Rebirth, I want to be a prince

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Zhou Weishun left people from the construction safety supervision department at the scene, and also left Gong Li and Chen Gong behind. Zhang Tongxun seemed to understand that Zhou Weishun wanted to leave him room for investigation.Slowly, I understood Zhou Weishun's thoughts, but he sneered slightly in his heart, thinking that Zhou Weishun seemed fair, but in fact he hoped that Zhang Tongxun would not startle the snake, and it would be best if he had enough evidence to defeat the original Zhao Yida, who is the top leader and has enough votes in the Standing Committee.

However, this can at least give justice to the dead. Zhang Tongxun will not be so ignorant. The battle between Zhou Weishun and Zhao Yida has been going on for a long time, but Zhang Tongxun is only acting on the principle of an ordinary official. He doesn't want to lean towards one side , as long as no one interferes with his judicial independence.

Shi Weixian had already greeted the man and the woman. As the deputy mayor in charge of municipal construction, he naturally had to deal with the construction safety supervision department. Although he was not particularly familiar with these two, he had met them a few times. meet again.

Zhang Tongxun looked at it, but pulled Shi Lei aside: "Boy, you have already intervened in this matter, and now you have to help me keep asking. I am a big bastard, about buildings, especially about septic tanks and the like." , I don’t understand at all. Today you are responsible for helping me find out. When the truth comes out, I will ask the Public Security Bureau to send a silk banner to your home.”

Shi Leina's wry smile, it seems that Zhang Tongxun is relying on him.However, he is also willing.

In that life, he didn't meet Zhang Yisong in the first few years, and Zhang Tongxun naturally didn't have much contact with him.But after he met Zhang Yisong and was recognized by him, Zhang Tongxun also took care of Shi Lei.It seems that Zhang Tongxun was well aware of Shi Weixian's unjust case in that life, but because of the rules in the officialdom, and because he didn't have anyone to be too suspicious of (unlike Shi Lei's constant help in this life), It is also impossible for him to help Shi Weixian reverse the case.Even because of Zhang Tongxun's care for Shi Lei later, not to mention that Zhang Yisong completely regarded him as a brother of his first-milk compatriots, Shi Lei couldn't resign.What's more, he also hopes to investigate this matter clearly.

Throughout the development of the accident, Shi Lei had a clear clue in his mind, but what kind of support points could be dug out behind the Bibo building, Shi Lei could only figure out step by step.Of course Shi Lei has such strength. In fact, he should be a middle-aged man who is close to 40 years old and has experienced ups and downs in life that most people present have never experienced.At least the mind does.

"Let Xiaolei ask." Zhang Tongxun whispered to Shi Weixian.

Shi Weixian hesitated for a moment, and seemed to feel that Shi Lei knew many details here better than himself, so he nodded in agreement.

The two people from the construction safety supervision department were naturally a little puzzled, and didn't understand why it was the turn of a teenager to interrogate them-in their eyes, this was interrogation.

Shi Lei didn't show any fear at all, he had an expression of an old god, which seemed somewhat unbelievable to others, but in Shi Lei's heart, this was the truest self.A person who often comes into contact with people like the Deputy Prime Minister of the State Council and the head of the Organization Department of the Central Committee of the Communist Party of China has nothing to be afraid of when encountering these small characters, even if they look much older than him.

"I'm asking you a few questions on behalf of Director Zhang." Shi Lei paused for a while, giving the two people enough time to look to Zhang Tongxun for advice, and then said: "I won't say much about the situation at the scene, and you all know it well. , I also know that this accident involved several lives, the size of this responsibility must be much clearer to both of you than me, a high school student who just graduated. Regarding the septic tank nearby that was filled 13 years ago, I think I know what the situation was when you two monitored it. In short, if the biogas in the septic tank leaks to the air-raid shelter, is the concentration enough to cause an explosion? Of course, this happened during the construction process In the case of an open flame."

The two of them seemed to be having difficulty adapting to such a serious questioning by a child, but the older man had already heard enough professional knowledge from Shi Lei's questioning, and he knew Shi Lei so well in his heart Somewhat surprised. .

After pondering for a while, the woman turned her gaze to the man, naturally hoping that he would speak.

"My surname is Wu, and I am responsible for the engineering safety monitoring work here together with Xiaoliu. The report submitted by Bibo Construction took into account the existence of the septic tank. When they conducted the inspection, we had someone on the scene, supervised the whole process, and finally collected We have also tested the samples of the septic tank and did not find that the amount of methane contained in this septic tank exceeded the standard."

Shi Lei nodded: "I believe both of you know better than me that the biogas reaches the standard of explosion, more than 86% of the possibility of explosion..."

The man surnamed Wu interrupted Shi Lei: "To be precise, it is between 86% and 208%. If it exceeds 21%, the oxygen content will not cause an explosion even if the oxygen content is insufficient."

"I can't compare the professional knowledge with the two of you, but this is not the point. I want to know, how does your monitoring determine that the biogas in the septic tank will not cause an explosion hazard to the air-raid shelter?"

The man surnamed Wu seemed to realize that he still underestimated Shi Lei, so he couldn't help pondering for a moment, his chin pouted slightly: "The situation is not what you imagined, it is impossible for us to calculate the volume of biogas in the entire septic tank and compare it with the volume of the air-raid shelter. comparison, and there are too many uncertain factors. Engineering safety monitoring is not carried out in this way. The reason why we believe that the biogas cannot meet the explosion standard is because after testing, the biogas contained in this septic tank has a content of methane The composition is less than 30%, and only junior high school chemistry knowledge is required to know that the use of biogas as fuel gas requires at least a methane content of more than 50%. According to our testing, the biogas produced in the septic tank here is sulfurized The hydrogen content is high, about 5% to 8%, and it smells more pungent than ordinary methane. I also learned about the situation before, and I heard that some people smelled the smell of methane. Of course, this has nothing to do with Gas, that is, the smell of petroleum gas is easy to confuse. I think this is more of the reason."

The man surnamed Wu in front of him seemed very calm, Shi Lei couldn't see any symptoms that he was trying to hide.However, thinking back on his words carefully, Shi Lei vaguely grasped an ambiguous place in the words.

"Uncle Wu, I noticed that what you said just now was 'someone of us was present when the test was carried out'. I wonder if the exact meaning of this sentence means that you were not present that day?"

The man surnamed Wu was taken aback for a moment, and then admitted frankly: "My little grandson was sick that day, and I took him to the hospital to hang water. But Xiao Liu is always there."

Shi Lei smiled, knowing that he had found the key to the problem, he immediately turned to look at the woman surnamed Liu: "Sister Liu, since Uncle Wu was not present that day, I will ask you the next question. The quality inspection engineer of Bibo Construction When extracting the biogas from the septic tank, have you supervised the whole process and can you confirm that they have not violated any regulations?"

Obviously, this question was caught off guard. The woman surnamed Liu seemed to be only assisting the man surnamed Wu in monitoring work. She probably didn't expect Shi Lei to know that the man surnamed Wu was not there that day so quickly.

What's more, it was the question itself that stumped the woman surnamed Liu. It seemed that she didn't know how to answer for a while.

Shi Lei waited for a while, then smiled and said: "Is this question difficult to answer? In fact, you only need to monitor according to the regulations, and you can easily know whether the other party has tampered with the samples taken. But the so-called, Or let me change the question. In the samples you collected that day, the content of methane was less than 30%, and the content of hydrogen sulfide was more than 5%. What kind of gas? Just describe it roughly.”

The expression of the woman surnamed Liu was a little more relaxed. She probably felt that this question was not harmful. After recalling it for a while, she replied: "Nitrogen is about 20.00%, oxygen is less than 10%, and carbon dioxide is about 20%... …I don’t remember the exact number, but it’s about the same.”

Shi Lei nodded again, already confident.

Looking at the man surnamed Wu again, Shi Lei said: "Uncle Wu, I know that the carbon dioxide content in biogas is usually between 20% and 40%. If you remove the carbon dioxide in the 60% gas after excluding methane and hydrogen sulfide, you Maybe we'll find something too."

The man surnamed Wu made a simple calculation, and suddenly his face turned pale with shock: "Air..." His lips whispered, and slowly spit out these two words.

"The nitrogen content in the air is usually less than 2%, oxygen is about [-]%, and other gases add up to less than [-]%. However, the data given by Sister Liu seems to be very similar to the content of various gases in the air. So back to the first part One question, Elder Sister Liu, if you continue to hide it, it may set you on fire, the explosion of methane gas is no joke." Shi Lei took a step forward, staring at the woman surnamed Liu, his expression was extremely serious, and his tone became more and more serious Seriously, he said almost word for word, "When Bibo Construction collected samples, did you supervise the whole process to ensure that there were no violations in their sample collection process!?"

The woman surnamed Liu turned pale in an instant in front of Shi Lei's formidable aura, and stepped back two steps. Even at a distance of half a meter, Shi Lei seemed to be able to hear the sound of the woman's heart beating violently under her towering and full chest.

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