67results about "Steam central heating" patented technology

The system comprises a power generation system and a heat supply system, the power generation system comprises a boiler, a carbon dioxide turbine, a heat regenerator, a precooler, a compressor and a motor generator, an outlet of the boiler is connected with an inlet of the turbine, an outlet of the turbine is connected with a hot side inlet of the heat regenerator, and an outlet of the compressor is connected with a hot side inlet of the precooler. An outlet of the precooler is connected with an inlet of the compressor, an outlet of the compressor is connected with a cold-side inlet of the heat regenerator, a cold-side outlet of the heat regenerator is connected with an inlet of the boiler, and the compressor and the turbine are respectively connected with the motor generator. The heat supply requirement can be met, complete thermoelectric decoupling is achieved, and the flexibility of the supercritical carbon dioxide cycle generator set is fully exerted while stable heat supply is achieved.

An air source heat pump and steam boiler combined heat supply system comprises a water treatment system, an air source heat pump, a deaerator, a steam boiler and an induced draft fan, the water treatment system used for desalting and softening water is connected with the water inlet end of the air source heat pump, and the water outlet end of the air source heat pump is connected with the water inlet end of the steam boiler through the deaerator. The air outlet end of the steam boiler is connected with the air inlet end of the air source heat pump. The heat supply system is simple in structure, convenient to operate, flexible and practical, the air source heat pump is embedded in an existing mature steam boiler heat supply system, the waste heat of the smoke at the tail of the steam boiler is further recycled, the overall heat efficiency of the heat supply system is improved, and the heat supply cost is reduced.

The utility model discloses a pressure relief protection device of a steam heat supply system, which relates to the technical field of pressure relief protection devices and comprises a steam safety valve, one end of the steam safety valve is connected with a guide pipe, and the other end of the guide pipe is connected with a collecting box. The surface of the guide pipe is connected with a first semicircular pipe and a second semicircular pipe, and a pressure sensor is installed at the top end of the first semicircular pipe. The bottom end of the first semicircular pipe is connected with a clamping block. According to the utility model, the conduit can be wrapped by the first semicircular pipe and the second semicircular pipe which are arranged on the surface of the conduit, and meanwhile, whether the conduit leaks or not can be monitored by the pressure sensor arranged on the first semicircular pipe, so that the damage to the surrounding environment or personnel caused by leakage due to long-time use of the conduit is avoided; and meanwhile, steam can be condensed into water and collected through steam condensing equipment arranged in the collecting box, so that the influence of the steam on the surrounding environment is reduced.

The application provides a novel steam pipeline temperature and pressure increasing system, which meets the steam parameter requirements of each user in a district and realizes precise steam supply without increasing the temperature and pressure parameters of the steam supply pipeline outlet of a heat source point as a whole. The system comprises a steam supply pipeline; temperature and pressure increasing assemblies are arranged along the steam supply pipeline; the pipeline of each temperature and pressure increasing assembly comprises a steam bypass pipeline, a steam pressure reducing pipe and a steam mixed supply pipe which are arranged along the steam supply pipeline in sequence; a length direction interval is left between the steam bypass pipeline and the steam pressure reducing pipe and between the steam pressure reducing pipe and the steam mixed supply pipe; each temperature and pressure increasing assembly further comprises a heat exchanger, a steam collecting tank, a steam storage tank, a piston and a boiler.

The invention relates to the technical field of automation control, in particular to a control method, device, equipment and medium of a steam regenerative coupling heat supply system.The method comprises the steps that a first target pressure value of a heat supply main pipe and a second target pressure value of a steam main pipe are obtained; the first target pressure value and a first feedback pressure value of the heat supply mother pipe are input into a first controller, and the first controller outputs a first control quantity based on a corresponding target parameter; the first control quantity, the second target pressure value and a second feedback pressure value of the steam main pipe are input into a second controller, and the second controller outputs a second control quantity based on a corresponding target parameter; and controlling the steam pressure regulating valve according to the second control quantity. According to the method, cooperative stabilization of the pressure of the steam mother pipe and the heat supply mother pipe can be achieved, mutual influence of the pressure of the steam side and the heat supply side in the steam regenerative coupling system is avoided, and safe and stable operation of the induced draft fan is guaranteed.

The invention relates to the technical field of nuclear power, in particular to a heating system and a thermal load detection method of the heating system. The heating system comprises a circulation loop, a heat exchange loop and a detection loop, and the circulation loop is filled with a gaseous medium; the heat exchange loop comprises a heat exchanger, the heat exchanger is arranged on the downstream side of the circulation loop, the gaseous medium is configured to flow from the circulation loop to the heat exchange loop so that heat exchange of the gaseous medium can be achieved at the heat exchanger, and the gaseous medium is condensed into a liquid medium after heat exchange; the detection loop comprises a detection element, and the detection element is arranged on the downstream side of the heat exchanger and used for detecting the flow of the liquid medium. The detection method is used for detecting the heat load of the heating system. The detection method is accurate in detection of the thermal load of the heating system.

The invention discloses a multi-scene heat supply and thermoelectric decoupling system of an electrode steam boiler and a spherical tank and an operation method, belongs to the field of energy supply and conversion, and relates to the crossing field of heat energy storage, combined heat and power generation and power system flexibility adjustment technologies. The system achieves coupling of the electrode steam boiler and the spherical tank and deep fusion of the electrode steam boiler and the combined heat and power generation unit through cooperation of a water supply module, a steam preparation, storage and supply module and a heat supply network water heating module, a unit base load main supply and system dynamic supplementing and adjusting mode is formed, steam is efficiently prepared, stored and supplied, and industrial steam and livelihood heating are flexibly supplied. The problems that in the prior art, the heat storage cost is high, industrial heat consumption and livelihood heat consumption cannot be considered, heat supply under extreme working conditions is insufficient, the thermoelectric decoupling and peak regulation capacity is weak, and new energy consumption is poor can be solved, the heat supply capacity and reliability are improved, the thermoelectric decoupling and unit peak regulation capacity and operation stability (including flue gas emission compliance) are enhanced, the energy efficiency is improved, and the energy utilization rate is increased. New energy consumption is assisted, policy requirements are met, and remarkable economic and social benefits are achieved.

The invention discloses a double-reduction arrangement system for wide-area load adjustment of a heat supply pipe network and a using method of the double-reduction arrangement system. The double-reduction arrangement system comprises a high-pressure steam extraction module used for leading out high-pressure steam from reheating hot section outlets of two units respectively; the large-flow temperature and pressure reduction module is connected to the downstream of the high-pressure steam extraction module and used for reducing the high-pressure steam to low-pressure heat supply parameters; the bypass temperature and pressure reduction module and the large-flow temperature and pressure reduction module are connected to the downstream of the high-pressure steam extraction module in parallel, and the bypass temperature and pressure reduction module is used for providing small-flow stable heat supply under the low-load working condition; the large-flow channel and the bypass small-flow channel are connected to the downstream of the same high-pressure steam extraction module in parallel, continuous load adjustment is achieved, the problems of oscillation, scouring and overtemperature of the opening degree of a traditional single valve in a low-load area are solved, and the coverage of the large-flow channel is 50-300 t / h; the bypass small-flow channel covers 5-50 t / h, and the bypass small-flow channel and the bypass small-flow channel are connected in parallel and converged into the same heat supply header, so that a rated load continuous adjustable interval is formed, and the problem of night tilt is solved; and the problems of single valve oscillation, overtemperature and forced supply stop in the time period of 10 t / h are solved.

The embodiment of the invention provides a cooling and heat supply system for superheated steam and a control method of the cooling and heat supply system. The cooling and heat supply system comprises a heat source, a heat supply network heater, a cooling assembly, a detection assembly and a controller. The heat source is used for providing superheated steam. The heating network heater communicates with a heat source through a steam pipeline. And the cooling assembly is arranged between the heat source and the heating network heater, is used for cooling the superheated steam and comprises a control valve. The detection assembly is arranged between the cooling assembly and the heating network heater and used for detecting working parameters of the steam pipeline. The controller is connected with the detection assembly and the control valve, and the controller controls the operation parameters of the cooling assembly according to the working parameters so as to cool the superheated steam to saturated steam or slightly superheated steam.

The present application relates to the technical field of municipal heating, and particularly relates to a multi-system coupled molten salt heat storage system for municipal heating, which comprises a molten salt storage unit provided with nitrogen sealing pressure adjustment, a molten salt circulating and conveying unit in communication with the molten salt storage unit and used for realizing stable circulation of the molten salt, a molten salt and water heat exchange system which sequentially completes preheating, evaporation and superheating heat exchange along the molten salt flow direction and is provided with a steam-water separation structure, and an anti-condensation guarantee system respectively acting on the molten salt storage and conveying side and the heat exchange side, and a control system is used for uniformly and coordinately controlling the temperature, pressure and flow state of the molten salt in the storage, circulating conveying and heat exchange processes, so as to guarantee safe, continuous and efficient operation of the system. In the present application, the molten salt heat storage, steam-water heat exchange, anti-condensation guarantee and control system are coupled, and the control system is used for uniformly and coordinately controlling the operation state of the molten salt in the storage, conveying and heat exchange processes, so as to solve the problem of independent configuration and insufficient coordination of the traditional municipal heating system.

The application discloses a full-electricity-driven steam turbine exhaust heat supply system and method. The system comprises: a steam source extraction unit, the inlet of which is connected to the high-pressure cylinder exhaust pipeline of a steam turbine for steam extraction; an electric steam compressor unit, the inlet of which is connected to the outlet of the steam source extraction unit for steam pressure lifting to a target heat supply pressure; an electric heating temperature rising unit, the inlet of which is connected to the outlet of the electric steam compressor unit for steam temperature heating to a target heat supply temperature; an integrated control unit connected to the electric steam compressor unit and the electric heating temperature rising unit for coordinated control of the pressure and temperature of the steam; and a power supply adjusting unit connected to the electric steam compressor unit and the electric heating temperature rising unit for power supply and power distribution optimization. The application can realize full-electricity-driven steam supply and modularity, and completely decouples the rigid coupling between the heat supply system and the heat cycle of the power generation host.

The present application relates to a kind of nuclear energy cogeneration heat supply system, comprising: at least two nuclear energy heat supply device, each nuclear energy heat supply device includes intercommunication steam supply system and start separation system;Steam supply system provides steam, start separation system includes start separator, water removal system, steam interface, steam outlet and water removal interface;Start separator, water removal system intercommunication, steam interface connects steam supply system and start separator, steam outlet connects start separator and water removal system, water removal interface connects water removal system;And distribution system, steam outlet is connected to distribution system and load, water removal interface is connected to distribution system, and distribution system is connected to load, load is connected to steam supply system and water removal system, water removal system is connected to steam supply system.The steam of multiple nuclear energy heat supply device can be after gathering to the external heat supply load again supply, let heat supply be more uniform, and heat supply mode is various.

This utility model discloses a high-efficiency steam heating device, belonging to the field of steam heating technology. It includes an inlet pipe and a drain pipe installed on both sides of a heat dissipation chamber; mounting seats are provided inside the inlet and drain pipes, with an annular rotating groove inside the mounting seats; a rotating mechanism is movably installed between the inlet and drain pipes, with limiting protrusions on both sides of the rotating mechanism that cooperate with the rotating groove; multiple sets of slots are formed on the inner wall of the limiting protrusions, with positioning springs connected within the slots, and ball bearings at the outer ends of the positioning springs; grooves are formed on the inner wall of the grooves that cooperate with the ball bearings; the rotating mechanism includes multiple sets of branch pipes. This utility model can fully dissipate heat through the rotating mechanism, and the cooperation of the ball bearings and grooves allows the rotating mechanism to be rotated according to needs, thereby cooperating with a drying rack to dry clothes, thus making full use of heat energy. This design improves the stability and practicality of this energy-saving steam heating mechanism.

A steam system configured to heat water, the steam system comprising: a heat exchanger configured to receive steam and water, where the heat exchanger is configured to heat water with steam; a steam supply line configured to be connected to a steam source to supply steam to the heat exchanger; a condensate line configured to receive condensate from the condensed steam from the heat exchanger and to convey the condensate away from the heat exchanger; a water supply line configured to supply water to the heat exchanger; a water outlet line configured to receive the heated water from the heat exchanger and to deliver the heated water away from the heat exchanger; a steam valve disposed on the steam supply line and configured to control steam flow through the steam supply line; a condensate valve disposed on the condensate line and configured to control a flow of condensate through the condensate line; a first sensor disposed downstream of the steam valve and upstream of the condensate valve and configured to output a pressure signal indicative of a pressure in the steam system between the steam valve and the condensate valve, and / or a second sensor at the condensate outlet, a condensate temperature sensor configured to output a condensate temperature signal indicative of a temperature of condensate in a condensate line between the heat exchanger and the condensate valve; a third sensor disposed on the water outlet line and configured to output a water temperature signal indicative of a temperature of the hot water passing through the water outlet line; and a controller configured to control opening and closing of the steam valve and the condensate valve based on at least one of the pressure signal and the condensate temperature signal and the water temperature signal.

The invention provides a combined heat and power generation energy gradient utilization heat supply system based on low-pressure cylinder separation. The system comprises an intermediate-pressure cylinder, a first low-pressure cylinder section, a second low-pressure cylinder section, a first heat exchanger, a second heat exchanger, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline. The pipe sides of the first heat exchanger and the second heat exchanger are sequentially connected to a heating return water pipeline in series in the flowing direction of heating return water, an outlet of the medium-pressure cylinder communicates with an inlet of the first section of the low-pressure cylinder through the first pipeline, and an outlet of the medium-pressure cylinder communicates with an inlet of the second section of the low-pressure cylinder through the second pipeline. An outlet of the low-pressure cylinder section 1 is communicated with a shell side inlet of the first heat exchanger through a third pipeline, and an outlet of the medium-pressure cylinder is communicated with a shell side inlet of the second heat exchanger through a fourth pipeline. The system can solve the problems that in the prior art, combined heat and power generation efficiency and flexibility are difficult to consider, low-temperature waste heat utilization is insufficient, and system modification economy is poor.

The invention provides an efficient combined heat and power generation heat supply system adopting low-pressure steam cascade heating. The system comprises an intermediate-pressure cylinder, a low-pressure cylinder section 1, a low-pressure cylinder section 2, a first pipeline, a second pipeline, a condenser, an absorption heat pump and a heat exchanger. In the heating and heat supply stage, part of exhaust steam of the low-pressure cylinder section 1 enters the low-pressure cylinder section 2, so that heat supply network water is sequentially heated by the condenser, the absorption heat pump and the heat exchanger; in the deep peak regulation stage, steam admission of the second section of the low-pressure cylinder is reduced to the lowest steam flow for maintaining safe cooling, so that heat supply network water is sequentially heated by the absorption heat pump and the heat exchanger; and in the rotor replacement stage, steam admission of the second section of the low-pressure cylinder is stopped, so that heat supply network water is sequentially heated by the absorption heat pump and the heat exchanger. The system can solve the problems that in the prior art, combined heat and power generation efficiency and flexibility are difficult to consider, low-temperature waste heat utilization is insufficient, and system modification economy is poor.

A steam water-heating system 100, the steam system comprising: a heat exchanger 12 configured to heat water with steam; a steam supply line 18 supplying steam to the heat exchanger; a condensate line

The application discloses a coal-fired power plant blowdown steam optimal utilization system and an operation method. The system comprises a blowdown steam collecting device, which is provided with an inlet, and the inlet is connected with a blowdown steam pipeline; an adjusting pipeline is communicated with the inner cavity of the blowdown steam collecting device, and is used for supplying cooling water and adjusting the temperature of water in the blowdown steam collecting device; a drain port is arranged at the bottom of the blowdown steam collecting device, and the drain port is communicated with a drain pipeline, and a water supply device is communicated with the drain pipeline; the system further comprises a control device, a temperature detection device and a pressure detection device, the temperature detection device is arranged in the blowdown steam collecting device, the pressure detection device is arranged on the drain pipeline at the water outlet of the water supply device, and the control device is electrically connected with the temperature detection device and the pressure detection device. The application fully utilizes the energy of the blowdown steam, and can dynamically adjust the parameters of the blowdown steam to form hot water to match different user requirements, so that the application scene of the blowdown steam with a single parameter is wider.

A thermal system 1 with a double-circuit thermal system is provided, comprising a primary circuit 2.1 for heat generation and distribution and a secondary circuit 2.2 for heat transfer. Both circuits 2.1 and 2.2 are hydraulically decoupled but thermally combined by means of the heat exchanger 5. The thermal system 1 according to the invention enables the continued use of existing heating systems in existing buildings and their operation using a low-exergy heat source, in particular a heat pump 3, based on a low-temperature level. The reduced heating output is supplemented by the ceiling radiant heating system 4, which is additionally provided as a secondary circuit.

The invention provides an industrial steam system electric heating cooperative operation method, an industrial steam system and equipment, and relates to the technical field of industrial energy systems, the industrial steam system electric heating cooperative operation method is applied to the industrial steam system, the system comprises a main steam subsystem and an electric auxiliary subsystem, and the method comprises the steps that weight distribution is conducted on users according to steam demand parameters of each user, basic parameters of low-quality steam generated by the main steam subsystem are obtained; performing heat loss verification according to the steam transmission parameters, and judging whether the basic parameters meet heat loss requirements or not; if the basic parameters meet the heat loss requirement, determining a steam upgrading strategy of the electric auxiliary subsystem for low-quality steam according to the electric power supply parameters, the basic parameters and steam demand parameters of each user, and determining a basic operation strategy of the main steam subsystem in combination with the basic parameters; and controlling the operation of the industrial steam system according to the steam upgrading strategy and the basic operation strategy. The energy utilization rate of the industrial steam system is increased.

This utility model belongs to the field of steam turbine technology, and in particular to a heating system for flexible operation of the low-pressure cylinder. It includes a medium-pressure cylinder connector, a medium-low pressure pipeline, and a low-pressure cylinder inlet pipe connected in sequence. One end of the medium-pressure cylinder connector is connected to a heating extraction steam pipeline. The medium-pressure cylinder connector and the medium-low pressure pipeline are connected by a connecting pipe regulating valve. The medium-pressure cylinder connector is connected to the low-pressure cylinder inlet pipe through a cooling steam bypass pipe. One end of the cooling steam bypass pipe is connected to a bypass pipe regulating valve. This system can achieve flexible operation of the low-pressure cylinder, and also has the function of completely cutting off the low-pressure cylinder. It breaks through the limitations of conventional cylinder cutting technology that determines electricity based on heat, and enables the low-pressure cylinder of the unit to operate under conditions where the cooling flow rate is not met, thereby obtaining a larger heat and electricity ratio space.

The present application belongs to the technical field of nuclear energy and biomass energy coupling, and provides a double low-pressure cylinder machine side coupled nuclear energy system with negative carbon emission and a control method thereof. The first low-pressure cylinder and the second low-pressure cylinder are connected to a steam main pipe through a first adjusting valve and a second adjusting valve respectively, and a first control valve is arranged between the first low-pressure cylinder and the second low-pressure cylinder on the steam main pipe. The first low-pressure cylinder is connected to a residential heating system through a second control valve. The steam main pipe is connected to a nuclear energy heating reactor through a third control valve. The nuclear energy heating reactor is connected to a reboiler through a fourth control valve. The working states of the first low-pressure cylinder, the second low-pressure cylinder and the nuclear energy heating reactor are controlled through the actions of the valves, and the actions of the valves are controlled according to different working conditions in the heating season and the non-heating season. The problem that the nuclear energy heating reactor is difficult to adapt due to frequent changes in heating load is solved, the overall economy of the system is improved, and the problem that the nuclear reactor needs to be frequently adjusted due to load changes is avoided.

The invention discloses a system based on waste recycling and biomass energy utilization. Comprising a user side, a classification pre-treatment plant, a waste incineration power plant, a biomass direct combustion power plant, a biogas plant, a pyrolysis gasification co-production plant, a slag ash content treatment center, a waste liquid treatment center, a tail end gas treatment center, an electric power system control center and a thermodynamic system control center. The method has the advantages that the waste utilization rate is increased to 95% or above, pollution is reduced, carbon emission reduction is achieved, and meanwhile the method is wide in raw material source, low in raw material cost, obvious in advantages and highly prospective.

The invention belongs to the technical field of steam heat supply, and relates to a steam heat supply system. The steam heat supply system comprises a power plant low-pressure steam heat supply pipeline, a power plant medium-pressure steam heat supply pipeline, a first medium-pressure heat supply regulating valve group, a second medium-pressure heat supply regulating valve group, a first low-pressure heat supply regulating valve group, a second low-pressure heat supply regulating valve group, a first medium-pressure heat supply steam pipeline and a second medium-pressure heat supply steam pipeline. Petrochemical medium-pressure steam loading and petrochemical low-pressure steam loading. According to the method for conveying the low-pressure steam through the standby medium-pressure heat supply steam pipeline, the situation that the standby pipeline is in a nearly idle state of warm pipe hot standby is eliminated, the pipeline investment is reduced, and the pipeline utilization rate is increased.

The utility model discloses a steam energy-saving heat supply device which comprises heat supply pipelines and a connecting assembly, the connecting assembly is used for fixing connection of a plurality of heat supply pipelines, a first connector and a second connector are arranged on the upper side and the lower side of each heat supply pipeline respectively, and external threads are arranged on the tops of the heat supply pipelines and the tops of the second connectors. The connecting assembly comprises a first fixing frame, a first connector and a second fixing frame, the first connector is provided with external threads, the bottoms of the heat supply pipelines and the bottom of the first connector are provided with internal threads, the external threads are in threaded connection with the internal threads, and the connecting assembly comprises a first fixing frame, a second fixing frame and a fixing piece. The plug is inserted into the inserting opening, the second fixing frame is rotated, so that the connecting position of the heat supply pipeline is wrapped, the fixing bolt is inserted into the fixing opening, fixation of the heat supply pipeline can be enhanced, and on the contrary, disassembly and assembly are convenient.

The invention provides a boiler complementary multi-stage steam supply system coupled with thermocline solar photo-thermal energy storage. The boiler complementary multi-stage steam supply system comprises a solar storage system, a thermal power heat supply system and a steam supply system. The solar storage system comprises a solar tower, a fused salt storage heat exchanger, a thermocline heat storage tank, a main heat exchanger and a multi-stage heater; the solar tower is respectively connected with the fused salt storage heat exchanger and the main heat exchanger, the fused salt storage heat exchanger is respectively connected with the thermocline heat storage tank and the main heat exchanger, and the main heat exchanger is connected with the multi-stage heater; the thermal power heat supply system comprises a boiler, a regenerative system and a steam turbine, water supply ports of the boiler and the regenerative system are connected with a water inlet of the multi-stage heater, and a steam outlet of the multi-stage heater and a steam outlet of the boiler are connected with a steam inlet of the steam turbine; the multi-stage heater and the steam outlet of the boiler are connected with a steam supply system, under the condition that the deep peak regulation requirement of a power grid is met, the industrial steam supply requirement can be guaranteed, and the power generation coal consumption of a unit can be reduced.

The thermoelectric decoupling system based on the cylinder switching heat supply unit comprises the cylinder switching heat supply unit, a fused salt heat storage system and a heat supply adjusting system, and the cylinder switching heat supply unit comprises a boiler, a high-pressure cylinder, a medium-pressure cylinder and a low-pressure cylinder; a main steam outlet of the boiler is connected with an inlet of the high-pressure cylinder and an inlet of a main steam molten salt heat exchanger of the molten salt heat storage system so as to achieve split-flow utilization of main steam. An outlet of a reheater of the boiler is connected with an inlet of the medium-pressure cylinder and an inlet of a reheat steam molten salt heat exchanger of the molten salt heat storage system; a steam exhaust port of the medium-pressure cylinder is connected with an inlet of the high-pressure cylinder and an inlet of the heat supply adjusting system so as to meet the steam requirements of power generation and heat supply. The steam-water flow of the fused salt heat storage system and the cylinder switching heat supply unit coupling system can be optimized, full-cycle operation of the fused salt heat storage system in the pure condensing period and the heat supply period is achieved, and the deep peak regulation capacity and the heat supply capacity are improved while thermoelectricity decoupling of the heat supply unit is achieved.

An integrated insulated valve for use in heat pump installations comprises an isolation valve part 19, 20, 21, a strain part 23, 24, an antifreeze part 26, 27, and a vacuum breaker part 29, the parts

The utility model relates to the technical field of heat supply pipe networks, and discloses a heat supply pipe network pre-butt joint structure which comprises a first fixing plate, buckle plates are fixedly arranged at the two ends of the first fixing plate, a second fixing plate is connected to the bottom of the first fixing plate, and hinge seats are fixedly arranged at the two ends of the second fixing plate. The first fixing plate and the second fixing plate are arranged on the outer side of the buckling plate in a sleeved mode, the buckling plate is arranged on the outer side of the first fixing plate, a threaded rod is connected into the hinge seat in a hinged mode, the threaded rod is buckled into the buckling plate, the outer side of the threaded rod is sleeved with a pressing plate, and the outer side of the threaded rod is in threaded connection with a nut. Then the threaded rod on the outer side of the second fixing plate is buckled in the buckling plate on the outer side of the first fixing plate, so that the first fixing plate and the second fixing plate are fixed, then another heat supply pipe network is placed on the top of the arc-shaped plate, the heat supply pipe network is pushed to slide on the outer side of the arc-shaped plate, and therefore pre-butt joint is conducted on the heat supply pipe network, and butt joint deviation is avoided.