30 results about "Tube Spacer" patented technology

Coil assemblies for use in heat exchange applications are made using polymeric tubes, some with heat exchange and water redistribution media integral with the coil assembly and others with a water distribution subassembly integral with the coil assembly. One coil assembly includes at least two generally linear passes that are connected by return bends formed by folding an array of polymeric tubes. The passes have an array of at least two layers of polymeric tubes that pass through alignment holes in tube spacers only along the passes to maintain the tubes in substantially the same relative positional relationship to each other in the passes and in the return bends. Methods are explained for forming the coil assemblies and components, including the tube spacers and tube sheets to connect the coil assembly to inlet and outlet manifolds for the processing fluid flowing internally through the tubes.

A tube spacer S formed by bending a wire, includes a plurality of projections 20 and a base-bending portion 21. Each of the projections 20 is inserted between tubes, and has a pair of extending portions 201 extend in X direction and a front-bending portion 202 for connecting both front ends of the pair of extending portions 201. The base-bending portion 21 connects both rear ends of the projections 20 so that the projections 20 are arranged at interval in Z direction. With this structure, manufacturing cost for the tube spacer S can be low, and the tubes can be stably supported.

The present invention discloses a flat type fluorescent lamp that is improved in its light emission efficiency and brightness by installing a tube spacer between 2 panels. A flat type fluorescent lamp includes an outer lamp body comprising front and rear panels, and circumference seal members, and tube spacers installed in the outer lamp body to divide the discharge spaces in plural sections communicating with each other to define a discharge path, a phosphor layer deposited on the outer lamp body and the tube spacers, and a discharge electrode supported on the outer lamp body.

A polymer or other substrate optimized for growing cells is described, which takes the form of a micro-thin bag with gas permeable sides. Sides of the bag can be held at a fixed distance from one another with a multitude of tiny micropillars or other spacers extending between them, keeping the bag at a predetermined thickness and preventing the bag from collapsing and the sides from sticking together. In other embodiments, the sides may be held apart by gas pressure alone. A 0.01 μm to 1000 μm parylene or other biocompatible coating over the bag outsides controls the permeability of the bag material and provides a bio-safe area for cell growth. An alternate configuration uses open-cell foam with skins coated with a biocompatible coating. Tubes going into multiple bags can be connected to a manifold that delivers gaseous oxygen or removes carbon dioxide and other waste gases. Multiple bags can be stacked together tightly, with o-ring spacers in between, and housed within a vessel to form a high-surface area, ultra-compact cell growing system. For cells growing on the bags, liquid nutrients can be fed by way of the tube spacers, and oxygen and waste gases permeated through the bag sides and transported within the bags.

A direct expansion geothermal heat exchange system with spacer fins attached to at least one of a sub-surface refrigerant transport tubing containment pipe and to sub-surface refrigerant transport tubing, so as to ensure the sub-surface pipe/tubing does not come into direct contact with the ground and is surrounded/encased by a thermally conductive grout that is resistant to corrosive sub-surface elements.

The invention discloses a hydrogen-oxygen gas dynamic resonance surface igniter, which belongs to the field of rocket engines. The hydrogen-oxygen gas dynamic resonance surface igniter consists of a hydrogen joint nozzle 1, an oxygen joint nozzle 2, a nozzle 3, a seal washer 4, a mixing cup 5, an ignition chamber 6, a resonating tube joint nozzle 7, a resonating tube spacer shim 8, a resonating tube 9 and an air joint nozzle 10, wherein the mixing cup is positioned between the nozzle and the ignition chamber and is provided with two rows of holes; the hydrogen and oxygen sprayed from the igniter nozzle pass through the mixing cup and then enter into the ignition chamber, thus being favor for blending and combusting; the resonating tube joint nozzle is positioned at the side face of the igniter, and the resonating tube joint nozzle is welded between the two rows of the holes of the mixing cup, thus being favor for igniting; the resonating tube stretches into the ignition chamber by means of the resonating tube joint nozzle, is fixed by screw threads between the air joint nozzle and the resonating tube joint nozzle, and can be sealed by utilizing the resonating tube spacer shim to regulate the depth of stretching into the ignition chamber of the resonating tube.

The invention discloses a graphite heat exchanger. The graphite heat exchanger comprises a cylinder body, wherein a tube header is arranged on one side of the cylinder body, and an end socket is arranged on the other side of the cylinder body; a tube plate I and a tube plate II are arranged between the cylinder body and the tube header, a tube plate III and a tube plate IV are arranged between the cylinder body and the end socket, a spreader plate is arranged between the tube plate I and the tube plate II, and a spreader plate is arranged between the tube plate III and the tube plate IV; a graphite heat exchange tube is arranged between the tube plate I and the tube plate III; a pull rod is arranged in the cylinder body and sleeved with a tube spacer, and a baffle plate is installed on the tube spacer; a water inlet is formed in the upper end of the cylinder body, a water outlet is formed in the lower end of the cylinder body, and an anti-scour plate is arranged at the lower end of the water inlet. The graphite heat exchanger is reasonable in design and easy to operate. By means of the anti-scour plate, the impact of the water inlet on the heat exchange tube is reduced; by means of the interaction between the pull rod, the tube spacer and an expansion joint, vibration of the heat exchanger itself and vibration caused by external force are reduced, stress caused by temperature difference is reduced, and then the heat exchange tube is protected from damage, so that the service life of the heat exchanger is effectively prolonged.

The invention discloses a punching device for processing silicon carbon rods, which comprises a base, a fixed cylinder and a motor box. A blower switch is arranged on the right side of the base, a motor switch is arranged above the blower switch, and a motor switch is arranged above the motor switch. There is a light switch, the upper part of the base is fixedly connected to the frame, the top of the frame is fixedly connected to the top box, a rotating rod runs through the top of the fixed cylinder, and an extrusion block is arranged in the middle of the rotating rod, and the right end of the rotating rod A handle is provided, and a motor is installed inside the motor box. In the present invention, a partition is arranged inside the fixed cylinder, and return springs are installed at the left and right ends of the top of the partition. The pressing block squeezes the lifting rod and resets it to avoid drilling too deep, which may cause drilling failure.

The invention relates to a longitudinal-flow heat exchanger which takes a petal pore plate as bundle support; the heat exchanger comprises a shell body, a seal head, a heat transfer tube bundle, a petal pore plate support, a pull tube and a tube spacer, a shell-side inlet and outlet tube, a tube-side inlet and outlet tube, and the like, wherein the petal pore plate is shown as the attached drawing 1, i.e., an entire circular plate which is a full circular plate composed of support strips and pedals which are arranged along the same direction, and is a key component of the heat exchanger; by the support strips which are arranged in a criss-cross way on two petal pore plates, the all-round support to the heat exchanger bundle is achieved, thereby leading the whole bundle to have good vibration prevention and resistance capacity; under the action of the petal pore plate, the heat exchanger shell-side fluid flows vertically along a tube axis; the functions of flow guide and disturbance of the pore plate petal can exacerbate fluid turbulence, thereby effectively enhancing convective heat transfer and producing good scale prevention and descaling functions; and the blocking effect of the periphery of the pore plate reduces the leakage flow ineffective on heat transfer; and the invention can be widely used in heat exchange equipment such as longitudinal-flow vertical and horizontal tube shell type heat exchanger, tube shell type condenser, etc.

The invention discloses a clamp capable of being used for a zirconium pipe fatigue test and a test method. The clamp comprises a clamping part used for providing clamping constraint for the end of a tubular test piece, an inner plug used for filling the end of the test piece and a pipe gasket used for wrapping the outer side of the end of the test piece, and the inner plug and the pipe gasket areboth made of soft thermal expansion materials. The test method is based on the clamp. By adopting the clamp and the method provided by the scheme, the high-cycle fatigue test of the zirconium pipe ofthe fuel rod can be completed.

The invention discloses a new type of LED lamp, which includes a lamp part and a power transmission box. A first cavity is arranged inside the power transmission box, and a second cavity is arranged in the power transmission box on the top of the first cavity. The second cavity The inner top wall is provided with a sliding connection groove, and the outer wall of the power transmission box on the right side of the first cavity is provided with an installation groove, and there is a through groove between the installation groove and the first cavity, and the first cavity is provided with an upper and lower The elongated adapter shaft, the top of the adapter shaft penetrates the inner wall of the power transmission box and penetrates into the second cavity and is connected with the operation. The adapter shaft in the first cavity is fixed with an adapter tube. There are corresponding spacers on the upper and lower sides of the connecting pipe, cables are wound on the transfer pipe between the upper and lower sides of the spacers, and the first toothed wheel and the sliding groove are installed at the end of the top of the transfer shaft in the second cavity. There is a screw-shaped rod inside, and the left end surface of the screw-shaped rod is connected with the first electric rotating machine; the invention has simple structure, convenient operation, can automatically control the wire take-up and pay-off work, and improves work efficiency and safety.