CN113896270B - Integrated intelligent combined type analytic deoxidizing device - Google Patents
Integrated intelligent combined type analytic deoxidizing device Download PDFInfo
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- CN113896270B CN113896270B CN202111322421.2A CN202111322421A CN113896270B CN 113896270 B CN113896270 B CN 113896270B CN 202111322421 A CN202111322421 A CN 202111322421A CN 113896270 B CN113896270 B CN 113896270B
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The invention discloses an integrated intelligent composite analytic deoxidizing device, and mainly relates to the field of analytic deoxidizing equipment. The device comprises a deoxidizing water pump and a jet device, wherein a water outlet of the jet device is connected with a heater, the heater is connected with a heat exchanger through a pipeline, a water outlet of the heat exchanger is connected with a water impurity remover, the water impurity remover is connected with an analysis deoxidizer, the bottom of the analysis deoxidizer is a treated water cavity, the treated water cavity is provided with an outlet end, and the uppermost part of a cavity of the analysis deoxidizer is connected with a small-diameter steam-water conveying pipe. The invention has the beneficial effects that: the device can realize two-stage deep deoxidization, can intelligently measure the deoxidization effect, and intelligently control reworking secondary deoxidization when the deoxidization effect is poor; the device can automatically detect dissolved oxygen, flow rate, pipe orifice pressure, temperature and the like, automatically monitor and analyze the blockage of the deoxidization pipeline and control back flushing, realize automatic supervision and intelligent operation, and greatly reduce labor cost.
Description
Technical Field
The invention relates to the field of analytic deoxidizing equipment, in particular to an integrated intelligent compound analytic deoxidizing device; in particular to the oxygen content of boiler water and air conditioner circulating water, which is treated by the device to lead the water quality to reach the water standard of the related industries of China.
Background
The amount of dissolved oxygen in water is a major factor in corrosion of boilers, heat exchangers and pipe networks. And the corrosion not only wastes resources and energy, but also brings the operation safety of water using equipment.
Analytical deoxidizing device is studied in China since 1988, and dissolved oxygen in water is separated out by using 'Henry' law. However, no enterprise can form a perfect product structure and batch production, and the expected deoxidization effect is not achieved, because the water quality is complex and the treatment is single, and the requirement of removing the oxygen content in the water cannot be met.
The existing deoxidizing equipment such as rotary film treatment is large and high in size, and inconvenient to transport, install and maintain. And for example, the sponge iron mechanical filter tank is back-flushed, so that a large amount of water resources are wasted, the filler is not easy to replace, the treatment is single, and the deoxidization effect is often not ideal.
For example, in the existing analytic deoxidizing system, the deoxidizing water pump sends softened water into the ejector, the ejector sprays water downwards and simultaneously sucks oxygen-free gas nitrogen in the heat exchanger, water and gas are mixed intensively, at the moment, the partial pressure of oxygen is close to zero, oxygen dissolved in the water is separated out and diffused into the oxygen-free gas according to the henry principle, when the mixed gas with oxygen passes through the heat exchanger and the reactor, the oxygen is absorbed by the active deoxidizing reactant, and the softened water passes through the principle of the process, wherein the dissolved oxygen is removed to become the oxygen-free water.
To sum up, current analytic deoxidization equipment only can play disposable preliminary deoxidization, and its deoxidization effect is only through the mode of artifical sample valve sample detection survey deoxidization effect, and reworking secondary deoxidization is again when deoxidization effect is not good, receives the influence of human factor, and the oxygen content in the anaerobic water after the analytic deoxidization is long can not reach the standard, brings inconvenience for the management. In addition, the prior analytic deoxidizing equipment also contains more impurities in the softened water, and does not have corresponding impurity removing equipment for synchronous impurity removal. And the existing analytic deoxidizing equipment cannot fully recycle the oxygen-free gas, so that the analytic deoxidizing cost is increased. Most importantly, the existing analytic deoxidizing equipment needs personnel to monitor, manage and control sampling and the like, so that automatic supervision and intelligent operation are far less achieved, and the equipment is lagged, so that the labor cost is increased.
Disclosure of Invention
The invention aims to provide an integrated intelligent composite type analytic deoxidizing device which can realize two-stage deep deoxidization (namely, preliminary deoxidization by reducing solubility and chemical deep deoxidization), can intelligently measure deoxidization effect, intelligently control reworking secondary deoxidization when the deoxidization effect is poor, eliminate the influence of human factors and save labor cost; more impurities contained in the softened water can be synchronously removed in the process of desorption and deoxidation; fully recycling the oxygen-free gas to reduce the analytic deoxidization cost; the device can automatically detect dissolved oxygen, flow rate, pipe orifice pressure, temperature and the like, automatically monitor and analyze the blockage of the deoxidization pipeline and control back flushing, realize automatic supervision, intelligent operation, advanced device and greatly reduce labor cost.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:
the integrated intelligent combined type analytic deoxidizing device comprises a deoxidizing water pump and a jet device, wherein water inlet ports of the deoxidizing water pump and the jet device are connected through a water inlet pipe. The water outlet of the ejector is connected with the water inlet of the heater through the water injection pipeline, the water flow is emitted from the water outlet of the ejector to form certain negative pressure, the suction end of the ejector can suck anaerobic gas and trace water vapor from the reactor under negative pressure, the anaerobic gas, the trace water vapor and the water to be deoxidized fully realize strong water-vapor mixing, the partial pressure of oxygen is close to zero, and oxygen dissolved in the water is separated out and diffused into the anaerobic gas according to the henry principle, so that the purpose of reducing the solubility and primarily deoxidizing is achieved to a certain extent.
The heater is internally provided with a heating rod, a water outlet at the side part above the heater is connected with a water inlet of a heat exchanger through a pipeline, and a gas release valve is arranged in a space right above the heater. An electric heating rod is arranged in the heater, the surface temperature of the electric heating rod in the heater is high, dissolved oxygen originally saturated in water is separated out and adhered to the heating rod, and then the dissolved oxygen is added into steam and discharged through a release valve arranged right above the heater, so that the effect of reducing the solubility in depth and primarily deoxidizing is achieved.
The water quality impurity remover comprises a shell, a water inlet and a water outlet, wherein a heat exchange pipe section is arranged in the shell of the heat exchanger, the water temperature is greatly increased after the heat exchange pipe section is heated by a heater, the heat exchange pipe section is used for cooling water to be treated, the two sides of the heat exchange pipe section are respectively connected with the water inlet and the water outlet of the heat exchanger, the water outlet is connected with the liquid inlet of the water quality impurity remover through pipelines, and the liquid outlet of the water quality impurity remover is connected with the inlet end of the analytic deaerator. And (5) carrying out water quality impurity removal on the cooled water in a water quality impurity remover.
The bottom of the analytic deaerator is provided with a treated water cavity, one side of the treated water cavity is provided with an outlet end, the treated water cavity is separated from the chamber of the analytic deaerator by a partition plate, the chamber of the analytic deaerator is internally provided with deoxidizing filler, and the deoxidizing filler is sponge iron filler. The oxygen-removing filler bottom is supported through a lower baffle water distributor, an upper baffle is arranged at the top of the oxygen-removing filler, the inlet end is positioned between the lower baffle water distributor and the partition plate, a water pipe is arranged in the analysis oxygen-removing device, the bottom end of the water pipe is communicated with the water cavity after treatment, the top end of the water pipe is positioned in the analysis oxygen-removing device top space at the top of the upper baffle, the analysis oxygen-removing device top space at the top of the upper baffle is conical, the uppermost part of the top space is connected with a small-diameter steam-water conveying pipe, the diameter of the small-diameter steam-water conveying pipe is far smaller than that of the water pipe, and the small-diameter steam-water conveying pipe is connected with a steam-water separator. The water after impurity removal of the activated carbon enters from the inlet end of the analytic deaerator, and the lower baffle plate water distributor is provided with a uniform water distribution spray head which can spray water flow at high speed to form water vapor, so that the contact area with the sponge iron filler is enlarged, and more thorough chemical deaeration is performed. The top space of the analytic deaerator at the top of the upper baffle plate is conical, gas in water is discharged from a conical gas port to a small-diameter steam-water conveying pipe, and no gas water flows in from the top of the water conveying pipe and flows to the treated water cavity through the water conveying pipe. The small-diameter steam-water conveying pipe flows the air-water mixture into the steam-water separator.
The water separating pipe of the steam-water separator is communicated with the top of the shell of the heat exchanger, and water separated by the steam-water separator flows into the shell of the heat exchanger and is mixed into the heat exchange cold water domain for heat exchange.
The separation air pipe of the steam-water separator is communicated with the bottom of the reactor, the oxygen-free gas separated by the steam-water separator is recycled to the reactor, deoxygenation filler is also arranged in the reactor, and the bottom of the deoxygenation filler is supported by a lower baffle plate. The top of the reactor is connected with the suction end of the ejector through a negative pressure suction pipeline. Under the action of negative pressure formed by the ejector, the recovered anaerobic gas and trace water vapor flow into the suction end of the ejector from the negative pressure suction pipeline, so that the anaerobic gas and trace water vapor are fully mixed with water to be deoxygenated, and are used for the subsequent analytic deoxygenation process again.
The water cavity after treatment is internally provided with a water outlet dissolved oxygen detector, and the water outlet dissolved oxygen detector detects whether the dissolved oxygen in water at the outlet end is deoxidized and reaches the standard. The combined type analytic deoxidization device further comprises an original deoxidization water tank and a deoxidization water tank, the deoxidization water pump is connected with the original deoxidization water tank through a pipeline, the outlet end of the treated water cavity is connected with the deoxidization water tank, the deoxidization water tank is connected with the original deoxidization water tank through a secondary through pipe, and the secondary through pipe is provided with a secondary deoxidization electromagnetic valve and a secondary deoxidization pump; the water outlet dissolved oxygen detector is in signal connection with a PLC system in the power electric cabinet, and the water outlet dissolved oxygen detector controls the connection and the disconnection of the secondary deoxidization electromagnetic valve through the PLC system;
when the outlet water dissolved oxygen detector detects that the dissolved oxygen in the water sample after the outlet end is analyzed and deoxidized is detected to be qualified, the water sample in the water tank after deoxidization is indicated to be qualified, and the secondary deoxidization electromagnetic valve is kept in a closed state, so that secondary deoxidization is not needed; when the outlet water dissolved oxygen detector detects that the dissolved oxygen in the water sample after the outlet end is analyzed and deoxidized is unqualified in detection, the water sample in the water tank after the deoxidization shows unqualified, a secondary deoxidization electromagnetic valve between the water tank after the deoxidization and the original water tank to be deoxidized is opened, a secondary through pipe is connected, and the unqualified water sample in the water tank after the deoxidization is pumped to the original water tank to be deoxidized through a secondary deoxidization pump and then subjected to secondary circulation secondary deoxidization.
The water inlet pipe is provided with a water inlet pressure sensor, the outlet end of the treated water cavity is provided with a water outlet pressure sensor, and the water inlet pressure sensor and the water outlet pressure sensor are both in signal connection with a PLC system in the power electric cabinet;
when the pressure difference between the water inlet pressure sensor and the water outlet pressure sensor is in a normal range, an alarm on the PLC system does not alarm;
when the pressure difference between the water inlet pressure sensor and the water outlet pressure sensor exceeds the normal range, an alarm on the PLC system gives an alarm, so that the pipeline needs to be backwashed, and if the pipeline is blocked after backwashed, the pipeline needs to be overhauled. The pressure difference in the normal range is 2 kg, if the pressure difference is more than 4 kg, the analysis pipeline is blocked, and an alarm is given. The realization of back flushing needs to arrange a valve combination in the analysis deoxidization pipeline, and the specific arrangement is as follows:
the water inlet pipe is provided with an A electromagnetic valve, the water injection pipe is provided with a D three-way electromagnetic valve, a third pipe orifice of the D three-way electromagnetic valve is connected with a flushing water pump through a pipeline, the water inlet of the heater is provided with a B electromagnetic valve, the outlet end of the treated water cavity is provided with a C electromagnetic valve, and the bottom of the heater is provided with an E electromagnetic valve; the bottom side of the heat exchanger is communicated with the bottom side of the reactor through a communicating pipe, an F electromagnetic valve is arranged on the communicating pipe, an air pipe between the separation air pipe and the bottom of the reactor is connected with a G electric air valve, and the A electromagnetic valve, the D three-way electromagnetic valve, the B electromagnetic valve, the C electromagnetic valve, the E electromagnetic valve, the F electromagnetic valve and the G electric air valve are all in signal connection with a PLC system in the power electric cabinet;
when the pressure difference between the water inlet pressure sensor and the water outlet pressure sensor is in a normal range, an alarm on the PLC system does not alarm; the PLC system controls the opening of the electromagnetic valve A, the electromagnetic valve B, the electromagnetic valve C and the electric air valve G, the closing of the third pipe orifice of the three-way electromagnetic valve D, the electromagnetic valve E and the electromagnetic valve F, and the normal operation of the deaeration pipeline is analyzed;
when the pressure difference between the water inlet pressure sensor and the water outlet pressure sensor exceeds the normal range, after an alarm on the PLC system gives an alarm, the PLC system controls the A electromagnetic valve, the B electromagnetic valve, the C electromagnetic valve and the G electric air valve to be closed, the third pipe orifice of the D three-way electromagnetic valve, the E electromagnetic valve and the F electromagnetic valve are opened, and the analysis deoxidization pipeline is backwashed through the flushing water pump. The top of the deoxidizing filler in the reactor is provided with an upper baffle plate water distributor, the upper baffle plate water distributor is provided with a uniform water distribution spray head, and the uniform water distribution spray head can turn water into water mist during back flushing, so that the filler is thoroughly cleaned.
The outlet end of the processed water cavity is provided with a flow sensor, the flow sensor is connected with a PLC system in the power electric cabinet, and the flow sensor controls the heating state of the heater through the PLC system. The flow sensor is used for detecting the flow of water and whether the water flows or not, and the flow sensor indicates that the analysis deoxidization work is performed under the condition that the water flows, and the heater keeps a heating state; if no water flow is detected, the heater is released from heating, and the heater is protected from dry heating.
The outlet end of the processed water cavity is provided with a temperature sensor, the temperature sensor is in signal connection with a PLC system in the power electric cabinet, and the temperature sensor controls heat exchange and cooling of the heat exchanger through the PLC system. The temperature sensor is arranged at the outlet end of the processed water cavity and used for detecting the water temperature at the outlet end, and if the water temperature at the outlet end is too high, the information is fed back to the PLC system in the power electric cabinet, and the PLC system in the power electric cabinet controls the heat exchanger to carry out deep cooling.
The heater controls the heating temperature through a temperature control cabinet; and the water impurity remover and the analytic deaerator are respectively provided with a filler opening and a discharge opening, and the filler opening and the discharge opening are respectively used for filling filler and cleaning filler. The bottom of the treated water cavity is also provided with a sampling valve, and the sampling valve is used for sampling the deoxygenated water quality.
The pressure relief pipeline is communicated with the original deaerated water tank, the pressure relief pipeline is provided with a pressure relief electromagnetic valve, and the pressure of the pressure relief electromagnetic valve is controlled by a water inlet pressure sensor.
Compared with the prior art, the invention has the beneficial effects that:
this analytic deoxidization equipment can realize two-stage degree of depth deoxidization, namely: preliminary deoxidization and chemical deep deoxidization of the solubility are reduced, namely: the oxygen-free gas and trace water vapor are inhaled through the ejector, the oxygen-free gas, the trace water vapor and the water to be deoxygenated are fully mixed with water and air, the purpose of reducing the solubility to perform preliminary deoxygenation is achieved to a certain extent, the surface temperature of an electric heating rod in the heater is high, dissolved oxygen originally saturated in water is separated out and adhered to the heating rod, and then the dissolved oxygen is added into steam to be discharged through a gas release valve arranged right above the heater, so that the effect of reducing the solubility to perform preliminary deoxygenation is achieved. In the analytic deaerator, the water distribution spray head on the lower baffle plate water distributor can spray water flow at high speed to form water vapor, so that the contact area with the sponge iron filler is enlarged, and more thorough chemical deaeration is performed.
In addition, more impurities in the softened water can be removed by synchronous adsorption of active carbon filler in the water impurity remover in the process of desorption and deoxidation.
The oxygen removal effect can be intelligently measured through the effluent dissolved oxygen detector, and reworking secondary oxygen removal can be intelligently controlled when the oxygen removal effect is poor, so that the influence of human factors is eliminated, and the labor cost is saved.
The oxygen-free gas is fully recycled in the Huizhou reactor, so that the analysis deoxidization cost is reduced. The device is provided with a water outlet dissolved oxygen detector, a flow sensor, a water inlet pressure sensor, a water outlet pressure sensor and a temperature sensor, so that the dissolved oxygen detection, the flow monitoring, the pipe orifice pressure detection, the temperature detection and the like can be automatically carried out.
The blockage of the analysis deoxidization pipeline is automatically monitored by the water inlet pressure sensor and the water outlet pressure sensor, an electromagnetic valve group is arranged in the analysis deoxidization pipeline, and each electromagnetic valve of the electromagnetic valve group is controlled to be opened and closed for backwash control, so that automatic supervision, intelligent operation, advanced equipment and greatly reduced labor cost are realized.
Drawings
FIG. 1 is a block diagram of an analytical deoxygenation device of the present invention.
FIG. 2 is a diagram of the pipeline of the invention when oxygen removal is normally analyzed.
FIG. 3 is a diagram of the piping of the present invention when back flushing is performed.
FIG. 4 is a schematic diagram of a resolved deoxygenator in accordance with the present invention.
The reference numbers shown in the drawings:
1. deoxidizing water pump; 2. a jet device; 3. a water inlet port; 4. a water inlet pipe; 5. a water outlet port; 6. a water injection pipeline; 7. a heater; 8. a water inlet; 9. a heating rod; 10. a water outlet; 11. a heat exchanger; 12. a water inlet; 13. a release valve; 14. a heat exchange tube section; 15. a water outlet; 16. a water quality impurity remover; 17. a liquid inlet pipe orifice; 18. a liquid outlet pipe orifice; 19. analyzing the deaerator; 20. an inlet end; 21. a water cavity after treatment; 22. an outlet end; 23. a partition plate; 24. deoxidizing filler; 25. a lower baffle plate water distributor; 26. a material baffle plate is arranged; 27. a water pipe; 28. a small-diameter steam-water conveying pipe; 29. a steam-water separator; 30. separating the water pipe; 31. separating the air pipe; 32. a lower baffle plate; 33. a water-out dissolved oxygen detector; 34. the original deoxidized water tank; 35. a deoxidized water tank; 36. a secondary through pipe; 37. a secondary deoxidizing electromagnetic valve; 38. a secondary deoxidizing pump; 39. a power electric cabinet; 40. a flow sensor; 41. a water inlet pressure sensor; 42. a water outlet pressure sensor; 43. a temperature sensor; 44. a, an electromagnetic valve; 45. d, a three-way electromagnetic valve; 46. a flushing water pump; 47. b, an electromagnetic valve; 48. c, an electromagnetic valve; 49. e, electromagnetic valve; 50. a communicating pipe; 51. f, electromagnetic valve; 52. g, an electric air valve; 53. a water distributor of the upper baffle plate; 54. a uniform water distribution spray head; 55. a temperature control cabinet; 56. a filler port; 57. a discharge port; 58. a sampling valve; 59. a reactor; 60. a negative pressure suction pipe; 61. a pressure relief pipeline; 62. a pressure relief solenoid valve.
Detailed Description
The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the invention, and such equivalents are intended to fall within the scope of the invention as defined herein.
The invention discloses an integrated intelligent composite analytic deoxidizing device, which comprises a deoxidizing water pump 1 and a jet device 2, wherein the deoxidizing water pump 1 is connected with a water inlet port 3 of the jet device 2 through a water inlet pipe 4. The main innovative design points of the technical scheme are as follows:
the water outlet 5 of the ejector 2 is connected with the water inlet 8 of the heater 7 through the water injection pipeline 6, when the water outlet 5 of the ejector 2 passes through 0.6Mpa, a certain negative pressure is formed, the suction end of the ejector 2 is connected with the top of the reactor through a negative pressure suction pipeline, oxygen-free gas and trace water vapor can be sucked from the reactor under negative pressure, the oxygen-free gas and the trace water vapor are fully deoxidized by the deoxidizing filler 24 in the reactor, the oxygen-free gas, the trace water vapor and the water to be deoxidized fully realize 'water-gas intensive mixing', the partial pressure of oxygen is close to zero, oxygen dissolved in the water is separated out and diffused into the oxygen-free gas according to the henry principle (namely, the solubility of the oxygen in the water is proportional to the partial pressure of the oxygen, the partial pressure of the oxygen is reduced, the solubility of the oxygen can be reduced), the purpose of reducing the solubility of the oxygen is achieved, the preliminary deoxidization is achieved, but the effect is not good, and a lot of dissolved oxygen is still available in the water. The heater 7 is added later.
The heater 7 is internally provided with a heating rod 9, a water outlet 10 at the side part above the heater 7 is connected with a water inlet 12 of a heat exchanger 11 through a pipeline, and a gas release valve 13 is arranged in a space right above the heater 7. The electric heating rod 9 is arranged in the heater 7, water rapidly flows through the electric heating pipe at 1000 ℃, and as the dissolution amount of gas in the water is inversely proportional to the temperature, namely the higher the temperature is, the lower the dissolution amount is, the higher the surface temperature of the electric heating rod 9 in the heater 7 is, the originally saturated dissolved oxygen in the water is separated out and adhered to the heating rod 9, and then the dissolved oxygen is added into steam to be discharged through the air release valve 13 arranged right above the heater 7, so that the preliminary deoxidization effect of the solubility is reduced.
The inside heat transfer pipeline section 14 that is equipped with of casing at heat exchanger 11, the temperature risees by a wide margin after the heating of heater 7, and heat transfer pipeline section 14 carries out the cooling of waiting to handle water, and heat transfer pipeline section 14 both sides are connected respectively inlet 12 and the water outlet 15 of heat exchanger 11, water outlet 15 passes through the pipeline and is connected with the inlet pipe mouth 17 of water quality edulcoration ware 16, the outlet pipe mouth 18 of water quality edulcoration ware 16 is connected with the entrance point 20 of resolution deaerator 19. The cooled water is subjected to water quality impurity removal in a water quality impurity remover 16, and an activated carbon filler is arranged in the water quality impurity remover 16 and is used for removing impurities in water and water vapor through activated carbon impurity removal.
The bottom of the analytic deaerator 19 is provided with a treated water cavity 21, one side of the treated water cavity 21 is provided with an outlet end 22, the treated water cavity 21 is separated from the chamber of the analytic deaerator 19 by a baffle plate 23, the chamber of the analytic deaerator 19 is internally provided with deoxidizing filler 24, and the deoxidizing filler 24 is sponge iron filler. The bottom of the deoxidizing filler 24 is supported by a lower baffle water distributor 25, an upper baffle 26 is arranged at the top of the deoxidizing filler 24, the inlet end 20 is positioned between the lower baffle water distributor 25 and the partition 23, a water pipe 27 is arranged in the deoxidizing filler 19, the bottom end of the water pipe 27 is communicated with the treated water cavity 21, the top end of the water pipe 27 is positioned in the top space of the deoxidizing filler 19 at the top of the upper baffle 26, the top space of the deoxidizing filler 19 at the top of the upper baffle 26 is conical, the uppermost part of the top space is connected with a small-diameter steam-water conveying pipe 28, the diameter of the small-diameter steam-water conveying pipe 28 is far smaller than that of the water pipe 27, and the small-diameter steam-water conveying pipe 28 is connected with a steam-water separator 29. The water after the impurity removal of the activated carbon enters from the inlet end 20 of the analytic deaerator 19, and because of the limitation of the partition plate 23, the water flow can only be distributed upwards through the lower baffle plate water distributor 25, and the lower baffle plate water distributor 25 is provided with a uniform water distribution spray head 54 which can spray the water flow at a high speed to form water vapor, thereby enlarging the contact area with the sponge iron filler and carrying out more thorough chemical deaeration. The water flows from bottom to top and is discharged from the top space of the analytic deaerator 19 at the top of the upper baffle plate 26 after deep deaeration by the thick layer of sponge iron filler. The top space of the analytic deaerator 19 at the top of the upper baffle plate 26 is conical, gas in water is discharged from a conical gas port to a small-diameter steam-water conveying pipe 28, and no gas water flow flows in from the top of the water conveying pipe 27 and flows to the treated water cavity 21 through the water conveying pipe 27. Since the diameter of the small-diameter steam-water conveying pipe 28 is far smaller than that of the water conveying pipe 27, the water flow rate flowing out of the small-diameter steam-water conveying pipe 28 is far smaller than that of the water conveying pipe 27. The small diameter steam-water pipe 28 flows the steam-water mixture into the steam-water separator 29.
The water separating pipe 30 of the steam-water separator 29 is communicated with the top of the shell of the heat exchanger 11, and the water separated by the steam-water separator 29 flows into the shell of the heat exchanger 11 and is mixed into a heat exchange cold water domain for heat exchange.
The separation air pipe 31 of the steam-water separator 29 is communicated with the bottom of the reactor, the oxygen-free gas separated by the steam-water separator 29 is recycled to the reactor, the inside of the reactor is also provided with the deoxidizing filler 24, and the bottom of the deoxidizing filler 24 is supported by the lower baffle plate 32. The top of the reactor 59 is connected with the suction end of the ejector 2 through a negative pressure suction pipeline 60. Because the oxygen removal in the desorption deaerator 19 may not be thorough, a small amount of oxygen and water vapor may be mixed in the oxygen-free gas separated by the separating air pipe 31 of the steam-water separator 29, the oxygen-free gas (a small amount of oxygen and water vapor may be mixed) recovered to the reactor is deaerated by the deoxidizing filler 24 from the lower baffle plate 32, the oxygen-free filler 24 is sponge iron filler, so as to form completely oxygen-free gas and trace water vapor), and the recovered oxygen-free gas and trace water vapor are sucked into the suction end of the ejector 2 from the negative pressure suction pipeline under the action of the negative pressure formed by the ejector 2, so that the oxygen-free gas and the water to be deaerated are fully mixed with water vapor, and are used for the subsequent desorption deaeration process again.
The water inlet pipe is provided with a pressure relief pipeline 61, the pressure relief pipeline 61 is communicated with the original deaerated water tank 34, the pressure relief pipeline 61 is provided with a pressure relief electromagnetic valve 62, and the pressure relief electromagnetic valve 62 is controlled by a pipe inlet pressure sensor 41. If the water is just fed into the water inlet pipe 4, after the deoxidizing pipeline is blocked, particularly after the water quality impurity remover 16 or the analysis deoxidizing device 19 is blocked, the pressure at the water inlet pipe 4 is greatly increased, in order to avoid the deoxidizing water pump 1 from being damaged by pressure, a pressure relief pipeline 61 is arranged, when the situation is met, the water pressure sensor 41 detects the great increase of the water pressure, the pressure relief electromagnetic valve 62 is controlled to be opened for pressure relief, and the water in the water inlet pipe 4 flows back to the original deoxidizing water tank 34 from the pressure relief pipeline 61.
The treated water cavity 21 is internally provided with a water outlet dissolved oxygen detector 33, and the water outlet dissolved oxygen detector 33 detects whether the oxygen content in the water at the outlet end 22 is deoxidized and reaches the standard. The combined type analytic deoxidizing device further comprises an original deoxidizing water tank 34 and a deoxidizing water tank 35, the deoxidizing water pump 1 is connected with the original deoxidizing water tank 34 through a pipeline, the deoxidizing water tank 35 is connected with the outlet end 22 of the treated water cavity 21, the deoxidizing water tank 35 is connected with the original deoxidizing water tank 34 through a secondary through pipe 36, and a secondary deoxidizing electromagnetic valve 37 and a secondary deoxidizing pump 38 are arranged on the secondary through pipe 36; the water outlet dissolved oxygen detector 33 is in signal connection with a PLC system in the power electric cabinet 39, and the water outlet dissolved oxygen detector 33 controls the connection and the disconnection of the secondary deoxidization electromagnetic valve 37 through the PLC system;
when the outlet end 22 analyzes that the dissolved oxygen in the deoxidized water sample is detected to be qualified by the outlet water dissolved oxygen detector 33, the water sample in the deoxidized water tank 35 shows that the deoxidized water sample is qualified, and the secondary deoxidizing electromagnetic valve 37 is kept in a closed state, so that secondary deoxidizing is not needed; when the outlet end 22 is detected to analyze that the dissolved oxygen in the deoxidized water sample is unqualified by the outlet dissolved oxygen detector 33, the water sample in the deoxidized water tank 35 is unqualified, a secondary deoxidizing electromagnetic valve 37 between the deoxidized water tank 35 and the original water tank 34 to be deoxidized is opened, a secondary through pipe 36 is connected, and the unqualified water sample in the deoxidized water tank 35 is pumped to the original water tank 34 to be deoxidized through a secondary deoxidizing pump 38 for secondary circulation and secondary deoxidization.
A water inlet pressure sensor 41 is arranged at the water inlet pipe 4, a water outlet pressure sensor 42 is arranged at the outlet end 22 of the treated water cavity 21, and the water inlet pressure sensor 41 and the water outlet pressure sensor 42 are both in signal connection with a PLC system in the power electric cabinet 39;
when the pressure difference between the water inlet pressure sensor 41 and the water outlet pressure sensor 42 is in a normal range, an alarm on the PLC system does not alarm;
when the pressure difference between the water inlet pressure sensor 41 and the water outlet pressure sensor 42 exceeds the normal range, an alarm on the PLC system alarms, so that the pipeline needs to be backwashed, and if the pipeline is blocked after backwashed, the pipeline needs to be overhauled. The pressure difference in the normal range is 2 kg, if the pressure difference is more than 4 kg, the analysis pipeline is blocked, and an alarm is given. The realization of back flushing needs to arrange a valve combination in the analysis deoxidization pipeline, and the specific arrangement is as follows:
an electromagnetic valve A44 is arranged on the water inlet pipe 4, a three-way electromagnetic valve D45 is arranged on the water injection pipeline 6, a third pipe orifice of the three-way electromagnetic valve D45 is connected with a flushing water pump 46 through a pipeline, an electromagnetic valve B47 is arranged at the water inlet 8 of the heater 7, an electromagnetic valve C48 is arranged at the outlet end 22 of the treated water cavity 21, and an electromagnetic valve E49 is arranged at the bottom of the heater 7; the bottom side of the heat exchanger 11 is communicated with the bottom side of the reactor through a communicating pipe 50, an F electromagnetic valve 51 is arranged on the communicating pipe 50, an air pipe between the separation air pipe 31 and the bottom of the reactor is connected with a G electric air valve 52, and the A electromagnetic valve 44, the D three-way electromagnetic valve 45, the B electromagnetic valve 47, the C electromagnetic valve 48, the E electromagnetic valve 49, the F electromagnetic valve 51 and the G electric air valve 52 are all in signal connection with a PLC system in the power electric cabinet 39;
when the pressure difference between the water inlet pressure sensor 41 and the water outlet pressure sensor 42 is in a normal range, an alarm on the PLC system does not alarm; the PLC system controls the solenoid valve A44, the solenoid valve B47, the solenoid valve C48 and the electric air valve G52 to be opened, the third pipe orifice of the three-way solenoid valve D45, the solenoid valve E49 and the solenoid valve F51 to be closed, and the deoxygenation pipeline is analyzed to work normally;
when the pressure difference between the water inlet pressure sensor 41 and the water outlet pressure sensor 42 exceeds the normal range, after an alarm on the PLC system alarms, the pressure relief electromagnetic valve 62 is normally in a closed state, the PLC system controls the A electromagnetic valve 44, the B electromagnetic valve 47, the C electromagnetic valve 48 and the G electric air valve 52 to be closed, the third pipe orifice of the D three-way electromagnetic valve 45, the E electromagnetic valve 49 and the F electromagnetic valve 51 are opened, and the analysis deoxidization pipeline is backwashed through the flushing water pump 46. The top of the deoxidizing filler 24 in the reactor is provided with an upper baffle water distributor 53, the upper baffle water distributor 53 is provided with a uniform water distribution spray head 54, and the uniform water distribution spray head 54 can change water into water mist during back flushing, so that the filler is thoroughly cleaned.
The outlet end 22 of the treated water cavity 21 is provided with a flow sensor 40, the flow sensor 40 is connected with a PLC system in the power electric cabinet 39, and the flow sensor 40 controls the heating state of the heater 7 through the PLC system. The flow sensor 40 is used for detecting the flow of water and whether the water flows, and if the water flows, the flow sensor indicates that the analysis deoxidizing operation is in progress, and the heater 7 is kept in a heating state; if no water flow is detected, the heater 7 releases the heating state, and the heater 7 is protected from dry combustion.
The outlet end 22 of the treated water cavity 21 is provided with a temperature sensor 43, the temperature sensor 43 is in signal connection with a PLC system in the power electric cabinet 39, and the temperature sensor 43 controls heat exchange and cooling of the heat exchanger 11 through the PLC system. The temperature sensor 43 is disposed at the outlet end 22 of the processed water cavity 21, and is used for detecting the water temperature at the outlet end 22, and if the water temperature at the outlet end 22 is too high, the information is fed back to the PLC system in the power electric cabinet 39, and the PLC system in the power electric cabinet 39 controls the heat exchanger 11 to perform deep cooling.
The heater 7 controls the heating temperature through a temperature control cabinet 55; the water impurity remover 16 and the analytic deaerator 19 are respectively provided with a filler opening 56 and a discharge opening 57, and the filler opening 56 and the discharge opening 57 are respectively used for filling filler and cleaning filler. The bottom of the treated water cavity 21 is also provided with a sampling valve 58 which is used for sampling the deoxygenated water quality.
To sum up:
this analytic deoxidization equipment can realize two-stage degree of depth deoxidization, namely: preliminary deoxidization and chemical deep deoxidization of the solubility are reduced, namely: through the oxygen-free gas and trace steam of the ejector 2, the oxygen-free gas, trace steam and the water to be deoxygenated fully realize 'water-gas intensive mixing', play certain purpose of reducing preliminary deoxygenation of solubility, and the electric heating rod 9 in the heater 7 has high surface temperature, and the dissolved oxygen originally saturated in water is separated out and adhered to the heating rod 9, and then is added into steam to be discharged through the air release valve 13 arranged right above the heater 7, thereby playing the role of reducing preliminary deoxygenation of solubility in depth. In the analytic deaerator 19, the water distribution spray head on the lower baffle plate water distributor 25 can spray water flow at high speed to form water vapor, so that the contact area with the sponge iron filler is enlarged, and more thorough chemical deaeration is performed.
And more impurities in the softened water can be synchronously adsorbed and removed through the activated carbon filler in the water quality impurity remover 16 in the process of desorption and deoxidation.
The oxygen removal effect can be intelligently measured through the water-out dissolved oxygen detector 33, and the reworking secondary oxygen removal can be intelligently controlled when the oxygen removal effect is poor, so that the influence of human factors is eliminated, and the labor cost is saved.
The oxygen-free gas is fully recycled in the Huizhou reactor, so that the analysis deoxidization cost is reduced. The device is provided with a water outlet dissolved oxygen detector 33, a flow sensor 40, a water inlet pressure sensor 41, a water outlet pressure sensor 42 and a temperature sensor 43, so that the dissolved oxygen detection, the flow monitoring, the pipe orifice pressure detection, the temperature detection and the like can be automatically carried out.
The blockage of the analysis deoxidization pipeline is automatically monitored and analyzed through the water inlet pressure sensor 41 and the water outlet pressure sensor 42, an electromagnetic valve group is arranged in the analysis deoxidization pipeline, and each electromagnetic valve of the electromagnetic valve group is controlled to be opened and closed for backwash control, so that automatic supervision, intelligent operation, advanced equipment and greatly reduced labor cost are realized.
Claims (9)
1. The integrated intelligent combined type analytic deoxidizing device comprises a deoxidizing water pump (1) and an ejector (2), wherein the deoxidizing water pump (1) is connected with a water inlet port (3) of the ejector (2) through a water inlet pipe (4);
the method is characterized in that: the water outlet (5) of the jet device (2) is connected with the water inlet (8) of the heater (7) through a water injection pipeline (6), a heating rod (9) is arranged in the heater (7), a water outlet (10) at the upper side part of the heater (7) is connected with the water inlet (12) of the heat exchanger (11) through a pipeline, a gas release valve (13) is arranged in a space right above the heater (7), a heat exchange pipe section (14) is arranged in a shell of the heat exchanger (11), two sides of the heat exchange pipe section (14) are respectively connected with the water inlet (12) and the water outlet (15) of the heat exchanger (11), the water outlet (15) is connected with the water inlet (17) of the water quality impurity remover (16) through a pipeline, the water outlet (18) of the water quality impurity remover (16) is connected with the inlet (20) of the analysis deaerator (19), the bottom of the water remover (19) is provided with a water cavity (21) after treatment, one side of the water cavity (21) is provided with an outlet (22) after treatment, the deaerator (21) and the water cavity (21) and the analysis chamber (19) is separated by a filler (24) through a filler (24) in the water separator (24), the top of the deoxidizing filler (24) is provided with an upper baffle plate (26), the inlet end (20) is positioned between the lower baffle plate water distributor (25) and the partition plate (23), a water pipe (27) is arranged inside the analytic deoxidizing device (19), the bottom end of the water pipe (27) is communicated with the treated water cavity (21), the top end of the water pipe (27) is positioned in the top space of the analytic deoxidizing device (19) at the top of the upper baffle plate (26), the top space of the analytic deoxidizing device (19) at the top of the upper baffle plate (26) is conical, the uppermost part of the top space is connected with a small-diameter vapor-water conveying pipe (28), the diameter of the small-diameter vapor-water conveying pipe (28) is far smaller than that of the water pipe (27), the small-diameter vapor-water conveying pipe (28) is connected with a vapor-water separator (29), a separation water pipe (30) of the vapor-water separator (29) is communicated with the top of a shell of the heat exchanger (11), and a separation air pipe (31) of the vapor-water separator (29) is communicated with the bottom of the reactor (59);
the reactor is internally provided with deoxidizing filler (24) as well, the bottom of the deoxidizing filler (24) is supported by a lower baffle plate (32), and the top of the reactor (59) is connected with the suction end of the ejector by a negative pressure suction pipeline (60).
2. The integrated intelligent composite analytical oxygen removal device of claim 1, wherein: the deoxidizing filler (24) is sponge iron filler.
3. The integrated intelligent composite analytical oxygen removal device of claim 2, wherein: the combined type analytic deoxidizing device comprises a water tank (34) to be deoxidized and a deoxidized water tank (35), wherein the deoxidized water pump (1) is connected with the water tank (34) to be deoxidized through a pipeline, an outlet end (22) of the water tank (21) to be deoxidized is connected with the water tank (35) to be deoxidized, the deoxidized water tank (35) is connected with the water tank (34) to be deoxidized through a secondary through pipe (36), and a secondary deoxidizing electromagnetic valve (37) and a secondary deoxidizing pump (38) are arranged on the secondary through pipe (36);
the water-yielding dissolved oxygen detector (33) is in signal connection with a PLC system in the power electric cabinet (39), and the water-yielding dissolved oxygen detector (33) controls the connection and the disconnection of the secondary deoxidization electromagnetic valve (37) through the PLC system;
when the outlet water dissolved oxygen detector (33) detects that the outlet end (22) analyzes and deoxidizes the dissolved oxygen in the water sample to be detected to be qualified, the water sample in the deoxidized water tank (35) shows that the water sample is qualified, and the secondary deoxidizing electromagnetic valve (37) is kept in a closed state and does not need secondary deoxidization; when the outlet end (22) is detected to analyze that the dissolved oxygen in the deoxidized water sample is unqualified by the outlet water dissolved oxygen detector (33), the water sample in the deoxidized water tank (35) is unqualified, a secondary deoxidizing electromagnetic valve (37) between the deoxidized water tank (35) and the original water tank (34) to be deoxidized is opened, a secondary through pipe (36) is connected, and the unqualified water sample in the deoxidized water tank (35) is pumped to the original water tank (34) to be deoxidized through a secondary deoxidizing pump (38) for secondary circulation and secondary deoxidization.
4. The integrated intelligent composite analytical oxygen-scavenging device of claim 3, wherein: the outlet end (22) of the processed water cavity (21) is provided with a flow sensor (40), the flow sensor (40) is connected with a PLC system in a power electric cabinet (39), and the flow sensor (40) controls the heating state of the heater (7) through the PLC system.
5. The integrated intelligent composite analytical oxygen-scavenging device of claim 4, wherein: a water inlet pressure sensor (41) is arranged at the water inlet pipe (4), a water outlet pressure sensor (42) is arranged at the outlet end (22) of the treated water cavity (21), and the water inlet pressure sensor (41) and the water outlet pressure sensor (42) are both in signal connection with a PLC system in the power electric cabinet (39);
when the pressure difference between the water inlet pressure sensor (41) and the water outlet pressure sensor (42) is in a normal range, an alarm on the PLC system does not alarm;
when the pressure difference between the water inlet pressure sensor (41) and the water outlet pressure sensor (42) exceeds the normal range, an alarm on the PLC system gives an alarm.
6. The integrated intelligent composite analytical oxygen-scavenging device of claim 5, wherein: the outlet end (22) of the processed water cavity (21) is provided with a temperature sensor (43), the temperature sensor (43) is in signal connection with a PLC (programmable logic controller) system in the power electric cabinet (39), and the temperature sensor (43) controls heat exchange and cooling of the heat exchanger (11) through the PLC system.
7. The integrated intelligent composite analytical oxygen-scavenging device of claim 6, wherein: an electromagnetic valve A (44) is arranged on the water inlet pipe (4), a three-way electromagnetic valve D (45) is arranged on the water injection pipeline (6), a third pipe orifice of the three-way electromagnetic valve D (45) is connected with a flushing water pump (46) through a pipeline, an electromagnetic valve B (47) is arranged at a water inlet (8) of the heater (7), an electromagnetic valve C (48) is arranged at an outlet end (22) of the water cavity (21) after treatment, and an electromagnetic valve E (49) is arranged at the bottom of the heater (7); the bottom side of the heat exchanger (11) is communicated with the bottom side of the reactor through a communicating pipe (50), an F electromagnetic valve (51) is arranged on the communicating pipe (50), a G electric air valve (52) is connected with an air pipe between the separation air pipe (31) and the bottom of the reactor,
the electromagnetic valve A (44), the three-way electromagnetic valve D (45), the electromagnetic valve B (47), the electromagnetic valve C (48), the electromagnetic valve E (49), the electromagnetic valve F (51) and the electric air valve G (52) are all in signal connection with a PLC system in the power electric cabinet (39);
when the pressure difference between the water inlet pressure sensor (41) and the water outlet pressure sensor (42) is in a normal range, an alarm on the PLC system does not alarm; the PLC system controls the opening of the electromagnetic valve A (44), the electromagnetic valve B (47), the electromagnetic valve C (48) and the electric air valve G (52), the closing of the third pipe orifice of the three-way electromagnetic valve D (45), the closing of the electromagnetic valve E (49) and the electromagnetic valve F (51) and the normal operation of the deoxidizing pipeline is analyzed;
when the pressure difference between the water inlet pressure sensor (41) and the water outlet pressure sensor (42) exceeds the normal range, after an alarm on the PLC system gives an alarm, the PLC system controls the A electromagnetic valve (44), the B electromagnetic valve (47), the C electromagnetic valve (48) and the G electric air valve (52) to be closed, the third pipe orifice of the D three-way electromagnetic valve (45), the E electromagnetic valve (49) and the F electromagnetic valve (51) to be opened, and the analysis deoxidization pipeline is backwashed through the flushing water pump (46).
8. The integrated intelligent composite analytical oxygen-scavenging device of claim 7, wherein: the top of the deoxygenated filler (24) in the reactor is provided with an upper baffle water distributor (53), and the lower baffle water distributor (25) and the upper baffle water distributor (53) are respectively provided with a uniform water distribution spray head (54).
9. The integrated intelligent composite analytical oxygen removal device of claim 1, wherein: the heater (7) controls the heating temperature through a temperature control cabinet (55); the water quality impurity remover (16) and the analytic deaerator (19) are respectively provided with a filling port (56) and a discharging port (57), and the bottom of the water cavity after treatment is also provided with a sampling valve (58).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2074297U (en) * | 1990-02-16 | 1991-04-03 | 辽阳北方真空设备厂 | Jet-type vacuum deoxygenation complete equipment |
| RU21947U1 (en) * | 2001-07-31 | 2002-02-27 | Закрытое акционерное общество "Научно-производственное предприятие "Машпром" | WATER TREATMENT PLANT |
| CN201762133U (en) * | 2010-07-08 | 2011-03-16 | 西安民力水处理有限公司 | Full-automatic chemical deaerator |
| CN104085940B (en) * | 2014-06-13 | 2015-09-30 | 江苏巴威工程技术股份有限公司 | Secondary deaerating plant is reclaimed in the mixing of condensed water demineralized water |
| CN204981150U (en) * | 2015-07-17 | 2016-01-20 | 杭州秀川科技有限公司 | Deaerator |
| CN207179623U (en) * | 2017-06-19 | 2018-04-03 | 甘肃大唐八〇三热力发电有限公司 | A kind of boiler start-up system |
| CN209431392U (en) * | 2018-10-29 | 2019-09-24 | 天津富斯特压力容器有限公司 | Thermal deaerator waste steam recycling system |
| CN214332667U (en) * | 2020-12-14 | 2021-10-01 | 贵州源隆新型环保墙体建材有限公司 | Boiler deaerator |
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