306 results about "Descaling agent" patented technology

The present invention relates to compositions for deodorizing and cleaning, in particular solid compositions in the form of effervescent tablets which can be reconstituted in water to obtain solutions for cleaning and deodorizing. The compositions comprise one or more Bacillus subtilis strain(s), one or more surfactant(s), one or more fragrance(s), one or more descaling agent(s), and one or more effervescent agent(s). The invention further relates to a kit comprising such tablets, as well as methods for obtaining cleaning and deodorizing tablets and solutions and their use for cleaning and deodorizing.

The invention discloses a gas water heater. The gas water heater comprises a heat exchanger with a water inlet pipe and a water outlet pipe and further comprises a descaling device arranged on the water inlet pipe; the descaling device is provided with a descaling agent cavity communicated with the water inlet pipe; a water way switch is arranged on a communication pipeline between the descaling agent cavity and the water inlet pipe. When the pipeline self-cleaning mode is switched on, a descaling agent in the descaling agent cavity flows into pipelines of the gas water heater along with water flow in the water inlet pipe, and accordingly water scale stuck to the inner walls of the pipelines can be cleaned. Therefore, the heat exchange efficiency of the gas water heater is improved, meanwhile the water quality is improved, and physically beneficial and safe bath water is guaranteed. Besides, the gas water heater can also achieve high temperature sterilization function on the pipelines, the cleanness of the pipelines is further improved, and the water healthy and safe to our body is guaranteed.

The invention discloses an equipment descaling agent and a preparation method thereof. The equipment descaling agent contains the following ingredients in parts by weight: 30-40 parts of aminosulfonic acid, 15-25 parts of ethylenediamine tetra-acetic acid, 15-25 parts of citric acid, 1-5 parts of sodium lauryl sulfate, 0.5-3 parts of sodium polystyrene sulfonate, 5-10 parts of lignin, 3-8 parts of hexamethylene tetramine, 2-8 parts of ethanol, 0.5-1 part of sodium tripolyphosphate and 120-150 parts of water. The preparation method comprises the steps of heating the water to the temperature of 60-70 DEG C, adding all the ingredients into the water except for ethanol and sodium tripolyphosphate, stirring until the ingredients are dissolved, then, lowering the temperature to 50-60 DEG C, adding ethanol and sodium tripolyphosphate, and continuing to stir until a solution is clarified, thereby obtaining the equipment descaling agent. The equipment descaling agent disclosed by the invention is safe and non-toxic, is simple in production process, low in cost, convenient in use and good in descaling effect, and can be widely used.

The invention discloses a glauberite pipeline scale descaling agent and application thereof. The descaling agent comprises the following components in percentage by weight: 10-25% of NaOH, 5-15% of Na2S2O35H2O, and 0.05-0.5% of sodium polyacrylate. The descaling agent provided by the invention can be used for transforming insoluble CaSO4 into soluble Ca(OH)2 and Na2SO4; a proper amount of Na2S2O35H2O serving as a complexing agent is added and complexed with Ca<2+> in Ca(OH)2 to form a more stable complex, a new precipitate is prevented from generating, and a dissolution reaction is promoted to happen; a proper amount of EDTA (ethylene diamine tetraacetic acid) and a proper amount of polyacrylamide are added to realize a more remarkable scale inhibition effect; and acid is not contained in the components of the descaling agent, and no acid is generated in the descaling process, so that the descaling agent has small corrosive influence on a salt manufacturing pipeline and small influence on the mechanical performance of the salt manufacturing pipeline; and after being subjected to simple sediment treatment, a residual solution obtained after filtering can be returned to a bittern pre-treatment system, so that the alkaline solution in the residual solution can be utilized, so that sewage is hardly drained, and the descaling agent is environmentally-friendly.

The invention relates to an offshore oil and gas field gathering and transmission pipe descaling and descaling effect evaluation method, which comprises the following steps of: a, preparing a chemical tank; b, injecting neutral descaling agent in the chemical tank; c, detecting concentration of total calcium ions in water samples at the head end and the tail end of a gathering and transmission pipe by adopting an EDTA (ethylene diamine tetraacetic acid) titration method; d, starting up a chemical injection pump to pump the descaling agent into the head end of the gathering and transmission pipe; e, after the descaling agent is injected, periodically detecting the concentration of total calcium ions in the water samples at the head end and the tail end of the gathering and transmission pipe by continuously adopting the EDTA titration method; f, adjusting the input quantity of the descaling agent till the concentration of the total calcium ions in the water sample at the head end of the gathering and transmission pipe is obviously smaller than the concentration of the total calcium ions in the water sample at the tail end of the gathering and transmission pipe; g, conducting mechanical descaling by adopting a ball passing operation method; and h, when the concentration of the total calcium ions in the water sample at the head end of the gathering and transmission pipe is detected to be equal to the concentration of the total calcium ions in the water sample at the tail end of the gathering and transmission pipe, adjusting the concentration of the neutral descaling agent to a low value.

The invention discloses a toilet descaling agent. The toilet descaling agent is prepared by mixing sodium alkyl benzene sulfonate, oxalic acid, sulfamic acid, sodium silicate, polyethylene glycol and anhydrous sodium sulfate. The toilet descaling agent has the advantages of low production cost and good descaling effect.