CN102247676A - Closed type high-pressure water mist spray nozzle - Google Patents
Closed type high-pressure water mist spray nozzle Download PDFInfo
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- CN102247676A CN102247676A CN 201110202817 CN201110202817A CN102247676A CN 102247676 A CN102247676 A CN 102247676A CN 201110202817 CN201110202817 CN 201110202817 CN 201110202817 A CN201110202817 A CN 201110202817A CN 102247676 A CN102247676 A CN 102247676A
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Abstract
The invention relates to a closed type high-pressure water mist spray nozzle comprising a hollow spray nozzle base, a nozzle, an atomization core and a temperature sensitive mechanism, wherein the nozzle is provided with water outlets; the temperature sensitive mechanism can automatically start to spray water when temperature exceeds a critical point; the atomization core is arranged in a cavity inside the nozzle; the upper part of the atomization core is provided with a cylinder, the lower part of the atomization core is provided with a connecting part with two oppositely arranged arc-shaped side walls and two parallel side walls, and water delivering channels are arranged between the two parallel side walls and the inner surface of the cavity inside the nozzle and between the outer wall of the cylinder and the inner surface of the cavity inside the nozzle; the top end of the cylinder is provided with atomization counter bores and a plurality of atomization grooves; and the water delivering channels, the atomization grooves and the water outlets are mutually communicated. According to the closed type high-pressure water mist spray nozzle disclosed by the invention, water mists with uniform and fine fog drops, wide atomization angles and small grain diameters can be sprayed, and an ideal atomization effect and a good fire extinguishing effect are achieved; in addition, the closed type high-pressure water mist spray nozzle disclosed by the invention has the advantages of simple structure and low manufacturing cost and has a higher and higher actual application value and a better and better market prospect with the national standard 'water mist fire extinguishing system and part general technical specifications' to be promulgated and implemented.
Description
Technical field
The present invention relates to the atomization of liquid shower nozzle in the fire-fighting fire-extinguishing equipment, be specifically related to a kind of closed-type high-pressure water mist shower nozzle
Background technology
Fine water mist fire-extinguishing system has advantages such as environmental protection, safety, extinguishing ability are strong, few, the water stain pollution of fire extinguishing water consumption is little and applied widely, is a kind of environmental protection, fire-fighting technique efficiently, is widely used in fire-fighting domain.Fine mist spray head is the key element of fine water mist fire-extinguishing system, is the greatest factor that influences the fire extinguishing system extinguishing property.According to the difference of Starting mode, fine mist spray head can be divided into two types of open type and encloseds, and wherein automatic sprinkler can be responded to fire and takes place, and starts spraying fire extinguishing action voluntarily.According to the difference of fine water mist fire-extinguishing system operating pressure, fine mist spray head can be divided into high-pressure type (fine mist spray head of P 〉=3.5Mpa) and the mesolow type (fine mist spray head of P≤3.5Mpa) again.In the high-pressure type fine mist spray head, nozzle and atomizing core are the critical components of the thin water smoke atomization quality of decision, and atomizing type, inner flow passage molded lines and the structural parameters etc. of nozzle and atomizing core all can influence atomizing effect, and then influence fire extinguishing effect; But, because the operating pressure height, shower nozzle design and produce difficulty and cost of manufacture is also high.Therefore, how reducing the difficulty that designs and produces of shower nozzle when improving the fire extinguishing effect, reduce the cost of fire extinguishing system, is to develop the problem that the heavy pressure fine spray shower nozzle must be considered.。
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provides that a kind of cost of manufacture is low, atomization characteristics good, the closed-type high-pressure water mist shower nozzle of good extinguishing effect.
For solving above technical problem, the present invention takes following technical scheme:
A kind of closed-type high-pressure water mist shower nozzle comprises hollow spray headstock with water inlet, is fixedly installed on nozzle and atomizing core on the described nozzle boss sidewall, and nozzle is provided with the apopore that can be connected with water inlet; Described shower nozzle also comprises temperature-sensitive mechanism, and this temperature-sensitive mechanism comprises that one is used to block the temperature-sensing element of water inlet, and this temperature-sensing element can break away from water inlet above under the temperature of its critical point, wherein:
Be formed with the nozzle chamber that is connected with apopore in the described nozzle, this nozzle chamber comprises cylinder chamber and the conical cavity that shrinks to the axis direction of cylinder chamber gradually from the last circumference of described cylinder chamber, and the osculum end and the apopore of described conical cavity join;
Described atomizing core is arranged in the nozzle chamber, cylinder is formed at the top of atomizing core, the connecting portion that can be connected with nozzle is formed at the bottom, this connecting portion has two curved walls and two parallel side walls adjacent with curved wall that are oppositely arranged, formed aquaporin between the inner surface of described two parallel side walls, cylindrical outer wall and nozzle chamber, in addition, the bottom of this connecting portion also offers mounting groove; Described cylindrical top mid portion caves inward and forms an atomizing counterbore, and cylindrical tip edge partly forms first taper seat, and first taper seat can fit with the inner surface of conical cavity; Cylindrical top also offers many atomizing grooves that extend to the atomizing counterbore from described first taper seat, and it is logical to be connected with each other between described aquaporin excessively, atomizing groove and the apopore.
As a preferred version of the present invention, the end face of nozzle caves inward and forms second taper seat, and the osculum end and the apopore of this second taper seat join, described cylinder chamber, conical cavity, apopore and the coaxial setting of second taper seat.
Preferably, described atomizing counterbore can be the hole of parabolic shape for cylindrical hole, round taper hole or bottom.
Preferably, the degree of depth of described atomizing counterbore account for the atomizing core height 1/6～1/3, the atomizing counterbore opening diameter account for 2/5 ~ 3/5 of cylindrical diameter.
Preferably, the degree of depth of described atomizing groove account for the atomizing counterbore the degree of depth 1/3 ~ 2/3, the atomizing groove width account for the atomizing counterbore opening diameter 1/8 ~ 1/3.
Preferably, in the floor projection of atomizing groove, the horizontal-extending direction of atomizing groove departs from the angle of RADIAL direction of the groove that atomizes between 15 ° ~ 30 °.
Preferably, in the vertical direction, the atomizing groove departs from the angle of cylindrical direction of axis line between 0 ° ~ 15 °.
Preferably, described atomizing groove has 2 ~ 8, and the atomizing groove evenly distributes along circumferential on cylindrical top.
According to further embodiment of the present invention, described temperature-sensitive mechanism also comprises and is fixedly installed on the nozzle boss upper end and the top has the fixed support that tightens bolt, described temperature-sensing element comprises and vertically is arranged in the nozzle boss and an end is blocked the support member of water inlet, and an end and the temperature-sensitive glass column that tightens that bolt offsets, the other end and support member offset, this temperature-sensitive glass column is fragmentation automatically when temperature postcritical temperature; Described shower nozzle also comprises the lower end that is arranged at nozzle boss and is positioned at the screen pack of support member below and the packing ring that pad places the screen pack below.In addition, a plurality of connecting holes have circumferentially evenly been laid in nozzle boss sidewall upper edge, and nozzle is to stretch in the connecting hole to be threaded mutually with nozzle boss.
Because the enforcement of above technical scheme, the present invention compared with prior art has following advantage:
Closed-type high-pressure water mist shower nozzle of the present invention can spray when putting out a fire that fogdrop diameter is little, droplet is evenly distributed fine and closely woven thin water smoke, spray angle is wide, good extinguishing effect, simultaneously of the present invention simple in structure, cost of manufacture is also low.
Description of drawings
The present invention will be further described in detail below in conjunction with accompanying drawing and concrete embodiment:
Fig. 1 is the main cross-sectional schematic of shower nozzle of the present invention;
Fig. 2 is a nozzle sectional structure schematic diagram of the present invention;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the front view of atomizing core of the present invention;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the upward view of Fig. 4;
Fig. 7 is the side view of Fig. 4;
Fig. 8 is that the A-A of Fig. 7 is to cross-sectional schematic;
Fig. 9 is the cross-sectional schematic of atomizing core among the embodiment 2;
Figure 10 is the cross-sectional schematic of atomizing core among the embodiment 3;
Wherein: 1, nozzle boss; 10, water inlet; 11, cross aquaporin; 12, connecting hole; 2, nozzle; 20, apopore; 21, cylinder chamber; 22, conical cavity; 23, second taper seat; 3, atomizing core; 30, atomizing counterbore; 31, cylinder; 310, first taper seat; 32, connecting portion; 321, curved wall; 322, parallel side wall; 33, atomizing groove; 34, mounting groove; 4, temperature-sensitive glass column; 5, fixed support; 6, support member; 7, screen pack; 8, packing ring; 9, tighten bolt.
The specific embodiment
The present invention will be further described in detail below in conjunction with specific embodiment, but be not limited to these embodiment.
Embodiment 1
Referring to Fig. 1 to 8, closed-type high-pressure water mist shower nozzle according to present embodiment, comprise hollow spray headstock 1 with water inlet 10, be fixedly installed on nozzle 2 and atomizing core 3 on nozzle boss 1 sidewall, the sidewall of nozzle boss 1 is along circumferentially evenly having offered a plurality of connecting holes 12, nozzle 2 stretches in the connecting hole 12 and with nozzle boss 1 and is threaded mutually, and nozzle 2 is provided with the apopore 20 that can be connected with water inlet 10.Described shower nozzle also comprises temperature-sensitive mechanism, and this temperature-sensitive mechanism comprises that being fixedly installed on nozzle boss 1 upper end and top has fixed support 5 that tightens bolt 9 and the temperature-sensing element that is used to block water inlet 10; This temperature-sensing element is made of support member 6 and the temperature-sensitive glass column 4 that is arranged on support member 6 tops, wherein, support member 6 vertically is arranged in the nozzle boss 1 and water inlet 10 is blocked in its lower end, one end of temperature-sensitive glass column 4 with tighten that bolt 9 offsets, the other end offsets with the upper end of support member 6, this temperature-sensitive glass column 4 is fragmentation automatically when temperature postcritical temperature.In addition, the shower nozzle of present embodiment also comprises the lower end that is arranged at nozzle boss 1 and is positioned at the screen pack 7 of support member 6 belows and the packing ring 8 that pad places screen pack 7 belows.
According to present embodiment, be formed with the nozzle chamber that is connected with apopore 20 in the nozzle 2, nozzle chamber comprises cylinder chamber 21 and the conical cavity 22 that shrinks to the axis direction of cylinder chamber 21 gradually from the last circumference of cylinder chamber 21, and the osculum end and the apopore 20 of conical cavity 22 join;
Atomizing core 3 is arranged in the nozzle chamber, cylinder 31 is formed at the top of atomizing core 3, the connecting portion 32 that can be connected with nozzle 2 is formed at the bottom, connecting portion 32 has two curved walls 321 being oppositely arranged and two parallel side walls 322 adjacent with curved wall 321, in the present embodiment, have external screw thread on two curved walls 321, have the internal thread that matches with described external screw thread on the inwall of nozzle chamber, so connecting portion 32 is threaded with nozzle 2 mutually by two curved walls 321.In addition, formed aquaporin 11 between the inner surface of the outer wall of two parallel side walls 322, cylinder 31 and nozzle chamber; The bottom of connecting portion 32 also offers mounting groove 34, is convenient to screwdriver usefulness is installed.The top mid portion of cylinder 31 caves inward and forms an atomizing counterbore 30, and the tip edge of cylinder 31 partly forms first taper seat 310, and this first taper seat 310 can fit tightly mutually with the inner surface of the conical cavity 22 of nozzle 2; The top of cylinder 31 also offers many atomizing grooves 33 that extend to atomizing counterbore 30 from first taper seat 310, and it is logical to be connected with each other between aquaporin 11, atomizing groove 33 and the apopore 20 excessively.
According to present embodiment, the end face of nozzle 2 also has second taper seat 23 that caves inward and form, and the osculum end and the apopore 20 of this second taper seat 23 join, and coaxial setting between cylinder chamber 21, conical cavity 22, apopore 20 and second taper seat 23.The setting of second taper seat 23 makes apopore 20 outer air-flows form certain eddy current, helps the refinement again of water smoke and increases spreading of spray.
In the present embodiment, atomizing counterbore 30 is cylindrical, its degree of depth h
1
Account for the height h of atomizing core 3
0
1/6～1/3, opening diameter d
1
Account for the diameter d of cylinder 31
0
2/5 ~ 3/5.Atomizing groove 33 has 4, and atomizing groove 33 evenly distributes along circumferential on the top of cylinder 31.
In general, the degree of depth, width of atomizing groove 33 and atomizing groove 33 angle in the horizontal and vertical directions all can produce certain influence to atomizing effect, therefore need carry out test of many times to these parameters and grope and adjust to find out optimum range.Particularly, the degree of depth h of atomizing groove 33
2
Account for the degree of depth h of atomizing counterbore 30
1
1/3～2/3, width d
2
Account for the opening diameter d of atomizing counterbore 30
1
1/8 ~ 1/3 for well; In the floor projection of atomizing groove 33, the angle [alpha] of RADIAL direction that the horizontal-extending direction of atomizing groove 33 departs from the groove 33 that atomizes between 15 ° ~ 30 ° for well; In the vertical direction, the angle beta of the direction of axis line of atomizing groove 33 stray circle cylinders 31 between 0 ° ~ 15 ° for well.
In this specification, the degree of depth of atomizing groove 33 is meant notch to the vertical range of bottom land on vertical plane, and width is meant two vertical ranges of elongated slot limit on horizontal plane of groove.
The operation principle of the closed-type high-pressure water mist shower nozzle of present embodiment is: when temperature is under the normal temperature situation, when promptly not reaching the critical point temperature of temperature-sensitive glass column 4, support member 6 is blocked water inlet 10, and this moment, shower nozzle was in the idle state of enclosed sealing; In case breaking out of fire, when near the temperature the temperature-sensitive glass column 4 rise to critical point temperature above temperature-sensitive glass column 4, temperature-sensitive glass column 4 is broken automatically, support member 6 loses support and is separated with water inlet 10, pressure water source (high-pressure water) is pressed into the shower nozzle from water inlet 10, flow through successively nozzle chamber, cross aquaporin 11, atomizing groove 33, and after in atomizing counterbore 30 fierce collision and turbulent motion taking place, final ejection from the apopore 20 of nozzle 2, make shower nozzle be in the atomize of open type, shower nozzle can in time be brought into play fire-extinguishing function concurrently.
Pressure water is derived from water inlet 10 and flows into again in the process of apopore 20 ejections, multiple action through atomizing groove 33, atomizing counterbore 30 and second conical surface 23 etc., current through repeatedly collision, turn to and swirling motion, the thin water smoke droplet that the shower nozzle of feasible employing present embodiment ejects is evenly fine and closely woven, atomization angle is wide, particle diameter is small, the atomizing effect ideal, good extinguishing effect, the closed-type high-pressure water mist nozzle structure of present embodiment is simple simultaneously, and cost of manufacture is low.Along with national standard " fine water mist fire-extinguishing system and parts general technical specifications " is about to issuing and implementation, this atomizer will demonstrate the heal high actual application value and the wide market application foreground that heals.
Embodiment 2
As shown in Figure 9, the closed-type high-pressure water mist shower nozzle of present embodiment and the difference of embodiment 1 counterbore 30 that is to atomize is conical, and other structure and parameters are identical with embodiment's 1.The shower nozzle of present embodiment can reach the spray effect of embodiment 1 equally.
Embodiment 3
As shown in figure 10, the closed-type high-pressure water mist shower nozzle of present embodiment and the difference of embodiment 1 counterbore 30 that is to atomize is holes that the bottom surface is parabolic shape, and other structure and parameters are identical with embodiment's 1.The shower nozzle of present embodiment can reach the spray effect of embodiment 1 equally.
More than the present invention has been done detailed description; its purpose is to allow the personage that is familiar with this art can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences of doing according to spiritual essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention
Claims (10)
1.
A kind of closed-type high-pressure water mist shower nozzle, comprise have water inlet (10) hollow spray headstock (1), be fixedly installed on described nozzle boss (1) sidewall nozzle (2) and the atomizing core (3), described nozzle (2) is provided with the apopore (20) that can be connected with described water inlet (10); Described shower nozzle also comprises temperature-sensitive mechanism, and temperature-sensitive mechanism comprises that one is used to block the temperature-sensing element of described water inlet (10), and this temperature-sensing element can break away from described water inlet (10) above under the temperature of its critical point, it is characterized in that:
Be formed with the nozzle chamber that is connected with described apopore (20) in the described nozzle (2), described nozzle chamber comprises cylinder chamber (21) and the conical cavity (22) that shrinks to the axis direction of described cylinder chamber (21) gradually from the last circumference of described cylinder chamber (21), and the osculum end of described conical cavity (22) and described apopore (20) join;
Described atomizing core (3) is arranged in the described nozzle chamber, cylinder (31) is formed at the top of described atomizing core (3), the connecting portion (32) that can be connected with described nozzle (2) is formed at the bottom, described connecting portion (32) has two curved walls (321) that are oppositely arranged and two parallel side walls (322) adjacent with described curved wall (321), described two parallel side walls (322), formed aquaporin (11) between the outer wall of described cylinder (31) and the inner surface of described nozzle chamber, the bottom of described connecting portion (32) offers mounting groove (34); The top mid portion of described cylinder (31) caves inward and forms an atomizing counterbore (30), the tip edge of described cylinder (31) partly forms first taper seat (310), and described first taper seat (310) can fit with the inner surface of described conical cavity (22); The top of described cylinder (31) also offers many atomizing grooves (33) that extend to described atomizing counterbore (30) from described first taper seat (310), and described aquaporin (11), atomizing groove (33) and the described apopore (20) crossed is connected with each other logical.
2.
Closed-type high-pressure water mist shower nozzle according to claim 1, it is characterized in that: the end face of described nozzle (2) caves inward and forms second taper seat (23), the osculum end of this second taper seat (23) and described apopore (20) join, described cylinder chamber (21), conical cavity (22), apopore (20) and the coaxial setting of second taper seat (23).
3.
Closed-type high-pressure water mist shower nozzle according to claim 1 is characterized in that: described atomizing counterbore (30) is that cylindrical hole, round taper hole or bottom are the hole of parabolic shape.
4.
According to claim 1 or 3 described closed-type high-pressure water mist shower nozzles, it is characterized in that: the degree of depth h of described atomizing counterbore (30) 1 Account for the height h of described atomizing core (3) 0 1/6～1/3, the opening diameter d of described atomizing counterbore (30) 1 Account for the diameter d of described cylinder (31) 0 2/5 ~ 3/5.
5.
Closed-type high-pressure water mist shower nozzle according to claim 4 is characterized in that: the degree of depth h of described atomizing groove (33) 2 Account for the degree of depth h of described atomizing counterbore (30) 1 1/3 ~ 2/3, the atomizing groove (33) width d 2 Account for the opening diameter d of described atomizing counterbore (30) 1 1/8 ~ 1/3.
6.
Closed-type high-pressure water mist shower nozzle according to claim 1, it is characterized in that: in the floor projection of described atomizing groove (33), the horizontal-extending direction of atomizing groove (33) departs from the angle [alpha] of RADIAL direction of atomizing groove (33) between 15 ° ~ 30 °.
7.
Closed-type high-pressure water mist shower nozzle according to claim 1 is characterized in that: in the vertical direction, described atomizing groove (33) depart from the angle beta of direction of axis line of described cylinder (31) between 0 ° ~ 15 °.
8.
Closed-type high-pressure water mist shower nozzle according to claim 1 is characterized in that: described atomizing groove (33) has 2 ~ 8, and atomizing groove (33) evenly distributes along circumferential on the top of cylinder (31).
9.
Closed-type high-pressure water mist shower nozzle according to claim 1, it is characterized in that: described temperature-sensitive mechanism also comprises and is fixedly installed on described nozzle boss (1) upper end and the top has the fixed support (5) that tightens bolt (9), described temperature-sensing element comprises and vertically is arranged in the described nozzle boss (1) and an end is blocked the support member (6) of described water inlet (10), and one end and the described bolt (9) that tightens offset, the temperature-sensitive glass column (4) that the other end and described support member (6) offset, described temperature-sensitive glass column (4) can be broken automatically when temperature postcritical temperature; Described shower nozzle also comprises the lower end that is arranged at described nozzle boss (1) and is positioned at the screen pack (7) of described support member (6) below and the packing ring (8) that pad places described screen pack (7) below.
10.
Closed-type high-pressure water mist shower nozzle according to claim 1, it is characterized in that: a plurality of connecting holes (12) have circumferentially evenly been laid in described nozzle boss (1) sidewall upper edge, and described nozzle (2) stretches in the described connecting hole (12) and with described nozzle boss (1) and is threaded mutually
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202817 CN102247676B (en) | 2011-07-20 | 2011-07-20 | Closed type high-pressure water mist spray nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202817 CN102247676B (en) | 2011-07-20 | 2011-07-20 | Closed type high-pressure water mist spray nozzle |
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| CN102247676A true CN102247676A (en) | 2011-11-23 |
| CN102247676B CN102247676B (en) | 2013-01-02 |
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|---|---|---|---|
| CN 201110202817 Active CN102247676B (en) | 2011-07-20 | 2011-07-20 | Closed type high-pressure water mist spray nozzle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103329842A (en) * | 2013-07-23 | 2013-10-02 | 江苏森森水族用品有限公司 | Watering device for fish tank |
| CN103816635A (en) * | 2013-11-29 | 2014-05-28 | 闫宏 | Porous spray nozzle of superfine dry powder and eruptively-generated aerosol fire extinguishing system |
| CN104225850A (en) * | 2014-09-18 | 2014-12-24 | 广州中国科学院工业技术研究院 | Water mist nozzle, water mist fire extinguishing device and water mist spraying method |
| CN108914364A (en) * | 2018-07-12 | 2018-11-30 | 伊婕 | A kind of knitting machine waste material collection device |
| CN113521627A (en) * | 2021-07-22 | 2021-10-22 | 联捷(南通)智能科技有限公司 | Closed high-pressure uniform injection nozzle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103329842A (en) * | 2013-07-23 | 2013-10-02 | 江苏森森水族用品有限公司 | Watering device for fish tank |
| CN103816635A (en) * | 2013-11-29 | 2014-05-28 | 闫宏 | Porous spray nozzle of superfine dry powder and eruptively-generated aerosol fire extinguishing system |
| CN104225850A (en) * | 2014-09-18 | 2014-12-24 | 广州中国科学院工业技术研究院 | Water mist nozzle, water mist fire extinguishing device and water mist spraying method |
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| CN113521627A (en) * | 2021-07-22 | 2021-10-22 | 联捷(南通)智能科技有限公司 | Closed high-pressure uniform injection nozzle |
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|---|---|
| CN102247676B (en) | 2013-01-02 |
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