A heating system that uses non-pressurized heat and pressurized heat

Abstract

The present application relates to a heating system for non-pressurized heat accumulation and pressurized use, including a storage system, a direct supply system and a controller. The storage system includes a first solar water heater and a water storage tank, and a first water pump is connected to the pipeline between the first water outlet of the water storage tank and the water inlet of the first solar water heater; the direct supply system includes a second solar water heater and a heating water tank; the second water outlet of the water storage tank is connected to a second water pump, the water inlet of the second solar water heater is connected to a third water pump, and the water outlet of the heating water tank is connected to a fourth water pump, and the first solar water heater, the water storage tank, the second solar water heater and the heating water tank are all provided with temperature sensors; the controller receives data from the temperature sensor and controls the opening of the first water pump, the second water pump, the third water pump and the fourth water pump. The present application adds a storage system, which can use solar energy to store a large amount of thermal energy, and can save energy to make up for the heating demand at night.

Description

Technical Field

[0001] The invention relates to the field of heating, and in particular to a heating system that is used for non-pressure-bearing heat accumulation and pressure-bearing use. Background Art

[0002] Existing solar heating systems generally only have direct supply systems, but no storage systems, and cannot meet the heating needs at night. When heating is needed at night, it needs to be used in conjunction with heating systems such as municipal electricity heating, which results in high consumption. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide a heating system for non-pressurized heat accumulation and pressurized use, which overcomes the above problems or at least partially solves the above problems.

[0004] According to one aspect of the present invention, a heating system for non-pressurized heat accumulation and pressurized use is provided, including a storage system, a direct supply system and a controller, the storage system including a first solar water heater and a water tank, the water outlet of the first solar water heater is connected to a first water inlet of the water tank through a pipeline, the first water outlet of the water tank is connected to the water inlet of the first solar water heater through a pipeline, a first water pump is connected to the pipeline between the first water outlet of the water tank and the water inlet of the first solar water heater, a first temperature sensor is arranged on the first solar water heater, and a second temperature sensor is arranged on the water tank; the direct supply system includes a second solar water heater and a heating water tank, the water outlet of the second solar water heater is connected to the water inlet of through a pipeline, the water inlet of the second solar water heater is connected to the water outlet of through a pipeline; the water outlet of the heating water tank is connected to the water inlet of through a pipeline, the water inlet of the heating water tank is connected to the water outlet of through a pipeline; the second water outlet of the water tank is connected to the water inlet of through a pipeline The second water inlet of the water storage tank is connected to the water outlet through a pipeline; the second water outlet of the water storage tank is connected to the second water pump, the water inlet of the second solar water heater is connected to the third water pump, the water outlet of the heating water tank is connected to the fourth water pump, the second solar water heater is provided with a third temperature sensor, and the heating water tank is provided with a fourth temperature sensor; the controller is connected to the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor, the first water pump, the second water pump, the third water pump and the fourth water pump; the first temperature sensor is used to measure the water temperature in the first solar water heater, the second temperature sensor is used to measure the water temperature in the water storage tank, the third temperature sensor is used to measure the water temperature in the second solar water heater, and the fourth temperature sensor is used to measure the water temperature in the heating water tank; the controller receives data from the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor, and controls the start of the first water pump, the second water pump, the third water pump and the fourth water pump.

[0005] In a possible implementation manner, a first solenoid valve and a first stop valve are further connected to the pipeline between the first water outlet of the water storage tank and the water inlet of the first solar water heater.

[0006] In a possible implementation, the second water outlet of the water tank is also connected to a second solenoid valve and a second stop valve connected in series with the second water pump.

[0007] In a possible implementation manner, the water inlet of the second solar water heater is further connected to a third solenoid valve and a third stop valve which are connected in series with the third water pump.

[0008] In a possible implementation manner, a fourth solenoid valve is further provided at the water inlet of the heating water tank.

[0009] In a possible implementation manner, the second water inlet of the water tank is further provided with a fifth solenoid valve.

[0010] The present invention adds a storage system, which can utilize solar energy to store a large amount of thermal energy, thereby saving energy to make up for the heating demand at night.

[0011] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0013] Figure 1 A structural schematic diagram of a heating system for non-pressurized heat accumulation and pressurized use provided by an embodiment of the present invention;

[0014] Description of reference numerals:

[0015] 1-Storage system, 2-Direct supply system, 3-Floor heating pipes;

[0016] 101-first solar water heater, 102-water storage tank, 103-first water pump, 104-first temperature sensor, 105-second temperature sensor, 106-second water pump, 107-first solenoid valve, 108-first stop valve, 109-second solenoid valve, 110-second stop valve;

[0017] 201 - a second solar water heater, 202 - a heating water tank, 203 - a third water pump, 204 - a fourth water pump, 205 - a third temperature sensor, 206 - a fourth temperature sensor, 207 - a third solenoid valve, 208 - a third stop valve, 209 - a fourth solenoid valve, 210 - a fifth solenoid valve. DETAILED DESCRIPTION

[0018] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0019] The terms "comprises" and "having" and any variations thereof in the description embodiments, claims and drawings of the present invention are intended to cover non-exclusive inclusions, for example, including a series of steps or units.

[0020] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1 The embodiment of the present invention provides a heating system for non-pressurized heat accumulation and pressurized use, comprising:

[0022] Storage system 1, direct supply system 2 and controller (not shown in the figure).

[0023] The storage system 1 includes a first solar water heater 101 and a water tank 102, wherein the water outlet of the first solar water heater 101 is connected to the first water inlet of the water tank 102 via a pipeline, and the first water outlet of the water tank 102 is connected to the water inlet of the first solar water heater 101 via a pipeline, and a first water pump 103 is connected to the pipeline between the first water outlet of the water tank 102 and the water inlet of the first solar water heater 101, a first temperature sensor 104 is provided on the first solar water heater 101, and a second temperature sensor 105 is provided on the water tank 102.

[0024] The direct supply system 2 includes a second solar water heater 201 and a heating water tank 202. The water outlet of the second solar water heater 201 is connected to the water inlet of the floor heating pipe 3 through a pipeline, and the water inlet of the second solar water heater 201 is connected to the water outlet of the floor heating pipe 3 through a pipeline.

[0025] The water outlet of the heating water tank 202 is connected to the water inlet of the floor heating pipe 3 through a pipeline, and the water inlet of the heating water tank 202 is connected to the water outlet of the floor heating pipe 3 through a pipeline.

[0026] The second water outlet of the water storage tank 102 is connected to the water inlet of the floor heating pipe 3 through a pipeline, and the second water inlet of the water storage tank 102 is connected to the water outlet of the floor heating pipe 3 through a pipeline.

[0027] The second water outlet of the water storage tank 102 is connected to the second water pump 106, the water inlet of the second solar water heater 201 is connected to the third water pump 203, the water outlet of the heating water tank 202 is connected to the fourth water pump 204, the second solar water heater 201 is provided with a third temperature sensor 205, and the heating water tank 202 is provided with a fourth temperature sensor 206.

[0028] The controller is connected to the first temperature sensor 104 , the second temperature sensor 105 , the third temperature sensor 205 , the fourth temperature sensor 206 , the first water pump 103 , the second water pump 106 , the third water pump 203 and the fourth water pump 204 .

[0029] The first temperature sensor 104 is used to measure the water temperature in the first solar water heater 101 , the second temperature sensor 105 is used to measure the water temperature in the water storage tank 102 , the third temperature sensor 205 is used to measure the water temperature in the second solar water heater 201 , and the fourth temperature sensor 206 is used to measure the water temperature in the heating water tank 202 .

[0030] The controller receives data from the first temperature sensor 104 , the second temperature sensor 105 , the third temperature sensor 205 , and the fourth temperature sensor 206 , and controls the start of the first water pump 103 , the second water pump 106 , the third water pump 203 , and the fourth water pump 204 .

[0031] The specific working principle is as follows:

[0032] Storage system: The data detected by the first temperature sensor 104 is sent to the controller. When the water temperature of the first solar water heater 101 is greater than or equal to the first preset threshold, the controller controls the first water pump 103 to start, and the water in the water tank 102 and the water in the first solar water heater 101 are circulated.

[0033] In one example, on the basis of satisfying the condition that the water temperature of the first solar water heater 101 is greater than or equal to the first preset threshold, the controller starts the first water pump 103 when it detects that the temperature difference between the water tank 102 and the first solar water heater 101 is greater than or equal to the second preset threshold.

[0034] For example, here we set the first preset threshold to 40° C. and the second preset threshold to 5° C. The first preset threshold and the second preset threshold are adjustable within the range of 0-99° C.

[0035] Direct supply system: The data detected by the third temperature sensor 205 and the fourth temperature sensor 206 are sent to the controller. When the water temperature in the second solar water heater 201 is greater than or equal to the third preset threshold, the controller idles the third water pump 203 and starts it. The second solar water heater 201 directly circulates with the water in the floor heating pipe 3 until the water temperature in the second solar water heater 201 is less than the third preset threshold. During the operation of the third water pump 203, the second water pump 106 and the fourth water pump 204 are not in operation.

[0036] Exemplarily, the third preset threshold is 40° C. The third preset threshold is adjustable within the range of 0-99° C.

[0037] When the water temperature in the second solar water heater 201 is lower than the third preset threshold, and the water temperature in the water tank 102 is greater than or equal to the fourth preset threshold, the controller starts the second water pump 106, and the water in the water tank 102 circulates directly with the water in the floor heating pipe 3 until the water temperature in the water tank 102 is lower than the fourth preset threshold, then the second water pump 106 stops, the third water pump 203 stops, and the fourth water pump 204 starts. At the same time, the controller starts the heating device in the heating water tank 202, and the water in the heating water tank 202 circulates directly with the water in the floor heating pipe 3.

[0038] Exemplarily, the fourth preset threshold is 38° C. The fourth preset threshold is adjustable within the range of 0-99° C.

[0039] When the water temperature in the second solar water heater 201 is greater than or equal to the third preset threshold, the third water pump 203 is controlled to start, the second water pump 106 and the fourth water pump 204 are stopped, and the heating device of the heating water tank 202 is controlled to stop.

[0040] The temperatures of the storage system 1 and the direct supply system 2 are detected to be the set temperature at the same time, and they are started at the same time, independently of each other.

[0041] The heating water tank 202 can be heated by city electricity, coal or gas.

[0042] In one example, a first solenoid valve 107 and a first stop valve 108 are connected to the pipeline between the first water outlet of the water tank 102 and the water inlet of the first solar water heater 101, and both the first solenoid valve 107 and the first stop valve 108 are connected to the controller.

[0043] In one example, the second water outlet of the water storage tank 102 is also connected to a second solenoid valve 109 and a second stop valve 110 which are connected in series with the second water pump 106 , and both the second solenoid valve 109 and the second stop valve 110 are connected to the controller.

[0044] In one example, the water inlet of the second solar water heater 201 is also connected to a third solenoid valve 207 and a third stop valve 208 connected in series with the third water pump 203, and both the third solenoid valve 207 and the third stop valve 208 are connected to the controller.

[0045] In one example, a fourth solenoid valve 209 is further provided at the water inlet of the heating water tank 202, and the fourth solenoid valve 209 is connected to the controller.

[0046] In one example, the second water inlet of the water storage tank 102 is further provided with a fifth solenoid valve 210 , and the fifth solenoid valve 210 is connected to the controller.

[0047] Exemplarily, the controller is a PLC controller, model Siemens S7-200.

[0048] Operation scenario introduction:

[0049] The circulation status of the floor heating pipe 3 is as follows:

[0050] When the sun is shining, when the temperature in the second solar water heater 201 in the direct supply system reaches a preset threshold, the water in the floor heating pipe 3 and the second solar water heater 201 circulates.

[0051] When the temperature in the second solar water heater 201 in the direct supply system does not reach the preset threshold, and the water temperature in the water tank 102 reaches the preset threshold, the water in the floor heating pipe 3 and the water tank 102 circulates, and the second solar water heater 201 no longer participates in the circulation.

[0052] When the temperature in the second solar water heater 201 in the direct supply system does not reach the preset threshold, and the water temperature in the water tank 102 also does not reach the preset threshold, the water in the floor heating pipe 3 and the heating water tank 202 circulates, and the water tank 102 no longer participates in the circulation.

[0053] The above specific implementation methods further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heating system for non-pressurized heat accumulation and pressurized use, characterized in that: It comprises a storage system (1), a direct supply system (2) and a controller; The storage system (1) comprises a first solar water heater (101) and a water storage tank (102); the water outlet of the first solar water heater (101) is connected to a first water inlet of the water storage tank (102) via a pipeline; the first water outlet of the water storage tank (102) is connected to a water inlet of the first solar water heater (101) via a pipeline; a first water pump (103) is connected to the pipeline between the first water outlet of the water storage tank (102) and the water inlet of the first solar water heater (101); a first temperature sensor (104) is provided on the first solar water heater (101); and a second temperature sensor (105) is provided on the water storage tank (102); The direct supply system (2) comprises a second solar water heater (201) and a heating water tank (202), the water outlet of the second solar water heater (201) being connected to the water inlet of the floor heating pipe (3) via a pipeline, and the water inlet of the second solar water heater (201) being connected to the water outlet of the floor heating pipe (3) via a pipeline; The water outlet of the heating water tank (202) is connected to the water inlet of the floor heating pipe (3) through a pipeline, and the water inlet of the heating water tank (202) is connected to the water outlet of the floor heating pipe (3) through a pipeline; The second water outlet of the water storage tank (102) is connected to the water inlet of the floor heating pipe (3) through a pipeline, and the second water inlet of the water storage tank (102) is connected to the water outlet of the floor heating pipe (3) through a pipeline; The second water outlet of the water storage tank (102) is connected to a second water pump (106), the water inlet of the second solar water heater (201) is connected to a third water pump (203), the water outlet of the heating water tank (202) is connected to a fourth water pump (204), the second solar water heater (201) is provided with a third temperature sensor (205), and the heating water tank (202) is provided with a fourth temperature sensor (206); The controller is connected to the first temperature sensor (104), the second temperature sensor (105), the third temperature sensor (205), the fourth temperature sensor (206), the first water pump (103), the second water pump (106), the third water pump (203) and the fourth water pump (204); The first temperature sensor (104) is used to measure the water temperature in the first solar water heater (101), the second temperature sensor (105) is used to measure the water temperature in the water storage tank (102), the third temperature sensor (205) is used to measure the water temperature in the second solar water heater (201), and the fourth temperature sensor (206) is used to measure the water temperature in the heating water tank (202); The controller receives data from the first temperature sensor (104), the second temperature sensor (105), the third temperature sensor (205) and the fourth temperature sensor (206), and controls the start of the first water pump (103), the second water pump (106), the third water pump (203) and the fourth water pump (204).

2. The heating system for non-pressurized heat accumulation and pressurized use according to claim 1 is characterized in that: A first solenoid valve (107) and a first stop valve (108) are also connected to the pipeline between the first water outlet of the water storage tank (102) and the water inlet of the first solar water heater (101).

3. The heating system for non-pressurized heat accumulation and pressurized use according to claim 1 is characterized in that: The second water outlet of the water storage tank (102) is also connected to a second solenoid valve (109) and a second stop valve (110) which are connected in series with the second water pump (106).

4. The heating system for non-pressurized heat accumulation and pressurized use according to claim 1 is characterized in that: The water inlet of the second solar water heater (201) is also connected to a third solenoid valve (207) and a third stop valve (208) which are connected in series with the third water pump (203).

5. The heating system for non-pressurized heat accumulation and pressurized use according to claim 1 is characterized in that: The water inlet of the heating water tank (202) is also provided with a fourth solenoid valve (209).

6. The heating system for non-pressurized heat accumulation and pressurized use according to claim 1, characterized in that: The second water inlet of the water storage tank (102) is also provided with a fifth solenoid valve (210).

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