Superheated steam temperature reducing device
By designing a superheated steam temperature reduction device using a steam condensate pump and a finned pipeline radiator, the problems of increased operating costs and energy loss caused by the use of external cooled brine in the prior art are solved, and the recycling and reuse of steam condensate and reasonable temperature reduction of superheated steam are achieved.
Patent Information
- Application Number
- CN202420895929.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-28
AI Technical Summary
In the prior art, when using external cooled desalinate water to reduce superheated steam, there are problems of increased operating costs and energy loss.
A superheated steam temperature reduction device is designed, and the steam condensate in the chemical equipment is transported to the finned pipeline radiator by using a steam condensate pump for cooling. The cooled steam condensate comes into contact with the superheated steam to be processed in the steam temperature reducer to realize the temperature reduction treatment, and the conveying amount of steam condensate is adjusted through the condensate flow control mechanism.
This device can reduce the cost of superheated steam reduction treatment, realize the recycling and reuse of steam condensate, avoid the investment of external water resources, reduce the amount of heat-trapping steam in the cold desalinated water pipeline, and make the energy utilization more reasonable.
Smart Images
Figure CN222634556U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of steam supply, and in particular to a superheated steam cooling device. Background Art
[0002] At present, superheated steam is increasingly becoming the main steam source among steam users in various industries. The heat transfer coefficient of superheated steam is low, which leads to reduced production efficiency of heat exchange equipment. In addition, when using superheated steam, the life of the equipment is shortened, the maintenance rate is increased, and the operating costs are increased. Therefore, the superheated steam needs to be cooled down and converted into saturated steam before it can be supplied to the heat exchange equipment.
[0003] In the related art, chemical plants use external cold desalted water to be atomized through an atomizing device inside a desuperheater, and then directly mix with superheated steam and quickly evaporate into steam after increasing the surface area ratio of water, thereby lowering the temperature of superheated steam to achieve the purpose of cooling. The amount of cold desalted water added is controlled by measuring the steam temperature downstream of the desuperheater.
[0004] However, this superheated steam cooling method has the following problems: using cold desalted water outside the chemical plant requires adding cold desalted water pipelines and pipeline heating, and using external cold desalted water also leads to increased operating costs; using cold desalted water and steam directly to mix and cool down the medium has a large temperature difference, the temperature drops too much, and causes energy loss. Utility Model Content
[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a superheated steam cooling device, which reduces the cost of cooling the superheated steam and realizes the recycling of steam condensate, so as to cool the superheated steam more reasonably.
[0006] The present application provides a superheated steam desuperheating device, comprising: a superheated steam input pipeline, a superheated steam output pipeline, a condensate delivery pipeline, a finned pipeline radiator, a steam condensate pump, a condensate flow control mechanism, a steam desuperheater and chemical equipment;
[0007] The steam desuperheater is respectively connected to the output end of the superheated steam input pipeline, the input end of the superheated steam output pipeline, and the output end of the condensate delivery pipeline; the steam condensate pump and the finned pipe radiator are both arranged on the condensate delivery pipeline, and the finned pipe radiator is arranged between the steam condensate pump and the steam desuperheater; the two ends of the condensate flow control mechanism are respectively connected to the condensate delivery pipeline and the superheated steam output pipeline, and the end of the condensate flow control mechanism connected to the condensate delivery pipeline is located between the finned pipe radiator and the steam desuperheater; the chemical equipment is respectively connected to the output end of the superheated steam output pipeline and the steam condensate pump;
[0008] The steam condensate pump is used to transport the steam condensate in the chemical equipment to the condensate transport pipeline, the fin pipe radiator is used to cool the steam condensate in the condensate transport pipeline, and transport the cooled steam condensate to the steam desuperheater, the superheated steam input pipeline is used to transport the superheated steam to be processed to the steam desuperheater, the steam desuperheater is used to cool the superheated steam to be processed according to the steam condensate to obtain target superheated steam, the superheated steam output pipeline is used to output the target superheated steam to the chemical equipment, and the condensate flow control mechanism is used to control the delivery amount of the steam condensate to the steam desuperheater according to the temperature of the target superheated steam in the superheated steam output pipeline.
[0009] The superheated steam cooling device according to the embodiment of the present application has at least the following beneficial effects: the steam condensate pump is used to transport the steam condensate in the chemical equipment to the condensate transport pipeline, the finned pipe radiator is used to cool the steam condensate in the condensate transport pipeline, and transport the cooled steam condensate to the steam cooler, the superheated steam input pipeline is used to transport the superheated steam to be processed to the steam cooler, the steam cooler is used to cool the superheated steam to be processed according to the steam condensate to obtain the target superheated steam, the superheated steam output pipeline is used to output the target superheated steam to the chemical equipment, and the condensate flow control mechanism is used to control the delivery amount of the steam condensate to the steam cooler according to the temperature of the target superheated steam in the superheated steam output pipeline; the steam condensate in the chemical equipment can be recycled and reused, reducing the use of cold desalted water, thereby reducing the operating cost of the device; the steam condensate temperature does not need to be excessively cooled, and the condensate temperature is effectively used to atomize the superheated steam, without the need for external water resources to be invested, thereby reducing the use of hot steam in the cold desalted water pipeline. Through this arrangement, the present application reduces the cost of cooling the superheated steam, while realizing the recovery and reuse of steam condensate, and can cool the superheated steam more reasonably.
[0010] According to some embodiments of the present application, the condensate flow control mechanism includes a control valve and a temperature detector, the two ends of the temperature detector are respectively connected to the superheated steam output pipeline and the control valve, the control valve is arranged on the condensate delivery pipeline, the temperature detector is used to perform temperature detection on the target superheated steam in the superheated steam output pipeline to obtain a temperature detection value, and transmit the temperature detection value to the control valve, and the control valve is used to adjust the delivery amount of the steam condensate to the steam desuperheater according to the temperature detection value.
[0011] According to some embodiments of the present application, a controller and an actuator are provided on the control valve, and the controller is connected to the actuator and the temperature detector, respectively. The controller is used to control the actuator to adjust the delivery amount of the steam condensate to the steam desuperheater according to the temperature detection value sent by the temperature detector.
[0012] According to some embodiments of the present application, the superheated steam cooling device further includes a superheated steam generator, and the superheated steam generator is connected to the input end of the superheated steam input pipeline.
[0013] According to some embodiments of the present application, the superheated steam cooling device further includes a superheated steam flow regulating valve, and the superheated steam flow regulating valve is disposed on the superheated steam input pipeline.
[0014] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0016] Figure 1 A schematic structural diagram of a superheated steam cooling device provided in an embodiment of the present application.
[0017] Reference numerals:
[0018] A superheated steam input pipeline 110, a superheated steam output pipeline 111, a steam desuperheater 112, a control valve 113, a temperature detector 114, and a superheated steam flow regulating valve 115;
[0019] Steam condensate pump 120 , finned pipe radiator 121 , condensate delivery pipe 122 . DETAILED DESCRIPTION
[0020] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0021] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0022] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0023] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.
[0024] At present, superheated steam is increasingly becoming the main steam source among steam users in various industries. The heat transfer coefficient of superheated steam is low, which leads to reduced production efficiency of heat exchange equipment. In addition, when using superheated steam, the life of the equipment is shortened, the maintenance rate is increased, and the operating costs are increased. Therefore, the superheated steam needs to be cooled down and converted into saturated steam before it can be supplied to the heat exchange equipment.
[0025] In the related art, chemical plants use external cold desalted water to be atomized through an atomizing device inside a desuperheater, and then directly mix with superheated steam and quickly evaporate into steam after increasing the surface area ratio of water, thereby lowering the temperature of superheated steam to achieve the purpose of cooling. The amount of cold desalted water added is controlled by measuring the steam temperature downstream of the desuperheater.
[0026] However, this superheated steam cooling method has the following problems: using cold desalted water outside the chemical plant requires adding cold desalted water pipelines and pipeline heating, and using external cold desalted water also leads to increased operating costs; using cold desalted water and steam directly to mix and cool down the medium has a large temperature difference, the temperature drops too much, and causes energy loss.
[0027] In order to solve the above-mentioned problems, the present application proposes a superheated steam cooling device. The embodiments of the present application are further described below in conjunction with the accompanying drawings.
[0028] Reference Figure 1The present application provides a superheated steam cooling device, comprising: a superheated steam input pipeline 110, a superheated steam output pipeline 111, a condensate delivery pipeline 122, a finned pipe radiator 121, a steam condensate pump 120, a condensate flow control mechanism, a steam cooler 112 and chemical equipment; the steam cooler 112 is respectively connected to the output end of the superheated steam input pipeline 110, the input end of the superheated steam output pipeline 111 and the output end of the condensate delivery pipeline 122, the steam condensate pump 120 and the finned pipe radiator 121 are both arranged on the condensate delivery pipeline 122, and the finned pipe radiator 121 is arranged between the steam condensate pump 120 and the steam cooler 112, the two ends of the condensate flow control mechanism are respectively connected to the condensate delivery pipeline 122 and the superheated steam output pipeline 111, and the end of the condensate flow control mechanism connected to the condensate delivery pipeline 122 is located at the finned pipe radiator 121. and the steam desuperheater 112, the chemical equipment is respectively connected to the output end of the superheated steam output pipe 111 and the steam condensate pump 120; the steam condensate pump 120 is used to transport the steam condensate in the chemical equipment to the condensate transport pipe 122, the fin pipe radiator 121 is used to cool the steam condensate in the condensate transport pipe 122, and transport the cooled steam condensate to the steam desuperheater 112, the superheated steam input pipe 110 is used to transport the superheated steam to be processed to the steam desuperheater 112, the steam desuperheater 112 is used to cool the superheated steam to be processed according to the steam condensate to obtain the target superheated steam, the superheated steam output pipe 111 is used to output the target superheated steam to the chemical equipment, and the condensate flow control mechanism is used to control the delivery amount of the steam condensate to the steam desuperheater 112 according to the temperature of the target superheated steam in the superheated steam output pipe 111.
[0029] It should be noted that the steam condensate is generated after the target superheated steam of the previous cycle in the chemical equipment operates. The steam condensate temperature inside the chemical equipment is reduced by utilizing the heat dissipation principle of the finned pipe radiator 121 in contact with the air and then sent to the steam desuperheater 112. The steam condensate is in direct contact with the superheated steam to be processed, thereby reducing the temperature of the superheated steam and realizing the recovery and reuse of the steam condensate.
[0030] In the present application, the steam condensate in the chemical equipment can be recycled and reused, reducing the use of cold desalted water, thereby reducing the operating cost of the device; the steam condensate temperature does not need to be excessively cooled, and the steam condensate temperature can be effectively utilized for atomization to cool the superheated steam, without the need for external water resources to be reinvested, thereby reducing the amount of steam used for heating the cold desalted water pipeline. Through this arrangement, the present application reduces the cost of cooling the superheated steam, while realizing the recycling and reuse of the steam condensate, and can cool the superheated steam more reasonably.
[0031] Reference Figure 1It can be understood that the condensate flow control mechanism includes a control valve 113 and a temperature detector 114. The two ends of the temperature detector 114 are respectively connected to the superheated steam output pipeline 111 and the control valve 113. The control valve 113 is arranged on the condensate delivery pipeline 122. The temperature detector 114 is used to perform temperature detection on the target superheated steam in the superheated steam output pipeline 111 to obtain a temperature detection value, and transmit the temperature detection value to the control valve 113. The control valve 113 is used to adjust the delivery amount of steam condensate to the steam desuperheater 112 according to the temperature detection value.
[0032] It can be understood that the control valve 113 is provided with a controller and an actuator, and the controller is connected to the actuator and the temperature detector 114 respectively. The controller is used to control the actuator to adjust the delivery amount of steam condensate to the steam desuperheater 112 according to the temperature detection value sent by the temperature detector 114.
[0033] It can be understood that the superheated steam cooling device also includes a superheated steam generator, which is connected to the input end of the superheated steam input pipeline 110.
[0034] It should be noted that, by providing a superheated steam generator, the superheated steam to be processed in the superheated steam generator is transported to the steam desuperheater 112 through the superheated steam input pipeline 110 .
[0035] Reference Figure 1 It can be understood that the superheated steam cooling device further includes a superheated steam flow regulating valve 115, which is arranged on the superheated steam input pipeline 110.
[0036] It should be noted that, by providing the superheated steam flow regulating valve 115 , the flow of the superheated steam to be processed delivered from the superheated steam generator to the steam desuperheater 112 can be regulated.
[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0038] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.
[0039] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.
Claims
1. A superheated steam desuperheating device, characterized in that: include: Superheated steam input pipeline, superheated steam output pipeline, condensate delivery pipeline, finned pipe radiator, steam condensate pump, condensate flow control mechanism, steam desuperheater and chemical equipment; The steam desuperheater is respectively connected to the output end of the superheated steam input pipeline, the input end of the superheated steam output pipeline, and the output end of the condensate delivery pipeline; the steam condensate pump and the finned pipe radiator are both arranged on the condensate delivery pipeline, and the finned pipe radiator is arranged between the steam condensate pump and the steam desuperheater; the two ends of the condensate flow control mechanism are respectively connected to the condensate delivery pipeline and the superheated steam output pipeline, and the end of the condensate flow control mechanism connected to the condensate delivery pipeline is located between the finned pipe radiator and the steam desuperheater; the chemical equipment is respectively connected to the output end of the superheated steam output pipeline and the steam condensate pump; The steam condensate pump is used to transport the steam condensate in the chemical equipment to the condensate transport pipeline, the fin pipe radiator is used to cool the steam condensate in the condensate transport pipeline, and transport the cooled steam condensate to the steam desuperheater, the superheated steam input pipeline is used to transport the superheated steam to be processed to the steam desuperheater, the steam desuperheater is used to cool the superheated steam to be processed according to the steam condensate to obtain target superheated steam, the superheated steam output pipeline is used to output the target superheated steam to the chemical equipment, and the condensate flow control mechanism is used to control the delivery amount of the steam condensate to the steam desuperheater according to the temperature of the target superheated steam in the superheated steam output pipeline.
2. The superheated steam desuperheating device according to claim 1, characterized in that: The condensate flow control mechanism includes a control valve and a temperature detector, wherein two ends of the temperature detector are respectively connected to the superheated steam output pipeline and the control valve, and the control valve is arranged on the condensate delivery pipeline. The temperature detector is used to detect the temperature of the target superheated steam in the superheated steam output pipeline to obtain a temperature detection value, and transmit the temperature detection value to the control valve, and the control valve is used to adjust the delivery amount of the steam condensate to the steam desuperheater according to the temperature detection value.
3. The superheated steam desuperheating device according to claim 2, characterized in that: The control valve is provided with a controller and an actuator, the controller is connected to the actuator and the temperature detector respectively, and the controller is used to control the actuator to adjust the delivery amount of the steam condensate to the steam desuperheater according to the temperature detection value sent by the temperature detector.
4. The superheated steam desuperheating device according to claim 1, characterized in that: The superheated steam cooling device further comprises a superheated steam generator, and the superheated steam generator is connected to the input end of the superheated steam input pipeline.
5. The superheated steam desuperheating device according to claim 1, characterized in that: The superheated steam cooling device further comprises a superheated steam flow regulating valve, and the superheated steam flow regulating valve is arranged on the superheated steam input pipeline.