Steam pipeline condensate water recovery device

Abstract

The utility model discloses a steam pipeline condensate water recovery device which comprises a water diversion assembly, a water collection assembly, a heating assembly and a steam exhaust assembly. The water collecting assembly is used for collecting condensate water introduced by the water diversion assembly; the heating assembly is used for heating the condensed water collected by the water collecting assembly into steam; the steam exhaust assembly is used for outputting steam heated by the heating assembly. According to the utility model, the operation cost basically leans against the saved steam cost, and the cost is extremely low; and the influence of the discharge of the condensed water on the safety and environmental protection of a production site is solved, and the device has a great practical value in actual production activities.

Description

TECHNICAL FIELD

[0001] The utility model relates to condensate water recovery technical field especially discloses a steam pipeline condensate water recovery device. BACKGROUND

[0002] Steam is a kind of clean, safe energy carrier and is widely used in production process. But in the steam delivery process, heat dissipation of pipeline to the environment is inevitable, including convection heat transfer and radiation heat transfer, and radiation heat transfer is the main. After the steam in the pipeline releases latent heat of vaporization, it becomes saturated condensate water of the same temperature. Since the use pressure of steam is greater than atmospheric pressure, the heat possessed by condensate water can reach about 25% of the total heat of corresponding steam. Therefore, it is necessary to recover condensate water and the heat carried by condensate water.

[0003] In addition, the disadvantages of condensate water discharge are as follows:

[0004] 1) The discharge of pipeline condensate water is generally directly discharged into the air, which wastes energy.

[0005] 2) The discharge of condensate water affects the safety and environment of the production site.

[0006] 3) Condensate water splashing on equipment and pipelines will cause corrosion or mildew to these equipment and pipelines.

[0007] Therefore, how to effectively recover steam pipeline condensate water and control the corresponding cost is a technical problem to be solved at present. CONTENT OF THE UTILITY MODEL

[0008] The utility model provides a steam pipeline condensate water recovery device, aims at solving the technical problem that the prior art cannot effectively recover steam pipeline condensate water and control the corresponding cost.

[0009] One aspect of the utility model relates to a steam pipeline condensate water recovery device. The steam pipeline condensate water recovery device is connected to a drainage pipe on the steam pipeline. The steam pipeline condensate water recovery device comprises a water introduction assembly, a water collection assembly, a heating assembly and a steam discharge assembly.

[0010] The water introduction assembly is used to introduce condensate water.

[0011] The water collection assembly is connected to the water introduction assembly. The water collection assembly is used to collect condensate water introduced by the water introduction assembly.

[0012] The heating assembly is arranged close to the water collection assembly. The heating assembly is used to heat condensate water collected by the water collection assembly into steam.

[0013] The steam discharge assembly is connected to the water collection assembly. The steam discharge assembly is used to output steam heated by the heating assembly.

[0014] Further, the water guiding assembly comprises a water inlet, which is communicated with the water drainage pipe and used for introducing the condensed water.

[0015] Further, the water collecting assembly comprises a condensed water storage tank, which is communicated with the water inlet and used for collecting the condensed water introduced by the water inlet.

[0016] Further, the steam discharging assembly comprises a steam outlet, which is respectively communicated with the condensed water storage tank and the steam discharge pipe and used for returning the steam heated by the heating assembly into the steam pipeline through the steam discharge pipe.

[0017] Further, the heating assembly comprises a heater and an electric control box, the heater is electrically connected with the electric control box, the heater is arranged in the condensed water storage tank, and the electric control box is arranged close to the outer wall of the condensed water storage tank; the heater is used for heating the condensed water collected by the condensed water storage tank into steam.

[0018] Further, the heating assembly further comprises a water level gauge, the water level gauge comprises a low water level gauge, a middle water level gauge and a high water level gauge, the low water level gauge, the middle water level gauge and the high water level gauge are sequentially arranged at a low water level position, a middle water level position and a high water level position in the condensed water storage tank from low to high; the electric control box is electrically connected with the low water level gauge through a low water level switch, the electric control box is electrically connected with the middle water level gauge through a middle water level switch, and the electric control box is electrically connected with the high water level gauge through a high water level switch.

[0019] Further, the bottom of the condensed water storage tank is provided with a blowdown pipe, the blowdown pipe is communicated with the condensed water storage tank, a blowdown valve is arranged on the blowdown pipe, and the blowdown valve is electrically connected with the electric control box.

[0020] Further, the top of the condensed water storage tank is provided with a water discharge pipe, the water discharge pipe is communicated with the condensed water storage tank, a water discharge valve is arranged on the water discharge pipe, and the water discharge valve is electrically connected with the electric control box.

[0021] The steam pipeline condensed water recovery device provided by the utility model has the advantages that the condensed water recovery device is installed on the original condensed water discharge pipe, the condensed water is recovered into steam state through electric heating, the condensed water is not discharged to the outside of the pipeline, the operation cost is basically offset by the saved steam cost, the cost is extremely low, the influence of the condensed water discharge on the safety and environmental protection of the production site is solved, and the steam pipeline condensed water recovery device has great practical value in actual production activities.

[0022] The steam pipeline condensed water recovery device provided by the utility model has the advantages that the condensed water recovery device is installed on the original condensed water discharge pipe, the condensed water is recovered into steam state through electric heating, the condensed water is not discharged to the outside of the pipeline, the operation cost is basically offset by the saved steam cost, the cost is extremely low, the influence of the condensed water discharge on the safety and environmental protection of the production site is solved, and the steam pipeline condensed water recovery device has great practical value in actual production activities. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Structure diagram of the first embodiment of the steam pipeline condensate water recovery device of the utility model;

[0024] Figure 2 Structure diagram of the second embodiment of the steam pipeline condensate water recovery device of the utility model;

[0025] Figure 3 Structure diagram of the third embodiment of the steam pipeline condensate water recovery device of the utility model;

[0026] Figure 4 Structure diagram of the fourth embodiment of the steam pipeline condensate water recovery device of the utility model;

[0027] Figure 5 Principle diagram of the first embodiment of the steam pipeline condensate water recovery device of the utility model connecting steam pipeline;

[0028] Figure 6 Principle diagram of the second embodiment of the steam pipeline condensate water recovery device of the utility model connecting steam pipeline.

[0029] Explanation of reference numerals:

[0030] 10, water inlet; 20, condensate water storage tank; 30, steam exhaust port; 31, steam exhaust pipe; 41, heater; 43, water level meter; 51, blowdown pipe; 52, blowdown valve; 61, drain pipe; 62, drain valve; 100, steam pipeline; 200, drainage pipe. DETAILED DESCRIPTION

[0031] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0032] For example, Figures 1 to 4As shown, the utility model discloses a steam pipeline condensate water recovery device, steam pipeline condensate water recovery device and the water drain pipe 200 on steam pipeline 100 are connected, including water diversion subassembly, collect water subassembly, heating assembly and exhaust component, wherein, water diversion subassembly is used for introducing the condensate water in water drain pipe 200, collect water subassembly is connected with water diversion subassembly, is used for collecting the condensate water introduced by water diversion subassembly, heating assembly is close to collect water subassembly and is arranged, is used for heating the condensate water collected by collect water subassembly into steam, exhaust component is connected with collect water subassembly, is used for the steam heated into by heating assembly is outputted.

[0033] Preferably, see Figures 1 to 6 The steam pipeline condensate water recovery device provided in the embodiment includes a water inlet 10, the water inlet 10 is connected with the water drain pipe 200, and the condensate water is introduced.

[0034] Further, see Figures 1 to 6 The steam pipeline condensate water recovery device provided in the embodiment includes a condensate water storage tank 20, the condensate water storage tank 20 is connected with the water inlet 10, and the condensate water introduced by the water inlet 10 is collected.

[0035] Further, see Figures 1 to 6 The steam pipeline condensate water recovery device provided in the embodiment includes an exhaust port 30, the exhaust port 30 is connected with the condensate water storage tank 20 and an exhaust pipe 31 respectively, and the steam heated into by the heating assembly is returned to the steam pipeline through the exhaust pipe 31.

[0036] Preferably, see Figures 1 to 6The steam pipeline condensate water recovery device provided in the embodiment includes a heating assembly, the heating assembly includes a heater 41 and an electric control box, the heater 41 is electrically connected with the electric control box, the heater 41 is arranged in the condensate water storage tank 20, the electric control box is arranged close to the outer wall of the condensate water storage tank 20, and the heater 41 is used for heating the condensate water collected by the condensate water storage tank 20 into steam. Specifically, the heating assembly further includes a water level gauge 43, the water level gauge 43 includes a low water level gauge, a middle water level gauge and a high water level gauge, the low water level gauge, the middle water level gauge and the high water level gauge are sequentially arranged at a low water level position, a middle water level position and a high water level position in the condensate water storage tank 20 from low to high, the electric control box is electrically connected with the low water level gauge through a low water level switch, the electric control box is electrically connected with the middle water level gauge through a middle water level switch, and the electric control box is electrically connected with the high water level gauge through a high water level switch. A blowdown pipe 51 is arranged at the bottom of the condensate water storage tank 20, the blowdown pipe 51 is communicated with the condensate water storage tank 20, a blowdown valve 52 is arranged on the blowdown pipe 51, and the blowdown valve 52 is electrically connected with the electric control box. A drain pipe 61 is arranged at the top of the condensate water storage tank 20, the drain pipe 61 is communicated with the condensate water storage tank 20, a drain valve 62 is arranged on the drain pipe 61, and the drain valve 62 is electrically connected with the electric control box. The steam pipeline condensate water recovery device provided in the embodiment detects the high water level gauge, when the electric control box identifies that the condensate water detected by the high water level gauge reaches the high water level position, the drain valve is opened to perform emergency drainage; the middle water level gauge is detected, when the electric control box identifies that the condensate water detected by the middle water level gauge reaches the middle water level position, the middle water level switch is controlled to be closed, the heater is connected with the power supply, and the condensate water in the condensate water storage tank starts to be heated and evaporated; the low water level gauge is detected, when the electric control box identifies that the condensate water detected by the low water level gauge drops below the low water level position, the low water level switch is controlled to be opened, the heater is disconnected from the power supply, and the condensate water in the condensate water storage tank stops evaporating; and the first heating time is counted from when the heater is connected with the power supply, when the first heating time reaches a set first heating time (for example, 5400 / m s ), the heater is directly disconnected from the power supply regardless of whether the middle water level switch is closed or not; meanwhile, whether the low water level gauge is in a closed state is detected, if the low water level gauge is in the closed state, the second heating time is counted from the moment when the heating stops, and when the second heating time reaches a set second heating time (150s), the heater is connected with the power supply to continue heating, and meanwhile, the third heating time is counted.

[0037] As shown in FIG. Figures 1 to 6 , the steam pipeline condensate water recovery device provided in the embodiment has the following working principle:

[0038] After the condensate water condensed by the pipeline is directly collected, the condensate water is directly heated by using the electric heating mode, the heated condensate water returns to the steam state, and returns to the steam pipeline to continue to be used. This technical solution can avoid the high investment cost of the condensate water pipeline construction cost (along with the steam conveying pipeline), and can more effectively recover energy.

[0039] Further explanation of the value is that the steam pipeline is provided according to the standard DL / T5054-2016 'Code for Design of Steam and Water Pipelines in Thermal Power Plants', and the diameter of the drain pipe for low-temperature and low-pressure steam shall not be less than 38mm. In actual engineering design, the drain pipes of long-distance steam pipelines shall not be more than 50m apart. That is, the original steam pipeline has a drain pipe. Our technology is to directly install a steam condensate water recovery device on the original drain pipe to achieve the result of completely not discharging condensate water.

[0040] The steam pipeline condensate water recovery device is composed of a water inlet 10, a steam outlet 30, a condensate water storage tank 20, a heater 41, an electric control box, a water level meter 43 and a blowdown valve 52. The heater 41 is responsible for providing the required heat for heating. The water inlet 10 is used to introduce condensate water from the steam pipeline into the condensate water storage tank. After heating, the steam returns to the steam pipeline 100 from the steam outlet 30. The condensate water storage tank 20 is provided with three water level meters, namely low water level meter, medium water level meter and high water level meter. The water level meter is a sensor for controlling the time to start heating and the time to stop heating. When the low water level position is reached, heating starts. When the medium water level position is reached, heating stops. When the high water level position is reached, the blowdown valve is opened to discharge excess condensate water to ensure the safety of the steam pipeline. The electric control box is an integrated and protective device for electrical equipment.

[0041] The embodiment provides a steam pipeline condensate water recovery device. Compared with the prior art, the steam pipeline condensate water recovery device is connected with the drain pipe on the steam pipeline, and includes a water introduction assembly, a water collection assembly, a heating assembly and a steam discharge assembly. The water introduction assembly is used to introduce condensate water. The water collection assembly is used to collect the condensate water introduced by the water introduction assembly. The heating assembly is used to heat the condensate water collected by the water collection assembly into steam. The steam discharge assembly is used to output the steam heated by the heating assembly. The steam pipeline condensate water recovery device provided in the embodiment installs a condensate water recovery device on the original condensate water drain pipe, recovers the condensate water to the steam state through electric heating, and achieves the result that the pipeline no longer discharges condensate water. The operation cost of the embodiment is basically offset by the saved steam cost, and the cost is very low. However, the influence of condensate water discharge on the safety and environmental protection of the production site is solved, and the embodiment has great practical value in actual production activities.

[0042] While the preferred embodiments of the application have been described, those skilled in the art will be able to make additional variations and modifications without departing from the scope of the application. Therefore, the appended claims are intended to cover all such variations and modifications that come within the scope of the application. It is evident that those skilled in the art can make various changes and modifications of the application without departing from the spirit and scope thereof. It is therefore intended to embrace all such changes and modifications in a broad aspect of the application as can be allowed under the fair scope thereof and the scope of the following claims.

Claims

1. A steam pipe condensate recovery apparatus, characterized by, include: Water inlet assembly, used to introduce condensate; The water collection component is connected to the water intake component; Used to collect condensate introduced by the water inlet assembly; A heating component is disposed close to the water collection component and is used to heat the condensate collected by the water collection component into steam; The exhaust assembly is connected to the water collection assembly and is used to output the steam heated by the heating assembly.

2. The steam pipe condensate recovery apparatus of claim 1, wherein, The water intake assembly includes an inlet (10), which is connected to a drainage pipe for introducing condensate.

3. The steam pipe condensate recovery apparatus of claim 2, wherein, The water collection assembly includes a condensate storage tank (20), which is connected to the water inlet (10) and is used to collect the condensate introduced by the water inlet (10).

4. The steam pipe condensate recovery apparatus of claim 3, wherein, The exhaust assembly includes an exhaust port (30), which is connected to the condensate storage tank (20) and the exhaust pipe (31) respectively, and is used to return the steam heated by the heating assembly to the steam pipeline through the exhaust pipe (31).

5. The steam pipe condensate recovery apparatus of claim 4, wherein, The heating assembly includes a heater (41) and an electrical control box. The heater (41) is electrically connected to the electrical control box. The heater (41) is located inside the condensate storage tank (20). The electrical control box is located near the outer wall of the condensate storage tank (20). The heater (41) is used to heat the condensate collected in the condensate storage tank (20) into steam.

6. The steam pipe condensate recovery apparatus of claim 5, wherein, The heating assembly also includes a water level gauge (43), which includes a low water level gauge, a medium water level gauge, and a high water level gauge. The low water level gauge, the medium water level gauge, and the high water level gauge are arranged in order from low to high at the low water level position, the medium water level position, and the high water level position in the condensate storage tank (20). The electrical control box is electrically connected to the low water level gauge through a lower water level switch, the electrical control box is electrically connected to the medium water level gauge through a medium water level switch, and the electrical control box is electrically connected to the high water level gauge through an upper water level switch.

7. The steam pipe condensate recovery apparatus of claim 6, wherein, The bottom of the condensate storage tank (20) is provided with a drain pipe (51), which is connected to the condensate storage tank (20). A drain valve (52) is provided on the drain pipe (51), which is electrically connected to the electrical control box.

8. The steam pipe condensate recovery apparatus of claim 6, wherein, The top of the condensate storage tank (20) is provided with a drain pipe (61), which is connected to the condensate storage tank (20). A drain valve (62) is provided on the drain pipe (61), which is electrically connected to the electrical control box.

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