CN216977053U - Air interchanger of underground closed space - Google Patents
Air interchanger of underground closed space Download PDFInfo
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- CN216977053U CN216977053U CN202123101787.5U CN202123101787U CN216977053U CN 216977053 U CN216977053 U CN 216977053U CN 202123101787 U CN202123101787 U CN 202123101787U CN 216977053 U CN216977053 U CN 216977053U
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Abstract
The utility model provides a ventilation device for an underground closed space, which comprises: a non-powered ventilation assembly and a forced ventilation assembly. The unpowered air exchange component comprises a ventilation pipeline, a unpowered fan and an air inlet pipe, and the forced air exchange component comprises a powered fan, a first connecting pipe, a second connecting pipe and an air filter. The ventilation device for the underground closed space, provided by the utility model, is simple and reliable, has strong practicability, can not cause serious consequences such as suffocation, poisoning and the like when personnel enter or fall into the closed space, and the arranged unpowered ventilation component does not need an additional power supply when working, so that the installation cost is low, and the later maintenance and use cost is low; the air-conditioning system is suitable for underground closed space with the depth of more than meters, and the unpowered fan and the air inlet pipe can be added according to the size of the space, so that the air exchange effect can be ensured; the power fan can be used for forcibly ventilating the underground closed space, and the air in the space can be ensured to meet the maintenance operation such as small welding.
Description
Technical Field
The utility model relates to the technical field of buildings, in particular to a ventilation device for an underground closed space.
Background
Because of the closed space such as city underground pipe network well, blowoff well, heat transfer well, shallow well, underground storing room is in airtight state for a long time because of factors such as safety, the manhole entry is between 60-80cm, needs personnel to enter into closed space through the manhole entry on the irregular basis and overhauls the operation, because the inside circulation of air of closed space is restricted, leads to not taking a breath or taking a breath not smooth, and the trade gets into safe unable assurance, exists and causes serious potential safety hazard such as suffocation, poisoning.
To this end, a ventilation device for an underground enclosed space is proposed.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in order to solve the problems occurring in the background art, and an object of the present invention is to provide a ventilation apparatus for an underground enclosed space.
The specific technical scheme is as follows:
a ventilation device for an underground enclosed space, comprising:
unpowered subassembly of taking a breath, unpowered subassembly of taking a breath includes air pipe, unpowered fan and air-supply line, air pipe fixed mounting is at the top in secret airtight space, just air pipe inside with the inside in secret airtight space is linked together, air pipe keeps away from the one end in secret airtight space extends to ground upper portion, unpowered fan fixed mounting is in air pipe is located the one end tip on ground upper portion, air-supply line fixed mounting be in the top in secret airtight space, just the inside of air-supply line with the inside in secret airtight space is linked together, the air-supply line is kept away from the one end in secret airtight space extends to ground upper portion, just the air-supply line still is linked together with the air on ground upper portion.
As a preferable scheme of the present invention, one end of the air inlet pipe located above the ground is bent downward.
As a preferable scheme of the present invention, the present invention further includes a forced ventilation assembly, the forced ventilation assembly includes a power fan, a first connection pipe, a second connection pipe, and an air filter, the power fan is fixedly installed on the upper portion of the ground, one end of the first connection pipe is communicated with an air outlet of the power fan, and the other end of the first connection pipe is communicated with the inside of the underground enclosed space, one end of the second connection pipe is communicated with an air inlet of the power fan, and the air filter is fixedly installed at the other end of the second connection pipe.
As a preferable scheme of the present invention, the air filter includes a cylindrical housing, an annular fixing ring, and an air filter element, the cylindrical housing is vertically disposed, the bottom end of the cylindrical housing is an open end, the upper end of the cylindrical housing is a closed end, a through hole communicated with the second connecting pipe is formed in an end wall of the closed end of the cylindrical housing, the annular fixing ring is screwed to an end portion of the open end of the cylindrical housing, and the air filter element is enclosed inside the cylindrical housing through the annular fixing ring.
As a preferable scheme of the present invention, the air filter element is a cylindrical air filter element, one end of the air filter element is an open end, the other end of the air filter element is a closed end, the open end of the air filter element is disposed toward the open end of the cylindrical housing, and the closed end of the air filter element is attached to the closed section of the cylindrical housing.
As a preferable scheme of the present invention, an annular retainer ring is fixedly mounted at an end portion of an opening end of the air filter element, an outer end surface of the annular retainer ring abuts against an inner end surface of the annular retainer ring, and the inner end surface of the annular retainer ring is of an inclined surface structure.
As a preferable scheme of the present invention, the air filter further includes a trumpet-shaped shield fixedly sleeved outside the bottom end of the cylindrical housing.
The utility model has the following beneficial effects:
1. the ventilation device for the underground closed space is simple and reliable, has strong practicability, and can not cause serious consequences such as suffocation, poisoning and the like when people enter or fall into the closed space;
2. the air interchanger of the underground closed space does not need an additional power supply when the unpowered air interchanger component works, and has low installation cost, low later maintenance cost and low use cost;
3. the air interchanger of the underground closed space is suitable for the underground closed space with the depth of more than meters, and can increase the unpowered fan and the air inlet pipe according to the size of the space, thereby ensuring the air interchanging effect;
4. this breather in secret confined space can also utilize power fan to take a breath for secret confined space by force, can ensure that the space air satisfies maintenance operations such as small-size welding.
Drawings
Fig. 1 is a schematic structural view of a ventilation apparatus for an underground enclosed space according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure taken along line B-B in FIG. 1;
FIG. 3 is a schematic view of the structure taken along line C-C in FIG. 1;
FIG. 4 is a first schematic structural view of an air filter of the ventilation apparatus for an underground enclosed space according to the present invention;
fig. 5 is a second schematic structural view of an air filter of the ventilation apparatus for an underground enclosed space according to the embodiment of the present invention;
fig. 6 is a third schematic structural view of an air filter of a ventilation apparatus for an underground enclosed space according to an embodiment of the present invention;
fig. 7 is a fourth schematic structural view of an air filter of a ventilation apparatus for an underground enclosed space according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of an air filter of the ventilation apparatus for an underground enclosed space according to an embodiment of the present invention;
fig. 9 is an enlarged schematic view of a partial view a of fig. 8.
In the drawings: 1. an underground enclosed space; 2. an air inlet pipe; 3. an unpowered fan; 4. a ventilation duct; 5. a power fan; 6. a first connecting pipe; 7. a second connecting pipe; 8. an air filter; 801. a cylindrical housing; 802. an annular retainer ring; 803. an air filter element; 804. a through hole; 805. an annular retainer ring; 806. a horn-shaped shield.
Detailed Description
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The ventilation device for the underground closed space provided by the embodiment of the utility model, as shown in fig. 1-9, comprises: unpowered subassembly of taking a breath, unpowered subassembly of taking a breath includes air pipe 4, unpowered fan 3 and air-supply line 2, air pipe 4 fixed mounting is at the top of secret airtight space 1, and air pipe 4's inside is linked together with the inside of secret airtight space 1, air pipe 4 keeps away from secret airtight space 1 one end and extends to subaerial upper portion, unpowered fan 3 fixed mounting is located subaerial upper portion one end tip at air pipe 4, air-supply line 2 fixed mounting is at the top of secret airtight space 1, and the inside of air-supply line 2 is linked together with the inside of secret airtight space 1, the one end that secret airtight space 1 was kept away from to air-supply line 2 extends to subaerial upper portion, and air-supply line 2 still is linked together with the air on subaerial upper portion.
The ventilation device for the underground closed space adopting the technical scheme mainly comprises a ventilation pipeline 4, an unpowered fan 3 and an air inlet pipe 2, wherein air heat convection is formed by utilizing the temperature difference between the underground closed space 1 and the ground, and ground air drives the unpowered fan 3 to operate to draw out air in the underground closed space 1, and the air pressure in the underground closed space 1 is reduced, so that the air on the ground can be pressed into the bottom of the underground closed space 1 from the air inlet pipe 2 by the atmospheric pressure for circulating ventilation, and the air in the underground closed space 1 flows to achieve the purpose of ventilation.
In conclusion, the ventilation device for the underground closed space has the following advantages:
1. the ventilation device for the underground closed space is simple and reliable, has strong practicability, and can not cause serious consequences such as suffocation, poisoning and the like when people enter or fall into the closed space;
2. the air interchanger of the underground closed space does not need an additional power supply, has low installation cost and low later maintenance and use cost;
3. this breather in secret confined space is applicable to the secret confined space of degree of depth more than 2 meters, can need increase unpowered fan 3 and air-supply line 2 according to the size in space, can ensure the effect of taking a breath.
Specifically, in the present embodiment, in order to prevent rainwater from entering the underground closed space 1 through the air inlet pipe 2, one end of the air inlet pipe 2, which is located above the ground, is bent downward.
Specifically, in this embodiment, this breather in secret confined space, still include the subassembly of forcing to take a breath, the subassembly of forcing to take a breath includes power fan 5, first connecting pipe 6, second connecting pipe 7 and air cleaner 8, power fan 5 fixed mounting is on ground upper portion, the one end of first connecting pipe 6 is linked together with power fan 5's air outlet, and the other end of first connecting pipe 6 is linked together with the inside of secret confined space 1, the one end of second connecting pipe 7 is linked together with power fan 5's air intake, air cleaner 8 fixed mounting is at the other end of second connecting pipe 7.
The subassembly of taking a breath by force that sets up is mainly by power fan 5, first connecting pipe 6, second connecting pipe 7 and air cleaner 8 are constituteed, usable power fan 5 takes a breath for secret airtight space 1 by force, can ensure that the space air satisfies maintenance operations such as small-size welding, wherein, air cleaner 8 can prevent that power fan 5 from inhaling inside secret airtight space 1 with the dust in the air, the inside air quality of secret airtight space 1 can be guaranteed to the part, can also prevent that the inside equipment of secret airtight space 1 from being by dust pollution.
Specifically, in this embodiment, the air filter 8 includes a cylindrical housing 801, an annular fixing ring 802 and an air filter element 803, the cylindrical housing 801 is vertically disposed, the bottom end of the cylindrical housing 801 is an open end, the upper end of the cylindrical housing 801 is a closed end, a through hole 804 communicated with the second connecting pipe 7 is formed in the end wall of the closed end of the cylindrical housing 801, the annular fixing ring 802 is screwed on the end portion of the open end of the cylindrical housing 801, and the air filter element 803 is sealed inside the cylindrical housing 801 through the annular fixing ring 802.
The air cleaner 8 of setting mainly comprises cylindrical shell 801, annular retainer plate 802 and air filter element 803, and wherein, the vertical setting of cylindrical shell 801 for air cleaner 8 possesses the performance to air filter, still has the function of preventing to be drenched by the rainwater simultaneously, can avoid air filter element 803 to be drenched by the rainwater and influence air permeability.
Specifically, in this embodiment, the air filter element 803 is a cylindrical air filter element, one end of the air filter element 803 is an open end, the other end of the air filter element 803 is a closed end, the open end of the air filter element 803 is arranged towards the open end of the cylindrical shell 801, and the closed end of the air filter element 803 is attached to the closed section of the cylindrical shell 801, so that dust inside the air filter element 803 can automatically drop under the action of gravity when the power fan 5 stops working, and the service life of the air filter element 803 is ensured.
Specifically, in this embodiment, an annular retaining ring 805 is fixedly mounted at an end portion of an opening end of the air filter element 803, an outer end surface of the annular retaining ring 805 abuts against an inner end surface of the annular retaining ring 802, the inner end surface of the annular retaining ring 805 is of an inclined surface structure, and the annular retaining ring 805 is used for being matched with the annular retaining ring 802 to fix the air filter element 803, so that the air filter element 803 can be prevented from falling off from the inside of the cylindrical shell 801.
Specifically, in this embodiment, in order to further increase the rainproof performance of the air filter 8, the air filter 8 further includes a trumpet-shaped shield 806, the trumpet-shaped shield 806 is fixedly sleeved outside the bottom end of the cylindrical shell 801, and the trumpet-shaped shield 806 can shield the bottom end of the cylindrical shell 801, so as to prevent rainwater from entering the bottom end of the cylindrical shell 801.
In summary, the ventilation device for the underground enclosed space provided by the embodiment has the following advantages:
1. the ventilation device for the underground closed space is simple and reliable, has strong practicability, and can not cause serious consequences such as suffocation, poisoning and the like when people enter or fall into the closed space;
2. the air interchanger of the underground closed space does not need an additional power supply when the unpowered air interchanger component works, and has low installation cost, low later maintenance cost and low use cost;
3. the air interchanger of the underground closed space is suitable for the underground closed space with the depth of more than 2 meters, and the unpowered fan 3 and the air inlet pipe 2 can be added according to the size of the space, so that the air interchanging effect can be ensured;
4. this breather in secret confined space can also utilize power fan 5 to take a breath for secret confined space 1 by force, can ensure that the space air satisfies maintenance operations such as small-size welding.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.
Claims (7)
1. An air interchanger for an underground enclosed space, comprising:
unpowered subassembly of taking a breath, unpowered subassembly of taking a breath includes air pipe (4), unpowered fan (3) and air-supply line (2), air pipe (4) fixed mounting is at the top in secret airtight space (1), just the inside of air pipe (4) with the inside in secret airtight space (1) is linked together, air pipe (4) are kept away from the one end in secret airtight space (1) extends to ground upper portion, unpowered fan (3) fixed mounting be in air pipe (4) are located the one end tip on ground upper portion, air-supply line (2) fixed mounting be in the top in secret airtight space (1), just the inside of air-supply line (2) with the inside in secret airtight space (1) is linked together, air-supply line (2) are kept away from the one end in secret airtight space (1) extends to ground upper portion, and the air inlet pipe (2) is also communicated with the air at the upper part of the ground.
2. An underground enclosure as claimed in claim 1 wherein the air inlet duct (2) is bent downwardly at its end above the ground.
3. The ventilation apparatus for the underground enclosed space according to claim 1, further comprising a forced ventilation assembly, wherein the forced ventilation assembly comprises a power fan (5), a first connecting pipe (6), a second connecting pipe (7) and an air filter (8), the power fan (5) is fixedly installed on the upper portion of the ground, one end of the first connecting pipe (6) is communicated with an air outlet of the power fan (5), the other end of the first connecting pipe (6) is communicated with the inside of the underground enclosed space (1), one end of the second connecting pipe (7) is communicated with an air inlet of the power fan (5), and the air filter (8) is fixedly installed at the other end of the second connecting pipe (7).
4. The ventilation apparatus for the underground enclosed space according to claim 3, wherein the air filter (8) comprises a cylindrical housing (801), an annular fixing ring (802) and an air filter element (803), the cylindrical housing (801) is vertically arranged, the bottom end of the cylindrical housing (801) is an open end, the upper end of the cylindrical housing (801) is a closed end, a through hole (804) communicated with the second connecting pipe (7) is formed in the end wall of the closed end of the cylindrical housing (801), the annular fixing ring (802) is screwed on the end part of the open end of the cylindrical housing (801), and the air filter element (803) is sealed inside the cylindrical housing (801) through the annular fixing ring (802).
5. An underground confined space air-exchange apparatus as claimed in claim 4 wherein the air filter element (803) is a cylindrical air filter element, one end of the air filter element (803) is an open end and the other end of the air filter element (803) is a closed end, the open end of the air filter element (803) is disposed towards the open end of the cylindrical casing (801) and the closed end of the air filter element (803) is attached to the closed section of the cylindrical casing (801).
6. An air interchanger of an underground closed space according to claim 5, wherein an annular retainer ring (805) is fixedly mounted at an open end of the air filter element (803), an outer end surface of the annular retainer ring (805) is abutted against an inner end surface of the annular retainer ring (802), and the inner end surface of the annular retainer ring (805) is of a slope structure.
7. An underground enclosure as claimed in claim 4 wherein the air filter (8) further comprises a flared shroud (806), the flared shroud (806) being fixedly mounted over the bottom end of the cylindrical housing (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123101787.5U CN216977053U (en) | 2021-12-06 | 2021-12-06 | Air interchanger of underground closed space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123101787.5U CN216977053U (en) | 2021-12-06 | 2021-12-06 | Air interchanger of underground closed space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216977053U true CN216977053U (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123101787.5U Active CN216977053U (en) | 2021-12-06 | 2021-12-06 | Air interchanger of underground closed space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216977053U (en) |
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2021
- 2021-12-06 CN CN202123101787.5U patent/CN216977053U/en active Active
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