CN210834884U

CN210834884U - PH sampling test device

Info

Publication number: CN210834884U
Application number: CN201921670250.0U
Authority: CN
Inventors: 黄光华
Original assignee: Hunan Sanchuang Futai Equipment Management Co ltd
Current assignee: Hunan Sanchuang Futai Equipment Management Co ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-06-23
Anticipated expiration: 2029-10-08

Abstract

The utility model discloses a PH sampling test device, which comprises a solution circulation part, a first valve, a second valve and a flushing part for providing back flushing liquid, wherein the solution circulation part comprises a main pipe, an auxiliary pipe and a liquid outlet pipe, and the main pipe is used for connecting a solution tank; a first valve and a second valve are arranged between the two ends of the auxiliary pipe at intervals, one end of the auxiliary pipe is communicated with the main pipe, and the other end of the auxiliary pipe is communicated with the liquid outlet end of the flushing component; one end of the liquid outlet pipe is communicated with the auxiliary pipe between the first valve and the second valve, and the other end of the liquid outlet pipe is used for guiding the solution back to the solution pool; the solution circulating part is connected with a circulating pump so that the solution in the solution pool enters the solution circulating part through the circulating pump; the PH meter is arranged on the liquid outlet pipe, and a probe of the PH meter extends into the inner cavity of the liquid outlet pipe. During the PH sampling test, the first valve is opened, and the second valve is closed; after the test stops, the first valve is closed, the second valve is opened, the backflushing liquid enters the liquid outlet pipe and washes the probe of the PH meter, scaling is avoided, and the service life is prolonged.

Description

PH sampling test device

Technical Field

The utility model relates to an industry PH testing arrangement field, concretely relates to PH sample testing arrangement.

Background

The medium required for measuring the pH value in industry often has strong acidity, strong alkalinity and other corrosive characteristics which are easy to form bars, and scales on a probe of the pH meter easily to influence the accuracy of measurement and the service life of the pH meter. Meanwhile, due to the corrosiveness of the medium, the work of manually cleaning the probe is difficult and dangerous greatly. Particularly, during the non-working period, due to the loss of the measured medium solution at the original measuring point position, the problem that the pH meter probe is lack of the infiltration of the medium solution and is easy to dry and damage occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a PH sampling test device solves the problem of the easy scale deposit of PH meter probe that current PH sampling test device exists.

In order to achieve the above object, the PH sampling and testing device provided by the present invention comprises a solution circulation component, a first valve, a second valve and a flushing component for providing a back flushing liquid, wherein the solution circulation component comprises a main pipe, an auxiliary pipe and a liquid outlet pipe, and the main pipe is used for connecting a solution tank; the first valve and the second valve are arranged between the two ends of the auxiliary pipe at intervals, one end of the auxiliary pipe is communicated with the main pipe, and the other end of the auxiliary pipe is communicated with the liquid outlet end of the flushing component; one end of the liquid outlet pipe is communicated with the auxiliary pipe between the first valve and the second valve, and the other end of the liquid outlet pipe is used for guiding the solution back to the solution pool; the solution circulating part is connected with a circulating pump so that the solution in the solution pool enters the solution circulating part through the circulating pump; the PH meter is installed in the drain pipe, just the probe of PH meter stretches into the inner chamber of drain pipe.

Preferably, the liquid outlet pipe is a U-shaped pipe, two arms of the liquid outlet pipe are unequal in length, and the PH meter is arranged on a short arm of the liquid outlet pipe.

Preferably, the drain pipe is including the short arm pipe, bottom tube and the long arm pipe that communicate in proper order, short arm pipe with long arm pipe parallel interval sets up, just short arm pipe with long arm pipe perpendicular to respectively the bottom tube, the vertical intercommunication of long arm pipe the auxiliary pipe.

Preferably, one end of the short arm pipe, which is far away from the bottom pipe, is communicated with a liquid discharge pipe, a liquid discharge port of the liquid discharge pipe is higher than the top point of the short arm pipe, the liquid discharge port is positioned above the solution pool, and the PH meter is detachably inserted into the top of the short arm pipe.

Preferably, one end of the bottom pipe, which is close to the short arm pipe, is communicated with a sewage discharge pipe, and a third valve is arranged on the sewage discharge pipe.

Preferably, an opening is formed at the top of the short arm pipe, and the opening is provided with a mounting flange for mounting the PH meter

Preferably, the PH meter comprises a flange plate and the probe, wherein the probe penetrates through the flange plate and is vertically fixed on the flange plate; the probe is inserted into the short arm pipe and the flange plate is mounted on the mounting flange through a fastener seal.

Preferably, the flushing component comprises a tank, a pipeline and a pump which are connected in sequence, and an outlet of the pump is connected with an inlet of the second valve.

Preferably, the solution circulating part further comprises a fourth valve disposed on the secondary pipe between the first valve and the liquid outlet pipe.

Preferably, the PH sampling and testing device further comprises an automatic solution supplementing device, wherein the automatic solution supplementing device comprises a solution supplementing pipe arranged above the solution pool and an electric valve arranged at the bottom of the solution supplementing pipe.

In the technical scheme of the utility model, when the PH sampling test is carried out, the circulating pump is started, the first valve is opened, the second valve is closed, and the solution flows through the liquid outlet pipe and the PH value of the solution is detected by the probe of the PH meter; after the PH sampling test is stopped, the circulating pump is stopped, the first valve is closed, the second valve is opened, the backflushing liquid in the flushing component enters the liquid outlet pipe and flushes the probe of the PH meter, the probe is prevented from scaling, the accuracy of the sampling test is improved, and the service life of the PH meter is prolonged; meanwhile, whether the solution circulation part is blocked or not can be judged by observing the state of the solution discharged from the liquid outlet pipe. The solution circulation component and the PH meter are cleaned at regular time without maintenance, so that the difficulty and danger of manually cleaning the probe are reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram (arrows indicate flow directions) of an embodiment of the present invention.

Fig. 2 is a partially enlarged view of a in fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Solution flow-through member	11	Main pipe
12	Auxiliary pipe	13	Liquid outlet pipe
				14	Fourth valve	2	First valve
3	Second valve	4	Flushing component
				41	Box body	42	Pipeline
43	Pump and method of operating the same	5	Solution pool
				6	Circulating pump	7	PH meter
71	Probe head	72	Flange plate
				73	Fastening piece	8	Third valve
9	Automatic solution supplementing device	91	Solution replenishing pipe
				92	Electric valve	100	PLC controller

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The utility model provides a PH sample testing arrangement.

As shown in fig. 1, the PH sampling and testing device disclosed in this embodiment includes a solution circulating component 1, a first valve 2, a second valve 3, and a flushing component 4 for providing a back flushing liquid, where the solution circulating component 1 includes a main pipe 11, an auxiliary pipe 12, and a drain pipe 13, and the main pipe 11 is used to connect to a solution tank 5; the first valve 2 and the second valve 3 are arranged at intervals between the two ends of the auxiliary pipe 12, one end of the auxiliary pipe 12 is communicated with the main pipe 11, and the other end of the auxiliary pipe 12 is communicated with the liquid outlet end of the flushing component 4; one end of the liquid outlet pipe 13 is communicated with the auxiliary pipe 12 between the first valve 2 and the second valve 3, and the other end of the liquid outlet pipe 13 is used for guiding the solution back to the solution tank 5; the solution circulating part 4 is connected with a circulating pump 6, so that the solution in the solution pool 5 enters the solution circulating part 4 through the circulating pump 6; the PH meter 7 is arranged in the liquid outlet pipe 13, and the probe 71 of the PH meter 7 extends into the inner cavity of the liquid outlet pipe 13.

In the technical scheme of the utility model, when the PH sampling test is carried out, the circulating pump 6 is started, the first valve 2 is opened, the second valve 3 is closed, and the solution flows through the liquid outlet pipe 13 and the PH value of the solution is detected by the probe 71 of the PH meter 7; after the PH sampling test is stopped, the circulating pump 6 is stopped, the first valve 2 is closed, the second valve 3 is opened, the back flushing liquid in the flushing component 4 enters the liquid outlet pipe 13 and flushes the probe 71 of the PH meter 7, so that the probe 71 is prevented from scaling, the sampling test accuracy is improved, and the service life of the PH meter 7 is prolonged; meanwhile, whether the solution flowing part 4 is blocked or not can be judged by observing the state of the solution discharged from the liquid outlet pipe 13. The solution circulation component 1 and the PH meter 7 are cleaned at regular time without maintenance, so that the difficulty and danger of manually cleaning the probe are reduced.

Preferably, the circulation pump 6 is disposed at the bottom of the solution tank 5, and the main pipe 11 is vertically disposed between the circulation pump 6 and the desulfurization tower (not shown).

Preferably, the first valve 2 and the second valve 3 are both solenoid valves, and the first valve 2 and the second valve 3 are interlock valves, i.e. the first valve 2 is closed and the second valve 3 is open, whereas the first valve 2 is open and the second valve 3 is closed.

Preferably, the liquid outlet pipe 13 is a U-shaped pipe, two arms of the liquid outlet pipe 13 are unequal in length, and the PH meter 7 is disposed on a short arm of the liquid outlet pipe. The long arm is used for communicating the secondary pipe 12 to ensure that the solution passes through the top point of the short arm. The liquid outlet pipe 13 is simple to process and manufacture and convenient to maintain.

Preferably, drain pipe 13 includes short arm pipe 131, bottom tube 132 and the long arm pipe 133 that communicate in proper order, short arm pipe 131 with the parallel interval of long arm pipe 133 sets up, just short arm pipe 131 with long arm pipe 133 is perpendicular to respectively bottom tube 132, long arm pipe 133 is vertical to be communicated vice pipe 12. The liquid outlet pipe 13 is positioned between the secondary pipe 12 and the solution tank 5, so that the solution can flow through the liquid outlet pipe 13. Preferably, one end of the short-arm tube 131, which is away from the bottom tube 132, is communicated with a liquid discharge tube 134, a liquid discharge port 135 of the liquid discharge tube 134 is higher than the vertex of the short-arm tube 131, the liquid discharge port 135 is located above the solution pool 5, the sampled solution returns to the acid-base pool, the solution is not wasted, and the PH meter 7 is detachably inserted into the top of the short-arm tube 131.

Specifically, the liquid discharge pipe 134 includes a horizontal pipe 1341 and an elbow 1342, the elbow 1342 is arc-shaped, one end of the horizontal pipe 1341 is vertically communicated with the top of the short arm pipe 131, the elbow 1342 is horizontally fixed at the other end of the horizontal pipe 1341 with the arc vertex facing upwards, and the outlet of the elbow 1342 is a liquid discharge port 135.

Preferably, one end of the bottom pipe 132 close to the short arm pipe is communicated with a sewage draining pipe 136, a third valve 8 is arranged on the sewage draining pipe 136, and the outlet end of the sewage draining pipe is connected with a trench 137. The third valve 8 is normally closed, and when the outlet pipe 13 discharges the sewage, the impurities deposited on the bottom pipe 132 can be rapidly discharged by opening the third valve 8.

Preferably, an opening is formed at the top of the short arm tube 131, the opening is provided with a mounting flange 138 for mounting the PH meter, and the mounting flange 138 is horizontally welded to the top of the short arm tube 131.

As shown in fig. 2, preferably, the PH meter comprises a flange 72 and the probe 71, the probe 71 passes through the flange 72 and is vertically fixed on the flange 72, and the detection end of the probe 71 extends out of the flange 72; the probe is inserted into the short arm tube 131 and the flange is sealingly mounted to the mounting flange by fasteners 73. When the PH sampling test device does not work, the PH meter does not need to be taken out.

Specifically, the probe 71 is inserted into an opening at the top of the short arm pipe 131, the probe 71 and the flange 72 are connected in a sealing manner, and the fastening member 73 is a bolt. As shown in fig. 1, the flushing part 4 preferably comprises a tank 41, a pipeline 42 and a pump 43 which are connected in sequence, and an outlet of the pump 43 is connected with an inlet of the second valve 3. In this embodiment, the back flushing liquid is tap water, and the tank 41 is filled with the tap water. When the second valve 3 is opened, the pump 43 is started, tap water enters the liquid outlet pipe 13, washes the probe 71 and then falls into the solution pool 5.

Preferably, the solution flowing part 1 further comprises a fourth valve 14, and the fourth valve 14 is arranged on the secondary pipe 12 between the first valve 2 and the liquid outlet pipe 13.

Specifically, the fourth valve 14 is a manual valve, and the flow rate through the secondary pipe 12 can be controlled by adjusting the fourth valve 14, so that the flow rate can be adjusted in real time according to the state of the solution.

Preferably, the PH sampling and testing device further comprises an automatic solution supplementing device 9, wherein the automatic solution supplementing device comprises a solution supplementing pipe 91 arranged above the solution pool and an electric valve 92 arranged at the bottom of the solution supplementing pipe.

Specifically, when the solution value detected by the PH meter exceeds a set range, the electric valve 92 is opened to replenish the slurry.

Further, the PH sampling and testing device further comprises a PLC controller 100, the PLC controller is electrically connected to the PH meter 7, and the PLC controller 100 is electrically connected to the electric valve 92; and after the detection value of the PH meter exceeds a set threshold value, the PLC 100 controls the electric valve 92 to be opened to complete the adjustment of the PH value of the solution pool. The stable addition of the slurry replenishing liquid can be automatically controlled by the solution tank according to the pH value through the PLC 100, so that unmanned control is realized. Furthermore, the PH sampling test device can realize on-line detection, and the measured PH value can be timely and accurately reflected.

The above is only the preferred embodiment of the present invention, not limiting the scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A PH sampling test device is characterized by comprising a solution circulation component, a first valve, a second valve and a flushing component for providing a back flushing liquid, wherein the solution circulation component comprises a main pipe, an auxiliary pipe and a liquid outlet pipe, and the main pipe is connected with a solution tank; the first valve and the second valve are arranged between the two ends of the auxiliary pipe at intervals, one end of the auxiliary pipe is communicated with the main pipe, and the other end of the auxiliary pipe is communicated with the liquid outlet end of the flushing component; one end of the liquid outlet pipe is communicated with the auxiliary pipe between the first valve and the second valve, and the other end of the liquid outlet pipe is used for guiding the solution back to the solution pool; the solution circulating part is connected with a circulating pump so that the solution in the solution pool enters the solution circulating part through the circulating pump; the PH meter is installed in the drain pipe, just the probe of PH meter stretches into the inner chamber of drain pipe.

2. The PH sampling test device of claim 1, wherein the outlet tube is a U-shaped tube, the two arms of the outlet tube are not equal in length, and the PH meter is disposed on the short arm of the outlet tube.

3. The PH sampling test device of claim 1, wherein the liquid outlet pipe comprises a short arm pipe, a bottom pipe and a long arm pipe which are sequentially communicated, the short arm pipe and the long arm pipe are arranged in parallel at intervals, the short arm pipe and the long arm pipe are respectively perpendicular to the bottom pipe, and the long arm pipe is vertically communicated with the secondary pipe.

4. A PH sampling test device according to claim 3, wherein the end of the short arm tube facing away from the bottom tube is connected to a drain tube, the drain outlet of the drain tube is higher than the top of the short arm tube, the drain outlet is located above the solution pool, and the PH meter is detachably inserted into the top of the short arm tube.

5. A PH sampling test device according to claim 4, wherein a drain pipe is communicated with one end of the bottom pipe close to the short arm pipe, and a third valve is arranged on the drain pipe.

6. A PH sampling test device according to claim 4, wherein the top of the short arm tube is formed with an opening provided with a mounting flange for mounting the PH meter.

7. A PH sampling test device according to claim 6, wherein the PH meter comprises a flange and the probe passes through the flange and is vertically fixed on the flange; the probe is inserted into the short arm pipe and the flange plate is mounted on the mounting flange through a fastener seal.

8. A PH sampling test device according to claim 1, wherein said flushing means comprises a tank, a pipe and a pump connected in series, the outlet of said pump being connected to the inlet of said second valve.

9. A PH sampling test device according to any one of claims 1 to 8, wherein said solution flow means further comprises a fourth valve disposed on said secondary tube between said first valve and said outlet tube.

10. The PH sampling test device according to any one of claims 1 to 8, further comprising an automatic solution replenishment device comprising a solution replenishment pipe disposed above the solution tank and an electrically operated valve disposed at a bottom of the solution replenishment pipe.