CN206911071U - A kind of NHD solution recovery systems - Google Patents

A kind of NHD solution recovery systems Download PDF

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Publication number
CN206911071U
CN206911071U CN201720851544.8U CN201720851544U CN206911071U CN 206911071 U CN206911071 U CN 206911071U CN 201720851544 U CN201720851544 U CN 201720851544U CN 206911071 U CN206911071 U CN 206911071U
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China
Prior art keywords
nhd
branch pipe
accumulator tank
filter
pipe
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CN201720851544.8U
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Chinese (zh)
Inventor
刘永红
魏强
孙福民
黑月亮
郑智
康凤鸣
王新刚
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Inner Mongolia Yi Gao Coal Chemical Technology Co Ltd
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Inner Mongolia Yi Gao Coal Chemical Technology Co Ltd
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Abstract

The utility model discloses a kind of NHD solution recovery systems, and it includes trench, accumulator tank, recovery pump, filter and NHD storage tanks, the trench connected with accumulator tank is provided with below heat exchanger;The water inlet of recovery pump inside accumulator tank with connecting, the delivery port of recovery pump connects with the first branch pipe of three-way pipe, second branch pipe of three-way pipe is connected with the water inlet of coal-grinding tank, and the 3rd branch pipe of three-way pipe connects with the water inlet of filter, and the delivery port of filter is connected by pipeline with NHD storage tanks.Advantage:The NHD that heat exchanger is revealed is recycled, improves NHD utilization rates, reduces production cost, meanwhile, prevent NHD from entering sewage disposal pipe network, and then ensure the treatment effect of sewage disposal system;In addition, being collected in daily production using the application to producing waste water caused by system as coal-grinding water, water resources consumption is reduced.

Description

A kind of NHD solution recovery systems
Technical field:
NHD solution recovery technologies field is the utility model is related to, relates in particular to a kind of NHD solution recovery systems.
Background technology:
Removing hydrogen sulfide, the sour gas such as carbon dioxide purification process in, on the one hand, need using NHD solution come Sour gas is absorbed, the NHD solution for absorbing sour gas is changed into rich solution;On the other hand, need high temperature NHD lean solutions again (not Absorb sour gas NHD solution) and NHD rich solutions be passed through plate type heat exchanger and exchanged heat;But NHD lean solutions and rich solution are in plate The risk of NHD solution leakage occurs in formula heat exchanger in heat transfer process, causes NHD solution losses to increase, increases production cost; Also, once reveal, NHD solution will be directly entered the sewage disposal pipe network of plant area, still, because NHD solvents belong to Long carbon chain organic matter, existing sewage disposal system can not be handled NHD solvents, and then NHD solution is mixed into sewage network meeting Directly affect the effect of sewage disposal.
Utility model content:
The purpose of this utility model is to provide a kind of NHD solution recovery systems for solving problem described in background technology.
The utility model is implemented by following technical scheme:A kind of NHD solution recovery systems, it includes trench, accumulator tank, returned Pump, filter and NHD storage tanks are received, the trench connected with the accumulator tank is provided with below heat exchanger;The recovery With being connected inside the accumulator tank, the delivery port of the recovery pump connects the water inlet of pump with the first branch pipe of three-way pipe, described Second branch pipe of three-way pipe connects with the water inlet of coal-grinding tank, the 3rd branch pipe of the three-way pipe and the water inlet of the filter Mouth connection, the delivery port of the filter are connected by pipeline with the NHD storage tanks;The first control is equiped with the second branch pipe Valve, the second control valve is equiped with the 3rd branch pipe, is equiped with and leads on second branch pipe and the 3rd branch pipe Drench valve.
Further, the recovery pump is submerged pump.
Further, the trench is obliquely installed from high to low from the heat exchanger to the accumulator tank.
The advantages of the utility model:The NHD that heat exchanger is revealed is recycled, improves NHD utilization rates, is reduced Production cost, meanwhile, prevent NHD from entering sewage disposal pipe network, and then ensure the treatment effect of sewage disposal system;In addition, It is collected in daily production using the application to producing waste water caused by system as coal-grinding water, reduces water resources consumption.
Brief description of the drawings:
Fig. 1 is overall structure diagram of the present utility model.
Trench 1, accumulator tank 2, recovery pump 3, filter 4, NHD storage tanks 5, heat exchanger 6, three-way pipe 7, the first branch pipe 7.1, Two branch pipes 7.2, coal-grinding tank 8, the 3rd branch pipe 7.3, the first control valve 9, the second control valve 10, showering guilding valve 11.
Embodiment:
As shown in figure 1, a kind of NHD solution recovery systems, it includes trench 1, accumulator tank 2, recovery pump 3, the and of filter 4 NHD storage tanks 5, are provided with the trench 1 connected with accumulator tank 2 in the lower section of heat exchanger 6, trench 1 from heat exchanger 6 to accumulator tank 2 by High to be set to low dip, the NHD solution or rainwater revealed by heat exchanger 6 can be directly after trenches 1, and edge lands under gravity Ditch 1 is flowed into accumulator tank 2;Recovery pump 3 is submerged pump, and the water inlet of recovery pump 3 connects with the inside of accumulator tank 2, and recovery pump 3 can incite somebody to action Solution in accumulator tank 2 pumps out;The delivery port of recovery pump 3 connects with the first branch pipe 7.1 of three-way pipe 7, second of three-way pipe 7 Pipe 7.2 connects with the water inlet of coal-grinding tank 8, and the 3rd branch pipe 7.3 of three-way pipe 7 connects with the water inlet of filter 4, filter 4 delivery port is connected by pipeline with NHD storage tanks 5;The first control valve 9 is equiped with the second branch pipe 7.2, in the 3rd branch pipe The second control valve 10 is equiped with 7.3, showering guilding valve 11 is equiped with the second branch pipe 7.2 and the 3rd branch pipe 7.3.
Operation instruction:In daily production, the first control valve 9, the second control valve 10, recovery pump 3 and showering guilding valve 11 are closed, Waste pipe caused by system production is placed in trench 1, and opens the draining valve on waste pipe, production waste water is entered trench 1, And imported through trench 1 in accumulator tank 2, when the production waste water in accumulator tank 2 reaches certain liquid level, the first control valve 9 is opened, and Start recovery pump 3, the production waste water collected in accumulator tank 2 is pumped into coal-grinding tank 8 by recovery pump 3 is used as coal-grinding water;
When solution NHD solution leakage accident occurs in heat exchanger 6, by waste pipe caused by the first control valve 9, system production On draining valve close, open the showering guilding valve 11 on the first branch pipe 7.1, make recovery pump 3 by the production waste water in accumulator tank 2 by the Showering guilding valve 11 on one branch pipe 7.1 is discharged, and detects NHD concentration in the waste water of the showering guilding valve 11 discharge in real time, when detecting NHD Concentration with add heat exchanger 6 NHD solution concentration it is identical when, illustrate no longer to contain waste water in accumulator tank 2, close this and lead leaching Valve 11, and the second control valve 10 is opened, the NHD solution collected in accumulator tank 2 is pumped into filter 4 by recovery pump 3, and filter 4 can The impurity in NHD solution is filtered out, the NHD solution after filtering, which is entered in NHD storage tanks 5, to be reclaimed, to recycle;
When the maintenance of heat exchanger 6 terminates no longer to reveal solution, the second control valve 10 is closed, opens draining valve and the 3rd branch pipe Showering guilding valve 11 on 7.3, now waste water caused by production continue on through trench 1 and enter accumulator tank 2, recovery pump 3 is by accumulator tank 2 Interior waste water is pumped into after the 3rd branch pipe 7.3 with NHD solution and discharged through showering guilding valve 11, and detects the molten of the showering guilding valve 11 discharge in real time NHD concentration in liquid, when can't detect NHD solution, illustrating all production waste water in accumulator tank 2, now closing this and lead leaching Valve 11 opens the first control valve 9.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in Within the scope of shield.

Claims (3)

1. a kind of NHD solution recovery systems, it is characterised in that it includes trench, accumulator tank, recovery pump, filter and NHD storages Groove, the trench connected with the accumulator tank is provided with below heat exchanger;The water inlet of the recovery pump with described time Receive and connected inside groove, the delivery port of the recovery pump connect with the first branch pipe of three-way pipe, the second branch pipe of the three-way pipe and The water inlet connection of coal-grinding tank, the 3rd branch pipe of the three-way pipe connect with the water inlet of the filter, the filter Delivery port connected by pipeline with the NHD storage tanks;The first control valve is equiped with second branch pipe, the described 3rd The second control valve is equiped with branch pipe, showering guilding valve is equiped with second branch pipe and the 3rd branch pipe.
2. a kind of NHD solution recovery systems according to claim 1, it is characterised in that the recovery pump is submerged pump.
3. according to a kind of any described NHD solution recovery systems of claim 1 or 2, it is characterised in that the trench is by described Heat exchanger is obliquely installed from high to low to the accumulator tank.
CN201720851544.8U 2017-07-13 2017-07-13 A kind of NHD solution recovery systems Active CN206911071U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720851544.8U CN206911071U (en) 2017-07-13 2017-07-13 A kind of NHD solution recovery systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720851544.8U CN206911071U (en) 2017-07-13 2017-07-13 A kind of NHD solution recovery systems

Publications (1)

Publication Number Publication Date
CN206911071U true CN206911071U (en) 2018-01-23

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Application Number Title Priority Date Filing Date
CN201720851544.8U Active CN206911071U (en) 2017-07-13 2017-07-13 A kind of NHD solution recovery systems

Country Status (1)

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CN (1) CN206911071U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109675363A (en) * 2018-12-26 2019-04-26 南通正拓气体有限公司 Novel NHD solution purification process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109675363A (en) * 2018-12-26 2019-04-26 南通正拓气体有限公司 Novel NHD solution purification process

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