CN209460224U - A kind of antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating device - Google Patents
A kind of antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating device Download PDFInfo
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- CN209460224U CN209460224U CN201822176835.9U CN201822176835U CN209460224U CN 209460224 U CN209460224 U CN 209460224U CN 201822176835 U CN201822176835 U CN 201822176835U CN 209460224 U CN209460224 U CN 209460224U
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- cooling water
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Abstract
The utility model discloses a kind of antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating devices.Including calcium deposit liquid storage tank, carbonate deposit liquid storage tank, circulating cooling water storage tank, dosing storage tank, reaction kettle, online PH meter, flow controller and pump.The device can obtain the Screening PH of antisludging agent with the scale-inhibiting properties of the hardness tolerant of on-line testing antisludging agent, fastness to alkali and dosing, and intuitively obtain the fastness to alkali performance of the hardness tolerant of antisludging agent.
Description
Technical field
The utility model belongs to antisludging agent analysis testing field, and in particular to antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating is fixed
Device.
Background technique
In recent years, due to the exhaustive exploitation of the quickening of process of industrialization and water resource, the shortage and water quality of water resource are caused
Worsening, the water hardness is higher and higher.In the great industrial water conditioning system of water consumption, underground water is largely used to industry
The supplement water of recirculated cooling water.
Yellow River basin groundwater quality belongs to high rigidity, high alkalinity water quality, as circulating water system in use, due to superelevation
The corrosivity of hardness, superhigh-alkalinity, water is weaker, and fouling tendency is stronger.There are also the representative high rigidity in North China, China is high
Basicity underground water is more serious as industrial circulating cooling water, fouling and to the corrosion of equipment.According to Zhongyuan Oil Field petrochemical industry
Willow village underground water where head factory, natural gas production and marketing head factory gas treatment plant is that factory keeps the skin wet analysis, belongs to corroding at normal temperature
Property, belong to fouling type at high temperature.
Due to underground water ultrahigh hardness, superhigh-alkalinity, the corrosivity of water is weaker, and fouling tendency is stronger, causes on heat exchanger wall
Fouling is serious, reduces the heat transfer efficiency of heat exchanger, hinders the flowing of heat transferring medium, and generates underdeposit corrosion, while increasing and setting
Standby cleaning frequency.Therefore, effectively inhibiting fouling is the key that cooling water system is maintained to operate normally.
Recirculating cooling water system generallys use addition antisludging agent both at home and abroad at present, to delay the generation of inorganic scale.Commonly
Antisludging agent has: polyacrylic, phosphonic acid, phosphine carboxylic acid class and organic phosphoric acid lipid etc..The inhibitor mechanism of antisludging agent is more complicated,
With precipitation process dynamics, the numerous studies of scaling prediction model and various mitigation and antiscaling technologies, make research and the knot of scaling mechanisms
The control of dirt has very big progress.Mainly have: chelation, peptizaiton, distortion of lattice effect, regeneration --- from release film
Hypothesis, Effect of Electric Double Layer mechanism etc..
Crystal growth theories think that carbonate has to reach certain supersaturation and could be precipitated precipitating, solution when precipitation
PH value is exactly critical pH, i.e. pHc.When the actual measurement pH value of water is more than pHc then fouling；Less than pHc then non flouling behaviour.Using continuous
Increase hardness or basicity and arrive recirculating cooling water system, measurement water quality changes with hardness and basicity, and after measuring and adding antisludging agent
PHc evaluates critical pH of the scale inhibition under different hardness or basicity, to utilize the performance of pHc assessment of scale inhibitor.Antisludging agent adds
More calcium and magnesium ions are stablized in water after entering, increase the solubility of microsolubility calcium, magnesium salts, reduces it and generates satiety
With the possibility of solution, pHc is improved.Critical pH method assessment of scale inhibitor performance has larger improvement compared with static scale inhibition method, Bubbling method,
It is accurate, quickly time saving and energy saving to have the characteristics that.
Hardness tolerant, the fastness to alkali of antisludging agent have a major impact antisludging agent scale-inhibiting properties, study different hardness and different alkali
The feature for spending lower antisludging agent helps to play the optimum performance face of antisludging agent.To shortage of water resources, this is widely used in underground water
One stern reality combines new there is an urgent need to the hardness tolerant and fastness to alkali situation of the quick existing antisludging agent of method screening
The express laboratory screening of catalyst hardness tolerant fastness to alkali is developed, more preferably to grasp the applicable water quality range of antisludging agent and medicament
Dosage helps to select correct suitable water treatment agent for different condition of water quality, is conducive in industrial production in time more
Dressing agent increases sample volume, keeps the kilter of recirculated cooling water, maintains the continuous service of equipment.
Summary of the invention
The purpose of the utility model is to provide a kind of devices of rapid screening antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating, together
When can also be used for monitoring industrial circulating water hardness and basicity.
The utility model is that calcium stock solution or carbonate stock solution are added in recirculated cooling water with certain flow rate, to change
The hardness or basicity of recirculated cooling water, are then added a certain amount of antisludging agent in a kettle.With the variation of hardness and basicity,
The pH value of online pH meter timing sampling measurement recirculated cooling water, and data are transmitted to computer drawing pH-Ca2+Or pH-HCO3 -'s
Change curve, and critical pH is determined by the variation of curveC, so that it is determined that antisludging agent hardness tolerant or fastness to alkali performance.
The technical solution of the utility model is as follows:
A kind of antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating device, including calcium lays in liquid storage tank, carbonate lays in liquid storage tank,
Circulating cooling water storage tank, dosing storage tank, reaction kettle, online PH are counted, and pass through piping connection between each equipment；Recirculated cooling water storage
It is sequentially connected in order between tank, reaction kettle and online PH meter, setting pump is formed between online PH meter and circulating cooling water storage tank
Circulation loop.
Reaction kettle is jacketed kettle reactor, and control reaction temperature is 60-80 DEG C.Water in circulating cooling water storage tank is by pumping
Circulation loop simulates dynamic industrial circulating water.It is antisludging agent in dosing storage tank, dosing storage tank is connect with reaction kettle is added scale inhibition
Agent.
Liquid in calcium deposit liquid storage tank and carbonate deposit liquid storage tank continuously squeezes into circulating cooling water storage tank by pump, passes through
Flowmeter controls flow.
With continuous acquisition and circulating cooling water ph value after dosing can be stored in line PH meter, and be connected to computer drawing pH value with
The change curve of hardness and basicity.
The utility model has the advantages that
1. the device can be continuously available antisludging agent with hardness and alkaline-resisting variation with the scale-inhibiting properties of on-line testing antisludging agent
PH numerical value, and intuitively obtain the ultimate hardness and basicity value of antisludging agent.
2. the device is easy to operate, high degree of automation.
3. hardness and basicity that the device can be also used for on-line monitoring industrial circulating water.
Detailed description of the invention
Fig. 1 is the device general flow chart of the utility model.
Specific embodiment
Illustrate the embodiments of the present invention with reference to the accompanying drawing.The following example is merely to illustrate the utility model,
But it is not used to limit the scope of the utility model.
A kind of antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating device, including calcium lays in liquid storage tank, carbonate lays in liquid storage tank,
Circulating cooling water storage tank, dosing storage tank, reaction kettle, online PH are counted, and pass through piping connection between each equipment；Recirculated cooling water storage
It is sequentially connected in order between tank, reaction kettle and online PH meter, setting pump is formed between online PH meter and circulating cooling water storage tank
Circulation loop.
Reaction kettle is jacketed kettle reactor, and control reaction temperature is 60-80 DEG C.Water in circulating cooling water storage tank is by pumping
Circulation loop simulates dynamic industrial circulating water.It is antisludging agent in dosing storage tank, dosing storage tank is connect with reaction kettle is added scale inhibition
Agent.Liquid in calcium deposit liquid storage tank and carbonate deposit liquid storage tank continuously squeezes into circulating cooling water storage tank by pump, passes through flow
Meter control flow.
With continuous acquisition and circulating cooling water ph value after dosing can be stored in line PH meter, and be connected to computer drawing pH value with
The change curve of hardness and basicity.
Embodiment 1
It is passed through vapor in 1L reacting kettle jacketing, maintains the temperature of dynamic circulation cooling water system at 80 DEG C, and pass through
The antisludging agent of 5mg/L is added in the antisludging agent storage tank on reaction kettle top.It opens calcium and lays in liquid storage tank to the control of circulating cooling water storage tank
It is 0.8mol/L calcium stock solution that 10ml concentration, which is added, in valve, makes to maintain Ca in recirculated cooling water2+: 8 mmol/L are then shut off calcium storage
Standby liquid storage tank control valve.Then opening concentration is that 0.6mol/L carbonate lays in the flow control of liquid storage tank to circulating cooling water storage tank
Valve processed is successively squeezed into the circulating cooling water storage tank of 1L with the flow velocity of 10mL/6h, changes HCO3 -It is cold that concentration adjusts circulation
But the basicity of water.With the variation of basicity, the pH value of the online every 6 hours sampling and measuring recirculated cooling waters of pH meter, and data are passed
Give computer drawing pH-HCO3 -Change curve, and critical pH is determined by the variation of curveCIt is 8.6, so that it is determined that scale inhibition
Agent fastness to alkali performance.
Embodiment 2
It is passed through vapor in 1L reacting kettle jacketing, maintains the temperature of dynamic circulation cooling water system at 60 DEG C, and pass through
The antisludging agent of 3mg/L is added in the antisludging agent storage tank on reaction kettle top.It opens carbonate and lays in liquid storage tank to circulating cooling water storage tank
It is 0.6mol/L carbonate stock solution that 10ml concentration, which is added, in control valve, makes to maintain HCO in recirculated cooling water3 -: 6 mmol/L, then
Close carbonate stock solution reservoir control valve.Then the flow control valve that calcium lays in liquid storage tank to circulating cooling water storage tank is opened,
Successively 0.8mol/L calcium stock solution is squeezed into the circulating cooling water storage tank of 1L with the flow velocity of 10mL/6h, changes Ca2+Concentration
Adjust the hardness of recirculated cooling water.With the variation of hardness, the pH value of the online every 6 hours sampling and measuring recirculated cooling waters of pH meter,
And data are transmitted to computer drawing pH- Ca2+Change curve, and critical pH is determined by the variation of curveCIt is 8.9, from
And determine antisludging agent hardness tolerant performance.
Claims (6)
1. a kind of antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating device, which is characterized in that including calcium deposit liquid storage tank, carbonate storage
Standby liquid storage tank, circulating cooling water storage tank, dosing storage tank, reaction kettle, online PH are counted, and pass through piping connection between each equipment；It follows
Ring cools down to be sequentially connected in order between water storage tank, reaction kettle and online PH meter, between online PH meter and circulating cooling water storage tank
Setting pump forms circulation loop.
2. antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating device according to claim 1, which is characterized in that reaction kettle is collet
Tank reactor, control reaction temperature are 60-80 DEG C.
3. antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating device according to claim 1, which is characterized in that recirculated cooling water storage
Water in tank is by the dynamic industrial circulating water of pump circulation loop analog.
4. antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating device according to claim 1, which is characterized in that calcium lays in liquid storage tank
Circulating cooling water storage tank is continuously squeezed by pump with the liquid in carbonate deposit liquid storage tank, flow is controlled by flowmeter.
5. antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating device according to claim 1, which is characterized in that be in dosing storage tank
Antisludging agent, dosing storage tank is connect with reaction kettle is added antisludging agent.
6. antisludging agent hardness tolerant fastness to alkali performance measuring and evaluating device according to claim 1, which is characterized in that online PH meter is continuous
It acquires and stores circulating cooling water ph value after dosing, and be connected to computer drawing pH value with the change curve of hardness and basicity.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406738A (en) * | 2018-12-24 | 2019-03-01 | 南京科技职业学院 | A kind of antisludging agent hardness tolerant fastness to alkali on-line evaluation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406738A (en) * | 2018-12-24 | 2019-03-01 | 南京科技职业学院 | A kind of antisludging agent hardness tolerant fastness to alkali on-line evaluation method |
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