321 results about "Fluid temperature" patented technology

The invention provides a temperature measurement system and compensation method of non-direct contact fluid, and relates to the technical field of temperature detection. The temperature measurement system comprises a dynamic compensation module, a steady-state deviation compensation module and a steady-state judgment module, the temperature sensor collects the temperature value of fluid which is not in direct contact with the temperature sensor, and the temperature value is subjected to hysteresis compensation through the dynamic compensation module. The steady state judgment module judges whether the temperature is in a steady state or not according to the temperature value subjected to hysteresis compensation, and if not, the temperature value subjected to hysteresis compensation is output; if yes, a steady-state deviation compensation module carries out steady-state deviation compensation on the temperature value after hysteresis compensation and then outputs the temperature value. The temperature measurement system can effectively improve the accuracy and response characteristics of non-contact fluid temperature measurement by combining dual mechanisms of dynamic compensation and steady-state deviation compensation.

The invention provides a well-station-oil depot coupling simulation-based crude oil coagulation risk optimization method, which comprises the following steps of: firstly, designing a well-station-oil depot pipe network system topological structure, analyzing a pipe network structure, and numbering wells, stations, oil depots and pipelines to obtain the numbers of an upstream pipeline and a downstream pipeline of each pipeline; then, a well-station-oil depot pipe network system is disassembled into a node + pipeline form, each pipeline is dispersed into a plurality of calculation units, and the pipe section length, diameter and dip angle of each calculation unit are obtained; according to the fluid temperature of each wellhead, the fluid entering pressure of each station and a PVT physical property table, assuming the temperature and pressure of all nodes to obtain the average temperature and pressure of each pipe section; and calculating crude oil physical property parameters, crude oil flow parameters, pressure drop and temperature drop parameters of each pipe section by adopting an iterative method to obtain pressure and temperature of all nodes, and finally judging the pipe condensation risk according to the physical property parameters and the pipeline pressure and temperature. The pipe condensation risk can be automatically judged, and the production efficiency and safety are improved.

The invention relates to the technical field of ground source heat pumps, and discloses a buried pipe type heat exchanger temperature distribution determining method which is based on a U-shaped buried pipe heat exchange system and comprises the steps that an equilibrium equation is established, and initial conditions and boundary conditions are set; calculating thermal resistance of each part according to thermophysical parameters of rock soil and a system; determining an initial drilling wall temperature distribution and an initial fluid temperature distribution before the system begins to operate; determining the heat flux density of the rock soil converged outside the well in each small section of the U-shaped buried pipe; establishing a line source model equation set, and calculating drilling wall temperature distribution in a system operation process; well wall temperature distribution in the system operation process is substituted into the balance equation, and fluid temperature distribution and heat exchange amount in the system operation process are obtained; and performing cycle calculation according to the cycle index and the operation period. According to the method, the ground heat exchanger model is established through the virtual heat source method, the temperature distribution condition of rock soil and fluid in the well in the operation cycle is obtained, and the thermal behavior of the tube well in the drilled well is predicted.

The invention discloses a fluid temperature and pressure partitioning and heat transfer prediction method under supercritical pressure, which comprises the following steps: firstly, constructing a dimensionless criterion SEN to quantitatively evaluate a fluid expansion effect, and then dividing heat transfer into a plurality of temperature and pressure intervals based on Nuexp / Nufc; for each partition and the constructed dimensionless criterion, a temperature interval of a dominant mechanism and characteristic parameters representing the dominant mechanism are extracted, and particularly, the reasonability of a single-phase fluid hypothesis and a two-phase fluid hypothesis can be rapidly judged through the constructed dimensionless criterion; and establishing a partition prediction model by adopting a mechanism and data dual-drive framework. And finally, calling the corresponding sub-model according to the working condition and processing the cross-region continuity to realize high-precision heat transfer prediction in the full working condition range. The method solves the problem that a traditional method is difficult to predict full-temperature pressure interval heat transfer at high precision, and can be used for precise thermal design of the supercritical working medium in thermal equipment such as boilers, heat regenerators and coolers.

The invention belongs to the technical field of industrial automation control, and relates to a seasoning filling PID parameter adaptive optimization control method and system. The method comprises the steps that the real-time temperature of fluid in a filling pipeline, the static pressure of a valve inlet, the instantaneous flow and a valve opening instruction are collected, and moving average filtering preprocessing is carried out; constructing a self-adaptive forgetting factor calculation model based on the viscosity-temperature characteristics, and calculating a current optimal forgetting factor according to the fluid temperature change rate, the flow prediction error and the fluctuation condition of the flow data; a recursive algorithm is used for identifying the system process gain online, and the proportional gain of a PID controller is calculated in real time according to the identified process gain and the ratio of the hydrostatic pressure to the standard reference pressure; and the gain is input into a controller, and a final valve opening instruction is generated in combination with integral and differential terms. According to the method, the dynamic adjustment of the algorithm memory length can be realized, the viscosity change can be quickly adapted, excessive filling and slow response are eliminated, and high-precision filling under complex working conditions is ensured.

According to the flow control system and method for the filter element flow resistance performance test provided by the invention, the self-adaptive PID control closed loop taking the real-time flow resistance coefficient as the core feedback quantity is constructed, and the high-precision sensing network and the intelligent decision algorithm are integrated; the defect that traditional manual or simple PID control is difficult to adapt to filter element characteristic change and environmental interference is successfully overcome; specifically, the system dynamically collects flow, pressure difference and temperature signals and calculates the flow resistance coefficient of a filter element in real time, PID control parameters (proportion, integration and differential terms) are adjusted in a self-adaptive mode according to the flow resistance coefficient, meanwhile, the reference value of a sensor is periodically calibrated so as to eliminate drift errors, and an electric control valve is driven to rapidly and accurately respond; according to the method, the dynamic stability and static precision of flow control are remarkably improved, multi-source interference such as pipeline pressure pulsation and fluid temperature change is effectively compensated, the steady-state error of the test flow is greatly reduced, and finally the efficient and high-precision automatic test of the flow resistance performance of the filter element is achieved.

The present invention provides a monitoring system comprising: a sensor which is provided in a pipe for connecting a demand end and a supply end of a fluid and which collects sensing information related to the pipe; a receiving unit which is connected to the sensor and which receives sensing information from the sensor; a control unit for outputting a temperature value of the fluid by using the sensing information through calibration; a heating cable which is provided in the pipe, and which heats the pipe on the basis of the temperature value of the fluid; an HMI module, which uses a graphic model related to a pipe system including a plurality of pipes, so as to display the temperature value of the fluid and a change, due to heating, in the temperature value of the fluid; and a display for outputting the graphic model. According to the present invention, the temperature of the fluid can be controlled using the heating cable through monitoring of heat tracing based on an optical fiber sensor.

Techniques of processing a flare gas include operating a flare gas piping network to output a flare from a plurality of flows of a purge gas in purge gas headers coupled to a main header, and during operation of the flare gas network to output the flare from the plurality of flows of the purge gas: obtaining a fluid pressure of the flow of the purge gas at each purge gas header; obtaining a fluid temperature of the flow of the purge gas at each purge gas header; and obtaining a rate of the flow of the purge gas at each purge gas header; and based on the obtained fluid pressures, fluid temperatures, and rates of the flows of the purge gas, determining an optimized flow velocity of the purge gas at each of the plurality of purge gas headers.

The application discloses a kind of in-pipe fluid temperature measurement method, system, electronic equipment and storage medium, it is related to in-pipe temperature measurement technical field, the method comprises: determining the fixed parameter of target to be measured, the flow rate of fluid, noise variance and observation variance;Fixed parameter includes pipe wall thickness, pipe wall material thermal conductivity, fluid convection heat transfer coefficient and air convection heat transfer coefficient;According to the optimal in-pipe temperature of last time and the flow rate of fluid, determine the predicted temperature of current time;According to the optimal covariance of last time and noise variance, determine the covariance of current time;The optimal covariance of last time is determined according to the weight coefficient of last time, covariance, fixed parameter and observation variance;According to the weight coefficient of current time, determine the covariance of current time, fixed parameter and observation variance;According to the predicted temperature of current time, weight coefficient, outer wall temperature, air temperature, fixed parameter and observation variance, determine the optimal in-pipe temperature of current time.The application expands the use range of in-pipe temperature measurement.

The present invention discloses a thermal mass flowmeter probe, which includes a hollow outer shell, a heating element with temperature detection function and a temperature detection element; the heating element is arranged at the lower end inside the outer shell, and its lower end face is in the same plane as the lower end face of the outer shell and is axially perpendicular to the outer shell; the temperature detection element is arranged inside the outer shell and is thermally isolated from the heating element. Compared with the prior art, the heating element in the thermal mass flowmeter probe of the present invention is arranged at the lower end inside the outer shell and the lower end face is axially perpendicular to the connecting shaft of the thermal mass flowmeter. Therefore, while the heating element is well protected, it can also have good thermal contact with the fluid, thereby improving the measurement accuracy of the thermal mass flowmeter probe. In addition, the heating element and the temperature detection element are thermally isolated, reducing the influence of the heating element on the temperature detection element, making the measurement of the fluid temperature more accurate, and thus the flow measurement more accurate.

The invention provides an aluminum alloy precision forging forming die multi-area independent temperature control system and method, the system comprises a forming die assembly, a force thermal decoupling support base, a fluid temperature control supply station and a main control unit, the forming die assembly comprises a plurality of heat conduction inserts separated by heat insulation isolation layers; a rigid bearing loop and a dynamic thermal control loop which are parallel to each other are integrated on the force thermal decoupling supporting base, the dynamic thermal control loop drives the high-thermal-conductivity telescopic thermal bridge and the interface flexible dielectric layer to ascend and descend through a displacement actuator, and in a non-forging state, the thermal bridge supports the heat conduction insert and maintains a safety gap with the rigid bearing stand column; in the forging impact stage, the heat conduction insert moves downwards to eliminate the safety gap, the rigid bearing stand column bears the forming load, the main control unit adjusts the output force of the actuator according to temperature feedback, and the contact thermal resistance is adjusted and controlled in real time by changing the interface contact pressure. The problem that a precise temperature control assembly is difficult to bear forging impact is solved, and quick and precise response of multi-area independent heat flow is achieved.

A hydraulic system (12) for an aircraft (10), wherein the hydraulic system (12) includes a hydraulic power pack (14), a hydraulic fluid reservoir (28) and a hydraulic pump (30), a hydraulic consumer (18), a high-pressure supply line (38) supplying the hydraulic consumer (18) with hydraulic fluid under higher pressure, and a low-pressure return line (40) returning hydraulic fluid under lower pressure from the hydraulic consumer (18); heating device (42) with a short-cut line (44) connecting the high-pressure supply line (38) with the low-pressure return line (40) and a heater valve (46) for opening and closing the short-cut line (44), and a control and monitoring unit (43). Temperature management includes automatically controlling a fluid temperature by monitoring the fluid temperature and controlling the heater valve (46).

A cooling system includes one or more cooling panels for affecting a cooling load in an environment. The cooling system also includes a heat exchanger coupled to the one or more cooling panels. Each cooling panel includes a film, a panel body, an inlet port, an outlet port, and a fluid path. The film's radiative properties allow it to achieve a temperature less than an environment temperature. The heat exchanger includes ports that are coupled to the fluid paths of the one or more cooling panels. A control system is used to control flow rates, flow paths, fluid temperatures, component temperatures, cooling rates, component operation, or other aspects of a cooling system. For example, the control system controls or monitors pumps, compressors, fans, valves, sensors, actuators, or a combination thereof.

The invention relates to the technical field of crossing of mechanical engineering and thermodynamics, in particular to novel intermittent piston equipment. The device is characterized by comprising a gas-liquid cylinder system, a piston system, a feeding system, a discharging system and a cooling system, wherein the gas-liquid cylinder system comprises a plurality of partition plates with holes and can further comprise a plurality of monitoring control assemblies, and the piston system comprises a plurality of piston push plates with holes and a plurality of piston driving mechanisms and can further comprise a plurality of monitoring control assemblies. The cooling system comprises a plurality of thermal contact modules, a plurality of heat transfer modules and a plurality of heat dissipation terminals, and can further comprise a plurality of monitoring control assemblies. A perforated partition plate, a perforated piston push plate and a monitoring control assembly are additionally arranged in an existing piston equipment technology, meanwhile, piston pushing and cooling system cooling integrated intermittent operation is adopted, the position of a piston and fluid pressure are monitored in real time, a driving signal is dynamically adjusted, and the working efficiency is improved. Efficient conversion between mechanical energy and gas pressure energy, hydraulic energy or fluid heat energy and precise control over the fluid temperature are achieved, the compression, expansion and mass transfer and heat transfer efficiency of fluid in equipment is greatly improved, the technical application scene is wide, and the technical application value is high.

This invention provides a permanent antistatic PC material preparation system, comprising a mixing unit, an extrusion granulation unit, and an injection molding unit connected in sequence. The injection molding unit includes a barrel, a screw assembly rotatably disposed within the barrel, and an ERT sensor disposed at a nozzle at the end of the barrel. The ERT sensor includes an electrode array for online acquisition of electrical impedance tomography (EIT) data of the melt passing through the nozzle. The screw assembly includes a screw spindle with a longitudinally penetrating internal heat conduction oil channel. This internal heat conduction oil channel is connected to an external temperature control system via a connector. One section of the barrel is a compression section. A segmented thermal response sleeve is fitted around the outer periphery of the screw spindle within the compression section. The outer surface of the thermal response sleeve is provided with an outer peripheral conveying spiral. The thermal response sleeve responds to changes in the fluid temperature within the internal heat conduction oil channel by generating radial expansion displacement, thereby dynamically adjusting the compression ratio by changing the effective root diameter of the screw assembly within the compression section.

The invention provides a standard volume correction method and device for a piston type volume tube. The outer wall distributed temperature array is adopted to replace a traditional intrusive probe, the spatial resolution is improved, the complex temperature gradient existing in the axial direction of the volume tube can be more accurately captured, and particularly the defect that under the condition that the physical property of a medium is not uniform or environment heat exchange is not uniform, the temperature gradient of the volume tube is not uniform is overcome. And single-point temperature measurement cannot truly reflect the equivalent average temperature of the fluid. Meanwhile, the fluid temperature of the partition is inversed through the pipe wall temperature array, the heat conduction error in a traditional intrusive temperature measurement method is eliminated, and the temperature measurement deviation is remarkably reduced. And finally, the modular design of the sensor supports single-point replacement, so that the maintenance cost is reduced, the layout of the sensor can be conveniently adjusted according to actual requirements, and the temperature monitoring effect is further optimized.

The application relates to the field of temperature control valves, and provides a temperature control valve system which comprises a first three-way valve, a second three-way valve, a temperature sensor, a delivery pump and a control terminal, forms multiple different circuits, utilizes the temperature sensor to monitor the fluid temperature in a first pipeline in real time, utilizes the control terminal to control the opening and closing and opening degree of each valve according to the data monitored by the temperature sensor, and timely reduces or increases the temperature, and improves the response speed. The application also provides an air wave therapeutic instrument provided with the temperature control valve system, which comprises a capsule body, the temperature control valve system and a cold water tank. The application has the effects that the temperature is adjusted by using the human body temperature of a user, the cost of the air wave therapeutic instrument is reduced, green environmental protection is realized, meanwhile, the temperature of the whole system is ensured to be not too high, and the effect of avoiding scalding is achieved.

The invention relates to a temperature control device (1) for temperature control of a fluid, comprising: at least one fluid supply (11), at least one fluid discharge (12), and at least one fluid transport element (13), wherein the fluid transport element (13) comprises a drive (131) and at least one fluid conveying element (132) connected to the drive (131), and the drive (131) moves the fluid conveying element (132) as required, wherein the fluid conveying element (132) is in contact with the fluid at least partially, and when the drive (131) is activated, the fluid conveying element (132) transports fluid from the fluid supply (11) to the fluid discharge (12). The fluid conveying element (132) comprises an elastocaloric material at least partially. The invention also relates to a vehicle with a temperature control device (1) and a method for temperature control of a fluid.

A cutting tool with an integrated thermoelectric power generation (TEPG) module includes a body and a cutting blade. The cutting tool with the TEPG module further includes the TEPG module disposed in a cavity of the body of the cutting tool. A method for utilizing the cutting tool with the TEPG module includes identifying a cutting operation and monitoring temperature for one or more sensors for the cutting tool with the integrated TEPG module. The method further includes determining a temperature threshold has been reached for at least one sensor from the one or more sensors and activating coolant fluid flow towards the cutting tool with the integrated TEPG module. The method further includes generating, by the TEPG module, power based on a temperature difference from heat generated by the cutting operation and a coolant fluid temperature.

The present application relates to the field of seismic physical simulation experiment, and discloses a kind of seismic physical simulation experiment device and method, and the seismic physical simulation experiment device includes the closed chamber for containing reservoir model and filling fluid, the ultrasonic detection device for detecting reservoir model, the fluid control system for controlling the pressure of fluid and the temperature control system for controlling the temperature of fluid, and reservoir model is immersed in fluid.The present application seismic physical simulation experiment device places reservoir model in the fluid in closed chamber, adjusts the fluid pressure in closed chamber using fluid control system, adjusts the fluid temperature in closed chamber using temperature control system, so that the environment temperature and pressure where reservoir model is located are consistent with the real reservoir to be simulated;The data of reservoir model are comprehensively collected by ultrasonic detection device, so that experimental data closer to the simulated real reservoir can be obtained.

The invention discloses a temperature control adjusting method for an aluminum plate strip cleaning solution. The temperature control adjusting method comprises the following steps: S1, presetting a target temperature T0; s2, a first infusion pump and a second infusion pump are started, the cleaning liquid sequentially passes through the cleaning tank body, the first infusion pump, the circulating tank body, the second infusion pump, a flow control valve and a backflow device and then flows back to the cleaning tank body, and closed-loop circulation is formed; s3, the temperature T2 of the cleaning solution in the corresponding area of the temperature sensors corresponding to the backflow devices in a one-to-one mode is utilized, meanwhile, the moving speed V1 of the aluminum plate strip is obtained through a speed encoder of the aluminum plate strip conveying mechanism, and detection signals of the temperature sensors and the speed encoder are both transmitted to a main controller; and S4, the main controller dynamically adjusts the temperature T1 of the cleaning liquid in the circulating tank body and the opening degree X of the corresponding flow control valve according to the deviation between T2 and T0 and the real-time value of V1. The core area T2 of the cleaning tank is monitored in real time, double variables (T1, X) are cooperatively adjusted, it is ensured that T2 is stabilized at T0 + / -1 DEG C, and the high-precision cleaning requirement is met.

The invention relates to an offshore CCUS well building shaft temperature and pressure coupling calculation method which comprises the following steps: substituting an initial temperature and pressure profile of a shaft into a shaft drilling fluid density prediction model to obtain drilling fluid density, and substituting the initial temperature and pressure profile into a rheological property prediction model to obtain drilling fluid viscosity; fluid pressure in the drill stem and fluid pressure in the annulus are obtained; all nodes with shaft pressure prediction differences meeting the precision requirement are selected; the fluid temperature is updated through the temperature model and the fluid density of the node with the difference value meeting the precision requirement of the wellbore pressure prediction difference value of the node; according to the fluid with the updated temperature, adjacent nodes with the shaft pressure prediction difference meeting the precision requirement are selected; selecting nodes corresponding to all fluids of which the circulating flowing time in the shaft meets the preset time requirement from all nodes of which the shaft pressure prediction difference meets the precision requirement; and taking the temperature and the pressure of the node meeting the requirements as final wellbore temperature and pressure profiles.

The invention belongs to the technical field of water supply equipment, and particularly discloses a valve device and water supply equipment. A valve body assembly of the valve device is provided with a first port communicated with the hot water channel, a second port communicated with the cold water channel and a valve cavity communicated with the first port and the second port, and a communication port is formed in the valve cavity. The valve element assembly comprises a valve element capable of being axially and movably installed in the valve cavity, a blocking piece and a temperature adjusting piece, wherein the blocking piece and the temperature adjusting piece are both connected to the valve element. The blocking piece is used for opening or blocking the communicating opening. The temperature adjusting piece can change deformation force acting on the valve element according to the fluid temperature of the first port. When the fluid temperature is lower than the preset temperature, the fluid pressure of the first port can enable the valve element to overcome the deformation force so that the communication port can be communicated; when the fluid temperature is higher than the preset temperature, the blocking piece blocks the communicating opening. The valve device has the one-way conduction function and the temperature sensing function, the machining cost is reduced, no complex pipeline system exists, the cost is reduced, and the reliability of water supply equipment is improved.

The invention provides a ship pipeline inner wall fluid temperature inversion method and device and electronic equipment, and the method comprises the steps: obtaining an actual measurement value of the outer wall fluid temperature of a target point of a ship pipeline, determining a to-be-inverted single quantity parameter, and determining the basic data and boundary conditions of the ship pipeline; constructing a target function based on the measured value of the outer wall surface fluid temperature of the target point and the predicted value of the outer wall surface fluid temperature, and solving the target function by taking minimization of the target function as a target to obtain an optimal value of a to-be-inverted single quantity parameter; the predicted value of the outer wall surface fluid temperature of the target point is determined based on a to-be-inverted single quantity parameter, basic data and a boundary condition; and according to the optimal value of the to-be-inverted single quantity parameter, determining a predicted value of the inner wall surface fluid temperature of the target point. According to the method, the objective function is constructed and solved, so that the fluid temperature of the inner wall surface of the ship pipeline can be predicted, and the accuracy of temperature prediction is improved.

The invention provides an in-use heat exchanger energy efficiency evaluation method and system based on the first law of thermodynamics. The method comprises the following steps: acquiring volume flow, temperature and pressure of cold and hot fluid of a heat exchanger under an in-use working condition and pressure measuring hole ground clearance data; the total heat transfer coefficient, the cold fluid pressure drop and the hot fluid pressure drop of the heat exchanger under the working condition are calculated; stipulating the flow velocity and qualitative temperature of cold and hot fluid of the heat exchanger under a standard working condition; calculating the total heat transfer coefficient, the cold fluid pressure drop and the hot fluid pressure drop correction, and calculating the total heat transfer coefficient, the cold fluid pressure drop and the hot fluid pressure drop of the in-use heat exchanger under the standard working condition; the energy efficiency index value of the in-use heat exchanger under the standard working condition is calculated, and energy efficiency grades are divided. The total heat transfer coefficient correction and the pressure drop correction are introduced, and the influence of dirt in the heat exchanger on energy efficiency is fully considered. By specifying the standard working condition, the evaluation result is not affected by the fluid temperature and flow velocity, and the stability is good.

A method and system for controlling internal temperature of a server, a device, a non-transitory readable storage medium, and a server, which relate to the technical field of servers. The method is applied to a system for controlling the internal temperature of the server, and the method includes: acquiring, by the controller, element temperature of the heating elements in the heating element group; acquiring, by the controller and the fluid temperature sensor, the fluid temperature of the fluid between the heating elements in the heating element group; determining, by the controller, a motor speed of a motor corresponding to the heating element group according to the element temperature and the fluid temperature; and controlling, by the controller, the motor speed, and controlling a fluid velocity of the fluid between the heating elements in the heating element group, to cool interior of the server. This method continuously monitors the fluid temperature of the fluid between the heating elements to control the fluid state inside the server, thereby enhancing the cooling effect on the interior of the server.

Disclosed are an apparatus, system, and method for providing at least one fluid temperature value of a fluid flowing through a pipe, as well as a vehicle equipped with the system. The present invention relates to an apparatus for providing at least one fluid temperature value of a fluid flowing through a pipe, the apparatus comprising an input, a processing device, and an output, the input configured to receive a first temperature signal providing at least one first temperature value from a first sensor in the pipe in contact with a first thermally conductive member extending to the fluid in the pipe, the first temperature signal providing at least one first temperature value, the output configured to provide an output signal including the at least one fluid temperature value, and the processing device configured to perform at least the following steps: receiving the first temperature signal from the input; determining the at least one fluid temperature value from the first temperature value using a second temperature value representing the temperature of the air surrounding the pipe; and providing an output signal including the at least one fluid temperature value. Thus, the present invention provides an apparatus for providing more accurate fluid temperature values.

The invention relates to a liquid-propellant rocket engine test assembly, in particular to a detachable plug-in temperature sensor mounting mouthpiece, and solves the technical problems that an existing temperature sensor mounting mouthpiece is poor in measurement accuracy, cannot be detached, wastes cost and is complex to mount, so that the simulation test efficiency is low. The detachable plug-in temperature sensor installation mouthpiece comprises a step joint, a spherical joint, a first mouthpiece installation cylinder and a second mouthpiece installation cylinder. The lower end of the step joint is connected with the upper end of the spherical joint; a first step hole matched with the plug-in temperature sensor in shape is formed in the step joint, and a first through hole matched with the plug-in temperature sensor in shape is formed in the spherical joint; the first through hole is communicated with the first stepped hole; the second mouthpiece mounting cylinder is used for fixing the plug-in temperature sensor in the step joint; the first mouthpiece mounting cylinder is used for fixing the lower end of the spherical joint inserted into the tee joint in the tee joint so as to measure the temperature of fluid in the tee joint.

The utility model belongs to the field of wire drawing liquid cooling, particularly relates to a wire drawing liquid cooling device, and aims to solve the problems that in order to guarantee the cooling effect of annealing liquid (or wire drawing liquid) in the using process, the heat exchange area of a plate heat exchanger is increased, the temperature of cooling water is reduced to the maximum extent, and the cooling effect is poor. In order to solve the problems that the size of the plate heat exchanger is increased and the economical efficiency is poor due to the fact that the heat exchange area of the plate heat exchanger is increased without limitation, the following scheme is provided: the plate heat exchanger comprises a cooling-water machine, a first plate heat exchanger and a second plate heat exchanger, by arranging the cooling-water machine, the heat exchange area of the plate heat exchanger does not need to be increased, and the temperature of cooling water (serving as cold fluid) is effectively reduced, so that the cooling effect on annealing liquid is improved, the cooling effect of the annealing liquid (or wire drawing liquid) on copper wires is enhanced, the drawing speed is increased, and the copper wires cannot be oxidized; and economic investment caused by increasing the heat exchange area of the plate heat exchanger is also avoided.