CN214223454U

CN214223454U - Backflow type built-in evaporator

Info

Publication number: CN214223454U
Application number: CN202022444284.7U
Authority: CN
Inventors: 王磊
Original assignee: Shandong Province Binzhou Huonuniao New Energy Technology Co ltd
Current assignee: Hebei Jingyuan Renewable Resources Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-09-17
Anticipated expiration: 2030-10-29

Abstract

A backflow type built-in evaporator relates to the field of water source heat pump utilization engineering, in particular to a heat exchanger which can be built in a well. The air guide sleeve consists of a shell, an exchange core and an air guide sleeve, and is characterized in that: the shell is cylindrical, the upper end of the shell is provided with a fixed flange, a fixed hole, a water inlet, a medium outlet and a pressure relief spare hole are reserved on the fixed flange, the periphery of the upper end of the shell is reserved with a water outlet, and the inner side of the water inlet is provided with a flow guide pipe; the exchange core is formed by winding or welding a coil pipe, one end of the exchange core is connected with the medium leading-in pipe, and the other end of the exchange core is connected with the medium leading-out pipe; the exchange core is assembled in the shell, the medium leading-in pipe is led out of the shell through the medium inlet, and the medium leading-out pipe is led out of the shell through the medium outlet; the air guide sleeve is arranged on the outer side of the shell. The invention can be fixed at the upper end of the backwater well and deeply arranged underground, so that the heat exchange process is not easy to freeze, and the arrangement of the flow-buffering plate and the flow-guiding cover is not easy to generate the flow erosion phenomenon.

Description

Backflow type built-in evaporator

Technical Field

The utility model relates to a water source heat pump utilizes the engineering field, concretely relates to can embed heat exchanger to in well.

Background

Nowadays, a water source heat pump system gradually replaces an air conditioning system due to its high efficiency, energy saving, heating in winter and cooling in summer, and especially the energy saving effect of the water source heat pump is more obvious, and the water source heat pump system gradually becomes a standard configuration of high-density building groups such as homes, schools, hospitals, office buildings and the like. The water source heat pump needs to draw underground water as a basic temperature medium for temperature exchange; because the temperature of the underground water foundation is constant, the heat of the underground water displaced in winter is led into the room for heating; in summer, the cold energy of the replaced underground water is led into the room for refrigeration.

The existing underground water source well generally utilizes a water taking well and a water returning well; after the water in the water taking well is extracted, the cold water or hot water generated after the exchange of the water source heat pump compressor is introduced into the backwater well for recharging or is introduced into a sewer. Because the water source heat pump unit integrally runs on the ground, the pipeline heat insulation measures in winter are improper to treat and are easy to freeze and block, and the whole system is paralyzed. For example, sudden power failure in winter often occurs catastrophically to a water source heat pump system, and the situations that a thawing system is broken down and a pipeline is frozen and cracked frequently occur. Therefore, in order to solve the problems, companies design a built-in evaporator water return well combination.

The utility model provides a built-in evaporimeter return water well combination, needs assemble the return water well to water source heat pump set's evaporimeter modification, can effectively avoid the circulating water winter like this and freeze stifled drawback, consequently, design neotype evaporimeter combination that can place in the return water well in is especially necessary.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in: aiming at the requirements, a backflow type built-in evaporator is provided, the evaporator of the water source heat pump unit is moved out of the machine body, is arranged in the well body of the water return well, and can be tightly combined with the upper port of the water return well.

The utility model provides a technical scheme that its technical problem adopted is: the backflow type built-in evaporator is composed of a shell, an exchange core and a flow guide cover, and is characterized in that: the shell is cylindrical, the upper end of the shell is provided with a fixed flange, a fixed hole, a water inlet, a medium outlet and a pressure relief spare hole are reserved on the fixed flange, the periphery of the upper end of the shell is reserved with a water outlet, and the inner side of the water inlet is provided with a flow guide pipe; the exchange core is formed by winding or welding a coil pipe, one end of the exchange core is connected with the medium leading-in pipe, and the other end of the exchange core is connected with the medium leading-out pipe; the exchange core is assembled in the shell, the medium leading-in pipe is led out of the shell through the medium inlet, and the medium leading-out pipe is led out of the shell through the medium outlet; the air guide sleeve is arranged on the outer side of the shell.

As described above, the exchange core can be selectively assembled with a baffle that is half-moon shaped.

As described above, the flow slowing plate is selectively arranged on the inner side of the lower end of the shell, the flow guide pipe penetrates through the middle of the flow slowing plate, and the periphery of the flow slowing plate is a circular plate densely distributed with small holes.

As described above, the fixing flange of the evaporator can be tightly coupled to the wellhead of the return water well.

The utility model discloses a beneficial effect is: the utility model discloses a can fix in return water well upper end, put the underground deeply, accomplish heat exchange's in-process and be difficult for freezing the game, then again, have the setting of buffer plate and kuppe, be difficult for producing the erosion phenomenon.

Drawings

The utility model will be further explained with reference to the attached drawings

Fig. 1 is a front sectional view of the utility model.

Fig. 2 is a top view of the utility model.

Fig. 3 is a schematic diagram of the practical application structure of the utility model.

Figure 4 is a front view of the half moon shaped deflector of the utility model.

Fig. 5 is a front view of the flow slowing plate of the utility model.

In the figure 1, a shell 11 is provided with a fixing flange 111, a water inlet 112, a medium inlet 113, a medium outlet 114, a medium outlet 115, a pressure relief spare hole 12, a water outlet 13, a draft tube 14, a slow flow plate 2, an exchange core 21, a coil 22, a medium leading-in tube 23, a medium leading-out tube 24, a draft tube 3, a draft hood 4 and a water return well.

Detailed Description

The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the reflux type internal evaporator of the present embodiment is composed of a casing 1, an exchange core 2, and a draft shield 3, and is characterized in that: the shell 1 is cylindrical, the upper end is a fixed flange 11, a fixed hole 111, a water inlet 112, a medium inlet 113, a medium outlet 114 and a pressure relief spare hole 115 are reserved on the fixed flange, a water outlet 12 is reserved on the periphery of the upper end of the shell 1, and a flow guide pipe 13 is arranged on the inner side of the water inlet 112; the exchange core 2 is formed by winding or welding a coil pipe 21, one end of the exchange core is connected with a medium leading-in pipe 22, and the other end of the exchange core is connected with a medium leading-out pipe 23; the exchange core 2 is assembled in the shell 1, the medium leading-in pipe 22 is led out of the shell 1 through the medium inlet 113, and the medium leading-out pipe 23 is led out of the shell 1 through the medium outlet 114; the air guide sleeve 3 is arranged outside the shell 1.

Circulating water enters the shell 1 from the water inlet 112, is guided to the bottom of the shell 1 by the guide pipe 13 and then flows upwards in a backflow mode; then flows out from the water outlet 12; the circulating medium of the water source heat pump unit flows into the exchange core 2 through the medium leading-in pipe 22 and then flows out of the exchange core 2 through the medium leading-out pipe 23 to return to the water source heat pump unit. The circulating medium absorbs the heat or cold in the circulating water through the wall of the coil pipe to complete heat exchange.

As shown in fig. 3, in the backflow type internal evaporator of the present embodiment, the fixing flange 11 of the backflow type internal evaporator can be tightly combined with the return well flange. A flange is preset at the upper end of the return well 4, and a fixing hole or a fixing screw hole is reserved on the periphery of the flange; is used for sealing and fixing the backflow type built-in evaporator.

The backflow type built-in evaporator is tightly combined with a wellhead flange of the water return well 4 through a fixed flange 11, a water outlet 12 is arranged in the water return well 4, and circulating water discharged from the water outlet 12 is directly discharged into the water return well 4; the diversion cover 3 is arranged, so that the circulating water overflowing from the water outlet 12 is prevented from scouring the well wall; meanwhile, the backflow type built-in evaporator is tightly combined with the well head, so that the water in the water return well 4 does not have the chance of overflowing and can only be rewetted by the lower water system.

As shown in fig. 4, in the return flow type internal evaporator of the present embodiment, the exchanging core 2 can be selectively provided with the baffle plate 24. The guide plate 24 is semicircular, and the guide plate 24 is fixed on the coil pipe 21 and is installed in a left-right interval.

The guide plate 24 is used for changing the water flow direction from left to right, so that the circulating water is uniformly contacted with the coil pipe 21, and the heat exchange efficiency is improved.

As shown in fig. 5, in the reflux-type internal evaporator of the present embodiment, a baffle plate 14 is selectively provided inside the lower end of the casing 1, the draft tube 13 penetrates through the middle of the baffle plate 14, and the peripheral side of the baffle plate 14 is a circular plate with densely-distributed small holes.

The flow-buffering plate 14 is used for buffering the impact force of water flow introduced by the flow-guiding pipe 13 and reducing the strong impact of high-speed water flow on the coil pipe 21, which causes local damage, namely, the phenomenon of flow erosion at ordinary times.

It should be understood that: the above embodiments are only used for illustrating the technical solutions of the present invention, but not for limiting the same, and it is obvious for those skilled in the art to modify the technical solutions described in the above embodiments or to substitute some technical features thereof; and all such modifications and alterations should fall within the scope of the appended claims.

Claims

1. The backflow type built-in evaporator is composed of a shell, an exchange core and a flow guide cover, and is characterized in that: the shell is cylindrical, the upper end of the shell is provided with a fixed flange, a fixed hole, a water inlet, a medium outlet and a pressure relief spare hole are reserved on the fixed flange, the periphery of the upper end of the shell is reserved with a water outlet, and the inner side of the water inlet is provided with a flow guide pipe; the exchange core is formed by winding or welding a coil pipe, one end of the exchange core is connected with the medium leading-in pipe, and the other end of the exchange core is connected with the medium leading-out pipe; the exchange core is assembled in the shell, the medium leading-in pipe is led out of the shell through the medium inlet, and the medium leading-out pipe is led out of the shell through the medium outlet; the air guide sleeve is arranged on the outer side of the shell.

2. A reflux-type internal evaporator as set forth in claim 1, wherein: the exchange core can be selectively assembled with a guide plate, and the guide plate is half-moon-shaped.

3. A reflux-type internal evaporator as set forth in claim 1, wherein: the flow slowing plate is selectively arranged on the inner side of the lower end of the shell, the flow guide pipe penetrates through the middle of the flow slowing plate, and the periphery of the flow slowing plate is a circular plate densely provided with small holes.

4. A reflux-type internal evaporator as set forth in claim 1, wherein: the mounting flange of evaporimeter can be with return water well head close coupling.