CN212988097U

CN212988097U - Anti-freezing protection type heat exchanger

Info

Publication number: CN212988097U
Application number: CN202020598850.7U
Authority: CN
Inventors: 陈祥华
Original assignee: Zhejiang Waiting New Energy Technology Co ltd
Current assignee: Zhejiang Waiting New Energy Technology Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-04-16
Anticipated expiration: 2030-04-21

Abstract

The invention discloses an anti-freezing protection type heat exchanger, which comprises an outer shell; the inner shell is arranged inside the outer shell at intervals; a heat exchange member disposed inside the inner case; the temperature control protection system is arranged in the outer shell; the temperature control protection system comprises a temperature probe and a temperature controller, wherein the temperature probe is arranged between the inner shell and the heat exchange component and is electrically connected with the temperature controller, the temperature control protection system further comprises a phase change material, the interval between the outer shell and the inner shell is a jacket layer, and the phase change material is filled in the jacket layer. The invention has the advantages that: through setting up control by temperature change protection system, can carry out real-time supervision to the inside temperature of heat exchanger, adjust when the temperature is crossed lowly to phase change material makes the heat exchanger still can avoid the temperature to cross lowly under the extreme condition and causes the cracked problem of pipeline, influences the use of heat exchanger.

Description

Anti-freezing protection type heat exchanger

Technical Field

The utility model relates to a freeze protection type heat exchanger belongs to refrigeration plant technical field.

Background

Air conditioning refrigeration is currently the most common building/industry requirement worldwide. The most important way of air-conditioning for buildings is to produce low-temperature water (usually 7 ℃) by using central air-conditioning equipment, convey the water to the interior by a water pump, and convey cold air to the interior after heat exchange is realized by an air heat exchanger at the indoor end so as to meet the indoor refrigeration requirement in summer. In the process, one of the keys for ensuring the stable and reliable operation of the air conditioning equipment is to ensure that water in a refrigerating end heat exchanger in the air conditioning equipment cannot be frozen in the cooled process no matter what operation mode and uncontrollable factors exist. However, in the source of significant failure of an actual air conditioner, a considerable proportion of the failure results from heat exchanger icing. The volume of the water phase expands as it changes to ice. Deformation and various cracks are generated inside the heat exchanger in the volume expansion process, so that system refrigerants originally isolated on two independent sides inside the system are communicated with water in series. The traditional heat exchanger is not provided with or is provided with unreasonable alarm signals, and in the running state of communicating water and the refrigerant, the air conditioning equipment has catastrophic failures, including the problems of compressor damage, refrigerant pollution, heat exchanger failure and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protection type heat exchanger prevents frostbite through setting up control by temperature change protection system, can effectively solve under equipment trouble or the outage condition, the heat exchanger temperature crosses the problem of freezing excessively.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

an anti-freezing protection type heat exchanger comprises an outer shell; the inner shell is arranged inside the outer shell at intervals; a heat exchange member disposed inside the inner case; the temperature control protection system is arranged in the outer shell; temperature control protection system includes temperature probe and temperature controller, temperature probe set up in interior casing with between the heat transfer part, and with the temperature controller electricity is connected, temperature control protection system still includes phase change material, interval between shell body and the interior casing is for pressing from both sides the jacket layer, phase change material fill in press from both sides the jacket in situ, can adjust the temperature in the heat exchanger through temperature control protection system, use the temperature controller under general condition and can avoid the problem that the temperature is low excessively, under extreme condition, when unable using the temperature controller, absorb excessive cold volume in the heat exchanger through the phase change material of packing outside pressing from both sides the jacket layer, avoid the pipeline in the heat exchanger to freeze, cause the unable problem that uses of heat exchanger of fracture.

Preferably, heat transfer part includes inhalant canal, inhalant canal along length direction evenly distributed in inside the interior casing, inhalant canal's the temperature of intaking in the messenger's inhalant canal drops with the outside heat exchange.

Furthermore, the fixed tube sheet that is equipped with in both ends of interior casing, evenly distributed has the fixed orifices on the tube sheet, the tip joint of inlet channel is in the fixed orifices, through the fixed inlet channel of fixed orifices, provide the holding power to inlet channel, improved heat exchanger's stability.

In order to seal the heat exchanger, a front end cover and a rear end cover are arranged at two ends of the outer shell.

Furthermore, a water inlet and a water outlet are formed in the front end cover and communicated with the water inlet channel, and inlet water flows into the water inlet channel from the water inlet and is discharged from the water outlet.

Furthermore, a refrigerant inlet and a refrigerant outlet extending to the outside of the outer shell are formed in the inner wall of the inner shell, low-temperature water is generated by adding the refrigerant, and the adding amount of the refrigerant can be selected according to the requirements of personnel.

Further, still be equipped with on the interior shell body inner wall and extend to the outside gas port and the mouth of a river of shell body, the gas port can carry out the pressure release to heat exchanger inside, and the mouth of a river can let in or release the refrigerated water and carry out the heat transfer.

Preferably, the front end cover is provided with a refrigerant inlet or a refrigerant outlet, the rear end cover is provided with a refrigerant outlet or a refrigerant inlet, the refrigerant outlet and the refrigerant inlet are communicated with the inside of the inner shell, the refrigerant is added to generate low-temperature water, and the adding amount of the refrigerant can be selected according to the requirements of personnel.

Preferably, the phase change material is an organic phase change material; or the phase change material is an inorganic phase change material, and a composite phase change material and the like which also have the function of absorbing or releasing energy can be selected.

Compared with the prior art, the utility model has the advantages that:

through setting up control by temperature change protection system, can carry out real-time supervision to the inside temperature of heat exchanger, adjust when the temperature is crossed lowly to phase change material makes the heat exchanger still can avoid the temperature to cross lowly under the extreme condition and causes the cracked problem of pipeline, influences the use of heat exchanger.

Drawings

Fig. 1 is a schematic view of a main structure of a heat exchanger according to the present invention;

fig. 2 is a schematic structural view of a second embodiment of the present invention;

in the figure:

1. a rear end cap; 2. an outer housing; 3. a water gap; 4. a water inlet channel; 5. an inner housing; 6. a gas port; 7. a water inlet; 8. a tube sheet; 9. a front end cover; 10. a refrigerant inlet and outlet; 11. a water outlet; 12. a jacket layer; 13. A phase change material; 14. a fixing hole; 15. a refrigerant outlet.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

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; may be mechanically coupled, may be electrically coupled or may be in communication with each other; 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.

Referring to fig. 1, a first embodiment of an anti-freezing protection type heat exchanger of the present invention comprises an outer shell 2, an inner shell 5 and a temperature control protection system are disposed at an interval in the outer shell 2, a gap layer between the outer shell 2 and the inner shell 5 is a jacket layer 12, a heat exchange component is disposed inside the inner shell 5, the temperature control protection system comprises a temperature probe disposed between the inner shell 5 and the heat exchange component, and electrically connected to a temperature controller, which can monitor the temperature inside the heat exchanger in real time, when the temperature inside the heat exchanger is too low, a signal can be fed back to the temperature controller, the temperature controller can adjust the temperature, for example, reduce the input amount of refrigerant, increase the water intake amount, etc., to moderate the too low temperature environment inside the heat exchanger, the temperature control protection system further comprises a phase change material 13, the phase change material 13 is filled in the jacket layer 12, the phase change temperature of the phase change material, the required phase change temperature is determined by the pressure in the heat exchanger, and the phase change material 13 can be selected from organic phase change materials, inorganic phase change materials or composite phase change materials and the like which can absorb or release energy through self phase change. After the phase change temperature of the phase change material 13 is set, when a temperature probe fails, or under the extreme conditions of temperature controller failure and power failure, the water temperature in the heat exchanger operates at a lower temperature, but the water temperature cannot be adjusted through the temperature controller, and the phase change material 13 arranged in the jacket layer 12 can absorb the cold energy in the heat exchange component through phase change so as to avoid the problem of pipeline freezing.

Referring to fig. 1, heat exchange unit includes inhalant canal 4, inhalant canal 4 along journey degree direction evenly distributed in interior casing 5, inhalant canal 4's quantity is confirmed by personnel according to self needs, the fixed both ends that set up including casing 5 of tube sheet 8 are equipped with the fixed orifices 14 corresponding with inhalant canal 4 on tube sheet 8, inhalant canal 4's tip joint is on tube sheet 8's fixed orifices 14, can support inhalant canal 4 through tube sheet 8, the stability of heat exchanger has been increased. Still be equipped with front end housing 9 and rear end cap 1 at 2 both ends of shell body, be equipped with water inlet 7 and delivery port 11 on front end housing 9, water inlet 7 and delivery port 11 and inhalant canal 4 intercommunication, it imports and exports 10, gas port 6 and mouth of a river 3 to be equipped with the refrigerant that extends to the shell body 2 outside on the inner wall of inner casing 5, gas port 6 carries out the pressure release, avoid the heat exchanger internal pressure too big or undersize, the refrigerant is imported and exported 10 from the refrigerant and is got into in the heat exchanger, carry out the heat exchange with the intake in the inhalant canal 4, intake in the cooling heat exchanger, the temperature step-down that makes the play water can use.

Different from the above embodiments, the structural design of the second embodiment is changed, referring to fig. 2, a front end cover 9 and a rear end cover 1 are arranged at two ends of an outer shell 2, a refrigerant inlet is arranged on the front end cover 9, a refrigerant outlet 15 is arranged on the rear end cover 1, or the refrigerant inlet is arranged on the rear end cover 1, the refrigerant outlet 15 is arranged on the front end cover 9, both the refrigerant inlet and the refrigerant outlet 15 are communicated with the inside of an inner shell 5, and an air port 6 and a water port 3 extending to the outside of the outer shell 2 are arranged on the inner wall of the inner shell 5.

The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. The utility model provides an anti-freeze protection type heat exchanger which characterized in that: comprises that

An outer housing;

the inner shell is arranged inside the outer shell at intervals;

a heat exchange member disposed inside the inner case;

the temperature control protection system is arranged in the outer shell;

wherein, control by temperature change protection system includes temperature probe and temperature controller, temperature probe set up in interior casing with between the heat transfer part, and with the temperature controller electricity is connected, control by temperature change protection system still includes phase change material, the interval between shell body and the interior casing is the jacket layer, phase change material fill in the jacket layer.

2. The heat exchanger of claim 1, wherein: the heat exchange component comprises a water inlet channel, and the water inlet channel is uniformly distributed in the inner shell along the length direction.

3. The heat exchanger of claim 2, wherein: the pipe plates are fixedly arranged at the two ends of the inner shell, fixing holes are uniformly distributed in the pipe plates, and the end parts of the water inlet channels are clamped in the fixing holes.

4. The heat exchanger of claim 1, wherein: the heat exchange component comprises a water inlet channel, and a front end cover and a rear end cover are arranged at two ends of the outer shell.

5. The heat exchanger of claim 4, wherein: the front end cover is provided with a water inlet and a water outlet, and the water inlet and the water outlet are communicated with the water inlet channel.

6. The heat exchanger of claim 5, wherein: and a refrigerant inlet and a refrigerant outlet extending to the outside of the outer shell are formed in the inner wall of the inner shell.

7. The heat exchanger of claim 6, wherein: and the inner wall of the inner shell is also provided with a gas port and a water port which extend to the outside of the outer shell.

8. The heat exchanger of claim 4, wherein: the front end cover is provided with a refrigerant inlet or a refrigerant outlet, the rear end cover is provided with a refrigerant outlet or a refrigerant inlet, and the refrigerant outlet and the refrigerant inlet are communicated with the inside of the inner shell.

9. The heat exchanger of claim 1, wherein: the phase-change material is an organic phase-change material; or the phase change material is an inorganic phase change material.