CN217686699U - Closed condensate water recycling system - Google Patents

Closed condensate water recycling system Download PDF

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Publication number
CN217686699U
CN217686699U CN202221399702.8U CN202221399702U CN217686699U CN 217686699 U CN217686699 U CN 217686699U CN 202221399702 U CN202221399702 U CN 202221399702U CN 217686699 U CN217686699 U CN 217686699U
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China
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water
pipe
recovery tank
jet pump
hydraulic jet
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CN202221399702.8U
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Chinese (zh)
Inventor
张海清
付涛
董俊
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SIPPR Engineering Group Co Ltd
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SIPPR Engineering Group Co Ltd
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Abstract

The utility model discloses a closed condensate recycling system, which comprises a first condensate recovery tank and a second condensate recovery tank which are communicated with each other at the bottom, wherein the inlet end of the first condensate recovery tank is connected with a condensate pipe of a sheet cut tobacco drier, and the second condensate recovery tank is connected with a low-temperature cooling water pipe with an electric regulating valve; the top steam outlet pipe of the first hydraulic jet pump is connected with the inlet of a throat pipe of the first hydraulic jet pump, the nozzle inlet of the first hydraulic jet pump is connected with the side water outlet pipe of the second hydraulic jet pump provided with a first water pump, and the outlet of a diffusion pipe of the first hydraulic jet pump is connected with the top water inlet pipe of the second hydraulic jet pump; the bottom water outlet pipe of the second hydraulic jet pump is connected with the inlet of a throat pipe of the second hydraulic jet pump, the outlet of a diffusion pipe of the second hydraulic jet pump is connected with the inlet pipe of the second water pump, a self-operated pressure regulating valve is arranged on the outlet pipe of the second water pump, a water return pipe connected with the nozzle inlet of the second hydraulic jet pump is arranged between the self-operated pressure regulating valve and the second water pump, and a throttle valve is arranged on the water return pipe. The utility model discloses can reach energy saving and emission reduction's purpose.

Description

Closed condensate water recycling system
Technical Field
The utility model belongs to the technical field of the comdenstion water recovery technique and specifically relates to a closed comdenstion water recycle system is related to.
Background
In the tobacco industry, a sheet cut tobacco dryer generates a large amount of condensed water in the running process. The temperature of the condensed water is high and is usually kept above 90 ℃ under the influence of the process, but at present, the condensed water of the sheet cut tobacco dryer is collected by adopting an open recovery tank, and then the collected condensed water is directly discharged into a trench, so that a large amount of heat waste and environmental heat pollution are caused. Secondly, the open recovery of the condensed water inevitably produces secondary steam, which is not effectively utilized and can be discharged on site only, resulting in high-quality heat waste and increased steam consumption.
Disclosure of Invention
In order to solve the problem, the utility model provides an energy saving and emission reduction's closed comdenstion water recycle system specifically can take following technical scheme:
the utility model discloses a closed condensate water recycling system, including first condensate water recovery tank, second condensate water recovery tank, first water jet pump and second water jet pump, the entrance point of first condensate water recovery tank links to each other with sheet metal cut-tobacco drier condensate pipe, the entrance point of second condensate water recovery tank links to each other with the low-temperature cooling water pipe, the low-temperature cooling water pipe is provided with the electrical control valve, the bottom of first condensate water recovery tank and second condensate water recovery tank is provided with communicating pipe; a top steam outlet pipe of the first condensed water recovery tank is connected with a throat pipe inlet of the first hydraulic jet pump, a nozzle inlet of the first hydraulic jet pump is connected with a side water outlet pipe of the second condensed water recovery tank, a first water pump is arranged on the side water outlet pipe, and a diffusion pipe outlet of the first hydraulic jet pump is connected with a top water inlet pipe of the second condensed water recovery tank; the bottom water outlet pipe of the second condensed water recovery tank is connected with the throat inlet of the second hydraulic jet pump, the outlet of the diffusion pipe of the second hydraulic jet pump is connected with the inlet pipe of the second water pump, the outlet pipe of the second water pump is provided with a self-operated pressure regulating valve, a water return pipe connected with the nozzle inlet of the second hydraulic jet pump is arranged between the self-operated pressure regulating valve and the second water pump, and the water return pipe is provided with a throttle valve.
Be provided with pressure sensor and level sensor on the second condensate water recovery tank, pressure sensor is used for sending signal control to PLC the opening and shutting of electrical control valve, level sensor is used for sending signal control to PLC the operating condition of second water pump to the automation that realizes flash steam is incorporated into the power networks with the automation of comdenstion water.
The end-to-end connection of low temperature cooling water pipe has the shower, the shower sets up the top at second condensate recovery jar, promotes the even laying of cooling water.
And an outlet pipe of the second water pump is connected with an inlet pipe of the deoxidizing water tank through a condensed water pipe network, so that the purpose of recycling condensed water is achieved.
The utility model provides a closed condensate water recycling system, simple structure, easy transformation implementation, only through increasing the closed condensate water recovery tank that sets up with original open recovery tank in parallel, and set up measures such as steam recovery mechanism between the two, can realize eliminating, utilizing the secondary steam that flashes in original open condensate water recovery tank, reach energy saving and emission reduction's purpose; secondly, set up anti-cavitation pipeline, carry the comdenstion water to the deoxidization water tank and intake recycle, avoided the direct heat waste and the environmental heat pollution that discharge of high temperature comdenstion water caused, and can reduce the deaerator and supply soft water yield and deoxidization steam consumption, finally make the consumption of boiler natural gas reduce.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific working procedures are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, closed comdenstion water recycle system, including first comdenstion water accumulator 1, second comdenstion water accumulator 2, first water jet pump 3 and second water jet pump 4, above-mentioned first comdenstion water accumulator 1 is original equipment, its entrance point links to each other with sheet metal cut-tobacco drier condensate pipe, second comdenstion water accumulator 2 is newly-increased equipment, its entrance point links to each other with 20 ℃ low temperature cooling water pipe, install electrical control valve 5 on the above-mentioned low temperature cooling water pipe, and spray thrower 6 is installed to low temperature cooling water pipe's end, spray thrower 6 is located the top of second comdenstion water accumulator 2, can make the cooling water evenly lay. In order to ensure the same water level, a communicating pipe is arranged at the bottom of the first condensed water recovery tank 1 and the bottom of the second condensed water recovery tank 2. A top steam outlet pipe of the first condensed water recovery tank 1 is connected with a throat pipe inlet of a first hydraulic jet pump 3, a nozzle inlet of the first hydraulic jet pump 3 is connected with a side water outlet pipe of a second condensed water recovery tank 2, a first water pump 7 is installed on the side water outlet pipe, and a diffusion pipe outlet of the first hydraulic jet pump 3 is connected with a top water inlet pipe of the second condensed water recovery tank 2; the bottom outlet pipe of the second condensate water recovery tank 2 is connected with the throat inlet of the second hydraulic jet pump 4, the outlet of the diffusion pipe of the second hydraulic jet pump 4 is connected with the inlet pipe of the second water pump 8, the outlet pipe of the second water pump 8 is provided with a self-operated pressure regulating valve 9, and the outlet pipe is connected with the inlet pipe of the deoxygenation water tank through a condensate water pipe network. A water return pipe connected with the nozzle inlet of the second hydraulic jet pump 4 is arranged between the self-operated pressure regulating valve 9 and the second water pump 8, and a throttle valve 10 is arranged on the water return pipe. Install pressure sensor and level sensor on above-mentioned second condensate water recovery tank 2, pressure sensor is used for opening and shutting to PLC signal control electrical control valve 5, and level sensor is used for sending signal control second water pump 8's operating condition to PLC to the automation of flash steam in the realization system is incorporated into the power networks with the automation of comdenstion water.
In operation, condensed water from the thin plate cut tobacco dryer is sent into the first condensed water recovery tank 1, the condensed water can generate flash steam on the upper part of the first condensed water recovery tank 1 due to the volume mutation, the flash steam is pumped into the second condensed water recovery tank 2 through the first hydraulic jet pump 3 arranged on the upper part of the first condensed water recovery tank 1, and in the process, the flash steam is forcibly mixed into the condensed water. The power water flow required by the first hydraulic jet pump 3 is conveyed by the condensed water in the second condensed water recovery tank 2 through the first water pump 7.
For keeping the pressure in first condensate water recovery tank 1 and the second condensate water recovery tank 2 within the setting value, guarantee the normal operating of sheet metal cut-tobacco drier, when the flash steam is too much, the pressure in first condensate water recovery tank 1 and the second condensate water recovery tank 2 can rise, electric control valve 5 opens this moment and introduces the heat that 20 ℃'s comdenstion water absorbed flash steam, make flash steam condense fast to reduce the pressure in first condensate water recovery tank 1 and the second condensate water recovery tank 2.
When the condensed water in the second condensed water recovery tank 2 exceeds the set water level value, a cavitation-proof conveying pipeline composed of a second hydraulic jet pump 4, a second water pump 8, a self-operated pressure regulating valve 9 and a throttle valve 10 is started, the condensed water is conveyed to a condensed water pipe network, and is conveyed to an inlet pipe of a deoxidizing water tank for recycling through the condensed water pipe network. Specifically, the condensed water in the second condensed water recovery tank 2 is boosted by the second hydraulic jet pump 4 and then sent to the second water pump 8 to prevent cavitation at the inlet of the second water pump 8 due to too low suction pressure, a part of the condensed water sent out by the second water pump 8 passes through the throttle valve 10 and then serves as power to maintain the normal operation of the second hydraulic jet pump 4, and the other part of the condensed water exceeds the pressure setting requirement of the self-operated pressure regulating valve 9 and then enters the condensed water pipe network and is sent to the deaerating water tank for recycling.
It should be noted that in the description of the present invention, terms of orientation or positional relationship such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention.

Claims (4)

1. The utility model provides a closed comdenstion water recycle system which characterized in that: the device comprises a first condensate water recovery tank, a second condensate water recovery tank, a first hydraulic jet pump and a second hydraulic jet pump, wherein the inlet end of the first condensate water recovery tank is connected with a condensate pipe of a sheet tobacco dryer, the inlet end of the second condensate water recovery tank is connected with a low-temperature cooling water pipe, an electric regulating valve is arranged on the low-temperature cooling water pipe, and communicating pipes are arranged at the bottoms of the first condensate water recovery tank and the second condensate water recovery tank; a top steam outlet pipe of the first condensed water recovery tank is connected with a throat pipe inlet of the first hydraulic jet pump, a nozzle inlet of the first hydraulic jet pump is connected with a side water outlet pipe of the second condensed water recovery tank, a first water pump is arranged on the side water outlet pipe, and a diffusion pipe outlet of the first hydraulic jet pump is connected with a top water inlet pipe of the second condensed water recovery tank; the bottom water outlet pipe of the second condensate water recovery tank is connected with the throat pipe inlet of the second hydraulic jet pump, the outlet of the diffusion pipe of the second hydraulic jet pump is connected with the inlet pipe of the second water pump, the outlet pipe of the second water pump is provided with a self-operated pressure regulating valve, a water return pipe connected with the nozzle inlet of the second hydraulic jet pump is arranged between the self-operated pressure regulating valve and the second water pump, and the water return pipe is provided with a throttle valve.
2. The closed condensate water recycling system according to claim 1, characterized in that: be provided with pressure sensor and level sensor on the second condensate water recovery tank, pressure sensor is used for sending signal control to PLC opening and shutting of electrical control valve, level sensor is used for sending signal control to PLC the operating condition of second water pump.
3. The closed condensate water recycling system according to claim 1, characterized in that: the tail end of the low-temperature cooling water pipe is connected with a sprayer, and the sprayer is arranged at the top of the second condensed water recovery tank.
4. The closed condensate water recycling system according to claim 1, characterized in that: and an outlet pipe of the second water pump is connected with an inlet pipe of the deoxidizing water tank through a condensed water pipe network.
CN202221399702.8U 2022-06-07 2022-06-07 Closed condensate water recycling system Active CN217686699U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221399702.8U CN217686699U (en) 2022-06-07 2022-06-07 Closed condensate water recycling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221399702.8U CN217686699U (en) 2022-06-07 2022-06-07 Closed condensate water recycling system

Publications (1)

Publication Number Publication Date
CN217686699U true CN217686699U (en) 2022-10-28

Family

ID=83707122

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221399702.8U Active CN217686699U (en) 2022-06-07 2022-06-07 Closed condensate water recycling system

Country Status (1)

Country Link
CN (1) CN217686699U (en)

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