Utility model content
The technical problems to be solved in the utility model is, provides a kind of cluster critical heat flux density test unit of improvement.
The utility model solves the technical scheme that its technical matters adopts: construct a kind of cluster critical heat flux density test unit, comprises pressure-bearing shell, runner, heating cluster and fixedly mounts conductive installing plate for heating cluster;
The both end sides of described pressure-bearing shell is respectively equipped with the outlet and entrance that pass in and out for the working fluid with inner space;
Described runner is arranged in described pressure-bearing shell vertically, and two ends are communicated with entrance with described outlet respectively;
The end face of the described pressure-bearing shell that described installing plate is corresponding with described outlet place end separably coordinates, to make the described heating cluster on described installing plate wear in described runner,
Described installing plate and described heating cluster are electrically connected, and and insulate between described pressure-bearing shell.
Preferably, described installing plate comprises nickel plate.
Preferably, the end face of the described pressure-bearing shell that described exit end is corresponding is provided with for the insulating flange to described installing plate insulation isolation.
Preferably, gap is left between the outside wall surface of described runner and the internal face of described pressure-bearing shell.
Preferably, described installing plate is provided with some installation positions of installing for described heating cluster;
Described some installation positions are positioned at described installing plate and the just right regional extent of described runner, and the inner ring profile boundaries of described runner is inwardly departed from described some installation positions.
Preferably, described pressure-bearing shell comprises the end wall on the end face being formed at the described pressure-bearing shell corresponding with described entrance place end, described end wall is provided with and quantity relative with described some installation positions and some through holes corresponding to arrangement mode, passes for described heating cluster.
Preferably, described some installation positions and described some through holes be all square matrix form arrangement; Or,
Described some installation positions and described some through holes include 25, and the arrangement in 5X5 formula square matrix formula respectively.
Preferably, the transversal section of described runner is square, evenly arrange for described some heating clusters matrix form that is square, cage ring is provided with at the outer ring sleeve of described runner, described cage ring coordinates with the internal face of described pressure-bearing shell between described outlet and described entrance, the passageway break formed with the internal face between described outlet and described entrance by the outer ring of described runner and described pressure-bearing shell.
Preferably, described pressure-bearing shell comprises the pipeline section being arranged in middle part and the entrance pipeline section, the outlet pipe section that are detachably installed on described pipeline section two ends respectively;
Described outlet is arranged on described outlet pipe section, and described entrance is arranged on described entrance pipeline section, and described end wall is formed on described outlet pipe section or is removably mounted on described outlet pipe section.
Preferably, described outlet is arranged on the sidewall of described outlet conduit, and described entrance is arranged on the sidewall of described entrance pipeline section.
Implement cluster critical heat flux density test unit of the present utility model, there is following beneficial effect: the installing plate in the utility model and insulating between pressure-bearing shell, after installation heating cluster, installing plate can be electrically connected with heating cluster, be connected with power supply by installing plate, simplify the installation of heating cluster, can also the insulation effect of warranty test apparatus main body part and power supply.
Meanwhile, installing plate and heating cluster form an over all Integration module after installing, and when not nigration device is imported and exported, can carry out replacing lifting to heating cluster.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in Figure 1, the cluster critical heat flux density test unit in the utility model preferred embodiment comprises pressure-bearing shell 10, runner 20, heating cluster 30 and fixedly mounts conductive installing plate 40 for heating cluster 30.
The both end sides of pressure-bearing shell 10 is respectively equipped with the outlet A and entrance B that pass in and out for the working fluid with inner space, and when testing, pressure-bearing shell 10 is vertically arranged usually, and outlet A is positioned at upper end, and entrance B is positioned at lower end.The working fluid is generally deionized water, is injected in pressure-bearing shell 10 by the entrance B of lower end.
Further, runner 20 is arranged in pressure-bearing shell 10 vertically, and two ends are communicated with entrance B with outlet A respectively, cage ring 21 is provided with at the outer ring sleeve of runner 20, cage ring 21 and pressure-bearing shell 10 coordinate exporting the internal face between A and entrance B, with the passageway break that the outer ring of runner 20 and pressure-bearing shell 10 internal face between outlet A and entrance B is formed, make entrance B, runner 20, outlet A is communicated with successively.The working fluid being injected pressure-bearing shell 10 by entrance B is entered in runner 20 by the lower end port of runner 20, and along with the injection continued is by exporting A outflow.
Preferably, between the outside wall surface of runner 20 and the internal face of pressure-bearing shell 10, leave gap, the effect that the heating cluster 30 in runner 20 and runner 20 is incubated can be played, improve the thermal efficiency.The transversal section of runner 20 can be the various shapes such as circle, square, hexagon, can wear for heating cluster 30.
In certain embodiments, the end face of the pressure-bearing shell 10 that installing plate 40 is corresponding with outlet A place end separably coordinates, wear in runner 20 to make the heating cluster 30 on installing plate 40, installing plate 40 is electrically connected with heating cluster 30, and and insulate between pressure-bearing shell 10, prevent from conducting electricity between installing plate 40 and pressure-bearing shell 10 short circuit.Installing plate 40 can be nickel plate etc. can the parts that formed of conducting metal, and one end of heating cluster 30 can be connected with installing plate 40 is dismountable, also heating cluster 30 can be made of one with installing plate 40, realize the conducting with power supply.Installing plate 40 also can arrange the conducting wire corresponding with installation position, after heating cluster 30 is installed, be connected with power supply by conducting wire.
In order to prevent from conducting electricity between installing plate 40 and pressure-bearing shell 10 short circuit, the end face of the pressure-bearing shell 10 corresponding in outlet A one end is provided with the insulating flange 11 for isolation of insulating to installing plate 40.In other embodiments, also insulating washer etc. can be set between installing plate 40 and pressure-bearing shell 10.
Preferably, installing plate 40 is provided with multiple installation position of installing for heating cluster 30, and installation position can be the mounting hole or erection joint etc. installed for heating cluster 30.
After heating cluster 30 is installed to installing plate 40, can realize the integral hoisting of installing plate 40 and heating cluster 30, convenient heating cluster 30 is installed in runner 20 or hangs out from runner 20.
Shown in composition graphs 2, each installation position is positioned at installing plate 40 regional extent just right with runner 20, and the inner ring profile boundaries of runner 20 is inwardly departed from installation position, after heating cluster 30 is installed, convenient heating cluster 30 wears in runner 20, and avoids heating cluster 30 to produce with runner 20 interfering or collide.
After heating cluster 30 loads runner 20, allow installing plate 40 and power supply be electrically connected, heating cluster 30 switches on power, and can heat heating cluster 30.The arrangement mode of heating cluster 30 can according to the installation that should be used for of reality, and as the arrangement of square matrix formula, then the installation position on installing plate 40 comprises multiple installation positions of the matrix form arrangement that is square.Now, the transversal section of runner 20 is preferably square, with corresponding with the square matrix formula arrangement shape of some heating clusters 30, makes the subchannel of the working fluid between each heating cluster 30 even.
As shown in Figure 2, in order to the flowing heat transfer situation in fuel stack that is virtually reality like reality, installation position can be designed to the square matrix formula arrangement mode of 5X5, can install 25 heating clusters 30 altogether, the subchannel of the working fluid is formed, closer to real environment between adjacent heating cluster 30.Can according to actual demands of engineering, the heating cluster 30 that arrangement Different Diameter distributes to power, 16 as outer ring are used for installing lower powered heating cluster 30, and 9 that are enclosed by outer ring are used for installing high-power heating cluster 30.
As shown in Figure 1, in certain embodiments, pressure-bearing shell 10 comprises the pipeline section 12 being arranged in middle part and the entrance pipeline section 13, the outlet pipe section 14 that are detachably installed on pipeline section 12 two ends respectively, and preferably, insulating flange 11 is arranged on outlet pipe section 14.Preferably, outlet A is arranged on the sidewall of outlet pipe section 14, and entrance B is arranged on the sidewall of entrance pipeline section 13, and outlet A and entrance B is arranged on release sidewall being conducive to heating cluster 30 axial thermal expansion in the case of a high temperature.
Detachable due to middle pipeline section 12, can, according to the length of heating cluster 30, can select the middle pipeline section 12 of appropriate length to install, meet the testing requirement of different length heating cluster 30.
Entrance pipeline section 13 comprises the end wall 131 be formed at away from middle pipeline section 12 one end, and in other embodiments, end wall 131 also can be the lid be removably mounted on entrance pipeline section 13.When pressure-bearing shell 10 is structure as a whole, end wall 131 also can be formed on the end face of the pressure-bearing shell 10 corresponding with entrance B place end.
In certain embodiments, end wall 131 is provided with and quantity relative with some installation positions and some through holes 132 corresponding to arrangement mode, passes for heating cluster 30.The heating cluster 30 wearing runner 20 can be connected with power supply after wearing through hole 132, and direct and power supply is connected, and can avoid being connected by pressure-bearing shell 10 and power supply, reduce potential safety hazard.
Carrying out the experiment of cluster critical heat flux density, the heating cluster 30 after being powered when the working fluid flows through runner 20 heats, and along with the rising of heat flow density, critical heat flux density phenomenon can occur heating cluster 30 wall, realizes critical heat flux density test experiment.
Understandably, above-mentioned each technical characteristic can combination in any use and unrestricted.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.