Integrated gas-electric complementary cold and heat combined supply device

Abstract

The invention discloses an integrated gas-electric complementary cold and heat combined supply device. The device comprises a box body; the partition plate is arranged in the box body and divides the box body into a first cavity and a second cavity in the horizontal direction; the heat pump is arranged in the first chamber; the fuel gas module furnace is arranged in the second chamber; one end of the water supply pipeline is connected with external water supply equipment, and the other end of the water supply pipeline is connected with the heat pump and the fuel gas module furnace; one end of the water supply pipeline is connected with a user side, and the other end of the water supply pipeline is connected with the heat pump and the fuel gas module furnace. The heat pump and the fuel gas module furnace are distributed on the two sides in the box body in the horizontal direction to form linear arrangement, the structure is simple, the layout is clear, and installation and later maintenance of equipment are facilitated; the heat pump and the fuel gas module furnace are effectively isolated by the partition plate, so that relative independence of the heat pump and the fuel gas module furnace is guaranteed, a compact integral device is formed, and mutual interference caused by vertical stacking is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of combined heat and power supply devices, in particular to an integrated gas-electricity complementary combined heat and power supply device. BACKGROUND

[0002] With the increasing popularity of combined heat and power supply technology in the field of building energy supply, in order to improve system operation efficiency and take into account energy diversity, a heat pump and gas module furnace combined cooling and heating system is widely used in the market to realize complementary matching of electricity and gas, i.e. a gas-electricity complementary combined heat and power supply mode. This mode realizes efficient energy supply throughout the year by the cooperative operation of a heat pump unit and a gas module furnace, which respectively bear the cooling and heating load demand under different seasons and different loads.

[0003] In the prior art, the heat pump unit and the gas furnace are usually installed separately, i.e. the heat pump system and the gas module furnace are two independent unit devices, which are installed at different positions of the building. This arrangement often causes difficulty in fault diagnosis due to the dispersion of equipment, and the maintenance personnel need to cross equipment maintenance, which increases the labor cost and the burden of spare parts management, and is not conducive to the goal of modern energy supply system with high reliability and low operation and maintenance.

[0004] Therefore, the prior art still needs to be improved and developed. SUMMARY

[0005] The technical problem to be solved by the present application is to provide an integrated gas-electricity complementary combined heat and power supply device to realize the integration of a heat pump and a gas module.

[0006] The technical solution adopted by the present application to solve the technical problem is as follows:

[0007] An integrated gas-electricity complementary combined heat and power supply device comprises:

[0008] a box body;

[0009] a partition plate arranged in the box body to divide the box body into a first chamber and a second chamber along the horizontal direction;

[0010] a heat pump arranged in the first chamber;

[0011] a gas module furnace arranged in the second chamber;

[0012] a water supply pipeline having one end connected with an external water supply device and the other end connected with the heat pump and the gas module furnace respectively;

[0013] a water supply pipeline having one end connected with an external water supply device and the other end connected with the heat pump and the gas module furnace respectively;

[0014] The integrated gas-electricity complementary cold and heat two combined supply device, wherein a first horizontal partition plate is arranged in the first chamber to divide the first chamber into two layers.

[0015] The heat pump comprises:

[0016] A compressor is arranged in the lower layer of the first chamber.

[0017] A four-way valve is arranged in the lower layer of the first chamber.

[0018] An evaporator is arranged in the upper layer of the first chamber.

[0019] A condenser is arranged in the lower layer of the first chamber; the compressor, the four-way valve, the evaporator and the condenser are sequentially connected and form a refrigerant circulation loop.

[0020] The integrated gas-electricity complementary cold and heat two combined supply device further comprises:

[0021] A water collecting unit is arranged in the upper layer of the first chamber and below the evaporator.

[0022] The integrated gas-electricity complementary cold and heat two combined supply device further comprises:

[0023] A flue gas heat exchanger is arranged in the second chamber; a primary side of the flue gas heat exchanger is connected with the gas module furnace; a secondary side of the flue gas heat exchanger is connected with the compressor and the four-way valve respectively to access the refrigerant circulation loop.

[0024] The integrated gas-electricity complementary cold and heat two combined supply device, wherein the flue gas heat exchanger is arranged above the gas module furnace.

[0025] The integrated gas-electricity complementary cold and heat two combined supply device, wherein in the vertical direction, the flue gas heat exchanger is lower than the evaporator.

[0026] The integrated gas-electricity complementary cold and heat two combined supply device, wherein the flue gas heat exchanger and the gas module furnace are arranged in a horizontal direction perpendicular to the arrangement direction of the first chamber and the second chamber.

[0027] The integrated gas-electricity complementary cold and heat two combined supply device further comprises:

[0028] A second horizontal partition plate is arranged in the second chamber to divide the second chamber into two layers; the gas module furnace and the flue gas heat exchanger are arranged in the lower layer of the second chamber.

[0029] An exhaust pipe is connected with the gas module furnace; the exhaust pipe is vertically arranged in the box and is arranged in the upper layer of the second chamber.

[0030] The integrated gas-electricity complementary cold and heat two combined supply device further comprises:

[0031] A water pump is arranged on the water supply pipeline;

[0032] A water flow switch is arranged on the water supply pipeline and located between the water pump and the gas module furnace;

[0033] A gas pipeline is connected with an external gas source and the gas module furnace respectively;

[0034] A gas valve is arranged on the gas pipeline; the gas valve is used to open when the water flow switch is triggered.

[0035] Beneficial effects: compared with a split system, the heat pump and the gas module furnace are integrated in the box in the application, and are linearly arranged, which can effectively save equipment occupation. The whole machine adopts a unified box, and the water inlet and outlet pipelines, the gas inlet pipeline and the like are provided with quick connectors, so that modular installation can be realized, the installation difficulty and time are greatly reduced, and the installation is more simple and convenient. The integrated design can adopt a modular and multiple parallel small gas module furnace, the gas module furnace can be adjusted as needed, without full coverage of the heat load, so that the power of a single gas module furnace can be less than 100KW, avoiding the requirement of special person on duty for special equipment; the structure is simple and clear in layout, and the equipment is convenient to install and maintain in later period. The partition plate is arranged between the gas module furnace and the heat pump, effectively isolating the two systems, ensuring the relative independence of the two systems, forming a compact whole device, and without mutual interference caused by stacking up and down.

[0036] The application adopts horizontal linear arrangement, the gas module furnace and the heat pump are arranged on two sides in the horizontal direction, and the heat pump does not need to be disassembled before the gas module furnace is maintained or replaced, and the heat pump does not need to be disassembled before the gas module furnace is maintained or replaced, so that independent maintenance or replacement of the heat pump and the gas module furnace can be realized; the condensed water flowing down along the fins of the evaporator is discharged from the front of the heat pump, and does not flow through the gas module furnace, improving the stability and safety of the operation of the gas module furnace. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is the first view of the integrated gas-electricity complementary cold and heat two combined supply device in the application;

[0038] Figure 2 is the second view of the integrated gas-electricity complementary cold and heat two combined supply device in the application;

[0039] Figure 3 is the third view of the integrated gas-electricity complementary cold and heat two combined supply device in the application;

[0040] Figure 4 is a functional principle diagram of the integrated gas-electricity complementary cold and heat two combined supply device described in the present application;

[0041] Figure 5 is a schematic diagram of the connection relationship of each component of the integrated gas-electricity complementary cold and heat two combined supply device described in the present application. DETAILED DESCRIPTION

[0042] Those skilled in the art can understand that, unless specifically stated otherwise, the singular forms "a", "an", "said" and "the" used herein also include the plural forms. It should be further understood that the phrase "comprising" used in the specification of the present application means that the features, integers, steps, operations, elements and / or components exist, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there can be intermediate elements. In addition, "connected" or "coupled" used herein can include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any single unit and all combinations of the associated listed items.

[0043] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as that generally understood by those skilled in the art to which the present application belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have meanings consistent with those in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as such.

[0044] The present application provides an integrated gas-electricity complementary cold and heat two combined supply device, as shown in Figure 1 、 Figure 2 and Figure 3 The integrated gas-electricity complementary cold and heat two combined supply device comprises a box body 1, a partition plate 2, a heat pump 3, a gas module stove 4, a water supply pipeline and a water outlet pipeline; the partition plate 2 is arranged in the box body 1 to divide the box body 1 into a first chamber 101 and a second chamber 102 along the horizontal direction; the heat pump 3 is arranged in the first chamber 101, and the gas module stove 4 is arranged in the second chamber 102; one end of the water supply pipeline is connected with an external water supply device, and the other end of the water supply pipeline is connected with the heat pump 3 and the gas module stove 4 respectively; one end of the water supply pipeline is connected with a user end, and the other end of the water supply pipeline is connected with the heat pump 3 and the gas module stove 4 respectively.

[0045] Specifically, the heat pump 3 and the gas module furnace 4 are integrated in the same cabinet 1 to form an integrated structure. The partition plate 2 separates the cabinet 1 in the horizontal direction to form a first chamber 101 and a second chamber 102, and the heat pump 3 is arranged in the first chamber 101 and the gas module furnace 4 is arranged in the second chamber 102, so that the heat pump 3 and the gas module furnace 4 are distributed on both sides (such as left and right directions) in the cabinet 1 in the horizontal direction to form a linear arrangement, which is simple in structure and clear in layout, and is convenient for installation and later maintenance of the equipment. The partition plate 2 is arranged between the gas module furnace 4 and the heat pump 3 to effectively isolate the two systems, which not only guarantees the relative independence of the two systems, but also constitutes a compact overall device, and will not cause mutual interference due to stacking up and down.

[0046] If the heat pump 3 and the gas module furnace 4 are vertically stacked, that is, the heat pump 3 and the gas module furnace 4 are arranged in the same vertical space, the gas module furnace 4 needs to be disassembled first when the heat pump 3 is maintained or replaced, or the heat pump 3 needs to be disassembled first when the gas module furnace 4 is maintained or replaced. At the same time, due to the low temperature in winter, a large amount of condensed water will be formed on the evaporator 33 after defrosting of the heat pump 3, and the condensed water will flow down along the evaporator 33, and part of the condensed water will flow to the gas module furnace 4 along the partition plate 2, causing the gas unit to fail. The present application adopts horizontal linear arrangement, and the gas module furnace 4 and the heat pump 3 are arranged on both sides in the horizontal direction. When the heat pump 3 is maintained or replaced, the gas module furnace 4 does not need to be disassembled first, and when the gas module furnace 4 is maintained or replaced, the heat pump 3 does not need to be disassembled first, so that the heat pump 3 and the gas module furnace 4 can be independently maintained or replaced. The condensed water flowing down along the fins of the evaporator 33 is discharged from the lower side of the heat pump 3, and will not flow through the gas module furnace 4, thereby improving the stability and safety of the operation of the gas module furnace 4.

[0047] One end of the water supply pipeline extends to the outside of the cabinet 1 and is connected with an external water supply device; the other end of the water supply pipeline extends into the cabinet 1 and is connected with the heat pump 3 and the gas module furnace 4 respectively to supply water to the heat pump 3 and the gas module furnace 4 respectively. One end of the water outlet pipeline extends to the outside of the cabinet 1 and is connected with a user end; the other end of the water outlet pipeline extends into the cabinet 1 and is connected with the heat pump 3 and the gas module furnace 4 respectively, so as to form water flow circulation between the water supply pipeline, the heat pump 3 and the water outlet pipeline, and also form water flow circulation between the water supply pipeline, the gas module furnace 4 and the water outlet pipeline. When the heat pump 3 is in a heating mode and the gas module furnace 4 is turned on, the water flow temperature of the water outlet pipeline is higher than that of the water supply pipeline, so as to realize hot water supply; when the heat pump 3 is in a cooling mode, the water outlet pipeline is used to realize cold water supply.

[0048] Compared with a split system, the heat pump 3 and the gas module furnace 4 are integrated in the cabinet 1, and are linearly arranged, so that the equipment occupation area can be effectively saved. The whole machine adopts a unified cabinet 1, and the water inlet and outlet pipelines, the gas inlet pipeline and the like are provided with quick connectors, so that modular installation can be realized, the installation difficulty and time are greatly reduced, and the installation is more simple and convenient. In the existing split system, the gas module furnace 4 is configured to bear most of the heating heat load, that is, the “boiler bottom load” idea is adopted, therefore, the power of the single furnace configured in the split system is usually higher than 100KW, which is a special equipment, and a special person needs to be configured for 24-hour on-duty; in the integrated design in the application, modular and multiple parallel small gas module furnaces 4 can be used, the gas module furnace 4 can be adjusted as needed, and full coverage of the heat load is not required, so that the power of a single gas module furnace 4 can be less than 100KW, and the special equipment on-duty requirement is avoided.

[0049] In an embodiment of the application, a first horizontal partition plate 5 (as shown in Figure 1 and Figure 2 ) is further arranged in the first chamber 101 to divide the first chamber 101 into two layers. Figure 5 As shown in , the heat pump 3 comprises a compressor 31, a four-way valve 32, an evaporator 33 and a condenser 34; the compressor 31, the four-way valve 32 and the condenser 34 are located in the lower layer of the first chamber 101, and the evaporator 33 is located in the upper layer of the first chamber 101; the compressor 31, the four-way valve 32, the evaporator 33 and the condenser 34 are sequentially connected and form a refrigerant circulation loop.

[0050] Specifically, the primary side of the condenser 34 is connected with the evaporator 33 and the four-way valve 32 respectively, and the secondary side of the condenser 34 is connected with the water supply pipeline and the water outlet pipeline respectively. The water inlet 7 and the water outlet 8 are arranged on the condenser 34, so as to facilitate the butt joint with the water supply pipeline and the water outlet pipeline. The evaporator 33 has a low temperature during operation, and water vapor in the air is easy to condense on the surface of the evaporator 33 to form condensed water, therefore, in the application, the evaporator 33 is carried by the first horizontal partition plate 5, so as to elevate the evaporator 33, and the condensed water generated by the evaporator 33 can naturally fall by gravity.

[0051] The integrated gas-electricity complementary cold and heat two-way supply device further comprises a water receiving unit, which is arranged in the upper layer of the first chamber 101 and below the evaporator 33.

[0052] Specifically, the water receiving unit is arranged on the first horizontal partition plate 5, so as to carry the water receiving unit by the first horizontal partition plate 5; and the water receiving unit is located below the evaporator 33, so as to receive the condensed water generated by the evaporator 33.

[0053] The water receiving unit comprises a water receiving tray and a drain pipe, one end of the drain pipe is communicated with the water receiving tray, and the other end extends out of the cabinet 1, so as to drain the condensed water received in the water receiving tray out of the cabinet 1. In the present application, the water receiving unit is lifted by the first horizontal partition plate 5, so that the water receiving unit has a certain height from the ground, thereby facilitating the natural drainage of the condensed water in the water receiving tray under the action of gravity without the need to increase a power drainage mechanism.

[0054] As shown in Figure 3 and Figure 5 , the integrated gas-electricity complementary cold and heat two-way supply device further comprises a flue gas heat exchanger 9, which is arranged in the second chamber 102; one side of the flue gas heat exchanger 9 is connected with the gas module furnace 4; and the other side of the flue gas heat exchanger 9 is connected with the compressor 31 and the four-way valve 32 respectively to access the refrigerant circulation loop.

[0055] Specifically, to improve the overall energy efficiency of the system, in the combination system of the heat pump 3 and the gas module furnace 4, the high-temperature flue gas discharged from the gas module furnace 4 is introduced into the flue gas heat exchanger 9, and the flue gas heat exchanger 9 is used for heat exchange with the refrigerant at the inlet side of the compressor 31; the refrigerant inlet temperature is much lower than the hot water temperature, so that the temperature difference between the flue gas and the refrigerant is larger, thereby improving the heat exchange driving force, the ability to recover the flue gas waste heat is stronger, and the heat exchange efficiency is higher. Secondly, the flue gas heats the low-temperature refrigerant, which can be superheated to be higher than the ambient temperature, which not only helps to improve the vapor density and mass flow rate of the refrigerant, but also significantly reduces the compression ratio of the compressor 31, reduces the compression power consumption, and improves the heating performance of the heat pump 3. In this way, not only is the waste heat of the flue gas of the gas module furnace 4 fully recovered, but also the heat pump 3 operation is positively gained, and the energy efficiency between the heat pump 3 and the gas system is coordinated, which significantly improves the overall heating efficiency and economy of the system.

[0056] When it is more advantageous to operate with commercial power, the integrated gas-electricity complementary cold and heat two-way supply device mainly relies on the heat pump 3 to drive heating. When defrosting of the fin is needed, the gas module furnace 4 can be started, and the flue gas waste heat is used for auxiliary defrosting. When it is more advantageous to operate with gas, the integrated gas-electricity complementary cold and heat two-way supply device mainly relies on the gas module furnace 4 to realize independent heating. When it is more advantageous to operate with commercial power and gas simultaneously, the gas module furnace 4 and the heat pump 3 will be coupled with each other to realize higher heating efficiency (COP) of the heat pump 3 in extremely cold weather, and to further improve the heating efficiency of the heat pump 3 and reduce the defrosting energy consumption by coupling the flue gas waste heat with the electric heat pump 3 in the reverse Carnot cycle heating process.

[0057] In an embodiment of the present application, as shown in Figure 3 , the flue gas heat exchanger 9 is located above the gas module furnace 4.

[0058] Specifically, the flue gas generated after the gas module furnace 4 burns is usually at a temperature of 150-250 DEG C, has low density and large buoyancy; such high-temperature low-density gas has a natural tendency to "go up", and the upper exhaust structure can conform to the natural flow direction of the flue gas, has small exhaust resistance, and the system runs stably; if forced "down exhaust", the exhaust back pressure of the flue gas will be increased, which may cause safety problems such as incomplete combustion, backflow in the furnace, and flameout. In the present application, the flue gas generated by the gas module furnace 4 is discharged after passing through the flue gas heat exchanger 9, so in space, the flue gas heat exchanger 9 is arranged above the gas module furnace 4, and the flue gas of the gas module furnace 4 is discharged after passing through the flue gas heat exchanger 9, so that the upward exhaust is more smooth.

[0059] In an embodiment of the present application, the flue gas heat exchanger 9 is lower than the evaporator 33 in the vertical direction.

[0060] Specifically, in order to ensure the rationality of the refrigerant flow path, the refrigerant flow distance from the evaporator 33, through the flue gas heat exchanger 9, to the compressor 31 should be as short as possible; too long pipeline will not only increase the flow resistance, but also may cause the further drop of the temperature and pressure of the refrigerant before entering the compressor 31, thereby affecting the system performance and stability. Therefore, the flue gas heat exchanger 9 should be arranged preferentially between the evaporator 33 and the compressor 31 in space to ensure that the refrigerant flow path is short, the resistance is small, and the heat exchange efficiency is high.

[0061] At the same time, considering that the flue gas heat exchanger 9 needs to receive high-temperature flue gas from the gas module furnace 4 and conform to the upward flow characteristics of the flue gas, its installation height should be above the gas module furnace 4 to achieve smooth exhaust. Therefore, in combination, the flue gas heat exchanger 9 is arranged below the evaporator 33 in the vertical direction, so that the flue gas heat exchanger 9 is arranged at a position lower than the evaporator 33 and higher than the gas module furnace 4, which not only ensures the high efficiency of the refrigerant flow path, but also meets the arrangement requirements of flue gas flow and waste heat recovery, and realizes the collaborative optimization of system structure and performance.

[0062] In an embodiment of the present application, as shown in Figure 3 The flue gas heat exchanger 9 and the gas module furnace 4 are arranged in a staggered manner in the horizontal direction perpendicular to the arrangement direction of the first chamber 101 and the second chamber 102.

[0063] Specifically, taking the distribution of the first chamber 101 and the second chamber 102 in the left-right direction as an example, the flue gas heat exchanger 9 and the gas module furnace 4 are arranged in a staggered manner in the front-rear direction. If the gas module furnace 4 is arranged at the lower front position, the flue gas heat exchanger 9 is arranged at the upper rear position, so that the gas module furnace 4 and the flue gas heat exchanger 9 are arranged in a staggered manner in space and in a layered manner in the front-rear direction and the upper-lower direction.

[0064] The flue gas generated by the gas module furnace 4 is generally at a temperature of 150-250 DEG C. When the flue gas enters the heat exchanger to exchange heat with a low-temperature medium (such as refrigerant or cold water), the temperature will rapidly decrease. The water vapor in the flue gas will condense into condensed water in a large amount when the temperature of the water vapor reaches the dew point (generally 50-60 DEG C) during the temperature decreasing process. The condensed water may contain corrosive components such as sulfuric acid and nitric acid, and is destructive. If the system structure is not reasonably designed, the condensed water may flow back along the flue gas channel. Once the condensed water flows back to the flue or the burner inside the gas module furnace 4, it is easy to cause corrosion of the furnace, ignition failure, unstable combustion, damage to the thermocouple or control element, and even system failure and shutdown. Especially when the equipment cannot drain water in time or the water cannot be drained smoothly, the backflow phenomenon is more serious.

[0065] To solve the above problems, in the present application, the gas module furnace 4 and the flue gas heat exchanger 9 are arranged in a staggered manner in space, and are arranged in layers in an upper-lower manner. The condensed water can flow out naturally along the direction of gravity through the height difference. The front-rear staggered arrangement forms a structural partition to break the flue gas backflow path. The flue gas enters the front side of the heat exchanger from the upper part behind the furnace, the path is clear, and the condensed water is concentrated in the front, avoiding backflow into the furnace. In this way, the upward flow direction of the flue gas is followed, and the height difference and the space partition are used to effectively guide and gravity discharge the condensed water, thereby improving the safety and stability of the system.

[0066] In an embodiment of the present application, a second water receiving unit is further arranged below the flue gas heat exchanger 9 and above the gas module furnace 4. The second water receiving unit has the same structure as the water receiving unit and is used to receive the condensed water flowing down from the flue gas heat exchanger 9, so as to discharge the condensed water to the outside of the box body 1.

[0067] The integrated gas-electricity complementary cold and heat two-way supply device further comprises a second horizontal partition plate 6 and an exhaust pipe 10. The second horizontal partition plate 6 is arranged in the second chamber 102 and divides the second chamber 102 into upper and lower layers. The gas module furnace 4 and the flue gas heat exchanger 9 are located in the lower layer of the second chamber 102. The exhaust pipe 10 is connected with the gas module furnace 4. The exhaust pipe 10 is vertically arranged in the box body 1 and located in the upper layer of the second chamber 102.

[0068] Specifically, the second horizontal partition plate 6 is arranged in the second chamber 102 to divide the second chamber 102 into two layers, and the exhaust pipe 10 is arranged in the upper layer and the flue gas heat exchanger 9 is arranged in the lower layer. The second horizontal partition plate 6 is used to isolate the flue gas heat exchanger 9 and the exhaust pipe 10, so as to physically separate the high-temperature heat exchange area and the lower-temperature exhaust area, thereby improving the service life and safety of the whole machine. The second horizontal partition plate 6 is flush with the first horizontal partition plate 5.

[0069] Since the evaporator 33 is located at the upper layer of the first chamber 101, a large amount of air outside the cabinet 1 needs to be sucked in for heat exchange during operation. If the flue gas is discharged from a low position, a hot smoke vortex or settlement area is easily formed near the cabinet 1, and the flue gas is mistakenly sucked by the evaporator 33. Therefore, the flue gas discharge pipe 10 is vertically arranged in the cabinet 1 and located at the upper layer of the second chamber 102 to raise the flue gas discharge pipe 10 and reduce the probability of flue gas being mistakenly sucked by the evaporator 33.

[0070] It can be seen that, in order to ensure the safety of equipment operation and the stability of the system, the flue gas discharge pipe 10 is led out from the top of the flue gas heat exchanger 9 and directly extends to the outside of the unit in the form of a straight pipe for discharge. The top flue gas discharge can make the high-temperature flue gas quickly discharge along the natural upward direction, avoid staying in the equipment, and reduce the thermal shock and safety risk of high-temperature accumulation on the internal components. Since the evaporator 33 is arranged at the upper layer of the first chamber 101, if the flue gas diffuses downward, it may be sucked into the evaporator 33 and cause corrosion. Therefore, the top flue gas discharge helps the flue gas to naturally diffuse upward and reduces the corrosion risk. After passing through the flue gas heat exchanger 9, the temperature of the flue gas is greatly reduced, and a large amount of condensed water is formed. The flue gas discharge pipe 10 adopts a straight pipe structure that extends upward but remains vertical as a whole. The condensed water can be discharged downward along the pipe wall by gravity to prevent accumulation, freezing or blockage in the flue gas discharge pipe 10, and to ensure smooth flue gas discharge and system durability.

[0071] A gas fan 11 is further arranged between the flue gas heat exchanger 9 and the gas module furnace 4, and the gas fan 11 is located at the lower layer of the second chamber 102. The gas fan 11 (also known as an induced draft fan or a flue gas fan) maintains a slight negative pressure in the furnace or combustion chamber of the gas furnace through suction, actively pumps the flue gas generated after combustion from the inside of the gas module furnace 4 to the flue gas heat exchanger 9 and finally discharges it outside the cabinet 1. Compared with relying on the natural suction or thermal pressure difference of the chimney, the gas fan 11 can significantly increase the flue gas flow rate, which helps to stabilize the flue gas flow and ensure that the flue gas fully passes through the heat exchange zone of the heat exchanger, thereby improving the waste heat recovery efficiency.

[0072] The integrated gas-electricity complementary cold and heat two-way supply device further includes a water pump 12, a water flow switch 13, a gas pipeline 14 and a gas valve 15. The water pump 12 is arranged on the water supply pipeline. The water flow switch 13 is arranged on the water supply pipeline and located between the water pump 12 and the gas module furnace 4. The gas pipeline 14 is connected with an external gas source and the gas module furnace 4 respectively. The gas valve 15 is arranged on the gas pipeline 14. The gas valve 15 is used to open when the water flow switch 13 is triggered.

[0073] Specifically, when the heat pump 3 is in the cooling mode, the condenser 34 is used as the evaporator 33, and the water flow path formed between the water supply pipeline, the condenser 34 and the water outlet pipeline can realize the conversion of water temperature from high to low through heat exchange, so as to supply cold water. When the heat pump 3 is in the heating mode, or the gas module stove 4 is turned on, the water flow path formed between the water supply pipeline, the condenser 34 and the water outlet pipeline, and the water flow path formed between the water supply pipeline, the gas module stove 4 and the water outlet pipeline can all realize the conversion of water temperature from low to high, so as to supply hot water.

[0074] The water pump 12 and the gas valve 15 are both located in the second chamber 102 and are both located on the lower side of the second chamber 102, so that the water pump 12 and the gas valve 15 are both located in the same space as the gas module stove 4, thereby being closer to the gas module stove 4, minimizing the length of the gas water pipeline, avoiding resistance loss, heat loss and poor backwater caused by long-distance pipeline. Before ignition, the gas module stove 4 must detect that the water pump 12 has started and the water path is unobstructed through the water flow switch 13. If the water pump 12 is close to the gas module stove 4, the response of the water flow switch 13 is more timely and the signal is more accurate, preventing dry burning accidents caused by no water flow or dead water during ignition, and ensuring that the ignition safety logic is rigorous and reliable.

[0075] As shown in Figure 1 and Figure 4 The integrated gas-electricity complementary cold and hot two-way supply device further includes a controller 100 connected with the heat pump 3, the gas module stove 4 and the gas valve 15 respectively to control the on-off of each component. The heat pump 3 and the gas module stove 4 communicate with each other through one controller 100 to realize efficient and collaborative working condition judgment and switching, avoid communication delay or interference between double controllers 100, and realize fast response and high reliability.

[0076] The water pump 12 is on the water supply pipeline and is used to control the on-off of water flow supplied to the gas module stove 4; the gas valve 15 is used to control the on-off of gas supplied to the gas module stove 4. During system operation, when the user has a heating demand and needs to start the gas unit for heating, the controller 100 first sends a start instruction to the water pump 12 and the gas blower 11, and the water pump 12 drives water flow to the inside of the gas module stove 4 after starting. When the water flow passes through the water flow switch 13, the water flow switch 13 can detect a continuous flow signal in the water path, and then the water flow switch 13 is triggered and sends a signal to the controller 100. After receiving the water flow signal, the controller 100 drives the gas valve 15 to open, starts to ventilate, and turns on the gas module stove 4, so as to realize normal operation and heat output of the gas module stove 4.

[0077] Conversely, when the gas unit is no longer needed to provide heat, the controller 100 will control the gas solenoid valve to close, cut off the gas source, and send a shutdown command to the water pump 12 and the gas blower 11, so that the water pump 12 and the gas blower 11 stop running. With the water pump 12 stopped, the water circulation in the gas module furnace 4 is terminated, the water flow switch 13 cannot detect the flow signal, and the gas module furnace 4 as a whole enters a shutdown standby state, waiting for the next start command.

[0078] In summary, the application provides an integrated gas-electricity complementary cold and heat two combined supply device, which comprises a box body, a partition plate arranged in the box body to divide the box body into a first chamber and a second chamber along the horizontal direction, a heat pump arranged in the first chamber, a gas module furnace arranged in the second chamber, a water supply pipeline having one end connected with an external water supply device and the other end connected with the heat pump and the gas module furnace respectively, and a water supply pipeline having one end connected with a user end and the other end connected with the heat pump and the gas module furnace respectively. Compared with a split system, the heat pump and the gas module furnace are integrated in one box body and arranged linearly, which can effectively save equipment occupation. The whole machine adopts a unified box body, and the water inlet and outlet pipelines, the gas inlet pipeline and the like are provided with quick couplings, so that modular installation can be realized, the installation difficulty and time are greatly reduced, and the installation is more simple and convenient. The integrated design can adopt modular and multiple parallel small gas module furnaces, the gas module furnace can be adjusted as needed, the full load heat load is not required, the power of a single gas module furnace can be less than 100KW, the requirement of special person on duty for special equipment is avoided, the structure is simple and clear, the layout is clear, and the equipment is convenient to install and maintain in the later period. The partition plate arranged between the gas module furnace and the heat pump effectively isolates the two systems, guarantees the relative independence of the two systems, constitutes a compact whole device, and does not cause mutual interference due to stacking.

[0079] Meanwhile, the gas module furnace does not need to be disassembled before the heat pump is maintained or replaced, and the heat pump does not need to be disassembled before the gas module furnace is maintained or replaced, so that the heat pump and the gas module furnace can be independently maintained or replaced; the condensed water flowing down along the fins of the evaporator is discharged from the lower side of the heat pump, and does not flow through the gas module furnace, so that the stability and safety of the operation of the gas module furnace are improved.

[0080] It should be understood that the application of the application is not limited to the above examples, and those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims attached to the application.

Claims

1. An integrated air-electricity complementary cold and heat two-supply device, characterized in that, It comprises: a box; a partition plate arranged in the box, separating the box into a first chamber and a second chamber along a horizontal direction; a heat pump arranged in the first chamber; a gas module furnace arranged in the second chamber; a water supply pipeline, one end of which is connected with an external water supply device, and the other end of which is connected with the heat pump and the gas module furnace respectively; a water supply pipeline, one end of which is connected with an external water supply device, and the other end of which is connected with the heat pump and the gas module furnace respectively.

2. The integrated gas-electric hybrid cooling and heating cogeneration device of claim 1, wherein, The first chamber is further provided with a first horizontal partition plate to divide the first chamber into two layers; The heat pump comprises: a compressor located in the lower layer of the first chamber; a four-way valve located in the lower layer of the first chamber; an evaporator located in the upper layer of the first chamber; a condenser located in the lower layer of the first chamber; the compressor, the four-way valve, the evaporator and the condenser are connected in sequence and form a refrigerant circulation loop.

3. The integrated gas-electric hybrid cooling and heating cogeneration device of claim 2, wherein, It further comprises: a water receiving unit arranged in the upper layer of the first chamber and located below the evaporator.

4. The integrated gas-electric hybrid cooling and heating cogeneration device of claim 2, wherein, It further comprises: a flue gas heat exchanger arranged in the second chamber; one side of the flue gas heat exchanger is connected with the gas module furnace; the other side of the flue gas heat exchanger is connected with the compressor and the four-way valve respectively to access the refrigerant circulation loop.

5. The integrated gas-electric hybrid cooling and heating cogeneration device of claim 4, wherein, The flue gas heat exchanger is located above the gas module furnace.

6. The integrated gas-electric hybrid cooling and heating cogeneration device of claim 4, wherein, In the vertical direction, the flue gas heat exchanger is lower than the evaporator.

7. The integrated gas-electric hybrid cooling and heating cogeneration device of claim 4, wherein, The flue gas heat exchanger and the gas module furnace are arranged in a horizontal direction perpendicular to the arrangement direction of the first chamber and the second chamber.

8. The integrated gas-electric hybrid cooling and heating cogeneration device of claim 4, wherein, It further comprises: a second horizontal partition plate arranged in the second chamber and dividing the second chamber into upper and lower layers; the gas module furnace and the flue gas heat exchanger are located in the lower layer of the second chamber; an exhaust pipe connected with the gas module furnace; the exhaust pipe is vertically arranged in the box and located in the upper layer of the second chamber.

9. The integrated gas-electric hybrid cooling and heating cogeneration device of claim 1, wherein, It further comprises: a water pump arranged on the water supply pipeline; a water flow switch arranged on the water supply pipeline and located between the water pump and the gas module furnace; a gas pipeline connected with an external gas source and the gas module furnace respectively; a gas valve arranged on the gas pipeline; the gas valve is used to open when the water flow switch is triggered.

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