128 results about "Injections water" patented technology

Systems and methods of separating multiphase flows in a flowline of a downhole fluid sampling and analysis tool, measuring target ions in the water phase, and separating between formation water and injection water are described. The system to separate the multiphase flows includes a three-dimensional barrier permeable to water and repelling oil and / or drilling mud filtrate into at least one bypass channel within the flowline of the downhole fluid sampling and analysis tool. For instance, the system to measure the targeted ions includes the system to separate the multiphase flows and an optical sensor, wherein the three-dimensional barrier has an aperture inside the three-dimensional barrier to let a light from an optical sensor go through perpendicular to the flowline.

The embodiment of the invention provides a safety injection system and method, and relates to the field of reactor safety systems. The problem that the water injection flow of a safety injection system is not matched with the flow needed in the reactor water loss accident stage is solved. The safety injection device comprises a pressure-bearing container and a damping device, wherein a safety injection outlet pipe is arranged at the bottom of the pressure-bearing container; the damping device is arranged in the pressure-bearing container, the damping device is provided with a water inlet and a water outlet, and safety injection water in the pressure-bearing container flows through the damping device from the water inlet and then flows to the safety injection outlet pipe from the water outlet. The drainage flow of the safety injection water in the pressure-bearing container is gradually reduced along with the process of the water loss accident, and compared with a pressure-bearing container without the damping, the flow in the initial stage is lower, so that the water quantity of the safety injection bypass can be reduced; the flow in the middle stage can quickly realize refilling of water in the lower cavity of the reactor core and resubmerging of the reactor core; the flow submerged in the reactor core is maintained to be lower in the later period of the accident, the safety injection time is fully prolonged, and safety injection water is effectively utilized.

The present invention discloses a method and system for preparing non-distilled normal temperature water for injection, belonging to the technical field of pharmaceutical water. The method includes obtaining a first standard of water for injection based on the qualified standard of water for injection, obtaining a first target water for injection according to the first standard of water for injection, obtaining a second standard of water for injection according to the first target water for injection, obtaining a third standard of water for injection according to the second standard of water for injection, obtaining a third standard of water for injection according to the second standard of water for injection, and finally obtaining a second target water for injection according to the third standard of water for injection. In this way, the water quality of water for injection is improved. The system for preparing non-distilled normal temperature water for injection includes a purified water unit, a water supply pump, a disinfection heat exchange unit, an ultraviolet unit, a CEDI unit and a water storage unit. Through the setting of the inventive method and system, the problem that the existing non-distilled normal temperature water for injection must use an ultrafiltration membrane to filter endotoxin after entering the storage and distribution system is solved.

The invention discloses a bridge type working barrel for synchronous injection and production of a horizontal well in the same well, and relates to the technical field of oilfield development. According to the bridge type working barrel for synchronous injection and production in the same well of the horizontal well, by arranging the fixed barrel body, the bridge type working barrel body, the injection water bridge type channel, the produced liquid flowing channel, the telescopic sleeve and the sealing barrel body, the independent produced liquid flowing channel and the injection water bridge type channel are designed; the purpose that injected water and produced liquid are injected and produced through respective independent flow channels is achieved, the problem that oil production injected water and produced liquid flow channels at the two end sections of water injection in the middle section of the horizontal well interfere with each other can be effectively solved, and the applicability of the horizontal well same-well synchronous injection and production process pipe column is further widened. The bridge type working barrel body has the advantages of being simple in design, easy and convenient to operate, good in sealing performance and the like, the working environment of a low-permeability oil field horizontal well development site is better met, and meanwhile production cost is reduced.

The invention provides an urapidil hydrochloride injection and a preparation method thereof, and particularly relates to the field of medicines. The urapidil hydrochloride composition comprises the following components in w / v: 0.4-0.6% of urapidil hydrochloride; 9-11% of a stabilizer; 0.03 to 0.05 percent of anhydrous disodium hydrogen phosphate; 0.1-0.3% of sodium dihydrogen phosphate monohydrate, and the balance of water for injection, which is supplemented to 100%. The defects in the prior art are overcome, the cost is saved, meanwhile, the impurity level of the urapidil hydrochloride injection after sterilization is reduced, the liquid medicine temperature is reduced in the liquid preparation and filling processes, meanwhile, the inert gas is filled, the influence of metal ions in a production assembly is greatly reduced, and the production efficiency is improved. The levels of impurities C and D in the finished product after the urapidil hydrochloride injection is sterilized are reduced; the prepared urapidil hydrochloride injection is low in impurity level and high in stability, the quality of the urapidil hydrochloride injection meets the requirements of current laws and regulations, and the urapidil hydrochloride injection is superior to a reference preparation.

The present invention provides a non-distillation injection water preparation system, the non-distillation injection water preparation system comprises a pure water production system and an injection water production system connected to each other, the pure water production system comprises a purification module, a first treatment module and a first storage module, untreated raw material water in an external feed source is purified by the purification module and the first treatment module and then enters the first storage module, the injection water production system comprises a second treatment module, a filtering module and a second storage module, and purified water purified by the pure water production system flows out of the first storage module; and the water enters the second storage module through the second processing module and the filtering module. According to the non-distillation injection water preparation system, purified water and injection water can be produced at the same time through a short non-distillation process, the process preparation standard of pharmacopeia is met, the water using process at the rear end of production can be effectively simplified, and the investment cost and the operation cost of the whole system are reduced.

The invention discloses a water injection well diagnosis and early warning method based on node analysis and a multi-information fusion technology. The method comprises the following steps that node analysis is conducted on a water injection system of an oil field; performing multi-information fusion on the basic data of the water injection well and the node analysis result, and diagnosing the operation condition of the water injection well in real time to obtain a condition diagnosis result; and the working condition diagnosis result is pushed and processed in time, and the processing progress is detected or the processing result is fed back. According to the water injection well diagnosis and early warning method based on the node analysis and the multi-information fusion technology, the node analysis technology and the multi-information fusion technology are utilized, working condition judgment is refined, many factors are considered, historical working conditions are tracked in time, meanwhile, real-time judgment, early warning in advance and timely pushing processing can be achieved, and continuous tracking is achieved; water injection well working condition real-time diagnosis early warning is achieved, and the water injection well management level is further improved.

The utility model discloses a zebra fish injection device which comprises a culture dish box body and a unit plate, a support is arranged at the bottom of the unit plate and used for lifting the unit plate, a groove is formed in the unit plate, a drainage hole is formed in the side face of the groove, and the drainage hole and the bottom of the groove are arranged in a spaced mode. The utility model aims to solve the technical problems in the prior art, and provides the zebra fish injection device, which can transfer zebra fish to the injection vessel at one time and maintain the zebra fish in a proper injection water volume, thereby simplifying the complicated operation process.

The embodiment of the invention discloses a low-permeability oil reservoir augmented injection method and device, a terminal and a storage medium, and belongs to the field of oil reservoir development. The method comprises the steps that for any well group of the low-permeability reservoir, the water well augmented injection amount of the well group is determined based on the accumulated production volume and the accumulated injection water volume of the well group; determining a preset crack length of the oil layer based on the minimum oil-water well distance of the well group; based on the water well injection increasing amount and the preset crack length, the stage water injection amount and the pump stopping duration of the high-pressure pump truck are determined; based on the stage water injection rate and the pump stopping duration, the high-pressure pump truck is controlled to inject water into the oil layer multiple times through the water injection well under the pressure higher than the fracture pressure till the accumulated water injection rate is equal to the water well injection increasing rate. According to the technical scheme, the high-pressure pump truck can be controlled to inject water into the oil layer at the pressure higher than the fracture pressure, cracks can be formed in the oil layer while oil layer energy is supplemented, the oil layer without the effect of conventional water injection can be obviously improved, and the problem that water cannot be injected into the low-permeability oil reservoir is solved.

This application relates to the field of pharmaceutical technology, specifically to a water-for-injection generating device and a purified water distribution system. The main pipeline has an inlet end connected to the water supply pipeline of the purified water distribution system, and an outlet end connected to the return pipeline of the purified water distribution system. The branch pipeline assembly includes branch pipelines, and terminal ultrafiltration membrane modules and water-for-injection production valves, both installed on the branch pipelines. The terminal ultrafiltration membrane modules are located upstream of the water-for-injection production valve. The inlet and outlet ends of the branch pipelines are both connected to the main pipeline. The inlet end of the branch pipeline is located upstream of a first flow regulating valve, and the outlet end of the branch pipeline is located downstream of the first flow regulating valve. The purpose of this application is to address at least one technical problem mentioned in the background art by providing a water-for-injection generating device and a purified water distribution system.

The utility model provides a novel safety injection tank. The novel safety injection tank comprises a safety injection tank nitrogen tank and a safety injection tank water tank which are independently arranged, the safety injection tank nitrogen tank is connected with one end of the safety injection tank water tank through a gas-water tank connecting pipeline; and the other end of the safety injection tank water tank is connected with a safety injection tank injection pipe and is connected with a reactor coolant system. According to the design scheme of the novel safety injection tank, compressed nitrogen used for driving and safety injection water serving as a water source are separated and stored in the gas phase and the water tank respectively, then the two tank bodies are connected through the pipeline, and the valve is arranged on the pipeline to control the communication / isolation state of the two tank bodies. When the nuclear power plant is in a normal operation state, the isolating valve is in a closed state to isolate a gas phase from a water tank; when LOCA accidents and the like occur and the safety injection tank needs to be put into operation, the valve can be opened through signals, the water tank is communicated with the gas tank, and therefore effective injection of the safety injection tank is achieved.

The utility model relates to the technical field of drainage gas recovery reinjection water system equipment, and discloses a novel simple reinjection tank which comprises a supporting plate, a tank body is fixedly connected to the top of the bottom supporting plate, a water outlet pipe and a water inlet pipe are fixedly connected to the outer wall of the tank body, and a first-stage filtering cavity and a second-stage filtering cavity are formed in the tank body. A top cover is arranged at the top of the tank body, a filter cotton placing cavity is formed in the tank body, the primary filter cavity is communicated with the secondary filter cavity, a filter plate is slidably connected to the interior of the tank body, and the side wall of the filter plate is slidably connected to the inner wall of the filter cotton placing cavity. According to the utility model, by designing and optimizing the appearance of the tank body and the internal filtering structure, the low production material cost and the simple and convenient manufacturing process are ensured, the filtering performance of the reinjection water system is improved, the degree of filtered water quality is improved, and the maintenance period of the reinjection water system is prolonged; and the service life of the equipment is prolonged by innovating the appearance structure process.

The invention discloses a method and a system for preparing normal-temperature water for injection, and relates to the technical field of preparation of water for injection. According to the method and system for preparing the normal-temperature injection water, purified water serves as an initial water source and enters a purified water tank, after water in a purified water storage tank is pumped out through a circulating pump, pathogenic microorganisms are killed through irradiation of an ultraviolet lamp, suspended impurities of the purified water are intercepted based on a 0.45-micron filter, heat sources in the water are filtered through an ultrafiltration membrane after the water is subjected to continuous electrodeionization, and the normal-temperature injection water is obtained. After residual impurities are removed, the temperature is adjusted based on the heat exchanger, and produced water enters an injection water storage tank. Through the combined design of cooperative sterilization of the terminal ultrafiltration membrane and the ultraviolet device, the removal effect on colloidal particles and pathogenic microorganisms is enhanced, the load on the terminal ultrafiltration membrane is reduced, frequent disinfection and replacement of the membrane are not needed, the equipment maintenance frequency and the consumable cost are reduced, and meanwhile, the shutdown risk caused by membrane pollution is avoided.

The utility model discloses a gas extraction three-blocking two-injection water-absorbing expansion hole sealing device which comprises a first hole packer, a second hole packer, a third hole packer, a gas extraction pipe, a first water injection pipe and a second water injection pipe. The first hole packer, the second hole packer and the third hole packer plug a drill hole through the second water injection pipe, so that two sealed spaces are formed, then the first water injection pipe injects water into the two sealed spaces, and finally the drill hole is sealed through the water absorption expansion effect of the water absorption expansion material. A three-plugging two-injection combined water absorption expansion material mode is adopted, extra hole sealing materials such as cement are not needed in the whole process, and therefore the required hole sealing effect can be achieved by directly conducting hole sealing operation under a well. And in addition, even if part of the sealing holes lose efficacy when the subsequent drill holes are pressed and deformed, the water pressure change is observed through the pressure gauge, the water can be supplemented and strengthened in a water supplementing mode, and finally the continuity of the hole sealing effect can be kept.

The invention discloses an ioversol injection and a preparation method thereof, and the preparation method comprises the following steps: dissolving ioversol in first water for injection to obtain a first solution; adding a chelating agent into the first solution for dissolving to obtain a second solution; adding a stabilizer into the second solution for dissolving to obtain a third solution; and adding second injection water into the third solution and / or adjusting the pH value to obtain the liquid medicine. According to the method provided by the invention, the total amount of impurities is effectively reduced, and the stability and quality of the injection are improved.

The utility model belongs to the technical field of small bucket gas injection water spray leak detection, disclose a kind of small bucket gas injection water spray leak detection device, including small bucket placement fixing frame;Small bucket placement fixing frame's motor drive screw rod drives moving plate to move, cooperate electric telescopic rod to push small bucket and push to the testing abutment plate and fixed, without artificial handling alignment;Water pump and air pump are automatically completed by connecting pipeline water injection and gas injection operation, compared with traditional artificial water injection observation, single bucket detection time is greatly shortened, can adapt to the detection needs of batch production, solve the problem of low artificial efficiency;Gas injection tank body is injected into gas in small bucket by center test through-hole, to form positive pressure in bucket, water storage tank is sprayed to barrel body surface through the same channel, and small leakage point will produce bubble due to gas pressure, facilitate fast identification;The rubber pad of testing abutment plate and small bucket abutment plate ensures sealing, avoids gas and water leakage interference detection.

The invention discloses a preparation method of a bumetanib injection, and belongs to the technical field of medicines. The method comprises the following steps: (1) preparing materials, namely respectively weighing bumetanib, xylitol, sodium dihydrogen phosphate dihydrate, disodium hydrogen phosphate dihydrate and benzoic anhydride modified polyoxyethylated castor oil according to prescription amounts for later use; (2) preparing a solution: weighing water for injection, adding xylitol, sodium dihydrogen phosphate dihydrate and disodium hydrogen phosphate dihydrate according to the prescription dosage in a stirring state, stirring and dissolving, then adding benzoic anhydride modified polyoxyethylated castor oil and bumetanib according to the prescription dosage, and stirring until the materials are completely dissolved; and (3) fixing the volume: supplementing the water for injection to the total amount of the prescription, and uniformly stirring and mixing. According to the bumetanib injection disclosed by the invention, the polyoxyethylated castor oil is modified by benzoic anhydride, so that the dissolution rate of bumetanib is effectively improved, and meanwhile, the high-temperature and illumination stability of the bumetanib injection is remarkably enhanced.

The utility model discloses a vertical hot-pressing distilled water machine which comprises an evaporator, a concentrated water preheater, a condensed water preheater, an injection water buffer tank, an injection water pump, an injection water preheater, a non-condensable gas preheater, a steam preheater and a magnetic suspension compressor, the position, corresponding to the steam-water separation chamber, of the evaporator is connected with the position, corresponding to the evaporation chamber, of the evaporator through a magnetic suspension compressor, and a condensate water discharging pipeline is further arranged on the magnetic suspension compressor. The magnetic suspension compressor is adopted, so that the occupied area of equipment is greatly reduced, the efficiency can be improved, and the loss is reduced.

The application discloses a water pressure fracturing and proppant migration test method under the filtration condition of injection holes, and the test device comprises an injection assembly, a fracture assembly and a fixing assembly, the injection assembly is used for injecting liquid with proppants into the fracture assembly, a filtration fracture for realizing filtration before fracturing fluid is injected into the fracture assembly is arranged in the injection assembly, the filtration fracture realizes the change of the opening of the filtration fracture through filtration structures arranged on both sides of the filtration fracture, the fracture assembly is used for simulating the reaction of rock mass with fractures after liquid injection, and the fixing assembly is used for realizing the support and fixation of the fracture assembly and the application of load; the method further comprises the following steps: S1, test preparation; S2, load application; S3, fracturing; S4, completion of fracturing; and S5, repeated test. Under the existing proppant fracture seepage simulation test, liquid injection simulation with filtration can be realized, so that the hydraulic fracturing under the condition that the fractures of the injection water fracturing well or hole exist filtration can be researched, and a basis for actual production is provided.

The application provides a preparation method and application of a sterile inhalation suspension containing a PDE-4 or PDE-3 / 4 inhibitor. The preparation method comprises dispersing the PDE-4 or PDE-3 / 4 inhibitor in injection water containing an excipient, high-pressure wet heat sterilization to obtain a PDE-4 or PDE-3 / 4 inhibitor dispersion; further comprising dissolving a long-acting beta2-receptor agonist and / or a long-acting muscarinic receptor antagonist, sterile filtration to obtain a mixed solution; mixing the PDE-4 or PDE-3 / 4 inhibitor dispersion with the mixed solution, dispersing and sterilely filling. The pharmaceutical preparation prepared by the application is a sterile inhalation suspension, the sterile inhalation suspension containing the PDE-4 or PDE-3 / 4 inhibitor has high bioavailability, good patient medication compliance and good preparation stability.

The utility model belongs to the technical field of transformer substations, and particularly discloses a high-voltage prefabricated transformer substation which comprises a device body, water tanks are fixedly connected to the two sides of the device body, limiting frames are fixedly connected to the upper surfaces of the water tanks, and limiting grooves are formed in the upper surfaces of the limiting frames. A first rotating block is slidably connected to the interior of the limiting groove, a fixing block is rotatably connected to the top end of the first rotating block, a second rotating block is rotatably connected to the position, close to the first rotating block, of the lower surface of the fixing block, and the outer surface of the second rotating block makes contact with the inner wall of the limiting frame; the motor drives the gear to be in meshing transmission with the annular rack to drive the fixing block to move along the annular track of the limiting frame, and the fixing block is matched with sliding limiting of the limiting groove on the first rotating block and clamping limiting of the first rotating block and the second rotating block on the limiting frame, so that the stability of the moving process of the fixing block is ensured; the spray head can annularly and automatically spray water mist around the device body, and the labor intensity of workers is reduced.

The utility model discloses a non-condensable gas removing device, and belongs to the technical field of hot-pressing distillation. Which comprises an evaporator (6) and a buffer tank (10), and is characterized in that two pipelines, namely a first discharge pipeline (5) and an injection water connecting pipeline (9), are led out from the side part of the evaporator (6), the injection water connecting pipeline (9) is connected with the buffer tank (10), and the communication part of the first discharge pipeline (5) and the evaporator (6) is positioned at the upper part of the liquid level of injection water in the evaporator (6); and the communication part of the injection water connecting pipeline (9) and the evaporator (6) is positioned at the lower part of the liquid level of the injection water in the evaporator (6). In the non-condensable gas removal device, the first exhaust pipeline directly exhausts the non-condensable gas, the injection water connecting pipeline introduces the injection water in the evaporator into the buffer tank and then exhausts the injection water through the buffer tank, and the two paths of non-condensable gas are exhausted, so that the problem that the non-condensable gas continuously gathers in the evaporator and cannot be exhausted in time can be solved; and the water quality of produced water of the water for injection is ensured.

The utility model discloses a freeze-drying medicine bottle washing device, which relates to the field of bottle washing device structures, and comprises a supporting box body, a bottle washing device, a bottle washing device, a bottle washing device and a bottle washing device, the moving plate is arranged to be capable of entering the supporting box body from the inlet after being driven; the supporting rod piece is arranged in the supporting box body and used for supporting the movable plate piece; and the cleaning liquid pipeline system is arranged above the supporting rod piece and comprises a purified water supply system and an injection water supply system, and the movable plate piece is further arranged to transport the medicine bottles to be cleaned from the purified water supply system to the injection water supply system. Through the arrangement of the purified water supply system and the injection water supply system, medicine bottles can be sequentially cleaned with purified water and injection water in the supporting box body under the cooperation of the movable plate, so that the purposes of improving the cleaning efficiency and preventing the medicine bottles from being polluted by microorganisms again are achieved.

The invention provides a stable alprostadil injection and a preparation method thereof, and belongs to the technical field of pharmaceutical preparations. The stable alprostadil injection comprises the following components: alprostadil, oil for injection, a compound emulsifier, an osmotic pressure regulator and water for injection. According to the invention, a certain amount of soybean phosphatidylinositol is used as an auxiliary emulsifier, and the auxiliary emulsifier and high-purity egg yolk lecithin (for injection) form a composite emulsifier, so that the chemical stability of the product can be remarkably improved, the product can tolerate an over-killing method, the product has a high SAL (Sterile Assurance Language), and the product can be stored for 24 months at a conventional cold chain temperature (2-8 DEG C), and the product quality still meets the national drug standard.

The utility model relates to the technical field of water quality detection, in particular to an on-line monitoring device for an injection water system. Comprising an injection water storage tank, a distillation machine, a multi-channel adjusting mechanism and a waterway circulation structure, the injection water storage tank is communicated with a first buffer pipe, and the first buffer pipe is communicated with a third return pipe; the multi-channel adjusting mechanism comprises a circular shell, a rotating disc and a power assembly installed on the circular shell and used for driving the rotating disc to rotate. The waterway circulating mechanism comprises a water pump, a water pipeline and a backflow pipeline; a distilled water output pipe is connected between the output end of the distilling machine and the circular shell, and a first return pipe is communicated with the distilled water output pipe. According to the technical scheme, unified monitoring of the backflow water and the distilled water can be achieved by arranging the single detection device, the equipment cost and the monitoring cost are reduced, and the water quality of the backflow water path and the distilled water path can be independently detected.

The invention discloses a sulpiride injection and a preparation method and application thereof.The preparation method of the sulpiride injection comprises the following steps that S1, injection water accounting for 60%-80% of the preparation amount is added into a liquid preparation tank, the temperature of the injection water is controlled, the pH value is adjusted to 1.2-1.3 with sulfuric acid, stirring is conducted, and a first solution is obtained; s2, adding sulpiride into the first solution, stirring and dissolving to obtain a second solution; s3, adding sodium chloride into the second solution, stirring and dissolving to obtain a third solution; s4, adding the balance of the water for injection into the third solution for constant volume, adjusting the pH value to 3.0-6.0, and obtaining a fourth solution, the content of sulpiride in 1000ml of the water for injection is 23-28g; and S5, performing primary filtration and secondary filtration on the fourth solution, and sterilizing to obtain the sulpiride injection. The preparation method disclosed by the invention is simple and convenient in process, few in target product impurities, low in impurity content, safe and stable.

The invention relates to the technical field of oil exploitation, and discloses an intelligent hydraulic capacity expansion profile control and displacement oil field recovery process which comprises the following steps: intelligently monitoring formation parameters: acquiring formation parameters such as formation pressure, temperature, oil saturation and permeability in real time by deploying various sensors around an oil well and in an oil layer; the sensors are used for transmitting data to the central control system and comprise a pressure sensor, a temperature sensor, a nuclear magnetic resonance oil saturation sensor and a permeability tester. The data are analyzed in real time through a central control system, and therefore intelligent allocation of injected fluid and accurate execution of hydraulic capacity expansion are achieved. According to the specific characteristics of an oil layer, the proportion of injected water, a polymer solution and other fluids is automatically adjusted, cracks are formed in the oil layer through hydraulic fracturing equipment, and the seepage area is increased. And meanwhile, injection parameters can be dynamically adjusted through intelligent control over the profile control and displacement process, and efficient displacement of fluid in an oil layer is ensured.

The small-capacity injection preparation device comprises a mixer, the top of the mixer is communicated with a mixed injection water inlet pipe, an output shaft of a motor is fixedly connected with the bottom end of a first rotating rod, the top end of the first rotating rod is connected with the bottom of a first gear, and the first gear can be meshed with a plurality of second gears; the bottom of the second gear is rotationally connected with the vertical rod through a third bearing, the second gear can be meshed with the gear ring, the top of the round shell is fixedly connected with the bottom end of a second rotating rod, an inner cavity is formed in the second rotating rod, the top end of the inner cavity of the second rotating rod communicates with a liquid outlet of a rotating connector, and the inner cavity communicates with one end of a liquid outlet pipe. A liquid inlet of the rotary connector is communicated with the bottom of a medicament solution preparation device through a pipeline, an auxiliary solution preparation device is arranged on the side portion of the mixer, the bottom of the mixer is communicated with a discharging pipe, and a third liquid pump and a ninth electromagnetic valve are arranged on the discharging pipe. According to the invention, the production efficiency can be improved while the quality of a small-volume injection product is ensured.

The invention relates to the technical field of oilfield injection water treatment, in particular to a scale settling and sewage filtering device, which is used for solving the problems of different problem solving objects, unknown filtering strength and low pertinence caused by the fact that the reason for generating impurities in oilfield injection water is not analyzed clearly in the prior art. An inlet flange and an outlet flange are connected to the shell, the inlet flange is connected to a water supply pipe, the outlet flange is connected to a water injection pump, and the inner diameter of the inlet flange is smaller than that of the shell, so that the flow speed of incoming water is reduced after the incoming water enters the shell through the inlet flange, and scale is deposited; the cross sectional area of the shell of the device is three times that of the water inlet pipe, so that dirt in water can be deposited, particles in the water are greatly reduced, impact on parts such as a valve seat, a valve plate and a plunger in the water injection pump is reduced, the maintenance frequency of the water injection pump is reduced, and the water injection efficiency is improved.

The invention relates to the technical field of injection water delivery, in particular to a low-temperature injection water distribution system and a control method thereof.The low-temperature injection water distribution system comprises a low-temperature injection water preparation unit, a storage tank, a low-temperature injection water distribution unit and a low-temperature injection water return unit, and a water inlet, a water outlet and a water return port are formed in the storage tank; the low-temperature injection water preparation unit is communicated with the water inlet so as to convey low-temperature injection water into the storage tank, and the low-temperature injection water distribution unit is communicated with the water outlet so as to distribute the low-temperature injection water in the storage tank to all low-temperature points; the water return opening and the low-temperature points are communicated with the low-temperature injection water return unit so that low-temperature injection water can circulate. The invention aims to provide a low-temperature injection water distribution system and a control method thereof so as to reduce the manufacturing cost.