A blower has a blower housing of clamshell construction, including two housing members having a scroll back wall molded with radial draft, an impeller and a motor within the housing, and a static tap connected to the housing. The impeller has a backplate with a backplate back surface region of substantially the same radially converging shape as that of a front surface region of the scroll back wall formed by the radial draft, providing a substantially uniform axial gap between the backplate back surface region and the scroll back wall. The impeller has a ring connected by a skirt to the back plate to define a stepped area behind the ring. The impeller includes impeller blades extending forwardly from the impeller backplate and the ring and back fins extending rearwardly from the ring. The blower has a scroll width of about twice an impeller exhaust width.

A system includes a vertical molten sulfur pump assembly that includes a top portion adjacent to a first end of the vertical molten sulfur pump assembly and a bottom portion adjacent to a second end of the vertical molten sulfur pump assembly. A pump motor is disposed in the top portion, an impeller is disposed in the bottom portion within an impeller casing, and a shaft is disposed within a central column and connecting the pump motor with the impeller. A pump inlet is disposed at the second end below the impeller casing. The pump inlet and the impeller casing are configured to be immersed in molten sulfur. The vertical molten sulfur pump assembly is configured to pump the molten sulfur into the inlet and upwards through a discharge passageway by rotation of the impeller. A vibration sensor and a temperature sensor are disposed on an external surface of the bottom portion, on or proximate to the impeller casing and the pump inlet. The temperature sensor is configured to measure a temperature of the molten sulfur proximate to the pump inlet. The vibration sensor includes a substrate comprising a polymer and a resonant layer disposed on a surface of the substrate. The resonant layer includes an electrically conductive nanomaterial and is configured to produce a resonant response in response to receiving a radio frequency signal.

A magnetically attracted fan set comprises N+1 fans, the N≥1, and each of the N+1 fans has a fan frame and an airflow generating component disposed on the fan frame. Any two adjacent fans of the N+1 fans respectively have a joint surface, each of the joint surfaces has at least one fixing member capable of forming magnetic attraction, when the joint surface is close to the other joint surface at a distance sufficient for the two fixing members on the two joint surfaces to form magnetic attraction, two of the N+1 fans are joined together. Accordingly, the invention is capable of directly and quickly joining the N+1 fans without requiring complicated assembly gestures or other external components.

A centrifugal fan includes: a fan, blades; and a scroll casing housing the fan, the scroll casing including a discharge portion, and a scroll portion including a side wall, a circumferential wall, and a tongue portion. In the circumferential wall, at a first end between the circumferential wall and the tongue portion, and at a second end between the circumferential wall and the discharge portion, a distance between an axis of the rotational shaft and the circumferential wall is equal to a distance between the axis of the rotational shaft and a standard circumferential wall, and is greater than or equal to the distance between the first end and the second end of the circumferential wall, the circumferential wall including a plurality of extended portions between the first end and the second end of the circumferential wall.

A vacuum chamber module and an apparatus are disclosed. The vacuum chamber module comprises: a pump wall defining a recess shaped to receive a multi-stage vacuum pump; a plurality of vacuum chambers, each vacuum chamber being configured to be pumped by a respective stage of the multi-stage vacuum pump, each vacuum chamber being defined at least partially by a portion of the pump wall, each vacuum chamber having an pumping port located at a different circumferential position on the pump wall for fluid communication with the respective stage of the multi-stage vacuum pump. In this way, a module is provided which shares components, with the multi-stage pump at least partially accommodated within space otherwise occupied by the vacuum chambers and with the vacuum chambers located around the pump wall, which provides for a simpler and more compact arrangement.

A vacuum chamber module and an apparatus are disclosed. The vacuum chamber module comprises: a pump wall defining a recess shaped to receive a multi-stage vacuum pump; a plurality of vacuum chambers, each vacuum chamber being configured to be pumped by a respective stage of the multi-stage vacuum pump, each vacuum chamber being defined at least partially by a portion of the pump wall, each vacuum chamber having an pumping port located at a different circumferential position on the pump wall for fluid communication with the respective stage of the multi-stage vacuum pump. In this way, a module is provided which shares components, with the multi-stage pump at least partially accommodated within space otherwise occupied by the vacuum chambers and with the vacuum chambers located around the pump wall, which provides for a simpler and more compact arrangement.

The present disclosure relates to a pump.

The pump of the present disclosure includes: a housing; an impeller disposed in the housing and rotating to generate a flow of fluid; and a pump motor configured to rotate the impeller, wherein the impeller includes: a first plate having a disk shape; a boss extending vertically from a center of the first plate, and coupled to a rotating shaft of the pump motor; a plurality of blades extending from an outer circumferential surface of the boss in a radial direction of the first plate; and a second plate having a surface parallel to the first plate, spaced apart from the first plate by a predetermined distance, and connected to the plurality of blades.

A system for cooling a circuit component on an electronic device includes a closed-loop cooling circuit and a coolant filling device. The closed-loop cooling circuit includes a coolant block, a first pump and a radiator. The coolant filling device includes a container, a base and a second pump disposed inside the base. The coolant filling device is configured for attachment to the cooling circuit. In some embodiments, when the coolant filling device is attached to the cooling circuit, coolant may be circulated from the coolant filling device to the cooling circuit while the cooling circuit circulates coolant. In further embodiments, when the coolant filling device is attached to the cooling circuit, coolant may be circulated from the coolant filling device to the cooling circuit while the electronic device remains powered on.

A system for cooling a circuit component on an electronic device includes a closed-loop cooling circuit and a coolant filling device. The closed-loop cooling circuit includes a coolant block, a first pump and a radiator. The coolant filling device includes a container, a base and a second pump disposed inside the base. The coolant filling device is configured for attachment to the cooling circuit. In some embodiments, when the coolant filling device is attached to the cooling circuit, coolant may be circulated from the coolant filling device to the cooling circuit while the cooling circuit circulates coolant. In further embodiments, when the coolant filling device is attached to the cooling circuit, coolant may be circulated from the coolant filling device to the cooling circuit while the electronic device remains powered on.

Provided is a heating blower, comprising an air duct, a motor and a wind wheel arranged in the air duct, and a heating device arranged at a first air outlet of the air duct; the wind wheel is fixed to a rotating shaft of the motor; the heating device comprises a housing, an electric heater and a moving assembly; the housing is sleeved on the first air outlet, forming an inner chamber, which comprises a first area facing directly to the first air outlet and a second area not facing directly to the first air outlet; the electric heater is arranged on the moving assembly, and moves between the first area and the second area along with the moving assembly, so that an airflow blown from the first air outlet switches between a state of passing the electric heater and a state of not passing the electric heater, and is blown out from a second air outlet provided at the housing.