Heating device

Patent metadata

Field	Value
Publication number	US-11713887-B2
Application number	US-202218072862-A
Country	US
Kind code	B2
Filing date	Dec 1, 2022
Priority date	Dec 8, 2021
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

Disclosed is a heating device, including a first and second ends of an indoor water supply pipe communicated with a main water supply pipe and a water supply end of a radiator; a valve, a first temperature sensor, a heating and control module and a third temperature sensor arranged between the first and second ends; two ends of the heating and control module connected with a bypass pipe; a first and second ends of an indoor return water pipe communicated with a main return water pipe and a return water end of the radiator; a three-way valve and a second temperature sensor arranged between the first end and the second end of the indoor return water pipe; and a first and second ends of the water pump communicated with a third end of the three-way valve and the indoor water supply pipe.

First claim

What is claimed is:

1. A heating device, comprising a heating and control module, a bypass pipe, three temperature sensors, a water pump, a valve, a three-way valve, a main water supply pipe, a main return water pipe, an indoor water supply pipe and an indoor return water pipe;
wherein:
a first end of the indoor water supply pipe is communicated with the main water supply pipe; a second end of the indoor water supply pipe is communicated with a water supply end of a radiator; the valve, a first temperature sensor, the heating and control module and a third temperature sensor are arranged between the first end and the second end of the indoor water supply pipe in sequence; and two ends of the heating and control module are connected with the bypass pipe in parallel;
a first end of the indoor return water pipe is communicated with the main return water pipe; a second end of the indoor return water pipe is communicated with a return water end of the radiator; and the three-way valve and a second temperature sensor are arranged between the first end and the second end of the indoor return water pipe in sequence; and
a third end of the three-way valve is communicated with a first end of the water pump, and a second end of the water pump is communicated with the indoor water supply pipe between the first temperature sensor and the heating and control module.

2. The heating device according to claim 1 , wherein the heating and control module is used for collecting outdoor temperature, indoor control temperature and measured values of the first temperature sensor, the second temperature sensor and the third temperature sensor; and
the heating and control module is also used for controlling starting of heating function, heating power, rotating speed of the water pump, opening and closing of the valve and opening and closing of the three-way valve through an internal optimization algorithm.

3. The heating device according to claim 1 , wherein the heating device at least comprises a low-temperature mode, a heat-up mode and a heat-control mode.

4. The heating device according to claim 3 , wherein when the heating and control module is turned off, the valve is opened and the water pump is turned off, water from the main water supply pipe flowing in the indoor water supply pipe flows through the bypass pipe, and the heating device is in the low-temperature mode.

5. The heating device according to claim 3 , wherein when the heating and control module is turned on, the valve is opened, the water pump is turned off, and temperature at the second temperature sensor is lower than temperature at the first temperature sensor, water from the main water supply pipe flowing in the indoor water supply pipe flows through the bypass pipe, and the heating device is in the heat-up mode.

6. The heating device according to claim 3 , wherein when the heating and control module is turned on, the valve is closed, the water pump is turned on, and temperature at the second temperature sensor is higher than temperature at the first temperature sensor, water in the main water supply pipe may not flow into the indoor water supply pipe, and the heating device performs indoor self-circulation and is in the heat-control mode.

7. The heating device according to claim 1 , wherein heating modes of the heating and control module comprise at least one of electric heating, photovoltaic panels electrical storage heating or storage battery heating.

8. The heating device according to claim 1 , wherein the heating and control module determines real-time predicted values of thermal loads,
determines control input values of an indoor decentralized heat regulation system, wherein the control input values comprise heating power of a heater and rotating speed of the water pump, determines indoor temperature of users as output values of the indoor decentralized heat regulation system,
determines outdoor temperature, measured values of the first temperature sensor, the second temperature sensor and the third temperature sensor as process variables of the indoor decentralized heat regulation system,
deduces and establishes a subspace predictive function related to an indoor decentralized heat regulation system model through a data-driven subspace prediction and control method based on the control input values, the output values, the process variables and a subspace identification technology, wherein the subspace predictive function represents a relationship between heating power of the indoor decentralized heat regulation system, the rotating speed of the water pump and the indoor temperature of the users,
takes a performance index function composed of electricity consumption and the indoor temperature of the users as a control objective function of a subspace predictive controller, solves the control objective function to obtain control input values of the subspace predictive controller, and regulates and controls the heating power of the indoor decentralized heat regulation system as well as the rotating speed of the water pump according to the control input values.

9. The heating device according to claim 8 , wherein the heating and control module performs data-driven dynamic prediction of the thermal loads based on collected operation data and a building thermal balance mechanism, and determines the real-time predicted values of the thermal loads.

10. The heating device according to claim 9 , wherein determining the real-time predicted values of the thermal loads by the heating and control module comprises:
taking building operation data and historical thermal load data as an input matrix and future thermal load data as an output matrix;
standardizing the input matrix and the output matrix;
inputting the standardized input matrix and the standardized output matrix into a Bayesian network for training, using a Gaussian mixture model to approximate a joint probability density distribution function in a Bayesian network model, and solving parameters of the Gaussian mixture model by an Expectation Maximization Algorithm to obtain a Bayesian network estimation formula; and
determining the real-time predicted values of the thermal loads according to the Bayesian network estimation formula.

Assignees

• Univ Beijing Science & Technology

Inventors

• Tu Rang
• Yang Xu
• Chen Xianzhong
• Gao Jingjing

Classifications

• F24D3/105 Primary

  pumps combined with multiple way valves · CPC title

• F24D13/04 Primary

  using electric heating of heat-transfer fluid in separate units of the system · CPC title

• F24D19/1012

  by regulating the speed of a pump · CPC title

• F24D19/1024

  a multiple way valve · CPC title

• G05B19/042

  using digital processors (G05B19/05 takes precedence) · CPC title