EP0156798A1 - Procedes et dispositif de transfert de liquides contre la resistance d'une pression elevee - Google Patents

Procedes et dispositif de transfert de liquides contre la resistance d'une pression elevee

Info

Publication number
EP0156798A1
EP0156798A1 EP19830903251 EP83903251A EP0156798A1 EP 0156798 A1 EP0156798 A1 EP 0156798A1 EP 19830903251 EP19830903251 EP 19830903251 EP 83903251 A EP83903251 A EP 83903251A EP 0156798 A1 EP0156798 A1 EP 0156798A1
Authority
EP
European Patent Office
Prior art keywords
vessel
vapor
condensate
high pressure
distributor
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Withdrawn
Application number
EP19830903251
Other languages
German (de)
English (en)
Inventor
Thomas Y.C. Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0156798A1 publication Critical patent/EP0156798A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D11/00—Feed-water supply not provided for in other main groups
    • F22D11/02—Arrangements of feed-water pumps
    • F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler

Definitions

  • This invention relates to method and apparatus for transferring liquid to a high pressure vapor generator, a high pressure apparatus, and an extended pipe line.
  • An object of this invention is to reduce greatly the energy consumption for pumping condensate into a high pressure vapor generator or for transferring liquid into an extended pipe line, such as a crude oil pipe line.
  • Another objective is to utilize disclosed high efficiency heat exchanger to heat condensate or liquid.
  • Another objective is to utilize disclosed pressure vessels with interior and exterior shells and thus, the service time of the vessels is much prolonged in comparison with single shell vessels.
  • FIG. 1 is a diagrammatic representation of an energy saving liquid transferring system in accordance with the invention.
  • Figure 2 is a diagrammatic elevational and sectional view of one of the basic energy saving pressure vessels which is usually connected to the last feeding pump, in accordance with the invention
  • Figure 3 is a view similar to that of Figure 2 illustrating the other basic energy saving pressure vessel used in accordance with the invention
  • Figure 4 is a fragmental elevational view of a liquid fluid sprinkling arrangement employed in the vessels of Figures 2 and 3;
  • Figure 4A is a diagrammatic sectional view taken substantially along line 4A-4A of Figure 4;
  • Figure 5 is a view similar to that of Figure 1 showing a modified arrangement of the embodiment of Figure 1;
  • Figure 5A is a fragmental view showing a variation in the embodiment of Figure 1;
  • Figure 6 is a diagrammatic elevational and sectional view of a heat exchanger according to the invention.
  • Figure 7 is a diagrammatic elevational and sectional view of a shell composed of an interior and an exterior shell.
  • Figure 7 is also a fragmental sectional view showing a variation in the embodiment of Figure 2, 3, and 7.
  • Figure 7A is a fragmental sectional view showing a variation in the embodiment of Figure 7.
  • Figure 4B is a fragmental view showing a variation in the embodiment of Figure 2 and Figure 3.
  • the liquid may be condensate) feeding system B of this embodiment comprises condensate receivers 5 and 6 that are constructed in pressure vessel form from suitable material, such as steel, that will withstand internal pressure of up to 8,000 PSIG., depending upon the operating pressure.
  • suitable material such as steel
  • stainless steel having a thickness in the range of from approximately l/8th inch to approximately 1/2 inch can be used at the inner surface of the shell of the vessels.
  • Stainless steel piping and fittings can be used wherever it is financially feasible. All valves, except check valves, shown in Figure 1, 5 through 9, and 10 are of the gradually opened automatic type, other automatic or manual valves can be employed in parallel with any such automatic valve as a standby valve in case of emergency.
  • One shut off valve shall be installed at each side of an automatic valve.
  • a condensate feed line 25 connects to the receiver 5 near its top and contains a check valve 100.
  • a pump 1 in the feed line 25 is operative to pump condensate to the receiver 5 from a suitable source, such as vessel 200 (the condensate in vessel 200 being supplied, for instance, from steam operated turbines utilizing system B).
  • a vent line 26 extends upwardly from the top of the receiver 5 and contains a check valve 112 and a shut off valve 12.
  • a branch line 32 extends from the line 26 to make available processing vapor for external work.
  • the line 32 contains a shut off valve 20 and a check valve 120.
  • the check valves 112 and 120 prevent fluid flow back into the vessel 5.
  • a condensate discharge line 27 leads from the bottom of the receiver 5 (at fitting 27A, see Figure 2) to the receiver 6 near the top thereof for feeding condensate into receiver 6.
  • the line 27 contains a pump 2, a check valve 115, and a heat exchanger
  • Fluid (vapor, condensate, or both) inlet line 29 connects to the top of the receiver 6 and discharges into a distributor means which will be described hereinafter.
  • the line 29 is supplied with fluid either from vapor generator 202 (represented by square) through the line 33 or with heating fluid through the line 34.
  • vapor generator 202 represented by square
  • These lines contain the respective shut off valves 16, 17, and check valves 116, 117, respectively.
  • a vapor discharge line 31 extends upwardly from the top of the receiver 6 for carrying vapor to the line 28.
  • the line 31 contains shut off valve 14.
  • the line 28 connects to receiver 5 near the bottom of same and serves to provide a way to equalize the pressures between receivers 5 and 6.
  • a branch line 35 extending from the line 31 serves as a source to supply vapor from receiver 6 to other processing equipment.
  • Line 35 contains shut off valve 19 and check valve 119.
  • Line 28 extends outwardly, as at 36, from the point where it connects line 31; line 36 connects to a source of heating fluid which may be vapor, condensate or a mixture of both (such source can be a turbine discharge in some cases).
  • Line 36 extends from line 28 and contains shut off valve 13 and check valve 113 which permits flow only in the direction toward the receiver 5 from the indicated source of heating fluid.
  • Each of the lines 34, 35 and 36 for purposes of disclosure is intended to represent one fluid pipe or multiple fluid pipes in parllel, and each of the said multiple pipes are to contain a shut off valve and a check valve identical to those shown for the respective lines 34, 35, and 36.
  • Line 37 extends from the bottom of the receiver 6 (as from fitting 37a, Figure 2) to pump 3, which pumps condensate from the receiver 6 to the heat exchanger 303 and to force the heated condensate in the heat exchanger into the vapor generator 202.
  • Line 37 contains shut off valve 18, check valve 118 and heat exchanger 303.
  • the line 29 connects at fitting 29a to a vertically disposed distributor tube 40 having multinple openings 41 in the lowest part of same.
  • the lower end of the tube 40 is sealed and secured to the bottom of the vessel forming receiver 6 by means of suitable supports 42.
  • the primary liquid level, indicated at 43, represents the lowest level to which the vessel or receiver 6 is to be filled with condensate.
  • the line 31 ( Figure 1) connects with fitting 31a of the receiver 6 and the fitting 37a at the bottom of receiver 6 connects with line 37 ( Figure 1).
  • a distributor 44 extends horizontally across the receiver 6 at the upper part of same and connects to the line 27 through the fitting 27a.
  • Each of all said fittings is a fitting of an opening of the shell 203.
  • the distributor 44 is in the form of a tube 44a having multiplicity of holds 45 formed in same about its circumference, within receiver 6.
  • the receiver 6 also affixes to its upper end one or more sprinkler devices 54 (see Figures 2, 4, and 4A); and each device 54 comprises a trough 54a having a multiplicity of holes 55 formed in and along the lower portion of same through which condensate supplied to sprinkler 54 is to flow by gravity to condense heating vapor above level 43 in order to reduce the vapor pressure in vessel 6.
  • the troughs 54a extend across the receiver and here their ends 56 suitably affixed to the receiver so that all condensate supplied to same drains out through holes 55.
  • Condensate is supplied to the troughs 54a by their receiving condensate sprayed upwardly through distributor 44 when condensate is forced to distributor 44.
  • troughs 54a may be replaced by tubes or containers connected to an opening in the receiver shell.
  • the tubes or containers may have vent openings at the top and multiple holes at the bottom for sprinkling.
  • the sprinklers can be made of aluminum or stainless steel to meet the requirement of each application.
  • a pump can be used for the sprinklers.
  • the distributor tubes 40 and 44 are made of stainless steel or extra hard tungsten alloy or equivalents so that they will adequately handle any pressurized fluid passing through the openings of same. They may be suitably fixed within the vessel 6 in their indicated positions. All parts inside the receiver should be so fastened to the wall of same in such a way that maximum expansion can be absorbed without causing any damage.
  • the horizontal tube type distributor 44 can be supported by a larger drainable tube welded to the said wall. The end of the distributor is inside said drainable tube for free expansion. It is important that the outlet openings 41 in the distributor 40 be located below the primary liquid level 43 of the condensate in the receiver 6. Receiver 6 may contain two or more such distributors 40, as desired.
  • the distributors 40 and 44 are arranged so that the only outlet for the vapor supplied to the receiver is through the openings 41 and 45.
  • the receiver 5 ( Figure 3) has at least a pair of horizontally disposed vertically spaced, tubular distributors 46 and 48 that contain openings 47 and 49 respectively distributed along the entire length of the respective distributor tubes 46 and 48 within receiver 5.
  • the distributor tube 46 which is of the same general type as distributor 44 ( Figure 2), is connected with line 25 through fitting 25a.
  • Distributor 48 located adjacent the bottom of the vessel forming receiver 5 is a tube similar to distributor 44 and is connected with the line 28 through fitting 26a at the top of receiver 5, and the line 27 is connected with the fitting 27a at the bottom of receiver 5.
  • Receiver 5 is also equipped with one or more of the sprinkler devices 54 that are operably associated with distributor 47 in the same manner as with distributor 44 of receiver 6.
  • Receiver 5 like receiver 6, is basically defined by encompassing wall structure 205 suitably sealed and reinforced to withstand the operating conditions contemplated by and particular application.
  • Thermal insulation is required outside the wall 205.
  • vapor and condensate distributors shown in Figures 2 and 3 may be of other suitable distributing shapes that will effect adequate dispensing of the fluids involved within the respective vessels for purposes of condensing the vapor in same.
  • line 37 contains an additional pressure vessel 204, pump 90, valve 70, and check valve 170, downstream of heat exchanger 303.
  • a vapor balance line 311 extends from vapor generator 202 to pressure vessel 204.
  • Line 311 contains valve 71 and check valve 171.
  • Line 312 extends from the three-way valve 70 to line 311.
  • Line 25b extends from liquid receiver or tank 200 to pressure vessel 5e. It serves as a liquid supply line.
  • Line 25b contains pump 1, check valve lOOd, heat exchanger 302a, valve 33d and check valve 33n.
  • Line 26b extends from line 25b to tank 200, line 26b contains valve 31d and check valve 31n.
  • Line 25c extends from line 25b to pressure vessel 5d.
  • Line 25b contains valve 32d and check valve 32n.
  • Line 29b extends from the high pressure apparatus 202 (may be a vapor generator) to the top ot pressure vessel 5d.
  • Line 29b contains 35d and check valve 366n.
  • Line 29b serves as a high pressure vapor supply line.
  • Line 29c extends from line 29b to the top of pressure vessel 53.
  • Line 29b contains valve 37d and check valve 37n.
  • Line 28b extends from line 29b to vessel 5e.
  • Line 28b contains valve 35d and check valve 35n.
  • Line 28c extends from line 29c to pressure vessel 5d.
  • Line 38c contains valve 34d and check valve 34n.
  • Line 27b extends from the bottom of vessel 5d to apparatus 202.
  • Line 27b contains valve 38d, check valve 38n, pump 3, heat exchanger 303a, and modulating control valve 40d.
  • Line 27b serves as a liquid: feeding line.
  • Line 27a contains valve 39d and check valve 39n.
  • the end of line 25b or line 25c may be connected to the inlet of a condensate distribution.
  • the end of line 28b and 28c may be connected to a vapor distributor.
  • FIG. 1A it shows a center section of a nozzle like flow modifier which is used to reduce the impact of high velocity, high pressure vapor in a pipe.
  • FIG. IB it shows a partial alternative of System A.
  • Pump 3 pumps the liquid (or condensate) into an extended pipeline 320.
  • Line 27b extended to pipeline 320.
  • Line 27b contains control valve 40d.
  • line 29b extends from another high pressure vapor source instead of apparatus 202 to pressure vessel 5d.
  • Line 29c extends from line 29b to pressure vessel 5e.
  • the expansion absorbing, heat exchanger 300 consists of heating tubes 50, a main shell 210, and end shell 51 is connected to an opening 501.
  • the end shell 52 and the other end is connected to an expansion joint 60 which consists of tube 502 and tube 503 which is the exterior tube of the two tube type expansion joint.
  • Tube 502 is connected with the opening of fluid cell (or chamber) 53.
  • Each heating tube 50 is connected and fastened to an opening of plate 56.
  • the other ends of tubes 50 are fastended and connected to the openings at plate 55.
  • Opening 505 and 506 at shell 210 are for pipe connection. All end openings of all heating tubes 60 are open to both cell 53 or cell 54. Cell 53 and plate 56 are movable inside shell 210 to absorb expansion of the heating tubes.
  • End shells 51 and 52 are connected to the main shell by flanges.
  • the heat exchanger can be constructed with carbon steel or stainless steel, capable to withstand the required operating pressure up to 8,000 PSIG. It is understood that cell 53 and expansion joint 60 can be used at both ends of the heat exchanger. All shell openings can be built for flanged connections.
  • Figure 6A is a partial alternate of that shown in Figure 1.
  • a bellows type expansion joint 61 is used in place of tube type expansion joint 60 in heat exchanger 301.
  • the expansion joint 61 can be made of stainless steel. It is a conventional expansion joint used by many engineers.
  • Bellows type expansion joint shall be made of flexible steel. It is also a conventional expansion joint.
  • the shell 209 of discussed high pressure apparatus (a pressure vessel, a heat exchanger, etc.) consists of at least two layers of shell.
  • the internal shell 209b is 1/16" to 1/2" thick, made of stainless steel or carbon steel, shell 209b takes a sudden expansion or extration.
  • the exterior shell 209 shall be capble of withstanding the operating pressure up to 8,000 PS. It can be made of carbon steel.
  • the space 208a is a space for pressure balancing liquid, the liquid space absorbing a sudden expansion of shell 209b.
  • the shell 209 can be used for pressure vessel 5 and 6 and heat exchanger 300 utilized in this disclosure to replace the single shell.
  • the liquid space should be open to chamber 208 in most cases.
  • the sudden increased pressure in chamber 208 might crack shell 209b.
  • the opening 209e is utilized to balance the pressure between chamber 208 and space 208b and to release liquid in space 208a in case of overflowing.
  • the liquid can be water in most cases) prevents shell 209a to have the direct contact of hot steam or cold liquid in chamber 208 (except a little portion of shell 209a) and so, no sudden expansion or extraction can occur to at least most part of the inner surface of shell 209a.
  • the sectional view of an insulated shell presents an alternate shell 209a or 209b.
  • the insulation 209d and 209e should be sealed in a metal sheet (preferably stainless steel).
  • the vapor impact moderators as shown in Figure 1, 29b, 29g on line 29b, 29h, 29i on line 29c,
  • 28f, 29g on line 28b, and 28h, 28i on line 28c represent 2 or more moderators in series on a high pressure vapor releasing line. An adequate distance should be between two moderators.
  • the moderators can be used upstream or downstream of a valve. It is understood a single modulator can be used on a pipe line. The application of the moderator can be used in the system shown on Figure 5, or on any high pressure vapor line wherever it is required.
  • the condensate accumulating in the equipment involved (for instance, a condensate tank), represented by vessel 200, and which is to be supplied to the vapor generator 202 by the practice of the invention, is pumped by the pump 1 from the vessel 200 through the line 25 into the distributor 46 of pressure vessel or receiver 5.
  • the condensate passes through the distributor openings 47 into the chamber 206 defined by wall structure 205 to fill the vessel 5 up to the primary liquid level 43a.
  • An automatic air vent arrangement of a suitable type is provided for receivers
  • same air vents are arranged to automatically release the air contained within the receivers 5 and 6; same air vents are arranged to automatically release the air contained within the receivers 5 and
  • the heating fluid which may be steam at 270 degrees F., is introduced into the condensate now within the vessel 5 through line 28 and the perforated tube 48, and valve 13 is closed.
  • the termperature of the condensate within receiver 5 will thereby be raised for example from approximately 180 degrees F. to approximately 230 degrees F.
  • the valves 12 and 20 are closed so that no liquid or vapor escapes from the receiver b.
  • the valve 12 is opened briefly (about two to four seconds) to release to the atmosphere air trapped in receiver 5, when the condensate reaches approximately 230 degrees F.
  • valve 14 is opened to balance the pressures of receivers 5 and 6 (except for the first operating cycle of the system, there is high pressure steam remaining in receiver 6 from the previous cycle); the valve 15 is opened, and the condensate is pumped from the receiver 5 through line 27 into heat exchanger 302 to force the heated condensate, which may be, for example, of approximately 300 degrees F. in the heat exchanger into receiver 5, and specifi, cally, through its distributor 44.
  • the condensate is discharged through the distributor openings 45 into the chamber 207 defined by wall structure 203 of receiver 6.
  • the valve 14 of line 31 is opened so that the pressure of receivers 5 and 6 remains equalized.
  • the receiver 6 is isolated from receiver 5 by closing the valves 14 and 15.
  • Heating fluid for example, in the form of steam at approximately 400 degrees F. is then introduced into the condensate in receiver 6 through lines 34 and 29, by opening valve 16, and it discharges into said receiver 6 through its tube 40 and its openings 41.
  • the termperature of the condensate in vessel 6 is raised, for example, from approximately 300 degrees F. to approximately 380 degrees F.
  • the valves 17, 18 and 19 remain closed.
  • Valve 20 may be opened to release vapor from receiver 5 for outside processing after said receiver is drained. This reduces the pressure inside receiver 5 , and thus reduces the power requirements of pump 1.
  • vapor from the vapor generator 202 is bled into the line 33 by opening valve 17.
  • This high pressure vapor passes into tube 40 and is discharged through the openings 41 in the tube 40 and imposes on the condensate in vessel 6 a pressure approximately equal to that existing within the vapor generator.
  • the high pressure vapor is not limited by its source. It can be bled from any adequate source, and it can be bled into the receiver without passing through a distributor to impose a vapor pressure in said receiver.
  • valves 17 and 18 are closed and the valve 19 may be opened to release vapor from the receiver 6 for external work of any useful character.
  • Figure 4B shows a fluid distributor 71 with multiple branches. It can be a vapor distributor or a liquid (or condensate) distributor.
  • pressure vessels or receivers 5d and 5c are of the same construction as shown on Figure 2 and 4B.
  • the condensate accumulating in the equipment involved (for instance, a condensate tank), represented by vessel 200, and from which condensate is to be supplied to the vapor generator 202 (a steam generator in this case), condensate is pumped by the pump 1 from the vessel 200 through the lines 25b and 25e into the distributor 46 of receiver 5d.
  • the condensate at 190 degrees F. passes through the distributor openings 47 into the chamber 206 defined by wall structure 205 to fill the vessel 5d up to the primary liquid level 43a.
  • An automatic air vent arrangement of a suitble type is provided for receivers bd and 5e; same air vents are arranged to automatically release the air contained within the receivers 5d and 5e when the receiver involved is being charged with condensate in the first operating cycle. This may be done in any suitable manner. After the first cycle the receiver 5d is charged with condensate. The relatively cooler condensate shall cool the steam through the distribution of distributor 46, and thus both the vapor pressure in the receiver and the pumping energy consumption are reduced, and the condensate is heated from 190 degrees F. to 200 degrees F.
  • Vessel 5e is filled with high pressure steam at 540 degrees F. (except first operating cycle).
  • Valve 34d is open to release high pressure vapor from vessel 5e into vessel 5d after modulators, and through one or more vapor impact modulators, and distributor 48 to inject the vapor into the condensate in vessel 5d for condensating most of the vapor and thus the condensate is heated from 200 degrees F. to 225 degrees F.
  • valve 34d is closed and valve 30d is open to release 1,000 PSIG. steam from vapor generator 202 into vessel 5d to impose a high pressure head in vessel 5d.
  • valve 38d is open and pumpb 3 pumps the heated condensate from vessel 5d into vapor generator 202 with little energy consumption.
  • Valve 40d is used to control liquid volume.
  • vessel 5d and 5e The operations of vessel 5d and 5e are the same.
  • the two vessels operate in an order of rotation.
  • Pump 3 and pump 1 are in continuous opera.tion.
  • both valves 38d and 39d open approximately 72 seconds each cycle.
  • Two seconds before one valve (38d or 39d) is closed, the other correspondent value starts to open.
  • Valve 32d, 33d and 31d operate in an order of rotation to keep pump 1 in continuous operation.
  • Both valve 32d and 33d open 57 seconds in one cycle, and valve 31d opens 32 seconds each cycle to release condensate back to vessel 200.
  • Two seconds before one valve is closed the other valve starts to open.
  • More than two pressure vessels can be used in this system. If three or more vessels are used, line 26b and valves 31n and 31d can be removed. In this operation after the condensate in one vessel is drained, the high pressure steam is then released to another pressure vessel in which the condensate has reached the liquid level.
  • More than one condensate distributor or vapor distributor can be used in one pressure vessel (only one shown in Figure 1, 5 and 5A), and one distributor may have more than one branch.
  • valve 14 is open to release high pressure steam from vessel 6 into the top portion of vessel 5 (above liquid level) for balancing the pressure head between these two vessels and then pump 2 pumps the condensate in vessel 5 into vesse16 through, one (or more) condensate distributor with multi-branches (in some cases single straight tube type can be used) to inject the cooler condensate (200 degrees F.) into the hot steam (540 degrees F.) to condense a big portion of the steam and reduce the steam pressure in vessel 5 and 6.
  • the condensate is heated from 200 degrees F. to 225 degrees F.
  • valve 14 is closed and pump 2 stops to operate after vessel 5 is drained. No heating steam is released into any pressure vessel for heating the condensate.
  • the steam in the steam generator 202 is 545 degrees F.
  • pump 3 pumps condensate from vessel 6 into two heat exchangers 303 in series and to push the heated condensate from the exchangers into steam generator 202.
  • the exchangers heat heat the condensate from 225 degrees F. (Heat exchanger 300 type can be used as exchangers 303 and 302) to 400 degrees F.
  • the heat exchanger 302 is not utilized in this case.
  • the rest of the operation is similar with system B stated in previous pages (not utilizing all heat exchangers). Two or more sets of the systems shown in Figure 5, 4B can be used in an order of rotation to insure a continuous operation of pump 3.
  • the heat exchanger 300 can be a high medium or low pressure heat exchanger.
  • the term "pump 3 pumps condensate into the vapor generator” includes all the ways that can be used to pump condensate into said generator 202 directly or indirectly.
  • the indirect way means that the pump pumps the condensate into a pressure vessel and from that vessel the condensate is drained or pumped into the generator as shown in Figure 5A. If the said vessel is used and the vessel has enough capacity of storage, the generator can receive a continuous condensate supply without using the suggested rotational methods described. Quite a number of minor changes may be employed as desirable or necessary, to meet a particular need but the basic principles of the methods herein disclosed are the same.
  • the term high pressure vapor used in this disclosure includes all types of vapor utilized, which have at least 50 PSIG. operating pressure.
  • the generator can be a heat exchangereor a boiler.
  • the piping and the valves used in accordance with the invention shall be such as to withstand the pressure and temperatures of the operational conditions encountered.
  • Stainless steel can be used in a delicate rust free operation.
  • Steel pipe manufacturers provide all particular details for any particular requirement.
  • the term "generator”, “a pump”, “a tank”, “a heat exchanger”, and “a vessel” as used herein indicates at least one of such equipment, but these terms are not limited to mean just one equipment component thereof.
  • a distributor is used to distribute relatively cooler condensate into a receiver, said condensate can cool the relatively hotter vapor therein, and thus the vapor is cooled and the vapor pressure is immediately reduced. This operation is used to reduce the condensate pumping energy by reducing the pump pressure head requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Procédés mécaniques permettant de réduire considérablement la consommation d'énergie dans le pompage de liquides à haute pression. Le procédé consiste à utiliser de la vapeur à pression élevée du côté aspiration de la pompe (1) pour réduire la charge d'eau de pompage requise. Le contenu énergétique de la vapeur à haute pression est renvoyé ou utilisé. Les échangeurs thermiques à haut rendement (302, 303) et les vases d'expansion ci-décrits permettent de réduire la quantité d'énergie requise pour le transfert de liquide vers un générateur de vapeur (202), un dispositif à haute pression ou un pipe-line étendu (37).
EP19830903251 1983-09-19 1983-09-19 Procedes et dispositif de transfert de liquides contre la resistance d'une pression elevee Withdrawn EP0156798A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1983/001419 WO1985001338A1 (fr) 1983-09-19 1983-09-19 Procedes et dispositif de transfert de liquides contre la resistance d'une pression elevee

Publications (1)

Publication Number Publication Date
EP0156798A1 true EP0156798A1 (fr) 1985-10-09

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ID=22175441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830903251 Withdrawn EP0156798A1 (fr) 1983-09-19 1983-09-19 Procedes et dispositif de transfert de liquides contre la resistance d'une pression elevee

Country Status (2)

Country Link
EP (1) EP0156798A1 (fr)
WO (1) WO1985001338A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103822202B (zh) * 2014-03-05 2015-10-21 翟永才 蒸发炉连续高效节能补液系统及其应用
CN113091044A (zh) * 2021-04-01 2021-07-09 上海美福新能源有限公司 一种节能增压补液系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US759660A (en) * 1903-11-21 1904-05-10 Theodor Brazda Apparatus for feeding water to steam-boilers.
US977841A (en) * 1910-09-06 1910-12-06 John E Rollins System of conserving hot water.
US2011626A (en) * 1934-07-09 1935-08-20 Leonard D Goff Condensate return system
US2325241A (en) * 1941-10-13 1943-07-27 Valjean Riley Automatic feeding apparatus for steam boilers
US2870751A (en) * 1955-09-06 1959-01-27 Kuljian Corp Pumpless liquid heater and translator
US3116876A (en) * 1960-05-19 1964-01-07 William W Palm Hot water heating system
US3850231A (en) * 1973-05-24 1974-11-26 Combustion Eng Lmfbr intermediate heat exchanger
DE2612081A1 (de) * 1976-03-22 1977-10-20 Kraftwerk Union Ag Dampferzeuger fuer druckwasser- kernreaktoren

Non-Patent Citations (1)

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Title
See references of WO8501338A1 *

Also Published As

Publication number Publication date
WO1985001338A1 (fr) 1985-03-28

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