Industrial steam supply temperature and pressure adjusting system

Abstract

The utility model discloses an industrial steam supply temperature and pressure adjusting system which comprises a waste heat boiler, a high-pressure steam pipeline, a low-pressure steam pipeline, a steam temperature control device and a steam pressure control device. The steam pressure control device comprises a steam pressure matcher, and two air inlets of the steam pressure matcher are connected with the high-pressure steam pipeline and the low-pressure steam pipeline through a first by-pass pipe and a second by-pass pipe respectively. An air outlet of the steam pressure control device is provided with a medium-pressure steam pipeline; the high-pressure steam pipeline, the medium-pressure steam pipeline and the low-pressure steam pipeline are each provided with a steam temperature control device, and the steam temperature control devices are used for adjusting the temperature of steam in the corresponding pipelines. The device further comprises a controller, and the steam temperature control device and the steam pressure control device are electrically connected with the controller. Temperature-pressure-adjustable high-pressure, medium-pressure and low-pressure steam can be output at the same time according to heat supply parameter requirements, and the temperature and the pressure of the steam can be adjusted and controlled accurately, stably and reliably.

Description

Technical Field

[0001] The utility model relates to the technical field of steam supply, in particular to an industrial steam supply temperature and pressure regulating system. Background Art

[0002] In many industrial production projects, high-temperature waste gas with different parameters is generated. These waste gases can be used as waste heat boilers to generate steam to meet the steam requirements of the production process. The steam parameters of these waste heat boilers are determined by their respective steam requirements and often have different pressure levels.

[0003] Different machines or equipment have different steam temperature and pressure requirements; however, the existing steam supply system cannot supply high, medium and low pressure steam at different temperatures at the same time, but is adapted through external pressure and temperature control devices, which is costly and cumbersome to install, and the temperature and pressure control is not precise enough to meet the existing industrial manufacturing needs.

[0004] Therefore, it is necessary to develop an industrial steam supply temperature and pressure regulation system that can simultaneously output high, medium and low pressure steam with adjustable temperature and pressure according to the heating parameter requirements, and the steam temperature and pressure regulation control is accurate, stable and reliable. Utility Model Content

[0005] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0006] An industrial steam supply temperature and pressure regulating system, characterized in that it comprises a waste heat boiler, a high-pressure steam pipeline, a low-pressure steam pipeline, a steam temperature control device and a steam pressure control device;

[0007] The air inlet ends of the high-pressure steam pipeline and the low-pressure steam pipeline are respectively connected to the waste heat boiler, the steam pressure control device comprises a steam pressure matcher, the two air inlets of the steam pressure matcher are respectively connected to the high-pressure steam pipeline and the low-pressure steam pipeline through a first bypass pipe and a second bypass pipe, and a medium-pressure steam pipeline is arranged on the air outlet of the steam pressure control device;

[0008] The high-pressure steam pipeline, the medium-pressure steam pipeline and the low-pressure steam pipeline are respectively provided with a steam temperature control device, and the steam temperature control device is used to adjust the temperature of the steam in the corresponding steam pipeline;

[0009] It also includes a controller, and the steam temperature control device and the steam pressure control device are electrically connected to the controller.

[0010] Preferably, the steam pressure control device further comprises a first valve and a second valve respectively arranged on the first bypass pipe and the second bypass pipe;

[0011] The first valve and the second valve are electrically connected to the controller.

[0012] Preferably, the water inlet ends of the multiple steam temperature control devices are connected to the cooling water main pipe, and the steam temperature control device includes two steam temperature control components arranged in parallel, the water inlet ends of the two steam temperature control components are connected to the cooling water main pipe, and the water outlet ends are connected to the high-pressure steam pipe, the medium-pressure steam pipe or the low-pressure steam pipe.

[0013] Preferably, the steam temperature control component includes a cooling water branch pipe and a desuperheater arranged on the cooling water branch pipe, the water inlet end of the cooling water branch pipe is connected to the cooling water main pipe, and the nozzle of the desuperheater is connected to the interior of the high-pressure steam pipe, the medium-pressure steam pipe or the low-pressure steam pipe.

[0014] Preferably, the steam temperature control component also includes a third valve for controlling the on-off and opening degree of the cooling water branch pipe.

[0015] Preferably, the gas outlet ends of the high-pressure steam pipeline, the medium-pressure steam pipeline and the low-pressure steam pipeline are respectively provided with a first temperature sensor, a second temperature sensor and a third temperature sensor.

[0016] Preferably, a first pressure sensor, a second pressure sensor and a third pressure sensor are respectively provided at the gas outlet ends of the high-pressure steam pipeline, the medium-pressure steam pipeline and the low-pressure steam pipeline.

[0017] Preferably, the high-pressure steam pipeline and the low-pressure steam pipeline are provided with a first filter and a first stop valve in sequence at one end close to the waste heat boiler.

[0018] Preferably, a second filter and a second stop valve are sequentially provided at the water inlet end of the cooling water main pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The utility model can output high, medium and low pressure steam with adjustable temperature and pressure at the same time according to the heating parameter requirements, and the steam temperature and pressure regulation control is accurate, stable and reliable.

[0021] 2. The steam temperature control device composed of two steam temperature control components arranged in parallel can make the two steam temperature control components work at the same time to efficiently cool the steam, thereby improving the cooling efficiency and effect; one of them can also be put into operation while the other is used as a standby. When one of them is repaired or damaged, the standby steam temperature control component can be quickly started to work, thereby achieving maintenance and repair without stopping operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the steam temperature control device in the utility model;

[0024] Among them: waste heat boiler 1, high-pressure steam pipeline 2, low-pressure steam pipeline 3, steam temperature control device 4, steam pressure control device 5, medium-pressure steam pipeline 6, controller 7, steam temperature control component 41, steam pressure matcher 51, first valve 52, second valve 53, cooling water branch pipe 411, cooler 412, third valve 413, first bypass pipe 10, second bypass pipe 20, cooling water main pipe 30, first filter 40, first stop valve 50, second filter 60, second stop valve 70, first temperature sensor 1a, second temperature sensor 2a, third temperature sensor 3a, first pressure sensor 1b, second pressure sensor 2b, third pressure sensor 3b. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right", "up", "down", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0029] like Figure 1 , 2 As shown, an industrial steam supply temperature and pressure regulating system includes a waste heat boiler 1, a high-pressure steam pipeline 2, a low-pressure steam pipeline 3, a steam temperature control device 4 and a steam pressure control device 5;

[0030] The air inlet ends of the high-pressure steam pipeline 2 and the low-pressure steam pipeline 3 are respectively connected to the waste heat boiler 1, and the steam pressure control device 5 includes a steam pressure matcher 51. The two air inlets of the steam pressure matcher 51 are respectively connected to the high-pressure steam pipeline 2 and the low-pressure steam pipeline 3 through a first bypass pipe 10 and a second bypass pipe 20, and a medium-pressure steam pipeline 6 is provided on the air outlet of the steam pressure control device 5;

[0031] The high-pressure steam pipeline 2, the medium-pressure steam pipeline 6 and the low-pressure steam pipeline 3 are respectively provided with a steam temperature control device 4, and the steam temperature control device 4 is used to adjust the temperature of the steam in the corresponding steam pipeline;

[0032] It also includes a controller 7 , and the steam temperature control device 4 and the steam pressure control device 5 are electrically connected to the controller 7 .

[0033] In this embodiment, high-pressure steam and low-pressure steam are mixed to form medium-pressure steam through a steam pressure matcher 51. At the same time, steam temperature control devices 4 are respectively provided on the high-pressure steam pipeline 2, the medium-pressure steam pipeline 6 and the low-pressure steam pipeline 3 to control and adjust the steam temperature of the corresponding pipelines, so that the system can simultaneously output high, medium and low-pressure steam with adjustable temperature and pressure according to the heating parameter requirements, and the scope of application is greatly improved.

[0034] Further, such as Figure 1 , 2 As shown, the steam pressure control device 5 further includes a first valve 52 and a second valve 53 respectively arranged on the first bypass pipe 10 and the second bypass pipe 20; the first valve 52 and the second valve 53 are electric valves;

[0035] The first valve 52 and the second valve 53 are electrically connected to the controller 7 .

[0036] In this embodiment, under the action of the controller 7, the opening of the first valve 52 and the second valve 53 can be accurately controlled to control the amount of high-pressure steam and low-pressure steam entering the steam pressure matcher 51, so that the pressure of the mixed medium-pressure steam can be accurately controlled to meet more heating parameter requirements.

[0037] Further, such as Figure 1 As shown, the water inlet ends of the multiple steam temperature control devices 4 are connected to the cooling water main pipe 30, and the steam temperature control device 4 includes two steam temperature control components 41 arranged in parallel, the water inlet ends of the two steam temperature control components 41 are connected to the cooling water main pipe 30, and the water outlet ends are connected to the high-pressure steam pipe 2, the medium-pressure steam pipe 6 or the low-pressure steam pipe 3.

[0038] In this embodiment, the above structure allows the two steam temperature control components 41 to work simultaneously to efficiently cool the steam in the steam pipe, thereby improving the cooling efficiency and effect; one of them can also be operated while the other is used as a standby. When one of them is repaired or damaged, the standby steam temperature control component 41 can be quickly started to work, thereby achieving maintenance and repair without stopping operation.

[0039] Further, such as Figure 1 , 2 As shown, the steam temperature control component 41 includes a cooling water branch pipe 411 and a cooler 412 arranged on the cooling water branch pipe 411, the water inlet end of the cooling water branch pipe 411 is connected to the cooling water main pipe 30, and the nozzle of the cooler 412 is connected to the interior of the high-pressure steam pipe 2, the medium-pressure steam pipe 6 or the low-pressure steam pipe 3.

[0040] In this embodiment, the desuperheater 412 is the prior art in the field, and its structure is not described in detail here. When working, the water in the desuperheater water branch pipe 411 is sprayed from the nozzle into the steam pipe through the desuperheater 412, and is mixed with the high-temperature steam to form steam that meets the heating parameter requirements.

[0041] Furthermore, the steam temperature control component 41 also includes a third valve 413 for controlling the on-off and opening degree of the cooling water branch pipe 411, and the third valve 413 is an electric valve.

[0042] In this embodiment, the on / off and opening degree of the third valve 413 are controlled by the controller 7, so that the temperature of the steam output from the high-pressure steam pipeline 2, the medium-pressure steam pipeline 6 and the low-pressure steam pipeline 3 can be accurately controlled.

[0043] Further, such as Figure 1 As shown, the gas outlet ends of the high-pressure steam pipe 2, the medium-pressure steam pipe 6 and the low-pressure steam pipe 3 are respectively provided with a first temperature sensor 1a, a second temperature sensor 2a and a third temperature sensor 3a.

[0044] In this embodiment, the first temperature sensor 1a, the second temperature sensor 2a and the third temperature sensor 3a are electrically connected to the controller 7. The controller 7 and the temperature sensors can monitor the temperatures of the high, medium and low pressure steam in real time, and adjust and control the temperatures of the high, medium and low pressure steam to meet the needs of more usage scenarios.

[0045] Further, such as Figure 1 As shown, the first pressure sensor 1b, the second pressure sensor 2b and the third pressure sensor 3b are respectively provided at the gas outlet ends of the high-pressure steam pipe 2, the medium-pressure steam pipe 6 and the low-pressure steam pipe 3.

[0046] In this embodiment, the first pressure sensor 1b, the second pressure sensor 2b and the third pressure sensor 3b are electrically connected to the controller 7. The controller 7 and the pressure sensors can monitor the pressures of the high, medium and low pressure steam in real time, and control and adjust the pressure of the medium pressure steam to meet the needs of more usage scenarios.

[0047] Further, such as Figure 1 As shown, the high-pressure steam pipe 2 and the low-pressure steam pipe 3 are provided with a first filter 40 and a first stop valve 50 in sequence at one end close to the waste heat boiler 1 .

[0048] In this embodiment, the first filter 40 is used to filter various impurities in the steam pipeline, and the first stop valve 50 is used to control the on-off of the steam pipeline.

[0049] Further, such as Figure 1 As shown, the water inlet end of the cooling water main pipe 30 is provided with a second filter 60 and a second stop valve 70 in sequence.

[0050] In this embodiment, the second filter 60 is used to filter various impurities in the cooling water main pipe 30 , and the second stop valve 70 is used to control the opening and closing of the cooling water main pipe 30 .

[0051] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the claims of the utility model patent.

Claims

1. An industrial steam supply temperature and pressure regulation system, characterized in that: Including waste heat boiler, high pressure steam pipeline, low pressure steam pipeline, steam temperature control device and steam pressure control device; The air inlet ends of the high-pressure steam pipeline and the low-pressure steam pipeline are respectively connected to the waste heat boiler, the steam pressure control device comprises a steam pressure matcher, the two air inlets of the steam pressure matcher are respectively connected to the high-pressure steam pipeline and the low-pressure steam pipeline through a first bypass pipe and a second bypass pipe, and a medium-pressure steam pipeline is arranged on the air outlet of the steam pressure control device; The high-pressure steam pipeline, the medium-pressure steam pipeline and the low-pressure steam pipeline are respectively provided with a steam temperature control device, and the steam temperature control device is used to adjust the temperature of the steam in the corresponding steam pipeline; It also includes a controller, and the steam temperature control device and the steam pressure control device are electrically connected to the controller.

2. The industrial steam supply temperature and pressure regulating system according to claim 1, characterized in that: The steam pressure control device further comprises a first valve and a second valve respectively arranged on the first bypass pipe and the second bypass pipe; The first valve and the second valve are electrically connected to the controller.

3. The industrial steam supply temperature and pressure regulating system according to claim 1, characterized in that: The water inlet ends of the multiple steam temperature control devices are connected to the cooling water main pipe. The steam temperature control device includes two steam temperature control components arranged in parallel. The water inlet ends of the two steam temperature control components are connected to the cooling water main pipe, and the water outlet ends are connected to the high-pressure steam pipeline, the medium-pressure steam pipeline or the low-pressure steam pipeline.

4. The industrial steam supply temperature and pressure regulating system according to claim 3 is characterized in that: The steam temperature control component includes a cooling water branch pipe and a cooler arranged on the cooling water branch pipe. The water inlet end of the cooling water branch pipe is connected to the cooling water main pipe, and the nozzle of the cooler is connected to the inside of the high-pressure steam pipe, the medium-pressure steam pipe or the low-pressure steam pipe.

5. The industrial steam supply temperature and pressure regulating system according to claim 3, characterized in that: The steam temperature control component also includes a third valve for controlling the on-off and opening degree of the cooling water branch pipe.

6. The industrial steam supply temperature and pressure regulating system according to claim 1, characterized in that: The gas outlet ends of the high-pressure steam pipeline, the medium-pressure steam pipeline and the low-pressure steam pipeline are respectively provided with a first temperature sensor, a second temperature sensor and a third temperature sensor.

7. The industrial steam supply temperature and pressure regulating system according to claim 1, characterized in that: The first pressure sensor, the second pressure sensor and the third pressure sensor are respectively arranged at the gas outlet ends of the high-pressure steam pipeline, the medium-pressure steam pipeline and the low-pressure steam pipeline.

8. The industrial steam supply temperature and pressure regulating system according to claim 1, characterized in that: The high-pressure steam pipeline and the low-pressure steam pipeline are provided with a first filter and a first stop valve in sequence at one end close to the waste heat boiler.

9. The industrial steam supply temperature and pressure regulating system according to claim 4, characterized in that: The water inlet end of the cooling water main pipe is provided with a second filter and a second stop valve in sequence.

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