CN220017728U - Liquid heating and heat preservation device for drilling - Google Patents
Liquid heating and heat preservation device for drilling Download PDFInfo
- Publication number
- CN220017728U CN220017728U CN202321457460.8U CN202321457460U CN220017728U CN 220017728 U CN220017728 U CN 220017728U CN 202321457460 U CN202321457460 U CN 202321457460U CN 220017728 U CN220017728 U CN 220017728U
- Authority
- CN
- China
- Prior art keywords
- heating
- heat
- drilling fluid
- heat preservation
- storage box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 86
- 238000005553 drilling Methods 0.000 title claims abstract description 79
- 238000004321 preservation Methods 0.000 title claims abstract description 61
- 239000007788 liquid Substances 0.000 title claims abstract description 31
- 239000012530 fluid Substances 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000003756 stirring Methods 0.000 claims abstract description 25
- 239000010410 layer Substances 0.000 claims description 35
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 239000011241 protective layer Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000010425 asbestos Substances 0.000 claims description 5
- 230000001012 protector Effects 0.000 claims description 5
- 229910052895 riebeckite Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 238000012546 transfer Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The utility model provides a liquid heating and heat preservation device for drilling, which comprises a heat preservation storage box, an auxiliary heating component and a plurality of stirring blades, wherein a liquid inlet and a liquid outlet are oppositely arranged on the heat preservation storage box, and the stirring blades are rotatably arranged in the heat preservation storage box; the auxiliary heat assembly comprises a heating box, a hot water pump, an output pipe, a return pipe and a plurality of heat exchange coils, wherein the heat exchange coils are arranged in the heat preservation storage box at intervals in parallel, two ends of the heat exchange coils are respectively communicated with the output pipe and the return pipe, the input end of the hot water pump is communicated with the heating box through a pipeline, the output end of the hot water pump is communicated with the output pipe, and the return pipe is communicated with the heating box; the problems that water and drilling fluid are easy to freeze, the traditional heating mode is common in effect, the water storage and heat preservation effects are poor, the liquid cooling speed is high after heating is stopped, the use cost is high and the like when the drilling construction is carried out on a plateau and in low-temperature cold weather are solved.
Description
Technical Field
The utility model relates to the technical field of geological drilling, in particular to a liquid heating and heat preserving device for drilling.
Background
Water is one of the indispensable materials for geological drilling; most of drilling fluid, cement slurry, part of polymer solution and the like are materials prepared from water. When the drilling construction is carried out on a plateau and in low-temperature cold weather, the drilling construction efficiency is seriously affected by water and drilling fluid icing caused by low temperature, and when the drilling auxiliary operation is carried out, the drilling work cannot be carried out due to the fact that the drilling fluid and the water cannot be timely supplied due to icing is avoided; especially when the drilling fluid stops circulating during the tripping process, the fluid is prone to ice.
The traditional solution is to directly or indirectly heat the water tank, the water pipe and the like by adopting an additional heating device, so that a large amount of energy is consumed, the heating effect is common, and after the heating is stopped, the liquid cooling speed is high, and the use cost is high.
Disclosure of Invention
The utility model aims to provide a liquid heating and heat preservation device for drilling, which solves the problems that water and drilling fluid are easy to freeze when drilling construction is carried out on a plateau and in low-temperature cold weather, the traditional heating mode has common effect, the water storage and heat preservation effects are poor, the liquid cooling speed is high after heating is stopped, the use cost is high and the like.
The embodiment of the utility model is realized by the following technical scheme: the liquid heating and heat preservation device for drilling comprises a heat preservation storage box, an auxiliary heating component and a plurality of stirring blades, wherein a liquid inlet and a liquid outlet are oppositely formed in the heat preservation storage box, and the stirring blades are rotatably arranged in the heat preservation storage box;
the auxiliary heating assembly comprises a heating box, a hot water pump, an output pipe, a return pipe and a plurality of heat exchange coils, wherein the heat exchange coils are arranged in the heat preservation storage box at intervals in parallel, the two ends of each heat exchange coil are respectively communicated with the output pipe and the return pipe, the input end of the hot water pump is communicated with the heating box through a pipeline, the output end of the hot water pump is communicated with the output pipe, and the return pipe is communicated with the heating box.
Further, the flow direction of the drilling fluid conveyed from the fluid inlet to the fluid outlet is opposite to the conveying direction of the heat exchange coil.
Further, the heat-insulating storage box sequentially comprises a protective layer, a heat-insulating layer and a metal layer from outside to inside;
the protective layer is made of stainless steel; the heat preservation layer adopts asbestos material, the metal layer adopts the steel sheet material.
Further, the heat insulation layer comprises heating belts, wherein a plurality of heating belts are paved on the outer wall of the metal layer at intervals, and a plurality of heating belts are embedded into the heat insulation layer.
Further, the stirring device also comprises a low-speed motor, wherein the low-speed motor is used for driving the stirring blade to rotate;
the stirring blade is horizontally and rotatably arranged at the inner bottom of the heat preservation storage box.
Further, a plurality of radiating fins are arranged on the heat exchange coil.
Further, the system also comprises a first thermometer and a second thermometer, wherein the first thermometer is arranged on the heat-preserving storage box and is used for detecting the temperature of drilling fluid in the heat-preserving storage box;
the second thermometer is arranged on the heating box and is used for detecting the temperature of the high-temperature medium output by the heating box.
Further, the heat preservation storage box is also provided with a positive and negative pressure protector.
Further, a liquid level meter is further arranged on the heat preservation storage box.
The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:
1. the heating box is mainly internally provided with a heating medium through electricity and other energy sources, the heating medium is pumped out through a hot water pump and is conveyed into a plurality of heat exchange coils through an output pipe, heat exchange is carried out between the heat exchange coils and drilling fluid in the heat preservation storage box, high-temperature hot water is continuously pumped in to heat the drilling fluid, after heat transfer, cooled medium water flows back into the heating box from a return pipe, and after the medium water is heated again, the medium water is pumped out by the hot water pump; after the drilling fluid enters the heat preservation storage box, the temperature of the heat exchange coil is gradually increased in the process of moving towards the liquid outlet, and as a certain time is needed for heat transfer, the drilling fluid is continuously heated from low temperature to high temperature, and the medium water at high temperature reversely heats the drilling fluid, so that the heating rate is high, and the temperature of the drilling fluid is higher when being discharged.
2. The low-speed motor is located the heat preservation storage box outsole, be connected through transmission shaft and stirring vane transmission, the transmission shaft is used for preventing inside drilling fluid seepage through mechanical seal with the heat preservation storage box, stir inside drilling fluid through a plurality of stirring vanes, accelerate the flow of drilling fluid inside, and then can make the drilling fluid contact with the heat exchange coil in the auxiliary heating subassembly fast, and then make the drilling fluid heat up fast, the drilling fluid that stirs simultaneously can prevent its solidification and the solid matter sediment that the drilling fluid carried in the heat preservation storage box, prevent inside siltation silt etc. influence the normal use of heat preservation storage box.
3. The heat preservation storage box sequentially comprises a protective layer, a heat preservation layer and a metal layer from outside to inside, and further comprises heating belts, wherein a plurality of heating belts are paved on the outer wall of the metal layer at intervals, and are embedded into the heat preservation layer. The heating belt is a thin strip-shaped electric heating element, is wound on the outer wall of the metal layer, can uniformly distribute heating power on the surface of the metal layer, has a good heating effect, can heat the metal layer, combines asbestos wrapping of the heat preservation layer, can enable the metal layer to form a heat preservation container, and can enable the internal drilling fluid to be kept in a fixed temperature range even if the internal drilling fluid stops flowing and the auxiliary heating assembly does not heat.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic front view of the internal structure of a drilling fluid heating and insulating apparatus according to the present utility model;
fig. 2 is an enlarged schematic view of the structure a in fig. 1:
FIG. 3 is a schematic view of the structure of the section at B-B in FIG. 1;
FIG. 4 is a schematic top view of a drilling fluid heating and holding apparatus according to the present utility model;
FIG. 5 is a schematic diagram showing the cooperation of a metal layer and a heating belt in a liquid heating and heat preservation device for drilling according to the present utility model;
icon: 1. the heat preservation storage box, 11, the inlet, 12, the liquid outlet, 13, the protective layer, 14, the heat preservation, 15, the metal level, 2, the auxiliary heating subassembly, 21, the heating cabinet, 22, the hot-water pump, 23, the output tube, 24, the back flow, 25, the heat exchange coil, 26, fan heat fin, 3, stirring vane, 4, the heating band, 5, the low-speed motor, 6, first thermometer, 7, the second thermometer, 8, positive negative pressure protector, 9, the level gauge, 10, the sealing washer.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 5, the present embodiment provides a liquid heating and heat preservation device for drilling, which comprises a heat preservation storage box 1, an auxiliary heat component 2 and a plurality of stirring blades 3, wherein a liquid inlet 11 and a liquid outlet 12 are relatively arranged on the heat preservation storage box 1, treated drilling liquid is discharged from the liquid inlet 11, and is discharged from the liquid outlet 12 after being heated, so as to ensure smooth development of drilling work.
As shown in fig. 1, 3 and 4, the auxiliary heat assembly 2 comprises a heating box 21, a hot water pump 22, an output pipe 23, a return pipe 24 and a plurality of heat exchange coils 25, wherein the heat exchange coils 25 are arranged in the heat preservation storage box 1 at intervals in parallel, and the heat exchange coils 25 are wavy and serpentine and are bent to be plate-shaped; two ends of a plurality of heat exchange coils 25 extend out of the top of the heat preservation storage box 1 and are respectively communicated with an output pipe 23 and a return pipe 24, the input end of a hot water pump 22 is communicated with the heating box 21 through a pipeline, the output end of the hot water pump 22 is communicated with the output pipe 23, and the return pipe 24 is communicated with the heating box 21; in specific implementation, the heating tank 21 is mainly internally heated by electricity and other energy sources, the hot water medium is pumped out by the hot water pump 22 and is conveyed into the plurality of heat exchange coils 25 by the output pipe 23, heat exchange is carried out between the heat exchange coils 25 and the drilling fluid in the heat preservation storage tank 1, high-temperature hot water is continuously pumped in to heat the drilling fluid, after heat transfer, cooled medium water flows back into the heating tank 21 from the return pipe 24, and is pumped out by the hot water pump 22 after being heated again.
More specifically, the flow of drilling fluid from the inlet 11 to the outlet 12 is in the opposite direction to the flow of heat exchange coil 25. In specific implementation, namely after the drilling fluid enters the heat preservation storage box 1, in the process of moving towards the liquid outlet 12, the temperature of the heat exchange coil 25 is gradually increased, and as a certain time is needed for heat transfer, the drilling fluid is continuously heated from low temperature to high temperature, and medium water with high temperature reversely heats the drilling fluid, so that the heating rate is high, and the temperature of the drilling fluid is higher when being discharged.
Meanwhile, as shown in fig. 1 and 3, a plurality of stirring blades 3 are rotatably arranged in the heat-preserving storage box 1; the stirring device also comprises a low-speed motor 5, wherein the low-speed motor 5 is used for driving the stirring blade 3 to rotate; the stirring blade 3 is horizontally and rotatably arranged at the inner bottom of the heat preservation storage box 1. During concrete implementation, the low-speed motor is located the heat preservation storage box 1 outsoles, be connected through transmission shaft and stirring vane 3 transmission, the transmission shaft is used for preventing inside drilling fluid seepage through mechanical seal with heat preservation storage box 1, stir inside drilling fluid through a plurality of stirring vane 3, accelerate the flow of drilling fluid inside, and then can make the drilling fluid contact with the heat exchange coil 25 in the auxiliary heating subassembly 2 fast, and then make the drilling fluid heat up fast, the drilling fluid that stirs simultaneously can prevent its solidification and the solid matter that the drilling fluid carried deposit in heat preservation storage box 1, prevent inside siltation silt etc. influence the normal use of heat preservation storage box 1.
As shown in fig. 1 and 2, the thermal insulation storage box 1 sequentially comprises a protective layer 13, a thermal insulation layer 14 and a metal layer 15 from outside to inside;
in the concrete implementation, the protective layer 13 is made of stainless steel, plays a role in protecting the outer surface of the heat preservation storage box 1, and can be sprayed with paint and the like to form a compact layer for preventing rust;
the heat preservation layer 14 is made of asbestos material, and can also be made of heat preservation materials such as aluminum silicate cotton, plate type glass fiber and the like, so as to play a role in heat preservation and heat insulation;
the inner metal layer 15 is made of steel plate or aluminum, and plays a role in keeping the rigidity of the liquid container for containing drilling fluid.
More specifically, as shown in fig. 5, the heat insulation device further comprises heating belts 4, wherein a plurality of heating belts 4 are laid on the outer wall of the metal layer 15 at intervals, and the heating belts 4 are embedded into the heat insulation layer 14. The heating belt 4 is a thin strip-shaped electric heating element, is wound on the outer wall of the metal layer 15, can uniformly distribute heating power on the surface of the metal layer 15, has a good heating effect, can heat the metal layer 15, is wrapped by asbestos combined with the heat preservation layer 14, can enable the metal layer 15 to form a heat preservation container, and can enable the drilling fluid inside to be kept in a fixed temperature range even if the drilling fluid inside stops flowing and the auxiliary heating assembly 2 does not heat.
More specifically, the heat exchange coil 25 is provided with a plurality of heat radiating fins 26, which are helpful for transferring heat inside the heat exchange coil 25 to the drilling fluid more quickly.
As shown in fig. 1 and 4, the device further comprises a first thermometer 6 and a second thermometer 7, wherein the first thermometer 6 is arranged on the thermal insulation storage box 1 and is used for detecting the temperature of drilling fluid in the thermal insulation storage box 1;
the second thermometer 7 is provided on the heating box 21 for detecting the temperature of the high temperature medium output from the heating box 21.
During concrete implementation, a temperature control system can be further arranged, the temperature of the internal drilling fluid is monitored in real time through the first thermometer 6, then when the temperature of the drilling fluid is low, the heating power of the heating box 21 is improved, high-temperature hot water is further provided, the flow speed of the hot water is improved, so that the rapid heating of the drilling fluid is realized, similarly, when the internal temperature is high, the power of the heating box 21 can be properly reduced, the temperature of the hot water output by the heating box 21 can be fed back by the second thermometer 7, the real-time monitoring can be further realized, the constant temperature or the temperature rise and fall of the drilling fluid can be controlled, and the water temperature deficiency and the energy waste can be avoided.
More specifically, the heat preservation storage box 1 is further provided with a positive and negative pressure protector 8, and the positive and negative pressure protector 8 is communicated with the inside of the heat preservation storage box 1 and used for preventing the pressure from being too high or too low and damaging the box body structure of the heat preservation storage box 1.
Meanwhile, the heat-preservation storage box 1 is further provided with a liquid level meter 9 for conveniently reading the liquid level height of the internal drilling fluid, so that the content of the internal drilling fluid is known.
More specifically, the heat preservation bin 1 adopts box and case lid setting, is convenient for the maintenance of heat preservation bin 1 internals, and box and case lid pass through sealing washer 10 and seal, prevent that liquid from flowing out and heat preservation effect is good.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. A liquid heating and insulating device for drilling, characterized in that: the heat-preserving storage box comprises a heat-preserving storage box (1), an auxiliary heat component (2) and a plurality of stirring blades (3), wherein a liquid inlet (11) and a liquid outlet (12) are oppositely arranged on the heat-preserving storage box (1), and the stirring blades (3) are rotatably arranged in the heat-preserving storage box (1);
the auxiliary heating assembly (2) comprises a heating box (21), a hot water pump (22), an output pipe (23), a return pipe (24) and a plurality of heat exchange coils (25), wherein the heat exchange coils (25) are arranged in the heat preservation storage box (1) at parallel intervals, two ends of the heat exchange coils (25) are respectively communicated with the output pipe (23) and the return pipe (24), an input end of the hot water pump (22) is communicated with the heating box (21) through a pipeline, an output end of the hot water pump (22) is communicated with the output pipe (23), and the return pipe (24) is communicated with the heating box (21).
2. A drilling fluid heating and insulating device according to claim 1, characterized in that the flow direction of the drilling fluid fed from the inlet (11) to the outlet (12) is opposite to the feed direction of the heat exchanging coil (25).
3. A drilling fluid heating and insulating device according to claim 2, characterized in that the insulating storage tank (1) comprises, in order from the outside to the inside, a protective layer (13), an insulating layer (14) and a metal layer (15);
the protective layer (13) is made of stainless steel; the heat preservation layer (14) is made of asbestos materials, and the metal layer (15) is made of steel plates.
4. A drilling fluid heating and insulating device according to claim 3, further comprising heating strips (4), wherein a plurality of heating strips (4) are laid on the outer wall of the metal layer (15) at intervals, and the heating strips (4) are embedded in the insulating layer (14).
5. A drilling fluid heating and insulating device according to claim 1, further comprising a low-speed motor (5), said low-speed motor (5) being adapted to drive said stirring blade (3) in rotation;
the stirring blade (3) is horizontally and rotatably arranged at the inner bottom of the heat preservation storage box (1).
6. Drilling fluid heating and insulating device according to claim 1, characterized in that the heat exchange coil (25) is provided with heat radiating fins (26).
7. A drilling fluid heating and holding device according to claim 1, further comprising a first thermometer (6) and a second thermometer (7), the first thermometer (6) being arranged on the holding tank (1) for detecting the temperature of the drilling fluid inside the holding tank (1);
the second thermometer (7) is arranged on the heating box (21) and is used for detecting the temperature of the high-temperature medium output by the heating box (21).
8. A drilling fluid heating and insulating device according to claim 1, characterized in that the insulating storage tank (1) is further provided with a positive and negative pressure protector (8).
9. A drilling fluid heating and holding device according to claim 8, characterized in that the holding tank (1) is further provided with a level gauge (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321457460.8U CN220017728U (en) | 2023-06-08 | 2023-06-08 | Liquid heating and heat preservation device for drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321457460.8U CN220017728U (en) | 2023-06-08 | 2023-06-08 | Liquid heating and heat preservation device for drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220017728U true CN220017728U (en) | 2023-11-14 |
Family
ID=88688934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321457460.8U Active CN220017728U (en) | 2023-06-08 | 2023-06-08 | Liquid heating and heat preservation device for drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220017728U (en) |
-
2023
- 2023-06-08 CN CN202321457460.8U patent/CN220017728U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202391870U (en) | Energy-saving oil temperature control device | |
| CN207649417U (en) | A kind of novel heat exchange water tank | |
| CN209524659U (en) | A kind of wide warm pump freezing point temperature running gear | |
| CN105402071A (en) | Engine preheating device based on phase change heat storage | |
| CN1851366A (en) | Solution-type dynamic ice-making system | |
| CN220017728U (en) | Liquid heating and heat preservation device for drilling | |
| US9890314B2 (en) | Using heat of solution of aluminum sulfate to store energy in tankless vacuum-tube solar water heaters | |
| CN206450107U (en) | Residual heat reclaiming apparatus for boiler vent gas | |
| CN101354223A (en) | Energy-saving apparatus | |
| CN201850545U (en) | Cold storage floor anti-freezing system adopting compressor exhaust as heat source to heat anti-frost liquid | |
| CN210296515U (en) | Quick cooling device for low-temperature test of fuel cell | |
| CN213863697U (en) | Chemical raw material storage tank | |
| CN108518782A (en) | A kind of cooling/warming system of solar energy integration air source heat pump | |
| CN208365712U (en) | A kind of cooling/warming system of solar energy integration air source heat pump | |
| CN113048676B (en) | Circulating cooling device and using method thereof | |
| CN206563381U (en) | A kind of system for being used to prevent that cold-storage water pot from freezing | |
| CN206338948U (en) | A kind of partition heating formula water tank | |
| CN219083399U (en) | Heat pipe antifreezing device for heating furnace liquid level meter | |
| CN106996642A (en) | Double water tank pipeline bearing type air energy water heater | |
| CN108826774A (en) | A kind of wide warm pump freezing point temperature running gear and its progress control method | |
| LU504205B1 (en) | A molten salt heat storage device for thermal power plants | |
| CN206496545U (en) | Seawater source heat pump system | |
| CN204554958U (en) | Single household heating system | |
| CN203123952U (en) | Gum-making cooling device of silicone sealing gum | |
| CN214581805U (en) | Anti-icing heating device for etching solution in winter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |