Medical energy-saving thermal energy system

Abstract

The utility model belongs to the technical field of water supply, and particularly relates to a medical energy-saving heat power energy system which comprises a heat power production unit and a heat power conveying unit, and the heat power production unit is composed of a gas-fired hot water unit, an air energy heat pump unit, a solar heat collector set and a constant-temperature water tank. The air energy heat pump unit and the solar heat collector set are both in two-way communication with the constant-temperature water tank through circulating pipelines. The hot water pipe is connected with a water outlet of the heat exchanger, and the water inlet end of the heat exchanger is respectively communicated with the constant-temperature water tank, the gas water heater unit and the water outlet end of the cold water pipe. Compared with the current mainstream energy-saving thought that renewable energy sources such as solar energy, wind energy and air energy are utilized to replace non-renewable energy sources such as electric power, fuel gas and coal-fired boilers, the technical scheme of the utility model is more convenient to directly build and apply in the current hospital; and the strict requirements of hospitals on the temperature of heating and domestic hot water can be efficiently and stably met.

Description

TECHNICAL FIELD

[0001] The utility model relates to water supply technology field, concretely is a medical energy -conserving heat energy system. BACKGROUND

[0002] The hospital as special public building, its heating system needs to satisfy the dual demand of heating and domestic hot water simultaneously. In view of the patient population including a large number of special population with low immunity or impaired body temperature regulation ability, it is extremely sensitive to indoor temperature fluctuation;At the same time, the storage of precision medical equipment, biological preparation and special medicine needs to strictly follow ISO14644 clean room standard, and the temperature fluctuation is required to be controlled within ±1 DEG C. The dual constraints make the hospital heating system design must surpass the conventional civil building standard, and form a unique technical system.

[0003] In the existing hospital heating system reconstruction scheme, the mainstream thought usually focuses on using renewable energy such as solar energy, wind energy, air energy to replace non-renewable energy such as electricity, gas and coal-fired boiler, so as to realize the energy saving and emission reduction target.

[0004] However, due to the significant difference of geographical and climatic conditions in China, the available natural energy in each region is different. In addition, the stability and precision of the hospital heating system are extremely high, and the current solar energy, air energy, wind energy and other energy conversion technologies are not mature enough in small-scale application, and their application mode mainly depends on the connection to the power grid after large-scale construction. Therefore, the independent application cases of these technologies in the hospital scene are not common.

[0005] Therefore, in order to respond to the national energy structure transformation strategy, the application proposes an energy-saving heat energy system suitable for hospital scene, which aims to efficiently and stably meet the heating and domestic hot water demand. UTILITY MODEL CONTENT

[0006] In view of the defects of the prior art, the utility model provides a medical energy -conserving heat energy system, which solves the problem of poor regional adaptability of current natural energy technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a medical energy -conserving heat energy system, comprising heat production unit and heat delivery unit, the heat production unit is composed of gas water heater unit, air energy heat pump unit, solar collector group and constant temperature water tank, and the air energy heat pump unit, solar collector group are both communicated with constant temperature water tank through circulation pipeline;

[0008] The heat delivery unit is composed of a heat exchanger, a hot water pipe, a cold water pipe and a return water pipe, the hot water pipe is connected to a water outlet of the heat exchanger, water inlet ends of the heat exchanger are respectively connected to a water outlet end of a constant temperature water tank, a gas water heater set and the cold water pipe, the water inlet end of the gas water heater set is connected to the water outlet end of the cold water pipe;

[0009] The water outlet end of the cold water pipe is also connected to the constant temperature water tank through a water supplement pump, and the return water pipe is connected to the constant temperature water tank through a return water pump;

[0010] The controller is electrically connected to a plurality of electromagnetic valves arranged on each pipeline, and an input end of the gas water heater set is electrically connected to an output end of the controller.

[0011] Compared with the current mainstream energy-saving idea of replacing non-renewable energy sources such as electricity, gas and coal-fired boilers with renewable energy sources such as solar energy, wind energy and air energy, the technical scheme is more convenient and direct to build and apply in current hospitals, and can efficiently and stably meet the strict requirements of hospitals on the temperature of heating and domestic hot water.

[0012] Preferably, a solar energy circulating pump is arranged on the first circulating pipeline connecting the solar energy collector set and the constant temperature water tank.

[0013] Preferably, the pipeline between the cold water pipe and the gas water heater set is a first cold water branch pipe, the pipeline between the cold water pipe and the constant temperature water tank is a second cold water branch pipe, a first three-way joint is arranged on the first cold water branch pipe, a circulating heating pipe is arranged between the heat exchanger and the cold water pipe, and the circulating heating pipe is connected to the first three-way joint.

[0014] Preferably, a circulating heating pump is arranged on the circulating heating pipe.

[0015] Preferably, the first cold water branch pipe and the second cold water branch pipe are connected to the cold water pipe through a second three-way joint, a water softener tank is arranged on the first cold water branch pipe and located between the first three-way joint and the second three-way joint, and the water supplement pump is connected to the cold water pipe.

[0016] Preferably, input ends of the gas water heater set, the water supplement pump and the circulating heating pump are electrically connected to an output end of the controller, temperature sensors are arranged in the heat exchanger and the constant temperature water tank, and output ends of the temperature sensors are connected to an input end of the controller.

[0017] Preferably, the electromagnetic valves include:

[0018] A first electromagnetic valve is arranged on the first cold water branch pipe and located between the first three-way joint and the gas water heater set.

[0019] A second electromagnetic valve is arranged on the circulating heating pipe.

[0020] A third electromagnetic valve is arranged on the first cold water branch pipe and between the first three-way joint and the second three-way joint.

[0021] Preferably, a liquid level meter is arranged in the constant temperature water tank, the electromagnetic valve further comprises a fourth electromagnetic valve arranged on the second cold water branch pipe, and an output end of the liquid level meter is electrically connected to an input end of the controller.

[0022] Preferably, the electromagnetic valve further comprises a fifth electromagnetic valve arranged on a pipeline connecting the constant temperature water tank and the heat exchanger.

[0023] Preferably, the heat exchanger comprises at least two, and hot water pipes connecting the heat exchangers are independent of each other.

[0024] Compared with the prior art, the medical energy-saving heat energy system has the following beneficial effects:

[0025] Compared with the current mainstream energy-saving idea of replacing non-renewable energy such as electricity, gas and coal-fired boiler with renewable energy such as solar energy, wind energy and air energy, the medical energy-saving heat energy system is more convenient and direct to build and apply in the current hospital, and can efficiently and stably meet the strict requirements of the hospital on the temperature of heating and domestic hot water. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 FIG. 1 is a structural schematic diagram of the medical energy-saving heat energy system;

[0027] Figure 2 FIG. 2 is a control schematic diagram of the medical energy-saving heat energy system.

[0028] In the drawings:

[0029] 1, heat production unit; 11, gas water heater unit; 12, air energy heat pump unit; 13, solar energy collector group; 131, solar energy circulating pump; 14, constant temperature water tank; 141, circulating pipeline; 142, liquid level meter;

[0030] 2, heat delivery unit; 21, heat exchanger; 22, hot water pipe; 23, cold water pipe; 231, water supplement pump; 232, first cold water branch pipe; 233, second cold water branch pipe; 234, first three-way joint; 235, circulating heating pipe; 236, circulating heating pump; 237, second three-way joint; 238, soft water tank; 24, return water pipe; 241, return water pump;

[0031] 3, controller;

[0032] 4, electromagnetic valve; 41, first electromagnetic valve; 42, second electromagnetic valve; 43, third electromagnetic valve; 44, fourth electromagnetic valve; 45, fifth electromagnetic valve;

[0033] 5, temperature sensor. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0035] Embodiment 1:

[0036] Please refer to Figures 1-2 The utility model provides the following technical schemes:

[0037] A medical energy-saving heat energy system, comprising a heat production unit 1 and a heat delivery unit 2, the heat production unit 1 is composed of a gas water heater unit 11, an air energy heat pump unit 12, a solar collector group 13 and a constant temperature water tank 14, the air energy heat pump unit 12 and the solar collector group 13 are both in bidirectional communication with the constant temperature water tank 14 through a circulating pipeline 141;

[0038] The heat delivery unit 2 is composed of a heat exchanger 21, a hot water pipe 22, a cold water pipe 23 and a return water pipe 24, the hot water pipe 22 is connected to the water outlet of the heat exchanger 21, the water inlet end of the heat exchanger 21 is respectively connected to the water outlet end of the constant temperature water tank 14, the gas water heater unit 11 and the cold water pipe 23; the water inlet end of the gas water heater unit 11 is connected to the water outlet end of the cold water pipe 23;

[0039] The water outlet end of the cold water pipe 23 is also connected to the constant temperature water tank 14 through a water supplementing pump 231, and the return water pipe 24 is connected to the constant temperature water tank 14 through a return water pump 241;

[0040] It also comprises a controller 3 and a plurality of electromagnetic valves 4 electrically connected to the controller 3, which are respectively arranged on each pipeline, and the input end of the gas water heater unit 11 is electrically connected to the output end of the controller 3.

[0041] As an optional implementation manner of the utility model, in the heat production unit 1, the air energy heat pump unit 12 utilizes ubiquitous air as heat source, extracts low-level heat energy from ambient air, consumes certain electric power, and circulates and heats the water in the constant-temperature water tank 14; and the solar collector directly captures solar radiation energy, converts it into heat energy to heat the working medium (water or antifreeze) in the collector, and then transfers the heat to the water in the circulating pipeline 141 through heat exchange; the low-temperature water in the constant-temperature water tank 14 is changed into usable medium-high temperature hot water through the air energy heat pump unit 12 and the solar collector group 13. It should be understood that the solar collector basically does not consume external electric power, and the air energy heat pump unit 12 consumes less electric power to provide heat compared with the electric heater.

[0042] When the hospital needs heating or hot water, assuming that the current weather conditions are not ideal (such as rainy days, cold nights, water peak, and extreme low-temperature heat pump efficiency), the solar collector group 13 and the air energy heat pump unit 12 cannot generate more heat, resulting in that the water temperature in the constant-temperature water tank 14 cannot meet the strict temperature standard in the hospital, then the gas water heater unit 11 can be started through the controller 3, at this time, the hot water with a certain temperature but not meeting the use conditions of the hospital in the constant-temperature water tank 14 flows into the gas water heater unit 11 and can be rapidly heated to quickly meet the temperature adjustment demand of the hospital for heating or domestic hot water, thereby guaranteeing the strict temperature fluctuation requirement in the hospital.

[0043] Of course, there are also good weather conditions, that is, the hot water temperature in the constant-temperature water tank 14 exceeds the use demand in the hospital, then the electromagnetic valve 4 on the cold water pipe 23 can be opened through the controller 3, so that the low-temperature cold water can flow into the heat exchanger 21 to cool and reduce the high hot water, so that its temperature is reduced to meet the hot water supply demand in the hospital.

[0044] It should be noted that the heat production unit 1 is a collection of heat production in the hospital, which should only include the gas water heater unit 11, the air energy heat pump unit 12 and the solar collector group 13, and does not include other parts that can heat water. The advantage of such limitation is that the gas water heater unit 11 is an instant heating mechanism, which has a more rapid temperature response compared to electric heaters. If an electric heater is used, it cannot meet the strict temperature requirements of the hospital. For the air energy heat pump unit 12 and the solar collector group 13, they are both directly converting heat from the air, and in combination, they can provide heat continuously. They can be miniaturized and configured in a separate building at present, and have high feasibility for such a hospital scenario. Renewable resources such as wind energy and geothermal energy are difficult to directly build and apply at present, and their conversion efficiency is not so high, especially for wind energy, which needs to be combined with a generator as an intermediate transfer. Large hospitals are usually built in cities, so wind power generators do not have high feasibility in practice.

[0045] In addition, the water supplement pump 231 can also directly supplement cold water to the constant temperature water tank 14, and the return water pipe 24 can guide the heating water or other heat water that can be recycled back to the constant temperature water tank 14. The constant temperature water tank 14 should be understood as a container with heat preservation function. Of course, the constant temperature water tank 14, the gas water heater unit 11, the air energy heat pump unit 12 and the solar collector group 13, as well as the controller 3, the electromagnetic valve 4 and the pump, are all very mature and well-known prior art in the art, and the present technical solution will not be further limited and described.

[0046] Compared with the current mainstream energy-saving idea of replacing non-renewable energy such as electricity, gas and coal-fired boilers with renewable energy such as solar energy, wind energy and air energy, the present technical solution is more convenient and direct to build and apply in the current hospital, and can efficiently and stably meet the strict temperature requirements of the hospital for heating and domestic hot water.

[0047] As shown in Figure 1 The first circulating pipe 141 connecting the solar collector group 13 and the constant temperature water tank 14 is provided with a solar circulating pump 131.

[0048] As an optional implementation manner of the utility model, the solar collector group 13 is usually built at a higher position, and the constant temperature water tank 14 is not directly exposed on the building surface in order to further ensure the heat preservation effect, so the water in the constant temperature water tank 14 is heated by the solar circulation pump 131. In addition, for the air energy heat pump unit 12, it absorbs more heat in the ambient air, so the construction position of the air energy heat pump unit 12 is more diverse, of course, if needed, the person skilled in the art configures a pump for the circulation pipeline 141 of the air energy heat pump unit 12, and no creative labor is needed.

[0049] The solar circulation pump 131 is mainly used on the circulation pipeline 141 of the solar collector group 13, and is not a separate brand or specification, and a mature circulation pump in the market can be used.

[0050] As shown in Figure 1 The pipeline between the cold water pipe 23 and the gas water heater unit 11 is the first cold water branch pipe 232, the pipeline between the cold water pipe 23 and the constant temperature water tank 14 is the second cold water branch pipe 233, the first cold water branch pipe 232 is provided with a first three-way joint 234, the pipeline between the heat exchanger 21 and the cold water pipe 23 is a circulating heating pipe 235, the circulating heating pipe 235 is connected through the first three-way joint 234, and the circulating heating pipe 235 is provided with a circulating heating pump 236.

[0051] As an optional implementation manner of the utility model, through the application of the first three-way joint 234 and the further limitation of the pipeline between the cold water pipe 23 and the gas water heater unit 11, the constant temperature water tank 14 and the heat exchanger 21, the water in the heat exchanger 21 can re-enter the gas water heater unit 11 for circulating heating, the cold water in the cold water pipe 23 can be directly heated by the gas water heater unit 11, and the cold water in the cold water pipe 23 can directly flow into the heat exchanger 21, so that various complex situations can be coped with, for example, extremely cold and extremely hot weather, and the utility model is more suitable for a scene with high requirements on the environment temperature, such as a hospital.

[0052] As shown in Figure 1 The first cold water branch pipe 232 and the second cold water branch pipe 233 are connected through the second three-way joint 237 and the cold water pipe 23, the soft water tank 238 is connected through the first cold water branch pipe 232 and located between the first three-way joint 234 and the second three-way joint 237, and the water supplement pump 231 is connected through the cold water pipe 23.

[0053] As an optional implementation manner of the utility model, for the soft water tank 238, it should be understood that it is an important component in the water treatment system, mainly used for storing the softened water. In the implementation manner, it can be a storage container, and the water flowing out of the cold water pipe 23 has been softened; the soft water tank 238 can also be a component connected with a water softener, and these different conditions are widely known in the prior art, and the technical solution will not be further limited and explained, in general, the application of the soft water tank 238 reflects the protection of the gas water heater set 11 (mainly), after all, in the technical solution, the only component directly and rapidly heating water is the gas water heater set 11, so that the generation of scale is delayed by supplying cold water to the gas water heater set 11, and the service life of the system is improved.

[0054] As shown in Figures 1-2 The gas water heater set 11, the water replenishing pump 231 and the input end of the circulating heating pump 236 are electrically connected with the output end of the controller 3, and the heat exchanger 21 and the constant temperature water tank 14 are both provided with temperature sensors 5, and the output end of the temperature sensor 5 is connected with the input end of the controller 3.

[0055] The electromagnetic valve 4 includes a first electromagnetic valve 414, a second electromagnetic valve 424 and a third electromagnetic valve 434, the first electromagnetic valve 414 is arranged on the first cold water branch pipe 232 and located between the first three-way joint 234 and the gas water heater set 11; the second electromagnetic valve 424 is arranged on the circulating heating pipe 235; and the third electromagnetic valve 434 is arranged on the first cold water branch pipe 232 and located between the first three-way joint 234 and the second three-way joint 237.

[0056] As an optional implementation manner of the utility model, as described above, the requirement of the hospital for temperature is very strict, so the application of the controller 3 and the temperature sensor 5 further improves the strict control of temperature, of course, such control also makes the gas water heater set 11, which is a component with relatively large energy consumption, not need to do more useless energy consumption, so as to achieve the purpose of energy saving.

[0057] In specific operation, the temperature sensor 5 detects the water temperature of the heat exchanger 21 and the constant temperature water tank 14, and the temperature signal is transmitted to the controller 3, when the water temperature does not meet the use requirement, the electromagnetic valve 4 can be started to open the cold water pipe 23 to supply water to the heat exchanger 21 and the constant temperature water tank 14, or the gas water heater set 11 can be started to heat the water in the cold water pipe 23 or the constant temperature water tank 14.

[0058] As shown in Figures 1-2 The constant temperature water tank 14 is also provided with a liquid level meter 142, the electromagnetic valve 4 further includes a fourth electromagnetic valve 444 arranged on the second cold water branch pipe 233, and the output end of the liquid level meter 142 is electrically connected with the input end of the controller 3.

[0059] As an optional implementation manner of the utility model, when the water storage in the constant temperature water tank 14 is insufficient, the fourth electromagnetic valve 444 is started to open the second cold water branch pipe 233 and the water supplement pump 231, so as to supplement water to the constant temperature water tank 14.

[0060] As shown in Figure 1 The electromagnetic valve 4 further comprises a fifth electromagnetic valve 454 arranged on a pipeline connecting the constant temperature water tank 14 and the heat exchanger 21.

[0061] As an optional implementation manner of the utility model, in some cases, for example, cleaning, maintenance, or not needing to use the water in the constant temperature water tank 14 which is too high or too low (especially when the water temperature in the constant temperature water tank 14 is lower than the cold water temperature in the cold water pipe 23), the solar circulation pump 131 or the fifth electromagnetic valve 454 can be closed, so that the water in the constant temperature water tank 14 is not used.

[0062] As shown in Figure 1 The heat exchanger 21 comprises at least two, and the hot water pipes 22 connecting the heat exchangers 21 are independent.

[0063] As an optional implementation manner of the utility model, in a hospital, different departments or wards have different requirements for water temperature or heating temperature, so multiple heat exchangers 21 can be used to obtain a customized hot water supply scheme.

[0064] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A medical energy-saving heat power source system comprising a heat production unit and a heat delivery unit, characterized in that, The heat production unit consists of a gas-fired water heater, an air-source heat pump unit, a solar collector unit, and a constant temperature water tank. The air-source heat pump unit and the solar collector unit are bidirectionally connected to the constant temperature water tank through circulation pipes. The heat transfer unit consists of a heat exchanger, hot water pipes, cold water pipes, and a return water pipe. The hot water pipes are connected to the outlet of the heat exchanger. The inlet of the heat exchanger is connected to the outlet of the constant temperature water tank, the gas water heater unit, and the cold water pipe. The inlet of the gas water heater unit is connected to the outlet of the cold water pipe. The outlet of the cold water pipe is also connected to the constant temperature water tank through a water replenishment pump, and the return water pipe is connected to the constant temperature water tank through a return water pump. It also includes a controller and several solenoid valves electrically connected to the controller, which are respectively installed on each pipe. The input end of the gas water heater unit is electrically connected to the output end of the controller.

2. A medical energy saving thermodynamic power source system according to claim 1, characterized in that, A solar circulation pump is installed on the first circulation pipe connecting the solar collector group and the constant temperature water tank.

3. A medical energy saving thermodynamic power source system according to claim 1, characterized in that, The pipe between the cold water pipe and the gas-fired water heater unit is the first cold water branch pipe, the pipe between the cold water pipe and the constant temperature water tank is the second cold water branch pipe, the first cold water branch pipe is provided with a first tee joint, the pipe between the heat exchanger and the cold water pipe is a circulating heating pipe, and the circulating heating pipe is connected through the first tee joint.

4. A medical energy saving thermodynamic power source system according to claim 3, characterized in that, The circulating heating pipe is equipped with a circulating heating pump.

5. A medical energy saving thermodynamic power source system according to claim 3, characterized in that, The first cold water branch pipe and the second cold water branch pipe are connected to the cold water pipe through the second tee joint. A soft water tank is connected through the first cold water branch pipe and located between the first tee joint and the second tee joint. The water supply pump is connected through the cold water pipe.

6. A medical energy saving thermodynamic power source system according to claim 4, characterized in that, The input terminals of the gas-fired water heater, the water supply pump, and the circulating heating pump are electrically connected to the output terminal of the controller. Temperature sensors are installed in both the heat exchanger and the constant temperature water tank, and the output terminal of the temperature sensor is connected to the input terminal of the controller.

7. A medical energy saving thermodynamic power source system according to claim 6, characterized in that, The solenoid valve includes: The first solenoid valve is located on the first cold water branch pipe and between the first tee joint and the gas water heater unit; The second solenoid valve is located on the circulating heating tube; The third solenoid valve is located on the first cold water branch pipe and between the first tee joint and the second tee joint.

8. A medical energy saving thermodynamic power source system according to claim 6, characterized in that, The constant temperature water tank is also equipped with a level gauge, and the solenoid valve also includes a fourth solenoid valve located on the second cold water branch pipe. The output end of the level gauge is electrically connected to the input end of the controller.

9. A medical energy saving thermodynamic power source system according to claim 6, characterized in that, The solenoid valve also includes a fifth solenoid valve, which is located on the pipe connecting the constant temperature water tank and the heat exchanger.

10. A medical energy saving thermodynamic power source system according to claim 1, characterized in that, The heat exchanger comprises at least two, and the hot water pipes connecting each heat exchanger are independent of each other.

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