CN215150270U - Waste heat recovery system for still kettle and steam curing pool - Google Patents
Waste heat recovery system for still kettle and steam curing pool Download PDFInfo
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- CN215150270U CN215150270U CN202121782956.3U CN202121782956U CN215150270U CN 215150270 U CN215150270 U CN 215150270U CN 202121782956 U CN202121782956 U CN 202121782956U CN 215150270 U CN215150270 U CN 215150270U
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Abstract
The utility model provides a be used for evaporating cauldron and evaporate pond waste heat recovery system of supporting, including evaporating the cauldron, evaporating the pond of supporting and evaporating cauldron steam-pouring steam-distributing cylinder, evaporate cauldron steam-pouring steam-distributing cylinder import and evaporate cauldron intercommunication, evaporate cauldron steam-pouring steam-distributing cylinder export and evaporate pond intercommunication of supporting, evaporate cauldron bottom export and evaporate cauldron steam-pouring steam-distributing cylinder export intercommunication for utilize the residual pressure to evaporate the cauldron in residual steam or/and liquid input to evaporate the pond of supporting. The utility model discloses can fully retrieve steam energy, reduce the emission of steam to the noise has been reduced.
Description
Technical Field
The utility model relates to a concrete pile manufacturing industry or concrete pile maintenance field, in particular to are used for evaporating to press the cauldron and evaporate foster pond waste heat recovery system.
Background
The existing mode for recycling the waste heat of the still kettle of most companies is to arrange an open heat exchange water tank beside the still kettle in a workshop for heating boiler feed water, and the existing problems are as follows:
1. the recycling efficiency is low, the amount of cold water from a boiler is limited, part of cold water is utilized when the steam-water tank is drained by the still kettle, and part of cold water is discharged into air through flash steam;
2. the temperature of the alkaline water overflowing and discharged from the open water tank is too high when the autoclave discharges water to the water tank, and the heat waste is large.
3. The turnover rate of the still kettle is high in some companies, and the waste heat recovery of the still kettle and the steam curing pool cannot fully recover the residual steam and water because the pressure reduction time is long, so that a large amount of heat is wasted;
4. the still kettle directly discharges the residual steam to the air at about 0.3-0.5Mpa, the heat waste is huge, and the still kettle generates great noise when discharging the residual steam to the air.
Disclosure of Invention
To the not enough that exists among the prior art, the utility model provides a be used for evaporating the cauldron and evaporate foster pond waste heat recovery system, can fully retrieve the steam energy, reduce the emission of steam to the noise has been reduced.
The utility model discloses a realize above-mentioned technical purpose through following technological means.
The waste heat recovery system for the still kettle and the steam curing pool comprises the still kettle, the steam curing pool and a still kettle steam-pouring steam-distributing cylinder, wherein an inlet of the still kettle steam-pouring steam-distributing cylinder is communicated with the still kettle, an outlet of the still kettle steam-pouring steam-distributing cylinder is communicated with the steam curing pool, and an outlet at the bottom of the still kettle is communicated with an outlet of the still kettle steam-pouring steam-distributing cylinder and is used for inputting residual steam or/and liquid in the still kettle into the steam curing pool by utilizing residual pressure.
And further, the steam-water separator also comprises a high-temperature water tank, an outlet at the bottom of the still kettle is communicated with the high-temperature water tank, and residual steam and/or condensed water are directly input into the high-temperature water tank for storage through residual pressure in the still kettle.
The steam still further comprises a residual steam extraction device and a pumping system, wherein a second inlet of the residual steam extraction device is communicated with an outlet of a steam pouring and distributing cylinder of the steam still, an outlet of the residual steam extraction device is communicated with the high-temperature water tank, the high-temperature water tank is communicated with a first inlet of the residual steam extraction device through the pumping system, and negative pressure is generated in the residual steam extraction device through the pumping system and is used for sucking residual steam in the steam still into the residual steam extraction device.
And the first spraying system is arranged on a pipeline between the second inlet of the residual steam extraction device and the outlet of the steam pouring and distributing cylinder of the still kettle and is used for condensing steam in the pipeline and storing the steam into high-temperature water after the steam becomes the high-temperature water.
Further, the raffinate steam extraction device comprises a shell, an injection zone, a reducing section and a gradually expanding section, wherein the outlet of the gradually expanding section is the outlet of the raffinate steam extraction device; the inner part of the shell is provided with an injection area for generating high-pressure jet; the jet zone inlet is a first inlet, the jet zone is communicated with the reducing section and the gradually expanding section in sequence, the reducing section is provided with a second inlet, and the reducing section generates negative pressure through high-pressure jet flow.
And the steam curing pool is communicated with the high-temperature water tank through the second spraying system and is used for heating the tubular pile mould in the steam curing pool.
The steam kettle is internally communicated with the high-temperature water tank through the third spraying system, high-temperature water in the high-temperature water tank is sprayed into the steam kettle to absorb heat of the kettle body and the pile body, the high-temperature water sprayed into the kettle is vaporized into steam after absorbing heat, and the generated steam is pumped by the residual steam pumping device to become high-temperature water which is stored in the high-temperature water tank.
And the bottom of the steam curing pool is communicated with the recovery equipment through a reflux system and is used for recovering/discharging condensed water in the steam curing pool.
Further, still include temperature sensor, controller and three-way valve, temperature sensor is used for detecting the temperature of evaporating the interior comdenstion water of fostering pond, the three-way valve import with evaporate fostering bottom of the pool portion intercommunication, export and sewer line intercommunication of three-way valve, another export of three-way valve passes through return-flow system and recovery plant intercommunication, the controller is according to temperature and the setting value that temperature sensor detected, controls the three-way valve and makes to evaporate fostering bottom of the pool portion and sewer line intercommunication or evaporate fostering bottom of the pool portion and recovery plant intercommunication.
Further, the recovery plant is a low-temperature water tank, and the bottom of the steam-curing pool is communicated with the low-temperature water tank through a reflux system.
The beneficial effects of the utility model reside in that:
1. a be used for evaporating pressure cauldron and evaporate pond waste heat recovery system of curing, utilize to evaporate to press the cauldron pressure when the step-down begins higher, can directly carry to evaporating the pond of curing through the pipeline of falling the vapour with the steam and/or comdenstion water that will evaporate in the cauldron, can be used for the heating to evaporate the tubular pile mould of curing in the pond, the energy saving.
2. A be used for evaporating pressure cauldron and evaporate pond waste heat recovery system of curing, when evaporating the pond of curing and need not heat, directly store with steam and/or comdenstion water input high temperature water tank through the residual pressure who evaporates in the cauldron, convenient condensed water and the steam of evaporating the cauldron bottom in time arrange to the greatest extent like this.
3. A be used for evaporating cauldron and evaporate foster pond waste heat recovery system, make through pumping system and take out the interior negative pressure that produces of vapor device, will evaporate in the vapor device through the steam pouring pipeline suction in the vapor device, get into high temperature water tank, can eliminate completely like this and evaporate the cauldron when empty exhaust steam, cause very big noise and steam extravagant.
4. A be used for evaporating press cauldron and evaporate foster pond waste heat recovery system, when evaporating press cauldron pressure to be 0, spout into 90 ℃ of left and right sides through atomizing hot water in evaporating press the cauldron, utilize the heat of pile body to become into steam and utilize again the heating of spout hot water.
Drawings
FIG. 1 is a schematic diagram of a waste heat recovery system for still kettles and steam-curing ponds.
Fig. 2 shows the residual steam extracting device of the present invention.
In the figure:
1-still kettle; 2-pouring steam and gas separating cylinder of the still kettle; 3-a low-temperature water tank; 4-high temperature water tank; 5-steaming pool; 6-main steam pipeline; 7-a first spraying system; 8-a second spraying system; 9-a third spraying system; 10-a reflux system; 11-1-a first steam reversing pipeline; 11-2-a second steam reversing pipeline; 11-3-a first branch point; 11-4-second branch point; 12-a residual steam extraction device; 13-high temperature circulating pump; 14-three-way valve; 12-1-a first inlet; 12-2-a second inlet; 12-3-an outlet of the raffinate steam extraction device; 12-4-divergent section; 12-5-a spray zone; 12-6-tapered section.
Detailed Description
The invention will be further described with reference to the drawings and the following examples, but the scope of the invention is not limited thereto.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1, the waste heat recovery system for the still kettle and the steam curing pool of the utility model comprises a still kettle 1, a steam curing pool 5 and a still kettle steam-pouring steam-distributing cylinder 2, wherein the still kettle 1 and the steam curing pool 5 are respectively communicated with a steam source through a main steam pipeline 6; the steam source provides steam for heating the tubular pile in the still kettle 1 and the tubular pile mould in the steam curing pool 5 respectively. The steam pouring and separating cylinder 2 of the still kettle is a pressure container similar to a gas storage tank. The inlet of the steam still steam-pouring steam-distributing cylinder 2 is communicated with the steam still 1 through a first steam-pouring pipeline 11-1, the outlet of the steam still steam-pouring steam-distributing cylinder 2 is communicated with the steam curing pool 5 through a second steam-pouring pipeline 11-2, the second steam-pouring pipeline 11-2 is provided with a first branch point 11-3, the outlet at the bottom of the steam still 1 is communicated with the first branch point 11-3, so that the outlet at the bottom of the steam still 1 is directly communicated with the steam curing pool 5 through the second steam-pouring pipeline 11-2, and in the pressure reduction process of the steam still 1, because the pressure is higher at the beginning of pressure reduction, residual steam and/or condensed water in the steam still 1 can be directly conveyed to the steam curing pool 5 through the steam-pouring pipeline and can be used for heating a pipe pile mold in the steam curing pool 5. A check valve is added between the first branch point 11-3 and the outlet of the steam pouring and separating cylinder 2 of the still kettle.
The steam-curing pool 5 is not required to be heated, residual steam and/or condensed water are directly input into the high-temperature water tank 4 to be stored through residual pressure in the steam-curing kettle 1, and therefore the condensed water and the residual steam at the bottom of the steam-curing kettle 1 can be conveniently drained in time.
In the pressure reduction process of the still kettle 1, when the pressure in the still kettle 1 can not directly press the residual steam into the high-temperature water tank 4 or the steam curing pool 5, external force needs to be added to assist in sucking out the residual steam in the still kettle 1, if the residual steam is not directly discharged through the still kettle 1, heat waste is huge, and the still kettle generates great noise when the residual steam is discharged to the air. The utility model also comprises a raffinate steam extraction device 12 and a pumping system, as shown in figure 2, the raffinate steam extraction device 12 comprises a shell, an injection zone 12-5, a reducing section 12-6 and a gradually expanding section 12-4, and the outlet of the gradually expanding section 12-4 is the outlet of the raffinate steam extraction device; an injection area 12-5 is arranged in the shell, a plurality of spray heads are arranged in the injection area 12-5, and the spray heads generate high-pressure jet flow; the inlet of the spraying area 12-5 is a first inlet 12-1, the spraying area 12-5 is sequentially communicated with a reducing section 12-6 and a gradually expanding section 12-4, a second inlet 12-2 is arranged on the reducing section 12-6, a spray head generates high-pressure jet flow to shoot to the reducing section 12-6, and the reducing section 12-6 generates negative pressure by utilizing the characteristics of hydraulic jet flow. The outlet of the divergent section 12-4 is an outlet 12-3 of a raffinate steam device. The second steam reversing pipeline 11-2 is provided with a second branch point 11-4, and the second branch point 11-4 is positioned between the first branch point 11-3 and the steam-curing pool 5. The second inlet 12-2 is communicated with the second branch point 11-4, the outlet 12-3 of the residual steam extraction device is communicated with the high-temperature water tank 4, the high-temperature water tank 4 is communicated with the first inlet 12-1 through a pumping system, and negative pressure is generated in the residual steam extraction device 12 through the pumping system and is used for sucking residual steam in the still kettle 1 into the residual steam extraction device 12 through a steam pouring pipeline. The pumping system comprises at least a high temperature circulation pump 13.
A first spraying system 7 is arranged on a pipeline between the second inlet 12-2 and the second branch point 11-4, and the first spraying system 7 sprays cooling water on the pipeline between the second inlet 12-2 and the second branch point 11-4 through a spraying pipe by using a first pump so as to absorb heat of steam in the pipeline and condense the steam in the pipeline into water. The cooling water can be a normal-temperature water source which is connected with the first pump; the cooling water may be the low temperature water tank 3 of the present invention, and the low temperature water tank 3 is connected to the first pump. When the high-temperature water tank 4 is filled with cooling water at a normal temperature, the high-temperature water tank 4 is connected to the first pump.
Still include second sprinkler system 8, steam and support pond 5 and communicate with 4 high temperature water tanks through second sprinkler system 8, and second sprinkler system 8 includes the second pump and evaporates the shower that supports the pond and arrange, and the second pump is high temperature water injection to steam and support in the pond 5 about 90 ℃ in the high temperature water tank, heats the interior tubular pile mould of pond, only needs to evaporate like this and supports the pond and cover can reduce the steam quantity behind the pond.
The steam-water separation device is characterized by further comprising a third spraying system 9, wherein the interior of the still kettle 1 is communicated with the high-temperature water tank 4 through the third spraying system 9 and is used for supplementing steam in the still kettle 1. The third spraying system 9 comprises a third pump and a spraying pipe arranged in the still kettle 1, and sprayed water is instantly vaporized into steam by the pile body heat of the tubular pile in the still kettle 1 by spraying atomized water in the still kettle 1. The spray of the still kettle can be sprayed for many times according to the production rhythm so as to fully absorb the heat of the pile body and cool the tubular pile in the still kettle 1 without influencing the quality of the tubular pile. When the pressure of the autoclave 1 is reduced to 0, atomized hot water at about 90 ℃ is sprayed into the autoclave 1, and the sprayed hot water is heated by the heat of the pile body to be changed into steam for further utilization.
The device further comprises a recovery device, a temperature sensor, a controller and a three-way valve 14, wherein the bottom of the steam-curing pool 5 is communicated with the recovery device through a backflow system 10 and is used for recovering/discharging condensed water in the steam-curing pool 5. When the condensed water at the bottom of the steam-curing pool 5 is pumped to the recovery equipment, the generated negative pressure can be used for assisting in pumping the heat of the residual steam in the still kettle 1. The temperature sensor is used for detecting the temperature of condensed water in the steam-curing pool 5, the inlet of the three-way valve 14 is communicated with the bottom of the steam-curing pool 5, one outlet of the three-way valve 14 is communicated with a sewage pipeline, and the other outlet of the three-way valve 14 is communicated with the recovery equipment through the reflux system 10; the recovery equipment can be a low-temperature water tank 3, and also can be a mixing plant or dilution demoulding equipment. A plurality of three-way valves 14 can be arranged on the reflux system 10, so that the bottom of the steam-curing pool 5 is communicated with the low-temperature water tank 3, the mixing plant or the dilution demoulding equipment. When the temperature detected by the temperature sensor is higher than 50 ℃, the controller controls the three-way valve 14 to enable the bottom of the steam-curing pool 5 to be communicated with the low-temperature water tank 3; when the temperature detected by the temperature sensor is between 30 and 50 ℃, the controller controls the three-way valve 14 to enable the bottom of the steam-curing pool 5 to be communicated with a mixing plant or dilution stripping equipment; when the temperature detected by the temperature sensor is less than 30 ℃, the controller controls the three-way valve 14 to communicate the bottom of the steam-curing pool 5 with the sewage pipeline.
A pressure sensor is arranged in a general still kettle 1 to detect pressure change, and the main working mode is as follows:
when the pressure in the still kettle 1 exceeds 0.5Mpa, residual steam and/or condensed water in the still kettle 1 can be directly conveyed to the steam curing pool 5 through a steam pouring pipeline and can be used for heating a pipe pile mould in the steam curing pool 5.
When the pressure in the still kettle 1 is reduced to be less than 0.3Mpa, namely the residual steam and/or condensed water can not be pressed into the steam curing pool 5 by utilizing the residual pressure, the high-temperature water tank 4 is communicated with the first inlet 12-1 through a pumping system, and the residual steam pumping device 12 generates negative pressure through the pumping system, so that the residual steam in the still kettle 1 is sucked into the residual steam pumping device 12 through a steam pouring pipeline. The steam raising pool 5 uses the main steam pipeline 6 to provide steam to continue heating.
When the pressure in the still kettle 1 is 0, atomized water is sprayed into the still kettle 1, the sprayed water is instantly vaporized into steam by the heat of the pile body of the tubular pile in the still kettle 1, negative pressure is generated in the residual steam pumping device 12 through the pumping system, and the steam generated in the still kettle 1 is sucked into the residual steam pumping device 12 and enters the high-temperature water tank 4.
When the steam-curing pool 5 covers the pool, the second spraying system 8 is started to spray hot water in the high-temperature water tank 4 into the steam-curing pool 5 to heat the pipe pile die in the pool.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above detailed description is only for the purpose of illustrating the practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A waste heat recovery system for a still kettle and a steam curing pool comprises the still kettle (1) and the steam curing pool (5) and is characterized by also comprising a still kettle steam-pouring steam-distributing cylinder (2),
the inlet of the steam pouring steam distributing cylinder (2) of the still kettle is communicated with the still kettle (1), the outlet of the steam pouring steam distributing cylinder (2) of the still kettle is communicated with the steam curing pool (5), and the outlet at the bottom of the still kettle (1) is communicated with the outlet of the steam pouring steam distributing cylinder (2) of the still kettle, so that residual steam or/and liquid in the still kettle (1) can be input into the steam curing pool (5) by utilizing residual pressure.
2. The waste heat recovery system for the still kettle and the steam curing pool according to claim 1, further comprising a high-temperature water tank (4), wherein an outlet at the bottom of the still kettle (1) is communicated with the high-temperature water tank (4), and residual steam and/or condensed water are directly input into the high-temperature water tank (4) for storage through residual pressure in the still kettle (1).
3. The waste heat recovery system for the still kettle and the steam curing pool according to claim 2, further comprising a waste steam extraction device (12) and a pumping system,
and a second inlet of the residual steam extraction device (12) is communicated with an outlet of the steam pouring and distributing cylinder (2) of the still kettle, an outlet of the residual steam extraction device (12) is communicated with the high-temperature water tank (4), the high-temperature water tank (4) is communicated with a first inlet of the residual steam extraction device (12) through a pumping system, and negative pressure is generated in the residual steam extraction device (12) through the pumping system and is used for sucking residual steam in the still kettle (1) into the residual steam extraction device (12).
4. The waste heat recovery system for the still kettle and the steam curing pool according to claim 3, further comprising a first spraying system (7), wherein the first spraying system (7) is arranged on a pipeline between the second inlet of the residual steam extraction device (12) and the outlet of the steam pouring steam distributing cylinder (2) of the still kettle, and is used for condensing steam in the pipeline.
5. The waste heat recovery system for the still kettle and the steam curing pool according to claim 3, wherein the raffinate steam device (12) comprises a shell, a spraying area (12-5), a reducing section (12-6) and a gradually expanding section (12-4), and an outlet of the gradually expanding section (12-4) is an outlet of the raffinate steam device; the inside of the shell is provided with an injection area (12-5) for generating high-pressure jet flow; the inlet of the injection zone (12-5) is a first inlet (12-1), the injection zone (12-5) is sequentially communicated with a reducing section (12-6) and a gradually expanding section (12-4), a second inlet (12-2) is formed in the reducing section (12-6), and negative pressure is generated in the reducing section (12-6) through high-pressure jet flow.
6. The waste heat recovery system for the still kettle and the steam curing pool according to claim 2, further comprising a second spraying system (8), wherein the steam curing pool (5) is communicated with the high-temperature water tank (4) through the second spraying system (8) and is used for heating the pipe pile mold in the steam curing pool (5).
7. The waste heat recovery system for the still kettle and the steam curing pool according to claim 2, further comprising a third spraying system (9), wherein the inside of the still kettle (1) is communicated with the high-temperature water tank (4) through the third spraying system (9) and is used for cooling the tubular piles in the still kettle (1).
8. The waste heat recovery system for the autoclave and the steam-curing pool as claimed in claim 1, further comprising a recovery device, wherein the bottom of the steam-curing pool (5) is communicated with the recovery device through a reflux system (10) for recovering/discharging the condensed water in the steam-curing pool (5).
9. The waste heat recovery system for the autoclave and the steam-curing pool as recited in claim 8, further comprising a temperature sensor, a controller and a three-way valve (14), wherein the temperature sensor is used for detecting the temperature of the condensed water in the steam-curing pool (5), the inlet of the three-way valve (14) is communicated with the bottom of the steam-curing pool (5), one outlet of the three-way valve (14) is communicated with a sewage pipeline, the other outlet of the three-way valve (14) is communicated with the recovery equipment through a reflux system (10), and the controller controls the three-way valve (14) to communicate the bottom of the steam-curing pool (5) with the sewage pipeline or communicate the bottom of the steam-curing pool (5) with the recovery equipment according to the temperature and a set value detected by the temperature sensor.
10. The waste heat recovery system for the still kettle and the steam curing pool according to claim 8, wherein the recovery equipment is a low-temperature water tank (3), and the bottom of the steam curing pool (5) is communicated with the low-temperature water tank (3) through a backflow system (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121782956.3U CN215150270U (en) | 2021-08-02 | 2021-08-02 | Waste heat recovery system for still kettle and steam curing pool |
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| CN202121782956.3U CN215150270U (en) | 2021-08-02 | 2021-08-02 | Waste heat recovery system for still kettle and steam curing pool |
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| CN215150270U true CN215150270U (en) | 2021-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833934A (en) * | 2022-05-17 | 2022-08-02 | 武汉倍嘉福设计咨询有限公司 | Steam distribution system of still kettle and use method thereof |
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- 2021-08-02 CN CN202121782956.3U patent/CN215150270U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833934A (en) * | 2022-05-17 | 2022-08-02 | 武汉倍嘉福设计咨询有限公司 | Steam distribution system of still kettle and use method thereof |
| CN114833934B (en) * | 2022-05-17 | 2023-01-24 | 武汉倍嘉福设计咨询有限公司 | Steam distribution system of still kettle and use method thereof |
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