CN211875974U - Automatic steam generator of water injection - Google Patents
Automatic steam generator of water injection Download PDFInfo
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- CN211875974U CN211875974U CN202020118492.5U CN202020118492U CN211875974U CN 211875974 U CN211875974 U CN 211875974U CN 202020118492 U CN202020118492 U CN 202020118492U CN 211875974 U CN211875974 U CN 211875974U
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Abstract
The utility model discloses an automatic steam generator of water injection, include: steam water tank, heating mechanism and water injection mechanism. The water injection mechanism comprises a water injection water tank, a water injection water pipe and a water injection assembly, the water injection water tank comprises an upper water tank and a lower water tank, and the water injection assembly comprises a water injection shell, a thimble and a separation blade. Through design water injection water piping connection steam water tank and water injection water tank, when the water level was not enough in the steam water tank, the air in the steam water tank passed through the water injection water pipe and got into the lower floor water tank of water injection water tank, and this air makes the water of the upper water tank of water injection water tank flow in lower floor water tank through water injection sleeve from the separation blade of bottom jack-up water injection subassembly, and according to the linker principle, the water in the lower floor water tank passes through water injection water pipe inflow steam water tank to realize steam water tank's automatic water injection. Compared with the prior art, the utility model provides an automatic steam generator of water injection can realize automatic water injection, and simple structure easily realizes and promotes simultaneously.
Description
Technical Field
The utility model belongs to the technical field of steam generator, especially, automatic steam generator of water injection.
Background
A steam generator refers to a mechanical device that heats water into hot water or steam using heat energy of fuel or other heat sources. Steam generators, sometimes also referred to as steam boilers, are widely used in many fields, such as ships, power stations, locomotives, etc.
At present, a common steam generator mainly comprises a box body, a water inlet and a steam outlet are formed in the box body, a heating mechanism is arranged below the box body, and water in the box body is heated through the heating mechanism to generate high-temperature steam.
The water quantity in the box body is continuously reduced when the water in the box body is heated and evaporated in the working process of the steam generator. In order to maintain a sufficient amount of water in the water tank, it is generally necessary to provide a high temperature-resistant level sensor in the water tank and a water pump for supplying water to the water tank based on water level data monitored by the level sensor. Such steam generator structure is complicated, and the cost is higher simultaneously, is unfavorable for popularizing and applying.
SUMMERY OF THE UTILITY MODEL
The utility model provides an automatic steam generator of water injection to optimize current steam generator's performance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an automatic water injection steam generator comprising:
the steam water tank is provided with a water inlet and a steam port, the water inlet is arranged at one end of the side wall of the steam water tank close to the bottom, and the steam port is arranged at the top of the steam water tank;
the heating mechanism is arranged below the steam water tank and is used for heating the steam water tank;
the water injection mechanism comprises a water injection water tank, a water injection pipe and a water injection assembly, wherein the water injection pipe is used for connecting the water injection water tank with the steam water tank, the water injection assembly is arranged in the water injection water tank, the water injection water tank comprises an upper water tank and a lower water tank, a partition plate is arranged between the upper water tank and the lower water tank, and a threaded through hole is formed in the middle of the partition plate; one end of the water injection pipe is communicated with a water inlet of the steam water tank, and the other end of the water injection pipe is communicated with the lower-layer water tank; the water injection assembly comprises a cylindrical water injection shell and a thimble inserted into the water injection shell, wherein an external thread is arranged on the outer wall of the top of the water injection shell, the water injection shell is in threaded connection with the threaded through hole, a water injection sleeve is coaxially arranged in the water injection shell, the water injection sleeve is fixedly connected with the water injection shell, a supporting part is fixedly connected to the inner wall of the water injection sleeve, and the thimble is inserted into the water injection sleeve and penetrates through the supporting part; the top of thimble is equipped with a separation blade, the bottom of thimble is equipped with the stop part, the stop part is located the below of supporting part, the thimble can slide along the length direction of water injection sleeve.
In a further embodiment, the separation blade is the back taper structure, the top external diameter of separation blade is greater than its bottom external diameter, the top external diameter of separation blade is greater than the telescopic internal diameter of water injection, through designing the separation blade into the back taper structure, can make the water in the upper water tank of water injection water tank produce decurrent pressure to the separation blade, when the water injection was accomplished, water pressure in the upper water tank made the separation blade remove downwards and sealed the water injection sleeve to stop the water injection.
In a further embodiment, the water injection assembly further comprises an elastic piece, the elastic piece is sleeved on the thimble, the top of the elastic piece is fixedly connected with the bottom of the supporting part, and the bottom of the elastic piece is fixedly connected with the top of the blocking part; the elastic piece has a normal state and a compressed state, when the elastic piece is in the normal state, the length of the elastic piece is equal to the original length of the elastic piece, and the blocking piece is abutted to the water injection sleeve; when the elastic component is in compression state, the length of elastic component is less than its original length, separation blade rebound makes and leaves the gap between separation blade and the water injection sleeve, at automatic water injection in-process, the separation blade is by the air jack-up in the lower floor water tank, the elastic component can produce decurrent thrust to the stop part, thimble and separation blade have the trend of lapse, when stopping the water injection, under the thrust of elastic component, the separation blade produces downstream and seals the water injection sleeve, thereby when avoiding the water pressure of upper water tank not enough, the separation blade can't in time seal the water injection sleeve and lead to unable watered condition of stopping.
In a further embodiment, the resilient member is a cylindrical spring.
In further embodiment, the bottom of water injection casing is equipped with an annular portion of screwing up, the diameter of screwing up the portion is greater than the diameter of water injection casing, screws up the portion through setting up and can be convenient for operating personnel easily screw up the water injection subassembly to the screw thread through-hole of baffle in, promotes the convenience in the steam generator assembling process.
In a further embodiment, the water injection subassembly still includes the elastic washer, the elastic washer overlaps in the water injection casing, the elastic washer is located between screwing up portion and the baffle, can improve the water tightness between water injection casing and the baffle through setting up the elastic washer, avoids leading to the water in the upper water tank to leak to the condition that lower floor's water tank leads to lasting water injection because of the water tightness is not enough between water injection casing and the baffle.
In a further embodiment, the water injection mechanism further comprises a filter assembly, the filter assembly comprises a filter outer shell and a filter inner shell, the bottom of the filter inner shell is provided with a screwed part, the screwed part is provided with an external thread, the outer diameter of the water injection sleeve is smaller than the inner diameter of the water injection shell, the inner wall of the top of the water injection shell is provided with an internal thread, the external thread of the screwed part is matched with the internal thread of the water injection shell, the middle part of the filter inner shell is provided with a ferrule, the top of the filter inner shell protrudes upwards and extends into the filter outer shell, the filter outer shell is sleeved on the filter inner shell, the outer wall of the side surface of the filter outer shell is in interference fit with the inner wall of the ferrule, the outer wall of the filter inner shell and the inner wall of the filter outer shell are accommodated to form an accommodating, through setting up filtering component and filtering the impurity in the water injection water tank, avoid this impurity to get into in the steam water tank and deposit in the steam water tank, cause the condition of clearance difficulty.
Has the advantages that: the utility model provides a steam generator includes steam water tank, heating mechanism and water injection mechanism, and wherein water injection mechanism includes water injection water tank, water injection water pipe and water injection subassembly, and the water injection water tank includes upper water tank and lower floor's water tank, and the water injection subassembly includes water injection casing, thimble and separation blade. Through design water injection water piping connection steam water tank and water injection water tank, when the water level was not enough in the steam water tank, the air in the steam water tank passed through the water injection water pipe and got into the lower floor water tank of water injection water tank, and this air makes the water of the upper water tank of water injection water tank flow in lower floor water tank through water injection sleeve from the separation blade of bottom jack-up water injection subassembly, and according to the linker principle, the water in the lower floor water tank passes through water injection water pipe inflow steam water tank to realize steam water tank's automatic water injection. Compared with the prior art, the utility model provides an automatic steam generator of water injection can realize automatic water injection, and simple structure easily realizes and promotes simultaneously.
Drawings
Fig. 1 is a schematic structural view of the automatic water injection steam generator of the present invention.
Fig. 2 is a schematic structural view of a water injection assembly of the automatic water injection steam generator of the present invention.
Fig. 3 is a sectional view of a water injection assembly of the automatic water injection steam generator of the present invention.
Fig. 4 is an exploded view of the water injection assembly and the filter assembly of the automatic water injection steam generator of the present invention.
Fig. 5 is a schematic structural view of the filter housing of the automatic water injection steam generator of the present invention.
Fig. 6 is a schematic structural view of the inner filter casing of the automatic water injection steam generator according to the present invention.
Each of fig. 1 to 6 is labeled as: the steam water tank 10, the water inlet 11, the steam outlet 12, the heating mechanism 20, the water injection mechanism 30, the water injection tank 31, the upper water tank 311, the lower water tank 312, the partition 313, the water injection pipe 32, the water injection assembly 33, the water injection housing 331, the tightening part 3311, the thimble 332, the blocking part 3321, the water injection sleeve 333, the support part 3331, the blocking piece 334, the elastic piece 335, the elastic washer 336, the filter assembly 34, the filter outer housing 341, the filter inner housing 342, the screw part 3421, the ferrule 3422, and the filter hole 3423.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
Intensive research by researchers finds that the steam generator is widely applied and mainly comprises a box body and a heating mechanism arranged below the box body. In the steam generator working process, because the continuous evaporation of steam makes the water level in the box constantly reduce, consequently in time carry out the water injection to the box, and how to carry out the water injection to the box automatically prevents that the water level is low excessively to become a common problem in the water tank. Set up high temperature resistant level sensor and set up the water pump that supplies water to the water tank according to the water level data of this level sensor monitoring among the prior art usually in the water tank, this kind of setting makes level sensor have certain high temperature resistant requirement, and the structure is complicated simultaneously, very big increase steam generator's cost, be unfavorable for steam generator's popularization and application.
As shown in fig. 1, the present invention provides an automatic water injection steam generator, which comprises a steam water tank 10, a heating mechanism 20 and a water injection mechanism 30.
Specifically, be equipped with water inlet 11 and steam port 12 on the steam water tank 10, wherein, water inlet 11 is located the lateral wall of steam water tank 10, water inlet 11 is close to the bottom of steam water tank 10, water inlet 11 and steam water tank 10's bottom is equipped with certain distance, the distance of the bottom of water inlet 11 and steam water tank 10 is 5~10cm in this embodiment, among the practical application, the distance of the bottom of water inlet 11 and steam water tank 10 is confirmed to the speed of water consumption in size and the steam water tank 10 according to steam water tank 10, when guaranteeing that the water level is not enough in steam water tank 10, steam generator can be ensured to last work a period of time to the hydroenergy in the steam water tank 10. A steam port 12 is formed at the top of the steam water tank 10, and high-temperature steam generated in the steam water tank 10 is discharged through the steam port 12 to serve a user. The heating mechanism 20 is located below the steam water tank 10, and the steam water tank 10 is heated by the heating mechanism 20 so that water in the steam water tank 10 is evaporated to form steam. The types of the heating mechanism 20 are many, and generally include electric heating, gas heating, fuel oil heating, and the like, and a user selects an appropriate heating mechanism 20 according to a usage scenario of the steam generator, which will not be described in detail in this embodiment.
Referring to fig. 2 and 3, the water injection mechanism 30 in the present embodiment includes a water injection tank 31, a water injection pipe 32, and a water injection assembly 33. The water filling tank 31 includes an upper tank 311 and a lower tank 312, a partition 313 is disposed between the upper tank 311 and the lower tank 312, and a screw through hole penetrating through the partition 313 is formed in the middle of the partition 313. The water inlet 11 of the steam water tank 10 is communicated with the lower water tank 312 through the water injection pipe 32 to form a communicating vessel, that is, one end of the water injection pipe 32 is communicated with the water inlet pipe of the steam water tank 10, and the other end of the water injection pipe 32 is communicated with the lower water tank 312. The water injection assembly 33 in this embodiment includes a cylindrical water injection housing 331 and a needle 332. Specifically, the outer wall of the top of the water injection shell 331 is provided with external threads, and the water injection shell 331 is connected with the threaded through hole on the partition 313 in a matching manner. A water injection sleeve 333 is arranged in the water injection shell 331, the outer diameter of the water injection sleeve 333 is smaller than the inner diameter of the water injection shell 331, the water injection shell 331 and the water injection sleeve 333 are coaxially arranged, and the outer wall of the side surface of the water injection sleeve 333 is fixedly connected with the inner wall of the side surface of the water injection shell 331. The inner wall of the water injection sleeve 333 is fixedly connected with a support part 3331, and the support part 3331 is provided with a through hole so that water in the upper water tank 311 can flow into the lower water tank 312 through the water injection sleeve 333. The thimble 332 is inserted into the water injection sleeve 333 and vertically penetrates the support part 3331. The top of the thimble 332 is provided with a blocking piece 334, the bottom of the thimble 332 is provided with a blocking part 3321, the blocking part 3321 is located below the supporting part 3331, the thimble 332 can slide up and down along the length direction of the water injection sleeve 333, when the thimble 332 moves downwards for a certain distance, the blocking piece 334 is in contact with the top of the water injection sleeve 333 to prevent the thimble 332 from further moving downwards, and when the thimble 332 moves upwards for a certain distance, the blocking part 3321 is in contact with the supporting part 3331 to prevent the thimble 332 from further moving upwards.
In a further embodiment, in conjunction with fig. 2 and 3, the baffle 334 is of an inverted cone configuration, i.e., the outer diameter of the top portion of the baffle 334 is greater than the outer diameter of the bottom portion thereof. Meanwhile, the top outer diameter of the baffle 334 is larger than the inner diameter of the water injection sleeve 333. When air is accumulated in the lower water tank 312, the air can jack the blocking piece 334 through the water injection sleeve 333 to enable the thimble 332 to move upwards, water in the upper water tank 311 flows into the lower water tank 312 through a gap between the blocking piece 334 and the water injection sleeve 333, and because the lower water tank 312, the water injection pipe 32 and the steam water tank 10 form a communicating vessel, water can be added into the steam water tank 10 according to the principle of the communicating vessel. When the air in the lower water tank 312 completely enters the upper water tank 311 through the water injection sleeve 333, the water in the upper water tank 311 generates a downward pressure on the baffle 334 to move the baffle 334 downward and seal the water injection sleeve 333, and the water in the upper water tank 311 stops flowing into the lower water tank 312 to stop water injection.
Referring to fig. 2 and 3, during the automatic water filling process of the steam generator, the water level in the upper water tank 311 continuously drops, and the pressure of the water in the upper water tank 311 on the baffle 334 gradually decreases, so that as the water level in the upper water tank 311 gradually decreases, the water tightness between the baffle 334 and the water injection sleeve 333 also decreases, and even the water cannot be stopped because the baffle 334 cannot seal the water injection sleeve 333. Therefore, in a further embodiment, the water injection assembly 33 further comprises a resilient member 335, the resilient member 335 is sleeved on the thimble 332, and the top of the resilient member 335 is fixedly connected to the bottom of the supporting portion 3331, and the bottom of the resilient member 335 is fixedly connected to the top of the blocking portion 3321. In the process of adding water and stopping adding water, the elastic element 335 has a normal state and a contracted state along with the movement of the thimble 332 driven by the blocking piece 334, when the elastic element 335 is in the normal state, the length of the elastic element 335 is equal to the original length, the blocking piece 334 is abutted against the water injection sleeve 333, and the water in the upper water tank 311 cannot flow into the lower water tank 312. When the elastic member 335 is in a contracted state, the length of the elastic member 335 is smaller than the original length, the blocking piece 334 moves upward and drives the thimble 332 to move upward, the distance between the supporting portion 3331 and the blocking portion 3321 is reduced, so that the elastic member 335 is pressed, a gap is formed between the blocking piece 334 and the water injection sleeve 333, and water in the upper water tank 311 can flow into the lower water tank 312, so that automatic water injection is realized. During the automatic water filling process, the blocking plate 334 is lifted by the air in the lower water tank 312, so that the elastic member 335 is compressed, at this time, the elastic member 335 generates a downward pushing force on the blocking portion 3321, so that the spike 332 has a downward moving tendency, and when the water filling process is finished, the elastic member 335 pushes the spike 332 to move downward so that the blocking plate 334 seals the water filling sleeve 333, thereby stopping the water filling process. In this process, even if the water pressure in the upper water tank 311 is insufficient, the blocking piece 334 can seal the water injection sleeve 333 under the action of the elastic element 335, so that the water injection is stopped, and the situation that the blocking piece 334 cannot seal the water injection sleeve 333 due to the insufficient water pressure in the upper water tank 311 is avoided. The elastic member 335 in this embodiment is a cylinder spring commonly available on the market, and since the cylinder spring is low in price and easily available, the manufacturing cost of the steam generator can be reduced. Of course, other elastic members 335 may be used in practice, such as rubber sleeves and the like.
Referring to fig. 2, since the water filling case 331 is screw-coupled to the screw through hole of the partition 313, the operation is very inconvenient if a power tool or a wrench is used because the space in the lower water tank 312 is limited during the assembly of the steam generator. Therefore, in order to improve convenience in the assembly of the steam generator, in a further embodiment, the bottom of the water filling case 331 is provided with an annular tightening part 3311, and the diameter of the tightening part 3311 is greater than that of the water filling case 331. During the assembly process, the operator can easily screw the water injection assembly 33 into the threaded through-hole of the partition 313 by manually screwing the screwing part 3311.
Since the water filling case 331 is screw-coupled to the partition 313, there is a case where water can be filled with water insufficiently from the partition 313, which may cause water in the upper tank 311 to be continuously leaked into the lower tank 312, thereby causing a continuous water filling. Therefore, referring to fig. 3 and 4, in a further embodiment, the water filling assembly 33 further includes an elastic washer 336, the elastic washer 336 is inserted into the water filling case 331, and the elastic washer 336 is disposed between the tightening part 3311 and the partition 313, and the elastic washer 336 is pressed to deform to seal a gap between the water filling case 331 and the partition 313 during the screw through-hole coupling of the water filling case 331 and the partition 313, thereby improving water tightness between the water filling case 331 and the partition 313 and preventing water in the upper tank 311 from leaking into the lower tank 312.
In a further embodiment, with reference to fig. 1, 4, 5 and 6, the water injection mechanism 30 further comprises a filter assembly 34. Specifically, the filter assembly 34 includes an outer filter housing 341 and an inner filter housing 342. Wherein the bottom of the inner filter shell 342 is provided with a screw connection part 3421, and the screw connection part 3421 is provided with an external thread. In addition, the outer diameter of the water injection sleeve 333 in this embodiment is smaller than the inner diameter of the water injection housing 331, and the inner wall of the top of the water injection housing 331 is provided with an internal thread, and the screw-connection part 3421 of the filter inner housing 342 is fitted with the internal thread of the water injection housing 331. The middle part of the inner filtering shell 342 is provided with a ferrule 3422, the top of the inner filtering shell 342 protrudes upwards and extends into the inner filtering shell 341, the outer filtering shell 341 is sleeved on the inner filtering shell 342, and the outside of the side surface of the outer filtering shell 341 is in interference fit with the inner wall of the ferrule 3422, so that the outer filtering shell 341 is connected with the inner filtering shell 342 in a matching way, the inner wall of the outer filtering shell 341 and the outer wall of the inner filtering shell 342 are contained to form an accommodating part, and the accommodating part is filled with filtering materials. Meanwhile, the filtering outer shell 341 and the filtering inner shell 342 are both provided with a plurality of filtering holes 3423. When the steam generator automatically adds water, the water in the upper water tank 311 is first filtered by the filter assembly 34 and then flows into the lower water tank 312 through the water injection sleeve 333, and flows into the steam water tank 10 through the water injection pipe 32 to complete water injection. And the filtering material in the filtering component 34 can filter impurities in the upper water tank 311, so that the impurities are prevented from entering the steam water tank 10 to generate deposition, and the cleaning difficulty is increased. The filter material filled in the containing part can be selected in various ways according to actual requirements, for example, activated carbon can be filled, insoluble impurities in water can be adsorbed by utilizing a porous structure of the activated carbon, and the filter material is selected according to the requirements in actual application.
The working principle is as follows: in the working process of the steam generator, the heating mechanism 20 heats the steam water tank 10, the water in the steam water tank 10 is heated to generate high-temperature steam, and simultaneously the water amount in the steam water tank 10 is continuously reduced, when the water level in the steam water tank 10 is lower than the water injection pipe 32, the air in the steam water tank 10 enters the lower water tank 312 of the water injection water tank 31 through the water injection pipe 32, the air entering the lower water tank 312 upwards jacks up the baffle 334 through the water injection sleeve 333, so that the water in the upper water tank 311 flows into the lower water tank 312, because the steam water tank 10, the water injection pipe 32 and the lower water tank 312 form a communicating vessel, according to the principle of the communicating vessel, when the water level in the lower water tank 312 rises, the water in the lower water tank 312 flows into the steam water tank 10 to realize the automatic water injection of the steam water tank 10, when the water level in the steam water tank 10 is higher than the water injection pipe 32, the air in the lower water tank 312, the stopper 334 moves downward under the water pressure of the upper tank 311 to close the water filling socket 333, and the water in the upper tank 311 stops flowing into the lower tank 312, thereby stopping the water filling. Compared with the prior art, the utility model provides an automatic steam generator of water injection can realize automatic water injection, and simple structure easily realizes and promotes simultaneously.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An automatic water injection steam generator, comprising:
the steam water tank is provided with a water inlet and a steam port, the water inlet is arranged at one end of the side wall of the steam water tank close to the bottom, and the steam port is arranged at the top of the steam water tank;
the heating mechanism is arranged below the steam water tank and is used for heating the steam water tank;
the water injection mechanism comprises a water injection water tank, a water injection pipe and a water injection assembly, wherein the water injection pipe is used for connecting the water injection water tank with the steam water tank, the water injection assembly is arranged in the water injection water tank, the water injection water tank comprises an upper water tank and a lower water tank, a partition plate is arranged between the upper water tank and the lower water tank, and a threaded through hole is formed in the middle of the partition plate; one end of the water injection pipe is communicated with a water inlet of the steam water tank, and the other end of the water injection pipe is communicated with the lower-layer water tank; the water injection assembly comprises a cylindrical water injection shell and a thimble inserted into the water injection shell, wherein an external thread is arranged on the outer wall of the top of the water injection shell, the water injection shell is in threaded connection with the threaded through hole, a water injection sleeve is coaxially arranged in the water injection shell, the water injection sleeve is fixedly connected with the water injection shell, a supporting part is fixedly connected to the inner wall of the water injection sleeve, and the thimble is inserted into the water injection sleeve and penetrates through the supporting part; the top of thimble is equipped with a separation blade, the bottom of thimble is equipped with the stop part, the stop part is located the below of supporting part, the thimble can slide along the length direction of water injection sleeve.
2. The steam generator of claim 1, wherein the baffle is an inverted cone-shaped structure, the outer diameter of the top of the baffle is larger than the outer diameter of the bottom of the baffle, and the outer diameter of the top of the baffle is larger than the inner diameter of the water injection sleeve.
3. The steam generator of claim 1, wherein the water injection assembly further comprises an elastic member, the elastic member is sleeved on the thimble, the top of the elastic member is fixedly connected with the bottom of the supporting portion, and the bottom of the elastic member is fixedly connected with the top of the blocking portion; the elastic piece has a normal state and a compressed state, when the elastic piece is in the normal state, the length of the elastic piece is equal to the original length of the elastic piece, and the blocking piece is abutted to the water injection sleeve; when the elastic part is in a compressed state, the length of the elastic part is smaller than the original length of the elastic part, and the separation blade moves upwards to enable a gap to be reserved between the separation blade and the water injection sleeve.
4. The steam generator of claim 3, wherein the resilient member is a cylindrical spring.
5. The steam generator of claim 1, wherein the water filling housing is provided at a bottom thereof with an annular tightening part having a diameter greater than that of the water filling housing.
6. The steam generator of claim 5, wherein the water injection assembly further comprises a resilient gasket sleeved to the water injection housing, the resilient gasket being disposed between the tightening part and the separator plate.
7. The steam generator according to any one of claims 1 to 6, wherein the water injection mechanism further comprises a filter assembly, the filter assembly comprises a filter outer shell and a filter inner shell, the bottom of the filter inner shell is provided with a screw joint part, the screw joint part is provided with an external thread, the external diameter of the water injection sleeve is smaller than the internal diameter of the water injection shell, the inner wall of the top of the water injection shell is provided with an internal thread, the external thread of the screw joint part is matched with the internal thread of the water injection shell, the middle part of the filter inner shell is provided with a ferrule, the top of the filter inner shell protrudes upwards and extends into the filter outer shell, the filter outer shell is sleeved on the filter inner shell, the outer wall of the side surface of the filter outer shell is in interference fit with the inner wall of the ferrule, the outer wall of the filter inner shell and, and the filtering outer shell and the filtering inner shell are both provided with a plurality of filtering holes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020118492.5U CN211875974U (en) | 2020-01-19 | 2020-01-19 | Automatic steam generator of water injection |
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| CN202020118492.5U CN211875974U (en) | 2020-01-19 | 2020-01-19 | Automatic steam generator of water injection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587297A (en) * | 2021-08-16 | 2021-11-02 | 珠海格力电器股份有限公司 | Humidifier |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587297A (en) * | 2021-08-16 | 2021-11-02 | 珠海格力电器股份有限公司 | Humidifier |
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