CN111237842B - Auxiliary heating device for heat storage tank of heating unit - Google Patents
Auxiliary heating device for heat storage tank of heating unit Download PDFInfo
- Publication number
- CN111237842B CN111237842B CN202010155094.5A CN202010155094A CN111237842B CN 111237842 B CN111237842 B CN 111237842B CN 202010155094 A CN202010155094 A CN 202010155094A CN 111237842 B CN111237842 B CN 111237842B
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- pipe
- water
- auxiliary heating
- heat storage
- storage tank
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 67
- 238000005338 heat storage Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 111
- 238000004140 cleaning Methods 0.000 claims abstract description 36
- 239000007921 spray Substances 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 238000005507 spraying Methods 0.000 claims description 21
- 238000005485 electric heating Methods 0.000 claims description 20
- 238000003466 welding Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000007790 scraping Methods 0.000 abstract 2
- 230000007306 turnover Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
- F24D11/004—Central heating systems using heat accumulated in storage masses water heating system with conventional supplementary heat source
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- B08B1/32—
Abstract
The invention discloses an auxiliary heating device for a heat storage tank of a heating unit, relates to the technical field of auxiliary heating equipment, and solves the problems that in the conventional heating device, scales generated on the outer wall of a heating pipe are inconvenient to clean, a heat storage tank body needs to be disassembled and opened, and scraping and cleaning are manually carried out, so that the cleaning efficiency is low and labor is wasted. The utility model provides a heat supply unit heat storage tank auxiliary heating device, includes the heat-retaining jar body, the spray pipe, circulating water pump, cleans clear frame and water wheels, the periphery of the heat-retaining jar body interlude is that annular array hangs and props and be provided with six auxiliary heating jar, and this six auxiliary heating jar is through the business turn over water pipe at upper and lower both ends in heat-retaining jar body welded fastening intercommunication, and all lock joint has a tee bend electric ball valve on the tail end section of six auxiliary heating jar upper portion inlet tubes. According to the invention, the two deflector rods are used, the water wheel can rotate to drive the two cleaning frames to alternately slide up and down, and the stainless steel brush wires on the inner wall of the lantern ring are used for scraping and cleaning water scale on the outer wall of the pipe sleeve, so that the cleaning efficiency is high.
Description
Technical Field
The invention relates to the technical field of auxiliary heating equipment, in particular to an auxiliary heating device for a heat storage tank of a heating unit.
Background
In recent years, the new energy power in China has a remarkable increase speed, but the phenomenon of wind and light abandonment is serious, particularly in the northeast of China, the problem of wind power consumption in hot seasons is particularly prominent, and the main reason is that in the northeast of China, water and electricity, a straight condensing unit and the like can participate in deep peak shaving, and a heat supply unit needs to meet the heat load demand of a heat user, so that the forced output of the unit in the low-valley period of the electricity load demand at night is too high, and the wind power internet space is insufficient. Obviously, if the constraint of 'fixing the power with the heat' of the heat supply unit is removed in the 'wind power surplus' period, the forced output generated by ensuring the heat supply of the unit in the low-ebb period of the electric load demand is reduced, and a huge internet space is vacated for the wind power. Therefore, the realization of the thermoelectric decoupling control of the heat supply unit is an important way for solving the problem of wind power consumption in the northeast China.
At present, the mainstream methods for realizing the thermoelectric decoupling of the heat supply unit include a bypass compensation heat supply method, an electric heating compensation heat supply method, a heat storage compensation heat supply method and the like. The heat storage compensation heating method comprises the steps of translating heat loads by utilizing day-night difference of heat load requirements of heat users, storing heat in a heat storage tank when the heat supply capacity of heat supply extraction steam can meet the heat load requirements of a heat supply network and is abundant in the day, and starting the heat storage tank to release heat outwards to compensate the part with insufficient heat supply extraction capacity when a unit participates in deep peak regulation at night when the heat supply extraction steam quantity is insufficient to meet the heat load requirements of the heat supply network; the auxiliary heating means has high one-time investment cost and higher operation economy
The existing heating device is ubiquitous, the heating pipe is directly inserted into the heat storage tank body, the device is required to be suspended when being maintained and replaced, the normal use of the device is influenced, the scale generated on the outer wall of the heating pipe is inconvenient to clean, the heat storage tank body is required to be detached, opened and scraped manually to clean, the cleaning efficiency is low and labor is wasted, the production is required to be stopped, and the production efficiency is reduced.
Disclosure of Invention
The invention aims to provide an auxiliary heating device for a heat storage tank of a heating unit, which aims to solve the problems that the heating pipe is directly inserted into the heat storage tank body, the device is required to be suspended during maintenance and replacement, the normal use of the device is influenced, scales attached to the outer wall of the heating pipe are inconvenient to clean, the heat storage tank body is required to be disassembled and opened and manually scraped for cleaning, the cleaning efficiency is low, labor is wasted, the production is required to be stopped, and the production efficiency is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: an auxiliary heating device of a heat storage tank of a heat supply unit comprises a heat storage tank body, a water spray pipe, a circulating water pump, an electric heating rod, a cleaning frame and a water wheel, wherein the circulating water pump comprises a water guide annular pipe; the periphery of the middle section of the heat storage tank body is provided with six auxiliary heating tanks in an annular array hanging support mode, the six auxiliary heating tanks are fixedly communicated with the heat storage tank body through water inlet and outlet pipes at the upper end and the lower end in a welding mode, and the tail end sections of the water inlet pipes at the upper parts of the six auxiliary heating tanks are all connected with a three-way electric ball valve in a locking mode; the whole spray pipe is arranged in a frame-shaped folding way, and the head end of the spray pipe is connected with the middle connector of the three-way electric ball valve in a locking way; the electric heating rod is a liquid heating pipe, and the top end section of the electric heating rod is provided with an external thread; the cleaning frame is integrally arranged in an inverted Jiong shape, and two cleaning frames are arranged inside each auxiliary heating tank in a sliding manner; the water wheel is made of plastic materials and integrally formed by welding a left disk seat, a right disk seat and an intermediate connecting rotating shaft in a supporting mode, and six shifting pieces are supported on the two disk seats in an annular array mode.
Preferably, the auxiliary heating tank comprises a pipe sleeve and a positioning plate; the auxiliary heating jar is by upper and lower two parts locking butt joint and constitutes, wherein the symmetry has four pipe casings of through welding on the first half, and the inboard bottom position support welding of the latter half has a locating plate.
Preferably, the four electric heating rods are correspondingly locked and hermetically inserted into the four pipe sleeves, and heat conducting oil is filled in the four pipe sleeves.
Preferably, the water wheel comprises a deflector rod, the water wheel is rotatably inserted on the middle section of the positioning plate through a middle connecting rotating shaft, and two deflector rods are rotatably supported on the end faces of the outer sides of the left and right disc seats of the water wheel in a front-back corresponding threaded manner.
Preferably, the wiping frame comprises a lantern ring and a supporting connecting rod; the wiping frame is formed by combining two vertical supporting rods and two supporting connecting rods welded between the tail end sections of the two vertical supporting rods at intervals, and six lantern rings are welded on the two vertical supporting rods in a distributed mode.
Preferably, the water spraying pipe comprises a water spraying cover, the tail end of the water spraying pipe is welded with the water spraying cover downwards, and the water spraying cover is just close to and overhead above the water wheel.
Preferably, a sliding groove is formed between the two supporting connecting rods at the bottom of the cleaning frame at intervals, and the two deflector rods of the water wheel are correspondingly inserted into the sliding grooves of the two supporting connecting rods at the bottom of the two cleaning frames.
Preferably, stainless steel brush wires are uniformly distributed on the circumferential inner wall of the lantern ring, and four rows of lantern rings on the two cleaning frames are correspondingly sleeved on four pipe sleeves in a sliding manner.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the blocking electric heating rod and the auxiliary heating tank of the pipe sleeve are separated at intervals, and are not directly communicated or linked, so that the auxiliary heating tank does not need to be disassembled after the electric heating rod is damaged, the heat storage cycle working flow of the whole device is not stopped, the electric heating rod and the auxiliary heating tank are directly taken down and replaced under the condition that the normal use of the whole device is not influenced, and the operation is convenient and fast;
2. the cleaning component is driven by the water flow impact force generated by the water pump, the kinetic energy of the water pump motor is fully utilized, compared with the traditional driving mode of adopting external motors and other power sources, the driving mode of utilizing the through rotation of the rotating shaft does not need to arrange a through hole for installing the rotating shaft on the heating container, the sealing effect is better, and the equipment cost is reduced without additionally arranging a power source for cleaning operation;
3. through two driving levers, the water wheels can rotate to drive the two cleaning frames to alternately slide up and down and scrape scale on the outer wall of the pipe sleeve by utilizing the stainless steel brush wires on the inner wall of the sleeve ring, the cleaning efficiency is high, manual cleaning of the pipe sleeve is omitted, labor is saved, the water wheels and the two cleaning frames are located inside the auxiliary heating tank, the pipe sleeve can be cleaned without disassembling the auxiliary heating tank and stopping production, the cleaning steps of the cleaning frames are simplified, and the cleaning operation of the scale is convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic three-dimensional structure of the present invention;
FIG. 3 is a schematic three-dimensional structure of an auxiliary heating tank according to the present invention;
FIG. 4 is a schematic view of the insertion mounting structure of the electric heating rod of the present invention;
FIG. 5 is a schematic view of the sliced internal structure of the auxiliary heating tank of the present invention;
FIG. 6 is a schematic three-dimensional structure of the wiping frame of the present invention;
FIG. 7 is a schematic three-dimensional view of a sprinkler pipe according to the present invention;
FIG. 8 is a schematic view of a three-dimensional structure of a water wheel according to the present invention;
in the figure: 1. a heat storage tank body; 2. an auxiliary heating tank; 201. pipe sleeve; 202. positioning a plate; 3. a three-way electric ball valve; 4. a water spray pipe; 401. a water spraying cover; 5. a water circulating pump; 501. a water guiding annular pipe; 6. an electrical heating rod; 7. a wiping frame; 701. a collar; 702. a support link; 8. a water wheel; 801. a deflector rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 8, an embodiment of the present invention includes: an auxiliary heating device for a heat storage tank of a heating unit comprises a heat storage tank body 1, a water spray pipe 4, a circulating water pump 5, an electric heating rod 6, a cleaning frame 7 and a water wheel 8, wherein the circulating water pump 5 comprises a water guide annular pipe 501, the heat storage tank body 1 is installed in a vertical support mode, the topmost end of the heat storage tank body is locked and installed with one circulating water pump 5, the water guide annular pipe 501 is supported by a circumferential peripheral annular sleeve of the circulating water pump 5, the water guide annular pipe 501 is locked and communicated with a water outlet pipe of the circulating water pump 5, and a water inlet pipe at the bottom of the circulating water pump 5 penetrates through and is vertically inserted into the heat storage tank; the periphery of the middle section of the heat storage tank body 1 is provided with six auxiliary heating tanks 2 in an annular array hanging support mode, the six auxiliary heating tanks 2 are fixedly communicated with the heat storage tank body 1 through water inlet and outlet pipes at the upper end and the lower end in a welding mode, and the tail end sections of the water inlet pipes at the upper parts of the six auxiliary heating tanks 2 are all connected with a three-way electric ball valve 3 in a locking mode; the auxiliary heating tank 2 comprises a pipe sleeve 201 and a positioning plate 202; the auxiliary heating tank 2 is formed by locking and butting an upper part and a lower part, wherein the upper half part is symmetrically penetrated and welded with four pipe sleeves 201, and the bottom of the inner side of the lower half part is supported and welded with a positioning plate 202; the whole spray pipe 4 is arranged in a frame-shaped folding way, and the head end of the spray pipe is locked and connected with the middle connector of the three-way electric ball valve 3; the electric heating rod 6 is a liquid heating pipe, and the top end section of the electric heating rod is provided with an external thread; the wiping frame 7 is integrally arranged in an inverted Jiong shape, and two wiping frames 7 are arranged inside each auxiliary heating tank 2 in a sliding manner; the water wheel 8 is made of plastic materials and integrally comprises a left disk seat, a right disk seat and a middle connecting rotating shaft which are supported and welded, and six shifting pieces are supported on the two disk seats in an annular array manner; the water wheel 8 comprises a deflector rod 801, the water wheel 8 is rotatably inserted into the middle section of the positioning plate 202 through a connecting rotating shaft in the middle, and two deflector rods 801 are screwed and supported on the outer end faces of the left and right disc seats of the water wheel 8 in a front-back corresponding thread manner.
The 6 brands of the electric heating rod are 157509266297567 origin places, China mainland province, Jiangsu province, prefecture, Thai city, 12V-50W-100MM 4 mark division 12V-10
The three-way electric ball valve 3 is of ZGFV/Fangwei type, and is made of FVQ2011 material, the brass producing area is China mainland province, Jiangsu province, prefecture, Nanjing city, and the three-way type 8NM large torsion DN 154
8NM structural style of the single electric actuator, namely a floating ball valve connecting mode, namely an internal thread
Further, the four electric heating rods 6 are correspondingly locked and hermetically inserted into the four pipe sleeves 201, heat conducting oil is filled in the four pipe sleeves 201, and the electric heating rods 6 exchange and transfer heat by utilizing the heat conducting oil in the pipe sleeves 201.
Further, the wiping frame 7 comprises a lantern ring 701 and a support connecting rod 702; the wiping frame 7 is formed by jointly combining two vertical supporting rods and two supporting connecting rods 702 welded between the tail end sections of the two vertical supporting rods at intervals, six lantern rings 701 are welded on the two vertical supporting rods in a arrayed mode, and the two wiping frames 7 can scrape and clean water scales on the four pipe sleeves 201.
Further, the water spraying pipe 4 comprises a water spraying cover 401, the tail end of the water spraying pipe 4 is welded with a water spraying cover 401 downwards, the water spraying cover 401 is just close to and overhead right above the water wheel 8, the water spraying cover 401 can discharge high-speed water flow and impact the water wheel 8, and the impact drives the water wheel 8 to rotate.
Furthermore, a sliding groove is formed between two supporting connecting rods 702 at the bottom of the cleaning frame 7 at intervals, two deflector rods 801 of the water wheel 8 are correspondingly inserted into the sliding grooves of the two supporting connecting rods 702 at the bottom of the two cleaning frame 7, the water wheel 8 can rotate to drive the two cleaning frames 7 to slide up and down alternately through the two deflector rods 801, and scales on the outer wall of the pipe sleeve 201 are scraped and cleaned by stainless steel brush wires on the inner wall of the sleeve ring 701, so that the cleaning efficiency is high, the manual cleaning of the pipe sleeve 201 is omitted, and the labor is saved.
Further, stainless steel brush wires are uniformly distributed on the inner wall of the circumference of the lantern ring 701, and four rows of lantern rings 701 on the two wiping frames 7 are correspondingly sleeved on the four pipe sleeves 201 in a sliding manner.
The working principle is as follows:
the heat storage tank body 1 is used for temporarily storing and keeping the heat of hot water, the hot water can enter and be stored through the water inlet pipe at the top end, and the hot water is discharged through the water outlet pipe at the bottom when in use;
the periphery of the middle section of the heat storage tank body 1 is provided with six auxiliary heating tanks 2 in an annular array hanging support mode, the six auxiliary heating tanks 2 are fixedly welded and communicated with the heat storage tank body 1 through water inlet and outlet pipes at the upper end and the lower end, the six auxiliary heating tanks 2 are used for carrying out auxiliary heating and heat preservation on hot water in the heat storage tank body 1, heat conducting oil is filled in the four pipe sleeves 201, and the electric heating rods 6 carry out heat exchange and transfer by utilizing the heat conducting oil in the pipe sleeves 201;
when the pipe sleeve 201 needs to be cleaned, firstly, a button on the electric box needs to be controlled to control the three-way electric ball valve 3 to connect the water spraying pipe 4 with the water inlet pipe on the upper part of the heat storage tank body 1 and cut off the water inlet pipe on the upper part of the heat storage tank body 1, when the water spraying pipe 4 is supplied with water, the water spraying cover 401 at the tail end can discharge high-speed water flow and impact the high-speed water flow on the water wheel 8, the water wheel 8 is driven to rotate by the impact, the two wiping frames 7 can be driven to rotate by the two driving rods 801, the water wheel 8 can rotate to drive the two wiping frames 7 to slide up and down alternately, and scales on the outer wall of the pipe sleeve.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides a heat supply unit heat storage jar auxiliary heating device which characterized in that: the cleaning device comprises a heat storage tank body (1), a water spraying pipe (4), a circulating water pump (5), an electric heating rod (6), a cleaning frame (7) and a water wheel (8), wherein the circulating water pump (5) comprises a water guide annular pipe (501), the heat storage tank body (1) is vertically supported, the topmost end of the heat storage tank body is locked and installed with one circulating water pump (5), the water guide annular pipe (501) is supported by a circumferential peripheral ring sleeve of the circulating water pump (5), the water guide annular pipe (501) is locked and communicated with a water outlet pipe of the circulating water pump (5), and a water inlet pipe at the bottom of the circulating water pump (5) penetrates through the interior of the heat storage tank body (1) in a vertical insertion mode; the periphery of the middle section of the heat storage tank body (1) is provided with six auxiliary heating tanks (2) in an annular array hanging support mode, the six auxiliary heating tanks (2) are fixedly communicated with the heat storage tank body (1) in a welding mode through water inlet and outlet pipes at the upper end and the lower end, and the tail end sections of the water inlet pipes at the upper parts of the six auxiliary heating tanks (2) are all connected with a three-way electric ball valve (3) in a locking mode; the whole spray pipe (4) is arranged in a frame-shaped folding way, and the head end of the spray pipe is locked and connected with the middle connector of the three-way electric ball valve (3); the electric heating rod (6) is a liquid heating pipe, and the top end section of the electric heating rod is provided with an external thread; the cleaning frame (7) is integrally arranged in an inverted Jiong shape, and two cleaning frames (7) are arranged inside each auxiliary heating tank (2) in a sliding manner; the water wheel (8) is made of plastic materials and integrally formed by welding a left disk seat, a right disk seat and a middle connecting rotating shaft in a supporting mode, and six shifting pieces are supported on the two disk seats in an annular array mode; the wiping frame (7) comprises a lantern ring (701) and a supporting connecting rod (702); the wiping frame (7) is formed by jointly combining two vertical supporting rods and two supporting connecting rods (702) welded between the tail end sections of the two vertical supporting rods at intervals, and six lantern rings (701) are welded on the two vertical supporting rods in a distributed mode; the water spraying pipe (4) comprises a water spraying cover (401), the tail end of the water spraying pipe (4) is welded with the water spraying cover (401) downwards, and the water spraying cover (401) is just close to and arranged right above the water wheel (8); a sliding groove is formed between the two supporting connecting rods (702) at the bottom of the cleaning frame (7) at intervals, and the two deflector rods (801) of the water wheel (8) are correspondingly inserted into the sliding grooves of the two supporting connecting rods (702) at the bottom of the cleaning frame (7); stainless steel brush wires are uniformly distributed on the circumferential inner wall of the lantern ring (701), and four rows of lantern rings (701) on the two cleaning frames (7) are correspondingly sleeved on the four pipe sleeves (201) in a sliding mode.
2. A heat supply unit heat storage tank auxiliary heating apparatus according to claim 1, characterized in that: the auxiliary heating tank (2) comprises a pipe sleeve (201) and a positioning plate (202); the auxiliary heating jar (2) is formed by upper and lower two parts locking butt joint, and wherein the symmetry runs through the welding on the upper half has everywhere pipe box (201), and the inboard bottom position support welding of the latter half has a locating plate (202).
3. A heat supply unit heat storage tank auxiliary heating apparatus according to claim 1, characterized in that: the electric heating rods (6) are correspondingly locked, sealed and inserted into the pipe sleeves (201) at four positions, and heat conduction oil is filled in the pipe sleeves (201) at four positions.
4. A heat supply unit heat storage tank auxiliary heating apparatus according to claim 1, characterized in that: the water wheel (8) comprises a deflector rod (801), the water wheel (8) is rotatably inserted in the middle section of the positioning plate (202) through a connecting rotating shaft in the middle, and two deflector rods (801) are screwed and supported on the end faces of the outer sides of the left and right disc seats of the water wheel (8) in a front-back corresponding thread manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010155094.5A CN111237842B (en) | 2020-03-09 | 2020-03-09 | Auxiliary heating device for heat storage tank of heating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010155094.5A CN111237842B (en) | 2020-03-09 | 2020-03-09 | Auxiliary heating device for heat storage tank of heating unit |
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| Publication Number | Publication Date |
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| CN111237842A CN111237842A (en) | 2020-06-05 |
| CN111237842B true CN111237842B (en) | 2021-05-18 |
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| CN202010155094.5A Expired - Fee Related CN111237842B (en) | 2020-03-09 | 2020-03-09 | Auxiliary heating device for heat storage tank of heating unit |
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| CN206831661U (en) * | 2017-05-09 | 2018-01-02 | 新地能源工程技术有限公司 | A kind of compressor room waste heat recovery heating system |
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| CN207839462U (en) * | 2017-12-01 | 2018-09-11 | 高安市超鹰科技有限公司 | A kind of gear cleaning device |
| CN208366122U (en) * | 2018-03-29 | 2019-01-11 | 华北电力大学（保定） | A kind of heat exchanger of solar energy earth source heat pump |
| CN208059674U (en) * | 2018-04-20 | 2018-11-06 | 福建南安市满天星水暖有限公司 | A kind of hot-water heating pipe cleaning device for outer walls |
| CN208312525U (en) * | 2018-05-23 | 2019-01-01 | 辽宁赛科新能源技术开发有限公司 | Solid electric heat storage equipment single air duct two fans system |
| CN208964586U (en) * | 2018-10-08 | 2019-06-11 | 丁晖 | A kind of fresh water ultraviolet sterilizer for aquaculture |
| CN209263223U (en) * | 2018-11-06 | 2019-08-16 | 深圳锦和能源环保有限公司 | A kind of cold heat accumulation integrated apparatus of storage |
| CN109931652A (en) * | 2019-01-18 | 2019-06-25 | 广东微暖科技有限公司 | A kind of energy-storage type superconducting heating equipment |
| CN210108131U (en) * | 2019-01-28 | 2020-02-21 | 刘占平 | Disassembly-free ejection type cleaning water distribution pipe connector and floor heating water distributor thereof |
| CN209849361U (en) * | 2019-03-25 | 2019-12-27 | 中山市共创机械设备有限公司 | Mechanical descaling device of shell-and-tube heat exchanger |
| CN209978136U (en) * | 2019-04-24 | 2020-01-21 | 陕西金房能源科技有限公司 | Energy-saving heating and ventilating heating device |
| CN110788086A (en) * | 2019-09-24 | 2020-02-14 | 潘萍儿 | Cleaning machine for inner wall and outer wall of steel pipe |
| CN110822703A (en) * | 2019-11-23 | 2020-02-21 | 南京启景环境科技有限公司 | Electric heating circulation hot water warmer |
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