfer fluid plant comprising a boiler means, at least one heat exchanger means, a unitary structure located at the highest level of the plant, and first conduit means for connecting said boiler means, said heat exchanger means, and said unitary structure means, said structure means comprising an elongated expansion vessel extending substantially horizontally, a substantially vertically extending deareator vessel secured to the bottom of said expansion vessel, and a substantially vertically extending damping receiver vessel secured to the bottom of said expansion vessel, the upper portion of said expansion vessel being formed with a passage means open to the surrounding atmosphere, the lower portion of said deareator vessel being formed with a first coupling element connected to said first conduit means, second conduit means connecting to the lower portIon of said deareator vessel to the upper portion of said damping receiver vessel, the upper portion of said deareator vessel comprising a second coupling element which substantially tangentially penetrates into said deareator vessel and is adapted to be connected to said first conduit means, the upper portion of said deareator vessel being in communication with the upper portion of said expansion vessel, and third conduit means connecting the lower portion of said damping receiver vessel to the lower portion of the expansion vessel.

Claim 5

Heat transfer fluid plant comprising a boiler means, at least one heat exchanger means, a unitary structure located at the highest level of the plant, and first conduit means for connecting said boiler means, said heat exchanger means, and said unitary structure means, said structure means comprising an elongated expansion vessel extending substantially horizontally, a substantially vertically extending deareator vessel secured to the bottom of said expansion vessel, and a substantially vertically extending damping receiver vessel secured to the bottom of said expansion vessel, the upper portion of said expansion vessel being formed with a passage means open to the surrounding atmosphere, the lower portion of said deareator vessel being formed with a first coupling element connected to said first conduit means, second conduit means connecting to the lower portIon of said deareator vessel to the upper portion of said damping receiver vessel, the upper portion of said deareator vessel comprising a second coupling element which substantially tangentially penetrates into said deareator vessel and is adapted to be connected to said first conduit means, the upper portion of said deareator vessel being in communication with the upper portion of said expansion vessel, and third conduit means connecting the lower portion of said damping receiver vessel to the lower portion of the expansion vessel.

Claim 6

The heat transfer fluid plant of claim 3 wherein said deaerator vessel and said damping receiver vessel are thermally insulated from said expansion vessel.

Claim 7

The heat transfer fluid plant of claim 3 wherein said expansion, deaerator and damping receiver vessels are formed of metal, and said deareator and damping receiver vessels are welded to the exterior of said expansion vessel, the inner space of said deaerator vessel and the inner space of said damping receiver vessel being respectively separated from the exterior of said expansion vessel by a mattress of thermally insulating material.

Claim 8

The heat transfer fluid plant of claim 3 wherein said deaerator vessel is of a substantially cylindrical shape, said second coupling element penetrates into said deaerator vessel transversely to the longitudinal axis thereof and extends substantially tangentially to the inside wall of said deaerator vessel, and the communication between the upper portion of said deaerator vessel and the upper portion of said expansion vessel is established by a first tube extending upwardly from said deaerator vessel and passing through said expansion vessel, and wherein a second tube closed at its upper end is mounted on the upper portion of the expansion vessel and is in communication with the interior of said expansion vessel, said first tube extending upwardly into said second tube and terminating in an open upper end spaced from the closed end of said second tube.

Claim 9

A heat transfer fluid plant according to claim 6 wherein the portion of said first tube extending through said expansion vessel is surrounded by insulating means.