CN205892787U - Waste steam recycling device provided with deaerator - Google Patents

Abstract

The utility model discloses a waste steam recycling device provided with deaerator, including oxygen -eliminating device, steam water mixer and gas -liquid separation jar, the top of oxygen -eliminating device is equipped with vapor discharge pipe, vapor discharge pipe's the other end is connected on steam water mixer, steam water mixer's cooling water inlet is connected with the demineralized water inlet tube, steam water mixer's mixing water exit linkage has the demineralized water drain pipe, the other end of demineralized water drain pipe is connected in gas -liquid separation tank deck portion, the top of gas -liquid separation jar still is equipped with separation gas discharge pipe, the bottom of gas -liquid separation jar is equipped with the other end and connects the mixed water discharging tube on the oxygen -eliminating device, mixed water discharging tube goes up to establish ties there is the booster pump. This waste steam recycling device provided with deaerator simple structure, convenient to use can fully retrieve the exhaust steam of oxygen -eliminating device exhaust, avoids a large amount of evaporations of demineralized water in the oxygen -eliminating device extravagant.

Description

Oxygen-eliminating device steam exhaust recovering device

Technical field

This utility model is related to a kind of oxygen-eliminating device steam exhaust recovering device.

Background technology

Typically require one oxygen-eliminating device of setting in coking plant, for the demineralized water sent outside processing meanss, handle well Demineralized water is used for water on coking boiler tube water filling and wax oil steam generator；Demineralized water and oxygen-eliminating device is operationally, in oxygen-eliminating device Water temperature should control at 105 DEG C about, and operating pressure is 0.05mpa, thus discharging the dissolved oxygen being dissolved in demineralized water, separately Outward, in order to the dissolved oxygen of discharge is discharged oxygen-eliminating device immediately, the valve at oxygen-eliminating device top need to be in normally opened emptying state, therefore, Cause substantial amounts of vapor in oxygen-eliminating device also to enter air simultaneously, cause demineralized water to evaporate in a large number, cause loss to waste.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of structure simple, easy to use, can be to oxygen-eliminating device exhaust steam The oxygen-eliminating device steam exhaust recovering device fully being reclaimed.

For solving above-mentioned technical problem, this utility model includes oxygen-eliminating device, steam heater and knockout drum, its structure Feature is: the top of described oxygen-eliminating device is provided with vapour-discharge tube, and the other end of described vapour-discharge tube is connected to steam heater On；The cooling water inlet of described steam heater is connected with demineralized water water inlet pipe, and the mixed water exports of described steam heater connect There is demineralized water drain pipe, the other end of described demineralized water drain pipe is connected to gas-liquid separation tank top；Described knockout drum Top is additionally provided with and separates gas discharge pipe, and the bottom of described knockout drum is provided with the mixing water row that the other end is connected on oxygen-eliminating device Outlet pipe, described mixing water discharge pipe is in series with booster pump.

After said structure, the vapor in oxygen-eliminating device enters soda pop together with dissolved oxygen therein by vapour-discharge tube In blender, meanwhile, steam heater flows into the demineralized water of low temperature, and therefore water vapour with demineralized water condensation by mixing and forms low temperature Mixing water and gas, entered in knockout drum together by demineralized water drain pipe afterwards, and realize gas and mix moisture From afterwards, the gas of low temperature can be mingled with a small amount of vapor and enter air from separation gas discharge pipe, and accumulates in gas-liquid separation Mixing water in tank then by mix water discharge pipe on booster pump draw it out and again pump in oxygen-eliminating device, this mixing water with Original demineralized water entering in oxygen-eliminating device is used for coking boiler tube water filling and wax oil steam generator after oxygen-eliminating device again deoxygenation Upper water.

In order to into steam heater, injection is only capable of meeting the demineralized water cooling down needed for vapor and condensing, described remove It is in series with regulating valve on saline water inlet pipe；It is connected with thermometer on described demineralized water drain pipe.

In order to can automatic control and adjustment valve unlatching size, described regulating valve be electrodynamic valve, the control end of described electrodynamic valve It is electrically connected with the controller；Described temperature is calculated as temperature sensor, and its signal output part is electrically connected with the controller.

In order to continue to ensure that desalination water energy passes through other pipelines entrance steam heater after regulating valve is damaged, described remove The bypass pipe being arranged in parallel with regulating valve is additionally provided with saline water inlet pipe, described bypass pipe is in series with the first control valve.

Observe the liquid level of mixing water in knockout drum for convenience, described knockout drum is provided with convenient observation and mixes The liquid level instrument of water storage.

Accumulate to after certain liquid level to realize mixing water, booster pump can be automatically turned on and extracted, described liquid level instrument For liquid level sensor, its signal output part is electrically connected with the controller, and the control end of described booster pump is electrically connected with the controller.

Backflow, the mixing water between booster pump and oxygen-eliminating device in mixing water in order to avoid pumping out from booster pump First check valve is in series with discharge pipe pipeline section.

Backflow in vapor in order to avoid discharging from oxygen-eliminating device, described vapour-discharge tube is in series with second unidirectional Valve.

In order to disconnect the connection of steam exhaust recovering device and oxygen-eliminating device, positioned at the steam row between the second check valve and oxygen-eliminating device Second control valve is in series with outlet pipe pipeline section；Connect on mixing water discharge pipe pipeline section between the first check valve and oxygen-eliminating device There is the 3rd control valve.

In order to, after steam exhaust recovering device is disconnected with oxygen-eliminating device, the vapor in oxygen-eliminating device still can smoothly be discharged, The top of described oxygen-eliminating device is provided with steam evacuation pipe, and described steam evacuation pipe is in series with the 4th control valve.

In sum, this utility model structure is simple, easy to use, and the exhaust steam that oxygen-eliminating device can be discharged fully is returned Receive, it is to avoid in oxygen-eliminating device, a large amount of evaporations of demineralized water waste.

Brief description

With reference to the accompanying drawings and detailed description this utility model is described in further detail:

Fig. 1 is structural representation of the present utility model.

Specific embodiment

Referring to the drawings, this oxygen-eliminating device steam exhaust recovering device includes oxygen-eliminating device 1, steam heater 2 and knockout drum 3, should Oxygen-eliminating device 1, steam heater 2 and knockout drum 3 are prior art, and its structure and working principle will not be described in detail herein；Should The desalination water supplying pipe entering the demineralized water that temperature is 20 degree of -30 degree left and right in oriented oxygen-eliminating device 1 is accordingly connected on oxygen-eliminating device 1 21, therefore, substantial amounts of demineralized water enters in oxygen-eliminating device 1 and is heated to 105 degree about, and keeps operating pressure to be that 0.05mpa is left The right side, thus discharging the dissolved oxygen being dissolved in demineralized water, afterwards, the demineralized water handled well is discharged oxygen-eliminating device 1 and is used for coking boiler tube Water in water filling and wax oil steam generator, but in oxygen removal process, demineralized water is heated thus producing temperature in a large number in oxygen-eliminating device 1 Spend the water vapour at 170 degree about, in order to be collected the demineralized water in vapor, the top of this oxygen-eliminating device 1 is connected with steaming Vapour discharge pipe 4, the other end of vapour-discharge tube 4 is connected on the steam inlet end of steam heater 2；This steam heater 2 Cooling water inlet is connected with demineralized water water inlet pipe 5, and this demineralized water water inlet pipe 5 can directly be drawn from desalination water supplying pipe 21 Article one, branched pipe, secondly, the mixed water exports of steam heater 2 are connected with demineralized water drain pipe 6, demineralized water drain pipe 6 another One end is connected to knockout drum 3 top；In addition, the top of this knockout drum 3 is also connected with separating gas discharge pipe 7, separate gas Discharge pipe 7 is in normally open, and the bottom of knockout drum 3 is provided with the other end and is connected to the mixing water discharge pipe on oxygen-eliminating device 1 8, mixing water discharge pipe 8 is in series with booster pump 9.Therefore, when about 170 degree about in oxygen-eliminating device 1 of vapor is together with therein When dissolved oxygen is entered in steam heater 2 by vapour-discharge tube 4, accordingly, steam heater 2 also flows into 20 degree of -30 degree left side Right demineralized water, therefore high-temperature water vapor with low temperature demineralized water condensation by mixing and form 70 degree about of mixing water and gas, it Entered together in knockout drum 3 by demineralized water drain pipe 6 afterwards, and realize gas and mix moisture from, afterwards, the gas of low temperature Know from experience and be mingled with a small amount of vapor and enter air from separating gas discharge pipe 7, and accumulate in mixing water in knockout drum 3 then Draw it out and again pump in oxygen-eliminating device 1 by mixing the booster pump 9 on water discharge pipe 8, this mixing water is supplied with demineralized water Demineralized water in pipe 21 is used for water on coking boiler tube water filling and wax oil steam generator after oxygen-eliminating device 1 again deoxygenation.

With continued reference to accompanying drawing, it is only capable of meeting the demineralized water cooling down needed for vapor and condensing to inject, thus avoiding Many demineralized waters enter the work load that steam heater 2 causes follow-up knockout drum 3 and booster pump 9, demineralized water water inlet pipe 5 On be in series with regulating valve 10, this preferred electrodynamic valve of regulating valve 10, the control end of this electrodynamic valve is electrically connected with the controller；Secondly, exist Thermometer 11 is connected with demineralized water drain pipe 6, this thermometer 11 preferable temperature sensor, its signal output part also with controller Electrical connection；Due to can ensure in high-temperature vapor after the mixing water that steam heater 2 is discharged and gas are 70 degree about Temperature change in demineralized water drain pipe 6 can be fed back to controller by the sufficiently cool condensation of water droplet, therefore this temperature sensor, control Device processed accordingly controls to adjust the openings of sizes of valve 10 again it is ensured that fully reclaiming the water droplet in vapor；Can certainly be by seeing Examine the change of thermometer 11 and adopt the pure artificial operator scheme of Non-follow control regulating valve 10.Secondly, in order to avoid regulating valve 10 Can continue after damage to ensure that desalination water energy enters steam heater 2 by other pipelines, demineralized water water inlet pipe 5 be additionally provided with and adjusts The bypass pipe 12 that section valve 10 is arranged in parallel, bypass pipe 12 is accordingly in series with the first control valve 13.

With continued reference to accompanying drawing, observe the liquid level of mixing water in knockout drum 3 for convenience, knockout drum 3 is installed There is liquid level instrument 14, liquid level instrument 14 is preferably liquid level sensor, its signal output part can be electrically connected with the controller, accordingly, The control end of booster pump 9 is also electrically connected with the controller, therefore, after the mixing water in knockout drum 3 accumulates to certain liquid level, Booster pump 9 can be automatically turned on extracted；In addition, backflow in the mixing water in order to avoid pumping out from booster pump 9, positioned at increasing It is in series with the first check valve 15 on mixing water discharge pipe 8 pipeline section between press pump 9 and oxygen-eliminating device 1；This first check valve 15 and increasing Press pump 9 can be two sets being arranged in parallel, thus after avoiding wherein a set of damage, another set of continuation can be relied on to extract work.

With continued reference to accompanying drawing, flowing back also occurs in the vapor in order to avoid discharging from oxygen-eliminating device 1, on vapour-discharge tube 4 It is in series with the second check valve 16；In addition, connecting on vapour-discharge tube 4 pipeline section being located between the second check valve 16 and oxygen-eliminating device 1 There is the second control valve 17, on mixing water discharge pipe 8 pipeline section between the first check valve 15 and oxygen-eliminating device 1, be in series with the 3rd control Valve 18 processed, therefore, can by completely close the second control valve 17 and the 3rd control valve 18 can be fully disconnected steam exhaust recovering device with The connection of oxygen-eliminating device 1；Secondly, in order to after steam exhaust recovering device is disconnected with oxygen-eliminating device 1, vapor in oxygen-eliminating device 1 according to So can smoothly discharge, the top of oxygen-eliminating device 1 is provided with steam evacuation pipe 19, and steam evacuation pipe 19 is in series with the 4th control valve 20.

In sum, this utility model is not limited to above-mentioned specific embodiment.Those skilled in the art, without departing from this reality On the premise of new spirit and scope, some changes and modification can be done.Protection domain of the present utility model should be with this reality It is defined with new claim.

Claims (10)

1. a kind of oxygen-eliminating device steam exhaust recovering device, including oxygen-eliminating device (1), steam heater (2) and knockout drum (3), it is special Levy and be: the top of described oxygen-eliminating device (1) is provided with vapour-discharge tube (4), the other end of described vapour-discharge tube (4) is connected to vapour On water mixer (2)；The cooling water inlet of described steam heater (2) is connected with demineralized water water inlet pipe (5), described steam heater (2) mixed water exports are connected with demineralized water drain pipe (6), and the other end of described demineralized water drain pipe (6) is connected to gas-liquid and divides From tank (3) top；The top of described knockout drum (3) is additionally provided with and separates gas discharge pipe (7), described knockout drum (3) Bottom is provided with the mixing water discharge pipe (8) that the other end is connected on oxygen-eliminating device (1), and described mixing water discharge pipe (8) is in series with Booster pump (9).

2. oxygen-eliminating device steam exhaust recovering device as claimed in claim 1 it is characterised in that: described demineralized water water inlet pipe (5) is upper to be gone here and there It is associated with regulating valve (10)；It is connected with thermometer (11) on described demineralized water drain pipe (6).

3. oxygen-eliminating device steam exhaust recovering device as claimed in claim 2 it is characterised in that: described regulating valve (10) be electrodynamic valve, The control end of described electrodynamic valve is electrically connected with the controller；Described thermometer (11) is temperature sensor, its signal output part and control Device electrical connection processed.

4. oxygen-eliminating device steam exhaust recovering device as claimed in claim 2 it is characterised in that: described demineralized water water inlet pipe (5) is upper also It is provided with the bypass pipe (12) being arranged in parallel with regulating valve (10), described bypass pipe (12) is in series with the first control valve (13).

5. oxygen-eliminating device steam exhaust recovering device as claimed in claim 1 it is characterised in that: described knockout drum (3) is provided with The convenient liquid level instrument (14) observing mixing water storage.

6. oxygen-eliminating device steam exhaust recovering device as claimed in claim 5 it is characterised in that: described liquid level instrument (14) be liquid level pass Sensor, its signal output part is electrically connected with the controller, and the control end of described booster pump (9) is electrically connected with the controller.

7. described oxygen-eliminating device steam exhaust recovering device as arbitrary in claim 1-6 it is characterised in that: positioned at booster pump (9) with remove It is in series with the first check valve (15) on mixing water discharge pipe (8) pipeline section between oxygen device (1).

8. described oxygen-eliminating device steam exhaust recovering device as arbitrary in claim 1-6 it is characterised in that: described vapour-discharge tube (4) On be in series with the second check valve (16).

9. oxygen-eliminating device steam exhaust recovering device as claimed in claim 8 it is characterised in that: positioned at the second check valve (16) and deoxygenation It is in series with the second control valve (17) on vapour-discharge tube (4) pipeline section between device (1)；Positioned at the first check valve (15) and oxygen-eliminating device (1) it is in series with the 3rd control valve (18) on mixing water discharge pipe (8) pipeline section between.

10. the oxygen-eliminating device steam exhaust recovering device as described in claim 1-6 it is characterised in that: the top of described oxygen-eliminating device (1) sets There is steam evacuation pipe (19), described steam evacuation pipe (19) is in series with the 4th control valve (20).