CN202560575U - Electric emergency fire pump - Google Patents
Electric emergency fire pump Download PDFInfo
- Publication number
- CN202560575U CN202560575U CN2012202474456U CN201220247445U CN202560575U CN 202560575 U CN202560575 U CN 202560575U CN 2012202474456 U CN2012202474456 U CN 2012202474456U CN 201220247445 U CN201220247445 U CN 201220247445U CN 202560575 U CN202560575 U CN 202560575U
- Authority
- CN
- China
- Prior art keywords
- pump
- water
- emergency fire
- valves
- vacuum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to an electric emergency fire pump. The electric emergency fire pump comprises an electric motor, the bottom of the electric motor is connected with an emergency fire pump through a connecting frame, and a drive shaft of the electric motor is located in the connecting frame and connected with a shaft through a first shaft connecting unit and a second shaft connecting unit. A water ring vacuum pump is arranged below the emergency fire pump. After penetrating through a bearing body in the connecting frame, the shaft is sequentially connected with an impeller and a vacuum impeller, wherein the impeller is arranged in a pump body of the emergency fire pump, and the vacuum impeller is arranged in a pump body of the water ring vacuum pump. The electric emergency fire pump has a reasonable structure, the same shaft is utilized in the vacuum impeller of the water ring vacuum pump and the impeller of the electric emergency fire pump, power consumed by the vacuum impeller is quite low relative to the impeller, and although the vacuum impeller still rotates like the impeller of the electric emergency fire pump after air exhaust is finished, the power consumed by the vacuum impeller can be neglected; and since water can circulate inside the electric emergency fire pump, the vacuum impeller cannot wear.
Description
Technical field
The utility model relates to fire-protection equipment peculiar to vessel, is a kind of electric emergency fire water pump specifically.Especially refer to electric emergency fire water pump peculiar to vessel.
Background technique
Emergency fire pump is related to the life safety of boats and ships as subsidiary engine equipment important on the ship, and its effect is irreplaceable.Emergency fire pump peculiar to vessel is except reaching essential discharge capacity and pressure head, and of paramount importance is to possess good self-absorption function, promptly has to bleed fast and degassing function and higher self-priming height.
From the kind of pump, at first must be centrifugal pump rather than displacement pump as emergency fire pump peculiar to vessel.Because if displacement pump (like screw pump and gear pump), because its (one) cost is very high; (2) medium of carrying must have as the good lubricity of having of lubricant oil.Therefore displacement pump generally is not use as emergency fire pump.As everyone knows, Ordinary Centrifugal Pumps is not possess self-absorption function, can not be directly uses as the emergency fire pump of boats and ships.
Make Ordinary Centrifugal Pumps possess self-absorption function so the following aspects approach (at present generally use) arranged:
1, in the suction line bottom of centrifugal pump one-way valve is installed.The bottom valve of just saying usually.The effect of bottom valve is exactly to make suction line be full of water, makes suction line produce negative pressure through centrifugal pump impeller rotation, thereby makes bottom valve open, and is incorporated into external water source in the pump, makes the pump can proper functioning.
But just a problem is arranged here,, promptly directly contact, and suction line is irremovable after shipbuilding finishes with external water source (like sea or rivers) because bottom valve is the bottom at suction line.That is to say,, can't keep in repair or change in case this bottom valve occurs as poorly sealed or problem such as come off.
Therefore for using the way that bottom valve is installed to reach the way of self-priming, as emergent fire-fighting hidden danger being arranged, also is insecure.Which Classification society is the whole world do not have allow emergency fire pump to adopt like the method
2, mixed outward or internal-mixing self-priming centrifugal pump.Its principle is through centrifugal impeller high speed rotating (generally export peripheral velocity and will surpass 20 meter per seconds), and impeller inlet produces negative pressure, bleeds.In order to realize self-priming, must satisfy following condition on the pump structure:
(1) after the assurance pump stops, there is enough water to store (, also just can't not produce negative pressure) in the pump, need be furnished with one-way valve in pump housing inlet for this reason even the impeller rotation also can not produce centrifugal force sooner because there is not liquid to have only air.And pump housing import must be higher than the impeller center line, goes because of siphonage is discharged in the suction line after pump stops to prevent the liquid in the pump housing.
(2), need gas-liquid separation chamber's (purpose is in order to make flow velocity reduce, and the proportion that leans on liquids and gases is different and carry out gas-liquid separation) of enough volumes in order effectively to carry out gas-liquid separation for this reason.
(3) liquid of separating constantly turns back in the impeller and goes, and the enough big runner of return port and volume must be arranged for this reason, and the liquid after the separation is returned in the impeller.
(4) to bleed and the exhaust isolation in order making, must to keep very little gap between the cut water of the impeller cylindrical and the pump housing.
For this reason, certainly will cause following consequence:
(1) efficient of pump decline to a great extent ((123) by top cause);
(2) volume of pump significantly increases ((123) by top cause);
(3) vibration of pump and noise significantly increase ((4) by top cause).
In addition; Owing to the exhaust of the pump of this structure is carried out gas-liquid separation by reducing flow velocity; Exhaust effect obviously less than direct exhaust come fast; Therefore the suction capacity of this pump is relatively poor relatively, and the suction line length between fitness for purpose imbibition face and the pump inlet adds 20D (D is the suction pipe latus rectum) again less than the pump setting height(from bottom).Therefore the application of this pump is restricted, and generally also can only use at water displacement is on the boats and ships below 2000 tons.
3, plug-in self-priming apparatus
Have two kinds of plug-in self-priming apparatus can help Ordinary Centrifugal Pumps to realize self-priming up to now:
(1) jet pump.Its action principle is: pressurized gas is through conical pipe, and according to the fluid mechanics Bernoulli's equation, the less flow velocity of the less basal area just of conical pipe latus rectum is very fast; Its pressure is also lower so; Promptly produce negative pressure, so the pressure of pressurized gas is high more, just low more through the flow velocity of conical pipe; The negative pressure that produces is just big more, and the effect of bleeding is also just good more.General jet pump when compressed air pressure 7 kilograms/more than every square centimeter and when enough tolerance is provided, its degree of vacuum can reach 9 meters, that is to say, the effect of bleeding is more satisfactory, self-priming time and self-priming height are all fine.
But have individual problem to be exactly here: jet pump will consume very big tolerance; At any time can work for guaranteeing emergency fire pump; Must be equipped with special-purpose source of the gas to it; Whether this has increased the cost and the complexity of boats and ships virtually, and the space of boats and ships is also limited in addition, be equipped with separately to allow on the source of the gas space also cannot not know.
Also have a problem to be exactly: jet pump when pressurized gas at a high speed through the time can produce huge noise, this is restricted on naval ship especially submarine, using.
(2) Nash hytor.Its action principle is: through the vacuum impeller rotation, around water was thrown to by vacuum impeller, because action of centrifugal force, water had formed a closed circle that is similar to equal thickness that is decided by the pump chamber shape.Form a crescent-shaped space between vacuum impeller wheel hub and the water ring this moment, and this space is divided into several loculuses that lobe numbers equates by vacuum impeller.If the top with vacuum impeller is starting point for 0 °, the volume of vacuum impeller loculus when preceding 180 ° of rotation changes from small to big so, and communicates with intakeport, and this moment, gas was inhaled into, when air-breathing loculus at the end then isolated with intakeport; When the vacuum impeller continued rotation, loculus was compressed gas from large to small; When loculus communicated with relief opening, gas just was discharged from outside the pump, thereby realized self-priming.
Nash hytor since its make simple, can be with water as medium, and the effect better (its maximum vacuum can reach 9.7 meters) of bleeding, therefore be used as vacuum equipment in a large number and used.
If be attached to Nash hytor in the emergency fire pump and go,, just can realize that it can reach discharge capacity and pressure head requirement that fire house needs, can disobey outer condition again and just can reach good self-priming performance for emergency fire pump.
So how be attached to Nash hytor in the emergency fire pump and go? Key is what mode to make the vacuum impeller rotation through.Present is the shaft coupling (also being with 45 ° of inclined-planes) that relies on shaft coupling (with 45 ° of inclined-planes) the dependence friction drive Nash hytor of centrifugal pump what use, but this structure and unreliable, and present ubiquitous problem is:
1. linkage mechanism is stuck; Cause the shaft coupling (also being friction wheel) of Nash hytor or can not be close to the shaft coupling (also being friction wheel) of centrifugal pump; Be close in other words but can not be close to, caused vacuum impeller not change or do not reach working speed and can't bleed; Cause the shaft coupling (also being friction wheel) of Nash hytor or lean on too tightly with the shaft coupling (also being friction wheel) of centrifugal pump; By the time accomplish pumping process; But can't throw off after coming on the pressure of pump; The pressure of pump can't be set up as a result, and more serious is that the long-time friction of two friction wheels causes that high temperature causes the damage of pump.This point is difficult to avoid, because: (1) emergency fire pump is not frequent use, causes the linkage mechanism action dumb; (2) for seagoing vessel, inland sea, cabin gas corrosion is serious, and linkage mechanism produces rusty stain a little and just causes its action malfunctioning.
2. also has problem shakiness of bleeding exactly.Though next on the instantaneous pressure of pump, do not show that the interior air of the interior perhaps intake line of pump drains fully at this moment, need take out again and wait until that for a moment the interior air of the interior perhaps intake line of pump drains fully, pressure is set up fully at this moment, and the operation of pump is also just steady.In case but actual conditions are on the instantaneous pressure of this structure pump, piston is action thereupon just, and linkage mechanism also follows by action simultaneously, and friction wheel hightails, and the work of bleeding stops thereupon.(the reason more complicated here is because pump inner flow passage more complicated causes gas to gather because the air that pump is interior or intake line is interior is got rid of fully but be actually; The formation air bag), pressure upward next stable afterwards not the living of moment of pump got off again soon very much; Friction wheel combines friction again repeatedly as a result; Nash hytor is worked repeatedly, until draining air at last, till the pressure stability.So must lean on the artificial artificial linkage mechanism of holding sometimes, not make its disengaging, until pressure stability.
3. can produce bigger noise when combining the phase mutual friction owing to friction wheel, this is restricted on naval ship especially submarine, using.
4. device for mechanical partial design too complex, part is various, therefore causes the too high and failure rate of machinery of manufacture cost also to increase thereupon.
The model utility content
To the defective that exists in the existing technology; The purpose of the utility model is to provide a kind of electric emergency fire water pump; Rational in infrastructure, the impeller of the vacuum impeller of water ring vaccum pump and electric emergency fire water pump adopts the same axis, and the power that vacuum impeller consumes is relatively very little; The impeller that finishes final vacuum impeller and electric emergency fire water pump though bleed is the same also in rotation, can ignore; Owing to have the water source in the electric emergency fire water pump can carry out interior circulation, so vacuum impeller can not wear and tear.
For reaching above purpose, the technological scheme that the utility model is taked is:
A kind of electric emergency fire water pump comprises motor 25, and its below is connected with emergency fire pump through hitch 20; The live axle of motor 25 is positioned at hitch 20; And be connected with axle 8 through first, second coupling 17,18, it is characterized in that: the emergency fire pump below is provided with water ring vaccum pump
After axle 8 passes the bearing support of being located in the hitch 20 15, successively with the pump housing of being located at emergency fire pump 1 in impeller 3, the vacuum impellers of being located in the pump housing 12 of water ring vaccum pump 13 be connected.
On the basis of technique scheme, the pump housing 1 of said emergency fire pump is provided with pump cover 2,
Feed liquor interface 31 that cavity with impeller 3 places is communicated with is arranged on the pump housing 1 of emergency fire pump respectively, goes out liquid interface 32,
The lower end of the pump housing 12 of said water ring vaccum pump is provided with vacuum pump cover 19,
The pump housing 12 of water ring vacuum is provided with respectively the vacuum pump suction gas port 44 and vacuum pump relief opening 45 that the cavity with vacuum impeller 13 places is communicated with.
On the basis of technique scheme, between the pump housing 1 of hitch 20 and emergency fire pump, be provided with an O RunddichtringO 6,
Between the pump housing 12 of the pump housing 1 of emergency fire pump and water ring vaccum pump, be provided with the 2nd O RunddichtringO 7.
On the basis of technique scheme, the part that axle 8 penetrates the pump housing 1 of emergency fire pump is provided with outside framework oil seal 24, sealing gland 23, mechanical seal 21 from top to bottom successively,
The part that axle 8 penetrates the pump housing 12 of water ring vaccum pump is provided with stuffing box packing 22, axle sleeve 10 from top to bottom successively, and said axle sleeve 10 is provided with properties of journal bearing lubricated 11.
On the basis of technique scheme, be respectively equipped with first seal ring 4, second seal ring 5 between the pump housing 1 of the lower end of impeller 3 and upper end and emergency fire pump.
On the basis of technique scheme, said bearing support 15 is provided with opening inner chamber up, in this inner chamber, is provided with rolling bearing 14, is provided with bearing gland 16 at the opening of this inner chamber.
On the basis of technique scheme, be provided with one in the said sealing gland 23 and be used to the water cooling chamber 41 that mechanical seal 21 and outside framework oil seal 24 provide lubricated water,
Also be provided with the circulating water intake 42, the circulating water outlet 43 that are communicated with water cooling chamber 41 on the sealing gland 23,
A water pot 46 is fixed in hitch 20 sides, and circulating water intake 42, circulating water outlet 43 are connected with water pot 46 respectively.
On the basis of technique scheme, water pot 46 bottoms are connected to the function that 54, No. four valves 54 of No. four valves have water injection valve and isolating valve concurrently through pipeline, and be used for the vacuum pump water filling and cut off the vacuum pump import and export,
No. four valves 54 are connected to out 32, No. five valves 55 of liquid interface through first bye-pass after through No. five valves 55 and have the function of extraction valve,
No. four valves 54 are connected to 31, No. six valves 56 of feed liquor interface through second bye-pass after through No. six valves 56 and have the function of vacuum pump inlet valve, circulation usefulness when bleeding with proper functioning,
No. four valve 54 is directly connected to vacuum pump suction gas port 44 through the 3rd bye-pass,
No. four valve 54 is connected to circulating water intake 42 through the 4th bye-pass, and circulating water outlet 43 is connected to water pot 46 bottoms through pipeline,
Vacuum pump relief opening 45 is connected to water pot 46 bottoms through pipeline,
The pipeline connection of water pot 46 tops through being provided with a valve 51 is to atmosphere, and a valve 51 has the function of water injection valve, adds just that water uses,
The pipeline connection of water pot 46 tops through being provided with No. three valves 53 is to atmosphere, and No. three valves 53 have the function of outlet valve,
The described electric emergency fire water pump of the utility model; Rational in infrastructure; The impeller of the vacuum impeller of water ring vaccum pump and electric emergency fire water pump adopts the same axis; The power that vacuum impeller consumes is relatively very little, though the impeller of bleed end final vacuum impeller and electric emergency fire water pump is the same also in rotation, can ignore; Owing to have the water source in the electric emergency fire water pump can carry out interior circulation, so vacuum impeller can not wear and tear.
The described electric emergency fire water pump of the utility model, simple and reliable for structure, cheap, safeguard also more convenient.Because the vacuum impeller of water ring vaccum pump and the impeller of electric emergency fire water pump adopt the same axis, therefore:
(1) simple in structure, component reduce, and manufacture cost reduces;
(2) avoid the complicated mechanical driving mechanism, made reliability increase;
(3) owing to there is the sufficient circulatory system to ensure, make reliability and life-span strengthen greatly;
(4) reduced noise, thereby can use on the naval ship.
Sealing gland 23 adopts particular design, has set up the circulatory system, therefore:
(1) avoided mechanical seal to do running;
(2) the fricative heat of mechanical seal can be taken away by the circulatory system, has strengthened the operating reliability and the working life of mechanical seal.
Description of drawings
The utility model has following accompanying drawing:
The structural representation of Fig. 1 electric emergency fire water pump,
The fundamental diagram of Fig. 2 electric emergency fire water pump,
The structural representation of Fig. 3 special seal gland 23,
The annexation schematic representation one of Fig. 4 electric emergency fire water pump and each valve,
The annexation schematic representation two of Fig. 5 electric emergency fire water pump and each valve.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explain.
As shown in Figure 1, the described electric emergency fire water pump of the utility model comprises:
The emergency fire pump below is provided with water ring vaccum pump,
The live axle of motor 25 is positioned at hitch 20, and is connected with axle 8 through first, second coupling 17,18,
After axle 8 passes the bearing support of being located in the hitch 20 15, successively with the pump housing of being located at emergency fire pump 1 in impeller 3, the vacuum impellers of being located in the pump housing 12 of water ring vaccum pump 13 be connected.
The pump housing 1 of hitch 20, emergency fire pump and 12 of the pump housings of water ring vaccum pump are connected with bolton respectively.
On the basis of technique scheme, like Fig. 1, shown in 4, the pump housing 1 of said emergency fire pump is provided with pump cover 2,
The lower end of the pump housing 12 of said water ring vaccum pump is provided with vacuum pump cover 19,
The pump housing 12 of water ring vacuum is provided with respectively the vacuum pump suction gas port 44 and vacuum pump relief opening 45 that the cavity with vacuum impeller 13 places is communicated with.
On the basis of technique scheme, between the pump housing 1 of hitch 20 and emergency fire pump, be provided with an O RunddichtringO 6,
Between the pump housing 12 of the pump housing 1 of emergency fire pump and water ring vaccum pump, be provided with the 2nd O RunddichtringO 7.
On the basis of technique scheme, the part that axle 8 penetrates the pump housing 1 of emergency fire pump is provided with outside framework oil seal 24, sealing gland 23, mechanical seal 21 from top to bottom successively,
The part that axle 8 penetrates the pump housing 12 of water ring vaccum pump is provided with stuffing box packing 22, axle sleeve 10 from top to bottom successively, and said axle sleeve 10 is provided with properties of journal bearing lubricated 11.
On the basis of technique scheme, be respectively equipped with first seal ring 4, second seal ring 5 between the pump housing 1 of the lower end of impeller 3 and upper end and emergency fire pump.
On the basis of technique scheme, said bearing support 15 is provided with opening inner chamber up, in this inner chamber, is provided with rolling bearing 14, is provided with bearing gland 16 at the opening of this inner chamber.Bearing gland 16 is connected with bearing support 15 usefulness bolton, and axle 8 is adaptive with rolling bearing 14.
On the basis of technique scheme, as shown in Figure 3, be provided with one in the said sealing gland 23 and be used to the water cooling chamber 41 that mechanical seal 21 and outside framework oil seal 24 provide lubricated water,
Also be provided with the circulating water intake 42, the circulating water outlet 43 that are communicated with water cooling chamber 41 on the sealing gland 23,
A water pot 46 is fixed in hitch 20 sides, and circulating water intake 42, circulating water outlet 43 are connected with water pot 46 respectively.
Sealing gland 23 in the utility model is designed a water cooling chamber 41 therein, is specifically designed to mechanical seal 21 and outside framework oil seal 24 lubricated water is provided.As everybody knows; Friction is to produce heat; In turning round for a long time, iff relies on this point water in the slight water cooling chamber 41 in the sealing gland 23, and that has been vaporized soon; Therefore on sealing gland 23, also be provided with circulating water intake 42, the circulating water outlet 43 that is communicated with water cooling chamber 41; Make water cooling chamber 41 can be used to add water pot 46 connections of water, so just can circulate endlessly, guarantee mechanical seal 21 and outside framework oil seal 24 safe operations to take away heat with the outside.
In order to ensure sealing gland 23 water of can annotating into, and can deposit water in the utility model, carry out above-mentioned particular design to sealing gland 23, on sealing gland 23, adding outside framework oil seal 24 purposes also is in order to deposit water.
On the basis of technique scheme, like Fig. 4, shown in 5, water pot 46 bottoms are connected to the function that 54, No. four valves 54 of No. four valves have water injection valve and isolating valve concurrently through pipeline, and be used for the vacuum pump water filling and cut off the vacuum pump import and export,
No. four valves 54 are connected to out 32, No. five valves 55 of liquid interface through first bye-pass after through No. five valves 55 and have the function of extraction valve,
No. four valves 54 are connected to 31, No. six valves 56 of feed liquor interface through second bye-pass after through No. six valves 56 and have the function of vacuum pump inlet valve, circulation usefulness when bleeding with proper functioning,
No. four valve 54 is directly connected to vacuum pump suction gas port 44 through the 3rd bye-pass,
No. four valve 54 is connected to circulating water intake 42 through the 4th bye-pass, and circulating water outlet 43 is connected to water pot 46 bottoms through pipeline,
Vacuum pump relief opening 45 is connected to water pot 46 bottoms through pipeline,
The pipeline connection of water pot 46 tops through being provided with a valve 51 is to atmosphere, and a valve 51 has the function of water injection valve, adds just that water uses,
The pipeline connection of water pot 46 tops through being provided with No. three valves 53 is to atmosphere, and No. three valves 53 have the function of outlet valve,
As shown in Figure 2, the working principle of above-mentioned each valve is following: this pump divides three part working staties, that is:
1, adds water state;
When adding water state, the problem that mainly will solve is guaranteed exactly that pump the time can move in operation and can not produced dried the running under anhydrous state.Being easy to generate what do that running causes scaling loss in the pump mainly is two parts:
(a) mechanical seal 21;
(b) water ring vaccum pump.
The concrete switch situation of each valve is following in this process:
At first will open a valve, No. four valve doors, No. three valves, all the other are closed, pour water from a valve, when water when No. three valves flow out, show that water filling accomplishes.
Water filling is closed a valve and No. four valves after accomplishing.
2, the state (being the self-priming process) of bleeding;
Open valve No. five.Just No. five valves and No. three valves of opening this moment.
In this process, what No. three valves were discharged is liquid-vapor mixture, discharge fully by the time be water the time, show that pumping process finishes (self-absorption function completions), delivery side of pump pressure and discharge capacity reach declared working condition rapidly at this moment.
This function is accomplished, and closes No. three valves and No. five valves.
3, normal operating condition (promptly bleed and finish to work under the declared working condition).
Open No. two valves and No. six valves, this moment, vacuum pump was formed a great circulation system with mechanical seal.Guaranteed the safe operation of vacuum pump and mechanical seal.
The content of not doing in this specification to describe in detail belongs to related domain professional and technical personnel's known prior art.
Claims (8)
1. electric emergency fire water pump; Comprise motor (25); Its below is connected with emergency fire pump through hitch (20), and the live axle of motor (25) is positioned at hitch (20), and is connected with axle (8) through first, second coupling (17), (18); It is characterized in that: the emergency fire pump below is provided with water ring vaccum pump
After axle (8) passes the bearing support of being located in the hitch (20) (15), successively with the pump housing of being located at emergency fire pump (1) in impeller (3), the vacuum impeller of being located in the pump housing (12) of water ring vaccum pump (13) be connected.
2. electric emergency fire water pump as claimed in claim 1 is characterized in that: the pump housing of said emergency fire pump (1) is provided with pump cover (2),
Have respectively on the pump housing of emergency fire pump (1) and feed liquor interface (31) that the cavity at impeller (3) place is communicated with, go out liquid interface (32),
The lower end of the pump housing of said water ring vaccum pump (12) is provided with vacuum pump cover (19),
Vacuum pump suction gas port (44) and vacuum pump relief opening (45) that the cavity that the pump housing of water ring vacuum (12) is provided with respectively and vacuum impeller (13) belongs to is communicated with.
3. electric emergency fire water pump as claimed in claim 1 is characterized in that: between the pump housing (1) of hitch (20) and emergency fire pump, be provided with an O RunddichtringO (6),
Between the pump housing (12) of the pump housing (1) of emergency fire pump and water ring vaccum pump, be provided with the 2nd O RunddichtringO (7).
4. electric emergency fire water pump as claimed in claim 1 is characterized in that: the part that axle (8) penetrates the pump housing (1) of emergency fire pump is provided with outside framework oil seal (24), sealing gland (23), mechanical seal (21) from top to bottom successively,
The part that axle (8) penetrates the pump housing (12) of water ring vaccum pump is provided with stuffing box packing (22), axle sleeve (10) from top to bottom successively, and said axle sleeve (10) is provided with properties of journal bearing lubricated (11).
5. electric emergency fire water pump as claimed in claim 1 is characterized in that: be respectively equipped with first seal ring (4), second seal ring (5) between the pump housing (1) of the lower end of impeller (3) and upper end and emergency fire pump.
6. electric emergency fire water pump as claimed in claim 1 is characterized in that: said bearing support (15) is provided with opening inner chamber up, in this inner chamber, is provided with rolling bearing (14), is provided with bearing gland (16) at the opening of this inner chamber.
7. electric emergency fire water pump as claimed in claim 4 is characterized in that: is provided with one in the said sealing gland (23) and is used to the water cooling chamber (41) that mechanical seal (21) and outside framework oil seal (24) provide lubricated water,
Also be provided with the circulating water intake (42), the circulating water outlet (43) that are communicated with water cooling chamber (41) on the sealing gland (23),
A water pot (46) is fixed in hitch (20) side, and circulating water intake (42), circulating water outlet (43) are connected with water pot (46) respectively.
8. electric emergency fire water pump as claimed in claim 7; It is characterized in that: water pot (46) bottom is connected to No. four valves (54) through pipeline; No. four valves (54) have the function of water injection valve and isolating valve concurrently, are used for the vacuum pump water filling and cut off the vacuum pump import and export
No. four valves (54) are connected to out liquid interface (32) through first bye-pass after through No. five valves (55), and No. five valves (55) have the function of extraction valve,
No. four valves (54) are connected to feed liquor interface (31) through second bye-pass after through No. six valves (56), and No. six valves (56) have the function of vacuum pump inlet valve, circulation usefulness when bleeding with proper functioning,
No. four valves (54) are directly connected to vacuum pump suction gas port (44) through the 3rd bye-pass,
No. four valves (54) are connected to circulating water intake (42) through the 4th bye-pass, and circulating water outlet (43) is connected to water pot (46) bottom through pipeline,
Vacuum pump relief opening (45) is connected to water pot (46) bottom through pipeline,
The pipeline connection of water pot (46) top through being provided with a valve (51) is to atmosphere, and a valve (51) has the function of water injection valve, adds just that water uses,
The pipeline connection of water pot (46) top through being provided with No. three valves (53) is to atmosphere, and No. three valves (53) have the function of outlet valve,
Water pot (46) top is connected to feed liquor interface (31) through the pipeline that is provided with No. two valves (52), and No. two valves (52) have the function of vacuum pump outlet valve, and circulation is used during as exhaust and proper functioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202474456U CN202560575U (en) | 2012-05-25 | 2012-05-25 | Electric emergency fire pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202474456U CN202560575U (en) | 2012-05-25 | 2012-05-25 | Electric emergency fire pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560575U true CN202560575U (en) | 2012-11-28 |
Family
ID=47210236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202474456U Withdrawn - After Issue CN202560575U (en) | 2012-05-25 | 2012-05-25 | Electric emergency fire pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678576A (en) * | 2012-05-25 | 2012-09-19 | 包耀红 | Electric emergency fire pump |
-
2012
- 2012-05-25 CN CN2012202474456U patent/CN202560575U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678576A (en) * | 2012-05-25 | 2012-09-19 | 包耀红 | Electric emergency fire pump |
| CN102678576B (en) * | 2012-05-25 | 2014-09-17 | 包耀红 | Electric emergency fire pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102795325B (en) | Water spray propulsion unit for ship | |
| CN202209281U (en) | High-efficiency energy-saving combined type self-sucking pump | |
| CN105952612B (en) | A kind of pump self-priming apparatus and method | |
| CN202560575U (en) | Electric emergency fire pump | |
| CN204716547U (en) | A kind of self-priming pump | |
| CN102678576B (en) | Electric emergency fire pump | |
| CN107100836A (en) | A kind of Unitary Impeller is pressurized three screw pump | |
| CN215333590U (en) | Power and gas composite sealing device | |
| CN1888516A (en) | Fluid conveying device | |
| CN204805099U (en) | Bulb formula helical blade through -flow pump | |
| CN108869306A (en) | Horizontal double sucking pump is opened in double containment level | |
| CN205478525U (en) | Can realize single -stage centrifugal pump of axial force self -balancing | |
| CN207972782U (en) | Frequency conversion steering engine peculiar to vessel | |
| CN207048916U (en) | Common axis centrifugal blower-pump and plunger pump high pressure pump group | |
| CN203717367U (en) | Self-suction non-blockage sewage pump | |
| CN102720696A (en) | Preheating water pump | |
| CN206593504U (en) | A kind of jetting stream vacuum system transformed for energy saving for power plants | |
| CN206917865U (en) | A kind of vertical no-sealed self-sucking pump | |
| CN201068868Y (en) | Turbine pump | |
| CN105090058A (en) | Unpressurized LNG (Liquefied Natural Gas) immersed pump | |
| CN220319841U (en) | High-pressure sealing circulating liquid tank using magnetic coupling pump | |
| CN107044424B (en) | Balanced pipe cooling system of water pump engine | |
| CN107165802A (en) | Common axis centrifugal blower-pump and plunger pump high pressure pump group | |
| CN107120292A (en) | A kind of New Marine centrifugal pump | |
| CN103541909A (en) | Vertical type non-leakage efficient and energy-saving idling-resistant synchronous self-sucking pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121128 Effective date of abandoning: 20140917 |
|
| RGAV | Abandon patent right to avoid regrant |