CN206071872U - The horizontal moisture trap of liquid film coagulation - Google Patents
The horizontal moisture trap of liquid film coagulation Download PDFInfo
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- CN206071872U CN206071872U CN201621013897.2U CN201621013897U CN206071872U CN 206071872 U CN206071872 U CN 206071872U CN 201621013897 U CN201621013897 U CN 201621013897U CN 206071872 U CN206071872 U CN 206071872U
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Abstract
The utility model discloses a kind of horizontal moisture trap of liquid film coagulation, is related to a kind of liquid-ring vacuum pump return water system for fields such as chemical industry, machinery, exploration, electric power.It includes separator body, Xuan Mo areas, gas-water separation area, heat transfer zone, commutating zone, deflector, toroidal membrane；Coolant inlet is installed on the shell in Xuan Mo areas, Xuan Mo is provided with rotating-film tube in area, the tube wall of rotating-film tube has been provided with fenestra, deflector is provided with gas phase channel, gas-water separation area lower end and commutating zone lower end are connected with heat transfer zone upper end, heat exchange dividing plate is installed inside heat transfer zone, the outlet of lower heat exchanger tube is connected with the water inlet of upper heat exchanger tube；Heat exchange liquid import is connected with the water inlet of lower heat exchanger tube；Heat exchange liquid outlet is connected with the outlet of upper heat exchanger tube.This utility model advantageously reduces backwater flow disturbance, can reduce resistance.
Description
Technical field
This utility model is related to a kind of moisture trap for fields such as chemical industry, machinery, exploration, electric power, specifically
It is a kind of horizontal moisture trap of liquid film coagulation.
Background technology
Liquid-ring vacuum pump is mainly used in the forming process of black vacuum, is close to isotherm compression, unwise to dust as which has
Feel, suction gas can be with entrained liquids or the advantage of a large amount of vapor, which is widely used in power industry field, to condenser
Vacuumizing phase and vacuum maintenance stage are completed using vacuum pump and complete unit.Liquid-ring vacuum pump by slow-speed motor,
Relevant connecting pipe, valve inside separator body, working solution cooler, atmospheric control, high-low level control, pump group
And the composition such as electrical control equipment, its effect is that vacuum is set up when Steam Turbine starts and leakage at vacuum system imprecision is extracted
The air for entering and non-condensing steam, to maintain the vacuum of condenser.Liquid-ring vacuum pump is returned in pump chamber by biasing impeller
The dynamic vacuum pump for making swept volume of a single chamber cyclically-varying to realize being evacuated of transhipment.
Liquid rotary pump operationally, as hydraulic fluid temperature constantly rises, and constantly has water from aerofluxuss in exhaust process
Mouth is lost in, and discharge reduction in pump chamber causes the performance of liquid rotary pump to reduce；And due to by work liquid temp and pressure for vaporization
Limit, its inside cavity is susceptible to cavitation.Cavitation not only can produce destruction to the flow passage components of liquid rotary pump, can also make liquid
Ring pump produces vibration and noise, and causes its efficiency to decline, therefore should prevent liquid rotary pump from working under cavitation state as far as possible.Cause
This, needs constantly to supplement hydraulic fluid into pump chamber body during pendular ring pump operation, with maintenance work liquid measure and reduction work
Make the temperature of liquid.
The equipment such as liquid-ring vacuum pump or compressor operationally needs constantly supplementary cooling medium, i.e. working solution into pendular ring.
The working solution is substantially that the steam water interface that vacuum pump is discharged is separated via steam-water separator and the cooling for reflux after heat exchanger
Liquid, the flow of the part cooling work liquid, temperature and reflux type will directly influence the work temperature of vacuum pump pendular ring
Degree, so as to affect the work efficiency and cavitation degree of risk of vacuum pump.
As shown in Fig. 2 in the return water system of existing vacuum pump, water return outlet is often designed near vacuum pump end cap one
Side, cooling work liquid are guided near vacuum pump impeller through distribution plate along the water return outlet, are entered into by original water return outlet
Inner barrel.When impeller rotates, cooling work liquid initially enters the adjacent two interlobate volume list of impeller by original water return outlet
Unit, after start mass transfer, heat transfer process into pendular ring with the effect of centrifugal force.
Above-mentioned existing liquid-ring vacuum pump return water system, it is advantageous that the centrifugal force that make use of impeller, and adjacent leaf
Vacuum between piece, so as under the conditions of unpressurized allow working solution from flowing into inside pendular ring, simplifies system.However as in recent years
Carry out liquid-ring vacuum pump return water system to gradually step up the performance requirement of vacuum pump, above-mentioned existing liquid-ring vacuum pump return water system is
Related request cannot be met.For example when summer or long-term high temperature area vacuum pump is applied, pendular ring temperature is too high will to be caused
A series of problems, such as causing the decline of the vacuum efficiency of pump, exhaust capacity decline, cavitation, such problem is to vacuum pump pendular ring temperature, cooling
The backwater amount of working solution, water temperature, return water mode, heat exchange efficiency are put forward higher requirement, above-mentioned existing liquid-ring vacuum pump
The drawbacks of return water mode of return water system, also manifests therewith.
As shown in Fig. 2 its coolant of the return water mode (cryogenic liquid) of existing liquid-ring vacuum pump return water system be via
Original water return outlet is first into the interlobate elementary volume, volume element of two adjacent with impeller, subsequently enters under the influence of centrifugal force
Start mass-and heat-transfer on the inside of pendular ring.And under the high speed rotation of impeller, coolant moves to steam vent by original water return outlet
The time of (draining) is very of short duration, and the heat exchange between liquid is only limitted to pendular ring inner side edge interlayer.I.e. coolant is stopped in pendular ring
Stay the time short, cryogenic liquid does not fully exchange heat and just discharge cylinder, high temperature of the pendular ring near barrel side by steam vent (draining)
Liquid does not obtain effective temperature-reducing or displacement.It is difficult to decline so as to result in pendular ring temperature；In addition, as shown in Fig. 2 often
Circumscribed plate type heat exchanger being selected the heat transmission equipment of rule return water system, such system layout is not compact, floor space is big, maintenance more
Inconvenience, heat exchange efficiency is not high, and so as to be easily caused, vacuum pump summer condition overtemperature, inefficiency, exhaust capacity decline, vapour
The problems such as erosion.
Utility model content
The purpose of this utility model is, for the weak point for overcoming background technology, and to provide a kind of liquid film coagulation horizontal pneumatic
Water separator.
To achieve these goals, the technical solution of the utility model is：The horizontal moisture trap of liquid film coagulation, including point
From device body, the separator body upper end is provided with separator material inlet and separated gas outlet, and separator body lower end sets
There are separation liquid outlet, heat exchange liquid import and heat exchange liquid outlet；It is characterized in that：The outer upper ends of the separator body are installed
You Xuanmo areas, are provided with gas-water separation area, heat transfer zone and commutating zone inside separator body, gas-water separation area and commutating zone are respectively positioned on
Separator body upper end, heat transfer zone are located at separator body lower end；Coolant inlet is installed on the shell in the Xuan Mo areas, is revolved
It is provided with film area and goes out the rotating-film tube that materail tube is connected, the tube wall of rotating-film tube is provided with the fenestra that water supply stream passes through, described
Rotating-film tube is connected with gas-water separation area, and separated gas outlet is connected with commutating zone, is separated liquid outlet and is connected with heat transfer zone；It is described
The deflector being provided between gas-water separation area and commutating zone inside separator body, deflector are provided with for separating gas
The gas phase channel for passing through, the heat transfer zone upper end are provided with the toroidal membrane inside separator body, and gas-water separation area
Lower end and commutating zone lower end are connected with heat transfer zone upper end, be provided with and be connected with the inwall of separator body inside the heat transfer zone
Heat exchange dividing plate, the heat exchange is divided into upper heat transfer zone positioned at heat exchange dividing plate upper end by the dividing plate that exchanges heat, and is located at heat exchange dividing plate
The lower heat transfer zone of lower end, is provided with some upper heat exchanger tubes in the upper heat transfer zone, some lower heat exchanger tubes are provided with lower heat transfer zone, described
The outlet of lower heat exchanger tube is connected with the water inlet of upper heat exchanger tube；Heat exchange liquid import is located at below heat exchange dividing plate, and with
The water inlet connection of heat exchanger tube；The heat exchange liquid outlet is between heat exchange dividing plate and toroidal membrane, and goes out with upper heat exchanger tube
The mouth of a river connects.
In above-mentioned technical proposal, the skinning centerline hole is risen for outer with the intersection point of skinning pipe outer wall in the horizontal direction
Film point of contact, tangent line of the outer skinning point of contact in skinning pipe outer wall are outer skinning tangent line, in the outer skinning tangent line and a fenestra
Angle between heart line is 15～60 °, and the angle risen between the centrage and horizontal plane of fenestra is 5～20 °.
In above-mentioned technical proposal, the skinning centerline hole is interior with the intersection point of skinning inside pipe wall in the horizontal direction
Film point of contact, outer skinning point of contact are located above interior skinning point of contact, the angle between the centrage of the outer skinning tangent line and a fenestra
For 30 °, the angle risen between the centrage and horizontal plane of fenestra is 10 °.
There is prior art to compare, the beneficial effects of the utility model are as follows：
1st, multiple water return outlets will be set on vacuum pump wall, and be made between the barrel of water return outlet and vacuum pump body to cut
To setting, backwater flow disturbance is advantageously reduced, resistance can be reduced.
2nd, the working solution that temperature can be made relatively low when return water mode of the present utility model runs enters pendular ring from barrel, with liquid
High-temp liquid on the inside of pendular ring is discharged into vacuum pump cylinder from air vent while ring exchanges heat, and working solution is realized while heat exchange
Displacement to high-temp liquid.
3rd, separation liquid outlet, coolant inlet is connected with water return outlet by booster pump, can effectively supplement working solution
Amount, advantageously reduces pendular ring temperature.
4th, working solution is supplemented from suction side, can impact low-pressure vortex at this well, improve working fluid pressure, so as to significantly
Reduce cavitation risk, it is ensured that the economy of the Effec-tive Function and Turbo-generator Set of liquid-ring vacuum pump.
5th, the liquid after cooling is introduced into separator inlet using booster pump, precools the high-temp liquid into separator,
The temperature of the liquid of integrated heat exchanger can be lowered into, so as to reduce terminal temperature difference, heat exchange efficiency is improved.
6th, the set-up mode that fenestra is played in this utility model can make to form rotation film into the liquid in rotating-film tube, while logical
Crossing booster pump makes the cryogenic liquid from discharge channel out re-enter in skinning area, is conducive to improving gas-water separation effect
Rate, so as to ensure system stable operation, improves the economy of Turbo-generator Set.
Description of the drawings
Fig. 1 is the structural representation containing liquid-ring vacuum pump return water system of the present utility model.
Fig. 2 is the structural representation of existing liquid-ring vacuum pump return water system.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is the attachment structure schematic diagram for materail tube and rotating-film tube.
When Fig. 5 is to prolong horizontal direction, the structural representation with the rotating-film tube for playing fenestra.
Attachment structure schematic diagrams of the Fig. 6 for impeller, distribution plate, pendular ring and water return outlet.
Structural representation when Fig. 7 is cavernous structure for water return outlet in this utility model.
Structural representation when Fig. 8 is axial banded structure for water return outlet in this utility model.
Fig. 9 is the return water mode and heat exchange amount comparing result in conventional return water mode of the present invention.
Figure 10 is the return water mode and pendular ring temperature comparisons' result in conventional return water mode of the present invention.
1- vacuum pumps body in figure, 11- pump housing material inlets, 12- pump housing material outlets, 13- water return outlets, 14- impellers,
15- distribution plates, 16- pendular rings, 2- separator bodies, 21- separator material inlets, 22- separated gas outlets, 23- separate liquid
Outlet, 24- heat exchange liquid imports, 25- heat exchange liquid outlets, 26- deflectors, 27- gas phase channels, 28- toroidal membranes, 29-, 3- enter thing
Expects pipe, 4- go out materail tube, and 5- booster pumps, 6- Xuan Mo areas, 61- coolant inlets, 62- rotating-film tubes, 63- play fenestra, 7- air waters point
From area, 8- heat transfer zones, 81- heat exchange dividing plates, the upper heat transfer zones of 82-, heat transfer zone under 83-, the upper heat exchanger tubes of 84-, heat exchanger tube under 85-, 9-
Commutating zone.
Specific embodiment
Describe performance of the present utility model below in conjunction with the accompanying drawings in detail, but they are not constituted to of the present utility model
Limit, it is only for example.Make advantage of the present utility model more clear and easy to understand by explanation simultaneously.
As shown in structural representations of the Fig. 1 with liquid-ring vacuum pump return water system of the present utility model, it includes vacuum pump
Body 1, separator body 2, enter materail tube 3 and go out materail tube 4；1 upper end of vacuum pump body is provided with pump housing material inlet 11
With pump housing material outlet 12,1 lower end of vacuum pump body is provided with water return outlet 13, and 2 upper end of the separator body is provided with separation implements
Material import 21 and separated gas outlet 22,2 lower end of separator body are provided with separation liquid outlet 23, heat exchange liquid import 24 and heat exchange
Liquid outlet 25；It is described enter materail tube 3 be arranged on vacuum pump body 1 and connect with pump housing material inlet 11, it is described go out materail tube 4
One end is arranged on vacuum pump body 1 and is connected with pump housing material outlet 12, the other end be arranged in separator body 2 and with point
Connect from device material inlet 21；It is characterized in that：Also include booster pump 5, the outer upper ends of the separator body 2 are provided with rotation
Film area 6, is provided with gas-water separation area 7, heat transfer zone 8 and commutating zone 9 inside separator body 2, gas-water separation area 7 and commutating zone 9 are equal
Positioned at 2 upper end of separator body, heat transfer zone 8 is located at 2 lower end of separator body；Cooling is installed on the shell in the Xuan Mo areas 6
Be provided with liquid entrance 61, Xuan Mo areas 6 with it is described go out the rotating-film tube 62 that connects of materail tube 4, the tube wall of rotating-film tube 62 is provided with confession
What current passed through plays fenestra 63, and the rotating-film tube 62 is connected with gas-water separation area 7, and separated gas outlet 22 is connected with commutating zone 9,
Separate liquid outlet to connect with heat transfer zone 8；It is provided with separator body 2 between the gas-water separation area 7 and commutating zone 9
The deflector 26 in portion, deflector 26 are provided with for separating the gas phase channel 27 that gas passes through, and 8 upper end of the heat transfer zone is provided with installation
Toroidal membrane 28 inside separator body 2, and 7 lower end of gas-water separation area and 9 lower end of commutating zone with 8 upper end of heat transfer zone connect
It is logical, the heat exchange dividing plate 81 being connected with the inwall of separator body 2 is installed inside the heat transfer zone 8, heat exchange dividing plate 81 will be described
8 points of heat transfer zone is positioned at the upper heat transfer zone 82 of heat exchange dividing plate 81 upper end, and positioned at the lower heat transfer zone 83 of 81 lower end of heat exchange dividing plate, institute
State and in heat transfer zone 82, be provided with some upper heat exchanger tubes 84, in lower heat transfer zone 83, be provided with some lower heat exchanger tubes 85, the lower heat exchanger tube
85 outlet is connected with the water inlet of upper heat exchanger tube 84；Heat exchange liquid import 24 is located at below heat exchange dividing plate 81, and with
The water inlet connection of heat exchanger tube 85；It is described heat exchange liquid outlet 25 be located at heat exchange dividing plate 81 and toroidal membrane 28 between, and with above change
The outlet connection of heat pipe 84；The input of the booster pump 5 is connected with liquid outlet 23 is separated, the outfan of booster pump 5 with
The water return outlet 13 and coolant inlet 61 are connected.
Preferably, described 63 centrage of fenestra is cut for outer skinning with the intersection point of 62 outer wall of rotating-film tube in the horizontal direction
Point, tangent line of the outer skinning point of contact on 62 outer wall of rotating-film tube are outer skinning tangent line, in the outer skinning tangent line and a fenestra 63
Angle between heart line is 15～60 °, and the angle risen between the centrage and horizontal plane of fenestra 63 is 5～20 °.
Preferably, described 63 centrage of fenestra is cut for interior skinning with the intersection point of 62 inwall of rotating-film tube in the horizontal direction
Point, outer skinning point of contact are located above interior skinning point of contact, and the angle between the centrage of the outer skinning tangent line and a fenestra 63 is
30 °, the angle risen between the centrage and horizontal plane of fenestra 63 is 10 °.
Preferably, 13 centrage of the water return outlet is backwater with the contact position of 1 outer wall of vacuum pump body in the horizontal direction
Point of contact, tangent line of the backwater point of contact on the outer wall of vacuum pump body 1 are backwater tangent line, the backwater tangent line and water return outlet 13
Centerline parallel.
Preferably, described water return outlet 13 has multiple and arranges in permutation on vacuum pump body 1, and water return outlet 13 is poroid
Structure or axial banded structure.
Preferably, the cross section of the shell of the separator body 2 is ellipse, and the gas phase channel 27 is deflector 26
Multiple pod apertures of upper setting, the separation liquid outlet and heat exchange liquid import 24 are to be adjacently positioned.
Preferably, the coolant inlet 61 has two, and rotating-film tube 62 has two, and described two rotating-film tubes 62 are located at described
Between two coolant inlets 61.
During real work, comprise the technical steps that containing liquid-ring vacuum pump return water system of the present utility model,
Step one：Working solution is passed in vacuum pump body 1, and working solution is made true with distribution plate 15 by impeller 14
Pendular ring 16 is formed in empty pump body 1；
Step 2：Pending high temperature air-water mixture is fed in vacuum pump body 1, pending High Temperature Gas are made
Aqueous mixtures are entered in pendular ring 16 and are contacted with pendular ring 16 through distribution plate 15, pendular ring 16 and pending high temperature mixing wastewater with air
The material formed after thing mixing is the first air-water mixture；
Step 3：First air-water mixture is discharged by the steam vent on distribution plate 15, and enters into out materail tube 4, so
After extend materail tube 4 and be flowed in rotating-film tube 62；
Step 4：Coolant is injected into Xuan Mo areas 6 by coolant inlet 61, the coolant in Xuan Mo areas 6 is passed through
Fenestra 63 is entered in rotating-film tube 62 and is mixed with the first air-water mixture, coolant and the mixed thing of the first air-water mixture
Matter is the second air-water mixture；
Step 5：Second air-water mixture is entered into inside separator body 2 through Xuan Mo areas 6, and in gas-water separation area 7
Gas-water separation is carried out inside, now the second air-water mixture is separated into separation gas and separates liquid；
Step 6：It is described to separate the gas phase channel 27 that gas is initially passed through between gas-water separation area 7 and commutating zone 9, so
After enter in commutating zone 9, finally inside commutating zone 9 after rectification, from the separated gas outlet 22 connected with commutating zone 9
Discharge；
Step 7：Separating liquid passes through gas-water separation area 7 and commutating zone 9 to enter in heat transfer zone 8, inside heat transfer zone 8
Heat exchanger tube contact, separate liquid in heat transfer zone 8 after heat exchange, from the separation liquid outlet 23 positioned at 8 bottom of heat transfer zone
Discharge, now separate liquid and realize heat exchange function；
Step 8：The heat exchanging liquid part that separation liquid outlet 23 is discharged by booster pump 5 is by 61 note of coolant inlet
In Ru Daoxuanmo areas 6, another part is injected in vacuum pump body 1 by water return outlet 13, realizes separating the recycling of liquid；
Step 9：Heat exchanging liquid is first entered in heat transfer zone 8 from heat exchange liquid import 24, is then flowed into from lower heat exchanger tube 85
Upper heat exchanger tube 84, finally discharges from heat exchange liquid outlet 25, in the process, the heat exchanging liquid and upper heat exchanger tube in lower heat exchanger tube 85
Heat exchanging liquid in 84 can be contacted with liquid is separated in heat transfer zone 8, and heat exchanging liquid realizes heat exchange function.
During real work, as the pending high temperature air-water mixture described in step 2 is entered by pump housing material inlet
Enter vacuum pump sheet it is internal after, described high temperature air-water mixture through the air inlet on distribution plate directly with step 2 in pendular ring
Contact, now pendular ring temperature gradually rises.
During real work, rotation film after coolant enters into rotating-film tube in Xuan Mo areas, can be formed, rotation film can reduce gas flow temperature,
Can improve gas is separated in separator body and separate the separation efficiency of liquid.
During real work, from many water return outlets of coolant Jing separated in liquid outlet out lateral surface directly with pendular ring
Contact, is directly pressed into the high-temp liquid of the medial surface of pendular ring in pump housing material outlet；
This utility model eliminates external plate type heat exchanger, and is integrated with tube built-in heat exchanger in tank base, shape
Into a kind of built-in horizontal separator body of heat exchanger；Separate liquid outlet by increase pump connect with coolant inlet after,
Constantly can be entered in rotating-film tube by coolant inlet from the coolant separated in liquid outlet out, and then can be dropped
The low temperature for flowing into the liquid in gas-water separation area.Booster pump is connected in the afterbody of horizontal separator body, booster pump passes through
Some pipelines are connected with water return outlet, meanwhile, it is connected with coolant inlet by some pipelines again on booster pump in addition, so as to
Separation efficiency is improved, the terminal temperature difference at heat exchanger is reduced.
As shown in Figure 1, Figure 3：Return water mode described in the utility model is to have changed with the difference of conventional return water mode
The position of water return outlet and quantity, at the same time system be additionally arranged booster pump, cause when ambient temperature change or work needed for equipment
When condition changes, vacuum pump fluid backwater amount can be accordingly adjusted according to ruuning situation.In addition, make booster pump with
Cooling water inlet connects, and can reduce from vacuum pump body entering into the gas flow temperature of separator body, is conducive to improving gas
Water separation efficiency, and the mean temperature of heat transfer process in built-in heat exchanger is reduced, heat exchange efficiency is improved, increases the economy of system
Property.
With reference to shown in Fig. 3：This utility model employs built-in heat exchanging type horizontal separator body, advantageously reduces vacuum pump
The occupation of land space of return water system, makes the arrangement of vacuum pump return water system more flexible and convenient.
With reference to shown in Fig. 2：Conventional return water mode does not have barrel backwater structure and the regulation work(for different operating modes
Can, vacuum pump cooling work liquid is fed water by original water return outlet within the system, coolant (cryogenic liquid) be via
Original water return outlet initially enters the adjacent two interlobate elementary volume, volume element of impeller, is subsequently entered in pendular ring under the influence of centrifugal force
Side starts mass-and heat-transfer.Under the high-speed rotation of impeller, coolant moves to steam vent (draining) heel row by original water return outlet
Go out vacuum pump sheet external.
The heat exchange that the heat transfer process of above-mentioned prior art is only limitted between liquid is only limitted to pendular ring inner side edge interlayer, and cools down
Liquid time of staying in the pendular ring is short, exchanges heat insufficient, and cryogenic liquid does not fully exchange heat and just discharge vacuum by steam vent (draining)
Pump sheet is external, and high-temp liquid of the pendular ring near barrel side does not obtain effective temperature-reducing or displacement.So as to result in pendular ring temperature
Degree is difficult to decline, vacuum pump inefficiency, and exhaust capacity declines, the problems such as cavitation.
Effective utilization-heat transfer unit method is calculated into conventional return water mode and this programme direct replacement mode respectively below
Pendular ring temperature, supercharging backwater after heat exchange amount Q, heat exchange is drawn and is connected to after separator inlet in separator the temperature of steam flow and built-in
The mean temperature of heat exchanger heat transfer process.
Known pendular ring flow, backwater initial temperature and pendular ring initial temperature, and given five groups of different circling water flow rates, concrete initial value is such as
Shown in lower：
1 initial calculation parameter of table
For convenience of calculating, the semi-circular heat-transfer surface that backwater is flow through launches and equivalency transform exchanges heat for flat board, the specific heat of water
cp=4200J/ (kg DEG C).
For conventional water return method, flat board following current heat exchange mode, the heat exchange between backwater and working solution can be equivalent to
It is zero that face is considered as thermal resistance, i.e. backwater and working solution direct contact heat transfer.Can be obtained by Newtonian Cooling quantitative analysis, the calculating of heat exchange amount
Formula is as follows：
Q=qm1cp(t1′′-t1')=qm2cp(t2′-t2' ') (formula 1)
Q=kA Δ tm(formula 2)
Nu=0.023Re0.8Prb(formula 4)
In formula, Q is heat exchange amount, qm1For circling water flow rate, qm2For pendular ring flow, CpFor specific heat capacity, t1After ' '. is for heat exchange
The temperature of backwater, t2The temperature of pendular ring after for heat exchange, k is Composite Walls, Δ tm. for the mean temperature difference that exchanges heat, h changed for convection current
Hot coefficient.For following current exchanges heat, the calculating formula of efficiency is as follows：
, to formula 6, effectiveness-heat transfer unit method has obtained the heat exchange under different circling water flow rates for comprehensive known conditions and formula 1
Amount and outlet temperature, as shown in table 2.
2 conventional return water mode result of calculation of table
| Sequence number | Circling water flow rate (kg/s) | Heat exchange amount Q (KW) | Pendular ring temperature (DEG C) |
| 1 | 6.285 | 449.97 | 37.60 |
| 2 | 6.174 | 412.47 | 37.81 |
| 3 | 5.758 | 337.48 | 38.23 |
| 4 | 5.259 | 206.24 | 38.91 |
| 5 | 4.662 | 112.49 | 39.39 |
For the heat exchange mode of this programme direct replacement, which replaces the pendular ring of 40 DEG C of equivalent every time with 15 DEG C of backwater,
With reference to initial condition and formula 1 to formula 6, heat exchange amount Q and outlet temperature being finally calculated under different circling water flow rates is as shown in table 3.
3 direct replacement mode result of calculation of table
| Sequence number | Circling water flow rate (kg/s) | Heat exchange amount Q (KW) | Pendular ring temperature (DEG C) |
| 1 | 6.285 | 659.94 | 36.48 |
| 2 | 6.174 | 633.74 | 36.62 |
| 3 | 5.758 | 604.60 | 36.78 |
| 4 | 5.259 | 552.16 | 37.05 |
| 5 | 4.662 | 489.51 | 37.49 |
Return water mode of the present utility model is with conventional return water mode heat exchange amount comparing result as shown in figure 9, pendular ring temperature pair
It is more as shown in Figure 10 than result.
After direct replacement mixed heat transfer, in the steam flow temperature, separator from vacuum pump outlet discharge, heat exchanger is entered
When backwater temperature difference and being drawn with booster pump when connecing that cooling backwater is to separator supercharging cooling water inlet all the way, enter in separator
Temperature of backwater temperature difference when entering heat exchanger under different circling water flow rates and the flow that draws water is as shown in table 4 and table 5.
Cooling water is accessed under 4 different flow of table to backwater temperature difference in tank during separator inlet
Flux unit kg/s, temperature unit DEG C
Cooling water is not connect under 5 different flow of table to backwater temperature difference in tank during separator inlet
Result of calculation shows that a kind of liquid ring vacuum pump fluid return water mode is in identical backwater stream disclosed in this utility model
The lower more conventional return water mode of its heat exchange amount of amount is bigger, and pendular ring mean temperature is lower, and separately connects returning after cooling all the way from booster pump
Water can precool separator inlet steam flow to separator inlet, improve gas-water separation efficiency, reduce returning into heat exchanger
The temperature difference of water and heat exchanger cooling water, no matter therefore the heat exchange efficiency or heat exchanger of pendular ring working solution heat exchange efficiency it is more conventional
Return water mode is obviously improved.
Other unaccounted parts belong to prior art.
Claims (3)
1. the horizontal moisture trap of liquid film coagulation, including separator body (2), separator body (2) upper end are provided with separation
Device material inlet (21) and separated gas outlet (22), separator body (2) lower end are provided with separation liquid outlet (23), heat exchange liquid
Import (24) and heat exchange liquid outlet (25)；
It is characterized in that：
The outer upper ends of the separator body (2) are provided with inside Xuan Mo areas (6), separator body (2) and are provided with gas-water separation
Area (7), heat transfer zone (8) and commutating zone (9), gas-water separation area (7) and commutating zone (9) are respectively positioned on separator body (2) upper end, change
Hot-zone (8) is positioned at separator body (2) lower end；
It is provided with the shell of the Xuan Mo areas (6) in coolant inlet (61), Xuan Mo areas (6) and is provided with and goes out materail tube (4)
The rotating-film tube (62) of connection, the tube wall of rotating-film tube (62) are provided with the fenestra (63) that water supply stream passes through, the rotating-film tube (62)
Connect with gas-water separation area (7), separated gas outlet (22) is connected with commutating zone (9), separate liquid outlet with heat transfer zone (8) even
It is logical；
It is provided between the gas-water separation area (7) and commutating zone (9) positioned at the internal deflector (26) of separator body (2),
Deflector (26) is provided with for separating the gas phase channel (27) that gas passes through, and heat transfer zone (8) upper end is provided with installed in separation
The internal toroidal membrane (28) of device body (2), and gas-water separation area (7) lower end and commutating zone (9) lower end with heat transfer zone (8) on
End connection,
The heat exchange dividing plate (81) being connected with the inwall of separator body (2) is installed inside the heat transfer zone (8), exchange heat dividing plate
(81) heat transfer zone (8) are divided into into the upper heat transfer zone (82) positioned at heat exchange dividing plate (81) upper end, and are located at heat exchange dividing plate (81)
It is provided with the lower heat transfer zone (83) of lower end, the upper heat transfer zone (82) in some upper heat exchanger tubes (84), lower heat transfer zone (83) and is provided with
Some lower heat exchanger tubes (85),
The outlet of the lower heat exchanger tube (85) is connected with the water inlet of upper heat exchanger tube (84)；Heat exchange liquid import (24) is located at
Below heat exchange dividing plate (81), and connect with the water inlet of lower heat exchanger tube (85)；Heat exchange liquid outlet (25) is positioned at heat exchange dividing plate
(81) and toroidal membrane (28) between, and connect with the outlet of upper heat exchanger tube (84).
2. the horizontal moisture trap of liquid film coagulation according to claim 1, it is characterised in that：Described fenestra (63) center
Line is outer skinning point of contact with the intersection point of rotating-film tube (62) outer wall in the horizontal direction, and outer skinning point of contact is on rotating-film tube (62) outer wall
Tangent line be outer skinning tangent line, the angle between the outer skinning tangent line and the centrage of fenestra (63) is 15～60 °, skinning
Angle between the centrage and horizontal plane in hole (63) is 5～20 °.
3. the horizontal moisture trap of liquid film coagulation according to claim 2, it is characterised in that：Described fenestra (63) center
Line is interior skinning point of contact with the intersection point of rotating-film tube (62) inwall in the horizontal direction, and outer skinning point of contact is located on interior skinning point of contact
Angle between the centrage of side, the outer skinning tangent line and a fenestra (63) is 30 °, plays the centrage and level of fenestra (63)
Angle between face is 10 °.
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| CN106523365A (en) * | 2016-08-31 | 2017-03-22 | 中国电力工程顾问集团中南电力设计院有限公司 | Liquid membrane coagulation horizontal gas-water separator and gas-water separating method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106523365A (en) * | 2016-08-31 | 2017-03-22 | 中国电力工程顾问集团中南电力设计院有限公司 | Liquid membrane coagulation horizontal gas-water separator and gas-water separating method |
| CN106523365B (en) * | 2016-08-31 | 2019-04-30 | 中国电力工程顾问集团中南电力设计院有限公司 | The horizontal moisture trap of liquid film coagulation and its gas-water separation method |
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