10results about How to "Increase delivery pressure" patented technology

The utility model provides a transverse spiral feeding jet device, which comprises a tank body, a spiral feeding mechanism, a jet mechanism and a controller, the spiral feeding mechanism is transversely connected to the lower end of the tank body, a feeding port of the spiral feeding mechanism is communicated with the tank body, and the jet mechanism comprises a receiving chamber, a pipeline mixer, an air inlet assembly and an air material conveying pipeline; a discharging port of the spiral feeding mechanism is communicated with an inlet of the receiving chamber, an outlet of the receiving chamber is communicated to the pipeline mixer, one end of the air inlet assembly is communicated with an external air source, and the other end of the air inlet assembly is communicated to the receiving chamber. And after being mixed and compressed by the pipeline mixer, the gas material is pneumatically conveyed into a drilling tool feeding channel of the drilling machine through the gas material conveying pipeline. According to the transverse spiral feeding jetting device, accurate and stable feeding is achieved for a construction feeding background through the intelligent controller, and the construction quality of a dry-method stirring pile is guaranteed.

The utility model relates to the technical field of liquid hydrogen storage and transportation tanks, and discloses a liquid hydrogen storage and transportation tank with quick loading and unloading capacity, the liquid hydrogen storage and transportation tank comprises a tank body and a pump arranged on one side of the tank body, the side wall of the lower end of the tank body is fixedly communicated with a conveying pipe, the pump is arranged on the conveying pipe, and a filling self-feedback mechanism is fixedly arranged on the pipe wall of the conveying pipe. An on-off control mechanism is further installed on the pipe wall of the conveying pipe. The problems that the pressure in the tank body is too large due to the fact that the pump machine works all the time, the pressure relief step needs to be added, and certain danger is brought can be solved.

The utility model relates to the technical field of coffee machines, and discloses a full-automatic water inlet coffee machine which comprises a box body, a water tank, a heating pipeline, a water supply pipeline and a coffee making bin. A box door is hinged to the front side of the box body, the heating pipeline comprises a first pipeline, a three-way connector, a booster pump, a heating body and a second pipeline which are sequentially communicated, and the second pipeline is communicated with the coffee making bin; the water supply pipeline comprises a water inlet pipeline, a flow control pump and a connecting pipeline which are sequentially communicated, the flow control pump is fixedly connected with the box body, one end of the flow control pump is communicated with the water inlet pipeline, and the other end of the flow control pump is communicated with the third end of the three-way connector through the connecting pipeline. The water tank has the advantages that the water tank can be detached, water can be conveniently added, cleaning is facilitated, in addition, full-automatic water feeding can be achieved, the water level in the water tank can be controlled, and the control precision is high.

This invention relates to the field of centrifugal fan technology, and particularly to a high-pressure centrifugal fan with backward-curved blades. The fan includes a volute, an impeller, and a collector. Both the impeller and the collector are housed within the volute, and the collector is fixedly connected to the volute. The impeller includes a front plate and a rear plate. Multiple blades are arranged in an array around the rear plate. An air intake is located in the center of the front plate. The blades are of a single-plate straight structure, each blade including a leading edge, a trailing edge, a first side connecting the first end of the leading edge and the first end of the trailing edge, and a second side connecting the second end of the leading edge and the second end of the trailing edge. The first side is the side closest to the air intake, and the second side is the side furthest from the air intake. The leading edge includes an arc segment near the air intake and a straight segment away from the air intake. The trailing edge is a straight segment. Both the straight leading edge and the trailing edge are parallel to the impeller hub, and the second side is perpendicular to the impeller hub. This high-pressure centrifugal fan has a larger flow rate and higher pressure.

The utility model discloses a shrimp paste production drying preposed filtering device which comprises a material box, a dismounting mechanism is installed at the bottom of the material box, a filter pressing mechanism is installed at the top of the material box, the dismounting mechanism comprises a discharging pipe, the discharging pipe is installed at the position, close to the front end, of the bottom of the material box in a penetrating mode, four clamping grooves are formed in the bottom of the discharging pipe, and the bottom of the discharging pipe is provided with a filter pressing mechanism. A spiral groove is formed in the position, close to the bottom end, of the periphery of the discharging pipe, a filter cover is installed at the bottom of the discharging pipe, four clamping blocks are installed on the top of the filter cover, the periphery of the filter cover is sleeved with a protection cylinder, a limiting groove is formed in the top of the protection cylinder, and a connecting groove is formed in the inner wall of the top of the protection cylinder. According to the preposed filtering device for producing and drying the shrimp paste, the flowability and the conveying pressure of the shrimp paste are improved, the filter casing is convenient to disassemble, assemble and clean after filtering, meanwhile, the lifting height of the spiral blade is convenient to adjust, the touch of the spiral blade is reduced when the filter casing is disassembled, and the overall safety is improved.

The present invention relates to the technical field of termite control grouting, and specifically to a portable water conservancy project termite control grouting device, including a box assembly, one side of the box assembly is provided with a mounting cavity, a boost drive mechanism is installed in the mounting cavity, an auger is provided on the boost drive mechanism, a loading cavity is provided on the box assembly, the auger extends into the loading cavity, and a conveying mechanism is provided on the other side of the box assembly, and the conveying mechanism is connected to the auger. The present application can quickly move the resistance member in a direction away from the conical plug pipe fitting after the conical plug pipe fitting is inserted into the hole of the dam slope, so as to effectively make the resistance member resist the inner wall of the hole, effectively fix the position of the conical plug pipe fitting, and at the same time leave a corresponding gap for gas flow, so that the repair slurry can quickly fill the gaps in the holes in the dam, improve the firmness of the connection between the rock and concrete on the dam, improve safety, and ensure the continuity and stability of grouting.

The invention discloses an integrated adjustable pump which comprises a pump body, an oil distribution assembly, a driving assembly and an executing mechanism. The oil distribution assembly comprises a swash plate, a ball head support, a plurality of ball head connecting rods and a plurality of plungers, and the two ends of the ball head connecting rods are hinged to the swash plate and the corresponding plungers respectively. The driving assembly comprises a driving shaft, a limiting disc, a dip angle disc and multiple guide columns, the driving shaft is fixedly connected with the limiting disc, one end of each guide column is in spherical hinge connection with the dip angle disc, and the other end movably penetrates through the limiting disc to make contact with the swash plate. The actuator is used for driving the tilt disc to rotate to change the tilt relative to the axis of the drive shaft. According to the plunger pumping system, static distribution of liquid by the cylinder body is achieved, energy loss is reduced, and conveying pressure is improved. The multiple guide columns drive the inclination angle disc through the execution mechanism to achieve inclination angle adjustment of the limiting face during rotation, then the movement stroke of the inclined disc and the movement stroke of the plunger are sequentially changed, and the pumping flow is adjustable and controllable.

The invention relates to the technical field of pressure swing adsorption towers, and particularly discloses a pressure swing adsorption tower with a gas uniform distribution filtering mechanism, the pressure swing adsorption tower comprises a tower body, the bottom end of the tower body is provided with a tower bottom cover, and the top end of the tower body is provided with a tower top cover; the three filtering and separating assemblies are mounted on the inner wall of the tower body, an adsorbent is arranged between every two adjacent filtering and separating assemblies, and reinforcing structures are arranged in the filtering and separating assemblies; and the multiple flow dividing cylinders are distributed in an array mode, and each flow dividing cylinder is located between every two adjacent filtering and separating assemblies and inserted into the corresponding adsorbent. According to the invention, the conventional mode that gas enters the adsorbent in a point-surface mode is replaced, the adsorbent enters in a three-dimensional space mode, the pulverization or failure of the adsorbent close to the gas inlet is slowed down, the replacement frequency of the adsorbent is reduced, the production cost is reduced, a multi-point isobaric gas conveying structure is provided, and the effect that the gas is led to the adsorbent is improved.

The invention relates to a hydraulic drive system (10, 10´), comprising at least one first actuator (20), a tank (13), a first non-return valve (43) and a first and a second pump (40, 50), wherein the first pump (40) has a constant displacement volume, wherein the second pump (50) has an adjustable displacement volume, wherein a first fluid flow path extends from the tank (13), via the first pump (40), further via a first control point (11), further via the first non-return valve (43) to a second control point (12), wherein at least one first actuator (20) is fluidically connected to the second control point (12), wherein pressure fluid can be led from the first control point (11) to the tank (13) via an adjustable first diaphragm (41), wherein the first diaphragm (41) is loaded in an opening direction with the pressure on the first control point (11). According to the invention, the first diaphragm (41) is acted upon in the closing direction by a fixedly predeterminable control force (44), which is independent of a separate load pressure (23) acting in the at least one first actuator (20).

The utility model provides a concentrated-phase pneumatic conveying device with a two-stage pressurizing structure, which relates to the field of pneumatic conveying equipment, comprises a transfer tank with an internal hollow structure, and solves the problem that when the conventional concentrated-phase pneumatic conveying device is used for conveying high-viscosity and high-density materials or for long-distance conveying, the transfer tank is difficult to transfer. In order to solve the problems of conveying interruption, material deposition and the like caused by insufficient pressure of a single pressurizing structure in the prior art, a two-stage pressurizing system is formed by primarily pressurizing materials in a transfer tank through a pressurizing pump and secondarily pressurizing airflow through a pulse pressurizing structure composed of a servo motor, a driving gear, a tooth row, a piston plate and the like. The whole conveying pressure is remarkably improved through two-stage pressurization, the problems of conveying interruption and material deposition caused by insufficient pressure during long-distance conveying of high-viscosity and large-density materials are effectively solved, and the continuity of the conveying process is ensured.