CN208641599U - Duplex screw machine is pumped into formula foam proportioning unit - Google Patents
Duplex screw machine is pumped into formula foam proportioning unit Download PDFInfo
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- CN208641599U CN208641599U CN201721034771.8U CN201721034771U CN208641599U CN 208641599 U CN208641599 U CN 208641599U CN 201721034771 U CN201721034771 U CN 201721034771U CN 208641599 U CN208641599 U CN 208641599U
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Abstract
A kind of duplex screw machine is pumped into formula foam proportioning unit, fire-fighting water inlet and fire-fighting mixture export are provided on the side wall of shell, front and back is provided with driving shaft and driven shaft in shell, enclosure interior is divided into front cavity and rear chamber by internal partition, spiral hydraulic drive mechanisms are provided on the intracorporal driving shaft of shell ante-chamber and driven shaft, spiral foam solution conveying mechanism is provided on the driving shaft and driven shaft of rear chamber in shell；The front port of shell is fixedly connected with preceding Double bearing support, and preceding shaft sealing mechanism, fore bearing mechanism and synchromesh gear mechanism is arranged inside；The rear port of shell is formed with foam solution import, and the rear port of shell is also fixedly connected with rear Double bearing support, and rear shaft sealing mechanism and rear bearing mechanism is arranged inside.The utility model is due to the combinations that the hydraulic turbine and foam pump are not 2 pumps, more compact structure, and volume is smaller.And while simplifying mechanical structure, power loss caused by mechanical friction is also reduced, efficiency is improved.
Description
Technical field
The utility model relates to a kind of foam proportioning units.It is revolved more particularly to one kind by the fire-fighting water-driven hydraulic turbine
Turn, drives the foam rotor operating on turbine shaft, normal pressure foam is pressurizeed, hydraulic turbine fire-fighting water out is transported to, according to one
The duplex screw machine that certainty ratio is mixed with fire water is pumped into formula foam proportioning unit.
Background technique
Foam proportioning unit is indispensable device in fire fighting device.Foam proportioning unit is main at present
There is following four generations product:
First generation product: the foam solution proportion mixer of negative pressure form.Fire water generates negative when passing through proportioner
The advantages of foam solution sucking is mixed to form foam mixing liquid with fire water by pressure, this foam proportioning unit is structure letter
It is single, low cost.Foam can also add, the disadvantage is that the inaccurate stabilization of foams mix ratio.
Second generation product: pressure type foam proportioning unit, foam solution are stored in the capsule of pressure vessel, a part
Fire water enters foam solution pressure vessel and squeezes out foam solution, is mixed to form foam solution by proportioner and fire water.This
The advantages of kind foam proportioning unit is that foams mix ratio is stablized than first generation product.The disadvantage is that foam solution can not add,
Concentrated tank is pressure vessel.
Third generation product: pressure balance type foam proportioning unit.Foam solution is stored in non-pressure vessel, and foam solution is logical
It crosses pump and is pressed and delivered to equilibrated valve, equilibrated valve passes through balance foam hydraulic coupling and fire fighting hydraulic pressure, it is ensured that can pass through
Equilibrated valve enters the foam hydraulic coupling and fire water pressure difference substantially constant of proportioner, and any excess foam liquid flows back into foam
Flow container.This foam solution proportion mixer advantage is that foam solution can add at any time, and foams mix ratio is more stable.It lacks
Point is that structure is more complicated than the second generation, and volume is big, and foam pump needs diesel engine, motor or hydraulic turbine driving, consumes certain energy.
Proportioner brings certain fire water pressure drop, simultaneously as equipment is more, failure rate is higher than the second generation.
Forth generation product: it includes the extraordinary hydraulic turbine, foam pump and shaft coupling three that machinery, which is pumped into formula foam proportioning unit,
Part forms.
The advantages that, system capacity utilization rate height compact with mechanism, high reliablity, foam solution can add at any time.System
When work, by the hydraulic turbine output rotation mechanical energy being mounted on fire water pipeline, foam pump, foam pump are driven by shaft coupling
By in the foam pressurization injection fire fighting supply pipeline in normal pressure foam tank, mixed with fire water.Suitable turbine parameter is set,
Correct foam pump is selected, foams mix ratio can be kept constant.The hydraulic turbine exports revolving speed and the fire water by the hydraulic turbine
Flow is directly proportional, and the output flow of foam pump and the revolving speed of foam pump are directly proportional, since hydraulic turbine main shaft and foam pump main shaft are same
Step rotation, also ensures that the ratio between the flow of foam solution and the flow of fire water are kept constant.
Currently, triformed machinery is pumped into formula fixed froth installation:
1. the vane type hydraulic turbine is connect with foam foam gear pump by shaft coupling, the vane type hydraulic turbine and foam gear pump peace
On a common base；
Vane type hydraulic turbine major defect is since fire water does not have lubricity, it is easy to scratch blade, cause the hydraulic turbine
It is stuck.It requires fire water clean simultaneously, cannot there is solid foreign materials.
Since the machinery of this kind of form is pumped into formula foam proportioning unit, the vane type hydraulic turbine and foam pump are placed on one
On a public prizing body, transmitting torque is connected by shaft coupling.Volume is larger.
2. the double-screw type hydraulic turbine is connect with foam three screw pump by shaft coupling, three spiral shell of the double-screw type hydraulic turbine and foam
Bar pump is mounted on a common base.
Currently, the double-screw type hydraulic turbine, drives driven screw rotation, when the hydraulic turbine works, active spiral shell using active spiral
Rotation drives driven spiral rotating, does not have synchromesh gear to transmit torque between active spiral and driven spiral, active spiral with it is driven
Abrasion can be generated between spiral, meanwhile, active spiral is also to have a contact between driven spiral and hydraulic turbine shell, spiral with
Also abrasion can be generated between shell, so, it is desirable that fire water is clean, cannot there is solid particle, and otherwise spiral water turbine can be ground
Damage is even stuck.
Since the machinery of this kind of form is pumped into formula foam proportioning unit, screw type water turbine and foam pump are placed on one
On a public prizing body, transmitting torque is connected by shaft coupling, volume is larger.
3. the hydro powered hydraulic turbine and foam pump are designed to an entirety, common base is not needed, volume is substantially reduced.Knot
Structure is more compact.Installation space is saved, manufacturing cost and use cost are reduced.
Summary of the invention
Technical problem to be solved by the utility model is to provide a kind of extension foam pump service lifes, allow foam solution
In contain certain solid particle, structure is simple, and volume is smaller, efficient duplex screw machine be pumped into formula froth ratio mixing dress
It sets.
The technical scheme adopted by the utility model is a kind of duplex screw machine is pumped into formula foam proportioning unit,
Including shell, it is symmetrically arranged with fire-fighting water inlet and fire-fighting mixture export on the side wall of the shell, in the shell
It is pre-and post perforative to be provided with driving shaft and driven shaft, in the shell by internal partition by enclosure interior be divided into it is described
Fire-fighting water inlet and the corresponding front cavity of fire-fighting mixture export and the rear chamber for pressurizeing to foam solution, described is interior
It is formed with two through holes that can extend through the driving shaft and driven shaft on partition, is located at the intracorporal active of shell ante-chamber
It is provided with spiral hydraulic drive mechanisms on axis and driven shaft, is provided with spiral shell on the driving shaft and driven shaft of rear chamber in shell
Foam solution conveying mechanism is revolved, the corresponding internal partition between the spiral hydraulic drive mechanisms and spiral foam solution conveying mechanism
It is provided with intermediate shaft sealing mechanism；The front port of the shell is fixedly connected with preceding Double bearing support, in the preceding Double bearing support by
Afterwards to being before disposed with preceding shaft sealing mechanism, be used to support driving shaft and the fore bearing mechanism of driven shaft front and be connected to institute
The synchromesh gear mechanism of driving shaft and driven shaft front end is stated, the front port of the preceding Double bearing support is provided with drive end bearing bracket；The shell
The rear port of body is formed with foam solution import, and the foam solution import passes sequentially through low-pressure foam channel, spiral foam solution
Conveying mechanism is connected to fire-fighting mixture export with high-pressure foam liquid channel, and the rear port of the shell is also fixedly connected with rear twin shaft
Seat is held, after being disposed with rear shaft sealing mechanism from front to back in the rear Double bearing support and be used to support driving shaft and driven shaft
The rear port of the rear bearing mechanism at end, the rear Double bearing support is provided with rear end cap.
The spiral hydraulic drive mechanisms include: to be connected on the driving shaft by one group of hydraulic turbine spiral bond structure
Hydraulic turbine active screw-casing, and the hydraulic turbine being connected to by another group of hydraulic turbine spiral bond structure on the driven shaft
Driven screw-casing is formed with the setting for preventing from mutually wearing between the hydraulic turbine active screw-casing and the driven screw-casing of the hydraulic turbine
Gap.
The spiral foam solution conveying mechanism includes: that the driving shaft is connected to by one group of foam spiral bond structure
On active foam spiral set, and the driven foam spiral shell being connected to by another group of foam spiral bond structure on the driven shaft
Rotation set is formed with the gap of setting between the active foam spiral set and driven foam spiral set.
The intermediate shaft sealing mechanism include: cover on the driving shaft the second main mechanical sealing and cover it is described from
On moving axis second from mechanical seal, and the second primary seal covered on the outside of second main mechanical sealing contains and covers described
Second second containing from sealing on the outside of mechanical seal, second primary seal contain and second from sealing containing passing through screw respectively
It is fixedly connected on the internal partition.
The preceding shaft sealing mechanism includes: to cover the first main mechanical sealing on the driving shaft and cover described driven
On axis first from mechanical seal, and the first primary seal for covering on the outside of first main mechanical sealing contains and covers described the
One first containing from sealing on the outside of mechanical seal, first primary seal contain and first from sealing containing solid by screw respectively
Surely it is connected on the preceding Double bearing support.
The fore bearing mechanism includes: to be used to support the first base bearing of the driving shaft front and be used to support described
The first of driven shaft front from bearing, first base bearing and first from bearing respectively correspond by main shaft pressure cap and from
Bearing gland is fixed in the preceding Double bearing support.
First base bearing and first uses rolling bearing from bearing.
The synchromesh gear mechanism includes: to be fixedly connected on the driving shaft front end by one group of synchromesh gear bond structure
On main synchromesh gear, and by another group of synchromesh gear bond structure be fixedly connected on the driven shaft front end from synchronization
Gear, the main synchromesh gear and respectively corresponds through master gear gland from synchromesh gear and is fixedly connected on from gear gland
On the front end of the driving shaft and driven shaft, the main synchromesh gear and from synchromesh gear be intermeshing connection.
The rear shaft sealing mechanism includes: to cover the main foam seal circle on the driving shaft and cover in the driven shaft
On slave foam seal circle, and the third primary seal that covers on the outside of the main foam seal circle contain and cover it is close from foam described
Third on the outside of seal contains from sealing, and the third primary seal contains to contain with third from sealing to be fixed by screws in institute respectively
It states on rear Double bearing support.
The rear bearing mechanism includes: to be used to support the second base bearing of the active shaft rear end and be used to support described
From bearing, second base bearing and second passes through the rear end cap from bearing and is fixed on institute the second of driven shaft rear end
In the rear Double bearing support stated.
The duplex screw machine of the utility model is pumped into formula foam proportioning unit, since the hydraulic turbine is not with foam pump
The combination of 2 pumps, bearing support point and seal point, synchromesh gear reduction half, more compact structure, volume are smaller.And in letter
While changing mechanical structure, power loss caused by mechanical friction is also reduced, efficiency is improved.What system will consume less disappears
Waterproofing pressure.To foam solution, the requirement of fire water cleannes is low, allows to contain in foam solution and fire water a small amount of solid particle, bubble
Foam liquid can be added arbitrarily, it is ensured that the duration of fire-fighting.Foam solution mixed proportion is stablized.The hydraulic turbine in the utility model is actively
The gap kept constant between screw-casing and the driven screw-casing of the hydraulic turbine, and hydraulic turbine active screw-casing and the driven spiral shell of the hydraulic turbine
Preset clearance is very small between rotation set, and volumetric efficiency is high.
The gap kept constant between hydraulic turbine active screw-casing and the driven screw-casing of the hydraulic turbine in the utility model, fire-fighting
When water is by hydraulic turbine active screw-casing and the hydraulic turbine driven screw-casing, the torque of generation is by main synchromesh gear and from synchronous gear
Wheel avoids hydraulic turbine active screw-casing and the hydraulic turbine driven screw-casing is driven to generate abrasion, while the hydraulic turbine when rotating to transmit
Active screw-casing and the driven screw-casing of the hydraulic turbine use roller bearings, hydraulic turbine active screw-casing and the driven spiral of the hydraulic turbine
Between set, it is not in contact with each other between hydraulic turbine active screw-casing and the driven screw-casing of the hydraulic turbine and shell, also avoids water wheels owner
Abrasion between dynamic screw-casing and the driven screw-casing of the hydraulic turbine and shell, extends hydraulic turbine active screw-casing and the hydraulic turbine is driven
The service life of screw-casing, meanwhile, allow to contain certain solid particle in fire water.
The hydraulic turbine active screw-casing of foam active screw-casing and hydro powered that foam solution is conveyed in the utility model is pacified
On same root driving shaft；It is driven that the driven screw-casing of foam and the driven screw-casing of the hydraulic turbine of hydro powered are mounted on same root
On axis.Torque when foam active screw-casing and the driven screw-casing of foam rotate passes through the synchromesh gear on driving shaft and driven shaft
To transmit.
Between foam active screw-casing and the driven screw-casing of foam, foam active screw-casing and the driven screw-casing of foam and pump
It is not in contact with each other between shell, does not wear, also do not need foam solution lubrication, allow to contain certain small solid in foam solution
Grain, it is safe and reliable to operation, meanwhile, it is designed type selecting according to certain volumetric ratio, it is accurate with foam solution to can be realized fire water
Mixed proportion.
Detailed description of the invention
Fig. 1 is the overall structure diagram that the utility model duplex screw machine is pumped into formula foam proportioning unit；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the A-A cross-sectional view of Fig. 1；
Fig. 4 is the B-B cross-sectional view of Fig. 1.
In figure
1: the 2a: the second base bearing of rear end cap
2b: the second from bearing 3a: third primary seal contains
3b: third is from sealing containing 4: rear Double bearing support
5a: main foam seal circle 5b: from foam seal circle
6: high-pressure foam liquid channel 7: active foam spiral set
8: the 9a: the second primary seal of internal partition contains
9b: the second from sealing contain 10: shell
11: driving shaft 12: hydraulic turbine active screw-casing
13: hydraulic turbine spiral the 14a: the first primary seal of bond structure contains
14b: the first seals from sealing containing the 15a: the first main mechanical
15b: the first from the 16a: the first base bearing of mechanical seal
16b: the first from bearing 17a: main shaft pressure cap
17b: from bearing gland 18: synchromesh gear bond structure
19a: main synchromesh gear 19b: from synchromesh gear
20: drive end bearing bracket 21a: master gear gland
21b: from gear gland 22；Foam spiral bond structure
23: driven foam spiral covers the sealing of the 24a: the second main mechanical
24b: the second from mechanical seal 25: foam solution import
26: the driven screw-casing 27 of the hydraulic turbine: low-pressure foam channel
28: driven shaft 29: preceding Double bearing support
30: fire-fighting water inlet 31: fire-fighting mixture export
Specific embodiment
Formula foam proportioning unit is pumped into below with reference to duplex screw machine of the embodiment and attached drawing to the utility model
It is described in detail.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of duplex screw machine of the utility model is pumped into the mixing of formula froth ratio
Device, including shell 10 are symmetrically arranged with fire-fighting water inlet 30 and fire-fighting mixture export 31 on the side wall of the shell 10,
Pre-and post perforative in the shell 10 to be provided with driving shaft 11 and driven shaft 28, passing through internal partition 8 in the shell 10 will
It is divided into front cavity corresponding with the fire-fighting water inlet 30 and fire-fighting mixture export 31 inside shell 10 and is used for
To the rear chamber of foam solution pressurization, the driving shaft 11 and driven shaft 28 can be extended through by being formed on the internal partition 8
Two through holes, be provided with spiral hydraulic drive mechanisms on the intracorporal driving shaft 11 of 10 ante-chamber of shell and driven shaft 28,
Spiral foam solution conveying mechanism, the spiral waterpower are provided on the driving shaft 11 and driven shaft 28 of rear chamber in shell 10
The corresponding internal partition 8 is provided with intermediate shaft sealing mechanism between driving mechanism and spiral foam solution conveying mechanism；The shell
The front port of body 10 is fixedly connected with preceding Double bearing support 29, and it is close to be disposed with front axle from back to front in the preceding Double bearing support 29
Sealing mechanism, the fore bearing mechanism for being used to support 28 front of driving shaft 11 and driven shaft and it is connected to the driving shaft 11 and driven shaft
The front port of the synchromesh gear mechanism of 28 front ends, the preceding Double bearing support 29 is provided with drive end bearing bracket 20；The rear end of the shell 10
Mouth is formed with foam solution import 25, and it is defeated that the foam solution import 25 passes sequentially through low-pressure foam channel 27, spiral foam solution
Mechanism is sent to be connected to fire-fighting mixture export 31 with high-pressure foam liquid channel 6, after the rear port of the shell 10 is also fixedly connected with
Double bearing support 4 is disposed with rear shaft sealing mechanism in Double bearing support 4 from front to back and is used to support 11 He of driving shaft after described
The rear port of the rear bearing mechanism of 28 rear end of driven shaft, the rear Double bearing support 4 is provided with rear end cap 1.
The duplex screw machine of the utility model is pumped into formula foam proportioning unit, and the spiral waterpower of hydro powered is driven
Motivation structure is corresponding with spiral foam solution conveying mechanism on same axis, and spiral hydraulic drive mechanisms and spiral foam solution convey
Normal pressure foam solution is pressurizeed and is delivered to hydraulic turbine fire-fighting water out by mechanism synchronous rotary, and foam solution and fire water are according to certain
Ratio is mixed.Separated between spiral hydraulic drive mechanisms and spiral foam solution conveying mechanism by pump chamber internal partition, and is showed
Some machinery are pumped into the difference of formula foam proportioning unit and are that duplex screw machine, which is pumped into formula foam proportioning unit, is not
Simply using 2 pumps to be combined, (pump makees the hydraulic turbine, and in addition one is used as foam pump, or is fixed on together by shaft coupling
On one pedestal, or 2 pumps are integrally formed structure).
The spiral hydraulic drive mechanisms include: to be connected to the driving shaft by one group of hydraulic turbine spiral bond structure 13
Hydraulic turbine active screw-casing 12 on 11, and the driven shaft 28 is connected to by another group of hydraulic turbine spiral bond structure 13
On the driven screw-casing 26 of the hydraulic turbine, be formed between the hydraulic turbine active screw-casing 12 and the driven screw-casing 26 of the hydraulic turbine anti-
The gap for the setting only mutually worn.
The gap kept constant between hydraulic turbine active screw-casing and the driven screw-casing of the hydraulic turbine in the utility model, fire-fighting
When water is by hydraulic turbine active screw-casing and the hydraulic turbine driven screw-casing, the torque of generation is by main synchromesh gear and from synchronous gear
Wheel avoids hydraulic turbine active screw-casing and the hydraulic turbine driven screw-casing is driven to generate abrasion, while the hydraulic turbine when rotating to transmit
Active screw-casing and the driven screw-casing of the hydraulic turbine use roller bearings, hydraulic turbine active screw-casing and the driven spiral of the hydraulic turbine
It is not in contact with each other between set and shell, also avoids the mill between hydraulic turbine active screw-casing and the driven screw-casing of the hydraulic turbine and shell
Damage, extends the service life of hydraulic turbine active screw-casing and the driven screw-casing of the hydraulic turbine, meanwhile, allow to contain one in fire water
Fixed solid particle.
The spiral foam solution conveying mechanism includes: that the active is connected to by one group of foam spiral bond structure 22
Active foam spiral set 7 on axis 11, and be connected on the driven shaft 28 by another group of foam spiral bond structure 22
Driven foam spiral set 23, is formed with the gap of setting between the active foam spiral set 7 and driven foam spiral set 23.
The active foam spiral set that foam solution is conveyed in the utility model is installed with hydro powered hydraulic turbine active screw-casing
On same root driving shaft；Driven foam spiral set is mounted on same root driven shaft with the driven screw-casing of the hydro powered hydraulic turbine
On.Active foam spiral set with driven foam spiral set rotate when torque by the synchromesh gear on driving shaft and driven shaft come
Transmitting.Between active foam spiral set and driven foam spiral set, active foam spiral covers and driven foam spiral covers and pump case
Between be not in contact with each other, do not wear, do not need yet foam solution lubrication, allow foam solution in contain certain minute solid particles,
It is safe and reliable to operation, meanwhile, it is designed type selecting according to certain volumetric ratio, fire water is can be realized and is accurately mixed with foam solution
Composition and division in a proportion example.
The intermediate shaft sealing mechanism includes: to cover the second main mechanical sealing 24a on the driving shaft 11 and cover
On the driven shaft 28 second from mechanical seal 24b, and the second master covered on the outside of second main mechanical sealing 24a is close
Seal containing 9a and cover described second on the outside of mechanical seal 24b second from sealing containing 9b, second primary seal containing 9a and
Second is fixed by screws on the internal partition 8 from sealing containing 9b respectively.
The preceding shaft sealing mechanism includes: to cover the first main mechanical sealing 15a on the driving shaft 11 and cover in institute
First on driven shaft 28 is stated from mechanical seal 15b, and covers the first primary seal on the outside of first main mechanical sealing 15a
Containing 14a and cover described first on the outside of mechanical seal 15b first from sealing containing 14b, first primary seal containing 14a and
First is fixed by screws on the preceding Double bearing support 29 from sealing containing 14b respectively.
The fore bearing mechanism includes: to be used to support the first base bearing 16a of 11 front of driving shaft and for branch
Support 28 front of driven shaft first respectively corresponds from bearing 16b, the first base bearing 16a and first from bearing 16b
It is fixed in the preceding Double bearing support 29 by main shaft pressure cap 17a and from bearing gland 17b.
The first base bearing 16a and first uses rolling bearing from bearing 16b.
The synchromesh gear mechanism includes: to be fixedly connected on the driving shaft 11 by one group of synchromesh gear bond structure 18
Main synchromesh gear 19a on front end, and before being fixedly connected on the driven shaft 28 by another group of synchromesh gear bond structure 18
It slave synchromesh gear 19b on end, the main synchromesh gear 19a and respectively corresponds from synchromesh gear 19b through master gear gland
21a and from the front end that gear gland 21b is fixedly connected on the driving shaft 11 and driven shaft 28, the main synchromesh gear 19a
It is connected with from synchromesh gear 19b for intermeshing.
The rear shaft sealing mechanism include: cover main foam seal circle 5a on the driving shaft 11 and cover it is described from
Slave foam seal circle 5b on moving axis 28, and the third primary seal covered on the outside of the main foam seal circle 5a contain 3a and cover
The third on the outside of foam seal circle 5b contains 3b from sealing, and the third primary seal is distinguished from sealing containing 3b containing 3a and third
It is fixed by screws on the rear Double bearing support 4.
Rear bearing mechanism include: be used to support the second base bearing 2a of 11 rear end of driving shaft and be used to support it is described from
The second of 28 rear end of moving axis passes through the rear end cap 1 from bearing 2b from bearing 2b, the second base bearing 2a and second
It is fixed in the rear Double bearing support 4.
The working principle that a kind of duplex screw machine of the utility model is pumped into formula foam proportioning unit is: fire water
Entered in hydraulic turbine shell 10 by fire-fighting water inlet 30, on the hydraulic turbine active screw-casing 12 and driven shaft 28 on driving shaft 11
The driven screw-casing 26 of the hydraulic turbine forms seal chamber with shell 10.
Hydraulic turbine active screw-casing 12 on driving shaft 11 and the driven screw-casing 26 of the hydraulic turbine on driven shaft 28, in high pressure
Fire water is rotated by, and drives the slave synchronous gear on the main synchromesh gear 19a and driven shaft 28 on hydraulic turbine driving shaft 11
Take turns 19b synchronous rotary.
Driven foam spiral set 23 on 28 on active foam spiral set 7 and driven shaft on driving shaft 11 is in main synchronous gear
It takes turns 19a and is rotated under the drive of synchromesh gear 19b.Normal pressure foam solution is sucked into pump chamber from concentrated tank, is steeped by active
23 pressurization of foam screw-casing 7 and driven foam spiral set, is transported to fire-fighting mixture export 31, mixes with fire water, formation meets
The foam mixing liquid of fire-fighting requirements carries out fire-fighting fire extinguishing operation.
Claims (7)
1. a kind of duplex screw machine is pumped into formula foam proportioning unit, including shell (10), the side wall of the shell (10)
On be symmetrically arranged with fire-fighting water inlet (30) and fire-fighting mixture export (31), it is pre-and post perforative in the shell (10) to set
It is equipped with driving shaft (11) and driven shaft (28), which is characterized in that pass through internal partition (8) in the shell (10) for shell (10)
Inside be divided into front cavity corresponding with the fire-fighting water inlet (30) and fire-fighting mixture export (31) and for pair
The rear chamber of foam solution pressurization, the driving shaft (11) and driven shaft can be extended through by being formed on the internal partition (8)
(28) two through holes are located on the intracorporal driving shaft of shell (10) ante-chamber (11) and driven shaft (28) and are provided with spiral waterpower
Driving mechanism is located on the driving shaft (11) and driven shaft (28) of shell (10) interior rear chamber and is provided with spiral foam solution conveyer
Structure, the corresponding internal partition (8) is provided with centre between the spiral hydraulic drive mechanisms and spiral foam solution conveying mechanism
Shaft sealing mechanism；The front port of the shell (10) is fixedly connected with preceding Double bearing support (29), in the preceding Double bearing support (29)
It is disposed with preceding shaft sealing mechanism from back to front, is used to support driving shaft (11) and the fore bearing mechanism of driven shaft (28) front
With the synchromesh gear mechanism for being connected to the driving shaft (11) and driven shaft (28) front end, the front end of the preceding Double bearing support (29)
Mouth is provided with drive end bearing bracket (20)；The rear port of the shell (10) is formed with foam solution import (25), the foam solution into
Mouth (25) passes sequentially through low-pressure foam channel (27), spiral foam solution conveying mechanism and is connected to fire-fighting with high-pressure foam liquid channel (6)
The rear port of mixture export (31), the shell (10) is also fixedly connected with rear Double bearing support (4), the rear Double bearing support
(4) rear shaft sealing mechanism is disposed in from front to back and is used to support the rear axle of driving shaft (11) and driven shaft (28) rear end
Mechanism is held, the rear port of the rear Double bearing support (4) is provided with rear end cap (1)；
The spiral hydraulic drive mechanisms include: to be connected to the driving shaft by one group of hydraulic turbine spiral bond structure (13)
(11) hydraulic turbine active screw-casing (12) on, and by another group of hydraulic turbine spiral bond structure (13) be connected to it is described from
The driven screw-casing of the hydraulic turbine (26) on moving axis (28), the hydraulic turbine active screw-casing (12) and the driven screw-casing of the hydraulic turbine
(26) gap for the setting for preventing from mutually wearing is formed between；
The spiral foam solution conveying mechanism includes: that the driving shaft is connected to by one group of foam spiral bond structure (22)
(11) the active foam spiral set (7) on, and the driven shaft is connected to by another group of foam spiral bond structure (22)
(28) the driven foam spiral set (23) on, forms between the active foam spiral set (7) and driven foam spiral set (23)
There is the gap of setting；
The intermediate shaft sealing mechanism includes: to cover the second main mechanical sealing (24a) on the driving shaft (11) and cover
On the driven shaft (28) second from mechanical seal (24b), and cover on the outside of second main mechanical sealing (24a) the
Two primary seals are containing (9a) and cover described second and second to contain (9b) from sealing on the outside of mechanical seal (24b), and described second
Primary seal is fixed by screws on the internal partition (8) from sealing containing (9b) respectively containing (9a) and second.
2. duplex screw machine according to claim 1 is pumped into formula foam proportioning unit, which is characterized in that described
Preceding shaft sealing mechanism includes: to cover the first main mechanical sealing (15a) on the driving shaft (11) and cover in the driven shaft
(28) on first from mechanical seal (15b), and the first primary seal covered on the outside of first main mechanical sealing (15a) contains
(14a) and cover described first on the outside of mechanical seal (15b) first from sealing containing (14b), first primary seal contains
(14a) and first is fixed by screws on the preceding Double bearing support (29) from sealing containing (14b) respectively.
3. duplex screw machine according to claim 1 is pumped into formula foam proportioning unit, which is characterized in that described
Fore bearing mechanism includes: to be used to support first base bearing (16a) of the driving shaft (11) front and be used to support described driven
The first of axis (28) front from bearing (16b), first base bearing (16a) and first respectively corresponded from bearing (16b) it is logical
It crosses main shaft pressure cap (17a) and is fixed in the preceding Double bearing support (29) from bearing gland (17b).
4. duplex screw machine according to claim 3 is pumped into formula foam proportioning unit, which is characterized in that described
First base bearing (16a) and first uses rolling bearing from bearing (16b).
5. duplex screw machine according to claim 1 is pumped into formula foam proportioning unit, which is characterized in that described
Synchromesh gear mechanism includes: the master being fixedly connected on the driving shaft (11) front end by one group of synchromesh gear bond structure (18)
Synchromesh gear (19a), and be fixedly connected on the driven shaft (28) front end by another group of synchromesh gear bond structure (18)
Slave synchromesh gear (19b), the main synchromesh gear (19a) and respectively correspond from synchromesh gear (19b) through master gear pressure
It covers (21a) and from the front end that gear gland (21b) is fixedly connected on the driving shaft (11) and driven shaft (28), the master is same
It walks gear (19a) and is connected from synchromesh gear (19b) for intermeshing.
6. duplex screw machine according to claim 1 is pumped into formula foam proportioning unit, which is characterized in that described
Shaft sealing mechanism includes: to cover the main foam seal circle (5a) on the driving shaft (11) and cover on the driven shaft (28) afterwards
Slave foam seal circle (5b), and cover third primary seal on the outside of the main foam seal circle (5a) containing (3a) and cover in institute
It states from the third on the outside of foam seal circle (5b) from sealing containing (3b), the third primary seal contains containing (3a) and third from sealing
(3b) is fixed by screws respectively on the rear Double bearing support (4).
7. duplex screw machine according to claim 1 is pumped into formula foam proportioning unit, which is characterized in that described
Rear bearing mechanism includes: to be used to support second base bearing (2a) of the driving shaft (11) rear end and be used to support the driven shaft
(28) the second of rear end passes through the rear end from bearing (2b) from bearing (2b), second base bearing (2a) and second
Lid (1) is fixed in the rear Double bearing support (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034771.8U CN208641599U (en) | 2017-08-17 | 2017-08-17 | Duplex screw machine is pumped into formula foam proportioning unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034771.8U CN208641599U (en) | 2017-08-17 | 2017-08-17 | Duplex screw machine is pumped into formula foam proportioning unit |
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| Publication Number | Publication Date |
|---|---|
| CN208641599U true CN208641599U (en) | 2019-03-26 |
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ID=65769121
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721034771.8U Expired - Fee Related CN208641599U (en) | 2017-08-17 | 2017-08-17 | Duplex screw machine is pumped into formula foam proportioning unit |
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| Country | Link |
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| CN (1) | CN208641599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336059A (en) * | 2020-04-15 | 2020-06-26 | 安徽世纪凯旋消防科技有限公司 | Environment-friendly hydroenergy driver applied to foam mixing pump |
-
2017
- 2017-08-17 CN CN201721034771.8U patent/CN208641599U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336059A (en) * | 2020-04-15 | 2020-06-26 | 安徽世纪凯旋消防科技有限公司 | Environment-friendly hydroenergy driver applied to foam mixing pump |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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