A control method for a heat recovery type hotel cold, hot and spa hot water supply system

Abstract

The application provides a heat recovery type hotel cold, hot and hot spring water supply system control method, which comprises a heat recovery type air source heat pump, a hot spring waste water heat preservation tank, a first heat exchanger, a hot spring raw water heat preservation tank, a water source heat pump, a building heating / air conditioning heat exchanger, a building heating / air conditioning terminal and a controller. A first circulating pipeline is arranged between the heat recovery type air source heat pump, the water source heat pump and the hot spring raw water heat preservation tank, a second circulating pipeline is arranged between the hot spring waste water heat preservation tank and the first heat exchanger, a third circulating pipeline is arranged between the first heat exchanger and the water source heat pump, a fourth circulating pipeline is arranged between the building heating / air conditioning heat exchanger and the first circulating pipeline and the second circulating pipeline, and a fifth circulating pipeline is arranged between the heat recovery type air source heat pump, the building heating / air conditioning terminal and the building heating / air conditioning heat exchanger. The system can greatly reduce the energy consumption of the cold and hot energy supply of the hot spring hotel building, and then the energy consumption cost of the hotel can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of new energy technology, in particular to a heat recovery type hotel cold, heat, hot spring hot water supply system control method. BACKGROUND

[0002] With the energy saving and emission reduction and environmental problems highlighted, the use of renewable energy is more and more valued, in order to better reduce the building energy loss, achieve good economic benefit and environmental benefit, air source heat pump, water source heat pump and other low quality heat source recovery products have become mature.

[0003] At present, with the rising prices of coal, electricity, oil, gas and water resources, the energy consumption cost of hotel industry has accounted for 15% to 20% of the hotel operating income, and reducing energy consumption has become the key factor for hotel to improve market competitiveness. In the energy consumption of hot spring hotel, refrigeration, heating and hot spring hot water account for a large proportion. How to use low quality heat source recovery products to realize the energy consumption of hot spring hotel refrigeration, heating and hot spring hot water is a problem to be solved. SUMMARY

[0004] The purpose of the present application is to provide a heat recovery type hotel cold, heat, hot spring hot water supply system control method, the system and the operation control method can greatly reduce the energy consumption of hot spring hotel building in summer, winter and hot spring water heating, thereby reducing the energy consumption cost of hotel.

[0005] The technical scheme adopted by the present application to solve its technical problems is: a heat recovery type hotel cold, hot and hot spring water supply system, comprising a heat recovery type air source heat pump, a hot spring wastewater heat preservation tank, a first heat exchanger, a hot spring raw water heat preservation tank, a water source heat pump, a building heating / air conditioning heat exchanger, a building heating / air conditioning terminal, a controller, a first circulating pipeline is arranged between the heat recovery type air source heat pump, the water source heat pump and the hot spring raw water heat preservation tank, and the first circulating pipeline is used to realize the circulation of hot spring water between the heat recovery type air source heat pump, the water source heat pump and the hot spring raw water heat preservation tank or the circulation between the water source heat pump and the hot spring raw water heat preservation tank; a second circulating pipeline is arranged between the hot spring wastewater heat preservation tank and the first heat exchanger, a third circulating pipeline is arranged between the first heat exchanger and the water source heat pump, and a fourth circulating pipeline is arranged between the building heating / air conditioning heat exchanger and the first and second circulating pipelines, the fourth circulating pipeline is used to realize the through connection between the building heating / air conditioning heat exchanger and the first or third circulating pipeline, a fifth circulating pipeline is arranged between the heat recovery type air source heat pump, the building heating / air conditioning terminal and the building heating / air conditioning heat exchanger, the fifth circulating pipeline is used to realize the circulation of heat transfer medium between the heat recovery type air source heat pump, the building heating / air conditioning terminal and the building heating / air conditioning heat exchanger, and the controller is used to control the operation of the heat recovery type air source heat pump, the water source heat pump, the first, second, third, fourth and fifth circulating pipelines.

[0006] Preferably, the first circulating pipeline comprises a first pipeline, a second pipeline, a third pipeline, a fourth pipeline and a first circulating water pump, the first pipeline and the second pipeline realize the through connection of the heat release side of the water source heat pump and the hot spring raw water heat preservation tank, the first circulating water pump is arranged on the first pipeline, the third pipeline and the fourth pipeline realize the through connection of the heat recovery type air source heat pump and the second pipeline, a first electric control valve is arranged between the connection position of the third pipeline and the second pipeline and the connection position of the fourth pipeline and the second pipeline, and a second electric control valve and a third electric control valve are respectively arranged on the third pipeline and the fourth pipeline.

[0007] Further, the second circulating pipeline comprises a fifth pipeline, a sixth pipeline and a second circulating water pump, the fifth pipeline and the sixth pipeline realize the through connection of the hot spring wastewater heat preservation tank and the heat absorption side of the first heat exchanger, and the second circulating water pump is arranged on the fifth pipeline.

[0008] Further, the third circulating pipeline comprises a seventh pipeline, an eighth pipeline and a third circulating water pump, the seventh pipeline and the eighth pipeline realize the through connection of the heat release side of the first heat exchanger and the heat absorption side of the water source heat pump, the third circulating water pump is arranged on the seventh pipeline, and a fourth electric control valve and a fifth electric control valve are respectively arranged on the seventh pipeline and the eighth pipeline.

[0009] Further, the fourth circulation pipeline comprises a ninth pipeline and a tenth pipeline, one end of the ninth pipeline and the tenth pipeline is respectively penetrated with one side of the building heating / air conditioning heat exchanger, the other end of the ninth pipeline is connected with the fourth pipeline and the seventh pipeline through a eleventh pipeline and a twelfth pipeline in parallel, the other end of the tenth pipeline is connected with the third pipeline and the eighth pipeline through a thirteenth pipeline and a fourteenth pipeline in parallel, a sixth electric control valve, a seventh electric control valve, an eighth electric control valve and a ninth electric control valve are respectively arranged on the eleventh pipeline, the twelfth pipeline, the thirteenth pipeline and the fourteenth pipeline.

[0010] Further, the fifth circulation pipeline comprises a fifteenth pipeline, a sixteenth pipeline and a seventeenth pipeline, the fifteenth pipeline realizes the penetration of the heat recovery type air source heat pump and the building heating / air conditioning heat exchanger, the sixteenth pipeline realizes the penetration of the heat recovery type air source heat pump and the building heating / air conditioning terminal, the seventeenth pipeline realizes the penetration of the building heating / air conditioning terminal and the building heating / air conditioning heat exchanger, a fourth circulating water pump is arranged on the seventeenth pipeline, a tenth electric control valve and an eleventh electric control valve are respectively arranged on the fifteenth pipeline and the sixteenth pipeline.

[0011] Further, a first temperature transmitter and a second temperature transmitter are respectively arranged on the first pipeline and the second pipeline, a third temperature transmitter and a fourth temperature transmitter are respectively arranged on the fifth pipeline and the sixth pipeline, a fifth temperature transmitter and a sixth temperature transmitter are respectively arranged on the seventh pipeline and the eighth pipeline, a seventh temperature transmitter and an eighth temperature transmitter are respectively arranged on the ninth pipeline and the tenth pipeline, a ninth temperature transmitter and a tenth temperature transmitter are respectively arranged on the fifteenth pipeline and the sixteenth pipeline, an eleventh temperature transmitter and a twelfth temperature transmitter are respectively arranged on both ends of the seventeenth pipeline.

[0012] A control method of a heat recovery type hotel cold, hot and hot spring water supply system, comprising the heat recovery type hotel cold, hot and hot spring water supply system, a heating season operation control module, an air conditioning season operation control module and a hot spring water heating operation control module are arranged in the controller, and the control method comprises the following steps:

[0013] S1, an operator checks the operation state of each device to ensure that each device can normally operate;

[0014] S2, before starting the corresponding operation control module, ensure that each electric control valve, circulating water pump, heat recovery type air source heat pump and water source heat pump are in the closed state, at the same time, ensure that the hot spring raw water insulation tank is filled with hot spring raw water;

[0015] S3 staff according to seasonal cycle, start the controller in the heating season operation control module or air conditioning season operation control module or hot spring water heating operation control module;

[0016] In the heating season operation control module running process, staff set the highest heating temperature T1 in the hot spring raw water insulation tank, the lowest heating temperature T2 of hot spring wastewater, and then the controller runs the first start-up program. In the first start-up program running, the second electric control valve, the third electric control valve are in the open state, the heat recovery type air source heat pump and the first circulating water pump are in the running state, so as to realize the continuous circulation heating of the hot spring water in the hot spring raw water insulation tank by using the heat recovery type air source heat pump. In the circulation heating process, the temperature T3 monitored by the first temperature transmitter is compared with T1, when T3 < T1, the circulation heating process is continued, when T3 ≥ T1, the circulation heating process is stopped, the second electric control valve, the third electric control valve, the heat recovery type air source heat pump and the first circulating water pump are closed. After running the first start-up program, the controller starts the heat recovery type air source heat pump, the tenth electric control valve, the eleventh electric control valve and the fourth circulating water pump again, and uses the heat recovery type air source heat pump to continuously heat the building heating / air conditioning terminal. In the above continuous heating process, when T3 < T1, T2 is less than the temperature T4 monitored by the fourth temperature transmitter, the hot spring wastewater insulation tank is full of wastewater and is in the valley electricity period, the controller runs the hot spring water heating process using waste heat. At this time, the fourth electric control valve, the fifth electric control valve, the first electric control valve, the second circulating water pump, the third circulating water pump, the water source heat pump and the first circulating water pump are opened, and then the waste heat heating hot spring raw water process is carried out. In the above heating process, when T3 ≥ T1 and T4 < T2, the first circulating water pump, the second circulating water pump, the third circulating water pump and the water source heat pump are stopped; when T3 ≥ T1 and T4 ≥ T2, the first electric control valve is closed, and the eighth electric control valve and the sixth electric control valve are opened. At this time, the waste heat heating mode for building heating / air conditioning terminal is run; when T3 < T1 and T4 < T2, the controller runs the first start-up program again, and then the water in the hot spring raw water insulation tank is heated to T3 temperature value.

[0017] In the air conditioning season operation control module running process, the staff set the highest heating temperature T1 of the hot spring raw water heat preservation box, the lowest heating temperature T2 of the hot spring wastewater, then the controller runs the first start-up program, in the first start-up program running, the second electric control valve, the third electric control valve are in the open state, the heat recovery type air source heat pump and the first circulating water pump are in the running state, so as to realize the continuous circulation heating of the hot spring water in the hot spring raw water heat preservation box by using the heat recovery type air source heat pump, in the circulation heating process, the temperature T3 monitored by the first temperature transmitter is compared with T1, when T3 < T1, the circulation heating process is continued, when T3 ≥ T1, the circulation heating process is stopped, the second electric control valve, the third electric control valve, the heat recovery type air source heat pump and the first circulating water pump are all closed; after running the first start-up program, the controller starts the heat recovery type air source heat pump, the tenth electric control valve, the eleventh electric control valve and the fourth circulating water pump again, and uses the heat recovery type air source heat pump to continuously supply cold to the building heating / air conditioning terminal, in the above continuous cooling process, when the time period is not in the valley electricity time period, and the water temperature in the hot spring raw water heat preservation box is lower than 30℃, the controller opens the second electric control valve, the third electric control valve and the first circulating water pump, and then uses the condensing heat of the heat recovery type air source heat pump to preheat the hot spring raw water, when the time period is in the valley electricity time period, T3 < T1, T2 is less than the temperature T4 monitored by the fourth temperature transmitter and the four conditions that the hot spring wastewater heat preservation box is full of wastewater are all met, the controller runs the hot spring water heating process using waste heat, at this time, the fourth electric control valve, the fifth electric control valve, the seventh electric control valve, the ninth electric control valve, the second circulating water pump, the third circulating water pump, the water source heat pump, the first circulating water pump and the first electric control valve are all opened, in the above heating process, when T3 ≥ T1, the first circulating water pump, the second circulating water pump, the third circulating water pump and the water source heat pump are stopped; when T3 < T1, and T4 < T2, the controller runs the first start-up program again, and then heats the water in the hot spring raw water heat preservation tank to T3 temperature value;

[0018] In the hot spring water heating operation control module operation process, the staff sets the highest heating temperature T1 of the hot spring raw water heat preservation box, the lowest heating temperature T2 of the hot spring waste water, the controller runs the first start-up program, in the first start-up program operation, the second electric control valve, the third electric control valve are in the open state, the heat recovery type air source heat pump and the first circulating water pump are in the running state, so as to realize the continuous circulation heating of the hot spring water in the hot spring raw water heat preservation box by the heat recovery type air source heat pump, in the circulation heating process, the temperature T3 monitored by the first temperature transmitter is compared with T1, when T3 < T1, the circulation heating process is continued, when T3 >= T1, the circulation heating process is stopped; after the first start-up program is run, when T3 < T1, T2 is less than the temperature T4 monitored by the fourth temperature transmitter, the hot spring waste water heat preservation box is full of waste water and is in the valley electricity period, the controller runs the hot spring water heating operation process using waste heat, at this time, the fourth electric control valve, the fifth electric control valve, the first electric control valve, the second circulating water pump, the third circulating water pump, the water source heat pump and the first circulating water pump are opened, and then the waste heat heating hot spring raw water process is carried out, in the above heating process, when T3 >= T1, the first circulating water pump, the second circulating water pump, the third circulating water pump and the water source heat pump are stopped; when T3 < T1 and T4 < T2, the controller runs the first start-up program again, and then the water in the hot spring raw water heat preservation tank is heated to the temperature value T3.

[0019] The beneficial effects of the present application are: the system structure is simple, and is convenient to build in the hotel; in the winter heating season, the water source heat pump can heat the hot spring raw water by using the waste heat of the hot spring waste water, so as to reduce the heating energy consumption of the hot spring raw water, after the heating of the hot spring raw water is completed by using the waste heat of the hot spring waste water, the water source heat pump can also use the waste heat of the hot spring waste water to realize the heating of the building terminal, so as to reduce the load of the heat recovery type air source heat pump, and then reduce the power consumption of the heat recovery type air source heat pump, the water source heat pump runs in the valley electricity stage, which can effectively reduce the operation cost; in the air conditioning refrigeration season, the condensing heat of the heat recovery type air source heat pump can realize the preheating of the hot spring raw water, and the hot spring raw water preheated is heated again by the water source heat pump through the waste heat of the hot spring waste water and the heat discharged from the building terminal, so as to greatly reduce the heating energy consumption of the hot spring raw water, and then reduce the heating cost of the hot spring water. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are part of the preferred embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 System schematic diagram of the present application;

[0022] In the figure: 1 heat recovery type air source heat pump, 2 hot spring wastewater insulation box, 3 first heat exchanger, 4 hot spring raw water insulation box, 5 water source heat pump, 6 building heating / air conditioning heat exchanger, 7 building heating / air conditioning terminal, 101 first pipeline, 102 second pipeline, 103 third pipeline, 104 fourth pipeline, 105 fifth pipeline, 106 sixth pipeline, 107 seventh pipeline, 108 eighth pipeline, 109 ninth pipeline, 110 tenth pipeline, 111 eleventh pipeline, 112 twelfth pipeline, 113 thirteenth pipeline, 114 fourteenth pipeline, 115 fifteenth pipeline, 116 sixteenth pipeline, 117 seventeenth pipeline, 201 first circulating water pump, 202 second circulating water pump, 203 third circulating water pump, 204 fourth circulating water pump, 301 first electric control valve, 302 second electric control valve, 303 third electric control valve, 304 fourth electric control valve, 305 fifth electric control valve, 306 sixth electric control valve, 307 seventh electric control valve, 308 eighth electric control valve, 309 ninth electric control valve, 310 tenth electric control valve, 311 eleventh electric control valve, 401 first temperature transmitter, 402 second temperature transmitter, 403 third temperature transmitter, 404 fourth temperature transmitter, 405 fifth temperature transmitter, 406 sixth temperature transmitter, 407 seventh temperature transmitter, 408 eighth temperature transmitter, 409 ninth temperature transmitter, 410 tenth temperature transmitter, 411 eleventh temperature transmitter, 412 twelfth temperature transmitter. DETAILED DESCRIPTION

[0023] The specific embodiments will be described below with reference to the accompanying drawings. Figure 1 The technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only some of the preferred embodiments of the present application, not all. Those skilled in the art can make similar modifications without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] A heat recovery type hotel cold, hot and hot spring hot water supply system (as shown in Figure 1The system comprises a heat recovery type air source heat pump 1, a hot spring waste water heat preservation tank 2, a first heat exchanger 3, a hot spring raw water heat preservation tank 4, a water source heat pump 5, a building heating / air conditioning heat exchanger 6, a building heating / air conditioning terminal 7, and a controller. In practical applications, the first heat exchanger 3 and the building heating / air conditioning heat exchanger 6 can be plate heat exchangers available on the market, and the water source heat pump 5 can be a screw water source heat pump. The heat recovery type air source heat pump 1, the plate heat exchanger and the screw water source heat pump are all mature products in the field, and thus the structure and working principle of the three are not described in detail. A first circulating pipeline is arranged between the heat recovery type air source heat pump 1, the water source heat pump 5 and the hot spring raw water heat preservation tank 4, and is used to realize the circulation of hot spring water between the heat recovery type air source heat pump 1, the water source heat pump 5 and the hot spring raw water heat preservation tank 4 or between the water source heat pump 5 and the hot spring raw water heat preservation tank 4. The hot spring raw water in the hot spring raw water heat preservation tank can be heated by the guiding effect of the first circulating pipeline. A second circulating pipeline is arranged between the hot spring waste water heat preservation tank 2 and the first heat exchanger 3, and is used to realize the heat exchange between the hot spring waste water and the first heat exchanger 3. A third circulating pipeline is arranged between the first heat exchanger 3 and the water source heat pump 5, and is used to realize the heat exchange between the first heat exchanger 3 and the water source heat pump 5. A fourth circulating pipeline is arranged between the building heating / air conditioning heat exchanger 6 and the first circulating pipeline and the second circulating pipeline, and is used to realize the through connection between the building heating / air conditioning heat exchanger 6 and the first circulating pipeline or the third circulating pipeline. A fifth circulating pipeline is arranged between the heat recovery type air source heat pump 1, the building heating / air conditioning terminal 7 and the building heating / air conditioning heat exchanger 6, and is used to realize the circulation of a heat transfer medium between the heat recovery type air source heat pump 1, the building heating / air conditioning terminal 7 and the building heating / air conditioning heat exchanger 6. The heat recovery type air source heat pump 1 can be used to heat or cool the building heating / air conditioning terminal 7 by using the fifth circulating pipeline. The controller is used to control the operation of the heat recovery type air source heat pump 1, the water source heat pump 5, the first circulating pipeline, the second circulating pipeline, the third circulating pipeline, the fourth circulating pipeline and the fifth circulating pipeline.In the winter heating season, the water source heat pump can use the waste heat of the hot spring wastewater to heat the hot spring raw water, thereby reducing the energy consumption for heating the hot spring raw water. After the waste heat of the hot spring wastewater is used to heat the hot spring raw water, the water source heat pump can further use the waste heat of the hot spring wastewater to heat the building terminal, thereby reducing the load of the heat recovery type air source heat pump, and in turn reducing the power consumption of the heat recovery type air source heat pump. The water source heat pump operates in the valley electricity stage, which can effectively reduce the operation cost. In the air conditioning cooling season, the condensing heat of the heat recovery type air source heat pump can be used to preheat the hot spring raw water. After preheating, the hot spring raw water is heated again by the water source heat pump through the waste heat of the hot spring wastewater and the heat discharged from the building terminal, thereby greatly reducing the energy consumption for heating the hot spring raw water, and in turn reducing the heating cost of the hot spring water.

[0025] On the basis of the above embodiment, the specific implementation of the first circulating pipeline is that the first circulating pipeline comprises a first pipeline 101, a second pipeline 102, a third pipeline 103, a fourth pipeline 104, and a first circulating water pump 201. The first pipeline 101 and the second pipeline 102 realize the through connection of the heat release side of the water source heat pump 5 and the hot spring raw water insulation tank 4. The first circulating water pump 201 is arranged on the first pipeline 101. The first circulating water pump 201 is used to realize the flow of the hot spring raw water between the heat release side of the water source heat pump 5 and the hot spring raw water insulation tank 4, thereby realizing the heating of the hot spring raw water. The third pipeline 103 and the fourth pipeline 104 realize the through connection of the heat recovery type air source heat pump 1 and the second pipeline 102. A first electric control valve 301 is arranged between the connection position of the third pipeline 103 and the second pipeline 102 and the connection position of the fourth pipeline 104 and the second pipeline 102. A second electric control valve 302 and a third electric control valve 303 are arranged on the third pipeline 103 and the fourth pipeline 104, respectively. In actual application, the controller controls the working states of the heat recovery type air source pump 1, the first circulating water pump 201, the water source heat pump 5, the first electric control valve 301, the second electric control valve 302, and the third electric control valve 303 according to the set program. The heating of the hot spring water in the hot spring raw water insulation tank 4 by the heat recovery type air source pump 1 can be realized, thereby realizing the water demand of the hotel hot spring water.

[0026] On the basis of the above embodiment, the specific implementation of the second circulating pipeline is that the second circulating pipeline comprises a fifth pipeline 105, a sixth pipeline 106, and a second circulating water pump 202. The fifth pipeline 105 and the sixth pipeline 106 realize the through connection of the hot spring wastewater insulation tank 2 and the heat absorption side of the first heat exchanger 3. The second circulating water pump 202 is arranged on the fifth pipeline 105. The second circulating water pump 202 is used to realize the flow of the hot spring wastewater between the hot spring wastewater insulation tank 2 and the heat absorption side of the first heat exchanger 3, thereby realizing the absorption of the waste heat of the hot spring wastewater.

[0027] On the basis of the above-mentioned embodiment, the specific implementation of the third circulation pipeline is that the third circulation pipeline comprises a seventh pipeline 107, an eighth pipeline 108 and a third circulating water pump 203, the seventh pipeline 107 and the eighth pipeline 108 realize the through connection of the heat release side of the first heat exchanger 3 and the heat absorption side of the water source heat pump 5, the third circulating water pump 203 is arranged on the seventh pipeline 107, a fourth electric control valve 304 and a fifth electric control valve 305 are arranged on the seventh pipeline 107 and the eighth pipeline 108 respectively, when the fourth electric control valve 304 and the fifth electric control valve 305 are both in the open state, the third circulating water pump 203 can realize the circulation of the heat exchange medium between the heat release side of the first heat exchanger 3 and the heat absorption side of the water source heat pump 5, thereby realizing the supply of the low-quality heat source of the water source heat pump 5.

[0028] On the basis of the above-mentioned embodiment, the specific implementation of the fourth circulation pipeline is that the fourth circulation pipeline comprises a ninth pipeline 109 and a tenth pipeline 110, one end of the ninth pipeline 109 and the tenth pipeline 110 is respectively connected with one side of the building heating / air conditioning heat exchanger, the other end of the ninth pipeline 109 is connected with the fourth pipeline 104 and the seventh pipeline 107 through a parallel connection of an eleventh pipeline 111 and a twelfth pipeline 112, the other end of the tenth pipeline 110 is connected with the third pipeline 103 and the eighth pipeline 108 through a parallel connection of a thirteenth pipeline 113 and a fourteenth pipeline 114, a sixth electric control valve 306, a seventh electric control valve 307, an eighth electric control valve 308 and a ninth electric control valve 309 are arranged on the eleventh pipeline 111, the twelfth pipeline 112, the thirteenth pipeline 113 and the fourteenth pipeline 114 respectively. In actual application, when the sixth electric control valve 306 and the eighth electric control valve 308 are closed, the building heating / air conditioning heat exchanger is connected with the third circulation pipeline; when the seventh electric control valve 307 and the ninth electric control valve 309 are closed, the building heating / air conditioning heat exchanger is connected with the second circulation pipeline.

[0029] On the basis of the above-mentioned embodiments, the specific implementation of the fifth circulating pipeline is that: the fifth circulating pipeline comprises a fifteenth pipeline 115, a sixteenth pipeline 116 and a seventeenth pipeline 117, the fifteenth pipeline 115 realizes the through connection of the heat recovery type air source heat pump 1 and the building heating / air conditioning heat exchanger 6, the sixteenth pipeline 116 realizes the through connection of the heat recovery type air source heat pump 1 and the building heating / air conditioning terminal 7, and the seventeenth pipeline 117 realizes the through connection of the building heating / air conditioning terminal 7 and the building heating / air conditioning heat exchanger 6, a fourth circulating water pump 204 is arranged on the seventeenth pipeline 117, and a tenth electric control valve 110 and an eleventh electric control valve 111 are arranged on the fifteenth pipeline 115 and the sixteenth pipeline 116, respectively. The fourth circulating water pump 204 is used to realize the circulating flow of the heat exchange medium between the heat recovery type air source pump 1, the building heating / air conditioning terminal 7 and the building heating / air conditioning heat exchanger 6, so as to realize the heating or refrigeration of the building heating / air conditioning terminal 7, and then realize the cold and heat demand of the hotel.

[0030] In order to facilitate the temperature monitoring of the controller on each operating pipeline, so as to adjust the operating load of each device in real time according to the temperature monitoring data, therefore, in this embodiment, a first temperature transmitter 401 and a second temperature transmitter 402 are arranged on the first pipeline 101 and the second pipeline 102, respectively, a third temperature transmitter 403 and a fourth temperature transmitter 404 are arranged on the fifth pipeline 105 and the sixth pipeline 106, respectively, a fifth temperature transmitter 405 and a sixth temperature transmitter 406 are arranged on the seventh pipeline 107 and the eighth pipeline 108, respectively, a seventh temperature transmitter 407 and an eighth temperature transmitter 408 are arranged on the ninth pipeline 109 and the tenth pipeline 110, respectively, a ninth temperature transmitter 409 and a tenth temperature transmitter 410 are arranged on the fifteenth pipeline 115 and the sixteenth pipeline 116, respectively, and an eleventh temperature transmitter 411 and a twelfth temperature transmitter 412 are arranged at two ends of the seventeenth pipeline 117, and the above-mentioned temperature transmitters all transmit the real-time monitored temperature data to the controller.

[0031] The application also provides a heat recovery type hotel cold, hot and hot spring hot water supply system control method, which comprises the above-mentioned heat recovery type hotel cold, hot and hot spring hot water supply system, a heating season operation control module, an air conditioning season operation control module and a hot spring water heating operation control module are arranged in the controller, and the method further comprises the following steps:

[0032] S1, an operator checks the operating state of each device to ensure that each device can normally operate;

[0033] S2 Before starting the corresponding operation control module, ensure that each electric control valve, circulating water pump, heat recovery type air source heat pump 1 and water source heat pump 5 are in the closed state, at the same time, ensure that the hot spring raw water storage tank 4 is filled with hot spring raw water; in practical application, generally, a water supply storage tank for storing hot spring raw water heated to a specified temperature is built in the hotel, when the hot spring water in the hot spring raw water storage tank 4 is heated to a specified temperature, at the same time, the water supply storage tank meets the water supply conditions, then the hot spring water in the hot spring raw water storage tank 4 can be supplied to the water supply storage tank according to the demand, after the supply is completed, the hot spring raw water is injected into the hot spring raw water storage tank 4, and after the water is filled, the continuous injection of hot spring raw water is stopped.

[0034] S3 The worker starts the heating season operation control module or the air conditioning season operation control module or the hot spring water heating operation control module in the controller according to the seasonal cycle; in practical application, generally, the air conditioning season operation control module is started in summer, the heating season operation control module is started in winter, and the hot spring water heating operation control module is started in spring and autumn.

[0035] In the heating season operation control module running process, the staff set the highest heating temperature T1 in the hot spring raw water insulation box 4, the hot spring wastewater minimum heating temperature T2, and then the controller runs the first start-up program. In the first start-up program running, the second electric control valve 302, the third electric control valve 303 are in the open state, the heat recovery type air source heat pump 1 and the first circulating water pump 201 are in the running state, so as to realize the continuous circulation heating of the hot spring water in the hot spring raw water insulation box 4 by using the heat recovery type air source heat pump 1. In the process of circulating heating, the temperature T3 monitored by the first temperature transmitter is compared with T1. When T3 < T1, the circulating heating process is continued. When T3 ≥ T1, the circulating heating process is stopped, and the second electric control valve 302, the third electric control valve 303, the heat recovery type air source heat pump 1 and the first circulating water pump 401 are closed. After running the first start-up program, the controller starts the heat recovery type air source heat pump 1, the tenth electric control valve 310, the eleventh electric control valve 311 and the fourth circulating water pump 204, and uses the heat recovery type air source heat pump 1 to continuously heat the building heating / air conditioning terminal. In the above continuous heating process, when T3 < T1, T2 is less than the temperature T4 monitored by the fourth temperature transmitter 404, the hot spring wastewater insulation box 2 is full of wastewater and is in the valley electricity period, the controller runs the hot spring water heating process using waste heat. At this time, the fourth electric control valve 304, the fifth electric control valve 305, the first electric control valve 301, the second circulating water pump 202, the third circulating water pump 203, the water source heat pump 5 and the first circulating water pump 201 are opened, and then the waste heat heating process of the hot spring raw water is carried out, that is, the water source heat pump 5 uses the low-quality waste heat of the hot spring wastewater to heat the hot spring raw water, thereby effectively saving the heating energy of the hot spring raw water. In the above heating process, when T3 ≥ T1 and T4 < T2, the first circulating water pump 201, the second circulating water pump 202, the third circulating water pump 203 and the water source heat pump 5 are stopped. That is, after the hot spring raw water is heated, the waste heat of the wastewater cannot meet the heating requirement, and the further use of the waste heat is stopped. When T3 ≥ T1 and T4 ≥ T2, the first electric control valve 301 is closed, and the eighth electric control valve 308 and the sixth electric control valve 306 are opened. At this time, the waste heat is used to assist the heating of the building heating / air conditioning terminal. That is, after the hot spring raw water is heated, the hot spring wastewater still has heating conditions. At this time, the waste heat of the hot spring wastewater is converted by the water source heat pump 5 and supplied to the building heating / air conditioning heat exchanger 6, thereby finally realizing the heating of the building heating / air conditioning terminal. At this time, the running load of the heat recovery type air source heat pump 1 can be reduced, thereby realizing the energy saving purpose. When T3 < T1 and T4 < T2, the controller runs the first start-up program again, thereby heating the water in the hot spring raw water insulation tank to T3. That is, after the waste heat of the hot spring wastewater is used up, the hot spring raw water has not been heated to the standard. At this time, the heat recovery type air source pump 1 is used to continue heating the hot spring raw water, so as to ensure the normal supply of hot spring water.

[0036] In the air conditioning season operation control module running process, the staff set the highest heating temperature T1 of the hot spring raw water heat preservation tank, the lowest heating temperature T2 of the hot spring wastewater, then the controller runs the first start-up program, in the first start-up program running, the second electric control valve 302, the third electric control valve 303 are in the open state, the heat recovery type air source heat pump 1 and the first circulating water pump 201 are in the running state, so as to realize the continuous circulation heating of the hot spring water in the hot spring raw water heat preservation tank 4 by using the heat recovery type air source heat pump 1, in the circulation heating process, the temperature T3 monitored by the first temperature transmitter is compared with T1, when T3 < T1, the circulation heating process is continued, when T3 ≥ T1, the circulation heating process is stopped, then the hot spring raw water heating process is completed, the second electric control valve 302, the third electric control valve 303, the heat recovery type air source heat pump 1 and the first circulating water pump 201 are all closed; after running the first start-up program, the controller starts the heat recovery type air source heat pump 1, the tenth electric control valve 310, the eleventh electric control valve 311 and the fourth circulating water pump 204, and uses the heat recovery type air source heat pump 1 to continuously supply cold to the building heating / air conditioning terminal 7, in the above-mentioned continuous cold supply process, when the time period is not in the valley electricity time period, and the water temperature in the hot spring raw water heat preservation tank 4 is lower than 30℃, the controller opens the second electric control valve 302, the third electric control valve 303 and the first circulating water pump 201, and then uses the condensing heat of the heat recovery type air source heat pump 1 to realize the preheating of the hot spring raw water, so as to achieve the energy saving purpose of the hot spring raw water heating, when the time period is in the valley electricity time period, T3 < T1, T2 is less than the temperature T4 monitored by the fourth temperature transmitter and the hot spring wastewater heat preservation tank 4 is full of wastewater, the controller runs the hot spring water heating process using waste heat, at this time, the fourth electric control valve 304, the fifth electric control valve 305, the seventh electric control valve 307, the ninth electric control valve 309, the second circulating water pump 202, the third circulating water pump 203, the water source heat pump 5, the first circulating water pump 201 and the first electric control valve 301 are all opened, in the above-mentioned heating process, when T3 ≥ T1, the running of the first circulating water pump 201, the second circulating water pump 202, the third circulating water pump 203 and the water source heat pump 5 is stopped, that is, the waste heat of the hot spring wastewater and the discharge heat of the building heating / air conditioning terminal 7 have completed the standard heating of the hot spring water; when T3 < T1 and T4 < T2, the controller runs the first start-up program again, and then realizes the heating of the water in the hot spring raw water heat preservation tank to the temperature value T3; that is, the waste heat of the hot spring wastewater and the discharge heat of the building heating / air conditioning terminal 7 have not realized the standard heating of the hot spring water, at this time, only the heat recovery type air source pump 1 can be used to continue the heating of the hot spring raw water, so as to ensure the normal supply of the hot spring water;

[0037] In the hot spring water heating operation control module operation process, the staff sets the highest heating temperature T1 of the hot spring raw water insulation box 4, the lowest heating temperature T2 of the hot spring waste water, the controller runs the first start-up program, in the first start-up program operation, the second electric control valve 302, the third electric control valve 303 are in the open state, the heat recovery type air source heat pump 1 and the first circulating water pump 201 are in the running state, so as to realize the continuous circulation heating of the hot spring water in the hot spring raw water insulation box by using the heat recovery type air source heat pump 1, in the circulation heating process, the temperature T3 monitored by the first temperature transmitter is compared with T1, when T3 < T1, the circulation heating process is continued, when T3 ≥ T1, the circulation heating process is stopped; after running the first start-up program, when T3 < T1, T2 is less than the temperature T4 monitored by the fourth temperature transmitter, the hot spring waste water insulation box is full of waste water and is in the valley electricity period, the four conditions are met, the controller runs the waste heat to realize the hot spring water heating operation process, at this time, the fourth electric control valve 304, the fifth electric control valve 305, the first electric control valve 301, the second circulating water pump 202, the third circulating water pump 203, the water source heat pump 5 and the first circulating water pump 201 are opened, and then the waste heat heating hot spring raw water process is carried out, in the above heating process, when T3 ≥ T1, the operation of the first circulating water pump 201, the second circulating water pump 202, the third circulating water pump 203 and the water source heat pump 5 is stopped, that is, the waste heat of the hot spring waste water is used to complete the standard heating of the hot spring raw water; when T3 < T1 and T4 < T2, the controller runs the first start-up program again, and then realizes the heating of the water in the hot spring raw water insulation tank to the T3 temperature value, that is, the waste heat of the hot spring waste water is not used to complete the standard heating of the hot spring raw water, at this time, the heat recovery type air source pump 1 is used to continue heating the hot spring raw water, and then the normal supply of the hot spring raw water is ensured.

[0038] In addition to the technical features described in the specification, they are known to those skilled in the art.

[0039] The preferred embodiments and examples of the application are described in detail above in combination with the drawings, but the application is not limited to the above embodiments and examples. Those skilled in the art can make several improvements and modifications without departing from the concept of the application, and these improvements and modifications should also be considered as the protection scope of the application.

Claims

1. A control method for a heat recovery type hotel cold, hot, and spa hot water supply system, characterized by, The application relates to a heat-recovery type hotel cold, hot and hot spring water supply system, which comprises a heat-recovery type air source heat pump, a hot spring waste water heat preservation box, a first heat exchanger, a hot spring raw water heat preservation box, a water source heat pump, a building heating / air conditioning heat exchanger, building heating / air conditioning terminals and a controller. A first circulating pipeline is arranged between the heat-recovery type air source heat pump, the water source heat pump and the hot spring raw water heat preservation box, and is used for realizing the circulation of hot spring water between the heat-recovery type air source heat pump, the water source heat pump and the hot spring raw water heat preservation box or the circulation of hot spring water between the water source heat pump and the hot spring raw water heat preservation box. A second circulating pipeline is arranged between the hot spring waste water heat preservation box and the first heat exchanger, a third circulating pipeline is arranged between the first heat exchanger and the water source heat pump, and a fourth circulating pipeline is arranged between the building heating / air conditioning heat exchanger and the first and second circulating pipelines. The fourth circulating pipeline is used for realizing the through connection between the building heating / air conditioning heat exchanger and the first or third circulating pipeline. A fifth circulating pipeline is arranged between the heat-recovery type air source heat pump, the building heating / air conditioning terminals and the building heating / air conditioning heat exchanger, and is used for realizing the circulation of heat transfer medium between the heat-recovery type air source heat pump, the building heating / air conditioning terminals and the building heating / air conditioning heat exchanger. The controller is used for controlling the operation of the heat-recovery type air source heat pump, the water source heat pump, the first, second, third, fourth and fifth circulating pipelines. The first circulating pipeline comprises a first pipeline, a second pipeline, a third pipeline, a fourth pipeline and a first circulating water pump. The first pipeline and the second pipeline realize the through connection between the heat release side of the water source heat pump and the hot spring raw water heat preservation box. The first circulating water pump is arranged on the first pipeline. The third pipeline and the fourth pipeline realize the through connection between the heat-recovery type air source heat pump and the second pipeline. A first electric control valve is arranged between the connection position of the third pipeline and the second pipeline and the connection position of the fourth pipeline and the second pipeline. A second electric control valve and a third electric control valve are arranged on the third pipeline and the fourth pipeline respectively. The second circulating pipeline comprises a fifth pipeline, a sixth pipeline and a second circulating water pump. The fifth pipeline and the sixth pipeline realize the through connection between the hot spring waste water heat preservation box and the heat absorption side of the first heat exchanger. The second circulating water pump is arranged on the fifth pipeline. The third circulating pipeline comprises a seventh pipeline, an eighth pipeline and a third circulating water pump. The seventh pipeline and the eighth pipeline realize the through connection between the heat release side of the first heat exchanger and the heat absorption side of the water source heat pump. The third circulating water pump is arranged on the seventh pipeline. A fourth electric control valve and a fifth electric control valve are arranged on the seventh pipeline and the eighth pipeline respectively.The fourth circulation pipeline comprises a ninth pipeline and a tenth pipeline, one end of the ninth pipeline and the tenth pipeline is respectively penetrated with one side of the building heating / air conditioning heat exchanger, the eleventh pipeline and the twelfth pipeline which are led out from the other end of the ninth pipeline in parallel mode are respectively penetrated with the fourth pipeline and the seventh pipeline, the thirteenth pipeline and the fourteenth pipeline which are led out from the other end of the tenth pipeline in parallel mode are respectively penetrated with the third pipeline and the eighth pipeline, a sixth electric control valve, a seventh electric control valve, an eighth electric control valve and a ninth electric control valve are respectively arranged on the eleventh pipeline, the twelfth pipeline, the thirteenth pipeline and the fourteenth pipeline; the fifth circulation pipeline comprises a fifteenth pipeline, a sixteenth pipeline and a seventeenth pipeline, the fifteenth pipeline realizes the penetration of the heat recovery type air source heat pump and the building heating / air conditioning heat exchanger, the sixteenth pipeline realizes the penetration of the heat recovery type air source heat pump and the building heating / air conditioning terminal, the seventeenth pipeline realizes the penetration of the building heating / air conditioning terminal and the building heating / air conditioning heat exchanger, a fourth circulating water pump is arranged on the seventeenth pipeline, a tenth electric control valve and an eleventh electric control valve are respectively arranged on the fifteenth pipeline and the sixteenth pipeline; a first temperature transmitter and a second temperature transmitter are respectively arranged on the first pipeline and the second pipeline, a third temperature transmitter and a fourth temperature transmitter are respectively arranged on the fifth pipeline and the sixth pipeline, a fifth temperature transmitter and a sixth temperature transmitter are respectively arranged on the seventh pipeline and the eighth pipeline, a seventh temperature transmitter and an eighth temperature transmitter are respectively arranged on the ninth pipeline and the tenth pipeline, a ninth temperature transmitter and a tenth temperature transmitter are respectively arranged on the fifteenth pipeline and the sixteenth pipeline, an eleventh temperature transmitter and a twelfth temperature transmitter are respectively arranged on both ends of the seventeenth pipeline; a heating season operation control module, an air conditioning season operation control module and a hot spring water heating operation control module are arranged in the controller, and the method further comprises the following steps: S1 The worker checks the running state of each device to ensure that each device can run normally; S2 Before starting the corresponding operation control module, ensure that each electric control valve, circulating water pump, heat recovery air source heat pump and water source heat pump are in the closed state, at the same time, ensure that the hot spring raw water insulation box is filled with hot spring raw water; S3 The worker starts the heating season operation control module or the air conditioning season operation control module or the hot spring water heating operation control module in the controller according to the seasonal cycle; In the process of running the heating season operation control module, the worker sets the maximum heating temperature T1 of the hot spring raw water insulation box and the minimum heating temperature T2 of the hot spring wastewater, and then the controller runs the first start-up program. In the first start-up program, the second electric control valve, the third electric control valve are in the open state, and the heat recovery air source heat pump and the first circulating water pump are in the running state, so as to realize the continuous circulation heating of the hot spring water in the hot spring raw water insulation box by using the heat recovery air source heat pump. In the process of circulation heating, the temperature T3 monitored by the first temperature transmitter is compared with T1, when T3 < T1, the circulation heating process is continued, when T3 ≥ T1, the circulation heating process is stopped, and the second electric control valve, the third electric control valve, the heat recovery air source heat pump and the first circulating water pump are closed. After running the first start-up program, the controller starts the heat recovery air source heat pump, the tenth electric control valve, the eleventh electric control valve and the fourth circulating water pump, and uses the heat recovery air source heat pump to continuously heat the building heating / air conditioning terminal. In the above continuous heating process, when T3 < T1, T2 is less than the temperature T4 monitored by the fourth temperature transmitter, the hot spring wastewater insulation box is full of wastewater and is in the valley electricity period, the controller runs the waste heat heating process. At this time, the fourth electric control valve, the fifth electric control valve, the first electric control valve, the second circulating water pump, the third circulating water pump, the water source heat pump and the first circulating water pump are opened, and then the waste heat heating process is carried out. In the process of running the above heating process, when T3 ≥ T1 and T4 < T2, the first circulating water pump, the second circulating water pump, the third circulating water pump and the water source heat pump are stopped; when T3 ≥ T1 and T4 ≥ T2, the first electric control valve is closed, and the eighth electric control valve and the sixth electric control valve are opened, at this time, the waste heat heating process is carried out to assist the heating of the building heating / air conditioning terminal; When T3 < T1 and T4 < T2, the controller runs the first start-up program again, and then heats the water in the hot spring raw water insulation tank to T3 temperature value. In the air conditioning season operation control module running process, the staff set the highest heating temperature T1 of the hot spring raw water heat preservation box, the lowest heating temperature T2 of the hot spring wastewater, then the controller runs the first start-up program, in the first start-up program running, the second electric control valve, the third electric control valve are in the open state, the heat recovery type air source heat pump and the first circulating water pump are in the running state, so as to realize the continuous circulation heating of the hot spring water in the hot spring raw water heat preservation box by using the heat recovery type air source heat pump, in the circulation heating process, the temperature T3 monitored by the first temperature transmitter is compared with T1, when T3 < T1, the circulation heating process is continued, when T3 ≥ T1, the circulation heating process is stopped, the second electric control valve, the third electric control valve, the heat recovery type air source heat pump and the first circulating water pump are all closed; after running the first start-up program, the controller starts the heat recovery type air source heat pump, the tenth electric control valve, the eleventh electric control valve and the fourth circulating water pump again, and uses the heat recovery type air source heat pump to continuously supply cold to the building heating / air conditioning terminal, in the above continuous cooling process, when the time period is not in the valley electricity time period, and the water temperature in the hot spring raw water heat preservation box is lower than 30℃, the controller opens the second electric control valve, the third electric control valve and the first circulating water pump, and then uses the condensing heat of the heat recovery type air source heat pump to preheat the hot spring raw water, when the time period is in the valley electricity time period, T3 < T1, T2 is less than the temperature T4 monitored by the fourth temperature transmitter and the four conditions that the hot spring wastewater heat preservation box is full of wastewater are all met, the controller runs the hot spring water heating process using waste heat, at this time, the fourth electric control valve, the fifth electric control valve, the seventh electric control valve, the ninth electric control valve, the second circulating water pump, the third circulating water pump, the water source heat pump, the first circulating water pump and the first electric control valve are all opened, in the above heating process, when T3 ≥ T1, the first circulating water pump, the second circulating water pump, the third circulating water pump and the water source heat pump are stopped; when T3 < T1, and T4 < T2, the controller runs the first start-up program again, and then heats the water in the hot spring raw water heat preservation tank to T3 temperature value. In the hot spring water heating operation control module operation process, the staff sets the highest heating temperature T1 of the hot spring raw water heat preservation box, the lowest heating temperature T2 of the hot spring waste water, the controller runs the first start-up program, in the first start-up program operation, the second electric control valve, the third electric control valve are in the open state, the heat recovery type air source heat pump and the first circulating water pump are in the running state, so as to realize the continuous circulation heating of the hot spring water in the hot spring raw water heat preservation box by using the heat recovery type air source heat pump, in the circulation heating process, the temperature T3 monitored by the first temperature transmitter is compared with T1, when T3 < T1, the circulation heating process is continued, when T3 ≥ T1, the circulation heating process is stopped; after running the first start-up program, when T3 < T1, T2 is less than the temperature T4 monitored by the fourth temperature transmitter, the hot spring waste water heat preservation box is full of waste water and is in the valley electricity period, the four conditions are met, the controller runs the waste heat to realize the hot spring water heating operation process, at this time, the fourth electric control valve, the fifth electric control valve, the first electric control valve, the second circulating water pump, the third circulating water pump, the water source heat pump and the first circulating water pump are opened, and then the waste heat heating hot spring raw water process is carried out, in the above heating process, when T3 ≥ T1, the operation of the first circulating water pump, the second circulating water pump, the third circulating water pump and the water source heat pump is stopped; when T3 < T1, and T4 < T2, the controller runs the first start-up program again, and then realizes the heating of the water in the hot spring raw water heat preservation tank to the temperature value T3.

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