CN219036270U - Refrigerant storage tank and refrigeration equipment - Google Patents

Abstract

The utility model provides a refrigerant storage tank and refrigeration equipment, wherein the refrigerant storage tank comprises a storage tank body for storing refrigerant, a cooling tube, a heat insulation layer, an exhaust valve and a vortex tube, wherein the cooling tube is arranged at the outer wall of the storage tank body, the cooling tube is arranged between the storage tank body and the heat insulation layer, a better cold insulation effect is achieved by improving the cross section of the cooling tube, the storage tank body is provided with an exhaust port, the vortex tube is provided with an inlet, a cold end outlet and a hot end outlet, the inlet end of the exhaust valve is connected with the exhaust port, the outlet end of the exhaust valve is connected with the inlet of the vortex tube, and the cold end outlet of the vortex tube is communicated with the cooling tube when the pressure born by the exhaust valve is larger than or equal to a preset pressure value. The refrigerant storage tank and the refrigeration equipment provided by the utility model have the characteristics of simple structure, no power consumption of the non-movable equipment, easy realization of the process, safety, reliability and the like, and can reduce the economic loss caused by evaporation and discharge in the process of storing the refrigerant.

Description

Refrigerant storage tank and refrigeration equipment

Technical Field

The utility model belongs to the technical field of refrigeration air conditioners, and particularly relates to a refrigerant storage tank and refrigeration equipment.

Background

Since the boiling temperature of the refrigerant is typically lower than the external environment, it is desirable to insulate the refrigerant storage tank to reduce the amount of heat lost to the tank from the external environment to reduce the evaporative loss of refrigerant. The prior heat insulation measures mainly adopt passive heat protection, namely, the heat insulation layer is coated on the outer surface of the storage tank to reduce the heat entering the storage tank from the outside, but a part of heat still inevitably enters the tank to cause the evaporation of the refrigerant.

Vapor generated by evaporation of low-temperature refrigerant in the storage tank continuously rises the pressure in the tank, and when the pressure in the tank reaches a threshold value set by the safety valve of the storage tank, the safety valve is opened to discharge part of refrigerant vapor, so that the pressure in the tank is reduced to be maintained in a safety range. The discharge of the refrigerant vapor causes waste of the refrigerant on the one hand and also causes adverse effects on the environment on the other hand, causing ozone layer destruction and greenhouse effect.

Disclosure of Invention

The embodiment of the utility model aims to provide a refrigerant storage tank and refrigeration equipment, which are used for solving the technical problems of refrigerant waste and adverse effect on environment caused by refrigerant steam discharge in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a refrigerant storage tank, be in including the storage tank body that is used for storing the refrigerant, setting cooling tube, insulating layer, discharge valve and the vortex tube of storage tank body outer wall department, the cooling tube set up in the storage tank body with between the insulating layer, the storage tank body has the gas vent, the vortex tube has entry, cold junction export and hot junction export, discharge valve's entry end connect in the gas vent, discharge valve's exit end connect in the entry of vortex tube, just discharge valve receives pressure and open when being greater than or equal to predetermined pressure value, the cold junction export of vortex tube with the cooling tube intercommunication.

Optionally, the cooling tube is spirally or serpentine around the outer circumference of the tank body.

Optionally, the cross section of the cooling pipe is trapezoid, and the bottom side of the trapezoid is in contact with the storage tank body; or the cross section of the cooling pipe is rectangular, and the long side of the rectangle is in contact with the storage tank body; alternatively, the cross section of the cooling pipe is triangular.

Optionally, one side of the cooling pipe facing the storage tank body is tightly attached to the outer wall of the storage tank body, and one side of the cooling pipe facing the heat insulation layer is tightly attached to or spaced from the heat insulation layer.

Optionally, a pipe groove is formed in the inner wall of the heat insulation layer, and the cooling pipe is embedded in the pipe groove.

Optionally, the thermal insulation layer comprises a thermal insulation layer and a heat reflection layer, and the thermal insulation layer, the heat reflection layer and the storage tank body are sequentially arranged from outside to inside.

Optionally, the exhaust valve is a floating ball type exhaust valve or a float type exhaust valve.

Optionally, the ratio of tube length to inner diameter of the vortex tube is:

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wherein L is the tube length of the vortex tube, D is the inner diameter of the vortex tube, and P _i For the inlet gas pressure, P, of the vortex tube _o For the predetermined pressure value, F is a function of the vortex tube.

Optionally, the vortex tube has a tube length to inside diameter ratio of 8 to 20.

The utility model also provides refrigeration equipment comprising the refrigerant storage tank.

The refrigerant storage tank and the refrigeration equipment provided by the utility model have the beneficial effects that: compared with the prior art, the refrigerant storage tank comprises a storage tank body, a cooling tube, a heat insulation layer, an exhaust valve and a vortex tube, wherein the heat insulation layer is arranged on the periphery of the storage tank body, so that heat exchange between the refrigerant in the storage tank body and the outside is reduced, the exhaust valve is connected with an exhaust port of the storage tank body and an inlet of the vortex tube, a cold end outlet of the vortex tube is communicated with the cooling tube, and the cooling tube is arranged on the outer wall of the storage tank body. Like this, when the refrigerant in the storage tank body evaporates constantly and leads to the pressure in the storage tank body to increase to predetermined pressure value, discharge valve opens, makes the refrigerant gas in the storage tank body get into in the vortex tube, then the cold junction of vortex tube produces low temperature gas to in the cooling tube to can play simultaneously the heat that the internal refrigerant of cooling storage tank and absorption external environment leaked into the storage tank body, thereby reach refrigerant steam cold volume and recycle, reduce refrigerant evaporation loss, reduce the purpose to the adverse effect of environment. The refrigerant storage tank provided by the utility model has the characteristics of simple structure, no power consumption of passive equipment, easy realization of process, safety, reliability and the like, and can reduce economic loss caused by evaporation and discharge in the process of storing the refrigerant.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a refrigerant tank according to an embodiment of the present utility model (a heat insulating layer is not shown);

fig. 2 is a schematic diagram of a refrigerant storage tank according to an embodiment of the present utility model;

FIG. 3 is a side view of a portion of a refrigerant tank structure (insulation not shown) provided in an embodiment of the present utility model;

fig. 4 is a cross-sectional view of a first refrigerant reservoir provided in an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

fig. 6 is a cross-sectional view of a second refrigerant reservoir provided in an embodiment of the present utility model;

fig. 7 is a partial enlarged view at B in fig. 6.

Wherein, each reference sign in the figure:

11-a tank body; 111-exhaust port; 12-cooling pipes; 13-a heat insulation layer; 131-a heat reflective layer; 132-an insulating layer; 2-an exhaust valve; 3-vortex tube; 31-inlet; 32-a cold end outlet; 33-hot end outlet; 4-pressure valve.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The refrigerant storage tank provided by the embodiment of the present utility model will now be described.

Referring to fig. 1 to 3, the refrigerant storage tank includes a storage tank body 11, a cooling pipe 12, a heat insulating layer 13, an exhaust valve 2, and a vortex tube 3. The storage tank body 11 has an inner cavity for accommodating the refrigerant, and the outer periphery of the storage tank body 11 is provided with a heat insulating layer 13, and the heat insulating layer 13 can reduce heat exchange between the storage tank body 11 and the outside, thereby reducing evaporation loss of the refrigerant.

The outer wall department of storage tank body 11 is provided with cooling tube 12, and cooling tube 12 is used for cooling down the refrigerant in storage tank body 11, the storage tank body 11, can also absorb external environment's heat leakage, further reduces the evaporation loss of refrigerant. Specifically, the cooling pipe 12 is disposed between the heat insulating layer 13 and the tank body 11, so that the heat insulating layer 13 can also cool the cooling pipe 12, thereby preventing the temperature of the fluid in the cooling pipe 12 from rising too fast.

Specifically, the vortex tube 3 has three inlets and outlets, namely an inlet 31, a cold end outlet 32 and a hot end outlet 33, and the exhaust valve 2 is normally closed, and the exhaust valve 2 is opened only when the pressure applied to the exhaust valve 2 is greater than or equal to a predetermined pressure value. The storage tank body 11 is provided with an exhaust port 111, the inlet end of the exhaust valve 2 is communicated with the exhaust port 111 of the storage tank body 11, the outlet end of the exhaust valve 2 is communicated with the inlet 31 of the vortex tube 3, and the cold end outlet 32 of the vortex tube 3 is communicated with the cooling tube 12. In this way, when the air pressure value in the tank body 11 is equal to or greater than the predetermined pressure value, the air release valve 2 is opened, the refrigerant vapor enters the vortex tube 3 through the air release valve 2, and the vortex tube 3 can divide the refrigerant vapor into two cold and hot air flows, and the cold end outlet 32 and the hot end outlet 33 flow out respectively. Wherein, the cold end outlet 32 of the vortex tube 3 is communicated with the cooling tube 12, so that cold air flows to the cooling tube 12 through the cold end outlet 32 to cool the storage tank body 11 and the refrigerant therein.

The refrigerant storage tank in the above embodiment includes a storage tank body 11, a cooling tube 12, a heat insulation layer 13, an exhaust valve 2 and a vortex tube 3, the heat insulation layer 13 is disposed on the periphery of the storage tank body 11, the refrigerant in the storage tank body 11 is reduced to exchange heat with the outside, the exhaust valve 2 is connected with an exhaust port 111 of the storage tank body 11 and an inlet 31 of the vortex tube 3, a cold end outlet 32 of the vortex tube 3 is communicated with the cooling tube 12, and the cooling tube 12 is disposed on the outer wall of the storage tank body 11. Like this, when the refrigerant in the storage tank body 11 evaporates constantly and leads to the pressure in the storage tank body 11 to increase to predetermined pressure value, discharge valve 2 opens, makes the refrigerant gas in the storage tank body 11 get into in the vortex tube 3, then the cold junction of vortex tube 3 produces low temperature gas to cooling tube 12 in to can play simultaneously cooling the interior refrigerant of storage tank body 11 and absorb the heat that external environment leaks into in the storage tank body 11, thereby reach refrigerant steam cold volume and recycle, reduce refrigerant evaporation loss, reduce the purpose to the adverse effect of environment. The refrigerant storage tank provided by the utility model has the characteristics of simple structure, no power consumption of passive equipment, easy realization of process, safety, reliability and the like, and can reduce economic loss caused by evaporation and discharge in the process of storing the refrigerant.

In one embodiment of the present utility model, referring to fig. 1 to 3, the cooling tube 12 is spirally wound around the outer periphery of the tank body 11, and the spiral cooling tube 12 can fully utilize the outer surface of the tank body 11 as much as possible, so that the outer surface of the tank body 11 is covered by the cooling tube 12 as much as possible, and the cooling effect of the cooling tube 12 is improved. In other embodiments, the cooling tube 12 may also be disposed in a serpentine shape, such as the cooling tube 12 extends along the axial direction of the tank body 11 and bends in a serpentine shape at the upper and lower ends of the tank body 11, or the cooling tube 12 extends along the circumferential direction of the tank body 11 and bends in a serpentine shape somewhere along the circumferential direction of the tank body 11. The serpentine cooling tube 12 can also make full use of the outer surface of the tank body 11, so that the outer surface of the tank body 11 is covered by the cooling tube 12 as much as possible, and the cooling effect of the cooling tube 12 is improved.

In one embodiment of the present utility model, referring to fig. 1, one end of the cooling tube 12 is communicated with the cold end outlet 32 of the vortex tube 3, the other end of the cooling tube 12 is connected with the pressure valve 4, the pressure valve 4 is in a closed state in a normal state, and the pressure valve 4 automatically opens the exhaust after reaching a preset pressure value. In this way, the air pressure in the cooling tube 12 can be kept at a pressure not exceeding the preset pressure value, and the air pressure in the cooling tube 12 is prevented from being excessively high, and the cold air flow flowing out of the cold end outlet 32 can be kept in the cooling tube 12 without flowing out of the outlet of the cooling tube 12 when the air pressure in the cooling tube 12 does not exceed the preset pressure value.

In one embodiment of the present utility model, referring to fig. 4 to 7, the cross section of the cooling tube 12 is a trapezoid, the bottom side of the trapezoid is in contact with the storage tank body 11, the length of the bottom side of the trapezoid is greater than that of the top side of the trapezoid, and the bottom side of the trapezoid is in contact with the storage tank body 11, so that the contact area between the cooling tube 12 and the storage tank body 11 is relatively large, which is more beneficial to the cold transfer between the cooling tube 12 and the storage tank body 11.

In other embodiments, the cooling tube 12 is rectangular in cross section, with the long sides of the rectangle being disposed in contact with the reservoir body 11. The rectangle has long limit and minor face, and the long limit and the storage tank body 11 contact setting of rectangle can make the area of contact of cooling tube 12 and storage tank body 11 relatively great, more is favorable to the cold transmission between cooling tube 12 and the storage tank body 11.

In a further embodiment, the cooling tube 12 has a triangular cross section, one side of which is arranged in contact with the tank body 11. The cross section of the cooling tube 12 may also be semi-circular or the like. The description of the cross-section of the cooling tube 12 in the above embodiments is not limited to the specific shape of the cooling tube 12.

Alternatively, the cooling pipe 12 may be an aluminum alloy pipe, which has a light weight and a large thermal conductivity, and may rapidly transfer cold to the tank body 11. The cooling tube 12 may be made of stainless steel or the like.

In one embodiment of the present utility model, referring to fig. 4 and 5, a side of the cooling tube 12 facing the storage tank body 11 is closely attached to an outer wall of the storage tank body 11, so that heat transfer between the cooling tube 12 and the storage tank body 11 is facilitated, and a side of the cooling tube 12 facing the heat insulation layer 13 may be closely attached to the heat insulation layer 13 or may be spaced from the heat insulation layer 13.

Optionally, referring to fig. 6 and 7, a pipe groove is formed in an inner wall of the heat insulation layer 13, and the cooling pipe 12 is embedded in the pipe groove, so that an air gap between the heat insulation layer 13 and the cooling pipe 12 is reduced, natural convection heat transfer of air is weakened, and cooling of the cooling pipe 12 is facilitated.

Wherein, the heat insulation layer 13 can be coated on the outer circumferences of the storage tank body 11 and the cooling pipe 12 by spraying or wrapping. When the thermal insulation layer 13 is sprayed on the outer circumferences of the storage tank body 11 and the cooling pipe 12, the shape of the thermal insulation layer 13 formed by spraying can be the same as the outline structure formed by the storage tank body 11 and the cooling pipe 12, namely, the thermal insulation layer 13 is thin-walled. When the heat insulating layer 13 is wrapped around the outer periphery of the tank body 11 and the cooling pipe 12, the heat insulating layer 13 may be thin-walled, or may be shaped as shown in fig. 6 and 7.

In one embodiment of the present utility model, referring to fig. 6 and 7, the insulating layer 13 has a single layer structure, and the insulating layer 13 may be a polyurethane foam insulating layer, or may be an insulating layer made of other materials, and specific materials of the insulating layer 13 are not limited herein.

In one embodiment of the present utility model, referring to fig. 4 and 5, the heat insulation layer 13 includes a heat insulation layer 132 and a heat reflection layer 131, and the heat insulation layer 132, the heat reflection layer 131 and the tank body 11 are sequentially disposed from outside to inside. The reflectivity of the heat reflection layer 131 is higher, the stronger the heat reflection capability is, the better the heat preservation and cold insulation effect is, the heat transfer between the heat insulation layer 132 and the inside and the outside of the heat reflection layer 131 can be reduced, and the heat preservation and cold insulation effect of the heat insulation layer 13 is better through the combination of the heat insulation layer 132 and the heat reflection layer 131. The heat insulating layer 132 may be a double-sided aluminized polyester film layer, and the heat reflecting layer 131 may be an aluminum foil reflecting screen.

Alternatively, the tank body 11 may be made of stainless steel or an aluminum alloy or the like. The vortex tube 3 may be made of stainless steel or the like.

Alternatively, the exhaust valve 2 is a floating ball type exhaust valve or a float type exhaust valve, and the above is merely an example of the type of the exhaust valve 2, and is not a specific limitation on the type of the exhaust valve 2.

In one embodiment of the present utility model, referring to fig. 1, after the refrigerant vapor enters the vortex tube 3, the refrigerant vapor flows to one side in a high-speed rotation manner, during the movement of the air flow, the air in the outer layer generates heat, and conversely, the air in the inner layer becomes cold, and when the air moves to one end, the cold air flows back along the center of the vortex to form a cold air flow, the cold air flow flows out from the cold end outlet 32, the air in the outer layer forms a hot air flow, and the hot air flow flows out from the hot end outlet 33. The hot end outlet 33 may be exposed to air or may be connected to a device requiring heating.

In one embodiment of the utility model, the tube length to inside diameter ratio of the vortex tube 3 is:

wherein L is the tube length of the vortex tube 3, and D is the inner diameter of the vortex tube 3. P (P) _i For the inlet 31 gas pressure, P, of the vortex tube 3 _o At a predetermined pressure value, F is a function of the vortex tube 3. In this embodiment, P _i I.e. the predetermined pressure value of the exhaust valve 2. When the tube length and the inner diameter of the vortex tube 3 are longer than those of the vortex tube, the efficiency of refrigerating and heating is higher. The ratio of the tube length L to the inner diameter D of the vortex tube 3 is 8 to 20, such as 10, 12, 14, 18, etc., so that the efficiency of cooling and heating entering the vortex tube 3 can be higher, and the utilization rate of the refrigerant steam can be improved.

The utility model also provides refrigeration equipment, which comprises the refrigerant storage tank in any embodiment, and can also comprise structures such as a compressor, and the like, wherein the refrigerant storage tank provides refrigerant for the compressor. The refrigerating device may be a device capable of refrigerating such as an air conditioner or a refrigerator.

According to the refrigeration equipment provided by the utility model, the refrigerant storage tank is adopted, when the pressure in the storage tank body 11 is increased to a preset pressure value due to continuous evaporation of the refrigerant in the storage tank body 11, the exhaust valve 2 is opened, so that the refrigerant gas in the storage tank body 11 enters the vortex tube 3, and then the cold end of the vortex tube 3 generates low-temperature gas into the cooling tube 12, so that the purposes of cooling the refrigerant in the storage tank body 11 and absorbing heat leaked into the storage tank body 11 from the external environment can be achieved, the reutilization of the refrigerant steam cold is achieved, the evaporation loss of the refrigerant is reduced, and the adverse effect on the environment is reduced. The refrigerant storage tank provided by the utility model has the characteristics of simple structure, no power consumption of passive equipment, easy realization of process, safety, reliability and the like, and can reduce economic loss caused by evaporation and discharge in the process of storing the refrigerant.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A refrigerant storage tank, characterized by: including the storage tank body that is used for storing the refrigerant, set up cooling tube, insulating layer, discharge valve and the vortex tube of storage tank body outer wall department, the cooling tube set up in the storage tank body with between the insulating layer, the storage tank body has the gas vent, the vortex tube has entry, cold junction export and hot junction export, discharge valve's entry end connect in the gas vent, discharge valve's exit end connect in the entry of vortex tube, just discharge valve receives when pressure is greater than or equal to predetermined pressure value and open, the cold junction export of vortex tube with the cooling tube intercommunication.

2. The refrigerant storage tank as set forth in claim 1, wherein: the cooling pipe is spirally or snakelike and surrounds the periphery of the storage tank body.

3. The refrigerant storage tank as set forth in claim 1, wherein: the cross section of the cooling pipe is trapezoid, and the bottom edge of the trapezoid is in contact with the storage tank body; or the cross section of the cooling pipe is rectangular, and the long side of the rectangle is in contact with the storage tank body; alternatively, the cross section of the cooling pipe is triangular.

4. The refrigerant storage tank as set forth in claim 3, wherein: one side of the cooling pipe facing the storage tank body is tightly attached to the outer wall of the storage tank body, and one side of the cooling pipe facing the heat insulation layer is tightly attached to or arranged at intervals with the heat insulation layer.

5. The refrigerant storage tank as set forth in claim 4, wherein: the inner wall of the heat insulation layer is provided with a pipe groove, and the cooling pipe is embedded in the pipe groove.

6. The refrigerant storage tank as set forth in claim 1, wherein: the heat insulation layer comprises a heat insulation layer and a heat reflection layer, and the heat insulation layer, the heat reflection layer and the storage tank body are sequentially arranged from outside to inside.

7. The refrigerant storage tank as set forth in claim 1, wherein: the exhaust valve is a floating ball type exhaust valve or a float type exhaust valve.

8. The refrigerant storage tank as defined in any one of claims 1-7, wherein: the ratio of the tube length to the inner diameter of the vortex tube is as follows:

wherein L is the tube length of the vortex tube, D is the inner diameter of the vortex tube, and P _i For the inlet gas pressure, P, of the vortex tube _o For the predetermined pressure value, F is a function of the vortex tube.

9. The refrigerant storage tank as set forth in claim 8, wherein: the tube length to inside diameter ratio of the vortex tube is 8 to 20.

10. Refrigeration plant, its characterized in that: a refrigerant storage tank comprising any one of claims 1-9.

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