CN111672644A - Buffer type nozzle capable of adapting to various flow rates and adjusting method thereof - Google Patents
Buffer type nozzle capable of adapting to various flow rates and adjusting method thereof Download PDFInfo
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- CN111672644A CN111672644A CN202010512019.XA CN202010512019A CN111672644A CN 111672644 A CN111672644 A CN 111672644A CN 202010512019 A CN202010512019 A CN 202010512019A CN 111672644 A CN111672644 A CN 111672644A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a buffer type nozzle capable of adapting to various flow rates and an adjusting method thereof. The nozzle consists of a top cover, a regulating buffer element, a nozzle main body, a filter, a disc-shaped disc and a bottom cover. The adjusting and buffering element consists of an adjusting screw rod, a buffering plate, an adjusting valve clack and a spring. The center of the top cover is provided with an adjusting screw guide sleeve, and the inner wall of the top cover is provided with threads for adjusting the adjusting screw. The filter is sleeved on the adjusting screw rod. A fluid inlet is arranged on the side wall of the nozzle main body; the nozzle body is connected with the top cover through a bolt. The disk type disk is composed of a splitter disk and a nozzle lip, and the disk type disk and the bottom cover are fixed at the bottom of the nozzle main body through a tension bolt. The invention controls the effective layer number of the disc-shaped disc by changing the position of the adjusting valve clack, so that the atomized water film is kept in a stable state. When the flow suddenly changes, the buffer plate can generate small-range displacement under the action of the spring due to the change of water pressure, so that the effective layer number of the disc-shaped disc is finely adjusted, and the effect of stabilizing the atomization effect is achieved.
Description
Technical Field
The invention relates to a nozzle, in particular to a buffer type nozzle capable of adapting to various flow rates and an adjusting method thereof.
Background
In a generator set, water is an important working medium. Along with the development of supercritical and ultra-supercritical units, unit equipment faces high-temperature working conditions, if oxygen is dissolved in water, the corrosion of the equipment can be accelerated, and therefore the water needs to be deoxidized through a deaerator. The principle of thermal deoxygenation is to heat water to saturation temperature to separate out dissolved oxygen from water, so as to reduce the concentration of oxygen in water. In actual engineering, water is sprayed into the deaerator in the form of fog drops by using a nozzle, the specific surface area of the fog drops is large, and the heat transfer efficiency and the mass transfer efficiency can be effectively improved. The constant-speed nozzle is a common nozzle in the deaerator, and the opening of the nozzle can be correspondingly adjusted under different flow rates, so that the flow speed of the nozzle is kept in a relatively stable range. If the flow of water is too large, the opening degree of the nozzle of the constant-speed nozzle is increased, so that the collapse of a water film at the nozzle can be caused, and the atomization effect of the nozzle is influenced. Furthermore, in the case of an unstable flow of water, the atomization effect of the nozzle may also be affected. Therefore, it is a development direction of deaerator nozzles to improve the adaptability of the nozzles to varying flow rates and the stability of sudden changes in flow rate.
Disclosure of Invention
The invention aims to provide a buffer type nozzle capable of adapting to various flow rates, the nozzle can keep a better atomization effect under different flow rates by changing the position of an adjusting valve clack, and meanwhile, a buffer plate plays a role in stabilizing sudden change of the flow rate.
In order to achieve the above purpose, the invention specifically adopts the following technical scheme:
a buffer nozzle capable of adapting to various flow rates comprises a top cover, a regulating buffer element, a filter, a nozzle main body, a disc-shaped disc and a bottom cover;
the top cover is assembled at the top of the nozzle main body, and a fluid inlet is arranged on the side wall of the nozzle main body; the bottom of the nozzle main body is coaxially provided with a plurality of disc-shaped discs, and the disc-shaped discs are arranged in a stacked mode along the axial direction of the nozzle main body;
each disk type disc consists of a splitter disk and a nozzle lip; the flow distribution disc is composed of a cylindrical side wall and an annular top surface, a plurality of water outlet holes are uniformly formed in the cylindrical side wall along the circumferential direction, two nozzle lips are arranged around the circumferential direction of the flow distribution disc in an opposite mode, and an annular nozzle is formed outside the flow distribution disc; under the action of pressure, fluid in the inner cavity of the flow distribution disc passes through the water outlet hole and is sprayed out of the annular nozzle in a water mist mode; the inner cavities of the flow distribution discs of adjacent disc-shaped discs are communicated to form an adjusting flow passage coaxial with the nozzle main body, the top of the inner cavity of the flow distribution disc of the top disc-shaped disc is communicated with the bottom of the inner cavity of the nozzle main body, and the bottom of the inner cavity of the flow distribution disc of the bottom disc-shaped disc is sealed by a bottom cover;
the adjusting buffer element comprises an adjusting screw rod, a buffer plate, an adjusting valve clack and a spring; the adjusting valve clack is coaxially fixed at the bottom of the adjusting screw rod, the buffer plate and the spring are coaxially sleeved on the adjusting screw rod, two ends of the spring are respectively fixed on the buffer plate and the adjusting valve clack, and the buffer plate can axially slide along the adjusting screw rod; the adjusting screw rod is arranged along the axial direction of the nozzle main body, the top of the adjusting screw rod penetrates out of the top cover, the buffer plate and the adjusting valve clack are both positioned in the adjusting flow channel, and the outer diameters of the buffer plate and the adjusting valve clack are the same as or slightly smaller than the inner diameter of the annular top surface of the flow distribution disc; the adjusting screw rod has axial adjusting freedom degree so as to change the positions of the buffer plate and the adjusting valve clack in the adjusting flow passage;
the filter is positioned in the nozzle main body and is in a cylindrical shape with an opening at the top and a closed bottom, and filter holes are uniformly formed in the cylindrical wall; the filter is coaxially sleeved on the adjusting screw rod, and liquid flowing in from the fluid inlet enters the disc-shaped disc after being filtered by the filter.
Preferably, in the adjusting and buffering element, the upper part of the buffering plate is a circular plate, the lower part of the buffering plate is provided with a guide sleeve matched with the adjusting screw rod, and the circular plate is sleeved on the adjusting screw rod through the guide sleeve and slides; the regulating valve flap is preferably cylindrical with a height not less than the thickness of the disc.
Preferably, a bracket is arranged inside the nozzle main body; the filter is fixed on the inner wall of the nozzle main body through the bracket; preferably, the top surface of the filter is circumferentially and hermetically connected with the inner wall of the nozzle body, so that the liquid flowing from the fluid inlet is filtered by the filter and then enters the downstream.
Preferably, the center of the filter is provided with a guide sleeve matched with the adjusting screw rod, the adjusting screw rod penetrates through the filter through the guide sleeve, and the interior of the guide sleeve is not connected with the inner cavity of the filter in a sealing mode.
Preferably, the filter has a bottom with a center higher than the edge, and the edge is formed in a groove shape for storing solid impurities left when the filter medium is filtered.
Preferably, in the disc-shaped disc, the annular top surface of the splitter disc is uniformly provided with a plurality of mounting holes along the circumferential direction, and the bottom of the nozzle main body and the bottom cover are also provided with corresponding mounting holes; the bottom cover and all the disk-shaped disks are fixed at the bottom of the nozzle body through tension bolts penetrating through the mounting holes.
Preferably, stepped bayonets which can be matched with each other are respectively arranged at the top and the bottom of the flow distribution disc, and the two nozzle lip flaps are connected with the flow distribution disc through the bayonets.
Preferably, the outer edges of the nozzle lip flaps are elastic, the outer edges of the two nozzle lip flaps are pressed and attached to each other under the condition of no water pressure, and the outer edges of the two nozzle lip flaps are expanded to form a nozzle for atomizing water under the pressure action of the inner cavity of the flow distribution plate; preferably, the axis of the water outlet hole is perpendicular to the axis of the flow distribution disc and penetrates through the nozzle.
Preferably, the center of the top cover is provided with a guide sleeve with an inner tapping thread, the adjusting screw rod penetrates through the guide sleeve, and the threads of the adjusting screw rod and the guide sleeve are matched to form a thread pair for controlling the axial movement of the adjusting screw rod.
Another object of the present invention is to provide a flow control method using the buffer nozzle according to any of the above aspects, comprising the steps of:
s1: according to the estimated flow and the corresponding relation between different predetermined flows and the number of the starting layers of the disc-shaped discs, the position of the buffer plate is controlled by adjusting the adjusting screw rod, so that the number of the starting layers of the disc-shaped discs above the buffer plate meets the requirement of stable spraying of the disc-shaped discs under the estimated flow;
s2: water flow is led into the nozzle main body from the fluid inlet, and after being filtered through the filtering holes on the side wall surface of the filter, the water flow enters the effective area of the adjusting flow channel from the channel at the bottom of the nozzle main body, and enters the nozzle lip flaps through the water outlet holes on the side wall surface of each flow distribution disc in the effective area, and under the action of pressure, the nozzle lip flaps are expanded to form water films, so that the water is sprayed out in a water mist mode;
when the water flow fluctuates, the water pressure on the top surface of the buffer plate changes, the position of the buffer plate moves under the regulation and control of the spring, the effective layer number of the disc-shaped disc is changed in a self-adaptive manner in the regulation range, and the influence of the flow fluctuation on the atomizing effect of the nozzle is counteracted;
s3: when the actual water flow changes beyond the self-adaptive adjustment range of the buffer plate, the position of the buffer plate is controlled by the adjusting screw rod, the number of layers of the disc-shaped discs is changed, the effective area of the adjusting flow channel is further changed, the water film at the nozzle is kept in a stable state, and the nozzle atomization effect is guaranteed.
The buffer type nozzle suitable for various flow rates provided by the invention can stabilize the forming effect of the water film at the nozzle under different flow rates by changing the effective layer number of the disc-shaped discs, and ensure that the atomizing effect of the nozzle is not influenced by flow rate change. In addition, through the fine setting effect of spring to the buffer board position, can play the effective number of piles of the dish disc of fine setting in less scope when the flow takes place the sudden change, play the atomizing effect of stable nozzle.
Drawings
Fig. 1 is an assembly schematic of the present invention.
FIG. 2 is a schematic view of the assembly of the adjustable cushioning element of the present invention.
Fig. 3 is a schematic view of the structure of the filter of the present invention.
FIG. 4 is a schematic diagram of the assembly of the disk-type disk of the present invention.
FIG. 5 is a schematic view of a diverter tray for a disk of the present invention.
The reference numbers in the figures are: the nozzle comprises a top cover 1, an adjusting buffer element 2, a nozzle body 3, a filter 4, a disc type disc 5, a bottom cover 6, an adjusting screw rod 2-1, a buffer plate 2-2, an adjusting valve clack 2-3, a spring 2-4, a flow distribution disc 5-1 and a nozzle lip 5-2.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
In a preferred embodiment of the present invention, as shown in fig. 1, there is provided a cushion type nozzle capable of accommodating a plurality of flow rates, which mainly comprises a top cover 1, a regulating cushion member 2, a filter 4, a nozzle body 3, a disk 5 and a bottom cover 6.
The nozzle body 3 is a hollow cylindrical structure, a fluid inlet is arranged on the side wall of the nozzle body, and a flange for connecting the nozzle body is arranged outside the nozzle body in a welding mode. The top of the nozzle body 3 is provided with a connecting flange, the center of the bottom of the nozzle body is provided with an opening, and the annular edge of the bottom of the nozzle body is provided with a plurality of threaded blind holes. The top cover 1 also has a flange, which is fitted to the top flange of the nozzle body 3 for sealing. The top cover 1 is provided with a guide sleeve in the center and the inner wall is provided with threads for assembling the adjusting buffer element 2.
The bottom of the nozzle body 3 is coaxially provided with a plurality of disc-shaped discs 5, the disc-shaped discs 5 are arranged in a stacked manner along the axial direction of the nozzle body 3, and each layer of disc-shaped discs 5 are mutually clamped. As shown in fig. 4, each disk type 5 is composed of a diverter disk 5-1 and an orifice lip 5-2. As shown in fig. 5, the diverter tray 5-1 is composed of a cylindrical wall surface and an annular top surface, and the cylindrical wall surface is uniformly provided with water outlet holes along the circumferential direction for allowing fluid to pass through. The inner diameter of the annular top surface of the flow distribution disc 5-1 is the same as the diameter of the section of the adjusting valve clack 2-3. The annular top surface of the splitter plate 5-1 is evenly provided with mounting holes along the circumferential direction, and the axes of the mounting holes are parallel to the axes of the splitter plate 5-1. Stepped bayonets which can be mutually matched are respectively arranged at the top and the bottom of the splitter disc 5-1, the upper splitter disc 5-1 and the lower splitter disc 5-1 are clamped through the bayonets, and meanwhile, the two nozzle lip pieces 5-2 are also arranged on the splitter disc 5-1 through the bayonets. The two nozzle lips 5-2 are both annular and surround along the circumferential direction of the splitter plate 5-1 after installation, the two nozzle lips 5-2 are oppositely arranged and are in mirror symmetry, and an annular nozzle can be formed outside the splitter plate 5-1. The outer edge of the nozzle lip 5-2 has elasticity, the outer edge is close to the inner edge after the nozzle lip and the nozzle lip are installed, and the inner edge has a certain distance so that water in the water outlet hole can enter the nozzle position conveniently. Under the condition of no water pressure, the outer edges of the two nozzle lips 5-2 are pressed and attached to each other, and under the pressure action of the inner cavity of the flow distribution plate 5-1, the outer edges of the two nozzle lips 5-2 are expanded to form a nozzle for atomizing water. Under the action of pressure, fluid in the inner cavity of the flow distribution disc 5-1 passes through the water outlet hole and then is sprayed out from the annular nozzle in a water mist mode. The axis of the water outlet hole is preferably perpendicular to the axis of the flow distribution disc 5-1 and penetrates through the nozzle to reduce flow resistance.
In the area of the disc type 5 in a multilayer form, the inner cavities of the shunt disks 5-1 of the adjacent disc type 5 are communicated to form an adjusting flow channel which is coaxial with the nozzle main body 3, the top of the inner cavity of the shunt disk 5-1 of the disc type 5 at the top is communicated with the bottom of the inner cavity of the nozzle main body 3, and the bottom of the inner cavity of the shunt disk 5-1 of the disc type 5 at the bottom is sealed by a bottom cover 6, so that the water flow entering the nozzle main body 3 is completely sprayed out from the nozzle lip 5-2 of the disc type 5 and cannot leak from other places.
In the present invention, a plurality of layers of disk-type disks 5 are provided, for the purpose of facilitating the adjustment of the effective number of disk-type disks 5 that it activates according to the different flow rates, and this adjustment function is achieved by the aforementioned adjustment buffer member 2.
As shown in figure 2, the adjusting and buffering element 2 consists of an adjusting screw rod 2-1, an adjusting valve clack 2-3, a spring 2-4 and a buffering plate 2-2. Wherein the adjusting valve clack 2-3 is cylindrical, the top is provided with a step hole, and the hole wall is provided with threads. The top of the adjusting valve clack 2-3 is provided with a groove around the step hole. The upper part of the buffer plate 2-2 is a circular plate, the diameter of the circular plate is the same as the diameter of the section of the adjusting valve clack 2-3, the lower part of the center of the circular plate is provided with a guide sleeve matched with the adjusting screw rod 2-1, so that the adjusting screw rod 2-1 penetrates into the circular plate, and the circular plate is sleeved on the adjusting screw rod 2-1 through the guide sleeve and slides. The bottom of the buffer plate 2-2 is provided with a groove around the guide sleeve, and the diameter of the groove is the same as that of the groove of the adjusting valve clack 2-3. The spring 2-4 is sleeved on the adjusting screw rod 2-1. Two ends of the adjusting valve clack are respectively fixed in the grooves of the adjusting valve clack 2-3 and the buffer plate 2-2, and the adjusting valve clack 2-3 and the buffer plate 2-2 are connected. The buffer plate 2-2 can slide along the axial direction of the adjusting screw rod 2-1 under the action of external force and the spring 2-4. The top end of the adjusting screw rod 2-1 is provided with threads, and the bottom end is also provided with threads. The adjusting screw rod 2-1 is matched with the threads of the stepped hole walls of the adjusting valve clacks 2-3 through the threads at the bottom ends, and the effect of threaded connection is achieved. The adjusting screw rod 2-1 is arranged along the axial direction of the nozzle main body 3, the top of the adjusting screw rod passes through the top cover 1 through the guide sleeve on the top cover 1, and the threads of the adjusting screw rod 2-1 and the top of the adjusting screw rod are matched when the adjusting screw rod passes through the guide sleeve, so that a thread pair for controlling the axial movement of the adjusting screw rod 2-1 is formed. The length of the adjusting screw 2-1 should ensure that the buffer plate 2-2 and the adjusting valve flap 2-3 can be completely positioned in the adjusting flow channel, and the position of the buffer plate and the adjusting valve flap can be changed by the axial movement of the adjusting screw 2-1, and the adjusting amplitude should be large enough. The position with the smallest area in the adjusting flow passage formed by each disc type disc 5 is the position of each annular top surface, and the outer diameters of the buffer plate 2-2 and the adjusting valve clack 2-3 are the same as or slightly smaller than the inner diameter of the annular top surface of the flow distribution disc 5-1, so that water flow can not flow through a gap between the buffer plate 2-2 and the adjusting valve clack 2-3 when the buffer plate 2-2 or the adjusting valve clack 2-3 is positioned at the position of the annular top surface, and therefore the function of changing the starting layer number of the disc type discs 5 and further changing the effective area of the adjusting. The height of the regulating flap 2-3 is preferably not less than the thickness of the disk 5 in the cylindrical shape, so as to ensure that it forms a water seal with the annular top surface of at least one disk 5.
The bottom cover 6 is cylindrical, and the center of the top of the bottom cover 6 is concave downwards and is used for accommodating the adjusting valve clack 2-3 positioned at the lowest position. The upper edge of the bottom cover 6 is provided with a stepped bayonet which is matched with the bayonet at the bottom of the diverter disc 5-1.
The disk 5 of the present invention is fixed by tightening bolts. Wherein, the annular top surface of the splitter plate 5-1 is evenly provided with a plurality of mounting holes along the circumferential direction, and the bottom of the nozzle main body 3 and the bottom cover 6 are also provided with a corresponding equal number of mounting holes. The bottom cover 6 and all the disk plates 5 are fixed to the bottom of the nozzle body 3 by tie bolts passing through the mounting holes. Of course, the individual disk plates 5 can also be fixed by other clamping elements than the tensioning screw.
As shown in fig. 3, the strainer 4 has a cylindrical shape, and the strainer 4 has strainer holes in its side wall surface. The bottom of the filter 4 is not provided with an opening, the center of the filter is provided with a guide sleeve for the adjusting screw 2-1 to pass through, and the inside of the guide sleeve is not connected with the inner cavity of the filter 4 in a sealing way, so that water leakage is prevented. An annular bracket is arranged inside the nozzle body 3, and the filter 4 is fixed on the inner wall of the nozzle body 3 through the bracket. Meanwhile, the filter 4 is coaxially sleeved on the adjusting screw rod 2-1 through an inner guide sleeve, and liquid flowing in from the fluid inlet enters the disc-shaped disc 5 after being filtered by the filter 4. The center of the bottom of the filter 4 is slightly higher than the edge, so that the edge is groove-shaped and can be used for storing solid impurities left when the filter medium is stored. In order to ensure the filtering effect, the top surface of the filter 4 is connected with the inner wall of the nozzle body 3 in a sealing way by an annular bracket, so that the liquid flowing from the fluid inlet is filtered by the filter 4 and then enters the downstream.
All parts in the buffer type nozzle are detachable structures, so that the buffer type nozzle can be conveniently detached and assembled. The assembly process is described in detail below:
as shown in fig. 2, the tuned damping element is first assembled. Firstly, the adjusting screw rod 2-1 penetrates through a guide sleeve of the buffer plate 2-2, then one end of the spring 2-4 is fixed in a groove on the bottom surface of the buffer plate 2-2, then the other end of the spring 2-4 is fixed in a groove on the top surface of the adjusting valve clack 2-3, and finally the adjusting valve clack 2-3 is connected with the adjusting screw rod 2-1 through threads.
As shown in fig. 4, the nozzle lip 5-2 is mounted on the splitter plate 5-1 to form a disc-shaped plate 5. The number of layers of the disk 5 is determined according to the flow range of the nozzles.
And as shown in fig. 1, all the parts are assembled into a complete buffer type nozzle which can adapt to various flow rates. The filter 4 is mounted on the holder of the nozzle body 3 with screws. The adjusting screw 2-1 in the adjusting and damping element 2 is passed through a guide sleeve in the centre of the filter 4. An adjusting screw 2-1 in the adjusting buffer element 2 penetrates into a guide sleeve of the top cover 1 and is connected with the top cover 1 through threads. The top cap 1 and the nozzle body 3 are connected by bolts. Several layers of disk-shaped disks 5 and a bottom cover 6 are fixed on the bottom of the nozzle body 3 through tension bolts.
The invention can be suitable for different flow changes to ensure the stability of the water mist. The working principle of the present invention will be explained by taking the increase of the flow rate of water as an example:
the number of layers of the disk type 5 of the buffer type nozzle which can adapt to various flow rates is determined according to the flow range in the actual working condition, and the buffer type nozzle which can adapt to various flow rates is assembled, wherein the disk type 5 which is positioned above the top surface of the buffer plate 2-2 in the adjusting buffer element 2 is effective. In the using process, an adjusting screw 2-1 in the adjusting buffer element 2 is connected with an actuating mechanism, under the working condition of determining a certain flow rate, the actuating mechanism rotates the adjusting screw 2-1 to change the position of the adjusting valve clack 2-3, and the effective layer number of the disc type discs 5 can be determined because the buffer plate 2-2 is connected with the adjusting valve clack 2-3 through a spring 2-4. Water enters the buffering type nozzle capable of adapting to various flow rates from the inlet of the nozzle body 3, the water enters the effective area of the disc type disc 5 from the channel at the bottom of the nozzle body 3 through the filtering holes on the side wall surface of the filter 4, solid impurities are remained in the groove at the edge of the bottom of the filter 4, and the filter 4 can be detached and replaced when the solid impurities are more. After entering the effective area of the disc type 5, the water enters the nozzle lip 5-2 through the through hole on the side wall surface of the splitter disc 5-1, and under the action of pressure, the nozzle lip expands to form a water film to spray the water in the form of water mist.
When the flow rate is increased greatly, the opening degree of the lip 5-2 of the nozzle in the disc 5 is increased, and the water film at the nozzle is collapsed, thereby affecting the atomization effect of the nozzle. The actuator is controlled, the adjusting screw rod 2-1 in the adjusting buffer element 2 is rotated to move the position of the adjusting valve clack 2-3 downwards, the buffer plate 2-2 moves downwards, the effective layer number of the disc type disc 5 is increased, the expansion opening degree of the nozzle lip 5-2 in the disc type disc 5 is reduced, the water film at the nozzle is kept in a stable state, and the effect that the nozzle atomization effect is still not influenced under the working condition of large flow is achieved.
During use, the springs 2-4 are in a compressed state due to the effect of the gravity of the damping plate 2-2 in the adjustment damping member 2 and the pressure of the water. When the flow of water fluctuates or changes suddenly, the water pressure on the top surface of the buffer plate 2-2 changes, so that the stress condition of the spring 2-4 changes, and further the length of the spring 2-4 changes, so that the position of the buffer plate 2-2 moves within a certain range, the effective layer number of the disc type discs 5 can be changed within a small range, and the influence of the flow fluctuation or the sudden change on the atomizing effect of the nozzle is reduced.
Therefore, based on the above-mentioned buffer nozzle, the present invention further provides a flow control method, comprising the steps of:
s1: according to the estimated flow and the corresponding relation between different predetermined flows and the number of the starting layers of the disc type discs 5, the position of the buffer plate 2-2 is controlled by adjusting the adjusting screw 2-1, so that the number of the starting layers of the disc type discs 5 above the buffer plate 2-2 meets the requirement of stable spraying of the disc type discs 5 under the estimated flow. Wherein, the area above the buffer plate 2-2 is the effective area of the adjusting flow channel.
S2: water flow is introduced into the nozzle main body 3 from a fluid inlet, filtered through filtering holes in the side wall surface of the filter 4, enters an effective area of the adjusting flow channel from a channel at the bottom of the nozzle main body 3, enters the nozzle lip 5-2 through water outlet holes in the side wall surface of each flow distribution disc 5-1 in the effective area, and is expanded to form a water film under the action of pressure, so that water is sprayed out in a water mist mode.
When the water flow fluctuates, the water pressure on the top surface of the buffer plate 2-2 changes, the position of the buffer plate 2-2 moves under the regulation and control of the spring 2-4, the effective layer number of the disc type 5 is changed in a self-adaptive manner in the adjustment range, and the influence of the flow fluctuation on the atomizing effect of the nozzle is counteracted.
S3: when the actual water flow change exceeds the self-adaptive adjustment range of the buffer plate 2-2, the position of the buffer plate 2-2 is controlled by rotating the adjusting screw 2-1, the number of the starting layers of the disc-shaped discs 5 is changed, and the effective area of the adjusting flow channel is further changed, so that the water film at the nozzle is kept in a stable state, and the atomizing effect of the nozzle is ensured.
The buffer type nozzle suitable for various flow rates provided by the invention can stabilize the forming effect of the water film at the nozzle under different flow rates by changing the effective layer number of the disc-shaped discs, and ensure that the atomizing effect of the nozzle is not influenced by flow rate change. In addition, through the fine setting effect of spring to the buffer board position, can play the effective number of piles of the dish disc of fine setting in less scope when the flow takes place the sudden change, play the atomizing effect of stable nozzle.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Claims (10)
1. The utility model provides a buffering formula nozzle of adaptable multiple flow which characterized in that: comprises a top cover (1), an adjusting buffer element (2), a filter (4), a nozzle main body (3), a disc-shaped disc (5) and a bottom cover (6);
the top cover (1) is assembled at the top of the nozzle main body (3), and a fluid inlet is formed in the side wall of the nozzle main body (3); the bottom of the nozzle main body (3) is coaxially provided with a plurality of disc-shaped discs (5), and the disc-shaped discs (5) are arranged in a stacked mode along the axial direction of the nozzle main body (3);
each disc type disc (5) consists of a splitter disc (5-1) and a nozzle lip (5-2); the flow distribution disc (5-1) consists of a cylindrical side wall and an annular top surface, a plurality of water outlet holes are uniformly formed in the cylindrical side wall along the circumferential direction, two nozzle lips (5-2) are arranged around the circumferential direction of the flow distribution disc (5-1) in an opposite mode, and an annular nozzle is formed outside the flow distribution disc (5-1); under the action of pressure, fluid in the inner cavity of the flow distribution disc (5-1) passes through the water outlet hole and is sprayed out of the annular nozzle in a water mist mode; the inner cavities of the flow distribution discs (5-1) of the adjacent disc sheets (5) are communicated to form an adjusting flow channel coaxial with the nozzle main body (3), the top of the inner cavity of the flow distribution disc (5-1) of the top disc sheet (5) is communicated with the bottom of the inner cavity of the nozzle main body (3), and the bottom of the inner cavity of the flow distribution disc (5-1) of the bottom disc sheet (5) is sealed by a bottom cover (6);
the adjusting buffer element (2) comprises an adjusting screw rod (2-1), a buffer plate (2-2), an adjusting valve clack (2-3) and a spring (2-4); the adjusting valve clack (2-3) is coaxially fixed at the bottom of the adjusting screw rod (2-1), the buffer plate (2-2) and the spring (2-4) are coaxially sleeved on the adjusting screw rod (2-1), two ends of the spring (2-4) are respectively fixed on the buffer plate (2-2) and the adjusting valve clack (2-3), and the buffer plate (2-2) can axially slide along the adjusting screw rod (2-1); the adjusting screw rod (2-1) is arranged along the axial direction of the nozzle main body (3), the top of the adjusting screw rod penetrates out of the top cover (1), the buffer plate (2-2) and the adjusting valve clack (2-3) are both positioned in the adjusting flow channel, and the outer diameters of the buffer plate (2-2) and the adjusting valve clack (2-3) are the same as or slightly smaller than the inner diameter of the annular top surface of the flow distribution disc (5-1); the adjusting screw (2-1) has axial adjusting freedom so as to change the positions of the buffer plate (2-2) and the adjusting valve clack (2-3) in the adjusting flow channel;
the filter (4) is positioned in the nozzle main body (3) and is in a cylindrical shape with an open top and a closed bottom, and filter holes are uniformly formed in the cylindrical wall; the filter (4) is coaxially sleeved on the adjusting screw rod (2-1), and liquid flowing in from the fluid inlet enters the disc-shaped disc (5) after being filtered by the filter (4).
2. The cushioned nozzle as recited in claim 1, adapted to accommodate a plurality of flow rates, wherein: in the adjusting buffer element (2), the upper part of the buffer plate (2-2) is a circular plate, the lower part of the buffer plate is provided with a guide sleeve matched with the adjusting screw rod (2-1), and the circular plate is sleeved on the adjusting screw rod (2-1) through the guide sleeve and slides; the regulating valve flaps (2-3) are preferably cylindrical with a height not less than the thickness of the disc (5).
3. The cushioned nozzle as recited in claim 1, further comprising: a bracket is arranged in the nozzle main body (3); the filter (4) is fixed on the inner wall of the nozzle main body (3) through the bracket; preferably, the top surface of the filter (4) is connected with the inner wall of the nozzle main body (3) in a sealing way in the circumferential direction, so that the liquid flowing from the fluid inlet can enter the downstream after being filtered by the filter (4).
4. The cushioned nozzle as recited in claim 1, further comprising: the center of the filter (4) is provided with a guide sleeve matched with the adjusting screw rod (2-1), the adjusting screw rod (2-1) penetrates through the filter (4) through the guide sleeve, and the inner part of the guide sleeve is sealed and not connected with the inner cavity of the filter (4).
5. The cushioned nozzle as recited in claim 1, further comprising: the center of the bottom of the filter (4) is higher than the edge, so that the edge is in a groove shape and is used for storing solid impurities left during filtering media.
6. The cushioned nozzle as recited in claim 1, further comprising: in the disc type disc (5), a plurality of mounting holes are uniformly formed in the annular top surface of the splitter disc (5-1) along the circumferential direction, and corresponding mounting holes are also formed in the bottoms of the nozzle main body (3) and the bottom cover (6); the bottom cover (6) and all the disc-shaped plates (5) are fixed at the bottom of the nozzle main body (3) through tension bolts penetrating through the mounting holes.
7. The cushioned nozzle as recited in claim 1, further comprising: stepped bayonets which can be mutually matched are respectively arranged at the top and the bottom of the splitter disc (5-1), and the two nozzle lip flaps (5-2) are connected with the splitter disc (5-1) through the bayonets.
8. The cushioned nozzle as recited in claim 1, further comprising: the outer edges of the nozzle lip flaps (5-2) are elastic, under the condition of no water pressure, the outer edges of the two nozzle lip flaps (5-2) are pressed and attached, and under the pressure action of the inner cavity of the flow distribution disc (5-1), the outer edges of the two nozzle lip flaps (5-2) are expanded to form a nozzle for atomizing water; preferably, the axis of the water outlet hole is perpendicular to the axis of the flow distribution disc (5-1) and penetrates through the nozzle.
9. The cushioned nozzle as recited in claim 1, further comprising: the center of the top cover (1) is provided with a guide sleeve with an inner tapping thread, the adjusting screw rod (2-1) penetrates through the guide sleeve, and the threads of the adjusting screw rod and the guide sleeve are matched to form a thread pair for controlling the axial movement of the adjusting screw rod (2-1).
10. A flow control method using the buffer nozzle as claimed in any one of claims 1 to 9, comprising the steps of:
s1: according to the estimated flow and the corresponding relation between different predetermined flows and the number of the starting layers of the disc type discs (5), the position of the buffer plate (2-2) is controlled by adjusting the adjusting screw (2-1), so that the number of the starting layers of the disc type discs (5) above the buffer plate (2-2) meets the requirement of stable spraying of the disc type discs (5) under the estimated flow;
s2: water flow is led into the nozzle main body (3) from the fluid inlet, and is filtered through filtering holes in the side wall surface of the filter (4), then enters an effective area of the adjusting flow channel from a channel at the bottom of the nozzle main body (3), enters the nozzle lip flaps (5-2) through water outlet holes in the side wall surface of each flow distribution disc (5-1) in the effective area, and is expanded to form a water film under the action of pressure, so that water is sprayed out in the form of water mist;
when the water flow fluctuates, the water pressure on the top surface of the buffer plate (2-2) changes, the position of the buffer plate (2-2) moves under the regulation and control of the spring (2-4), the effective layer number of the disc-shaped disc (5) is changed in a self-adaptive manner in the regulation range, and the influence of the flow fluctuation on the atomizing effect of the nozzle is counteracted;
s3: when the actual water flow change exceeds the self-adaptive adjustment range of the buffer plate (2-2), the position of the buffer plate (2-2) is controlled through the adjusting screw (2-1), the number of the starting layers of the disc type discs (5) is changed, the effective area of the adjusting flow channel is further changed, the water film at the nozzle is kept in a stable state, and the nozzle atomization effect is guaranteed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010512019.XA CN111672644A (en) | 2020-06-08 | 2020-06-08 | Buffer type nozzle capable of adapting to various flow rates and adjusting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010512019.XA CN111672644A (en) | 2020-06-08 | 2020-06-08 | Buffer type nozzle capable of adapting to various flow rates and adjusting method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111672644A true CN111672644A (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010512019.XA Pending CN111672644A (en) | 2020-06-08 | 2020-06-08 | Buffer type nozzle capable of adapting to various flow rates and adjusting method thereof |
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| CN (1) | CN111672644A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160324A (en) * | 2021-09-30 | 2022-03-11 | 北京清新环境技术股份有限公司 | Atomizing nozzle |
| CN114377528A (en) * | 2022-03-23 | 2022-04-22 | 浙江浙能迈领环境科技有限公司 | Energy-saving nozzle suitable for ship desulfurization and spraying system thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5966602A (en) * | 1982-10-08 | 1984-04-16 | ホワイト・コンソリデイテツド・インダストリ−ス・インコ−ポレ−テツド | Multiple nozzle atomizing type desuperheater |
| CN1846871A (en) * | 2005-12-09 | 2006-10-18 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Single-admission and double-area adjustable nozzle |
| CN202253588U (en) * | 2011-10-08 | 2012-05-30 | 杭州美亚发电设备有限公司 | Desuperheater with adjustable spiral nozzles |
| CN102874887A (en) * | 2012-09-19 | 2013-01-16 | 无锡联营电力设备有限公司 | Atomizing nozzle with multiple atomizing heads in deaerator |
| CN203737441U (en) * | 2014-01-27 | 2014-07-30 | 淄博佳能石化机械有限公司 | Built-in type constant speed spray head of deaerator |
| CN206121960U (en) * | 2016-10-08 | 2017-04-26 | 饶星 | Head is driped irrigation to domestic flowerpot of improved generation |
| CN208757826U (en) * | 2018-09-10 | 2019-04-19 | 杭州小沐电子科技有限公司 | A kind of pouring shower convenient for automatically adjusting spraying range |
-
2020
- 2020-06-08 CN CN202010512019.XA patent/CN111672644A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5966602A (en) * | 1982-10-08 | 1984-04-16 | ホワイト・コンソリデイテツド・インダストリ−ス・インコ−ポレ−テツド | Multiple nozzle atomizing type desuperheater |
| CN1846871A (en) * | 2005-12-09 | 2006-10-18 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Single-admission and double-area adjustable nozzle |
| CN202253588U (en) * | 2011-10-08 | 2012-05-30 | 杭州美亚发电设备有限公司 | Desuperheater with adjustable spiral nozzles |
| CN102874887A (en) * | 2012-09-19 | 2013-01-16 | 无锡联营电力设备有限公司 | Atomizing nozzle with multiple atomizing heads in deaerator |
| CN203737441U (en) * | 2014-01-27 | 2014-07-30 | 淄博佳能石化机械有限公司 | Built-in type constant speed spray head of deaerator |
| CN206121960U (en) * | 2016-10-08 | 2017-04-26 | 饶星 | Head is driped irrigation to domestic flowerpot of improved generation |
| CN208757826U (en) * | 2018-09-10 | 2019-04-19 | 杭州小沐电子科技有限公司 | A kind of pouring shower convenient for automatically adjusting spraying range |
Non-Patent Citations (1)
| Title |
|---|
| 蔡锡琮，蔡文钢: "《火电厂除氧器》", 30 April 2007, 中国电力出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160324A (en) * | 2021-09-30 | 2022-03-11 | 北京清新环境技术股份有限公司 | Atomizing nozzle |
| CN114377528A (en) * | 2022-03-23 | 2022-04-22 | 浙江浙能迈领环境科技有限公司 | Energy-saving nozzle suitable for ship desulfurization and spraying system thereof |
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