CN210126230U - Polyurethane raw material constant temperature control system for refrigerator and freezer - Google Patents
Polyurethane raw material constant temperature control system for refrigerator and freezer Download PDFInfo
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- CN210126230U CN210126230U CN201920970399.4U CN201920970399U CN210126230U CN 210126230 U CN210126230 U CN 210126230U CN 201920970399 U CN201920970399 U CN 201920970399U CN 210126230 U CN210126230 U CN 210126230U
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Abstract
The utility model discloses a refrigerator is polyurethane raw materials constant temperature control system for refrigerator-freezer relates to polyurethane foaming technical field. The utility model comprises a raw material tank and a constant temperature unit; the water outlet end of the thermostatic unit is connected with a water pump and a valve through a connecting pipe; one end of the connecting pipe is communicated with the water inlet; the water outlet of the raw material tank is communicated with the water inlet end of the thermostatic unit through a pipeline; the inner top surface of the raw material tank is fixedly connected with an inner tank; a closed cavity is formed between the inner wall of the raw material tank and the inner tank; an isolation cylinder is arranged between the inner wall of the raw material tank and the inner tank. The utility model is provided with the constant temperature unit, and the constant temperature unit is used for controlling the temperature of the heat-conducting medium to regulate the temperature of the raw material; the problems of potential safety hazards and low heating efficiency in the conventional electric heating process are solved; the problems of low heat transfer efficiency and slow temperature response of the existing raw material tank are solved by directly exchanging heat between the inner tank and the heat-conducting medium arranged in the raw material tank.
Description
Technical Field
The utility model belongs to the technical field of the polyurethane foaming, especially, relate to a refrigerator is polyurethane raw materials constant temperature control system for refrigerator-freezer.
Background
The refrigerator is an indispensable electrical appliance for families, a very important process in the production link of the refrigerator is polyurethane foaming, and both a refrigerator body and a door body need to form foam after polyurethane foaming, so that the heat preservation and the supporting effects are achieved. Therefore, the foaming quality of the refrigerator is extremely important, and the temperature of the polyurethane raw material is known to have a large influence on the foaming quality. Generally speaking, the temperature of a polyurethane raw material is controlled by cooling with cold water and heating with electric energy, but the electric energy heating has many defects, firstly, the polyurethane raw material contains flammable and explosive cyclopentane foaming agent, and potential safety hazard exists by heating with electric energy; secondly, the electric energy heating is slow, and the risk of water shortage and dry burning also exists in the secondary electric energy heating.
Meanwhile, the heat transfer efficiency of the existing raw material tank and a heat transfer medium is low, so that the temperature response speed in the raw material tank is slow, and the temperature regulation efficiency is low; therefore, it is very necessary to develop a thermostatic control system for polyurethane raw materials for refrigerators and freezers, which can control the temperature of the polyurethane raw materials more precisely.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a constant temperature control system for polyurethane raw materials for refrigerators and freezers, which is characterized in that a constant temperature unit is arranged, and the constant temperature unit is used for controlling the temperature of a heat-conducting medium to regulate the temperature of the raw materials; the problems of potential safety hazards and low heating efficiency in the conventional electric heating process are solved; the problems of low heat transfer efficiency and slow temperature response of the existing raw material tank are solved by directly exchanging heat between the inner tank and the heat-conducting medium arranged in the raw material tank.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a constant temperature control system for polyurethane raw materials for refrigerators and freezers, which comprises a raw material tank and a constant temperature unit; the raw material tank is communicated with a water inlet and a water outlet; the water outlet end of the constant temperature unit is connected with a water pump and a valve through a connecting pipe; one end of the connecting pipe is communicated with the water inlet; the water outlet is communicated with the water inlet end of the thermostatic unit through a pipeline;
the inner top surface of the raw material tank is fixedly connected with an inner tank; a closed cavity is formed between the inner wall of the raw material tank and the inner tank; an isolation cylinder is arranged between the inner wall of the raw material tank and the inner tank;
the lower end surface of the isolation cylinder is fixedly connected with the inner bottom surface of the raw material tank; an overflow gap is formed between the upper end surface of the isolation cylinder and the inner top surface of the raw material tank.
Further, the water inlet is located in the bottom center of the raw material tank.
Furthermore, a cone is fixedly connected to the inner bottom surface of the raw material tank relative to the water inlet; the vertex of the cone faces the water inlet.
Further, the bottom of the inner tank is of a hemispherical structure; and spiral sheets are arrayed on the peripheral side of the inner tank.
Further, the side wall of the isolation cylinder is of a hollow structure; and a foaming layer or a foaming plate is filled in the side wall of the isolation cylinder.
The utility model discloses following beneficial effect has:
1. the utility model controls the temperature of the heat-conducting medium by using the constant temperature unit, controls the temperature in the raw material tank, and avoids the situation that the raw material tank adopts electric heating, has potential safety hazard and has the risk of dry burning; meanwhile, the thermostat unit has a higher heating effect compared with electric heating.
2. Through set up the inner tank in the head tank, utilize heat-conducting medium directly to carry out the heat exchange with the inner tank, the effectual efficiency that improves the heat transfer improves the response speed of interior raw materials temperature of inner tank, realizes quick adjustment temperature's effect.
3. The utility model discloses a set up the isolation section of thick bamboo between head tank and inner tank, utilize the isolation section of thick bamboo to keep apart the heat-conducting medium through the heat exchange with the heat-conducting medium that just got into in the raw materials, improved and reduced the thermal loss of heat-conducting medium, improved heat utilization efficiency; the temperature of the raw materials in the inner tank can be adjusted more quickly.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a constant temperature control system for polyurethane raw materials for refrigerators and freezers according to the present invention;
FIG. 2 is a schematic view of the construction of a feed tank;
FIG. 3 is a top view of the structure of FIG. 2;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
FIG. 5 is a schematic structural view of the inner vessel;
FIG. 6 is a schematic structural view of a cone;
in the drawings, the components represented by the respective reference numerals are listed below:
1-raw material tank, 2-constant temperature unit, 3-inner tank, 4-isolation cylinder, 5-cone, 101-water inlet, 102-water outlet, 201-water pump, 202-valve, 301-spiral sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements 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.
Referring to fig. 1, the utility model relates to a constant temperature control system for polyurethane raw material for refrigerator and freezer, comprising a raw material tank 1 and a constant temperature unit 2; the raw material tank 1 is communicated with a water inlet 101 and a water outlet 102;
as shown in fig. 2 to 4, the water inlet 101 is located at the center of the bottom of the material tank 1, and the water outlet 102 is located at the bottom of the sidewall of the material tank 1.
The water outlet end of the thermostatic unit 2 is connected with a water pump 201 and a valve 202 through a connecting pipe; one end of the connecting pipe is communicated with the water inlet 101; the water outlet 102 is communicated with the water inlet end of the thermostatic unit 2 through a pipeline;
the inner top surface of the raw material tank 1 is fixedly connected with an inner tank 3; a closed chamber is formed between the inner wall of the raw material tank 1 and the inner tank 3; an isolation cylinder 4 is arranged between the inner wall of the raw material tank 1 and the inner tank 3;
when the device is used, raw materials are loaded into the inner tank 3, and constant-temperature water subjected to heat preservation by the constant-temperature unit 2 enters a closed cavity between the inner wall of the raw material tank 1 and the inner tank 3 under the action of the water pump 201, so that the constant-temperature water directly exchanges heat with the inner tank 3, and the heat exchange efficiency and the response speed of the temperature of the raw materials in the inner tank 3 are improved; the constant temperature water after heat exchange returns to the constant temperature unit 2 through the water outlet 102 and the pipeline;
preferably, as shown in fig. 5, the bottom of the inner tank 3 is of a hemispherical structure, and spiral sheets 301 are arrayed on the peripheral side of the inner tank 3; when the material tank is of a hemispherical structure, constant temperature water entering from the bottom of the material tank 1 can be uniformly distributed along the surface of the hemispherical structure, so that the temperature of each position at the bottom of the inner tank 3 is balanced; the spiral piece 301 enables the rising constant temperature water to rotate upwards along the side wall of the inner tank 3, so that the temperature balance of the side wall of the inner tank 3 is improved, meanwhile, the contact time of the constant temperature water and the inner tank 3 is increased, and the heat exchange efficiency is improved;
as shown in fig. 6, a cone 5 is fixedly connected to the inner bottom surface of the raw material tank 1 at a position opposite to the water inlet 101; the cone 5 is welded on the inner bottom surface of the raw material tank 1 through a connecting rod, and the vertex of the cone 5 faces the water inlet 101; cone 5 plays the effect to equipartition all around to getting into the thermostatted water in head tank 1, avoids the bottom to have the torrent to lead to, and the unbalanced condition of thermostatted water temperature appears, also makes the even 3 lateral walls of inner tank of constant temperature hydroenergy distribute along simultaneously, avoids the 3 lateral walls of inner tank to be heated the uneven condition and appears.
As shown in fig. 4, the lower end surface of the isolation cylinder 4 is fixedly connected with the inner bottom surface of the raw material tank 1; an overflow gap is formed between the upper end surface of the isolation cylinder 4 and the inner top surface of the raw material tank 1.
Preferably, the side wall of the isolation cylinder 4 is of a hollow structure; the side wall of the isolation cylinder 4 is filled with a foaming layer or a foaming plate; after the constant temperature water entering from the bottom of the raw material tank 1 exchanges heat with the inner tank 3, the constant temperature water flows into a gap formed by the side wall of the isolation cylinder 4 and the inner wall of the raw material tank 1 from an overflow gap between the upper end surface of the isolation cylinder 4 and the inner top surface of the raw material tank 1, is pumped out from the water outlet 102 through the water suction pump, and enters the constant temperature unit 2 again through a pipeline; therefore, the situation that the overall temperature is unbalanced and the heat utilization rate is reduced due to the fact that the constant-temperature water with lower temperature is mixed with the constant-temperature water with higher temperature which just enters the raw material tank 1 after heat exchange is avoided, the constant-temperature water with higher temperature can completely exchange heat with the inner tank 3, and the heating efficiency of the raw materials in the inner tank 3 is improved;
the side wall of the isolation cylinder 4 is filled with a foaming layer or a foam board, so that the side wall of the isolation cylinder 4 has a heat preservation effect, the condition that heat transfer is carried out through the side wall of the isolation cylinder 4 is blocked, and the heat utilization rate of the constant-temperature water on the side of the inner tank 3 is further improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A polyurethane raw material constant temperature control system for a refrigerator and an ice chest comprises a raw material tank (1) and a constant temperature unit (2); the raw material tank (1) is communicated with a water inlet (101) and a water outlet (102); the method is characterized in that: the water outlet end of the thermostatic unit (2) is connected with a water pump (201) and a valve (202) through a connecting pipe; one end of the connecting pipe is communicated with the water inlet (101); the water outlet (102) is communicated with the water inlet end of the thermostatic unit (2) through a pipeline;
the inner top surface of the raw material tank (1) is fixedly connected with an inner tank (3); a closed chamber is formed between the inner wall of the raw material tank (1) and the inner tank (3); an isolation cylinder (4) is arranged between the inner wall of the raw material tank (1) and the inner tank (3);
the lower end surface of the isolation cylinder (4) is fixedly connected with the inner bottom surface of the raw material tank (1); an overflow gap is formed between the upper end surface of the isolation cylinder (4) and the inner top surface of the raw material tank (1).
2. A polyurethane material thermostatic control system for refrigerator and freezer as claimed in claim 1 wherein said water inlet (101) is located in the center of the bottom of the material tank (1).
3. The polyurethane raw material constant temperature control system for the refrigerator and the freezer as claimed in claim 1, wherein the inner bottom surface of the raw material tank (1) is fixedly connected with a cone (5) relative to the position of the water inlet (101); the vertex of the cone (5) faces the water inlet (101).
4. The polyurethane material thermostatic control system for refrigerator and freezer as claimed in claim 1, wherein the bottom of said inner tank (3) is a hemispherical structure; the circumferential side of the inner tank (3) is arrayed with spiral sheets (301).
5. The polyurethane material thermostatic control system for refrigerator and freezer as claimed in claim 1, wherein the sidewall of said isolating cylinder (4) is hollow; and a foaming layer or a foaming plate is filled in the side wall of the isolation cylinder (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920970399.4U CN210126230U (en) | 2019-06-26 | 2019-06-26 | Polyurethane raw material constant temperature control system for refrigerator and freezer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920970399.4U CN210126230U (en) | 2019-06-26 | 2019-06-26 | Polyurethane raw material constant temperature control system for refrigerator and freezer |
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| CN210126230U true CN210126230U (en) | 2020-03-06 |
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| CN201920970399.4U Active CN210126230U (en) | 2019-06-26 | 2019-06-26 | Polyurethane raw material constant temperature control system for refrigerator and freezer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181749A (en) * | 2019-06-26 | 2019-08-30 | 长虹美菱股份有限公司 | A kind of refrigerator ice cabinet urethane raw thermostatic control system |
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2019
- 2019-06-26 CN CN201920970399.4U patent/CN210126230U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181749A (en) * | 2019-06-26 | 2019-08-30 | 长虹美菱股份有限公司 | A kind of refrigerator ice cabinet urethane raw thermostatic control system |
| CN110181749B (en) * | 2019-06-26 | 2024-01-30 | 长虹美菱股份有限公司 | Polyurethane raw material constant temperature control system for refrigerator and freezer |
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