32results about How to "Reasonable flow rate" patented technology

The invention relates to a fixed grate boiler allowing a square bundle of stalks to be combusted, and in order to solve the problems that conventional boiler allowing a bundle of stalks to be combusted cannot guarantee that the stalks are sufficiently combusted, slag bonding is easy to occur, discharged pollution is high, and the efficiency of the boiler is low. Square water-cooled jackets are arranged all around a pre-combustion chamber, and a part in front of the pre-combustion chamber communicates with a feed opening; an outlet of the pre-combustion chamber communicates with a step combustion chamber which is divided into two-stage combustion chambers, wherein fixed grates are arranged at the lower part of a first-stage combustion chamber; turnover grates are arranged at the lower part of a second-stage combustion chamber; a first-stage primary air chamber is arranged under the fixed grates, a second-stage primary air chamber is arranged under the turnover grates; the total amount of primary air is adjusted through an air inlet regulating baffle, and the first-stage primary air amount and the second-stage primary air amount are distributed through a middle adjusting baffle; secondary air filling nozzles are arranged on two side walls of the step combustion chamber; secondary air reinforcing nozzles are arranged on the front wall of the step combustion chamber, and an inlet of an after-combustion chamber communicates with an outlet of the step combustion chamber. The fixed grate boiler disclosed by the invention is used for heating by peasant households away from heating sources in winter and is used as heat supply heating sources of agricultural greenhouses.

The invention discloses a large air-cooling steam turbo generator stator capable of improving aeration-cooling effect and relates to a large air-cooling steam turbo generator stator. For reducing the maximum temperature rise of an air-cooling steam turbo generator stator bar, the invention adopts the technical points that: an orifice of inner bores of iron core sections which are positioned at the two ends of a stator main body is provided with a chamfer angle (alpha) of between 60 and 75 DEG, the orifice is an axial opening close to one side of an axial midperpendicular plane of the stator main body, and the depth (C) of the chamfer angle is 6 to 12mm. The heat radiating efficiency of a motor cooling system can be effectively improved due to the adoption of the generator stator structure provided by the invention; and under the condition of a given inlet and fixed outlet pressure, when a chamber angle scheme is adopted, experiments prove that the maximum temperature is 3 DEG C lower than that of the conventional scheme after the temperature of the generator stator structure is solved, so the temperature of the hottest section of a motor is effectively reduced, and the whole temperature area of the motor is uniformized.

The invention discloses a dilution water addition device and method for adjusting cross-direction paper basis weight.The device comprises a headbox, a dilution water header pipe, dilution water branch pipes and a concentration adjusting module; pulp distributing branch pipes are arranged in the headbox in a multi-column and side-by-side mode, the concentration adjusting module is arranged above the pulp distributing branch pipes and internally provided with multiple dilution water channels, and each dilution water channel is located above the corresponding column of pulp distributing branch pipes; multiple dilution water branch pipes are distributed on the dilution water header pipe, each dilution water branch pipe is communicated with a pulp distributing header pipe through the corresponding dilution water channel, and the flow direction of dilution water in each dilution water channel is opposite to that of pulp in the corresponding pulp distributing branch pipe.The method comprises the steps that the dilution water provided by the dilution water header pipe is distributed through the dilution water branch pipes and then enters the pulp distributing header pipe through the dilution water channels, and the dilution water is sent out by the pulp distributing branch pipes after being mixed with the pulp which is about to enter the pulp distributing branch pipes.By means of the dilution water addition device and method for adjusting the cross-direction paper basis weight, addition of the dilution water does not affect the outlet flow rates of the pulp distributing branch pipes, and the transverse flow phenomenon is effectively avoided.

The invention relates to a plate type evaporator, which comprises a series of heat exchange plates stacked at intervals between the first heat exchange fins and the second heat exchange fins (2) to form an interlaced , isolated heat exchange channels; the first surface (6) of the first and second heat exchange plates has a heat exchange area (E); the first surface (6) is respectively provided with four corner holes corresponding to the cold / heat medium Liquid inlet channel or liquid outlet channel; at least one groove (3') is provided on the edge of the first liquid inlet hole (a) for cold medium inlet in the four corner holes, and the groove (3') starts from the first inlet The edge of the liquid hole (a) extends all the way to the heat exchange channel; the first surface (6) is centrosymmetric except for the four corner holes, but the arrangement of the center points of the four corner holes also satisfies centrosymmetry; the first and second heat exchange The plates are punched separately from the same substrate. Copper foil is applied on the first surface of each heat exchange plate, the heat exchange plates are stacked in sequence, and the copper foil is heated to melt to form a permanent bond between the first and second heat exchange plates.

The invention relates to a smoke wet sulfur trioxide square adsorption tower. Wherein, the lower section of tower is a cycle slurry tank and the upper section is a washing reaction section; the sections of upper and lower sections are both rectangle and vertically connected; the lower part of upper section is connected to the smoke inlet tube; the middle part of upper section is mounted with spray tubes; the tangent part of top of tower is connected to the smoke outlet; a mixer and a vent tube are inserted into the lower cycle slurry tank. The invention can avoid the slurry deposition of slurry to improve the efficiency of desulfuration and apply the installment of said adsorption tower.

The invention discloses a debris-flow drainage canal with energy dissipation and drainage functions and an application of the debris-flow drainage canal with energy dissipation and drainage functions. The drainage canal comprises a fully-lining drainage canal bottom plate and drainage canal side walls on two sides of the drainage canal bottom plate; the drainage canal bottom plate is in the shape of continuously-connected multiple-stage steps, the steps are provided with grooves; the width of the grooves on the top surfaces of the steps increases gradually along the flow direction of the debris flow, and the width of the grooves on the vertical surfaces of the steps decreases gradually; and the maximum width of the grooves on the top surfaces of the steps coincide with the maximum width B on the vertical surfaces of the steps. Compared wit the prior art, the step shape design is adopted to dissipate the energy of the debris flow all the way and the groove design is adopted to drain the debris flow, so the debris-flow drainage canal disclosed by the invention has high efficiency and good drainage capacity. By adjusting the height and the length of the steps and the size and the shape of grooves, the debris-flow drainagedrainage canal can be used for preventing the debris flow with any gradient and any nature.

The invention relates to the technical field of salt production, in particular to a process for producing refined salt by using salt production waste liquid. The process comprises the following steps of: (1) filtering and preheating: filtering the salt production waste liquid by using a semipermeable membrane, and preheating the waste liquid in a preheater to obtain primary waste liquid; (2) evaporation and thickening: heating and evaporating the primary waste liquid to generate secondary waste liquid with the concentration of 32-35 degrees Be'; (3) cooling and devitrifying: cooling the secondary waste liquid, and filtering to remove the secondary waste liquid to obtain crystallized salt slurry; (4) washing and devitrification: enabling crystallized salt slurry to enter a salt leaching device for saturated brine washing, enabling the washed crystallized salt slurry to enter a salt storage bin and then enter a centrifugal machine through a cyclone to dewater the washed crystallized salt slurry so as to obtain wet salt, and enabling brine mother liquor removed by the centrifugal machine to flow back to the salt leaching device; and (5) drying. By optimizing the process, the phenomena of blockage and refined salt caking in the salt manufacturing process are avoided, and the continuity and stability of salt manufacturing production are ensured.

The invention discloses an engine oil-gas separation device with the good oil-gas separation effect. The engine oil-gas separation device comprises an oil-gas separation cavity, and is characterized in that an accelerating device is arranged in the oil-gas separation cavity, a through hole is formed in the accelerating device, mixed gas flows through the through hole and then enters the oil-gas separation cavity for oil-gas separation, and the through hole is a taper hole. The oil-gas separation efficiency is improved, and oil-mist separation is complete.

The invention discloses a large air-cooling steam turbo generator stator capable of improving aeration-cooling effect and relates to a large air-cooling steam turbo generator stator. For reducing the maximum temperature rise of an air-cooling steam turbo generator stator bar, the invention adopts the technical points that: an orifice of inner bores of iron core sections which are positioned at the two ends of a stator main body is provided with a chamfer angle (alpha) of between 60 and 75 DEG, the orifice is an axial opening close to one side of an axial midperpendicular plane of the stator main body, and the depth (C) of the chamfer angle is 6 to 12mm. The heat radiating efficiency of a motor cooling system can be effectively improved due to the adoption of the generator stator structureprovided by the invention; and under the condition of a given inlet and fixed outlet pressure, when a chamber angle scheme is adopted, experiments prove that the maximum temperature is 3 DEG C lower than that of the conventional scheme after the temperature of the generator stator structure is solved, so the temperature of the hottest section of a motor is effectively reduced, and the whole temperature area of the motor is uniformized.

A horizontal pulverized coal boiler with a single furnace pipe of the present disclosure comprises a combustor, a furnace pipe assembly and a reversal chamber, wherein the combustor is arranged at one end of the furnace pipe assembly, and the reversal chamber is arranged at the other end of the furnace pipe assembly. The furnace pipe assembly comprises a combustion ring forming a combustion chamber, a furnace pipe body and a reversal ring forming a channel. The furnace pipe body comprises at least two pipe sections which are spliced to form the furnace pipe body, wherein a connecting ring groove is formed in the end face of one pipe section, an annular connecting rib matched with the connecting ring groove is arranged on the end face of the other pipe section spliced with the pipe section, and a turbulator is arranged in the furnace pipe body. According to the scheme, in the practical application process, the turbulator is arranged in the furnace pipe body and is mainly used for disturbing the flow speed of smoke in the furnace pipe body, so that the furnace pipe body has higher heat transfer efficiency, and the boiler power can be improved. The inner side walls of the pipe sections are wave-shaped, so that the circulation state of the flue gas in the furnace pipe body is further optimized, and the performance of the boiler is optimized.

The invention relates to an inclined plate settling separating device which comprises a tower, an inlet for ammonium sulfate slurry carrying dust, a dust deposition area, an finished product area, a finished product outlet area and a dust deposition discharge port, wherein an inclined plate separating device in the tower comprises an upper upright type inclined plate separator and a lower inclined type inclined plate separator; the upper upright type inclined plate separator is composed of an upper inclined plate component, an inclined plate supporter and an upper support grid plate; and the lower inclined type inclined plate separator is composed of a lower inclined plate component, an inclined plate supporter and a lower support grid plate. By adopting the technical scheme of the invention, the problem that a finished product cannot be separated from dust effectively is solved; the flow field distribution and flow speed of the ammonium sulfate slurry carrying dust in the separating device are reasonable; the separating speed and the de-dusting efficiency are increased; the inclined plate settling separating device is simple in shape and can be conveniently processed and assembled; and aiming at the problem that dust is gathered in a desulfurizing tower and cannot be cleared off and the stable running effect is seriously influenced, the inclined plate settling separating device can be widely applied to a process of a wet flue gas desulfurization de-dusting system and can meet the requirement of 10m<3>-550m<3> ammonium sulfate slurry de-dusting treatment.

The invention discloses a dilution water addition device and method for adjusting cross-direction paper basis weight.The device comprises a headbox, a dilution water header pipe, dilution water branch pipes and a concentration adjusting module; pulp distributing branch pipes are arranged in the headbox in a multi-column and side-by-side mode, the concentration adjusting module is arranged above the pulp distributing branch pipes and internally provided with multiple dilution water channels, and each dilution water channel is located above the corresponding column of pulp distributing branch pipes; multiple dilution water branch pipes are distributed on the dilution water header pipe, each dilution water branch pipe is communicated with a pulp distributing header pipe through the corresponding dilution water channel, and the flow direction of dilution water in each dilution water channel is opposite to that of pulp in the corresponding pulp distributing branch pipe.The method comprises the steps that the dilution water provided by the dilution water header pipe is distributed through the dilution water branch pipes and then enters the pulp distributing header pipe through the dilution water channels, and the dilution water is sent out by the pulp distributing branch pipes after being mixed with the pulp which is about to enter the pulp distributing branch pipes.By means of the dilution water addition device and method for adjusting the cross-direction paper basis weight, addition of the dilution water does not affect the outlet flow rates of the pulp distributing branch pipes, and the transverse flow phenomenon is effectively avoided.

The invention relates to a slag sensible heat recycling system for an air-cooling dry slag machine. A horizontal segment, close to one side of a lifting segment, of the dry slag machine is provided with a shutter rotation opening-closing mechanism air inlet; the side, away from the lifting segment, of the air inlet is provided with an isolating device; the position, on the inner side of the top ofan outer shell, close to a joint of the dry slag machine and a boiler is provided with a temperature sensor; and the outer wall of the outer shell is provided with a controller, and the top of the dry-slag-machine lifting segment in the air-cooling dry slag machine is connected with a second air preheater and a first air preheater correspondingly through air pipes. The slag sensible heat recycling system for the air-cooling dry slag machine is reasonable in design, the influence of cold air on the operation of the boiler can be effectively avoided, the slag cooling efficiency is improved, meanwhile the slag sensible heat is used sufficiently, the low temperature corrosion environment of the air preheaters is improved, the tail gas temperature of the boiler is raised, at the same time theheat can be recycled by a low temperature economizer to raise the feed-water temperature, the total air volume entering the boiler is controlled, the low nitrogen combustion and low oxygen combustionare achieved, the discharging of NOX from boiler combustion is lowered, the amount of ammonia spraying in SCR area is reduced, and the efficiency of the boiler is improved.

The invention relates to a well cementation buffer and belongs to the field of petroleum machinery. The well cementation buffer comprises a casing communicated with a pipe string and a first buffer component arranged in the casing and provided with a first overflowing hole. At least one additional buffer component is arranged on the downstream of a baffle along the fluid flowing direction, an additional overflowing hole is arranged on the additional buffer component, and a curve fluid flowing channel is formed in the buffer. By means of the well cementation buffer, flowing speed of cement slurry can be reduced remarkably, protection of a well cementation tool on the lower portion of the buffer is achieved, and annulus blocking probability can be reduced remarkably.

The invention relates to a wine-making condensation water-saving device, and belongs to the technical field of liquor steam condensation devices in a liquor production process. The device comprises a cooler and a cooling barrel, wherein a cooling water inlet pipe is mounted at the lower end of the cooling barrel, an overflow opening is formed in the upper end of the side wall of the cooling barrel, the cooler is mounted inside the cooling barrel, a liquor steam butt-joint opening is connected to the upper end of the cooler, a liquor receiving pipe is connected to the lower end of the cooler, a water spraying disc is further mounted inside the cooling barrel, the water spraying disc is mounted below the cooler, a water inlet of the water spraying disc is connected to the water outlet end of the cooling water inlet pipe, and the water spraying disc is provided with a plurality of water outlet holes distributed annularly. According to the device, cooling water firstly passes through the water spraying disc and then is evenly sprayed out through the water outlet holes of the water spraying disc, the condensation effect can be fully guaranteed, then the heat exchange efficiency is improved, and water resources are saved. In addition, the water spraying disc is simple and reliable in structure and low in manufacturing cost and maintenance cost.