Integrated low-temperature flue gas source heat pump device

Abstract

The utility model relates to an integrated low-temperature flue gas source heat pump device. According to the technical scheme, an outer shell is installed on a prying seat to form an integral structure, a horizontally-arranged heat pump evaporator is installed on a smoke discharging seat, and a smoke inlet seat is installed on the upper side of the heat pump evaporator; one end of the heat pump compressor is connected with the heat pump evaporator through a refrigerant outlet pipe, the other end of the heat pump compressor is connected with the heat pump heat exchanger, a shell pass outlet of the heat pump heat exchanger is connected with a water outlet pipe, and a shell pass inlet of the heat pump heat exchanger is connected with a water inlet pipe. The device has the beneficial effects that the heat pump evaporator, the smoke inlet seat and the smoke exhaust seat are arranged together, the heat pump evaporator, the heat pump heat exchanger and the heat pump compressor are designed together to form a skid-mounted structure, and the heat pump evaporator which is horizontally arranged exchanges heat with smoke of the smoke source boiler; the problem that the heat exchange efficiency of the heat exchange pipe on the lower side of the heat pump evaporator is reduced due to flowing of condensate water is solved, the heat efficiency of the heat pump is improved, and the whole structure is compact, attractive and convenient to transport.

Description

TECHNICAL FIELD

[0001] The utility model relates to a flue gas source boiler waste heat utilization device, especially relates to an integrated low-temperature flue gas source heat pump device. BACKGROUND

[0002] At present, with people's attention degree to environmental protection higher and higher, the flue gas waste heat utilization of flue gas source boiler is put on the agenda, and there are various flue gas source boilers with different structures, which can reduce the exhaust gas temperature to 50~70 DEG C, fully recover the sensible heat and condensation latent heat of water vapor in the flue gas, and can increase the boiler thermal efficiency. However, in order to further reduce energy consumption, people still hope to continue to utilize the flue gas waste heat of flue gas source boiler. And the heat pump technology is a kind of recognized high-efficiency energy-saving device that can fully utilize low-grade heat energy, if the inlet temperature of the evaporator of the heat pump technology can be improved, the thermal efficiency will be greatly improved, the flue gas waste heat of flue gas source boiler is fully utilized, and the energy consumption is reduced.

[0003] The existing problems of prior art are that: the existing heat pump device generally adopts split structure, is not designed as a whole, in addition, in order to save space, the evaporator for flue gas waste heat utilization is generally placed vertically, and the vertical placement has the following disadvantages: condensate water will inevitably be produced in the evaporator, the condensate water will flow to the lower heat exchange tube under the action of gravity, and the continuously flowing condensate water will affect the heat exchange efficiency of the lower heat exchange tube and flue gas.

[0004] Therefore, in order to solve the above problems, an integrated low-temperature flue gas source heat pump device is designed. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at the above-mentioned defects in the prior art, provides an integrated low-temperature flue gas source heat pump device, the heat pump device is designed as a whole structure, and the heat exchange between the horizontally placed heat pump evaporator and the flue gas from the upper side is utilized, so that the problem of heat exchange efficiency reduction of the lower heat exchange tube caused by the downward flow of condensate water is avoided, the utilization rate of flue gas heat is improved, the thermal efficiency of the heat pump is improved, and the whole structure is compact, beautiful and easy to move.

[0006] The utility model discloses a kind of integrated low-temperature flue gas source heat pump devices, its technical scheme is: including pry seat (1), water storage tank (2), heat pump evaporator (4), smoke inlet seat (5), smoke inlet pipe (6), smoke exhaust pipe (7), exhaust fan (8), water inlet pipe (9), water outlet pipe (10), heat pump heat exchanger (11), heat pump compressor (12), expansion valve (13), refrigerant inlet pipe (14), refrigerant outlet pipe (15), smoke exhaust seat (17) and outer shell (19), the outer shell (19) is installed in pry seat (1), pry seat (1) one side installs water storage tank (2), smoke exhaust seat (17) is installed on water storage tank (2), horizontally placed heat pump evaporator (4) is installed on smoke exhaust seat (17), the upper side of heat pump evaporator (4) is installed smoke inlet seat (5), the upper side of smoke inlet seat (5) is connected smoke inlet pipe (6), the outer side of smoke exhaust seat (17) is connected smoke exhaust pipe (7), and the middle part of smoke exhaust pipe (7) is installed exhaust fan (8);The other side of pry seat (1) is installed heat pump heat exchanger (11) and heat pump compressor (12), and one end of heat pump compressor (12) is connected heat pump evaporator (4) by refrigerant outlet pipe (15), the other end is connected heat pump heat exchanger (11), the pipe pass outlet of heat pump heat exchanger (11) is connected to heat pump evaporator (4) by refrigerant inlet pipe (14) and expansion valve (13), the shell pass outlet of heat pump heat exchanger (11) is connected water outlet pipe (10), and the shell pass import of heat pump heat exchanger (11) is connected water inlet pipe (9).

[0007] Preferably, the heat pump evaporator (4) includes an evaporator shell (4.1), a refrigerant outlet communication pipe (4.2), a refrigerant inlet (4.3), and an evaporator heat exchange pipe (4.4). One or more evaporator heat exchange pipes (4.4) are installed in the evaporator shell (4.1). The inlet end of the evaporator heat exchange pipe (4.4) is connected to the refrigerant inlet (4.3) outside the evaporator shell (4.1), and the outlet end is connected to the refrigerant outlet communication pipe (4.2) outside the evaporator shell (4.1).

[0008] Preferably, the water storage tank (2) is provided with a water storage tank drain pipe (16) on the outer wall.

[0009] Preferably, the lower end of the smoke inlet seat (5) is provided with a smoke exhaust seat drain pipe (18), and the smoke exhaust seat drain pipe (18) is a bent pipe structure.

[0010] Preferably, the other side of the pry seat (1) is provided with a support frame (3), and one or more heat pump heat exchangers (11) are installed on the upper side of the support frame (3). The heat pump compressor (12) is installed between the support frame (3) and the pry seat (1).

[0011] The utility model discloses an advantageous effect is: the utility model discloses a heat pump evaporator and the smoke inlet seat and the smoke exhaust seat are set together, then, through the pry seat, heat pump evaporator and heat pump heat exchanger, heat pump compressor design together form integral type structure, and utilize the heat exchange of heat pump evaporator and flue gas source boiler's flue gas of horizontal placement, on one hand can avoid the problem that the heat exchange efficiency of the lower side heat exchange pipe of heat pump evaporator is reduced by the cold condensate trickling from top to bottom, on the other hand, make full use of the waste heat of low-temperature flue gas, improve the utilization of flue gas heat, further improve the thermal efficiency of heat pump, and because adopt pry structure, the overall structure is compact, beautiful, easy to move, convenient transportation. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the appearance schematic diagram of the utility model;

[0013] Figure 2 It is the internal structure schematic diagram of the utility model;

[0014] Figure 3 It is the connection schematic diagram of heat pump evaporator and smoke inlet seat and smoke exhaust seat;

[0015] Figure 4 It is the side structure schematic diagram of heat pump evaporator;

[0016] In the above figure: pry seat 1, water storage tank 2, support frame 3, heat pump evaporator 4, smoke inlet seat 5, smoke inlet pipe 6, smoke exhaust pipe 7, exhaust fan 8, water inlet pipe 9, water outlet pipe 10, heat pump heat exchanger 11, heat pump compressor 12, expansion valve 13, refrigerant inlet pipe 14, refrigerant outlet pipe 15, water storage tank drain pipe 16, smoke exhaust seat 17, smoke exhaust seat drain pipe 18, outer shell 19;Evaporator shell 4.1, refrigerant outlet communication pipe 4.2, refrigerant inlet 4.3 and evaporator heat exchange pipe 4.4. DETAILED DESCRIPTION

[0017] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described here are only for illustrating and explaining the utility model, and are not used for limiting the utility model.

[0018] Example 1, refer to Figures 1-4The utility model provides a kind of integrated low-temperature flue gas source heat pump device, including pry seat 1, water storage tank 2, heat pump evaporator 4, smoke inlet seat 5, smoke inlet pipe 6, smoke exhaust pipe 7, exhaust fan 8, water inlet pipe 9, water outlet pipe 10, heat pump heat exchanger 11, heat pump compressor 12, expansion valve 13, refrigerant inlet pipe 14, refrigerant outlet pipe 15, smoke exhaust seat 17 and outer shell 19, the outer shell 19 is installed in pry seat 1, pry seat 1 one side installs water storage tank 2, installs smoke exhaust seat 17 on water storage tank 2, horizontally placed heat pump evaporator 4 is installed on smoke exhaust seat 17, the upper side of heat pump evaporator 4 is installed smoke inlet seat 5, the upper side of smoke inlet seat 5 is connected smoke inlet pipe 6, the outer side of smoke exhaust seat 17 is connected smoke exhaust pipe 7, and the middle part of smoke exhaust pipe 7 is installed exhaust fan 8;The other side of pry seat 1 is installed heat pump heat exchanger 11 and heat pump compressor 12, and one end of heat pump compressor 12 is connected heat pump evaporator 4 by refrigerant outlet pipe 15, the other end is connected heat pump heat exchanger 11, the pipe pass outlet of heat pump heat exchanger 11 is connected to heat pump evaporator 4 by refrigerant inlet pipe 14 and expansion valve 13, the shell pass outlet of heat pump heat exchanger 11 is connected water outlet pipe 10, and the shell pass import of heat pump heat exchanger 11 is connected water inlet pipe 9.

[0019] Refer to Figure 4 The heat pump evaporator 4 mentioned in the utility model includes evaporator shell body 4.1, refrigerant outlet communication pipe 4.2, refrigerant inlet 4.3 and evaporator heat exchange pipe 4.4, more than one evaporator heat exchange pipe 4.4 is installed in evaporator shell body 4.1, the inlet end of evaporator heat exchange pipe 4.4 is connected refrigerant inlet 4.3 outside evaporator shell body 4.1, and the outlet end is connected to refrigerant outlet communication pipe 4.2 outside evaporator shell body 4.1.

[0020] Refer to Figure 1 And Figure 2 The outer wall of the above-mentioned water storage tank 2 is installed water storage tank drain pipe 16, can form condensate water in outer shell 19, along water storage tank 2 and water storage tank drain pipe 16 flow out.

[0021] Refer to Figure 3 The lower end of the smoke inlet seat 5 mentioned in the utility model is provided with smoke exhaust seat drain pipe 18, and the smoke exhaust seat drain pipe 18 is a bend pipe structure, which can make the condensate water formed in the heat pump evaporator, smoke inlet seat and smoke exhaust seat inner cavity along the smoke exhaust seat drain pipe 18, adopt bend pipe structure, can make inner end below condensate water surface, play the role of water seal, avoid flue gas leakage.

[0022] In addition, refer to Figure 2 The other side of pry seat 1 is installed support frame 3, more than one heat pump heat exchanger 11 is installed on the upper side of support frame 3, heat pump compressor 12 is installed between support frame 3 and pry seat 1, this part structure is prior art, here will not be described in detail.

[0023] The utility model uses, after the flue gas of boiler produces is discharged, through the pipeline connection to the smoke inlet pipe 6 of the utility model, under the action of the exhaust fan 8, the flue gas is inhaled to the smoke inlet seat 5 through the smoke inlet pipe 6, then, along the heat pump evaporator 4 downward, the low temperature flue gas of 50~70 DEG C exchanges heat with the refrigerant from the refrigerant inlet pipe 14 in evaporator heat exchange pipe 4.4, and is discharged to the atmosphere along the smoke exhaust pipe 7 again;Because the heat pump evaporator 4 adopts horizontal placement, therefore, the condensate water uniformly flows downward, directly falls into the sink under the smoke exhaust seat 17, and the condensate water is discharged along the smoke exhaust seat drain pipe 18, avoids the problem that the condensate water flows along the evaporator heat exchange pipe 4.4 in sequence when the heat pump evaporator 4 is placed vertically, thereby influences the heat exchange between the flue gas and the pipe wall of evaporator heat exchange pipe 4.4, avoids the problem that the heat exchange effect of evaporator heat exchange pipe 4.4 upside is good, and the heat exchange effect of downside is not good, reduces the influence on the heat exchange efficiency;

[0024] Then, the refrigerant after heat absorption is sent into heat pump compressor 12 again through refrigerant outlet pipe 15 and is compressed, and then heat pump compressor 12 sends the high-temperature and high-pressure refrigerant into heat pump heat exchanger 11 to exchange heat, heats the water from water inlet pipe 9, and hot water is sent to the user through water outlet pipe 10, and the refrigerant is recycled to heat pump evaporator 4 through refrigerant outlet pipe 15 and expansion valve 13 and continues to circulate.

[0025] In addition, because the integral pry structure is adopted, the outer shell 19 is integrally installed on the pry seat 1, the smoke inlet pipe 6 is arranged on one side of the outer shell 19, the smoke exhaust pipe 7 is arranged on the top, the water inlet pipe 9 and the water outlet pipe 10 are arranged on the other side of the outer shell 19, and the whole is convenient to move, convenient to use and convenient to transport.

[0026] The utility model discloses a low temperature flue gas source heat pump device of integral type, including pry seat 1, water storage tank 2, heat pump evaporator 4, smoke inlet seat 5, smoke inlet pipe 6, smoke exhaust pipe 7, exhaust fan 8, water inlet pipe 9, water outlet pipe 10, heat pump heat exchanger 11, heat pump compressor 12, expansion valve 13, refrigerant inlet pipe 14, refrigerant outlet pipe 15, smoke exhaust seat 17 and outer shell 19, the outer shell 19 is installed in pry seat 1, and pry seat 1 installs water storage tank 2 on one side, and installs smoke exhaust seat 17 on water storage tank 2, and installs the heat pump evaporator 4 of horizontal placement on smoke exhaust seat 17, and the upper side of heat pump evaporator 4 installs smoke inlet seat 5, and the upper side of smoke inlet seat 5 is connected with smoke inlet pipe 6, the outer side of smoke exhaust seat 17 is connected with smoke exhaust pipe 7, and the middle part of smoke exhaust pipe 7 is installed exhaust fan 8, the other side of pry seat 1 installs heat pump heat exchanger 11 and heat pump compressor 12, and one end of heat pump compressor 12 is connected with heat pump evaporator 4 through refrigerant outlet pipe 15, and the other end is connected with heat pump heat exchanger 11, and the pipe pass outlet of heat pump heat exchanger 11 is connected to heat pump evaporator 4 through refrigerant inlet pipe 14 and expansion valve 13, and the shell pass outlet of heat pump heat exchanger 11 is connected with water outlet pipe 10, and the shell pass import of heat pump heat exchanger 11 is connected with water inlet pipe 9.

[0027] The difference from example 1 is:

[0028] The heat pump heat exchanger 11 adopts 2 groups or more, specifically, 2 groups or more heat exchange pipes are arranged in the heat pump heat exchanger 11, which are connected to multiple groups of heat pump compressors 12 through multiple sets of refrigerant inlet pipes 14 and refrigerant outlet pipes 15, so that the heating of larger displacement hot water can be realized.

[0029] The above is only the preferred embodiment of the utility model, and any skilled person in the art can modify the utility model by using the above-mentioned technical solutions or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent transformation according to the technical scheme of the utility model is within the scope of protection required by the utility model.

Claims

1. An integrated low-temperature flue gas source heat pump device, comprising a pry seat (1), a heat pump evaporator (4), a water inlet pipe (9), a water outlet pipe (10), a heat pump heat exchanger (11), a heat pump compressor (12), an expansion valve (13), a refrigerant inlet pipe (14), and a refrigerant outlet pipe (15), the other side of the pry seat (1) is provided with the heat pump heat exchanger (11) and the heat pump compressor (12), one end of the heat pump compressor (12) is connected to the heat pump evaporator (4) through the refrigerant outlet pipe (15), and the other end is connected to the heat pump heat exchanger (11), the tube side outlet of the heat pump heat exchanger (11) is connected to the heat pump evaporator (4) through the refrigerant inlet pipe (14) and the expansion valve (13), the shell side outlet of the heat pump heat exchanger (11) is connected to the water outlet pipe (10), and the shell side inlet of the heat pump heat exchanger (11) is connected to the water inlet pipe (9), characterized in that: Also include water storage tank (2), smoke into the seat (5), smoke into the pipe (6), exhaust pipe (7), exhaust fan (8), smoke exhaust seat (17) and the outer shell (19), the outer shell (19) is installed in pry seat (1), pry seat (1) one side installation water storage tank (2), on the water storage tank (2) installation smoke exhaust seat (17), smoke exhaust seat (17) installation horizontal hot pump evaporator (4), hot pump evaporator (4) on the upper side installation smoke into the seat (5), smoke into the seat (5) on the upper side connection smoke into the pipe (6), the outer side of the smoke exhaust seat (17) connection exhaust pipe (7), and the middle part of exhaust pipe (7) installation exhaust fan (8). ​ 2. An integrated low temperature flue gas source heat pump device according to claim 1, characterized in that: The hot pump evaporator (4) includes evaporator shell (4.1), refrigerant outlet communication pipe (4.2), refrigerant inlet (4.3) and evaporator heat exchange pipe (4.4), more than one evaporator heat exchange pipe (4.4) is installed in the evaporator shell (4.1), the inlet end of the evaporator heat exchange pipe (4.4) is connected with the refrigerant inlet (4.3) outside the evaporator shell (4.1), and the outlet end is connected to the refrigerant outlet communication pipe (4.2) outside the evaporator shell (4.1).

3. An integrated low temperature flue gas source heat pump device according to claim 2, characterized in that: The outer wall of the water storage tank (2) is provided with a water storage tank drain pipe (16).

4. An integrated low temperature flue gas source heat pump device according to claim 3, characterized in that: The lower end of the smoke into the seat (5) is provided with a smoke exhaust seat drain pipe (18), and the smoke exhaust seat drain pipe (18) is a bent pipe structure.

5. An integrated low temperature flue gas source heat pump apparatus according to claim 4, characterised in that: The other side of the pry seat (1) is provided with a support frame (3), and more than one hot pump heat exchanger (11) is installed on the upper side of the support frame (3). The hot pump compressor (12) is installed between the support frame (3) and the pry seat (1).

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