Still kettle system capable of automatically recovering residual gas

Abstract

The utility model discloses a still kettle system capable of automatically recovering residual gas, which comprises a control module, a main steam supply pipeline, a connecting pipeline and a plurality of still kettles, and the main steam supply pipeline is used for supplying steam; each still kettle is provided with a steam inlet pipeline and a steam guide pipeline, two ends of the steam inlet pipeline are respectively connected with the still kettle and the main steam supply pipeline, and two ends of the steam guide pipeline are respectively connected with the steam inlet pipeline and the connecting pipeline; an induced draft fan and a steam guide switch valve are arranged in the steam guide pipeline, and a steam switch valve is arranged in the steam inlet pipeline between the joint of the steam guide pipeline and the steam inlet pipeline and the main steam supply pipeline; each still kettle is also connected with an air blower, and the air blower is used for blowing air to the still kettle; the steam guide switch valve, the steam switch valve, the induced draft fan and the air blower are all connected with the control module. According to the utility model, the steam in the still kettle after steam curing can be automatically guided into the adjacent still kettle, so that the utilization rate of the steam is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of autoclaves, in particular to an autoclave system for automatically recovering residual gas. Background Art

[0002] The existing production process of pipe piles cannot be separated from an important process - steam curing. This process takes a long time and aims to ensure the quality of the product and the traceability of quality data. At present, the steam curing of pipe piles is mainly achieved through autoclaves, which require a large amount of steam. Every time the finished pipe piles are taken out of the autoclave, a lot of steam in the autoclave will be directly discharged to the outside through the residual gas pipeline, causing unnecessary waste. Utility Model Content

[0003] The utility model provides an autoclave system for automatically recovering residual gas, which can automatically introduce the steam in the autoclave that has completed steam curing into the adjacent autoclave, thereby improving the utilization rate of the steam.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] An embodiment of the utility model provides an autoclave system for automatically recovering residual gas, comprising a control module, a main steam supply pipeline, a connecting pipeline and a plurality of autoclaves, wherein the main steam supply pipeline is used to supply steam; each autoclave is provided with a steam inlet pipeline and a steam guide pipeline, the two ends of the steam inlet pipeline are respectively connected to the autoclave and the main steam supply pipeline, and the two ends of the steam guide pipeline are respectively connected to the steam inlet pipeline and the connecting pipeline; an induced draft fan and a steam guide switch valve are provided in the steam guide pipeline, and a steam switch valve is provided in the steam inlet pipeline between the connection point of the steam guide pipeline with the steam inlet pipeline and the main steam supply pipeline; each autoclave is also connected with a blower, and the blower is used to blow air into the autoclave; the steam guide switch valve, the steam switch valve, the induced draft fan and the blower are all connected to the control module.

[0006] In some embodiments, a flow meter is further provided in the steam guide pipe, and the flow meter is connected to the control module.

[0007] In some embodiments, the connection between the steam inlet pipeline and the autoclave is located on one side of the lower end of the autoclave, and the connection between the blower and the autoclave is located on the other side of the upper end of the autoclave.

[0008] In some embodiments, four autoclaves are provided and arranged in a row along a preset direction.

[0009] In some embodiments, a display is further included, and the display is connected to the control module.

[0010] In some embodiments, the control module includes a PLC controller.

[0011] The utility model has at least the following beneficial effects: in the utility model, after a certain autoclave completes steam curing, the control module can control the steam switch valve of the autoclave to close, the steam guide switch valve to open, and the induced draft fan to start working, and at the same time control the steam switch valve of the autoclave that will receive the steam to close, the steam guide switch valve to open, and the induced draft fan to start working, so as to guide the steam in the autoclave that has completed steam curing to another autoclave; and after the steam guide reaches a preset time, the blower of the autoclave that receives the steam is controlled to start working, so as to supply air to the autoclave that receives the steam, and eliminate the negative pressure inside the autoclave; therefore, the utility model can automatically guide the steam in the autoclave that has completed steam curing into the adjacent autoclave, reduce the waste caused by direct discharge of steam, and improve the utilization rate of steam. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic structural diagram of an autoclave system for automatically recovering residual gas according to an embodiment of the utility model.

[0013] Wherein, the accompanying drawings are marked as follows:

[0014] A first autoclave 10, a second autoclave 20, a third autoclave 30, and a fourth autoclave 40;

[0015] Main steam supply pipeline 100, connecting pipeline 200;

[0016] A first steam inlet pipeline 310, a second steam inlet pipeline 320, a third steam inlet pipeline 330, and a fourth steam inlet pipeline 340;

[0017] A first steam pipeline 410, a second steam pipeline 420, a third steam pipeline 430, and a fourth steam pipeline 440;

[0018] A first steam on-off valve 510, a second steam on-off valve 520, a third steam on-off valve 530, and a fourth steam on-off valve 540;

[0019] A first induced draft fan 610, a second induced draft fan 620, a third induced draft fan 630, and a fourth induced draft fan 640;

[0020] A first steam-conducting on-off valve 710, a second steam-conducting on-off valve 720, a third steam-conducting on-off valve 730, and a fourth steam-conducting on-off valve 740;

[0021] A first blower 810, a second blower 820, a third blower 830, and a fourth blower 840;

[0022] The first flow meter 910 , the second flow meter 920 , the third flow meter 930 , and the fourth flow meter 940 . DETAILED DESCRIPTION

[0023] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.

[0024] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They 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 invention.

[0025] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0026] The embodiment of the utility model provides an autoclave system for automatically recovering residual gas, which is used in conjunction with multiple autoclaves. Two, three or more autoclaves can be provided. For the convenience of description, Figure 1 For example, four autoclaves can be provided, namely, a first autoclave 10, a second autoclave 20, a third autoclave 30 and a fourth autoclave 40. The autoclave system for automatically recovering residual gas also includes a control module, a main steam supply pipeline 100 and a connecting pipeline 200. The entire system can share one control module or include multiple control modules that communicate with each other. The main steam supply pipeline 100 can be connected to a steam generating device for conveying and supplying steam, and the connecting pipeline 200 is mainly used for guiding steam.

[0027] Each autoclave is provided with a steam inlet pipeline and a steam guide pipeline, that is, the first autoclave 10 is connected to the first steam inlet pipeline 310 and the first steam guide pipeline 410, the second autoclave 20 is connected to the second steam inlet pipeline 320 and the second steam guide pipeline 420, the third autoclave 30 is connected to the third steam inlet pipeline 330 and the third steam guide pipeline 430, and the fourth autoclave 40 is connected to the fourth steam inlet pipeline 340 and the fourth steam guide pipeline 440.

[0028] The two ends of all the steam inlet pipelines are respectively connected to the corresponding autoclaves and the main steam supply pipeline 100, that is, the two ends of the first air inlet pipeline 310 are respectively connected to the first autoclave 10 and the main steam supply pipeline 100, the two ends of the second air inlet pipeline 320 are respectively connected to the second autoclave 20 and the main steam supply pipeline 100, the two ends of the third air inlet pipeline 330 are respectively connected to the third autoclave 30 and the main steam supply pipeline 100, and the two ends of the fourth air inlet pipeline 340 are respectively connected to the fourth autoclave 40 and the main steam supply pipeline 100.

[0029] The two ends of the steam pipeline are respectively connected to the steam inlet pipeline and the connecting pipeline 200, that is, the two ends of the first steam pipeline 410 are respectively connected to the first steam inlet pipeline 310 and the connecting pipeline 200, the two ends of the second steam pipeline 420 are respectively connected to the second steam inlet pipeline 320 and the connecting pipeline 200, the two ends of the third steam pipeline 430 are respectively connected to the third steam inlet pipeline 330 and the connecting pipeline 200, and the two ends of the fourth steam pipeline 440 are respectively connected to the fourth steam inlet pipeline 340 and the connecting pipeline 200.

[0030] The steam pipeline is provided with an induced draft fan and a steam switching valve, that is, the first steam pipeline 410 is provided with a first induced draft fan 610 and a first steam switching valve 710, the second steam pipeline 420 is provided with a second induced draft fan 620 and a second steam switching valve 720, the third steam pipeline 430 is provided with a third induced draft fan 630 and a third steam switching valve 730, and the fourth steam pipeline 440 is provided with a fourth induced draft fan 640 and a fourth steam switching valve 740.

[0031] A steam switching valve is provided in the steam inlet pipeline between the connection point of the steam guide pipeline and the steam inlet pipeline and the main steam supply pipeline 100, a first steam switching valve 510 is provided in the first steam inlet pipeline 310 between the connection point of the first steam guide pipeline 410 and the first steam inlet pipeline 310 and the main steam supply pipeline 100, a second steam switching valve 520 is provided in the second steam inlet pipeline 320 between the connection point of the second steam guide pipeline 420 and the second steam inlet pipeline 320 and the main steam supply pipeline 100, a third steam switching valve 530 is provided in the third steam inlet pipeline 330 between the connection point of the third steam guide pipeline 430 and the third steam inlet pipeline 330 and the main steam supply pipeline 100, and a fourth steam switching valve 540 is provided in the fourth steam inlet pipeline 340 between the connection point of the fourth steam guide pipeline 440 and the fourth steam inlet pipeline 340 and the main steam supply pipeline 100.

[0032] Each autoclave is also connected to a blower. The first autoclave 10 is connected to a first blower 810, and the first blower 810 is used to blow air into the first autoclave 10. The second autoclave 20 is connected to a second blower 820, and the second blower 820 is used to blow air into the second autoclave 20. The third autoclave 30 is connected to a third blower 830, and the third blower 830 is used to blow air into the third autoclave 30. The fourth autoclave 40 is connected to a fourth blower 840, and the fourth blower 840 is used to blow air into the fourth autoclave 40.

[0033] The first steam switch valve 510, the second steam switch valve 520, the third steam switch valve 530, the fourth steam switch valve 540, the first induced draft fan 610, the second induced draft fan 620, the third induced draft fan 630, the fourth induced draft fan 640, the first steam switch valve 710, the second steam switch valve 720, the third steam switch valve 730, the fourth steam switch valve 740, the first blower 810, the second blower 820, the third blower 830 and the fourth blower 840 are all connected to the control module. The control module can control the corresponding steam switch valve to open or close, the corresponding steam switch valve to open or close, the corresponding induced draft fan to start or stop working, and the corresponding blower to start or stop working.

[0034] Whenever an autoclave completes steam curing, for example, when the first autoclave 10 completes steam curing, the control module can control the first steam switch valve 310 of the first autoclave 10 to close, the main steam supply pipeline 100 no longer supplies steam to the first autoclave 10, the first steam guide switch valve 710 to open, and the first induced draft fan 610 to start working, so as to prepare to extract the residual steam in the first autoclave 10. If it is necessary to pour the steam in the first autoclave 10 into the second autoclave 20, the second steam switch valve 320 of the second autoclave 20 can be controlled to close at the same time, the main steam supply pipeline 100 no longer supplies steam to the second autoclave 20, the second steam guide switch valve 720 to open, the second induced draft fan 620 to start working, the first steam guide pipeline 410 and the second steam guide pipeline 420 are connected, and the residual steam in the first autoclave 10 can flow to the second autoclave 20. After the time for exporting steam reaches the internal setting time, the control module controls the second blower 820 to start working, so as to blow air to the second autoclave 20, and eliminate the negative pressure generated inside the second autoclave 20. After reaching the set time, the control module controls the second blower 820 to stop working, closes the first steam guide switch valve 710 and the second steam guide switch valve 720, controls the first induced draft fan 610 and the second induced draft fan 620 to stop working, and completes the steam diversion. At the same time, the control module can also control the first steam switch valve 510 to open, so as to resume the air supply to the first autoclave 10, so that the first autoclave 10 can continue to maintain the next pipe pile. When the steam between the first autoclave 10, the second autoclave 20, the third autoclave 30 and the fourth autoclave 40 needs to be diverted, it can be adaptively adjusted according to the above control process, and its specific process will not be repeated.

[0035] Therefore, this embodiment can automatically introduce the steam in the autoclave that has completed steam curing into the adjacent autoclave, thereby reducing the waste caused by direct discharge of steam and improving the utilization rate of steam.

[0036] It should be noted that the steam delivery time can be calculated in advance based on the volume of the autoclave, the speed of the induced draft fan, the air volume of the induced draft fan, the inner diameter of the steam pipe and other data, and the controller can control the steam guide switch valve, the steam switch valve, the induced draft fan and the blower to work in coordination with each other according to the delivery time. Among them, when half of the delivery time is reached, the blower can be turned on so that the blowing time is equal to half of the steam delivery time, which is more effective in eliminating the negative pressure inside the autoclave.

[0037] In some embodiments, a flow meter is further provided in the steam pipeline, specifically, a first flow meter 910 is provided in the first steam pipeline 410, a second flow meter 920 is provided in the second steam pipeline 420, a third flow meter 930 is provided in the third steam pipeline 430, and a fourth flow meter 940 is provided in the fourth steam pipeline 440. The first flow meter 910, the second flow meter 920, the third flow meter 930 and the fourth flow meter 940 are all connected to the control module. The control module can know the flow in each steam pipeline, and can reflect it through the field instrument, so as to view the gas flow in real time.

[0038] In some embodiments, the connection between the steam inlet pipeline and the autoclave is located on one side of the lower end of the autoclave, the connection between the blower and the autoclave is located on the other side of the upper end of the autoclave, and the outlet of the blower can be connected to the flange on the autoclave.

[0039] In some embodiments, four autoclaves are provided and arranged in a row along a preset direction. When steam diversion is performed, it is best to transfer steam between adjacent autoclaves, which can reduce the steam transfer path and complete the steam diversion faster.

[0040] In some embodiments, the autoclave system for automatic waste gas recovery of this embodiment also includes a display, which is connected to the control module. The display can display information such as the current working status of the system, the flow rate of the steam pipeline, and the status of the autoclave, so that the operator can directly grasp the operating status of the system.

[0041] In some embodiments, the control module includes a PLC controller, and the PLC controller can be a CP2H series PLC controller from Omron.

[0042] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.

Claims

1. An autoclave system for automatically recovering residual gas, characterized in that: It includes a control module, a main steam supply pipeline, a connecting pipeline and multiple autoclaves, the main steam supply pipeline is used to supply steam; each autoclave is provided with a steam inlet pipeline and a steam guide pipeline, the two ends of the steam inlet pipeline are respectively connected to the autoclave and the main steam supply pipeline, and the two ends of the steam guide pipeline are respectively connected to the steam inlet pipeline and the connecting pipeline; the steam guide pipeline is provided with an induced draft fan and a steam guide switch valve, and the steam inlet pipeline between the connection between the steam guide pipeline and the steam inlet pipeline and the main steam supply pipeline is provided with a steam switch valve; each autoclave is also connected with a blower, and the blower is used to blow air into the autoclave; the steam guide switch valve, the steam switch valve, the induced draft fan and the blower are all connected to the control module.

2. The autoclave system for automatically recovering residual gas according to claim 1, characterized in that: A flow meter is also provided in the steam guide pipe, and the flow meter is connected to the control module.

3. The autoclave system for automatically recovering residual gas according to claim 1, characterized in that: The connection point between the steam inlet pipeline and the autoclave is located on one side of the lower end of the autoclave, and the connection point between the blower and the autoclave is located on the other side of the upper end of the autoclave.

4. The autoclave system for automatically recovering residual gas according to any one of claims 1 to 3, characterized in that: The autoclaves are provided with four and arranged in a row along a preset direction.

5. The autoclave system for automatically recovering residual gas according to any one of claims 1 to 3, characterized in that: A display is also included, and the display is connected to the control module.

6. The autoclave system for automatically recovering residual gas according to any one of claims 1 to 3, characterized in that: The control module includes a PLC controller.

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