KR100950100B1 - Malodor reducing system for drain pipe - Google Patents

Abstract

PURPOSE: An odor reduction system for a sewer conduit is provided to monitor odor around a rain gutter and a sewer conduit and reduce the odor. CONSTITUTION: An odor reduction system(S) for a sewer conduit comprises an upstream cleansing water input unit(10) and a downstream odor sensor(20). The upstream cleansing water input unit is installed around an upper stream manhole(M1) or a rain gutter. The downstream odor sensor is installed on the lower manhole(M2) or the rain gutter.

Description

Odor reduction system for sewage pipes {MALODOR REDUCING SYSTEM FOR DRAIN PIPE}

The present invention relates to a system for reducing malodor by discharging the washing water from the washing water inlet provided upstream when the malodor is generated in the sewage pipe and the malodor is detected in the manhole or rain gutter.

More specifically, it consists of odor monitoring system and odor alarm system using TRS (Total Reduced Sulfur) sensor.When odor substance increases above a certain range, it is cleaned by installing washing water (chemical dilution water) in the upstream pipe. The present invention relates to a technology capable of quickly cutting off the possibility of complaints by putting water into sewage pipes and efficiently reducing odors generated around the pipes.

In the conventional sewage pipe, there is no way to effectively reduce the odor generated by organic matter and sediment, and has been the subject of various complaints.

However, the reality is that no countermeasures have been prepared.

On the other hand, there is a patent registration No. 0761061 (September 17, 2007) of [Joe-Kyung] [Drug control device capable of remote control],

The patent relates to a chemical input device controller capable of remotely controlling a chemical input to disinfect the groundwater taken from the wells of the liver abnormal water supply, or a chemical input to purify the wastewater and sewage from the wastewater treatment plant through an integrated management system.

It is unreasonable to apply it directly to sewer pipes.

Accordingly, the present invention is a technology for effectively blocking the odor in order to prevent the odor generated by organic matter and sediment in the sewage pipe is volatilized through the manhole or rain gutter, it is composed of a system to monitor the odor of the sewage pipe and control the odor .

The system for controlling odor is to put clean water (chemical dilution water) in conduit in a short time, to dilute sediment or odor generating material momentarily, or to introduce rinsing water containing oxidizing agent to reduce odor and oxidize odor substance. It is a technology to reduce.

It is believed that there is no current technology for quickly and efficiently reducing local odor problems generated around sewage pipes or rain gutters as in the present invention.

As a technology to reduce the odor generated in sewage pipes, there are various commercially available products at home and abroad that install odor prevention covers in rain gutters or manholes to prevent odors.

In particular, it is a technology that can not directly reduce the odor at that time by monitoring the time of occurrence of odor as in the present invention.

In addition, it is considered that there is no technology to apply the TRS sensor to the sewage pipe, and to monitor the odor monitoring and control technology and to build the control system to drive the alarm system and the odor reduction process accordingly.

That is, the present invention is a technology for continuously monitoring and reducing odor generated around sewage pipes and rain gutters, and provides a technology for monitoring the odor when it occurs and operating the cleaning system at a specific odor concentration abnormality to reduce the odor. .

In order to achieve the above object, the odor reduction system for sewage pipe according to the present invention is

Upstream washing water input; And

A downstream odor detector;

, ≪ / RTI >

When odor is detected in the odor detection unit is characterized in that to discharge the washing water in the input unit.

In addition, the odor reduction system for sewage pipe according to the present invention, the washing water input unit and the washing water storage tank,

It further comprises a solenoid valve installed on the pipe connecting the sewage pipe and the washing water storage tank, and further comprises a central control unit for opening the solenoid valve when detecting odor,

The odor detection unit is made of a TRS sensor, when the measured odor concentration exceeds a reference value, the central control unit operates the solenoid valve of the washing water input unit,

The odor detection unit preferably further includes an intake pump provided in a pipe connecting the TRS sensor and the sewer pipe.

As described above, the odor reduction system for sewage pipes according to the present invention is a technology for continuously monitoring and reducing odors generated around sewage pipes and rain gutters, by monitoring them when odors are generated and operating a odor reduction system when a specific odor concentration is abnormal. It is possible to provide a technique for reducing odor.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The odor reduction system (S) for sewage pipes according to the present invention comprises an upstream washing water input unit and a downstream odor detection unit.

 As can be seen in Figure 1 (the sewage pipe (P) is shown to have a gradient) of the odor substance control concept of the sewage pipe using the TRS sensor,

The washing water inlet 10 installed upstream of the sewage pipe, especially near the upstream manhole M1 or rain gutter, may be washing water (especially, dilution water containing a chemical (oxidizing agent) (eg, NaOCl)) storage tank ( 11) (each consisting of a chemical tank 11B and a washing water tank 11A which is chemical dilution water),

The washing water storage tank 11, particularly the pipe (13p) for connecting the cleaning water tank (11A) and the sewage pipe (P), the pipe 15p for connecting the chemical tank (11B) and the cleaning water tank (11A) is provided And solenoid for chemical injection automation (cleaning water input control with oxidant) in the pump 15 for metered supply of chemicals and in the piping (13p) connecting the washing water tank 11A and the sewer pipe (P). It consists of a valve 13.

In addition, the odor detection unit 20 is a TRS provided in a pipe 20p (alternatively corresponding to a manhole or rain gutter) that connects the sewer pipe P in the vicinity of the downstream manhole M2 or rain gutter. (Total Reduced Sulfur) sensor 21, the intake (air intake) pump 23 for supplying the air of the sewage pipe to the sensor, and the moisture contained in the air supplied from the sewage pipe to remove the sensor to protect and sense the sensitivity It comprises a water removal means 25 to increase.

The TRS sensor 21 may be purchased by a product name Jerome meter (model name 631-X trs) of Arizona Instrument, USA, or a product of Teledyne Technologies, USA,

In addition, it is possible to use a specific sensor for measuring the odor component (gas).

In addition, the water removing means 25 may be a conventional moisture inlet blocking filter.

On the other hand, when rainy weather, such as rainy season sewage pipe (P) is full, it is preferable that the water supply means 27 is provided in order to block the inflow of sewage into the intake pump 23, the water supply means (float) (27A) float (27A) Can be configured using).

As can be seen in the enlarged circle of Figure 1, for the installation and stable lifting operation of the buckle 27A constituting the order means 27

The order means includes a guide 29, the guide is installed in the kg of the pump 23 of the inner peripheral surface of the pipe (20P),

The support ring 29A, which is in contact with the inner wall of the pipe, consists of a guider 29B at its center, and a connecting arm 29a connecting the support ring and the guider,

A slide arm 28 is connected to the upper portion of the buckle 27A, so that the tubular guider 29B is fitted inside and lowered.

A plurality of fixing pins (29p) for fixing the slide arm 28 to the guider (29B) is composed of a plurality (two in the figure) to be combined with the long groove (28a) of the slide arm to enable a stable lifting operation without shaking It is

Considering the lifting and lowering motion of the slide arm 28, which is constrained by the pipe-shaped guider 29B, even if the fixing pin 29p is one, no big problem will occur.

Moreover, it is preferable that the said opening 27A has the recessed part 27a dug | omitted at right angles, in order to improve the sealing property in the inlet part of the said pipe 20p, and this recessed part is preferably provided with the packing 27b.

Next, as shown in FIG. 2 and FIG. 3 and FIG. 1, respectively, which show the washing water input algorithm and the simulation test result graph for the odor control, the operation of the odor reduction system for sewage pipe according to the present invention is a sewage pipe (P). After sucking the air in through the intake pump 23 installed in the pipe 20P of the odor detection unit 20 and removing the moisture through the water removal means 25, the TRS sensor of the odor detection unit 20 ( 21) If the corresponding measurement value is exceeded the reference value stored in the memory of the central control unit 30 during the odor monitoring using the same,

The chemicals supplied by the central controller 30 through the pump 15 from the chemical tank 11B of the washing water input portion 10 are replenished, and this is supplied to the washing water tank 11A through the pipe 15P. After supplying the washing water stirred well by the impeller 11a in the cleaning water tank 11A, the solenoid valve 13 of the washing water inlet 10 is discharged and discharged into the sewage pipe P through the pipe 13p. When the odor is reduced and the measured value of the TRS sensor 21 is equal to or less than the reference value, the solenoid valve 13 is closed to block the washing water discharged to the sewer pipe P through the pipe 13P.

However, by classifying the washing water discharge amount of the washing water tank (11A) step by step according to the odor concentration, discharge the amount of washing water corresponding to each step, and in consideration of the sewage flow rate, the odor concentration that continues to exceed the reference value even after a certain time is detected In this case, the system can be constructed to discharge the washing water again.

Furthermore, the odor concentration can be controlled quickly by adjusting the amount of oxidizing agent,

If necessary, pumps can be added to the washing water tank in addition to the solenoid valves to quickly pump the washing water, thereby increasing the cleaning effect in the conduit and controlling the odor quickly.

In addition, a large amount of sewage pipe (P) cleaning water (stored in the washing water tank 11A) can be secured through two methods.

In the case of conduits that pass along relatively large roads or conduits that pass through large buildings, cleaning water can be supplied through a fire hydrant located on the side of the road.In other areas, rainwater can be collected and collected by collecting rainwater, and a small amount of oxidant is added to the microorganisms. It inhibits the activity and stores it, and when it is discharged, it adds the optimal amount of oxidizing agent to induce the oxidation of organic substances and odorous substances present in the conduit (P).

The concentration of the chemical (NaOCl) in the washing water tank (11A)

Calculate the amount of washing water discharged and the amount of water to be replenished (for this reason, it is preferable to introduce a flow rate sensor or a water level sensor in the washing water tank) to replenish the medicine through the pump 15 in the chemical tank 11B, and It takes a method of stirring well with the impeller 11a in the tank 11A,

The concentration of the washing water is always measured through a sensor (eg, a pH sensor), and when the reference value is not reached, the medicine tank 11B may be refilled with the medicine through the metering pump 15 to satisfy the concentration.

As such, the central control unit 30 (the control relationship is indicated by a dotted line in FIG. 1) for controlling the chemical concentration or the entire system is controlled by the pumps 15 and 23, the solenoid valve 13, and the impeller 11a.

The system is constructed to display the installation status of the TRS sensor in the control area in a map form, and an alarm is issued when the odor concentration exceeds the reference value.

Depending on the flow path of the sewage, it simultaneously operates the multi-zone chemical inputs,

By narrowing the suspected odor cause area through the on-site tracking step, it is possible to make initial response to the odor cause provider.

In addition, even if a malodorous notification is received in connection with the administrative system, the system can be constructed to reduce the malodor by operating the medicine input unit provided upstream of the reporting area.

As described above, the present invention is a technique for rapidly and efficiently reducing odors in the occurrence of habitual odors and civil complaints generated through sewage pipes, especially in urban areas.

It is possible to operate a relatively simple odor control process by monitoring the main odor-causing substances through real-time monitoring sensors and generating alarm signals in advance and generating generated alarm signals as control factors. .

In addition, the odor control process according to the present invention is composed of a process that can effectively reduce the odor by adding an oxidizing agent (chemical) to the contaminated washing water to temporarily inhibit microbial activity in the sediment, and oxidize organic matter and odorous substances. ,

If necessary, a large amount of washing water (which may be simple water instead of chemical dilution water) flows in the upstream sewage pipe based on the area where the odor is generated, causing a strong flow rate of sediment deposited in the pipe (P1). ), Which can be combined with a chemical dilution discharge process or stand alone,

The terms 'clean water' and 'clean water discharge' are intended to encompass both of these odor reduction processes.

Furthermore, in consideration of the facility cost, as shown in FIG. 1, only rain gutters or manholes (M2) in areas where odor complaints occur habitually in residential areas and malls among rain gutters or manholes in general sewage pipes (P) are selected. Install the odor detection unit 20 including a TRS sensor 21 that can be monitored,

In the upstream conduit, a washing water input section 10 for controlling the odor generated in the downstream conduit is provided,

The odor detection unit 20 for odor monitoring using the washing water input unit 10 including the oxidizing agent (NaOCl) and the TRS sensor may be connected to the central control unit 30 and operated.

The washing water input algorithm is as shown in FIG.

When the TRS measurement concentration at the target point is higher than the reference concentration (for example, 350 ppb), open the solenoid valve so that the washing water containing the oxidant is introduced into the conduit (P).

After that, if the measured concentration is lower than the reference concentration in the TRS sensor, the solenoid valve is closed to stop the input of the washing water.

Figure 3 is a graph showing the odor control effect according to the presence or absence of control, the presence of the control water, the presence of oxidizing agent to control the odor generated in the sewage pipe by artificially adding odorous substances in the sewage pipe model (artificially It is a graph showing the odor control effect depending on whether or not the odor control system is operated by the above).

When the malodor control logic proposed in the present invention is operated, it can be seen that the concentration of the malodorous substance is maintained not to exceed the upper limit control value (1,300 ppb). The upper control value is the level of odor when a person smells directly. Therefore, the odor may be controlled if the upper limit control value is not exceeded. Keeping the control value at 350 ppb is low because the odor is generated by volatilization in the air, and the control value was kept low in consideration of the increase in some degree even when flowing the washing water. In addition, as shown in Figure 3 there is an advantage that the rinsing water containing the oxidizing agent can control the odor faster than the normal washing water. Increasing the odor control effect by shortening the running time of the washing water (when the odor control logic proposed in the present invention is operated, it can be seen that the concentration of the odor substance is kept close to the reference concentration). Therefore, similar results can be obtained when this is applied to actual conduits.

In the above description, a conventionally known technique related to a TRS sensor, an odor reduction specific oxidant (NaOCl) input amount, etc. is omitted, but those skilled in the art can easily infer, infer, and reproduce it.

In addition, in the above description of the present invention, a system having a specific configuration and shape has been described with reference to the accompanying drawings. However, the present invention can be variously modified, changed, and replaced by those skilled in the art. It should be interpreted as falling within the protection scope of the invention.

1 is a conceptual diagram of a bad smell control of sewage pipe using a TRS sensor.

2 is a washing water input algorithm for odor control.

3 is a graph of the simulation results of the washing water input for odor control.

<Description of the symbols for the main parts of the drawings>

S: Odor reduction system P: Sewage pipe

M1, M2: Manhole 10: Rinsing water inlet

11: Washing water storage tank 13: Solenoid valve

15: pump 20: odor detection unit

21: sensor 23: intake pump

25: water removal means 27: order means

27A: Port 30: Central control unit

Claims (4)

Upstream washing water input; And A downstream odor detector; , &Lt; / RTI &gt; The washing water input unit Washing water storage tank consisting of a chemical tank and a washing water tank, A pipe connecting the chemical tank and the washing water tank, A pump provided in the pipe, Piping connecting the washing water tank and sewage pipe, and Solenoid valve provided in the pipe Including, When odor is detected in the odor detection unit, the quantitative medicine is supplied from the chemical tank to the washing water tank through a pump provided in a pipe connecting the chemical tank and the washing water tank to supply the rinsing water to the washing water inlet. The rinsing water well stirred by the impeller in the rinsing water tank is opened and the solenoid valve of the rinsing water inlet is discharged to the sewage pipe through the pipe to reduce odor. When the odor is reduced, the solenoid valve is closed and discharged to the sewer pipe through the pipe. Further comprising a central control unit for controlling to block the washing water to be, The odor detection unit Includes a TRS sensor, The odor reduction system for sewage pipes further comprises an intake pump provided in the pipe connecting the TRS sensor and the sewage pipe to supply air in the sewage pipe to the TRS sensor. delete The method of claim 1, The odor detection unit The odor reduction system for sewage pipes, characterized in that it further comprises a water removal means for protecting the sensor by removing moisture contained in the air supplied from the sewage pipe to increase the sensitivity. The method according to claim 1 or 3, The odor detection unit When the sewage pipe is full, in order to block the inflow of sewage into the intake pump, It is installed at the beginning of the pipe connecting the sewage pipe and the TRS sensor, the concave inlet is formed to increase the sealing when combined with the pipe, the mouth having a packing provided in the concave; A guide ring having a support ring in contact with the inner wall of the pipe, and having a guider at the center of the support ring, and a connecting arm connecting the support ring and the guider; A slide arm coupled to the buckle and having a long groove which is fixed to the guider through a fixing pin to allow sliding of the buckle. Order means consisting of Odor reduction system for sewage pipe further comprising a.

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