CN214892798U

CN214892798U - Heat preservation structure of middle and low temperature chemical industry equipment

Info

Publication number: CN214892798U
Application number: CN202121381262.9U
Authority: CN
Inventors: 王高君; 朱晓辉
Original assignee: Xinhuasheng Energy Saving Technology Co ltd
Current assignee: Xinhuasheng Energy Saving Technology Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-11-26
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a heat preservation structure of medium and low temperature chemical equipment, which comprises an equipment layer and a heat preservation layer coated outside the equipment layer, wherein the heat preservation layer is a double-layer structure comprising an outer heat preservation layer and an inner heat preservation layer, and the inner heat preservation layer is positioned between the outer heat preservation layer and the equipment layer; the inner heat-insulating layer is internally provided with a spiral medium guide pipe, and the medium guide pipe uniformly surrounds the outer side of the equipment layer. The utility model discloses a well low temperature chemical industry equipment's insulation construction, through the heat preservation that adopts double-deck solid-liquid separation, cooperation spiral helicine medium pipe, very big promotion chemical industry equipment's heat preservation ability, simultaneously because its mechanism is succinct, simple to operate, the cost keeps warm cheaper than the vacuum.

Description

Heat preservation structure of middle and low temperature chemical industry equipment

Technical Field

The utility model relates to a chemical industry equipment heat preservation technical field especially relates to a heat preservation structure of well low temperature chemical industry equipment.

Background

The large-scale medium-low temperature chemical equipment has various types, such as a low-temperature cold box, a low-temperature normal-pressure storage tank, a low-temperature refrigerator, medium-temperature drying equipment, medium-temperature heat exchange equipment and the like. These devices typically have diameters or heights of several tens of meters, storage volumes ranging from several thousand cubic meters to several hundred thousand cubic meters, and operating temperatures of-165 ℃ or even lower during operation of the device. For example, the working temperature of the liquid nitrogen storage tank reaches-196 ℃. Because the working temperature of the equipment and the ambient temperature have huge temperature difference, and the large-scale chemical equipment has huge volume, if the cold insulation effect is not good, a large amount of cold energy is leaked, so that the energy consumption of the equipment is greatly increased, the operating cost is sharply increased, and great negative effects are brought to the economic benefit.

The heat insulation structure of the existing medium-low temperature chemical equipment is generally characterized in that a heat insulation layer is arranged outside the equipment, the heat insulation layer is vacuum or filled with materials with heat insulation property, but for large-scale equipment, the heat insulation effect of the vacuum layer is optimal, once the equipment vibrates or collides to cause cracking of the heat insulation layer, the vacuum layer fails and does not have the heat insulation effect any more, in order to avoid failure of the vacuum layer, the requirements on the adopted materials, the installation process and the like are higher, and the cost is increased; generally, a mode of filling a heat insulation material is adopted, the heat insulation effect of the heat insulation material hardly meets the requirement of low-temperature equipment, the heat insulation efficiency is low, and a thermal stratification phenomenon and a water seepage corrosion phenomenon are easily generated when sealing measures are not good, so that certain potential safety hazards exist; meanwhile, the outer surfaces of most of devices are not in the completely regular shape of fiber, so that the heat insulation construction difficulty of the special-shaped devices is higher.

Therefore, in combination with the above-mentioned technical problems, there is a need to provide a new technical solution.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a better and receive the external environment influence less, the well low temperature chemical industry equipment's of being convenient for construction insulation structure that keeps warm the effect.

In order to solve the technical problem, the utility model provides a well low temperature chemical industry equipment's insulation construction, concrete technical scheme is as follows:

the heat insulation structure of the medium-low temperature chemical equipment comprises an equipment layer and a heat insulation layer coated on the outer side of the equipment layer, wherein the heat insulation layer is of a double-layer structure comprising an outer heat insulation layer and an inner heat insulation layer, and the inner heat insulation layer is positioned between the outer heat insulation layer and the equipment layer; the inner heat-insulating layer is internally provided with a spiral medium guide pipe, and the medium guide pipe uniformly surrounds the outer side of the equipment layer.

Preferably, the inner and outer sides of the inner insulating layer are sealed to separate the outer insulating layer and the equipment layer.

Preferably, the inner insulating layer is filled with heat-conducting liquid, and the medium conduit is soaked in the heat-conducting liquid.

Preferably, the feed end and the discharge end of the medium conduit penetrate through the outer heat insulation layer and extend to the outside of the heat insulation layer, the feed end and the discharge end of the medium conduit are both provided with one-way valves, a temperature sensor is further arranged in the medium conduit, and the one-way valves are electrically connected with the temperature sensor.

Preferably, a pressure sensor is arranged in the inner heat-insulating layer, an alarm is arranged on the outer side of the heat-insulating layer, and the alarm is electrically connected with the pressure sensor.

Preferably, the outer insulating layer is a soft solid waterproof insulating material, in particular a mesoporous silica vesicle composite paste waterproof insulating material.

The utility model discloses a well low temperature chemical industry equipment's insulation construction has following beneficial effect:

(1) the heat preservation structure of the middle and low temperature chemical equipment of the utility model greatly improves the heat preservation capability of the chemical equipment by adopting the double-layer solid-liquid separation heat preservation layer and matching with the spiral medium conduit, and simultaneously, the cost is lower than that of vacuum heat preservation because the mechanism is simple and convenient to install;

(2) the utility model discloses a heat preservation structure of well low temperature chemical industry equipment monitors the heat preservation through setting up temperature sensor and pressure sensor, can in time adjust the temperature in order to guarantee the heat preservation effect, can also in time indicate operating personnel to overhaul heat preservation structure, reduce the potential safety hazard;

(3) the utility model discloses a well low temperature chemical industry equipment's insulation construction through preferred outer flexible waterproof insulation material, belongs to the continuous heat preservation coating, has excellent buffering thermal-insulated effect promptly, still has fine waterproof performance, has avoided because of the outer condition that ftractures and lead to the infiltration, and the specially adapted abnormal shape equipment's keeps warm and is under construction.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or 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 invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a heat insulation structure of medium and low temperature chemical equipment.

Wherein, 1-a heat-insulating layer; 101-an outer insulating layer; 102-inner insulating layer; 2-a device layer; 3-a medium conduit; 301-a one-way valve; 302-a temperature sensor; 4-a pressure sensor; 5-alarm.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. 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.

Examples

Referring to fig. 1, the heat insulation structure of the medium and low temperature chemical equipment comprises an equipment layer 2 and a heat insulation layer 1 coated on the outer side of the equipment layer 2, wherein the heat insulation layer 1 is a double-layer structure comprising an outer heat insulation layer 101 and an inner heat insulation layer 102, and the inner heat insulation layer 102 is positioned between the outer heat insulation layer 101 and the equipment layer 2; the spiral medium guide pipe 3 is arranged in the inner heat-insulating layer 102, and the medium guide pipe 3 is uniformly surrounded on the outer side of the equipment layer 2 so as to increase the heat conduction area of the medium guide pipe 3 and improve the heat conduction efficiency. The inner and outer sides of the inner insulating layer 102 are sealed to separate the outer insulating layer 101 and the equipment layer 2. The inner insulating layer 102 is filled with heat-conducting liquid, and the medium conduit 3 is soaked in the heat-conducting liquid, so that the heat transfer efficiency is further improved.

The feed end and the discharge end of the medium conduit 3 penetrate through the outer heat insulation layer 101 to extend to the outside of the heat insulation layer 1, the feed end and the discharge end of the medium conduit 3 are both provided with one-way valves 301, a temperature sensor 302 is further arranged in the medium conduit 3, and the one-way valves 301 are electrically connected with the temperature sensor 302. When the temperature of the refrigerant in the medium conduit 3 changes and cannot play a role of temperature control, the temperature sensor 302 controls the one-way valve 301 to be opened, and the refrigerant is input into the medium conduit 3 again, so that the temperature of the equipment layer 2 can meet the working requirement of low-temperature chemical equipment.

Be equipped with pressure sensor 4 in the interior heat preservation 102, the 1 outside of heat preservation is equipped with alarm 5, and alarm 5 is connected with pressure sensor 4 electricity, and when heat preservation 1 received very big impact and takes place the damage, the heat conduction liquid in the interior heat preservation 102 can take place to leak to lead to the fact the change of pressure, this change of pressure sensor 4 monitoring and with its feedback to alarm 5 in, can remind operating personnel in time to overhaul.

Outer heat preservation 101 is soft solid waterproof insulation material, specifically is the compound lotion waterproof insulation material of mesoporous silica vesicle, the compound lotion heat preservation material of mesoporous silica vesicle has extremely strong thermal insulation performance and anticorrosive waterproof performance, and because its softness itself and certain elasticity have, not only can play heat retaining effect, can also regard as the buffer layer to use, influence the chemical industry equipment in equipment course 2 when preventing that insulation construction from receiving the collision, also can effectively prevent sealed interior heat preservation 102 lateral wall from taking place to break and the infiltration of outside moisture.

The utility model has the advantages that: the double-layer solid-liquid separation heat insulation layer is adopted and matched with the spiral medium guide pipe, so that the heat insulation capacity of the chemical equipment is greatly improved, and meanwhile, the structure is simple, the installation is convenient, and the cost is lower than that of vacuum heat insulation; the temperature sensor and the pressure sensor are arranged to monitor the heat-insulating layer, so that the temperature can be adjusted in time to ensure the heat-insulating effect, an operator can be prompted to overhaul the heat-insulating structure in time, and potential safety hazards are reduced; through the preferred outer flexible waterproof insulation material, belong to continuous heat preservation coating, have excellent buffering thermal-insulated effect promptly, still have fine waterproof performance, avoided leading to the condition of infiltration because of outer fracture, the heat preservation construction of specially adapted abnormal shape equipment.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications and changes may be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The utility model provides a heat preservation structure of well low temperature chemical industry equipment which characterized in that: the heat-insulating layer comprises an equipment layer (2) and a heat-insulating layer (1) coated on the outer side of the equipment layer (2), wherein the heat-insulating layer (1) is of a double-layer structure comprising an outer heat-insulating layer (101) and an inner heat-insulating layer (102), and the inner heat-insulating layer (102) is positioned between the outer heat-insulating layer (101) and the equipment layer (2); the inner heat-insulating layer (102) is internally provided with a spiral medium guide pipe (3), and the medium guide pipe (3) is uniformly surrounded on the outer side of the equipment layer (2).

2. The insulation structure of the medium and low temperature chemical equipment according to claim 1, characterized in that: the inner side and the outer side of the inner heat-insulating layer (102) are sealed to separate the outer heat-insulating layer (101) and the equipment layer (2).

3. The insulation structure of the medium and low temperature chemical equipment according to claim 2, characterized in that: the inner heat-insulating layer (102) is filled with heat-conducting liquid, and the medium conduit (3) is soaked in the heat-conducting liquid.

4. The insulation structure of the medium and low temperature chemical equipment according to claim 1, characterized in that: the heat-insulation layer is characterized in that the feeding end and the discharging end of the medium guide pipe (3) penetrate through the outer heat-insulation layer (101) to extend to the outside of the heat-insulation layer (1), the feeding end and the discharging end of the medium guide pipe (3) are respectively provided with a one-way valve (301), a temperature sensor (302) is further arranged in the medium guide pipe (3), and the one-way valve (301) is electrically connected with the temperature sensor (302).

5. The insulation structure of the medium and low temperature chemical equipment according to claim 3, characterized in that: a pressure sensor (4) is arranged in the inner heat-insulating layer (102), an alarm (5) is arranged on the outer side of the heat-insulating layer (1), and the alarm (5) is electrically connected with the pressure sensor (4).

6. The insulation structure of the medium and low temperature chemical equipment according to claim 3, characterized in that: the outer insulating layer (101) is a soft solid waterproof insulating material, in particular to a mesoporous silica vesicle compound paste waterproof insulating material.