Energy-saving cold and hot combined heat supply recovery cold and hot water unit

Abstract

The utility model discloses an energy-saving cold and hot combined heat supply recovery cold and hot water unit which comprises a heat exchange box body, an S-shaped heat exchange structure is arranged in the heat exchange box body, the S-shaped heat exchange structure is sequentially provided with an inner pipeline, a middle pipeline and an outer pipeline from inside to outside, a first water channel is arranged between the inner pipeline and the middle pipeline, and a second water channel is arranged between the middle pipeline and the outer pipeline. The two ends of the inner pipeline extend to the outside to be provided with a first water inlet pipe and a first water outlet pipe respectively, and the two ends of the first water channel are provided with a second water inlet pipe and a second water outlet pipe respectively. Compared with the prior art, the heat exchanger has the advantages that the inner pipeline, the middle pipeline and the outer pipeline are sequentially arranged from inside to outside, waste hot water is introduced between the inner pipeline and the middle pipeline, and cold water needing heat exchange is introduced between the middle pipeline and the middle pipeline and the outer pipeline, so that all-directional heat exchange can be ensured; and the heat loss is reduced to the maximum extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat waste utilization operation, concretely refers to a kind of energy-saving cold and heat supply heat recovery cold and hot water unit. BACKGROUND

[0002] Heat recovery technology is to recycle the large amount of waste heat discharged to the outside during the operation of the water chiller by certain means, as the final heat source or primary heat source for users.

[0003] The most common heat recovery method in the prior art is cold and heat exchange, but the cold and heat exchange equipment in the prior art is a simple heat exchanger. Although this type of heat exchanger can achieve energy-saving effect, a large amount of heat is lost during the heat exchange process, resulting in relatively low energy-saving effect. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide an energy-saving cold and heat supply heat recovery cold and hot water unit with good energy-saving effect in view of the deficiencies in the above background technology.

[0005] To solve the above technical problems, the utility model provides the technical scheme as follows: an energy-saving cold and heat supply heat recovery cold and hot water unit, comprising a heat exchange box main body, an S-shaped heat exchange structure is connected inside the heat exchange box main body, the S-shaped heat exchange structure is sequentially connected with an inner pipe, a middle pipe and an outer pipe from inside to outside, a first water channel is arranged between the inner pipe and the middle pipe, and a second water channel is arranged between the middle pipe and the outer pipe.

[0006] The inner pipe is connected with a first water inlet pipe and a first water outlet pipe at both ends, the first water channel is connected with a second water inlet pipe and a second water outlet pipe at both ends, and the second water channel is connected with a third water inlet pipe and a third water outlet pipe at both ends.

[0007] Further, a first temperature sensor is connected to the first water inlet pipe and the first water outlet pipe, a second temperature sensor is connected to the second water inlet pipe and the second water outlet pipe, a third temperature sensor is connected to the third water inlet pipe and the third water outlet pipe, a first flow control valve, a second flow control valve and a third flow control valve are respectively connected to the first water inlet pipe, the second water inlet pipe and the third water inlet pipe, so as to facilitate adjusting the flow rate of water flow according to temperature.

[0008] Further, a one-way valve is connected to the first water outlet pipe, the second water outlet pipe and the third water outlet pipe, so as to prevent water backflow.

[0009] Further, a sealing and heat insulation maintenance door is connected to the outside of the heat exchange box main body, so as to facilitate maintenance and repair operations.

[0010] Further, the outer pipeline outside is wrapped with a first heat insulation cotton layer, and the heat exchange box body inside is connected with a second heat insulation cotton layer, so that heat loss can be further prevented.

[0011] Compared with the prior art, the energy-saving cold and heat supply heat recovery cold and hot water machine unit has the advantages that: the inner pipeline, the middle pipeline and the outer pipeline are sequentially arranged from inside to outside, waste hot water is passed between the inner pipeline and the middle pipeline, cold water needing heat exchange is passed between the middle pipeline and the outer pipeline, so that omnidirectional heat exchange can be guaranteed, and heat loss can be maximally reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic view of the energy-saving cold and heat supply heat recovery cold and hot water machine unit.

[0013] Figure 2 is a structural schematic view of the energy-saving cold and heat supply heat recovery cold and hot water machine unit.

[0014] Figure 3 is a structural schematic view of the energy-saving cold and heat supply heat recovery cold and hot water machine unit.

[0015] Figure 4 is a structural schematic view of the energy-saving cold and heat supply heat recovery cold and hot water machine unit.

[0016] As shown in the figure: 1, heat exchange box body; 2, inner pipeline; 3, middle pipeline; 4, outer pipeline; 5, first water channel; 6, second water channel; 7, first heat insulation cotton layer; 8, first water inlet pipe; 9, first water outlet pipe; 10, second water inlet pipe; 11, second water outlet pipe; 12, third water inlet pipe; 13, third water outlet pipe; 14, first flow control valve; 15, first temperature sensor; 16, second flow control valve; 17, second temperature sensor; 18, third flow control valve; 19, third temperature sensor; 20, second heat insulation cotton layer; 21, sealing heat insulation maintenance door; 22, S-shaped heat exchange structure; 23, one-way valve. DETAILED DESCRIPTION

[0017] The utility model makes further detailed description in combination with the drawings.

[0018] In combination with the drawings Figures 1-4The utility model provides an energy -conserving cold -heat combined heat recovery cold -hot water unit, including the heat exchange box main body 1, be connected with S type heat exchange structure 22 in the heat exchange box main body 1, S type heat exchange structure 22 is connected with the inner pipeline 2, the middle pipeline 3 and the outer pipeline 4 in proper order from inside to outside, be equipped with the first water channel 5 between the inner pipeline 2 and the middle pipeline 3, be equipped with the second water channel 6 between the middle pipeline 3 and the outer pipeline 4, the inner pipeline 2 both ends extend to the outer part and be equipped with first water inlet pipe 8 and first water outlet pipe 9 respectively, the first water channel 5 both ends are equipped with second water inlet pipe 10 and second water outlet pipe 11 respectively, the second water channel 6 both ends are equipped with third water inlet pipe 12 and third water outlet pipe 13 respectively.

[0019] In the specific implementation, the waste heat water is passed into the first water channel 5 through the second water inlet pipe 10, and then the cold water needing heat exchange is passed into the inner pipeline 2 and the second water channel 6 through the first water inlet pipe 8 and the third water inlet pipe 12, so that the waste heat water can be simultaneously heat-exchanged with the inner and outer pipelines, thereby the heat exchange operation can be carried out with maximum efficiency, and the energy loss is reduced. Meanwhile, in the actual setting, the thickness of the outer pipeline 4 is greater than that of the inner pipeline 2 and the middle pipeline 3, so that the heat loss can be reduced.

[0020] The first temperature sensor 15 is connected to the first water inlet pipe 8 and the first water outlet pipe 9, the second temperature sensor 17 is connected to the second water inlet pipe 10 and the second water outlet pipe 11, and the third temperature sensor 19 is connected to the third water inlet pipe 12 and the third water outlet pipe 13. The first flow control valve 14, the second flow control valve 16 and the third flow control valve 18 are respectively connected to the first water inlet pipe 8, the second water inlet pipe 10 and the third water inlet pipe 12. The one-way valve 23 is connected to the first water outlet pipe 9, the second water outlet pipe 11 and the third water outlet pipe 13.

[0021] The first temperature sensor 15, the second temperature sensor 17 and the third temperature sensor 19 at both ends can sense the temperature of the inlet and outlet water, so that the flow rate of the water can be controlled according to the direction of the inlet water. For example, if the temperature of the heat-exchanged cold water in the outlet pipe of the drainage end is much lower than that of the outlet pipe of the hot waste water, the flow rate can be slowed down, and vice versa.

[0022] The sealing heat insulation maintenance door 21 is connected to the outside of the heat exchange box main body 1, so that the internal maintenance can be carried out according to the temperature. The first heat insulation cotton layer 7 is wrapped around the outside of the outer pipeline 4, and the second heat insulation cotton layer 20 is connected to the inside of the heat exchange box main body 1, so that the energy loss can be further reduced.

[0023] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. An energy-saving combined cooling and heating heat recovery hot and cold water unit, comprising a heat exchange box main body (1), characterized in that: The heat exchange box body (1) is internally connected with an S-shaped heat exchange structure (22), which is sequentially connected with an inner pipeline (2), a middle pipeline (3) and an outer pipeline (4) from inside to outside, a first water channel (5) is arranged between the inner pipeline (2) and the middle pipeline (3), and a second water channel (6) is arranged between the middle pipeline (3) and the outer pipeline (4). The inner pipeline (2) extends to the outer side and is connected with a first water inlet pipe (8) and a first water outlet pipe (9), respectively, the first water channel (5) is connected with a second water inlet pipe (10) and a second water outlet pipe (11), respectively, and the second water channel (6) is connected with a third water inlet pipe (12) and a third water outlet pipe (13), respectively.

2. The energy-saving combined cooling and heating heat-recovery water chiller-heater unit as claimed in claim 1, characterized in that: A first temperature sensor (15) is connected to the first water inlet pipe (8) and the first water outlet pipe (9), a second temperature sensor (17) is connected to the second water inlet pipe (10) and the second water outlet pipe (11), a third temperature sensor (19) is connected to the third water inlet pipe (12) and the third water outlet pipe (13), a first flow control valve (14), a second flow control valve (16) and a third flow control valve (18) are connected to the first water inlet pipe (8), the second water inlet pipe (10) and the third water inlet pipe (12), respectively.

3. The energy-saving combined cooling and heating heat-recovery water chiller-heater unit as claimed in claim 1, characterized in that: The first water outlet pipe (9), the second water outlet pipe (11) and the third water outlet pipe (13) are all connected with a one-way valve (23).

4. The energy-saving combined cooling and heating heat-recovery water chiller-heater unit as claimed in claim 1, characterized in that: The heat exchange box body (1) is externally connected with a sealed heat insulation maintenance door (21).

5. The energy-saving combined cooling and heating heat-recovery water chiller-heater unit as claimed in claim 1, characterized in that: The outer pipeline (4) is wrapped with a first heat insulation cotton layer (7), and the heat exchange box body (1) is internally connected with a second heat insulation cotton layer (20).

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