14results about "Fluid distribution means" patented technology

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 present invention discloses a mobile heating method, which aims to solve the problem of traditional steam supply methods, which are mostly transmitted through pipelines. However, when the distance between the heat source and the heat user is too long, the pipeline investment cost is high, the planning and approval is difficult, and the construction period is long, which will seriously restrict the development of the heating business. The invention includes the following steps: S1, leading out a branch pipe from the heat source steam pipeline and connecting a steam distribution pipe to the branch pipe, and installing a number of gas pipes on the steam distribution pipe; S2, driving a heating vehicle to the steam distribution pipe position, connecting the heating vehicle to the gas pipe, and charging steam into the heating vehicle through the gas pipe; S3, after the heating vehicle completes the steam charging, it drives to the user end position, connects the heating vehicle to the pipeline at the user end, and transports the steam in the heating vehicle to the pipeline at the user end, thereby realizing mobile heating. This mobile heating method can realize the long-distance distribution of heat energy without a pipeline network, saves the cost of laying the pipeline network, and shortens the construction period.

The present invention relates to an insulation system suitable for the thermal insulation of components of a hydraulic control group (10), comprising a first insulation device (32) and a second insulation device (34), wherein the first insulation device (32) has at least one insulation module (40, 42, 44, 46) which has a cavity inside and is composed of at least two shell parts (41a, 41b, 43a, 43b, 45a, 45b, 47a, 47b), wherein the second insulation device (34) surrounds the first insulation device (32) at least partially, and wherein the first insulation device (32) is made of a diffusion-tight material.

A heat transfer system 10 comprises a liquid flow circuit 14 with a liquid containing a chemical additive flowing through one or more heat transfer devices 11, 12, 13 and a sensor 17 providing an output signal when liquid flows into the circuit 14. The system may be permanently connected to a supply 16 of liquid. The output signal of the sensor may be a function of the volume flow of liquid into the circuit and the system may include a display 19 showing the volume of liquid which has entered the circuit and may be resettable following the addition of liquid or chemical additive to the circuit. The sensor 17 and display 19 may be part of a monitoring device which also includes a data store. The sensor 17 may be in communication with a dosing device 18 to automatically introduce chemical additive to into the circuit in response to a signal from the monitoring device and an alarm may be generated when there is insufficient chemical additive to restore the required concentration in the circuit. The invention is intended for use with domestic central heating systems.

A manifold (364) includes selectable different internal flowpaths between one or more inlets (660, 670) and one or more outlets (655, 665, 676) of the manifold (364), each internal flowpath corresponding to a particular selected operating mode of a system, such as a water provisioning system, each operating mode having an associated known temperature profile of the corresponding internal flowpath within the manifold (364). Temperature sensors (650, 651, 652) are mounted on the manifold adjacent the inlet(s) and the outlet(s), to provide temperature signals indicative of a temperature of a liquid passing through the respective inlet and outlet when the manifold (364) is operating in a particular selected operating mode of the system. The inlet temperature and outlet temperature signals are usable by a controller to learn a temperature of the liquid passing through an outlet when a liquid of a particular temperature passes through the inlet when the manifold is operating in the particular selected operating mode of the system so as to control a component of the system operating in the particular selected operating mode.

A heat pump system for a building can include thermal energy storage tanks, a first air source heat pump for providing energy to the system, a second air source heat pump for providing energy to the system under cold climate conditions, and an additional heat source for supporting defrost operations and / or to provide energy under extreme cold conditions. The system can further include a controller configured to provide efficient use of energy sources to meet heating demands under extreme cold conditions.

A receiver, a receiver assembly and a heat pump system. The receiver includes a first pipe, a second pipe and a third pipe leading to the cavity of the receiver, wherein the first pipe, the second pipe and the third pipe connect to a first load unit, a second load unit and a cold and heat source unit, respectively.

The present invention is directed to a mixing manifold (15) for a hydronic system (1), wherein the mixing manifold (15) comprises - a first fluid inlet (27), - a second fluid inlet (29), - a fluid outlet (31) having an outlet diameter (D), and - a mixing zone (33) extending from a mixing zone start point (35), where fluid coming from the second fluid inlet (29) starts mixing with fluid coming from the first fluid inlet (27), to a mixing zone end point (37), wherein the mixing zone (33) is shaped to guide all mixing fluid along a defined meandering mixing zone flow path comprising at least one turn of direction, wherein the mixing zone flow path has a mixing zone flow path length (L) that is at least three times longer than the outlet diameter (D), wherein the mixing zone end point (37) is defined as the most downstream of the at least one turn of direction of the meandering mixing zone flow path.

A manifold 364 includes one or more inlets 660,670 and one or more outlets 655,665,676 having selectable different internal flowpaths therebetween. Temperature sensors 650,651,652 are mounted on the manifold adjacent the inlet 660 and outlet(s) 655,665 to provide temperature signals indicative of a temperature of a liquid passing through the respective inlet and outlet(s). The manifold ideally comprises semiconductor switching elements 615,625,635 and flow sensors (680,681,682, figure 7). A water heating system is also claimed that comprises: a cold water inlet (302, figure 2) for receiving mains cold water; a hot water outlet (304, figure 2) for domestic hot water (DHW) supply; a hot water tank (342, figure 2); the manifold; and a controller. The controller operates the system in a plurality of operating modes and controls the system based upon temperature signals received from the inlet and outlet temperature sensors. The controller ideally uses a Machine Learning Algorithm (MLA) to learn the temperature of water passing through the manifold inlet and outlets during a given operating mode.

The application discloses a heat supply secondary pipe network balanced flow regulation method, which comprises the following steps: S1, dividing different unit heat supply areas; S2, heat supply system transformation; S3, measuring the actual heat supply flow parameters in the minimum unit heat supply area through experiments, the target heat supply flow parameters are smaller than the actual heat supply flow parameters, a first heat supply plan is adopted, and the target heat supply flow parameters are greater than the actual heat supply flow parameters, a second heat supply plan is adopted; and S4, the outlet pipe of the unit heat supply area is communicated with a circulating pump through a backflow pipe network, and the circulating pump is used to pump the flowing medium in the backflow pipe to a heat exchange station. According to the different user quantities, the linear branch pipe, the ring type branch pipe and the ring type branch pipe can be selected and used for different unit heat supply areas, the heat supply path of the branch pipe network is shortened, the problem that the increase or decrease of users in the system leads to hydraulic disorder is solved, the opening degree of the valve is adjusted by the flow controller in real time according to the feedback data, and the balanced pipe network flow is realized.

A heat pump system for a building may include a thermal energy storage tank, a first air source heat pump for providing energy to the system, a second air source heat pump for providing energy to the system under cold climate conditions, and additional heat sources for supporting defrost operations and / or providing energy under extreme cold conditions. The system may also include a controller configured to efficiently use energy to meet heating requirements under extreme cold conditions.

A heat pump system for a building can include thermal energy storage tanks, a first air source heat pump for providing energy to the system, a second air source heat pump for providing energy to the system under cold climate conditions, and an additional heat source for supporting defrost operations and / or to provide energy under extreme cold conditions. The system can further include a controller configured to provide efficient use of energy sources to meet heating demands under extreme cold conditions.

The invention relates to a combined type hot water supply system and a control method, the combined type hot water supply system comprises a heat pump unit, a photovoltaic heating device, an electric heating device, a heating water tank, a heat preservation water tank, a water supply tail end and a control assembly which are communicated through a pipeline assembly, and the heat pump unit and the photovoltaic heating device are connected in parallel and then connected with the electric heating device in series; a first series branch in the pipeline assembly communicates with the water outlet end of the heat pump unit and the water inlet end of the photovoltaic heating device, a second series branch communicates with the water outlet end of the photovoltaic heating device and the water inlet end of the heat pump unit, and the control assembly is used for achieving flow direction control of water flow in the pipeline assembly. According to the combined type hot water supply system, the communication states of the heat pump unit, the photovoltaic heating device and the electric heating device are controlled to be switched, the optimal working mode can be switched according to the operation working condition, the hot water requirement is guaranteed, meanwhile, energy is utilized to the maximum degree, and the energy consumption of the combined type hot water supply system is reduced.

The invention relates to an energy supply system of a non-phase-change multi-energy supply module and a control method of the energy supply system. The method comprises the following steps: circularly heating the first heat storage water tank; if the outlet water temperature reaches the preset water temperature target value, the first heat storage water tank is controlled to return water, and meanwhile hot water is injected into the second heat storage water tank in the empty state; when the second heat storage water tank is filled with water and the water in the first heat storage water tank is evacuated, the third heat storage water tank is circularly heated; if the outlet water temperature reaches the preset water temperature target value, the third heat storage water tank is controlled to return water, and meanwhile hot water is supplied to the first heat storage water tank in the empty state; and when the current kth hot water storage tank in the empty state is filled with water and the (k-1) th water tank is evacuated, the (k + 1) th water tank is heated, water is injected into the (k-1) th water tank, and meanwhile water returning is conducted on the kth water tank till heating of the Nth water tank is completed. The hot water can be guaranteed not to be mixed, the heat energy utilization rate is increased, and the situation that the unit is standby and cannot be started due to too high temperature of return water is avoided.