摘要:
A fluid path structure in which the flow rate of fluid flowing in each flow path is equal to each other and in which each flow path has an increased flexibility in shape. The flow path structure has flow paths into which fluid is introduced. The flow paths include flow paths having different flow path lengths. The equivalent diameter of each part of each fluid path is set according to the flow path length of the fluid path so that the entire pressure loss of each flow path is equal to each other.
摘要:
A plate fin heat exchanger of the present invention includes a heat exchange part including a heat exchange part main body including layers of plural flow passages, and heat transfer members each of which is disposed within each flow passage of the heat exchange part main body to transfer the heat of fluid flowing in each of the flow passages to each partition walls opposed across the flow passage; and sensing parts connected to both the outsides of the heat exchange part respectively. Each of the sensing parts includes plural sealed spaces, and a sensor wall disposed to separate the outermost sealed space from the sealed space on the inner side thereof. The plate fin heat exchanger further includes a detection means for detecting damage of the sensor wall of the sensing part. According to such a structure, external leak of the fluid performing the heat exchange can be prevented while suppressing deterioration of performance or increase in size or weight.
摘要:
A reactor includes respective first and second introduction passages for introducing first and second reactants, a merging passage in which the first reactant merges with the second reactant, and a reaction passage in which the two merged reactants react with each other. First and second introduction grooves respectively constituting part of the first and second introduction passages are formed in a first surface of the base of the flow path structure of the reactor, while a reaction groove constituting part of the reaction passage is formed in a second surface of the base. A merging hole constituting part of the merging passage runs from the first surface of the base to the second surface thereof. The downstream end of the first introduction groove and the downstream end of the second introduction groove merge at the merging hole from different directions.
摘要:
An aluminum alloy material having an excellent sea water corrosion resistance comprises an aluminum alloy substrate whose ten-points average surface roughness Rz, which is the average of five greatest peak-to-valley separations on the surface, is controlled at 0.3 μm or over, an organic phosphonic primer film formed on a surface of the aluminum alloy substrate, and a fluorine resin paint film formed on the primer film and having a dry average thickness of 1 to 100 μm. A plate heat exchanger having an excellent sea water corrosion resistance is also provided wherein the aluminum alloy material is used as a heat transfer unit using sea water as cooling water.
摘要:
Disclosed are an aluminum alloy material and a plate heat exchanger using the aluminum alloy material, both of which have superior corrosion resistance. Specifically, the aluminum alloy material includes an aluminum alloy base material having an anodic oxide layer with an average thickness of 1 to 20 μm as its surface layer, an organic phosphonic acid primer coating arranged on the surface of the aluminum alloy base material, and a fluorocarbon resin coating arranged on the surface of the organic phosphonic acid primer coating and having an average thickness of 1 to 100 μm after drying.
摘要:
A flow channel structure that includes a first inlet path for a first fluid, a second inlet path for a second fluid, a merging portion that merges, in the thickness direction of a substrate, the first fluid and the second fluid, a first merged fluid channel in which both fluids merged in the merging portion flow along a top surface of the substrate, a flow direction altering portion that causes the flow direction of the fluid flowing through the first merged fluid channel to change from the top surface side of the substrate towards the back surface side thereof, and a second merged fluid channel for changing the flow direction of this fluid to flow to the downstream side so that the fluid flowing from the first merged fluid channel through the flow direction altering portion flows along the back surface of the substrate.
摘要:
It is aimed to improve reaction efficiency by increasing a contact area of first and second reactants per unit volume without reducing dimensions of an inlet path for the first reactant and an inlet path for the second reactant in a layer-thickness direction.In a reactor, a channel includes a first inlet path having the first reactant introduced thereinto, a second inlet path arranged while being separated from the first inlet path and having the second reactant introduced thereinto, a junction channel for causing the first reactant flowing via the first inlet path and the second reactant flowing via the second inlet path to join in the form of the laminar flows separated from each other, and a reaction channel connected with a downstream side of the junction channel for permitting the laminar flow of the first reactant and that of the second reactant held in contact with each other and reacting the two reactants at a contact interface thereof. A dimension of the reaction channel in the layer-thickness direction perpendicular to the contact interface is set to be smaller than the sum of a dimension of the first inlet path in the layer-thickness direction and a dimension of the second inlet path in the layer-thickness direction.
摘要:
Disclosed is a heat exchanger that can more efficiently transfer heat between a heat-exchange fluid and an object with which heat is to be exchanged. A heat exchanger (1) can transfer heat between a heat-exchange fluid flowing through flow paths (R1) and a fluid with which heat is to be exchanged flowing through other flow paths (R2) by means of the flow path structure member (10) (a first metal sheet (11) and a second metal sheet (12)) in which the flow paths (R1 and R2) are formed. The flow paths (R1 and R2) are formed so that the side surfaces thereof are not straight and so that the depths thereof change along the flow direction.
摘要:
A flow passage structure having a plurality of flow passageways therein includes a first junction portion for joining a first fluid introduced into a first inlet path and a second fluid introduced into a second inlet path, a first joined fluid flow passage through which a fluid made by joining both the fluids flows, a branch portion for dividing the fluid flowing in the first joined fluid flow passage into two fluids, a first branch path through which one of the two divided fluids flows, and a second branch path through which the other flows, wherein a corresponding diameter of the first branch path and a corresponding diameter of the second branch path in each of the passageways are smaller than a corresponding diameter of the first joined fluid flow passage in the passageway.
摘要:
Provided is a reactor which makes it possible to increase the uniformity of mixing of the reactants therein. The reactor is provided with a flow path structure having internal reactant flow passages including: a first introduction passage for the introduction of a first reactant, a second introduction passage for the introduction of a second reactant, a merging passage for causing the first reactant flowing through the first introduction passage to merge with the second reactant flowing through the second introduction passage, and a reaction passage for causing the two reactants which were merged in the merging passage to react with each other while the reactants are flowing. A first introduction groove constituting part of the first introduction passage and a second introduction groove constituting part of the second introduction passage are formed in a first surface of the base of the flow path structure of the reactor, while a reaction groove constituting part of the reaction passage is formed in a second surface of the base. A merging hole constituting part of the merging passage runs from the first surface of the base to the second surface thereof, and the merging hole constitutes the end point of the common part of the first introduction groove and of the second introduction groove, and also the starting point of the reaction groove. The downstream end of the first introduction groove and the downstream end of the second introduction groove merge at the merging hole from different directions on the first surface of the base.