CN101865453A - Steam condensate recovering device for recovering flash steam - Google Patents

Abstract

The invention belongs to a steam condensate recovering device for recovering flash steam, aiming to solve the problems existing in the prior art, such as flash steam waste, complicated devices and poor handling performance. A steam source side enters a primary ejector via a control valve and then a steam-using side and is then communicated with a pot via the electromagnetic valve of a water bump and a pressurizing inlet; the steam source side enters a secondary ejector via a steam inlet pipe and a control valve and then enters the steam sucking opening of the primary ejector via a steam outlet pipe, an electromagnetic valve is arranged at the steam sucking opening of the secondary ejector and communicated with a sucking chamber via the steam sucking opening; the sucking chamber is provided with a sucking opening and a one-way valve and communicated with a condensed water control valve via a sucking pipe, the end of the sucking pipe provided with a tee joint is connected with a softened water suction control valve, a bottom valve is arranged on the bottom of a softened water sucking pipe; a balancing pipe outlet is arranged on a water storage chamber and enters the sucking chamber via the electromagnetic valve and a balancing pipe; and an end enclosure and a quick-acting valve are arranged in the pot. The invention can be applied in the manufacturing and the use of a steam condensate recovering device to recover flash stream and save space.

Description

A kind of steam condensate recovering device of recycling flash steam

Technical field: the invention belongs to steam condensate recovering device, particularly a kind of steam condensate recovering device of recycling flash steam.

Background technology: the effective recovery of steam condensate (SC) is the common hot issue of paying close attention to of domestic and international relevant unit at present, and the method for existing employing is generally two kinds: first kind of open system.Be that steam does work in hot equipment and finishes, condensed water is directly discharged system with saturation temperature state under the operating pressure through drain valve, because of pressure is higher than standard atmospheric pressure, efflux the condensed water enthalpy and be higher than normal atmosphere and depress the water boiling point enthalpy, exceed part and produce flash steam by latent heat.This part flash steam can't be recycled, and causes waste, effluxes the condensate temperature boiling point that is near the mark simultaneously, can't use centrifugal water pump commonly used to carry (producing cavitation erosion), utilizes difficulty, and condensed water organic efficiency height is main to be guaranteed by the steam trap performance.

Second kind is closed system.Promptly adopt closed system.Adopt certain back pressure, divide multistage progressively step-down hydrophobic and to condensed water heat exchange cooling, reach the purpose of eliminating flash steam and centrifugal pump operate as normal, its shortcoming is the equipment complexity, and is handling poor, is subjected to condition restriction big, is difficult to extensive use.

Now still do not have both at home and abroad the simple and effective recovery method of desirable condensed water, external more leading domestic aspect condensate water recovery device also just individual component such as steam trap performance are higher than domestic.

Summary of the invention: purpose of the present invention is exactly to propose a kind of technical scheme of recycling the steam condensate recovering device of flash steam, and exist with the solution background technology: the flash steam of open system can't be recycled, and causes waste; The equipment complexity of closed system, handling poor, be subjected to condition restriction big, be difficult to the problem of extensive use.Solving this technical problem the technical scheme that is adopted is: a kind of steam condensate recovering device of recycling flash steam, the delivery port that this bottom of device is provided with connects the delivery port control valve, one the tunnel enters first water pump through the pump entrance valve, enter the boiler feedwater pipeline through check valve and exit of pump control valve again, another road enters second water pump through the water pump transfer valve, between second water pump pump entrance control valve and the water pump transfer valve by-passing valve of adorning in the threeway is set, be communicated with softening pond through suction hose, the suction hose bottom is provided with bottom valve, it is characterized in that main steam pipe vapour source enters the one-level ejector through the main steam control valve, enter main steam pipe vapour side again, threeway is set at main steam pipe on the vapour side and draws the pump sump forcing pipe, be communicated with the tank body water storage cavity through pump sump forcing pipe magnetic valve and pressurization inlet again; Three stimulate the menstrual flow secondary jets device steam inlet pipe and secondary jets device control valves are set on the main steam pipe vapour source enter the secondary jets device, enter the suction steam ports of one-level ejector again through secondary jets device steam outlet pipe, the suction steam ports of secondary jets device is provided with inhales the steam ports magnetic valve, is communicated with suction chamber through inhaling steam ports; Suction chamber is provided with pump orifice and pump orifice check valve, is communicated with condensed water external pipeline control valve through suction tube, and the end that threeway is set on the suction tube connects demineralized water and sucks control valve, and demineralized water suction line bottom is provided with bottom valve; The balance pipe outlet is set on the tank body water storage cavity, enters the balance suction chamber through magnetic valve, balance pipe and balance suction chamber inlet again; End socket is set in the tank body forms balance suction chamber and tank body water storage cavity, quick-acting valve is set on the end socket.Wherein, quick-acting valve is that valve rod is arranged in the middle of the valve body, valve body top is provided with fairlead by the A fastening bolt, valve body is by the edge that holds on the B fastening bolt connection end socket, hold between edge and the valve body encapsulant is set, connect spool by clamp nut on the valve rod, between spool and the valve rod boss encapsulant is set, spool and hold encapsulant is set between the edge, the valve body bottom connects fairlead down by the C fastening bolt, following fairlead center is provided with adjusts screw and locking nut, valve rod passes the adjustment screw, the center drilling of locking nut and spring pedestal, on the valve rod between spring pedestal and the spool spring is set, the valve rod bottom connects water weightening finish case by the D fastening bolt, and water weightening finish case bottom is provided with the several A spilled water hole, and some B spilled water holes are set on the following fairlead, body wall is provided with some C spilled water holes, and the upper edge of water weightening finish case is higher than the C spilled water hole.

The beneficial effect that the present invention and background technology comparison are had is: owing to adopt technique scheme, in same vapour system, under guaranteeing, the source of the gas rated pressure suitably improves operating pressure, utilize the main steam jet to produce suction force, condensed water is drawn into Water-accumulating water cylinder to be drawn into flash steam in the main steam pipe network simultaneously, main steam forms superheated steam because of the jet step-down, is mixed into saturated vapor with low-flash vapour and reaches the purpose that flash steam utilizes.Not needing to increase other power utilization main steam self power finishes the work.The condensed water that utilizes pressure reduction not have flash steam under the totally-enclosed loop of the present invention reclaims, and can effectively save the space and solve the high delivery pump of condensate temperature to produce cavitation.

Description of drawings of the present invention is as follows: Fig. 1 is a structural representation of the present invention.Fig. 2 is the structural representation of quick-acting valve of the present invention.Fig. 3 is the A-A cutaway view of Fig. 2.

The specific embodiment: with reference to figure 1, Fig. 2, Fig. 3, a kind of steam condensate recovering device of recycling flash steam, the delivery port 38 that this bottom of device is provided with connects delivery port control valve 25, one the tunnel enters first water pump 36 through pump entrance valve 37, enter boiler feedwater pipeline 33 through check valve 35 and exit of pump control valve 34 again, another road enters second water pump through water pump transfer valve 26, between second water pump pump entrance control valve 37 and the water pump transfer valve 26 by-passing valve of adorning in the threeway 27 is set, be communicated with softening pond through suction hose 28, suction hose 28 bottoms are provided with bottom valve 32, it is characterized in that main steam pipe vapour source 17 enters one-level ejector 20 through main steam control valve 18, enter main steam pipe vapour side 21 again, threeway is set at main steam pipe on vapour side 21 and draws pump sump forcing pipe 23, be communicated with tank body water storage cavity 2 through pump sump forcing pipe magnetic valve 24 and pressurization inlet 10 again; Three stimulate the menstrual flow secondary jets device steam inlet pipe 14 and secondary jets device control valves 15 are set on the main steam pipe vapour source 17 enter secondary jets device 16, enter the suction steam ports of one-level ejector 20 again through secondary jets device steam outlet pipe 19, the suction steam ports of secondary jets device 16 is provided with inhales steam ports magnetic valve 13, is communicated with suction chamber 7 through inhaling steam ports 12; Suction chamber 7 is provided with pump orifice 11 and pump orifice check valve 22, is communicated with condensed water external pipeline control valve 30 through suction tube 29, and the end that threeway is set on the suction tube 29 connects demineralized water and sucks control valve 31, and demineralized water suction line bottom is provided with bottom valve 32; Balance pipe outlet 4 is set on the tank body water storage cavity 2, enters balance suction chamber 7 through magnetic valve 3, balance pipe 8 and balance suction chamber inlet 9 again; End socket 5 is set in the tank body 1 forms balance suction chamber 7 and tank body water storage cavity 2, quick-acting valve 6 is set on the end socket 5.Wherein, quick-acting valve 6 is that valve rod 48 is arranged in the middle of the valve body 41, valve body 41 tops are provided with fairlead 39 by A fastening bolt 40, valve body 41 connects by B fastening bolt 42 and holds edge 43 on the end sockets 5, hold between edge 43 and the valve body 41 encapsulant is set, connect spool 52 by clamp nut 53 on the valve rod 48, between spool 52 and valve rod 48 boss encapsulant is set, spool 52 and hold between the edge 43 encapsulant is set, valve body 41 bottoms connect fairlead 44 down by C fastening bolt 45, following fairlead 44 centers are provided with adjusts screw 47 and locking nut 46, valve rod 48 passes adjusts screw 47, the center drilling of locking nut 46 and spring pedestal 50, on the valve rod 48 between spring pedestal 50 and the spool 52 spring 51 is set, valve rod 48 bottoms connect water weightening finish case 57 by D fastening bolt 49, and water weightening finish case 57 bottoms are provided with several A spilled water hole 56, and some B spilled water holes 55 are set on the following fairlead 44, valve body 41 sidewalls are established some C spilled water holes 54, and water weightening finish case 57 upper edges are higher than C spilled water hole 54.

Claims (2)

1. steam condensate recovering device of recycling flash steam, the delivery port (38) that this bottom of device is provided with connects delivery port control valve (25), one the tunnel enters first water pump (36) through pump entrance valve (37), enter boiler feedwater pipeline (33) through check valve (35) and exit of pump control valve (34) again, another road enters second water pump through water pump transfer valve (26), the by-passing valve of adorning in the threeway (27) is set between second water pump pump entrance control valve (37) and the water pump transfer valve (26), be communicated with softening pond through suction hose (28), suction hose (28) bottom is provided with bottom valve (32), it is characterized in that main steam pipe vapour source (17) enters one-level ejector (20) through main steam control valve (18), enter main steam pipe vapour side (21) again, threeway is set at main steam pipe on vapour side (21) and draws pump sump forcing pipe (23), be communicated with tank body water storage cavity (2) through pump sump forcing pipe magnetic valve (24) and pressurization inlet (10) again; Three stimulate the menstrual flow secondary jets device steam inlet pipe (14) and secondary jets device control valves (15) are set on the main steam pipe vapour source (17) enter secondary jets device (16), enter the suction steam ports of one-level ejector (20) again through secondary jets device steam outlet pipe (19), the suction steam ports of secondary jets device (16) is provided with inhales steam ports magnetic valve (13), is communicated with suction chamber (7) through inhaling steam ports (12); Suction chamber (7) is provided with pump orifice (11) and pump orifice check valve (22), be communicated with condensed water external pipeline control valve (30) through suction tube (29), the end that threeway is set on the suction tube (29) connects demineralized water and sucks control valve (31), and demineralized water suction line bottom is provided with bottom valve (32); Balance pipe outlet (4) is set on the tank body water storage cavity (2), enters balance suction chamber (7) through magnetic valve (3), balance pipe (8) and balance suction chamber inlet (9) again; End socket (5) is set in the tank body (1) forms balance suction chamber (7) and tank body water storage cavity (2), quick-acting valve (6) is set on the end socket (5).

2. according to the described a kind of steam condensate recovering device of recycling flash steam of claim 1, it is characterized in that quick-acting valve (6) is that valve rod (48) is arranged in the middle of the valve body (41), valve body (41) top is provided with fairlead (39) by A fastening bolt (40), valve body (41) connects by B fastening bolt (42) and holds edge (43) on the end socket (5), hold between edge (43) and the valve body (41) encapsulant is set, valve rod (48) is gone up by clamp nut (53) and is connected spool (52), between spool (52) and valve rod (48) boss encapsulant is set, spool (52) and hold between the edge (43) encapsulant is set, valve body (41) bottom connects fairlead (44) down by C fastening bolt (45), following fairlead (44) center is provided with adjusts screw (47) and locking nut (46), valve rod (48) passes adjusts screw (47), the center drilling of locking nut (46) and spring pedestal (50), on the valve rod (48) between spring pedestal (50) and the spool (52) spring (51) is set, valve rod (48) bottom connects water weightening finish case (57) by D fastening bolt (49), water weightening finish case (57) bottom is provided with several A spilled water hole (56), some B spilled water holes (55) are set on the following fairlead (44), valve body (41) sidewall is provided with some C spilled water holes (54), and the upper edge of water weightening finish case (57) is higher than C spilled water hole (54).

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