334 results about "Device chamber" patented technology

A heat pump system for a vehicle includes: a valve, an electrical component cooling device, a battery cooling device, an indoor heating device, an indoor cooling device, a centralized energy device, and a chiller, wherein the second line is selectively fluidically-connectable to the first line connected to the radiator through the second valve; a condenser included in the centralized energy device is selectively fluidically-connectable to the first line or the second line through a third valve to condense the refrigerant supplied through the refrigerant line through heat-exchange with a coolant provided in a sixth line through which a coolant flows; and a first end portion of the third line is selectively fluidically-connectable to the sixth line through a fourth valve provided in the sixth line.

An upper revolving structure (4) of an electric hydraulic excavator (1) includes a revolving frame (7), an operator's seat (10), an electric motor (15), a hydraulic pump (17) driven by the electric motor (15), an oil tank (18), and an exterior cover (20) disposed in the revolving frame (7) to cover electrical equipment including the electric motor (15) and hydraulic equipment including the hydraulic pump (17) and the oil tank (18). A partitioning member (25) that is disposed in the revolving frame (7) to partition an inside of the exterior cover (20) into an electrical equipment room (28) and a hydraulic equipment room (29). An electrical equipment cooling device (31) including an electrical equipment cooling fan (34) is disposed in the electrical equipment room (28), and a hydraulic equipment cooling device (35) including a hydraulic equipment cooling fan (37) is disposed in the hydraulic equipment room (29).

The invention discloses a four-way valve assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, and relates to the technical field of heating and ventilation equipment. The four-way valve assembly comprises a valve body, a plurality of electric appliance parts and a switching part, the plurality of electric appliance parts are in telecommunication connection with the switching part through a first line, and then the switching part is in telecommunication connection with the control device through a second line, so that telecommunication connection between the plurality of electric appliance parts and the control device is achieved. Compared with an original mode that a plurality of electric appliance parts are in one-to-one telecommunication connection with the control device through a plurality of circuits, the complexity of the circuits can be reduced, so that the internal space of a machine body of the outdoor unit of the heating and ventilation equipment is saved, and the size and the production cost of the machine body are reduced.

The utility model discloses a four-way valve assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, and relates to the technical field of heating and ventilation equipment. The four-way valve assembly comprises a valve body and a filtering device, the valve body comprises a main valve pipe and a first pipe joint, a second pipe joint and a third pipe joint which are connected to the main valve pipe, the first pipe joint is used for communicating with an exhaust port of the compressor, the second pipe joint is used for communicating with an air return port of the compressor, and the third pipe joint is used for communicating with the heat exchanger; the filtering device is installed on the third pipe connector and used for filtering the refrigerant flowing through the third pipe connector. The filtering device is directly installed on the third pipe connector, so that the filtering device can filter a refrigerant flowing through the third pipe connector, a middle pipeline between the filtering device and the third pipe connector is omitted, and therefore the machine body structure of the outdoor unit of the heating and ventilation equipment can be simplified to a certain degree, and the overall size of the machine body is reduced; and a certain production and manufacturing cost can be reduced.

The embodiment of the utility model provides a partition plate circular polarizer and a transceiver all-in-one machine, the partition plate circular polarizer comprises a connector, a device chamber serving as a transmission channel is arranged in the connector, a first end of the device chamber is used for forming a square waveguide and transmitting electromagnetic waves, and a second end of the device chamber is used for forming a second waveguide; a first triangular inclined block and a second triangular inclined block are arranged at the first end of the device cavity; the utility model relates to the technical field of feed sources, solves the problem that the application requirements of a transceiver all-in-one machine are difficult to meet due to the fact that the circular polarization axial ratio characteristic of a circular polarizer in the related technology is poor, and can realize the separation of left-handed and right-handed dual circular polarization without additionally arranging an orthogonal mode coupler, thereby improving the transmission efficiency of the transceiver all-in-one machine and improving the transmission efficiency of the transceiver all-in-one machine. And the relative bandwidth is relatively wide, the requirements of the transceiver on broadband and low axial ratio can be met, and the polarizer has relatively good axial ratio characteristic.

The invention relates to the technical field of dust combustion, and provides a dust explosion combustion experiment device in order to solve the problems that an existing dust explosion combustion experiment device is insufficient in parameter control precision, and an experiment multi-focus single variable lacks a dust removing mechanism and a safety protection measure, and the dust explosion combustion experiment device comprises an experiment table which is provided with a power chamber and an equipment chamber; one side of the experiment table is hinged with an access door, two sides of the top of the experiment table are provided with conveying main pipes extending to the equipment chamber, a power supply assembly is arranged in the electric power chamber; the protective shell assembly comprises an outer shell and an inner shell; a plurality of exhaust pipes are arranged at the top of the inner shell; the dust generation assembly comprises a plurality of dust storage tanks and an air compressor; the ignition control assembly comprises a pulse igniter, a flame detection feedback circuit and an ignition head; the environment adjusting assembly comprises a box body, an oxygen tank and a humidifier, wherein the oxygen tank and the humidifier are arranged in the box body. The device has the advantages that the dust concentration is accurately regulated and controlled, the environmental parameters are dynamically coupled and controlled, dust residues are rapidly removed, and the experiment safety is high.

An energy storage apparatus includes: a box. The box includes: a battery compartment and a device compartment. The battery compartment is provided with a separation portion. The separation portion divides the battery compartment into an upper compartment and a lower compartment. The separation portion is provided with a communication hole. The communication hole is in communication with the upper compartment and the lower compartment. The device compartment is provided with an air conditioner. A first side wall is provided between the battery compartment and the device compartment. The first side wall is provided with an inlet and an outlet. One of the inlet and the outlet is in communication with the upper compartment, and the other is in communication with the lower compartment. Baffles are provided at the inlet and the outlet. The baffles are capable of opening or closing the inlet and the outlet.

The invention relates to the technical field of heating and ventilation equipment, and discloses an electric control heat dissipation structure, a heating and ventilation equipment outdoor unit and heating and ventilation equipment.The electric control heat dissipation structure comprises a shell, a heat dissipation assembly and an electric control, a maintenance opening is formed in one side wall of the shell, the heat dissipation assembly is installed in the shell and faces the maintenance opening, and the electric control is installed in the shell and faces the maintenance opening; the electric control part is arranged in the maintenance opening and located between the maintenance opening and the heat dissipation assembly, a first connecting structure is arranged between the electric control part and the heat dissipation assembly, the first connecting structure comprises a first connecting part, and one end face of the first connecting part faces the maintenance opening and is used for connecting the electric control part and the heat dissipation assembly. According to the electric control heat dissipation structure, the electric control piece is arranged between the maintenance opening and the heat dissipation assembly, the electric control assembly is installed in front of the heat dissipation assembly and is closer to the maintenance opening, and when the electric control piece is installed, the electric control piece and the heat dissipation assembly are connected through the first connecting piece in the direction of the maintenance opening; and the electric control assembly is convenient to disassemble, assemble and maintain.

The utility model discloses a four-way valve assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, and relates to the technical field of heating and ventilation equipment. The four-way valve assembly comprises a valve body, a plurality of electric appliance parts and a switching part, the plurality of electric appliance parts are in telecommunication connection with the switching part through a first line, and then the switching part is in telecommunication connection with the control device through a second line, so that telecommunication connection between the plurality of electric appliance parts and the control device is achieved. Compared with an original mode that a plurality of electric appliance parts are in one-to-one telecommunication connection with the control device through a plurality of circuits, the complexity of the circuits can be reduced, so that the internal space of a machine body of the outdoor unit of the heating and ventilation equipment is saved, and the size and the production cost of the machine body are reduced.

The invention relates to the technical field of oil field fracturing operation, in particular to dry powder continuous mixing equipment which comprises a dry powder storage device and a dry powder mixing device. The fracturing fluid mixing device comprises an equipment chamber, the equipment chamber comprises a lifting and distributing system, the lifting and distributing system comprises a first liquid inlet pipeline, a liquid inlet pump and a first liquid feeding pipeline which are communicated in sequence, and the liquid inlet pump pumps liquid in the first liquid inlet pipeline to a dry powder mixing system located at a higher position through the first liquid feeding pipeline; the dry powder mixing system comprises a first mixer and a first separator which are detachably arranged in sequence, and negative pressure is formed in the first mixer and used for mixing dry powder and liquid to form a first mixed solution. With the adoption of the technical scheme, the mixer and the separator in the dry powder mixing system are detachably arranged, so that the fracturing fluid mixing effect can be ensured, and meanwhile, the maintenance and the transportation of equipment are more convenient.

The utility model relates to the technical field of heating and ventilation equipment, and discloses a refrigerant heat dissipation assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, the refrigerant heat dissipation assembly comprises a radiator, a pressing plate and a refrigerant heat dissipation pipe, the radiator is provided with a positioning part, the pressing plate is connected with the radiator and provided with a positioning matching part, and the positioning matching part is matched with the positioning matching part. The positioning matching part and the positioning part are connected in a positioning mode and are in guide fit in the connecting process, and the refrigerant radiating pipe is located between the radiator and the pressing plate and pressed on the outer surface of the radiator by the pressing plate. According to the refrigerant heat dissipation assembly, the refrigerant heat dissipation pipe is tightly pressed on the heat dissipation device through the pressing plate, the positioning part is arranged on the heat dissipation device, the positioning matching part matched with the positioning part is arranged on the pressing plate, accurate pre-positioning is conducted on connection of the pressing plate and the heat dissipation device through the positioning part and the positioning matching part, assembling is convenient, and the working efficiency is improved. And meanwhile, shaking of the radiator, the pressing plate and the refrigerant radiating pipe is reduced, so that the whole radiating assembly is kept stable, the radiating efficiency is improved, and the working stability of the electric control component is ensured.

The utility model relates to the technical field of plastic pipe machining, in particular to a plastic pipe machining device which comprises a machine body, a movable cushion block is arranged on the machine body, an equipment chamber is fixedly installed on the machine body, and an upper guide groove and a lower guide groove are formed in the equipment chamber respectively. The upper guide groove and the lower guide groove are slidably sleeved with a left limiting block and a right limiting block respectively, the left limiting block and the right limiting block are fixedly connected with driven racks respectively, and the left limiting block and the right limiting block clamp and limit one end of a pipe through relative movement of the two driven racks. The driving gear is driven by the driving shaft to rotate, the left limiting block and the right limiting block move relatively due to the fact that the driving gear is in meshing transmission with the two driven racks, the distance between the left limiting block and the right limiting block is adjusted, and therefore pipes of different sizes can be clamped and limited conveniently; and the application range of the left limiting block and the right limiting block is widened.

The utility model relates to a jackfruit preservation device which comprises a box body, a first partition plate is arranged in the box body, and the interior of the box body is divided into a storage cavity and a refrigeration cavity through the first partition plate; a second partition plate is arranged in the refrigeration cavity, the refrigeration cavity is divided into an ice containing cavity and a device cavity through the second partition plate, an ice containing frame is slidably connected into the ice containing cavity, and a semiconductor chilling plate is installed on the inner wall of the device cavity; a temperature sensor is installed in the storage cavity, a control panel is arranged on the outer side of the box body, and the temperature sensor and the semiconductor chilling plate are both electrically connected with the control panel. According to the technical scheme, ice blocks or ice bags are placed in the ice containing cavity, cold air of the ice blocks or the ice bags enters the storage cavity for refrigeration, at the moment, the temperature value K1 in the storage cavity monitored by the temperature sensor is the normal jackfruit storage temperature, the temperature in the storage cavity gradually rises after the ice blocks are melted, and when the temperature value monitored by the temperature sensor reaches K2, the jackfruit is stored in the storage cavity. The control panel is triggered to start the semiconductor chilling plate, so that the preservation time of the jackfruit pulp is prolonged.

The utility model discloses a four-way valve assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, and relates to the technical field of heating and ventilation equipment. The four-way valve assembly comprises a four-way valve body and a first pressure detection piece, the four-way valve body comprises a main valve pipe and a first pipe connector, a second pipe connector, a third pipe connector and a fourth pipe connector which are connected to the main valve pipe, the first pipe connector is used for being connected with an exhaust port of the compressor, and the second pipe connector is used for being connected with an air return port of the compressor; the first pressure detection piece is directly installed on the first pipe joint and communicated with the first pipe joint, and the first pressure detection piece is used for detecting pressure information in the first pipe joint. The first pressure detection piece is directly installed on the first pipe connector, a middle pipeline for connecting the first pressure detection piece and the four-way valve body is omitted, and therefore the machine body structure of the outdoor unit of the heating and ventilation equipment can be simplified to a certain degree, the overall size of the machine body can be reduced, and certain production and manufacturing cost can also be reduced.

The utility model provides an outdoor unit and heating and ventilation equipment. The outdoor unit comprises a machine shell, an air inlet and an air outlet, wherein a containing cavity is formed in the machine shell; the partition piece is arranged in the containing cavity so as to divide the containing cavity into a fan cavity and a compressor cavity; the circuit board is arranged in the compressor cavity and connected with the partition piece, and the machine shell is further provided with a first ventilation opening communicated with the compressor cavity; and the first filter screen covers the first ventilation opening. According to the outdoor unit, the circuit board is directly arranged in the compressor cavity and fixedly connected to the partition piece, and therefore a circuit box for conducting heat dissipation and insect prevention on the circuit board does not need to be additionally arranged. The machine shell is further provided with a first ventilation opening communicating with the compressor cavity, and the first filter screen covers the first ventilation opening. Therefore, heat dissipation and insect prevention of the circuit board can be ensured, the cost of the whole machine is reduced, and the assembly process of the whole machine is simplified.

The invention discloses a nuclear plant equipment room integral equipment module which comprises a framework, various equipment required by an equipment room and various pipelines required by the equipment room, and the various equipment and the various pipelines are prefabricated and installed on the framework to form an integral equipment module serving as a movable installation whole. And the integral equipment module is connected with the inner surface of the equipment room through a framework on the construction site of the equipment room. According to the overall equipment module, an original on-site installation structure is replaced with a modular installation structure, the indoor space and equipment layout are reasonably planned, meanwhile, the number of embedded parts and holes of an equipment room is greatly reduced, the influence of construction of the embedded parts and the holes on the wall faces of the equipment room is effectively reduced, and high-quality, high-efficiency and low-cost design and construction of the equipment room are guaranteed. The invention further provides a modularized installation method for the whole equipment of the equipment room of the nuclear plant.

An example compute cabinet assembly includes an equipment room configured to implement electrical components therein, an air inlet channel coupled to a first side of the equipment room, and a cabinet fan module coupled to a second side of the equipment room opposite the first side. A first air outlet channel is coupled to the cabinet fan module and extends along a third side of the equipment room towards a first outlet of the first air outlet channel. Moreover, electric fans are positioned in the cabinet fan module, the electric fans being configured to create an airflow path originating at an inlet of the air inlet channel. The airflow path further extends through the equipment room and cabinet fan module. A guide plate is also positioned adjacent to an inlet of the equipment room, the guide plate being configured to uniformly distribute the airflow path through the equipment room.

The utility model discloses a high-voltage fixed switch cabinet, which belongs to the technical field of electrical equipment and comprises a circuit breaker chamber and a cable chamber, a horizontal support is arranged between the circuit breaker chamber and the cable chamber, a lightning arrester is arranged on one side, far away from the circuit breaker chamber, of the horizontal support, and the lightning arrester is horizontally arranged on the horizontal support. The horizontal support is used for installing and supporting part of components, the lightning arrester is arranged on the horizontal support, so that the wiring mode in the cabinet body of the switch cabinet can be simplified to the greatest extent, the positions among other components are relatively concentrated, and the lightning arrester is generally located at the bottom of a cable chamber and is farthest from the other components, so that the wiring mode is simplified; according to the scheme, the position of the lightning arrester is reasonably changed, so that the wiring difficulty in the whole switch cabinet body is reduced, and the wiring mode is simplified.

The utility model discloses a four-way valve assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, and relates to the technical field of heating and ventilation equipment. The four-way valve assembly comprises a four-way valve body and a first pressure detection device, the four-way valve body comprises a main valve pipe and a first pipe joint connected to the main valve pipe, and a one-way valve is arranged at the end, away from the main valve pipe, of the first pipe joint; the first pressure detection device is directly installed on the first pipe joint and communicated with the first pipe joint, and the first pressure detection device is used for detecting pressure information in the first pipe joint. The first pressure detection device is directly installed on the first pipe connector, a middle pipeline connecting the first pressure detection device and the first pipe connector is omitted, meanwhile, the one-way valve is integrated on the first pipe connector, a middle pipeline connecting the one-way valve and the first pipe connector is omitted, and therefore the machine body structure can be simplified to a certain degree, and the cost is reduced. The overall size of the machine body is reduced, and certain production and manufacturing cost can be reduced.

The invention relates to cleaning equipment which comprises a base, a cleaning shell and a washing inner container, and the cleaning shell comprises a first shell body installed on the base and a second shell body detachably connected to the first shell body; the washing inner container is installed in the first shell, and a washing inner cavity is formed between the washing inner container and the second shell. Wherein the first shell is provided with an equipment chamber extending upwards, the equipment chamber and the first shell are integrally formed, an equipment inner cavity communicated with the mounting inner cavity is formed in the equipment chamber, and a drying assembly and / or an upper spraying assembly are / is arranged in the equipment inner cavity; the second shell comprises a cover body and a side shell, the bottom of the side shell is connected to the first shell, the side, facing the equipment chamber, of the side shell is of an opening structure, and the cover body is arranged at the top of the side shell; the equipment chamber is isolated from the washing inner cavity, washing water is prevented from making contact with working parts, the running stability and safety of all the parts in the washing process can be improved, the failure rate is reduced, and the service life of the parts is prolonged.

The utility model relates to the technical field of power battery testing, in particular to a battery integration testing system. Comprising an upper computer and a battery integration test cabinet. The battery integration test cabinet comprises a cabinet body, a temperature adjusting device, an expansive force acquisition device, an overload test device and a middle computer. An equipment chamber and a plurality of test chambers are formed in the cabinet body, and the temperature adjusting equipment, the expansive force collecting equipment and the overload test equipment are all installed in the equipment chamber; the upper computer is in communication connection with the middle computer, and the middle computer is in communication connection with the temperature adjusting device, the expansive force collecting device and the overload testing device. According to the utility model, the battery testing efficiency is improved.

The utility model relates to an emergency house body and an emergency cabin based on a container. The emergency house body based on the container comprises a box body, a partition assembly, a function room door and a box door assembly, the box body is provided with a cavity, one side of the cavity in the first direction is open, the partition assembly is arranged in the cavity, the partition assembly divides the cavity into an equipment room and a function room in the first direction, and the box door assembly is arranged in the box body. The box body is provided with a cavity, the equipment chamber is adjacent to the open side of the cavity, the box body is provided with an entrance and exit in the function chamber, the function chamber door is arranged on the box body corresponding to the entrance and exit, and the box door assembly is arranged on the open side of the box body to seal the cavity. The emergency house body based on the container is provided with the equipment chamber and the function chamber which are separated, partition with different functions is achieved, comfort of personnel in the function chamber is improved, various needed equipment can be installed, the emergency cabin has multiple functions, and the life requirements of the personnel in multiple aspects are met.

The invention discloses a hydrogen-related closed cabin for a fuel cell, and relates to the technical field of hydrogen-related closed cabins, the hydrogen-related closed cabin comprises a cabin body, the cabin body comprises a closed chamber and an equipment chamber, and the closed chamber is internally provided with a fresh air inlet system, a temperature and humidity adjusting system, a hydrogen concentration monitoring system and a data acquisition monitoring system; the side wall of the cabin body is provided with a through edge groove communicated with the equipment chamber, the inner wall of the through edge groove is fixedly connected with a frame, the frame is provided with a plurality of evenly distributed blocking channels, the two sides of the frame are provided with an external box and an internal box in an attached mode respectively, and the external box and the internal box move synchronously and are matched with the blocking channels in a switching mode. According to the hydrogen-related closed cabin for the fuel cell, by arranging the structures such as the blocking channel, the external box and the internal box, impurity cleaning and ventilation and heat dissipation are not influenced mutually, meanwhile, blocking blowing and sucking are carried out synchronously, the filter screen can shake, and the use efficiency of the hydrogen-related closed cabin is improved.

The utility model discloses a four-way valve assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, and relates to the technical field of heating and ventilation equipment. The four-way valve assembly comprises a valve body and a first temperature detection device, the valve body comprises a main valve pipe and a first pipe joint and a second pipe joint which are connected to the main valve pipe, one of the first pipe joint and the second pipe joint is used for communicating with an exhaust port of the compressor, and the other one of the first pipe joint and the second pipe joint is used for communicating with an air return port of the compressor; the first temperature detection device is installed on the first pipe joint and used for detecting the temperature of the first pipe joint. The first temperature detection device is directly installed on the first pipe connector, a middle pipeline between the first temperature detection device and the first pipe connector is omitted, and therefore the machine body structure of the outdoor unit of the heating and ventilation equipment can be simplified to a certain degree, the overall size of the machine body can be reduced, and certain production and manufacturing cost can also be reduced. In addition, the first temperature detection device can directly detect the temperature of the first pipe joint, the detection is more visual, and the accuracy is higher.

The utility model discloses a four-way valve, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, and relates to the technical field of heating and ventilation equipment. The four-way valve comprises a valve body, a first pipe connector and a second pipe connector, the first pipe connector comprises a main pipe section and a one-way valve pipe section which are communicated, the main pipe section is located between the valve body and the one-way valve pipe section and connected and communicated with the valve body, and an air inlet is formed in the end, away from the main pipe section, of the one-way valve pipe section and used for being connected with an exhaust port of the compressor. A valve element is arranged in the one-way valve pipe section and used for opening and closing communication between the air inlet and the main pipe section. One end of the second pipe joint is connected and communicated with the valve body, and the other end is connected with an air return port of the compressor. The one-way valve is directly integrated on the first pipe joint, and a middle structure for connecting the one-way valve and the four-way valve body is omitted, so that the structure of a machine body can be simplified to a certain extent, the overall size of the machine body is reduced, and certain production and manufacturing cost can be reduced.

The invention belongs to the technical field of heating and ventilation equipment, and particularly relates to an outdoor unit assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment. The outdoor unit assembly is used for the heating and ventilation equipment and comprises a refrigerant system, a heat exchange system and a heat exchange system, the tank body is communicated with the compressor exhaust port or the compressor air return port through a refrigerant pipeline; and the at least one functional part is mounted on the tank body and comprises at least one of a pressure sensor, a temperature sensor, a pressure switch and a valve body. According to the technical scheme, the at least one functional component is integrally arranged on the tank body, and one or more functions are achieved, so that the size of the outdoor unit assembly can be reduced, the use amount of pipelines of the outdoor unit assembly can be reduced, and therefore the cost can be reduced.

The invention relates to the field of power equipment, in particular to an anti-electric-shock high-voltage outgoing line cabinet which is characterized in that an equipment chamber is arranged in a cabinet body, drying chambers are arranged in the cabinet body on the left side and the right side of the equipment chamber respectively, and horizontally-arranged transverse partition plates are fixedly installed in the drying chambers; a plurality of outer barrels which are vertically and uniformly arranged at intervals are fixedly installed in the drying chamber located below the transverse partition plate, filler barrels driven by a power device to rotate are arranged in the outer barrels, air holes are formed in the two opposite sides of the peripheral wall of each filler barrel, and a moisture absorption air inlet and a moisture absorption air outlet are formed in the two horizontal opposite sides of the peripheral wall of each outer barrel; a drying air inlet and a drying air outlet are respectively formed in the top and the bottom of the outer barrel; the packing barrels are rotated, the air holes in the two opposite sides are aligned with the drying air inlet and the drying air outlet correspondingly, hot air in the equipment chamber sequentially flows through the multiple packing barrels from top to bottom, the drying agent in the packing barrels is dried and dehydrated through the hot air, and repeated utilization of the drying agent is achieved.

The utility model discloses a heating and ventilation equipment outdoor unit and heating and ventilation equipment, and relates to the technical field of heating and ventilation equipment. The heating and ventilation equipment outdoor unit comprises a shell, a heat exchanger assembly, an air guide ring, a support and a fan assembly, an air outlet is formed in the top of the shell; the air guide ring is located between the heat exchanger assembly and the air outlet and provided with an air inlet side facing the heat exchanger assembly and an air outlet side facing the air outlet. The bracket is mounted between the air outlet and the air outlet side; the fan assembly is located in the air guide ring and installed on the support. The support is arranged between the air outlet and the air outlet side, and the air outlet is directly communicated with the outside, so that disturbance of the support to airflow at the air outlet is small, air outlet is not affected, meanwhile, the possibility that the support disturbs airflow at the air inlet side of the air guide ring can be reduced or even eliminated, and the service life of the air guide ring is prolonged. Therefore, the stability and the flowing speed of airflow on the air inlet side of the air guide ring are improved.

The present invention relates to a method for simplifying the overall critical safety analysis of a pipeline equipment room, belonging to the technical field of nuclear critical safety analysis, and includes the following steps: screening all pipelines in the equipment room to be analyzed according to the medium in the pipeline, screening out the pipelines containing fissile material solution as effective pipelines, and calculating the total volume of the liquid material in the effective pipelines; establishing a simplified tube bundle model, with all pipelines arranged closely according to the minimum layout spacing; keeping the total volume of the liquid material in the tube bundle model unchanged, changing the number and height of the tube bundle models to obtain the tube bundle size with the maximum reactivity of the simplified tube bundle model; placing the simplified tube bundle model with the maximum reactivity closely beside the equipment with the maximum reactivity in the equipment room and arranging them closely in the way with the maximum interaction. The method provided by the present invention is much simpler than the process of establishing pipelines one by one in detail, improves the calculation and analysis efficiency, and avoids the problem that the calculation result exceeds the critical safety acceptance criterion due to the simple aggregation of the pipeline liquid material being overly conservative.

The utility model relates to the technical field of heating and ventilation equipment, and discloses an electric control assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, the electric control assembly comprises a circuit board, a power device and a radiator, the circuit board is provided with a first surface and a second surface which are oppositely arranged, the first surface is used for arranging a non-power device, and the power device is arranged on the second surface; the radiator is arranged on the second face, the power device is arranged between the circuit board and the radiator, and the heat dissipation piece is used for dissipating heat of the power device. According to the electric control assembly, the power device and the radiator are arranged on the second surface of the circuit board, when the circuit board is disassembled, operation can be carried out from one side of the first surface opposite to the second surface, and no obstruction of the radiator exists, so that the circuit board is convenient to disassemble, and the disassembly efficiency is improved.