Deodorization system for efficient double-layer filler
By adopting double-layer filler structure and multi-stage filtration technology in the deodorizing device, the problem of large land and low efficiency of single-layer biofilter device is solved, and efficient deodorization and environmental protection are achieved.
Patent Information
- Application Number
- CN202420927876.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing single-layer biofiller deodorizing device covers a large area, has low working efficiency and consumes a large amount of electricity.
A deodorizing system using high-efficiency double-layer filler is composed of two biological deodorizing chambers arranged symmetrically up and down, respectively, with a first filler area and a second filler area, and is connected by a differential pressure gauge, and is combined with a chemical scrubber to perform multi-stage filtration and acid-base component degradation.
While ensuring deodorization efficiency, it can effectively reduce the equipment's floor area, improve the deodorization efficiency of odor, and avoid the pollution of acid and alkali gases to the environment.
Smart Images

Figure CN222624177U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of deodorization, in particular to a deodorization system with a high-efficiency double-layer filler. Background Art
[0002] Malodorous gases not only have a serious impact on the ecological environment, but also have great harm to human health, causing central nervous system disorders and lesions, and causing chronic and acute diseases. Pump station odor, pretreatment odor, and sludge treatment odor in urban sewage treatment plants all need to be collected and eliminated. Therefore, in the process of odor treatment, biological deodorization devices are often used to deodorize them.
[0003] How to effectively treat this type of malodorous gas is the top priority for my country's environmental improvement, which will help improve the recycling rate of my country's resources. The packing deodorization device is a device commonly used to treat malodorous gases. When the gas to be treated passes through the biological packing of the deodorization system, the odor molecules in it diffuse to the biofilm formed on the surface of the biological packing, and the microorganisms oxidize and decompose the odor molecules, thereby eliminating odor pollution.
[0004] In response to the problem of odor deodorization, the industry has conducted relevant research and design, such as a high-efficiency biological filler deodorization device. The exhaust gas passes through the rectifier filler layer so that the exhaust gas and the liquid are in more full and effective contact, and the humidity can reach 100%. Through the countercurrent humidification method, the humidified exhaust gas enters the biological deodorization unit through the air inlet duct at the upper end of the humidification unit under the action of power for biological filtration and deodorization.
[0005] However, although the above-mentioned prior art solves the problem of odor deodorization, since the deodorization device is a single-layer biological filler, the deodorization device occupies a large area, resulting in low working efficiency and high power consumption. Utility Model Content
[0006] The utility model is to overcome the technical problems existing in the prior art and is a deodorizing system with high efficiency double-layer fillers.
[0007] In order to solve the above technical problems, the technical solution of the utility model is as follows:
[0008] A deodorization system with high efficiency double-layer filler, comprising a plurality of biological deodorization devices, a plurality of chemical washing towers, a centrifugal fan and a discharge tower; the biological deodorization device is connected to the chemical washing tower through a pipeline, and the biological deodorization device and the chemical washing tower form a deodorization device; the plurality of deodorization devices are respectively connected to the discharge tower through a plurality of centrifugal fans;
[0009] The biological deodorization device comprises two biological deodorization chambers symmetrically arranged in an upper and lower direction, wherein a first filling area and a second filling area are arranged in the biological deodorization chamber; the first filling area and the second filling area are respectively located in the middle of the biological deodorization chamber; the first filling area and the second filling area are also connected to a differential pressure gauge.
[0010] Furthermore, a partition is provided between the first filling area and the second filling area, cavities are provided at the top and bottom of the biological deodorization chamber, and the first filling area is connected to the second filling area through the cavity at the bottom of the biological deodorization chamber.
[0011] Furthermore, a chemical filling area is provided in the middle of the chemical washing tower, and the chemical filling area divides the chemical washing tower into a top cavity and a bottom cavity.
[0012] Furthermore, the bottom cavity of the biological deodorization chamber above the biological deodorization device is communicated with the top cavity of the biological deodorization chamber below.
[0013] Preferably, the bottom cavity of the first filling area of the upper biological deodorization chamber is communicated with the top cavity of the first filling area of the lower biological deodorization chamber.
[0014] Furthermore, the biological deodorization chamber is connected to the bottom cavity of the chemical washing tower through a pipeline.
[0015] Preferably, the top cavity of the biological deodorization chamber is connected to the bottom cavity of the chemical washing tower through a pipeline.
[0016] Furthermore, the tops of the several chemical washing towers are connected to the discharge tower through a multi-head pipe; the branch pipes of the multi-head pipe are respectively connected to the tops of the several chemical washing towers, and the main pipes of the multi-head pipe are respectively connected to the discharge tower.
[0017] Preferably, the branch pipes of the multi-joint pipe are connected to the second filling area of the biological deodorization chamber.
[0018] Furthermore, the centrifugal fan includes a branch fan and a main fan; the branch fan is arranged between the branch pipes of the multi-head pipes to extract the odor treated by the chemical washing tower; the main fan is arranged between the main pipes of the multi-head pipes to transport the treated odor to the emission tower.
[0019] Furthermore, it also includes a chemical water tank; the chemical water tank is connected to the chemical washing tower through a pipeline and is used to maintain the pH value of the chemical filler area.
[0020] Furthermore, the differential pressure gauge is a U-shaped air pipe, one end of the U-shaped air pipe is sealed with polyurethane glue, and the other end is connected to the bottom of the packing area through an L-shaped quick connector.
[0021] Preferably, the filler area connected to the L-shaped quick connector includes a first filler area, a second filler area and a chemical filler area.
[0022] Furthermore, the differential pressure gauge is connected to one port of the L-shaped quick connector, and the other port of the L-shaped quick connector is sealed with polyurethane glue.
[0023] Preferably, a water column is injected into the U-shaped air pipe.
[0024] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:
[0025] ① A double-layer filler deodorization device is installed to effectively reduce the floor space of the equipment while ensuring the deodorization efficiency;
[0026] The utility model arranges the biological deodorization chamber containing fillers in a vertically symmetrical structure. When the odor enters the biological deodorization device, the odor flows in from the top of the first filler area of the upper biological deodorization chamber and the bottom of the first filler area of the lower biological deodorization chamber, and then flows in the cavity between the biological deodorization chambers arranged symmetrically from top to bottom, and flows through the top of the upper biological deodorization chamber and the bottom of the lower biological deodorization chamber respectively, and is deodorized and filtered through the second filler area respectively. The biological deodorization chambers arranged in a vertically symmetrical structure can simultaneously achieve filtering and deodorization, and can effectively reduce the floor space of the equipment while ensuring the deodorization efficiency. The multi-level fillers can also improve the deodorization efficiency of the odor.
[0027] The filtered odor gathered on one side of the biological deodorization chamber flows into the bottom of the chemical washing tower through a pipe. When the odor enters the chemical filler area, the chemical filler can also degrade and remove the acid and alkaline components of the odor and oxidize and reduce them to avoid acid and alkaline gases from polluting the environment.
[0028] ② Connecting the differential pressure gauge to the bottom of the packing area can effectively determine the flow of odor in the packing area;
[0029] The utility model arranges a U-shaped differential pressure gauge outside the packing device of the upper biological deodorization cavity, wherein one end of the U-shaped differential pressure gauge is parallel to the top cavity of the packing area, and the other end is connected to the bottom of the packing area through an L-shaped quick connector; when the pressure of the top cavity of the packing area is lower than the pressure of the bottom cavity, the odor in the bottom cavity of the packing area enters the top of the packing area through the packing area, thereby achieving odor deodorization. At this time, the water column of the port of the U-shaped differential pressure gauge connected to the bottom of the packing area is lower than that of the other port, and the circulation of the odor in the packing area can be judged by observing the water columns at both ends of the U-shaped differential pressure gauge;
[0030] Specifically, one end of the U-shaped differential pressure gauge is set at the bottom of the packing area, and the other end is parallel to the top cavity of the packing area. When the pressure of the top cavity of the packing area is inconsistent with the pressure of the bottom cavity, the odor can flow in the packing area. By observing the inconsistent height of the water column built into the U-shaped differential pressure gauge, the pressure difference between the top and bottom of the packing area can be judged.
[0031] ③ Connect the tops of several chemical scrubbers to the discharge tower through multi-head pipes and centrifugal fans to improve the discharge efficiency;
[0032] The utility model connects the branch pipes of the multi-connector with the tops of several chemical washing towers respectively, and arranges the branch pipe blower between the branch pipes of the multi-connector, so as to effectively extract the odor treated by the chemical washing tower; connects the main pipes of the multi-connector with the emission towers respectively, and arranges the main pipe blower between the main pipes of the multi-connector, so as to effectively transport the treated odor to the emission tower; through the "all-in-one" function of the multi-connector, the gases treated by several chemical washing towers can be connected to one emission tower, which can improve the production capacity of the deodorization system and uniformly discharge the odor, and at the same time can save the space occupied by the equipment and the equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0034] Figure 1 A top view of a deodorization system with a high-efficiency double-layer filler;
[0035] Figure 2 It is a front view of a deodorization system with a high-efficiency double-layer filler;
[0036] Figure 3 This is a cross-sectional view of a biological deodorization device;
[0037] Figure 4 It is a structural schematic diagram of a differential pressure gauge;
[0038] Figure 5 Schematic diagram of the flow of odor in the biological deodorization device and chemical scrubber.
[0039] Among them, 1. biological deodorization device; 101. biological deodorization chamber; 102. first filling area; 103. second filling area; 104. differential pressure gauge; 105. partition; 2. chemical washing tower; 201. chemical filling area; 3. centrifugal fan; 301. branch fan; 302. main fan; 4. discharge tower; 5. multi-head connecting pipe; 6. chemical water tank. DETAILED DESCRIPTION
[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the described embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0041] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0042] Example 1
[0043] like Figure 1-5 As shown, this embodiment discloses a deodorization system with high efficiency double-layer filler, comprising a plurality of biological deodorization devices 1, a plurality of chemical washing towers 2, a centrifugal fan 3 and a discharge tower 4; the biological deodorization device 1 is connected to the chemical washing tower 2 through a pipeline, and the biological deodorization device 1 and the chemical washing tower 2 form a deodorization device; the plurality of deodorization devices are connected to the discharge tower 4 through a plurality of centrifugal fans 3 respectively;
[0044] The biological deodorization device 1 includes two biological deodorization chambers 101 symmetrically arranged in an upper and lower manner, wherein a first filling area 102 and a second filling area 103 are provided in the biological deodorization chamber 101; the first filling area 102 and the second filling area 103 are respectively located in the middle of the biological deodorization chamber 101; the first filling area 102 and the second filling area 103 are also connected to a differential pressure gauge 104.
[0045] As a specific implementation, a partition 105 is provided between the first filling area 102 and the second filling area 103, and cavities are provided at the top and bottom of the biological deodorization chamber 101. The first filling area 102 is connected to the second filling area 103 through the cavity at the bottom of the biological deodorization chamber 101;
[0046] The bottom cavity of the biological deodorization chamber 101 located above the biological deodorization device 1 is communicated with the top cavity of the biological deodorization chamber 101 below.
[0047] When the odor is introduced into the biological deodorization device 1, the odor flows in from the top of the first filling area 102 of the upper biological deodorization chamber 101 and the bottom of the first filling area 102 of the lower biological deodorization chamber 101, and then flows in the cavity between the biological deodorization chambers 101 symmetrically arranged up and down, and flows through the top of the upper biological deodorization chamber 101 and the bottom of the lower biological deodorization chamber 101 respectively, and is deodorized and filtered through the second filling area 103 respectively. The biological deodorization chambers 101 arranged symmetrically up and down can achieve filtering and deodorization at the same time, while ensuring the deodorization efficiency, it can effectively reduce the floor space of the equipment, and the multi-stage fillers can also improve the deodorization efficiency of the odor.
[0048] As a specific implementation, a chemical filler area 201 is provided in the middle of the chemical scrubbing tower 2, and the chemical filler area 201 divides the chemical scrubbing tower 2 into a top cavity and a bottom cavity; the biological deodorization cavity 101 is connected to the bottom cavity of the chemical scrubbing tower 2 through a pipeline;
[0049] It also includes a chemical water tank 6 ; the chemical water tank 6 is connected to the chemical washing tower 2 through a pipeline, and is used to maintain the pH value of the chemical filler area 201 .
[0050] The filtered odor collected at one side of the biological deodorization chamber 101 flows into the bottom of the chemical scrubber 2 through a pipe. When the odor enters the chemical filler area 201, the chemical filler can also degrade and remove the acid and alkali components of the odor and oxidize and reduce them, thereby preventing the acid and alkali gases from polluting the environment.
[0051] Since the fillers filled with chemical substances in the chemical scrubber 2 are used to absorb the acid and alkali components of the odor, the fillers of these chemical substances need to maintain a certain pH value to ensure their effectiveness. If the pH value is too low or too high, the chemical filler area 201 will lose the effect of absorbing and degrading harmful gases. Therefore, in order to ensure the effectiveness of the filler, the chemical water tank 6 is connected to the chemical scrubber 2 through a pipeline, and the chemical agent sprayed into the chemical filler area 201 of the chemical scrubber 2 can be used to control its pH value to maintain the effectiveness of the filler.
[0052] When necessary, an on-off valve is added between the pipeline of the chemical water tank 6 and the chemical washing tower 2, and the on-off valve is opened at a fixed time to spray chemicals on the chemical filler area 201, thereby maintaining the pH value of the chemical filler area 201.
[0053] Example 2
[0054] like Figure 1-5As shown, this embodiment discloses a deodorization system with high efficiency double-layer filler, comprising a plurality of biological deodorization devices 1, a plurality of chemical washing towers 2, a centrifugal fan 3 and a discharge tower 4; the biological deodorization device 1 is connected to the chemical washing tower 2 through a pipeline, and the biological deodorization device 1 and the chemical washing tower 2 form a deodorization device; the plurality of deodorization devices are connected to the discharge tower 4 through a plurality of centrifugal fans 3 respectively;
[0055] The biological deodorization device 1 includes two biological deodorization chambers 101 symmetrically arranged in an upper and lower manner, wherein a first filling area 102 and a second filling area 103 are provided in the biological deodorization chamber 101; the first filling area 102 and the second filling area 103 are respectively located in the middle of the biological deodorization chamber 101; the first filling area 102 and the second filling area 103 are also connected to a differential pressure gauge 104.
[0056] As a specific implementation, the tops of several chemical washing towers 2 are connected to the discharge tower 4 through a multi-head pipe 5; the branch pipes of the multi-head pipe 5 are respectively connected to the tops of several chemical washing towers 2, and the main pipes of the multi-head pipe 5 are respectively connected to the discharge tower 4;
[0057] The centrifugal fan 3 includes a branch fan 301 and a main fan 302; the branch fan 301 is arranged between the branch pipes of the multi-head pipe 5, and is used to extract the odor treated by the chemical washing tower 2; the main fan 302 is arranged between the main pipes of the multi-head pipe 5, and is used to transport the treated odor to the emission tower 4.
[0058] Therefore, in the implementation of the present scheme, a U-shaped differential pressure gauge 104 is arranged outside the upper biological deodorization chamber 101, one end of the U-shaped differential pressure gauge 104 is parallel to the top cavity of the second filling area 103, and the other end is connected to the bottom of the second filling area 103 through an L-shaped quick connector; when the pressure of the top cavity of the second filling area 103 is lower than the pressure of the bottom cavity, the odor in the bottom cavity of the second filling area 103 enters the top of the second filling area 103 through the second filling area 103, thereby achieving odor deodorization. At this time, the water column at the port where the U-shaped differential pressure gauge 104 is connected to the bottom of the second filling area 103 is lower than that at the other port, and the flow of odor in the second filling area 103 can be judged by observing the water columns at both ends of the U-shaped differential pressure gauge 104;
[0059] Specifically, one end of the U-shaped differential pressure gauge 104 is set at the bottom of the packing area, and the other end is parallel to the top cavity of the packing area. When the pressure of the top cavity of the packing area is inconsistent with the pressure of the bottom cavity, the odor can flow in the packing area. By observing the inconsistent height of the water column built in the U-shaped differential pressure gauge 104, the pressure difference between the top and bottom of the packing area can be judged. The packing area includes a first packing area 102, a second packing area 103 and a chemical packing area 201. By observing the inconsistent height of the water column built in the U-shaped differential pressure gauge 104, the pressure difference between the top and bottom of the packing area can be effectively judged, thereby effectively judging the circulation of odor in the packing area.
[0060] Example 3
[0061] like Figure 1-5 As shown, this embodiment discloses a deodorization system with high efficiency double-layer filler, comprising a plurality of biological deodorization devices 1, a plurality of chemical washing towers 2, a centrifugal fan 3 and a discharge tower 4; the biological deodorization device 1 is connected to the chemical washing tower 2 through a pipeline, and the biological deodorization device 1 and the chemical washing tower 2 form a deodorization device; the plurality of deodorization devices are connected to the discharge tower 4 through a plurality of centrifugal fans 3 respectively;
[0062] The biological deodorization device 1 includes two biological deodorization chambers 101 symmetrically arranged in an upper and lower manner, wherein a first filling area 102 and a second filling area 103 are provided in the biological deodorization chamber 101; the first filling area 102 and the second filling area 103 are respectively located in the middle of the biological deodorization chamber 101; the first filling area 102 and the second filling area 103 are also connected to a differential pressure gauge 104.
[0063] As a specific implementation, the differential pressure gauge (104) is a U-shaped air pipe, one end of which is sealed with polyurethane glue, and the other end is connected to the bottom of the packing area through an L-shaped quick connector; the differential pressure gauge (104) is connected to one end of the L-shaped quick connector, and the other end of the L-shaped quick connector is sealed with polyurethane glue.
[0064] Therefore, in the implementation of the present scheme, by connecting the branch pipes of the multi-head pipe 5 with the tops of several chemical washing towers 2 respectively, and setting the branch pipe fan 301 between the branch pipes of the multi-head pipe 5, the odor treated by the chemical washing tower 2 can be effectively extracted, and the main pipes of the multi-head pipe 5 are connected to the emission tower 4 respectively, and the main pipe fan 302 is set between the main pipes of the multi-head pipe 5, so that the treated odor can be effectively transported to the emission tower 4. Through the "all-in-one" function of the multi-head pipe 5, the gases treated by several chemical washing towers 2 can be connected to the same emission tower 4, which can improve the production capacity of the deodorization system and uniformly discharge odor, while also saving the equipment's floor space and equipment costs.
[0065] How it works
[0066] When the odor enters the biological deodorization device 1, the odor flows in from the top of the first filler area 102 of the upper biological deodorization chamber 101 and the bottom of the first filler area 102 of the lower biological deodorization chamber 101, and then flows in the cavity between the biological deodorization chambers 101 symmetrically arranged up and down, respectively flows through the top of the upper biological deodorization chamber 101 and the bottom of the lower biological deodorization chamber 101, and respectively passes through the second filler area 103 for deodorization and filtration. The biological deodorization chambers 101 arranged symmetrically up and down can achieve filtering and deodorization at the same time, while ensuring the deodorization efficiency, it can effectively reduce the floor space of the equipment, and the multi-level fillers can also improve the deodorization efficiency of the odor;
[0067] The filtered odor gathered at one side of the biological deodorization chamber 101 flows into the bottom of the chemical washing tower 2 through a pipe. When the odor passes into the chemical filler area 201, the chemical filler can also degrade and remove the acid and alkaline components of the odor and oxidize and reduce them to avoid acid and alkaline gases from polluting the environment.
[0068] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. A deodorizing system with high efficiency double-layer filler, characterized in that: The invention comprises a plurality of biological deodorization devices (1), a plurality of chemical washing towers (2), a centrifugal fan (3) and a discharge tower (4); the biological deodorization device (1) is connected to the chemical washing tower (2) through a pipeline, and the biological deodorization device (1) and the chemical washing tower (2) form a deodorization device; the plurality of deodorization devices are respectively connected to the discharge tower (4) through a plurality of centrifugal fans (3); The biological deodorization device (1) comprises two biological deodorization chambers (101) symmetrically arranged in an upper and lower direction, wherein a first filling area (102) and a second filling area (103) are provided in the biological deodorization chamber (101); the first filling area (102) and the second filling area (103) are respectively located in the middle of the biological deodorization chamber (101); and the first filling area (102) and the second filling area (103) are also connected to a differential pressure gauge (104).
2. The deodorizing system with high efficiency double-layer filler according to claim 1 is characterized in that: A partition (105) is provided between the first filling area (102) and the second filling area (103), cavities are provided at the top and bottom of the biological deodorization chamber (101), and the first filling area (102) is connected to the second filling area (103) through the cavity at the bottom of the biological deodorization chamber (101).
3. The deodorizing system with high efficiency double-layer filler according to claim 1 is characterized in that: A chemical filling area (201) is provided in the middle of the chemical washing tower (2), and the chemical filling area (201) divides the chemical washing tower (2) into a top cavity and a bottom cavity.
4. The deodorizing system with high efficiency double-layer filler according to claim 1 is characterized in that: The bottom cavity of the biological deodorization chamber (101) located above the biological deodorization device (1) is communicated with the top cavity of the biological deodorization chamber (101) located below.
5. The deodorizing system with high efficiency double-layer filler according to claim 3 is characterized in that: The biological deodorization chamber (101) is connected to the bottom cavity of the chemical washing tower (2) through a pipeline.
6. The deodorizing system with high efficiency double-layer filler according to claim 1 is characterized in that: The tops of the plurality of chemical washing towers (2) are connected to the discharge tower (4) through a multi-head pipe (5); the branch pipes of the multi-head pipe (5) are respectively connected to the tops of the plurality of chemical washing towers (2), and the main pipes of the multi-head pipe (5) are respectively connected to the discharge tower (4).
7. The deodorizing system with high efficiency double-layer filler according to claim 6 is characterized in that: The centrifugal fan (3) comprises a branch fan (301) and a main fan (302); the branch fan (301) is arranged between the branch pipes of the multi-head pipe (5) and is used to extract the odor treated by the chemical washing tower (2); the main fan (302) is arranged between the main pipes of the multi-head pipe (5) and is used to transport the treated odor to the emission tower (4).
8. The deodorizing system with high efficiency double-layer filler according to claim 3 is characterized in that: It also includes a chemical water tank (6); the chemical water tank (6) is connected to the chemical washing tower (2) through a pipeline and is used to maintain the pH value of the chemical filler area (201).
9. The deodorizing system with high efficiency double-layer filler according to claim 1, characterized in that: The differential pressure gauge (104) is a U-shaped air pipe, one end of which is sealed with polyurethane glue, and the other end is connected to the bottom of the packing area through an L-shaped quick connector.
10. The deodorizing system with high efficiency double-layer filler according to claim 9, characterized in that: The differential pressure gauge (104) is connected to one end of the L-shaped quick connector, and the other end of the L-shaped quick connector is sealed with polyurethane glue.