84results about How to "Avoid uneven distribution" patented technology

The application relates to the secondary battery technical field, and discloses a manganese-based positive pole piece, a preparation method thereof, a secondary battery and an electric equipment. The positive pole piece comprises, in sequence from the thickness direction of the pole piece, a current collector, a manganese-based positive active material layer, an oxide layer and a phosphorus-containing oxygen acid covalent modification layer; the oxide layer and the phosphorus-containing oxygen acid covalent modification layer are connected through P-O bonds. The application proposes that the application constructs a stable multilayer interface modification structure by covalently combining the oxide layer and the phosphorus-containing oxygen acid covalent modification layer through sequentially stacking a multilayer structure, can cover the entire pole piece macroscopic interface, has strong binding force, can strengthen the adsorption capacity of manganese ions, block the interface side reaction chain, avoids the problems that the traditional particle-level coating is easy to break and fail, the binding force of the conventional protective film is weak and the distribution is uneven, and therefore can effectively inhibit the manganese ion elution and electrolyte decomposition, has the advantages of improving the battery capacity retention rate, the cycle stability and the thermal safety.

This utility model discloses a feed feeding device, belonging to the technical field of feed feeding equipment. It includes a support frame, a storage box mounted on the support frame, a discharge port on the bottom wall of the storage box, a rotatable discharge pipe at the discharge port, a hollow cylindrical feeding box at the bottom of the discharge pipe, a drive assembly mounted on the support frame for rotating the discharge pipe, and multiple dispersing rods on the inner wall of the discharge pipe for breaking up the material inside. The bottom and side walls of the feeding box are provided with multiple discharge holes. This utility model, by rotating the feeding box, enables multi-directional and uniform feed feeding, effectively avoiding feed accumulation and uneven distribution. The dispersing rods break up the feed during rotation, preventing clumping and blockage of the discharge holes, ensuring smooth feeding operations.

The invention relates to a Sudoku three-dimensional fabric forming process which comprises the following steps: constructing a three-dimensional skeleton with at least 3 * 3 array cavities by adopting first warp yarns, second warp yarns and weft yarns of a skin-core structure; a first type of orthogonal interaction locking structure is adopted at a central node, and a second type of surrounding bundling structure is adopted at peripheral nodes, so that the overall stability is enhanced; then, functional materials are injected into the cavities, the first warp skin layer is melted or dissolved in a heat or solvent mode and then solidified, and therefore the functional materials are sealed in the cavities of all the units; and finally binding knots by using weft yarns and applying hot pressing for reinforcement. The process can realize differentiated design of the cavity structure and stable packaging of the functional material, and is suitable for preparing the composite material preform with thermal management, sensing or bearing functions.

The application discloses a die flash groove structure for asymmetric forging, which can be applied to the forging of circumferential asymmetric class and axial thin-wall deep cavity forgings, can reasonably distribute materials, effectively increase the outflow resistance of the flash, improve the filling capacity of the forgings, improve the quality of the forgings, reduce material consumption and reduce production cost. The upper die and the lower die are used for being mounted on a forging press, the middle part of the upper die and the lower die forms a forging cavity, the edge part of the upper die and the lower die is provided with a flash groove, the flash groove comprises a bridge part and a bin part, the cavity is a non-symmetrical deep cavity, the bin part is horizontally arranged, and the upper end of the bridge part is outwardly inclined.

The digital dyeing device for spinning comprises a machine frame, a feeding roller, a first printing head and a second printing head, the feeding roller, the first printing head and the second printing head are installed on the machine frame, a material guiding roller and a reversing roller are installed on the machine frame, a first tensioning device is installed between the feeding roller and the material guiding roller, and the first printing head is installed on the upper portion between the first tensioning device and the material guiding roller. The reversing roller is positioned below the guide roller; a guide roller is arranged at the bottom of the machine frame, a second tensioning device is arranged on the discharging side, and a pressing roller is arranged between the guide roller and the second tensioning device. The first printing head and the second printing head are arranged on the rack, the feeding direction and the discharging direction of cloth form a concentric-square-shaped structure in combination with the material guide roller and the reversing roller, the cloth conveying time is prolonged, patterns printed and dyed by the first printing head can be solidified, and due to the effect of the reversing roller, the cloth is turned over, so that the printing quality of the cloth is improved. And double-sided digital printing and dyeing can be realized.

The invention relates to a ventilator device. The ventilator device comprises a machine base, a fan set and an air guide assembly. The base comprises an outer cover and a shell. The outer cover is provided with a first air inlet and a first air outlet. The shell is provided with a second air outlet. And the outer cover is combined on the shell. The fan set is installed in the shell and comprises a shell body and a centrifugal fan. The shell is provided with a second air inlet and an air channel communicated with the second air inlet. The shell is provided with a wing-shaped flow guide part located in the air duct. The centrifugal fan is arranged in the shell. The air guide assembly comprises a stepping motor and an air guide plate. And the stepping motor is arranged in the wing-shaped flow guide part. The air deflector is combined in the air duct and is driven by the motor.

The application relates to an electric heating furnace, and relates to the technical field of electric heating furnaces, which comprises a vertically arranged tank body, a heating piece arranged in the tank body, and a stirring assembly arranged on the tank body, the heating piece is used for heating liquid in the tank body; the stirring assembly is used for stirring the liquid in the tank body in the vertical direction and the horizontal direction under the drive of heat. The application can improve the heating efficiency of the electric heating furnace on materials.

The application discloses layered composite lead-free relaxor ferroelectric material and a preparation method thereof, and belongs to the technical field of piezoelectric ceramics, and overcomes the defects that the strain excited by the lead-free relaxor ferroelectric material in the prior art is small under a low driving electric field. The layered composite lead-free relaxor ferroelectric material comprises a first relaxor ferroelectric layer, a ferroelectric layer and a second relaxor ferroelectric layer arranged in sequence; and in the layered composite lead-free relaxor ferroelectric material, 0 < ferroelectric layer mass percentage < 30%. The application provides the layered composite lead-free relaxor ferroelectric material which has low driving electric field and large strain.

The utility model relates to cement powder shunt device technical field, and disclose a cement production line is with cement powder shunt device, including storage cylinder, the inner wall fixedly connected with fixed sheet of storage cylinder bottom, one end of fixed sheet is fixedly connected with fixed sleeve, the surface rotationally connected with support subassembly of fixed sleeve, the top fixedly connected with two groups of support rod of support subassembly, one end of support rod is fixedly connected with throwing assembly, the bottom fixedly connected with shunt cylinder of storage cylinder, the inside fixedly connected with equal division subassembly of shunt cylinder, support subassembly includes two groups of rotary ring rotationally connected in fixed sleeve surface, the bottom fixedly connected with support column of rotary ring. This cement production line is with cement powder shunt device, through the setting of support subassembly and throwing assembly, avoid the cement powder of storage cylinder bottom concretion, cause the situation that the discharge efficiency reduces or is blocked, and can reduce the risk of heat accumulation.

The application discloses a kind of multi-radar resource management methods based on risk assessment, belong to radar signal processing technical field.First, the joint state space model of fusing motion state and classification state is constructed, state estimation is carried out using extended Kalman filter, and the misjudgment cost of target classification is modeled by introducing statistical risk function;Subsequently, the expected risk difference before and after observation is calculated, and the expected risk reduction value of the quantitative target current observation value is obtained;Boolean scheduling variable is introduced to construct scheduling optimization model, and the global ERR is maximized as objective function;Finally, local search and conflict resolution strategy are iteratively solved, and the optimal allocation result is quickly converged.The application realizes the scheduling target of key target priority observation, sensor resource efficient utilization and overall risk minimization.

The application discloses a single-particle luminescent material for single molecule detection, a preparation method and application thereof, and comprises the following steps: S1, styrene purification; S2, preparation of a Nile red fluorescent precursor oil phase; S3, dissolving sodium dodecyl sulfate and sodium bicarbonate in deionized water to obtain a constrained emulsion system; S4, mixing the Nile red fluorescent precursor oil phase with the constrained emulsion system to obtain a pre-emulsion; and S5, performing a free radical polymerization reaction to obtain the single-particle luminescent material. The application utilizes the strong affinity between Nile red and styrene monomers, realizes uniform mixing of the dye before polymerization, and avoids uneven distribution and leakage risks caused by later labeling. In the single-particle luminescent material, the polystyrene matrix provides a closed hydrophobic environment for the dye molecules, effectively shields the quenching of the excited state by water molecules and dissolved oxygen, and significantly improves the light stability and anti-flickering ability of the material in single molecule detection.

This invention relates to a Cr and Br dual-element doped polyanionic sodium-ion battery cathode material, sodium iron phosphate pyrophosphate, its preparation method, and its application, belonging to the field of sodium-ion battery technology. The general chemical formula of the cathode material of this invention is: Na₄Fe₂O₃. 3‑x Cr x (PO4)2P2O7Br y Where 0 < x < 0.5, 0 < y < 0.7; the precursor wet gel is obtained through a sol-gel process, dried, and then sintered. This invention relates to a Cr- and Br-doped polyanionic sodium-ion battery cathode material, sodium iron phosphate pyrophosphate. The Cr dopant enhances bulk stability, while the gradient distribution of Br forms a fast ion conduction layer on the surface. The two elements together improve the rate capability and cycle performance of the sodium-ion battery. This provides a modification strategy of significant reference value for cathode materials that suffer from low discharge specific capacity and poor cycle performance at high rates due to electron conductance differences.

The utility model relates to the technical field of lithium battery positive electrode materials, and discloses a pretreatment sagger and sintering equipment. The lithium layer is arranged at the bottom of the sagger body and is suitable for preventing lithium from being absorbed by the sagger body in the sintering process; the lithium layer is composed of one of lithium carbonate, lithium hydroxide or lithium oxide and is fixed to the bottom of the sagger body. The sintering equipment comprises a sintering furnace; the saggar bearing frame is arranged in the sintering furnace and used for fixing and arranging the multiple pretreatment saggars. The gas circulation system is used for introducing inert gas or reducing gas into the furnace in the sintering process so as to prevent lithium from being oxidized. The lithium layer can reduce direct contact between the sagger body and lithium, so that corrosion and abrasion of the sagger are reduced, and the service life of the sagger is prolonged.

The utility model discloses a rectifying tower top condenser which comprises a condenser shell, a connecting pipe is installed at the lower end of the condenser shell, and a guide hole formed in the lower side of the condenser shell is formed in the upper end of the connecting pipe; a mounting rod is mounted on the inner side of the condenser shell, a guide plate is fixed to the upper end of the mounting rod, and the lower surface of the guide plate is obliquely arranged; cooling fins are fixed to the outer side of the condenser shell and arranged in a spiral shape, a cooling pipe which is also arranged on the outer side of the condenser shell is attached to one sides of the cooling fins, a medium inlet is formed in the lower end of the cooling pipe, and a medium outlet is formed in the upper end of the cooling pipe. The condenser at least has the following beneficial effects that the heat dissipation fins and the cooling pipes are utilized, so that high-temperature gas can be more uniformly distributed in the condenser, the contact area and the contact time of the gas and a condensing medium are increased, and the condensing efficiency is remarkably improved.

This invention discloses a coal gangue grouting and filling material with high rheological resistance and resistant to bleeding, its preparation method, and its application, relating to the field of mine filling material technology. The grouting and filling material, by mass percentage, comprises: 70%~75% coal gangue, 0.55%~2.3% composite rheology modifier, and the balance being water; wherein the composite rheology modifier includes an air-entraining agent and a dispersant, with a mass ratio of (90~99):(1~10); the air-entraining agent is a surface-active foaming material, and the dispersant is a phosphate additive. In its preparation, coal gangue is first mixed with water and stirred to obtain an initial slurry; then the air-entraining agent and dispersant are mixed to prepare the composite rheology modifier; finally, the composite rheology modifier is added to the initial slurry and stirred until homogeneous to obtain the grouting and filling material. This grouting and filling material uses coal gangue as the main raw material, has a simple preparation process, and possesses excellent fluidity, stability, and pumpability.

The utility model discloses a material arranging conveying line with multiple layers of stock bins, relates to the technical field of conveying systems, and is used for solving the technical problems that materials are difficult to keep uniform when being packaged, transported and distributed at present, and the quality is possibly influenced, the material arranging conveying line with the multiple layers of stock bins comprises two parallel stock bin wall plates, air cylinder supports are arranged on the left sides and the right sides of the two stock bin wall plates correspondingly, three transverse pushing air cylinders are arranged on each air cylinder support in the longitudinal direction, the three transverse pushing air cylinders on the left side are connected with first transverse storage plates correspondingly, and the transverse pushing air cylinder on the top of the right side is connected with an inclined guide plate; the other two transverse pushing air cylinders on the right side are connected with second transverse storage plates correspondingly, and the tail end of the guide plate is matched with the first transverse storage plate on the top of the left side. According to the utility model, materials can be accurately distributed, so that the condition of non-uniform distribution of the materials is avoided; the material damage risk is reduced, the product quality is guaranteed, and the technical problems of uneven material distribution, quality damage and the like are effectively solved.

The utility model discloses an efficient dyeing and setting machine for woven belt production, which relates to the technical field of textile printing and dyeing, and comprises a drying and setting box, a drying chamber for setting a woven belt body is arranged in the drying and setting box, the inner bottom wall and the inner top wall of the drying and setting box are both provided with hollow cavities, and the two hollow cavities are communicated with each other; and air outlet holes are formed in the inner top wall and the inner bottom wall of the drying and shaping box, one end of each air outlet hole communicates with the hollow cavity, the other end of each air outlet hole communicates with the drying chamber, a draught fan used for supplying air to the interior of the hollow cavity is installed below the drying and shaping box, an electric heating wire is installed in the hollow cavity, and air holes are formed in the top wall of the drying and shaping box. According to the utility model, the problems of low drying and shaping efficiency, poor product quality consistency and high energy consumption caused by fixed air outlet of the existing dryer are solved, and efficient, high-quality, stable and energy-saving dyeing and shaping in woven belt production are realized.

The invention relates to the technical field of welding equipment, and provides road anti-collision fence auxiliary welding equipment which comprises a frame body, a workbench is fixedly connected to the top of the frame body, air cylinders are fixedly connected to the two ends of the bottom of the workbench, movable seats are fixedly connected to the output ends of the two air cylinders, and the two movable seats are slidably connected to the two ends of the workbench correspondingly; telescopic shafts penetrating through the movable seats are rotationally connected to the top ends of the two movable seats, positioning mechanisms are arranged at one ends of the two telescopic shafts, a welding device used for butt welding of the handrails is arranged at one end of the top of the workbench, a driving mechanism is arranged at the other end of the top of the workbench, and a cooling mechanism is arranged in the middle of the workbench. The positioning mechanism adopts the design of a pressing rod, a clamping plate and a pressure spring to quickly clamp the handrail, so that the operation error caused by manual alignment is thoroughly avoided, and the welding position precision of the stand column flange bottom plate and the anti-blocking block is ensured.

The utility model discloses a kind of stirring devices for solid-state battery electrolyte production, it is related to solid-state battery electrolyte stirring processing tool technical field, including main body, the feeding port being opened in the top end of main body and the discharge port being installed in the bottom end of main body, the equidistance installation of multiple supporting rods is installed in the bottom end of main body, and transmission mechanism is installed on the upper end of main body, and discharge mechanism is installed on discharge port;The utility model is through the cooperation of first gear and the second gear of periphery, it is convenient for first gear to drive multiple second gears to rotate, and then expand stirring area, avoid raw materials uneven distribution in local area;Again through the stirring of hexagonal shape, it is convenient to make stirring more sufficient, mix more evenly, and then improve mixing effect;Finally solve the problem that the simple structure of stirring rod of existing device leads to poor stirring mixing degree and single stirring rod stirring area is small, causes raw material uneven distribution.

This utility model discloses an air purification absorption tower, including a tower body with a packing layer inside. A water tank is located on the lower side of one side of the tower body, and a water pump is installed on the top of the water tank. The output end of the water pump is connected to a spray pipe, which is evenly arranged below the packing layer for spraying solvent. An arc-shaped groove is provided on the outer surface of the tower body, and filter holes are evenly opened on the surface of the groove. A collar is rotatably installed in the groove, and pipes are evenly distributed on the outer surface of the collar. The pipes are connected to the air distribution pipe and communicate with the arc-shaped cavity. A boss is provided on the outer side of the arc-shaped cavity, and a slide rod is installed in the boss. One end of the slide rod is connected to a scraper for cleaning the dust accumulated on the inner wall of the groove. The other end of the slide rod is provided with a square rod and a spring to ensure that the scraper keeps in contact with the groove. A worm gear is provided on one side of the collar, and the worm meshes with it to drive the collar to rotate, realizing automatic dust removal. The accumulated dust falls into the dust collection trough at the bottom of the arc-shaped cavity. An observation window is provided on the front side of the tower body for easy monitoring.

The utility model relates to the technical field of smelting vacuum furnaces, in particular to a smelting vacuum furnace with a smoke abatement mechanism, which comprises a vacuum furnace body, a smoke treatment mechanism is arranged on the outer side of the vacuum furnace body, the smoke treatment mechanism comprises a first smoke outlet pipe fixedly connected to the outer side wall of the vacuum furnace body, and the bottom end of the first smoke outlet pipe is fixedly connected with a filter box. The bottom end of the filter box is fixedly connected with a second smoke outlet pipe, the side, away from the filter box, of the second smoke outlet pipe is communicated with a spiral heat exchange pipe, the spiral heat exchange pipe is fixedly connected to the outer side wall of the vacuum furnace body, the end, away from the filter box, of the spiral heat exchange pipe is fixedly connected with a condensation smoke eliminator, and the bottom end of the condensation smoke eliminator is fixedly connected with a conical pipeline. The vacuum furnace body is matched with the smoke treatment mechanism, the coarse-mesh filter screen and the fine-mesh filter screen firstly filter large-particle smoke dust, the spiral heat exchange pipe is prevented from being blocked, heat in high-temperature smoke is conducted to the vacuum furnace body through the spiral heat exchange pipe, heat energy waste is reduced, and the energy utilization rate is increased.

The utility model relates to the technical field of shrink film production, in particular to a shrink film raw material particle mixing device which comprises a heating bin body, an upper shell and a stirring blade, the upper end of the heating bin body is fixedly provided with the upper shell, the stirring blade is arranged in the heating bin body, and a stirring assembly used for dispersing and stirring shrink film raw materials is arranged in the upper shell. Lifting assemblies for lifting the stirring blades are arranged at the upper ends of the stirring blades; according to the utility model, shrink film raw materials can be scattered and uniformly mixed in the process of pouring the shrink film raw materials, and the scattered and uniformly mixed shrink film raw materials are further uniformly distributed in the heating bin body under the centrifugal action, so that the problem of non-uniform distribution of the raw materials is avoided; therefore, the molten shrink film raw materials are longitudinally scattered, and the molten shrink film raw materials are prevented from moving along with the stirring blades, so that the material mixing effect is ensured.

The application belongs to the field of road and bridge construction, and particularly relates to a road paving device for municipal road and bridge construction, which comprises two track beams symmetrically arranged on both sides of a road, a horizontal plate arranged on the two track beams, and walking wheel sets arranged on the bottom of the horizontal plate and matched with the track beams; a steering shaft is arranged at the front end of the horizontal plate, a paving plate is fixed to the lower end of the steering shaft, the paving plate is spliced by a flow dividing plate and two smearing plates fixed to the two sides of the flow dividing plate, the middle part of the flow dividing plate is in a forwardly arched conical structure, a fixing shaft is rotatably connected to the horizontal plate, and the paving plate is in transmission connection with the fixing shaft through a gear transmission assembly; when the concrete accumulation amount at the front end of the two smearing plates is different, the application can automatically adjust and evenly divide the concrete in the middle of the road, ensure the flatness of the road, and control the rake teeth to automatically avoid the stones in the concrete, so that the stones are evenly distributed in the concrete.

The utility model relates to the field of flower planting, in particular to a root induction type grafting cultivation tank which comprises a tank body, the tank body is provided with a grafting fixing area located on the upper layer and a root induction area located on the lower layer, the grafting fixing area is provided with a height-adjustable grafting fixing frame and a grafting clamp, and the grafting fixing frame and the grafting clamp are detachably connected through a magnetic locking assembly. A movable partition plate capable of moving is arranged in the root system inducing area to adjust the size of the planting space, the movable partition plate is matched with a guide rod through an adjusting screw rod to move, an inclined root guide plate is further arranged, dense protrusions are arranged on the inner surface, and air holes are formed in the bottom of the groove body. The technical effects that the plant grafting part can be effectively fixed, the planting space can be adjusted to control directional growth of the root system, the grafting clamp is convenient to mount and dismount, and root system development and ventilation are promoted are achieved.

The utility model discloses a polyester filament fiber spinning oiling device, which belongs to the technical field of fiber spinning, comprises a base assembly, and is characterized in that all parts of the oiling assembly are matched with one another, so that the oiling assembly can be used for oiling the polyester filament fiber. Compared with a traditional single-side or local oiling mode, the multi-direction wrapping oiling device can achieve multi-direction wrapping oiling and enable an oiling agent to cover the surfaces of filament fibers more evenly, compared with the traditional single-side or local oiling mode, the situation that the oiling agent is not distributed evenly can be avoided, it is guaranteed that each fiber can be fully and evenly oiled, and therefore the consistency of product quality is improved, and production efficiency is improved. Uniform oiling agent wrapping helps to improve various properties of the fibers, for example, smoothness, softness, antistatic property and the like of the fibers can be better improved, through mutual cooperation of all parts of the oiling assembly, the distance between the multiple oiling cylinders can be adjusted according to the thickness of fiber spinning, the practicability is further improved, and the application range of the oiling assembly is widened. Therefore, the spinning of fibers with different thicknesses is realized.

The utility model relates to a manifold for laminar cooling manifold belongs to strip steel processing technical field. Manifold sets up between control valve group, manifold, manifold includes inlet pipe, water equalizing pipe, branch pipe, and cooling water passes through inlet pipe and enters manifold, and cooling water is close to even distribution to manifold. The water equalizing pipe is equipped with sieve plate, and the sieve plate disperses the water flow of inlet pipe to each branch pipe. The flow velocity in inlet pipe and branch pipe is less than or equal to 2 m / s, the cross section area of water equalizing pipe is at least 2 times of the cross section area of inlet pipe, the sieve hole area sum is at least 2 times of the cross section area of inlet pipe, the sieve hole and branch pipe hole are arranged in dislocation, when inlet pipe and branch pipe are opposite, the sieve plate does not have hole in the area of 1.5 times of inlet pipe. The position of cooling water inlet pipe of this manifold on water equalizing pipe is adjusted, and the water output of each branch pipe is still consistent, so that cooling water is evenly distributed to each manifold, and the cooling effect is improved.

The utility model discloses a high-precision metal etching processing device, including the device box, the both sides inner wall top of device box all has opened the chute, the movable clamping of chute has the slide, the fixed mounting of slideboard between has the placing plate, the movable placing metal piece in placing plate, the both sides installation of placing plate has the adjusting mechanism, the device box of chute below installs the mixing mechanism, and the metal piece is placed on the placing plate, and the metal piece is pressed tightly through the adjusting mechanism, and the area of the same etching degree is exposed, and the rest part is shielded, and the metal piece is put into the device box downwards, and the slide of slide groove is clamped, and the corrosion liquid in the device box carries out the corrosion to the exposed area, and the mixing mechanism stirs the corrosion liquid and makes it always even, and the etching area is brushed, avoids the residue and remains in the metal piece, guarantees the etching to be sufficient, like this, adjusts the exposed area to can etch out the different depth font and pattern.

The application provides a cold demand determination method, a cold demand allocation method, a cold demand determination system and a cold demand allocation architecture. The maximum charging cold demand, i.e. the first cold demand, of a power battery is determined according to the initial state and the final state of the power battery and the first charging rate, i.e. the theoretical average charging rate of the power battery during the charging process. The first coefficient is determined according to the first charging rate, the second charging rate, i.e. the actual charging rate of the power battery during the charging process, the third charging rate, i.e. the theoretical charging rate of the power battery in different states, and the ratio of the second charging rate duration to the total charging time. Finally, the actual cold demand, i.e. the second cold demand, of the power battery during the charging process is determined according to the first coefficient and the first cold demand. The sum of the second cold demand and the actual refrigeration demand, i.e. the first refrigeration demand, of the passenger cabin is compared with the refrigeration capacity, i.e. the first refrigeration capacity, of the refrigeration system, and the cold is allocated to the power battery and the passenger cabin according to the comparison result.

The utility model provides a sectional type big temperature difference water source heat pump unit relates to heat pump unit technical field, including heat pump module, heat pump module includes first stage heat pump unit and second stage heat pump unit, and each stage heat pump module is equipped with cold water inlet and hot water inlet, and cold water inlet and hot water inlet all are connected to external water source pipeline through mechanical valve group, and mechanical valve group contains series connection mode interface and parallel mode interface, and through manual operation switches waterway series connection topology structure. The utility model has realized through the cold water inlet, hot water inlet of each stage heat pump module through mechanical valve group connection, and contains series connection and parallel interface and switches waterway through valve handle operation, and when series connection, low temperature water source flows through multistage evaporator and gradually reduces temperature, and when parallel, high temperature water source shunts to each stage evaporator, adapts small temperature difference demand, reaches the effect of improving application range, increases energy efficiency.

The application discloses a kind of gas storage cavern sealing structure laying system, laying method and sealing assembly, system includes travelling main body;Inflating equipment, is fixed on travelling main body, to make sealing structure inflation;Conveying device, it is set on travelling main body, and located inflating equipment side;Spraying device, it is oppositely set with travelling main body, and is connected with conveying device, spraying device is used to spray adhesive medium to sealing structure;Piercing assembly, for annular structure, is connected to the end of travelling main body close to spraying device, for puncturing sealing structure;Pressing device, it is placed on travelling main body, and located inflating equipment and conveying device above, for after puncturing sealing structure pressing.It avoids the problem of uneven spraying thickness caused by manual operation difference, uniform distribution of adhesive medium, so that the sealing layer has consistent strength and sealing performance at different positions, improves the sealing quality, effectively prevents gas leakage, and guarantees the gas tightness of gas storage cavern.