CN211041246U - Combined single heating system - Google Patents

Abstract

The utility model relates to a combined single heating system, which comprises a ground source heat pump unit, an outdoor heat exchanger and a ground source side circulating pump which are connected through pipelines to form a ground source side heat exchange loop; the ground source heat pump unit, the indoor tail end and the air conditioner side circulating pump are sequentially connected through pipelines to form a tail end side heating loop, and the fresh air unit is connected in parallel to the ground source side heat exchange loop through the pipelines; the ground source side heat exchange loop and the tail end side heating loop are respectively connected with a constant pressure water supplementing system through pipelines. The utility model discloses utilize soil source heat pump system to give indoor end heating winter, when spring, summer, autumn festival ambient temperature is higher than 25 ℃, utilize water pump drive medium water to release the atmospheric environment through the cold volume that stores up in the fresh air unit with outdoor pipe laying device, and supply outdoor pipe laying soil body with the heat in the outdoor environment in, thereby effectively alleviate the cold accumulation in the stratum, guarantee whole soil source heat pump system's normal, safety, high-efficient operation.

Description

Combined single heating system

Technical Field

The utility model relates to a heating system for the building especially designs a combined single heating system.

Background

The ground source heat pump system is one kind of high efficiency energy saving air conditioning system capable of heating and cooling with underground shallow ground temperature resource. The soil source is respectively used as a heat source for heat pump heating in winter and a cold source for air conditioning in summer, namely, heat in the geothermal energy is taken out in winter, and the heat is supplied to indoor heating after the temperature is increased by the heat pump; in summer, the heat in the room is integrated and then released into the stratum soil body through the heat pump. The underground soil body is used as a larger energy storage body, is extracted from the soil in winter, and stores the energy in the soil body in summer for cyclic utilization.

However, in the single heating project using the soil source heat pump system, heat needs to be extracted from underground soil for a long time in winter, and if the underground soil body is not effectively supplemented with heat, the temperature of the outdoor buried pipe soil body is rapidly reduced after 3 to 5 years, so that the whole outdoor buried pipe system forms cold accumulation, the energy efficiency ratio of the soil source heat pump system is influenced, and even the normal operation of the whole system is influenced.

SUMMERY OF THE UTILITY MODEL

Compared with the prior art, the utility model provides a combined single heating system to solve at least one technical problem among the prior art problem.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a combined single heating system comprises a geothermal source pump unit, a fresh air unit, an indoor tail end, an outdoor buried pipe heat exchanger, a ground source side circulating pump, an air conditioner side circulating pump and a constant pressure water supplementing system, wherein the geothermal source pump unit, the outdoor buried pipe heat exchanger and the ground source side circulating pump are sequentially connected through pipelines to form a ground source side heat exchange loop; the ground source heat pump unit, the indoor tail end and the air conditioner side circulating pump are sequentially connected through pipelines to form a tail end side heating loop, the ground source side heat exchange loop and the tail end side heating loop are relatively independently arranged, and the fresh air unit is connected in parallel to the ground source side heat exchange loop through the pipelines; the ground source side heat exchange loop and the tail end side heating loop are respectively connected with a constant pressure water supplementing system through pipelines.

On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:

preferably, the geothermal source pump unit comprises a condenser and an evaporator, wherein the condenser is sequentially provided with an indoor tail end and an air conditioner side circulating pump on a connecting pipeline from the output end to the input end, and the evaporator is sequentially provided with an outdoor buried pipe heat exchanger and a ground source side circulating pump on the connecting pipeline from the output end to the input end.

Preferably, a fresh air unit is arranged in parallel on a pipeline between the evaporator and the outdoor buried pipe heat exchanger and the ground source side circulating pump, an output pipeline of the fresh air unit is arranged on a connecting pipeline between the outdoor buried pipe heat exchanger and the evaporator, an input pipeline of the fresh air unit is arranged on a connecting pipeline between the ground source side circulating pump and the evaporator, and the fresh air unit, the outdoor buried pipe heat exchanger and the ground source side circulating pump are sequentially connected through the pipeline to form a ground source side heat supplementing loop.

Preferably, the constant pressure water charging system comprises a water tank and a water softening device connected with the water tank through a pipeline, and the water tank is respectively connected with the ground source side loop and the tail end side loop through a pipeline provided with a water charging pump.

Preferably, a tail end side constant pressure water replenishing pump is arranged on a connecting pipeline of the indoor tail end and the air conditioner side circulating pump, a ground source side constant pressure water replenishing pump is arranged on a connecting pipeline of the outdoor buried pipe heat exchanger and the ground source side circulating pump, and the tail end side constant pressure water replenishing pump and the ground source side constant pressure water replenishing pump are connected with the water tank after being connected in parallel through pipelines respectively.

To sum up, the utility model provides a new single heating system that combines together of utilizing ground source heat pump and new trend unit, this system utilizes soil source heat pump system to give indoor end heating winter, spring, summer, when autumn festival ambient temperature is higher than 25 ℃, utilize water pump drive medium water to release the atmospheric environment through the cold volume that stores up in the new trend unit with outdoor pipe laying device, supplement the heat in the outdoor environment to near the soil body of outdoor pipe laying device simultaneously, thereby effectively alleviate the cold accumulation in the stratum, guarantee whole soil source heat pump system normal, safety, high-efficient operation.

Drawings

Fig. 1 is a schematic view of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a ground source heat pump unit; 1-1, an evaporator; 1-2, a condenser; 2. an air-conditioning side circulation pump; 3. a ground source side circulation pump; 4. a water softening device; 5. a water tank; 6. a constant pressure water replenishing pump at the tail end side; 7. a ground source side constant pressure water replenishing pump; 8. an outdoor borehole heat exchanger; 9. a fresh air handling unit; 10. the indoor end.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, the utility model relates to a combined single heating system, single heating system includes ground source heat pump unit 1, fresh air unit 9, indoor end 10, outdoor buried pipe heat exchanger 8, ground source side circulating pump 3, air conditioner side circulating pump 2 and constant pressure water charging system, ground source heat pump unit 1, outdoor buried pipe heat exchanger 8 and ground source side circulating pump 3 loop through the pipeline and connect and constitute ground source side heat exchange loop; the ground source heat pump unit 1, the indoor tail end 10 and the air conditioner side circulating pump 2 are sequentially connected through pipelines to form a tail end side heating loop, the ground source side heat exchange loop and the tail end side heating loop are relatively independently arranged, and the fresh air unit 9 is connected in parallel to the ground source side heat exchange loop through the pipelines; the ground source side heat exchange loop and the tail end side heating loop are respectively connected with a constant pressure water supplementing system through pipelines. The utility model discloses the soil source heat pump system that can not last single heating for the building end combines the new fan unit concurrent heating system who can be used to for outdoor buried pipe ground body intensification for a sustainable, green, safety, energy-conserving single heating system, utilizes the difference in temperature that seasonal change produced, and abundant effectual energy of utilizing the underground soil body draws from soil in winter, stores the energy in the soil body again when summer, cyclic utilization.

In some embodiments, the utility model relates to a combined single heating system, single heating system includes ground source heat pump unit 1, fresh air unit 9, indoor end 10, outdoor buried pipe heat exchanger 8, ground source side circulating pump 3, air conditioner side circulating pump 2 and constant pressure water charging system, ground source heat pump unit 1, outdoor buried pipe heat exchanger 8 and ground source side circulating pump 3 loop through the pipeline and are connected and constitute ground source side heat transfer loop; the ground source heat pump unit, the indoor tail end 10 and the air conditioner side circulating pump 2 are sequentially connected through pipelines to form a tail end side heating loop, the ground source side heat exchange loop and the tail end side heating loop are relatively independently arranged, and the fresh air unit 9 is connected in parallel to the ground source side heat exchange loop through the pipelines; the ground source side heat exchange loop and the tail end side heating loop are respectively connected with a constant pressure water supplementing system through pipelines.

Specifically, the ground source heat pump unit 1 comprises a condenser 1-2 and an evaporator 1-1, wherein pipelines provided with valves are arranged at the output end and the input end of the condenser 1-2, an indoor terminal 10 and an air conditioner side circulating pump 2 are sequentially arranged on a connecting pipeline from the output end to the input end of the condenser 1-2, pipelines provided with valves are arranged at the output end and the input end of the evaporator 1-1, and an outdoor buried pipe heat exchanger 8 and a ground source side circulating pump 3 are sequentially arranged on the connecting pipeline from the output end to the input end of the evaporator 1-1. The constant pressure water supplementing system comprises a water tank 5 and a water softening device 4 connected with the water tank 5 through a pipeline, and the water tank 5 is connected with a ground source side loop and a tail end side loop through pipelines with water supplementing pumps respectively. A tail end side constant pressure water replenishing pump 6 is arranged on a connecting pipeline of the indoor tail end 10 and the air conditioner side circulating pump 2, a ground source side constant pressure water replenishing pump 7 is arranged on a connecting pipeline of the outdoor buried pipe heat exchanger 8 and the ground source side circulating pump 3, and the tail end side constant pressure water replenishing pump 6 and the ground source side constant pressure water replenishing pump 7 are connected with the water tank 5 after being connected in parallel through pipelines respectively. The ground source side circulating pump 3 extracts low-temperature-level heat energy in rock and soil mass around the outdoor buried pipe heat exchanger 8 by driving medium water in the outdoor buried pipe heat exchanger 8, the low-temperature-level heat energy is converted into high-temperature-level heat energy together with electric energy generated by the work of the ground source heat pump unit 1 after the energy extraction and conversion of the ground source heat pump unit 1, and the high-temperature-level heat energy is conveyed to the indoor tail end 10 to achieve the heating effect under the driving of the air conditioner side circulating pump 2.

In one or more embodiments, the utility model relates to a combined single heating system, single heating system includes ground source heat pump unit 1, fresh air unit 9, indoor end 10, outdoor buried pipe heat exchanger 8, ground source side circulating pump 3, air conditioner side circulating pump 2 and level pressure water charging system, parallelly connected being provided with fresh air unit 9 on the pipeline between evaporimeter 1-1 and outdoor buried pipe heat exchanger 8 and ground source side circulating pump 3, the output pipeline of fresh air unit 9 sets up on the connecting pipeline of outdoor buried pipe heat exchanger 8 and evaporimeter 1-1, the input pipeline of fresh air unit 9 sets up on the connecting pipeline of ground source side circulating pump 3 and evaporimeter 1-1, all be equipped with the valve on output pipeline and the input pipeline of fresh air unit 9; in winter, the pipeline valve connected with the ground source heat pump unit 1 is opened, the valves of the input pipeline and the output pipeline of the fresh air unit 9 are closed, and the ground source heat pump unit, the outdoor buried pipe heat exchanger 8 and the ground source side circulating pump 3 are sequentially connected through the pipelines to form a ground source side heat exchange loop; the ground source heat pump unit 1, the indoor tail end 10 and the air conditioner side circulating pump 2 are sequentially connected through pipelines to form a tail end side heating loop, and the ground source side heat exchange loop and the tail end side heating loop are relatively independently arranged; the ground source side heat exchange loop and the tail end side heating loop are respectively connected with the water tank 5 through pipelines. Specifically, the ground source heat pump unit 1 comprises a condenser 1-2 and an evaporator 1-1, wherein pipelines provided with valves are arranged at the output end and the input end of the condenser 1-2, an indoor terminal 10 and an air conditioner side circulating pump 2 are sequentially arranged on a connecting pipeline from the output end to the input end of the condenser 1-2, pipelines provided with valves are arranged at the output end and the input end of the evaporator 1-1, and an outdoor buried pipe heat exchanger 8 and a ground source side circulating pump 3 are sequentially arranged on the connecting pipeline from the output end to the input end of the evaporator 1-1. In spring, summer and autumn non-heating seasons, air is warmed up, the temperature difference is formed between the water temperature (usually lower than 10 ℃) of the outdoor buried-tube heat exchanger 8 and the external air temperature, when the external environment temperature is higher than 25 ℃, a valve corresponding to the fresh air unit 9 is opened, and a pipeline valve of the evaporator 1-1 connected with the ground source heat pump unit 1 is closed. The fresh air unit 9, the ground source side circulating pump 3 and the outdoor buried pipe heat exchanger 8 form a soil source heat energy supplement loop. The ground source side circulating pump 3 is started to enable 'cold' accumulated in stratum rock and soil mass in the area of the outdoor buried pipe heat exchanger 8 to be transmitted to the fresh air unit 9 through intermediate water in the pipeline of the outdoor buried pipe heat exchanger 8 to be exchanged with 'hot air' in the environment, cold energy accumulated in the stratum rock and soil mass in the area of the outdoor buried pipe is released to the atmospheric environment, the intermediate water absorbs heat energy in the environment, the temperature is increased, the heat energy is transmitted to the outdoor buried pipe heat exchanger 8 under the driving of the ground source side circulating pump 3 to be supplemented, and the circulation is carried out until the completion of the supplementation of the ground energy at the position of the outdoor buried pipe heat exchanger 8. The fresh air handling unit 9 can also supply cold to the end of the building part when working.

The single heating system mainly extracts energy in soil by the ground source heat pump unit 1 through the ground source circulating pump 3 and the outdoor buried pipe heat exchanger 8 to be used as a heat source for heat pump heating, namely, heat in geothermal energy is taken out in winter, and the heat is conveyed to the indoor tail end 10 for heating through the air conditioner circulating pump 2 after the temperature is raised. When the temperature is warmed up again in three seasons of spring, summer and autumn, the fresh air unit 9 is started, and cold accumulated in geothermal energy in winter is released, so that heat supplement storage is performed on rock and soil bodies, the heat supplement storage is used as a heat source for supplying heat to the ground source heat pump system in the second year, and the operation is repeated in cycles, and the safety, the energy conservation and the normal operation of the system are guaranteed. The water outlet temperature of the tail end side of the single heating system in winter is 40-45 ℃.

The utility model provides a cold and hot balanced problem of soil of ground source heat pump system under the single heating mode winter, this provides new thinking for single heating of monomer, has replaced coal-fired, the environmental pollution scheduling problem that the gas heating brought in the past for single heating building body is more energy-conserving, environmental protection.

The cold-heat balance of the ground source heat pump system needs to be accurately calculated, so that the change of the outdoor buried pipe heat exchanger 8 and the outdoor temperature is observed through a display screen on the heat pump unit, and when the temperature of the buried system is back-warmed in spring, summer and autumn and the temperature difference between the buried system and the outside air exceeds 10 ℃, the fresh air unit 9 is started in time to supplement heat until the cold and heat of the soil reach balance. The cold accumulation of the system can be reduced to the maximum extent through reasonable design and reasonable use, and the characteristics of safety, energy conservation, high efficiency, environmental protection and reliability of the soil source heat pump system are fully exerted.

In some embodiments, a suburban cell project of a certain cell is composed of two parts, namely a residential building and a cell property center (including a gymnasium). The project is in suburbs, and the cold use in summer is less, so the project belongs to a single heating mode. Therefore, the system adopts a single heating system combining the soil source heat pump and the fresh air handling unit to meet the requirement of heating provided by the residential area. In order to enable the buried pipe system to exert the maximum energy-saving and consumption-reducing effects, the soil source heat pump machine room equipment is designed according to the winter heat load of the building, and then the winter heat load of the building is taken as the heat load needing to be exchanged by the fan.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (5)

1. The combined single heating system is characterized by comprising a ground source heat pump unit, a fresh air unit, an indoor tail end, an outdoor buried pipe heat exchanger, a ground source side circulating pump, an air conditioner side circulating pump and a constant pressure water supplementing system, wherein the ground source heat pump unit, the outdoor buried pipe heat exchanger and the ground source side circulating pump are sequentially connected through pipelines to form a ground source side heat exchange loop; the ground source heat pump unit, the indoor tail end and the air conditioner side circulating pump are sequentially connected through pipelines to form a tail end side heating loop, the ground source side heat exchange loop and the tail end side heating loop are relatively independently arranged, and the fresh air unit is connected in parallel to the ground source side heat exchange loop through the pipelines; and the ground source side heat exchange loop and the tail end side heating loop are respectively connected with a constant pressure water supplementing system through pipelines.

2. The combination single heating system as claimed in claim 1, wherein the ground source heat pump unit comprises a condenser and an evaporator, the condenser is provided with an indoor end and an air conditioner side circulating pump in sequence on a connecting pipeline from the output end to the input end, and the evaporator is provided with an outdoor buried pipe heat exchanger and a ground source side circulating pump in sequence on a connecting pipeline from the output end to the input end.

3. The combined single heating system according to claim 2, wherein the output pipeline of the fresh air handling unit is arranged on the connecting pipeline between the outdoor buried pipe heat exchanger and the evaporator, the input pipeline of the fresh air handling unit is arranged on the connecting pipeline between the ground source side circulating pump and the evaporator, and the fresh air handling unit, the outdoor buried pipe heat exchanger and the ground source side circulating pump are sequentially connected through pipelines to form a ground source side heat supply loop.

4. The combination single heating system as claimed in claim 1, wherein the constant pressure water charging system comprises a water tank and a water softening device connected with the water tank through a pipeline, and the water tank is respectively connected with the ground source side heat exchange loop and the tail end side heating loop through a pipeline provided with a water charging pump.

5. The combination type single heating system according to claim 4, wherein a terminal side constant pressure water replenishing pump is provided on a connection pipe between the indoor terminal and the air conditioner side circulation pump, a ground source side constant pressure water replenishing pump is provided on a connection pipe between the outdoor buried pipe heat exchanger and the ground source side circulation pump, and the terminal side constant pressure water replenishing pump and the ground source side constant pressure water replenishing pump are connected in parallel via pipes and then connected to the water tank.

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