CN219199143U - Superheated steam treatment system and MVR evaporation system - Google Patents
Superheated steam treatment system and MVR evaporation system Download PDFInfo
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- CN219199143U CN219199143U CN202223135018.1U CN202223135018U CN219199143U CN 219199143 U CN219199143 U CN 219199143U CN 202223135018 U CN202223135018 U CN 202223135018U CN 219199143 U CN219199143 U CN 219199143U
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Abstract
The utility model provides a superheated steam treatment system and an MVR evaporation system, comprising: a main pipeline provided with an electric regulating valve and a manual valve which are arranged in parallel with each other; the spraying equipment is connected with the main pipeline and used for spraying into a steam pipeline of the MVR evaporation system; a temperature sensor for monitoring the temperature in the steam conduit; and a controller electrically connected to the temperature sensor and the electric control valve, and configured to adjust an opening degree of the electric control valve based on the temperature sensed by the temperature sensor. The system can reduce labor cost and lighten the operation burden of field operators. Real-time and accurate monitoring and adjustment are realized. The on-line maintenance of the electric regulating valve is convenient, and the running stability of the system is ensured.
Description
Technical Field
The utility model relates to the technical field of superheated steam treatment, in particular to a superheated steam treatment system and an MVR evaporation system.
Background
Mechanical Vapor Recompression (MVR) evaporation technology is an efficient energy-saving environment-friendly technology, and the technology recycles secondary vapor formed after heat exchange of saturated vapor, and the secondary vapor is heated and boosted by a compressor to reform the saturated vapor as an evaporation heat source for recycling. The superheated steam is formed after the temperature and the pressure of the secondary steam are raised through the compressor, and the superheated steam is directly communicated with the evaporator to exchange heat with a product, so that the problems of low heat exchange efficiency, equipment damage caused by thermal stress in the process of reducing the temperature of the superheated steam, improvement of the temperature of condensed water and the like are solved, the full utilization of steam energy is not facilitated, and the recovery and the transportation of the steam condensed water are also not facilitated.
At present, in a system for spraying superheated steam, manual valve control needing manual operation is mostly adopted. And the on-site operator manually controls the opening of the manual valve according to the temperature of the sprayed steam, so that the temperature of the superheated steam after spraying is reduced to saturated steam.
In the prior art, the problems of high labor cost and high operation burden of field operators exist.
Disclosure of Invention
The utility model provides a superheated steam treatment system and an MVR evaporation system, which are used for solving the defects of high labor cost and high operation burden of on-site operators in the prior art, realizing real-time accurate control of the superheated steam temperature and reducing the labor cost and the burden.
In a first aspect, the present utility model provides a superheated steam treatment system comprising: a main pipeline provided with an electric regulating valve and a manual valve which are arranged in parallel with each other; the spraying equipment is connected with the main pipeline and used for spraying into a steam pipeline of the MVR evaporation system; a temperature sensor for monitoring the temperature in the steam conduit; and a controller electrically connected to the temperature sensor and the electric control valve, and configured to adjust an opening degree of the electric control valve based on the temperature sensed by the temperature sensor.
The superheated steam processing system provided by the utility model further comprises: the flowmeter is arranged on the main pipeline and is positioned between the manual valve and the spraying equipment, wherein the flowmeter is electrically connected with the controller and is used for feeding back the spraying water flow in the main pipeline to the controller. Realizing the real-time detection of the flow of the spray water.
The superheated steam processing system provided by the utility model further comprises: the spray water pump is arranged on the main pipeline and is positioned at the upstream of the manual valve and the electric regulating valve.
According to the superheated steam treatment system provided by the utility model, the spraying equipment comprises at least one spraying pipeline and a nozzle arranged on each spraying pipeline, wherein the spraying pipeline is connected with the main pipeline, and the nozzle is used for spraying into the steam pipeline. The superheated steam temperature is reduced.
According to the superheated steam treatment system provided by the utility model, the spraying device further comprises a plurality of spraying pipelines connected in parallel with each other.
According to the superheated steam processing system provided by the utility model, the temperature sensor is arranged on the side wall of the steam pipeline.
According to the superheated steam treatment system provided by the utility model, the spraying equipment is connected to the side wall of the steam pipeline and used for spraying into the steam pipeline.
According to the superheated steam treatment system provided by the utility model, the manual valve is configured as a manual adjustment ball valve.
According to the superheated steam treatment system provided by the utility model, the controller is configured as a PLC controller.
In a second aspect, the present utility model also provides an MVR evaporation system comprising: a superheated steam treatment system as hereinbefore described.
According to the superheated steam treatment system provided by the utility model, the electric regulating valve is arranged on the main pipeline, so that the regulating effect is more accurate and controllable. The temperature sensor can monitor the temperature in the steam pipeline in real time. The electric regulating valve can be automatically regulated by the controller, automation of regulation is realized, the setting of the controller provides guarantee for the realization of various regulating schemes of the system, the temperature information is acquired in real time by the controller and is regulated, the regulating effect is more accurate and timely, the labor cost is saved, and the burden of personnel is lightened. Through setting up electric control valve and manual valve in parallel on the main pipeline, when overhauling or changing electric control valve, can adopt the branch road transmission shower water of manual valve and adjust, do not influence the normal operating of whole processing system.
Further, the MVR evaporation system provided by the present utility model has the advantages as described above because it is provided with the superheated steam treatment system as described above.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a superheated steam treatment system provided by the present utility model;
reference numerals:
10: a main pipeline; 12: an electric control valve; 14: a manual valve; 16: a spraying device; 18: a steam pipe; 20: a temperature sensor; 22: a controller; 24: a flow meter; 26: and (5) a spray water pump.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Embodiments of the present utility model are described in further detail below in conjunction with fig. 1. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
As shown in fig. 1, the present utility model provides a superheated steam processing system comprising: main line 10, electrically operated regulator valve 12, manual valve 14, spray equipment 16, steam line 18, temperature sensor 20, controller 22, flow meter 24, spray water pump 26. The main pipeline 10 is provided with a spray water pump 26, an electric regulating valve 12 and a manual regulating valve 14 which are arranged in parallel, a flowmeter 24 and a spray device 16. The steam pipe 18 is provided with a temperature sensor 20. The controller 22 is electrically connected to the flow meter 24, the temperature sensor 20, and the electrically operated regulator valve 12, respectively. In actual operation, spray water is fed into the main pipeline 10 by the spray water pump 26 and flows through the electric control valve 12, the flowmeter 24 and the spray equipment 16 in sequence, wherein the controller 22 can adjust the opening of the electric control valve 12 according to the steam temperature provided by the temperature sensor 20, the flowmeter 24 can monitor the actual flow of the spray water in the main pipeline 10 and transmit flow information to the controller 22, and the spray water is sprayed into the steam pipeline 18 by the spray equipment 16.
Specifically, in actual operation, the shower water pump 26 sends shower water into the main pipeline 10, the electric control valve 12 on the main pipeline 10 adjusts the flow rate of the shower water, the shower water after the flow rate adjustment enters the shower device 16 for cooling superheated steam, and the temperature sensor 20 is installed on the steam pipeline 18 to monitor the steam temperature. Wherein, the electric control valve 12 is controlled by the controller 22, and the controller 22 controls the opening of the electric control valve 12 according to the temperature of the superheated steam to control the flow rate of the spraying water, so that the temperature of the superheated steam meets the requirement. The electric control valve 12 can be controlled more accurately, and the controller 22 controls the electric control valve 12, so that not only is the labor cost saved and the personnel burden reduced, but also the use of the controller provides a foundation for realizing various control schemes. The controller can adjust based on the real-time temperature monitored by the temperature sensor 20, so that the adjustment is more timely and accurate.
In the embodiment described above, the manual valve 14 is also connected in parallel for manual adjustment on the basis of the electric adjustment using the electric adjustment valve 12. The electric control valve 12 is normally open, and the manual valve 14 is normally closed. Typically, the shower water flows only through the branch in which the electrically operated valve 12 is located. When an abnormality occurs in the branch where the electric control valve 12 is located or the branch where the electric control valve 12 is located is overhauled, the manual valve 14 is opened, and the shower water is not flowing through the branch where the electric control valve 12 is located any more but is conveyed through the branch where the manual valve 14 is located. When the electric regulating valve is overhauled and replaced, the parallel manual valve 14 can be used for manual regulation, the normal operation of the whole system is not influenced, and the running stability of the system is ensured. In an alternative embodiment, the manual valve 14 may be configured as a manually adjustable ball valve; it will of course be appreciated that in alternative embodiments, the manual valve 14 may take other suitable forms, and the utility model is not limited thereto.
In an alternative embodiment of the present utility model, a temperature sensor 20 may be provided, for example, on a side wall of the steam pipe 18 for detecting the temperature of steam in the steam pipe 18 in real time. The temperature sensor 20 is electrically connected to the controller 22, and transmits the detected steam temperature in the steam pipe 18 to the controller 22 in real time. Further, in actual use, a temperature sensor 20 may be provided downstream of the sparged steam pipe 18 to monitor the actual steam temperature after the sparged process in real time.
In alternative embodiments, the temperature sensor 20 may be any suitable type of temperature sensing device, and the present utility model is not limited in any way to the specific type of temperature sensor 20. In actual use, the temperature sensor 20 may be set according to actual needs. For example, in the embodiment shown in FIG. 1, the temperature sensor 20 may be disposed downstream of the post-shower vapor conduit 18, but it should be understood that FIG. 1 is merely an alternate embodiment of the present utility model. In other embodiments, for example, the temperature sensor 20 may be disposed on the shower pipe to monitor the shower water temperature in real time, and the temperature sensor 20 may be disposed upstream and downstream of the steam pipe 18 to monitor the actual temperature before and after the treatment in real time, calculate the required cooling capacity and the required shower water amount according to the shower water temperature and the upstream and downstream temperature difference, and perform further adjustment control.
Further, a flow meter 24 is arranged on the main pipeline 10, and the flow connector can be arranged between the manual valve 14 and the spraying equipment 16 or between the spraying water pump 26 and the manual valve 14. The flowmeter 24 is electrically connected with the controller 22, and can feed back the shower water flow in the main pipeline 10 to the controller 22 in real time. In alternative embodiments, the flow meter 24 may be provided on other lines, such as on the shower lines of the shower apparatus 16, to effect water volume monitoring of each shower line.
In addition, the controller 22 is electrically connected to the temperature sensor 20, the flow meter 24, and the electrically operated control valve 12, wherein the controller 22 is configured as a PLC controller. The PLC controller runs fast with high reliability, thereby ensuring the fast and accurate temperature control and the stability of system running.
The temperature sensor 20 inputs the steam temperature in the downstream of the steam pipe 18 to the PLC controller in real time, and the flow meter 24 inputs the flow rate of shower water to the PLC controller in real time. In actual operation, the PLC is internally provided with a saturated steam temperature target value t ℃, and the temperature value is set in advance manually. The PLC performs PID (proportion, integration and differentiation) operation according to the processed steam temperature value, the spraying water flow and a target value t ℃ set in advance, performs PID control on the electric regulating valve 12, controls the spraying water flow by adjusting the opening degree of the valve, realizes temperature control on superheated steam in the steam pipeline 18, and controls the steam temperature to be near the saturated steam temperature t ℃.
Specifically, in actual application, the accumulated time a seconds and the steam temperature change range of ±0.5%t ℃ are manually set, when the steam temperature change range is smaller than ±0.5%t ℃, the timing is started, when the accumulated time reaches a seconds, the PID control of the electric valve is canceled, the average flow f of the flowmeter 24 in a seconds is calculated, and the opening degree of the electric control valve 12 is set at the average flow f. When the system has larger fluctuation, namely the temperature change range is more than or equal to +/-0.5%t ℃, the PID control is carried out on the electric valve again at the target value t ℃, so that the stable cooling control of the superheated steam is realized. PID is sensitive to fluctuation, the opening of the electric control valve 12 can be continuously changed, the electric control valve 12 is easy to damage, PID control is not performed under the conditions that the temperature is in a set range and temperature shock does not occur, temperature and flow control can be realized, and the service life of the electric control valve 12 can be prolonged. In addition, the electric control valve is also connected with the manual control in parallel when the electric control valve 12 needs to be overhauled or replaced, the manual control can be directly used, the normal operation of the system is not affected, and the operation stability of the system is ensured. Through the dual control of flow and temperature, the stability of the control of the spraying system is ensured. The automatic adjustment of the spraying system is realized, the automation degree is improved for the operation of the field system, and the burden of personnel is reduced.
According to the present utility model there is provided a superheated steam treatment system further comprising: a spray water pump 26, the spray water pump 26 being disposed on the main line 10 upstream of the manual valve 14 and the electric regulator valve 12. The spray water pump 26 is used for providing spray power and meeting the requirements of the delivery of spray water and the pressure of spray. Optionally, a spray water pump 26 is mounted between the manual valve 14 and the spray device 16. The spray water used for cooling can be derived from tap water, condensed water treated in an MVR system, and circulating water after cooling treatment. The source of the shower water is not particularly limited in the present utility model.
With continued reference to fig. 1, the shower water in the main line 10 is routed through the branch where the electrically operated control valve 12 is located to the shower apparatus 16, and the shower apparatus 16 is connected to the side wall of the steam line 18 for shower into the steam line 18. The spraying device 16 sprays the superheated steam in the steam pipe 18, reduces the temperature of the superheated steam, and reduces the temperature of the superheated steam to saturated steam.
In an alternative embodiment, the shower device 16 comprises at least one shower line and a nozzle arranged on each shower line, wherein the shower lines are connected to the main line 10 and the nozzles are used for shower into the steam line 18. The spray nozzles spray the spray water in the spray line into the steam line 18, alternatively the spray nozzles may be atomizing nozzles to spray mist into the steam line 18 for cooling.
Further alternatively, as shown in FIG. 1, the spray device 16 may further include a plurality of spray lines connected in parallel with each other. The spray line delivers spray water to the nozzles through which the spray water is sprayed into the steam line 18 for direct heat exchange with the superheated steam. In an alternative embodiment, a valve may be further disposed on each spray line, and the valve may be a manually adjustable valve, and the opening of each line may be manually controlled to control the flow rate. In another embodiment, the valve may be an automatic control valve, and is electrically connected to the controller 22, and is precisely controlled by the controller 22 based on temperature and flow.
In another aspect, the present utility model also provides an MVR evaporation system, comprising: a superheated steam treatment system as hereinbefore described. In the MVR evaporation system provided by the embodiment of the utility model, the superheated steam treatment system is provided, so that the MVR evaporation system has all the beneficial effects as described above.
In summary, in the superheated steam processing system and the MVR evaporation system provided by the embodiments of the present utility model, the controller 22 is provided to automatically control the opening of the electric control valve 12 according to the temperature, so that the automatic adjustment of the spraying system can be realized, the automation degree is improved for the operation of the on-site system, and the burden of personnel is reduced; further, since the manual valve 14 is provided in parallel with the electric control valve 12, when the electric control valve 12 is overhauled or replaced, the manual valve 14 can be used for control of the system. The manual bypass is arranged, so that an on-line overhaul standby scheme is provided for electric adjustment, and the running stability of the system is ensured; further, since the controller adjusts the opening of the electric control valve 12 based on the temperature information of the temperature sensor 20 and the flow information of the flow meter 24, such dual control of the flow and the temperature ensures the stability of the control of the shower system.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A superheated steam processing system, comprising:
a main pipeline provided with an electric regulating valve and a manual valve which are arranged in parallel with each other;
the spraying equipment is connected with the main pipeline and used for spraying into a steam pipeline of the MVR evaporation system;
a temperature sensor for monitoring the temperature in the steam conduit;
and a controller electrically connected to the temperature sensor and the electric control valve, and configured to adjust an opening degree of the electric control valve based on the temperature sensed by the temperature sensor.
2. The superheated steam processing system of claim 1, further comprising:
a flowmeter arranged on the main pipeline and positioned between the manual valve and the spraying equipment,
the flowmeter is electrically connected with the controller and used for feeding back the flow rate of the spraying water in the main pipeline to the controller.
3. The superheated steam processing system according to claim 1 or 2, further comprising:
the spray water pump is arranged on the main pipeline and is positioned at the upstream of the manual valve and the electric regulating valve.
4. The superheated steam treatment system according to claim 1 or 2, wherein the spraying device comprises at least one spraying line and a nozzle provided on each of the spraying lines,
wherein the spray line is connected with the main pipe and the nozzle is used for spraying into the steam pipe.
5. The superheated steam processing system of claim 4, wherein the spray device further comprises a plurality of the spray lines connected in parallel with one another.
6. The superheated steam treatment system according to claim 1 or 2, characterized in that the temperature sensor is provided on a side wall of the steam pipe.
7. The superheated steam treatment system according to claim 1 or 2, characterized in that the spraying device is connected to a side wall of the steam pipe for spraying into the steam pipe.
8. The superheated steam treatment system of claim 1 or 2, wherein the manual valve is configured as a manually adjustable ball valve.
9. The superheated steam treatment system according to claim 1 or 2, wherein the controller is configured as a PLC controller.
10. An MVR evaporation system comprising the superheated steam treatment system according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223135018.1U CN219199143U (en) | 2022-11-24 | 2022-11-24 | Superheated steam treatment system and MVR evaporation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223135018.1U CN219199143U (en) | 2022-11-24 | 2022-11-24 | Superheated steam treatment system and MVR evaporation system |
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| Publication Number | Publication Date |
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| CN219199143U true CN219199143U (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223135018.1U Active CN219199143U (en) | 2022-11-24 | 2022-11-24 | Superheated steam treatment system and MVR evaporation system |
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| CN (1) | CN219199143U (en) |
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- 2022-11-24 CN CN202223135018.1U patent/CN219199143U/en active Active
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